[DevTools] Separate old Application tab code

third_party/WebKit/Source/devtools/front_end/resources/ApplicationPanelSidebar.js

 /*
  * Copyright (C) 2007, 2008, 2010 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  * Copyright (C) 2013 Samsung Electronics. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 13 matching lines @@
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 /**
  * @implements {SDK.TargetManager.Observer}
  * @unrestricted
  */
-Resources.ResourcesPanel = class extends UI.PanelWithSidebar {
-  constructor() {
-    super('resources');
-    this.registerRequiredCSS('resources/resourcesPanel.css');
+Resources.ApplicationPanelSidebar = class extends Common.Object {
+  /**
+   * @param {!Resources.ResourcesPanel} panel
+   */
+  constructor(panel) {
+    super();
 
-    this._resourcesLastSelectedItemSetting = Common.settings.createSetting('resourcesLastSelectedItem', {});
+    this._panel = panel;
 
     this._sidebarTree = new UI.TreeOutlineInShadow();
     this._sidebarTree.element.classList.add('resources-sidebar');
     this._sidebarTree.registerRequiredCSS('resources/resourcesSidebar.css');
     this._sidebarTree.element.classList.add('filter-all');
-    this.panelSidebarElement().appendChild(this._sidebarTree.element);
 
     this._applicationTreeElement = this._addSidebarSection(Common.UIString('Application'));
     this._manifestTreeElement = new Resources.AppManifestTreeElement(this);
     this._applicationTreeElement.appendChild(this._manifestTreeElement);
     this.serviceWorkersTreeElement = new Resources.ServiceWorkersTreeElement(this);
     this._applicationTreeElement.appendChild(this.serviceWorkersTreeElement);
     var clearStorageTreeElement = new Resources.ClearStorageTreeElement(this);
     this._applicationTreeElement.appendChild(clearStorageTreeElement);
 
     var storageTreeElement = this._addSidebarSection(Common.UIString('Storage'));
     this.localStorageListTreeElement =
-        new Resources.StorageCategoryTreeElement(this, Common.UIString('Local Storage'), 'LocalStorage');
+        new Resources.StorageCategoryTreeElement(panel, Common.UIString('Local Storage'), 'LocalStorage');
     var localStorageIcon = UI.Icon.create('mediumicon-table', 'resource-tree-item');
     this.localStorageListTreeElement.setLeadingIcons([localStorageIcon]);
 
     storageTreeElement.appendChild(this.localStorageListTreeElement);
     this.sessionStorageListTreeElement =
-        new Resources.StorageCategoryTreeElement(this, Common.UIString('Session Storage'), 'SessionStorage');
+        new Resources.StorageCategoryTreeElement(panel, Common.UIString('Session Storage'), 'SessionStorage');
     var sessionStorageIcon = UI.Icon.create('mediumicon-table', 'resource-tree-item');
     this.sessionStorageListTreeElement.setLeadingIcons([sessionStorageIcon]);
 
     storageTreeElement.appendChild(this.sessionStorageListTreeElement);
-    this.indexedDBListTreeElement = new Resources.IndexedDBTreeElement(this);
+    this.indexedDBListTreeElement = new Resources.IndexedDBTreeElement(panel);
     storageTreeElement.appendChild(this.indexedDBListTreeElement);
     this.databasesListTreeElement =
-        new Resources.StorageCategoryTreeElement(this, Common.UIString('Web SQL'), 'Databases');
+        new Resources.StorageCategoryTreeElement(panel, Common.UIString('Web SQL'), 'Databases');
     var databaseIcon = UI.Icon.create('mediumicon-database', 'resource-tree-item');
     this.databasesListTreeElement.setLeadingIcons([databaseIcon]);
 
     storageTreeElement.appendChild(this.databasesListTreeElement);
-    this.cookieListTreeElement = new Resources.StorageCategoryTreeElement(this, Common.UIString('Cookies'), 'Cookies');
+    this.cookieListTreeElement = new Resources.StorageCategoryTreeElement(panel, Common.UIString('Cookies'), 'Cookies');
     var cookieIcon = UI.Icon.create('mediumicon-cookie', 'resource-tree-item');
     this.cookieListTreeElement.setLeadingIcons([cookieIcon]);
     storageTreeElement.appendChild(this.cookieListTreeElement);
 
     var cacheTreeElement = this._addSidebarSection(Common.UIString('Cache'));
-    this.cacheStorageListTreeElement = new Resources.ServiceWorkerCacheTreeElement(this);
+    this.cacheStorageListTreeElement = new Resources.ServiceWorkerCacheTreeElement(panel);
     cacheTreeElement.appendChild(this.cacheStorageListTreeElement);
     this.applicationCacheListTreeElement =
-        new Resources.StorageCategoryTreeElement(this, Common.UIString('Application Cache'), 'ApplicationCache');
+        new Resources.StorageCategoryTreeElement(panel, Common.UIString('Application Cache'), 'ApplicationCache');
     var applicationCacheIcon = UI.Icon.create('mediumicon-table', 'resource-tree-item');
     this.applicationCacheListTreeElement.setLeadingIcons([applicationCacheIcon]);
 
     cacheTreeElement.appendChild(this.applicationCacheListTreeElement);
 
