leave it up to user to terminate looping

* bugfix: put the redo and undo button under the same div so that they look grouped together

* fixed the position of the redo and undo buttons to the right

excalidraw-app/components/ExportToExcalidrawPlus.tsx

@@ -25,6 +25,7 @@ import { MIME_TYPES } from "../../packages/excalidraw/constants";
 import { trackEvent } from "../../packages/excalidraw/analytics";
 import { getFrame } from "../../packages/excalidraw/utils";
 import { ExcalidrawLogo } from "../../packages/excalidraw/components/ExcalidrawLogo";
+import { uploadBytes, ref } from "firebase/storage";
 
 export const exportToExcalidrawPlus = async (
   elements: readonly NonDeletedExcalidrawElement[],
@@ -32,7 +33,7 @@ export const exportToExcalidrawPlus = async (
   files: BinaryFiles,
   name: string,
 ) => {
-  const firebase = await loadFirebaseStorage();
+  const storage = await loadFirebaseStorage();
 
   const id = `${nanoid(12)}`;
 
@@ -49,15 +50,13 @@ export const exportToExcalidrawPlus = async (
     },
   );
 
-  await firebase
+  const storageRef = ref(storage, `/migrations/scenes/${id}`);
-    .storage()
+  await uploadBytes(storageRef, blob, {
-    .ref(`/migrations/scenes/${id}`)
+    customMetadata: {
-    .put(blob, {
+      data: JSON.stringify({ version: 2, name }),
-      customMetadata: {
+      created: Date.now().toString(),
-        data: JSON.stringify({ version: 2, name }),
+    },
-        created: Date.now().toString(),
+  });
-      },
-    });
 
   const filesMap = new Map<FileId, BinaryFileData>();
   for (const element of elements) {

excalidraw-app/data/firebase.ts

@@ -22,9 +22,17 @@ import {
 import { MIME_TYPES } from "../../packages/excalidraw/constants";
 import type { SyncableExcalidrawElement } from ".";
 import { getSyncableElements } from ".";
-import type { ResolutionType } from "../../packages/excalidraw/utility-types";
 import type { Socket } from "socket.io-client";
 import type { RemoteExcalidrawElement } from "../../packages/excalidraw/data/reconcile";
+import { initializeApp } from "firebase/app";
+import {
+  getFirestore,
+  doc,
+  getDoc,
+  runTransaction,
+  Bytes,
+} from "firebase/firestore";
+import { getStorage, ref, uploadBytes } from "firebase/storage";
 
 // private
 // -----------------------------------------------------------------------------
@@ -41,80 +49,42 @@ try {
   FIREBASE_CONFIG = {};
 }
 
-let firebasePromise: Promise<typeof import("firebase/app").default> | null =
+let firebaseApp: ReturnType<typeof initializeApp> | null = null;
-  null;
+let firestore: ReturnType<typeof getFirestore> | null = null;
-let firestorePromise: Promise<any> | null | true = null;
+let firebaseStorage: ReturnType<typeof getStorage> | null = null;
-let firebaseStoragePromise: Promise<any> | null | true = null;
 
-let isFirebaseInitialized = false;
+const _initializeFirebase = () => {
-
+  if (!firebaseApp) {
-const _loadFirebase = async () => {
+    firebaseApp = initializeApp(FIREBASE_CONFIG);
-  const firebase = (
-    await import(/* webpackChunkName: "firebase" */ "firebase/app")
-  ).default;
-
-  if (!isFirebaseInitialized) {
-    try {
-      firebase.initializeApp(FIREBASE_CONFIG);
-    } catch (error: any) {
-      // trying initialize again throws. Usually this is harmless, and happens
-      // mainly in dev (HMR)
-      if (error.code === "app/duplicate-app") {
-        console.warn(error.name, error.code);
-      } else {
-        throw error;
-      }
-    }
-    isFirebaseInitialized = true;
   }
-
+  return firebaseApp;
-  return firebase;
 };
 
-const _getFirebase = async (): Promise<
+const _getFirestore = () => {
-  typeof import("firebase/app").default
+  if (!firestore) {
-> => {
+    firestore = getFirestore(_initializeFirebase());
-  if (!firebasePromise) {
-    firebasePromise = _loadFirebase();
   }
-  return firebasePromise;
+  return firestore;
+};
+
+const _getStorage = () => {
+  if (!firebaseStorage) {
+    firebaseStorage = getStorage(_initializeFirebase());
+  }
+  return firebaseStorage;
 };
 
 // -----------------------------------------------------------------------------
 
-const loadFirestore = async () => {
-  const firebase = await _getFirebase();
-  if (!firestorePromise) {
-    firestorePromise = import(
-      /* webpackChunkName: "firestore" */ "firebase/firestore"
-    );
-  }
-  if (firestorePromise !== true) {
-    await firestorePromise;
-    firestorePromise = true;
-  }
-  return firebase;
-};
-
 export const loadFirebaseStorage = async () => {
-  const firebase = await _getFirebase();
+  return _getStorage();
-  if (!firebaseStoragePromise) {
-    firebaseStoragePromise = import(
-      /* webpackChunkName: "storage" */ "firebase/storage"
-    );
-  }
-  if (firebaseStoragePromise !== true) {
-    await firebaseStoragePromise;
-    firebaseStoragePromise = true;
-  }
-  return firebase;
 };
 
-interface FirebaseStoredScene {
+type FirebaseStoredScene = {
   sceneVersion: number;
-  iv: firebase.default.firestore.Blob;
+  iv: Bytes;
-  ciphertext: firebase.default.firestore.Blob;
+  ciphertext: Bytes;
-}
+};
 
 const encryptElements = async (
   key: string,
@@ -175,7 +145,7 @@ export const saveFilesToFirebase = async ({
   prefix: string;
   files: { id: FileId; buffer: Uint8Array }[];
 }) => {
-  const firebase = await loadFirebaseStorage();
+  const storage = await loadFirebaseStorage();
 
   const erroredFiles: FileId[] = [];
   const savedFiles: FileId[] = [];
@@ -183,17 +153,10 @@ export const saveFilesToFirebase = async ({
   await Promise.all(
     files.map(async ({ id, buffer }) => {
       try {
-        await firebase
+        const storageRef = ref(storage, `${prefix}/${id}`);
-          .storage()
+        await uploadBytes(storageRef, buffer, {
-          .ref(`${prefix}/${id}`)
+          cacheControl: `public, max-age=${FILE_CACHE_MAX_AGE_SEC}`,
-          .put(
+        });
-            new Blob([buffer], {
-              type: MIME_TYPES.binary,
-            }),
-            {
-              cacheControl: `public, max-age=${FILE_CACHE_MAX_AGE_SEC}`,
-            },
-          );
         savedFiles.push(id);
       } catch (error: any) {
         erroredFiles.push(id);
@@ -205,7 +168,6 @@ export const saveFilesToFirebase = async ({
 };
 
 const createFirebaseSceneDocument = async (
-  firebase: ResolutionType<typeof loadFirestore>,
   elements: readonly SyncableExcalidrawElement[],
   roomKey: string,
 ) => {
@@ -213,10 +175,8 @@ const createFirebaseSceneDocument = async (
   const { ciphertext, iv } = await encryptElements(roomKey, elements);
   return {
     sceneVersion,
-    ciphertext: firebase.firestore.Blob.fromUint8Array(
+    ciphertext: Bytes.fromUint8Array(new Uint8Array(ciphertext)),
-      new Uint8Array(ciphertext),
+    iv: Bytes.fromUint8Array(iv),
-    ),
-    iv: firebase.firestore.Blob.fromUint8Array(iv),
   } as FirebaseStoredScene;
 };
 
@@ -236,20 +196,14 @@ export const saveToFirebase = async (
     return null;
   }
 
-  const firebase = await loadFirestore();
+  const firestore = _getFirestore();
-  const firestore = firebase.firestore();
+  const docRef = doc(firestore, "scenes", roomId);
 
-  const docRef = firestore.collection("scenes").doc(roomId);
+  const storedScene = await runTransaction(firestore, async (transaction) => {
-
-  const storedScene = await firestore.runTransaction(async (transaction) => {
     const snapshot = await transaction.get(docRef);
 
-    if (!snapshot.exists) {
+    if (!snapshot.exists()) {
-      const storedScene = await createFirebaseSceneDocument(
+      const storedScene = await createFirebaseSceneDocument(elements, roomKey);
-        firebase,
-        elements,
-        roomKey,
-      );
 
       transaction.set(docRef, storedScene);
 
@@ -269,7 +223,6 @@ export const saveToFirebase = async (
     );
 
     const storedScene = await createFirebaseSceneDocument(
-      firebase,
       reconciledElements,
       roomKey,
     );
@@ -294,15 +247,13 @@ export const loadFromFirebase = async (
   roomKey: string,
   socket: Socket | null,
 ): Promise<readonly SyncableExcalidrawElement[] | null> => {
-  const firebase = await loadFirestore();
+  const firestore = _getFirestore();
-  const db = firebase.firestore();
+  const docRef = doc(firestore, "scenes", roomId);
-
+  const docSnap = await getDoc(docRef);
-  const docRef = db.collection("scenes").doc(roomId);
+  if (!docSnap.exists()) {
-  const doc = await docRef.get();
-  if (!doc.exists) {
     return null;
   }
-  const storedScene = doc.data() as FirebaseStoredScene;
+  const storedScene = docSnap.data() as FirebaseStoredScene;
   const elements = getSyncableElements(
     restoreElements(await decryptElements(storedScene, roomKey), null),
   );

excalidraw-app/package.json

@@ -27,9 +27,9 @@
   },
   "dependencies": {
     "@excalidraw/random-username": "1.0.0",
-    "@sentry/browser": "6.2.5",
+    "@sentry/browser": "9.0.1",
-    "@sentry/integrations": "6.2.5",
+    "callsites": "4.2.0",
-    "firebase": "8.3.3",
+    "firebase": "11.3.1",
     "i18next-browser-languagedetector": "6.1.4",
     "idb-keyval": "6.0.3",
     "jotai": "2.11.0",

excalidraw-app/sentry.ts

@@ -1,8 +1,9 @@
 import * as Sentry from "@sentry/browser";
-import * as SentryIntegrations from "@sentry/integrations";
+import callsites from "callsites";
 
 const SentryEnvHostnameMap: { [key: string]: string } = {
   "excalidraw.com": "production",
+  "staging.excalidraw.com": "staging",
   "vercel.app": "staging",
 };
 
@@ -23,9 +24,13 @@ Sentry.init({
   release: import.meta.env.VITE_APP_GIT_SHA,
   ignoreErrors: [
     "undefined is not an object (evaluating 'window.__pad.performLoop')", // Only happens on Safari, but spams our servers. Doesn't break anything
+    "InvalidStateError: Failed to execute 'transaction' on 'IDBDatabase': The database connection is closing.", // Not much we can do about the IndexedDB closing error
+    /(Failed to fetch|(fetch|loading) dynamically imported module)/i, // This is happening when a service worker tries to load an old asset
+    /QuotaExceededError: (The quota has been exceeded|.*setItem.*Storage)/i, // localStorage quota exceeded
+    "Internal error opening backing store for indexedDB.open", // Private mode and disabled indexedDB
   ],
   integrations: [
-    new SentryIntegrations.CaptureConsole({
+    Sentry.captureConsoleIntegration({
       levels: ["error"],
     }),
   ],
@@ -33,6 +38,44 @@ Sentry.init({
     if (event.request?.url) {
       event.request.url = event.request.url.replace(/#.*$/, "");
     }
+
+    if (!event.exception) {
+      event.exception = {
+        values: [
+          {
+            type: "ConsoleError",
+            value: event.message ?? "Unknown error",
+            stacktrace: {
+              frames: callsites()
+                .slice(1)
+                .filter(
+                  (frame) =>
+                    frame.getFileName() &&
+                    !frame.getFileName()?.includes("@sentry_browser.js"),
+                )
+                .map((frame) => ({
+                  filename: frame.getFileName() ?? undefined,
+                  function: frame.getFunctionName() ?? undefined,
+                  in_app: !(
+                    frame.getFileName()?.includes("node_modules") ?? false
+                  ),
+                  lineno: frame.getLineNumber() ?? undefined,
+                  colno: frame.getColumnNumber() ?? undefined,
+                })),
+            },
+            mechanism: {
+              type: "instrument",
+              handled: true,
+              data: {
+                function: "console.error",
+                handler: "Sentry.beforeSend",
+              },
+            },
+          },
+        ],
+      };
+    }
+
     return event;
   },
 });

packages/excalidraw/actions/actionBoundText.tsx

@@ -10,7 +10,6 @@ import {
   computeBoundTextPosition,
   computeContainerDimensionForBoundText,
   getBoundTextElement,
-  measureText,
   redrawTextBoundingBox,
 } from "../element/textElement";
 import {
@@ -35,6 +34,7 @@ import { arrayToMap, getFontString } from "../utils";
 import { register } from "./register";
 import { syncMovedIndices } from "../fractionalIndex";
 import { StoreAction } from "../store";
+import { measureText } from "../element/textMeasurements";
 
 export const actionUnbindText = register({
   name: "unbindText",

packages/excalidraw/actions/actionDeleteSelected.test.tsx

@@ -0,0 +1,211 @@
+import React from "react";
+import { Excalidraw, mutateElement } from "../index";
+import { act, assertElements, render } from "../tests/test-utils";
+import { API } from "../tests/helpers/api";
+import { actionDeleteSelected } from "./actionDeleteSelected";
+
+const { h } = window;
+
+describe("deleting selected elements when frame selected should keep children + select them", () => {
+  beforeEach(async () => {
+    await render(<Excalidraw />);
+  });
+
+  it("frame only", async () => {
+    const f1 = API.createElement({
+      type: "frame",
+    });
+
+    const r1 = API.createElement({
+      type: "rectangle",
+      frameId: f1.id,
+    });
+
+    API.setElements([f1, r1]);
+
+    API.setSelectedElements([f1]);
+
+    act(() => {
+      h.app.actionManager.executeAction(actionDeleteSelected);
+    });
+
+    assertElements(h.elements, [
+      { id: f1.id, isDeleted: true },
+      { id: r1.id, isDeleted: false, selected: true },
+    ]);
+  });
+
+  it("frame + text container (text's frameId set)", async () => {
+    const f1 = API.createElement({
+      type: "frame",
+    });
+
+    const r1 = API.createElement({
+      type: "rectangle",
+      frameId: f1.id,
+    });
+
+    const t1 = API.createElement({
+      type: "text",
+      width: 200,
+      height: 100,
+      fontSize: 20,
+      containerId: r1.id,
+      frameId: f1.id,
+    });
+
+    mutateElement(r1, {
+      boundElements: [{ type: "text", id: t1.id }],
+    });
+
+    API.setElements([f1, r1, t1]);
+
+    API.setSelectedElements([f1]);
+
+    act(() => {
+      h.app.actionManager.executeAction(actionDeleteSelected);
+    });
+
+    assertElements(h.elements, [
+      { id: f1.id, isDeleted: true },
+      { id: r1.id, isDeleted: false, selected: true },
+      { id: t1.id, isDeleted: false },
+    ]);
+  });
+
+  it("frame + text container (text's frameId not set)", async () => {
+    const f1 = API.createElement({
+      type: "frame",
+    });
+
+    const r1 = API.createElement({
+      type: "rectangle",
+      frameId: f1.id,
+    });
+
+    const t1 = API.createElement({
+      type: "text",
+      width: 200,
+      height: 100,
+      fontSize: 20,
+      containerId: r1.id,
+      frameId: null,
+    });
+
+    mutateElement(r1, {
+      boundElements: [{ type: "text", id: t1.id }],
+    });
+
+    API.setElements([f1, r1, t1]);
+
+    API.setSelectedElements([f1]);
+
+    act(() => {
+      h.app.actionManager.executeAction(actionDeleteSelected);
+    });
+
+    assertElements(h.elements, [
+      { id: f1.id, isDeleted: true },
+      { id: r1.id, isDeleted: false, selected: true },
+      { id: t1.id, isDeleted: false },
+    ]);
+  });
+
+  it("frame + text container (text selected too)", async () => {
+    const f1 = API.createElement({
+      type: "frame",
+    });
+
+    const r1 = API.createElement({
+      type: "rectangle",
+      frameId: f1.id,
+    });
+
+    const t1 = API.createElement({
+      type: "text",
+      width: 200,
+      height: 100,
+      fontSize: 20,
+      containerId: r1.id,
+      frameId: null,
+    });
+
+    mutateElement(r1, {
+      boundElements: [{ type: "text", id: t1.id }],
+    });
+
+    API.setElements([f1, r1, t1]);
+
+    API.setSelectedElements([f1, t1]);
+
+    act(() => {
+      h.app.actionManager.executeAction(actionDeleteSelected);
+    });
+
+    assertElements(h.elements, [
+      { id: f1.id, isDeleted: true },
+      { id: r1.id, isDeleted: false, selected: true },
+      { id: t1.id, isDeleted: false },
+    ]);
+  });
+
+  it("frame + labeled arrow", async () => {
+    const f1 = API.createElement({
+      type: "frame",
+    });
+
+    const a1 = API.createElement({
+      type: "arrow",
+      frameId: f1.id,
+    });
+
+    const t1 = API.createElement({
+      type: "text",
+      width: 200,
+      height: 100,
+      fontSize: 20,
+      containerId: a1.id,
+      frameId: null,
+    });
+
+    mutateElement(a1, {
+      boundElements: [{ type: "text", id: t1.id }],
+    });
+
+    API.setElements([f1, a1, t1]);
+
+    API.setSelectedElements([f1, t1]);
+
+    act(() => {
+      h.app.actionManager.executeAction(actionDeleteSelected);
+    });
+
+    assertElements(h.elements, [
+      { id: f1.id, isDeleted: true },
+      { id: a1.id, isDeleted: false, selected: true },
+      { id: t1.id, isDeleted: false },
+    ]);
+  });
+
+  it("frame + children selected", async () => {
+    const f1 = API.createElement({
+      type: "frame",
+    });
+    const r1 = API.createElement({
+      type: "rectangle",
+      frameId: f1.id,
+    });
+    API.setElements([f1, r1]);
+
+    API.setSelectedElements([f1, r1]);
+
+    act(() => {
+      h.app.actionManager.executeAction(actionDeleteSelected);
+    });
+
+    assertElements(h.elements, [
+      { id: f1.id, isDeleted: true },
+      { id: r1.id, isDeleted: false, selected: true },
+    ]);
+  });
+});

packages/excalidraw/actions/actionDeleteSelected.tsx

@@ -18,6 +18,8 @@ import {
 import { updateActiveTool } from "../utils";
 import { TrashIcon } from "../components/icons";
 import { StoreAction } from "../store";
+import { getContainerElement } from "../element/textElement";
+import { getFrameChildren } from "../frame";
 
 const deleteSelectedElements = (
   elements: readonly ExcalidrawElement[],
@@ -33,10 +35,50 @@ const deleteSelectedElements = (
 
   const selectedElementIds: Record<ExcalidrawElement["id"], true> = {};
 
+  const elementsMap = app.scene.getNonDeletedElementsMap();
+
+  const processedElements = new Set<ExcalidrawElement["id"]>();
+
+  for (const frameId of framesToBeDeleted) {
+    const frameChildren = getFrameChildren(elements, frameId);
+    for (const el of frameChildren) {
+      if (processedElements.has(el.id)) {
+        continue;
+      }
+
+      if (isBoundToContainer(el)) {
+        const containerElement = getContainerElement(el, elementsMap);
+        if (containerElement) {
+          selectedElementIds[containerElement.id] = true;
+        }
+      } else {
+        selectedElementIds[el.id] = true;
+      }
+      processedElements.add(el.id);
+    }
+  }
+
   let shouldSelectEditingGroup = true;
 
   const nextElements = elements.map((el) => {
     if (appState.selectedElementIds[el.id]) {
+      const boundElement = isBoundToContainer(el)
+        ? getContainerElement(el, elementsMap)
+        : null;
+
+      if (el.frameId && framesToBeDeleted.has(el.frameId)) {
+        shouldSelectEditingGroup = false;
+        selectedElementIds[el.id] = true;
+        return el;
+      }
+
+      if (
+        boundElement?.frameId &&
+        framesToBeDeleted.has(boundElement?.frameId)
+      ) {
+        return el;
+      }
+
       if (el.boundElements) {
         el.boundElements.forEach((candidate) => {
           const bound = app.scene.getNonDeletedElementsMap().get(candidate.id);
@@ -59,7 +101,9 @@ const deleteSelectedElements = (
     // if deleting a frame, remove the children from it and select them
     if (el.frameId && framesToBeDeleted.has(el.frameId)) {
       shouldSelectEditingGroup = false;
-      selectedElementIds[el.id] = true;
+      if (!isBoundToContainer(el)) {
+        selectedElementIds[el.id] = true;
+      }
       return newElementWith(el, { frameId: null });
     }
 
