简化player接口

packages/artplayer/src/player/flipMix.js

@@ -1,23 +1,20 @@
 import { errorHandle } from '../utils';
 
 export default function flipMix(art, player) {
-    Object.defineProperty(player, 'flipState', {
-        get: () => art.template.$player.dataset.flip,
-    });
-
     Object.defineProperty(player, 'flip', {
-        value: flip => {
-            const flipList = ['normal', 'horizontal', 'vertical'];
-            errorHandle(flipList.includes(flip), `'flip' only accept ${flipList.toString()} as parameters`);
-            art.template.$player.dataset.flip = flip;
-            art.emit('flipChange', flip);
+        get() {
+            return art.template.$player.dataset.flip;
         },
-    });
-
-    Object.defineProperty(player, 'flipRemove', {
-        value: () => {
-            delete art.template.$player.dataset.flip;
-            art.emit('flipRemove');
+        set(flip) {
+            if (flip) {
+                const flipList = ['normal', 'horizontal', 'vertical'];
+                errorHandle(flipList.includes(flip), `'flip' only accept ${flipList.toString()} as parameters`);
+                art.template.$player.dataset.flip = flip;
+                art.emit('flipChange', flip);
+            } else {
+                delete art.template.$player.dataset.flip;
+                art.emit('flipRemove');
+            }
         },
     });
 }