优化 screenfull 接口

packages/artplayer/src/player/fullscreenMix.js

@@ -8,22 +8,22 @@ export default function fullscreenMix(art, player) {
     } = art;
 
     const screenfullChange = () => {
-        art.emit('fullscreen', screenfull.isFullscreen);
+        art.emit('fullscreen:change', screenfull.isFullscreen);
     };
 
     const screenfullError = () => {
         notice.show('Your browser does not seem to support full screen functionality.');
     };
 
-    try {
+    if (screenfull.enabled) {
         screenfull.on('change', screenfullChange);
         screenfull.on('error', screenfullError);
         destroyEvents.push(() => {
             screenfull.off('change', screenfullChange);
             screenfull.off('error', screenfullError);
         });
-    } catch (error) {
-        console.error(error);
+    } else {
+        screenfullError();
     }
 
     Object.defineProperty(player, 'fullscreenState', {
@@ -32,24 +32,34 @@ export default function fullscreenMix(art, player) {
 
     Object.defineProperty(player, 'fullscreenEnabled', {
         value: () => {
-            if (player.fullscreenWebState) {
-                player.fullscreenWebExit();
+            if (screenfull.enabled) {
+                if (!player.fullscreenState) {
+                    player.fullscreenWebExit();
+                    screenfull.request($player).then(() => {
+                        $player.classList.add('artplayer-fullscreen');
+                        player.aspectRatioReset();
+                        art.emit('fullscreen:enabled');
+                    });
+                }
+            } else {
+                screenfullError();
             }
-            screenfull.request($player);
-            $player.classList.add('artplayer-fullscreen');
-            player.aspectRatioReset();
-            art.emit('fullscreen:enabled');
         },
     });
 
     Object.defineProperty(player, 'fullscreenExit', {
         value: () => {
-            if (player.fullscreenState) {
-                player.fullscreenWebExit();
-                $player.classList.remove('artplayer-fullscreen');
-                screenfull.exit();
-                player.aspectRatioReset();
-                art.emit('fullscreen:exit');
+            if (screenfull.enabled) {
+                if (player.fullscreenState) {
+                    player.fullscreenWebExit();
+                    screenfull.exit().then(() => {
+                        $player.classList.remove('artplayer-fullscreen');
+                        player.aspectRatioReset();
+                        art.emit('fullscreen:exit');
+                    });
+                }
+            } else {
+                screenfullError();
             }
         },
     });