Source/WebInspectorUI/UserInterface/Views/ResourceSidebarPanel.js - WebKit - Git at Google

 /*
  * Copyright (C) 2013, 2015 Apple Inc. 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
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (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.
  */

 WebInspector.ResourceSidebarPanel = class ResourceSidebarPanel extends WebInspector.NavigationSidebarPanel
 {
     constructor(contentBrowser)
     {
         super("resource", WebInspector.UIString("Resources"), true);

         this.contentBrowser = contentBrowser;

         this.filterBar.placeholder = WebInspector.UIString("Filter Resource List");

         this._navigationBar = new WebInspector.NavigationBar;
         this.element.appendChild(this._navigationBar.element);

         var scopeItemPrefix = "resource-sidebar-";
         var scopeBarItems = [];

         scopeBarItems.push(new WebInspector.ScopeBarItem(scopeItemPrefix + "type-all", WebInspector.UIString("All Resources"), true));

         for (var key in WebInspector.Resource.Type) {
             var value = WebInspector.Resource.Type[key];
             var scopeBarItem = new WebInspector.ScopeBarItem(scopeItemPrefix + value, WebInspector.Resource.displayNameForType(value, true));
             scopeBarItem.__resourceType = value;
             scopeBarItems.push(scopeBarItem);
         }

         this._scopeBar = new WebInspector.ScopeBar("resource-sidebar-scope-bar", scopeBarItems, scopeBarItems[0], true);
         this._scopeBar.addEventListener(WebInspector.ScopeBar.Event.SelectionChanged, this._scopeBarSelectionDidChange, this);

         this._navigationBar.addNavigationItem(this._scopeBar);

         WebInspector.Frame.addEventListener(WebInspector.Frame.Event.MainResourceDidChange, this._mainResourceDidChange, this);

         WebInspector.frameResourceManager.addEventListener(WebInspector.FrameResourceManager.Event.MainFrameDidChange, this._mainFrameDidChange, this);

         WebInspector.debuggerManager.addEventListener(WebInspector.DebuggerManager.Event.ScriptAdded, this._scriptWasAdded, this);
         WebInspector.debuggerManager.addEventListener(WebInspector.DebuggerManager.Event.ScriptsCleared, this._scriptsCleared, this);

         WebInspector.notifications.addEventListener(WebInspector.Notification.ExtraDomainsActivated, this._extraDomainsActivated, this);

         this.contentTreeOutline.onselect = this._treeElementSelected.bind(this);
         this.contentTreeOutline.includeSourceMapResourceChildren = true;

         if (WebInspector.debuggableType === WebInspector.DebuggableType.JavaScript)
             this.contentTreeOutline.element.classList.add(WebInspector.NavigationSidebarPanel.HideDisclosureButtonsStyleClassName);

         if (WebInspector.frameResourceManager.mainFrame)
             this._mainFrameMainResourceDidChange(WebInspector.frameResourceManager.mainFrame);
     }

     // Public

     closed()
     {
         super.closed();

         WebInspector.Frame.removeEventListener(null, null, this);
         WebInspector.frameResourceManager.removeEventListener(null, null, this);
         WebInspector.debuggerManager.removeEventListener(null, null, this);
         WebInspector.notifications.removeEventListener(null, null, this);
     }

     showDefaultContentView()
     {
         if (WebInspector.frameResourceManager.mainFrame) {
             this.contentBrowser.showContentViewForRepresentedObject(WebInspector.frameResourceManager.mainFrame);
             return;
         }

         var firstTreeElement = this.contentTreeOutline.children[0];
         if (firstTreeElement)
             this.showDefaultContentViewForTreeElement(firstTreeElement);
     }

     treeElementForRepresentedObject(representedObject)
     {
         // A custom implementation is needed for this since the frames are populated lazily.

         if (!this._mainFrameTreeElement && (representedObject instanceof WebInspector.Resource || representedObject instanceof WebInspector.Frame)) {
             // All resources are under the main frame, so we need to return early if we don't have the main frame yet.
             return null;
         }