-    this._resourcesSection = new Resources.ResourcesSection(this, this._addSidebarSection(Common.UIString('Frames')));
-
-    var mainContainer = new UI.VBox();
-    this.storageViews = mainContainer.element.createChild('div', 'vbox flex-auto');
-    this._storageViewToolbar = new UI.Toolbar('resources-toolbar', mainContainer.element);
-    this.splitWidget().setMainWidget(mainContainer);
+    this._resourcesSection = new Resources.ResourcesSection(panel, this._addSidebarSection(Common.UIString('Frames')));
 
     /** @type {!Map.<!Resources.Database, !Object.<string, !Resources.DatabaseTableView>>} */
     this._databaseTableViews = new Map();
     /** @type {!Map.<!Resources.Database, !Resources.DatabaseQueryView>} */
     this._databaseQueryViews = new Map();
     /** @type {!Map.<!Resources.Database, !Resources.DatabaseTreeElement>} */
     this._databaseTreeElements = new Map();
     /** @type {!Map.<!Resources.DOMStorage, !Resources.DOMStorageTreeElement>} */
     this._domStorageTreeElements = new Map();
     /** @type {!Object.<string, boolean>} */
     this._domains = {};
 
     /** @type {?Resources.DOMStorageItemsView} */
     this._domStorageView = null;
     /** @type {?Resources.CookieItemsView} */
     this._cookieView = null;
 
-    this.panelSidebarElement().addEventListener('mousemove', this._onmousemove.bind(this), false);
-    this.panelSidebarElement().addEventListener('mouseleave', this._onmouseleave.bind(this), false);
+    this._sidebarTree.contentElement.addEventListener('mousemove', this._onmousemove.bind(this), false);
+    this._sidebarTree.contentElement.addEventListener('mouseleave', this._onmouseleave.bind(this), false);
 
     SDK.targetManager.observeTargets(this);
     SDK.targetManager.addModelListener(
         SDK.ResourceTreeModel, SDK.ResourceTreeModel.Events.FrameNavigated, this._frameNavigated, this);
   }
 
   /**
-   * @return {!Resources.ResourcesPanel}
+   * @return {!UI.TreeOutline}
    */
-  static _instance() {
-    return /** @type {!Resources.ResourcesPanel} */ (self.runtime.sharedInstance(Resources.ResourcesPanel));
+  sidebarTree() {
+    return this._sidebarTree;
   }
 
   /**
    * @param {string} title
    * @return {!UI.TreeElement}
    */
   _addSidebarSection(title) {
     var treeElement = new UI.TreeElement(title, true);
     treeElement.listItemElement.classList.add('storage-group-list-item');
     treeElement.setCollapsible(false);
@@ skipping 41 matching lines @@
       resourceTreeModel.removeEventListener(SDK.ResourceTreeModel.Events.CachedResourcesLoaded, this._initialize, this);
       resourceTreeModel.removeEventListener(
           SDK.ResourceTreeModel.Events.WillLoadCachedResources, this._resetWithFrames, this);
     }
     this._databaseModel.off(Resources.DatabaseModel.DatabaseAddedEvent, this._databaseAdded, this);
     this._databaseModel.off(Resources.DatabaseModel.DatabasesRemovedEvent, this._resetWebSQL, this);
 
     this._resetWithFrames();
   }
 
-  /**
-   * @override
-   */
-  focus() {
-    this._sidebarTree.focus();
-  }
-
   _initialize() {
     for (var frame of SDK.ResourceTreeModel.frames())
       this._addCookieDocument(frame);
     this._databaseModel.enable();
 
     var indexedDBModel = Resources.IndexedDBModel.fromTarget(this._target);
     if (indexedDBModel)
       indexedDBModel.enable();
 
     var cacheStorageModel = SDK.ServiceWorkerCacheModel.fromTarget(this._target);
     if (cacheStorageModel)
       cacheStorageModel.enable();
     var resourceTreeModel = SDK.ResourceTreeModel.fromTarget(this._target);
     if (resourceTreeModel)
       this._populateApplicationCacheTree(resourceTreeModel);
     var domStorageModel = Resources.DOMStorageModel.fromTarget(this._target);
     if (domStorageModel)
       this._populateDOMStorageTree(domStorageModel);
     this.indexedDBListTreeElement._initialize();
-    this.cacheStorageListTreeElement._initialize();
+    this.cacheStorageListTreeElement._initialize(this._target);
     this._initDefaultSelection();
   }
 
