优化整体结构

packages/artplayer/src/player/rectMix.js

@@ -0,0 +1,15 @@
+export default function rectMix(art, player) {
+    Object.defineProperty(player, 'rect', {
+        get: () => {
+            return art.template.$player.getBoundingClientRect();
+        },
+    });
+
+    ['bottom', 'height', 'left', 'right', 'top', 'width', 'x', 'y'].forEach(key => {
+        Object.defineProperty(player, key, {
+            get: () => {
+                return player.rect[key];
+            },
+        });
+    });
+}