         // The Frame is used as the representedObject instead of the main resource in our tree.
         if (representedObject instanceof WebInspector.Resource && representedObject.parentFrame && representedObject.parentFrame.mainResource === representedObject)
             representedObject = representedObject.parentFrame;

         function isAncestor(ancestor, resourceOrFrame)
         {
             // SourceMapResources are descendants of another SourceCode object.
             if (resourceOrFrame instanceof WebInspector.SourceMapResource) {
                 if (resourceOrFrame.sourceMap.originalSourceCode === ancestor)
                     return true;

                 // Not a direct ancestor, so check the ancestors of the parent SourceCode object.
                 resourceOrFrame = resourceOrFrame.sourceMap.originalSourceCode;
             }

             var currentFrame = resourceOrFrame.parentFrame;
             while (currentFrame) {
                 if (currentFrame === ancestor)
                     return true;
                 currentFrame = currentFrame.parentFrame;
             }

             return false;
         }

         function getParent(resourceOrFrame)
         {
             // SourceMapResources are descendants of another SourceCode object.
             if (resourceOrFrame instanceof WebInspector.SourceMapResource)
                 return resourceOrFrame.sourceMap.originalSourceCode;
             return resourceOrFrame.parentFrame;
         }

         var treeElement = this.contentTreeOutline.findTreeElement(representedObject, isAncestor, getParent);
         if (treeElement)
             return treeElement;

         // Only special case Script objects.
         if (!(representedObject instanceof WebInspector.Script)) {
             console.error("Didn't find a TreeElement for representedObject", representedObject);
             return null;
         }

         // If the Script has a URL we should have found it earlier.
         if (representedObject.url) {
             console.error("Didn't find a ScriptTreeElement for a Script with a URL.");
             return null;
         }

         // Since the Script does not have a URL we consider it an 'anonymous' script. These scripts happen from calls to
         // window.eval() or browser features like Auto Fill and Reader. They are not normally added to the sidebar, but since
         // we have a ScriptContentView asking for the tree element we will make a ScriptTreeElement on demand and add it.

         if (!this._anonymousScriptsFolderTreeElement)
             this._anonymousScriptsFolderTreeElement = new WebInspector.FolderTreeElement(WebInspector.UIString("Anonymous Scripts"));

         if (!this._anonymousScriptsFolderTreeElement.parent) {
             var index = insertionIndexForObjectInListSortedByFunction(this._anonymousScriptsFolderTreeElement, this.contentTreeOutline.children, this._compareTreeElements);
             this.contentTreeOutline.insertChild(this._anonymousScriptsFolderTreeElement, index);
         }

         var scriptTreeElement = new WebInspector.ScriptTreeElement(representedObject);
         this._anonymousScriptsFolderTreeElement.appendChild(scriptTreeElement);

         return scriptTreeElement;
     }

     // Protected

     hasCustomFilters()
     {
         console.assert(this._scopeBar.selectedItems.length === 1);
         var selectedScopeBarItem = this._scopeBar.selectedItems[0];
         return selectedScopeBarItem && !selectedScopeBarItem.exclusive;
     }

     matchTreeElementAgainstCustomFilters(treeElement, flags)
     {
         console.assert(this._scopeBar.selectedItems.length === 1);
         var selectedScopeBarItem = this._scopeBar.selectedItems[0];

         // Show everything if there is no selection or "All Resources" is selected (the exclusive item).
         if (!selectedScopeBarItem || selectedScopeBarItem.exclusive)
             return true;

         // Folders are hidden on the first pass, but visible childen under the folder will force the folder visible again.
         if (treeElement instanceof WebInspector.FolderTreeElement)
             return false;

         function match()
         {
             if (treeElement instanceof WebInspector.FrameTreeElement)
                 return selectedScopeBarItem.__resourceType === WebInspector.Resource.Type.Document;

             if (treeElement instanceof WebInspector.ScriptTreeElement)
                 return selectedScopeBarItem.__resourceType === WebInspector.Resource.Type.Script;

             console.assert(treeElement instanceof WebInspector.ResourceTreeElement, "Unknown treeElement", treeElement);
             if (!(treeElement instanceof WebInspector.ResourceTreeElement))
                 return false;

             return treeElement.resource.type === selectedScopeBarItem.__resourceType;
         }

         var matched = match();
         if (matched)
             flags.expandTreeElement = true;
         return matched;
     }

