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

@@ -0,0 +1,37 @@
+/* global LazyLoader, Import */
+'use strict';
+
+(function(exports) {
+
+  /**
+   * A global activity handler which dispatches mozSetMessageHandler events.
+   */
+  function ActivityHandler() {}
+
+  ActivityHandler.prototype = {
+    /**
+     * Starts listening for activities.
+     */
+    start: function() {
+      window.navigator.mozSetMessageHandler('activity',
+        this.handleActivity.bind(this));
+      return LazyLoader.load(['js/import.js']).then(() => {
+        this.import = new Import();
+        return Promise.resolve(this.import.start());
+      });
+    },
+
+    /**
+     * Handles activity requests.
+     */
+    handleActivity: function(activity) {
+      var name = activity.source.name;
+      window.dispatchEvent(new CustomEvent('activity-' + name, {
+        detail: activity
+      }));
+    }
+  };
+
+  exports.ActivityHandler = ActivityHandler;
+
+}(window));