   _initDefaultSelection() {
-    var itemURL = this._resourcesLastSelectedItemSetting.get();
+    var itemURL = this._panel.lastSelectedItemURL();
     if (itemURL) {
       var rootElement = this._sidebarTree.rootElement();
       for (var treeElement = rootElement.firstChild(); treeElement;
            treeElement = treeElement.traverseNextTreeElement(false, rootElement, true)) {
         if (treeElement.itemURL === itemURL) {
           treeElement.revealAndSelect(true);
           return;
         }
       }
     }
     this._manifestTreeElement.select();
   }
 
   _resetWithFrames() {
     this._resourcesSection.reset();
     this._reset();
   }
 
   _resetWebSQL() {
-    if (this.visibleView instanceof Resources.DatabaseQueryView ||
-        this.visibleView instanceof Resources.DatabaseTableView) {
-      this.visibleView.detach();
-      delete this.visibleView;
-    }
-
     var queryViews = this._databaseQueryViews.valuesArray();
     for (var i = 0; i < queryViews.length; ++i) {
       queryViews[i].removeEventListener(
           Resources.DatabaseQueryView.Events.SchemaUpdated, this._updateDatabaseTables, this);
     }
     this._databaseTableViews.clear();
     this._databaseQueryViews.clear();
     this._databaseTreeElements.clear();
     this.databasesListTreeElement.removeChildren();
     this.databasesListTreeElement.setExpandable(false);
   }
 
   _resetDOMStorage() {
-    if (this.visibleView === this._domStorageView) {
-      this.visibleView.detach();
-      delete this.visibleView;
-    }
-
     this._domStorageTreeElements.clear();
     this.localStorageListTreeElement.removeChildren();
     this.sessionStorageListTreeElement.removeChildren();
   }
 
   _resetCookies() {
-    if (this.visibleView instanceof Resources.CookieItemsView) {
-      this.visibleView.detach();
-      delete this.visibleView;
-    }
     this.cookieListTreeElement.removeChildren();
   }
 
   _resetCacheStorage() {
-    if (this.visibleView instanceof Resources.ServiceWorkerCacheView) {
-      this.visibleView.detach();
-      delete this.visibleView;
-    }
     this.cacheStorageListTreeElement.removeChildren();
     this.cacheStorageListTreeElement.setExpandable(false);
   }
 
   _resetAppCache() {
     for (var frameId of Object.keys(this._applicationCacheFrameElements))
       this._applicationCacheFrameManifestRemoved({data: frameId});
     this.applicationCacheListTreeElement.setExpandable(false);
   }
 
   _reset() {
     this._domains = {};
     this._resetWebSQL();
     this._resetDOMStorage();
     this._resetCookies();
     this._resetCacheStorage();
     // No need to this._resetAppCache.
 
-    if ((this.visibleView instanceof SourceFrame.ResourceSourceFrame) ||
-        (this.visibleView instanceof SourceFrame.ImageView) || (this.visibleView instanceof SourceFrame.FontView)) {
-      this.visibleView.detach();
-      delete this.visibleView;
-    }
-
-    this._storageViewToolbar.removeToolbarItems();
+    this._panel.resetView();
 
     if (this._sidebarTree.selectedTreeElement)
       this._sidebarTree.selectedTreeElement.deselect();
   }
 
   _frameNavigated(event) {
     var frame = event.data;
 
     if (!frame.parentFrame)
       this._reset();
@@ skipping 82 matching lines @@
       this._showDatabase(database);
       this._databaseTreeElements.get(database).select();
     }
   }
 
   /**
    * @param {!Resources.DOMStorage} domStorage
    */
   selectDOMStorage(domStorage) {
     if (domStorage) {
-      this._showDOMStorage(domStorage);
+      this.showDOMStorage(domStorage);
       this._domStorageTreeElements.get(domStorage).select();
     }
   }
 