@@ -224,11 +268,13 @@ export const actionDeleteSelected = register({
         storeAction: StoreAction.CAPTURE,
       };
     }
+
     let { elements: nextElements, appState: nextAppState } =
       deleteSelectedElements(elements, appState, app);
+
     fixBindingsAfterDeletion(
       nextElements,
-      elements.filter(({ id }) => appState.selectedElementIds[id]),
+      nextElements.filter((el) => el.isDeleted),
     );
 
     nextAppState = handleGroupEditingState(nextAppState, nextElements);

packages/excalidraw/actions/actionDuplicateSelection.test.tsx

@@ -0,0 +1,530 @@
+import { Excalidraw } from "../index";
+import {
+  act,
+  assertElements,
+  getCloneByOrigId,
+  render,
+} from "../tests/test-utils";
+import { API } from "../tests/helpers/api";
+import { actionDuplicateSelection } from "./actionDuplicateSelection";
+import React from "react";
+import { ORIG_ID } from "../constants";
+
+const { h } = window;
+
+describe("actionDuplicateSelection", () => {
+  beforeEach(async () => {
+    await render(<Excalidraw />);
+  });
+
+  describe("duplicating frames", () => {
+    it("frame selected only", async () => {
+      const frame = API.createElement({
+        type: "frame",
+      });
+
+      const rectangle = API.createElement({
+        type: "rectangle",
+        frameId: frame.id,
+      });
+
+      API.setElements([frame, rectangle]);
+      API.setSelectedElements([frame]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: frame.id },
+        { id: rectangle.id, frameId: frame.id },
+        { [ORIG_ID]: rectangle.id, frameId: getCloneByOrigId(frame.id)?.id },
+        { [ORIG_ID]: frame.id, selected: true },
+      ]);
+    });
+
+    it("frame selected only (with text container)", async () => {
+      const frame = API.createElement({
+        type: "frame",
+      });
+
+      const [rectangle, text] = API.createTextContainer({ frameId: frame.id });
+
+      API.setElements([frame, rectangle, text]);
+      API.setSelectedElements([frame]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: frame.id },
+        { id: rectangle.id, frameId: frame.id },
+        { id: text.id, containerId: rectangle.id, frameId: frame.id },
+        { [ORIG_ID]: rectangle.id, frameId: getCloneByOrigId(frame.id)?.id },
+        {
+          [ORIG_ID]: text.id,
+          containerId: getCloneByOrigId(rectangle.id)?.id,
+          frameId: getCloneByOrigId(frame.id)?.id,
+        },
+        { [ORIG_ID]: frame.id, selected: true },
+      ]);
+    });
+
+    it("frame + text container selected (order A)", async () => {
+      const frame = API.createElement({
+        type: "frame",
+      });
+
+      const [rectangle, text] = API.createTextContainer({ frameId: frame.id });
+
+      API.setElements([frame, rectangle, text]);
+      API.setSelectedElements([frame, rectangle]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: frame.id },
+        { id: rectangle.id, frameId: frame.id },
+        { id: text.id, containerId: rectangle.id, frameId: frame.id },
+        {
+          [ORIG_ID]: rectangle.id,
+          frameId: getCloneByOrigId(frame.id)?.id,
+        },
+        {
+          [ORIG_ID]: text.id,
+          containerId: getCloneByOrigId(rectangle.id)?.id,
+          frameId: getCloneByOrigId(frame.id)?.id,
+        },
+        {
+          [ORIG_ID]: frame.id,
+          selected: true,
+        },
+      ]);
+    });
+
+    it("frame + text container selected (order B)", async () => {
+      const frame = API.createElement({
+        type: "frame",
+      });
+
+      const [rectangle, text] = API.createTextContainer({ frameId: frame.id });
+
+      API.setElements([text, rectangle, frame]);
+      API.setSelectedElements([rectangle, frame]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: rectangle.id, frameId: frame.id },
+        { id: text.id, containerId: rectangle.id, frameId: frame.id },
+        { id: frame.id },
+        {
+          type: "rectangle",
+          [ORIG_ID]: `${rectangle.id}`,
+        },
+        {
+          [ORIG_ID]: `${text.id}`,
+          type: "text",
+          containerId: getCloneByOrigId(rectangle.id)?.id,
+          frameId: getCloneByOrigId(frame.id)?.id,
+        },
+        { [ORIG_ID]: `${frame.id}`, type: "frame", selected: true },
+      ]);
+    });
+  });
+
+  describe("duplicating frame children", () => {
+    it("frame child selected", () => {
+      const frame = API.createElement({
+        type: "frame",
+      });
+
+      const rectangle = API.createElement({
+        type: "rectangle",
+        frameId: frame.id,
+      });
+
+      API.setElements([frame, rectangle]);
+      API.setSelectedElements([rectangle]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: frame.id },
+        { id: rectangle.id, frameId: frame.id },
+        { [ORIG_ID]: rectangle.id, frameId: frame.id, selected: true },
+      ]);
+    });
+
+    it("frame text container selected (rectangle selected)", () => {
+      const frame = API.createElement({
+        type: "frame",
+      });
+
+      const [rectangle, text] = API.createTextContainer({ frameId: frame.id });
+
+      API.setElements([frame, rectangle, text]);
+      API.setSelectedElements([rectangle]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: frame.id },
+        { id: rectangle.id, frameId: frame.id },
+        { id: text.id, containerId: rectangle.id, frameId: frame.id },
+        { [ORIG_ID]: rectangle.id, frameId: frame.id, selected: true },
+        {
+          [ORIG_ID]: text.id,
+          containerId: getCloneByOrigId(rectangle.id).id,
+          frameId: frame.id,
+        },
+      ]);
+    });
+
+    it("frame bound text selected (container not selected)", () => {
+      const frame = API.createElement({
+        type: "frame",
+      });
+
+      const [rectangle, text] = API.createTextContainer({ frameId: frame.id });
+
+      API.setElements([frame, rectangle, text]);
+      API.setSelectedElements([text]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: frame.id },
+        { id: rectangle.id, frameId: frame.id },
+        { id: text.id, containerId: rectangle.id, frameId: frame.id },
+        { [ORIG_ID]: rectangle.id, frameId: frame.id, selected: true },
+        {
+          [ORIG_ID]: text.id,
+          containerId: getCloneByOrigId(rectangle.id).id,
+          frameId: frame.id,
+        },
+      ]);
+    });
+
+    it("frame text container selected (text not exists)", () => {
+      const frame = API.createElement({
+        type: "frame",
+      });
+
+      const [rectangle] = API.createTextContainer({ frameId: frame.id });
+
+      API.setElements([frame, rectangle]);
+      API.setSelectedElements([rectangle]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: frame.id },
+        { id: rectangle.id, frameId: frame.id },
+        { [ORIG_ID]: rectangle.id, frameId: frame.id, selected: true },
+      ]);
+    });
+
+    // shouldn't happen
+    it("frame bound text selected (container not exists)", () => {
+      const frame = API.createElement({
+        type: "frame",
+      });
+
+      const [, text] = API.createTextContainer({ frameId: frame.id });
+
+      API.setElements([frame, text]);
+      API.setSelectedElements([text]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: frame.id },
+        { id: text.id, frameId: frame.id },
+        { [ORIG_ID]: text.id, frameId: frame.id },
+      ]);
+    });
+
+    it("frame bound container selected (text has no frameId)", () => {
+      const frame = API.createElement({
+        type: "frame",
+      });
+
+      const [rectangle, text] = API.createTextContainer({
+        frameId: frame.id,
+        label: { frameId: null },
+      });
+
+      API.setElements([frame, rectangle, text]);
+      API.setSelectedElements([rectangle]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: frame.id },
+        { id: rectangle.id, frameId: frame.id },
+        { id: text.id, containerId: rectangle.id },
+        { [ORIG_ID]: rectangle.id, frameId: frame.id, selected: true },
+        {
+          [ORIG_ID]: text.id,
+          containerId: getCloneByOrigId(rectangle.id).id,
+        },
+      ]);
+    });
+  });
+
+  describe("duplicating multiple frames", () => {
+    it("multiple frames selected (no children)", () => {
+      const frame1 = API.createElement({
+        type: "frame",
+      });
+
+      const rect1 = API.createElement({
+        type: "rectangle",
+        frameId: frame1.id,
+      });
+
+      const frame2 = API.createElement({
+        type: "frame",
+      });
+
+      const rect2 = API.createElement({
+        type: "rectangle",
+        frameId: frame2.id,
+      });
+
+      const ellipse = API.createElement({
+        type: "ellipse",
+      });
+
+      API.setElements([rect1, frame1, ellipse, rect2, frame2]);
+      API.setSelectedElements([frame1, frame2]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: rect1.id, frameId: frame1.id },
+        { id: frame1.id },
+        { [ORIG_ID]: rect1.id, frameId: getCloneByOrigId(frame1.id)?.id },
+        { [ORIG_ID]: frame1.id, selected: true },
+        { id: ellipse.id },
+        { id: rect2.id, frameId: frame2.id },
+        { id: frame2.id },
+        { [ORIG_ID]: rect2.id, frameId: getCloneByOrigId(frame2.id)?.id },
+        { [ORIG_ID]: frame2.id, selected: true },
+      ]);
+    });
+
+    it("multiple frames selected (no children) + unrelated element", () => {
+      const frame1 = API.createElement({
+        type: "frame",
+      });
+
+      const rect1 = API.createElement({
+        type: "rectangle",
+        frameId: frame1.id,
+      });
+
+      const frame2 = API.createElement({
+        type: "frame",
+      });
+
+      const rect2 = API.createElement({
+        type: "rectangle",
+        frameId: frame2.id,
+      });
+
+      const ellipse = API.createElement({
+        type: "ellipse",
+      });
+
+      API.setElements([rect1, frame1, ellipse, rect2, frame2]);
+      API.setSelectedElements([frame1, ellipse, frame2]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: rect1.id, frameId: frame1.id },
+        { id: frame1.id },
+        { [ORIG_ID]: rect1.id, frameId: getCloneByOrigId(frame1.id)?.id },
+        { [ORIG_ID]: frame1.id, selected: true },
+        { id: ellipse.id },
+        { [ORIG_ID]: ellipse.id, selected: true },
+        { id: rect2.id, frameId: frame2.id },
+        { id: frame2.id },
+        { [ORIG_ID]: rect2.id, frameId: getCloneByOrigId(frame2.id)?.id },
+        { [ORIG_ID]: frame2.id, selected: true },
+      ]);
+    });
+  });
+
+  describe("duplicating containers/bound elements", () => {
+    it("labeled arrow (arrow selected)", () => {
+      const [arrow, text] = API.createLabeledArrow();
+
+      API.setElements([arrow, text]);
+      API.setSelectedElements([arrow]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: arrow.id },
+        { id: text.id, containerId: arrow.id },
+        { [ORIG_ID]: arrow.id, selected: true },
+        { [ORIG_ID]: text.id, containerId: getCloneByOrigId(arrow.id)?.id },
+      ]);
+    });
+
+    // shouldn't happen
+    it("labeled arrow (text selected)", () => {
+      const [arrow, text] = API.createLabeledArrow();
+
+      API.setElements([arrow, text]);
+      API.setSelectedElements([text]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: arrow.id },
+        { id: text.id, containerId: arrow.id },
+        { [ORIG_ID]: arrow.id, selected: true },
+        { [ORIG_ID]: text.id, containerId: getCloneByOrigId(arrow.id)?.id },
+      ]);
+    });
+  });
+
+  describe("duplicating groups", () => {
+    it("duplicate group containing frame (children don't have groupIds set)", () => {
+      const frame = API.createElement({
+        type: "frame",
+        groupIds: ["A"],
+      });
+
+      const [rectangle, text] = API.createTextContainer({
+        frameId: frame.id,
+      });
+
+      const ellipse = API.createElement({
+        type: "ellipse",
+        groupIds: ["A"],
+      });
+
+      API.setElements([rectangle, text, frame, ellipse]);
+      API.setSelectedElements([frame, ellipse]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: rectangle.id, frameId: frame.id },
+        { id: text.id, frameId: frame.id },
+        { id: frame.id },
+        { id: ellipse.id },
+        { [ORIG_ID]: rectangle.id, frameId: getCloneByOrigId(frame.id)?.id },
+        { [ORIG_ID]: text.id, frameId: getCloneByOrigId(frame.id)?.id },
+        { [ORIG_ID]: frame.id, selected: true },
+        { [ORIG_ID]: ellipse.id, selected: true },
+      ]);
+    });
+
+    it("duplicate group containing frame (children have groupIds)", () => {
+      const frame = API.createElement({
+        type: "frame",
+        groupIds: ["A"],
+      });
+
+      const [rectangle, text] = API.createTextContainer({
+        frameId: frame.id,
+        groupIds: ["A"],
+      });
+
+      const ellipse = API.createElement({
+        type: "ellipse",
+        groupIds: ["A"],
+      });
+
+      API.setElements([rectangle, text, frame, ellipse]);
+      API.setSelectedElements([frame, ellipse]);
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: rectangle.id, frameId: frame.id },
+        { id: text.id, frameId: frame.id },
+        { id: frame.id },
+        { id: ellipse.id },
+        {
+          [ORIG_ID]: rectangle.id,
+          frameId: getCloneByOrigId(frame.id)?.id,
+          // FIXME shouldn't be selected (in selectGroupsForSelectedElements)
+          selected: true,
+        },
+        {
+          [ORIG_ID]: text.id,
+          frameId: getCloneByOrigId(frame.id)?.id,
+          // FIXME shouldn't be selected (in selectGroupsForSelectedElements)
+          selected: true,
+        },
+        { [ORIG_ID]: frame.id, selected: true },
+        { [ORIG_ID]: ellipse.id, selected: true },
+      ]);
+    });
+
+    it("duplicating element nested in group", () => {
+      const ellipse = API.createElement({
+        type: "ellipse",
+        groupIds: ["B"],
+      });
+      const rect1 = API.createElement({
+        type: "rectangle",
+        groupIds: ["A", "B"],
+      });
+      const rect2 = API.createElement({
+        type: "rectangle",
+        groupIds: ["A", "B"],
+      });
+
+      API.setElements([ellipse, rect1, rect2]);
+      API.setSelectedElements([ellipse], "B");
+
+      act(() => {
+        h.app.actionManager.executeAction(actionDuplicateSelection);
+      });
+
+      assertElements(h.elements, [
+        { id: ellipse.id },
+        { [ORIG_ID]: ellipse.id, groupIds: ["B"], selected: true },
+        { id: rect1.id, groupIds: ["A", "B"] },
+        { id: rect2.id, groupIds: ["A", "B"] },
+      ]);
+    });
+  });
+});

packages/excalidraw/actions/actionDuplicateSelection.tsx

@@ -5,7 +5,13 @@ import { duplicateElement, getNonDeletedElements } from "../element";
 import { isSomeElementSelected } from "../scene";
 import { ToolButton } from "../components/ToolButton";
 import { t } from "../i18n";
-import { arrayToMap, getShortcutKey } from "../utils";
+import {
+  arrayToMap,
+  castArray,
+  findLastIndex,
+  getShortcutKey,
+  invariant,
+} from "../utils";
 import { LinearElementEditor } from "../element/linearElementEditor";
 import {
   selectGroupsForSelectedElements,
@@ -19,8 +25,13 @@ import { DEFAULT_GRID_SIZE } from "../constants";
 import {
   bindTextToShapeAfterDuplication,
   getBoundTextElement,
+  getContainerElement,
 } from "../element/textElement";
-import { isBoundToContainer, isFrameLikeElement } from "../element/typeChecks";
+import {
+  hasBoundTextElement,
+  isBoundToContainer,
+  isFrameLikeElement,
+} from "../element/typeChecks";
 import { normalizeElementOrder } from "../element/sortElements";
 import { DuplicateIcon } from "../components/icons";
 import {
@@ -31,7 +42,6 @@ import {
   excludeElementsInFramesFromSelection,
   getSelectedElements,
 } from "../scene/selection";
-import { syncMovedIndices } from "../fractionalIndex";
 import { StoreAction } from "../store";
 
 export const actionDuplicateSelection = register({
@@ -59,8 +69,20 @@ export const actionDuplicateSelection = register({
       }
     }
 
+    const nextState = duplicateElements(elements, appState);
+
+    if (app.props.onDuplicate && nextState.elements) {
+      const mappedElements = app.props.onDuplicate(
+        nextState.elements,
+        elements,
+      );
+      if (mappedElements) {
+        nextState.elements = mappedElements;
+      }
+    }
+
     return {
-      ...duplicateElements(elements, appState),
+      ...nextState,
       storeAction: StoreAction.CAPTURE,
     };
   },
@@ -82,37 +104,69 @@ export const actionDuplicateSelection = register({
 const duplicateElements = (
   elements: readonly ExcalidrawElement[],
   appState: AppState,
-): Partial<ActionResult> => {
+): Partial<Exclude<ActionResult, false>> => {
   // ---------------------------------------------------------------------------
 
-  // step (1)
-
-  const sortedElements = normalizeElementOrder(elements);
   const groupIdMap = new Map();
   const newElements: ExcalidrawElement[] = [];
   const oldElements: ExcalidrawElement[] = [];
   const oldIdToDuplicatedId = new Map();
   const duplicatedElementsMap = new Map<string, ExcalidrawElement>();
 
-  const duplicateAndOffsetElement = (element: ExcalidrawElement) => {
+  const elementsMap = arrayToMap(elements);
-    const newElement = duplicateElement(
+
-      appState.editingGroupId,
+  const duplicateAndOffsetElement = <
-      groupIdMap,
+    T extends ExcalidrawElement | ExcalidrawElement[],
-      element,
+  >(
-      {
+    element: T,
-        x: element.x + DEFAULT_GRID_SIZE / 2,
+  ): T extends ExcalidrawElement[]
-        y: element.y + DEFAULT_GRID_SIZE / 2,
+    ? ExcalidrawElement[]
+    : ExcalidrawElement | null => {
+    const elements = castArray(element);
+
+    const _newElements = elements.reduce(
+      (acc: ExcalidrawElement[], element) => {
+        if (processedIds.has(element.id)) {
+          return acc;
+        }
+
+        processedIds.set(element.id, true);
+
+        const newElement = duplicateElement(
+          appState.editingGroupId,
+          groupIdMap,
+          element,
+          {
+            x: element.x + DEFAULT_GRID_SIZE / 2,
+            y: element.y + DEFAULT_GRID_SIZE / 2,
+          },
+        );
+
+        processedIds.set(newElement.id, true);
+
+        duplicatedElementsMap.set(newElement.id, newElement);
+        oldIdToDuplicatedId.set(element.id, newElement.id);
+
+        oldElements.push(element);
+        newElements.push(newElement);
+
+        acc.push(newElement);
+        return acc;
       },
+      [],
     );
-    duplicatedElementsMap.set(newElement.id, newElement);
+
-    oldIdToDuplicatedId.set(element.id, newElement.id);
+    return (
-    oldElements.push(element);
+      Array.isArray(element) ? _newElements : _newElements[0] || null
-    newElements.push(newElement);
+    ) as T extends ExcalidrawElement[]
-    return newElement;
+      ? ExcalidrawElement[]
+      : ExcalidrawElement | null;
   };
 
+  elements = normalizeElementOrder(elements);
+
   const idsOfElementsToDuplicate = arrayToMap(
-    getSelectedElements(sortedElements, appState, {
+    getSelectedElements(elements, appState, {
       includeBoundTextElement: true,
       includeElementsInFrames: true,
     }),
@@ -130,122 +184,133 @@ const duplicateElements = (
   // loop over them.
   const processedIds = new Map<ExcalidrawElement["id"], true>();
 
-  const markAsProcessed = (elements: ExcalidrawElement[]) => {
+  const elementsWithClones: ExcalidrawElement[] = elements.slice();
-    for (const element of elements) {
+
-      processedIds.set(element.id, true);
+  const insertAfterIndex = (
+    index: number,
+    elements: ExcalidrawElement | null | ExcalidrawElement[],
+  ) => {
+    invariant(index !== -1, "targetIndex === -1 ");
+
+    if (!Array.isArray(elements) && !elements) {
+      return;
     }
-    return elements;
+
+    elementsWithClones.splice(index + 1, 0, ...castArray(elements));
   };
 
-  const elementsWithClones: ExcalidrawElement[] = [];
+  const frameIdsToDuplicate = new Set(
+    elements
+      .filter(
+        (el) => idsOfElementsToDuplicate.has(el.id) && isFrameLikeElement(el),
+      )
+      .map((el) => el.id),
+  );
 
-  let index = -1;
+  for (const element of elements) {
-
+    if (processedIds.has(element.id)) {
-  while (++index < sortedElements.length) {
-    const element = sortedElements[index];
-
-    if (processedIds.get(element.id)) {
       continue;
     }
 
-    const boundTextElement = getBoundTextElement(element, arrayToMap(elements));
+    if (!idsOfElementsToDuplicate.has(element.id)) {
-    const isElementAFrameLike = isFrameLikeElement(element);
+      continue;
+    }
 
-    if (idsOfElementsToDuplicate.get(element.id)) {
+    // groups
-      // if a group or a container/bound-text or frame, duplicate atomically
+    // -------------------------------------------------------------------------
-      if (element.groupIds.length || boundTextElement || isElementAFrameLike) {
-        const groupId = getSelectedGroupForElement(appState, element);
-        if (groupId) {
-          // TODO:
-          // remove `.flatMap...`
-          // if the elements in a frame are grouped when the frame is grouped
-          const groupElements = getElementsInGroup(
-            sortedElements,
-            groupId,
-          ).flatMap((element) =>
-            isFrameLikeElement(element)
-              ? [...getFrameChildren(elements, element.id), element]
-              : [element],
-          );
 
-          elementsWithClones.push(
+    const groupId = getSelectedGroupForElement(appState, element);
-            ...markAsProcessed([
+    if (groupId) {
-              ...groupElements,
+      const groupElements = getElementsInGroup(elements, groupId).flatMap(
-              ...groupElements.map((element) =>
+        (element) =>
-                duplicateAndOffsetElement(element),
+          isFrameLikeElement(element)
-              ),
+            ? [...getFrameChildren(elements, element.id), element]
-            ]),
+            : [element],
-          );
+      );
-          continue;
-        }
-        if (boundTextElement) {
-          elementsWithClones.push(
-            ...markAsProcessed([
-              element,
-              boundTextElement,
-              duplicateAndOffsetElement(element),
-              duplicateAndOffsetElement(boundTextElement),
-            ]),
-          );
-          continue;
-        }
-        if (isElementAFrameLike) {
-          const elementsInFrame = getFrameChildren(sortedElements, element.id);
 
-          elementsWithClones.push(
+      const targetIndex = findLastIndex(elementsWithClones, (el) => {
-            ...markAsProcessed([
+        return el.groupIds?.includes(groupId);
-              ...elementsInFrame,
+      });
-              element,
-              ...elementsInFrame.map((e) => duplicateAndOffsetElement(e)),
-              duplicateAndOffsetElement(element),
-            ]),
-          );
 
-          continue;
+      insertAfterIndex(targetIndex, duplicateAndOffsetElement(groupElements));
-        }
+      continue;
-      }
+    }
-      // since elements in frames have a lower z-index than the frame itself,
+
-      // they will be looped first and if their frames are selected as well,
+    // frame duplication
-      // they will have been copied along with the frame atomically in the
+    // -------------------------------------------------------------------------
-      // above branch, so we must skip those elements here
+
-      //
+    if (element.frameId && frameIdsToDuplicate.has(element.frameId)) {
-      // now, for elements do not belong any frames or elements whose frames
+      continue;
-      // are selected (or elements that are left out from the above
+    }
-      // steps for whatever reason) we (should at least) duplicate them here
+
-      if (!element.frameId || !idsOfElementsToDuplicate.has(element.frameId)) {
+    if (isFrameLikeElement(element)) {
-        elementsWithClones.push(
+      const frameId = element.id;
-          ...markAsProcessed([element, duplicateAndOffsetElement(element)]),
+
+      const frameChildren = getFrameChildren(elements, frameId);
+
+      const targetIndex = findLastIndex(elementsWithClones, (el) => {
+        return el.frameId === frameId || el.id === frameId;
+      });
+
+      insertAfterIndex(
+        targetIndex,
+        duplicateAndOffsetElement([...frameChildren, element]),
+      );
+      continue;
+    }
+
+    // text container
+    // -------------------------------------------------------------------------
+
+    if (hasBoundTextElement(element)) {
+      const boundTextElement = getBoundTextElement(element, elementsMap);
+
+      const targetIndex = findLastIndex(elementsWithClones, (el) => {
+        return (
+          el.id === element.id ||
+          ("containerId" in el && el.containerId === element.id)
         );
+      });
+
+      if (boundTextElement) {
+        insertAfterIndex(
+          targetIndex,
+          duplicateAndOffsetElement([element, boundTextElement]),
+        );
+      } else {
+        insertAfterIndex(targetIndex, duplicateAndOffsetElement(element));
       }
-    } else {
+
-      elementsWithClones.push(...markAsProcessed([element]));
+      continue;
     }
-  }
 
-  // step (2)
+    if (isBoundToContainer(element)) {
+      const container = getContainerElement(element, elementsMap);
 
-  // second pass to remove duplicates. We loop from the end as it's likelier
+      const targetIndex = findLastIndex(elementsWithClones, (el) => {
-  // that the last elements are in the correct order (contiguous or otherwise).
+        return el.id === element.id || el.id === container?.id;
-  // Thus we need to reverse as the last step (3).
+      });
 
-  const finalElementsReversed: ExcalidrawElement[] = [];
+      if (container) {
+        insertAfterIndex(
+          targetIndex,
+          duplicateAndOffsetElement([container, element]),
+        );
+      } else {
+        insertAfterIndex(targetIndex, duplicateAndOffsetElement(element));
+      }
 
-  const finalElementIds = new Map<ExcalidrawElement["id"], true>();
+      continue;
-  index = elementsWithClones.length;
-
-  while (--index >= 0) {
-    const element = elementsWithClones[index];
-    if (!finalElementIds.get(element.id)) {
-      finalElementIds.set(element.id, true);
-      finalElementsReversed.push(element);
     }
-  }
 
