fix: Lint

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>

.env.development

@@ -12,7 +12,7 @@ VITE_APP_WS_SERVER_URL=http://localhost:3002
 VITE_APP_PLUS_LP=https://plus.excalidraw.com
 VITE_APP_PLUS_APP=http://localhost:3000
 
-VITE_APP_AI_BACKEND=http://localhost:3016
+VITE_APP_AI_BACKEND=http://localhost:3015
 
 VITE_APP_FIREBASE_CONFIG='{"apiKey":"AIzaSyCMkxA60XIW8KbqMYL7edC4qT5l4qHX2h8","authDomain":"excalidraw-oss-dev.firebaseapp.com","projectId":"excalidraw-oss-dev","storageBucket":"excalidraw-oss-dev.appspot.com","messagingSenderId":"664559512677","appId":"1:664559512677:web:a385181f2928d328a7aa8c"}'
 
@@ -27,7 +27,7 @@ VITE_APP_ENABLE_TRACKING=true
 FAST_REFRESH=false
 
 # The port the run the dev server
-VITE_APP_PORT=3001
+VITE_APP_PORT=3000
 
 #Debug flags
 

.eslintrc.json

@@ -39,26 +39,5 @@
         "allowReferrer": true
       }
     ]
-  },
-  "overrides": [
-    {
-      "files": ["packages/excalidraw/**/*.{ts,tsx}"],
-      "excludedFiles": ["packages/excalidraw/**/*.test.{ts,tsx}", "packages/excalidraw/**/*.test.*.{ts,tsx}"],
-      "rules": {
-        "@typescript-eslint/no-restricted-imports": [
-          "error",
-          {
-            "patterns": [
-              {
-                "group": ["@excalidraw/excalidraw"],
-                "message": "Do not import from the barrel 'index.tsx' files. Use direct relative imports to the specific module instead.",
-                "allowTypeImports": true
-              }
-            ],
-            "paths": [".", "..", "../..", "../../..", "../../../..", "../../../../..", "../index", "../../index", "../../../index", "../../../../index"]
-          }
-        ]
-      }
-    }
-  ]
+  }
 }

.github/workflows/autorelease-excalidraw.yml

@@ -12,10 +12,10 @@ jobs:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 2
-      - name: Setup Node.js
+      - name: Setup Node.js 18.x
         uses: actions/setup-node@v2
         with:
-          node-version: 20.x
+          node-version: 18.x
       - name: Set up publish access
         run: |
           npm config set //registry.npmjs.org/:_authToken ${NPM_TOKEN}

.github/workflows/lint.yml

@@ -9,10 +9,10 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - name: Setup Node.js
+      - name: Setup Node.js 18.x
         uses: actions/setup-node@v2
         with:
-          node-version: 20.x
+          node-version: 18.x
 
       - name: Install and lint
         run: |

.github/workflows/locales-coverage.yml

@@ -14,10 +14,10 @@ jobs:
         with:
           token: ${{ secrets.PUSH_TRANSLATIONS_COVERAGE_PAT }}
 
-      - name: Setup Node.js
+      - name: Setup Node.js 18.x
         uses: actions/setup-node@v2
         with:
-          node-version: 20.x
+          node-version: 18.x
 
       - name: Create report file
         run: |

.github/workflows/sentry-production.yml

@@ -10,10 +10,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - name: Setup Node.js
+      - name: Setup Node.js 18.x
         uses: actions/setup-node@v2
         with:
-          node-version: 20.x
+          node-version: 18.x
       - name: Install and build
         run: |
           yarn --frozen-lockfile
@@ -28,7 +28,7 @@ jobs:
           export SENTRY_RELEASE=$(sentry-cli releases propose-version)
           sentry-cli releases new $SENTRY_RELEASE --project $SENTRY_PROJECT
           sentry-cli releases set-commits --auto $SENTRY_RELEASE
-          sentry-cli sourcemaps upload --release $SENTRY_RELEASE --no-rewrite ./build/static/js/ --url-prefix "~/static/js"
+          sentry-cli releases files $SENTRY_RELEASE upload-sourcemaps --no-rewrite ./build/static/js/ --url-prefix "~/static/js"
           sentry-cli releases finalize $SENTRY_RELEASE
           sentry-cli releases deploys $SENTRY_RELEASE new -e production
         env:

.github/workflows/size-limit.yml

@@ -11,10 +11,10 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3
-      - name: Setup Node.js
+      - name: Setup Node.js 18.x
         uses: actions/setup-node@v3
         with:
-          node-version: 20.x
+          node-version: 18.x
       - name: Install in packages/excalidraw
         run: yarn
         working-directory: packages/excalidraw

.github/workflows/test-coverage-pr.yml

@@ -14,7 +14,7 @@ jobs:
       - name: "Install Node"
         uses: actions/setup-node@v2
         with:
-          node-version: "20.x"
+          node-version: "18.x"
       - name: "Install Deps"
         run: yarn install
       - name: "Test Coverage"

.github/workflows/test.yml

@@ -9,10 +9,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Setup Node.js
+      - name: Setup Node.js 18.x
         uses: actions/setup-node@v4
         with:
-          node-version: 20.x
+          node-version: 18.x
       - name: Install and test
         run: |
           yarn install

.nvmrc

@@ -0,0 +1 @@
+18

README.md

@@ -23,17 +23,23 @@
 <br />
 <p align="center">
   <a href="https://github.com/excalidraw/excalidraw/blob/master/LICENSE">
-    <img alt="Excalidraw is released under the MIT license." src="https://img.shields.io/badge/license-MIT-blue.svg"  /></a>
+    <img alt="Excalidraw is released under the MIT license." src="https://img.shields.io/badge/license-MIT-blue.svg"  />
+  </a>
   <a href="https://www.npmjs.com/package/@excalidraw/excalidraw">
-    <img alt="npm downloads/month" src="https://img.shields.io/npm/dm/@excalidraw/excalidraw"  /></a>
+    <img alt="npm downloads/month" src="https://img.shields.io/npm/dm/@excalidraw/excalidraw"  />
+  </a>
   <a href="https://docs.excalidraw.com/docs/introduction/contributing">
-    <img alt="PRs welcome!" src="https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat"  /></a>
+    <img alt="PRs welcome!" src="https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat"  />
+  </a>
   <a href="https://discord.gg/UexuTaE">
-    <img alt="Chat on Discord" src="https://img.shields.io/discord/723672430744174682?color=738ad6&label=Chat%20on%20Discord&logo=discord&logoColor=ffffff&widge=false"/></a>
+    <img alt="Chat on Discord" src="https://img.shields.io/discord/723672430744174682?color=738ad6&label=Chat%20on%20Discord&logo=discord&logoColor=ffffff&widge=false"/>
+  </a>
   <a href="https://deepwiki.com/excalidraw/excalidraw">
-    <img alt="Ask DeepWiki" src="https://deepwiki.com/badge.svg" /></a>
+    <img alt="Ask DeepWiki" src="https://deepwiki.com/badge.svg" />
+  </a>
   <a href="https://twitter.com/excalidraw">
-    <img alt="Follow Excalidraw on Twitter" src="https://img.shields.io/twitter/follow/excalidraw.svg?label=follow+@excalidraw&style=social&logo=twitter"/></a>
+    <img alt="Follow Excalidraw on Twitter" src="https://img.shields.io/twitter/follow/excalidraw.svg?label=follow+@excalidraw&style=social&logo=twitter"/>
+  </a>
 </p>
 
 <div align="center">

dev-docs/docs/@excalidraw/excalidraw/api/children-components/footer.mdx

@@ -9,7 +9,7 @@ You will need to import the `Footer` component from the package and wrap your co
 ```jsx live
 function App() {
   return (
-    <div style={{ height: "500px" }}>
+    <div style={{ height: "500px"}}>
       <Excalidraw>
         <Footer>
           <button
@@ -27,19 +27,19 @@ function App() {
 
 This will only work for `Desktop` devices.
 
-For `mobile` you will need to render it inside the [MainMenu](#mainmenu). You can use the [`useEditorInterface`](#useEditorInterface) hook to check the type of device, this will be available only inside the `children` of `Excalidraw` component.
+For `mobile` you will need to render it inside the [MainMenu](#mainmenu). You can use the [`useDevice`](#useDevice) hook to check the type of device, this will be available only inside the `children` of `Excalidraw` component.
 
 Open the `Menu` in the below playground and you will see the `custom footer` rendered.
 
 ```jsx live noInline
 const MobileFooter = ({}) => {
-  const editorInterface = useEditorInterface();
-  if (editorInterface.formFactor === "phone") {
+  const device = useDevice();
+  if (device.editor.isMobile) {
     return (
       <Footer>
         <button
           className="custom-footer"
-          style={{ marginLeft: "20px", height: "2rem" }}
+          style= {{ marginLeft: '20px', height: '2rem'}}
           onClick={() => alert("This is custom footer in mobile menu")}
         >
           custom footer

dev-docs/docs/@excalidraw/excalidraw/api/excalidraw-element-skeleton.mdx

@@ -172,7 +172,7 @@ convertToExcalidrawElements([
     type: "arrow",
     x: 450,
     y: 20,
-    startArrowhead: "circle",
+    startArrowhead: "dot",
     endArrowhead: "triangle",
     strokeColor: "#1971c2",
     strokeWidth: 2,

dev-docs/docs/@excalidraw/excalidraw/api/utils/utils-intro.md

@@ -292,7 +292,7 @@ viewportCoordsToSceneCoords(&#123; clientX: number, clientY: number },<br/>&nbsp
   appState: <a href="https://github.com/excalidraw/excalidraw/blob/master/packages/excalidraw/types.ts#L95">AppState</a><br/>): &#123;x: number, y: number}
 </pre>
 
-### useEditorInterface
+### useDevice
 
 This hook can be used to check the type of device which is being used. It can only be used inside the `children` of `Excalidraw` component.
 
