build: decouple package deps and introduce yarn workspaces (#7415)

* feat: decouple package deps and introduce yarn workspaces

* update root directory

* fix

* fix scripts

* fix lint

* update path in scripts

* remove yarn.lock files from packages

* ignore workspace

* dummy

* dummy

* remove comment check

* revert workflow changes

* ignore ws when installing gh actions

* remove log

* update path

* fix

* fix typo

packages/excalidraw/element/mutateElement.ts

@@ -0,0 +1,151 @@
+import { ExcalidrawElement } from "./types";
+import Scene from "../scene/Scene";
+import { getSizeFromPoints } from "../points";
+import { randomInteger } from "../random";
+import { Point } from "../types";
+import { getUpdatedTimestamp } from "../utils";
+import { Mutable } from "../utility-types";
+import { ShapeCache } from "../scene/ShapeCache";
+
+type ElementUpdate<TElement extends ExcalidrawElement> = Omit<
+  Partial<TElement>,
+  "id" | "version" | "versionNonce"
+>;
+
+// This function tracks updates of text elements for the purposes for collaboration.
+// The version is used to compare updates when more than one user is working in
+// the same drawing. Note: this will trigger the component to update. Make sure you
+// are calling it either from a React event handler or within unstable_batchedUpdates().
+export const mutateElement = <TElement extends Mutable<ExcalidrawElement>>(
+  element: TElement,
+  updates: ElementUpdate<TElement>,
+  informMutation = true,
+): TElement => {
+  let didChange = false;
+
+  // casting to any because can't use `in` operator
+  // (see https://github.com/microsoft/TypeScript/issues/21732)
+  const { points, fileId } = updates as any;
+
+  if (typeof points !== "undefined") {
+    updates = { ...getSizeFromPoints(points), ...updates };
+  }
+
+  for (const key in updates) {
+    const value = (updates as any)[key];
+    if (typeof value !== "undefined") {
+      if (
+        (element as any)[key] === value &&
+        // if object, always update because its attrs could have changed
+        // (except for specific keys we handle below)
+        (typeof value !== "object" ||
+          value === null ||
+          key === "groupIds" ||
+          key === "scale")
+      ) {
+        continue;
+      }
+
+      if (key === "scale") {
+        const prevScale = (element as any)[key];
+        const nextScale = value;
+        if (prevScale[0] === nextScale[0] && prevScale[1] === nextScale[1]) {
+          continue;
+        }
+      } else if (key === "points") {
+        const prevPoints = (element as any)[key];
+        const nextPoints = value;
+        if (prevPoints.length === nextPoints.length) {
+          let didChangePoints = false;
+          let index = prevPoints.length;
+          while (--index) {
+            const prevPoint: Point = prevPoints[index];
+            const nextPoint: Point = nextPoints[index];
+            if (
+              prevPoint[0] !== nextPoint[0] ||
+              prevPoint[1] !== nextPoint[1]
+            ) {
+              didChangePoints = true;
+              break;
+            }
+          }
+          if (!didChangePoints) {
+            continue;
+          }
+        }
+      }
+
+      (element as any)[key] = value;
+      didChange = true;
+    }
+  }
+  if (!didChange) {
+    return element;
+  }
+
+  if (
+    typeof updates.height !== "undefined" ||
+    typeof updates.width !== "undefined" ||
+    typeof fileId != "undefined" ||
+    typeof points !== "undefined"
+  ) {
+    ShapeCache.delete(element);
+  }
+
+  element.version++;
+  element.versionNonce = randomInteger();
+  element.updated = getUpdatedTimestamp();
+
+  if (informMutation) {
+    Scene.getScene(element)?.informMutation();
+  }
+
+  return element;
+};
+
+export const newElementWith = <TElement extends ExcalidrawElement>(
+  element: TElement,
+  updates: ElementUpdate<TElement>,
+): TElement => {
+  let didChange = false;
+  for (const key in updates) {
+    const value = (updates as any)[key];
+    if (typeof value !== "undefined") {
+      if (
+        (element as any)[key] === value &&
+        // if object, always update because its attrs could have changed
+        (typeof value !== "object" || value === null)
+      ) {
+        continue;
+      }
+      didChange = true;
+    }
+  }
+
+  if (!didChange) {
+    return element;
+  }
+
+  return {
+    ...element,
+    ...updates,
+    updated: getUpdatedTimestamp(),
+    version: element.version + 1,
+    versionNonce: randomInteger(),
+  };
+};
+
+/**
+ * Mutates element, bumping `version`, `versionNonce`, and `updated`.
+ *
+ * NOTE: does not trigger re-render.
+ */
+export const bumpVersion = <T extends Mutable<ExcalidrawElement>>(
+  element: T,
+  version?: ExcalidrawElement["version"],
+) => {
+  element.version = (version ?? element.version) + 1;
+  element.versionNonce = randomInteger();
+  element.updated = getUpdatedTimestamp();
+  return element;
+};