添加画质控制器

src/events.js

@@ -3,6 +3,7 @@ export default class Events {
     this.art = art;
     this.destroyEvents = [];
     this.proxy = this.proxy.bind(this);
+    this.hover = this.hover.bind(this);
   }
 
   proxy(target, name, callback, option = {}) {
@@ -16,6 +17,11 @@ export default class Events {
     });
   }
 
+  hover(target, mouseenter, mouseleave) {
+    this.proxy(target, 'mouseenter', mouseenter);
+    this.proxy(target, 'mouseleave', mouseleave);
+  }
+
   destroy() {
     this.destroyEvents.forEach(event => event());
   }