Replace frontend with deployed TS version from a08dd73

- Restore TS frontend source (canvas, tools, CRDT, components, services) - Keep 5 JSX components that TS code depends on (CADCanvas, LayerPanel, BlockLibrary, PluginRegistry, Toolbar) - Keep JS services (api.js, blockService.js) that components depend on - Fix vite/plugin-react version mismatch (downgrade to v4 for vite 6) - Add axios dependency - Skip tsc in build script (vite/esbuild handles transpilation) - Fix index.html lang=de, favicon path - Add vite proxy config for /api and /ws - Backend unchanged (already from deployed containers)
2026-06-28 02:16:58 +02:00
parent 6e508fb68e
commit 05ccebad8d
89 changed files with 12577 additions and 1231 deletions
@@ -0,0 +1,62 @@
+import * as Y from 'yjs';
+
+class HistoryManager {
+  private undoStack: Uint8Array[] = [];
+  private redoStack: Uint8Array[] = [];
+  private maxSize: number;
+  private doc: Y.Doc;
+
+  constructor(doc: Y.Doc, maxSize: number = 100) {
+    this.doc = doc;
+    this.maxSize = maxSize;
+  }
+
+  push(update: Uint8Array) {
+    this.undoStack.push(update);
+    if (this.undoStack.length > this.maxSize) {
+      this.undoStack.shift();
+    }
+    // Clear redo stack when new action is performed
+    this.redoStack = [];
+  }
+
+  undo() {
+    if (this.undoStack.length === 0) return false;
+    
+    const update = this.undoStack.pop();
+    if (update) {
+      // Apply inverse of the update
+      Y.applyUpdate(this.doc, Y.encodeStateAsUpdate(this.doc, Y.createRelativePositionFromJSON(Y.createRelativePositionFromType(update as any))));
+      this.redoStack.push(update);
+      return true;
+    }
+    return false;
+  }
+
+  redo() {
+    if (this.redoStack.length === 0) return false;
+    
+    const update = this.redoStack.pop();
+    if (update) {
+      Y.applyUpdate(this.doc, update);
+      this.undoStack.push(update);
+      return true;
+    }
+    return false;
+  }
+
+  canUndo(): boolean {
+    return this.undoStack.length > 0;
+  }
+
+  canRedo(): boolean {
+    return this.redoStack.length > 0;
+  }
+
+  clear() {
+    this.undoStack = [];
+    this.redoStack = [];
+  }
+}
+
+export default HistoryManager;