chore: merge blocksuite source code (#9213)

blocksuite/framework/global/src/utils/xywh.ts

@@ -0,0 +1,29 @@
+/**
+ * XYWH represents the x, y, width, and height of an element or block.
+ */
+export type XYWH = [number, number, number, number];
+
+/**
+ * SerializedXYWH is a string that represents the x, y, width, and height of a block.
+ */
+export type SerializedXYWH = `[${number},${number},${number},${number}]`;
+
+export function serializeXYWH(
+  x: number,
+  y: number,
+  w: number,
+  h: number
+): SerializedXYWH {
+  return `[${x},${y},${w},${h}]`;
+}
+
+export function deserializeXYWH(xywh: string): XYWH {
+  try {
+    return JSON.parse(xywh) as XYWH;
+  } catch (e) {
+    console.error('Failed to deserialize xywh', xywh);
+    console.error(e);
+
+    return [0, 0, 0, 0];
+  }
+}