Options2: Pull the trigger.

chrome/browser/resources/options2/clear_browser_data_overlay.js

+// 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', function() {
+  var OptionsPage = options.OptionsPage;
+
+  /**
+   * ClearBrowserDataOverlay class
+   * Encapsulated handling of the 'Clear Browser Data' overlay page.
+   * @class
+   */
+  function ClearBrowserDataOverlay() {
+    OptionsPage.call(this, 'clearBrowserData',
+                     templateData.clearBrowserDataOverlayTabTitle,
+                     'clearBrowserDataOverlay');
+  }
+
+  cr.addSingletonGetter(ClearBrowserDataOverlay);
+
+  ClearBrowserDataOverlay.prototype = {
+    // Inherit ClearBrowserDataOverlay from OptionsPage.
+    __proto__: OptionsPage.prototype,
+
+    /**
+     * Initialize the page.
+     */
+    initializePage: function() {
+      // Call base class implementation to starts preference initialization.
+      OptionsPage.prototype.initializePage.call(this);
+
+      var f = this.updateCommitButtonState_.bind(this);
+      var types = ['browser.clear_data.browsing_history',
+                   'browser.clear_data.download_history',
+                   'browser.clear_data.cache',
+                   'browser.clear_data.cookies',
+                   'browser.clear_data.passwords',
+                   'browser.clear_data.form_data'];
+      types.forEach(function(type) {
+          Preferences.getInstance().addEventListener(type, f);
+      });
+
+      var checkboxes = document.querySelectorAll(
+          '#cbdContentArea input[type=checkbox]');
+      for (var i = 0; i < checkboxes.length; i++) {
+        checkboxes[i].onclick = f;
+      }
+      this.updateCommitButtonState_();
+
+      $('clearBrowserDataDismiss').onclick = function(event) {
+        ClearBrowserDataOverlay.dismiss();
+      };
+      $('clearBrowserDataCommit').onclick = function(event) {
+        chrome.send('performClearBrowserData');
+      };
+    },
+
+    // Set the enabled state of the commit button.
+    updateCommitButtonState_: function() {
+      var checkboxes = document.querySelectorAll(
+          '#cbdContentArea input[type=checkbox]');
+      var isChecked = false;
+      for (var i = 0; i < checkboxes.length; i++) {
+        if (checkboxes[i].checked) {
+          isChecked = true;
+          break;
+        }
+      }
+      $('clearBrowserDataCommit').disabled = !isChecked;
+    },
+  };
+
+  //
+  // Chrome callbacks
+  //
+  ClearBrowserDataOverlay.setClearingState = function(state) {
+    $('deleteBrowsingHistoryCheckbox').disabled = state;
+    $('deleteDownloadHistoryCheckbox').disabled = state;
+    $('deleteCacheCheckbox').disabled = state;
+    $('deleteCookiesCheckbox').disabled = state;
+    $('deletePasswordsCheckbox').disabled = state;
+    $('deleteFormDataCheckbox').disabled = state;
+    $('clearBrowserDataTimePeriod').disabled = state;
+    $('cbdThrobber').style.visibility = state ? 'visible' : 'hidden';
+
+    if (state)
+      $('clearBrowserDataCommit').disabled = true;
+    else
+      ClearBrowserDataOverlay.getInstance().updateCommitButtonState_();
+  };
+
+  ClearBrowserDataOverlay.doneClearing = function() {
+    // The delay gives the user some feedback that the clearing
+    // actually worked. Otherwise the dialog just vanishes instantly in most
+    // cases.
+    window.setTimeout(function() {
+      ClearBrowserDataOverlay.dismiss();
+    }, 200);
+  };
+
+  ClearBrowserDataOverlay.dismiss = function() {
+    OptionsPage.closeOverlay();
+    this.setClearingState(false);
+  };
+
+  // Export
+  return {
+    ClearBrowserDataOverlay: ClearBrowserDataOverlay
+  };
+});