refactor: separate elements logic into a standalone package (#9285)

packages/excalidraw/components/ElementCanvasButtons.tsx

@@ -0,0 +1,69 @@
+import { sceneCoordsToViewportCoords } from "@excalidraw/common";
+import { getElementAbsoluteCoords } from "@excalidraw/element/bounds";
+
+import type {
+  ElementsMap,
+  NonDeletedExcalidrawElement,
+} from "@excalidraw/element/types";
+
+import { useExcalidrawAppState } from "../components/App";
+
+import "./ElementCanvasButtons.scss";
+
+import type { AppState } from "../types";
+
+const CONTAINER_PADDING = 5;
+
+const getContainerCoords = (
+  element: NonDeletedExcalidrawElement,
+  appState: AppState,
+  elementsMap: ElementsMap,
+) => {
+  const [x1, y1] = getElementAbsoluteCoords(element, elementsMap);
+  const { x: viewportX, y: viewportY } = sceneCoordsToViewportCoords(
+    { sceneX: x1 + element.width, sceneY: y1 },
+    appState,
+  );
+  const x = viewportX - appState.offsetLeft + 10;
+  const y = viewportY - appState.offsetTop;
+  return { x, y };
+};
+
+export const ElementCanvasButtons = ({
+  children,
+  element,
+  elementsMap,
+}: {
+  children: React.ReactNode;
+  element: NonDeletedExcalidrawElement;
+  elementsMap: ElementsMap;
+}) => {
+  const appState = useExcalidrawAppState();
+
+  if (
+    appState.contextMenu ||
+    appState.newElement ||
+    appState.resizingElement ||
+    appState.isRotating ||
+    appState.openMenu ||
+    appState.viewModeEnabled
+  ) {
+    return null;
+  }
+
+  const { x, y } = getContainerCoords(element, appState, elementsMap);
+
+  return (
+    <div
+      className="excalidraw-canvas-buttons"
+      style={{
+        top: `${y}px`,
+        left: `${x}px`,
+        // width: CONTAINER_WIDTH,
+        padding: CONTAINER_PADDING,
+      }}
+    >
+      {children}
+    </div>
+  );
+};