feat: in canvas links between shapes (#8812)

Co-authored-by: dwelle <5153846+dwelle@users.noreply.github.com>

packages/excalidraw/actions/actionCanvas.tsx

@@ -87,7 +87,8 @@ export const actionClearCanvas = register({
   predicate: (elements, appState, props, app) => {
     return (
       !!app.props.UIOptions.canvasActions.clearCanvas &&
-      !appState.viewModeEnabled
+      !appState.viewModeEnabled &&
+      appState.openDialog?.name !== "elementLinkSelector"
     );
   },
   perform: (elements, appState, _, app) => {

packages/excalidraw/actions/actionElementLink.ts

@@ -0,0 +1,105 @@
+import { copyTextToSystemClipboard } from "../clipboard";
+import { copyIcon, elementLinkIcon } from "../components/icons";
+import {
+  canCreateLinkFromElements,
+  defaultGetElementLinkFromSelection,
+  getLinkIdAndTypeFromSelection,
+} from "../element/elementLink";
+import { t } from "../i18n";
+import { getSelectedElements } from "../scene";
+import { StoreAction } from "../store";
+import { register } from "./register";
+
+export const actionCopyElementLink = register({
+  name: "copyElementLink",
+  label: "labels.copyElementLink",
+  icon: copyIcon,
+  trackEvent: { category: "element" },
+  perform: async (elements, appState, _, app) => {
+    const selectedElements = getSelectedElements(elements, appState);
+
+    try {
+      if (window.location) {
+        const idAndType = getLinkIdAndTypeFromSelection(
+          selectedElements,
+          appState,
+        );
+
+        if (idAndType) {
+          await copyTextToSystemClipboard(
+            app.props.generateLinkForSelection
+              ? app.props.generateLinkForSelection(idAndType.id, idAndType.type)
+              : defaultGetElementLinkFromSelection(
+                  idAndType.id,
+                  idAndType.type,
+                ),
+          );
+
+          return {
+            appState: {
+              toast: {
+                message: t("toast.elementLinkCopied"),
+                closable: true,
+              },
+            },
+            storeAction: StoreAction.NONE,
+          };
+        }
+        return {
+          appState,
+          elements,
+          app,
+          storeAction: StoreAction.NONE,
+        };
+      }
+    } catch (error: any) {
+      console.error(error);
+    }
+
+    return {
+      appState,
+      elements,
+      app,
+      storeAction: StoreAction.NONE,
+    };
+  },
+  predicate: (elements, appState) =>
+    canCreateLinkFromElements(getSelectedElements(elements, appState)),
+});
+
+export const actionLinkToElement = register({
+  name: "linkToElement",
+  label: "labels.linkToElement",
+  icon: elementLinkIcon,
+  perform: (elements, appState, _, app) => {
+    const selectedElements = getSelectedElements(elements, appState);
+
+    if (
+      selectedElements.length !== 1 ||
+      !canCreateLinkFromElements(selectedElements)
+    ) {
+      return { elements, appState, app, storeAction: StoreAction.NONE };
+    }
+
+    return {
+      appState: {
+        ...appState,
+        openDialog: {
+          name: "elementLinkSelector",
+          sourceElementId: getSelectedElements(elements, appState)[0].id,
+        },
+      },
+      storeAction: StoreAction.CAPTURE,
+    };
+  },
+  predicate: (elements, appState, appProps, app) => {
+    const selectedElements = getSelectedElements(elements, appState);
+
+    return (
+      appState.openDialog?.name !== "elementLinkSelector" &&
+      selectedElements.length === 1 &&
+      canCreateLinkFromElements(selectedElements)
+    );
+  },
+  trackEvent: false,
+});

packages/excalidraw/actions/types.ts

@@ -135,6 +135,8 @@ export type ActionName =
   | "autoResize"
   | "elementStats"
   | "searchMenu"
+  | "copyElementLink"
+  | "linkToElement"
   | "cropEditor";
 
 export type PanelComponentProps = {