-  // step (3)
+    // default duplication (regular elements)
-  const finalElements = syncMovedIndices(
+    // -------------------------------------------------------------------------
-    finalElementsReversed.reverse(),
+
-    arrayToMap(newElements),
+    insertAfterIndex(
-  );
+      findLastIndex(elementsWithClones, (el) => el.id === element.id),
+      duplicateAndOffsetElement(element),
+    );
+  }
 
   // ---------------------------------------------------------------------------
 
@@ -260,7 +325,7 @@ const duplicateElements = (
     oldIdToDuplicatedId,
   );
   bindElementsToFramesAfterDuplication(
-    finalElements,
+    elementsWithClones,
     oldElements,
     oldIdToDuplicatedId,
   );
@@ -269,7 +334,7 @@ const duplicateElements = (
     excludeElementsInFramesFromSelection(newElements);
 
   return {
-    elements: finalElements,
+    elements: elementsWithClones,
     appState: {
       ...appState,
       ...selectGroupsForSelectedElements(
@@ -285,7 +350,7 @@ const duplicateElements = (
             {},
           ),
         },
-        getNonDeletedElements(finalElements),
+        getNonDeletedElements(elementsWithClones),
         appState,
         null,
       ),

packages/excalidraw/actions/actionProperties.tsx

@@ -121,6 +121,7 @@ import {
 import { LinearElementEditor } from "../element/linearElementEditor";
 import type { LocalPoint } from "../../math";
 import { pointFrom } from "../../math";
+import { Range } from "../components/Range";
 
 const FONT_SIZE_RELATIVE_INCREASE_STEP = 0.1;
 
@@ -630,25 +631,12 @@ export const actionChangeOpacity = register({
     };
   },
   PanelComponent: ({ elements, appState, updateData }) => (
-    <label className="control-label">
+    <Range
-      {t("labels.opacity")}
+      updateData={updateData}
-      <input
+      elements={elements}
-        type="range"
+      appState={appState}
-        min="0"
+      testId="opacity"
-        max="100"
+    />
-        step="10"
-        onChange={(event) => updateData(+event.target.value)}
-        value={
-          getFormValue(
-            elements,
-            appState,
-            (element) => element.opacity,
-            true,
-            appState.currentItemOpacity,
-          ) ?? undefined
-        }
-      />
-    </label>
   ),
 });
 
@@ -1617,6 +1605,8 @@ export const actionChangeArrowType = register({
             elements,
             elementsMap,
             appState.zoom,
+            false,
+            true,
           );
         const endHoveredElement =
           !newElement.endBinding &&
@@ -1625,6 +1615,8 @@ export const actionChangeArrowType = register({
             elements,
             elementsMap,
             appState.zoom,
+            false,
+            true,
           );
         const startElement = startHoveredElement
           ? startHoveredElement

packages/excalidraw/actions/actionTextAutoResize.ts

@@ -1,6 +1,6 @@
 import { isTextElement } from "../element";
 import { newElementWith } from "../element/mutateElement";
-import { measureText } from "../element/textElement";
+import { measureText } from "../element/textMeasurements";
 import { getSelectedElements } from "../scene";
 import { StoreAction } from "../store";
 import type { AppClassProperties } from "../types";

packages/excalidraw/components/App.tsx

@@ -331,17 +331,10 @@ import type { FileSystemHandle } from "../data/filesystem";
 import { fileOpen } from "../data/filesystem";
 import {
   bindTextToShapeAfterDuplication,
-  getApproxMinLineHeight,
-  getApproxMinLineWidth,
   getBoundTextElement,
   getContainerCenter,
   getContainerElement,
-  getLineHeightInPx,
-  getMinTextElementWidth,
-  isMeasureTextSupported,
   isValidTextContainer,
-  measureText,
-  normalizeText,
 } from "../element/textElement";
 import {
   showHyperlinkTooltip,
@@ -465,6 +458,15 @@ import { cropElement } from "../element/cropElement";
 import { wrapText } from "../element/textWrapping";
 import { actionCopyElementLink } from "../actions/actionElementLink";
 import { isElementLink, parseElementLinkFromURL } from "../element/elementLink";
+import {
+  isMeasureTextSupported,
+  normalizeText,
+  measureText,
+  getLineHeightInPx,
+  getApproxMinLineWidth,
+  getApproxMinLineHeight,
+  getMinTextElementWidth,
+} from "../element/textMeasurements";
 
 const AppContext = React.createContext<AppClassProperties>(null!);
 const AppPropsContext = React.createContext<AppProps>(null!);
@@ -601,7 +603,7 @@ class App extends React.Component<AppProps, AppState> {
   private elementsPendingErasure: ElementsPendingErasure = new Set();
 
   public flowChartCreator: FlowChartCreator = new FlowChartCreator();
-  private flowChartNavigator: FlowChartNavigator = new FlowChartNavigator();
+  private flowChartNavigator: FlowChartNavigator = new FlowChartNavigator(this);
 
   hitLinkElement?: NonDeletedExcalidrawElement;
   lastPointerDownEvent: React.PointerEvent<HTMLElement> | null = null;
@@ -1522,13 +1524,17 @@ class App extends React.Component<AppProps, AppState> {
     const allElementsMap = this.scene.getNonDeletedElementsMap();
 
     const shouldBlockPointerEvents =
-      this.state.selectionElement ||
+      // default back to `--ui-pointerEvents` flow if setPointerCapture
-      this.state.newElement ||
+      // not supported
-      this.state.selectedElementsAreBeingDragged ||
+      "setPointerCapture" in HTMLElement.prototype
-      this.state.resizingElement ||
+        ? false
-      (this.state.activeTool.type === "laser" &&
+        : this.state.selectionElement ||
-        // technically we can just test on this once we make it more safe
+          this.state.newElement ||
-        this.state.cursorButton === "down");
+          this.state.selectedElementsAreBeingDragged ||
+          this.state.resizingElement ||
+          (this.state.activeTool.type === "laser" &&
+            // technically we can just test on this once we make it more safe
+            this.state.cursorButton === "down");
 
     const firstSelectedElement = selectedElements[0];
 
@@ -3224,7 +3230,14 @@ class App extends React.Component<AppProps, AppState> {
     );
 
     const prevElements = this.scene.getElementsIncludingDeleted();
-    const nextElements = [...prevElements, ...newElements];
+    let nextElements = [...prevElements, ...newElements];
+
+    const mappedNewSceneElements = this.props.onDuplicate?.(
+      nextElements,
+      prevElements,
+    );
+
+    nextElements = mappedNewSceneElements || nextElements;
 
     syncMovedIndices(nextElements, arrayToMap(newElements));
 
@@ -4130,51 +4143,10 @@ class App extends React.Component<AppProps, AppState> {
           if (selectedElements.length === 1 && arrowKeyPressed) {
             event.preventDefault();
 
-            const nextId = this.flowChartNavigator.exploreByDirection(
+            return this.flowChartNavigator.exploreByDirection(
               selectedElements[0],
-              this.scene.getNonDeletedElementsMap(),
               getLinkDirectionFromKey(event.key),
             );
-
-            if (nextId) {
-              this.setState((prevState) => ({
-                selectedElementIds: makeNextSelectedElementIds(
-                  {
-                    [nextId]: true,
-                  },
-                  prevState,
-                ),
-              }));
-
-              const nextNode = this.scene
-                .getNonDeletedElementsMap()
-                .get(nextId);
-
-              if (
-                nextNode &&
-                !isElementCompletelyInViewport(
-                  [nextNode],
-                  this.canvas.width / window.devicePixelRatio,
-                  this.canvas.height / window.devicePixelRatio,
-                  {
-                    offsetLeft: this.state.offsetLeft,
-                    offsetTop: this.state.offsetTop,
-                    scrollX: this.state.scrollX,
-                    scrollY: this.state.scrollY,
-                    zoom: this.state.zoom,
-                  },
-                  this.scene.getNonDeletedElementsMap(),
-                  this.getEditorUIOffsets(),
-                )
-              ) {
-                this.scrollToContent(nextNode, {
-                  animate: true,
-                  duration: 300,
-                  canvasOffsets: this.getEditorUIOffsets(),
-                });
-              }
-            }
-            return;
           }
         }
       }
@@ -5770,7 +5742,10 @@ class App extends React.Component<AppProps, AppState> {
         });
       }
       if (editingLinearElement?.lastUncommittedPoint != null) {
-        this.maybeSuggestBindingAtCursor(scenePointer);
+        this.maybeSuggestBindingAtCursor(
+          scenePointer,
+          editingLinearElement.elbowed,
+        );
       } else {
         // causes stack overflow if not sync
         flushSync(() => {
@@ -5790,7 +5765,7 @@ class App extends React.Component<AppProps, AppState> {
           this.state.startBoundElement,
         );
       } else {
-        this.maybeSuggestBindingAtCursor(scenePointer);
+        this.maybeSuggestBindingAtCursor(scenePointer, false);
       }
     }
 
@@ -6292,6 +6267,13 @@ class App extends React.Component<AppProps, AppState> {
   private handleCanvasPointerDown = (
     event: React.PointerEvent<HTMLElement>,
   ) => {
+    const target = event.target as HTMLElement;
+    // capture subsequent pointer events to the canvas
+    // this makes other elements non-interactive until pointer up
+    if (target.setPointerCapture) {
+      target.setPointerCapture(event.pointerId);
+    }
+
     this.maybeCleanupAfterMissingPointerUp(event.nativeEvent);
     this.maybeUnfollowRemoteUser();
 
@@ -7728,6 +7710,7 @@ class App extends React.Component<AppProps, AppState> {
         this.scene.getNonDeletedElementsMap(),
         this.state.zoom,
         isElbowArrow(element),
+        isElbowArrow(element),
       );
 
       this.scene.insertElement(element);
@@ -8427,7 +8410,17 @@ class App extends React.Component<AppProps, AppState> {
               }
             }
 
-            const nextSceneElements = [...nextElements, ...elementsToAppend];
+            let nextSceneElements: ExcalidrawElement[] = [
+              ...nextElements,
+              ...elementsToAppend,
+            ];
+
+            const mappedNewSceneElements = this.props.onDuplicate?.(
+              nextSceneElements,
+              elements,
+            );
+
+            nextSceneElements = mappedNewSceneElements || nextSceneElements;
 
             syncMovedIndices(nextSceneElements, arrayToMap(elementsToAppend));
 
@@ -10005,15 +9998,20 @@ class App extends React.Component<AppProps, AppState> {
     }
   };
 
-  private maybeSuggestBindingAtCursor = (pointerCoords: {
+  private maybeSuggestBindingAtCursor = (
-    x: number;
+    pointerCoords: {
-    y: number;
+      x: number;
-  }): void => {
+      y: number;
+    },
+    considerAll: boolean,
+  ): void => {
     const hoveredBindableElement = getHoveredElementForBinding(
       pointerCoords,
       this.scene.getNonDeletedElements(),
       this.scene.getNonDeletedElementsMap(),
       this.state.zoom,
+      false,
+      considerAll,
     );
     this.setState({
       suggestedBindings:
@@ -10043,7 +10041,8 @@ class App extends React.Component<AppProps, AppState> {
           this.scene.getNonDeletedElements(),
           this.scene.getNonDeletedElementsMap(),
           this.state.zoom,
-          isArrowElement(linearElement) && isElbowArrow(linearElement),
+          isElbowArrow(linearElement),
+          isElbowArrow(linearElement),
         );
         if (
           hoveredBindableElement != null &&

packages/excalidraw/components/IconPicker.tsx

@@ -5,7 +5,7 @@ import { getLanguage, t } from "../i18n";
 import clsx from "clsx";
 import Collapsible from "./Stats/Collapsible";
 import { atom, useAtom } from "../editor-jotai";
-import { useDevice } from "..";
+import { useDevice } from "./App";
 
 import "./IconPicker.scss";
 

packages/excalidraw/components/LibraryMenu.tsx

@@ -1,4 +1,11 @@
-import React, { useState, useCallback, useMemo, useRef } from "react";
+import React, {
+  useState,
+  useCallback,
+  useMemo,
+  useEffect,
+  memo,
+  useRef,
+} from "react";
 import type Library from "../data/library";
 import {
   distributeLibraryItemsOnSquareGrid,
@@ -11,6 +18,7 @@ import type {
   LibraryItem,
   ExcalidrawProps,
   UIAppState,
+  AppClassProperties,
 } from "../types";
 import LibraryMenuItems from "./LibraryMenuItems";
 import { trackEvent } from "../analytics";
@@ -27,9 +35,12 @@ import { useUIAppState } from "../context/ui-appState";
 
 import "./LibraryMenu.scss";
 import { LibraryMenuControlButtons } from "./LibraryMenuControlButtons";
-import { isShallowEqual } from "../utils";
+import type {
-import type { NonDeletedExcalidrawElement } from "../element/types";
+  ExcalidrawElement,
+  NonDeletedExcalidrawElement,
+} from "../element/types";
 import { LIBRARY_DISABLED_TYPES } from "../constants";
+import { isShallowEqual } from "../utils";
 
 export const isLibraryMenuOpenAtom = atom(false);
 
@@ -37,156 +48,215 @@ const LibraryMenuWrapper = ({ children }: { children: React.ReactNode }) => {
   return <div className="layer-ui__library">{children}</div>;
 };
 
-export const LibraryMenuContent = ({
+const LibraryMenuContent = memo(
-  onInsertLibraryItems,
+  ({
-  pendingElements,
+    onInsertLibraryItems,
-  onAddToLibrary,
+    pendingElements,
-  setAppState,
+    onAddToLibrary,
-  libraryReturnUrl,
+    setAppState,
-  library,
+    libraryReturnUrl,
-  id,
+    library,
-  theme,
+    id,
-  selectedItems,
+    theme,
-  onSelectItems,
+    selectedItems,
-}: {
+    onSelectItems,
-  pendingElements: LibraryItem["elements"];
+  }: {
-  onInsertLibraryItems: (libraryItems: LibraryItems) => void;
+    pendingElements: LibraryItem["elements"];
-  onAddToLibrary: () => void;
+    onInsertLibraryItems: (libraryItems: LibraryItems) => void;
-  setAppState: React.Component<any, UIAppState>["setState"];
+    onAddToLibrary: () => void;
-  libraryReturnUrl: ExcalidrawProps["libraryReturnUrl"];
+    setAppState: React.Component<any, UIAppState>["setState"];
-  library: Library;
+    libraryReturnUrl: ExcalidrawProps["libraryReturnUrl"];
-  id: string;
+    library: Library;
-  theme: UIAppState["theme"];
+    id: string;
-  selectedItems: LibraryItem["id"][];
+    theme: UIAppState["theme"];
-  onSelectItems: (id: LibraryItem["id"][]) => void;
+    selectedItems: LibraryItem["id"][];
-}) => {
+    onSelectItems: (id: LibraryItem["id"][]) => void;
-  const [libraryItemsData] = useAtom(libraryItemsAtom);
+  }) => {
+    const [libraryItemsData] = useAtom(libraryItemsAtom);
 
-  const _onAddToLibrary = useCallback(
+    const _onAddToLibrary = useCallback(
-    (elements: LibraryItem["elements"]) => {
+      (elements: LibraryItem["elements"]) => {
-      const addToLibrary = async (
+        const addToLibrary = async (
-        processedElements: LibraryItem["elements"],
+          processedElements: LibraryItem["elements"],
-        libraryItems: LibraryItems,
+          libraryItems: LibraryItems,
-      ) => {
+        ) => {
-        trackEvent("element", "addToLibrary", "ui");
+          trackEvent("element", "addToLibrary", "ui");
-        for (const type of LIBRARY_DISABLED_TYPES) {
+          for (const type of LIBRARY_DISABLED_TYPES) {
-          if (processedElements.some((element) => element.type === type)) {
+            if (processedElements.some((element) => element.type === type)) {
-            return setAppState({
+              return setAppState({
-              errorMessage: t(`errors.libraryElementTypeError.${type}`),
+                errorMessage: t(`errors.libraryElementTypeError.${type}`),
-            });
+              });
+            }
           }
-        }
+          const nextItems: LibraryItems = [
-        const nextItems: LibraryItems = [
+            {
-          {
+              status: "unpublished",
-            status: "unpublished",
+              elements: processedElements,
-            elements: processedElements,
+              id: randomId(),
-            id: randomId(),
+              created: Date.now(),
-            created: Date.now(),
+            },
-          },
+            ...libraryItems,
-          ...libraryItems,
+          ];
-        ];
+          onAddToLibrary();
-        onAddToLibrary();
+          library.setLibrary(nextItems).catch(() => {
-        library.setLibrary(nextItems).catch(() => {
+            setAppState({ errorMessage: t("alerts.errorAddingToLibrary") });
-          setAppState({ errorMessage: t("alerts.errorAddingToLibrary") });
+          });
-        });
+        };
-      };
+        addToLibrary(elements, libraryItemsData.libraryItems);
-      addToLibrary(elements, libraryItemsData.libraryItems);
+      },
-    },
+      [onAddToLibrary, library, setAppState, libraryItemsData.libraryItems],
-    [onAddToLibrary, library, setAppState, libraryItemsData.libraryItems],
+    );
-  );
 
-  const libraryItems = useMemo(
+    const libraryItems = useMemo(
-    () => libraryItemsData.libraryItems,
+      () => libraryItemsData.libraryItems,
-    [libraryItemsData],
+      [libraryItemsData],
-  );
+    );
+
+    if (
+      libraryItemsData.status === "loading" &&
+      !libraryItemsData.isInitialized
+    ) {
+      return (
+        <LibraryMenuWrapper>
+          <div className="layer-ui__library-message">
+            <div>
+              <Spinner size="2em" />
+              <span>{t("labels.libraryLoadingMessage")}</span>
+            </div>
+          </div>
+        </LibraryMenuWrapper>
+      );
+    }
+
+    const showBtn =
+      libraryItemsData.libraryItems.length > 0 || pendingElements.length > 0;
 
-  if (
-    libraryItemsData.status === "loading" &&
-    !libraryItemsData.isInitialized
-  ) {
     return (
       <LibraryMenuWrapper>
-        <div className="layer-ui__library-message">
+        <LibraryMenuItems
-          <div>
+          isLoading={libraryItemsData.status === "loading"}
-            <Spinner size="2em" />
+          libraryItems={libraryItems}
-            <span>{t("labels.libraryLoadingMessage")}</span>
+          onAddToLibrary={_onAddToLibrary}
-          </div>
+          onInsertLibraryItems={onInsertLibraryItems}
-        </div>
+          pendingElements={pendingElements}
-      </LibraryMenuWrapper>
-    );
-  }
-
-  const showBtn =
-    libraryItemsData.libraryItems.length > 0 || pendingElements.length > 0;
-
-  return (
-    <LibraryMenuWrapper>
-      <LibraryMenuItems
-        isLoading={libraryItemsData.status === "loading"}
-        libraryItems={libraryItems}
-        onAddToLibrary={_onAddToLibrary}
-        onInsertLibraryItems={onInsertLibraryItems}
-        pendingElements={pendingElements}
-        id={id}
-        libraryReturnUrl={libraryReturnUrl}
-        theme={theme}
-        onSelectItems={onSelectItems}
-        selectedItems={selectedItems}
-      />
-      {showBtn && (
-        <LibraryMenuControlButtons
-          className="library-menu-control-buttons--at-bottom"
-          style={{ padding: "16px 12px 0 12px" }}
           id={id}
           libraryReturnUrl={libraryReturnUrl}
           theme={theme}
+          onSelectItems={onSelectItems}
+          selectedItems={selectedItems}
         />
-      )}
+        {showBtn && (
-    </LibraryMenuWrapper>
+          <LibraryMenuControlButtons
-  );
+            className="library-menu-control-buttons--at-bottom"
-};
+            style={{ padding: "16px 12px 0 12px" }}
+            id={id}
+            libraryReturnUrl={libraryReturnUrl}
+            theme={theme}
+          />
+        )}
+      </LibraryMenuWrapper>
+    );
+  },
+);
+
+const getPendingElements = (
+  elements: readonly NonDeletedExcalidrawElement[],
+  selectedElementIds: UIAppState["selectedElementIds"],
+) => ({
+  elements,
+  pending: getSelectedElements(
+    elements,
+    { selectedElementIds },
+    {
+      includeBoundTextElement: true,
+      includeElementsInFrames: true,
+    },
+  ),
+  selectedElementIds,
+});
 
 const usePendingElementsMemo = (
   appState: UIAppState,
-  elements: readonly NonDeletedExcalidrawElement[],
+  app: AppClassProperties,
 ) => {
-  const create = () =>
+  const elements = useExcalidrawElements();
-    getSelectedElements(elements, appState, {
+  const [state, setState] = useState(() =>
-      includeBoundTextElement: true,
+    getPendingElements(elements, appState.selectedElementIds),
-      includeElementsInFrames: true,
+  );
-    });
-  const val = useRef(create());
-  const prevAppState = useRef<UIAppState>(appState);
-  const prevElements = useRef(elements);
 
-  if (
+  const selectedElementVersions = useRef(
-    !isShallowEqual(
+    new Map<ExcalidrawElement["id"], ExcalidrawElement["version"]>(),
-      appState.selectedElementIds,
+  );
-      prevAppState.current.selectedElementIds,
+
-    ) ||
+  useEffect(() => {
-    !isShallowEqual(elements, prevElements.current)
+    for (const element of state.pending) {
-  ) {
+      selectedElementVersions.current.set(element.id, element.version);
-    val.current = create();
+    }
-    prevAppState.current = appState;
+  }, [state.pending]);
-    prevElements.current = elements;
+
-  }
+  useEffect(() => {
-  return val.current;
+    if (
+      // Only update once pointer is released.
+      // Reading directly from app.state to make it clear it's not reactive
+      // (hence, there's potential for stale state)
+      app.state.cursorButton === "up" &&
+      app.state.activeTool.type === "selection"
+    ) {
+      setState((prev) => {
+        // if selectedElementIds changed, we don't have to compare versions
+        // ---------------------------------------------------------------------
+        if (
+          !isShallowEqual(prev.selectedElementIds, appState.selectedElementIds)
+        ) {
+          selectedElementVersions.current.clear();
+          return getPendingElements(elements, appState.selectedElementIds);
+        }
+        // otherwise we need to check whether selected elements changed
+        // ---------------------------------------------------------------------
+        const elementsMap = app.scene.getNonDeletedElementsMap();
+        for (const id of Object.keys(appState.selectedElementIds)) {
+          const currVersion = elementsMap.get(id)?.version;
+          if (
+            currVersion &&
+            currVersion !== selectedElementVersions.current.get(id)
+          ) {
+            // we can't update the selectedElementVersions in here
+            // because of double render in StrictMode which would overwrite
+            // the state in the second pass with the old `prev` state.
+            // Thus, we update versions in a separate effect. May create
+            // a race condition since current effect is not fully reactive.
+            return getPendingElements(elements, appState.selectedElementIds);
+          }
+        }
+        // nothing changed
+        // ---------------------------------------------------------------------
+        return prev;
+      });
+    }
+  }, [
+    app,
+    app.state.cursorButton,
+    app.state.activeTool.type,
+    appState.selectedElementIds,
+    elements,
+  ]);
+
+  return state.pending;
 };
 