@@ -300,8 +300,8 @@ Open the `main menu` in the below example to view the footer.
 
 ```jsx live noInline
 const MobileFooter = ({}) => {
-  const editorInterface = useEditorInterface();
-  if (editorInterface.formFactor === "phone") {
+  const device = useDevice();
+  if (device.editor.isMobile) {
     return (
       <Footer>
         <button
@@ -336,20 +336,12 @@ render(<App />);
 The `device` has the following `attributes`, some grouped into `viewport` and `editor` objects, per context.
 
 | Name | Type | Description |
-| ---- | ---- | ----------- |
-
-The `EditorInterface` object has the following properties:
-
-| Name | Type | Description |
-| --- | --- | --- | --- | --- | --- |
-| `formFactor` | `'phone' | 'tablet' | 'desktop'` | Indicates the device type based on screen size |
-| `desktopUIMode` | `'compact' | 'full'` | UI mode for desktop form factor |
-| `userAgent.raw` | `string` | Raw user agent string |
-| `userAgent.isMobileDevice` | `boolean` | True if device is mobile |
-| `userAgent.platform` | `'ios' | 'android' | 'other' | 'unknown'` | Device platform |
-| `isTouchScreen` | `boolean` | True if touch events are detected |
-| `canFitSidebar` | `boolean` | True if sidebar can fit in the viewport |
-| `isLandscape` | `boolean` | True if viewport is in landscape mode |
+| --- | --- | --- |
+| `viewport.isMobile` | `boolean` | Set to `true` when viewport is in `mobile` breakpoint |
+| `viewport.isLandscape` | `boolean` | Set to `true` when the viewport is in `landscape` mode |
+| `editor.canFitSidebar` | `boolean` | Set to `true` if there's enough space to fit the `sidebar` |
+| `editor.isMobile` | `boolean` | Set to `true` when editor container is in `mobile` breakpoint |
+| `isTouchScreen` | `boolean` | Set to `true` for `touch` when touch event detected |
 
 ### i18n
 

examples/with-script-in-browser/components/MobileFooter.tsx

@@ -12,10 +12,10 @@ const MobileFooter = ({
   excalidrawAPI: ExcalidrawImperativeAPI;
   excalidrawLib: typeof TExcalidraw;
 }) => {
-  const { useEditorInterface, Footer } = excalidrawLib;
+  const { useDevice, Footer } = excalidrawLib;
 
-  const editorInterface = useEditorInterface();
-  if (editorInterface.formFactor === "phone") {
+  const device = useDevice();
+  if (device.editor.isMobile) {
     return (
       <Footer>
         <CustomFooter

examples/with-script-in-browser/initialData.tsx

@@ -1,4 +1,4 @@
-import type { ExcalidrawElementSkeleton } from "@excalidraw/excalidraw/element/transform";
+import type { ExcalidrawElementSkeleton } from "@excalidraw/excalidraw/data/transform";
 import type { FileId } from "@excalidraw/excalidraw/element/types";
 
 const elements: ExcalidrawElementSkeleton[] = [

examples/with-script-in-browser/package.json

@@ -3,14 +3,14 @@
   "version": "1.0.0",
   "private": true,
   "dependencies": {
-    "@excalidraw/excalidraw": "*",
-    "browser-fs-access": "0.38.0",
     "react": "19.0.0",
-    "react-dom": "19.0.0"
+    "react-dom": "19.0.0",
+    "@excalidraw/excalidraw": "*",
+    "browser-fs-access": "0.29.1"
   },
   "devDependencies": {
-    "typescript": "^5",
-    "vite": "5.0.12"
+    "vite": "5.0.12",
+    "typescript": "^5"
   },
   "scripts": {
     "start": "vite",

examples/with-script-in-browser/utils.ts

@@ -4,6 +4,8 @@ import { unstable_batchedUpdates } from "react-dom";
 
 type FILE_EXTENSION = Exclude<keyof typeof MIME_TYPES, "binary">;
 
+const INPUT_CHANGE_INTERVAL_MS = 500;
+
 export type ResolvablePromise<T> = Promise<T> & {
   resolve: [T] extends [undefined] ? (value?: T) => void : (value: T) => void;
   reject: (error: Error) => void;
@@ -52,6 +54,40 @@ export const fileOpen = <M extends boolean | undefined = false>(opts: {
     extensions,
     mimeTypes,
     multiple: opts.multiple ?? false,
+    legacySetup: (resolve, reject, input) => {
+      const scheduleRejection = debounce(reject, INPUT_CHANGE_INTERVAL_MS);
+      const focusHandler = () => {
+        checkForFile();
+        document.addEventListener("keyup", scheduleRejection);
+        document.addEventListener("pointerup", scheduleRejection);
+        scheduleRejection();
+      };
+      const checkForFile = () => {
+        // this hack might not work when expecting multiple files
+        if (input.files?.length) {
+          const ret = opts.multiple ? [...input.files] : input.files[0];
+          resolve(ret as RetType);
+        }
+      };
+      requestAnimationFrame(() => {
+        window.addEventListener("focus", focusHandler);
+      });
+      const interval = window.setInterval(() => {
+        checkForFile();
+      }, INPUT_CHANGE_INTERVAL_MS);
+      return (rejectPromise) => {
+        clearInterval(interval);
+        scheduleRejection.cancel();
+        window.removeEventListener("focus", focusHandler);
+        document.removeEventListener("keyup", scheduleRejection);
+        document.removeEventListener("pointerup", scheduleRejection);
+        if (rejectPromise) {
+          // so that something is shown in console if we need to debug this
+          console.warn("Opening the file was canceled (legacy-fs).");
+          rejectPromise(new Error("Request Aborted"));
+        }
+      };
+    },
   }) as Promise<RetType>;
 };
 

excalidraw-app/App.tsx

@@ -4,9 +4,6 @@ import {
   TTDDialogTrigger,
   CaptureUpdateAction,
   reconcileElements,
-  useEditorInterface,
-  ExcalidrawAPIProvider,
-  useExcalidrawAPI,
 } from "@excalidraw/excalidraw";
 import { trackEvent } from "@excalidraw/excalidraw/analytics";
 import { getDefaultAppState } from "@excalidraw/excalidraw/appState";
@@ -36,6 +33,7 @@ import {
 import polyfill from "@excalidraw/excalidraw/polyfill";
 import { useCallback, useEffect, useRef, useState } from "react";
 import { loadFromBlob } from "@excalidraw/excalidraw/data/blob";
+import { useCallbackRefState } from "@excalidraw/excalidraw/hooks/useCallbackRefState";
 import { t } from "@excalidraw/excalidraw/i18n";
 
 import {
@@ -49,11 +47,7 @@ import {
   youtubeIcon,
 } from "@excalidraw/excalidraw/components/icons";
 import { isElementLink } from "@excalidraw/element";
-import {
-  bumpElementVersions,
-  restoreAppState,
-  restoreElements,
-} from "@excalidraw/excalidraw/data/restore";
+import { restore, restoreAppState } from "@excalidraw/excalidraw/data/restore";
 import { newElementWith } from "@excalidraw/element";
 import { isInitializedImageElement } from "@excalidraw/element";
 import clsx from "clsx";
@@ -75,7 +69,6 @@ import type {
   BinaryFiles,
   ExcalidrawInitialDataState,
   UIAppState,
-  ExcalidrawProps,
 } from "@excalidraw/excalidraw/types";
 import type { ResolutionType } from "@excalidraw/common/utility-types";
 import type { ResolvablePromise } from "@excalidraw/common/utils";
@@ -111,12 +104,11 @@ import { TopErrorBoundary } from "./components/TopErrorBoundary";
 import {
   exportToBackend,
   getCollaborationLinkData,
-  importFromBackend,
   isCollaborationLink,
+  loadScene,
 } from "./data";
 
 import { updateStaleImageStatuses } from "./data/FileManager";
-import { FileStatusStore } from "./data/fileStatusStore";
 import {
   importFromLocalStorage,
   importUsernameFromLocalStorage,
@@ -145,9 +137,6 @@ import { ExcalidrawPlusIframeExport } from "./ExcalidrawPlusIframeExport";
 
 import "./index.scss";
 
-import { ExcalidrawPlusPromoBanner } from "./components/ExcalidrawPlusPromoBanner";
-import { AppSidebar } from "./components/AppSidebar";
-
 import type { CollabAPI } from "./collab/Collab";
 
 polyfill();
@@ -231,20 +220,9 @@ const initializeScene = async (opts: {
 
   const localDataState = importFromLocalStorage();
 
-  let scene: Omit<
-    RestoredDataState,
-    // we're not storing files in the scene database/localStorage, and instead
-    // fetch them async from a different store
-    "files"
-  > & {
+  let scene: RestoredDataState & {
     scrollToContent?: boolean;
-  } = {
-    elements: restoreElements(localDataState?.elements, null, {
-      repairBindings: true,
-      deleteInvisibleElements: true,
-    }),
-    appState: restoreAppState(localDataState?.appState, null),
-  };
+  } = await loadScene(null, null, localDataState);
 
   let roomLinkData = getCollaborationLinkData(window.location.href);
   const isExternalScene = !!(id || jsonBackendMatch || roomLinkData);
@@ -258,26 +236,11 @@ const initializeScene = async (opts: {
       (await openConfirmModal(shareableLinkConfirmDialog))
     ) {
       if (jsonBackendMatch) {
-        const imported = await importFromBackend(
+        scene = await loadScene(
           jsonBackendMatch[1],
           jsonBackendMatch[2],
+          localDataState,
         );
-
-        scene = {
-          elements: bumpElementVersions(
-            restoreElements(imported.elements, null, {
-              repairBindings: true,
-              deleteInvisibleElements: true,
-            }),
-            localDataState?.elements,
-          ),
-          appState: restoreAppState(
-            imported.appState,
-            // local appState when importing from backend to ensure we restore
-            // localStorage user settings which we do not persist on server.
-            localDataState?.appState,
-          ),
-        };
       }
       scene.scrollToContent = true;
       if (!roomLinkData) {
@@ -372,8 +335,6 @@ const initializeScene = async (opts: {
 };
 
 const ExcalidrawWrapper = () => {
-  const excalidrawAPI = useExcalidrawAPI();
-
   const [errorMessage, setErrorMessage] = useState("");
   const isCollabDisabled = isRunningInIframe();
 
@@ -381,8 +342,6 @@ const ExcalidrawWrapper = () => {
 
   const [langCode, setLangCode] = useAppLangCode();
 
-  const editorInterface = useEditorInterface();
-
   // initial state
   // ---------------------------------------------------------------------------
 
@@ -404,6 +363,9 @@ const ExcalidrawWrapper = () => {
     }, VERSION_TIMEOUT);
   }, []);
 
+  const [excalidrawAPI, excalidrawRefCallback] =
+    useCallbackRefState<ExcalidrawImperativeAPI>();
+
   const [, setShareDialogState] = useAtom(shareDialogStateAtom);
   const [collabAPI] = useAtom(collabAPIAtom);
   const [isCollaborating] = useAtomWithInitialValue(isCollaboratingAtom, () => {
@@ -435,15 +397,18 @@ const ExcalidrawWrapper = () => {
     }
   }, [excalidrawAPI]);
 
-  // ---------------------------------------------------------------------------
-  // Hoisted loadImages
-  // ---------------------------------------------------------------------------
-  const loadImages = useCallback(
-    (data: ResolutionType<typeof initializeScene>, isInitialLoad = false) => {
-      if (!data.scene || !excalidrawAPI) {
+  useEffect(() => {
+    if (!excalidrawAPI || (!isCollabDisabled && !collabAPI)) {
+      return;
+    }
+
+    const loadImages = (
+      data: ResolutionType<typeof initializeScene>,
+      isInitialLoad = false,
+    ) => {
+      if (!data.scene) {
         return;
       }
-
       if (collabAPI?.isCollaborating()) {
         if (data.scene.elements) {
           collabAPI
@@ -470,12 +435,6 @@ const ExcalidrawWrapper = () => {
           }, [] as FileId[]) || [];
 
         if (data.isExternalScene) {
-          if (fileIds.length) {
-            // Direct Firebase call (not through FileManager), so track manually
-            FileStatusStore.updateStatuses(
-              fileIds.map((id) => [id, "loading"]),
-            );
-          }
           loadFilesFromFirebase(
             `${FIREBASE_STORAGE_PREFIXES.shareLinkFiles}/${data.id}`,
             data.key,
@@ -487,18 +446,12 @@ const ExcalidrawWrapper = () => {
               erroredFiles,
               elements: excalidrawAPI.getSceneElementsIncludingDeleted(),
             });
-            FileStatusStore.updateStatuses([
-              ...loadedFiles.map((f) => [f.id, "loaded"] as [FileId, "loaded"]),
-              ...[...erroredFiles.keys()].map(
-                (id) => [id, "error"] as [FileId, "error"],
-              ),
-            ]);
           });
         } else if (isInitialLoad) {
           if (fileIds.length) {
             LocalData.fileStorage
               .getFiles(fileIds)
-              .then(async ({ loadedFiles, erroredFiles }) => {
+              .then(({ loadedFiles, erroredFiles }) => {
                 if (loadedFiles.length) {
                   excalidrawAPI.addFiles(loadedFiles);
                 }
@@ -511,19 +464,10 @@ const ExcalidrawWrapper = () => {
           }
           // on fresh load, clear unused files from IDB (from previous
           // session)
-          LocalData.fileStorage.clearObsoleteFiles({
-            currentFileIds: fileIds,
-          });
+          LocalData.fileStorage.clearObsoleteFiles({ currentFileIds: fileIds });
         }
       }
-    },
-    [collabAPI, excalidrawAPI],
-  );
-
-  useEffect(() => {
-    if (!excalidrawAPI || (!isCollabDisabled && !collabAPI)) {
-      return;
-    }
+    };
 
     initializeScene({ collabAPI, excalidrawAPI }).then(async (data) => {
       loadImages(data, /* isInitialLoad */ true);
@@ -546,10 +490,8 @@ const ExcalidrawWrapper = () => {
           loadImages(data);
           if (data.scene) {
             excalidrawAPI.updateScene({
-              elements: restoreElements(data.scene.elements, null, {
-                repairBindings: true,
-              }),
-              appState: restoreAppState(data.scene.appState, null),
+              ...data.scene,
+              ...restore(data.scene, null, null, { repairBindings: true }),
               captureUpdate: CaptureUpdateAction.IMMEDIATELY,
             });
           }
@@ -648,7 +590,7 @@ const ExcalidrawWrapper = () => {
         false,
       );
     };
-  }, [isCollabDisabled, collabAPI, excalidrawAPI, setLangCode, loadImages]);
+  }, [isCollabDisabled, collabAPI, excalidrawAPI, setLangCode]);
 
   useEffect(() => {
     const unloadHandler = (event: BeforeUnloadEvent) => {
@@ -721,8 +663,8 @@ const ExcalidrawWrapper = () => {
       debugRenderer(
         debugCanvasRef.current,
         appState,
-        elements,
         window.devicePixelRatio,
+        () => forceRefresh((prev) => !prev),
       );
     }
   };
@@ -793,56 +735,6 @@ const ExcalidrawWrapper = () => {
     [setShareDialogState],
   );
 
-  // ---------------------------------------------------------------------------
-  // onExport — intercepts file save to wait for pending image loads
-  // ---------------------------------------------------------------------------
-  const onExport: Required<ExcalidrawProps>["onExport"] = useCallback(
-    async function* () {
-      let snapshot = FileStatusStore.getSnapshot();
-      const { pending, total } = FileStatusStore.getPendingCount(
-        snapshot.value,
-      );
-      if (pending === 0) {
-        return;
-      }
-
-      // Yield initial progress
-      yield {
-        type: "progress",
-        progress: (total - pending) / total,
-        message: `Loading images (${total - pending}/${total})...`,
-      };
-
-      // Wait for all pending images to finish
-      while (true) {
-        snapshot = await FileStatusStore.pull(snapshot.version);
-        const { pending: nowPending, total: nowTotal } =
-          FileStatusStore.getPendingCount(snapshot.value);
-
-        yield {
-          type: "progress",
-          progress: (nowTotal - nowPending) / nowTotal,
-          message: `Loading images (${nowTotal - nowPending}/${nowTotal})...`,
-        };
-
-        if (nowPending === 0) {
-          await new Promise((r) => setTimeout(r, 500));
-          yield {
-            type: "progress",
-            message: `Preparing export...`,
-          };
-          return;
-        }
-      }
-    },
-    [],
-  );
-
-  // const onExport = () => {
-  //   return new Promise((r) => setTimeout(r, 2500));
-  //   // console.log("onExport");
-  // };
-
   // browsers generally prevent infinite self-embedding, there are
   // cases where it still happens, and while we disallow self-embedding
   // by not whitelisting our own origin, this serves as an additional guard
@@ -909,8 +801,8 @@ const ExcalidrawWrapper = () => {
       })}
     >
       <Excalidraw
+        excalidrawAPI={excalidrawRefCallback}
         onChange={onChange}
-        onExport={onExport}
         initialData={initialStatePromiseRef.current.promise}
         isCollaborating={isCollaborating}
         onPointerUpdate={collabAPI?.onPointerUpdate}
@@ -956,22 +848,14 @@ const ExcalidrawWrapper = () => {
           if (isMobile || !collabAPI || isCollabDisabled) {
             return null;
           }
-
           return (
-            <div className="excalidraw-ui-top-right">
-              {excalidrawAPI?.getEditorInterface().formFactor === "desktop" && (
-                <ExcalidrawPlusPromoBanner
-                  isSignedIn={isExcalidrawPlusSignedUser}
-                />
-              )}
-
+            <div className="top-right-ui">
               {collabError.message && <CollabError collabError={collabError} />}
               <LiveCollaborationTrigger
                 isCollaborating={isCollaborating}
                 onSelect={() =>
                   setShareDialogState({ isOpen: true, type: "share" })
                 }
-                editorInterface={editorInterface}
               />
             </div>
           );
@@ -1057,8 +941,6 @@ const ExcalidrawWrapper = () => {
           }}
         />
 
-        <AppSidebar />
-
         {errorMessage && (
           <ErrorDialog onClose={() => setErrorMessage("")}>
             {errorMessage}
@@ -1261,6 +1143,7 @@ const ExcalidrawWrapper = () => {
             ref={debugCanvasRef}
           />
         )}
+        {/* <FreedrawDebugSliders /> */}
       </Excalidraw>
     </div>
   );
@@ -1276,9 +1159,7 @@ const ExcalidrawApp = () => {
   return (
     <TopErrorBoundary>
       <Provider store={appJotaiStore}>
-        <ExcalidrawAPIProvider>
-          <ExcalidrawWrapper />
-        </ExcalidrawAPIProvider>
+        <ExcalidrawWrapper />
       </Provider>
     </TopErrorBoundary>
   );

excalidraw-app/app_constants.ts

@@ -46,7 +46,6 @@ export const STORAGE_KEYS = {
   VERSION_FILES: "version-files",
 
   IDB_LIBRARY: "excalidraw-library",
-  IDB_TTD_CHATS: "excalidraw-ttd-chats",
 
   // do not use apart from migrations
   __LEGACY_LOCAL_STORAGE_LIBRARY: "excalidraw-library",

excalidraw-app/collab/Collab.tsx

@@ -6,7 +6,7 @@ import {
   reconcileElements,
 } from "@excalidraw/excalidraw";
 import { ErrorDialog } from "@excalidraw/excalidraw/components/ErrorDialog";
-import { APP_NAME, cloneJSON, EVENT, toBrandedType } from "@excalidraw/common";
+import { APP_NAME, EVENT } from "@excalidraw/common";
 import {
   IDLE_THRESHOLD,
   ACTIVE_THRESHOLD,
@@ -29,8 +29,6 @@ import { withBatchedUpdates } from "@excalidraw/excalidraw/reactUtils";
 import throttle from "lodash.throttle";
 import { PureComponent } from "react";
 
-import { bumpElementVersions } from "@excalidraw/excalidraw/data/restore";
-
 import type {
   ReconciledExcalidrawElement,
   RemoteExcalidrawElement,
@@ -72,7 +70,6 @@ import {
   FileManager,
   updateStaleImageStatuses,
 } from "../data/FileManager";
-import { FileStatusStore } from "../data/fileStatusStore";
 import { LocalData } from "../data/LocalData";
 import {
   isSavedToFirebase,
@@ -150,7 +147,6 @@ class Collab extends PureComponent<CollabProps, CollabState> {
     };
     this.portal = new Portal(this);
     this.fileManager = new FileManager({
-      onFileStatusChange: FileStatusStore.updateStatuses.bind(FileStatusStore),
       getFiles: async (fileIds) => {
         const { roomId, roomKey } = this.portal;
         if (!roomId || !roomKey) {
@@ -315,7 +311,6 @@ class Collab extends PureComponent<CollabProps, CollabState> {
   saveCollabRoomToFirebase = async (
     syncableElements: readonly SyncableExcalidrawElement[],
   ) => {
-    syncableElements = cloneJSON(syncableElements);
     try {
       const storedElements = await saveToFirebase(
         this.portal,
@@ -446,7 +441,7 @@ class Collab extends PureComponent<CollabProps, CollabState> {
   };
 
   private decryptPayload = async (
-    iv: Uint8Array<ArrayBuffer>,
+    iv: Uint8Array,
     encryptedData: ArrayBuffer,
     decryptionKey: string,
   ): Promise<ValueOf<SocketUpdateDataSource>> => {
@@ -567,7 +562,7 @@ class Collab extends PureComponent<CollabProps, CollabState> {
     // All socket listeners are moving to Portal
     this.portal.socket.on(
       "client-broadcast",
-      async (encryptedData: ArrayBuffer, iv: Uint8Array<ArrayBuffer>) => {
+      async (encryptedData: ArrayBuffer, iv: Uint8Array) => {
         if (!this.portal.roomKey) {
           return;
         }
@@ -584,9 +579,7 @@ class Collab extends PureComponent<CollabProps, CollabState> {
           case WS_SUBTYPES.INIT: {
             if (!this.portal.socketInitialized) {
               this.initializeRoom({ fetchScene: false });
-              const remoteElements = toBrandedType<
-                readonly RemoteExcalidrawElement[]
-              >(decryptedData.payload.elements);
+              const remoteElements = decryptedData.payload.elements;
               const reconciledElements =
                 this._reconcileElements(remoteElements);
               this.handleRemoteSceneUpdate(reconciledElements);
@@ -600,11 +593,7 @@ class Collab extends PureComponent<CollabProps, CollabState> {
           }
           case WS_SUBTYPES.UPDATE:
             this.handleRemoteSceneUpdate(
-              this._reconcileElements(
-                toBrandedType<readonly RemoteExcalidrawElement[]>(
-                  decryptedData.payload.elements,
-                ),
-              ),
+              this._reconcileElements(decryptedData.payload.elements),
             );
             break;
           case WS_SUBTYPES.MOUSE_LOCATION: {
@@ -753,28 +742,17 @@ class Collab extends PureComponent<CollabProps, CollabState> {
   };
 
   private _reconcileElements = (
-    remoteElements: readonly RemoteExcalidrawElement[],
+    remoteElements: readonly ExcalidrawElement[],
   ): ReconciledExcalidrawElement[] => {
+    const localElements = this.getSceneElementsIncludingDeleted();
     const appState = this.excalidrawAPI.getAppState();
-
-    const existingElements = this.getSceneElementsIncludingDeleted();
-
-    // NOTE ideally we restore _after_ reconciliation but we can't do that
-    // as we'd regenerate even elements such as appState.newElement which would
-    // break the state
-    remoteElements = restoreElements(remoteElements, existingElements);
-
-    let reconciledElements = reconcileElements(
-      existingElements,
-      remoteElements,
+    const restoredRemoteElements = restoreElements(remoteElements, null);
+    const reconciledElements = reconcileElements(
+      localElements,
+      restoredRemoteElements as RemoteExcalidrawElement[],
       appState,
     );
 
-    reconciledElements = bumpElementVersions(
-      reconciledElements,
-      existingElements,
-    );
-
     // Avoid broadcasting to the rest of the collaborators the scene
     // we just received!
     // Note: this needs to be set before updating the scene as it

excalidraw-app/components/AI.tsx

@@ -4,15 +4,12 @@ import {
   getTextFromElements,
   MIME_TYPES,
   TTDDialog,
-  TTDStreamFetch,
 } from "@excalidraw/excalidraw";
 import { getDataURL } from "@excalidraw/excalidraw/data/blob";
 import { safelyParseJSON } from "@excalidraw/common";
 
 import type { ExcalidrawImperativeAPI } from "@excalidraw/excalidraw/types";
 
-import { TTDIndexedDBAdapter } from "../data/TTDStorage";
-
 export const AIComponents = ({
   excalidrawAPI,
 }: {
@@ -102,23 +99,61 @@ export const AIComponents = ({
       />
 
       <TTDDialog
-        onTextSubmit={async (props) => {
-          const { onChunk, onStreamCreated, signal, messages } = props;
+        onTextSubmit={async (input) => {
+          try {
+            const response = await fetch(
+              `${
+                import.meta.env.VITE_APP_AI_BACKEND
+              }/v1/ai/text-to-diagram/generate`,
+              {
+                method: "POST",
+                headers: {
+                  Accept: "application/json",
+                  "Content-Type": "application/json",
+                },
+                body: JSON.stringify({ prompt: input }),
+              },
+            );
 
-          const result = await TTDStreamFetch({
-            url: `${
-              import.meta.env.VITE_APP_AI_BACKEND
-            }/v1/ai/text-to-diagram/chat-streaming`,
-            messages,
-            onChunk,
-            onStreamCreated,
-            extractRateLimits: true,
-            signal,
-          });
+            const rateLimit = response.headers.has("X-Ratelimit-Limit")
+              ? parseInt(response.headers.get("X-Ratelimit-Limit") || "0", 10)
+              : undefined;
 
-          return result;
+            const rateLimitRemaining = response.headers.has(
+              "X-Ratelimit-Remaining",
+            )
+              ? parseInt(
+                  response.headers.get("X-Ratelimit-Remaining") || "0",
+                  10,
+                )
+              : undefined;
+
+            const json = await response.json();
+
+            if (!response.ok) {
+              if (response.status === 429) {
+                return {
+                  rateLimit,
+                  rateLimitRemaining,
+                  error: new Error(
+                    "Too many requests today, please try again tomorrow!",
+                  ),
+                };
+              }
+
+              throw new Error(json.message || "Generation failed...");
+            }
+
+            const generatedResponse = json.generatedResponse;
+            if (!generatedResponse) {
+              throw new Error("Generation failed...");
+            }
+
+            return { generatedResponse, rateLimit, rateLimitRemaining };
+          } catch (err: any) {
+            throw new Error("Request failed");
+          }
         }}
-        persistenceAdapter={TTDIndexedDBAdapter}
       />
     </>
   );

excalidraw-app/components/AppFooter.tsx

@@ -5,6 +5,7 @@ import { isExcalidrawPlusSignedUser } from "../app_constants";
 
 import { DebugFooter, isVisualDebuggerEnabled } from "./DebugCanvas";
 import { EncryptedIcon } from "./EncryptedIcon";
+import { ExcalidrawPlusAppLink } from "./ExcalidrawPlusAppLink";
 
 export const AppFooter = React.memo(
   ({ onChange }: { onChange: () => void }) => {
@@ -18,7 +19,11 @@ export const AppFooter = React.memo(
           }}
         >
           {isVisualDebuggerEnabled() && <DebugFooter onChange={onChange} />}
-          {!isExcalidrawPlusSignedUser && <EncryptedIcon />}
+          {isExcalidrawPlusSignedUser ? (
+            <ExcalidrawPlusAppLink />
+          ) : (
+            <EncryptedIcon />
+          )}
         </div>
       </Footer>
     );

excalidraw-app/components/AppMainMenu.tsx

@@ -62,7 +62,7 @@ export const AppMainMenu: React.FC<{
       {isDevEnv() && (
         <MainMenu.Item
           icon={eyeIcon}
-          onSelect={() => {
+          onClick={() => {
             if (window.visualDebug) {
               delete window.visualDebug;
               saveDebugState({ enabled: false });
@@ -77,7 +77,6 @@ export const AppMainMenu: React.FC<{
         </MainMenu.Item>
       )}
       <MainMenu.Separator />
-      <MainMenu.DefaultItems.Preferences />
       <MainMenu.DefaultItems.ToggleTheme
         allowSystemTheme
         theme={props.theme}

excalidraw-app/components/AppSidebar.scss

@@ -1,36 +0,0 @@
-.excalidraw {
-  .app-sidebar-promo-container {
-    padding: 0.75rem;
-    display: flex;
-    flex-direction: column;
-    text-align: center;
-    gap: 1rem;
-    flex: 1 1 auto;
-  }
-
-  .app-sidebar-promo-image {
-    margin: 1rem 0;
-
-    height: 16.25rem;
-    background-size: contain;
-    background-position: center;
-    background-repeat: no-repeat;
-
-    background-image: radial-gradient(
-        circle,
-        transparent 60%,
-        var(--sidebar-bg-color) 100%
-      ),
-      var(--image-source);
-
-    display: flex;
-  }
-
-  .app-sidebar-promo-text {
-    padding: 0 2rem;
-  }
-
-  .link-button {
-    margin: 0 auto;
-  }
-}

excalidraw-app/components/AppSidebar.tsx

@@ -1,79 +0,0 @@
-import { DefaultSidebar, Sidebar, THEME } from "@excalidraw/excalidraw";
-import {
-  messageCircleIcon,
-  presentationIcon,
-} from "@excalidraw/excalidraw/components/icons";
-import { LinkButton } from "@excalidraw/excalidraw/components/LinkButton";
-import { useUIAppState } from "@excalidraw/excalidraw/context/ui-appState";
-
-import "./AppSidebar.scss";
-
-export const AppSidebar = () => {
-  const { theme, openSidebar } = useUIAppState();
-
-  return (
-    <DefaultSidebar>
-      <DefaultSidebar.TabTriggers>
-        <Sidebar.TabTrigger
-          tab="comments"
-          style={{ opacity: openSidebar?.tab === "comments" ? 1 : 0.4 }}
-        >
-          {messageCircleIcon}
-        </Sidebar.TabTrigger>
-        <Sidebar.TabTrigger
-          tab="presentation"
-          style={{ opacity: openSidebar?.tab === "presentation" ? 1 : 0.4 }}
-        >
-          {presentationIcon}
-        </Sidebar.TabTrigger>
-      </DefaultSidebar.TabTriggers>
-      <Sidebar.Tab tab="comments">
-        <div className="app-sidebar-promo-container">
-          <div
-            className="app-sidebar-promo-image"
-            style={{
-              ["--image-source" as any]: `url(/oss_promo_comments_${
-                theme === THEME.DARK ? "dark" : "light"
-              }.jpg)`,
-              opacity: 0.7,
-            }}
-          />
-          <div className="app-sidebar-promo-text">
-            Make comments with Excalidraw+
-          </div>
-          <LinkButton
-            href={`${
-              import.meta.env.VITE_APP_PLUS_LP
-            }/plus?utm_source=excalidraw&utm_medium=app&utm_content=comments_promo#excalidraw-redirect`}
-          >
-            Sign up now
-          </LinkButton>
-        </div>
-      </Sidebar.Tab>
-      <Sidebar.Tab tab="presentation" className="px-3">
-        <div className="app-sidebar-promo-container">
-          <div
-            className="app-sidebar-promo-image"
-            style={{
-              ["--image-source" as any]: `url(/oss_promo_presentations_${
-                theme === THEME.DARK ? "dark" : "light"
-              }.svg)`,
-              backgroundSize: "60%",
-              opacity: 0.4,
-            }}
-          />
-          <div className="app-sidebar-promo-text">
-            Create presentations with Excalidraw+
-          </div>
-          <LinkButton
-            href={`${
-              import.meta.env.VITE_APP_PLUS_LP
-            }/plus?utm_source=excalidraw&utm_medium=app&utm_content=presentations_promo#excalidraw-redirect`}
-          >
-            Sign up now
-          </LinkButton>
-        </div>
-      </Sidebar.Tab>
-    </DefaultSidebar>
-  );
-};

excalidraw-app/components/AppWelcomeScreen.tsx

@@ -33,15 +33,7 @@ export const AppWelcomeScreen: React.FC<{
         return bit;
       });
   } else {
-    headingContent = (
-      <>
-        {t("welcomeScreen.app.center_heading")}
-        <br />
-        {t("welcomeScreen.app.center_heading_line2")}
-        <br />
-        {t("welcomeScreen.app.center_heading_line3")}
-      </>
-    );
+    headingContent = t("welcomeScreen.app.center_heading");
   }
 
   return (

excalidraw-app/components/DebugCanvas.tsx

@@ -3,310 +3,29 @@ import {
   CloseIcon,
   TrashIcon,
 } from "@excalidraw/excalidraw/components/icons";
-import { useExcalidrawAPI } from "@excalidraw/excalidraw/index";
 import {
   bootstrapCanvas,
-  fillCircle,
   getNormalizedCanvasDimensions,
 } from "@excalidraw/excalidraw/renderer/helpers";
 import { type AppState } from "@excalidraw/excalidraw/types";
-import {
-  arrayToMap,
-  sceneCoordsToViewportCoords,
-  throttleRAF,
-  viewportCoordsToSceneCoords,
-} from "@excalidraw/common";
-import { useCallback, useEffect, useRef, useState } from "react";
-
-import {
-  CaptureUpdateAction,
-  clearSimpleArrowTangentOverride,
-  getGlobalFixedPointForBindableElement,
-  getElementAbsoluteCoords,
-  getSimpleArrowCurveDebugData,
-  isArrowElement,
-  isBindableElement,
-  setSimpleArrowTangentOverride,
-  ShapeCache,
-} from "@excalidraw/element";
+import { throttleRAF } from "@excalidraw/common";
+import { useCallback } from "react";
 
 import {
   isLineSegment,
-  pointFrom,
-  pointRotateRads,
   type GlobalPoint,
-  type LocalPoint,
   type LineSegment,
-  type Radians,
 } from "@excalidraw/math";
 import { isCurve } from "@excalidraw/math/curve";
 
 import React from "react";
 
 import type { Curve } from "@excalidraw/math";
-import type {
-  DebugElement,
-  DebugPolygon,
-} from "@excalidraw/element/visualdebug";
-import type {
-  ElementsMap,
-  ExcalidrawArrowElement,
-  ExcalidrawBindableElement,
-  FixedPointBinding,
-  Ordered,
-  OrderedExcalidrawElement,
-} from "@excalidraw/element/types";
-import type { SimpleArrowCurveDebugData } from "@excalidraw/element";
+
+import type { DebugElement } from "@excalidraw/utils/visualdebug";
 
 import { STORAGE_KEYS } from "../app_constants";
 
-type DebugCanvasOverlayState = Pick<
-  AppState,
-  | "width"
-  | "height"
-  | "zoom"
-  | "scrollX"
-  | "scrollY"
-  | "offsetLeft"
-  | "offsetTop"
-  | "selectedElementIds"
->;
-
-type SimpleArrowHandleDirection = "incoming" | "outgoing";
-
-type SimpleArrowHandleDescriptor = {
-  key: string;
-  elementId: string;
-  pointIndex: number;
-  direction: SimpleArrowHandleDirection;
-  point: GlobalPoint;
-  handle: GlobalPoint;
-  isOverridden: boolean;
-  title: string;
-};
-
-type SelectedSimpleArrowDebugState = {
-  element: ExcalidrawArrowElement;
-  debugData: SimpleArrowCurveDebugData<GlobalPoint>;
-  handles: SimpleArrowHandleDescriptor[];
-};
-
-const areSimpleArrowTangentHandlesEnabled = () =>
-  window.EXCALIDRAW_DEBUG_LINEAR_ARROW_TANGENTS !== false;
-
-const pickOverlayState = (appState: AppState): DebugCanvasOverlayState => ({
-  width: appState.width,
-  height: appState.height,
-  zoom: appState.zoom,
-  scrollX: appState.scrollX,
-  scrollY: appState.scrollY,
-  offsetLeft: appState.offsetLeft,
-  offsetTop: appState.offsetTop,
-  selectedElementIds: appState.selectedElementIds,
-});
-
-const getSimpleArrowTransform = (
-  element: ExcalidrawArrowElement,
-  elementsMap: ElementsMap,
-) => {
-  const [, , , , cx, cy] = getElementAbsoluteCoords(element, elementsMap);
-  const center = pointFrom<GlobalPoint>(cx, cy);
-
-  return {
-    pointToGlobal: (point: LocalPoint): GlobalPoint => {
-      const rotated = pointRotateRads(
-        pointFrom<GlobalPoint>(element.x + point[0], element.y + point[1]),
-        center,
-        element.angle,
-      );
-
-      return pointFrom<GlobalPoint>(rotated[0], rotated[1]);
-    },
-    vectorToGlobal: (vector: [number, number]): [number, number] => {
-      const rotated = pointRotateRads(
-        pointFrom<GlobalPoint>(vector[0], vector[1]),
-        pointFrom<GlobalPoint>(0, 0),
-        element.angle,
-      );
-
-      return [rotated[0], rotated[1]];
-    },
-    vectorToLocal: (vector: [number, number]): [number, number] => {
-      const rotated = pointRotateRads(
-        pointFrom<GlobalPoint>(vector[0], vector[1]),
-        pointFrom<GlobalPoint>(0, 0),
-        -element.angle as Radians,
-      );
-
-      return [rotated[0], rotated[1]];
-    },
-  };
-};
-
-const getSimpleArrowDebugStateForElement = (
-  elements: readonly OrderedExcalidrawElement[],
-  elementId: string,
-): SelectedSimpleArrowDebugState | null => {
-  const element = elements.find(
-    (candidate): candidate is Ordered<ExcalidrawArrowElement> =>
-      candidate.id === elementId &&
-      !candidate.isDeleted &&
-      isArrowElement(candidate) &&
-      !!candidate.roundness &&
-      !candidate.elbowed,
-  );
-
-  if (!element) {
-    return null;
-  }
-
-  const elementsMap = arrayToMap(elements);
-  const transform = getSimpleArrowTransform(element, elementsMap);
-  const localDebugData = getSimpleArrowCurveDebugData(element.points, 0.5, {
-    elementId: element.id,
-  });
-  const debugData: SimpleArrowCurveDebugData<GlobalPoint> = {
-    ...localDebugData,
-    tangents: localDebugData.tangents.map((tangent) => ({
-      ...tangent,
-      point: transform.pointToGlobal(tangent.point as LocalPoint),
-      base: transform.vectorToGlobal(tangent.base),
-      autoScaled: transform.vectorToGlobal(tangent.autoScaled),
-      scaled: transform.vectorToGlobal(tangent.scaled),
-    })),
-    segments: localDebugData.segments.map((segment) => ({
-      ...segment,
-      start: transform.pointToGlobal(segment.start as LocalPoint),
-      end: transform.pointToGlobal(segment.end as LocalPoint),
-      baseCp1: transform.pointToGlobal(segment.baseCp1 as LocalPoint),
-      baseCp2: transform.pointToGlobal(segment.baseCp2 as LocalPoint),
-      cp1: transform.pointToGlobal(segment.cp1 as LocalPoint),
-      cp2: transform.pointToGlobal(segment.cp2 as LocalPoint),
-    })),
-  };
-  const handles = debugData.tangents.flatMap((tangent, pointIndex) => {
-    const descriptors: SimpleArrowHandleDescriptor[] = [];
-    const lengthRatio =
-      tangent.normalized.finalLengthVsMinNeighbor === null
-        ? "n/a"
-        : tangent.normalized.finalLengthVsMinNeighbor.toFixed(3);
-    const angleDelta = tangent.normalized.angleDelta.toFixed(3);
-    const title = `point ${pointIndex} · len/min ${lengthRatio} · dAngle ${angleDelta} · dblclick resets`;
-
-    if (pointIndex < debugData.tangents.length - 1) {
-      descriptors.push({
-        key: `${element.id}:${pointIndex}:out`,
-        elementId: element.id,
-        pointIndex,
-        direction: "outgoing",
-        point: tangent.point,
-        handle: pointFrom<GlobalPoint>(
-          tangent.point[0] + tangent.scaled[0] / 3,
-          tangent.point[1] + tangent.scaled[1] / 3,
-        ),
-        isOverridden: tangent.isOverridden,
-        title,
-      });
-    }
-
-    if (pointIndex > 0) {
-      descriptors.push({
-        key: `${element.id}:${pointIndex}:in`,
-        elementId: element.id,
-        pointIndex,
-        direction: "incoming",
-        point: tangent.point,
-        handle: pointFrom<GlobalPoint>(
-          tangent.point[0] - tangent.scaled[0] / 3,
-          tangent.point[1] - tangent.scaled[1] / 3,
-        ),
-        isOverridden: tangent.isOverridden,
-        title,
-      });
-    }
-
-    return descriptors;
-  });
-
-  return {
-    element,
-    debugData,
-    handles,
-  };
-};
-
-const getSelectedSimpleArrowDebugState = (
-  elements: readonly OrderedExcalidrawElement[],
-  appState: Pick<AppState, "selectedElementIds">,
-) => {
-  const selectedIds = Object.keys(appState.selectedElementIds);
-
-  if (selectedIds.length !== 1) {
-    return null;
-  }
-
-  return getSimpleArrowDebugStateForElement(elements, selectedIds[0]);
-};
-
-const renderSelectedSimpleArrowTangentOverlay = (
-  context: CanvasRenderingContext2D,
-  zoom: number,
-  debugState: SelectedSimpleArrowDebugState,
-) => {
-  context.save();
-  context.lineWidth = 1;
-
-  context.setLineDash([6, 4]);
-  context.strokeStyle = "rgba(134, 142, 150, 0.75)";
-
-  for (const segment of debugState.debugData.segments) {
-    context.beginPath();
-    context.moveTo(segment.start[0] * zoom, segment.start[1] * zoom);
-    context.lineTo(segment.baseCp1[0] * zoom, segment.baseCp1[1] * zoom);
-    context.lineTo(segment.baseCp2[0] * zoom, segment.baseCp2[1] * zoom);
-    context.lineTo(segment.end[0] * zoom, segment.end[1] * zoom);
-    context.stroke();
-  }
-
-  context.setLineDash([]);
-
-  for (const segment of debugState.debugData.segments) {
-    context.strokeStyle = segment.overshootsBaseline
-      ? "rgba(245, 159, 0, 0.9)"
-      : "rgba(94, 90, 216, 0.85)";
-
-    context.beginPath();
-    context.moveTo(segment.start[0] * zoom, segment.start[1] * zoom);
-    context.lineTo(segment.cp1[0] * zoom, segment.cp1[1] * zoom);
-    context.lineTo(segment.cp2[0] * zoom, segment.cp2[1] * zoom);
