Create interface to manage manual exceptions.

chrome/browser/resources/options/managed_user_exceptions_area.js

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-cr.define('options.contentSettings', function() {
+// TODO(sergiu): Write a base class such that both this and the content
+// settings exceptions inherit from it (http://crbug.com/227520).
+cr.define('options.managedUserSettings', function() {
   /** @const */ var ControlledSettingIndicator =
                     options.ControlledSettingIndicator;
   /** @const */ var InlineEditableItemList = options.InlineEditableItemList;
   /** @const */ var InlineEditableItem = options.InlineEditableItem;
   /** @const */ var ArrayDataModel = cr.ui.ArrayDataModel;
 
   /**
    * Creates a new exceptions list item.
    *
-   * @param {string} contentType The type of the list.
-   * @param {string} mode The browser mode, 'otr' or 'normal'.
-   * @param {boolean} enableAskOption Whether to show an 'ask every time'
-   *     option in the select.
    * @param {Object} exception A dictionary that contains the data of the
    *     exception.
    * @constructor
    * @extends {options.InlineEditableItem}
    */
-  function ExceptionsListItem(contentType, mode, enableAskOption, exception) {
+  function ExceptionsListItem(exception) {
     var el = cr.doc.createElement('div');
-    el.mode = mode;
-    el.contentType = contentType;
-    el.enableAskOption = enableAskOption;
+    el.contentType = 'manual-exceptions';
     el.dataItem = exception;
     el.__proto__ = ExceptionsListItem.prototype;
     el.decorate();
 
     return el;
   }
 
   ExceptionsListItem.prototype = {
     __proto__: InlineEditableItem.prototype,
 
@@ skipping 24 matching lines @@
         this.contentElement.appendChild(settingLabel);
         this.settingLabel = settingLabel;
       }
 
       // Setting select element for edit mode.
       var select = cr.doc.createElement('select');
       var optionAllow = cr.doc.createElement('option');
       optionAllow.textContent = loadTimeData.getString('allowException');
       optionAllow.value = 'allow';
       select.appendChild(optionAllow);
-
-      if (this.enableAskOption) {
-        var optionAsk = cr.doc.createElement('option');
-        optionAsk.textContent = loadTimeData.getString('askException');
-        optionAsk.value = 'ask';
-        select.appendChild(optionAsk);
-      }
-
-      if (this.contentType == 'cookies') {
-        var optionSession = cr.doc.createElement('option');
-        optionSession.textContent = loadTimeData.getString('sessionException');
-        optionSession.value = 'session';
-        select.appendChild(optionSession);
-      }
-
-      if (this.contentType != 'fullscreen') {
-        var optionBlock = cr.doc.createElement('option');
-        optionBlock.textContent = loadTimeData.getString('blockException');
-        optionBlock.value = 'block';
-        select.appendChild(optionBlock);
-      }
-
-      if (this.isEmbeddingRule()) {
-        this.patternLabel.classList.add('sublabel');
-        this.editable = false;
-      }
-
-      if (this.setting == 'default') {
-        // Items that don't have their own settings (parents of 'embedded on'
-        // items) aren't deletable.
-        this.deletable = false;
-        this.editable = false;
-      }
+      var optionBlock = cr.doc.createElement('option');
+      optionBlock.textContent = loadTimeData.getString('blockException');
+      optionBlock.value = 'block';
+      select.appendChild(optionBlock);
 
       this.contentElement.appendChild(select);
       select.className = 'exception-setting';
       if (this.pattern)
         select.setAttribute('displaymode', 'edit');
 
-      if (this.contentType == 'media-stream') {
-        this.settingLabel.classList.add('media-audio-setting');
-
-        var videoSettingLabel = cr.doc.createElement('span');
-        videoSettingLabel.textContent = this.videoSettingForDisplay();
-        videoSettingLabel.className = 'exception-setting';
-        videoSettingLabel.classList.add('media-video-setting');
-        videoSettingLabel.setAttribute('displaymode', 'static');
-        this.contentElement.appendChild(videoSettingLabel);
-      }
-
       // Used to track whether the URL pattern in the input is valid.
       // This will be true if the browser process has informed us that the
       // current text in the input is valid. Changing the text resets this to
       // false, and getting a response from the browser sets it back to true.
       // It starts off as false for empty string (new exceptions) or true for
       // already-existing exceptions (which we assume are valid).
       this.inputValidityKnown = this.pattern;
       // This one tracks the actual validity of the pattern in the input. This
       // starts off as true so as not to annoy the user when he adds a new and
       // empty input.
       this.inputIsValid = true;
 
       this.input = input;
       this.select = select;
 
       this.updateEditables();
 