   /**
    * @param {!SDK.Resource} resource
    * @param {number=} line
    * @param {number=} column
    * @return {boolean}
    */
@@ skipping 49 matching lines @@
         view.addEventListener(Resources.DatabaseQueryView.Events.SchemaUpdated, this._updateDatabaseTables, this);
       }
     }
 
     this._innerShowView(view);
   }
 
   /**
    * @param {!Resources.DOMStorage} domStorage
    */
-  _showDOMStorage(domStorage) {
+  showDOMStorage(domStorage) {
     if (!domStorage)
       return;
 
     if (!this._domStorageView)
       this._domStorageView = new Resources.DOMStorageItemsView(domStorage);
     else
       this._domStorageView.setStorage(domStorage);
     this._innerShowView(this._domStorageView);
   }
 
@@ skipping 31 matching lines @@
     this._innerShowView(this._applicationCacheViews[frameId]);
   }
 
   /**
    *  @param {!UI.Widget} view
    */
   showFileSystem(view) {
     this._innerShowView(view);
   }
 
-  showCategoryView(categoryName) {
-    if (!this._categoryView)
-      this._categoryView = new Resources.StorageCategoryView();
-    this._categoryView.setText(categoryName);
-    this._innerShowView(this._categoryView);
-  }
-
   _innerShowView(view) {
-    if (this.visibleView === view)
-      return;
-
-    if (this.visibleView)
-      this.visibleView.detach();
-
-    view.show(this.storageViews);
-    this.visibleView = view;
-
-    this._storageViewToolbar.removeToolbarItems();
-    var toolbarItems = (view instanceof UI.SimpleView && view.syncToolbarItems()) || [];
-    for (var i = 0; i < toolbarItems.length; ++i)
-      this._storageViewToolbar.appendToolbarItem(toolbarItems[i]);
-    this._storageViewToolbar.element.classList.toggle('hidden', !toolbarItems.length);
-  }
-
-  closeVisibleView() {
-    if (!this.visibleView)
-      return;
-    this.visibleView.detach();
-    delete this.visibleView;
+    this._panel.showView(view);
   }
 
   _updateDatabaseTables(event) {
     var database = event.data;
 
     if (!database)
       return;
 
     var databasesTreeElement = this._databaseTreeElements.get(database);
     if (!databasesTreeElement)
       return;
 
     databasesTreeElement.invalidateChildren();
     var tableViews = this._databaseTableViews.get(database);
 
     if (!tableViews)
       return;
 
     var tableNamesHash = {};
-    var self = this;
+    var panel = this._panel;
     function tableNamesCallback(tableNames) {
       var tableNamesLength = tableNames.length;
       for (var i = 0; i < tableNamesLength; ++i)
         tableNamesHash[tableNames[i]] = true;
 
       for (var tableName in tableViews) {
         if (!(tableName in tableNamesHash)) {
-          if (self.visibleView === tableViews[tableName])
-            self.closeVisibleView();
+          if (panel.visibleView === tableViews[tableName])
+            panel.showView(null);
           delete tableViews[tableName];
         }
       }
     }
     database.getTableNames(tableNamesCallback);
   }
 
   /**
    * @param {!Resources.DOMStorageModel} domStorageModel
    */
@@ skipping 110 matching lines @@
 
   _onmouseleave(event) {
     if (this._previousHoveredElement) {
       this._previousHoveredElement.hovered = false;
       delete this._previousHoveredElement;
     }
   }
 };
 
 /**
- * @implements {Common.Revealer}
- * @unrestricted
- */
-Resources.ResourcesPanel.ResourceRevealer = class {
-  /**
-   * @override
-   * @param {!Object} resource
-   * @return {!Promise}
-   */
-  reveal(resource) {
-    if (!(resource instanceof SDK.Resource))
-      return Promise.reject(new Error('Internal error: not a resource'));
-    var panel = Resources.ResourcesPanel._instance();
-    return UI.viewManager.showView('resources').then(panel.showResource.bind(panel, resource));
-  }
-};
-
-/**
  * @unrestricted
  */
-Resources.BaseStorageTreeElement = class extends UI.TreeElement {
+Resources.BaseStorageTreeElement = class extends Resources.SidebarTreeElement {
   /**
-   * @param {!Resources.ResourcesPanel} storagePanel
+   * @param {!Resources.ApplicationPanelSidebar} storagePanel
    * @param {string} title
    * @param {boolean} expandable
    */
   constructor(storagePanel, title, expandable) {
-    super(title, expandable);
+    super(storagePanel._panel, title, expandable);
     this._storagePanel = storagePanel;
   }
-
-  /**
-   * @override
-   * @return {boolean}
-   */
-  onselect(selectedByUser) {
-    if (!selectedByUser)
-      return false;
-    var itemURL = this.itemURL;
-    if (itemURL)
-      this._storagePanel._resourcesLastSelectedItemSetting.set(itemURL);
-    return false;
-  }
-
-  /**
-   * @protected
-   * @param {?UI.Widget} view
-   */
-  showView(view) {
-    if (!view) {
-      this._storagePanel.visibleView.detach();
-      return;
-    }
-    this._storagePanel._innerShowView(view);
-  }
 };
 