     // Private

     _mainResourceDidChange(event)
     {
         if (!event.target.isMainFrame())
             return;

         this._mainFrameMainResourceDidChange(event.target);
     }

     _mainFrameDidChange(event)
     {
         this._mainFrameMainResourceDidChange(WebInspector.frameResourceManager.mainFrame);
     }

     _mainFrameMainResourceDidChange(mainFrame)
     {
         this.contentBrowser.contentViewContainer.closeAllContentViews();

         if (this._mainFrameTreeElement) {
             this.contentTreeOutline.removeChild(this._mainFrameTreeElement);
             this._mainFrameTreeElement = null;
         }

         if (!mainFrame)
             return;

         this._mainFrameTreeElement = new WebInspector.FrameTreeElement(mainFrame);
         this.contentTreeOutline.insertChild(this._mainFrameTreeElement, 0);

         function delayedWork()
         {
             if (!this.contentTreeOutline.selectedTreeElement) {
                 var currentContentView = this.contentBrowser.currentContentView;
                 var treeElement = currentContentView ? this.treeElementForRepresentedObject(currentContentView.representedObject) : null;
                 if (!treeElement)
                     treeElement = this._mainFrameTreeElement;
                 this.showDefaultContentViewForTreeElement(treeElement);
             }
         }

         // Cookie restoration will attempt to re-select the resource we were showing.
         // Give it time to do that before selecting the main frame resource.
         setTimeout(delayedWork.bind(this));
     }

     _scriptWasAdded(event)
     {
         var script = event.data.script;

         // We don't add scripts without URLs here. Those scripts can quickly clutter the interface and
         // are usually more transient. They will get added if/when they need to be shown in a content view.
         if (!script.url)
             return;

         // Exclude inspector scripts.
         if (script.url.startsWith("__WebInspector"))
             return;

         // If the script URL matches a resource we can assume it is part of that resource and does not need added.
         if (script.resource)
             return;

         var insertIntoTopLevel = false;

         if (script.injected) {
             if (!this._extensionScriptsFolderTreeElement)
                 this._extensionScriptsFolderTreeElement = new WebInspector.FolderTreeElement(WebInspector.UIString("Extension Scripts"));
             var parentFolderTreeElement = this._extensionScriptsFolderTreeElement;
         } else {
             if (WebInspector.debuggableType === WebInspector.DebuggableType.JavaScript && !WebInspector.hasExtraDomains)
                 insertIntoTopLevel = true;
             else {
                 if (!this._extraScriptsFolderTreeElement)
                     this._extraScriptsFolderTreeElement = new WebInspector.FolderTreeElement(WebInspector.UIString("Extra Scripts"));
                 var parentFolderTreeElement = this._extraScriptsFolderTreeElement;
             }
         }

         var scriptTreeElement = new WebInspector.ScriptTreeElement(script);

         if (insertIntoTopLevel) {
             var index = insertionIndexForObjectInListSortedByFunction(scriptTreeElement, this.contentTreeOutline.children, this._compareTreeElements);
             this.contentTreeOutline.insertChild(scriptTreeElement, index);
         } else {
             if (!parentFolderTreeElement.parent) {
                 var index = insertionIndexForObjectInListSortedByFunction(parentFolderTreeElement, this.contentTreeOutline.children, this._compareTreeElements);
                 this.contentTreeOutline.insertChild(parentFolderTreeElement, index);
             }