-      // Editing notifications, geolocation and media-stream is disabled for
-      // now.
-      if (this.contentType == 'notifications' ||
-          this.contentType == 'location' ||
-          this.contentType == 'media-stream') {
-        this.editable = false;
-      }
-
-      // If the source of the content setting exception is not a user
-      // preference, that source controls the exception and the user cannot edit
-      // or delete it.
-      var controlledBy =
-          this.dataItem.source && this.dataItem.source != 'preference' ?
-              this.dataItem.source : null;
-
-      if (controlledBy) {
-        this.setAttribute('controlled-by', controlledBy);
-        this.deletable = false;
-        this.editable = false;
-      }
-
-      if (controlledBy == 'policy' || controlledBy == 'extension') {
-        this.querySelector('.row-delete-button').hidden = true;
-        var indicator = ControlledSettingIndicator();
-        indicator.setAttribute('content-exception', this.contentType);
-        // Create a synthetic pref change event decorated as
-        // CoreOptionsHandler::CreateValueForPref() does.
-        var event = new cr.Event(this.contentType);
-        event.value = { controlledBy: controlledBy };
-        indicator.handlePrefChange(event);
-        this.appendChild(indicator);
-      }
-
-      // If the exception comes from a hosted app, display the name and the
-      // icon of the app.
-      if (controlledBy == 'HostedApp') {
-        this.title =
-            loadTimeData.getString('set_by') + ' ' + this.dataItem.appName;
-        var button = this.querySelector('.row-delete-button');
-        // Use the host app's favicon (16px, match bigger size).
-        // See c/b/ui/webui/extensions/extension_icon_source.h
-        // for a description of the chrome://extension-icon URL.
-        button.style.backgroundImage =
-            'url(\'chrome://extension-icon/' + this.dataItem.appId + '/16/1\')';
-      }
-
       var listItem = this;
       // Handle events on the editable nodes.
       input.oninput = function(event) {
         listItem.inputValidityKnown = false;
-        chrome.send('checkExceptionPatternValidity',
-                    [listItem.contentType, listItem.mode, input.value]);
+        chrome.send('checkManualExceptionValidity',
+                    [input.value]);
       };
 
       // Listen for edit events.
       this.addEventListener('canceledit', this.onEditCancelled_);
       this.addEventListener('commitedit', this.onEditCommitted_);
     },
 
-    isEmbeddingRule: function() {
-      return this.dataItem.embeddingOrigin &&
-          this.dataItem.embeddingOrigin !== this.dataItem.origin;
-    },
-
     /**
      * The pattern (e.g., a URL) for the exception.
      *
      * @type {string}
      */
     get pattern() {
-      if (!this.isEmbeddingRule()) {
-        return this.dataItem.origin;
-      } else {
-        return loadTimeData.getStringF('embeddedOnHost',
-                                       this.dataItem.embeddingOrigin);
-      }
-
-      return this.dataItem.displayPattern;
+      return this.dataItem.pattern;
     },
     set pattern(pattern) {
       if (!this.editable)
         console.error('Tried to change uneditable pattern');
 
-      this.dataItem.displayPattern = pattern;
+      this.dataItem.pattern = pattern;
     },
 
     /**
      * The setting (allow/block) for the exception.
      *
      * @type {string}
      */
     get setting() {
       return this.dataItem.setting;
     },
     set setting(setting) {
       this.dataItem.setting = setting;
     },
 
     /**
      * Gets a human-readable setting string.
      *
      * @return {string} The display string.
      */
     settingForDisplay: function() {
       return this.getDisplayStringForSetting(this.setting);
     },
 