 /**
- * @unrestricted
- */
-Resources.StorageCategoryTreeElement = class extends Resources.BaseStorageTreeElement {
-  /**
-   * @param {!Resources.ResourcesPanel} storagePanel
-   * @param {string} categoryName
-   * @param {string} settingsKey
-   */
-  constructor(storagePanel, categoryName, settingsKey) {
-    super(storagePanel, categoryName, false);
-    this._expandedSetting =
-        Common.settings.createSetting('resources' + settingsKey + 'Expanded', settingsKey === 'Frames');
-    this._categoryName = categoryName;
-  }
-
-  /**
-   * @return {!SDK.Target}
-   */
-  target() {
-    return this._storagePanel._target;
-  }
-
-  get itemURL() {
-    return 'category://' + this._categoryName;
-  }
-
-  /**
-   * @override
-   * @return {boolean}
-   */
-  onselect(selectedByUser) {
-    super.onselect(selectedByUser);
-    this._storagePanel.showCategoryView(this._categoryName);
-    return false;
-  }
-
-  /**
-   * @override
-   */
-  onattach() {
-    super.onattach();
-    if (this._expandedSetting.get())
-      this.expand();
-  }
-
-  /**
-   * @override
-   */
-  onexpand() {
-    this._expandedSetting.set(true);
-  }
-
-  /**
-   * @override
-   */
-  oncollapse() {
-    this._expandedSetting.set(false);
-  }
-};
-
-/**
  * @unrestricted
  */
 Resources.DatabaseTreeElement = class extends Resources.BaseStorageTreeElement {
   /**
-   * @param {!Resources.ResourcesPanel} storagePanel
+   * @param {!Resources.ApplicationPanelSidebar} storagePanel
    * @param {!Resources.Database} database
    */
   constructor(storagePanel, database) {
     super(storagePanel, database.name, true);
     this._database = database;
 
     var icon = UI.Icon.create('mediumicon-database', 'resource-tree-item');
     this.setLeadingIcons([icon]);
   }
 
@@ skipping 65 matching lines @@
  * @unrestricted
  */
 Resources.ServiceWorkerCacheTreeElement = class extends Resources.StorageCategoryTreeElement {
   /**
    * @param {!Resources.ResourcesPanel} storagePanel
    */
   constructor(storagePanel) {
     super(storagePanel, Common.UIString('Cache Storage'), 'CacheStorage');
     var icon = UI.Icon.create('mediumicon-database', 'resource-tree-item');
     this.setLeadingIcons([icon]);
+    /** @type {?SDK.Target} */
+    this._target = null;

[caseq, 2017/03/20 18:04:26]

Can we rather explicitly keep the model that we need?

[eostroukhov, 2017/03/20 19:28:01]

Done.

   }
 
-  _initialize() {
+  /**
+   * @param {?SDK.Target} target
+   */
+  _initialize(target) {
+    this._target = target;
     /** @type {!Array.<!Resources.SWCacheTreeElement>} */
     this._swCacheTreeElements = [];
-    var target = this._storagePanel._target;
     var model = target && SDK.ServiceWorkerCacheModel.fromTarget(target);
     if (model) {
       for (var cache of model.caches())
         this._addCache(model, cache);
     }
     SDK.targetManager.addModelListener(
         SDK.ServiceWorkerCacheModel, SDK.ServiceWorkerCacheModel.Events.CacheAdded, this._cacheAdded, this);
     SDK.targetManager.addModelListener(
         SDK.ServiceWorkerCacheModel, SDK.ServiceWorkerCacheModel.Events.CacheRemoved, this._cacheRemoved, this);
   }
 
   /**
    * @override
    */
   onattach() {
     super.onattach();
     this.listItemElement.addEventListener('contextmenu', this._handleContextMenuEvent.bind(this), true);
   }
 
   _handleContextMenuEvent(event) {
     var contextMenu = new UI.ContextMenu(event);
     contextMenu.appendItem(Common.UIString('Refresh Caches'), this._refreshCaches.bind(this));
     contextMenu.show();
   }
 
