extensions/renderer/resources/guest_view/extension_view/extension_view_attributes.js

   1 // Copyright 2015 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 // This module implements the attributes of the <extensionview> tag.
   6
   7 var GuestViewAttributes = require('guestViewAttributes').GuestViewAttributes;
   8 var ExtensionViewConstants =
   9     require('extensionViewConstants').ExtensionViewConstants;
  10 var ExtensionViewImpl = require('extensionView').ExtensionViewImpl;
  11 var ExtensionViewInternal =
  12     require('extensionViewInternal').ExtensionViewInternal;
  13
  14 // -----------------------------------------------------------------------------
  15 // ExtensionAttribute object.
  16
  17 // Attribute that handles the extension associated with the extensionview.
  18 function ExtensionAttribute(view) {
  19   GuestViewAttributes.ReadOnlyAttribute.call(
  20       this, ExtensionViewConstants.ATTRIBUTE_EXTENSION, view);
  21 }
  22
  23 ExtensionAttribute.prototype.__proto__ =
  24     GuestViewAttributes.ReadOnlyAttribute.prototype;
  25
  26 // -----------------------------------------------------------------------------
  27 // SrcAttribute object.
  28
  29 // Attribute that handles the location and navigation of the extensionview.
  30 // This is read only because we only want to be able to navigate to a src
  31 // through the load API call, which checks for URL validity and the extension
  32 // ID of the new src.
  33 function SrcAttribute(view) {
  34   GuestViewAttributes.ReadOnlyAttribute.call(
  35       this, ExtensionViewConstants.ATTRIBUTE_SRC, view);
  36 }
  37
  38 SrcAttribute.prototype.__proto__ =
  39     GuestViewAttributes.ReadOnlyAttribute.prototype;
  40
  41 SrcAttribute.prototype.handleMutation = function(oldValue, newValue) {
  42   console.log('src is read only. Use .load(url) to navigate to a new ' +
  43       'extension page.');
  44   this.setValueIgnoreMutation(oldValue);
  45 }
  46
  47 // -----------------------------------------------------------------------------
  48
  49 // Sets up all of the extensionview attributes.
  50 ExtensionViewImpl.prototype.setupAttributes = function() {
  51   this.attributes[ExtensionViewConstants.ATTRIBUTE_EXTENSION] =
  52       new ExtensionAttribute(this);
  53   this.attributes[ExtensionViewConstants.ATTRIBUTE_SRC] =
  54       new SrcAttribute(this);
  55 };