fix(menu): run gestures outside of zone

Closes #755

ionic/components/menu/menu.ts

@@ -1,4 +1,4 @@
-import {Component, forwardRef, Directive, Host, EventEmitter, ElementRef} from 'angular2/core';
+import {Component, forwardRef, Directive, Host, EventEmitter, ElementRef, NgZone} from 'angular2/core';
 
 import {Ion} from '../ion';
 import {IonicApp} from '../app/app';
@@ -113,16 +113,14 @@ import * as gestures from  './menu-gestures';
 export class Menu extends Ion {
 
   constructor(
-    app: IonicApp,
     elementRef: ElementRef,
     config: Config,
-    platform: Platform,
-    keyboard: Keyboard
+    private app: IonicApp,
+    private platform: Platform,
+    private keyboard: Keyboard,
+    private zone: NgZone
   ) {
     super(elementRef, config);
-    this.app = app;
-    this.platform = platform;
-    this.keyboard = keyboard;
 
     this.opening = new EventEmitter('opening');
     this.isOpen = false;
@@ -177,6 +175,7 @@ export class Menu extends Ion {
    * @private
    */
   _initGesture() {
+    this.zone.runOutsideAngular(() => {
       switch(this.side) {
         case 'right':
           this._gesture = new gestures.RightMenuGesture(this);
@@ -187,6 +186,7 @@ export class Menu extends Ion {
           break;
       }
       this._targetGesture = new gestures.TargetGesture(this);
+    });
   }
 
   /**

ionic/components/menu/test/basic/index.ts

@@ -40,6 +40,7 @@ class E2EApp {
   constructor(app: IonicApp) {
     this.app = app;
     this.rootView = Page1;
+    this.changeDectionCount = 0;
 
     this.pages = [
       { title: 'Page 1', component: Page1 },
@@ -62,4 +63,9 @@ class E2EApp {
   onMenuOpening(ev) {
     console.log('onMenuOpening', ev);
   }
+
+  isHidden() {
+    console.log('Change detection', ++this.changeDectionCount);
+    return false;
+  }
 }

ionic/components/menu/test/basic/main.html

@@ -12,7 +12,7 @@
         {{p.title}}
       </button>
 
-      <button ion-item menuClose="leftMenu" detail-none>
+      <button ion-item menuClose="leftMenu" detail-none [hidden]="isHidden()">
         Close Menu
       </button>