Options2: Pull the trigger.

chrome/browser/resources/options2/content_settings_exceptions_area.js

Index: chrome/browser/resources/options2/content_settings_exceptions_area.js
diff --git a/chrome/browser/resources/options2/content_settings_exceptions_area.js b/chrome/browser/resources/options2/content_settings_exceptions_area.js
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+// Copyright (c) 2011 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() {
+  const InlineEditableItemList = options.InlineEditableItemList;
+  const InlineEditableItem = options.InlineEditableItem;
+  const 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) {
+    var el = cr.doc.createElement('div');
+    el.mode = mode;
+    el.contentType = contentType;
+    el.enableAskOption = enableAskOption;
+    el.dataItem = exception;
+    el.__proto__ = ExceptionsListItem.prototype;
+    el.decorate();
+
+    return el;
+  }
+
+  ExceptionsListItem.prototype = {
+    __proto__: InlineEditableItem.prototype,
+
+    /**
+     * Called when an element is decorated as a list item.
+     */
+    decorate: function() {
+      InlineEditableItem.prototype.decorate.call(this);
+
+      this.isPlaceholder = !this.pattern;
+      var patternCell = this.createEditableTextCell(this.pattern);
+      patternCell.className = 'exception-pattern';
+      patternCell.classList.add('weakrtl');
+      this.contentElement.appendChild(patternCell);
+      if (this.pattern)
+        this.patternLabel = patternCell.querySelector('.static-text');
+      var input = patternCell.querySelector('input');
+
+      // TODO(stuartmorgan): Create an createEditableSelectCell abstracting
+      // this code.
+      // Setting label for display mode. |pattern| will be null for the 'add new
+      // exception' row.
+      if (this.pattern) {
+        var settingLabel = cr.doc.createElement('span');
+        settingLabel.textContent = this.settingForDisplay();
+        settingLabel.className = 'exception-setting';
+        settingLabel.setAttribute('displaymode', 'static');
+        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 = templateData.allowException;
+      optionAllow.value = 'allow';
+      select.appendChild(optionAllow);
+
+      if (this.enableAskOption) {
+        var optionAsk = cr.doc.createElement('option');
+        optionAsk.textContent = templateData.askException;
+        optionAsk.value = 'ask';
+        select.appendChild(optionAsk);
+      }
+
+      if (this.contentType == 'cookies') {
+        var optionSession = cr.doc.createElement('option');
+        optionSession.textContent = templateData.sessionException;
+        optionSession.value = 'session';
+        select.appendChild(optionSession);
+      }
+
+      if (this.contentType != 'fullscreen') {
+        var optionBlock = cr.doc.createElement('option');
+        optionBlock.textContent = templateData.blockException;
+        optionBlock.value = 'block';
+        select.appendChild(optionBlock);
+      }
+
+      this.contentElement.appendChild(select);
+      select.className = 'exception-setting';
+      if (this.pattern)
+        select.setAttribute('displaymode', 'edit');
+
+      // 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 and geolocation is disabled for now.
+      if (this.contentType == 'notifications' ||
+          this.contentType == 'location') {
+        this.editable = false;
+      }
+
+      // If the source of the content setting exception is not the user
+      // preference, then the content settings exception is managed and the user
+      // can't edit it.
+      if (this.dataItem.source  &&
+          this.dataItem.source != 'preference') {
+        this.setAttribute('managedby', this.dataItem.source);
+        this.deletable = false;
+        this.editable = false;
+      }
+
+      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]);
+      };
+
+      // Listen for edit events.
+      this.addEventListener('canceledit', this.onEditCancelled_);
+      this.addEventListener('commitedit', this.onEditCommitted_);
+    },
+
+    /**
+     * The pattern (e.g., a URL) for the exception.
+     * @type {string}
+     */
+    get pattern() {
+      return this.dataItem['displayPattern'];
+    },
+    set pattern(pattern) {
+      this.dataItem['displayPattern'] = 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.
+     * @type {string}
+     */
+    settingForDisplay: function() {
+      var setting = this.setting;
+      if (setting == 'allow')
+        return templateData.allowException;
+      else if (setting == 'block')
+        return templateData.blockException;
+      else if (setting == 'ask')
+        return templateData.askException;
+      else if (setting == 'session')
+        return templateData.sessionException;
+    },
+
+    /**
+     * 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.
+     */
+    setPatternValid: function(valid) {
+      if (valid || !this.input.value)
+        this.input.setCustomValidity('');
+      else
+        this.input.setCustomValidity(' ');
+      this.inputIsValid = valid;
+      this.inputValidityKnown = true;
+    },
+
+    /**
+     * Set the <input> to its original contents. Used when the user quits
+     * editing.
+     */
+    resetInput: function() {
+      this.input.value = this.pattern;
+    },
+
+    /**
+     * Copy the data model values to the editable nodes.
