src/chrome/browser/resources/options/search_engine_manager_engine_list.js

   1 // Copyright (c) 2012 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 /**
   6  * @typedef {{canBeDefault: boolean,
   7  *            canBeEdited: boolean,
   8  *            canBeRemoved: boolean,
   9  *            default: boolean,
  10  *            displayName: string,
  11  *            extension: (Object|undefined),
  12  *            iconURL: (string|undefined),
  13  *            isOmniboxExtension: boolean,
  14  *            keyword: string,
  15  *            modelIndex: string,
  16  *            name: string,
  17  *            url: string,
  18  *            urlLocked: boolean}}
  19  * @see chrome/browser/ui/webui/options/search_engine_manager_handler.cc
  20  */
  21 var SearchEngine;
  22
  23 cr.define('options.search_engines', function() {
  24   /** @const */ var ControlledSettingIndicator =
  25                     options.ControlledSettingIndicator;
  26   /** @const */ var InlineEditableItemList = options.InlineEditableItemList;
  27   /** @const */ var InlineEditableItem = options.InlineEditableItem;
  28   /** @const */ var ListSelectionController = cr.ui.ListSelectionController;
  29
  30   /**
  31    * Creates a new search engine list item.
  32    * @param {SearchEngine} searchEngine The search engine this represents.
  33    * @constructor
  34    * @extends {options.InlineEditableItem}
  35    */
  36   function SearchEngineListItem(searchEngine) {
  37     var el = cr.doc.createElement('div');
  38     el.searchEngine_ = searchEngine;
  39     SearchEngineListItem.decorate(el);
  40     return el;
  41   }
  42
  43   /**
  44    * Decorates an element as a search engine list item.
  45    * @param {!HTMLElement} el The element to decorate.
  46    */
  47   SearchEngineListItem.decorate = function(el) {
  48     el.__proto__ = SearchEngineListItem.prototype;
  49     el.decorate();
  50   };
  51
  52   SearchEngineListItem.prototype = {
  53     __proto__: InlineEditableItem.prototype,
  54
  55     /**
  56      * Input field for editing the engine name.
  57      * @type {HTMLElement}
  58      * @private
  59      */
  60     nameField_: null,
  61
  62     /**
  63      * Input field for editing the engine keyword.
  64      * @type {HTMLElement}
  65      * @private
  66      */
  67     keywordField_: null,
  68
  69     /**
  70      * Input field for editing the engine url.
  71      * @type {HTMLElement}
  72      * @private
  73      */
  74     urlField_: null,
  75
  76     /**
  77      * Whether or not an input validation request is currently outstanding.
  78      * @type {boolean}
  79      * @private
  80      */
  81     waitingForValidation_: false,
  82
  83     /**
  84      * Whether or not the current set of input is known to be valid.
  85      * @type {boolean}
  86      * @private
  87      */
  88     currentlyValid_: false,
  89
  90     /**
  91      * @type {?SearchEngine}
  92      */
  93     searchEngine_: null,
  94
  95     /** @override */
  96     decorate: function() {
  97       InlineEditableItem.prototype.decorate.call(this);
  98
  99       var engine = this.searchEngine_;
 100
 101       if (engine.modelIndex == '-1') {
 102         this.isPlaceholder = true;
 103         engine.name = '';
 104         engine.keyword = '';
 105         engine.url = '';
 106       }
 107
 108       this.currentlyValid_ = !this.isPlaceholder;
 109
 110       if (engine.default)
 111         this.classList.add('default');
 112
 113       this.deletable = engine.canBeRemoved;
 114       this.closeButtonElement.tabIndex = 0;
 115
 116       // Construct the name column.
 117       var nameColEl = this.ownerDocument.createElement('div');
 118       nameColEl.className = 'name-column';
 119       nameColEl.classList.add('weakrtl');
 120       this.contentElement.appendChild(nameColEl);
 121
 122       // Add the favicon.
 123       var faviconDivEl = this.ownerDocument.createElement('div');
 124       faviconDivEl.className = 'favicon';
 125       if (!this.isPlaceholder) {
 126         faviconDivEl.style.backgroundImage = imageset(
 127             'chrome://favicon/size/16@scalefactorx/iconurl/' + engine.iconURL);
 128       }
 129       nameColEl.appendChild(faviconDivEl);
 130
 131       var nameEl = this.createEditableTextCell(engine.displayName);
 132       nameEl.classList.add('weakrtl');
 133       nameColEl.appendChild(nameEl);
 134
 135       // Then the keyword column.
