添加设置控制器

src/controls/setting.js

@@ -1,9 +1,26 @@
+import { append, tooltip, setStyle } from '../utils';
+import icons from '../icons';
+
 export default class Setting {
   constructor(option) {
     this.option = option;
   }
 
   apply(art) {
-    this.art = art;
+    const { $control } = this.option;
+    const { events: { proxy }, i18n, setting } = art;
+    this.$setting = append($control, icons.setting);
+    tooltip(this.$setting, i18n.get('Show setting'));
+    proxy($control, 'click', () => {
+      if (setting.isOpen) {
+        setting.hide();
+        setStyle(this.$setting, 'opacity', '1');
+        tooltip(this.$setting, i18n.get('Show setting'));
+      } else {
+        setting.show();
+        setStyle(this.$setting, 'opacity', '0.8');
+        tooltip(this.$setting, i18n.get('Hide setting'));
+      }
+    });
   }
 }