 /**
  * This component is meant to be rendered inside <Sidebar.Tab/> inside our
  * <DefaultSidebar/> or host apps Sidebar components.
  */
-export const LibraryMenu = () => {
+export const LibraryMenu = memo(() => {
-  const { library, id, onInsertElements } = useApp();
+  const app = useApp();
+  const { onInsertElements } = app;
   const appProps = useAppProps();
   const appState = useUIAppState();
   const setAppState = useExcalidrawSetAppState();
-  const elements = useExcalidrawElements();
   const [selectedItems, setSelectedItems] = useState<LibraryItem["id"][]>([]);
-  const memoizedLibrary = useMemo(() => library, [library]);
+  const memoizedLibrary = useMemo(() => app.library, [app.library]);
-  // BUG: pendingElements are still causing some unnecessary rerenders because clicking into canvas returns some ids even when no element is selected.
+  const pendingElements = usePendingElementsMemo(appState, app);
-  const pendingElements = usePendingElementsMemo(appState, elements);
 
   const onInsertLibraryItems = useCallback(
     (libraryItems: LibraryItems) => {
@@ -211,10 +281,10 @@ export const LibraryMenu = () => {
       setAppState={setAppState}
       libraryReturnUrl={appProps.libraryReturnUrl}
       library={memoizedLibrary}
-      id={id}
+      id={app.id}
       theme={appState.theme}
       selectedItems={selectedItems}
       onSelectItems={setSelectedItems}
     />
   );
-};
+});

packages/excalidraw/components/MobileMenu.tsx

@@ -145,12 +145,14 @@ export const MobileMenu = ({
       <div className="App-toolbar-content">
         <MainMenuTunnel.Out />
         {actionManager.renderAction("toggleEditMenu")}
-        {actionManager.renderAction("undo")}
-        {actionManager.renderAction("redo")}
         {actionManager.renderAction(
           appState.multiElement ? "finalize" : "duplicateSelection",
         )}
         {actionManager.renderAction("deleteSelectedElements")}
+        <div>
+          {actionManager.renderAction("undo")}
+          {actionManager.renderAction("redo")}
+        </div>
       </div>
     );
   };

packages/excalidraw/components/Range.scss

@@ -0,0 +1,56 @@
+@import "../css/variables.module.scss";
+
+.excalidraw {
+  --slider-thumb-size: 16px;
+
+  .range-wrapper {
+    position: relative;
+    padding-top: 10px;
+    padding-bottom: 30px;
+  }
+
+  .range-input {
+    width: 100%;
+    height: 4px;
+    -webkit-appearance: none;
+    background: var(--color-slider-track);
+    border-radius: 2px;
+    outline: none;
+  }
+
+  .range-input::-webkit-slider-thumb {
+    -webkit-appearance: none;
+    appearance: none;
+    width: var(--slider-thumb-size);
+    height: var(--slider-thumb-size);
+    background: var(--color-slider-thumb);
+    border-radius: 50%;
+    cursor: pointer;
+    border: none;
+  }
+
+  .range-input::-moz-range-thumb {
+    width: var(--slider-thumb-size);
+    height: var(--slider-thumb-size);
+    background: var(--color-slider-thumb);
+    border-radius: 50%;
+    cursor: pointer;
+    border: none;
+  }
+
+  .value-bubble {
+    position: absolute;
+    bottom: 0;
+    transform: translateX(-50%);
+    font-size: 12px;
+    color: var(--text-primary-color);
+  }
+
+  .zero-label {
+    position: absolute;
+    bottom: 0;
+    left: 4px;
+    font-size: 12px;
+    color: var(--text-primary-color);
+  }
+}

packages/excalidraw/components/Range.tsx

@@ -0,0 +1,65 @@
+import React, { useEffect } from "react";
+import { getFormValue } from "../actions/actionProperties";
+import { t } from "../i18n";
+import "./Range.scss";
+
+export type RangeProps = {
+  updateData: (value: number) => void;
+  appState: any;
+  elements: any;
+  testId?: string;
+};
+
+export const Range = ({
+  updateData,
+  appState,
+  elements,
+  testId,
+}: RangeProps) => {
+  const rangeRef = React.useRef<HTMLInputElement>(null);
+  const valueRef = React.useRef<HTMLDivElement>(null);
+  const value = getFormValue(
+    elements,
+    appState,
+    (element) => element.opacity,
+    true,
+    appState.currentItemOpacity,
+  );
+  useEffect(() => {
+    if (rangeRef.current && valueRef.current) {
+      const rangeElement = rangeRef.current;
+      const valueElement = valueRef.current;
+      const inputWidth = rangeElement.offsetWidth;
+      const thumbWidth = 15; // 15 is the width of the thumb
+      const position =
+        (value / 100) * (inputWidth - thumbWidth) + thumbWidth / 2;
+      valueElement.style.left = `${position}px`;
+      rangeElement.style.background = `linear-gradient(to right, var(--color-slider-track) 0%, var(--color-slider-track) ${value}%, var(--button-bg) ${value}%, var(--button-bg) 100%)`;
+    }
+  }, [value]);
+
+  return (
+    <label className="control-label">
+      {t("labels.opacity")}
+      <div className="range-wrapper">
+        <input
+          ref={rangeRef}
+          type="range"
+          min="0"
+          max="100"
+          step="10"
+          onChange={(event) => {
+            updateData(+event.target.value);
+          }}
+          value={value}
+          className="range-input"
+          data-testid={testId}
+        />
+        <div className="value-bubble" ref={valueRef}>
+          {value !== 0 ? value : null}
+        </div>
+        <div className="zero-label">0</div>
+      </div>
+    </label>
+  );
+};

packages/excalidraw/components/SearchMenu.tsx

@@ -7,7 +7,6 @@ import { debounce } from "lodash";
 import type { AppClassProperties } from "../types";
 import { isTextElement, newTextElement } from "../element";
 import type { ExcalidrawTextElement } from "../element/types";
-import { measureText } from "../element/textElement";
 import { addEventListener, getFontString } from "../utils";
 import { KEYS } from "../keys";
 import clsx from "clsx";
@@ -20,6 +19,7 @@ import { useStable } from "../hooks/useStable";
 
 import "./SearchMenu.scss";
 import { round } from "../../math";
+import { measureText } from "../element/textMeasurements";
 
 const searchQueryAtom = atom<string>("");
 export const searchItemInFocusAtom = atom<number | null>(null);
@@ -607,7 +607,6 @@ const getMatchedLines = (
         textToStart,
         getFontString(textElement),
         textElement.lineHeight,
-        true,
       );
 
       // measureText returns a non-zero width for the empty string
@@ -621,7 +620,6 @@ const getMatchedLines = (
           lineIndexRange.line,
           getFontString(textElement),
           textElement.lineHeight,
-          true,
         );
 
         const spaceToStart =

packages/excalidraw/components/icons.tsx

@@ -1216,11 +1216,12 @@ export const EdgeRoundIcon = createIcon(
 );
 
 export const ArrowheadNoneIcon = createIcon(
-  <path d="M6 10H34" stroke="currentColor" strokeWidth={2} fill="none" />,
+  <g stroke="currentColor" opacity={0.3} strokeWidth={2}>
-  {
+    <path d="M12 12l9 0" />
-    width: 40,
+    <path d="M3 9l6 6" />
-    height: 20,
+    <path d="M3 15l6 -6" />
-  },
+  </g>,
+  tablerIconProps,
 );
 
 export const ArrowheadArrowIcon = React.memo(

packages/excalidraw/components/welcome-screen/WelcomeScreen.scss

@@ -1,6 +1,6 @@
 .excalidraw {
   .excalifont {
-    font-family: "Excalifont";
+    font-family: "Excalifont", "Xiaolai";
   }
 
   // WelcomeSreen common

packages/excalidraw/constants.ts

@@ -458,3 +458,6 @@ export const ARROW_TYPE: { [T in AppState["currentItemArrowType"]]: T } = {
 
 export const DEFAULT_REDUCED_GLOBAL_ALPHA = 0.3;
 export const ELEMENT_LINK_KEY = "element";
+
+/** used in tests */
+export const ORIG_ID = Symbol.for("__test__originalId__");

packages/excalidraw/css/styles.scss

@@ -649,15 +649,21 @@ body.excalidraw-cursor-resize * {
     @include filledButtonOnCanvas;
   }
 
+  .App-mobile-menu,
   .App-menu__left {
     --button-border: transparent;
     --button-bg: var(--color-surface-mid);
+  }
 
-    @at-root .excalidraw.theme--dark#{&} {
+  @at-root .excalidraw.theme--dark#{&} {
+    .App-mobile-menu,
+    .App-menu__left {
       --button-hover-bg: #363541;
       --button-bg: var(--color-surface-high);
     }
+  }
 
+  .App-menu__left {
     .buttonList {
       padding: 0.25rem 0;
     }

packages/excalidraw/css/theme.scss

@@ -53,6 +53,9 @@
   --scrollbar-thumb: var(--button-gray-2);
   --scrollbar-thumb-hover: var(--button-gray-3);
 
+  --color-slider-track: hsl(240, 100%, 90%);
+  --color-slider-thumb: var(--color-gray-80);
+
   --modal-shadow: 0px 100px 80px rgba(0, 0, 0, 0.07),
     0px 41.7776px 33.4221px rgba(0, 0, 0, 0.0503198),
     0px 22.3363px 17.869px rgba(0, 0, 0, 0.0417275),
@@ -207,6 +210,8 @@
     --scrollbar-thumb: #{$oc-gray-8};
     --scrollbar-thumb-hover: #{$oc-gray-7};
 
+    --color-slider-track: hsl(244, 23%, 39%);
+
     // will be inverted to a lighter color.
     --color-selection: #3530c4;
 

packages/excalidraw/data/restore.ts

@@ -46,7 +46,7 @@ import { bumpVersion } from "../element/mutateElement";
 import { getUpdatedTimestamp, updateActiveTool } from "../utils";
 import { arrayToMap } from "../utils";
 import type { MarkOptional, Mutable } from "../utility-types";
-import { detectLineHeight, getContainerElement } from "../element/textElement";
+import { getContainerElement } from "../element/textElement";
 import { normalizeLink } from "./url";
 import { syncInvalidIndices } from "../fractionalIndex";
 import { getSizeFromPoints } from "../points";
@@ -59,6 +59,7 @@ import {
 } from "../scene";
 import type { LocalPoint, Radians } from "../../math";
 import { isFiniteNumber, pointFrom } from "../../math";
+import { detectLineHeight } from "../element/textMeasurements";
 
 type RestoredAppState = Omit<
   AppState,
@@ -205,6 +206,24 @@ const restoreElementWithProperties = <
       "customData" in extra ? extra.customData : element.customData;
   }
 
+  // NOTE (mtolmacs): This is a temporary check to detect extremely large
+  // element position or sizing
+  if (
+    element.x < -1e6 ||
+    element.x > 1e6 ||
+    element.y < -1e6 ||
+    element.y > 1e6 ||
+    element.width < -1e6 ||
+    element.width > 1e6 ||
+    element.height < -1e6 ||
+    element.height > 1e6
+  ) {
+    console.error(
+      "Restore element with properties size or position is too large",
+      { element },
+    );
+  }
+
   return {
     // spread the original element properties to not lose unknown ones
     // for forward-compatibility
@@ -219,6 +238,21 @@ const restoreElementWithProperties = <
 const restoreElement = (
   element: Exclude<ExcalidrawElement, ExcalidrawSelectionElement>,
 ): typeof element | null => {
+  // NOTE (mtolmacs): This is a temporary check to detect extremely large
+  // element position or sizing
+  if (
+    element.x < -1e6 ||
+    element.x > 1e6 ||
+    element.y < -1e6 ||
+    element.y > 1e6 ||
+    element.width < -1e6 ||
+    element.width > 1e6 ||
+    element.height < -1e6 ||
+    element.height > 1e6
+  ) {
+    console.error("Restore element size or position is too large", { element });
+  }
+
   switch (element.type) {
     case "text":
       let fontSize = element.fontSize;

packages/excalidraw/data/transform.ts

@@ -19,7 +19,6 @@ import {
   newMagicFrameElement,
   newTextElement,
 } from "../element/newElement";
-import { measureText, normalizeText } from "../element/textElement";
 import type {
   ElementsMap,
   ExcalidrawArrowElement,
@@ -55,6 +54,7 @@ import { syncInvalidIndices } from "../fractionalIndex";
 import { getLineHeight } from "../fonts";
 import { isArrowElement } from "../element/typeChecks";
 import { pointFrom, type LocalPoint } from "../../math";
+import { measureText, normalizeText } from "../element/textMeasurements";
 
 export type ValidLinearElement = {
   type: "arrow" | "line";

packages/excalidraw/data/url.test.tsx

@@ -25,7 +25,7 @@ describe("normalizeLink", () => {
     expect(normalizeLink("file://")).toBe("file://");
     expect(normalizeLink("[test](https://test)")).toBe("[test](https://test)");
     expect(normalizeLink("[[test]]")).toBe("[[test]]");
-    expect(normalizeLink("<test>")).toBe("&lt;test&gt;");
+    expect(normalizeLink("<test>")).toBe("<test>");
-    expect(normalizeLink("test&")).toBe("test&amp;");
+    expect(normalizeLink("test&")).toBe("test&");
   });
 });

packages/excalidraw/data/url.ts

@@ -1,12 +1,12 @@
 import { sanitizeUrl } from "@braintree/sanitize-url";
-import { sanitizeHTMLAttribute } from "../utils";
+import { escapeDoubleQuotes } from "../utils";
 
 export const normalizeLink = (link: string) => {
   link = link.trim();
   if (!link) {
     return link;
   }
-  return sanitizeUrl(sanitizeHTMLAttribute(link));
+  return sanitizeUrl(escapeDoubleQuotes(link));
 };
 
 export const isLocalLink = (link: string | null) => {

packages/excalidraw/element/binding.ts

@@ -32,7 +32,6 @@ import type { Bounds } from "./bounds";
 import { getCenterForBounds, getElementAbsoluteCoords } from "./bounds";
 import type { AppState } from "../types";
 import { isPointOnShape } from "../../utils/collision";
-import { getElementAtPosition } from "../scene";
 import {
   isArrowElement,
   isBindableElement,
@@ -49,7 +48,11 @@ import type { ElementUpdate } from "./mutateElement";
 import { mutateElement } from "./mutateElement";
 import type Scene from "../scene/Scene";
 import { LinearElementEditor } from "./linearElementEditor";
-import { arrayToMap, tupleToCoors } from "../utils";
+import {
+  arrayToMap,
+  isBindingFallthroughEnabled,
+  tupleToCoors,
+} from "../utils";
 import { KEYS } from "../keys";
 import { getBoundTextElement, handleBindTextResize } from "./textElement";
 import { aabbForElement, getElementShape, pointInsideBounds } from "../shapes";
@@ -425,7 +428,8 @@ export const maybeBindLinearElement = (
     elements,
     elementsMap,
     appState.zoom,
-    isElbowArrow(linearElement) && isElbowArrow(linearElement),
+    isElbowArrow(linearElement),
+    isElbowArrow(linearElement),
   );
 
   if (hoveredElement !== null) {
@@ -558,8 +562,65 @@ export const getHoveredElementForBinding = (
   elementsMap: NonDeletedSceneElementsMap,
   zoom?: AppState["zoom"],
   fullShape?: boolean,
+  considerAllElements?: boolean,
 ): NonDeleted<ExcalidrawBindableElement> | null => {
-  const hoveredElement = getElementAtPosition(
+  if (considerAllElements) {
+    let cullRest = false;
+    const candidateElements = getAllElementsAtPositionForBinding(
+      elements,
+      (element) =>
+        isBindableElement(element, false) &&
+        bindingBorderTest(
+          element,
+          pointerCoords,
+          elementsMap,
+          zoom,
+          (fullShape ||
+            !isBindingFallthroughEnabled(
+              element as ExcalidrawBindableElement,
+            )) &&
+            // disable fullshape snapping for frame elements so we
+            // can bind to frame children
+            !isFrameLikeElement(element),
+        ),
+    ).filter((element) => {
+      if (cullRest) {
+        return false;
+      }
+
+      if (!isBindingFallthroughEnabled(element as ExcalidrawBindableElement)) {
+        cullRest = true;
+      }
+
+      return true;
+    }) as NonDeleted<ExcalidrawBindableElement>[] | null;
+
+    // Return early if there are no candidates or just one candidate
+    if (!candidateElements || candidateElements.length === 0) {
+      return null;
+    }
+
+    if (candidateElements.length === 1) {
+      return candidateElements[0] as NonDeleted<ExcalidrawBindableElement>;
+    }
+
+    // Prefer the shape with the border being tested (if any)
+    const borderTestElements = candidateElements.filter((element) =>
+      bindingBorderTest(element, pointerCoords, elementsMap, zoom, false),
+    );
+    if (borderTestElements.length === 1) {
+      return borderTestElements[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>;
+  }
+
+  const hoveredElement = getElementAtPositionForBinding(
     elements,
     (element) =>
       isBindableElement(element, false) &&
@@ -570,13 +631,58 @@ export const getHoveredElementForBinding = (
         zoom,
         // disable fullshape snapping for frame elements so we
         // can bind to frame children
-        fullShape && !isFrameLikeElement(element),
+        (fullShape || !isBindingFallthroughEnabled(element)) &&
+          !isFrameLikeElement(element),
       ),
   );
 
   return hoveredElement as NonDeleted<ExcalidrawBindableElement> | null;
 };
 
+const getElementAtPositionForBinding = (
+  elements: readonly NonDeletedExcalidrawElement[],
+  isAtPositionFn: (element: NonDeletedExcalidrawElement) => boolean,
+) => {
+  let hitElement = null;
+  // 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];
+    if (element.isDeleted) {
+      continue;
+    }
+    if (isAtPositionFn(element)) {
+      hitElement = element;
+      break;
+    }
+  }
+
+  return hitElement;
+};
+
+const getAllElementsAtPositionForBinding = (
+  elements: readonly NonDeletedExcalidrawElement[],
+  isAtPositionFn: (element: NonDeletedExcalidrawElement) => boolean,
+) => {
+  const elementsAtPosition: NonDeletedExcalidrawElement[] = [];
+  // 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];
+    if (element.isDeleted) {
+      continue;
+    }
+
+    if (isAtPositionFn(element)) {
+      elementsAtPosition.push(element);
+    }
+  }
+
+  return elementsAtPosition;
+};
+
 const calculateFocusAndGap = (
   linearElement: NonDeleted<ExcalidrawLinearElement>,
   hoveredElement: ExcalidrawBindableElement,
@@ -1220,6 +1326,8 @@ const getElligibleElementForBindingElement = (
     elements,
     elementsMap,
     zoom,
+    isElbowArrow(linearElement),
+    isElbowArrow(linearElement),
   );
 };
 

packages/excalidraw/element/dragElements.ts

@@ -10,7 +10,7 @@ import type {
   NullableGridSize,
   PointerDownState,
 } from "../types";
-import { getBoundTextElement, getMinTextElementWidth } from "./textElement";
+import { getBoundTextElement } from "./textElement";
 import type Scene from "../scene/Scene";
 import {
   isArrowElement,
@@ -22,6 +22,7 @@ import {
 import { getFontString } from "../utils";
 import { TEXT_AUTOWRAP_THRESHOLD } from "../constants";
 import { getGridPoint } from "../snapping";
+import { getMinTextElementWidth } from "./textMeasurements";
 
 export const dragSelectedElements = (
   pointerDownState: PointerDownState,

packages/excalidraw/element/elbowArrow.ts

@@ -1,4 +1,5 @@
 import {
+  clamp,
   pointDistance,
   pointFrom,
   pointScaleFromOrigin,
@@ -20,11 +21,11 @@ import {
   bindPointToSnapToElementOutline,
   distanceToBindableElement,
   avoidRectangularCorner,
-  getHoveredElementForBinding,
   FIXED_BINDING_DISTANCE,
   getHeadingForElbowArrowSnap,
   getGlobalFixedPointForBindableElement,
   snapToMid,
+  getHoveredElementForBinding,
 } from "./binding";
 import type { Bounds } from "./bounds";
 import type { Heading } from "./heading";
@@ -104,7 +105,7 @@ const handleSegmentRenormalization = (
   elementsMap: NonDeletedSceneElementsMap | SceneElementsMap,
 ) => {
   const nextFixedSegments: FixedSegment[] | null = arrow.fixedSegments
-    ? structuredClone(arrow.fixedSegments)
+    ? arrow.fixedSegments.slice()
     : null;
 
   if (nextFixedSegments) {
@@ -244,6 +245,12 @@ const handleSegmentRenormalization = (
       );
     }
 
+    import.meta.env.DEV &&
+      invariant(
+        validateElbowPoints(nextPoints),
+        "Invalid elbow points with fixed segments",
+      );
+
     return normalizeArrowElementUpdate(
       nextPoints,
       filteredNextFixedSegments,
@@ -264,7 +271,7 @@ const handleSegmentRenormalization = (
 
 const handleSegmentRelease = (
   arrow: ExcalidrawElbowArrowElement,
-  fixedSegments: FixedSegment[],
+  fixedSegments: readonly FixedSegment[],
   elementsMap: NonDeletedSceneElementsMap | SceneElementsMap,
 ) => {
   const newFixedSegmentIndices = fixedSegments.map((segment) => segment.index);
@@ -438,7 +445,7 @@ const handleSegmentRelease = (
  */
 const handleSegmentMove = (
   arrow: ExcalidrawElbowArrowElement,
-  fixedSegments: FixedSegment[],
+  fixedSegments: readonly FixedSegment[],
   startHeading: Heading,
   endHeading: Heading,
   hoveredStartElement: ExcalidrawBindableElement | null,
@@ -680,7 +687,7 @@ const handleSegmentMove = (
 const handleEndpointDrag = (
   arrow: ExcalidrawElbowArrowElement,
   updatedPoints: readonly LocalPoint[],
-  fixedSegments: FixedSegment[],
+  fixedSegments: readonly FixedSegment[],
   startHeading: Heading,
   endHeading: Heading,
   startGlobalPoint: GlobalPoint,
@@ -857,6 +864,8 @@ const handleEndpointDrag = (
   );
 };
 
+const MAX_POS = 1e6;
+
 /**
  *
  */
@@ -866,6 +875,8 @@ export const updateElbowArrowPoints = (
   updates: {
     points?: readonly LocalPoint[];
     fixedSegments?: FixedSegment[] | null;
+    startBinding?: FixedPointBinding | null;
+    endBinding?: FixedPointBinding | null;
   },
   options?: {
     isDragging?: boolean;
@@ -875,6 +886,50 @@ export const updateElbowArrowPoints = (
     return { points: updates.points ?? arrow.points };
   }
 