-    context.lineTo(segment.end[0] * zoom, segment.end[1] * zoom);
-    context.stroke();
-  }
-
-  for (const tangent of debugState.debugData.tangents) {
-    if (!tangent.isAdjusted) {
-      continue;
-    }
-
-    context.strokeStyle = tangent.isOverridden
-      ? "rgba(230, 73, 128, 0.95)"
-      : "rgba(201, 42, 42, 0.85)";
-    context.fillStyle = tangent.isOverridden
-      ? "rgba(230, 73, 128, 0.95)"
-      : "rgba(201, 42, 42, 0.95)";
-
-    fillCircle(
-      context,
-      tangent.point[0] * zoom,
-      tangent.point[1] * zoom,
-      3,
-      true,
-    );
-  }
-
-  context.restore();
-};
-
 const renderLine = (
   context: CanvasRenderingContext2D,
   zoom: number,
@@ -344,44 +63,6 @@ const renderCubicBezier = (
   context.restore();
 };
 
-const renderPolygon = (
-  context: CanvasRenderingContext2D,
-  zoom: number,
-  polygon: DebugPolygon,
-  color: string,
-) => {
-  const { points, fill, close } = polygon;
-
-  if (points.length < 2) {
-    return;
-  }
-
-  context.save();
-  context.beginPath();
-  context.moveTo(points[0][0] * zoom, points[0][1] * zoom);
-  for (let i = 1; i < points.length; i += 1) {
-    context.lineTo(points[i][0] * zoom, points[i][1] * zoom);
-  }
-  if (close !== false) {
-    context.closePath();
-  }
-
-  if (fill) {
-    context.save();
-    context.globalAlpha = 0.15;
-    context.fillStyle = color;
-    context.fill();
-    context.restore();
-  }
-
-  context.strokeStyle = color;
-  context.stroke();
-  context.restore();
-};
-
-const isDebugPolygon = (data: DebugElement["data"]): data is DebugPolygon =>
-  (data as DebugPolygon).type === "polygon";
-
 const renderOrigin = (context: CanvasRenderingContext2D, zoom: number) => {
   context.strokeStyle = "#888";
   context.save();
@@ -394,176 +75,6 @@ const renderOrigin = (context: CanvasRenderingContext2D, zoom: number) => {
   context.save();
 };
 
-const _renderBinding = (
-  context: CanvasRenderingContext2D,
-  binding: FixedPointBinding,
-  elementsMap: ElementsMap,
-  zoom: number,
-  width: number,
-  height: number,
-  color: string,
-) => {
-  if (!binding.fixedPoint) {
-    console.warn("Binding must have a fixedPoint");
-    return;
-  }
-
-  const bindable = elementsMap.get(
-    binding.elementId,
-  ) as ExcalidrawBindableElement;
-  const [x, y] = getGlobalFixedPointForBindableElement(
-    binding.fixedPoint,
-    bindable,
-    elementsMap,
-  );
-
-  context.save();
-  context.strokeStyle = color;
-  context.lineWidth = 1;
-  context.beginPath();
-  context.moveTo(x * zoom, y * zoom);
-  context.bezierCurveTo(
-    x * zoom - width,
-    y * zoom - height,
-    x * zoom - width,
-    y * zoom + height,
-    x * zoom,
-    y * zoom,
-  );
-  context.stroke();
-  context.restore();
-};
-
-const _renderBindableBinding = (
-  binding: FixedPointBinding,
-  context: CanvasRenderingContext2D,
-  elementsMap: ElementsMap,
-  zoom: number,
-  width: number,
-  height: number,
-  color: string,
-) => {
-  const bindable = elementsMap.get(
-    binding.elementId,
-  ) as ExcalidrawBindableElement;
-  if (!binding.fixedPoint) {
-    console.warn("Binding must have a fixedPoint");
-    return;
-  }
-
-  const [x, y] = getGlobalFixedPointForBindableElement(
-    binding.fixedPoint,
-    bindable,
-    elementsMap,
-  );
-
-  context.save();
-  context.strokeStyle = color;
-  context.lineWidth = 1;
-  context.beginPath();
-  context.moveTo(x * zoom, y * zoom);
-  context.bezierCurveTo(
-    x * zoom + width,
-    y * zoom + height,
-    x * zoom + width,
-    y * zoom - height,
-    x * zoom,
-    y * zoom,
-  );
-  context.stroke();
-  context.restore();
-};
-
-const renderBindings = (
-  context: CanvasRenderingContext2D,
-  elements: readonly OrderedExcalidrawElement[],
-  zoom: number,
-) => {
-  const elementsMap = arrayToMap(elements);
-  const dim = 16;
-  elements.forEach((element) => {
-    if (element.isDeleted) {
-      return;
-    }
-
-    if (isArrowElement(element)) {
-      if (element.startBinding) {
-        if (
-          !elementsMap
-            .get(element.startBinding.elementId)
-            ?.boundElements?.find((e) => e.id === element.id)
-        ) {
-          return;
-        }
-
-        _renderBinding(
-          context,
-          element.startBinding,
-          elementsMap,
-          zoom,
-          dim,
-          dim,
-          element.startBinding?.mode === "orbit" ? "red" : "black",
-        );
-      }
-
-      if (element.endBinding) {
-        if (
-          !elementsMap
-            .get(element.endBinding.elementId)
-            ?.boundElements?.find((e) => e.id === element.id)
-        ) {
-          return;
-        }
-        _renderBinding(
-          context,
-          element.endBinding,
-          elementsMap,
-          zoom,
-          dim,
-          dim,
-          element.endBinding?.mode === "orbit" ? "red" : "black",
-        );
-      }
-    }
-
-    if (isBindableElement(element) && element.boundElements?.length) {
-      element.boundElements.forEach((boundElement) => {
-        if (boundElement.type !== "arrow") {
-          return;
-        }
-
-        const arrow = elementsMap.get(
-          boundElement.id,
-        ) as ExcalidrawArrowElement;
-
-        if (arrow && arrow.startBinding?.elementId === element.id) {
-          _renderBindableBinding(
-            arrow.startBinding,
-            context,
-            elementsMap,
-            zoom,
-            dim,
-            dim,
-            "green",
-          );
-        }
-        if (arrow && arrow.endBinding?.elementId === element.id) {
-          _renderBindableBinding(
-            arrow.endBinding,
-            context,
-            elementsMap,
-            zoom,
-            dim,
-            dim,
-            "green",
-          );
-        }
-      });
-    }
-  });
-};
-
 const render = (
   frame: DebugElement[],
   context: CanvasRenderingContext2D,
@@ -587,9 +98,6 @@ const render = (
           el.color,
         );
         break;
-      case isDebugPolygon(el.data):
-        renderPolygon(context, appState.zoom.value, el.data, el.color);
-        break;
       default:
         throw new Error(`Unknown element type ${JSON.stringify(el)}`);
     }
@@ -599,8 +107,8 @@ const render = (
 const _debugRenderer = (
   canvas: HTMLCanvasElement,
   appState: AppState,
-  elements: readonly OrderedExcalidrawElement[],
   scale: number,
+  refresh: () => void,
 ) => {
   const [normalizedWidth, normalizedHeight] = getNormalizedCanvasDimensions(
     canvas,
@@ -623,14 +131,6 @@ const _debugRenderer = (
   );
 
   renderOrigin(context, appState.zoom.value);
-  renderBindings(context, elements, appState.zoom.value);
-
-  const selectedSimpleArrowDebugState = areSimpleArrowTangentHandlesEnabled()
-    ? getSelectedSimpleArrowDebugState(elements, appState)
-    : null;
-
-  window.EXCALIDRAW_DEBUG_SELECTED_LINEAR_ARROW =
-    selectedSimpleArrowDebugState?.debugData;
 
   if (
     window.visualDebug?.currentFrame &&
@@ -648,14 +148,6 @@ const _debugRenderer = (
     });
   }
 
-  if (selectedSimpleArrowDebugState) {
-    renderSelectedSimpleArrowTangentOverlay(
-      context,
-      appState.zoom.value,
-      selectedSimpleArrowDebugState,
-    );
-  }
-
   if (window.visualDebug) {
     window.visualDebug!.data =
       window.visualDebug?.data.map((frame) =>
@@ -690,11 +182,12 @@ export const debugRenderer = throttleRAF(
   (
     canvas: HTMLCanvasElement,
     appState: AppState,
-    elements: readonly OrderedExcalidrawElement[],
     scale: number,
+    refresh: () => void,
   ) => {
-    _debugRenderer(canvas, appState, elements, scale);
+    _debugRenderer(canvas, appState, scale, refresh);
   },
+  { trailing: true },
 );
 
 export const loadSavedDebugState = () => {
@@ -823,324 +316,23 @@ interface DebugCanvasProps {
 
 const DebugCanvas = React.forwardRef<HTMLCanvasElement, DebugCanvasProps>(
   ({ appState, scale }, ref) => {
-    const excalidrawAPI = useExcalidrawAPI();
-    const [overlayState, setOverlayState] = useState<DebugCanvasOverlayState>(
-      () => pickOverlayState(appState),
-    );
-    const [selectedSimpleArrowDebugState, setSelectedSimpleArrowDebugState] =
-      useState<SelectedSimpleArrowDebugState | null>(null);
-    const dragStateRef = useRef<{
-      elementId: string;
-      pointIndex: number;
-      direction: SimpleArrowHandleDirection;
-    } | null>(null);
-
-    const syncSelectedSimpleArrowDebugState = useCallback(
-      (
-        nextAppState: AppState,
-        nextElements?: readonly OrderedExcalidrawElement[],
-      ) => {
-        if (!excalidrawAPI || excalidrawAPI.isDestroyed) {
-          return;
-        }
-
-        const elements =
-          nextElements ??
-          (excalidrawAPI.getSceneElements() as OrderedExcalidrawElement[]);
-
-        setOverlayState(pickOverlayState(nextAppState));
-
-        const nextDebugState = areSimpleArrowTangentHandlesEnabled()
-          ? getSelectedSimpleArrowDebugState(elements, nextAppState)
-          : null;
-
-        window.EXCALIDRAW_DEBUG_SELECTED_LINEAR_ARROW =
-          nextDebugState?.debugData;
-        setSelectedSimpleArrowDebugState(nextDebugState);
-      },
-      [excalidrawAPI],
-    );
-
-    useEffect(() => {
-      if (!excalidrawAPI || excalidrawAPI.isDestroyed) {
-        return;
-      }
-
-      syncSelectedSimpleArrowDebugState(excalidrawAPI.getAppState());
-
-      const unsubscribeChange = excalidrawAPI.onChange(
-        (elements, nextAppState) =>
-          syncSelectedSimpleArrowDebugState(
-            nextAppState,
-            elements as readonly OrderedExcalidrawElement[],
-          ),
-      );
-      const unsubscribeState = excalidrawAPI.onStateChange(
-        [
-          "selectedElementIds",
-          "zoom",
-          "scrollX",
-          "scrollY",
-          "offsetLeft",
-          "offsetTop",
-          "width",
-          "height",
-        ],
-        (_value, nextAppState) =>
-          syncSelectedSimpleArrowDebugState(nextAppState),
-      );
-
-      return () => {
-        unsubscribeChange();
-        unsubscribeState();
-      };
-    }, [excalidrawAPI, syncSelectedSimpleArrowDebugState]);
-
-    const rerenderSceneForSimpleArrowOverride = useCallback(() => {
-      if (!excalidrawAPI || excalidrawAPI.isDestroyed) {
-        return;
-      }
-
-      excalidrawAPI.updateScene({
-        elements: excalidrawAPI.getSceneElementsIncludingDeleted(),
-        captureUpdate: CaptureUpdateAction.NEVER,
-      });
-    }, [excalidrawAPI]);
-
-    const commitOverrideForHandle = useCallback(
-      (
-        handle: Pick<
-          SimpleArrowHandleDescriptor,
-          "elementId" | "pointIndex" | "direction"
-        >,
-        clientX: number,
-        clientY: number,
-      ) => {
-        if (!excalidrawAPI || excalidrawAPI.isDestroyed) {
-          return;
-        }
-
-        const nextAppState = excalidrawAPI.getAppState();
-        const nextElements =
-          excalidrawAPI.getSceneElements() as OrderedExcalidrawElement[];
-        const debugState = getSimpleArrowDebugStateForElement(
-          nextElements,
-          handle.elementId,
-        );
-
-        if (!debugState) {
-          return;
-        }
-
-        const scenePoint = viewportCoordsToSceneCoords(
-          { clientX, clientY },
-          nextAppState,
-        );
-        const tangent =
-          handle.direction === "outgoing"
-            ? ([
-                (scenePoint.x -
-                  debugState.debugData.tangents[handle.pointIndex].point[0]) *
-                  3,
-                (scenePoint.y -
-                  debugState.debugData.tangents[handle.pointIndex].point[1]) *
-                  3,
-              ] as [number, number])
-            : ([
-                (debugState.debugData.tangents[handle.pointIndex].point[0] -
-                  scenePoint.x) *
-                  3,
-                (debugState.debugData.tangents[handle.pointIndex].point[1] -
-                  scenePoint.y) *
-                  3,
-              ] as [number, number]);
-        const localTangent = getSimpleArrowTransform(
-          debugState.element,
-          arrayToMap(nextElements),
-        ).vectorToLocal(tangent);
-
-        setSimpleArrowTangentOverride(
-          debugState.element.id,
-          handle.pointIndex,
-          localTangent,
-        );
-        ShapeCache.delete(debugState.element);
-        rerenderSceneForSimpleArrowOverride();
-        syncSelectedSimpleArrowDebugState(nextAppState, nextElements);
-      },
-      [
-        excalidrawAPI,
-        rerenderSceneForSimpleArrowOverride,
-        syncSelectedSimpleArrowDebugState,
-      ],
-    );
-
-    const onPointerMove = useCallback(
-      (event: PointerEvent) => {
-        if (!dragStateRef.current) {
-          return;
-        }
-
-        event.preventDefault();
-        commitOverrideForHandle(
-          dragStateRef.current,
-          event.clientX,
-          event.clientY,
-        );
-      },
-      [commitOverrideForHandle],
-    );
-
-    const onPointerUp = useCallback(
-      (event: PointerEvent) => {
-        if (!dragStateRef.current) {
-          return;
-        }
-
-        event.preventDefault();
-        dragStateRef.current = null;
-        window.removeEventListener("pointermove", onPointerMove);
-        window.removeEventListener("pointerup", onPointerUp);
-        window.removeEventListener("pointercancel", onPointerUp);
-      },
-      [onPointerMove],
-    );
-
-    useEffect(() => {
-      return () => {
-        dragStateRef.current = null;
-        window.removeEventListener("pointermove", onPointerMove);
-        window.removeEventListener("pointerup", onPointerUp);
-        window.removeEventListener("pointercancel", onPointerUp);
-      };
-    }, [onPointerMove, onPointerUp]);
-
-    const handlePointerDown = useCallback(
-      (
-        handle: SimpleArrowHandleDescriptor,
-        event: React.PointerEvent<HTMLDivElement>,
-      ) => {
-        event.preventDefault();
-        event.stopPropagation();
-
-        dragStateRef.current = {
-          elementId: handle.elementId,
-          pointIndex: handle.pointIndex,
-          direction: handle.direction,
-        };
-
-        window.addEventListener("pointermove", onPointerMove, {
-          passive: false,
-        });
-        window.addEventListener("pointerup", onPointerUp, {
-          passive: false,
-        });
-        window.addEventListener("pointercancel", onPointerUp, {
-          passive: false,
-        });
-
-        commitOverrideForHandle(handle, event.clientX, event.clientY);
-      },
-      [commitOverrideForHandle, onPointerMove, onPointerUp],
-    );
-
-    const resetHandleOverride = useCallback(
-      (
-        handle: SimpleArrowHandleDescriptor,
-        event: React.MouseEvent<HTMLDivElement>,
-      ) => {
-        event.preventDefault();
-        event.stopPropagation();
-
-        if (!excalidrawAPI || excalidrawAPI.isDestroyed) {
-          return;
-        }
-
-        clearSimpleArrowTangentOverride(handle.elementId, handle.pointIndex);
-
-        const nextElements =
-          excalidrawAPI.getSceneElements() as OrderedExcalidrawElement[];
-        const element = nextElements.find(
-          (candidate): candidate is Ordered<ExcalidrawArrowElement> =>
-            candidate.id === handle.elementId &&
-            !candidate.isDeleted &&
-            isArrowElement(candidate),
-        );
-
-        if (element) {
-          ShapeCache.delete(element);
-          rerenderSceneForSimpleArrowOverride();
-        }
-
-        syncSelectedSimpleArrowDebugState(
-          excalidrawAPI.getAppState(),
-          nextElements,
-        );
-      },
-      [
-        excalidrawAPI,
-        rerenderSceneForSimpleArrowOverride,
-        syncSelectedSimpleArrowDebugState,
-      ],
-    );
-
-    const { width, height } = overlayState;
+    const { width, height } = appState;
 
     return (
-      <>
-        <canvas
-          style={{
-            width,
-            height,
-            position: "absolute",
-            inset: 0,
-            zIndex: 2,
-            pointerEvents: "none",
-          }}
-          width={width * scale}
-          height={height * scale}
-          ref={ref}
-        >
-          Debug Canvas
-        </canvas>
-        {selectedSimpleArrowDebugState?.handles.map((handle) => {
-          const { x, y } = sceneCoordsToViewportCoords(
-            {
-              sceneX: handle.handle[0],
-              sceneY: handle.handle[1],
-            },
-            overlayState,
-          );
-
-          return (
-            <div
-              key={handle.key}
-              title={handle.title}
-              onPointerDown={(event) => handlePointerDown(handle, event)}
-              onDoubleClick={(event) => resetHandleOverride(handle, event)}
-              style={{
-                position: "absolute",
-                left: x - overlayState.offsetLeft,
-                top: y - overlayState.offsetTop,
-                width: 12,
-                height: 12,
-                zIndex: 3,
-                borderRadius: handle.direction === "outgoing" ? "999px" : 3,
-                transform: "translate(-50%, -50%)",
-                background: handle.isOverridden
-                  ? "rgba(230, 73, 128, 0.95)"
-                  : handle.direction === "outgoing"
-                  ? "rgba(94, 90, 216, 0.95)"
-                  : "rgba(245, 159, 0, 0.95)",
-                border: "2px solid rgba(255,255,255,0.95)",
-                boxShadow: "0 0 0 1px rgba(0, 0, 0, 0.18)",
-                pointerEvents: "auto",
-                cursor: "grab",
-              }}
-            />
-          );
-        })}
-      </>
+      <canvas
+        style={{
+          width,
+          height,
+          position: "absolute",
+          zIndex: 2,
+          pointerEvents: "none",
+        }}
+        width={width * scale}
+        height={height * scale}
+        ref={ref}
+      >
+        Debug Canvas
+      </canvas>
     );
   },
 );

excalidraw-app/components/ExcalidrawPlusAppLink.tsx

@@ -0,0 +1,19 @@
+import { isExcalidrawPlusSignedUser } from "../app_constants";
+
+export const ExcalidrawPlusAppLink = () => {
+  if (!isExcalidrawPlusSignedUser) {
+    return null;
+  }
+  return (
+    <a
+      href={`${
+        import.meta.env.VITE_APP_PLUS_APP
+      }?utm_source=excalidraw&utm_medium=app&utm_content=signedInUserRedirectButton#excalidraw-redirect`}
+      target="_blank"
+      rel="noopener"
+      className="plus-button"
+    >
+      Go to Excalidraw+
+    </a>
+  );
+};

excalidraw-app/components/ExcalidrawPlusPromoBanner.tsx

@@ -1,22 +0,0 @@
-export const ExcalidrawPlusPromoBanner = ({
-  isSignedIn,
-}: {
-  isSignedIn: boolean;
-}) => {
-  return (
-    <a
-      href={
-        isSignedIn
-          ? import.meta.env.VITE_APP_PLUS_APP
-          : `${
-              import.meta.env.VITE_APP_PLUS_LP
-            }/plus?utm_source=excalidraw&utm_medium=app&utm_content=guestBanner#excalidraw-redirect`
-      }
-      target="_blank"
-      rel="noopener"
-      className="plus-banner"
-    >
-      Excalidraw+
-    </a>
-  );
-};

excalidraw-app/components/FreedrawDebugSliders.tsx

@@ -0,0 +1,150 @@
+import { STROKE_OPTIONS, isFreeDrawElement } from "@excalidraw/element";
+import { useState, useEffect } from "react";
+
+import { useUIAppState } from "@excalidraw/excalidraw/context/ui-appState";
+import { useExcalidrawElements } from "@excalidraw/excalidraw/components/App";
+
+import { round } from "../../packages/math/src";
+
+export const FreedrawDebugSliders = () => {
+  const [streamline, setStreamline] = useState<number>(
+    STROKE_OPTIONS.default.streamline,
+  );
+  const [simplify, setSimplify] = useState<number>(
+    STROKE_OPTIONS.default.simplify,
+  );
+
+  useEffect(() => {
+    if (!window.h) {
+      window.h = {} as any;
+    }
+    if (!window.h.debugFreedraw) {
+      window.h.debugFreedraw = {
+        enabled: true,
+        ...STROKE_OPTIONS.default,
+      };
+    }
+
+    setStreamline(window.h.debugFreedraw.streamline);
+    setSimplify(window.h.debugFreedraw.simplify);
+  }, []);
+
+  const handleStreamlineChange = (value: number) => {
+    setStreamline(value);
+    if (window.h && window.h.debugFreedraw) {
+      window.h.debugFreedraw.streamline = value;
+    }
+  };
+
+  const handleSimplifyChange = (value: number) => {
+    setSimplify(value);
+    if (window.h && window.h.debugFreedraw) {
+      window.h.debugFreedraw.simplify = value;
+    }
+  };
+
+  const [enabled, setEnabled] = useState<boolean>(
+    window.h?.debugFreedraw?.enabled ?? true,
+  );
+
+  // counter incrasing each 50ms
+  const [, setCounter] = useState<number>(0);
+  useEffect(() => {
+    const interval = setInterval(() => {
+      setCounter((prev) => prev + 1);
+    }, 50);
+
+    return () => clearInterval(interval);
+  }, []);
+
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  const elements = useExcalidrawElements();
+  const appState = useUIAppState();
+
+  const newFreedrawElement =
+    appState.newElement && isFreeDrawElement(appState.newElement)
+      ? appState.newElement
+      : null;
+
+  return (
+    <div
+      style={{
+        position: "absolute",
+        bottom: "70px",
+        left: "50%",
+        transform: "translateX(-50%)",
+        zIndex: 9999,
+        padding: "10px",
+        borderRadius: "8px",
+        border: "1px solid #ccc",
+        display: "flex",
+        flexDirection: "column",
+        gap: "8px",
+        fontSize: "12px",
+        fontFamily: "monospace",
+      }}
+    >
+      {newFreedrawElement && (
+        <div>
+          pressures:{" "}
+          {newFreedrawElement.simulatePressure
+            ? "simulated"
+            : JSON.stringify(
+                newFreedrawElement.pressures
+                  .slice(-4)
+                  .map((x) => round(x, 2))
+                  .join(" ") || [],
+              )}{" "}
+          ({round(window.__lastPressure__ || 0, 2) || "?"})
+        </div>
+      )}
+      <div>
+        <label>
+          {" "}
+          enabled
+          <br />
+          <input
+            type="checkbox"
+            checked={enabled}
+            onChange={(e) => {
+              if (window.h.debugFreedraw) {
+                window.h.debugFreedraw.enabled = e.target.checked;
+                setEnabled(e.target.checked);
+              }
+            }}
+          />
+        </label>
+      </div>
+      <div>
+        <label>
+          Streamline: {streamline.toFixed(2)}
+          <br />
+          <input
+            type="range"
+            min="0"
+            max="1"
+            step="0.01"
+            value={streamline}
+            onChange={(e) => handleStreamlineChange(parseFloat(e.target.value))}
+            style={{ width: "150px" }}
+          />
+        </label>
+      </div>
+      <div>
+        <label>
+          Simplify: {simplify.toFixed(2)}
+          <br />
+          <input
+            type="range"
+            min="0"
+            max="1"
+            step="0.01"
+            value={simplify}
+            onChange={(e) => handleSimplifyChange(parseFloat(e.target.value))}
+            style={{ width: "150px" }}
+          />
+        </label>
+      </div>
+    </div>
+  );
+};

excalidraw-app/components/GitHubCorner.tsx

@@ -0,0 +1,46 @@
+import { THEME } from "@excalidraw/common";
+import oc from "open-color";
+import React from "react";
+
+import type { Theme } from "@excalidraw/element/types";
+
+// https://github.com/tholman/github-corners
+export const GitHubCorner = React.memo(
+  ({ theme, dir }: { theme: Theme; dir: string }) => (
+    <svg
+      xmlns="http://www.w3.org/2000/svg"
+      width="40"
+      height="40"
+      viewBox="0 0 250 250"
+      className="rtl-mirror"
+      style={{
+        marginTop: "calc(var(--space-factor) * -1)",
+        [dir === "rtl" ? "marginLeft" : "marginRight"]:
+          "calc(var(--space-factor) * -1)",
+      }}
+    >
+      <a
+        href="https://github.com/excalidraw/excalidraw"
+        target="_blank"
+        rel="noopener noreferrer"
+        aria-label="GitHub repository"
+      >
+        <path
+          d="M0 0l115 115h15l12 27 108 108V0z"
+          fill={theme === THEME.LIGHT ? oc.gray[6] : oc.gray[7]}
+        />
+        <path
+          className="octo-arm"
+          d="M128 109c-15-9-9-19-9-19 3-7 2-11 2-11-1-7 3-2 3-2 4 5 2 11 2 11-3 10 5 15 9 16"
+          style={{ transformOrigin: "130px 106px" }}
+          fill={theme === THEME.LIGHT ? oc.white : "var(--default-bg-color)"}
+        />
+        <path
+          className="octo-body"
+          d="M115 115s4 2 5 0l14-14c3-2 6-3 8-3-8-11-15-24 2-41 5-5 10-7 16-7 1-2 3-7 12-11 0 0 5 3 7 16 4 2 8 5 12 9s7 8 9 12c14 3 17 7 17 7-4 8-9 11-11 11 0 6-2 11-7 16-16 16-30 10-41 2 0 3-1 7-5 11l-12 11c-1 1 1 5 1 5z"
+          fill={theme === THEME.LIGHT ? oc.white : "var(--default-bg-color)"}
+        />
+      </a>
+    </svg>
+  ),
+);

excalidraw-app/data/FileManager.ts

@@ -40,12 +40,10 @@ export class FileManager {
 
   private _getFiles;
   private _saveFiles;
-  private _onFileStatusChange;
 
   constructor({
     getFiles,
     saveFiles,
-    onFileStatusChange,
   }: {
     getFiles: (fileIds: FileId[]) => Promise<{
       loadedFiles: BinaryFileData[];
@@ -55,13 +53,9 @@ export class FileManager {
       savedFiles: Map<FileId, BinaryFileData>;
       erroredFiles: Map<FileId, BinaryFileData>;
     }>;
-    onFileStatusChange?: (
-      updates: Array<[FileId, "loading" | "loaded" | "error"]>,
-    ) => void;
   }) {
     this._getFiles = getFiles;
     this._saveFiles = saveFiles;
-    this._onFileStatusChange = onFileStatusChange;
   }
 
   /**
@@ -152,8 +146,6 @@ export class FileManager {
       this.fetchingFiles.set(id, true);
     }
 
-    this._onFileStatusChange?.(ids.map((id) => [id, "loading"]));
-
     try {
       const { loadedFiles, erroredFiles } = await this._getFiles(ids);
 
@@ -164,13 +156,6 @@ export class FileManager {
         this.erroredFiles_fetch.set(fileId, true);
       }
 
-      this._onFileStatusChange?.([
-        ...loadedFiles.map((f) => [f.id, "loaded"] as [FileId, "loaded"]),
-        ...[...erroredFiles.keys()].map(
-          (id) => [id, "error"] as [FileId, "error"],
-        ),
-      ]);
-
       return { loadedFiles, erroredFiles };
     } finally {
       for (const id of ids) {
@@ -210,13 +195,6 @@ export class FileManager {
   };
 
   reset() {
-    if (this._onFileStatusChange && this.fetchingFiles.size) {
-      this._onFileStatusChange(
-        [...this.fetchingFiles.keys()].map(
-          (id) => [id, "error"] as [FileId, "error"],
-        ),
-      );
-    }
     this.fetchingFiles.clear();
     this.savingFiles.clear();
     this.savedFiles.clear();

excalidraw-app/data/LocalData.ts

@@ -16,6 +16,7 @@ import {
   DEFAULT_SIDEBAR,
   debounce,
 } from "@excalidraw/common";
+import { clearElementsForLocalStorage } from "@excalidraw/element";
 import {
   createStore,
   entries,
@@ -27,7 +28,6 @@ import {
 } from "idb-keyval";
 
 import { appJotaiStore, atom } from "excalidraw-app/app-jotai";
-import { getNonDeletedElements } from "@excalidraw/element";
 
 import type { LibraryPersistedData } from "@excalidraw/excalidraw/data/library";
 import type { ImportedDataState } from "@excalidraw/excalidraw/data/types";
@@ -42,7 +42,6 @@ import type { MaybePromise } from "@excalidraw/common/utility-types";
 import { SAVE_TO_LOCAL_STORAGE_TIMEOUT, STORAGE_KEYS } from "../app_constants";
 
 import { FileManager } from "./FileManager";
-import { FileStatusStore } from "./fileStatusStore";
 import { Locker } from "./Locker";
 import { updateBrowserStateVersion } from "./tabSync";
 
@@ -89,7 +88,7 @@ const saveDataStateToLocalStorage = (
 
     localStorage.setItem(
       STORAGE_KEYS.LOCAL_STORAGE_ELEMENTS,
-      JSON.stringify(getNonDeletedElements(elements)),
+      JSON.stringify(clearElementsForLocalStorage(elements)),
     );
     localStorage.setItem(
       STORAGE_KEYS.LOCAL_STORAGE_APP_STATE,
@@ -167,7 +166,6 @@ export class LocalData {
   // ---------------------------------------------------------------------------
 
   static fileStorage = new LocalFileManager({
-    onFileStatusChange: FileStatusStore.updateStatuses.bind(FileStatusStore),
     getFiles(ids) {
       return getMany(ids, filesStore).then(
         async (filesData: (BinaryFileData | undefined)[]) => {

excalidraw-app/data/TTDStorage.ts

@@ -1,51 +0,0 @@
-import { createStore, get, set } from "idb-keyval";
-
-import type { SavedChats } from "@excalidraw/excalidraw/components/TTDDialog/types";
-
-import { STORAGE_KEYS } from "../app_constants";
-
-/**
- * IndexedDB adapter for TTD chat storage.
- * Implements TTDPersistenceAdapter interface.
- */
-export class TTDIndexedDBAdapter {
-  /** IndexedDB database name */
-  private static idb_name = STORAGE_KEYS.IDB_TTD_CHATS;
-  /** Store key for chat data */
-  private static key = "ttdChats";
-
-  private static store = createStore(
-    `${TTDIndexedDBAdapter.idb_name}-db`,
-    `${TTDIndexedDBAdapter.idb_name}-store`,
-  );
-
-  /**
-   * Load saved chats from IndexedDB.
-   * @returns Promise resolving to saved chats array (empty if none found)
-   */
-  static async loadChats(): Promise<SavedChats> {
-    try {
-      const data = await get<SavedChats>(
-        TTDIndexedDBAdapter.key,
-        TTDIndexedDBAdapter.store,
-      );
-      return data || [];
-    } catch (error) {
-      console.warn("Failed to load TTD chats from IndexedDB:", error);
-      return [];
-    }
-  }
-
-  /**
-   * Save chats to IndexedDB.
-   * @param chats - The chats array to persist
-   */
-  static async saveChats(chats: SavedChats): Promise<void> {
-    try {
-      await set(TTDIndexedDBAdapter.key, chats, TTDIndexedDBAdapter.store);
-    } catch (error) {
-      console.warn("Failed to save TTD chats to IndexedDB:", error);
-      throw error;
-    }
-  }
-}

excalidraw-app/data/fileStatusStore.ts

@@ -1,48 +0,0 @@
-import { VersionedSnapshotStore } from "@excalidraw/common";
-
-import type { FileId } from "@excalidraw/element/types";
-
-export type FileLoadingStatus = "loading" | "loaded" | "error";
-
-export class FileStatusStore {
-  private static store = new VersionedSnapshotStore<
-    Map<FileId, FileLoadingStatus>
-  >(new Map());
-
-  static getSnapshot() {
-    return this.store.getSnapshot();
-  }
-
-  static pull(sinceVersion?: number) {
-    return this.store.pull(sinceVersion);
-  }
-
-  static updateStatuses(updates: Array<[FileId, FileLoadingStatus]>) {
-    if (!updates.length) {
-      return;
-    }
-    this.store.update((prev) => {
-      let changed = false;
-      const next = new Map(prev);
-      for (const [id, status] of updates) {
-        if (next.get(id) !== status) {
-          next.set(id, status);
-          changed = true;
-        }
-      }
-      return changed ? next : prev;
-    });
-  }
-
-  static getPendingCount(statuses: Map<FileId, FileLoadingStatus>) {
-    let pending = 0;
-    let total = 0;
-    for (const status of statuses.values()) {
-      total++;
-      if (status === "loading") {
-        pending++;
-      }
-    }
-    return { pending, total };
-  }
-}

excalidraw-app/data/firebase.ts

@@ -1,5 +1,5 @@
 import { reconcileElements } from "@excalidraw/excalidraw";
-import { MIME_TYPES, toBrandedType } from "@excalidraw/common";
+import { MIME_TYPES } from "@excalidraw/common";
 import { decompressData } from "@excalidraw/excalidraw/data/encode";
 import {
   encryptData,
@@ -105,8 +105,8 @@ const decryptElements = async (
   data: FirebaseStoredScene,
   roomKey: string,
 ): Promise<readonly ExcalidrawElement[]> => {
-  const ciphertext = data.ciphertext.toUint8Array() as Uint8Array<ArrayBuffer>;
-  const iv = data.iv.toUint8Array() as Uint8Array<ArrayBuffer>;
+  const ciphertext = data.ciphertext.toUint8Array();
+  const iv = data.iv.toUint8Array();
 
   const decrypted = await decryptData(iv, ciphertext, roomKey);
   const decodedData = new TextDecoder("utf-8").decode(
@@ -243,7 +243,7 @@ export const saveToFirebase = async (
 
   FirebaseSceneVersionCache.set(socket, storedElements);
 
-  return toBrandedType<RemoteExcalidrawElement[]>(storedElements);
+  return storedElements;
 };
 
 export const loadFromFirebase = async (

excalidraw-app/data/index.ts

@@ -8,6 +8,7 @@ import {
   IV_LENGTH_BYTES,
 } from "@excalidraw/excalidraw/data/encryption";
 import { serializeAsJSON } from "@excalidraw/excalidraw/data/json";
+import { restore } from "@excalidraw/excalidraw/data/restore";
 import { isInvisiblySmallElement } from "@excalidraw/element";
 import { isInitializedImageElement } from "@excalidraw/element";
 import { t } from "@excalidraw/excalidraw/i18n";
@@ -83,13 +84,13 @@ export type SocketUpdateDataSource = {
   SCENE_INIT: {
     type: WS_SUBTYPES.INIT;
     payload: {
-      elements: readonly OrderedExcalidrawElement[];
+      elements: readonly ExcalidrawElement[];
     };
   };
   SCENE_UPDATE: {
     type: WS_SUBTYPES.UPDATE;
     payload: {
-      elements: readonly OrderedExcalidrawElement[];
+      elements: readonly ExcalidrawElement[];
     };
   };
   MOUSE_LOCATION: {
@@ -199,7 +200,7 @@ const legacy_decodeFromBackend = async ({
   };
 };
 
-export const importFromBackend = async (
+const importFromBackend = async (
   id: string,
   decryptionKey: string,
 ): Promise<ImportedDataState> => {
@@ -241,6 +242,45 @@ export const importFromBackend = async (
   }
 };
 
+export const loadScene = async (
+  id: string | null,
+  privateKey: string | null,
+  // Supply local state even if importing from backend to ensure we restore
+  // localStorage user settings which we do not persist on server.
+  // Non-optional so we don't forget to pass it even if `undefined`.
+  localDataState: ImportedDataState | undefined | null,
+) => {
+  let data;
+  if (id != null && privateKey != null) {
+    // the private key is used to decrypt the content from the server, take
+    // extra care not to leak it
+    data = restore(
+      await importFromBackend(id, privateKey),
+      localDataState?.appState,
+      localDataState?.elements,
+      {
+        repairBindings: true,
+        refreshDimensions: false,
+        deleteInvisibleElements: true,
+      },
+    );
+  } else {
+    data = restore(localDataState || null, null, null, {
+      repairBindings: true,
+      deleteInvisibleElements: true,
+    });
+  }
+
+  return {
+    elements: data.elements,
+    appState: data.appState,
+    // note: this will always be empty because we're not storing files
+    // in the scene database/localStorage, and instead fetch them async
+    // from a different database
+    files: data.files,
+  };
+};
+
 type ExportToBackendResult =
   | { url: null; errorMessage: string }
   | { url: string; errorMessage: null };

excalidraw-app/data/localStorage.ts

@@ -2,6 +2,7 @@ import {
   clearAppStateForLocalStorage,
   getDefaultAppState,
 } from "@excalidraw/excalidraw/appState";
+import { clearElementsForLocalStorage } from "@excalidraw/element";
 
 import type { ExcalidrawElement } from "@excalidraw/element/types";
 import type { AppState } from "@excalidraw/excalidraw/types";
@@ -49,7 +50,7 @@ export const importFromLocalStorage = () => {
   let elements: ExcalidrawElement[] = [];
   if (savedElements) {
     try {
-      elements = JSON.parse(savedElements);
+      elements = clearElementsForLocalStorage(JSON.parse(savedElements));
     } catch (error: any) {
       console.error(error);
       // Do nothing because elements array is already empty

excalidraw-app/debug.ts

@@ -1,9 +1,17 @@
+declare global {
+  interface Window {
+    debug: typeof Debug;
+  }
+}
+
 const lessPrecise = (num: number, precision = 5) =>
   parseFloat(num.toPrecision(precision));
 
 const getAvgFrameTime = (times: number[]) =>
   lessPrecise(times.reduce((a, b) => a + b) / times.length);
 
+const getFps = (frametime: number) => lessPrecise(1000 / frametime);
+
 export class Debug {
   public static DEBUG_LOG_TIMES = true;
 
@@ -16,35 +24,34 @@ export class Debug {
   private static LAST_DEBUG_LOG_CALL = 0;
   private static DEBUG_LOG_INTERVAL_ID: null | number = null;
 
-  private static LAST_FRAME_TIMESTAMP = 0;
-  private static FRAME_COUNT = 0;
-  private static ANIMATION_FRAME_ID: null | number = null;
-
-  private static scheduleAnimationFrame = () => {
-    if (Debug.DEBUG_LOG_INTERVAL_ID !== null) {
-      Debug.ANIMATION_FRAME_ID = requestAnimationFrame((timestamp) => {
-        if (Debug.LAST_FRAME_TIMESTAMP !== timestamp) {
-          Debug.LAST_FRAME_TIMESTAMP = timestamp;
-          Debug.FRAME_COUNT++;
-        }
-
-        if (Debug.DEBUG_LOG_INTERVAL_ID !== null) {
-          Debug.scheduleAnimationFrame();
-        }
-      });
-    }
-  };
-
   private static setupInterval = () => {
     if (Debug.DEBUG_LOG_INTERVAL_ID === null) {
       console.info("%c(starting perf recording)", "color: lime");
       Debug.DEBUG_LOG_INTERVAL_ID = window.setInterval(Debug.debugLogger, 1000);
-      Debug.scheduleAnimationFrame();
     }
     Debug.LAST_DEBUG_LOG_CALL = Date.now();
   };
 
   private static debugLogger = () => {
+    if (
+      Date.now() - Debug.LAST_DEBUG_LOG_CALL > 600 &&
+      Debug.DEBUG_LOG_INTERVAL_ID !== null
+    ) {
+      window.clearInterval(Debug.DEBUG_LOG_INTERVAL_ID);
+      Debug.DEBUG_LOG_INTERVAL_ID = null;
+      for (const [name, { avg }] of Object.entries(Debug.TIMES_AVG)) {
+        if (avg != null) {
+          console.info(
+            `%c${name} run avg: ${avg}ms (${getFps(avg)} fps)`,
+            "color: blue",
+          );
+        }
+      }
+      console.info("%c(stopping perf recording)", "color: red");
+      Debug.TIMES_AGGR = {};
+      Debug.TIMES_AVG = {};
+      return;
+    }
     if (Debug.DEBUG_LOG_TIMES) {
       for (const [name, { t, times }] of Object.entries(Debug.TIMES_AGGR)) {
         if (times.length) {
@@ -58,18 +65,8 @@ export class Debug {
       }
       for (const [name, { t, times, avg }] of Object.entries(Debug.TIMES_AVG)) {
         if (times.length) {
-          // const avgFrameTime = getAvgFrameTime(times);
-          const totalTime = times.reduce((a, b) => a + b);
-          const avgFrameTime = lessPrecise(totalTime / Debug.FRAME_COUNT);
-          console.info(
-            name,
-            `- ${times.length} calls - ${avgFrameTime}ms/frame across ${
-              Debug.FRAME_COUNT
-            } frames (${lessPrecise(
-              (avgFrameTime / 16.67) * 100,
-              1,
-            )}% of frame budget)`,
-          );
+          const avgFrameTime = getAvgFrameTime(times);
+          console.info(name, `${avgFrameTime}ms (${getFps(avgFrameTime)} fps)`);
           Debug.TIMES_AVG[name] = {
             t,
             times: [],
@@ -79,24 +76,6 @@ export class Debug {
         }
       }
     }
-    Debug.FRAME_COUNT = 0;
-
-    // Check for stop condition after logging
-    if (
-      Date.now() - Debug.LAST_DEBUG_LOG_CALL > 600 &&
-      Debug.DEBUG_LOG_INTERVAL_ID !== null
-    ) {
-      console.info("%c(stopping perf recording)", "color: red");
-      window.clearInterval(Debug.DEBUG_LOG_INTERVAL_ID);
-      window.cancelAnimationFrame(Debug.ANIMATION_FRAME_ID!);
-      Debug.ANIMATION_FRAME_ID = null;
-      Debug.FRAME_COUNT = 0;
-      Debug.LAST_FRAME_TIMESTAMP = 0;
-
-      Debug.DEBUG_LOG_INTERVAL_ID = null;
-      Debug.TIMES_AGGR = {};
-      Debug.TIMES_AVG = {};
-    }
   };
 
   public static logTime = (time?: number, name = "default") => {
@@ -130,7 +109,7 @@ export class Debug {
       return (...args: T) => {
         const t0 = performance.now();
         const ret = fn(...args);
-        Debug[type](performance.now() - t0, name);
+        Debug.logTime(performance.now() - t0, name);
         return ret;
       };
     };
@@ -151,70 +130,6 @@ export class Debug {
       return ret;
     };
   };
-
