extensions/renderer/resources/guest_view/app_view/app_view.js

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 var DocumentNatives = requireNative('document_natives');
   6 var GuestViewContainer = require('guestViewContainer').GuestViewContainer;
   7 var IdGenerator = requireNative('id_generator');
   8
   9 function AppViewImpl(appviewElement) {
  10   GuestViewContainer.call(this, appviewElement, 'appview');
  11
  12   this.app = '';
  13   this.data = '';
  14 }
  15
  16 AppViewImpl.prototype.__proto__ = GuestViewContainer.prototype;
  17
  18 AppViewImpl.VIEW_TYPE = 'AppView';
  19
  20 // Add extra functionality to |this.element|.
  21 AppViewImpl.setupElement = function(proto) {
  22   var apiMethods = [
  23     'connect'
  24   ];
  25
  26   // Forward proto.foo* method calls to AppViewImpl.foo*.
  27   GuestViewContainer.forwardApiMethods(proto, apiMethods);
  28 }
  29
  30 AppViewImpl.prototype.getErrorNode = function() {
  31   if (!this.errorNode) {
  32     this.errorNode = document.createElement('div');
  33     this.errorNode.innerText = 'Unable to connect to app.';
  34     this.errorNode.style.position = 'absolute';
  35     this.errorNode.style.left = '0px';
  36     this.errorNode.style.top = '0px';
  37     this.errorNode.style.width = '100%';
  38     this.errorNode.style.height = '100%';
  39     this.element.shadowRoot.appendChild(this.errorNode);
  40   }
  41   return this.errorNode;
  42 };
  43
  44 AppViewImpl.prototype.buildContainerParams = function() {
  45   return {
  46     'appId': this.app,
  47     'data': this.data || {}
  48   };
  49 };
  50
  51 AppViewImpl.prototype.connect = function(app, data, callback) {
  52   if (!this.elementAttached) {
  53     if (callback) {
  54       callback(false);
  55     }
  56     return;
  57   }
  58
  59   this.app = app;
  60   this.data = data;
  61
  62   this.guest.destroy();
  63   this.guest.create(this.buildParams(), function() {
  64     if (!this.guest.getId()) {
  65       var errorMsg = 'Unable to connect to app "' + app + '".';
  66       window.console.warn(errorMsg);
  67       this.getErrorNode().innerText = errorMsg;
  68       if (callback) {
  69         callback(false);
  70       }
  71       return;
  72     }
  73     this.attachWindow$();
  74     if (callback) {
  75       callback(true);
  76     }
  77   }.bind(this));
  78 };
  79
  80 GuestViewContainer.registerElement(AppViewImpl);