   _refreshCaches() {
-    var target = this._storagePanel._target;
-    if (target) {
-      var model = SDK.ServiceWorkerCacheModel.fromTarget(target);
+    if (this._target) {
+      var model = SDK.ServiceWorkerCacheModel.fromTarget(this._target);
       if (!model)
         return;
       model.refreshCacheNames();
     }
   }
 
   /**
    * @param {!Common.Event} event
    */
   _cacheAdded(event) {
     var cache = /** @type {!SDK.ServiceWorkerCacheModel.Cache} */ (event.data.cache);
     var model = /** @type {!SDK.ServiceWorkerCacheModel} */ (event.data.model);
     this._addCache(model, cache);
   }
 
   /**
    * @param {!SDK.ServiceWorkerCacheModel} model
    * @param {!SDK.ServiceWorkerCacheModel.Cache} cache
    */
   _addCache(model, cache) {
-    var swCacheTreeElement = new Resources.SWCacheTreeElement(this._storagePanel, model, cache);
+    var swCacheTreeElement = new Resources.SWCacheTreeElement(this.resourcesPanel, model, cache);
     this._swCacheTreeElements.push(swCacheTreeElement);
     this.appendChild(swCacheTreeElement);
   }
 
   /**
    * @param {!Common.Event} event
    */
   _cacheRemoved(event) {
     var cache = /** @type {!SDK.ServiceWorkerCacheModel.Cache} */ (event.data.cache);
     var model = /** @type {!SDK.ServiceWorkerCacheModel} */ (event.data.model);
@@ skipping 22 matching lines @@
     }
     if (index !== -1)
       return this._swCacheTreeElements[i];
     return null;
   }
 };
 
 /**
  * @unrestricted
  */
-Resources.SWCacheTreeElement = class extends Resources.BaseStorageTreeElement {
+Resources.SWCacheTreeElement = class extends Resources.SidebarTreeElement {
   /**
    * @param {!Resources.ResourcesPanel} storagePanel
    * @param {!SDK.ServiceWorkerCacheModel} model
    * @param {!SDK.ServiceWorkerCacheModel.Cache} cache
    */
   constructor(storagePanel, model, cache) {
     super(storagePanel, cache.cacheName + ' - ' + cache.securityOrigin, false);
     this._model = model;
     this._cache = cache;
     var icon = UI.Icon.create('mediumicon-table', 'resource-tree-item');
@@ skipping 49 matching lines @@
     if (this._view)
       this._view.clear();
   }
 };
 
 /**
  * @unrestricted
  */
 Resources.ServiceWorkersTreeElement = class extends Resources.BaseStorageTreeElement {
   /**
-   * @param {!Resources.ResourcesPanel} storagePanel
+   * @param {!Resources.ApplicationPanelSidebar} storagePanel
    */
   constructor(storagePanel) {
     super(storagePanel, Common.UIString('Service Workers'), false);
     var icon = UI.Icon.create('mediumicon-service-worker', 'resource-tree-item');
     this.setLeadingIcons([icon]);
   }
 
   /**
    * @return {string}
    */
@@ skipping 12 matching lines @@
     this.showView(this._view);
     return false;
   }
 };
 
 /**
  * @unrestricted
  */
 Resources.AppManifestTreeElement = class extends Resources.BaseStorageTreeElement {
   /**
-   * @param {!Resources.ResourcesPanel} storagePanel
+   * @param {!Resources.ApplicationPanelSidebar} storagePanel
    */
   constructor(storagePanel) {
     super(storagePanel, Common.UIString('Manifest'), false);
     var icon = UI.Icon.create('mediumicon-manifest', 'resource-tree-item');
     this.setLeadingIcons([icon]);
   }
 
   /**
    * @return {string}
    */
@@ skipping 12 matching lines @@
     this.showView(this._view);
     return false;
   }
 };
 
 /**
  * @unrestricted
  */
 Resources.ClearStorageTreeElement = class extends Resources.BaseStorageTreeElement {
   /**
-   * @param {!Resources.ResourcesPanel} storagePanel
+   * @param {!Resources.ApplicationPanelSidebar} storagePanel
    */
   constructor(storagePanel) {
     super(storagePanel, Common.UIString('Clear storage'), false);
     var icon = UI.Icon.create('mediumicon-clear-storage', 'resource-tree-item');
     this.setLeadingIcons([icon]);
   }
 
   /**
    * @return {string}
    */
   get itemURL() {
     return 'clear-storage://';
   }
 
   /**
    * @override
    * @return {boolean}
    */
   onselect(selectedByUser) {
     super.onselect(selectedByUser);
     if (!this._view)
-      this._view = new Resources.ClearStorageView(this._storagePanel);
+      this._view = new Resources.ClearStorageView();
     this.showView(this._view);
     return false;
   }
 };
 
