chrome/browser/resources/md_downloads/toolbar.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 cr.define('downloads', function() {
   6   var Toolbar = Polymer({
   7     is: 'downloads-toolbar',
   8
   9     /** @param {!downloads.ActionService} actionService */
  10     setActionService: function(actionService) {
  11       /** @private {!downloads.ActionService} */
  12       this.actionService_ = actionService;
  13     },
  14
  15     attached: function() {
  16       /** @private {!SearchFieldDelegate} */
  17       this.searchFieldDelegate_ = new ToolbarSearchFieldDelegate(this);
  18       this.$['search-input'].setDelegate(this.searchFieldDelegate_);
  19     },
  20
  21     properties: {
  22       downloadsShowing: {
  23         reflectToAttribute: true,
  24         type: Boolean,
  25         value: false,
  26         observer: 'onDownloadsShowingChange_',
  27       },
  28     },
  29
  30     /** @return {boolean} Whether removal can be undone. */
  31     canUndo: function() {
  32       return this.$['search-input'] != this.shadowRoot.activeElement;
  33     },
  34
  35     /** @return {boolean} Whether "Clear all" should be allowed. */
  36     canClearAll: function() {
  37       return !this.$['search-input'].getValue() && this.downloadsShowing;
  38     },
  39
  40     /** @private */
  41     onClearAllClick_: function() {
  42       assert(this.canClearAll());
  43       this.actionService_.clearAll();
  44     },
  45
  46     /** @private */
  47     onDownloadsShowingChange_: function() {
  48       this.updateClearAll_();
  49     },
  50
  51     /** @param {string} searchTerm */
  52     onSearchTermSearch: function(searchTerm) {
  53       this.actionService_.search(searchTerm);
  54       this.updateClearAll_();
  55     },
  56
  57     /** @private */
  58     onOpenDownloadsFolderClick_: function() {
  59       this.actionService_.openDownloadsFolder();
  60     },
  61
  62     /** @private */
  63     updateClearAll_: function() {
  64       this.$$('#actions .clear-all').hidden = !this.canClearAll();
  65       this.$$('paper-menu .clear-all').hidden = !this.canClearAll();
  66     },
  67   });
  68
  69   /**
  70    * @constructor
  71    * @implements {SearchFieldDelegate}
  72    */
  73   // TODO(devlin): This is a bit excessive, and it would be better to just have
  74   // Toolbar implement SearchFieldDelegate. But for now, we don't know how to
  75   // make that happen with closure compiler.
  76   function ToolbarSearchFieldDelegate(toolbar) {
  77     this.toolbar_ = toolbar;
  78   }
  79
  80   ToolbarSearchFieldDelegate.prototype = {
  81     /** @override */
  82     onSearchTermSearch: function(searchTerm) {
  83       this.toolbar_.onSearchTermSearch(searchTerm);
  84     }
  85   };
  86
  87   return {Toolbar: Toolbar};
  88 });
  89
  90 // TODO(dbeam): https://github.com/PolymerElements/iron-dropdown/pull/16/files
  91 /** @suppress {checkTypes} */
  92 (function() {
  93 Polymer.IronDropdownScrollManager.pushScrollLock = function() {};
  94 })();