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assets/webapps/system.gaiamobile.org/js/homescreen_window_manager.js

@@ -0,0 +1,65 @@
+/* global BaseModule */
+
+'use strict';
+(function(exports) {
+  /**
+   * HomescreenWindowManager manages the show/hide of HomescreenWindow and
+   * HomescreenLauncher instances.
+   *
+   * @class HomescreenWindowManager
+   * @requires BaseModule
+   */
+  function HomescreenWindowManager() {}
+  HomescreenWindowManager.EVENTS = [
+    'appswitching',
+    'open-app',
+    'webapps-launch'
+  ];
+  HomescreenWindowManager.SUB_MODULES = [
+    'HomescreenLauncher'
+  ];
+  HomescreenWindowManager.STATES = [
+    'getHomescreen'
+  ];
+
+  BaseModule.create(HomescreenWindowManager, {
+    DEBUG: false,
+    name: 'HomescreenWindowManager',
+
+    _handle_appswitching: function() {
+      this.getHomescreen().fadeOut();
+    },
+
+    '_handle_open-app': function(evt) {
+      this._handle_launch_homescreen(evt);
+    },
+    '_handle_webapps-launch': function(evt) {
+      this._handle_launch_homescreen(evt);
+    },
+    _handle_launch_homescreen: function(evt) {
+      var detail = evt.detail;
+      if (this.homescreenLauncher &&
+          detail.manifestURL === this.homescreenLauncher.manifestURL) {
+        this.getHomescreen();
+        evt.stopImmediatePropagation();
+      }
+    },
+
+    /**
+     * getHomescreen returns the homescreen app window based on if it is
+     * triggered by home event.
+     *
+     * @memberOf HomescreenWindowManager.prototype
+     */
+    getHomescreen: function getHomescreen(isHomeEvent) {
+      if (!this.homescreenLauncher) {
+        return null;
+      }
+      var home  = this.homescreenLauncher.getHomescreen(true);
+      if (isHomeEvent) {
+        home.ensure(true);
+      }
+      return home;
+    }
+  });
+}());