优化整体结构

packages/artplayer/src/events/clickInit.js

@@ -5,9 +5,10 @@ export default function clickInit(art, events) {
     events.proxy(document, ['click', 'contextmenu'], event => {
         if (event.composedPath().indexOf($player) > -1) {
             art.isFocus = true;
+            art.emit('focus');
         } else {
             art.isFocus = false;
-            art.contextmenu.hide();
+            art.emit('blur');
         }
     });
 }

packages/artplayer/src/events/doubleClickInit.js

@@ -3,7 +3,6 @@ export default function doubleClickInit(art, events) {
         template: { $video },
     } = art;
     events.proxy($video, 'dblclick', () => {
-        art.player.fullscreenToggle();
         art.emit('dblclick');
     });
 }

packages/artplayer/src/events/index.js

@@ -2,7 +2,6 @@ import clickInit from './clickInit';
 import hoverInit from './hoverInit';
 import mousemoveInit from './mousemoveInit';
 import resizeInit from './resizeInit';
-// import doubleClickInit from './doubleClickInit';
 
 export default class Events {
     constructor(art) {
@@ -15,7 +14,6 @@ export default class Events {
             hoverInit(art, this);
             mousemoveInit(art, this);
             resizeInit(art, this);
-            // doubleClickInit(art, this);
         });
     }