+  // NOTE (mtolmacs): This is a temporary check to ensure that the incoming elbow
+  // arrow size is valid. This check will be removed once the issue is identified
+  if (
+    arrow.x < -MAX_POS ||
+    arrow.x > MAX_POS ||
+    arrow.y < -MAX_POS ||
+    arrow.y > MAX_POS ||
+    arrow.x + (updates?.points?.[updates?.points?.length - 1]?.[0] ?? 0) <
+      -MAX_POS ||
+    arrow.x + (updates?.points?.[updates?.points?.length - 1]?.[0] ?? 0) >
+      MAX_POS ||
+    arrow.y + (updates?.points?.[updates?.points?.length - 1]?.[1] ?? 0) <
+      -MAX_POS ||
+    arrow.y + (updates?.points?.[updates?.points?.length - 1]?.[1] ?? 0) >
+      MAX_POS ||
+    arrow.x + (arrow?.points?.[arrow?.points?.length - 1]?.[0] ?? 0) <
+      -MAX_POS ||
+    arrow.x + (arrow?.points?.[arrow?.points?.length - 1]?.[0] ?? 0) >
+      MAX_POS ||
+    arrow.y + (arrow?.points?.[arrow?.points?.length - 1]?.[1] ?? 0) <
+      -MAX_POS ||
+    arrow.y + (arrow?.points?.[arrow?.points?.length - 1]?.[1] ?? 0) > MAX_POS
+  ) {
+    console.error(
+      "Elbow arrow (or update) is outside reasonable bounds (> 1e6)",
+      {
+        arrow,
+        updates,
+      },
+    );
+  }
+  // @ts-ignore See above note
+  arrow.x = clamp(arrow.x, -MAX_POS, MAX_POS);
+  // @ts-ignore See above note
+  arrow.y = clamp(arrow.y, -MAX_POS, MAX_POS);
+  if (updates.points) {
+    updates.points = updates.points.map(([x, y]) =>
+      pointFrom<LocalPoint>(
+        clamp(x, -MAX_POS, MAX_POS),
+        clamp(y, -MAX_POS, MAX_POS),
+      ),
+    );
+  }
+
   if (!import.meta.env.PROD) {
     invariant(
       !updates.points || updates.points.length >= 2,
@@ -912,7 +967,11 @@ export const updateElbowArrowPoints = (
   // 0. During all element replacement in the scene, we just need to renormalize
   // the arrow
   // TODO (dwelle,mtolmacs): Remove this once Scene.getScene() is removed
-  if (elementsMap.size === 0 && updates.points) {
+  if (
+    elementsMap.size === 0 &&
+    updates.points &&
+    validateElbowPoints(updates.points)
+  ) {
     return normalizeArrowElementUpdate(
       updates.points.map((p) =>
         pointFrom<GlobalPoint>(arrow.x + p[0], arrow.y + p[1]),
@@ -932,8 +991,8 @@ export const updateElbowArrowPoints = (
             ? updates.points![1]
             : p,
         )
-      : structuredClone(updates.points)
+      : updates.points.slice()
-    : structuredClone(arrow.points);
+    : arrow.points.slice();
 
   const {
     startHeading,
@@ -943,17 +1002,48 @@ export const updateElbowArrowPoints = (
     hoveredStartElement,
     hoveredEndElement,
     ...rest
-  } = getElbowArrowData(arrow, elementsMap, updatedPoints, options);
+  } = getElbowArrowData(
+    {
+      x: arrow.x,
+      y: arrow.y,
+      startBinding:
+        typeof updates.startBinding !== "undefined"
+          ? updates.startBinding
+          : arrow.startBinding,
+      endBinding:
+        typeof updates.endBinding !== "undefined"
+          ? updates.endBinding
+          : arrow.endBinding,
+      startArrowhead: arrow.startArrowhead,
+      endArrowhead: arrow.endArrowhead,
+    },
+    elementsMap,
+    updatedPoints,
+    options,
+  );
 
   const fixedSegments = updates.fixedSegments ?? arrow.fixedSegments ?? [];
 
   ////
   // 1. Renormalize the arrow
   ////
-  if (!updates.points && !updates.fixedSegments) {
+  if (
+    !updates.points &&
+    !updates.fixedSegments &&
+    !updates.startBinding &&
+    !updates.endBinding
+  ) {
     return handleSegmentRenormalization(arrow, elementsMap);
   }
 
+  // Short circuit on no-op to avoid huge performance hit
+  if (
+    updates.startBinding === arrow.startBinding &&
+    updates.endBinding === arrow.endBinding
+  ) {
+    return {};
+  }
+
   ////
   // 2. Just normal elbow arrow things
   ////
@@ -1000,6 +1090,7 @@ export const updateElbowArrowPoints = (
 
   ////
   // 5. Handle resize
+  ////
   if (updates.points && updates.fixedSegments) {
     return updates;
   }
@@ -1921,7 +2012,7 @@ const getBindableElementForId = (
 
 const normalizeArrowElementUpdate = (
   global: GlobalPoint[],
-  nextFixedSegments: FixedSegment[] | null,
+  nextFixedSegments: readonly FixedSegment[] | null,
   startIsSpecial?: ExcalidrawElbowArrowElement["startIsSpecial"],
   endIsSpecial?: ExcalidrawElbowArrowElement["startIsSpecial"],
 ): {
@@ -1930,24 +2021,51 @@ const normalizeArrowElementUpdate = (
   y: number;
   width: number;
   height: number;
-  fixedSegments: FixedSegment[] | null;
+  fixedSegments: readonly FixedSegment[] | null;
   startIsSpecial?: ExcalidrawElbowArrowElement["startIsSpecial"];
   endIsSpecial?: ExcalidrawElbowArrowElement["startIsSpecial"];
 } => {
   const offsetX = global[0][0];
   const offsetY = global[0][1];
 
-  const points = global.map((p) =>
+  let points = global.map((p) =>
     pointTranslate<GlobalPoint, LocalPoint>(
       p,
       vectorScale(vectorFromPoint(global[0]), -1),
     ),
   );
 
+  // NOTE (mtolmacs): This is a temporary check to see if the normalization
+  // creates an overly large arrow. This should be removed once we have an answer.
+  if (
+    offsetX < -MAX_POS ||
+    offsetX > MAX_POS ||
+    offsetY < -MAX_POS ||
+    offsetY > MAX_POS ||
+    offsetX + points[points.length - 1][0] < -MAX_POS ||
+    offsetY + points[points.length - 1][0] > MAX_POS ||
+    offsetX + points[points.length - 1][1] < -MAX_POS ||
+    offsetY + points[points.length - 1][1] > MAX_POS
+  ) {
+    console.error(
+      "Elbow arrow normalization is outside reasonable bounds (> 1e6)",
+      {
+        x: offsetX,
+        y: offsetY,
+        points,
+        ...getSizeFromPoints(points),
+      },
+    );
+  }
+
+  points = points.map(([x, y]) =>
+    pointFrom<LocalPoint>(clamp(x, -1e6, 1e6), clamp(y, -1e6, 1e6)),
+  );
+
   return {
     points,
-    x: offsetX,
+    x: clamp(offsetX, -1e6, 1e6),
-    y: offsetY,
+    y: clamp(offsetY, -1e6, 1e6),
     fixedSegments:
       (nextFixedSegments?.length ?? 0) > 0 ? nextFixedSegments : null,
     ...getSizeFromPoints(points),
@@ -2110,6 +2228,7 @@ const getHoveredElements = (
       nonDeletedSceneElementsMap,
       zoom,
       true,
+      true,
     ),
     getHoveredElementForBinding(
       tupleToCoors(origEndGlobalPoint),
@@ -2117,9 +2236,23 @@ const getHoveredElements = (
       nonDeletedSceneElementsMap,
       zoom,
       true,
+      true,
     ),
   ];
 };
 
 const gridAddressesEqual = (a: GridAddress, b: GridAddress): boolean =>
   a[0] === b[0] && a[1] === b[1];
+
+const validateElbowPoints = <P extends GlobalPoint | LocalPoint>(
+  points: readonly P[],
+  tolerance: number = DEDUP_TRESHOLD,
+) =>
+  points
+    .slice(1)
+    .map(
+      (p, i) =>
+        Math.abs(p[0] - points[i][0]) < tolerance ||
+        Math.abs(p[1] - points[i][1]) < tolerance,
+    )
+    .every(Boolean);

packages/excalidraw/element/embeddable.ts

@@ -1,11 +1,7 @@
 import { register } from "../actions/register";
 import { FONT_FAMILY, VERTICAL_ALIGN } from "../constants";
 import type { ExcalidrawProps } from "../types";
-import {
+import { escapeDoubleQuotes, getFontString, updateActiveTool } from "../utils";
-  getFontString,
-  sanitizeHTMLAttribute,
-  updateActiveTool,
-} from "../utils";
 import { setCursorForShape } from "../cursor";
 import { newTextElement } from "./newElement";
 import { wrapText } from "./textWrapping";
@@ -212,7 +208,7 @@ export const getEmbedLink = (
     // Note that we don't attempt to parse the username as it can consist of
     // non-latin1 characters, and the username in the url can be set to anything
     // without affecting the embed.
-    const safeURL = sanitizeHTMLAttribute(
+    const safeURL = escapeDoubleQuotes(
       `https://twitter.com/x/status/${postId}`,
     );
 
@@ -231,7 +227,7 @@ export const getEmbedLink = (
 
   if (RE_REDDIT.test(link)) {
     const [, page, postId, title] = link.match(RE_REDDIT)!;
-    const safeURL = sanitizeHTMLAttribute(
+    const safeURL = escapeDoubleQuotes(
       `https://reddit.com/r/${page}/comments/${postId}/${title}`,
     );
     const ret: IframeDataWithSandbox = {
@@ -249,7 +245,7 @@ export const getEmbedLink = (
 
   if (RE_GH_GIST.test(link)) {
     const [, user, gistId] = link.match(RE_GH_GIST)!;
-    const safeURL = sanitizeHTMLAttribute(
+    const safeURL = escapeDoubleQuotes(
       `https://gist.github.com/${user}/${gistId}`,
     );
     const ret: IframeDataWithSandbox = {

packages/excalidraw/element/flowchart.test.tsx

@@ -310,95 +310,4 @@ describe("flow chart navigation", () => {
     Keyboard.keyUp(KEYS.ALT);
     expect(h.state.selectedElementIds[rectangle.id]).toBe(true);
   });
-
-  it("take the most obvious link when possible", () => {
-    /**
-     * ▨ → ▨   ▨ → ▨
-     *     ↓   ↑
-     *     ▨ → ▨
-     */
-
-    API.clearSelection();
-    const rectangle = API.createElement({
-      type: "rectangle",
-      width: 200,
-      height: 100,
-    });
-
-    API.setElements([rectangle]);
-    API.setSelectedElements([rectangle]);
-
-    Keyboard.withModifierKeys({ ctrl: true }, () => {
-      Keyboard.keyPress(KEYS.ARROW_RIGHT);
-    });
-    Keyboard.keyUp(KEYS.CTRL_OR_CMD);
-
-    Keyboard.withModifierKeys({ ctrl: true }, () => {
-      Keyboard.keyPress(KEYS.ARROW_DOWN);
-    });
-    Keyboard.keyUp(KEYS.CTRL_OR_CMD);
-
-    Keyboard.withModifierKeys({ ctrl: true }, () => {
-      Keyboard.keyPress(KEYS.ARROW_RIGHT);
-    });
-    Keyboard.keyUp(KEYS.CTRL_OR_CMD);
-
-    Keyboard.withModifierKeys({ ctrl: true }, () => {
-      Keyboard.keyPress(KEYS.ARROW_UP);
-    });
-    Keyboard.keyUp(KEYS.CTRL_OR_CMD);
-
-    Keyboard.withModifierKeys({ ctrl: true }, () => {
-      Keyboard.keyPress(KEYS.ARROW_RIGHT);
-    });
-    Keyboard.keyUp(KEYS.CTRL_OR_CMD);
-
-    // last node should be the one that's selected
-    const rightMostNode = h.elements[h.elements.length - 2];
-    expect(rightMostNode.type).toBe("rectangle");
-    expect(h.state.selectedElementIds[rightMostNode.id]).toBe(true);
-
-    Keyboard.withModifierKeys({ alt: true }, () => {
-      Keyboard.keyPress(KEYS.ARROW_LEFT);
-      Keyboard.keyPress(KEYS.ARROW_LEFT);
-      Keyboard.keyPress(KEYS.ARROW_LEFT);
-      Keyboard.keyPress(KEYS.ARROW_LEFT);
-      Keyboard.keyPress(KEYS.ARROW_LEFT);
-    });
-    Keyboard.keyUp(KEYS.ALT);
-
-    expect(h.state.selectedElementIds[rectangle.id]).toBe(true);
-
-    // going any direction takes us to the predecessor as well
-    const predecessorToRightMostNode = h.elements[h.elements.length - 4];
-    expect(predecessorToRightMostNode.type).toBe("rectangle");
-
-    API.setSelectedElements([rightMostNode]);
-    Keyboard.withModifierKeys({ alt: true }, () => {
-      Keyboard.keyPress(KEYS.ARROW_RIGHT);
-    });
-    Keyboard.keyUp(KEYS.ALT);
-    expect(h.state.selectedElementIds[rightMostNode.id]).not.toBe(true);
-    expect(h.state.selectedElementIds[predecessorToRightMostNode.id]).toBe(
-      true,
-    );
-    API.setSelectedElements([rightMostNode]);
-    Keyboard.withModifierKeys({ alt: true }, () => {
-      Keyboard.keyPress(KEYS.ARROW_UP);
-    });
-    Keyboard.keyUp(KEYS.ALT);
-    expect(h.state.selectedElementIds[rightMostNode.id]).not.toBe(true);
-    expect(h.state.selectedElementIds[predecessorToRightMostNode.id]).toBe(
-      true,
-    );
-    API.setSelectedElements([rightMostNode]);
-    Keyboard.withModifierKeys({ alt: true }, () => {
-      Keyboard.keyPress(KEYS.ARROW_DOWN);
-    });
-    Keyboard.keyUp(KEYS.ALT);
-    expect(h.state.selectedElementIds[rightMostNode.id]).not.toBe(true);
-    expect(h.state.selectedElementIds[predecessorToRightMostNode.id]).toBe(
-      true,
-    );
-  });
 });

packages/excalidraw/element/flowchart.ts

@@ -10,13 +10,15 @@ import {
 import { bindLinearElement } from "./binding";
 import { LinearElementEditor } from "./linearElementEditor";
 import { newArrowElement, newElement } from "./newElement";
-import type {
+import type { SceneElementsMap } from "./types";
-  ElementsMap,
+import {
-  ExcalidrawBindableElement,
+  type ElementsMap,
-  ExcalidrawElement,
+  type ExcalidrawBindableElement,
-  ExcalidrawFlowchartNodeElement,
+  type ExcalidrawElement,
-  NonDeletedSceneElementsMap,
+  type ExcalidrawFlowchartNodeElement,
-  OrderedExcalidrawElement,
+  type NonDeletedSceneElementsMap,
+  type Ordered,
+  type OrderedExcalidrawElement,
 } from "./types";
 import { KEYS } from "../keys";
 import type { AppState, PendingExcalidrawElements } from "../types";
@@ -28,9 +30,13 @@ import {
   isFrameElement,
   isFlowchartNodeElement,
 } from "./typeChecks";
-import { invariant } from "../utils";
+import { invariant, toBrandedType } from "../utils";
 import { pointFrom, type LocalPoint } from "../../math";
 import { aabbForElement } from "../shapes";
+import { updateElbowArrowPoints } from "./elbowArrow";
+import type App from "../components/App";
+import { makeNextSelectedElementIds } from "../scene/selection";
+import { isElementCompletelyInViewport } from "./sizeHelpers";
 
 type LinkDirection = "up" | "right" | "down" | "left";
 
@@ -467,67 +473,75 @@ const createBindingArrow = (
     },
   ]);
 
-  return bindingArrow;
+  const update = updateElbowArrowPoints(
+    bindingArrow,
+    toBrandedType<SceneElementsMap>(
+      new Map([
+        ...elementsMap.entries(),
+        [startBindingElement.id, startBindingElement],
+        [endBindingElement.id, endBindingElement],
+        [bindingArrow.id, bindingArrow],
+      ] as [string, Ordered<ExcalidrawElement>][]),
+    ),
+    { points: bindingArrow.points },
+  );
+
+  return {
+    ...bindingArrow,
+    ...update,
+  };
 };
 
 export class FlowChartNavigator {
   isExploring: boolean = false;
-  // nodes that are ONE link away (successor and predecessor both included)
+
-  private sameLevelNodes: ExcalidrawElement[] = [];
+  private app: App;
-  private sameLevelIndex: number = 0;
+  private siblingNodes: ExcalidrawElement[] = [];
-  // set it to the opposite of the defalut creation direction
+  private siblingIndex: number = 0;
   private direction: LinkDirection | null = null;
-  // for speedier navigation
+
-  private visitedNodes: Set<ExcalidrawElement["id"]> = new Set();
+  constructor(app: App) {
+    this.app = app;
+  }
 
   clear() {
     this.isExploring = false;
-    this.sameLevelNodes = [];
+    this.siblingNodes = [];
-    this.sameLevelIndex = 0;
+    this.siblingIndex = 0;
     this.direction = null;
-    this.visitedNodes.clear();
   }
 
-  exploreByDirection(
+  /**
-    element: ExcalidrawElement,
+   * Explore the flowchart by the given direction.
-    elementsMap: ElementsMap,
+   *
-    direction: LinkDirection,
+   * The exploration follows a (near) breadth-first approach: when there're multiple
-  ): ExcalidrawElement["id"] | null {
+   * nodes at the same level, we allow the user to traverse through them.
+   */
+  exploreByDirection(element: ExcalidrawElement, direction: LinkDirection) {
     if (!isBindableElement(element)) {
-      return null;
+      return;
     }
 
+    const elementsMap = this.app.scene.getNonDeletedElementsMap();
+
     // clear if going at a different direction
     if (direction !== this.direction) {
       this.clear();
     }
 
-    // add the current node to the visited
-    if (!this.visitedNodes.has(element.id)) {
-      this.visitedNodes.add(element.id);
-    }
-
     /**
-     * CASE:
+     * if we're already exploring (holding the alt key)
-     * - already started exploring, AND
+     * and the direction is the same as the previous one
-     * - there are multiple nodes at the same level, AND
+     * and there're multiple nodes at the same level
-     * - still going at the same direction, AND
+     * then we should traverse through them before moving to the next level
-     *
-     * RESULT:
-     * - loop through nodes at the same level
-     *
-     * WHY:
-     * - provides user the capability to loop through nodes at the same level
      */
     if (
       this.isExploring &&
       direction === this.direction &&
-      this.sameLevelNodes.length > 1
+      this.siblingNodes.length > 1
     ) {
-      this.sameLevelIndex =
+      this.siblingIndex = (this.siblingIndex + 1) % this.siblingNodes.length;
-        (this.sameLevelIndex + 1) % this.sameLevelNodes.length;
+      return this.goToNode(this.siblingNodes[this.siblingIndex].id);
-
-      return this.sameLevelNodes[this.sameLevelIndex].id;
     }
 
     const nodes = [
@@ -535,70 +549,52 @@ export class FlowChartNavigator {
       ...getPredecessors(element, elementsMap, direction),
     ];
 
-    /**
-     * CASE:
-     * - just started exploring at the given direction
-     *
-     * RESULT:
-     * - go to the first node in the given direction
-     */
     if (nodes.length > 0) {
-      this.sameLevelIndex = 0;
+      this.siblingIndex = 0;
       this.isExploring = true;
-      this.sameLevelNodes = nodes;
+      this.siblingNodes = nodes;
       this.direction = direction;
-      this.visitedNodes.add(nodes[0].id);
 
-      return nodes[0].id;
+      this.goToNode(nodes[0].id);
     }
-
-    /**
-     * CASE:
-     * - (just started exploring or still going at the same direction) OR
-     * - there're no nodes at the given direction
-     *
-     * RESULT:
-     * - go to some other unvisited linked node
-     *
-     * WHY:
-     * - provide a speedier navigation from a given node to some predecessor
-     *   without the user having to change arrow key
-     */
-    if (direction === this.direction || !this.isExploring) {
-      if (!this.isExploring) {
-        // just started and no other nodes at the given direction
-        // so the current node is technically the first visited node
-        // (this is needed so that we don't get stuck between looping through )
-        this.visitedNodes.add(element.id);
-      }
-
-      const otherDirections: LinkDirection[] = [
-        "up",
-        "right",
-        "down",
-        "left",
-      ].filter((dir): dir is LinkDirection => dir !== direction);
-
-      const otherLinkedNodes = otherDirections
-        .map((dir) => [
-          ...getSuccessors(element, elementsMap, dir),
-          ...getPredecessors(element, elementsMap, dir),
-        ])
-        .flat()
-        .filter((linkedNode) => !this.visitedNodes.has(linkedNode.id));
-
-      for (const linkedNode of otherLinkedNodes) {
-        if (!this.visitedNodes.has(linkedNode.id)) {
-          this.visitedNodes.add(linkedNode.id);
-          this.isExploring = true;
-          this.direction = direction;
-          return linkedNode.id;
-        }
-      }
-    }
-
-    return null;
   }
+
+  private goToNode = (nodeId: ExcalidrawElement["id"]) => {
+    this.app.setState((prevState) => ({
+      selectedElementIds: makeNextSelectedElementIds(
+        {
+          [nodeId]: true,
+        },
+        prevState,
+      ),
+    }));
+
+    const nextNode = this.app.scene.getNonDeletedElementsMap().get(nodeId);
+
+    if (
+      nextNode &&
+      !isElementCompletelyInViewport(
+        [nextNode],
+        this.app.canvas.width / window.devicePixelRatio,
+        this.app.canvas.height / window.devicePixelRatio,
+        {
+          offsetLeft: this.app.state.offsetLeft,
+          offsetTop: this.app.state.offsetTop,
+          scrollX: this.app.state.scrollX,
+          scrollY: this.app.state.scrollY,
+          zoom: this.app.state.zoom,
+        },
+        this.app.scene.getNonDeletedElementsMap(),
+        this.app.getEditorUIOffsets(),
+      )
+    ) {
+      this.app.scrollToContent(nextNode, {
+        animate: true,
+        duration: 300,
+        canvasOffsets: this.app.getEditorUIOffsets(),
+      });
+    }
+  };
 }
 
 export class FlowChartCreator {

packages/excalidraw/element/linearElementEditor.ts

@@ -444,6 +444,8 @@ export class LinearElementEditor {
                 elements,
                 elementsMap,
                 appState.zoom,
+                isElbowArrow(element),
+                isElbowArrow(element),
               )
             : null;
 
@@ -796,6 +798,7 @@ export class LinearElementEditor {
           elements,
           elementsMap,
           app.state.zoom,
+          linearElementEditor.elbowed,
         ),
       };
 

packages/excalidraw/element/mutateElement.ts

@@ -33,13 +33,16 @@ export const mutateElement = <TElement extends Mutable<ExcalidrawElement>>(
 
   // 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, fileId, startBinding, endBinding } =
+    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
   ) {
     const elementsMap = toBrandedType<SceneElementsMap>(
       Scene.getScene(element)?.getNonDeletedElementsMap() ?? new Map(),
@@ -58,6 +61,8 @@ export const mutateElement = <TElement extends Mutable<ExcalidrawElement>>(
         {
           fixedSegments,
           points,
+          startBinding,
+          endBinding,
         },
         {
           isDragging: options?.isDragging,

packages/excalidraw/element/newElement.ts

@@ -33,11 +33,7 @@ import { getNewGroupIdsForDuplication } from "../groups";
 import type { AppState } from "../types";
 import { getElementAbsoluteCoords } from ".";
 import { getResizedElementAbsoluteCoords } from "./bounds";
-import {
+import { getBoundTextMaxWidth } from "./textElement";
-  measureText,
-  normalizeText,
-  getBoundTextMaxWidth,
-} from "./textElement";
 import { wrapText } from "./textWrapping";
 import {
   DEFAULT_ELEMENT_PROPS,
@@ -45,11 +41,13 @@ import {
   DEFAULT_FONT_SIZE,
   DEFAULT_TEXT_ALIGN,
   DEFAULT_VERTICAL_ALIGN,
+  ORIG_ID,
   VERTICAL_ALIGN,
 } from "../constants";
 import type { MarkOptional, Merge, Mutable } from "../utility-types";
 import { getLineHeight } from "../fonts";
 import type { Radians } from "../../math";
+import { normalizeText, measureText } from "./textMeasurements";
 
 export type ElementConstructorOpts = MarkOptional<
   Omit<ExcalidrawGenericElement, "id" | "type" | "isDeleted" | "updated">,
@@ -101,6 +99,28 @@ const _newElementBase = <T extends ExcalidrawElement>(
     ...rest
   }: ElementConstructorOpts & Omit<Partial<ExcalidrawGenericElement>, "type">,
 ) => {
+  // NOTE (mtolmacs): This is a temporary check to detect extremely large
+  // element position or sizing
+  if (
+    x < -1e6 ||
+    x > 1e6 ||
+    y < -1e6 ||
+    y > 1e6 ||
+    width < -1e6 ||
+    width > 1e6 ||
+    height < -1e6 ||
+    height > 1e6
+  ) {
+    console.error("New element size or position is too large", {
+      x,
+      y,
+      width,
+      height,
+      // @ts-ignore
+      points: rest.points,
+    });
+  }
+
   // assign type to guard against excess properties
   const element: Merge<ExcalidrawGenericElement, { type: T["type"] }> = {
     id: rest.id || randomId(),
@@ -592,26 +612,18 @@ export const deepCopyElement = <T extends ExcalidrawElement>(
   return _deepCopyElement(val);
 };
 