 /**
  * @unrestricted
  */
 Resources.IndexedDBTreeElement = class extends Resources.StorageCategoryTreeElement {
   /**
@@ skipping 51 matching lines @@
     var databaseId = /** @type {!Resources.IndexedDBModel.DatabaseId} */ (event.data.databaseId);
     var model = /** @type {!Resources.IndexedDBModel} */ (event.data.model);
     this._addIndexedDB(model, databaseId);
   }
 
   /**
    * @param {!Resources.IndexedDBModel} model
    * @param {!Resources.IndexedDBModel.DatabaseId} databaseId
    */
   _addIndexedDB(model, databaseId) {
-    var idbDatabaseTreeElement = new Resources.IDBDatabaseTreeElement(this._storagePanel, model, databaseId);
+    var idbDatabaseTreeElement = new Resources.IDBDatabaseTreeElement(this.resourcesPanel, model, databaseId);
     this._idbDatabaseTreeElements.push(idbDatabaseTreeElement);
     this.appendChild(idbDatabaseTreeElement);
     model.refreshDatabase(databaseId);
   }
 
   /**
    * @param {!Common.Event} event
    */
   _indexedDBRemoved(event) {
     var databaseId = /** @type {!Resources.IndexedDBModel.DatabaseId} */ (event.data.databaseId);
@@ skipping 38 matching lines @@
     }
     if (index !== -1)
       return this._idbDatabaseTreeElements[i];
     return null;
   }
 };
 
 /**
  * @unrestricted
  */
-Resources.IDBDatabaseTreeElement = class extends Resources.BaseStorageTreeElement {
+Resources.IDBDatabaseTreeElement = class extends Resources.SidebarTreeElement {
   /**
    * @param {!Resources.ResourcesPanel} storagePanel
    * @param {!Resources.IndexedDBModel} model
    * @param {!Resources.IndexedDBModel.DatabaseId} databaseId
    */
   constructor(storagePanel, model, databaseId) {
     super(storagePanel, databaseId.name + ' - ' + databaseId.securityOrigin, false);
     this._model = model;
     this._databaseId = databaseId;
     this._idbObjectStoreTreeElements = {};
@@ skipping 27 matching lines @@
    * @param {!Resources.IndexedDBModel.Database} database
    */
   update(database) {
     this._database = database;
     var objectStoreNames = {};
     for (var objectStoreName in this._database.objectStores) {
       var objectStore = this._database.objectStores[objectStoreName];
       objectStoreNames[objectStore.name] = true;
       if (!this._idbObjectStoreTreeElements[objectStore.name]) {
         var idbObjectStoreTreeElement =
-            new Resources.IDBObjectStoreTreeElement(this._storagePanel, this._model, this._databaseId, objectStore);
+            new Resources.IDBObjectStoreTreeElement(this.resourcesPanel, this._model, this._databaseId, objectStore);
         this._idbObjectStoreTreeElements[objectStore.name] = idbObjectStoreTreeElement;
         this.appendChild(idbObjectStoreTreeElement);
       }
       this._idbObjectStoreTreeElements[objectStore.name].update(objectStore);
     }
     for (var objectStoreName in this._idbObjectStoreTreeElements) {
       if (!objectStoreNames[objectStoreName])
         this._objectStoreRemoved(objectStoreName);
     }
 
@@ skipping 32 matching lines @@
 
   clear() {
     for (var objectStoreName in this._idbObjectStoreTreeElements)
       this._objectStoreRemoved(objectStoreName);
   }
 };
 
 /**
  * @unrestricted
  */
-Resources.IDBObjectStoreTreeElement = class extends Resources.BaseStorageTreeElement {
+Resources.IDBObjectStoreTreeElement = class extends Resources.SidebarTreeElement {
   /**
    * @param {!Resources.ResourcesPanel} storagePanel
    * @param {!Resources.IndexedDBModel} model
    * @param {!Resources.IndexedDBModel.DatabaseId} databaseId
    * @param {!Resources.IndexedDBModel.ObjectStore} objectStore
    */
   constructor(storagePanel, model, databaseId, objectStore) {
     super(storagePanel, objectStore.name, false);
     this._model = model;
     this._databaseId = databaseId;
@@ skipping 36 matching lines @@
    */
   update(objectStore) {
     this._objectStore = objectStore;
 