             parentFolderTreeElement.appendChild(scriptTreeElement);
         }
     }

     _scriptsCleared(event)
     {
         if (this._extensionScriptsFolderTreeElement) {
             if (this._extensionScriptsFolderTreeElement.parent)
                 this._extensionScriptsFolderTreeElement.parent.removeChild(this._extensionScriptsFolderTreeElement);
             this._extensionScriptsFolderTreeElement = null;
         }

         if (this._extraScriptsFolderTreeElement) {
             if (this._extraScriptsFolderTreeElement.parent)
                 this._extraScriptsFolderTreeElement.parent.removeChild(this._extraScriptsFolderTreeElement);
             this._extraScriptsFolderTreeElement = null;
         }

         if (this._anonymousScriptsFolderTreeElement) {
             if (this._anonymousScriptsFolderTreeElement.parent)
                 this._anonymousScriptsFolderTreeElement.parent.removeChild(this._anonymousScriptsFolderTreeElement);
             this._anonymousScriptsFolderTreeElement = null;
         }
     }

     _treeElementSelected(treeElement, selectedByUser)
     {
         if (treeElement instanceof WebInspector.FolderTreeElement)
             return;

         if (treeElement instanceof WebInspector.ResourceTreeElement || treeElement instanceof WebInspector.ScriptTreeElement) {
             WebInspector.showRepresentedObject(treeElement.representedObject);
             return;
         }

         console.error("Unknown tree element", treeElement);
     }

     _compareTreeElements(a, b)
     {
         // Always sort the main frame element first.
         if (a instanceof WebInspector.FrameTreeElement)
             return -1;
         if (b instanceof WebInspector.FrameTreeElement)
             return 1;

         console.assert(a.mainTitle);
         console.assert(b.mainTitle);

         return (a.mainTitle || "").localeCompare(b.mainTitle || "");
     }

     _extraDomainsActivated()
     {
         if (WebInspector.debuggableType === WebInspector.DebuggableType.JavaScript)
             this.contentTreeOutline.element.classList.remove(WebInspector.NavigationSidebarPanel.HideDisclosureButtonsStyleClassName);
     }

     _scopeBarSelectionDidChange(event)
     {
         this.updateFilter();
     }
 };
	/*
	* Copyright (C) 2013, 2015 Apple Inc. 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
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	*
	* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	* CONSEQUENTIAL DAMAGES (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.
	*/

	WebInspector.ResourceSidebarPanel = class ResourceSidebarPanel extends WebInspector.NavigationSidebarPanel
	{
	constructor(contentBrowser)
	{
	super("resource", WebInspector.UIString("Resources"), true);

	this.contentBrowser = contentBrowser;

	this.filterBar.placeholder = WebInspector.UIString("Filter Resource List");

	this._navigationBar = new WebInspector.NavigationBar;
	this.element.appendChild(this._navigationBar.element);

	var scopeItemPrefix = "resource-sidebar-";
	var scopeBarItems = [];

	scopeBarItems.push(new WebInspector.ScopeBarItem(scopeItemPrefix + "type-all", WebInspector.UIString("All Resources"), true));

	for (var key in WebInspector.Resource.Type) {
	var value = WebInspector.Resource.Type[key];
	var scopeBarItem = new WebInspector.ScopeBarItem(scopeItemPrefix + value, WebInspector.Resource.displayNameForType(value, true));
	scopeBarItem.__resourceType = value;
	scopeBarItems.push(scopeBarItem);
	}

	this._scopeBar = new WebInspector.ScopeBar("resource-sidebar-scope-bar", scopeBarItems, scopeBarItems[0], true);
	this._scopeBar.addEventListener(WebInspector.ScopeBar.Event.SelectionChanged, this._scopeBarSelectionDidChange, this);

	this._navigationBar.addNavigationItem(this._scopeBar);

	WebInspector.Frame.addEventListener(WebInspector.Frame.Event.MainResourceDidChange, this._mainResourceDidChange, this);

	WebInspector.frameResourceManager.addEventListener(WebInspector.FrameResourceManager.Event.MainFrameDidChange, this._mainFrameDidChange, this);