-  private static CHANGED_CACHE: Record<string, Record<string, unknown>> = {};
-
-  public static logChanged(name: string, obj: Record<string, unknown>) {
-    const prev = Debug.CHANGED_CACHE[name];
-
-    Debug.CHANGED_CACHE[name] = obj;
-
-    if (!prev) {
-      return;
-    }
-
-    const allKeys = new Set([...Object.keys(prev), ...Object.keys(obj)]);
-    const changed: Record<string, { prev: unknown; next: unknown }> = {};
-
-    for (const key of allKeys) {
-      const prevVal = prev[key];
-      const nextVal = obj[key];
-      if (!deepEqual(prevVal, nextVal)) {
-        changed[key] = { prev: prevVal, next: nextVal };
-      }
-    }
-
-    if (Object.keys(changed).length > 0) {
-      console.info(`[${name}] changed:`, changed);
-    }
-  }
-}
-
-function deepEqual(a: unknown, b: unknown): boolean {
-  if (Object.is(a, b)) {
-    return true;
-  }
-
-  if (
-    a === null ||
-    b === null ||
-    typeof a !== "object" ||
-    typeof b !== "object"
-  ) {
-    return false;
-  }
-
-  if (Array.isArray(a) !== Array.isArray(b)) {
-    return false;
-  }
-
-  const keysA = Object.keys(a as Record<string, unknown>);
-  const keysB = Object.keys(b as Record<string, unknown>);
-
-  if (keysA.length !== keysB.length) {
-    return false;
-  }
-
-  for (const key of keysA) {
-    if (
-      !deepEqual(
-        (a as Record<string, unknown>)[key],
-        (b as Record<string, unknown>)[key],
-      )
-    ) {
-      return false;
-    }
-  }
-
-  return true;
 }
+//@ts-ignore
+window.debug = Debug;

excalidraw-app/index.scss

@@ -1,5 +1,3 @@
-@import "../packages/excalidraw/css/variables.module.scss";
-
 .excalidraw {
   --color-primary-contrast-offset: #625ee0; // to offset Chubb illusion
 
@@ -7,6 +5,12 @@
     --color-primary-contrast-offset: #726dff; // to offset Chubb illusion
   }
 
+  .top-right-ui {
+    display: flex;
+    justify-content: center;
+    align-items: flex-start;
+  }
+
   .footer-center {
     justify-content: flex-end;
     margin-top: auto;
@@ -86,31 +90,22 @@
   }
 }
 
-.plus-banner {
+.plus-button {
   display: flex;
   justify-content: center;
   cursor: pointer;
   align-items: center;
   border: 1px solid var(--color-primary);
-  padding: 0.5rem 0.875rem;
+  padding: 0.5rem 0.75rem;
   border-radius: var(--border-radius-lg);
   background-color: var(--island-bg-color);
+  color: var(--color-primary) !important;
   text-decoration: none !important;
 
-  font-family: var(--ui-font);
-  font-size: 0.8333rem;
+  font-size: 0.75rem;
   box-sizing: border-box;
   height: var(--lg-button-size);
 
-  border: none;
-  box-shadow: 0 0 0 1px var(--color-surface-lowest);
-  background-color: var(--color-surface-low);
-  color: var(--button-color, var(--color-on-surface)) !important;
-
-  &:active {
-    box-shadow: 0 0 0 1px var(--color-brand-active);
-  }
-
   &:hover {
     background-color: var(--color-primary);
     color: white !important;
@@ -122,7 +117,7 @@
 }
 
 .theme--dark {
-  .plus-banner {
+  .plus-button {
     &:hover {
       color: black !important;
     }

excalidraw-app/package.json

@@ -23,7 +23,7 @@
     ]
   },
   "engines": {
-    "node": ">=18.0.0"
+    "node": "18.0.0 - 22.x.x"
   },
   "dependencies": {
     "@excalidraw/random-username": "1.0.0",
@@ -36,7 +36,6 @@
     "react": "19.0.0",
     "react-dom": "19.0.0",
     "socket.io-client": "4.7.2",
-    "uqr": "0.1.2",
     "vite-plugin-html": "3.2.2"
   },
   "prettier": "@excalidraw/prettier-config",

excalidraw-app/sentry.ts

@@ -1,4 +1,3 @@
-import { getFeatureFlag } from "@excalidraw/common";
 import * as Sentry from "@sentry/browser";
 import callsites from "callsites";
 
@@ -34,7 +33,6 @@ Sentry.init({
     Sentry.captureConsoleIntegration({
       levels: ["error"],
     }),
-    Sentry.featureFlagsIntegration(),
   ],
   beforeSend(event) {
     if (event.request?.url) {
@@ -81,14 +79,3 @@ Sentry.init({
     return event;
   },
 });
-
-const flagsIntegration =
-  Sentry.getClient()?.getIntegrationByName<Sentry.FeatureFlagsIntegration>(
-    "FeatureFlags",
-  );
-if (flagsIntegration) {
-  flagsIntegration.addFeatureFlag(
-    "COMPLEX_BINDINGS",
-    getFeatureFlag("COMPLEX_BINDINGS"),
-  );
-}

excalidraw-app/share/QRCode.tsx

@@ -1,56 +0,0 @@
-import { useEffect, useState } from "react";
-import Spinner from "@excalidraw/excalidraw/components/Spinner";
-
-interface QRCodeProps {
-  value: string;
-}
-
-export const QRCode = ({ value }: QRCodeProps) => {
-  const [svgData, setSvgData] = useState<string | null>(null);
-  const [error, setError] = useState<boolean>(false);
-
-  useEffect(() => {
-    let mounted = true;
-
-    import("./qrcode.chunk")
-      .then(({ generateQRCodeSVG }) => {
-        if (mounted) {
-          try {
-            setSvgData(generateQRCodeSVG(value));
-          } catch {
-            setError(true);
-          }
-        }
-      })
-      .catch(() => {
-        if (mounted) {
-          setError(true);
-        }
-      });
-
-    return () => {
-      mounted = false;
-    };
-  }, [value]);
-
-  if (error) {
-    return null;
-  }
-
-  if (!svgData) {
-    return (
-      <div className="ShareDialog__active__qrcode ShareDialog__active__qrcode--loading">
-        <Spinner />
-      </div>
-    );
-  }
-
-  return (
-    <div
-      className="ShareDialog__active__qrcode"
-      role="img"
-      aria-label="QR code for collaboration link"
-      dangerouslySetInnerHTML={{ __html: svgData }}
-    />
-  );
-};

excalidraw-app/share/ShareDialog.scss

@@ -140,31 +140,6 @@
         gap: 0.75rem;
       }
 
-      &__qrcode {
-        display: flex;
-        justify-content: center;
-        align-items: center;
-        align-self: center;
-        padding: 1rem;
-        background: #fff;
-        border-radius: 0.5rem;
-        border: 1px solid #e0e0e0;
-
-        $size: 150px;
-        width: $size;
-        height: $size;
-
-        & svg {
-          width: $size;
-          height: $size;
-        }
-
-        &--loading {
-          background: var(--island-bg-color);
-          border: 1px solid var(--dialog-border-color);
-        }
-      }
-
       &__description {
         border-top: 1px solid var(--color-gray-20);
 

excalidraw-app/share/ShareDialog.tsx

@@ -22,7 +22,6 @@ import { atom, useAtom, useAtomValue } from "../app-jotai";
 import { activeRoomLinkAtom } from "../collab/Collab";
 
 import "./ShareDialog.scss";
-import { QRCode } from "./QRCode";
 
 import type { CollabAPI } from "../collab/Collab";
 
@@ -143,7 +142,6 @@ const ActiveRoomDialog = ({
           }}
         />
       </div>
-      <QRCode value={activeRoomLink} />
       <div className="ShareDialog__active__description">
         <p>
           <span

excalidraw-app/share/qrcode.chunk.ts

@@ -1,5 +0,0 @@
-import { renderSVG } from "uqr";
-
-export const generateQRCodeSVG = (text: string): string => {
-  return renderSVG(text);
-};

excalidraw-app/tests/LanguageList.test.tsx

@@ -1,34 +0,0 @@
-import { defaultLang } from "@excalidraw/excalidraw/i18n";
-import { UI } from "@excalidraw/excalidraw/tests/helpers/ui";
-import {
-  screen,
-  fireEvent,
-  waitFor,
-  render,
-} from "@excalidraw/excalidraw/tests/test-utils";
-
-import ExcalidrawApp from "../App";
-
-describe("Test LanguageList", () => {
-  it("rerenders UI on language change", async () => {
-    await render(<ExcalidrawApp />);
-
-    // select rectangle tool to show properties menu
-    UI.clickTool("rectangle");
-    // english lang should display `thin` label
-    expect(screen.queryByTitle(/thin/i)).not.toBeNull();
-    fireEvent.click(document.querySelector(".dropdown-menu-button")!);
-
-    fireEvent.change(document.querySelector(".dropdown-select__language")!, {
-      target: { value: "de-DE" },
-    });
-    // switching to german, `thin` label should no longer exist
-    await waitFor(() => expect(screen.queryByTitle(/thin/i)).toBeNull());
-    // reset language
-    fireEvent.change(document.querySelector(".dropdown-select__language")!, {
-      target: { value: defaultLang.code },
-    });
-    // switching back to English
-    await waitFor(() => expect(screen.queryByTitle(/thin/i)).not.toBeNull());
-  });
-});

excalidraw-app/tests/MobileMenu.test.tsx

@@ -17,15 +17,30 @@ describe("Test MobileMenu", () => {
 
   beforeEach(async () => {
     await render(<ExcalidrawApp />);
-    h.app.refreshEditorInterface();
+    // @ts-ignore
+    h.app.refreshViewportBreakpoints();
+    // @ts-ignore
+    h.app.refreshEditorBreakpoints();
   });
 
   afterAll(() => {
     restoreOriginalGetBoundingClientRect();
   });
 
-  it("should set editor interface correctly", () => {
-    expect(h.app.editorInterface.formFactor).toBe("phone");
+  it("should set device correctly", () => {
+    expect(h.app.device).toMatchInlineSnapshot(`
+      {
+        "editor": {
+          "canFitSidebar": false,
+          "isMobile": true,
+        },
+        "isTouchScreen": false,
+        "viewport": {
+          "isLandscape": true,
+          "isMobile": true,
+        },
+      }
+    `);
   });
 
   it("should initialize with welcome screen and hide once user interacts", async () => {

excalidraw-app/tests/__snapshots__/MobileMenu.test.tsx.snap

@@ -50,11 +50,7 @@ exports[`Test MobileMenu > should initialize with welcome screen and hide once u
   <div
     class="welcome-screen-center__heading welcome-screen-decor excalifont"
   >
-    Your drawings are saved in your browser's storage.
-    <br />
-    Browser storage can be cleared unexpectedly.
-    <br />
-    Save your work to a file regularly to avoid losing it.
+    All your data is saved locally in your browser.
   </div>
   <div
     class="welcome-screen-menu"

excalidraw-app/vite.config.mts

@@ -102,14 +102,6 @@ export default defineConfig(({ mode }) => {
               // Taking the substring after "locales/"
               return `locales/${id.substring(index + 8)}`;
             }
-
-            if (id.includes("@excalidraw/mermaid-to-excalidraw")) {
-              return "mermaid-to-excalidraw";
-            }
-
-            if (id.includes("@codemirror/") || id.includes("@lezer/")) {
-              return "codemirror.chunk";
-            }
           },
         },
       },
@@ -154,11 +146,6 @@ export default defineConfig(({ mode }) => {
             "**/locales/**",
             "service-worker.js",
             "**/*.chunk-*.js",
-            // CodeMirrorEditor can't be assigned a `.chunk` name via
-            // manualChunks because Rollup would hoist shared deps (React)
-            // via a static import from the main bundle, defeating lazy
-            // loading. So we exclude it by name instead.
-            "**/CodeMirrorEditor-*.js",
           ],
           runtimeCaching: [
             {
@@ -198,7 +185,7 @@ export default defineConfig(({ mode }) => {
               },
             },
             {
-              urlPattern: new RegExp("(.chunk-.+|CodeMirrorEditor-.+)\\.js"),
+              urlPattern: new RegExp(".chunk-.+.js"),
               handler: "CacheFirst",
               options: {
                 cacheName: "chunk",
@@ -209,7 +196,6 @@ export default defineConfig(({ mode }) => {
               },
             },
           ],
-          maximumFileSizeToCacheInBytes: 2.3 * 1024 ** 2, // 2.3MB
         },
         manifest: {
           short_name: "Excalidraw",

package.json

@@ -34,7 +34,7 @@
     "prettier": "2.6.2",
     "rewire": "6.0.0",
     "rimraf": "^5.0.0",
-    "typescript": "5.9.3",
+    "typescript": "4.9.4",
     "vite": "5.0.12",
     "vite-plugin-checker": "0.7.2",
     "vite-plugin-ejs": "1.7.0",
@@ -44,7 +44,7 @@
     "vitest-canvas-mock": "0.3.3"
   },
   "engines": {
-    "node": ">=18.0.0"
+    "node": "18.0.0 - 22.x.x"
   },
   "homepage": ".",
   "prettier": "@excalidraw/prettier-config",

packages/common/package.json

@@ -55,11 +55,5 @@
   "scripts": {
     "gen:types": "rimraf types && tsc",
     "build:esm": "rimraf dist && node ../../scripts/buildBase.js && yarn gen:types"
-  },
-  "dependencies": {
-    "tinycolor2": "1.6.0"
-  },
-  "devDependencies": {
-    "@types/tinycolor2": "1.4.6"
   }
 }

packages/common/src/__snapshots__/colors.test.ts.snap

@@ -1,185 +0,0 @@
-// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
-
-exports[`COLOR_PALETTE > color palette doesn't regress 1`] = `
-{
-  "black": "#1e1e1e",
-  "blue": [
-    "#e7f5ff",
-    "#a5d8ff",
-    "#4dabf7",
-    "#228be6",
-    "#1971c2",
-  ],
-  "bronze": [
-    "#f8f1ee",
-    "#eaddd7",
-    "#d2bab0",
-    "#a18072",
-    "#846358",
-  ],
-  "cyan": [
-    "#e3fafc",
-    "#99e9f2",
-    "#3bc9db",
-    "#15aabf",
-    "#0c8599",
-  ],
-  "grape": [
-    "#f8f0fc",
-    "#eebefa",
-    "#da77f2",
-    "#be4bdb",
-    "#9c36b5",
-  ],
-  "gray": [
-    "#f8f9fa",
-    "#e9ecef",
-    "#ced4da",
-    "#868e96",
-    "#343a40",
-  ],
-  "green": [
-    "#ebfbee",
-    "#b2f2bb",
-    "#69db7c",
-    "#40c057",
-    "#2f9e44",
-  ],
-  "orange": [
-    "#fff4e6",
-    "#ffd8a8",
-    "#ffa94d",
-    "#fd7e14",
-    "#e8590c",
-  ],
-  "pink": [
-    "#fff0f6",
-    "#fcc2d7",
-    "#f783ac",
-    "#e64980",
-    "#c2255c",
-  ],
-  "red": [
-    "#fff5f5",
-    "#ffc9c9",
-    "#ff8787",
-    "#fa5252",
-    "#e03131",
-  ],
-  "teal": [
-    "#e6fcf5",
-    "#96f2d7",
-    "#38d9a9",
-    "#12b886",
-    "#099268",
-  ],
-  "transparent": "transparent",
-  "violet": [
-    "#f3f0ff",
-    "#d0bfff",
-    "#9775fa",
-    "#7950f2",
-    "#6741d9",
-  ],
-  "white": "#ffffff",
-  "yellow": [
-    "#fff9db",
-    "#ffec99",
-    "#ffd43b",
-    "#fab005",
-    "#f08c00",
-  ],
-}
-`;
-
-exports[`applyDarkModeFilter > COLOR_PALETTE regression tests > matches snapshot for all palette colors 1`] = `
-{
-  "black": "#d3d3d3",
-  "blue": [
-    "#121e26",
-    "#154162",
-    "#2273b4",
-    "#3791e0",
-    "#56a2e8",
-  ],
-  "bronze": [
-    "#221c1a",
-    "#362b26",
-    "#5a463d",
-    "#917569",
-    "#a98d84",
-  ],
-  "cyan": [
-    "#0a1e20",
-    "#004149",
-    "#007281",
-    "#0f8fa1",
-    "#3da5b6",
-  ],
-  "grape": [
-    "#211a25",
-    "#5b3165",
-    "#a954be",
-    "#d471ed",
-    "#e28af8",
-  ],
-  "gray": [
-    "#161718",
-    "#202325",
-    "#33383d",
-    "#6e757c",
-    "#b7bcc1",
-  ],
-  "green": [
-    "#0f1d12",
-    "#043b0c",
-    "#056715",
-    "#16842a",
-    "#39994b",
-  ],
-  "orange": [
-    "#22190d",
-    "#4c2b01",
-    "#924800",
-    "#cd6005",
-    "#f17634",
-  ],
-  "pink": [
-    "#26191e",
-    "#602e40",
-    "#b04d70",
-    "#f56e9d",
-    "#ff8dbc",
-  ],
-  "red": [
-    "#1f1717",
-    "#5a2c2c",
-    "#b44d4d",
-    "#fa6969",
-    "#ff8383",
-  ],
-  "teal": [
-    "#0a1d17",
-    "#00422b",
-    "#00744b",
-    "#039267",
-    "#32a783",
-  ],
-  "transparent": "#ededed00",
-  "violet": [
-    "#1f1c29",
-    "#4a3b72",
-    "#8a6cdf",
-    "#a885ff",
-    "#b595ff",
-  ],
-  "white": "#121212",
-  "yellow": [
-    "#1e1900",
-    "#362600",
-    "#5f3a00",
-    "#905000",
-    "#b86200",
-  ],
-}
-`;

packages/common/src/appEventBus.test.ts

@@ -1,74 +0,0 @@
-import { AppEventBus } from "./appEventBus";
-
-type TestEvents = {
-  initialize: [api: number];
-  pointerUp: [pointerId: string];
-  viewState: [zoom: number];
-};
-
-const behavior = {
-  initialize: { cardinality: "once", replay: "last" },
-  pointerUp: { cardinality: "many", replay: "none" },
-  viewState: { cardinality: "many", replay: "last" },
-} as const;
-
-const flushMicrotasks = async () => Promise.resolve();
-
-describe("AppEventBus", () => {
-  it("replays once events to late callback and Promise subscribers", async () => {
-    const bus = new AppEventBus<TestEvents, typeof behavior>(behavior);
-    bus.emit("initialize", 42);
-
-    const calls: number[] = [];
-    bus.on("initialize", (value) => {
-      calls.push(value);
-    });
-
-    expect(calls).toEqual([]);
-    await flushMicrotasks();
-    expect(calls).toEqual([42]);
-
-    await expect(bus.on("initialize")).resolves.toBe(42);
-  });
-
-  it("does not replay stream events to late subscribers", async () => {
-    const bus = new AppEventBus<TestEvents, typeof behavior>(behavior);
-    bus.emit("pointerUp", "first");
-
-    const calls: string[] = [];
-    bus.on("pointerUp", (pointerId) => {
-      calls.push(pointerId);
-    });
-
-    await flushMicrotasks();
-    expect(calls).toEqual([]);
-
-    bus.emit("pointerUp", "second");
-    expect(calls).toEqual(["second"]);
-  });
-
-  it("replays replay-last stream events and stays subscribed", async () => {
-    const bus = new AppEventBus<TestEvents, typeof behavior>(behavior);
-    bus.emit("viewState", 1);
-
-    const calls: number[] = [];
-    bus.on("viewState", (zoom) => {
-      calls.push(zoom);
-    });
-
-    await flushMicrotasks();
-    expect(calls).toEqual([1]);
-
-    bus.emit("viewState", 2);
-    expect(calls).toEqual([1, 2]);
-  });
-
-  it("throws when emitting a once event twice", () => {
-    const bus = new AppEventBus<TestEvents, typeof behavior>(behavior);
-    bus.emit("initialize", 1);
-
-    expect(() => {
-      bus.emit("initialize", 2);
-    }).toThrow('Event "initialize" can only be emitted once');
-  });
-});

packages/common/src/appEventBus.ts

@@ -1,136 +0,0 @@
-import type { UnsubscribeCallback } from "@excalidraw/excalidraw/types";
-
-import { Emitter } from "./emitter";
-import { isProdEnv } from "./utils";
-
-export type AppEventPayloadMap = Record<string, unknown[]>;
-
-export type AppEventBehavior = {
-  cardinality: "once" | "many";
-  replay: "none" | "last";
-};
-
-export type AppEventBehaviorMap<Events extends AppEventPayloadMap> = {
-  [K in keyof Events]: AppEventBehavior;
-};
-
-type AwaitableAppEventKeys<
-  Events extends AppEventPayloadMap,
-  Behavior extends AppEventBehaviorMap<Events>,
-> = {
-  [K in keyof Events]: Behavior[K]["cardinality"] extends "once"
-    ? Behavior[K]["replay"] extends "last"
-      ? K
-      : never
-    : never;
-}[keyof Events];
-
-type AppEventPromiseValue<Args extends any[]> = Args extends [infer Only]
-  ? Only
-  : Args;
-
-export class AppEventBus<
-  Events extends AppEventPayloadMap,
-  Behavior extends AppEventBehaviorMap<Events>,
-> {
-  private readonly emitters = new Map<keyof Events, Emitter<any>>();
-  private readonly lastPayload = new Map<keyof Events, any[]>();
-  private readonly emittedOnce = new Set<keyof Events>();
-
-  constructor(private readonly behavior: Behavior) {}
-
-  private getEmitter<K extends keyof Events>(name: K): Emitter<Events[K]> {
-    let emitter = this.emitters.get(name);
-    if (!emitter) {
-      emitter = new Emitter<any>();
-      this.emitters.set(name, emitter);
-    }
-    return emitter as Emitter<Events[K]>;
-  }
-
-  private toPromiseValue<Args extends any[]>(
-    args: Args,
-  ): AppEventPromiseValue<Args> {
-    return (args.length === 1 ? args[0] : args) as AppEventPromiseValue<Args>;
-  }
-
-  public on<K extends keyof Events>(
-    name: K,
-    callback: (...args: Events[K]) => void,
-  ): UnsubscribeCallback;
-  public on<K extends AwaitableAppEventKeys<Events, Behavior>>(
-    name: K,
-  ): Promise<AppEventPromiseValue<Events[K]>>;
-  public on<K extends keyof Events>(
-    name: K,
-    callback?: (...args: Events[K]) => void,
-  ): UnsubscribeCallback | Promise<AppEventPromiseValue<Events[K]>> {
-    const eventBehavior = this.behavior[name];
-    const cachedPayload = this.lastPayload.get(name) as Events[K] | undefined;
-
-    if (callback) {
-      if (eventBehavior.replay === "last" && cachedPayload) {
-        queueMicrotask(() => callback(...cachedPayload));
-
-        if (eventBehavior.cardinality === "once") {
-          return () => {};
-        }
-      }
-
-      return this.getEmitter(name).on(callback);
-    }
-
-    if (
-      eventBehavior.cardinality !== "once" ||
-      eventBehavior.replay !== "last"
-    ) {
-      throw new Error(`Event "${String(name)}" requires a callback`);
-    }
-
-    if (cachedPayload) {
-      return Promise.resolve(this.toPromiseValue(cachedPayload));
-    }
-
-    return new Promise<AppEventPromiseValue<Events[K]>>((resolve) => {
-      this.getEmitter(name).once((...args: Events[K]) => {
-        resolve(this.toPromiseValue(args));
-      });
-    });
-  }
-
-  public emit<K extends keyof Events>(name: K, ...args: Events[K]) {
-    const eventBehavior = this.behavior[name];
-
-    if (!isProdEnv()) {
-      if (eventBehavior.cardinality === "once") {
-        if (this.emittedOnce.has(name)) {
-          throw new Error(`Event "${String(name)}" can only be emitted once`);
-        }
-        this.emittedOnce.add(name);
-      }
-    }
-
-    if (eventBehavior.replay === "last") {
-      this.lastPayload.set(name, args);
-    }
-
-    try {
-      this.getEmitter(name).trigger(...args);
-    } finally {
-      if (eventBehavior.cardinality === "once") {
-        this.getEmitter(name).clear();
-      }
-    }
-  }
-
-  public clear() {
-    this.lastPayload.clear();
-    this.emittedOnce.clear();
-
-    for (const emitter of this.emitters.values()) {
-      emitter.clear();
-    }
-
-    this.emitters.clear();
-  }
-}

packages/common/src/bounds.ts

@@ -1,17 +0,0 @@
-/**
- * x and y position of top left corner, x and y position of bottom right corner
- */
-export type Bounds = readonly [
-  minX: number,
-  minY: number,
-  maxX: number,
-  maxY: number,
-];
-
-export const isBounds = (box: unknown): box is Bounds =>
-  Array.isArray(box) &&
-  box.length === 4 &&
-  typeof box[0] === "number" &&
-  typeof box[1] === "number" &&
-  typeof box[2] === "number" &&
-  typeof box[3] === "number";

packages/common/src/colors.test.ts

@@ -1,286 +0,0 @@
-import {
-  applyDarkModeFilter,
-  COLOR_PALETTE,
-  rgbToHex,
-} from "@excalidraw/common";
-
-describe("COLOR_PALETTE", () => {
-  it("color palette doesn't regress", () => {
-    expect(COLOR_PALETTE).toMatchSnapshot();
-  });
-});
-
-describe("applyDarkModeFilter", () => {
-  describe("basic transformations", () => {
-    it("transforms black to near-white", () => {
-      const result = applyDarkModeFilter("#000000");
-      // Black inverted 93% + hue rotate should be near white/light gray
-      expect(result).toBe("#ededed");
-    });
-
-    it("transforms white to near-black", () => {
-      const result = applyDarkModeFilter("#ffffff");
-      // White inverted 93% should be near black/dark gray
-      expect(result).toBe("#121212");
-    });
-
-    it("transforms pure red", () => {
-      const result = applyDarkModeFilter("#ff0000");
-      // Invert 93% + hue rotate 180deg produces a cyan-ish tint
-      expect(result).toBe("#ff9090");
-    });
-
-    it("transforms pure green", () => {
-      const result = applyDarkModeFilter("#00ff00");
-      // Invert 93% + hue rotate 180deg
-      expect(result).toBe("#008f00");
-    });
-
-    it("transforms pure blue", () => {
-      const result = applyDarkModeFilter("#0000ff");
-      // Invert 93% + hue rotate 180deg produces a light purple
-      expect(result).toBe("#cdcdff");
-    });
-  });
-
-  describe("color formats", () => {
-    it("handles hex with hash", () => {
-      const result = applyDarkModeFilter("#ff0000");
-      // Fully opaque colors return 6-char hex
-      expect(result).toMatch(/^#[0-9a-f]{6}$/);
-    });
-
-    it("handles named colors", () => {
-      const result = applyDarkModeFilter("red");
-      // "red" = #ff0000, fully opaque
-      expect(result).toBe("#ff9090");
-    });
-
-    it("handles rgb format", () => {
-      const result = applyDarkModeFilter("rgb(255, 0, 0)");
-      expect(result).toBe("#ff9090");
-    });
-
-    it("handles rgba format and preserves alpha", () => {
-      const result = applyDarkModeFilter("rgba(255, 0, 0, 0.5)");
-      expect(result).toMatch(/^#[0-9a-f]{8}$/);
-      // Alpha 0.5 = 128 in hex = 80
-      expect(result).toBe("#ff909080");
-    });
-
-    it("handles transparent", () => {
-      const result = applyDarkModeFilter("transparent");
-      // transparent = rgba(0,0,0,0), inverted should still have 0 alpha
-      expect(result).toBe("#ededed00");
-    });
-
-    it("handles shorthand hex", () => {
-      const result = applyDarkModeFilter("#f00");
-      expect(result).toBe("#ff9090");
-    });
-  });
-
-  describe("alpha preservation", () => {
-    it("omits alpha for full opacity", () => {
-      const result = applyDarkModeFilter("#ff0000ff");
-      // Full opacity returns 6-char hex (no alpha suffix)
-      expect(result).toBe("#ff9090");
-    });
-
-    it("preserves 50% opacity", () => {
-      const result = applyDarkModeFilter("#ff000080");
-      expect(result.slice(-2)).toBe("80");
-    });
-
-    it("preserves 0% opacity", () => {
-      const result = applyDarkModeFilter("#ff000000");
-      expect(result.slice(-2)).toBe("00");
-    });
-  });
-
-  describe("COLOR_PALETTE regression tests", () => {
-    it("transforms black from palette", () => {
-      // COLOR_PALETTE.black is #1e1e1e (not pure black)
-      const result = applyDarkModeFilter(COLOR_PALETTE.black);
-      expect(result).toBe("#d3d3d3");
-    });
-
-    it("transforms white from palette", () => {
-      const result = applyDarkModeFilter(COLOR_PALETTE.white);
-      expect(result).toBe("#121212");
-    });
-
-    it("transforms transparent from palette", () => {
-      const result = applyDarkModeFilter(COLOR_PALETTE.transparent);
-      expect(result).toBe("#ededed00");
-    });
-
-    // Test each color family from the palette (all opaque, so 6-char hex)
-    describe("red shades", () => {
-      const redShades = COLOR_PALETTE.red;
-      it.each(redShades.map((color, i) => [color, i]))(
-        "transforms red shade %s (index %d)",
-        (color) => {
-          const result = applyDarkModeFilter(color as string);
-          expect(result).toMatch(/^#[0-9a-f]{6}$/);
-        },
-      );
-    });
-
-    describe("blue shades", () => {
-      const blueShades = COLOR_PALETTE.blue;
-      it.each(blueShades.map((color, i) => [color, i]))(
-        "transforms blue shade %s (index %d)",
-        (color) => {
-          const result = applyDarkModeFilter(color as string);
-          expect(result).toMatch(/^#[0-9a-f]{6}$/);
-        },
-      );
-    });
-
-    describe("green shades", () => {
-      const greenShades = COLOR_PALETTE.green;
-      it.each(greenShades.map((color, i) => [color, i]))(
-        "transforms green shade %s (index %d)",
-        (color) => {
-          const result = applyDarkModeFilter(color as string);
-          expect(result).toMatch(/^#[0-9a-f]{6}$/);
-        },
-      );
-    });
-
-    describe("gray shades", () => {
-      const grayShades = COLOR_PALETTE.gray;
-      it.each(grayShades.map((color, i) => [color, i]))(
-        "transforms gray shade %s (index %d)",
-        (color) => {
-          const result = applyDarkModeFilter(color as string);
-          expect(result).toMatch(/^#[0-9a-f]{6}$/);
-        },
-      );
-    });
-
-    describe("bronze shades", () => {
-      const bronzeShades = COLOR_PALETTE.bronze;
-      it.each(bronzeShades.map((color, i) => [color, i]))(
-        "transforms bronze shade %s (index %d)",
-        (color) => {
-          const result = applyDarkModeFilter(color as string);
-          expect(result).toMatch(/^#[0-9a-f]{6}$/);
-        },
-      );
-    });
-
-    // Snapshot test for full palette to catch any regressions
-    it("matches snapshot for all palette colors", () => {
-      const transformedPalette: Record<string, string | string[]> = {};
-
-      transformedPalette.black = applyDarkModeFilter(COLOR_PALETTE.black);
-      transformedPalette.white = applyDarkModeFilter(COLOR_PALETTE.white);
-      transformedPalette.transparent = applyDarkModeFilter(
-        COLOR_PALETTE.transparent,
-      );
-
-      // Transform color arrays
-      for (const colorName of [
-        "gray",
-        "red",
-        "pink",
-        "grape",
-        "violet",
-        "blue",
-        "cyan",
-        "teal",
-        "green",
-        "yellow",
-        "orange",
-        "bronze",
-      ] as const) {
-        const shades = COLOR_PALETTE[colorName];
-        transformedPalette[colorName] = shades.map((shade) =>
-          applyDarkModeFilter(shade),
-        );
-      }
-
-      expect(transformedPalette).toMatchSnapshot();
-    });
-  });
-
-  describe("caching", () => {
-    it("returns same result for same input (cached)", () => {
-      const result1 = applyDarkModeFilter("#ff0000");
-      const result2 = applyDarkModeFilter("#ff0000");
-      expect(result1).toBe(result2);
-    });
-  });
-});
-
-describe("rgbToHex", () => {
-  describe("basic RGB conversion", () => {
-    it("converts black (0,0,0)", () => {
-      expect(rgbToHex(0, 0, 0)).toBe("#000000");
-    });
-
-    it("converts white (255,255,255)", () => {
-      expect(rgbToHex(255, 255, 255)).toBe("#ffffff");
-    });
-
-    it("converts red (255,0,0)", () => {
-      expect(rgbToHex(255, 0, 0)).toBe("#ff0000");
-    });
-
-    it("converts green (0,255,0)", () => {
-      expect(rgbToHex(0, 255, 0)).toBe("#00ff00");
-    });
-
-    it("converts blue (0,0,255)", () => {
-      expect(rgbToHex(0, 0, 255)).toBe("#0000ff");
-    });
-
-    it("converts arbitrary color", () => {
-      expect(rgbToHex(30, 30, 30)).toBe("#1e1e1e");
-    });
-  });
-
-  describe("leading zeros preservation", () => {
-    it("preserves leading zeros for low values", () => {
-      expect(rgbToHex(0, 0, 1)).toBe("#000001");
-      expect(rgbToHex(0, 1, 0)).toBe("#000100");
-      expect(rgbToHex(1, 0, 0)).toBe("#010000");
-    });
-
-    it("preserves zeros for single-digit hex values", () => {
-      expect(rgbToHex(15, 15, 15)).toBe("#0f0f0f");
-    });
-  });
-
-  describe("alpha handling", () => {
-    it("omits alpha when undefined", () => {
-      expect(rgbToHex(255, 0, 0)).toBe("#ff0000");
-      expect(rgbToHex(255, 0, 0, undefined)).toBe("#ff0000");
-    });
-
-    it("omits alpha when fully opaque (1)", () => {
-      expect(rgbToHex(255, 0, 0, 1)).toBe("#ff0000");
-    });
-
-    it("includes alpha for semi-transparent (0.5)", () => {
-      // 0.5 * 255 = 127.5 -> rounds to 128 = 0x80
-      expect(rgbToHex(255, 0, 0, 0.5)).toBe("#ff000080");
-    });
-
-    it("includes alpha for fully transparent (0)", () => {
-      expect(rgbToHex(255, 0, 0, 0)).toBe("#ff000000");
-    });
-
-    it("includes alpha for near-opaque (0.99)", () => {
-      // 0.99 * 255 = 252.45 -> rounds to 252 = 0xfc
-      expect(rgbToHex(255, 0, 0, 0.99)).toBe("#ff0000fc");
-    });
-
-    it("pads alpha with leading zero when needed", () => {
-      // 0.05 * 255 = 12.75 -> rounds to 13 = 0x0d
-      expect(rgbToHex(255, 0, 0, 0.05)).toBe("#ff00000d");
-    });
-  });
-});

packages/common/src/colors.ts

@@ -1,117 +1,8 @@
-import tinycolor from "tinycolor2";
+import oc from "open-color";
 
-import { clamp } from "@excalidraw/math";
-import { degreesToRadians } from "@excalidraw/math";
+import type { Merge } from "./utility-types";
 
-import type { Degrees } from "@excalidraw/math";
-
-// ---------------------------------------------------------------------------
-// Dark mode color transformation
-// ---------------------------------------------------------------------------
-
-// Browser-only cache to avoid memory leaks on server
-const DARK_MODE_COLORS_CACHE: Map<string, string> | null =
-  typeof window !== "undefined" ? new Map() : null;
-
-function cssHueRotate(
-  red: number,
-  green: number,
-  blue: number,
-  degrees: Degrees,
-): { r: number; g: number; b: number } {
-  // normalize
-  const r = red / 255;
-  const g = green / 255;
-  const b = blue / 255;
-
-  // Convert degrees to radians
-  const a = degreesToRadians(degrees);
-
-  const c = Math.cos(a);
-  const s = Math.sin(a);
-
-  // rotation matrix
-  const matrix = [
-    0.213 + c * 0.787 - s * 0.213,
-    0.715 - c * 0.715 - s * 0.715,
-    0.072 - c * 0.072 + s * 0.928,
-    0.213 - c * 0.213 + s * 0.143,
-    0.715 + c * 0.285 + s * 0.14,
-    0.072 - c * 0.072 - s * 0.283,
-    0.213 - c * 0.213 - s * 0.787,
-    0.715 - c * 0.715 + s * 0.715,
-    0.072 + c * 0.928 + s * 0.072,
-  ];
-
-  // transform
-  const newR = r * matrix[0] + g * matrix[1] + b * matrix[2];
-  const newG = r * matrix[3] + g * matrix[4] + b * matrix[5];
-  const newB = r * matrix[6] + g * matrix[7] + b * matrix[8];
-
-  // clamp the values to [0, 1] range and convert back to [0, 255]
-  return {
-    r: Math.round(Math.max(0, Math.min(1, newR)) * 255),
-    g: Math.round(Math.max(0, Math.min(1, newG)) * 255),
-    b: Math.round(Math.max(0, Math.min(1, newB)) * 255),
-  };
-}
-
-const cssInvert = (
-  r: number,
-  g: number,
-  b: number,
-  percent: number,
-): { r: number; g: number; b: number } => {
-  const p = clamp(percent, 0, 100) / 100;
-
-  // Function to invert a single color component
-  const invertComponent = (color: number): number => {
-    // Apply the invert formula
-    const inverted = color * (1 - p) + (255 - color) * p;
-    // Round to the nearest integer and clamp to [0, 255]
-    return Math.round(clamp(inverted, 0, 255));
-  };
-
-  // Calculate the inverted RGB components
-  const invertedR = invertComponent(r);
-  const invertedG = invertComponent(g);
-  const invertedB = invertComponent(b);
-
-  return { r: invertedR, g: invertedG, b: invertedB };
-};
-
-export const applyDarkModeFilter = (color: string): string => {
-  const cached = DARK_MODE_COLORS_CACHE?.get(color);
-  if (cached) {
-    return cached;
-  }
-
-  const tc = tinycolor(color);
-  const alpha = tc.getAlpha();
-
-  // order of operations matters
-  // (corresponds to "filter: invert(invertPercent) hue-rotate(hueDegrees)" in css)
-  const rgb = tc.toRgb();
-  const inverted = cssInvert(rgb.r, rgb.g, rgb.b, 93);
-  const rotated = cssHueRotate(
-    inverted.r,
-    inverted.g,
-    inverted.b,
-    180 as Degrees,
-  );
-
-  const result = rgbToHex(rotated.r, rotated.g, rotated.b, alpha);
-
-  if (DARK_MODE_COLORS_CACHE) {
-    DARK_MODE_COLORS_CACHE.set(color, result);
-  }
-
-  return result;
-};
-
-// ---------------------------------------------------------------------------
-// Color palette
-// ---------------------------------------------------------------------------
+export const COLOR_OUTLINE_CONTRAST_THRESHOLD = 240;
 
 // FIXME can't put to utils.ts rn because of circular dependency
 const pick = <R extends Record<string, any>, K extends readonly (keyof R)[]>(
@@ -126,7 +17,15 @@ const pick = <R extends Record<string, any>, K extends readonly (keyof R)[]>(
   }, {} as Pick<R, K[number]>) as Pick<R, K[number]>;
 };
 
+export type ColorPickerColor =
+  | Exclude<keyof oc, "indigo" | "lime">
+  | "transparent"
+  | "bronze";
 export type ColorTuple = readonly [string, string, string, string, string];
+export type ColorPalette = Merge<
+  Record<ColorPickerColor, ColorTuple>,
+  { black: "#1e1e1e"; white: "#ffffff"; transparent: "transparent" }
+>;
 
 // used general type instead of specific type (ColorPalette) to support custom colors
 export type ColorPaletteCustom = { [key: string]: ColorTuple | string };
@@ -139,30 +38,38 @@ export const DEFAULT_CHART_COLOR_INDEX = 4;
 
 export const DEFAULT_ELEMENT_STROKE_COLOR_INDEX = 4;
 export const DEFAULT_ELEMENT_BACKGROUND_COLOR_INDEX = 1;
+export const ELEMENTS_PALETTE_SHADE_INDEXES = [0, 2, 4, 6, 8] as const;
+export const CANVAS_PALETTE_SHADE_INDEXES = [0, 1, 2, 3, 4] as const;
+
+export const getSpecificColorShades = (
+  color: Exclude<
+    ColorPickerColor,
+    "transparent" | "white" | "black" | "bronze"
+  >,
+  indexArr: Readonly<ColorShadesIndexes>,
+) => {
+  return indexArr.map((index) => oc[color][index]) as any as ColorTuple;
+};
 
 export const COLOR_PALETTE = {
   transparent: "transparent",
   black: "#1e1e1e",
   white: "#ffffff",
-  // open-color from https://github.com/yeun/open-color/blob/master/open-color.js
-  // corresponds to indexes [0,2,4,6,8] (weights: 50, 200, 400, 600, 800)
-  gray: ["#f8f9fa", "#e9ecef", "#ced4da", "#868e96", "#343a40"],
-  red: ["#fff5f5", "#ffc9c9", "#ff8787", "#fa5252", "#e03131"],
-  pink: ["#fff0f6", "#fcc2d7", "#f783ac", "#e64980", "#c2255c"],
-  grape: ["#f8f0fc", "#eebefa", "#da77f2", "#be4bdb", "#9c36b5"],
-  violet: ["#f3f0ff", "#d0bfff", "#9775fa", "#7950f2", "#6741d9"],
-  blue: ["#e7f5ff", "#a5d8ff", "#4dabf7", "#228be6", "#1971c2"],
-  cyan: ["#e3fafc", "#99e9f2", "#3bc9db", "#15aabf", "#0c8599"],
-  teal: ["#e6fcf5", "#96f2d7", "#38d9a9", "#12b886", "#099268"],
-  green: ["#ebfbee", "#b2f2bb", "#69db7c", "#40c057", "#2f9e44"],
-  yellow: ["#fff9db", "#ffec99", "#ffd43b", "#fab005", "#f08c00"],
-  orange: ["#fff4e6", "#ffd8a8", "#ffa94d", "#fd7e14", "#e8590c"],
-  // radix bronze shades [3,5,7,9,11]
+  // open-colors
+  gray: getSpecificColorShades("gray", ELEMENTS_PALETTE_SHADE_INDEXES),
+  red: getSpecificColorShades("red", ELEMENTS_PALETTE_SHADE_INDEXES),
+  pink: getSpecificColorShades("pink", ELEMENTS_PALETTE_SHADE_INDEXES),
+  grape: getSpecificColorShades("grape", ELEMENTS_PALETTE_SHADE_INDEXES),
+  violet: getSpecificColorShades("violet", ELEMENTS_PALETTE_SHADE_INDEXES),
+  blue: getSpecificColorShades("blue", ELEMENTS_PALETTE_SHADE_INDEXES),
+  cyan: getSpecificColorShades("cyan", ELEMENTS_PALETTE_SHADE_INDEXES),
+  teal: getSpecificColorShades("teal", ELEMENTS_PALETTE_SHADE_INDEXES),
+  green: getSpecificColorShades("green", ELEMENTS_PALETTE_SHADE_INDEXES),
+  yellow: getSpecificColorShades("yellow", ELEMENTS_PALETTE_SHADE_INDEXES),
+  orange: getSpecificColorShades("orange", ELEMENTS_PALETTE_SHADE_INDEXES),
+  // radix bronze shades 3,5,7,9,11
   bronze: ["#f8f1ee", "#eaddd7", "#d2bab0", "#a18072", "#846358"],
-} as const;
-
-export type ColorPalette = typeof COLOR_PALETTE;
-export type ColorPickerColor = keyof typeof COLOR_PALETTE;
+} as ColorPalette;
 
 const COMMON_ELEMENT_SHADES = pick(COLOR_PALETTE, [
   "cyan",
@@ -177,6 +84,7 @@ const COMMON_ELEMENT_SHADES = pick(COLOR_PALETTE, [
   "red",
 ]);
 
+// -----------------------------------------------------------------------------
 // quick picks defaults
 // -----------------------------------------------------------------------------
 
@@ -211,6 +119,7 @@ export const DEFAULT_CANVAS_BACKGROUND_PICKS = [
   "#fdf8f6",
 ] as ColorTuple;
 
+// -----------------------------------------------------------------------------
 // palette defaults
 // -----------------------------------------------------------------------------
 
@@ -236,120 +145,29 @@ export const DEFAULT_ELEMENT_BACKGROUND_COLOR_PALETTE = {
   ...COMMON_ELEMENT_SHADES,
 } as const;
 
-// color palette helpers
+// -----------------------------------------------------------------------------
+// helpers
 // -----------------------------------------------------------------------------
 
 // !!!MUST BE WITHOUT GRAY, TRANSPARENT AND BLACK!!!
-export const getAllColorsSpecificShade = (index: 0 | 1 | 2 | 3 | 4) => [
-  // 2nd row
-  COLOR_PALETTE.cyan[index],
-  COLOR_PALETTE.blue[index],
-  COLOR_PALETTE.violet[index],
-  COLOR_PALETTE.grape[index],
-  COLOR_PALETTE.pink[index],
+export const getAllColorsSpecificShade = (index: 0 | 1 | 2 | 3 | 4) =>
+  [
+    // 2nd row
+    COLOR_PALETTE.cyan[index],
+    COLOR_PALETTE.blue[index],
+    COLOR_PALETTE.violet[index],
+    COLOR_PALETTE.grape[index],
+    COLOR_PALETTE.pink[index],
 
-  // 3rd row
-  COLOR_PALETTE.green[index],
-  COLOR_PALETTE.teal[index],
-  COLOR_PALETTE.yellow[index],
-  COLOR_PALETTE.orange[index],
-  COLOR_PALETTE.red[index],
-];
+    // 3rd row
+    COLOR_PALETTE.green[index],
+    COLOR_PALETTE.teal[index],
+    COLOR_PALETTE.yellow[index],
+    COLOR_PALETTE.orange[index],
+    COLOR_PALETTE.red[index],
+  ] as const;
+
+export const rgbToHex = (r: number, g: number, b: number) =>
+  `#${((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1)}`;
 
 // -----------------------------------------------------------------------------
-// other helpers
-// -----------------------------------------------------------------------------
-
-export const rgbToHex = (r: number, g: number, b: number, a?: number) => {
-  // (1 << 24) adds 0x1000000 to ensure the hex string is always 7 chars,