 136       var keywordEl = this.createEditableTextCell(engine.keyword);
 137       keywordEl.className = 'keyword-column';
 138       keywordEl.classList.add('weakrtl');
 139       this.contentElement.appendChild(keywordEl);
 140
 141       // And the URL column.
 142       var urlEl = this.createEditableTextCell(engine.url);
 143       // Extensions should not display a URL column.
 144       if (!engine.isOmniboxExtension) {
 145         var urlWithButtonEl = this.ownerDocument.createElement('div');
 146         urlWithButtonEl.appendChild(urlEl);
 147         urlWithButtonEl.className = 'url-column';
 148         urlWithButtonEl.classList.add('weakrtl');
 149         this.contentElement.appendChild(urlWithButtonEl);
 150         // Add the Make Default button. Temporary until drag-and-drop
 151         // re-ordering is implemented. When this is removed, remove the extra
 152         // div above.
 153         if (engine.canBeDefault) {
 154           var makeDefaultButtonEl = this.ownerDocument.createElement('button');
 155           makeDefaultButtonEl.className =
 156               'custom-appearance list-inline-button';
 157           makeDefaultButtonEl.textContent =
 158               loadTimeData.getString('makeDefaultSearchEngineButton');
 159           makeDefaultButtonEl.onclick = function(e) {
 160             chrome.send('managerSetDefaultSearchEngine', [engine.modelIndex]);
 161           };
 162           makeDefaultButtonEl.onmousedown = function(e) {
 163             // Don't select the row when clicking the button.
 164             e.stopPropagation();
 165             // Don't focus on the button.
 166             e.preventDefault();
 167           };
 168           urlWithButtonEl.appendChild(makeDefaultButtonEl);
 169         }
 170       }
 171
 172       // Do final adjustment to the input fields.
 173       this.nameField_ = /** @type {HTMLElement} */(
 174           nameEl.querySelector('input'));
 175       // The editable field uses the raw name, not the display name.
 176       this.nameField_.value = engine.name;
 177       this.keywordField_ = /** @type {HTMLElement} */(
 178           keywordEl.querySelector('input'));
 179       this.urlField_ = /** @type {HTMLElement} */(urlEl.querySelector('input'));
 180
 181       if (engine.urlLocked)
 182         this.urlField_.disabled = true;
 183
 184       if (this.isPlaceholder) {
 185         this.nameField_.placeholder =
 186             loadTimeData.getString('searchEngineTableNamePlaceholder');
 187         this.keywordField_.placeholder =
 188             loadTimeData.getString('searchEngineTableKeywordPlaceholder');
 189         this.urlField_.placeholder =
 190             loadTimeData.getString('searchEngineTableURLPlaceholder');
 191       }
 192
 193       var fields = [this.nameField_, this.keywordField_, this.urlField_];
 194         for (var i = 0; i < fields.length; i++) {
 195         fields[i].oninput = this.startFieldValidation_.bind(this);
 196       }
 197
 198       // Listen for edit events.
 199       if (engine.canBeEdited) {
 200         this.addEventListener('edit', this.onEditStarted_.bind(this));
 201         this.addEventListener('canceledit', this.onEditCancelled_.bind(this));
 202         this.addEventListener('commitedit', this.onEditCommitted_.bind(this));
 203       } else {
 204         this.editable = false;
 205         this.querySelector('.row-delete-button').hidden = true;
 206         var indicator = new ControlledSettingIndicator();
 207         indicator.setAttribute('setting', 'search-engine');
 208         // Create a synthetic pref change event decorated as
 209         // CoreOptionsHandler::CreateValueForPref() does.
 210         var event = new Event(this.contentType);
 211         if (engine.extension) {
 212           event.value = { controlledBy: 'extension',
 213                           extension: engine.extension };
 214         } else {
 215           event.value = { controlledBy: 'policy' };
 216         }
 217         indicator.handlePrefChange(event);
 218         this.appendChild(indicator);
 219       }
 220     },
 221
 222     /** @override */
 223     get currentInputIsValid() {
 224       return !this.waitingForValidation_ && this.currentlyValid_;
 225     },
 226
 227     /** @override */
 228     get hasBeenEdited() {
 229       var engine = this.searchEngine_;
 230       return this.nameField_.value != engine.name ||
 231              this.keywordField_.value != engine.keyword ||
 232              this.urlField_.value != engine.url;
 233     },
 234
 235     /**
 236      * Called when entering edit mode; starts an edit session in the model.
 237      * @param {Event} e The edit event.