+const __test__defineOrigId = (clonedObj: object, origId: string) => {
+  Object.defineProperty(clonedObj, ORIG_ID, {
+    value: origId,
+    writable: false,
+    enumerable: false,
+  });
+};
+
 /**
- * utility wrapper to generate new id. In test env it reuses the old + postfix
+ * utility wrapper to generate new id.
- * for test assertions.
  */
-export const regenerateId = (
+const regenerateId = () => {
-  /** supply null if no previous id exists */
-  previousId: string | null,
-) => {
-  if (isTestEnv() && previousId) {
-    let nextId = `${previousId}_copy`;
-    // `window.h` may not be defined in some unit tests
-    if (
-      window.h?.app
-        ?.getSceneElementsIncludingDeleted()
-        .find((el: ExcalidrawElement) => el.id === nextId)
-    ) {
-      nextId += "_copy";
-    }
-    return nextId;
-  }
   return randomId();
 };
 
@@ -637,7 +649,11 @@ export const duplicateElement = <TElement extends ExcalidrawElement>(
 ): Readonly<TElement> => {
   let copy = deepCopyElement(element);
 
-  copy.id = regenerateId(copy.id);
+  if (isTestEnv()) {
+    __test__defineOrigId(copy, element.id);
+  }
+
+  copy.id = regenerateId();
   copy.boundElements = null;
   copy.updated = getUpdatedTimestamp();
   copy.seed = randomInteger();
@@ -646,7 +662,7 @@ export const duplicateElement = <TElement extends ExcalidrawElement>(
     editingGroupId,
     (groupId) => {
       if (!groupIdMapForOperation.has(groupId)) {
-        groupIdMapForOperation.set(groupId, regenerateId(groupId));
+        groupIdMapForOperation.set(groupId, regenerateId());
       }
       return groupIdMapForOperation.get(groupId)!;
     },
@@ -692,7 +708,7 @@ export const duplicateElements = (
     // if we haven't migrated the element id, but an old element with the same
     // id exists, generate a new id for it and return it
     if (origElementsMap.has(id)) {
-      const newId = regenerateId(id);
+      const newId = regenerateId();
       elementNewIdsMap.set(id, newId);
       return newId;
     }
@@ -706,6 +722,9 @@ export const duplicateElements = (
     const clonedElement: Mutable<ExcalidrawElement> = _deepCopyElement(element);
 
     clonedElement.id = maybeGetNewId(element.id)!;
+    if (isTestEnv()) {
+      __test__defineOrigId(clonedElement, element.id);
+    }
 
     if (opts?.randomizeSeed) {
       clonedElement.seed = randomInteger();
@@ -715,7 +734,7 @@ export const duplicateElements = (
     if (clonedElement.groupIds) {
       clonedElement.groupIds = clonedElement.groupIds.map((groupId) => {
         if (!groupNewIdsMap.has(groupId)) {
-          groupNewIdsMap.set(groupId, regenerateId(groupId));
+          groupNewIdsMap.set(groupId, regenerateId());
         }
         return groupNewIdsMap.get(groupId)!;
       });

packages/excalidraw/element/resizeElements.ts

@@ -41,15 +41,11 @@ import type {
 import type { PointerDownState } from "../types";
 import type Scene from "../scene/Scene";
 import {
-  getApproxMinLineWidth,
   getBoundTextElement,
   getBoundTextElementId,
   getContainerElement,
   handleBindTextResize,
   getBoundTextMaxWidth,
-  getApproxMinLineHeight,
-  measureText,
-  getMinTextElementWidth,
 } from "./textElement";
 import { wrapText } from "./textWrapping";
 import { LinearElementEditor } from "./linearElementEditor";
@@ -64,6 +60,12 @@ import {
   type Radians,
   type LocalPoint,
 } from "../../math";
+import {
+  getMinTextElementWidth,
+  measureText,
+  getApproxMinLineWidth,
+  getApproxMinLineHeight,
+} from "./textMeasurements";
 
 // Returns true when transform (resizing/rotation) happened
 export const transformElements = (
@@ -767,6 +769,26 @@ const getResizedOrigin = (
         y: y - (newHeight - prevHeight) / 2,
       };
     case "east-side":
+      // NOTE (mtolmacs): Reverting this for a short period to test if it is
+      // the cause of the megasized elbow arrows showing up.
+      if (
+        Math.abs(
+          y +
+            ((prevWidth - newWidth) / 2) * Math.sin(angle) +
+            (prevHeight - newHeight) / 2,
+        ) > 1e6
+      ) {
+        console.error(
+          "getResizedOrigin() new calculation creates extremely large (> 1e6) y value where the old calculation resulted in",
+          {
+            result:
+              y +
+              (newHeight - prevHeight) / 2 +
+              ((prevWidth - newWidth) / 2) * Math.sin(angle),
+          },
+        );
+      }
+
       return {
         x: x + ((prevWidth - newWidth) / 2) * (Math.cos(angle) + 1),
         y:

packages/excalidraw/element/sortElements.ts

@@ -116,8 +116,5 @@ const normalizeBoundElementsOrder = (
 export const normalizeElementOrder = (
   elements: readonly ExcalidrawElement[],
 ) => {
-  // console.time();
+  return normalizeBoundElementsOrder(normalizeGroupElementOrder(elements));
-  const ret = normalizeBoundElementsOrder(normalizeGroupElementOrder(elements));
-  // console.timeEnd();
-  return ret;
 };

packages/excalidraw/element/textElement.test.ts

@@ -6,9 +6,8 @@ import {
   getContainerCoords,
   getBoundTextMaxWidth,
   getBoundTextMaxHeight,
-  detectLineHeight,
-  getLineHeightInPx,
 } from "./textElement";
+import { detectLineHeight, getLineHeightInPx } from "./textMeasurements";
 import type { ExcalidrawTextElementWithContainer } from "./types";
 
 describe("Test measureText", () => {

packages/excalidraw/element/textElement.ts

@@ -1,4 +1,4 @@
-import { getFontString, arrayToMap, isTestEnv, normalizeEOL } from "../utils";
+import { getFontString, arrayToMap } from "../utils";
 import type {
   ElementsMap,
   ExcalidrawElement,
@@ -6,7 +6,6 @@ import type {
   ExcalidrawTextContainer,
   ExcalidrawTextElement,
   ExcalidrawTextElementWithContainer,
-  FontString,
   NonDeletedExcalidrawElement,
 } from "./types";
 import { mutateElement } from "./mutateElement";
@@ -14,7 +13,6 @@ import {
   ARROW_LABEL_FONT_SIZE_TO_MIN_WIDTH_RATIO,
   ARROW_LABEL_WIDTH_FRACTION,
   BOUND_TEXT_PADDING,
-  DEFAULT_FONT_FAMILY,
   DEFAULT_FONT_SIZE,
   TEXT_ALIGN,
   VERTICAL_ALIGN,
@@ -30,18 +28,7 @@ import {
   updateOriginalContainerCache,
 } from "./containerCache";
 import type { ExtractSetType } from "../utility-types";
-
+import { measureText } from "./textMeasurements";
-export const normalizeText = (text: string) => {
-  return (
-    normalizeEOL(text)
-      // replace tabs with spaces so they render and measure correctly
-      .replace(/\t/g, "        ")
-  );
-};
-
-const splitIntoLines = (text: string) => {
-  return normalizeText(text).split("\n");
-};
 
 export const redrawTextBoundingBox = (
   textElement: ExcalidrawTextElement,
@@ -281,201 +268,6 @@ export const computeBoundTextPosition = (
   return { x, y };
 };
 
-export const measureText = (
-  text: string,
-  font: FontString,
-  lineHeight: ExcalidrawTextElement["lineHeight"],
-  forceAdvanceWidth?: true,
-) => {
-  const _text = text
-    .split("\n")
-    // replace empty lines with single space because leading/trailing empty
-    // lines would be stripped from computation
-    .map((x) => x || " ")
-    .join("\n");
-  const fontSize = parseFloat(font);
-  const height = getTextHeight(_text, fontSize, lineHeight);
-  const width = getTextWidth(_text, font, forceAdvanceWidth);
-  return { width, height };
-};
-
-/**
- * To get unitless line-height (if unknown) we can calculate it by dividing
- * height-per-line by fontSize.
- */
-export const detectLineHeight = (textElement: ExcalidrawTextElement) => {
-  const lineCount = splitIntoLines(textElement.text).length;
-  return (textElement.height /
-    lineCount /
-    textElement.fontSize) as ExcalidrawTextElement["lineHeight"];
-};
-
-/**
- * We calculate the line height from the font size and the unitless line height,
- * aligning with the W3C spec.
- */
-export const getLineHeightInPx = (
-  fontSize: ExcalidrawTextElement["fontSize"],
-  lineHeight: ExcalidrawTextElement["lineHeight"],
-) => {
-  return fontSize * lineHeight;
-};
-
-// FIXME rename to getApproxMinContainerHeight
-export const getApproxMinLineHeight = (
-  fontSize: ExcalidrawTextElement["fontSize"],
-  lineHeight: ExcalidrawTextElement["lineHeight"],
-) => {
-  return getLineHeightInPx(fontSize, lineHeight) + BOUND_TEXT_PADDING * 2;
-};
-
-let canvas: HTMLCanvasElement | undefined;
-
-/**
- * @param forceAdvanceWidth use to force retrieve the "advance width" ~ `metrics.width`, instead of the actual boundind box width.
- *
- * > The advance width is the distance between the glyph's initial pen position and the next glyph's initial pen position.
- *
- * We need to use the advance width as that's the closest thing to the browser wrapping algo, hence using it for:
- * - text wrapping
- * - wysiwyg editor (+padding)
- *
- * Everything else should be based on the actual bounding box width.
- *
- * `Math.ceil` of the final width adds additional buffer which stabilizes slight wrapping incosistencies.
- */
-export const getLineWidth = (
-  text: string,
-  font: FontString,
-  forceAdvanceWidth?: true,
-) => {
-  if (!canvas) {
-    canvas = document.createElement("canvas");
-  }
-  const canvas2dContext = canvas.getContext("2d")!;
-  canvas2dContext.font = font;
-  const metrics = canvas2dContext.measureText(text);
-
-  const advanceWidth = metrics.width;
-
-  // retrieve the actual bounding box width if these metrics are available (as of now > 95% coverage)
-  if (
-    !forceAdvanceWidth &&
-    window.TextMetrics &&
-    "actualBoundingBoxLeft" in window.TextMetrics.prototype &&
-    "actualBoundingBoxRight" in window.TextMetrics.prototype
-  ) {
-    // could be negative, therefore getting the absolute value
-    const actualWidth =
-      Math.abs(metrics.actualBoundingBoxLeft) +
-      Math.abs(metrics.actualBoundingBoxRight);
-
-    // fallback to advance width if the actual width is zero, i.e. on text editing start
-    // or when actual width does not respect whitespace chars, i.e. spaces
-    // otherwise actual width should always be bigger
-    return Math.max(actualWidth, advanceWidth);
-  }
-
-  // since in test env the canvas measureText algo
-  // doesn't measure text and instead just returns number of
-  // characters hence we assume that each letteris 10px
-  if (isTestEnv()) {
-    return advanceWidth * 10;
-  }
-
-  return advanceWidth;
-};
-
-export const getTextWidth = (
-  text: string,
-  font: FontString,
-  forceAdvanceWidth?: true,
-) => {
-  const lines = splitIntoLines(text);
-  let width = 0;
-  lines.forEach((line) => {
-    width = Math.max(width, getLineWidth(line, font, forceAdvanceWidth));
-  });
-
-  return width;
-};
-
-export const getTextHeight = (
-  text: string,
-  fontSize: number,
-  lineHeight: ExcalidrawTextElement["lineHeight"],
-) => {
-  const lineCount = splitIntoLines(text).length;
-  return getLineHeightInPx(fontSize, lineHeight) * lineCount;
-};
-
-export const charWidth = (() => {
-  const cachedCharWidth: { [key: FontString]: Array<number> } = {};
-
-  const calculate = (char: string, font: FontString) => {
-    const unicode = char.charCodeAt(0);
-    if (!cachedCharWidth[font]) {
-      cachedCharWidth[font] = [];
-    }
-    if (!cachedCharWidth[font][unicode]) {
-      const width = getLineWidth(char, font, true);
-      cachedCharWidth[font][unicode] = width;
-    }
-
-    return cachedCharWidth[font][unicode];
-  };
-
-  const getCache = (font: FontString) => {
-    return cachedCharWidth[font];
-  };
-
-  const clearCache = (font: FontString) => {
-    cachedCharWidth[font] = [];
-  };
-
-  return {
-    calculate,
-    getCache,
-    clearCache,
-  };
-})();
-
-const DUMMY_TEXT = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789".toLocaleUpperCase();
-
-// FIXME rename to getApproxMinContainerWidth
-export const getApproxMinLineWidth = (
-  font: FontString,
-  lineHeight: ExcalidrawTextElement["lineHeight"],
-) => {
-  const maxCharWidth = getMaxCharWidth(font);
-  if (maxCharWidth === 0) {
-    return (
-      measureText(DUMMY_TEXT.split("").join("\n"), font, lineHeight).width +
-      BOUND_TEXT_PADDING * 2
-    );
-  }
-  return maxCharWidth + BOUND_TEXT_PADDING * 2;
-};
-
-export const getMinCharWidth = (font: FontString) => {
-  const cache = charWidth.getCache(font);
-  if (!cache) {
-    return 0;
-  }
-  const cacheWithOutEmpty = cache.filter((val) => val !== undefined);
-
-  return Math.min(...cacheWithOutEmpty);
-};
-
-export const getMaxCharWidth = (font: FontString) => {
-  const cache = charWidth.getCache(font);
-  if (!cache) {
-    return 0;
-  }
-  const cacheWithOutEmpty = cache.filter((val) => val !== undefined);
-  return Math.max(...cacheWithOutEmpty);
-};
-
 export const getBoundTextElementId = (container: ExcalidrawElement | null) => {
   return container?.boundElements?.length
     ? container?.boundElements?.find((ele) => ele.type === "text")?.id || null
@@ -712,24 +504,6 @@ export const getBoundTextMaxHeight = (
   return height - BOUND_TEXT_PADDING * 2;
 };
 
-export const isMeasureTextSupported = () => {
-  const width = getTextWidth(
-    DUMMY_TEXT,
-    getFontString({
-      fontSize: DEFAULT_FONT_SIZE,
-      fontFamily: DEFAULT_FONT_FAMILY,
-    }),
-  );
-  return width > 0;
-};
-
-export const getMinTextElementWidth = (
-  font: FontString,
-  lineHeight: ExcalidrawTextElement["lineHeight"],
-) => {
-  return measureText("", font, lineHeight).width + BOUND_TEXT_PADDING * 2;
-};
-
 /** retrieves text from text elements and concatenates to a single string */
 export const getTextFromElements = (
   elements: readonly ExcalidrawElement[],

packages/excalidraw/element/textMeasurements.ts

@@ -0,0 +1,224 @@
+import {
+  BOUND_TEXT_PADDING,
+  DEFAULT_FONT_SIZE,
+  DEFAULT_FONT_FAMILY,
+} from "../constants";
+import { getFontString, isTestEnv, normalizeEOL } from "../utils";
+import type { FontString, ExcalidrawTextElement } from "./types";
+
+export const measureText = (
+  text: string,
+  font: FontString,
+  lineHeight: ExcalidrawTextElement["lineHeight"],
+) => {
+  const _text = text
+    .split("\n")
+    // replace empty lines with single space because leading/trailing empty
+    // lines would be stripped from computation
+    .map((x) => x || " ")
+    .join("\n");
+  const fontSize = parseFloat(font);
+  const height = getTextHeight(_text, fontSize, lineHeight);
+  const width = getTextWidth(_text, font);
+  return { width, height };
+};
+
+const DUMMY_TEXT = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789".toLocaleUpperCase();
+
+// FIXME rename to getApproxMinContainerWidth
+export const getApproxMinLineWidth = (
+  font: FontString,
+  lineHeight: ExcalidrawTextElement["lineHeight"],
+) => {
+  const maxCharWidth = getMaxCharWidth(font);
+  if (maxCharWidth === 0) {
+    return (
+      measureText(DUMMY_TEXT.split("").join("\n"), font, lineHeight).width +
+      BOUND_TEXT_PADDING * 2
+    );
+  }
+  return maxCharWidth + BOUND_TEXT_PADDING * 2;
+};
+
+export const getMinTextElementWidth = (
+  font: FontString,
+  lineHeight: ExcalidrawTextElement["lineHeight"],
+) => {
+  return measureText("", font, lineHeight).width + BOUND_TEXT_PADDING * 2;
+};
+
+export const isMeasureTextSupported = () => {
+  const width = getTextWidth(
+    DUMMY_TEXT,
+    getFontString({
+      fontSize: DEFAULT_FONT_SIZE,
+      fontFamily: DEFAULT_FONT_FAMILY,
+    }),
+  );
+  return width > 0;
+};
+
+export const normalizeText = (text: string) => {
+  return (
+    normalizeEOL(text)
+      // replace tabs with spaces so they render and measure correctly
+      .replace(/\t/g, "        ")
+  );
+};
+
+const splitIntoLines = (text: string) => {
+  return normalizeText(text).split("\n");
+};
+
+/**
+ * To get unitless line-height (if unknown) we can calculate it by dividing
+ * height-per-line by fontSize.
+ */
+export const detectLineHeight = (textElement: ExcalidrawTextElement) => {
+  const lineCount = splitIntoLines(textElement.text).length;
+  return (textElement.height /
+    lineCount /
+    textElement.fontSize) as ExcalidrawTextElement["lineHeight"];
+};
+
+/**
+ * We calculate the line height from the font size and the unitless line height,
+ * aligning with the W3C spec.
+ */
+export const getLineHeightInPx = (
+  fontSize: ExcalidrawTextElement["fontSize"],
+  lineHeight: ExcalidrawTextElement["lineHeight"],
+) => {
+  return fontSize * lineHeight;
+};
+
+// FIXME rename to getApproxMinContainerHeight
+export const getApproxMinLineHeight = (
+  fontSize: ExcalidrawTextElement["fontSize"],
+  lineHeight: ExcalidrawTextElement["lineHeight"],
+) => {
+  return getLineHeightInPx(fontSize, lineHeight) + BOUND_TEXT_PADDING * 2;
+};
+
+let textMetricsProvider: TextMetricsProvider | undefined;
+
+/**
+ * Set a custom text metrics provider.
+ *
+ * Useful for overriding the width calculation algorithm where canvas API is not available / desired.
+ */
+export const setCustomTextMetricsProvider = (provider: TextMetricsProvider) => {
+  textMetricsProvider = provider;
+};
+
+export interface TextMetricsProvider {
+  getLineWidth(text: string, fontString: FontString): number;
+}
+
+class CanvasTextMetricsProvider implements TextMetricsProvider {
+  private canvas: HTMLCanvasElement;
+
+  constructor() {
+    this.canvas = document.createElement("canvas");
+  }
+
+  /**
+   * We need to use the advance width as that's the closest thing to the browser wrapping algo, hence using it for:
+   * - text wrapping
+   * - wysiwyg editor (+padding)
+   *
+   * > The advance width is the distance between the glyph's initial pen position and the next glyph's initial pen position.
+   */
+  public getLineWidth(text: string, fontString: FontString): number {
+    const context = this.canvas.getContext("2d")!;
+    context.font = fontString;
+    const metrics = context.measureText(text);
+    const advanceWidth = metrics.width;
+
+    // since in test env the canvas measureText algo
+    // doesn't measure text and instead just returns number of
+    // characters hence we assume that each letteris 10px
+    if (isTestEnv()) {
+      return advanceWidth * 10;
+    }
+
+    return advanceWidth;
+  }
+}
+
+export const getLineWidth = (text: string, font: FontString) => {
+  if (!textMetricsProvider) {
+    textMetricsProvider = new CanvasTextMetricsProvider();
+  }
+
+  return textMetricsProvider.getLineWidth(text, font);
+};
+
+export const getTextWidth = (text: string, font: FontString) => {
+  const lines = splitIntoLines(text);
+  let width = 0;
+  lines.forEach((line) => {
+    width = Math.max(width, getLineWidth(line, font));
+  });
+
+  return width;
+};
+
+export const getTextHeight = (
+  text: string,
+  fontSize: number,
+  lineHeight: ExcalidrawTextElement["lineHeight"],
+) => {
+  const lineCount = splitIntoLines(text).length;
+  return getLineHeightInPx(fontSize, lineHeight) * lineCount;
+};
+
+export const charWidth = (() => {
+  const cachedCharWidth: { [key: FontString]: Array<number> } = {};
+
+  const calculate = (char: string, font: FontString) => {
+    const unicode = char.charCodeAt(0);
+    if (!cachedCharWidth[font]) {
+      cachedCharWidth[font] = [];
+    }
+    if (!cachedCharWidth[font][unicode]) {
+      const width = getLineWidth(char, font);
+      cachedCharWidth[font][unicode] = width;
+    }
+
+    return cachedCharWidth[font][unicode];
+  };
+
+  const getCache = (font: FontString) => {
+    return cachedCharWidth[font];
+  };
+
+  const clearCache = (font: FontString) => {
+    cachedCharWidth[font] = [];
+  };
+
+  return {
+    calculate,
+    getCache,
+    clearCache,
+  };
+})();
+
+export const getMinCharWidth = (font: FontString) => {
+  const cache = charWidth.getCache(font);
+  if (!cache) {
+    return 0;
+  }
+  const cacheWithOutEmpty = cache.filter((val) => val !== undefined);
+
+  return Math.min(...cacheWithOutEmpty);
+};
+
+export const getMaxCharWidth = (font: FontString) => {
+  const cache = charWidth.getCache(font);
+  if (!cache) {
+    return 0;
+  }
+  const cacheWithOutEmpty = cache.filter((val) => val !== undefined);
+  return Math.max(...cacheWithOutEmpty);
+};

packages/excalidraw/element/textWrapping.ts

@@ -1,5 +1,5 @@
 import { ENV } from "../constants";
-import { charWidth, getLineWidth } from "./textElement";
+import { charWidth, getLineWidth } from "./textMeasurements";
 import type { FontString } from "./types";
 
 let cachedCjkRegex: RegExp | undefined;
@@ -385,7 +385,7 @@ export const wrapText = (
   const originalLines = text.split("\n");
 
   for (const originalLine of originalLines) {
-    const currentLineWidth = getLineWidth(originalLine, font, true);
+    const currentLineWidth = getLineWidth(originalLine, font);
 
     if (currentLineWidth <= maxWidth) {
       lines.push(originalLine);
@@ -423,7 +423,7 @@ const wrapLine = (
     // cache single codepoint whitespace, CJK or emoji width calc. as kerning should not apply here
     const testLineWidth = isSingleCharacter(token)
       ? currentLineWidth + charWidth.calculate(token, font)
-      : getLineWidth(testLine, font, true);
+      : getLineWidth(testLine, font);
 