     /**
-     * media video specific function.
-     * Gets a human-readable video setting string.
-     *
-     * @return {string} The display string.
-     */
-    videoSettingForDisplay: function() {
-      return this.getDisplayStringForSetting(this.dataItem.video);
-    },
-
-    /**
      * Gets a human-readable display string for setting.
      *
      * @param {string} setting The setting to be displayed.
      * @return {string} The display string.
      */
     getDisplayStringForSetting: function(setting) {
       if (setting == 'allow')
         return loadTimeData.getString('allowException');
       else if (setting == 'block')
         return loadTimeData.getString('blockException');
-      else if (setting == 'ask')
-        return loadTimeData.getString('askException');
-      else if (setting == 'session')
-        return loadTimeData.getString('sessionException');
-      else if (setting == 'default')
-        return '';
 
       console.error('Unknown setting: [' + setting + ']');
       return '';
     },
 
     /**
      * Update this list item to reflect whether the input is a valid pattern.
      *
      * @param {boolean} valid Whether said pattern is valid in the context of a
      *     content exception setting.
@@ skipping 63 matching lines @@
       this.setPatternValid(true);
     },
 
     /**
      * Editing is complete; update the model.
      *
      * @param {string} newPattern The pattern that the user entered.
      * @param {string} newSetting The setting the user chose.
      */
     finishEdit: function(newPattern, newSetting) {
+      this.setting = newSetting;
       this.patternLabel.textContent = newPattern;
       this.settingLabel.textContent = this.settingForDisplay();
       var oldPattern = this.pattern;
       this.pattern = newPattern;
-      this.setting = newSetting;
+      var needsUpdate = false;
 
-      // TODO(estade): this will need to be updated if geolocation/notifications
-      // become editable.
       if (oldPattern != newPattern) {
-        chrome.send('removeException',
-                    [this.contentType, this.mode, oldPattern]);
+        needsUpdate = true;
+        chrome.send('removeManualException', [oldPattern]);
       }
 
-      chrome.send('setException',
-                  [this.contentType, this.mode, newPattern, newSetting]);
+      // If only the setting is changed for this pattern and not the pattern
+      // itself then the interface is already updated so we don't need to
+      // trigger it then processing is completed.
+      chrome.send('setManualException', [newPattern, newSetting, needsUpdate]);
     }
   };
 
   /**
    * Creates a new list item for the Add New Item row, which doesn't represent
    * an actual entry in the exceptions list but allows the user to add new
    * exceptions.
    *
-   * @param {string} contentType The type of the list.
-   * @param {string} mode The browser mode, 'otr' or 'normal'.
-   * @param {boolean} enableAskOption Whether to show an 'ask every time' option
-   *     in the select.
    * @constructor
    * @extends {cr.ui.ExceptionsListItem}
    */
-  function ExceptionsAddRowListItem(contentType, mode, enableAskOption) {
+  function ExceptionsAddRowListItem() {
     var el = cr.doc.createElement('div');
-    el.mode = mode;
-    el.contentType = contentType;
-    el.enableAskOption = enableAskOption;
     el.dataItem = [];
     el.__proto__ = ExceptionsAddRowListItem.prototype;
     el.decorate();
 
     return el;
   }
 
   ExceptionsAddRowListItem.prototype = {
     __proto__: ExceptionsListItem.prototype,
 
     decorate: function() {
       ExceptionsListItem.prototype.decorate.call(this);
 
       this.input.placeholder =
           loadTimeData.getString('addNewExceptionInstructions');
 
-      // Do we always want a default of allow?
+      // Set 'Allow' as default for new entries.
       this.setting = 'allow';
     },
 
     /**
      * Clear the <input> and let the placeholder text show again.
      */
     resetInput: function() {
       this.input.value = '';
     },
 
     /** @override */
     get hasBeenEdited() {
       return this.input.value != '';
     },
 
     /**
      * Editing is complete; update the model. As long as the pattern isn't
      * empty, we'll just add it.
      *
      * @param {string} newPattern The pattern that the user entered.
      * @param {string} newSetting The setting the user chose.
      */
     finishEdit: function(newPattern, newSetting) {
       this.resetInput();
-      chrome.send('setException',
-                  [this.contentType, this.mode, newPattern, newSetting]);
+      // We're adding a new entry, update the model once that is done.
+      chrome.send('setManualException', [newPattern, newSetting, true]);
     },
   };
 