	WebInspector.debuggerManager.addEventListener(WebInspector.DebuggerManager.Event.ScriptAdded, this._scriptWasAdded, this);
	WebInspector.debuggerManager.addEventListener(WebInspector.DebuggerManager.Event.ScriptsCleared, this._scriptsCleared, this);

	WebInspector.notifications.addEventListener(WebInspector.Notification.ExtraDomainsActivated, this._extraDomainsActivated, this);

	this.contentTreeOutline.onselect = this._treeElementSelected.bind(this);
	this.contentTreeOutline.includeSourceMapResourceChildren = true;

	if (WebInspector.debuggableType === WebInspector.DebuggableType.JavaScript)
	this.contentTreeOutline.element.classList.add(WebInspector.NavigationSidebarPanel.HideDisclosureButtonsStyleClassName);

	if (WebInspector.frameResourceManager.mainFrame)
	this._mainFrameMainResourceDidChange(WebInspector.frameResourceManager.mainFrame);
	}

	// Public

	closed()
	{
	super.closed();

	WebInspector.Frame.removeEventListener(null, null, this);
	WebInspector.frameResourceManager.removeEventListener(null, null, this);
	WebInspector.debuggerManager.removeEventListener(null, null, this);
	WebInspector.notifications.removeEventListener(null, null, this);
	}

	showDefaultContentView()
	{
	if (WebInspector.frameResourceManager.mainFrame) {
	this.contentBrowser.showContentViewForRepresentedObject(WebInspector.frameResourceManager.mainFrame);
	return;
	}

	var firstTreeElement = this.contentTreeOutline.children[0];
	if (firstTreeElement)
	this.showDefaultContentViewForTreeElement(firstTreeElement);
	}

	treeElementForRepresentedObject(representedObject)
	{
	// A custom implementation is needed for this since the frames are populated lazily.

	if (!this._mainFrameTreeElement && (representedObject instanceof WebInspector.Resource \|\| representedObject instanceof WebInspector.Frame)) {
	// All resources are under the main frame, so we need to return early if we don't have the main frame yet.
	return null;
	}

	// The Frame is used as the representedObject instead of the main resource in our tree.
	if (representedObject instanceof WebInspector.Resource && representedObject.parentFrame && representedObject.parentFrame.mainResource === representedObject)
	representedObject = representedObject.parentFrame;

	function isAncestor(ancestor, resourceOrFrame)
	{
	// SourceMapResources are descendants of another SourceCode object.
	if (resourceOrFrame instanceof WebInspector.SourceMapResource) {
	if (resourceOrFrame.sourceMap.originalSourceCode === ancestor)
	return true;

	// Not a direct ancestor, so check the ancestors of the parent SourceCode object.
	resourceOrFrame = resourceOrFrame.sourceMap.originalSourceCode;
	}

	var currentFrame = resourceOrFrame.parentFrame;
	while (currentFrame) {
	if (currentFrame === ancestor)
	return true;
	currentFrame = currentFrame.parentFrame;
	}

	return false;
	}

	function getParent(resourceOrFrame)
	{
	// SourceMapResources are descendants of another SourceCode object.
	if (resourceOrFrame instanceof WebInspector.SourceMapResource)
	return resourceOrFrame.sourceMap.originalSourceCode;
	return resourceOrFrame.parentFrame;
	}

	var treeElement = this.contentTreeOutline.findTreeElement(representedObject, isAncestor, getParent);
	if (treeElement)
	return treeElement;

	// Only special case Script objects.
	if (!(representedObject instanceof WebInspector.Script)) {
	console.error("Didn't find a TreeElement for representedObject", representedObject);
	return null;
	}

	// If the Script has a URL we should have found it earlier.
	if (representedObject.url) {
	console.error("Didn't find a ScriptTreeElement for a Script with a URL.");
	return null;
	}

	// Since the Script does not have a URL we consider it an 'anonymous' script. These scripts happen from calls to
	// window.eval() or browser features like Auto Fill and Reader. They are not normally added to the sidebar, but since
	// we have a ScriptContentView asking for the tree element we will make a ScriptTreeElement on demand and add it.