-  // then slice(1) removes the leading "1" to get exactly 6 hex digits
-  // e.g. rgb(0,0,0) -> 0x1000000 -> "1000000" -> "000000"
-  const hex6 = `#${((1 << 24) + (r << 16) + (g << 8) + b)
-    .toString(16)
-    .slice(1)}`;
-  if (a !== undefined && a < 1) {
-    // convert alpha from 0-1 float to 0-255 int, then to 2-digit hex
-    // e.g. 0.5 -> 128 -> "80"
-    const alphaHex = Math.round(a * 255)
-      .toString(16)
-      .padStart(2, "0");
-    return `${hex6}${alphaHex}`;
-  }
-  return hex6;
-};
-
-/**
- * @returns #RRGGBB or #RRGGBBAA based on color containing non-opaque alpha,
- *  null if not valid color
- */
-export const colorToHex = (color: string): string | null => {
-  const tc = tinycolor(color);
-  if (!tc.isValid()) {
-    return null;
-  }
-  const { r, g, b, a } = tc.toRgb();
-  return rgbToHex(r, g, b, a);
-};
-
-export const isTransparent = (color: string) => {
-  return tinycolor(color).getAlpha() === 0;
-};
-
-// -----------------------------------------------------------------------------
-// color contract helpers
-// -----------------------------------------------------------------------------
-
-export const COLOR_OUTLINE_CONTRAST_THRESHOLD = 240;
-
-const calculateContrast = (r: number, g: number, b: number): number => {
-  const yiq = (r * 299 + g * 587 + b * 114) / 1000;
-  return yiq;
-};
-
-// YIQ algo, inspiration from https://stackoverflow.com/a/11868398
-export const isColorDark = (color: string, threshold = 160): boolean => {
-  // no color ("") -> assume it default to black
-  if (!color) {
-    return true;
-  }
-
-  if (isTransparent(color)) {
-    return false;
-  }
-
-  const tc = tinycolor(color);
-  if (!tc.isValid()) {
-    // invalid color -> assume it defaults to black
-    return true;
-  }
-
-  const { r, g, b } = tc.toRgb();
-  return calculateContrast(r, g, b) < threshold;
-};
-
-// -----------------------------------------------------------------------------
-// normalization
-// -----------------------------------------------------------------------------
-
-/**
- * tries to keep the input color as-is if it's valid, making minimal adjustments
- * (trimming whitespace or adding `#` to hex colors)
- */
-export const normalizeInputColor = (color: string): string | null => {
-  color = color.trim();
-  if (isTransparent(color)) {
-    return color;
-  }
-
-  const tc = tinycolor(color);
-  if (tc.isValid()) {
-    // testing for `#` first fixes a bug on Electron (more specfically, an
-    // Obsidian popout window), where a hex color without `#` is considered valid
-    if (["hex", "hex8"].includes(tc.getFormat()) && !color.startsWith("#")) {
-      return `#${color}`;
-    }
-    return color;
-  }
-
-  return null;
-};

packages/common/src/constants.ts

@@ -6,6 +6,32 @@ import type { AppProps, AppState } from "@excalidraw/excalidraw/types";
 
 import { COLOR_PALETTE } from "./colors";
 
+export const isDarwin = /Mac|iPod|iPhone|iPad/.test(navigator.platform);
+export const isWindows = /^Win/.test(navigator.platform);
+export const isAndroid = /\b(android)\b/i.test(navigator.userAgent);
+export const isFirefox =
+  typeof window !== "undefined" &&
+  "netscape" in window &&
+  navigator.userAgent.indexOf("rv:") > 1 &&
+  navigator.userAgent.indexOf("Gecko") > 1;
+export const isChrome = navigator.userAgent.indexOf("Chrome") !== -1;
+export const isSafari =
+  !isChrome && navigator.userAgent.indexOf("Safari") !== -1;
+export const isIOS =
+  /iPad|iPhone/i.test(navigator.platform) ||
+  // iPadOS 13+
+  (navigator.userAgent.includes("Mac") && "ontouchend" in document);
+// keeping function so it can be mocked in test
+export const isBrave = () =>
+  (navigator as any).brave?.isBrave?.name === "isBrave";
+
+export const isMobile =
+  isIOS ||
+  /android|webos|ipod|blackberry|iemobile|opera mini/i.test(
+    navigator.userAgent,
+  ) ||
+  /android|ios|ipod|blackberry|windows phone/i.test(navigator.platform);
+
 export const supportsResizeObserver =
   typeof window !== "undefined" && "ResizeObserver" in window;
 
@@ -105,17 +131,8 @@ export const CLASSES = {
   SEARCH_MENU_INPUT_WRAPPER: "layer-ui__search-inputWrapper",
   CONVERT_ELEMENT_TYPE_POPUP: "ConvertElementTypePopup",
   SHAPE_ACTIONS_THEME_SCOPE: "shape-actions-theme-scope",
-  FRAME_NAME: "frame-name",
-  DROPDOWN_MENU_EVENT_WRAPPER: "dropdown-menu-event-wrapper",
 };
 
-export const FONT_SIZES = {
-  sm: 16,
-  md: 20,
-  lg: 28,
-  xl: 36,
-} as const;
-
 export const CJK_HAND_DRAWN_FALLBACK_FONT = "Xiaolai";
 export const WINDOWS_EMOJI_FALLBACK_FONT = "Segoe UI Emoji";
 
@@ -191,8 +208,6 @@ export const THEME = {
   DARK: "dark",
 } as const;
 
-export const DARK_THEME_FILTER = "invert(93%) hue-rotate(180deg)";
-
 export const FRAME_STYLE = {
   strokeColor: "#bbb" as ExcalidrawElement["strokeColor"],
   strokeWidth: 2 as ExcalidrawElement["strokeWidth"],
@@ -252,7 +267,6 @@ export const STRING_MIME_TYPES = {
   json: "application/json",
   // excalidraw data
   excalidraw: "application/vnd.excalidraw+json",
-  excalidrawClipboard: "application/vnd.excalidraw.clipboard+json",
   // LEGACY: fully-qualified library JSON data
   excalidrawlib: "application/vnd.excalidrawlib+json",
   // list of excalidraw library item ids
@@ -309,6 +323,9 @@ export const IDLE_THRESHOLD = 60_000;
 // Report a user active each ACTIVE_THRESHOLD milliseconds
 export const ACTIVE_THRESHOLD = 3_000;
 
+// duplicates --theme-filter, should be removed soon
+export const THEME_FILTER = "invert(93%) hue-rotate(180deg)";
+
 export const URL_QUERY_KEYS = {
   addLibrary: "addLibrary",
 } as const;
@@ -332,6 +349,26 @@ export const DEFAULT_UI_OPTIONS: AppProps["UIOptions"] = {
   },
 };
 
+// breakpoints
+// -----------------------------------------------------------------------------
+
+// mobile: up to 699px
+export const MQ_MAX_MOBILE = 599;
+
+export const MQ_MAX_WIDTH_LANDSCAPE = 1000;
+export const MQ_MAX_HEIGHT_LANDSCAPE = 500;
+
+// tablets
+export const MQ_MIN_TABLET = MQ_MAX_MOBILE + 1; // lower bound (excludes phones)
+export const MQ_MAX_TABLET = 1400; // upper bound (excludes laptops/desktops)
+
+// desktop/laptop
+export const MQ_MIN_WIDTH_DESKTOP = 1440;
+
+// sidebar
+export const MQ_RIGHT_SIDEBAR_MIN_WIDTH = 1229;
+// -----------------------------------------------------------------------------
+
 export const MAX_DECIMALS_FOR_SVG_EXPORT = 2;
 
 export const EXPORT_SCALES = [1, 2, 3];
@@ -405,8 +442,9 @@ export const ROUGHNESS = {
 
 export const STROKE_WIDTH = {
   thin: 1,
-  bold: 2,
-  extraBold: 4,
+  medium: 2,
+  bold: 4,
+  extraBold: 8,
 } as const;
 
 export const DEFAULT_ELEMENT_PROPS: {
@@ -422,7 +460,7 @@ export const DEFAULT_ELEMENT_PROPS: {
   strokeColor: COLOR_PALETTE.black,
   backgroundColor: COLOR_PALETTE.transparent,
   fillStyle: "solid",
-  strokeWidth: 2,
+  strokeWidth: STROKE_WIDTH.medium,
   strokeStyle: "solid",
   roughness: ROUGHNESS.artist,
   opacity: 100,
@@ -507,8 +545,6 @@ export const LINE_POLYGON_POINT_MERGE_DISTANCE = 20;
 
 export const DOUBLE_TAP_POSITION_THRESHOLD = 35;
 
-export const BIND_MODE_TIMEOUT = 700; // ms
-
 // glass background for mobile action buttons
 export const MOBILE_ACTION_BUTTON_BG = {
   background: "var(--mobile-action-button-bg)",

packages/common/src/editorInterface.ts

@@ -1,222 +0,0 @@
-export type StylesPanelMode = "compact" | "full" | "mobile";
-
-export type EditorInterface = Readonly<{
-  formFactor: "phone" | "tablet" | "desktop";
-  desktopUIMode: "compact" | "full";
-  userAgent: Readonly<{
-    isMobileDevice: boolean;
-    platform: "ios" | "android" | "other" | "unknown";
-  }>;
-  isTouchScreen: boolean;
-  canFitSidebar: boolean;
-  isLandscape: boolean;
-}>;
-
-// storage key
-const DESKTOP_UI_MODE_STORAGE_KEY = "excalidraw.desktopUIMode";
-
-// breakpoints
-export const MQ_MAX_MOBILE = 599;
-
-export const MQ_MAX_WIDTH_LANDSCAPE = 1000;
-export const MQ_MAX_HEIGHT_LANDSCAPE = 500;
-
-// tablets
-export const MQ_MIN_TABLET = MQ_MAX_MOBILE + 1; // lower bound (excludes phones)
-export const MQ_MAX_TABLET = 1180; // ipad air
-
-// desktop/laptop (NOTE: not used for form factor detection)
-export const MQ_MIN_WIDTH_DESKTOP = 1440;
-
-// sidebar
-export const MQ_RIGHT_SIDEBAR_MIN_WIDTH = 1229;
-
-// -----------------------------------------------------------------------------
-
-// user agent detections
-export const isDarwin = /Mac|iPod|iPhone|iPad/.test(navigator.platform);
-export const isWindows = /^Win/.test(navigator.platform);
-export const isAndroid = /\b(android)\b/i.test(navigator.userAgent);
-export const isFirefox =
-  typeof window !== "undefined" &&
-  "netscape" in window &&
-  navigator.userAgent.indexOf("rv:") > 1 &&
-  navigator.userAgent.indexOf("Gecko") > 1;
-export const isChrome = navigator.userAgent.indexOf("Chrome") !== -1;
-export const isSafari =
-  !isChrome && navigator.userAgent.indexOf("Safari") !== -1;
-export const isIOS =
-  /iPad|iPhone/i.test(navigator.platform) ||
-  // iPadOS 13+
-  (navigator.userAgent.includes("Mac") && "ontouchend" in document);
-// keeping function so it can be mocked in test
-export const isBrave = () =>
-  (navigator as any).brave?.isBrave?.name === "isBrave";
-
-// export const isMobile =
-//   isIOS ||
-//   /android|webos|ipod|blackberry|iemobile|opera mini/i.test(
-//     navigator.userAgent,
-//   ) ||
-//   /android|ios|ipod|blackberry|windows phone/i.test(navigator.platform);
-
-// utilities
-export const isMobileBreakpoint = (width: number, height: number) => {
-  return (
-    width <= MQ_MAX_MOBILE ||
-    (height < MQ_MAX_HEIGHT_LANDSCAPE && width < MQ_MAX_WIDTH_LANDSCAPE)
-  );
-};
-
-export const isTabletBreakpoint = (
-  editorWidth: number,
-  editorHeight: number,
-) => {
-  const minSide = Math.min(editorWidth, editorHeight);
-  const maxSide = Math.max(editorWidth, editorHeight);
-
-  return minSide >= MQ_MIN_TABLET && maxSide <= MQ_MAX_TABLET;
-};
-
-const isMobileOrTablet = (): boolean => {
-  const ua = navigator.userAgent || "";
-  const platform = navigator.platform || "";
-  const uaData = (navigator as any).userAgentData as
-    | { mobile?: boolean; platform?: string }
-    | undefined;
-
-  // --- 1) chromium: prefer ua client hints -------------------------------
-  if (uaData) {
-    const plat = (uaData.platform || "").toLowerCase();
-    const isDesktopOS =
-      plat === "windows" ||
-      plat === "macos" ||
-      plat === "linux" ||
-      plat === "chrome os";
-    if (uaData.mobile === true) {
-      return true;
-    }
-    if (uaData.mobile === false && plat === "android") {
-      const looksTouchTablet =
-        matchMedia?.("(hover: none)").matches &&
-        matchMedia?.("(pointer: coarse)").matches;
-      return looksTouchTablet;
-    }
-    if (isDesktopOS) {
-      return false;
-    }
-  }
-
-  // --- 2) ios (includes ipad) --------------------------------------------
-  if (isIOS) {
-    return true;
-  }
-
-  // --- 3) android legacy ua fallback -------------------------------------
-  if (isAndroid) {
-    const isAndroidPhone = /Mobile/i.test(ua);
-    const isAndroidTablet = !isAndroidPhone;
-    if (isAndroidPhone || isAndroidTablet) {
-      const looksTouchTablet =
-        matchMedia?.("(hover: none)").matches &&
-        matchMedia?.("(pointer: coarse)").matches;
-      return looksTouchTablet;
-    }
-  }
-
-  // --- 4) last resort desktop exclusion ----------------------------------
-  const looksDesktopPlatform =
-    /Win|Linux|CrOS|Mac/.test(platform) ||
-    /Windows NT|X11|CrOS|Macintosh/.test(ua);
-  if (looksDesktopPlatform) {
-    return false;
-  }
-  return false;
-};
-
-export const getFormFactor = (
-  editorWidth: number,
-  editorHeight: number,
-): EditorInterface["formFactor"] => {
-  if (isMobileBreakpoint(editorWidth, editorHeight)) {
-    return "phone";
-  }
-
-  if (isTabletBreakpoint(editorWidth, editorHeight)) {
-    return "tablet";
-  }
-
-  return "desktop";
-};
-
-export const deriveStylesPanelMode = (
-  editorInterface: EditorInterface,
-): StylesPanelMode => {
-  if (editorInterface.formFactor === "phone") {
-    return "mobile";
-  }
-
-  if (editorInterface.formFactor === "tablet") {
-    return "compact";
-  }
-
-  return editorInterface.desktopUIMode;
-};
-
-export const createUserAgentDescriptor = (
-  userAgentString: string,
-): EditorInterface["userAgent"] => {
-  const normalizedUA = userAgentString ?? "";
-  let platform: EditorInterface["userAgent"]["platform"] = "unknown";
-
-  if (isIOS) {
-    platform = "ios";
-  } else if (isAndroid) {
-    platform = "android";
-  } else if (normalizedUA) {
-    platform = "other";
-  }
-
-  return {
-    isMobileDevice: isMobileOrTablet(),
-    platform,
-  } as const;
-};
-
-export const loadDesktopUIModePreference = () => {
-  if (typeof window === "undefined") {
-    return null;
-  }
-
-  try {
-    const stored = window.localStorage.getItem(DESKTOP_UI_MODE_STORAGE_KEY);
-    if (stored === "compact" || stored === "full") {
-      return stored as EditorInterface["desktopUIMode"];
-    }
-  } catch (error) {
-    // ignore storage access issues (e.g., Safari private mode)
-  }
-
-  return null;
-};
-
-const persistDesktopUIMode = (mode: EditorInterface["desktopUIMode"]) => {
-  if (typeof window === "undefined") {
-    return;
-  }
-  try {
-    window.localStorage.setItem(DESKTOP_UI_MODE_STORAGE_KEY, mode);
-  } catch (error) {
-    // ignore storage access issues (e.g., Safari private mode)
-  }
-};
-
-export const setDesktopUIMode = (mode: EditorInterface["desktopUIMode"]) => {
-  if (mode !== "compact" && mode !== "full") {
-    return;
-  }
-
-  persistDesktopUIMode(mode);
-
-  return mode;
-};

packages/common/src/index.ts

@@ -1,5 +1,4 @@
 export * from "./binary-heap";
-export * from "./bounds";
 export * from "./colors";
 export * from "./constants";
 export * from "./font-metadata";
@@ -11,7 +10,3 @@ export * from "./random";
 export * from "./url";
 export * from "./utils";
 export * from "./emitter";
-export * from "./appEventBus";
-export * from "./editorInterface";
-export * from "./versionedSnapshotStore";
-export { Debug } from "../debug";

packages/common/src/keys.ts

@@ -1,4 +1,4 @@
-import { isDarwin } from "./editorInterface";
+import { isDarwin } from "./constants";
 
 import type { ValueOf } from "./utility-types";
 

packages/common/src/utils.test.ts

@@ -3,12 +3,6 @@ import {
   mapFind,
   reduceToCommonValue,
 } from "@excalidraw/common";
-import { vi } from "vitest";
-
-// Import directly to avoid the @excalidraw/common throttleRAF mock from setupTests.ts.
-import { throttleRAF } from "./utils";
-
-type RafCallback = FrameRequestCallback;
 
 describe("@excalidraw/common/utils", () => {
   describe("isTransparent()", () => {
@@ -85,87 +79,4 @@ describe("@excalidraw/common/utils", () => {
       expect(mapFind([1, 2], () => null)).toBe(undefined);
     });
   });
-
-  describe("throttleRAF()", () => {
-    let frameCallbacks: Map<number, RafCallback>;
-    let nextFrameId: number;
-
-    const runScheduledFrame = (timestamp = 16) => {
-      const callbacks = [...frameCallbacks.values()];
-      frameCallbacks.clear();
-      callbacks.forEach((callback) => callback(timestamp));
-    };
-
-    beforeEach(() => {
-      frameCallbacks = new Map();
-      nextFrameId = 0;
-
-      vi.spyOn(window, "requestAnimationFrame").mockImplementation(
-        (callback) => {
-          const frameId = ++nextFrameId;
-          frameCallbacks.set(frameId, callback);
-          return frameId;
-        },
-      );
-
-      vi.spyOn(window, "cancelAnimationFrame").mockImplementation((frameId) => {
-        frameCallbacks.delete(frameId);
-      });
-    });
-
-    afterEach(() => {
-      vi.restoreAllMocks();
-    });
-
-    it("should invoke the callback with the last args from the same frame", () => {
-      const fn = vi.fn();
-      const throttled = throttleRAF(fn);
-
-      throttled("first", 1);
-      throttled("second", 2);
-      throttled("last", 3);
-
-      expect(fn).not.toHaveBeenCalled();
-      expect(window.requestAnimationFrame).toHaveBeenCalledTimes(1);
-
-      runScheduledFrame();
-
-      expect(fn).toHaveBeenCalledTimes(1);
-      expect(fn).toHaveBeenCalledWith("last", 3);
-    });
-
-    it("should flush the pending callback immediately", () => {
-      const fn = vi.fn();
-      const throttled = throttleRAF(fn);
-
-      throttled("first");
-      throttled("last");
-
-      throttled.flush();
-
-      expect(window.cancelAnimationFrame).toHaveBeenCalledTimes(1);
-      expect(fn).toHaveBeenCalledTimes(1);
-      expect(fn).toHaveBeenCalledWith("last");
-
-      runScheduledFrame();
-
-      expect(fn).toHaveBeenCalledTimes(1);
-    });
-
-    it("should cancel the pending callback", () => {
-      const fn = vi.fn();
-      const throttled = throttleRAF(fn);
-
-      throttled("first");
-      throttled("last");
-
-      throttled.cancel();
-
-      expect(window.cancelAnimationFrame).toHaveBeenCalledTimes(1);
-
-      runScheduledFrame();
-
-      expect(fn).not.toHaveBeenCalled();
-    });
-  });
 });

packages/common/src/utils.ts

@@ -1,8 +1,10 @@
 import { average } from "@excalidraw/math";
 
-import type { GlobalCoord } from "@excalidraw/math";
-
-import type { FontFamilyValues, FontString } from "@excalidraw/element/types";
+import type {
+  ExcalidrawBindableElement,
+  FontFamilyValues,
+  FontString,
+} from "@excalidraw/element/types";
 
 import type {
   ActiveTool,
@@ -12,11 +14,14 @@ import type {
   Zoom,
 } from "@excalidraw/excalidraw/types";
 
+import { COLOR_PALETTE } from "./colors";
 import {
   DEFAULT_VERSION,
   ENV,
   FONT_FAMILY,
   getFontFamilyFallbacks,
+  isAndroid,
+  isIOS,
   WINDOWS_EMOJI_FALLBACK_FONT,
 } from "./constants";
 
@@ -88,8 +93,7 @@ export const isWritableElement = (
     (target.type === "text" ||
       target.type === "number" ||
       target.type === "password" ||
-      target.type === "search")) ||
-  (target instanceof HTMLElement && target.closest(".cm-editor") !== null);
+      target.type === "search"));
 
 export const getFontFamilyString = ({
   fontFamily,
@@ -151,27 +155,38 @@ export const debounce = <T extends any[]>(
   return ret;
 };
 
-// throttle callback to execute once per animation frame using the latest args
-export const throttleRAF = <T extends any[]>(fn: (...args: T) => void) => {
+// throttle callback to execute once per animation frame
+export const throttleRAF = <T extends any[]>(
+  fn: (...args: T) => void,
+  opts?: { trailing?: boolean },
+) => {
   let timerId: number | null = null;
   let lastArgs: T | null = null;
+  let lastArgsTrailing: T | null = null;
 
-  const scheduleFunc = () => {
+  const scheduleFunc = (args: T) => {
     timerId = window.requestAnimationFrame(() => {
       timerId = null;
-      const args = lastArgs;
+      fn(...args);
       lastArgs = null;
-
-      if (args) {
-        fn(...args);
+      if (lastArgsTrailing) {
+        lastArgs = lastArgsTrailing;
+        lastArgsTrailing = null;
+        scheduleFunc(lastArgs);
       }
     });
   };
 
   const ret = (...args: T) => {
+    if (isTestEnv()) {
+      fn(...args);
+      return;
+    }
     lastArgs = args;
     if (timerId === null) {
-      scheduleFunc();
+      scheduleFunc(lastArgs);
+    } else if (opts?.trailing) {
+      lastArgsTrailing = args;
     }
   };
   ret.flush = () => {
@@ -180,12 +195,12 @@ export const throttleRAF = <T extends any[]>(fn: (...args: T) => void) => {
       timerId = null;
     }
     if (lastArgs) {
-      fn(...lastArgs);
-      lastArgs = null;
+      fn(...(lastArgsTrailing || lastArgs));
+      lastArgs = lastArgsTrailing = null;
     }
   };
   ret.cancel = () => {
-    lastArgs = null;
+    lastArgs = lastArgsTrailing = null;
     if (timerId !== null) {
       cancelAnimationFrame(timerId);
       timerId = null;
@@ -369,10 +384,6 @@ export const removeSelection = () => {
 
 export const distance = (x: number, y: number) => Math.abs(x - y);
 
-export const isSelectionLikeTool = (type: ToolType | "custom") => {
-  return type === "selection" || type === "lasso";
-};
-
 export const updateActiveTool = (
   appState: Pick<AppState, "activeTool">,
   data: ((
@@ -433,7 +444,7 @@ export const viewportCoordsToSceneCoords = (
   const x = (clientX - offsetLeft) / zoom.value - scrollX;
   const y = (clientY - offsetTop) / zoom.value - scrollY;
 
-  return { x, y } as GlobalCoord;
+  return { x, y };
 };
 
 export const sceneCoordsToViewportCoords = (
@@ -539,6 +550,19 @@ export const mapFind = <T, K>(
   return undefined;
 };
 
+export const isTransparent = (color: string) => {
+  const isRGBTransparent = color.length === 5 && color.substr(4, 1) === "0";
+  const isRRGGBBTransparent = color.length === 9 && color.substr(7, 2) === "00";
+  return (
+    isRGBTransparent ||
+    isRRGGBBTransparent ||
+    color === COLOR_PALETTE.transparent
+  );
+};
+
+export const isBindingFallthroughEnabled = (el: ExcalidrawBindableElement) =>
+  el.fillStyle !== "solid" || isTransparent(el.backgroundColor);
+
 export type ResolvablePromise<T> = Promise<T> & {
   resolve: [T] extends [undefined]
     ? (value?: MaybePromise<Awaited<T>>) => void
@@ -1138,69 +1162,39 @@ export const normalizeEOL = (str: string) => {
 };
 
 // -----------------------------------------------------------------------------
-export type HasBrand<T> = {
+type HasBrand<T> = {
   // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  [K in keyof T]: K extends `~brand${infer _}` | "_brand" ? true : never;
+  [K in keyof T]: K extends `~brand${infer _}` ? true : never;
 }[keyof T];
 
 type RemoveAllBrands<T> = HasBrand<T> extends true
   ? {
       // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      [K in keyof T as K extends `~brand~${infer _}` | "_brand"
-        ? never
-        : K]: T[K];
+      [K in keyof T as K extends `~brand~${infer _}` ? never : K]: T[K];
     }
-  : T;
+  : never;
 
-// For accepting values - uses loose matching for branded types
-// Preserves readonly modifier: mutable array requires mutable input
-type UnbrandForValue<T> = T extends Map<infer E, infer F>
-  ? Map<UnbrandForValue<E>, UnbrandForValue<F>>
+// adapted from https://github.com/colinhacks/zod/discussions/1994#discussioncomment-6068940
+// currently does not cover all types (e.g. tuples, promises...)
+type Unbrand<T> = T extends Map<infer E, infer F>
+  ? Map<E, F>
   : T extends Set<infer E>
-  ? Set<UnbrandForValue<E>>
-  : T extends readonly any[]
-  ? T extends any[]
-    ? unknown[] // mutable array - require mutable input
-    : readonly unknown[] // readonly array - accept readonly input
+  ? Set<E>
+  : T extends Array<infer E>
+  ? Array<E>
   : RemoveAllBrands<T>;
 
-// For return types - preserves array element unbranding
-export type Unbrand<T> = T extends Map<infer E, infer F>
-  ? Map<Unbrand<E>, Unbrand<F>>
-  : T extends Set<infer E>
-  ? Set<Unbrand<E>>
-  : T extends readonly (infer E)[]
-  ? Array<Unbrand<E>>
-  : RemoveAllBrands<T>;
-
-export type CombineBrands<BrandedType, CurrentType> =
-  BrandedType extends readonly (infer BE)[]
-    ? CurrentType extends readonly (infer CE)[]
-      ? Array<CE & BE>
-      : CurrentType & BrandedType
-    : CurrentType & BrandedType;
-
-export type CombineBrandsIfNeeded<T, Required> = [T] extends [Required]
-  ? T[]
-  : HasBrand<T> extends true
-  ? CombineBrands<T, Required>[]
-  : Required[];
-
 /**
  * Makes type into a branded type, ensuring that value is assignable to
- * the base unbranded type. Optionally you can explicitly supply current value
+ * the base ubranded type. Optionally you can explicitly supply current value
  * type to combine both (useful for composite branded types. Make sure you
  * compose branded types which are not composite themselves.)
  */
-export function toBrandedType<BrandedType>(
-  value: UnbrandForValue<BrandedType>,
-): BrandedType;
-export function toBrandedType<BrandedType, CurrentType>(
-  value: CurrentType,
-): CombineBrands<BrandedType, CurrentType>;
-export function toBrandedType(value: unknown) {
-  return value;
-}
+export const toBrandedType = <BrandedType, CurrentType = BrandedType>(
+  value: Unbrand<BrandedType>,
+) => {
+  return value as CurrentType & BrandedType;
+};
 
 // -----------------------------------------------------------------------------
 
@@ -1279,53 +1273,58 @@ export const reduceToCommonValue = <T, R = T>(
   return commonValue;
 };
 
-type FEATURE_FLAGS = {
-  COMPLEX_BINDINGS: boolean;
-};
+export const isMobileOrTablet = (): boolean => {
+  const ua = navigator.userAgent || "";
+  const platform = navigator.platform || "";
+  const uaData = (navigator as any).userAgentData as
+    | { mobile?: boolean; platform?: string }
+    | undefined;
 
-const FEATURE_FLAGS_STORAGE_KEY = "excalidraw-feature-flags";
-const DEFAULT_FEATURE_FLAGS: FEATURE_FLAGS = {
-  COMPLEX_BINDINGS: false,
-};
-let featureFlags: FEATURE_FLAGS | null = null;
-
-export const getFeatureFlag = <F extends keyof FEATURE_FLAGS>(
-  flag: F,
-): FEATURE_FLAGS[F] => {
-  if (!featureFlags) {
-    try {
-      const serializedFlags = localStorage.getItem(FEATURE_FLAGS_STORAGE_KEY);
-      if (serializedFlags) {
-        const flags = JSON.parse(serializedFlags);
-        featureFlags = flags ?? DEFAULT_FEATURE_FLAGS;
-      }
-    } catch {}
+  // --- 1) chromium: prefer ua client hints -------------------------------
+  if (uaData) {
+    const plat = (uaData.platform || "").toLowerCase();
+    const isDesktopOS =
+      plat === "windows" ||
+      plat === "macos" ||
+      plat === "linux" ||
+      plat === "chrome os";
+    if (uaData.mobile === true) {
+      return true;
+    }
+    if (uaData.mobile === false && plat === "android") {
+      const looksTouchTablet =
+        matchMedia?.("(hover: none)").matches &&
+        matchMedia?.("(pointer: coarse)").matches;
+      return looksTouchTablet;
+    }
+    if (isDesktopOS) {
+      return false;
+    }
   }
 
-  return (featureFlags || DEFAULT_FEATURE_FLAGS)[flag];
-};
-
-export const setFeatureFlag = <F extends keyof FEATURE_FLAGS>(
-  flag: F,
-  value: FEATURE_FLAGS[F],
-) => {
-  try {
-    featureFlags = {
-      ...(featureFlags || DEFAULT_FEATURE_FLAGS),
-      [flag]: value,
-    };
-    localStorage.setItem(
-      FEATURE_FLAGS_STORAGE_KEY,
-      JSON.stringify(featureFlags),
-    );
-  } catch (e) {
-    console.error("unable to set feature flag", e);
+  // --- 2) ios (includes ipad) --------------------------------------------
+  if (isIOS) {
+    return true;
   }
-};
 
-export const oneOf = <N extends string | number | symbol | null, H extends N>(
-  needle: N,
-  haystack: readonly H[],
-): needle is H => {
-  return haystack.includes(needle as any);
+  // --- 3) android legacy ua fallback -------------------------------------
+  if (isAndroid) {
+    const isAndroidPhone = /Mobile/i.test(ua);
+    const isAndroidTablet = !isAndroidPhone;
+    if (isAndroidPhone || isAndroidTablet) {
+      const looksTouchTablet =
+        matchMedia?.("(hover: none)").matches &&
+        matchMedia?.("(pointer: coarse)").matches;
+      return looksTouchTablet;
+    }
+  }
+
+  // --- 4) last resort desktop exclusion ----------------------------------
+  const looksDesktopPlatform =
+    /Win|Linux|CrOS|Mac/.test(platform) ||
+    /Windows NT|X11|CrOS|Macintosh/.test(ua);
+  if (looksDesktopPlatform) {
+    return false;
+  }
+  return false;
 };

packages/common/src/versionedSnapshotStore.ts

@@ -1,70 +0,0 @@
-export type VersionedSnapshot<T> = Readonly<{
-  version: number;
-  value: T;
-}>;
-
-export class VersionedSnapshotStore<T> {
-  private version = 0;
-  private value: T;
-  private readonly waiters = new Set<
-    (snapshot: VersionedSnapshot<T>) => void
-  >();
-  private readonly subscribers = new Set<
-    (snapshot: VersionedSnapshot<T>) => void
-  >();
-
-  constructor(
-    initialValue: T,
-    private readonly isEqual: (prev: T, next: T) => boolean = Object.is,
-  ) {
-    this.value = initialValue;
-  }
-
-  public getSnapshot(): VersionedSnapshot<T> {
-    return { version: this.version, value: this.value };
-  }
-
-  public set(nextValue: T): boolean {
-    if (this.isEqual(this.value, nextValue)) {
-      return false;
-    }
-
-    this.value = nextValue;
-    this.version += 1;
-
-    const snapshot = this.getSnapshot();
-
-    for (const subscriber of this.subscribers) {
-      subscriber(snapshot);
-    }
-    for (const waiter of this.waiters) {
-      waiter(snapshot);
-    }
-    this.waiters.clear();
-
-    return true;
-  }
-
-  public update(updater: (prev: T) => T): boolean {
-    return this.set(updater(this.value));
-  }
-
-  public subscribe(
-    subscriber: (snapshot: VersionedSnapshot<T>) => void,
-  ): () => void {
-    this.subscribers.add(subscriber);
-    return () => {
-      this.subscribers.delete(subscriber);
-    };
-  }
-
-  public pull(sinceVersion = -1): Promise<VersionedSnapshot<T>> {
-    if (this.version !== sinceVersion) {
-      return Promise.resolve(this.getSnapshot());
-    }
-
-    return new Promise((resolve) => {
-      this.waiters.add(resolve);
-    });
-  }
-}

packages/element/package.json

@@ -17,12 +17,6 @@
       "development": "./dist/dev/index.js",
       "production": "./dist/prod/index.js",
       "default": "./dist/prod/index.js"
-    },
-    "./visualdebug": {
-      "types": "./dist/types/element/src/visualdebug.d.ts",
-      "development": "./dist/dev/visualdebug.js",
-      "production": "./dist/prod/visualdebug.js",
-      "default": "./dist/prod/visualdebug.js"
     }
   },
   "files": [

packages/element/src/Scene.ts

@@ -438,8 +438,6 @@ export class Scene {
     options: {
       informMutation: boolean;
       isDragging: boolean;
-      isBindingEnabled?: boolean;
-      isMidpointSnappingEnabled?: boolean;
     } = {
       informMutation: true,
       isDragging: false,

packages/element/src/arrowheads.ts

@@ -1,32 +0,0 @@
-import type { Arrowhead, AnyArrowhead } from "./types";
-
-export const normalizeArrowhead = (
-  arrowhead: AnyArrowhead | null | undefined,
-): Arrowhead | null => {
-  switch (arrowhead) {
-    case undefined:
-    case null:
-      return null;
-    case "dot":
-      return "circle";
-    case "crowfoot_one":
-      return "cardinality_one";
-    case "crowfoot_many":
-      return "cardinality_many";
-    case "crowfoot_one_or_many":
-      return "cardinality_one_or_many";
-    default:
-      return arrowhead;
-  }
-};
-
-export const getArrowheadForPicker = (
-  arrowhead: AnyArrowhead | null | undefined,
-): Arrowhead | null => {
-  const normalizedArrowhead = normalizeArrowhead(arrowhead);
-  if (normalizedArrowhead === null) {
-    return null;
-  }
-
-  return normalizedArrowhead;
-};

packages/element/src/arrows/focus.ts

@@ -1,558 +0,0 @@
-import { pointDistance, pointFrom, type GlobalPoint } from "@excalidraw/math";
-import { invariant } from "@excalidraw/common";
-
-import type { AppState, NullableGridSize } from "@excalidraw/excalidraw/types";
-
-import {
-  bindBindingElement,
-  calculateFixedPointForNonElbowArrowBinding,
-  FOCUS_POINT_SIZE,
-  getBindingGap,
-  getGlobalFixedPointForBindableElement,
-  isBindingEnabled,
-  maxBindingDistance_simple,
-  unbindBindingElement,
-  updateBoundPoint,
-} from "../binding";
-import {
-  isBindableElement,
-  isBindingElement,
-  isElbowArrow,
-} from "../typeChecks";
-import { LinearElementEditor } from "../linearElementEditor";
-import { getHoveredElementForFocusPoint, hitElementItself } from "../collision";
-import { moveArrowAboveBindable } from "../zindex";
-
-import type {
-  ElementsMap,
-  ExcalidrawArrowElement,
-  ExcalidrawBindableElement,
-  NonDeletedSceneElementsMap,
-  PointsPositionUpdates,
-} from "../types";
-
-import type { Scene } from "../Scene";
-
-export const isFocusPointVisible = (
-  focusPoint: GlobalPoint,
-  arrow: ExcalidrawArrowElement,
-  bindableElement: ExcalidrawBindableElement,
-  elementsMap: ElementsMap,
-  appState: {
-    isBindingEnabled: AppState["isBindingEnabled"];
-    zoom: AppState["zoom"];
-  },
-  startOrEnd: "start" | "end",
-  ignoreOverlap = false,
-): boolean => {
-  // No focus point management for elbow arrows, because elbow arrows
-  // always have their focus point at the arrow point itself
-  if (
-    isElbowArrow(arrow) ||
-    !isBindingEnabled(appState) ||
-    arrow.points.length !== 2
-  ) {
-    return false;
-  }
-
-  // Avoid showing the focus point indicator if the focus point is essentially
-  // on top of the arrow point it belongs to itself, if not ignoring specifically
-  if (!ignoreOverlap) {
-    const associatedPointIdx =
-      arrow.startBinding?.elementId === bindableElement.id
-        ? 0
-        : arrow.points.length - 1;
-    const associatedArrowPoint =
-      LinearElementEditor.getPointAtIndexGlobalCoordinates(
-        arrow,
-        associatedPointIdx,
-        elementsMap,
-      );
-
-    if (
-      pointDistance(focusPoint, associatedArrowPoint) <
-      (FOCUS_POINT_SIZE * 1.5) / appState.zoom.value
-    ) {
-      return false;
-    }
-  }
-
-  const arrowPoint = LinearElementEditor.getPointAtIndexGlobalCoordinates(
-    arrow,
-    startOrEnd === "end" ? arrow.points.length - 1 : 0,
-    elementsMap,
-  );
-
-  // Check if the focus point is within the element's shape bounds
-  // Endpoint dragging takes precedence
-  return (
-    pointDistance(focusPoint, arrowPoint) >=
-      (FOCUS_POINT_SIZE * 1.5) / appState.zoom.value &&
-    hitElementItself({
-      element: bindableElement,
-      elementsMap,
-      point: focusPoint,
-      threshold: getBindingGap(bindableElement, arrow),
-      overrideShouldTestInside: true,
-    })
-  );
-};
-
-// Updates the arrow endpoints in "orbit" configuration
-const focusPointUpdate = (
-  arrow: ExcalidrawArrowElement,
-  bindableElement: ExcalidrawBindableElement | null,
-  isStartBinding: boolean,
-  elementsMap: NonDeletedSceneElementsMap,
-  scene: Scene,
-  appState: AppState,
-  switchToInsideBinding: boolean,
-) => {
-  const pointUpdates = new Map();
-
-  const bindingField = isStartBinding ? "startBinding" : "endBinding";
-  const adjacentBindingField = isStartBinding ? "endBinding" : "startBinding";
-  let currentBinding = arrow[bindingField];
-  let adjacentBinding = arrow[adjacentBindingField];
-
-  // Update the dragged focus point related end
-  if (currentBinding && bindableElement) {
-    // Update the targeted bindings
-    const boundToSameElement =
-      bindableElement &&
-      adjacentBinding &&
-      currentBinding.elementId === adjacentBinding.elementId;
-    if (switchToInsideBinding || boundToSameElement) {
-      currentBinding = {
-        ...currentBinding,
-        mode: "inside",
-      };
-    } else {
-      currentBinding = {
-        ...currentBinding,
-        mode: "orbit",
-      };
-    }
-
-    const pointIndex = isStartBinding ? 0 : arrow.points.length - 1;
-    const newPoint = updateBoundPoint(
-      arrow,
-      bindingField as "startBinding" | "endBinding",
-      currentBinding,
-      bindableElement,
-      elementsMap,
-      true,
-    );
-
-    if (newPoint) {
-      pointUpdates.set(pointIndex, { point: newPoint });
-    }
-  }
-
-  // Also update the adjacent end if it has a binding
-  if (adjacentBinding && adjacentBinding.mode === "orbit") {
-    const adjacentBindableElement = elementsMap.get(
-      adjacentBinding.elementId,
-    ) as ExcalidrawBindableElement;
-
-    if (
-      adjacentBindableElement &&
-      isBindableElement(adjacentBindableElement) &&
-      isBindingEnabled(appState)
-    ) {
-      // Same shape bound on both ends
-      const boundToSameElementAfterUpdate =
-        bindableElement && adjacentBinding.elementId === bindableElement.id;
-      if (switchToInsideBinding || boundToSameElementAfterUpdate) {
-        adjacentBinding = {
-          ...adjacentBinding,
-          mode: "inside",
-        };
-      } else {
-        adjacentBinding = {
-          ...adjacentBinding,
-          mode: "orbit",
-        };
-      }
-
-      const adjacentPointIndex = isStartBinding ? arrow.points.length - 1 : 0;
-      const adjacentNewPoint = updateBoundPoint(
-        arrow,
-        adjacentBindingField,
-        adjacentBinding,
-        adjacentBindableElement,
-        elementsMap,
-      );
-
-      if (adjacentNewPoint) {
-        pointUpdates.set(adjacentPointIndex, {
-          point: adjacentNewPoint,
-        });
-      }
-    }
-  }
-
-  if (pointUpdates.size > 0) {
-    LinearElementEditor.movePoints(arrow, scene, pointUpdates, {
-      [bindingField]: currentBinding,
-      [adjacentBindingField]: adjacentBinding,
-    });
-  }
-};
-
-export const handleFocusPointDrag = (
-  linearElementEditor: LinearElementEditor,
-  elementsMap: NonDeletedSceneElementsMap,
-  pointerCoords: { x: number; y: number },
-  scene: Scene,
-  appState: AppState,
-  gridSize: NullableGridSize,
-  switchToInsideBinding: boolean,
-) => {
-  const arrow = LinearElementEditor.getElement(
-    linearElementEditor.elementId,
-    elementsMap,
-  ) as any;
-
-  // Sanity checks
-  if (
-    !arrow ||
-    !isBindingElement(arrow) ||
-    isElbowArrow(arrow) ||
-    !linearElementEditor.hoveredFocusPointBinding ||
-    !linearElementEditor.draggedFocusPointBinding
-  ) {
-    return;
-  }
-
-  const isStartBinding =
-    linearElementEditor.draggedFocusPointBinding === "start";
-  const binding = isStartBinding ? arrow.startBinding : arrow.endBinding;
-  const { x: offsetX, y: offsetY } = linearElementEditor.pointerOffset;
-  const point = pointFrom<GlobalPoint>(
-    pointerCoords.x - offsetX,
-    pointerCoords.y - offsetY,
-  );
-  const bindingField = isStartBinding ? "startBinding" : "endBinding";
-  const hit = getHoveredElementForFocusPoint(
-    point,
-    arrow,
-    scene.getNonDeletedElements(),
-    elementsMap,
-    maxBindingDistance_simple(appState.zoom),
-  );
-
-  // Hovering a bindable element
-  if (hit && isBindingEnabled(appState)) {
-    // Break existing binding if bound to another shape or if binding is disabled
-    if (arrow[bindingField] && hit.id !== binding?.elementId) {
-      unbindBindingElement(
-        arrow,
-        linearElementEditor.draggedFocusPointBinding,
-        scene,
-      );
-    }
-
-    // Handle binding mode switch
-    const newMode =
-      switchToInsideBinding && arrow[bindingField]?.mode === "orbit"
-        ? "inside"
-        : !switchToInsideBinding && arrow[bindingField]?.mode === "inside"
-        ? "orbit"
-        : null;
-
-    // If no existing binding, create it
-    if (!arrow[bindingField] || newMode) {
-      // Create a new binding if none exists
-      bindBindingElement(
-        arrow,
-        hit,
-        newMode || "orbit",
-        linearElementEditor.draggedFocusPointBinding,
-        scene,
-        point,
-      );
-    }
-
-    // Update the binding's fixed point
-    scene.mutateElement(arrow, {
-      [bindingField]: {
-        ...arrow[bindingField],
-        elementId: hit.id,
-        mode: newMode || arrow[bindingField]?.mode || "orbit",
-        ...calculateFixedPointForNonElbowArrowBinding(
-          arrow,
-          hit,
-          linearElementEditor.draggedFocusPointBinding,
-          elementsMap,
-          point,
-        ),
-      },
-    });
-  } else {
-    // Not hovering any bindable element, move the arrow endpoint
-    const pointUpdates: PointsPositionUpdates = new Map();
-    const pointIndex = isStartBinding ? 0 : arrow.points.length - 1;
-    pointUpdates.set(pointIndex, {
-      point: LinearElementEditor.createPointAt(
-        arrow,
-        elementsMap,
-        point[0],
-        point[1],
-        gridSize,
-      ),
-    });
-    LinearElementEditor.movePoints(arrow, scene, pointUpdates);
-    if (arrow[bindingField]) {
-      unbindBindingElement(arrow, isStartBinding ? "start" : "end", scene);
-    }
-  }
-
-  // Update the arrow endpoints
-  focusPointUpdate(
-    arrow,
-    hit,
-    isStartBinding,
-    elementsMap,
-    scene,
-    appState,
-    switchToInsideBinding,
-  );
-
-  if (hit && isBindingEnabled(appState)) {