   /**
+   * Compares two elements in the list. Removes the schema if present and then
+   * compares the two strings.
+   * @param {string} a First element to compare.
+   * @param {string} b Second element to compare.
+   * @return {int} Result of comparison between a and b.
+   */
+  function comparePatterns(a, b) {
+    // Remove the schema (part before ://) if any.
+    var stripString = function(str) {
+      var indexStr = str.indexOf('://');
+      if (indexStr != -1)
+        return str.slice(indexStr + 3);
+      return str;
+    };
+    if (a)
+      a = stripString(a['pattern']);
+    if (b)
+      b = stripString(b['pattern']);
+    return this.dataModel.defaultValuesCompareFunction(a, b);
+  }
+
+  /**
    * Creates a new exceptions list.
    *
    * @constructor
    * @extends {cr.ui.List}
    */
   var ExceptionsList = cr.ui.define('list');
 
   ExceptionsList.prototype = {
     __proto__: InlineEditableItemList.prototype,
 
     /**
      * Called when an element is decorated as a list.
      */
     decorate: function() {
       InlineEditableItemList.prototype.decorate.call(this);
 
       this.classList.add('settings-list');
 
-      for (var parentNode = this.parentNode; parentNode;
-           parentNode = parentNode.parentNode) {
-        if (parentNode.hasAttribute('contentType')) {
-          this.contentType = parentNode.getAttribute('contentType');
-          break;
-        }
-      }
-
-      this.mode = this.getAttribute('mode');
-
-      // Whether the exceptions in this list allow an 'Ask every time' option.
-      this.enableAskOption = this.contentType == 'plugins';
-
       this.autoExpands = true;
       this.reset();
     },
 
     /**
      * Creates an item to go in the list.
      *
      * @param {Object} entry The element from the data model for this row.
      */
     createItem: function(entry) {
       if (entry) {
-        return new ExceptionsListItem(this.contentType,
-                                      this.mode,
-                                      this.enableAskOption,
-                                      entry);
+        return new ExceptionsListItem(entry);
       } else {
-        var addRowItem = new ExceptionsAddRowListItem(this.contentType,
-                                                      this.mode,
-                                                      this.enableAskOption);
+        var addRowItem = new ExceptionsAddRowListItem();
         addRowItem.deletable = false;
         return addRowItem;
       }
     },
 
     /**
      * Sets the exceptions in the js model.
      *
      * @param {Object} entries A list of dictionaries of values, each dictionary
      *     represents an exception.
      */
-    setExceptions: function(entries) {
-      var deleteCount = this.dataModel.length;
-
-      if (this.isEditable()) {
-        // We don't want to remove the Add New Exception row.
-        deleteCount = deleteCount - 1;
-      }
+    setManualExceptions: function(entries) {
+      // We don't want to remove the Add New Exception row.
+      var deleteCount = this.dataModel.length - 1;
 
       var args = [0, deleteCount];
       args.push.apply(args, entries);
       this.dataModel.splice.apply(this.dataModel, args);
     },
 
     /**
      * The browser has finished checking a pattern for validity. Update the list
      * item to reflect this.
      *
      * @param {string} pattern The pattern.
      * @param {bool} valid Whether said pattern is valid in the context of a
      *     content exception setting.
      */
     patternValidityCheckComplete: function(pattern, valid) {
       var listItems = this.items;
       for (var i = 0; i < listItems.length; i++) {
         var listItem = listItems[i];
         // Don't do anything for messages for the item if it is not the intended
         // recipient, or if the response is stale (i.e. the input value has
         // changed since we sent the request to analyze it).
         if (pattern == listItem.input.value)
           listItem.setPatternValid(valid);
       }
     },
 
     /**
-     * Returns whether the rows are editable in this list.
-     */
-    isEditable: function() {
-      // Exceptions of the following lists are not editable for now.
-      return !(this.contentType == 'notifications' ||
-               this.contentType == 'location' ||
-               this.contentType == 'fullscreen' ||
-               this.contentType == 'media-stream');
-    },
-
-    /**
      * Removes all exceptions from the js model.
      */
     reset: function() {
-      if (this.isEditable()) {
-        // The null creates the Add New Exception row.
-        this.dataModel = new ArrayDataModel([null]);
-      } else {
-        this.dataModel = new ArrayDataModel([]);
-      }
+      // The null creates the Add New Exception row.
+      this.dataModel = new ArrayDataModel([null]);
+
+      // Set the initial sort order.
+      this.dataModel.setCompareFunction('pattern', comparePatterns.bind(this));
+      this.dataModel.sort('pattern', 'asc');
     },
 