	if (!this._anonymousScriptsFolderTreeElement)
	this._anonymousScriptsFolderTreeElement = new WebInspector.FolderTreeElement(WebInspector.UIString("Anonymous Scripts"));

	if (!this._anonymousScriptsFolderTreeElement.parent) {
	var index = insertionIndexForObjectInListSortedByFunction(this._anonymousScriptsFolderTreeElement, this.contentTreeOutline.children, this._compareTreeElements);
	this.contentTreeOutline.insertChild(this._anonymousScriptsFolderTreeElement, index);
	}

	var scriptTreeElement = new WebInspector.ScriptTreeElement(representedObject);
	this._anonymousScriptsFolderTreeElement.appendChild(scriptTreeElement);

	return scriptTreeElement;
	}

	// Protected

	hasCustomFilters()
	{
	console.assert(this._scopeBar.selectedItems.length === 1);
	var selectedScopeBarItem = this._scopeBar.selectedItems[0];
	return selectedScopeBarItem && !selectedScopeBarItem.exclusive;
	}

	matchTreeElementAgainstCustomFilters(treeElement, flags)
	{
	console.assert(this._scopeBar.selectedItems.length === 1);
	var selectedScopeBarItem = this._scopeBar.selectedItems[0];

	// Show everything if there is no selection or "All Resources" is selected (the exclusive item).
	if (!selectedScopeBarItem \|\| selectedScopeBarItem.exclusive)
	return true;

	// Folders are hidden on the first pass, but visible childen under the folder will force the folder visible again.
	if (treeElement instanceof WebInspector.FolderTreeElement)
	return false;

	function match()
	{
	if (treeElement instanceof WebInspector.FrameTreeElement)
	return selectedScopeBarItem.__resourceType === WebInspector.Resource.Type.Document;

	if (treeElement instanceof WebInspector.ScriptTreeElement)
	return selectedScopeBarItem.__resourceType === WebInspector.Resource.Type.Script;

	console.assert(treeElement instanceof WebInspector.ResourceTreeElement, "Unknown treeElement", treeElement);
	if (!(treeElement instanceof WebInspector.ResourceTreeElement))
	return false;

	return treeElement.resource.type === selectedScopeBarItem.__resourceType;
	}

	var matched = match();
	if (matched)
	flags.expandTreeElement = true;
	return matched;
	}

	// Private

	_mainResourceDidChange(event)
	{
	if (!event.target.isMainFrame())
	return;

	this._mainFrameMainResourceDidChange(event.target);
	}

	_mainFrameDidChange(event)
	{
	this._mainFrameMainResourceDidChange(WebInspector.frameResourceManager.mainFrame);
	}

	_mainFrameMainResourceDidChange(mainFrame)
	{
	this.contentBrowser.contentViewContainer.closeAllContentViews();

	if (this._mainFrameTreeElement) {
	this.contentTreeOutline.removeChild(this._mainFrameTreeElement);
	this._mainFrameTreeElement = null;
	}

	if (!mainFrame)
	return;

	this._mainFrameTreeElement = new WebInspector.FrameTreeElement(mainFrame);
	this.contentTreeOutline.insertChild(this._mainFrameTreeElement, 0);

	function delayedWork()
	{
	if (!this.contentTreeOutline.selectedTreeElement) {
	var currentContentView = this.contentBrowser.currentContentView;
	var treeElement = currentContentView ? this.treeElementForRepresentedObject(currentContentView.representedObject) : null;
	if (!treeElement)
	treeElement = this._mainFrameTreeElement;
	this.showDefaultContentViewForTreeElement(treeElement);
	}
	}

	// Cookie restoration will attempt to re-select the resource we were showing.
	// Give it time to do that before selecting the main frame resource.
	setTimeout(delayedWork.bind(this));
	}

	_scriptWasAdded(event)
	{
	var script = event.data.script;