+     */
+    updateEditables: function() {
+      this.resetInput();
+
+      var settingOption =
+          this.select.querySelector('[value=\'' + this.setting + '\']');
+      if (settingOption)
+        settingOption.selected = true;
+    },
+
+    /** @inheritDoc */
+    get currentInputIsValid() {
+      return this.inputValidityKnown && this.inputIsValid;
+    },
+
+    /** @inheritDoc */
+    get hasBeenEdited() {
+      var livePattern = this.input.value;
+      var liveSetting = this.select.value;
+      return livePattern != this.pattern || liveSetting != this.setting;
+    },
+
+    /**
+     * Called when committing an edit.
+     * @param {Event} e The end event.
+     * @private
+     */
+    onEditCommitted_: function(e) {
+      var newPattern = this.input.value;
+      var newSetting = this.select.value;
+
+      this.finishEdit(newPattern, newSetting);
+    },
+
+    /**
+     * Called when cancelling an edit; resets the control states.
+     * @param {Event} e The cancel event.
+     * @private
+     */
+    onEditCancelled_: function() {
+      this.updateEditables();
+      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.patternLabel.textContent = newPattern;
+      this.settingLabel.textContent = this.settingForDisplay();
+      var oldPattern = this.pattern;
+      this.pattern = newPattern;
+      this.setting = newSetting;
+
+      // TODO(estade): this will need to be updated if geolocation/notifications
+      // become editable.
+      if (oldPattern != newPattern) {
+        chrome.send('removeException',
+                    [this.contentType, this.mode, oldPattern]);
+      }
+
+      chrome.send('setException',
+                  [this.contentType, this.mode, newPattern, newSetting]);
+    }
+  };
+
+  /**
+   * 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) {
+    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 = templateData.addNewExceptionInstructions;
+
+      // Do we always want a default of allow?
+      this.setting = 'allow';
+    },
+
+    /**
+     * Clear the <input> and let the placeholder text show again.
+     */
+    resetInput: function() {
+      this.input.value = '';
+    },
+
+    /** @inheritDoc */
+    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]);
+    },
+  };
+
+  /**
+   * 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');
+
+      var exceptionList = this;
+
+      // Whether the exceptions in this list allow an 'Ask every time' option.
+      this.enableAskOption = (this.contentType == 'plugins' &&
+                              templateData.enable_click_to_play);
+
+      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);
+      } else {
+        var addRowItem = new ExceptionsAddRowListItem(this.contentType,
+                                                      this.mode,
+                                                      this.enableAskOption);
+        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;
+      }
+
+      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() {
+      // Editing notifications and geolocation is disabled for now.
+      return !(this.contentType == 'notifications' ||
+               this.contentType == 'location' ||
+               this.contentType == 'fullscreen');
+    },
+
+    /**
+     * 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([]);
+      }
+    },
+
+    /** @inheritDoc */
+    deleteItemAtIndex: function(index) {
+      var listItem = this.getListItemByIndex(index);
+      if (listItem.undeletable)
+        return;
+
+      var dataItem = listItem.dataItem;
+      var args = [listItem.contentType];
+      if (listItem.contentType == 'location')
+        args.push(dataItem['origin'], dataItem['embeddingOrigin']);
+      else if (listItem.contentType == 'notifications')
+        args.push(dataItem['origin'], dataItem['setting']);
+      else
+        args.push(listItem.mode, listItem.pattern);
+
+      chrome.send('removeException', args);
+    },
+  };
+
+  var OptionsPage = options.OptionsPage;
+
+  /**
+   * Encapsulated handling of content settings list subpage.
+   * @constructor
+   */
+  function ContentSettingsExceptionsArea() {
+    OptionsPage.call(this, 'contentExceptions',
+                     templateData.contentSettingsPageTabTitle,
+                     'content-settings-exceptions-area');
+  }
+
+  cr.addSingletonGetter(ContentSettingsExceptionsArea);
+
+  ContentSettingsExceptionsArea.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]);
+      }
+
+      ContentSettingsExceptionsArea.hideOTRLists();
+
+      // If the user types in the URL without a hash, show just cookies.
+      this.showList('cookies');
+    },
+
+    /**
+     * Shows one list and hides all others.
+     * @param {string} type The content type.
+     */
+    showList: function(type) {
+      var header = this.pageDiv.querySelector('h1');
+      header.textContent = templateData[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;
+      }
+    },
+
+    /**
+     * 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();
+  };
+
+  /**
+   * Clears and hides the incognito exceptions lists.
+   */
+  ContentSettingsExceptionsArea.hideOTRLists = function() {
+    var otrLists = document.querySelectorAll('list[mode=otr]');
+
+    for (var i = 0; i < otrLists.length; i++) {
+      otrLists[i].reset();
+      otrLists[i].parentNode.hidden = true;
+    }
+  };
+
+  return {
+    ExceptionsListItem: ExceptionsListItem,
+    ExceptionsAddRowListItem: ExceptionsAddRowListItem,
+    ExceptionsList: ExceptionsList,
+    ContentSettingsExceptionsArea: ContentSettingsExceptionsArea,
+  };
+});