     // build up the current line, skipping length check for possibly trailing whitespaces
     if (/\s/.test(token) || testLineWidth <= maxWidth) {
@@ -443,7 +443,7 @@ const wrapLine = (
 
       // trailing line of the wrapped word might still be joined with next token/s
       currentLine = trailingLine;
-      currentLineWidth = getLineWidth(trailingLine, font, true);
+      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!
@@ -514,7 +514,7 @@ const wrapWord = (
  * Similarly to browsers, does not trim all trailing whitespaces, but only those exceeding the `maxWidth`.
  */
 const trimLine = (line: string, font: FontString, maxWidth: number) => {
-  const shouldTrimWhitespaces = getLineWidth(line, font, true) > maxWidth;
+  const shouldTrimWhitespaces = getLineWidth(line, font) > maxWidth;
 
   if (!shouldTrimWhitespaces) {
     return line;
@@ -527,7 +527,7 @@ const trimLine = (line: string, font: FontString, maxWidth: number) => {
     "",
   ];
 
-  let trimmedLineWidth = getLineWidth(trimmedLine, font, true);
+  let trimmedLineWidth = getLineWidth(trimmedLine, font);
 
   for (const whitespace of Array.from(whitespaces)) {
     const _charWidth = charWidth.calculate(whitespace, font);

packages/excalidraw/element/textWysiwyg.tsx

@@ -24,8 +24,6 @@ import {
   getBoundTextElementId,
   getContainerElement,
   getTextElementAngle,
-  getTextWidth,
-  normalizeText,
   redrawTextBoundingBox,
   getBoundTextMaxHeight,
   getBoundTextMaxWidth,
@@ -50,6 +48,8 @@ import {
   originalContainerCache,
   updateOriginalContainerCache,
 } from "./containerCache";
+import { getTextWidth } from "./textMeasurements";
+import { normalizeText } from "./textMeasurements";
 
 const getTransform = (
   width: number,
@@ -350,7 +350,7 @@ export const textWysiwyg = ({
           font,
           getBoundTextMaxWidth(container, boundTextElement),
         );
-        const width = getTextWidth(wrappedText, font, true);
+        const width = getTextWidth(wrappedText, font);
         editable.style.width = `${width}px`;
       }
     };

packages/excalidraw/element/types.ts

@@ -337,7 +337,7 @@ export type ExcalidrawElbowArrowElement = Merge<
     elbowed: true;
     startBinding: FixedPointBinding | null;
     endBinding: FixedPointBinding | null;
-    fixedSegments: FixedSegment[] | 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

packages/excalidraw/fonts/Fonts.ts

@@ -3,11 +3,10 @@ import {
   FONT_FAMILY_FALLBACKS,
   CJK_HAND_DRAWN_FALLBACK_FONT,
   WINDOWS_EMOJI_FALLBACK_FONT,
-  isSafari,
   getFontFamilyFallbacks,
 } from "../constants";
 import { isTextElement } from "../element";
-import { charWidth, getContainerElement } from "../element/textElement";
+import { getContainerElement } from "../element/textElement";
 import { containsCJK } from "../element/textWrapping";
 import { ShapeCache } from "../scene/ShapeCache";
 import { getFontString, PromisePool, promiseTry } from "../utils";
@@ -32,6 +31,7 @@ import type {
 } from "../element/types";
 import type Scene from "../scene/Scene";
 import type { ValueOf } from "../utility-types";
+import { charWidth } from "../element/textMeasurements";
 
 export class Fonts {
   // it's ok to track fonts across multiple instances only once, so let's use
@@ -137,50 +137,28 @@ export class Fonts {
 
   /**
    * Load font faces for a given scene and trigger scene update.
-   *
-   * FontFaceSet loadingdone event we listen on may not always
-   * fire (looking at you Safari), so on init we manually load all
-   * fonts and rerender scene text elements once done.
-   *
-   * For Safari we make sure to check against each loaded font face
-   * with the unique characters per family in the scene,
-   * otherwise fonts might remain unloaded.
    */
   public loadSceneFonts = async (): Promise<FontFace[]> => {
     const sceneFamilies = this.getSceneFamilies();
-    const charsPerFamily = isSafari
+    const charsPerFamily = Fonts.getCharsPerFamily(
-      ? Fonts.getCharsPerFamily(this.scene.getNonDeletedElements())
+      this.scene.getNonDeletedElements(),
-      : undefined;
+    );
 
     return Fonts.loadFontFaces(sceneFamilies, charsPerFamily);
   };
 
   /**
    * Load font faces for passed elements - use when the scene is unavailable (i.e. export).
-   *
-   * For Safari we make sure to check against each loaded font face,
-   * with the unique characters per family in the elements
-   * otherwise fonts might remain unloaded.
    */
   public static loadElementsFonts = async (
     elements: readonly ExcalidrawElement[],
   ): Promise<FontFace[]> => {
     const fontFamilies = Fonts.getUniqueFamilies(elements);
-    const charsPerFamily = isSafari
+    const charsPerFamily = Fonts.getCharsPerFamily(elements);
-      ? Fonts.getCharsPerFamily(elements)
-      : undefined;
 
     return Fonts.loadFontFaces(fontFamilies, charsPerFamily);
   };
 
-  /**
-   * Load all registered font faces.
-   */
-  public static loadAllFonts = async (): Promise<FontFace[]> => {
-    const allFamilies = Fonts.getAllFamilies();
-    return Fonts.loadFontFaces(allFamilies);
-  };
-
   /**
    * Generate CSS @font-face declarations for the given elements.
    */
@@ -223,7 +201,7 @@ export class Fonts {
 
   private static async loadFontFaces(
     fontFamilies: Array<ExcalidrawTextElement["fontFamily"]>,
-    charsPerFamily?: Record<number, Set<string>>,
+    charsPerFamily: Record<number, Set<string>>,
   ) {
     // add all registered font faces into the `document.fonts` (if not added already)
     for (const { fontFaces, metadata } of Fonts.registered.values()) {
@@ -248,7 +226,7 @@ export class Fonts {
 
   private static *fontFacesLoader(
     fontFamilies: Array<ExcalidrawTextElement["fontFamily"]>,
-    charsPerFamily?: Record<number, Set<string>>,
+    charsPerFamily: Record<number, Set<string>>,
   ): Generator<Promise<void | readonly [number, FontFace[]]>> {
     for (const [index, fontFamily] of fontFamilies.entries()) {
       const font = getFontString({
@@ -256,12 +234,9 @@ export class Fonts {
         fontSize: 16,
       });
 
-      // WARN: without "text" param it does not have to mean that all font faces are loaded, instead it could be just one!
+      // WARN: without "text" param it does not have to mean that all font faces are loaded as it could be just one irrelevant font face!
-      // for Safari on init, we rather check with the "text" param, even though it's less efficient, as otherwise fonts might remain unloaded
+      // instead, we are always checking chars used in the family, so that no required font faces remain unloaded
-      const text =
+      const text = Fonts.getCharacters(charsPerFamily, fontFamily);
-        isSafari && charsPerFamily
-          ? Fonts.getCharacters(charsPerFamily, fontFamily)
-          : "";
 
       if (!window.document.fonts.check(font, text)) {
         yield promiseTry(async () => {

packages/excalidraw/frame.test.tsx

@@ -1,9 +1,8 @@
-import React from "react";
 import type { ExcalidrawElement } from "./element/types";
 import { convertToExcalidrawElements, Excalidraw } from "./index";
 import { API } from "./tests/helpers/api";
 import { Keyboard, Pointer } from "./tests/helpers/ui";
-import { render } from "./tests/test-utils";
+import { getCloneByOrigId, render } from "./tests/test-utils";
 
 const { h } = window;
 const mouse = new Pointer("mouse");
@@ -413,10 +412,10 @@ describe("adding elements to frames", () => {
 
       dragElementIntoFrame(frame, rect2);
 
-      const rect2_copy = { ...rect2, id: `${rect2.id}_copy` };
-
       selectElementAndDuplicate(rect2);
 
+      const rect2_copy = getCloneByOrigId(rect2.id);
+
       expect(rect2_copy.frameId).toBe(frame.id);
       expect(rect2.frameId).toBe(frame.id);
       expectEqualIds([rect2_copy, rect2, frame]);
@@ -427,11 +426,11 @@ describe("adding elements to frames", () => {
 
       dragElementIntoFrame(frame, rect2);
 
-      const rect2_copy = { ...rect2, id: `${rect2.id}_copy` };
-
       // move the rect2 outside the frame
       selectElementAndDuplicate(rect2, [-1000, -1000]);
 
+      const rect2_copy = getCloneByOrigId(rect2.id);
+
       expect(rect2_copy.frameId).toBe(frame.id);
       expect(rect2.frameId).toBe(null);
       expectEqualIds([rect2_copy, frame, rect2]);

packages/excalidraw/index.tsx

@@ -46,6 +46,7 @@ const ExcalidrawBase = (props: ExcalidrawProps) => {
     onPointerDown,
     onPointerUp,
     onScrollChange,
+    onDuplicate,
     children,
     validateEmbeddable,
     renderEmbeddable,
@@ -136,6 +137,7 @@ const ExcalidrawBase = (props: ExcalidrawProps) => {
           onPointerDown={onPointerDown}
           onPointerUp={onPointerUp}
           onScrollChange={onScrollChange}
+          onDuplicate={onDuplicate}
           validateEmbeddable={validateEmbeddable}
           renderEmbeddable={renderEmbeddable}
           aiEnabled={aiEnabled !== false}
@@ -293,3 +295,5 @@ export {
 export { DiagramToCodePlugin } from "./components/DiagramToCodePlugin/DiagramToCodePlugin";
 export { getDataURL } from "./data/blob";
 export { isElementLink } from "./element/elementLink";
+
+export { setCustomTextMetricsProvider } from "./element/textMeasurements";

packages/excalidraw/package.json

@@ -103,6 +103,7 @@
     "@types/pako": "1.0.3",
     "@types/pica": "5.1.3",
     "@types/resize-observer-browser": "0.1.7",
+    "ansicolor": "2.0.3",
     "autoprefixer": "10.4.7",
     "babel-loader": "8.2.5",
     "babel-plugin-transform-class-properties": "6.24.1",

packages/excalidraw/renderer/renderElement.ts

@@ -52,7 +52,6 @@ import {
   getBoundTextElement,
   getContainerCoords,
   getContainerElement,
-  getLineHeightInPx,
   getBoundTextMaxHeight,
   getBoundTextMaxWidth,
 } from "../element/textElement";
@@ -64,6 +63,7 @@ import { getVerticalOffset } from "../fonts";
 import { isRightAngleRads } from "../../math";
 import { getCornerRadius } from "../shapes";
 import { getUncroppedImageElement } from "../element/cropElement";
+import { getLineHeightInPx } from "../element/textMeasurements";
 
 // 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

packages/excalidraw/renderer/staticSvgScene.ts

@@ -16,7 +16,6 @@ import { LinearElementEditor } from "../element/linearElementEditor";
 import {
   getBoundTextElement,
   getContainerElement,
-  getLineHeightInPx,
 } from "../element/textElement";
 import {
   isArrowElement,
@@ -38,6 +37,7 @@ import { getFreeDrawSvgPath, IMAGE_INVERT_FILTER } from "./renderElement";
 import { getVerticalOffset } from "../fonts";
 import { getCornerRadius, isPathALoop } from "../shapes";
 import { getUncroppedWidthAndHeight } from "../element/cropElement";
+import { getLineHeightInPx } from "../element/textMeasurements";
 
 const roughSVGDrawWithPrecision = (
   rsvg: RoughSVG,

packages/excalidraw/scene/comparisons.ts

@@ -1,8 +1,3 @@
-import { isIframeElement } from "../element/typeChecks";
-import type {
-  ExcalidrawIframeElement,
-  NonDeletedExcalidrawElement,
-} from "../element/types";
 import type { ElementOrToolType } from "../types";
 
 export const hasBackground = (type: ElementOrToolType) =>
@@ -47,48 +42,3 @@ export const canChangeRoundness = (type: ElementOrToolType) =>
 export const toolIsArrow = (type: ElementOrToolType) => type === "arrow";
 
 export const canHaveArrowheads = (type: ElementOrToolType) => type === "arrow";
-
-export const getElementAtPosition = (
-  elements: readonly NonDeletedExcalidrawElement[],
-  isAtPositionFn: (element: NonDeletedExcalidrawElement) => boolean,
-) => {
-  let hitElement = null;
-  // 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];
-    if (element.isDeleted) {
-      continue;
-    }
-    if (isAtPositionFn(element)) {
-      hitElement = element;
-      break;
-    }
-  }
-
-  return hitElement;
-};
-
-export const getElementsAtPosition = (
-  elements: readonly NonDeletedExcalidrawElement[],
-  isAtPositionFn: (element: NonDeletedExcalidrawElement) => boolean,
-) => {
-  const iframeLikes: ExcalidrawIframeElement[] = [];
-  // The parameter elements comes ordered from lower z-index to higher.
-  // We want to preserve that order on the returned array.
-  // Exception being embeddables which should be on top of everything else in
-  // terms of hit testing.
-  const elsAtPos = elements.filter((element) => {
-    const hit = !element.isDeleted && isAtPositionFn(element);
-    if (hit) {
-      if (isIframeElement(element)) {
-        iframeLikes.push(element);
-        return false;
-      }
-      return true;
-    }
-    return false;
-  });
-  return elsAtPos.concat(iframeLikes);
-};

packages/excalidraw/scene/index.ts

@@ -12,8 +12,6 @@ export {
   hasStrokeStyle,
   canHaveArrowheads,
   canChangeRoundness,
-  getElementAtPosition,
-  getElementsAtPosition,
 } from "./comparisons";
 export {
   getNormalizedZoom,

packages/excalidraw/tests/__snapshots__/contextmenu.test.tsx.snap

@@ -2517,7 +2517,7 @@ exports[`contextMenu element > selecting 'Duplicate' in context menu duplicates
   "scrolledOutside": false,
   "searchMatches": [],
   "selectedElementIds": {
-    "id0_copy": true,
+    "id1": true,
   },
   "selectedElementsAreBeingDragged": false,
   "selectedGroupIds": {},
@@ -2590,7 +2590,7 @@ exports[`contextMenu element > selecting 'Duplicate' in context menu duplicates
   "frameId": null,
   "groupIds": [],
   "height": 20,
-  "id": "id0_copy",
+  "id": "id1",
   "index": "a1",
   "isDeleted": false,
   "link": null,
@@ -2680,7 +2680,7 @@ History {
         "delta": Delta {
           "deleted": {
             "selectedElementIds": {
-              "id0_copy": true,
+              "id1": true,
             },
           },
           "inserted": {
@@ -2693,7 +2693,7 @@ History {
       "elementsChange": ElementsChange {
         "added": Map {},
         "removed": Map {
-          "id0_copy" => Delta {
+          "id1" => Delta {
             "deleted": {
               "angle": 0,
               "backgroundColor": "transparent",

packages/excalidraw/tests/__snapshots__/move.test.tsx.snap

@@ -10,7 +10,7 @@ exports[`duplicate element on move when ALT is clicked > rectangle 5`] = `
   "frameId": null,
   "groupIds": [],
   "height": 50,
-  "id": "id0_copy",
+  "id": "id2",
   "index": "a0",
   "isDeleted": false,
   "link": null,

packages/excalidraw/tests/__snapshots__/regressionTests.test.tsx.snap

@@ -2129,7 +2129,7 @@ History {
       "elementsChange": ElementsChange {
         "added": Map {},
         "removed": Map {
-          "id0_copy" => Delta {
+          "id2" => Delta {
             "deleted": {
               "angle": 0,
               "backgroundColor": "transparent",
@@ -10619,7 +10619,7 @@ History {
       "elementsChange": ElementsChange {
         "added": Map {},
         "removed": Map {
-          "id0_copy" => Delta {
+          "id6" => Delta {
             "deleted": {
               "angle": 0,
               "backgroundColor": "transparent",
@@ -10628,7 +10628,7 @@ History {
               "fillStyle": "solid",
               "frameId": null,
               "groupIds": [
-                "id4_copy",
+                "id7",
               ],
               "height": 10,
               "index": "a0",
@@ -10652,7 +10652,7 @@ History {
               "isDeleted": true,
             },
           },
-          "id1_copy" => Delta {
+          "id8" => Delta {
             "deleted": {
               "angle": 0,
               "backgroundColor": "transparent",
@@ -10661,7 +10661,7 @@ History {
               "fillStyle": "solid",
               "frameId": null,
               "groupIds": [
-                "id4_copy",
+                "id7",
               ],
               "height": 10,
               "index": "a1",
@@ -10685,7 +10685,7 @@ History {
               "isDeleted": true,
             },
           },
-          "id2_copy" => Delta {
+          "id9" => Delta {
             "deleted": {
               "angle": 0,
               "backgroundColor": "transparent",
@@ -10694,7 +10694,7 @@ History {
               "fillStyle": "solid",
               "frameId": null,
               "groupIds": [
-                "id4_copy",
+                "id7",
               ],
               "height": 10,
               "index": "a2",

packages/excalidraw/tests/actionStyles.test.tsx

@@ -50,7 +50,7 @@ describe("actionStyles", () => {
     // Roughness
     fireEvent.click(screen.getByTitle("Cartoonist"));
     // Opacity
-    fireEvent.change(screen.getByLabelText("Opacity"), {
+    fireEvent.change(screen.getByTestId("opacity"), {
       target: { value: "60" },
     });
 

packages/excalidraw/tests/clipboard.test.tsx

@@ -5,7 +5,7 @@ import { render, waitFor, GlobalTestState } from "./test-utils";
 import { Pointer, Keyboard } from "./helpers/ui";
 import { Excalidraw } from "../index";
 import { KEYS } from "../keys";
-import { getLineHeightInPx } from "../element/textElement";
+import { getLineHeightInPx } from "../element/textMeasurements";
 import { getElementBounds } from "../element";
 import type { NormalizedZoomValue } from "../types";
 import { API } from "./helpers/api";

packages/excalidraw/tests/contextmenu.test.tsx

@@ -338,7 +338,7 @@ describe("contextMenu element", () => {
     // Roughness
     fireEvent.click(screen.getByTitle("Cartoonist"));
     // Opacity
-    fireEvent.change(screen.getByLabelText("Opacity"), {
+    fireEvent.change(screen.getByTestId("opacity"), {
       target: { value: "60" },
     });
 

packages/excalidraw/tests/helpers/api.ts

@@ -40,6 +40,7 @@ import { createTestHook } from "../../components/App";
 import type { Action } from "../../actions/types";
 import { mutateElement } from "../../element/mutateElement";
 import { pointFrom, type LocalPoint, type Radians } from "../../../math";
+import { selectGroupsForSelectedElements } from "../../groups";
 
 const readFile = util.promisify(fs.readFile);
 // so that window.h is available when App.tsx is not imported as well.
@@ -68,13 +69,21 @@ export class API {
     });
   };
 
-  static setSelectedElements = (elements: ExcalidrawElement[]) => {
+  static setSelectedElements = (elements: ExcalidrawElement[], editingGroupId?: string | null) => {
     act(() => {
       h.setState({
-        selectedElementIds: elements.reduce((acc, element) => {
+        ...selectGroupsForSelectedElements(
-          acc[element.id] = true;
+        {
-          return acc;
+          editingGroupId: editingGroupId ?? null,
-        }, {} as Record<ExcalidrawElement["id"], true>),
+          selectedElementIds: elements.reduce((acc, element) => {
+            acc[element.id] = true;
+            return acc;
+          }, {} as Record<ExcalidrawElement["id"], true>),
+        },
+        elements,
+        h.state,
+        h.app,
+        )
       });
     });
   };
@@ -158,7 +167,7 @@ export class API {
     isDeleted?: boolean;
     frameId?: ExcalidrawElement["id"] | null;
     index?: ExcalidrawElement["index"];
-    groupIds?: string[];
+    groupIds?: ExcalidrawElement["groupIds"];
     // generic element props
     strokeColor?: ExcalidrawGenericElement["strokeColor"];
     backgroundColor?: ExcalidrawGenericElement["backgroundColor"];
@@ -369,6 +378,84 @@ export class API {
     return element as any;
   };
 
+  static createTextContainer = (opts?: {
+    frameId?: ExcalidrawElement["id"];
+    groupIds?: ExcalidrawElement["groupIds"];
+    label?: {
+      text?: string;
+      frameId?: ExcalidrawElement["id"] | null;
+      groupIds?: ExcalidrawElement["groupIds"];
+    };
+  }) => {
+    const rectangle = API.createElement({
+      type: "rectangle",
+      frameId: opts?.frameId || null,
+      groupIds: opts?.groupIds,
+    });
+
+    const text = API.createElement({
+      type: "text",
+      text: opts?.label?.text || "sample-text",
+      width: 50,
+      height: 20,
+      fontSize: 16,
+      containerId: rectangle.id,
+      frameId:
+        opts?.label?.frameId === undefined
+          ? opts?.frameId ?? null
+          : opts?.label?.frameId ?? null,
+      groupIds: opts?.label?.groupIds === undefined
+      ? opts?.groupIds
+      : opts?.label?.groupIds ,
+
+    });
+
+    mutateElement(
+      rectangle,
+      {
+        boundElements: [{ type: "text", id: text.id }],
+      },
+      false,
+    );
+
+    return [rectangle, text];
+  };
+
+  static createLabeledArrow = (opts?: {
+    frameId?: ExcalidrawElement["id"];
+    label?: {
+      text?: string;
+      frameId?: ExcalidrawElement["id"] | null;
+    };
+  }) => {
+    const arrow = API.createElement({
+      type: "arrow",
+      frameId: opts?.frameId || null,
+    });
+
+    const text = API.createElement({
+      type: "text",
+      id: "text2",
+      width: 50,
+      height: 20,
+      containerId: arrow.id,
+      frameId:
+        opts?.label?.frameId === undefined
+          ? opts?.frameId ?? null
+          : opts?.label?.frameId ?? null,
+    });
+
+    mutateElement(
+      arrow,
+      {
+        boundElements: [{ type: "text", id: text.id }],
+      },
+      false,
+    );
+
+    return [arrow, text];
+  };
+
   static readFile = async <T extends "utf8" | null>(
     filepath: string,
     encoding?: T,

packages/excalidraw/tests/history.test.tsx

@@ -7,6 +7,7 @@ import {
   assertSelectedElements,
   render,
   togglePopover,
+  getCloneByOrigId,
 } from "./test-utils";
 import { Excalidraw } from "../index";
 import { Keyboard, Pointer, UI } from "./helpers/ui";
@@ -15,7 +16,7 @@ import { getDefaultAppState } from "../appState";
 import { fireEvent, queryByTestId, waitFor } from "@testing-library/react";
 import { createUndoAction, createRedoAction } from "../actions/actionHistory";
 import { actionToggleViewMode } from "../actions/actionToggleViewMode";
-import { EXPORT_DATA_TYPES, MIME_TYPES } from "../constants";
+import { EXPORT_DATA_TYPES, MIME_TYPES, ORIG_ID } from "../constants";
 import type { AppState } from "../types";
 import { arrayToMap } from "../utils";
 import {
@@ -1138,8 +1139,8 @@ describe("history", () => {
       expect(h.elements).toEqual([
         expect.objectContaining({ id: rect1.id, isDeleted: false }),
         expect.objectContaining({ id: rect2.id, isDeleted: false }),
-        expect.objectContaining({ id: `${rect1.id}_copy`, isDeleted: true }),
+        expect.objectContaining({ [ORIG_ID]: rect1.id, isDeleted: true }),
-        expect.objectContaining({ id: `${rect2.id}_copy`, isDeleted: true }),
+        expect.objectContaining({ [ORIG_ID]: rect2.id, isDeleted: true }),
       ]);
       expect(h.state.editingGroupId).toBeNull();
       expect(h.state.selectedGroupIds).toEqual({ A: true });
@@ -1151,8 +1152,8 @@ describe("history", () => {
       expect(h.elements).toEqual([
         expect.objectContaining({ id: rect1.id, isDeleted: false }),
         expect.objectContaining({ id: rect2.id, isDeleted: false }),
-        expect.objectContaining({ id: `${rect1.id}_copy`, isDeleted: false }),
+        expect.objectContaining({ [ORIG_ID]: rect1.id, isDeleted: false }),
-        expect.objectContaining({ id: `${rect2.id}_copy`, isDeleted: false }),
+        expect.objectContaining({ [ORIG_ID]: rect2.id, isDeleted: false }),
       ]);
       expect(h.state.editingGroupId).toBeNull();
       expect(h.state.selectedGroupIds).not.toEqual(
@@ -1171,14 +1172,14 @@ describe("history", () => {
         expect.arrayContaining([
           expect.objectContaining({ id: rect1.id, isDeleted: false }),
           expect.objectContaining({ id: rect2.id, isDeleted: false }),
-          expect.objectContaining({ id: `${rect1.id}_copy`, isDeleted: true }),
+          expect.objectContaining({ [ORIG_ID]: rect1.id, isDeleted: true }),
-          expect.objectContaining({ id: `${rect2.id}_copy`, isDeleted: true }),
+          expect.objectContaining({ [ORIG_ID]: rect2.id, isDeleted: true }),
           expect.objectContaining({
-            id: `${rect1.id}_copy_copy`,
+            [ORIG_ID]: getCloneByOrigId(rect1.id)?.id,
             isDeleted: false,
           }),
           expect.objectContaining({
-            id: `${rect2.id}_copy_copy`,
+            [ORIG_ID]: getCloneByOrigId(rect2.id)?.id,
             isDeleted: false,
           }),
         ]),

packages/excalidraw/tests/library.test.tsx

@@ -1,11 +1,11 @@
 import React from "react";
 import { vi } from "vitest";
-import { fireEvent, render, waitFor } from "./test-utils";
+import { fireEvent, getCloneByOrigId, render, waitFor } from "./test-utils";
 import { act, queryByTestId } from "@testing-library/react";
 
 import { Excalidraw } from "../index";
 import { API } from "./helpers/api";
-import { MIME_TYPES } from "../constants";
+import { MIME_TYPES, ORIG_ID } from "../constants";
 import type { LibraryItem, LibraryItems } from "../types";
 import { UI } from "./helpers/ui";
 import { serializeLibraryAsJSON } from "../data/json";
@@ -76,7 +76,7 @@ describe("library", () => {
       }),
     );
     await waitFor(() => {
-      expect(h.elements).toEqual([expect.objectContaining({ id: "A_copy" })]);
+      expect(h.elements).toEqual([expect.objectContaining({ [ORIG_ID]: "A" })]);
     });
   });
 
