fix miniProgressBar bug

packages/artplayer/src/plugins/miniProgressBar.js

@@ -5,8 +5,6 @@ export default function miniProgressBar(art) {
         option: { theme },
     } = art;
 
-    let timer = null;
-
     layers.add({
         name: 'miniProgressBar',
         style: {
@@ -19,30 +17,14 @@ export default function miniProgressBar(art) {
             background: theme,
         },
         mounted($progressBar) {
-            function hide() {
-                if (timer) {
-                    clearTimeout(timer);
-                }
-                $progressBar.style.display = 'none';
-            }
-
-            function show() {
-                if (player.playing) {
-                    timer = setTimeout(() => {
-                        $progressBar.style.display = 'block';
-                    }, 200);
-                }
-            }
-
             art.on('controls:show', () => {
-                hide();
+                $progressBar.style.display = 'none';
             });
-            art.on('hoverenter', () => {
-                hide();
-            });
-            art.on('hoverleave', () => {
-                show();
+
+            art.on('controls:hide', () => {
+                $progressBar.style.display = 'block';
             });
+
             art.on('video:timeupdate', () => {
                 $progressBar.style.width = `${player.played * 100}%`;
             });