-    moveArrowAboveBindable(
-      point,
-      arrow,
-      scene.getElementsIncludingDeleted(),
-      elementsMap,
-      scene,
-      hit,
-    );
-  }
-};
-
-export const handleFocusPointPointerDown = (
-  arrow: ExcalidrawArrowElement,
-  pointerDownState: { origin: { x: number; y: number } },
-  elementsMap: NonDeletedSceneElementsMap,
-  appState: AppState,
-): {
-  hitFocusPoint: "start" | "end" | null;
-  pointerOffset: { x: number; y: number };
-} => {
-  const pointerPos = pointFrom(
-    pointerDownState.origin.x,
-    pointerDownState.origin.y,
-  );
-  const hitThreshold = (FOCUS_POINT_SIZE * 1.5) / appState.zoom.value;
-
-  // Check start binding focus point
-  if (arrow.startBinding?.elementId) {
-    const bindableElement = elementsMap.get(arrow.startBinding.elementId);
-    if (
-      bindableElement &&
-      isBindableElement(bindableElement) &&
-      !bindableElement.isDeleted
-    ) {
-      const focusPoint = getGlobalFixedPointForBindableElement(
-        arrow.startBinding.fixedPoint,
-        bindableElement,
-        elementsMap,
-      );
-      if (
-        isFocusPointVisible(
-          focusPoint,
-          arrow,
-          bindableElement,
-          elementsMap,
-          appState,
-          "start",
-        ) &&
-        pointDistance(pointerPos, focusPoint) <= hitThreshold
-      ) {
-        return {
-          hitFocusPoint: "start",
-          pointerOffset: {
-            x: pointerPos[0] - focusPoint[0],
-            y: pointerPos[1] - focusPoint[1],
-          },
-        };
-      }
-    }
-  }
-
-  // Check end binding focus point (only if start not already hit)
-  if (arrow.endBinding?.elementId) {
-    const bindableElement = elementsMap.get(arrow.endBinding.elementId);
-    if (
-      bindableElement &&
-      isBindableElement(bindableElement) &&
-      !bindableElement.isDeleted
-    ) {
-      const focusPoint = getGlobalFixedPointForBindableElement(
-        arrow.endBinding.fixedPoint,
-        bindableElement,
-        elementsMap,
-      );
-      if (
-        isFocusPointVisible(
-          focusPoint,
-          arrow,
-          bindableElement,
-          elementsMap,
-          appState,
-          "end",
-        ) &&
-        pointDistance(pointerPos, focusPoint) <= hitThreshold
-      ) {
-        return {
-          hitFocusPoint: "end",
-          pointerOffset: {
-            x: pointerPos[0] - focusPoint[0],
-            y: pointerPos[1] - focusPoint[1],
-          },
-        };
-      }
-    }
-  }
-
-  return {
-    hitFocusPoint: null,
-    pointerOffset: { x: 0, y: 0 },
-  };
-};
-
-export const handleFocusPointPointerUp = (
-  linearElementEditor: LinearElementEditor,
-  scene: Scene,
-) => {
-  invariant(
-    linearElementEditor.draggedFocusPointBinding,
-    "Must have a dragged focus point at pointer release",
-  );
-
-  const arrow = LinearElementEditor.getElement<ExcalidrawArrowElement>(
-    linearElementEditor.elementId,
-    scene.getNonDeletedElementsMap(),
-  );
-  invariant(arrow, "Arrow must be in the scene");
-
-  // Clean up
-  const bindingKey =
-    linearElementEditor.draggedFocusPointBinding === "start"
-      ? "startBinding"
-      : "endBinding";
-  const otherBindingKey =
-    linearElementEditor.draggedFocusPointBinding === "start"
-      ? "endBinding"
-      : "startBinding";
-  const boundElementId = arrow[bindingKey]?.elementId;
-  const otherBoundElementId = arrow[otherBindingKey]?.elementId;
-  const oldBoundElement =
-    boundElementId &&
-    scene
-      .getNonDeletedElements()
-      .find(
-        (element) =>
-          element.id !== boundElementId &&
-          element.id !== otherBoundElementId &&
-          isBindableElement(element) &&
-          element.boundElements?.find(({ id }) => id === arrow.id),
-      );
-  if (oldBoundElement) {
-    scene.mutateElement(oldBoundElement, {
-      boundElements: oldBoundElement.boundElements?.filter(
-        ({ id }) => id !== arrow.id,
-      ),
-    });
-  }
-
-  // Record the new bound element
-  const boundElement =
-    boundElementId && scene.getNonDeletedElementsMap().get(boundElementId);
-  if (boundElement) {
-    scene.mutateElement(boundElement, {
-      boundElements: [
-        ...(boundElement.boundElements || [])?.filter(
-          ({ id }) => id !== arrow.id,
-        ),
-        {
-          id: arrow.id,
-          type: "arrow",
-        },
-      ],
-    });
-  }
-};
-
-export const handleFocusPointHover = (
-  arrow: ExcalidrawArrowElement,
-  scenePointerX: number,
-  scenePointerY: number,
-  scene: Scene,
-  appState: AppState,
-): "start" | "end" | null => {
-  const elementsMap = scene.getNonDeletedElementsMap();
-  const pointerPos = pointFrom(scenePointerX, scenePointerY);
-  const hitThreshold = (FOCUS_POINT_SIZE * 1.5) / appState.zoom.value;
-
-  // Check start binding focus point
-  if (arrow.startBinding?.elementId) {
-    const bindableElement = elementsMap.get(arrow.startBinding.elementId);
-    if (
-      bindableElement &&
-      isBindableElement(bindableElement) &&
-      !bindableElement.isDeleted
-    ) {
-      const focusPoint = getGlobalFixedPointForBindableElement(
-        arrow.startBinding.fixedPoint,
-        bindableElement,
-        elementsMap,
-      );
-      if (
-        isFocusPointVisible(
-          focusPoint,
-          arrow,
-          bindableElement,
-          elementsMap,
-          appState,
-          "start",
-        ) &&
-        pointDistance(pointerPos, focusPoint) <= hitThreshold
-      ) {
-        return "start";
-      }
-    }
-  }
-
-  // Check end binding focus point (only if start not already hovered)
-  if (arrow.endBinding?.elementId) {
-    const bindableElement = elementsMap.get(arrow.endBinding.elementId);
-    if (
-      bindableElement &&
-      isBindableElement(bindableElement) &&
-      !bindableElement.isDeleted
-    ) {
-      const focusPoint = getGlobalFixedPointForBindableElement(
-        arrow.endBinding.fixedPoint,
-        bindableElement,
-        elementsMap,
-      );
-      if (
-        isFocusPointVisible(
-          focusPoint,
-          arrow,
-          bindableElement,
-          elementsMap,
-          appState,
-          "end",
-        ) &&
-        pointDistance(pointerPos, focusPoint) <= hitThreshold
-      ) {
-        return "end";
-      }
-    }
-  }
-
-  return null;
-};

packages/element/src/arrows/helpers.ts

@@ -1,45 +0,0 @@
-import type { App } from "@excalidraw/excalidraw/types";
-
-import { LinearElementEditor } from "../linearElementEditor";
-
-import { handleFocusPointDrag } from "./focus";
-
-export const maybeHandleArrowPointlikeDrag = ({
-  app,
-  event,
-}: {
-  app: App;
-  event: KeyboardEvent | React.KeyboardEvent<Element> | PointerEvent;
-}): boolean => {
-  const appState = app.state;
-  if (appState.selectedLinearElement && app.lastPointerMoveCoords) {
-    // Update focus point status if the binding mode is changing
-    if (appState.selectedLinearElement.draggedFocusPointBinding) {
-      handleFocusPointDrag(
-        appState.selectedLinearElement,
-        app.scene.getNonDeletedElementsMap(),
-        app.lastPointerMoveCoords,
-        app.scene,
-        appState,
-        app.getEffectiveGridSize(),
-        event.altKey,
-      );
-      return true;
-    } else if (
-      appState.selectedLinearElement.hoverPointIndex !== null &&
-      app.lastPointerMoveEvent &&
-      appState.selectedLinearElement.initialState.lastClickedPoint >= 0 &&
-      appState.selectedLinearElement.isDragging
-    ) {
-      LinearElementEditor.handlePointDragging(
-        app.lastPointerMoveEvent,
-        app,
-        app.lastPointerMoveCoords.x,
-        app.lastPointerMoveCoords.y,
-        appState.selectedLinearElement,
-      );
-      return true;
-    }
-  }
-  return false;
-};

packages/element/src/bounds.ts

@@ -2,10 +2,10 @@ import rough from "roughjs/bin/rough";
 
 import {
   arrayToMap,
-  type Bounds,
   invariant,
   rescalePoints,
   sizeOf,
+  STROKE_WIDTH,
 } from "@excalidraw/common";
 
 import {
@@ -79,6 +79,16 @@ export type RectangleBox = {
 
 type MaybeQuadraticSolution = [number | null, number | null] | false;
 
+/**
+ * x and y position of top left corner, x and y position of bottom right corner
+ */
+export type Bounds = readonly [
+  minX: number,
+  minY: number,
+  maxX: number,
+  maxY: number,
+];
+
 export type SceneBounds = readonly [
   sceneX: number,
   sceneY: number,
@@ -709,9 +719,6 @@ const getFreeDrawElementAbsoluteCoords = (
   return [x1, y1, x2, y2, (x1 + x2) / 2, (y1 + y2) / 2];
 };
 
-const CARDINALITY_MARKER_SIZE = 20;
-const CROWFOOT_ARROWHEAD_SIZE = 15;
-
 /** @returns number in pixels */
 export const getArrowheadSize = (arrowhead: Arrowhead): number => {
   switch (arrowhead) {
@@ -720,14 +727,10 @@ export const getArrowheadSize = (arrowhead: Arrowhead): number => {
     case "diamond":
     case "diamond_outline":
       return 12;
-    case "cardinality_many":
-    case "cardinality_one_or_many":
-    case "cardinality_zero_or_many":
-      return CROWFOOT_ARROWHEAD_SIZE;
-    case "cardinality_one":
-    case "cardinality_exactly_one":
-    case "cardinality_zero_or_one":
-      return CARDINALITY_MARKER_SIZE;
+    case "crowfoot_many":
+    case "crowfoot_one":
+    case "crowfoot_one_or_many":
+      return 20;
     default:
       return 15;
   }
@@ -750,12 +753,7 @@ export const getArrowheadPoints = (
   shape: Drawable[],
   position: "start" | "end",
   arrowhead: Arrowhead,
-  offsetMultiplier = 0,
 ) => {
-  if (arrowhead === null) {
-    return null;
-  }
-
   if (shape.length < 1) {
     return null;
   }
@@ -789,41 +787,27 @@ export const getArrowheadPoints = (
     p0 = pointFrom(prevOp.data[4], prevOp.data[5]);
   }
 
-  // We know the last point of the arrow (or the first, if start arrowhead).
+  // B(t) = p0 * (1-t)^3 + 3p1 * t * (1-t)^2 + 3p2 * t^2 * (1-t) + p3 * t^3
+  const equation = (t: number, idx: number) =>
+    Math.pow(1 - t, 3) * p3[idx] +
+    3 * t * Math.pow(1 - t, 2) * p2[idx] +
+    3 * Math.pow(t, 2) * (1 - t) * p1[idx] +
+    p0[idx] * Math.pow(t, 3);
+
+  // Ee know the last point of the arrow (or the first, if start arrowhead).
   const [x2, y2] = position === "start" ? p0 : p3;
 
-  // Use the analytic tangent at the Bézier endpoint for a precise arrowhead
-  // direction. For a cubic Bézier B(t) with control points p0p3:
-  //   B'(1): (p3 − p2) tangent at the end
-  //   B'(0): (p1 − p0) for start arrowhead, arrow points away: (p0 − p1)
-  let dx: number;
-  let dy: number;
-  if (position === "end") {
-    dx = p3[0] - p2[0];
-    dy = p3[1] - p2[1];
-    if (Math.hypot(dx, dy) < 1e-6) {
-      dx = p3[0] - p1[0];
-      dy = p3[1] - p1[1];
-    }
-    if (Math.hypot(dx, dy) < 1e-6) {
-      dx = p3[0] - p0[0];
-      dy = p3[1] - p0[1];
-    }
-  } else {
-    dx = p0[0] - p1[0];
-    dy = p0[1] - p1[1];
-    if (Math.hypot(dx, dy) < 1e-6) {
-      dx = p0[0] - p2[0];
-      dy = p0[1] - p2[1];
-    }
-    if (Math.hypot(dx, dy) < 1e-6) {
-      dx = p0[0] - p3[0];
-      dy = p0[1] - p3[1];
-    }
-  }
-  const distance = Math.hypot(dx, dy);
-  const nx = dx / distance;
-  const ny = dy / distance;
+  // By using cubic bezier equation (B(t)) and the given parameters,
+  // we calculate a point that is closer to the last point.
+  // The value 0.3 is chosen arbitrarily and it works best for all
+  // the tested cases.
+  const [x1, y1] = [equation(0.3, 0), equation(0.3, 1)];
+
+  // Find the normalized direction vector based on the
+  // previously calculated points.
+  const distance = Math.hypot(x2 - x1, y2 - y1);
+  const nx = (x2 - x1) / distance;
+  const ny = (y2 - y1) / distance;
 
   const size = getArrowheadSize(arrowhead);
 
@@ -849,31 +833,36 @@ export const getArrowheadPoints = (
   // This value is selected by minimizing a minimum size with the last segment of the arrowhead
   const lengthMultiplier =
     arrowhead === "diamond" || arrowhead === "diamond_outline" ? 0.25 : 0.5;
-  const minSize = Math.min(size, length * lengthMultiplier);
-  const tx = x2 - nx * minSize * offsetMultiplier;
-  const ty = y2 - ny * minSize * offsetMultiplier;
-  const xs = tx - nx * minSize;
-  const ys = ty - ny * minSize;
+  // make arrowheads bigger for thick strokes
+  const strokeWidthMultiplier =
+    element.strokeWidth >= STROKE_WIDTH.extraBold ? 1.5 : 1;
 
-  if (arrowhead === "circle" || arrowhead === "circle_outline") {
-    const diameter = Math.hypot(ys - ty, xs - tx) + element.strokeWidth - 2;
-    return [tx, ty, diameter];
+  const adjustedSize =
+    Math.min(size, length * lengthMultiplier) * strokeWidthMultiplier;
+
+  const xs = x2 - nx * adjustedSize;
+  const ys = y2 - ny * adjustedSize;
+
+  if (
+    arrowhead === "dot" ||
+    arrowhead === "circle" ||
+    arrowhead === "circle_outline"
+  ) {
+    const diameter = Math.hypot(ys - y2, xs - x2) + element.strokeWidth - 2;
+    return [x2, y2, diameter];
   }
 
   const angle = getArrowheadAngle(arrowhead);
 
-  if (
-    arrowhead === "cardinality_many" ||
-    arrowhead === "cardinality_one_or_many"
-  ) {
+  if (arrowhead === "crowfoot_many" || arrowhead === "crowfoot_one_or_many") {
     // swap (xs, ys) with (x2, y2)
     const [x3, y3] = pointRotateRads(
-      pointFrom(tx, ty),
+      pointFrom(x2, y2),
       pointFrom(xs, ys),
       degreesToRadians(-angle as Degrees),
     );
     const [x4, y4] = pointRotateRads(
-      pointFrom(tx, ty),
+      pointFrom(x2, y2),
       pointFrom(xs, ys),
       degreesToRadians(angle),
     );
@@ -883,12 +872,12 @@ export const getArrowheadPoints = (
   // Return points
   const [x3, y3] = pointRotateRads(
     pointFrom(xs, ys),
-    pointFrom(tx, ty),
+    pointFrom(x2, y2),
     ((-angle * Math.PI) / 180) as Radians,
   );
   const [x4, y4] = pointRotateRads(
     pointFrom(xs, ys),
-    pointFrom(tx, ty),
+    pointFrom(x2, y2),
     degreesToRadians(angle),
   );
 
@@ -901,9 +890,9 @@ export const getArrowheadPoints = (
       const [px, py] = element.points.length > 1 ? element.points[1] : [0, 0];
 
       [ox, oy] = pointRotateRads(
-        pointFrom(tx + minSize * 2, ty),
-        pointFrom(tx, ty),
-        Math.atan2(py - ty, px - tx) as Radians,
+        pointFrom(x2 + adjustedSize * 2, y2),
+        pointFrom(x2, y2),
+        Math.atan2(py - y2, px - x2) as Radians,
       );
     } else {
       const [px, py] =
@@ -912,19 +901,18 @@ export const getArrowheadPoints = (
           : [0, 0];
 
       [ox, oy] = pointRotateRads(
-        pointFrom(tx - minSize * 2, ty),
-        pointFrom(tx, ty),
-        Math.atan2(ty - py, tx - px) as Radians,
+        pointFrom(x2 - adjustedSize * 2, y2),
+        pointFrom(x2, y2),
+        Math.atan2(y2 - py, x2 - px) as Radians,
       );
     }
 
-    return [tx, ty, x3, y3, ox, oy, x4, y4];
+    return [x2, y2, x3, y3, ox, oy, x4, y4];
   }
 
-  return [tx, ty, x3, y3, x4, y4];
+  return [x2, y2, x3, y3, x4, y4];
 };
 
-// TODO reuse shape.ts
 const generateLinearElementShape = (
   element: ExcalidrawLinearElement,
 ): Drawable => {
@@ -982,7 +970,7 @@ const getLinearElementRotatedBounds = (
   }
 
   // first element is always the curve
-  const cachedShape = ShapeCache.get(element, null)?.[0];
+  const cachedShape = ShapeCache.get(element)?.[0];
   const shape = cachedShape ?? generateLinearElementShape(element);
   const ops = getCurvePathOps(shape);
   const transformXY = ([x, y]: GlobalPoint) =>
@@ -1295,13 +1283,6 @@ export const elementCenterPoint = (
   xOffset: number = 0,
   yOffset: number = 0,
 ) => {
-  if (isLinearElement(element)) {
-    const [x1, y1, x2, y2] = getElementAbsoluteCoords(element, elementsMap);
-    const [x, y] = pointFrom<GlobalPoint>((x1 + x2) / 2, (y1 + y2) / 2);
-
-    return pointFrom<GlobalPoint>(x + xOffset, y + yOffset);
-  }
-
   const [x, y] = getCenterForBounds(getElementBounds(element, elementsMap));
 
   return pointFrom<GlobalPoint>(x + xOffset, y + yOffset);

packages/element/src/collision.ts

@@ -1,4 +1,4 @@
-import { invariant, isTransparent, type Bounds } from "@excalidraw/common";
+import { isTransparent } from "@excalidraw/common";
 import {
   curveIntersectLineSegment,
   isPointWithinBounds,
@@ -29,18 +29,15 @@ import type { FrameNameBounds } from "@excalidraw/excalidraw/types";
 
 import { isPathALoop } from "./utils";
 import {
+  type Bounds,
   doBoundsIntersect,
   elementCenterPoint,
   getCenterForBounds,
   getCubicBezierCurveBound,
-  getDiamondPoints,
   getElementBounds,
-  pointInsideBounds,
 } from "./bounds";
 import {
   hasBoundTextElement,
-  isBindableElement,
-  isFrameLikeElement,
   isFreeDrawElement,
   isIframeLikeElement,
   isImageElement,
@@ -59,22 +56,14 @@ import { LinearElementEditor } from "./linearElementEditor";
 
 import { distanceToElement } from "./distance";
 
-import { getBindingGap } from "./binding";
-
 import type {
   ElementsMap,
-  ExcalidrawArrowElement,
-  ExcalidrawBindableElement,
   ExcalidrawDiamondElement,
   ExcalidrawElement,
   ExcalidrawEllipseElement,
   ExcalidrawFreeDrawElement,
   ExcalidrawLinearElement,
   ExcalidrawRectanguloidElement,
-  NonDeleted,
-  NonDeletedExcalidrawElement,
-  NonDeletedSceneElementsMap,
-  Ordered,
 } from "./types";
 
 export const shouldTestInside = (element: ExcalidrawElement) => {
@@ -105,41 +94,15 @@ export type HitTestArgs = {
   threshold: number;
   elementsMap: ElementsMap;
   frameNameBound?: FrameNameBounds | null;
-  overrideShouldTestInside?: boolean;
 };
 
-let cachedPoint: GlobalPoint | null = null;
-let cachedElement: WeakRef<ExcalidrawElement> | null = null;
-let cachedThreshold: number = Infinity;
-let cachedHit: boolean = false;
-let cachedOverrideShouldTestInside = false;
-
 export const hitElementItself = ({
   point,
   element,
   threshold,
   elementsMap,
   frameNameBound = null,
-  overrideShouldTestInside = false,
 }: HitTestArgs) => {
-  // Return cached result if the same point and element version is tested again
-  if (
-    cachedPoint &&
-    pointsEqual(point, cachedPoint) &&
-    cachedThreshold <= threshold &&
-    overrideShouldTestInside === cachedOverrideShouldTestInside
-  ) {
-    const derefElement = cachedElement?.deref();
-    if (
-      derefElement &&
-      derefElement.id === element.id &&
-      derefElement.version === element.version &&
-      derefElement.versionNonce === element.versionNonce
-    ) {
-      return cachedHit;
-    }
-  }
-
   // Hit test against a frame's name
   const hitFrameName = frameNameBound
     ? isPointWithinBounds(
@@ -171,25 +134,14 @@ export const hitElementItself = ({
   }
 
   // Do the precise (and relatively costly) hit test
-  const hitElement = (
-    overrideShouldTestInside ? true : shouldTestInside(element)
-  )
+  const hitElement = shouldTestInside(element)
     ? // Since `inShape` tests STRICTLY againt the insides of a shape
       // we would need `onShape` as well to include the "borders"
       isPointInElement(point, element, elementsMap) ||
       isPointOnElementOutline(point, element, elementsMap, threshold)
     : isPointOnElementOutline(point, element, elementsMap, threshold);
 
-  const result = hitElement || hitFrameName;
-
-  // Cache end result
-  cachedPoint = point;
-  cachedElement = new WeakRef(element);
-  cachedThreshold = threshold;
-  cachedOverrideShouldTestInside = overrideShouldTestInside;
-  cachedHit = result;
-
-  return result;
+  return hitElement || hitFrameName;
 };
 
 export const hitElementBoundingBox = (
@@ -241,166 +193,6 @@ export const hitElementBoundText = (
   return isPointInElement(point, boundTextElement, elementsMap);
 };
 
-const bindingBorderTest = (
-  element: NonDeleted<ExcalidrawBindableElement>,
-  [x, y]: Readonly<GlobalPoint>,
-  elementsMap: NonDeletedSceneElementsMap,
-  tolerance: number = 0,
-): boolean => {
-  const p = pointFrom<GlobalPoint>(x, y);
-  const shouldTestInside =
-    // disable fullshape snapping for frame elements so we
-    // can bind to frame children
-    !isFrameLikeElement(element);
-
-  // PERF: Run a cheap test to see if the binding element
-  // is even close to the element
-  const t = Math.max(1, tolerance);
-  const bounds = [x - t, y - t, x + t, y + t] as Bounds;
-  const elementBounds = getElementBounds(element, elementsMap);
-  if (!doBoundsIntersect(bounds, elementBounds)) {
-    return false;
-  }
-
-  // If the element is inside a frame, we should clip the element
-  if (element.frameId) {
-    const enclosingFrame = elementsMap.get(element.frameId);
-    if (enclosingFrame && isFrameLikeElement(enclosingFrame)) {
-      const enclosingFrameBounds = getElementBounds(
-        enclosingFrame,
-        elementsMap,
-      );
-      if (!pointInsideBounds(p, enclosingFrameBounds)) {
-        return false;
-      }
-    }
-  }
-
-  // Do the intersection test against the element since it's close enough
-  const intersections = intersectElementWithLineSegment(
-    element,
-    elementsMap,
-    lineSegment(elementCenterPoint(element, elementsMap), p),
-  );
-  const distance = distanceToElement(element, elementsMap, p);
-
-  return shouldTestInside
-    ? intersections.length === 0 || distance <= tolerance
-    : intersections.length > 0 && distance <= t;
-};
-
-export const getAllHoveredElementAtPoint = (
-  point: Readonly<GlobalPoint>,
-  elements: readonly Ordered<NonDeletedExcalidrawElement>[],
-  elementsMap: NonDeletedSceneElementsMap,
-  tolerance?: number,
-): NonDeleted<ExcalidrawBindableElement>[] => {
-  const candidateElements: NonDeleted<ExcalidrawBindableElement>[] = [];
-  // We need to to hit testing from front (end of the array) to back (beginning of the array)
-  // because array is ordered from lower z-index to highest and we want element z-index
-  // with higher z-index
-  for (let index = elements.length - 1; index >= 0; --index) {
-    const element = elements[index];
-
-    invariant(
-      !element.isDeleted,
-      "Elements in the function parameter for getAllElementsAtPositionForBinding() should not contain deleted elements",
-    );
-
-    if (
-      isBindableElement(element, false) &&
-      bindingBorderTest(element, point, elementsMap, tolerance)
-    ) {
-      candidateElements.push(element);
-
-      if (!isTransparent(element.backgroundColor)) {
-        break;
-      }
-    }
-  }
-
-  return candidateElements;
-};
-
-export const getHoveredElementForBinding = (
-  point: Readonly<GlobalPoint>,
-  elements: readonly Ordered<NonDeletedExcalidrawElement>[],
-  elementsMap: NonDeletedSceneElementsMap,
-  tolerance?: number,
-): NonDeleted<ExcalidrawBindableElement> | null => {
-  const candidateElements = getAllHoveredElementAtPoint(
-    point,
-    elements,
-    elementsMap,
-    tolerance,
-  );
-
-  if (!candidateElements || candidateElements.length === 0) {
-    return null;
-  }
-
-  if (candidateElements.length === 1) {
-    return candidateElements[0];
-  }
-
-  // Prefer smaller shapes
-  return candidateElements
-    .sort(
-      (a, b) => b.width ** 2 + b.height ** 2 - (a.width ** 2 + a.height ** 2),
-    )
-    .pop() as NonDeleted<ExcalidrawBindableElement>;
-};
-
-export const getHoveredElementForFocusPoint = (
-  point: GlobalPoint,
-  arrow: ExcalidrawArrowElement,
-  elements: readonly Ordered<NonDeletedExcalidrawElement>[],
-  elementsMap: NonDeletedSceneElementsMap,
-  tolerance?: number,
-): ExcalidrawBindableElement | null => {
-  const candidateElements: NonDeleted<ExcalidrawBindableElement>[] = [];
-  // We need to to hit testing from front (end of the array) to back (beginning of the array)
-  // because array is ordered from lower z-index to highest and we want element z-index
-  // with higher z-index
-  for (let index = elements.length - 1; index >= 0; --index) {
-    const element = elements[index];
-
-    invariant(
-      !element.isDeleted,
-      "Elements in the function parameter for getAllElementsAtPositionForBinding() should not contain deleted elements",
-    );
-
-    if (
-      isBindableElement(element, false) &&
-      bindingBorderTest(element, point, elementsMap, tolerance)
-    ) {
-      candidateElements.push(element);
-    }
-  }
-
-  if (!candidateElements || candidateElements.length === 0) {
-    return null;
-  }
-
-  if (candidateElements.length === 1) {
-    return candidateElements[0];
-  }
-
-  const distanceFilteredCandidateElements = candidateElements
-    // Resolve by distance
-    .filter(
-      (el) =>
-        distanceToElement(el, elementsMap, point) <= getBindingGap(el, arrow) ||
-        isPointInElement(point, el, elementsMap),
-    );
-
-  if (distanceFilteredCandidateElements.length === 0) {
-    return null;
-  }
-
-  return distanceFilteredCandidateElements[0] as NonDeleted<ExcalidrawBindableElement>;
-};
-
 /**
  * Intersect a line with an element for binding test
  *
@@ -762,61 +554,3 @@ export const isPointInElement = (
 
   return intersections.length % 2 === 1;
 };
-
-export const isBindableElementInsideOtherBindable = (
-  innerElement: ExcalidrawBindableElement,
-  outerElement: ExcalidrawBindableElement,
-  elementsMap: ElementsMap,
-): boolean => {
-  // Get corner points of the inner element based on its type
-  const getCornerPoints = (
-    element: ExcalidrawElement,
-    offset: number,
-  ): GlobalPoint[] => {
-    const { x, y, width, height, angle } = element;
-    const center = elementCenterPoint(element, elementsMap);
-
-    if (element.type === "diamond") {
-      // Diamond has 4 corner points at the middle of each side
-      const [topX, topY, rightX, rightY, bottomX, bottomY, leftX, leftY] =
-        getDiamondPoints(element);
-      const corners: GlobalPoint[] = [
-        pointFrom(x + topX, y + topY - offset), // top
-        pointFrom(x + rightX + offset, y + rightY), // right
-        pointFrom(x + bottomX, y + bottomY + offset), // bottom
-        pointFrom(x + leftX - offset, y + leftY), // left
-      ];
-      return corners.map((corner) => pointRotateRads(corner, center, angle));
-    }
-    if (element.type === "ellipse") {
-      // For ellipse, test points at the extremes (top, right, bottom, left)
-      const cx = x + width / 2;
-      const cy = y + height / 2;
-      const rx = width / 2;
-      const ry = height / 2;
-      const corners: GlobalPoint[] = [
-        pointFrom(cx, cy - ry - offset), // top
-        pointFrom(cx + rx + offset, cy), // right
-        pointFrom(cx, cy + ry + offset), // bottom
-        pointFrom(cx - rx - offset, cy), // left
-      ];
-      return corners.map((corner) => pointRotateRads(corner, center, angle));
-    }
-    // Rectangle and other rectangular shapes (image, text, etc.)
-    const corners: GlobalPoint[] = [
-      pointFrom(x - offset, y - offset), // top-left
-      pointFrom(x + width + offset, y - offset), // top-right
-      pointFrom(x + width + offset, y + height + offset), // bottom-right
-      pointFrom(x - offset, y + height + offset), // bottom-left
-    ];
-    return corners.map((corner) => pointRotateRads(corner, center, angle));
-  };
-
-  const offset = (-1 * Math.max(innerElement.width, innerElement.height)) / 20; // 5% offset
-  const innerCorners = getCornerPoints(innerElement, offset);
-
-  // Check if all corner points of the inner element are inside the outer element
-  return innerCorners.every((corner) =>
-    isPointInElement(corner, outerElement, elementsMap),
-  );
-};

packages/element/src/comparisons.ts

@@ -16,8 +16,7 @@ export const hasStrokeColor = (type: ElementOrToolType) =>
   type === "freedraw" ||
   type === "arrow" ||
   type === "line" ||
-  type === "text" ||
-  type === "embeddable";
+  type === "text";
 
 export const hasStrokeWidth = (type: ElementOrToolType) =>
   type === "rectangle" ||

packages/element/src/distribute.ts

@@ -1,12 +1,10 @@
 import type { AppState } from "@excalidraw/excalidraw/types";
 
-import { updateBoundElements } from "./binding";
 import { getCommonBoundingBox } from "./bounds";
+import { newElementWith } from "./mutateElement";
 
 import { getSelectedElementsByGroup } from "./groups";
 
-import type { Scene } from "./Scene";
-
 import type { ElementsMap, ExcalidrawElement } from "./types";
 
 export interface Distribution {
@@ -19,7 +17,6 @@ export const distributeElements = (
   elementsMap: ElementsMap,
   distribution: Distribution,
   appState: Readonly<AppState>,
-  scene: Scene,
 ): ExcalidrawElement[] => {
   const [start, mid, end, extent] =
     distribution.axis === "x"
@@ -69,16 +66,12 @@ export const distributeElements = (
         translation[distribution.axis] = pos - box[mid];
       }
 
-      return group.map((element) => {
-        const updatedElement = scene.mutateElement(element, {
+      return group.map((element) =>
+        newElementWith(element, {
           x: element.x + translation.x,
           y: element.y + translation.y,
-        });
-        updateBoundElements(element, scene, {
-          simultaneouslyUpdated: group,
-        });
-        return updatedElement;
-      });
+        }),
+      );
     });
   }
 
@@ -97,15 +90,11 @@ export const distributeElements = (
     pos += step;
     pos += box[extent];
 
-    return group.map((element) => {
-      const updatedElement = scene.mutateElement(element, {
+    return group.map((element) =>
+      newElementWith(element, {
         x: element.x + translation.x,
         y: element.y + translation.y,
-      });
-      updateBoundElements(element, scene, {
-        simultaneouslyUpdated: group,
-      });
-      return updatedElement;
-    });
+      }),
+    );
   });
 };

packages/element/src/dragElements.ts

@@ -1,9 +1,7 @@
 import {
-  type Bounds,
   TEXT_AUTOWRAP_THRESHOLD,
   getGridPoint,
   getFontString,
-  DRAGGING_THRESHOLD,
 } from "@excalidraw/common";
 
 import type {
@@ -15,7 +13,7 @@ import type {
 
 import type { NonDeletedExcalidrawElement } from "@excalidraw/element/types";
 
-import { unbindBindingElement, updateBoundElements } from "./binding";
+import { updateBoundElements } from "./binding";
 import { getCommonBounds } from "./bounds";
 import { getPerfectElementSize } from "./sizeHelpers";
 import { getBoundTextElement } from "./textElement";
@@ -30,6 +28,7 @@ import {
 
 import type { Scene } from "./Scene";
 
+import type { Bounds } from "./bounds";
 import type { ExcalidrawElement } from "./types";
 
 export const dragSelectedElements = (
@@ -103,26 +102,9 @@ export const dragSelectedElements = (
     gridSize,
   );
 
-  const elementsToUpdateIds = new Set(
-    Array.from(elementsToUpdate, (el) => el.id),
-  );
-
   elementsToUpdate.forEach((element) => {
-    const isArrow = !isArrowElement(element);
-    const isStartBoundElementSelected =
-      isArrow ||
-      (element.startBinding
-        ? elementsToUpdateIds.has(element.startBinding.elementId)
-        : false);
-    const isEndBoundElementSelected =
-      isArrow ||
-      (element.endBinding
-        ? elementsToUpdateIds.has(element.endBinding.elementId)
-        : false);
-
+    updateElementCoords(pointerDownState, element, scene, adjustedOffset);
     if (!isArrowElement(element)) {
-      updateElementCoords(pointerDownState, element, scene, adjustedOffset);
-
       // skip arrow labels since we calculate its position during render
       const textElement = getBoundTextElement(
         element,
@@ -139,33 +121,6 @@ export const dragSelectedElements = (
       updateBoundElements(element, scene, {
         simultaneouslyUpdated: Array.from(elementsToUpdate),
       });
-    } else if (
-      // NOTE: Add a little initial drag to the arrow dragging when the arrow
-      // is the single element being dragged to avoid accidentally unbinding
-      // the arrow when the user just wants to select it.
-
-      elementsToUpdate.size > 1 ||
-      Math.max(Math.abs(adjustedOffset.x), Math.abs(adjustedOffset.y)) >
-        DRAGGING_THRESHOLD ||
-      (!element.startBinding && !element.endBinding)
-    ) {
-      updateElementCoords(pointerDownState, element, scene, adjustedOffset);
-
-      const shouldUnbindStart =
-        element.startBinding && !isStartBoundElementSelected;
-      const shouldUnbindEnd = element.endBinding && !isEndBoundElementSelected;
-      if (shouldUnbindStart || shouldUnbindEnd) {
-        // NOTE: Moving the bound arrow should unbind it, otherwise we would
-        // have weird situations, like 0 lenght arrow when the user moves
-        // the arrow outside a filled shape suddenly forcing the arrow start
-        // and end point to jump "outside" the shape.
-        if (shouldUnbindStart) {
-          unbindBindingElement(element, "start", scene);
-        }
-        if (shouldUnbindEnd) {
-          unbindBindingElement(element, "end", scene);
-        }
-      }
     }
   });
 };

packages/element/src/elbowArrow.ts

@@ -14,10 +14,10 @@ import {
 } from "@excalidraw/math";
 
 import {
-  type Bounds,
   BinaryHeap,
   invariant,
   isAnyTrue,
+  tupleToCoors,
   getSizeFromPoints,
   isDevEnv,
   arrayToMap,
@@ -27,11 +27,10 @@ import type { AppState } from "@excalidraw/excalidraw/types";
 
 import {
   bindPointToSnapToElementOutline,
+  FIXED_BINDING_DISTANCE,
   getHeadingForElbowArrowSnap,
   getGlobalFixedPointForBindableElement,
-  getBindingGap,
-  maxBindingDistance_simple,
-  BASE_BINDING_GAP_ELBOW,
+  getHoveredElementForBinding,
 } from "./binding";
 import { distanceToElement } from "./distance";
 import {
@@ -52,9 +51,10 @@ import {
   type ExcalidrawElbowArrowElement,
   type NonDeletedSceneElementsMap,
 } from "./types";
-import { aabbForElement, pointInsideBounds } from "./bounds";
-import { getHoveredElementForBinding } from "./collision";
 
+import { aabbForElement, pointInsideBounds } from "./bounds";
+
+import type { Bounds } from "./bounds";
 import type { Heading } from "./heading";
 import type {
   Arrowhead,
@@ -63,7 +63,6 @@ import type {
   FixedPointBinding,
   FixedSegment,
   NonDeletedExcalidrawElement,
-  Ordered,
 } from "./types";
 
 type GridAddress = [number, number] & { _brand: "gridaddress" };
@@ -915,8 +914,6 @@ export const updateElbowArrowPoints = (
   },
   options?: {
     isDragging?: boolean;
-    isBindingEnabled?: boolean;
-    isMidpointSnappingEnabled?: boolean;
   },
 ): ElementUpdate<ExcalidrawElbowArrowElement> => {
   if (arrow.points.length < 2) {
@@ -1204,8 +1201,6 @@ const getElbowArrowData = (
   options?: {
     isDragging?: boolean;
     zoom?: AppState["zoom"];
-    isBindingEnabled?: boolean;
-    isMidpointSnappingEnabled?: boolean;
   },
 ) => {
   const origStartGlobalPoint: GlobalPoint = pointTranslate<
@@ -1219,7 +1214,7 @@ const getElbowArrowData = (
 
   let hoveredStartElement = null;
   let hoveredEndElement = null;
-  if (options?.isDragging && options?.isBindingEnabled !== false) {
+  if (options?.isDragging) {
     const elements = Array.from(elementsMap.values());
     hoveredStartElement =
       getHoveredElement(
@@ -1248,7 +1243,6 @@ const getElbowArrowData = (
   const startGlobalPoint = getGlobalPoint(
     {
       ...arrow,
-      angle: 0,
       type: "arrow",
       elbowed: true,
       points: nextPoints,
@@ -1259,13 +1253,10 @@ const getElbowArrowData = (
     hoveredStartElement,
     elementsMap,
     options?.isDragging,
-    options?.isBindingEnabled,
-    options?.isMidpointSnappingEnabled,
   );
   const endGlobalPoint = getGlobalPoint(
     {
       ...arrow,
-      angle: 0,
       type: "arrow",
       elbowed: true,
       points: nextPoints,
@@ -1276,8 +1267,6 @@ const getElbowArrowData = (
     hoveredEndElement,
     elementsMap,
     options?.isDragging,
-    options?.isBindingEnabled,
-    options?.isMidpointSnappingEnabled,
   );
   const startHeading = getBindPointHeading(
     startGlobalPoint,
@@ -1285,7 +1274,6 @@ const getElbowArrowData = (
     hoveredStartElement,
     origStartGlobalPoint,
     elementsMap,
-    options?.zoom,
   );
   const endHeading = getBindPointHeading(
     endGlobalPoint,
@@ -1293,7 +1281,6 @@ const getElbowArrowData = (
     hoveredEndElement,
     origEndGlobalPoint,
     elementsMap,
-    options?.zoom,
   );
   const startPointBounds = [
     startGlobalPoint[0] - 2,
@@ -1314,8 +1301,8 @@ const getElbowArrowData = (
         offsetFromHeading(
           startHeading,
           arrow.startArrowhead
-            ? getBindingGap(hoveredStartElement, { elbowed: true }) * 6
-            : getBindingGap(hoveredStartElement, { elbowed: true }) * 2,
+            ? FIXED_BINDING_DISTANCE * 6
+            : FIXED_BINDING_DISTANCE * 2,
           1,
         ),
       )
@@ -1327,8 +1314,8 @@ const getElbowArrowData = (
         offsetFromHeading(
           endHeading,
           arrow.endArrowhead
-            ? getBindingGap(hoveredEndElement, { elbowed: true }) * 6
-            : getBindingGap(hoveredEndElement, { elbowed: true }) * 2,
+            ? FIXED_BINDING_DISTANCE * 6
+            : FIXED_BINDING_DISTANCE * 2,
           1,
         ),
       )
@@ -1375,8 +1362,8 @@ const getElbowArrowData = (
             ? 0
             : BASE_PADDING -
                 (arrow.startArrowhead
-                  ? BASE_BINDING_GAP_ELBOW * 6
-                  : BASE_BINDING_GAP_ELBOW * 2),
+                  ? FIXED_BINDING_DISTANCE * 6
+                  : FIXED_BINDING_DISTANCE * 2),
           BASE_PADDING,
         ),
     boundsOverlap
@@ -1391,8 +1378,8 @@ const getElbowArrowData = (
             ? 0
             : BASE_PADDING -
                 (arrow.endArrowhead
-                  ? BASE_BINDING_GAP_ELBOW * 6
-                  : BASE_BINDING_GAP_ELBOW * 2),
+                  ? FIXED_BINDING_DISTANCE * 6
+                  : FIXED_BINDING_DISTANCE * 2),
           BASE_PADDING,
         ),
     boundsOverlap,
@@ -2221,18 +2208,14 @@ const getGlobalPoint = (
   element?: ExcalidrawBindableElement | null,
   elementsMap?: ElementsMap,
   isDragging?: boolean,
-  isBindingEnabled = true,
-  isMidpointSnappingEnabled = true,
 ): GlobalPoint => {
   if (isDragging) {
-    if (isBindingEnabled && element && elementsMap) {
+    if (element && elementsMap) {
       return bindPointToSnapToElementOutline(
         arrow,
         element,
         startOrEnd,
         elementsMap,
-        undefined,
-        isMidpointSnappingEnabled,
       );
     }
 
@@ -2256,7 +2239,6 @@ const getBindPointHeading = (
   hoveredElement: ExcalidrawBindableElement | null | undefined,
   origPoint: GlobalPoint,
   elementsMap: ElementsMap,
-  zoom?: AppState["zoom"],
 ): Heading =>
   getHeadingForElbowArrowSnap(
     p,
@@ -2275,20 +2257,21 @@ const getBindPointHeading = (
       ),
     origPoint,
     elementsMap,
-    zoom,
   );
 
 const getHoveredElement = (
   origPoint: GlobalPoint,
   elementsMap: NonDeletedSceneElementsMap,
-  elements: readonly Ordered<NonDeletedExcalidrawElement>[],
+  elements: readonly NonDeletedExcalidrawElement[],
   zoom?: AppState["zoom"],
 ) => {
   return getHoveredElementForBinding(
-    origPoint,
+    tupleToCoors(origPoint),
     elements,
     elementsMap,
-    maxBindingDistance_simple(zoom),
+    zoom,
+    true,
+    true,
   );
 };
 

packages/element/src/embeddable.ts

@@ -56,7 +56,7 @@ const RE_REDDIT =
 const RE_REDDIT_EMBED =
   /^<blockquote[\s\S]*?\shref=["'](https?:\/\/(?:www\.)?reddit\.com\/[^"']*)/i;
 
-const parseYouTubeLikeTimestamp = (url: string): number => {
+const parseYouTubeTimestamp = (url: string): number => {
   let timeParam: string | null | undefined;
 
   try {
@@ -85,57 +85,11 @@ const parseYouTubeLikeTimestamp = (url: string): number => {
   return parseInt(hours) * 3600 + parseInt(minutes) * 60 + parseInt(seconds);
 };
 
-const parseGoogleDriveVideoLink = (
-  url: string,
-): { fileId: string; resourceKey?: string; timestamp?: number } | null => {
-  try {
-    const urlObj = new URL(url.startsWith("http") ? url : `https://${url}`);
-    const hostname = urlObj.hostname.replace(/^www\./, "");
-    if (hostname !== "drive.google.com") {
-      return null;
-    }
-
-    let fileId: string | null = null;
-    const pathMatch = urlObj.pathname.match(/^\/file\/d\/([^/]+)(?:\/|$)/);
-    if (pathMatch?.[1]) {