     /** @override */
     deleteItemAtIndex: function(index) {
       var listItem = this.getListItemByIndex(index);
       if (!listItem.deletable)
         return;
 
       var dataItem = listItem.dataItem;
-      var args = [listItem.contentType];
-      if (listItem.contentType == 'notifications')
-        args.push(dataItem.origin, dataItem.setting);
-      else
-        args.push(listItem.mode, dataItem.origin, dataItem.embeddingOrigin);
+      var args = [];
+      args.push(dataItem.pattern);
 
-      chrome.send('removeException', args);
+      chrome.send('removeManualException', args);
     },
   };
 
   var OptionsPage = options.OptionsPage;
 
   /**
    * Encapsulated handling of content settings list subpage.
-   *
    * @constructor
+   * @class
    */
-  function ContentSettingsExceptionsArea() {
-    OptionsPage.call(this, 'contentExceptions',
-                     loadTimeData.getString('contentSettingsPageTabTitle'),
-                     'content-settings-exceptions-area');
+  function ManagedUserSettingsExceptionsArea() {
+    OptionsPage.call(this, 'manualExceptions',
+                     loadTimeData.getString('managedUserSettingsPageTabTitle'),
+                     'managed-user-exceptions-area');
   }
 
-  cr.addSingletonGetter(ContentSettingsExceptionsArea);
+  cr.addSingletonGetter(ManagedUserSettingsExceptionsArea);
 
-  ContentSettingsExceptionsArea.prototype = {
+  ManagedUserSettingsExceptionsArea.prototype = {
     __proto__: OptionsPage.prototype,
 
     initializePage: function() {
       OptionsPage.prototype.initializePage.call(this);
 
       var exceptionsLists = this.pageDiv.querySelectorAll('list');
       for (var i = 0; i < exceptionsLists.length; i++) {
-        options.contentSettings.ExceptionsList.decorate(exceptionsLists[i]);
+        options.managedUserSettings.ExceptionsList.decorate(exceptionsLists[i]);
       }
 
-      ContentSettingsExceptionsArea.hideOTRLists(false);
-
-      // If the user types in the URL without a hash, show just cookies.
-      this.showList('cookies');
-
-      $('content-settings-exceptions-overlay-confirm').onclick =
+      $('managed-user-settings-exceptions-overlay-confirm').onclick =
           OptionsPage.closeOverlay.bind(OptionsPage);
     },
-
-    /**
-     * Shows one list and hides all others.
-     *
-     * @param {string} type The content type.
-     */
-    showList: function(type) {
-      var header = this.pageDiv.querySelector('h1');
-      header.textContent = loadTimeData.getString(type + '_header');
-
-      var divs = this.pageDiv.querySelectorAll('div[contentType]');
-      for (var i = 0; i < divs.length; i++) {
-        if (divs[i].getAttribute('contentType') == type)
-          divs[i].hidden = false;
-        else
-          divs[i].hidden = true;
-      }
-
-      var mediaHeader = this.pageDiv.querySelector('.media-header');
-      mediaHeader.hidden = type != 'media-stream';
-    },
-
-    /**
-     * Called after the page has been shown. Show the content type for the
-     * location's hash.
-     */
-    didShowPage: function() {
-      var hash = location.hash;
-      if (hash)
-        this.showList(hash.slice(1));
-    },
-  };
-
-  /**
-   * Called when the last incognito window is closed.
-   */
-  ContentSettingsExceptionsArea.OTRProfileDestroyed = function() {
-    this.hideOTRLists(true);
-  };
-
-  /**
-   * Hides the incognito exceptions lists and optionally clears them as well.
-   * @param {boolean} clear Whether to clear the lists.
-   */
-  ContentSettingsExceptionsArea.hideOTRLists = function(clear) {
-    var otrLists = document.querySelectorAll('list[mode=otr]');
-
-    for (var i = 0; i < otrLists.length; i++) {
-      otrLists[i].parentNode.hidden = true;
-      if (clear)
-        otrLists[i].reset();
-    }
   };
 
   return {
     ExceptionsListItem: ExceptionsListItem,
     ExceptionsAddRowListItem: ExceptionsAddRowListItem,
     ExceptionsList: ExceptionsList,
-    ContentSettingsExceptionsArea: ContentSettingsExceptionsArea,
+    ManagedUserSettingsExceptionsArea: ManagedUserSettingsExceptionsArea,
   };
 });