     var indexNames = {};
     for (var indexName in this._objectStore.indexes) {
       var index = this._objectStore.indexes[indexName];
       indexNames[index.name] = true;
       if (!this._idbIndexTreeElements[index.name]) {
         var idbIndexTreeElement = new Resources.IDBIndexTreeElement(
-            this._storagePanel, this._model, this._databaseId, this._objectStore, index);
+            this.resourcesPanel, this._model, this._databaseId, this._objectStore, index);
         this._idbIndexTreeElements[index.name] = idbIndexTreeElement;
         this.appendChild(idbIndexTreeElement);
       }
       this._idbIndexTreeElements[index.name].update(index);
     }
     for (var indexName in this._idbIndexTreeElements) {
       if (!indexNames[indexName])
         this._indexRemoved(indexName);
     }
     for (var indexName in this._idbIndexTreeElements) {
@@ skipping 47 matching lines @@
     for (var indexName in this._idbIndexTreeElements)
       this._indexRemoved(indexName);
     if (this._view)
       this._view.clear();
   }
 };
 
 /**
  * @unrestricted
  */
-Resources.IDBIndexTreeElement = class extends Resources.BaseStorageTreeElement {
+Resources.IDBIndexTreeElement = class extends Resources.SidebarTreeElement {
   /**
    * @param {!Resources.ResourcesPanel} storagePanel
    * @param {!Resources.IndexedDBModel} model
    * @param {!Resources.IndexedDBModel.DatabaseId} databaseId
    * @param {!Resources.IndexedDBModel.ObjectStore} objectStore
    * @param {!Resources.IndexedDBModel.Index} index
    */
   constructor(storagePanel, model, databaseId, objectStore, index) {
     super(storagePanel, index.name, false);
     this._model = model;
@@ skipping 64 matching lines @@
     return 'storage://' + this._domStorage.securityOrigin + '/' +
         (this._domStorage.isLocalStorage ? 'local' : 'session');
   }
 
   /**
    * @override
    * @return {boolean}
    */
   onselect(selectedByUser) {
     super.onselect(selectedByUser);
-    this._storagePanel._showDOMStorage(this._domStorage);
+    this._storagePanel.showDOMStorage(this._domStorage);
     return false;
   }
 
   /**
    * @override
    */
   onattach() {
     super.onattach();
     this.listItemElement.addEventListener('contextmenu', this._handleContextMenuEvent.bind(this), true);
   }
 
   _handleContextMenuEvent(event) {
     var contextMenu = new UI.ContextMenu(event);
     contextMenu.appendItem(Common.UIString('Clear'), () => this._domStorage.clear());
     contextMenu.show();
   }
 };
 
 Resources.CookieTreeElement = class extends Resources.BaseStorageTreeElement {
   /**
-   * @param {!Resources.ResourcesPanel} storagePanel
+   * @param {!Resources.ApplicationPanelSidebar} storagePanel
    * @param {!SDK.ResourceTreeFrame} frame
    * @param {string} cookieDomain
    */
   constructor(storagePanel, frame, cookieDomain) {
     super(storagePanel, cookieDomain ? cookieDomain : Common.UIString('Local Files'), false);
     this._target = frame.target();
     this._cookieDomain = cookieDomain;
     var icon = UI.Icon.create('mediumicon-cookie', 'resource-tree-item');
     this.setLeadingIcons([icon]);
   }
@@ skipping 49 matching lines @@
   get manifestURL() {
     return this._manifestURL;
   }
 
   /**
    * @override
    * @return {boolean}
    */
   onselect(selectedByUser) {
     super.onselect(selectedByUser);
-    this._storagePanel.showCategoryView(this._manifestURL);
+    this.resourcesPanel.showCategoryView(this._manifestURL);
     return false;
   }
 };
 
 /**
  * @unrestricted
  */
 Resources.ApplicationCacheFrameTreeElement = class extends Resources.BaseStorageTreeElement {
   /**
-   * @param {!Resources.ResourcesPanel} storagePanel
+   * @param {!Resources.ApplicationPanelSidebar} storagePanel
    * @param {!Protocol.Page.FrameId} frameId
    * @param {string} manifestURL
    */
   constructor(storagePanel, frameId, manifestURL) {
     super(storagePanel, '', false);
     this._frameId = frameId;
     this._manifestURL = manifestURL;
     this._refreshTitles();
 
     var icon = UI.Icon.create('largeicon-navigator-folder', 'navigator-tree-item');
@@ skipping 43 matching lines @@
 
     this.element.classList.add('storage-view');
     this._emptyWidget = new UI.EmptyWidget('');
     this._emptyWidget.show(this.element);
   }
 
   setText(text) {
     this._emptyWidget.text = text;
   }
 };