fix(menu): all menus can be disabled

src/components/menu/menu.ts

@@ -197,7 +197,7 @@ export class Menu implements RootNode {
   private _cntEle: HTMLElement;
   private _gesture: MenuContentGesture;
   private _type: MenuType;
-  private _isEnabled: boolean = false;
+  private _isEnabled: boolean;
   private _isSwipeEnabled: boolean = true;
   private _isAnimating: boolean = false;
   private _isPersistent: boolean = false;
@@ -357,16 +357,18 @@ export class Menu implements RootNode {
     this._cntEle.classList.add('menu-content');
     this._cntEle.classList.add('menu-content-' + this.type);
 
-    // check if more than one menu is on the same side
-    let shouldEnable = !this._menuCtrl.getMenus().some(m => {
-      return m.side === this.side && m.enabled;
-    });
-
+    let isEnabled = this._isEnabled;
+    if (isEnabled === true || typeof isEnabled === 'undefined') {
+      // check if more than one menu is on the same side
+      isEnabled = !this._menuCtrl.getMenus().some(m => {
+        return m.side === this.side && m.enabled;
+      });
+    }
     // register this menu with the app's menu controller
     this._menuCtrl._register(this);
 
     // mask it as enabled / disabled
-    this.enable(shouldEnable);
+    this.enable(isEnabled);
   }
 
   /**
@@ -580,6 +582,7 @@ export class Menu implements RootNode {
 
     // Close menu inmediately
     if (!canOpen && this.isOpen) {
+      assert(this._init, 'menu must be initialized');
       // close if this menu is open, and should not be enabled
       this._forceClosing();
     }
@@ -591,6 +594,7 @@ export class Menu implements RootNode {
     if (!this._init) {
       return;
     }
+
     const gesture = this._gesture;
     // only listen/unlisten if the menu has initialized
     if (canOpen && this._isSwipeEnabled && !gesture.isListening) {
@@ -603,6 +607,7 @@ export class Menu implements RootNode {
       console.debug('menu, gesture unlisten', this.side);
       gesture.unlisten();
     }
+
     if (this.isOpen || (this._isPane && this._isEnabled)) {
       this.resize();
     }

src/components/menu/test/multiple/app.module.ts

@@ -6,11 +6,10 @@ import { IonicApp, IonicModule, MenuController } from '../../../../../ionic-angu
   templateUrl: 'page1.html'
 })
 export class Page1 {
-  activeMenu: string;
+  activeMenu: string = 'none';
+
+  constructor(private menu: MenuController) { }
 
-  constructor(private menu: MenuController) {
-    this.menu1Active();
-  }
   menu1Active() {
     this.activeMenu = 'menu1';
     this.menu.enable(true, 'menu1');

src/components/menu/test/multiple/main.html

@@ -1,4 +1,4 @@
-<ion-menu [content]="content" id="menu1">
+<ion-menu [content]="content" id="menu1" enabled="false">
 
   <ion-header>
     <ion-toolbar color="secondary">
@@ -17,7 +17,7 @@
 </ion-menu>
 
 
-<ion-menu [content]="content" id="menu2">
+<ion-menu [content]="content" id="menu2" enabled="false">
 
   <ion-header>
     <ion-toolbar color="danger">

src/components/slides/slides.ts

@@ -107,7 +107,7 @@ import { ViewController } from '../../navigation/view-controller';
  * ```ts
  * import { ViewChild } from '@angular/core';
  * import { Slides } from 'ionic-angular';
- 
+
  * class MyPage {
  *   @ViewChild(Slides) slides: Slides;
  *
@@ -971,6 +971,12 @@ export class Slides extends Ion {
     }
   }
 
+  resize() {
+    if (this._init) {
+
+    }
+  }
+
   /**
    * Transition to the specified slide.
    *