	// We don't add scripts without URLs here. Those scripts can quickly clutter the interface and
	// are usually more transient. They will get added if/when they need to be shown in a content view.
	if (!script.url)
	return;

	// Exclude inspector scripts.
	if (script.url.startsWith("__WebInspector"))
	return;

	// If the script URL matches a resource we can assume it is part of that resource and does not need added.
	if (script.resource)
	return;

	var insertIntoTopLevel = false;

	if (script.injected) {
	if (!this._extensionScriptsFolderTreeElement)
	this._extensionScriptsFolderTreeElement = new WebInspector.FolderTreeElement(WebInspector.UIString("Extension Scripts"));
	var parentFolderTreeElement = this._extensionScriptsFolderTreeElement;
	} else {
	if (WebInspector.debuggableType === WebInspector.DebuggableType.JavaScript && !WebInspector.hasExtraDomains)
	insertIntoTopLevel = true;
	else {
	if (!this._extraScriptsFolderTreeElement)
	this._extraScriptsFolderTreeElement = new WebInspector.FolderTreeElement(WebInspector.UIString("Extra Scripts"));
	var parentFolderTreeElement = this._extraScriptsFolderTreeElement;
	}
	}

	var scriptTreeElement = new WebInspector.ScriptTreeElement(script);

	if (insertIntoTopLevel) {
	var index = insertionIndexForObjectInListSortedByFunction(scriptTreeElement, this.contentTreeOutline.children, this._compareTreeElements);
	this.contentTreeOutline.insertChild(scriptTreeElement, index);
	} else {
	if (!parentFolderTreeElement.parent) {
	var index = insertionIndexForObjectInListSortedByFunction(parentFolderTreeElement, this.contentTreeOutline.children, this._compareTreeElements);
	this.contentTreeOutline.insertChild(parentFolderTreeElement, index);
	}

	parentFolderTreeElement.appendChild(scriptTreeElement);
	}
	}

	_scriptsCleared(event)
	{
	if (this._extensionScriptsFolderTreeElement) {
	if (this._extensionScriptsFolderTreeElement.parent)
	this._extensionScriptsFolderTreeElement.parent.removeChild(this._extensionScriptsFolderTreeElement);
	this._extensionScriptsFolderTreeElement = null;
	}

	if (this._extraScriptsFolderTreeElement) {
	if (this._extraScriptsFolderTreeElement.parent)
	this._extraScriptsFolderTreeElement.parent.removeChild(this._extraScriptsFolderTreeElement);
	this._extraScriptsFolderTreeElement = null;
	}

	if (this._anonymousScriptsFolderTreeElement) {
	if (this._anonymousScriptsFolderTreeElement.parent)
	this._anonymousScriptsFolderTreeElement.parent.removeChild(this._anonymousScriptsFolderTreeElement);
	this._anonymousScriptsFolderTreeElement = null;
	}
	}

	_treeElementSelected(treeElement, selectedByUser)
	{
	if (treeElement instanceof WebInspector.FolderTreeElement)
	return;

	if (treeElement instanceof WebInspector.ResourceTreeElement \|\| treeElement instanceof WebInspector.ScriptTreeElement) {
	WebInspector.showRepresentedObject(treeElement.representedObject);
	return;
	}

	console.error("Unknown tree element", treeElement);
	}

	_compareTreeElements(a, b)
	{
	// Always sort the main frame element first.
	if (a instanceof WebInspector.FrameTreeElement)
	return -1;
	if (b instanceof WebInspector.FrameTreeElement)
	return 1;

	console.assert(a.mainTitle);
	console.assert(b.mainTitle);

	return (a.mainTitle \|\| "").localeCompare(b.mainTitle \|\| "");
	}

	_extraDomainsActivated()
	{
	if (WebInspector.debuggableType === WebInspector.DebuggableType.JavaScript)
	this.contentTreeOutline.element.classList.remove(WebInspector.NavigationSidebarPanel.HideDisclosureButtonsStyleClassName);
	}

	_scopeBarSelectionDidChange(event)
	{
	this.updateFilter();
	}
	};