-      fileId = pathMatch[1];
-    } else if (urlObj.pathname === "/open" || urlObj.pathname === "/uc") {
-      // Shared Drive links can be emitted as:
-      // - /open?id=<fileId> (common "open in Drive" format)
-      // - /uc?...&id=<fileId> (download/export endpoint often seen in copied links)
-      fileId = urlObj.searchParams.get("id");
-    }
-
-    if (!fileId || !/^[a-zA-Z0-9_-]+$/.test(fileId)) {
-      return null;
-    }
-
-    // Some Drive share links include `resourcekey` for access to link-shared
-    // files; preserve it in the preview URL so embeds keep working.
-    const resourceKey = urlObj.searchParams.get("resourcekey");
-    const timestamp = parseYouTubeLikeTimestamp(urlObj.toString());
-
-    return {
-      fileId,
-      resourceKey:
-        resourceKey && /^[a-zA-Z0-9_-]+$/.test(resourceKey)
-          ? resourceKey
-          : undefined,
-      // Drive accepts YouTube-like `t` formats (e.g. `t=90`, `t=1m30s`);
-      // normalize to seconds for a stable preview URL.
-      timestamp: timestamp > 0 ? timestamp : undefined,
-    };
-  } catch (error) {
-    return null;
-  }
-};
-
 const ALLOWED_DOMAINS = new Set([
   "youtube.com",
   "youtu.be",
   "vimeo.com",
   "player.vimeo.com",
-  "drive.google.com",
   "figma.com",
   "link.excalidraw.com",
   "gist.github.com",
@@ -154,7 +108,6 @@ const ALLOW_SAME_ORIGIN = new Set([
   "youtu.be",
   "vimeo.com",
   "player.vimeo.com",
-  "drive.google.com",
   "figma.com",
   "twitter.com",
   "x.com",
@@ -189,7 +142,7 @@ export const getEmbedLink = (
   let aspectRatio = { w: 560, h: 840 };
   const ytLink = link.match(RE_YOUTUBE);
   if (ytLink?.[2]) {
-    const startTime = parseYouTubeLikeTimestamp(originalLink);
+    const startTime = parseYouTubeTimestamp(originalLink);
     const time = startTime > 0 ? `&start=${startTime}` : ``;
     const isPortrait = link.includes("shorts");
     type = "video";
@@ -248,36 +201,6 @@ export const getEmbedLink = (
     };
   }
 
-  const googleDriveVideo = parseGoogleDriveVideoLink(link);
-  if (googleDriveVideo) {
-    type = "video";
-    const searchParams = new URLSearchParams();
-    if (googleDriveVideo.resourceKey) {
-      searchParams.set("resourcekey", googleDriveVideo.resourceKey);
-    }
-    if (googleDriveVideo.timestamp) {
-      searchParams.set("t", `${googleDriveVideo.timestamp}`);
-    }
-
-    const search = searchParams.toString();
-    link = `https://drive.google.com/file/d/${googleDriveVideo.fileId}/preview${
-      search ? `?${search}` : ""
-    }`;
-    aspectRatio = { w: 560, h: 315 };
-    embeddedLinkCache.set(originalLink, {
-      link,
-      intrinsicSize: aspectRatio,
-      type,
-      sandbox: { allowSameOrigin },
-    });
-    return {
-      link,
-      intrinsicSize: aspectRatio,
-      type,
-      sandbox: { allowSameOrigin },
-    };
-  }
-
   const figmaLink = link.match(RE_FIGMA);
   if (figmaLink) {
     type = "generic";

packages/element/src/flowchart.ts

@@ -7,7 +7,7 @@ import type {
   PendingExcalidrawElements,
 } from "@excalidraw/excalidraw/types";
 
-import { bindBindingElement } from "./binding";
+import { bindLinearElement } from "./binding";
 import { updateElbowArrowPoints } from "./elbowArrow";
 import {
   HEADING_DOWN,
@@ -446,14 +446,8 @@ const createBindingArrow = (
 
   const elementsMap = scene.getNonDeletedElementsMap();
 
-  bindBindingElement(
-    bindingArrow,
-    startBindingElement,
-    "orbit",
-    "start",
-    scene,
-  );
-  bindBindingElement(bindingArrow, endBindingElement, "orbit", "end", scene);
+  bindLinearElement(bindingArrow, startBindingElement, "start", scene);
+  bindLinearElement(bindingArrow, endBindingElement, "end", scene);
 
   const changedElements = new Map<string, OrderedExcalidrawElement>();
   changedElements.set(

packages/element/src/freedraw.ts

@@ -0,0 +1,373 @@
+import { LaserPointer, type Point } from "@excalidraw/laser-pointer";
+
+import {
+  clamp,
+  lineSegment,
+  pointFrom,
+  pointRotateRads,
+  round,
+  type LocalPoint,
+} from "@excalidraw/math";
+
+import getStroke from "perfect-freehand";
+
+import { invariant } from "@excalidraw/common";
+
+import type { GlobalPoint, Radians } from "@excalidraw/math";
+
+import { getElementBounds } from "./bounds";
+
+import type { StrokeOptions } from "perfect-freehand";
+
+import type {
+  ElementsMap,
+  ExcalidrawFreeDrawElement,
+  PointerType,
+} from "./types";
+
+export const STROKE_OPTIONS: Record<
+  PointerType | "default",
+  { streamline: number; simplify: number }
+> = {
+  default: {
+    streamline: 0.35,
+    simplify: 0.1,
+  },
+  mouse: {
+    streamline: 0.6,
+    simplify: 0.1,
+  },
+  pen: {
+    // for optimal performance, we use a lower streamline and simplify
+    streamline: 0.2,
+    simplify: 0.1,
+  },
+  touch: {
+    streamline: 0.65,
+    simplify: 0.1,
+  },
+} as const;
+
+export const getFreedrawConfig = (eventType: string | null | undefined) => {
+  return (
+    STROKE_OPTIONS[(eventType as PointerType | null) || "default"] ||
+    STROKE_OPTIONS.default
+  );
+};
+
+/**
+ * Calculates simulated pressure based on velocity between consecutive points.
+ * Fast movement (large distances) -> lower pressure
+ * Slow movement (small distances) -> higher pressure
+ */
+const calculateVelocityBasedPressure = (
+  points: readonly LocalPoint[],
+  index: number,
+  fixedStrokeWidth: boolean | undefined,
+  maxDistance = 8, // Maximum expected distance for normalization
+): number => {
+  if (fixedStrokeWidth) {
+    return 1;
+  }
+
+  // First point gets highest pressure
+  // This avoid "a dot followed by a line" effect, •== when first stroke is "slow"
+  if (index === 0) {
+    return 1;
+  }
+
+  const [x1, y1] = points[index - 1];
+  const [x2, y2] = points[index];
+
+  // Calculate distance between consecutive points
+  const distance = Math.sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2);
+
+  // Normalize distance and invert for pressure (0 = fast/low pressure, 1 = slow/high pressure)
+  const normalizedDistance = Math.min(distance / maxDistance, 1);
+  const basePressure = Math.max(0.1, 1 - normalizedDistance * 0.7); // Range: 0.1 to 1.0
+
+  const constantPressure = 0.5;
+  const pressure = constantPressure + (basePressure - constantPressure);
+
+  return Math.max(0.1, Math.min(1.0, pressure));
+};
+
+export const getFreedrawStroke = (element: ExcalidrawFreeDrawElement) => {
+  // Compose points as [x, y, pressure]
+  let points: [number, number, number][];
+  if (element.freedrawOptions?.fixedStrokeWidth) {
+    points = element.points.map(
+      ([x, y]: LocalPoint): [number, number, number] => [x, y, 1],
+    );
+  } else if (element.simulatePressure) {
+    // Simulate pressure based on velocity between consecutive points
+    points = element.points.map(([x, y]: LocalPoint, i) => [
+      x,
+      y,
+      calculateVelocityBasedPressure(
+        element.points,
+        i,
+        element.freedrawOptions?.fixedStrokeWidth,
+      ),
+    ]);
+  } else {
+    points = element.points.map(([x, y]: LocalPoint, i) => {
+      const rawPressure = element.pressures?.[i] ?? 0.5;
+
+      const amplifiedPressure = Math.pow(rawPressure, 0.6);
+      const adjustedPressure = amplifiedPressure;
+
+      return [x, y, clamp(adjustedPressure, 0.1, 1.0)];
+    });
+  }
+
+  const streamline =
+    element.freedrawOptions?.streamline ?? STROKE_OPTIONS.default.streamline;
+  const simplify =
+    element.freedrawOptions?.simplify ?? STROKE_OPTIONS.default.simplify;
+
+  const laser = new LaserPointer({
+    size: element.strokeWidth,
+    streamline,
+    simplify,
+    sizeMapping: ({ pressure: t }) => {
+      if (element.freedrawOptions?.fixedStrokeWidth) {
+        return 0.6;
+      }
+
+      if (element.simulatePressure) {
+        return 0.2 + t * 0.6;
+      }
+
+      return 0.2 + t * 0.8;
+    },
+  });
+
+  for (const pt of points) {
+    laser.addPoint(pt);
+  }
+  laser.close();
+
+  return laser.getStrokeOutline();
+};
+
+/**
+ * Generates an SVG path for a freedraw element using LaserPointer logic.
+ * Uses actual pressure data if available, otherwise simulates pressure based on velocity.
+ * No streamline, smoothing, or simulation is performed.
+ */
+export const getFreeDrawSvgPath = (
+  element: ExcalidrawFreeDrawElement,
+): string => {
+  // legacy, for backwards compatibility
+  if (element.freedrawOptions === null) {
+    return _legacy_getFreeDrawSvgPath(element);
+  }
+
+  return _transition_getFreeDrawSvgPath(element);
+
+  // return getSvgPathFromStroke(getFreedrawStroke(element));
+};
+
+const roundPoint = (A: Point): string => {
+  return `${round(A[0], 4, "round")},${round(A[1], 4, "round")} `;
+};
+
+const average = (A: Point, B: Point): string => {
+  return `${round((A[0] + B[0]) / 2, 4, "round")},${round(
+    (A[1] + B[1]) / 2,
+    4,
+    "round",
+  )} `;
+};
+
+export const getSvgPathFromStroke = (points: Point[]): string => {
+  const len = points.length;
+
+  if (len < 2) {
+    return "";
+  }
+
+  let a = points[0];
+  let b = points[1];
+
+  if (len === 2) {
+    return `M${roundPoint(a)}L${roundPoint(b)}`;
+  }
+
+  let result = "";
+
+  for (let i = 2, max = len - 1; i < max; i++) {
+    a = points[i];
+    b = points[i + 1];
+    result += average(a, b);
+  }
+
+  return `M${roundPoint(points[0])}Q${roundPoint(points[1])}${average(
+    points[1],
+    points[2],
+  )}${points.length > 3 ? "T" : ""}${result}L${roundPoint(points[len - 1])}`;
+};
+
+function _transition_getFreeDrawSvgPath(element: ExcalidrawFreeDrawElement) {
+  const inputPoints = element.simulatePressure
+    ? element.points
+    : element.points.length
+    ? element.points.map(([x, y], i) => [x, y, element.pressures[i]])
+    : [[0, 0, 0.5]];
+
+  // Consider changing the options for simulated pressure vs real pressure
+  const options: StrokeOptions = {
+    simulatePressure: element.simulatePressure,
+    size: element.strokeWidth,
+    thinning: 0.6,
+    smoothing: 0.5,
+    streamline: 0.5,
+    easing: (t) => {
+      if (element.freedrawOptions?.fixedStrokeWidth) {
+        return 0.5;
+      }
+
+      return Math.sin((t * Math.PI) / 2) * 0.65;
+    }, // https://easings.net/#easeOutSine
+    last: !!element.lastCommittedPoint, // LastCommittedPoint is added on pointerup
+  };
+
+  return _legacy_getSvgPathFromStroke(
+    getStroke(inputPoints as number[][], options),
+  );
+}
+
+function _legacy_getFreeDrawSvgPath(element: ExcalidrawFreeDrawElement) {
+  // If input points are empty (should they ever be?) return a dot
+  const inputPoints = element.simulatePressure
+    ? element.points
+    : element.points.length
+    ? element.points.map(([x, y], i) => [x, y, element.pressures[i]])
+    : [[0, 0, 0.5]];
+
+  // Consider changing the options for simulated pressure vs real pressure
+  const options: StrokeOptions = {
+    simulatePressure: element.simulatePressure,
+    size: element.strokeWidth * 4.25,
+    thinning: 0.6,
+    smoothing: 0.5,
+    streamline: 0.5,
+    easing: (t) => Math.sin((t * Math.PI) / 2), // https://easings.net/#easeOutSine
+    last: !!element.lastCommittedPoint, // LastCommittedPoint is added on pointerup
+  };
+
+  return _legacy_getSvgPathFromStroke(
+    getStroke(inputPoints as number[][], options),
+  );
+}
+
+const med = (A: number[], B: number[]) => {
+  return [(A[0] + B[0]) / 2, (A[1] + B[1]) / 2];
+};
+
+// Trim SVG path data so number are each two decimal points. This
+// improves SVG exports, and prevents rendering errors on points
+// with long decimals.
+const TO_FIXED_PRECISION = /(\s?[A-Z]?,?-?[0-9]*\.[0-9]{0,2})(([0-9]|e|-)*)/g;
+
+const _legacy_getSvgPathFromStroke = (points: number[][]): string => {
+  if (!points.length) {
+    return "";
+  }
+
+  const max = points.length - 1;
+
+  return points
+    .reduce(
+      (acc, point, i, arr) => {
+        if (i === max) {
+          acc.push(point, med(point, arr[0]), "L", arr[0], "Z");
+        } else {
+          acc.push(point, med(point, arr[i + 1]));
+        }
+        return acc;
+      },
+      ["M", points[0], "Q"],
+    )
+    .join(" ")
+    .replace(TO_FIXED_PRECISION, "$1");
+};
+
+export function getFreedrawOutlineAsSegments(
+  element: ExcalidrawFreeDrawElement,
+  points: [number, number][],
+  elementsMap: ElementsMap,
+) {
+  const bounds = getElementBounds(
+    {
+      ...element,
+      angle: 0 as Radians,
+    },
+    elementsMap,
+  );
+  const center = pointFrom<GlobalPoint>(
+    (bounds[0] + bounds[2]) / 2,
+    (bounds[1] + bounds[3]) / 2,
+  );
+
+  invariant(points.length >= 2, "Freepath outline must have at least 2 points");
+
+  return points.slice(2).reduce(
+    (acc, curr) => {
+      acc.push(
+        lineSegment<GlobalPoint>(
+          acc[acc.length - 1][1],
+          pointRotateRads(
+            pointFrom<GlobalPoint>(curr[0] + element.x, curr[1] + element.y),
+            center,
+            element.angle,
+          ),
+        ),
+      );
+      return acc;
+    },
+    [
+      lineSegment<GlobalPoint>(
+        pointRotateRads(
+          pointFrom<GlobalPoint>(
+            points[0][0] + element.x,
+            points[0][1] + element.y,
+          ),
+          center,
+          element.angle,
+        ),
+        pointRotateRads(
+          pointFrom<GlobalPoint>(
+            points[1][0] + element.x,
+            points[1][1] + element.y,
+          ),
+          center,
+          element.angle,
+        ),
+      ),
+    ],
+  );
+}
+
+export function getFreedrawOutlinePoints(element: ExcalidrawFreeDrawElement) {
+  // If input points are empty (should they ever be?) return a dot
+  const inputPoints = element.simulatePressure
+    ? element.points
+    : element.points.length
+    ? element.points.map(([x, y], i) => [x, y, element.pressures[i]])
+    : [[0, 0, 0.5]];
+
+  // Consider changing the options for simulated pressure vs real pressure
+  const options: StrokeOptions = {
+    simulatePressure: element.simulatePressure,
+    size: element.strokeWidth * 4.25,
+    thinning: 0.6,
+    smoothing: 0.5,
+    streamline: 0.5,
+    easing: (t) => Math.sin((t * Math.PI) / 2), // https://easings.net/#easeOutSine
+    last: !!element.lastCommittedPoint, // LastCommittedPoint is added on pointerup
+  };
+
+  return getStroke(inputPoints as number[][], options) as [number, number][];
+}

packages/element/src/heading.ts

@@ -1,9 +1,4 @@
-import {
-  invariant,
-  isDevEnv,
-  isTestEnv,
-  type Bounds,
-} from "@excalidraw/common";
+import { invariant, isDevEnv, isTestEnv } from "@excalidraw/common";
 
 import {
   pointFrom,
@@ -24,7 +19,7 @@ import type {
   Vector,
 } from "@excalidraw/math";
 
-import { getCenterForBounds } from "./bounds";
+import { getCenterForBounds, type Bounds } from "./bounds";
 
 import type { ExcalidrawBindableElement } from "./types";
 

packages/element/src/index.ts

@@ -1,6 +1,7 @@
 import { toIterable } from "@excalidraw/common";
 
 import { isInvisiblySmallElement } from "./sizeHelpers";
+import { isLinearElementType } from "./typeChecks";
 
 import type {
   ExcalidrawElement,
@@ -54,6 +55,27 @@ export const isNonDeletedElement = <T extends ExcalidrawElement>(
   element: T,
 ): element is NonDeleted<T> => !element.isDeleted;
 
+const _clearElements = (
+  elements: readonly ExcalidrawElement[],
+): ExcalidrawElement[] =>
+  getNonDeletedElements(elements).map((element) =>
+    isLinearElementType(element.type)
+      ? { ...element, lastCommittedPoint: null }
+      : element,
+  );
+
+export const clearElementsForDatabase = (
+  elements: readonly ExcalidrawElement[],
+) => _clearElements(elements);
+
+export const clearElementsForExport = (
+  elements: readonly ExcalidrawElement[],
+) => _clearElements(elements);
+
+export const clearElementsForLocalStorage = (
+  elements: readonly ExcalidrawElement[],
+) => _clearElements(elements);
+
 export * from "./align";
 export * from "./binding";
 export * from "./bounds";
@@ -70,9 +92,9 @@ export * from "./elbowArrow";
 export * from "./elementLink";
 export * from "./embeddable";
 export * from "./flowchart";
-export * from "./arrows/focus";
 export * from "./fractionalIndex";
 export * from "./frame";
+export * from "./freedraw";
 export * from "./groups";
 export * from "./heading";
 export * from "./image";
@@ -93,10 +115,7 @@ export * from "./store";
 export * from "./textElement";
 export * from "./textMeasurements";
 export * from "./textWrapping";
-export * from "./transform";
 export * from "./transformHandles";
 export * from "./typeChecks";
 export * from "./utils";
 export * from "./zindex";
-export * from "./arrows/helpers";
-export * from "./arrowheads";

packages/element/src/mutateElement.ts

@@ -40,21 +40,22 @@ export const mutateElement = <TElement extends Mutable<ExcalidrawElement>>(
   updates: ElementUpdate<TElement>,
   options?: {
     isDragging?: boolean;
-    isBindingEnabled?: boolean;
-    isMidpointSnappingEnabled?: boolean;
   },
 ) => {
   let didChange = false;
 
   // casting to any because can't use `in` operator
   // (see https://github.com/microsoft/TypeScript/issues/21732)
-  const { points, fixedSegments, fileId } = updates as any;
+  const { points, fixedSegments, startBinding, endBinding, fileId } =
+    updates as any;
 
   if (
     isElbowArrow(element) &&
     (Object.keys(updates).length === 0 || // normalization case
       typeof points !== "undefined" || // repositioning
-      typeof fixedSegments !== "undefined") // segment fixing
+      typeof fixedSegments !== "undefined" || // segment fixing
+      typeof startBinding !== "undefined" ||
+      typeof endBinding !== "undefined") // manual binding to element
   ) {
     updates = {
       ...updates,

packages/element/src/newElement.ts

@@ -445,6 +445,7 @@ export const newFreeDrawElement = (
     points?: ExcalidrawFreeDrawElement["points"];
     simulatePressure: boolean;
     pressures?: ExcalidrawFreeDrawElement["pressures"];
+    strokeOptions?: ExcalidrawFreeDrawElement["freedrawOptions"];
   } & ElementConstructorOpts,
 ): NonDeleted<ExcalidrawFreeDrawElement> => {
   return {
@@ -452,6 +453,12 @@ export const newFreeDrawElement = (
     points: opts.points || [],
     pressures: opts.pressures || [],
     simulatePressure: opts.simulatePressure,
+    lastCommittedPoint: null,
+    freedrawOptions: opts.strokeOptions || {
+      fixedStrokeWidth: true,
+      streamline: 0.25,
+      simplify: 0.1,
+    },
   };
 };
 
@@ -465,7 +472,7 @@ export const newLinearElement = (
   const element = {
     ..._newElementBase<ExcalidrawLinearElement>(opts.type, opts),
     points: opts.points || [],
-
+    lastCommittedPoint: null,
     startBinding: null,
     endBinding: null,
     startArrowhead: null,
@@ -500,6 +507,7 @@ export const newArrowElement = <T extends boolean>(
     return {
       ..._newElementBase<ExcalidrawElbowArrowElement>(opts.type, opts),
       points: opts.points || [],
+      lastCommittedPoint: null,
       startBinding: null,
       endBinding: null,
       startArrowhead: opts.startArrowhead || null,
@@ -514,6 +522,7 @@ export const newArrowElement = <T extends boolean>(
   return {
     ..._newElementBase<ExcalidrawArrowElement>(opts.type, opts),
     points: opts.points || [],
+    lastCommittedPoint: null,
     startBinding: null,
     endBinding: null,
     startArrowhead: opts.startArrowhead || null,

packages/element/src/renderElement.ts

@@ -1,29 +1,18 @@
 import rough from "roughjs/bin/rough";
 
-import {
-  type GlobalPoint,
-  isRightAngleRads,
-  lineSegment,
-  pointFrom,
-  pointRotateRads,
-  type Radians,
-} from "@excalidraw/math";
+import { isRightAngleRads } from "@excalidraw/math";
 
 import {
   BOUND_TEXT_PADDING,
   DEFAULT_REDUCED_GLOBAL_ALPHA,
   ELEMENT_READY_TO_ERASE_OPACITY,
   FRAME_STYLE,
-  DARK_THEME_FILTER,
   MIME_TYPES,
   THEME,
   distance,
   getFontString,
   isRTL,
   getVerticalOffset,
-  invariant,
-  applyDarkModeFilter,
-  isSafari,
 } from "@excalidraw/common";
 
 import type {
@@ -42,7 +31,7 @@ import type {
   InteractiveCanvasRenderConfig,
 } from "@excalidraw/excalidraw/scene/types";
 
-import { getElementAbsoluteCoords, getElementBounds } from "./bounds";
+import { getElementAbsoluteCoords } from "./bounds";
 import { getUncroppedImageElement } from "./cropElement";
 import { LinearElementEditor } from "./linearElementEditor";
 import {
@@ -68,6 +57,8 @@ import { getCornerRadius } from "./utils";
 
 import { ShapeCache } from "./shape";
 
+import { getFreeDrawSvgPath } from "./freedraw";
+
 import type {
   ExcalidrawElement,
   ExcalidrawTextElement,
@@ -82,6 +73,13 @@ import type {
 
 import type { RoughCanvas } from "roughjs/bin/canvas";
 
+// using a stronger invert (100% vs our regular 93%) and saturate
+// as a temp hack to make images in dark theme look closer to original
+// color scheme (it's still not quite there and the colors look slightly
+// desatured, alas...)
+export const IMAGE_INVERT_FILTER =
+  "invert(100%) hue-rotate(180deg) saturate(1.25)";
+
 const isPendingImageElement = (
   element: ExcalidrawElement,
   renderConfig: StaticCanvasRenderConfig,
@@ -89,6 +87,19 @@ const isPendingImageElement = (
   isInitializedImageElement(element) &&
   !renderConfig.imageCache.has(element.fileId);
 
+const shouldResetImageFilter = (
+  element: ExcalidrawElement,
+  renderConfig: StaticCanvasRenderConfig,
+  appState: StaticCanvasAppState,
+) => {
+  return (
+    appState.theme === THEME.DARK &&
+    isInitializedImageElement(element) &&
+    !isPendingImageElement(element, renderConfig) &&
+    renderConfig.imageCache.get(element.fileId)?.mimeType !== MIME_TYPES.svg
+  );
+};
+
 const getCanvasPadding = (element: ExcalidrawElement) => {
   switch (element.type) {
     case "freedraw":
@@ -206,7 +217,7 @@ const generateElementCanvas = (
   elementsMap: NonDeletedSceneElementsMap,
   zoom: Zoom,
   renderConfig: StaticCanvasRenderConfig,
-  appState: StaticCanvasAppState | InteractiveCanvasAppState,
+  appState: StaticCanvasAppState,
 ): ExcalidrawElementWithCanvas | null => {
   const canvas = document.createElement("canvas");
   const context = canvas.getContext("2d")!;
@@ -253,7 +264,12 @@ const generateElementCanvas = (
 
   const rc = rough.canvas(canvas);
 
-  drawElementOnCanvas(element, rc, context, renderConfig);
+  // in dark theme, revert the image color filter
+  if (shouldResetImageFilter(element, renderConfig, appState)) {
+    context.filter = IMAGE_INVERT_FILTER;
+  }
+
+  drawElementOnCanvas(element, rc, context, renderConfig, appState);
 
   context.restore();
 
@@ -361,9 +377,8 @@ IMAGE_ERROR_PLACEHOLDER_IMG.src = `data:${MIME_TYPES.svg},${encodeURIComponent(
 const drawImagePlaceholder = (
   element: ExcalidrawImageElement,
   context: CanvasRenderingContext2D,
-  theme: StaticCanvasRenderConfig["theme"],
 ) => {
-  context.fillStyle = theme === THEME.DARK ? "#2E2E2E" : "#E7E7E7";
+  context.fillStyle = "#E7E7E7";
   context.fillRect(0, 0, element.width, element.height);
 
   const imageMinWidthOrHeight = Math.min(element.width, element.height);
@@ -389,6 +404,7 @@ const drawElementOnCanvas = (
   rc: RoughCanvas,
   context: CanvasRenderingContext2D,
   renderConfig: StaticCanvasRenderConfig,
+  appState: StaticCanvasAppState,
 ) => {
   switch (element.type) {
     case "rectangle":
@@ -398,8 +414,7 @@ const drawElementOnCanvas = (
     case "ellipse": {
       context.lineJoin = "round";
       context.lineCap = "round";
-
-      rc.draw(ShapeCache.generateElementShape(element, renderConfig));
+      rc.draw(ShapeCache.get(element)!);
       break;
     }
     case "arrow":
@@ -407,44 +422,33 @@ const drawElementOnCanvas = (
       context.lineJoin = "round";
       context.lineCap = "round";
 
-      ShapeCache.generateElementShape(element, renderConfig).forEach(
-        (shape) => {
-          rc.draw(shape);
-        },
-      );
+      ShapeCache.get(element)!.forEach((shape) => {
+        rc.draw(shape);
+      });
       break;
     }
     case "freedraw": {
       // Draw directly to canvas
       context.save();
+      context.fillStyle = element.strokeColor;
 
-      const shapes = ShapeCache.generateElementShape(element, renderConfig);
+      const path = getFreeDrawPath2D(element) as Path2D;
+      const fillShape = ShapeCache.get(element);
 
-      for (const shape of shapes) {
-        if (typeof shape === "string") {
-          context.fillStyle =
-            renderConfig.theme === THEME.DARK
-              ? applyDarkModeFilter(element.strokeColor)
-              : element.strokeColor;
-          context.fill(new Path2D(shape));
-        } else {
-          rc.draw(shape);
-        }
+      if (fillShape) {
+        rc.draw(fillShape);
       }
 
+      context.fillStyle = element.strokeColor;
+      context.fill(path);
+
       context.restore();
       break;
     }
     case "image": {
-      context.save();
-      const cacheEntry =
-        element.fileId !== null
-          ? renderConfig.imageCache.get(element.fileId)
-          : null;
       const img = isInitializedImageElement(element)
-        ? cacheEntry?.image
+        ? renderConfig.imageCache.get(element.fileId)?.image
         : undefined;
-
       if (img != null && !(img instanceof Promise)) {
         if (element.roundness && context.roundRect) {
           context.beginPath();
@@ -467,80 +471,20 @@ const drawElementOnCanvas = (
               height: img.naturalHeight,
             };
 
-        const shouldInvertImage =
-          renderConfig.theme === THEME.DARK &&
-          cacheEntry?.mimeType === MIME_TYPES.svg;
-
-        if (shouldInvertImage && isSafari) {
-          const devicePixelRatio = window.devicePixelRatio || 1;
-          const tempCanvas = document.createElement("canvas");
-          tempCanvas.width = element.width * devicePixelRatio;
-          tempCanvas.height = element.height * devicePixelRatio;
-          const tempContext = tempCanvas.getContext("2d");
-
-          if (tempContext) {
-            tempContext.scale(devicePixelRatio, devicePixelRatio);
-            tempContext.drawImage(
-              img,
-              x,
-              y,
-              width,
-              height,
-              0,
-              0,
-              element.width,
-              element.height,
-            );
-
-            const imageData = tempContext.getImageData(
-              0,
-              0,
-              tempCanvas.width,
-              tempCanvas.height,
-            );
-
-            const data = imageData.data;
-
-            for (let i = 0; i < data.length; i += 4) {
-              data[i] = 255 - data[i];
-              data[i + 1] = 255 - data[i + 1];
-              data[i + 2] = 255 - data[i + 2];
-            }
-
-            tempContext.putImageData(imageData, 0, 0);
-            context.drawImage(
-              tempCanvas,
-              0,
-              0,
-              tempCanvas.width,
-              tempCanvas.height,
-              0,
-              0,
-              element.width,
-              element.height,
-            );
-          }
-        } else {
-          if (shouldInvertImage) {
-            context.filter = DARK_THEME_FILTER;
-          }
-
-          context.drawImage(
-            img,
-            x,
-            y,
-            width,
-            height,
-            0 /* hardcoded for the selection box*/,
-            0,
-            element.width,
-            element.height,
-          );
-        }
+        context.drawImage(
+          img,
+          x,
+          y,
+          width,
+          height,
+          0 /* hardcoded for the selection box*/,
+          0,
+          element.width,
+          element.height,
+        );
       } else {
-        drawImagePlaceholder(element, context, renderConfig.theme);
+        drawImagePlaceholder(element, context);
       }
-      context.restore();
       break;
     }
     default: {
@@ -555,10 +499,7 @@ const drawElementOnCanvas = (
         context.canvas.setAttribute("dir", rtl ? "rtl" : "ltr");
         context.save();
         context.font = getFontString(element);
-        context.fillStyle =
-          renderConfig.theme === THEME.DARK
-            ? applyDarkModeFilter(element.strokeColor)
-            : element.strokeColor;
+        context.fillStyle = element.strokeColor;
         context.textAlign = element.textAlign as CanvasTextAlign;
 
         // Canvas does not support multiline text by default
@@ -609,7 +550,7 @@ const generateElementWithCanvas = (
   element: NonDeletedExcalidrawElement,
   elementsMap: NonDeletedSceneElementsMap,
   renderConfig: StaticCanvasRenderConfig,
-  appState: StaticCanvasAppState | InteractiveCanvasAppState,
+  appState: StaticCanvasAppState,
 ) => {
   const zoom: Zoom = renderConfig
     ? appState.zoom
@@ -666,7 +607,7 @@ const drawElementFromCanvas = (
   elementWithCanvas: ExcalidrawElementWithCanvas,
   context: CanvasRenderingContext2D,
   renderConfig: StaticCanvasRenderConfig,
-  appState: StaticCanvasAppState | InteractiveCanvasAppState,
+  appState: StaticCanvasAppState,
   allElementsMap: NonDeletedSceneElementsMap,
 ) => {
   const element = elementWithCanvas.element;
@@ -784,7 +725,7 @@ export const renderElement = (
   rc: RoughCanvas,
   context: CanvasRenderingContext2D,
   renderConfig: StaticCanvasRenderConfig,
-  appState: StaticCanvasAppState | InteractiveCanvasAppState,
+  appState: StaticCanvasAppState,
 ) => {
   const reduceAlphaForSelection =
     appState.openDialog?.name === "elementLinkSelector" &&
@@ -811,17 +752,12 @@ export const renderElement = (
         context.fillStyle = "rgba(0, 0, 200, 0.04)";
 
         context.lineWidth = FRAME_STYLE.strokeWidth / appState.zoom.value;
-        context.strokeStyle =
-          appState.theme === THEME.DARK
-            ? applyDarkModeFilter(FRAME_STYLE.strokeColor)
-            : FRAME_STYLE.strokeColor;
+        context.strokeStyle = FRAME_STYLE.strokeColor;
 
         // TODO change later to only affect AI frames
         if (isMagicFrameElement(element)) {
           context.strokeStyle =
-            appState.theme === THEME.LIGHT
-              ? "#7affd7"
-              : applyDarkModeFilter("#1d8264");
+            appState.theme === THEME.LIGHT ? "#7affd7" : "#1d8264";
         }
 
         if (FRAME_STYLE.radius && context.roundRect) {
@@ -844,6 +780,11 @@ export const renderElement = (
       break;
     }
     case "freedraw": {
+      // TODO investigate if we can do this in situ. Right now we need to call
+      // beforehand because math helpers (such as getElementAbsoluteCoords)
+      // rely on existing shapes
+      ShapeCache.generateElementShape(element, null);
+
       if (renderConfig.isExporting) {
         const [x1, y1, x2, y2] = getElementAbsoluteCoords(element, elementsMap);
         const cx = (x1 + x2) / 2 + appState.scrollX;
@@ -854,7 +795,7 @@ export const renderElement = (
         context.translate(cx, cy);
         context.rotate(element.angle);
         context.translate(-shiftX, -shiftY);
-        drawElementOnCanvas(element, rc, context, renderConfig);
+        drawElementOnCanvas(element, rc, context, renderConfig, appState);
         context.restore();
       } else {
         const elementWithCanvas = generateElementWithCanvas(
@@ -887,6 +828,10 @@ export const renderElement = (
     case "text":
     case "iframe":
     case "embeddable": {
+      // TODO investigate if we can do this in situ. Right now we need to call
+      // beforehand because math helpers (such as getElementAbsoluteCoords)
+      // rely on existing shapes
+      ShapeCache.generateElementShape(element, renderConfig);
       if (renderConfig.isExporting) {
         const [x1, y1, x2, y2] = getElementAbsoluteCoords(element, elementsMap);
         const cx = (x1 + x2) / 2 + appState.scrollX;
@@ -909,6 +854,9 @@ export const renderElement = (
         context.save();
         context.translate(cx, cy);
 
+        if (shouldResetImageFilter(element, renderConfig, appState)) {
+          context.filter = "none";
+        }
         const boundTextElement = getBoundTextElement(element, elementsMap);
 
         if (isArrowElement(element) && boundTextElement) {
@@ -940,7 +888,13 @@ export const renderElement = (
 
           tempCanvasContext.translate(-shiftX, -shiftY);
 
-          drawElementOnCanvas(element, tempRc, tempCanvasContext, renderConfig);
+          drawElementOnCanvas(
+            element,
+            tempRc,
+            tempCanvasContext,
+            renderConfig,
+            appState,
+          );
 
           tempCanvasContext.translate(shiftX, shiftY);
 
@@ -979,7 +933,7 @@ export const renderElement = (
           }
 
           context.translate(-shiftX, -shiftY);
-          drawElementOnCanvas(element, rc, context, renderConfig);
+          drawElementOnCanvas(element, rc, context, renderConfig, appState);
         }
 
         context.restore();
@@ -1071,58 +1025,15 @@ export const renderElement = (
   context.globalAlpha = 1;
 };
 
-export function getFreedrawOutlineAsSegments(
-  element: ExcalidrawFreeDrawElement,
-  points: [number, number][],
-  elementsMap: ElementsMap,
-) {
-  const bounds = getElementBounds(
-    {
-      ...element,
-      angle: 0 as Radians,
-    },
-    elementsMap,
-  );
-  const center = pointFrom<GlobalPoint>(
-    (bounds[0] + bounds[2]) / 2,
-    (bounds[1] + bounds[3]) / 2,
-  );
+export const pathsCache = new WeakMap<ExcalidrawFreeDrawElement, Path2D>([]);
 
-  invariant(points.length >= 2, "Freepath outline must have at least 2 points");
-
-  return points.slice(2).reduce(
-    (acc, curr) => {
-      acc.push(
-        lineSegment<GlobalPoint>(
-          acc[acc.length - 1][1],
-          pointRotateRads(
-            pointFrom<GlobalPoint>(curr[0] + element.x, curr[1] + element.y),
-            center,
-            element.angle,
-          ),
-        ),
-      );
-      return acc;
-    },
-    [
-      lineSegment<GlobalPoint>(
-        pointRotateRads(
-          pointFrom<GlobalPoint>(
-            points[0][0] + element.x,
-            points[0][1] + element.y,
-          ),
-          center,
-          element.angle,
-        ),
-        pointRotateRads(
-          pointFrom<GlobalPoint>(
-            points[1][0] + element.x,
-            points[1][1] + element.y,
-          ),
-          center,
-          element.angle,
-        ),
-      ),
-    ],
-  );
+export function generateFreeDrawShape(element: ExcalidrawFreeDrawElement) {
+  const svgPathData = getFreeDrawSvgPath(element);
+  const path = new Path2D(svgPathData);
+  pathsCache.set(element, path);
+  return path;
+}
+
+export function getFreeDrawPath2D(element: ExcalidrawFreeDrawElement) {
+  return pathsCache.get(element);
 }

packages/element/src/resizeElements.ts

@@ -20,11 +20,7 @@ import type { PointerDownState } from "@excalidraw/excalidraw/types";
 
 import type { Mutable } from "@excalidraw/common/utility-types";
 
-import {
-  getArrowLocalFixedPoints,
-  unbindBindingElement,
-  updateBoundElements,
-} from "./binding";
+import { getArrowLocalFixedPoints, updateBoundElements } from "./binding";
 import {
   getElementAbsoluteCoords,
   getCommonBounds,
@@ -50,7 +46,6 @@ import {
 import { wrapText } from "./textWrapping";
 import {
   isArrowElement,
-  isBindingElement,
   isBoundToContainer,
   isElbowArrow,
   isFrameLikeElement,
@@ -79,9 +74,7 @@ import type {
   ExcalidrawImageElement,
   ElementsMap,
   ExcalidrawElbowArrowElement,
-  ExcalidrawArrowElement,
 } from "./types";
-import type { ElementUpdate } from "./mutateElement";
 
 // Returns true when transform (resizing/rotation) happened
 export const transformElements = (
@@ -227,25 +220,7 @@ const rotateSingleElement = (
   }
   const boundTextElementId = getBoundTextElementId(element);
 
-  let update: ElementUpdate<NonDeletedExcalidrawElement> = {
-    angle,
-  };
-
-  if (isBindingElement(element)) {
-    update = {
-      ...update,
-    } as ElementUpdate<ExcalidrawArrowElement>;
-
-    if (element.startBinding) {
-      unbindBindingElement(element, "start", scene);
-    }
-    if (element.endBinding) {
-      unbindBindingElement(element, "end", scene);
-    }
-  }
-
-  scene.mutateElement(element, update);
-
+  scene.mutateElement(element, { angle });
   if (boundTextElementId) {
     const textElement =
       scene.getElement<ExcalidrawTextElementWithContainer>(boundTextElementId);
@@ -419,11 +394,6 @@ const rotateMultipleElements = (
     centerAngle -= centerAngle % SHIFT_LOCKING_ANGLE;
   }
 
-  const rotatedElementsMap = new Map<
-    ExcalidrawElement["id"],
-    NonDeletedExcalidrawElement
-  >(elements.map((element) => [element.id, element]));
-
   for (const element of elements) {
     if (!isFrameLikeElement(element)) {
       const [x1, y1, x2, y2] = getElementAbsoluteCoords(element, elementsMap);
@@ -454,19 +424,6 @@ const rotateMultipleElements = (
         simultaneouslyUpdated: elements,
       });
 
-      if (isBindingElement(element)) {
-        if (element.startBinding) {
-          if (!rotatedElementsMap.has(element.startBinding.elementId)) {
-            unbindBindingElement(element, "start", scene);
-          }
-        }
-        if (element.endBinding) {
-          if (!rotatedElementsMap.has(element.endBinding.elementId)) {
-            unbindBindingElement(element, "end", scene);
-          }
-        }
-      }
-
       const boundText = getBoundTextElement(element, elementsMap);
       if (boundText && !isArrowElement(element)) {
         const { x, y } = computeBoundTextPosition(
@@ -878,32 +835,13 @@ export const resizeSingleElement = (
     Number.isFinite(newOrigin.x) &&
     Number.isFinite(newOrigin.y)
   ) {
-    let updates: ElementUpdate<ExcalidrawElement> = {
+    const updates = {
       ...newOrigin,
       width: Math.abs(nextWidth),
       height: Math.abs(nextHeight),
       ...rescaledPoints,
     };
 
-    if (isBindingElement(latestElement)) {
-      if (latestElement.startBinding) {
-        updates = {
-          ...updates,
-        } as ElementUpdate<ExcalidrawArrowElement>;
-
-        if (latestElement.startBinding) {
-          unbindBindingElement(latestElement, "start", scene);
-        }
-      }
-
-      if (latestElement.endBinding) {
-        updates = {
-          ...updates,
-          endBinding: null,
-        } as ElementUpdate<ExcalidrawArrowElement>;
-      }
-    }
-
     scene.mutateElement(latestElement, updates, {
       informMutation: shouldInformMutation,
       isDragging: false,
@@ -921,7 +859,10 @@ export const resizeSingleElement = (
       shouldMaintainAspectRatio,
     );
 
-    updateBoundElements(latestElement, scene);
+    updateBoundElements(latestElement, scene, {
+      // TODO: confirm with MARK if this actually makes sense
+      newSize: { width: nextWidth, height: nextHeight },
+    });
   }
 };
 
@@ -1455,36 +1396,20 @@ export const resizeMultipleElements = (
     }
 
     const elementsToUpdate = elementsAndUpdates.map(({ element }) => element);
-    const resizedElementsMap = new Map<
-      ExcalidrawElement["id"],
-      NonDeletedExcalidrawElement
-    >(elementsAndUpdates.map(({ element }) => [element.id, element]));
 
     for (const {
       element,
       update: { boundTextFontSize, ...update },
     } of elementsAndUpdates) {
-      const { angle } = update;
+      const { width, height, angle } = update;
 
       scene.mutateElement(element, update);
 
       updateBoundElements(element, scene, {
         simultaneouslyUpdated: elementsToUpdate,
+        newSize: { width, height },
       });
 
-      if (isBindingElement(element)) {
-        if (element.startBinding) {
-          if (!resizedElementsMap.has(element.startBinding.elementId)) {
-            unbindBindingElement(element, "start", scene);
-          }
-        }
-        if (element.endBinding) {
-          if (!resizedElementsMap.has(element.endBinding.elementId)) {
-            unbindBindingElement(element, "end", scene);
-          }
-        }
-      }
-
       const boundTextElement = getBoundTextElement(element, elementsMap);