@@ -125,23 +125,27 @@ describe("library", () => {
     );
 
     await waitFor(() => {
-      expect(h.elements).toEqual([
+      expect(h.elements).toEqual(
-        expect.objectContaining({
+        expect.arrayContaining([
-          id: "rectangle1_copy",
+          expect.objectContaining({
-          boundElements: expect.arrayContaining([
+            [ORIG_ID]: "rectangle1",
-            { type: "text", id: "text1_copy" },
+            boundElements: expect.arrayContaining([
-            { type: "arrow", id: "arrow1_copy" },
+              { type: "text", id: getCloneByOrigId("text1").id },
-          ]),
+              { type: "arrow", id: getCloneByOrigId("arrow1").id },
-        }),
+            ]),
-        expect.objectContaining({
+          }),
-          id: "text1_copy",
+          expect.objectContaining({
-          containerId: "rectangle1_copy",
+            [ORIG_ID]: "text1",
-        }),
+            containerId: getCloneByOrigId("rectangle1").id,
-        expect.objectContaining({
+          }),
-          id: "arrow1_copy",
+          expect.objectContaining({
-          endBinding: expect.objectContaining({ elementId: "rectangle1_copy" }),
+            [ORIG_ID]: "arrow1",
-        }),
+            endBinding: expect.objectContaining({
-      ]);
+              elementId: getCloneByOrigId("rectangle1").id,
+            }),
+          }),
+        ]),
+      );
     });
   });
 
@@ -170,10 +174,11 @@ describe("library", () => {
     await waitFor(() => {
       expect(h.elements).toEqual([
         expect.objectContaining({
-          id: "elem1_copy",
+          [ORIG_ID]: "elem1",
         }),
         expect.objectContaining({
-          id: expect.not.stringMatching(/^(elem1_copy|elem1)$/),
+          id: expect.not.stringMatching(/^elem1$/),
+          [ORIG_ID]: expect.not.stringMatching(/^\w+$/),
         }),
       ]);
     });
@@ -189,7 +194,7 @@ describe("library", () => {
       }),
     );
     await waitFor(() => {
-      expect(h.elements).toEqual([expect.objectContaining({ id: "A_copy" })]);
+      expect(h.elements).toEqual([expect.objectContaining({ [ORIG_ID]: "A" })]);
     });
     expect(h.state.activeTool.type).toBe("selection");
   });

packages/excalidraw/tests/test-utils.ts

@@ -11,6 +11,10 @@ import { getSelectedElements } from "../scene/selection";
 import type { ExcalidrawElement } from "../element/types";
 import { UI } from "./helpers/ui";
 import { diffStringsUnified } from "jest-diff";
+import ansi from "ansicolor";
+import { ORIG_ID } from "../constants";
+import { arrayToMap } from "../utils";
+import type { AllPossibleKeys } from "../utility-types";
 
 const customQueries = {
   ...queries,
@@ -295,3 +299,150 @@ expect.addSnapshotSerializer({
     );
   },
 });
+
+export const getCloneByOrigId = <T extends boolean = false>(
+  origId: ExcalidrawElement["id"],
+  returnNullIfNotExists: T = false as T,
+): T extends true ? ExcalidrawElement | null : ExcalidrawElement => {
+  const clonedElement = window.h.elements?.find(
+    (el) => (el as any)[ORIG_ID] === origId,
+  );
+  if (clonedElement) {
+    return clonedElement;
+  }
+  if (returnNullIfNotExists !== true) {
+    throw new Error(`cloned element not found for origId: ${origId}`);
+  }
+  return null as T extends true ? ExcalidrawElement | null : ExcalidrawElement;
+};
+
+/**
+ * Assertion helper that strips the actual elements of extra attributes
+ * so that diffs are easier to read in case of failure.
+ *
+ * Asserts element order as well, and selected element ids
+ * (when `selected: true` set for given element).
+ *
+ * If testing cloned elements, you can use { `[ORIG_ID]: origElement.id }
+ * If you need to refer to cloned element properties, you can use
+ * `getCloneByOrigId()`, e.g.: `{ frameId: getCloneByOrigId(origFrame.id)?.id }`
+ */
+export const assertElements = <T extends AllPossibleKeys<ExcalidrawElement>>(
+  actualElements: readonly ExcalidrawElement[],
+  /** array order matters */
+  expectedElements: (Partial<Record<T, any>> & {
+    /** meta, will be stripped for element attribute checks */
+    selected?: true;
+  } & (
+      | {
+          id: ExcalidrawElement["id"];
+        }
+      | { [ORIG_ID]?: string }
+    ))[],
+) => {
+  const h = window.h;
+
+  const expectedElementsWithIds: (typeof expectedElements[number] & {
+    id: ExcalidrawElement["id"];
+  })[] = expectedElements.map((el) => {
+    if ("id" in el) {
+      return el;
+    }
+    const actualElement = actualElements.find(
+      (act) => (act as any)[ORIG_ID] === el[ORIG_ID],
+    );
+    if (actualElement) {
+      return { ...el, id: actualElement.id };
+    }
+    return {
+      ...el,
+      id: "UNKNOWN_ID",
+    };
+  });
+
+  const map_expectedElements = arrayToMap(expectedElementsWithIds);
+
+  const selectedElementIds = expectedElementsWithIds.reduce(
+    (acc: Record<ExcalidrawElement["id"], true>, el) => {
+      if (el.selected) {
+        acc[el.id] = true;
+      }
+      return acc;
+    },
+    {},
+  );
+
+  const mappedActualElements = actualElements.map((el) => {
+    const expectedElement = map_expectedElements.get(el.id);
+    if (expectedElement) {
+      const pickedAttrs: Record<string, any> = {};
+
+      for (const key of Object.keys(expectedElement)) {
+        if (key === "selected") {
+          delete expectedElement.selected;
+          continue;
+        }
+        pickedAttrs[key] = (el as any)[key];
+      }
+
+      if (ORIG_ID in expectedElement) {
+        // @ts-ignore
+        pickedAttrs[ORIG_ID] = (el as any)[ORIG_ID];
+      }
+
+      return pickedAttrs;
+    }
+    return el;
+  });
+
+  try {
+    // testing order separately for even easier diffs
+    expect(actualElements.map((x) => x.id)).toEqual(
+      expectedElementsWithIds.map((x) => x.id),
+    );
+  } catch (err: any) {
+    let errStr = "\n\nmismatched element order\n\n";
+
+    errStr += `actual:   ${ansi.lightGray(
+      `[${err.actual
+        .map((id: string, index: number) => {
+          const act = actualElements[index];
+
+          return `${
+            id === err.expected[index] ? ansi.green(id) : ansi.red(id)
+          } (${act.type.slice(0, 4)}${
+            ORIG_ID in act ? ` ↳ ${(act as any)[ORIG_ID]}` : ""
+          })`;
+        })
+        .join(", ")}]`,
+    )}\n${ansi.lightGray(
+      `expected: [${err.expected
+        .map((exp: string, index: number) => {
+          const expEl = actualElements.find((el) => el.id === exp);
+          const origEl =
+            expEl &&
+            actualElements.find((el) => el.id === (expEl as any)[ORIG_ID]);
+          return expEl
+            ? `${
+                exp === err.actual[index]
+                  ? ansi.green(expEl.id)
+                  : ansi.red(expEl.id)
+              } (${expEl.type.slice(0, 4)}${origEl ? ` ↳ ${origEl.id}` : ""})`
+            : exp;
+        })
+        .join(", ")}]\n`,
+    )}`;
+
+    const error = new Error(errStr);
+    const stack = err.stack.split("\n");
+    stack.splice(1, 1);
+    error.stack = stack.join("\n");
+    throw error;
+  }
+
+  expect(mappedActualElements).toEqual(
+    expect.arrayContaining(expectedElementsWithIds),
+  );
+
+  expect(h.state.selectedElementIds).toEqual(selectedElementIds);
+};

packages/excalidraw/tests/utils.test.ts

@@ -1,4 +1,4 @@
-import { isTransparent, sanitizeHTMLAttribute } from "../utils";
+import { isTransparent } from "../utils";
 
 describe("Test isTransparent", () => {
   it("should return true when color is rgb transparent", () => {
@@ -11,9 +11,3 @@ describe("Test isTransparent", () => {
     expect(isTransparent("#ced4da")).toEqual(false);
   });
 });
-
-describe("sanitizeHTMLAttribute()", () => {
-  it("should escape HTML attribute special characters & not double escape", () => {
-    expect(sanitizeHTMLAttribute(`&"'><`)).toBe("&amp;&quot;&#39;&gt;&lt;");
-  });
-});

packages/excalidraw/tests/zindex.test.tsx

@@ -1,6 +1,6 @@
 import React from "react";
 import ReactDOM from "react-dom";
-import { act, render } from "./test-utils";
+import { act, getCloneByOrigId, render } from "./test-utils";
 import { Excalidraw } from "../index";
 import { reseed } from "../random";
 import {
@@ -916,9 +916,9 @@ describe("z-index manipulation", () => {
     API.executeAction(actionDuplicateSelection);
     expect(h.elements).toMatchObject([
       { id: "A" },
-      { id: "A_copy" },
+      { id: getCloneByOrigId("A").id },
       { id: "B" },
-      { id: "B_copy" },
+      { id: getCloneByOrigId("B").id },
     ]);
 
     populateElements([
@@ -930,12 +930,12 @@ describe("z-index manipulation", () => {
       { id: "A" },
       { id: "B" },
       {
-        id: "A_copy",
+        id: getCloneByOrigId("A").id,
 
         groupIds: [expect.stringMatching(/.{3,}/)],
       },
       {
-        id: "B_copy",
+        id: getCloneByOrigId("B").id,
 
         groupIds: [expect.stringMatching(/.{3,}/)],
       },
@@ -951,12 +951,12 @@ describe("z-index manipulation", () => {
       { id: "A" },
       { id: "B" },
       {
-        id: "A_copy",
+        id: getCloneByOrigId("A").id,
 
         groupIds: [expect.stringMatching(/.{3,}/)],
       },
       {
-        id: "B_copy",
+        id: getCloneByOrigId("B").id,
 
         groupIds: [expect.stringMatching(/.{3,}/)],
       },
@@ -972,10 +972,10 @@ describe("z-index manipulation", () => {
     expect(h.elements.map((element) => element.id)).toEqual([
       "A",
       "B",
-      "A_copy",
+      getCloneByOrigId("A").id,
-      "B_copy",
+      getCloneByOrigId("B").id,
       "C",
-      "C_copy",
+      getCloneByOrigId("C").id,
     ]);
 
     populateElements([
@@ -988,12 +988,12 @@ describe("z-index manipulation", () => {
     expect(h.elements.map((element) => element.id)).toEqual([
       "A",
       "B",
-      "A_copy",
+      getCloneByOrigId("A").id,
-      "B_copy",
+      getCloneByOrigId("B").id,
       "C",
       "D",
-      "C_copy",
+      getCloneByOrigId("C").id,
-      "D_copy",
+      getCloneByOrigId("D").id,
     ]);
 
     populateElements(
@@ -1010,10 +1010,10 @@ describe("z-index manipulation", () => {
     expect(h.elements.map((element) => element.id)).toEqual([
       "A",
       "B",
-      "A_copy",
+      getCloneByOrigId("A").id,
-      "B_copy",
+      getCloneByOrigId("B").id,
       "C",
-      "C_copy",
+      getCloneByOrigId("C").id,
     ]);
 
     populateElements(
@@ -1031,9 +1031,9 @@ describe("z-index manipulation", () => {
       "A",
       "B",
       "C",
-      "A_copy",
+      getCloneByOrigId("A").id,
-      "B_copy",
+      getCloneByOrigId("B").id,
-      "C_copy",
+      getCloneByOrigId("C").id,
     ]);
 
     populateElements(
@@ -1054,15 +1054,15 @@ describe("z-index manipulation", () => {
       "A",
       "B",
       "C",
-      "A_copy",
+      getCloneByOrigId("A").id,
-      "B_copy",
+      getCloneByOrigId("B").id,
-      "C_copy",
+      getCloneByOrigId("C").id,
       "D",
       "E",
       "F",
-      "D_copy",
+      getCloneByOrigId("D").id,
-      "E_copy",
+      getCloneByOrigId("E").id,
-      "F_copy",
+      getCloneByOrigId("F").id,
     ]);
 
     populateElements(
@@ -1076,7 +1076,7 @@ describe("z-index manipulation", () => {
     API.executeAction(actionDuplicateSelection);
     expect(h.elements.map((element) => element.id)).toEqual([
       "A",
-      "A_copy",
+      getCloneByOrigId("A").id,
       "B",
       "C",
     ]);
@@ -1093,7 +1093,7 @@ describe("z-index manipulation", () => {
     expect(h.elements.map((element) => element.id)).toEqual([
       "A",
       "B",
-      "B_copy",
+      getCloneByOrigId("B").id,
       "C",
     ]);
 
@@ -1108,9 +1108,9 @@ describe("z-index manipulation", () => {
     API.executeAction(actionDuplicateSelection);
     expect(h.elements.map((element) => element.id)).toEqual([
       "A",
-      "A_copy",
+      getCloneByOrigId("A").id,
       "B",
-      "B_copy",
+      getCloneByOrigId("B").id,
       "C",
     ]);
   });
@@ -1125,8 +1125,8 @@ describe("z-index manipulation", () => {
     expect(h.elements.map((element) => element.id)).toEqual([
       "A",
       "C",
-      "A_copy",
+      getCloneByOrigId("A").id,
-      "C_copy",
+      getCloneByOrigId("C").id,
       "B",
     ]);
   });
@@ -1144,9 +1144,9 @@ describe("z-index manipulation", () => {
       "A",
       "B",
       "C",
-      "A_copy",
+      getCloneByOrigId("A").id,
-      "B_copy",
+      getCloneByOrigId("B").id,
-      "C_copy",
+      getCloneByOrigId("C").id,
       "D",
     ]);
   });

packages/excalidraw/types.ts

@@ -512,6 +512,22 @@ export interface ExcalidrawProps {
     data: ClipboardData,
     event: ClipboardEvent | null,
   ) => Promise<boolean> | boolean;
+  /**
+   * Called when element(s) are duplicated so you can listen or modify as
+   * needed.
+   *
+   * Called when duplicating via mouse-drag, keyboard, paste, library insert
+   * etc.
+   *
+   * Returned elements will be used in place of the next elements
+   * (you should return all elements, including deleted, and not mutate
+   * the element if changes are made)
+   */
+  onDuplicate?: (
+    nextElements: readonly ExcalidrawElement[],
+    /** excludes the duplicated elements */
+    prevElements: readonly ExcalidrawElement[],
+  ) => ExcalidrawElement[] | void;
   renderTopRightUI?: (
     isMobile: boolean,
     appState: UIAppState,
@@ -681,6 +697,8 @@ export type AppClassProperties = {
   getEditorUIOffsets: App["getEditorUIOffsets"];
   visibleElements: App["visibleElements"];
   excalidrawContainerValue: App["excalidrawContainerValue"];
+
+  onPointerUpEmitter: App["onPointerUpEmitter"];
 };
 
 export type PointerDownState = Readonly<{

packages/excalidraw/utility-types.ts

@@ -65,3 +65,6 @@ export type MakeBrand<T extends string> = {
 
 /** Maybe just promise or already fulfilled one! */
 export type MaybePromise<T> = T | Promise<T>;
+
+// get union of all keys from the union of types
+export type AllPossibleKeys<T> = T extends any ? keyof T : never;

packages/excalidraw/utils.ts

@@ -9,7 +9,11 @@ import {
   isDarwin,
   WINDOWS_EMOJI_FALLBACK_FONT,
 } from "./constants";
-import type { FontFamilyValues, FontString } from "./element/types";
+import type {
+  ExcalidrawBindableElement,
+  FontFamilyValues,
+  FontString,
+} from "./element/types";
 import type {
   ActiveTool,
   AppState,
@@ -543,6 +547,9 @@ export const isTransparent = (color: string) => {
   );
 };
 
+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
@@ -1226,15 +1233,13 @@ export class PromisePool<T> {
   }
 }
 
-export const sanitizeHTMLAttribute = (html: string) => {
+/**
-  return (
+ * use when you need to render unsafe string as HTML attribute, but MAKE SURE
-    html
+ * the attribute is double-quoted when constructing the HTML string
-      // note, if we're not doing stupid things, escaping " is enough,
+ */
-      // but we might end up doing stupid things
+export const escapeDoubleQuotes = (str: string) => {
-      .replace(/&/g, "&amp;")
+  return str.replace(/"/g, "&quot;");
-      .replace(/"/g, "&quot;")
-      .replace(/'/g, "&#39;")
-      .replace(/>/g, "&gt;")
-      .replace(/</g, "&lt;")
-  );
 };
+
+export const castArray = <T>(value: T | T[]): T[] =>
+  Array.isArray(value) ? value : [value];

scripts/woff2/woff2-esbuild-plugins.js

@@ -123,6 +123,17 @@ module.exports.woff2ServerPlugin = (options = {}) => {
           "./assets/NotoEmoji-Regular-2048.ttf",
         );
 
+        const liberationPath = path.resolve(
+          __dirname,
+          "./assets/LiberationSans-Regular.ttf",
+        );
+
+        // need to use the same em size as built-in fonts, otherwise pyftmerge throws (modified manually with font forge)
+        const liberationPath_2048 = path.resolve(
+          __dirname,
+          "./assets/LiberationSans-Regular-2048.ttf",
+        );
+
         const xiaolaiFont = Font.create(fs.readFileSync(xiaolaiPath), {
           type: "ttf",
         });
@@ -130,6 +141,10 @@ module.exports.woff2ServerPlugin = (options = {}) => {
           type: "ttf",
         });
 
+        const liberationFont = Font.create(fs.readFileSync(liberationPath), {
+          type: "ttf",
+        });
+
         const sortedFonts = Array.from(fonts.entries()).sort(
           ([family1], [family2]) => (family1 > family2 ? 1 : -1),
         );
@@ -141,13 +156,6 @@ module.exports.woff2ServerPlugin = (options = {}) => {
             continue;
           }
 
-          const fallbackFontsPaths = [];
-          const shouldIncludeXiaolaiFallback = family.includes("Excalifont");
-
-          if (shouldIncludeXiaolaiFallback) {
-            fallbackFontsPaths.push(xiaolaiPath);
-          }
-
           const baseFont = Regular[0];
           const tempPaths = Regular.map((_, index) =>
             path.resolve(outputDir, `temp_${family}_${index}.ttf`),
@@ -165,10 +173,18 @@ module.exports.woff2ServerPlugin = (options = {}) => {
 
           const mergedFontPath = path.resolve(outputDir, `${family}.ttf`);
 
+          const fallbackFontsPaths = [];
+          const shouldIncludeXiaolaiFallback = family.includes("Excalifont");
+
+          if (shouldIncludeXiaolaiFallback) {
+            fallbackFontsPaths.push(xiaolaiPath);
+          }
+
+          // add liberation as fallback to all fonts, so that unknown characters are rendered similarly to how browser renders them (Helvetica, Arial, etc.)
           if (baseFont.data.head.unitsPerEm === 2048) {
-            fallbackFontsPaths.push(emojiPath_2048);
+            fallbackFontsPaths.push(emojiPath_2048, liberationPath_2048);
           } else {
-            fallbackFontsPaths.push(emojiPath);
+            fallbackFontsPaths.push(emojiPath, liberationPath);
           }
 
           // drop Vertical related metrics, otherwise it does not allow us to merge the fonts
@@ -196,10 +212,12 @@ module.exports.woff2ServerPlugin = (options = {}) => {
             const base = baseFont.data.name[field];
             const xiaolai = xiaolaiFont.data.name[field];
             const emoji = emojiFont.data.name[field];
+            const liberation = liberationFont.data.name[field];
+            // liberation font
 
             return shouldIncludeXiaolaiFallback
-              ? `${base} & ${xiaolai} & ${emoji}`
+              ? `${base} & ${xiaolai} & ${emoji} & ${liberation}`
-              : `${base} & ${emoji}`;
+              : `${base} & ${emoji} & ${liberation}`;
           };
 
           mergedFont.set({

setupTests.ts

@@ -7,6 +7,9 @@ import polyfill from "./packages/excalidraw/polyfill";
 import { testPolyfills } from "./packages/excalidraw/tests/helpers/polyfills";
 import { yellow } from "./packages/excalidraw/tests/helpers/colorize";
 
+// mock for pep.js not working with setPointerCapture()
+HTMLElement.prototype.setPointerCapture = vi.fn();
+
 Object.assign(globalThis, testPolyfills);
 
 require("fake-indexeddb/auto");