 238      * @private
 239      */
 240     onEditStarted_: function(e) {
 241       var editIndex = this.searchEngine_.modelIndex;
 242       chrome.send('editSearchEngine', [String(editIndex)]);
 243       this.startFieldValidation_();
 244     },
 245
 246     /**
 247      * Called when committing an edit; updates the model.
 248      * @param {Event} e The end event.
 249      * @private
 250      */
 251     onEditCommitted_: function(e) {
 252       chrome.send('searchEngineEditCompleted', this.getInputFieldValues_());
 253     },
 254
 255     /**
 256      * Called when cancelling an edit; informs the model and resets the control
 257      * states.
 258      * @param {Event} e The cancel event.
 259      * @private
 260      */
 261     onEditCancelled_: function(e) {
 262       chrome.send('searchEngineEditCancelled');
 263
 264       // The name field has been automatically set to match the display name,
 265       // but it should use the raw name instead.
 266       this.nameField_.value = this.searchEngine_.name;
 267       this.currentlyValid_ = !this.isPlaceholder;
 268     },
 269
 270     /**
 271      * Returns the input field values as an array suitable for passing to
 272      * chrome.send. The order of the array is important.
 273      * @private
 274      * @return {Array} The current input field values.
 275      */
 276     getInputFieldValues_: function() {
 277       return [this.nameField_.value,
 278               this.keywordField_.value,
 279               this.urlField_.value];
 280     },
 281
 282     /**
 283      * Begins the process of asynchronously validing the input fields.
 284      * @private
 285      */
 286     startFieldValidation_: function() {
 287       this.waitingForValidation_ = true;
 288       var args = this.getInputFieldValues_();
 289       args.push(this.searchEngine_.modelIndex);
 290       chrome.send('checkSearchEngineInfoValidity', args);
 291     },
 292
 293     /**
 294      * Callback for the completion of an input validition check.
 295      * @param {Object} validity A dictionary of validitation results.
 296      */
 297     validationComplete: function(validity) {
 298       this.waitingForValidation_ = false;
 299       // TODO(stuartmorgan): Implement the full validation UI with
 300       // checkmark/exclamation mark icons and tooltips showing the errors.
 301       if (validity.name) {
 302         this.nameField_.setCustomValidity('');
 303       } else {
 304         this.nameField_.setCustomValidity(
 305             loadTimeData.getString('editSearchEngineInvalidTitleToolTip'));
 306       }
 307
 308       if (validity.keyword) {
 309         this.keywordField_.setCustomValidity('');
 310       } else {
 311         this.keywordField_.setCustomValidity(
 312             loadTimeData.getString('editSearchEngineInvalidKeywordToolTip'));
 313       }
 314
 315       if (validity.url) {
 316         this.urlField_.setCustomValidity('');
 317       } else {
 318         this.urlField_.setCustomValidity(
 319             loadTimeData.getString('editSearchEngineInvalidURLToolTip'));
 320       }
 321
 322       this.currentlyValid_ = validity.name && validity.keyword && validity.url;
 323     },
 324   };
 325
 326   /**
 327    * @constructor
 328    * @extends {options.InlineEditableItemList}
 329    */
 330   var SearchEngineList = cr.ui.define('list');
 331
 332   SearchEngineList.prototype = {
 333     __proto__: InlineEditableItemList.prototype,
 334
 335     /**
 336      * @override
 337      * @param {SearchEngine} searchEngine
 338      */
 339     createItem: function(searchEngine) {
 340       return new SearchEngineListItem(searchEngine);
 341     },
 342
 343     /** @override */
 344     deleteItemAtIndex: function(index) {
 345       var modelIndex = this.dataModel.item(index).modelIndex;
 346       chrome.send('removeSearchEngine', [String(modelIndex)]);
 347     },
 348
 349     /**
 350      * Passes the results of an input validation check to the requesting row
 351      * if it's still being edited.
 352      * @param {number} modelIndex The model index of the item that was checked.
 353      * @param {Object} validity A dictionary of validitation results.
 354      */
 355     validationComplete: function(validity, modelIndex) {
 356       // If it's not still being edited, it no longer matters.
 357       var currentSelection = this.selectedItem;
 358       if (!currentSelection)
 359         return;
 360       var listItem = this.getListItem(currentSelection);
 361       if (listItem.editing && currentSelection.modelIndex == modelIndex)
 362         listItem.validationComplete(validity);
 363     },
 364   };
 365
 366   // Export
 367   return {
 368     SearchEngineList: SearchEngineList
 369   };
 370
 371 });
 372