       if (boundTextElement && boundTextFontSize) {
         scene.mutateElement(boundTextElement, {

packages/element/src/resizeTest.ts

@@ -5,25 +5,22 @@ import {
   type Radians,
 } from "@excalidraw/math";
 
-import {
-  SIDE_RESIZING_THRESHOLD,
-  type EditorInterface,
-} from "@excalidraw/common";
+import { SIDE_RESIZING_THRESHOLD } from "@excalidraw/common";
 
 import type { GlobalPoint, LineSegment, LocalPoint } from "@excalidraw/math";
 
-import type { AppState, Zoom } from "@excalidraw/excalidraw/types";
-import type { Bounds } from "@excalidraw/common";
+import type { AppState, Device, Zoom } from "@excalidraw/excalidraw/types";
 
 import { getElementAbsoluteCoords } from "./bounds";
 import {
   getTransformHandlesFromCoords,
   getTransformHandles,
-  getOmitSidesForEditorInterface,
+  getOmitSidesForDevice,
   canResizeFromSides,
 } from "./transformHandles";
 import { isImageElement, isLinearElement } from "./typeChecks";
 
+import type { Bounds } from "./bounds";
 import type {
   TransformHandleType,
   TransformHandle,
@@ -54,7 +51,7 @@ export const resizeTest = <Point extends GlobalPoint | LocalPoint>(
   y: number,
   zoom: Zoom,
   pointerType: PointerType,
-  editorInterface: EditorInterface,
+  device: Device,
 ): MaybeTransformHandleType => {
   if (!appState.selectedElementIds[element.id]) {
     return false;
@@ -66,7 +63,7 @@ export const resizeTest = <Point extends GlobalPoint | LocalPoint>(
       zoom,
       elementsMap,
       pointerType,
-      getOmitSidesForEditorInterface(editorInterface),
+      getOmitSidesForDevice(device),
     );
 
   if (
@@ -89,7 +86,7 @@ export const resizeTest = <Point extends GlobalPoint | LocalPoint>(
     return filter[0] as TransformHandleType;
   }
 
-  if (canResizeFromSides(editorInterface)) {
+  if (canResizeFromSides(device)) {
     const [x1, y1, x2, y2, cx, cy] = getElementAbsoluteCoords(
       element,
       elementsMap,
@@ -135,7 +132,7 @@ export const getElementWithTransformHandleType = (
   zoom: Zoom,
   pointerType: PointerType,
   elementsMap: ElementsMap,
-  editorInterface: EditorInterface,
+  device: Device,
 ) => {
   return elements.reduce((result, element) => {
     if (result) {
@@ -149,7 +146,7 @@ export const getElementWithTransformHandleType = (
       scenePointerY,
       zoom,
       pointerType,
-      editorInterface,
+      device,
     );
     return transformHandleType ? { element, transformHandleType } : null;
   }, null as { element: NonDeletedExcalidrawElement; transformHandleType: MaybeTransformHandleType } | null);
@@ -163,14 +160,14 @@ export const getTransformHandleTypeFromCoords = <
   scenePointerY: number,
   zoom: Zoom,
   pointerType: PointerType,
-  editorInterface: EditorInterface,
+  device: Device,
 ): MaybeTransformHandleType => {
   const transformHandles = getTransformHandlesFromCoords(
     [x1, y1, x2, y2, (x1 + x2) / 2, (y1 + y2) / 2],
     0 as Radians,
     zoom,
     pointerType,
-    getOmitSidesForEditorInterface(editorInterface),
+    getOmitSidesForDevice(device),
   );
 
   const found = Object.keys(transformHandles).find((key) => {
@@ -186,7 +183,7 @@ export const getTransformHandleTypeFromCoords = <
     return found as MaybeTransformHandleType;
   }
 
-  if (canResizeFromSides(editorInterface)) {
+  if (canResizeFromSides(device)) {
     const cx = (x1 + x2) / 2;
     const cy = (y1 + y2) / 2;
 

packages/element/src/selection.ts

@@ -11,7 +11,6 @@ import {
   isBoundToContainer,
   isFrameLikeElement,
   isLinearElement,
-  isTextElement,
 } from "./typeChecks";
 import {
   elementOverlapsWithFrame,
@@ -26,7 +25,6 @@ import type {
   ElementsMap,
   ElementsMapOrArray,
   ExcalidrawElement,
-  NonDeleted,
   NonDeletedExcalidrawElement,
 } from "./types";
 
@@ -290,19 +288,3 @@ export const getSelectionStateForElements = (
     ),
   };
 };
-
-/**
- * Returns editing or single-selected text element, if any.
- */
-export const getActiveTextElement = (
-  selectedElements: readonly NonDeleted<ExcalidrawElement>[],
-  appState: Pick<AppState, "editingTextElement">,
-) => {
-  const activeTextElement =
-    appState.editingTextElement ||
-    (selectedElements.length === 1 &&
-      isTextElement(selectedElements[0]) &&
-      selectedElements[0]);
-
-  return activeTextElement || null;
-};

packages/element/src/textElement.ts

@@ -441,8 +441,7 @@ const VALID_CONTAINER_TYPES = new Set([
 
 export const isValidTextContainer = (element: {
   type: ExcalidrawElementType;
-}): element is ExcalidrawTextContainer =>
-  VALID_CONTAINER_TYPES.has(element.type);
+}) => VALID_CONTAINER_TYPES.has(element.type);
 
 export const computeContainerDimensionForBoundText = (
   dimension: number,

packages/element/src/textWrapping.ts

@@ -4,22 +4,6 @@ import { charWidth, getLineWidth } from "./textMeasurements";
 
 import type { FontString } from "./types";
 
-/**
- * This module approximates browser-like soft wrapping for Excalidraw text.
- *
- * The flow is:
- * 1. `parseTokens()` splits a hard line into breakable tokens using a unicode-aware regex.
- * 2. `getWrappedTextLines()` reflows each hard line into one or more visual lines and
- *    records where each visual line came from in the source text.
- * 3. `wrapLine()` assembles tokens into lines, and `wrapWord()` handles a single token
- *    that is wider than the available width.
- * 4. `trimLine()` / `trimLineEndAtSoftBreak()` mirror browser behavior around trailing
- *    whitespace so the rendered text stays consistent with what users see on canvas.
- *
- * Mostly, you'll want to use wrapText(). getWrappedTextLines() is for callers
- * that need metadata such as mapping visual lines back to `originalText`
- * for caret placement or future editor features.
- */
 let cachedCjkRegex: RegExp | undefined;
 let cachedLineBreakRegex: RegExp | undefined;
 let cachedEmojiRegex: RegExp | undefined;
@@ -374,10 +358,6 @@ const Break = {
 
 /**
  * Breaks the line into the tokens based on the found line break opporutnities.
- *
- * Note: tokenization normalizes to NFC first so decomposed graphemes are treated as
- * their composed variants for wrapping. Any code that needs exact source offsets should
- * keep in mind that this assumes the input text is already NFC-normalized.
  */
 export const parseTokens = (line: string) => {
   const breakLineRegex = getLineBreakRegex();
@@ -390,120 +370,56 @@ export const parseTokens = (line: string) => {
 
 /**
  * Wraps the original text into the lines based on the given width.
- *
- * This is a convenience adapter over `getWrappedTextLines()` for call sites
- * that only need the rendered wrapped string and not the source offsets.
  */
 export const wrapText = (
   text: string,
   font: FontString,
   maxWidth: number,
 ): string => {
-  return getWrappedTextLines(text, font, maxWidth)
-    .map((line) => line.text)
-    .join("\n");
-};
-
-/**
- * A single rendered visual line produced from the original text.
- *
- * `start` and `end` are end-exclusive code-unit offsets into the original text, and do
- * not include synthetic soft line breaks inserted by this module. If trailing whitespace
- * was trimmed away at a wrap boundary, `end` points to the last rendered character.
- */
-export type WrappedTextLine = {
-  text: string;
-  start: number;
-  end: number;
-};
-
-/**
- * Splits only on existing hard line breaks and preserves original offsets.
- */
-const getHardLineBreaks = (text: string): WrappedTextLine[] => {
-  let offset = 0;
-
-  return text.split("\n").map((line) => {
-    const start = offset;
-    const end = start + line.length;
-
-    offset = end + 1;
-
-    return {
-      text: line,
-      start,
-      end,
-    };
-  });
-};
-
-/**
- * Returns the rendered visual lines together with their source offsets.
- *
- * This is the source-of-truth wrapping pipeline for callers that need more than the
- * final wrapped string, for example caret placement or future editor/rich-text mapping.
- */
-export const getWrappedTextLines = (
-  text: string,
-  font: FontString,
-  maxWidth: number,
-): WrappedTextLine[] => {
   // if maxWidth is not finite or NaN which can happen in case of bugs in
   // computation, we need to make sure we don't continue as we'll end up
   // in an infinite loop
   if (!Number.isFinite(maxWidth) || maxWidth < 0) {
-    return getHardLineBreaks(text);
+    return text;
   }
 
-  const lines: WrappedTextLine[] = [];
-  let offset = 0;
+  const lines: Array<string> = [];
+  const originalLines = text.split("\n");
 
-  for (const originalLine of text.split("\n")) {
-    const originalLineWidth = getLineWidth(originalLine, font);
+  for (const originalLine of originalLines) {
+    const currentLineWidth = getLineWidth(originalLine, font);
 
-    if (originalLineWidth <= maxWidth) {
-      lines.push({
-        text: originalLine,
-        start: offset,
-        end: offset + originalLine.length,
-      });
-    } else {
-      lines.push(...wrapLine(originalLine, font, maxWidth, offset));
+    if (currentLineWidth <= maxWidth) {
+      lines.push(originalLine);
+      continue;
     }
 
-    offset += originalLine.length + 1;
+    const wrappedLine = wrapLine(originalLine, font, maxWidth);
+    lines.push(...wrappedLine);
   }
 
-  return lines;
+  return lines.join("\n");
 };
 
 /**
- * Wraps a single hard line into one or more visual lines.
- *
- * The line-local offsets are tracked in original-text code units so
- * we can map the visual line back to the source.
+ * Wraps the original line into the lines based on the given width.
  */
 const wrapLine = (
   line: string,
   font: FontString,
   maxWidth: number,
-  lineStart: number,
-): WrappedTextLine[] => {
-  const lines: WrappedTextLine[] = [];
+): string[] => {
+  const lines: Array<string> = [];
   const tokens = parseTokens(line);
+  const tokenIterator = tokens[Symbol.iterator]();
 
   let currentLine = "";
-  let currentLineStart = lineStart;
-  let currentLineEnd = lineStart;
   let currentLineWidth = 0;
-  // Tracks the next token's code-unit position in the original source string.
-  let tokenOffset = lineStart;
-  let tokenIndex = 0;
 
-  while (tokenIndex < tokens.length) {
-    const token = tokens[tokenIndex];
-    const tokenStart = tokenOffset;
-    const tokenEnd = tokenStart + token.length;
+  let iterator = tokenIterator.next();
+
+  while (!iterator.done) {
+    const token = iterator.value;
     const testLine = currentLine + token;
 
     // cache single codepoint whitespace, CJK or emoji width calc. as kerning should not apply here
@@ -513,59 +429,37 @@ const wrapLine = (
 
     // build up the current line, skipping length check for possibly trailing whitespaces
     if (/\s/.test(token) || testLineWidth <= maxWidth) {
-      if (!currentLine) {
-        currentLineStart = tokenStart;
-      }
       currentLine = testLine;
-      currentLineEnd = tokenEnd;
       currentLineWidth = testLineWidth;
-      tokenOffset = tokenEnd;
-      tokenIndex++;
+      iterator = tokenIterator.next();
       continue;
     }
 
     // current line is empty => just the token (word) is longer than `maxWidth` and needs to be wrapped
     if (!currentLine) {
-      const wrappedWord = wrapWord(token, font, maxWidth, tokenStart);
-      const trailingLine = wrappedWord[wrappedWord.length - 1] ?? {
-        text: "",
-        start: tokenStart,
-        end: tokenStart,
-      };
+      const wrappedWord = wrapWord(token, font, maxWidth);
+      const trailingLine = wrappedWord[wrappedWord.length - 1] ?? "";
       const precedingLines = wrappedWord.slice(0, -1);
 
       lines.push(...precedingLines);
 
       // trailing line of the wrapped word might still be joined with next token/s
-      currentLine = trailingLine.text;
-      currentLineStart = trailingLine.start;
-      currentLineEnd = trailingLine.end;
-      currentLineWidth = getLineWidth(trailingLine.text, font);
-      tokenOffset = tokenEnd;
-      tokenIndex++;
+      currentLine = trailingLine;
+      currentLineWidth = getLineWidth(trailingLine, font);
+      iterator = tokenIterator.next();
     } else {
       // push & reset, but don't iterate on the next token, as we didn't use it yet!
-      lines.push(
-        trimLineEndAtSoftBreak(currentLine, currentLineStart, currentLineEnd),
-      );
+      lines.push(currentLine.trimEnd());
 
       // purposefully not iterating and not setting `currentLine` to `token`, so that we could use a simple !currentLine check above
       currentLine = "";
-      currentLineStart = tokenStart;
-      currentLineEnd = tokenStart;
       currentLineWidth = 0;
     }
   }
 
   // iterator done, push the trailing line if exists
   if (currentLine) {
-    const trailingLine = trimLine(
-      currentLine,
-      currentLineStart,
-      currentLineEnd,
-      font,
-      maxWidth,
-    );
+    const trailingLine = trimLine(currentLine, font, maxWidth);
     lines.push(trailingLine);
   }
 
@@ -573,100 +467,59 @@ const wrapLine = (
 };
 
 /**
- * Wraps a single word that could not be placed on an empty line as-is.
+ * Wraps the word into the lines based on the given width.
  */
 const wrapWord = (
   word: string,
   font: FontString,
   maxWidth: number,
-  wordStart: number,
-): WrappedTextLine[] => {
+): Array<string> => {
   // multi-codepoint emojis are already broken apart and shouldn't be broken further
   if (getEmojiRegex().test(word)) {
-    return [
-      {
-        text: word,
-        start: wordStart,
-        end: wordStart + word.length,
-      },
-    ];
+    return [word];
   }
 
   satisfiesWordInvariant(word);
 
-  const lines: WrappedTextLine[] = [];
+  const lines: Array<string> = [];
   const chars = Array.from(word);
 
   let currentLine = "";
-  let currentLineStart = wordStart;
-  let currentLineEnd = wordStart;
   let currentLineWidth = 0;
-  let offset = wordStart;
 
   for (const char of chars) {
-    const charStart = offset;
-    const charEnd = charStart + char.length;
     const _charWidth = charWidth.calculate(char, font);
     const testLineWidth = currentLineWidth + _charWidth;
 
     if (testLineWidth <= maxWidth) {
-      if (!currentLine) {
-        currentLineStart = charStart;
-      }
       currentLine = currentLine + char;
-      currentLineEnd = charEnd;
       currentLineWidth = testLineWidth;
-      offset = charEnd;
       continue;
     }
 
     if (currentLine) {
-      lines.push({
-        text: currentLine,
-        start: currentLineStart,
-        end: currentLineEnd,
-      });
+      lines.push(currentLine);
     }
 
     currentLine = char;
-    currentLineStart = charStart;
-    currentLineEnd = charEnd;
     currentLineWidth = _charWidth;
-    offset = charEnd;
   }
 
   if (currentLine) {
-    lines.push({
-      text: currentLine,
-      start: currentLineStart,
-      end: currentLineEnd,
-    });
+    lines.push(currentLine);
   }
 
   return lines;
 };
 
 /**
- * Trims trailing whitespace that is exceeding the `maxWidth`.
- *
- * Used for the trailing visual line of a hard line, where some trailing
- * whitespace may still be visible if it fits into the available width.
+ * Similarly to browsers, does not trim all trailing whitespaces, but only those exceeding the `maxWidth`.
  */
-const trimLine = (
-  line: string,
-  start: number,
-  end: number,
-  font: FontString,
-  maxWidth: number,
-): WrappedTextLine => {
+const trimLine = (line: string, font: FontString, maxWidth: number) => {
   const shouldTrimWhitespaces = getLineWidth(line, font) > maxWidth;
 
   if (!shouldTrimWhitespaces) {
-    return {
-      text: line,
-      start,
-      end,
-    };
+    return line;
   }
 
   // defensively default to `trimeEnd` in case the regex does not match
@@ -690,30 +543,7 @@ const trimLine = (
     trimmedLineWidth = testLineWidth;
   }
 
-  return {
-    text: trimmedLine,
-    start,
-    end: end - (line.length - trimmedLine.length),
-  };
-};
-
-/**
- * Used for internal soft-wrap boundaries, where trailing whitespace should not
- * survive into the rendered line even though it still exists in the original
- * text.
- */
-const trimLineEndAtSoftBreak = (
-  line: string,
-  start: number,
-  end: number,
-): WrappedTextLine => {
-  const trimmedLine = line.trimEnd();
-
-  return {
-    text: trimmedLine,
-    start,
-    end: end - (line.length - trimmedLine.length),
-  };
+  return trimmedLine;
 };
 
 /**

packages/element/src/transformHandles.ts

@@ -1,6 +1,8 @@
 import {
   DEFAULT_TRANSFORM_HANDLE_SPACING,
-  type EditorInterface,
+  isAndroid,
+  isIOS,
+  isMobileOrTablet,
 } from "@excalidraw/common";
 
 import { pointFrom, pointRotateRads } from "@excalidraw/math";
@@ -8,10 +10,10 @@ import { pointFrom, pointRotateRads } from "@excalidraw/math";
 import type { Radians } from "@excalidraw/math";
 
 import type {
+  Device,
   InteractiveCanvasAppState,
   Zoom,
 } from "@excalidraw/excalidraw/types";
-import type { Bounds } from "@excalidraw/common";
 
 import { getElementAbsoluteCoords } from "./bounds";
 import {
@@ -21,6 +23,7 @@ import {
   isLinearElement,
 } from "./typeChecks";
 
+import type { Bounds } from "./bounds";
 import type {
   ElementsMap,
   ExcalidrawElement,
@@ -109,21 +112,20 @@ const generateTransformHandle = (
   return [xx - width / 2, yy - height / 2, width, height];
 };
 
-export const canResizeFromSides = (editorInterface: EditorInterface) => {
-  if (
-    editorInterface.formFactor === "phone" &&
-    editorInterface.userAgent.isMobileDevice
-  ) {
+export const canResizeFromSides = (device: Device) => {
+  if (device.viewport.isMobile) {
+    return false;
+  }
+
+  if (device.isTouchScreen && (isAndroid || isIOS)) {
     return false;
   }
 
   return true;
 };
 
-export const getOmitSidesForEditorInterface = (
-  editorInterface: EditorInterface,
-) => {
-  if (canResizeFromSides(editorInterface)) {
+export const getOmitSidesForDevice = (device: Device) => {
+  if (canResizeFromSides(device)) {
     return DEFAULT_OMIT_SIDES;
   }
 
@@ -328,12 +330,8 @@ export const getTransformHandles = (
 export const hasBoundingBox = (
   elements: readonly NonDeletedExcalidrawElement[],
   appState: InteractiveCanvasAppState,
-  editorInterface: EditorInterface,
 ) => {
-  if (
-    appState.selectedLinearElement?.isEditing ||
-    appState.selectedLinearElement?.isDragging
-  ) {
+  if (appState.selectedLinearElement?.isEditing) {
     return false;
   }
   if (elements.length > 1) {
@@ -350,5 +348,5 @@ export const hasBoundingBox = (
 
   // on mobile/tablet we currently don't show bbox because of resize issues
   // (also prob best for simplicity's sake)
-  return element.points.length > 2 && !editorInterface.userAgent.isMobileDevice;
+  return element.points.length > 2 && !isMobileOrTablet();
 };

packages/element/src/typeChecks.ts

@@ -6,6 +6,7 @@ import type { ElementOrToolType } from "@excalidraw/excalidraw/types";
 
 import type { MarkNonNullable } from "@excalidraw/common/utility-types";
 
+import type { Bounds } from "./bounds";
 import type {
   ExcalidrawElement,
   ExcalidrawTextElement,
@@ -27,6 +28,8 @@ import type {
   ExcalidrawArrowElement,
   ExcalidrawElbowArrowElement,
   ExcalidrawLineElement,
+  PointBinding,
+  FixedPointBinding,
   ExcalidrawFlowchartNodeElement,
   ExcalidrawLinearElementSubType,
 } from "./types";
@@ -160,7 +163,7 @@ export const isLinearElementType = (
 export const isBindingElement = (
   element?: ExcalidrawElement | null,
   includeLocked = true,
-): element is ExcalidrawArrowElement => {
+): element is ExcalidrawLinearElement => {
   return (
     element != null &&
     (!element.locked || includeLocked === true) &&
@@ -355,6 +358,24 @@ export const getDefaultRoundnessTypeForElement = (
   return null;
 };
 
+export const isFixedPointBinding = (
+  binding: PointBinding | FixedPointBinding,
+): binding is FixedPointBinding => {
+  return (
+    Object.hasOwn(binding, "fixedPoint") &&
+    (binding as FixedPointBinding).fixedPoint != null
+  );
+};
+
+// TODO: Move this to @excalidraw/math
+export const isBounds = (box: unknown): box is Bounds =>
+  Array.isArray(box) &&
+  box.length === 4 &&
+  typeof box[0] === "number" &&
+  typeof box[1] === "number" &&
+  typeof box[2] === "number" &&
+  typeof box[3] === "number";
+
 export const getLinearElementSubType = (
   element: ExcalidrawLinearElement,
 ): ExcalidrawLinearElementSubType => {

packages/element/src/types.ts

@@ -15,7 +15,7 @@ import type {
   ValueOf,
 } from "@excalidraw/common/utility-types";
 
-export type ChartType = "bar" | "line" | "radar";
+export type ChartType = "bar" | "line";
 export type FillStyle = "hachure" | "cross-hatch" | "solid" | "zigzag";
 export type FontFamilyKeys = keyof typeof FONT_FAMILY;
 export type FontFamilyValues = typeof FONT_FAMILY[FontFamilyKeys];
@@ -279,23 +279,24 @@ export type ExcalidrawTextElementWithContainer = {
 
 export type FixedPoint = [number, number];
 
-export type BindMode = "inside" | "orbit" | "skip";
-
-export type FixedPointBinding = {
+export type PointBinding = {
   elementId: ExcalidrawBindableElement["id"];
-
-  // Represents the fixed point binding information in form of a vertical and
-  // horizontal ratio (i.e. a percentage value in the 0.0-1.0 range). This ratio
-  // gives the user selected fixed point by multiplying the bound element width
-  // with fixedPoint[0] and the bound element height with fixedPoint[1] to get the
-  // bound element-local point coordinate.
-  fixedPoint: FixedPoint;
-
-  // Determines whether the arrow remains outside the shape or is allowed to
-  // go all the way inside the shape up to the exact fixed point.
-  mode: BindMode;
+  focus: number;
+  gap: number;
 };
 
+export type FixedPointBinding = Merge<
+  PointBinding,
+  {
+    // Represents the fixed point binding information in form of a vertical and
+    // horizontal ratio (i.e. a percentage value in the 0.0-1.0 range). This ratio
+    // gives the user selected fixed point by multiplying the bound element width
+    // with fixedPoint[0] and the bound element height with fixedPoint[1] to get the
+    // bound element-local point coordinate.
+    fixedPoint: FixedPoint;
+  }
+>;
+
 type Index = number;
 
 export type PointsPositionUpdates = Map<
@@ -303,39 +304,27 @@ export type PointsPositionUpdates = Map<
   { point: LocalPoint; isDragging?: boolean }
 >;
 
-export type CardinalityArrowhead =
-  | "cardinality_one"
-  | "cardinality_many"
-  | "cardinality_one_or_many"
-  | "cardinality_exactly_one"
-  | "cardinality_zero_or_one"
-  | "cardinality_zero_or_many";
-
-export type ArrowheadLegacy =
-  | "dot"
-  | "crowfoot_one"
-  | "crowfoot_many"
-  | "crowfoot_one_or_many";
-
 export type Arrowhead =
   | "arrow"
   | "bar"
+  | "dot" // legacy. Do not use for new elements.
   | "circle"
   | "circle_outline"
   | "triangle"
   | "triangle_outline"
   | "diamond"
   | "diamond_outline"
-  | CardinalityArrowhead;
-
-export type AnyArrowhead = Arrowhead | ArrowheadLegacy;
+  | "crowfoot_one"
+  | "crowfoot_many"
+  | "crowfoot_one_or_many";
 
 export type ExcalidrawLinearElement = _ExcalidrawElementBase &
   Readonly<{
     type: "line" | "arrow";
     points: readonly LocalPoint[];
-    startBinding: FixedPointBinding | null;
-    endBinding: FixedPointBinding | null;
+    lastCommittedPoint: LocalPoint | null;
+    startBinding: PointBinding | null;
+    endBinding: PointBinding | null;
     startArrowhead: Arrowhead | null;
     endArrowhead: Arrowhead | null;
   }>;
@@ -362,9 +351,9 @@ export type ExcalidrawElbowArrowElement = Merge<
   ExcalidrawArrowElement,
   {
     elbowed: true;
-    fixedSegments: readonly FixedSegment[] | null;
     startBinding: FixedPointBinding | null;
     endBinding: FixedPointBinding | null;
+    fixedSegments: readonly FixedSegment[] | null;
     /**
      * Marks that the 3rd point should be used as the 2nd point of the arrow in
      * order to temporarily hide the first segment of the arrow without losing
@@ -390,6 +379,12 @@ export type ExcalidrawFreeDrawElement = _ExcalidrawElementBase &
     points: readonly LocalPoint[];
     pressures: readonly number[];
     simulatePressure: boolean;
+    lastCommittedPoint: LocalPoint | null;
+    freedrawOptions: {
+      streamline?: number;
+      simplify?: number;
+      fixedStrokeWidth?: boolean;
+    } | null;
   }>;
 
 export type FileId = string & { _brand: "FileId" };

packages/element/src/utils.ts

@@ -1,57 +1,31 @@
 import {
   DEFAULT_ADAPTIVE_RADIUS,
   DEFAULT_PROPORTIONAL_RADIUS,
-  invariant,
   LINE_CONFIRM_THRESHOLD,
   ROUNDNESS,
 } from "@excalidraw/common";
 
 import {
-  bezierEquation,
   curve,
   curveCatmullRomCubicApproxPoints,
   curveOffsetPoints,
   lineSegment,
-  lineSegmentIntersectionPoints,
   pointDistance,
   pointFrom,
   pointFromArray,
-  pointFromVector,
-  pointRotateRads,
-  pointTranslate,
   rectangle,
-  vectorFromPoint,
-  vectorNormalize,
-  vectorScale,
   type GlobalPoint,
 } from "@excalidraw/math";
 
 import type { Curve, LineSegment, LocalPoint } from "@excalidraw/math";
 
-import type {
-  AppState,
-  NormalizedZoomValue,
-  Zoom,
-} from "@excalidraw/excalidraw/types";
+import type { NormalizedZoomValue, Zoom } from "@excalidraw/excalidraw/types";
 
-import { elementCenterPoint, getDiamondPoints } from "./bounds";
+import { getDiamondPoints } from "./bounds";
 
 import { generateLinearCollisionShape } from "./shape";
 
-import { hitElementItself, isPointInElement } from "./collision";
-import { LinearElementEditor } from "./linearElementEditor";
-import { isRectangularElement } from "./typeChecks";
-import { maxBindingDistance_simple } from "./binding";
-
-import {
-  getGlobalFixedPointForBindableElement,
-  normalizeFixedPoint,
-} from "./binding";
-
 import type {
-  ElementsMap,
-  ExcalidrawArrowElement,
-  ExcalidrawBindableElement,
   ExcalidrawDiamondElement,
   ExcalidrawElement,
   ExcalidrawFreeDrawElement,
@@ -341,10 +315,24 @@ export function deconstructRectanguloidElement(
   return shape;
 }
 
-export function getDiamondBaseCorners(
+/**
+ * Get the **unrotated** building components of a diamond element
+ * in the form of line segments and curves as a tuple, in this order.
+ *
+ * @param element The element to deconstruct
+ * @param offset An optional offset
+ * @returns Tuple of line **unrotated** segments (0) and curves (1)
+ */
+export function deconstructDiamondElement(
   element: ExcalidrawDiamondElement,
   offset: number = 0,
-): Curve<GlobalPoint>[] {
+): [LineSegment<GlobalPoint>[], Curve<GlobalPoint>[]] {
+  const cachedShape = getElementShapesCacheEntry(element, offset);
+
+  if (cachedShape) {
+    return cachedShape;
+  }
+
   const [topX, topY, rightX, rightY, bottomX, bottomY, leftX, leftY] =
     getDiamondPoints(element);
   const verticalRadius = element.roundness
@@ -361,7 +349,7 @@ export function getDiamondBaseCorners(
     pointFrom(element.x + leftX, element.y + leftY),
   ];
 
-  return [
+  const baseCorners = [
     curve(
       pointFrom<GlobalPoint>(
         right[0] - verticalRadius,
@@ -411,32 +399,21 @@ export function getDiamondBaseCorners(
       ),
     ), // TOP
   ];
-}
 
-/**
- * Get the **unrotated** building components of a diamond element
- * in the form of line segments and curves as a tuple, in this order.
- *
- * @param element The element to deconstruct
- * @param offset An optional offset
- * @returns Tuple of line **unrotated** segments (0) and curves (1)
- */
-export function deconstructDiamondElement(
-  element: ExcalidrawDiamondElement,
-  offset: number = 0,
-): [LineSegment<GlobalPoint>[], Curve<GlobalPoint>[]] {
-  const cachedShape = getElementShapesCacheEntry(element, offset);
-
-  if (cachedShape) {
-    return cachedShape;
-  }
-
-  const baseCorners = getDiamondBaseCorners(element, offset);
-
-  const corners = baseCorners.map(
-    (corner) =>
-      curveCatmullRomCubicApproxPoints(curveOffsetPoints(corner, offset))!,
-  );
+  const corners =
+    offset > 0
+      ? baseCorners.map(
+          (corner) =>
+            curveCatmullRomCubicApproxPoints(
+              curveOffsetPoints(corner, offset),
+            )!,
+        )
+      : [
+          [baseCorners[0]],
+          [baseCorners[1]],
+          [baseCorners[2]],
+          [baseCorners[3]],
+        ];
 
   const sides = [
     lineSegment<GlobalPoint>(
@@ -504,243 +481,3 @@ export const getCornerRadius = (x: number, element: ExcalidrawElement) => {
 
   return 0;
 };
-
-const getDiagonalsForBindableElement = (
-  element: ExcalidrawElement,
-  elementsMap: ElementsMap,
-) => {
-  // for rectangles, shrink the diagonals a bit because there's something
-  // going on with the focus points around the corners. Ask Mark for details.
-  const OFFSET_PX = element.type === "rectangle" ? 15 : 0;
-  const shrinkSegment = (seg: LineSegment<GlobalPoint>) => {
-    const v = vectorNormalize(vectorFromPoint(seg[1], seg[0]));
-    const offset = vectorScale(v, OFFSET_PX);
-    return lineSegment<GlobalPoint>(
-      pointTranslate(seg[0], offset),
-      pointTranslate(seg[1], vectorScale(offset, -1)),
-    );
-  };
-
-  const center = elementCenterPoint(element, elementsMap);
-  const diagonalOne = shrinkSegment(
-    isRectangularElement(element)
-      ? lineSegment<GlobalPoint>(
-          pointRotateRads(
-            pointFrom<GlobalPoint>(element.x, element.y),
-            center,
-            element.angle,
-          ),
-          pointRotateRads(
-            pointFrom<GlobalPoint>(
-              element.x + element.width,
-              element.y + element.height,
-            ),
-            center,
-            element.angle,
-          ),
-        )
-      : lineSegment<GlobalPoint>(
-          pointRotateRads(
-            pointFrom<GlobalPoint>(element.x + element.width / 2, element.y),
-            center,
-            element.angle,
-          ),
-          pointRotateRads(
-            pointFrom<GlobalPoint>(
-              element.x + element.width / 2,
-              element.y + element.height,
-            ),
-            center,
-            element.angle,
-          ),
-        ),
-  );
-  const diagonalTwo = shrinkSegment(
-    isRectangularElement(element)
-      ? lineSegment<GlobalPoint>(
-          pointRotateRads(
-            pointFrom<GlobalPoint>(element.x + element.width, element.y),
-            center,
-            element.angle,
-          ),
-          pointRotateRads(
-            pointFrom<GlobalPoint>(element.x, element.y + element.height),
-            center,
-            element.angle,
-          ),
-        )
-      : lineSegment<GlobalPoint>(
-          pointRotateRads(
-            pointFrom<GlobalPoint>(element.x, element.y + element.height / 2),
-            center,
-            element.angle,
-          ),
-          pointRotateRads(
-            pointFrom<GlobalPoint>(
-              element.x + element.width,
-              element.y + element.height / 2,
-            ),
-            center,
-            element.angle,
-          ),
-        ),
-  );
-
-  return [diagonalOne, diagonalTwo];
-};
-
-export const getSnapOutlineMidPoint = (
-  point: GlobalPoint,
-  element: ExcalidrawBindableElement,
-  elementsMap: ElementsMap,
-  zoom: AppState["zoom"],
-) => {
-  const center = elementCenterPoint(element, elementsMap);
-  const sideMidpoints =
-    element.type === "diamond"
-      ? getDiamondBaseCorners(element).map((curve) => {
-          const point = bezierEquation(curve, 0.5);
-          const rotatedPoint = pointRotateRads(point, center, element.angle);
-
-          return pointFrom<GlobalPoint>(rotatedPoint[0], rotatedPoint[1]);
-        })
-      : [
-          // RIGHT midpoint
-          pointRotateRads(
-            pointFrom<GlobalPoint>(
-              element.x + element.width,
-              element.y + element.height / 2,
-            ),
-            center,
-            element.angle,
-          ),
-          // BOTTOM midpoint
-          pointRotateRads(
-            pointFrom<GlobalPoint>(
-              element.x + element.width / 2,
-              element.y + element.height,
-            ),
-            center,
-            element.angle,
-          ),
-          // LEFT midpoint
-          pointRotateRads(
-            pointFrom<GlobalPoint>(element.x, element.y + element.height / 2),
-            center,
-            element.angle,
-          ),
-          // TOP midpoint
-          pointRotateRads(
-            pointFrom<GlobalPoint>(element.x + element.width / 2, element.y),
-            center,
-            element.angle,
-          ),
-        ];
-  const candidate = sideMidpoints.find(
-    (midpoint) =>
-      pointDistance(point, midpoint) <=
-        maxBindingDistance_simple(zoom) + element.strokeWidth / 2 &&
-      !hitElementItself({
-        point,
-        element,
-        threshold: 0,
-        elementsMap,
-        overrideShouldTestInside: true,
-      }),
-  );
-
-  return candidate;
-};
-
-export const projectFixedPointOntoDiagonal = (
-  arrow: ExcalidrawArrowElement,
-  point: GlobalPoint,
-  element: ExcalidrawBindableElement,
-  startOrEnd: "start" | "end",
-  elementsMap: ElementsMap,
-  zoom: AppState["zoom"],
-  isMidpointSnappingEnabled: boolean = true,
-): GlobalPoint | null => {
-  invariant(arrow.points.length >= 2, "Arrow must have at least two points");
-  if (arrow.width < 3 && arrow.height < 3) {
-    return null;
-  }
-
-  if (isMidpointSnappingEnabled) {
-    const sideMidPoint = getSnapOutlineMidPoint(
-      point,
-      element,
-      elementsMap,
-      zoom,
-    );
-    if (sideMidPoint) {
-      return sideMidPoint;
-    }
-  }
-
-  // Do the projection onto the diagonals (or center lines
-  // for non-rectangular shapes)
-  const [diagonalOne, diagonalTwo] = getDiagonalsForBindableElement(
-    element,
-    elementsMap,
-  );
-
-  // To avoid working with stale arrow state, we use the opposite focus point
-  // of the current endpoint, which will always be unchanged during moving of
-  // the endpoint. This is only needed when the arrow has only two points.
-  let a = LinearElementEditor.getPointAtIndexGlobalCoordinates(
-    arrow,
-    startOrEnd === "start" ? 1 : arrow.points.length - 2,
-    elementsMap,
-  );
-  if (arrow.points.length === 2) {
-    const otherBinding =
-      startOrEnd === "start" ? arrow.endBinding : arrow.startBinding;
-    const otherBindable =
-      otherBinding &&
-      (elementsMap.get(otherBinding.elementId) as
-        | ExcalidrawBindableElement
-        | undefined);
-    const otherFocusPoint =
-      otherBinding &&
-      otherBindable &&
-      getGlobalFixedPointForBindableElement(
-        normalizeFixedPoint(otherBinding.fixedPoint),
-        otherBindable,
-        elementsMap,
-      );
-    if (otherFocusPoint) {
-      a = otherFocusPoint;
-    }
-  }
-
-  const b = pointFromVector<GlobalPoint>(
-    vectorScale(
-      vectorFromPoint(point, a),
-      2 * pointDistance(a, point) +
-        Math.max(
-          pointDistance(diagonalOne[0], diagonalOne[1]),
-          pointDistance(diagonalTwo[0], diagonalTwo[1]),
-        ),
-    ),
-    a,
-  );
-  const intersector = lineSegment<GlobalPoint>(b, a);
-  const p1 = lineSegmentIntersectionPoints(diagonalOne, intersector);
-  const p2 = lineSegmentIntersectionPoints(diagonalTwo, intersector);
-  const d1 = p1 && pointDistance(a, p1);
-  const d2 = p2 && pointDistance(a, p2);
-
-  let projection = null;
-  if (d1 != null && d2 != null) {
-    projection = d1 < d2 ? p1 : p2;
-  } else {
-    projection = p1 || p2 || null;
-  }
-
-  if (projection && isPointInElement(projection, element, elementsMap)) {
-    return projection;
-  }
-
-  return null;
-};

packages/element/src/zindex.ts

@@ -1,25 +1,18 @@
 import { arrayToMap, findIndex, findLastIndex } from "@excalidraw/common";
 
 import type { AppState } from "@excalidraw/excalidraw/types";
-import type { GlobalPoint } from "@excalidraw/math";
 
-import { isFrameLikeElement, isTextElement } from "./typeChecks";
+import { isFrameLikeElement } from "./typeChecks";
+
 import { getElementsInGroup } from "./groups";
+
 import { syncMovedIndices } from "./fractionalIndex";
+
 import { getSelectedElements } from "./selection";
-import { getBoundTextElement, getContainerElement } from "./textElement";
-import { getHoveredElementForBinding } from "./collision";
 
 import type { Scene } from "./Scene";
-import type {
-  ExcalidrawArrowElement,
-  ExcalidrawElement,
-  ExcalidrawFrameLikeElement,
-  NonDeletedExcalidrawElement,
-  NonDeletedSceneElementsMap,
-  Ordered,
-  OrderedExcalidrawElement,
-} from "./types";
+
+import type { ExcalidrawElement, ExcalidrawFrameLikeElement } from "./types";
 
 const isOfTargetFrame = (element: ExcalidrawElement, frameId: string) => {
   return element.frameId === frameId || element.id === frameId;
@@ -146,50 +139,6 @@ const getContiguousFrameRangeElements = (
   return allElements.slice(rangeStart, rangeEnd + 1);
 };
 
-/**
- * Moves the arrow element above any bindable elements it intersects with or
- * hovers over.
- */
-export const moveArrowAboveBindable = (
-  point: GlobalPoint,
-  arrow: ExcalidrawArrowElement,
-  elements: readonly Ordered<NonDeletedExcalidrawElement>[],
-  elementsMap: NonDeletedSceneElementsMap,
-  scene: Scene,
-  hit?: NonDeletedExcalidrawElement,
-): readonly OrderedExcalidrawElement[] => {
-  const hoveredElement = hit
-    ? hit
-    : getHoveredElementForBinding(point, elements, elementsMap);
-
-  if (!hoveredElement) {
-    return elements;
-  }
-
-  const boundTextElement = getBoundTextElement(hoveredElement, elementsMap);
-  const containerElement = isTextElement(hoveredElement)
-    ? getContainerElement(hoveredElement, elementsMap)
-    : null;
-
-  const bindableIds = [
-    hoveredElement.id,
-    boundTextElement?.id,
-    containerElement?.id,
-  ].filter((id): id is NonDeletedExcalidrawElement["id"] => !!id);
-  const bindableIdx = elements.findIndex((el) => bindableIds.includes(el.id));
-  const arrowIdx = elements.findIndex((el) => el.id === arrow.id);
-
-  if (arrowIdx !== -1 && bindableIdx !== -1 && arrowIdx < bindableIdx) {
-    const updatedElements = Array.from(elements);
-    const arrow = updatedElements.splice(arrowIdx, 1)[0];
-    updatedElements.splice(bindableIdx, 0, arrow);
-
-    scene.replaceAllElements(updatedElements);
-  }
-
-  return elements;
-};
-
 /**
  * Returns next candidate index that's available to be moved to. Currently that
  *  is a non-deleted element, and not inside a group (unless we're editing it).

packages/element/tests/__snapshots__/linearElementEditor.test.tsx.snap

@@ -17,7 +17,7 @@ exports[`Test Linear Elements > Test bound text element > should match styles fo
   class="excalidraw-wysiwyg"
   data-type="wysiwyg"
   dir="auto"
-  style="position: absolute; display: inline-block; min-height: 1em; backface-visibility: hidden; margin: 0px; padding: 0px; border: 0px; outline: 0; resize: none; background: transparent; overflow: hidden; z-index: var(--zIndex-wysiwyg); word-break: break-word; white-space: pre-wrap; overflow-wrap: break-word; box-sizing: content-box; width: 10.5px; height: 26.25px; left: 35px; top: 7.5px; transform: translate(0px, 0px) scale(1) rotate(0deg); text-align: center; vertical-align: middle; color: rgb(30, 30, 30); opacity: 1; max-height: 992.5px; font: Emoji 20px 20px; line-height: 1.25; font-family: Excalifont, Xiaolai, sans-serif, Segoe UI Emoji;"
+  style="position: absolute; display: inline-block; min-height: 1em; backface-visibility: hidden; margin: 0px; padding: 0px; border: 0px; outline: 0; resize: none; background: transparent; overflow: hidden; z-index: var(--zIndex-wysiwyg); word-break: break-word; white-space: pre-wrap; overflow-wrap: break-word; box-sizing: content-box; width: 10.5px; height: 26.25px; left: 35px; top: 7.5px; transform: translate(0px, 0px) scale(1) rotate(0deg); text-align: center; vertical-align: middle; color: rgb(30, 30, 30); opacity: 1; filter: var(--theme-filter); max-height: 992.5px; font: Emoji 20px 20px; line-height: 1.25; font-family: Excalifont, Xiaolai, sans-serif, Segoe UI Emoji;"
   tabindex="0"
   wrap="off"
 />