blob: 09d220cf51e3f27adc7961d729d8c86040e6c0dc [file] [log] [blame]
// 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.
#include <vector>
#include "base/basictypes.h"
#include "base/files/file_path.h"
#include "base/gtest_prod_util.h"
#include "base/id_map.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "base/process/process_handle.h"
#include "content/public/common/javascript_message_type.h"
#include "content/public/common/referrer.h"
#include "content/public/renderer/render_frame.h"
#include "content/renderer/media/webmediaplayer_delegate.h"
#include "content/renderer/render_frame_proxy.h"
#include "content/renderer/renderer_webcookiejar_impl.h"
#include "ipc/ipc_message.h"
#include "third_party/WebKit/public/web/WebDataSource.h"
#include "third_party/WebKit/public/web/WebFrameClient.h"
#include "third_party/WebKit/public/web/WebHistoryCommitType.h"
#include "ui/gfx/range/range.h"
#if defined(OS_ANDROID)
#include "content/renderer/media/android/renderer_media_player_manager.h"
class TransportDIB;
struct FrameMsg_Navigate_Params;
namespace blink {
class WebGeolocationClient;
class WebInputEvent;
class WebMouseEvent;
class WebContentDecryptionModule;
class WebMediaPlayer;
class WebNotificationPresenter;
class WebSecurityOrigin;
struct WebCompositionUnderline;
struct WebContextMenuData;
struct WebCursorInfo;
namespace gfx {
class Point;
class Range;
class Rect;
namespace content {
class ChildFrameCompositingHelper;
class GeolocationDispatcher;
class MediaStreamRendererFactory;
class MidiDispatcher;
class NotificationProvider;
class PepperPluginInstanceImpl;
class RendererCdmManager;
class RendererMediaPlayerManager;
class RendererPpapiHost;
class RenderFrameObserver;
class RenderViewImpl;
class RenderWidget;
class RenderWidgetFullscreenPepper;
class ScreenOrientationDispatcher;
struct CustomContextMenuContext;
class CONTENT_EXPORT RenderFrameImpl
: public RenderFrame,
NON_EXPORTED_BASE(public blink::WebFrameClient),
NON_EXPORTED_BASE(public WebMediaPlayerDelegate) {
// Creates a new RenderFrame. |render_view| is the RenderView object that this
// frame belongs to.
// Callers *must* call |SetWebFrame| immediately after creation.
// TODO(creis): We should structure this so that |SetWebFrame| isn't needed.
static RenderFrameImpl* Create(RenderViewImpl* render_view, int32 routing_id);
// Returns the RenderFrameImpl for the given routing ID.
static RenderFrameImpl* FromRoutingID(int routing_id);
// Just like RenderFrame::FromWebFrame but returns the implementation.
static RenderFrameImpl* FromWebFrame(blink::WebFrame* web_frame);
// Used by content_layouttest_support to hook into the creation of
// RenderFrameImpls.
static void InstallCreateHook(
RenderFrameImpl* (*create_render_frame_impl)(RenderViewImpl*, int32));
virtual ~RenderFrameImpl();
bool is_swapped_out() const {
return is_swapped_out_;
// TODO(nasko): This can be removed once we don't have a swapped out state on
// RenderFrames. See
void set_render_frame_proxy(RenderFrameProxy* proxy) {
render_frame_proxy_ = proxy;
// Out-of-process child frames receive a signal from RenderWidgetCompositor
// when a compositor frame has committed.
void DidCommitCompositorFrame();
// TODO(jam): this is a temporary getter until all the code is transitioned
// to using RenderFrame instead of RenderView.
RenderViewImpl* render_view() { return render_view_.get(); }
RendererWebCookieJarImpl* cookie_jar() { return &cookie_jar_; }
// Returns the RenderWidget associated with this frame.
RenderWidget* GetRenderWidget();
// This is called right after creation with the WebLocalFrame for this
// RenderFrame. It must be called before Initialize.
void SetWebFrame(blink::WebLocalFrame* web_frame);
// This method must be called after the frame has been added to the frame
// tree. It creates all objects that depend on the frame being at its proper
// spot.
void Initialize();
// Notification from RenderView.
virtual void OnStop();
// Notifications from RenderWidget.
void WasHidden();
void WasShown();
// Start/Stop loading notifications.
// TODO(nasko): Those are page-level methods at this time and come from
// WebViewClient. We should move them to be WebFrameClient calls and put
// logic in the browser side to balance starts/stops.
// |to_different_document| will be true unless the load is a fragment
// navigation, or triggered by history.pushState/replaceState.
virtual void didStartLoading(bool to_different_document);
virtual void didStopLoading();
virtual void didChangeLoadProgress(double load_progress);
#if defined(ENABLE_PLUGINS)
// Notification that a PPAPI plugin has been created.
void PepperPluginCreated(RendererPpapiHost* host);
// Notifies that |instance| has changed the cursor.
// This will update the cursor appearance if it is currently over the plugin
// instance.
void PepperDidChangeCursor(PepperPluginInstanceImpl* instance,
const blink::WebCursorInfo& cursor);
// Notifies that |instance| has received a mouse event.
void PepperDidReceiveMouseEvent(PepperPluginInstanceImpl* instance);
// Informs the render view that a PPAPI plugin has changed text input status.
void PepperTextInputTypeChanged(PepperPluginInstanceImpl* instance);
void PepperCaretPositionChanged(PepperPluginInstanceImpl* instance);
// Cancels current composition.
void PepperCancelComposition(PepperPluginInstanceImpl* instance);
// Informs the render view that a PPAPI plugin has changed selection.
void PepperSelectionChanged(PepperPluginInstanceImpl* instance);
// Creates a fullscreen container for a pepper plugin instance.
RenderWidgetFullscreenPepper* CreatePepperFullscreenContainer(
PepperPluginInstanceImpl* plugin);
bool IsPepperAcceptingCompositionEvents() const;
// Notification that the given plugin has crashed.
void PluginCrashed(const base::FilePath& plugin_path,
base::ProcessId plugin_pid);
// Simulates IME events for testing purpose.
void SimulateImeSetComposition(
const base::string16& text,
const std::vector<blink::WebCompositionUnderline>& underlines,
int selection_start,
int selection_end);
void SimulateImeConfirmComposition(const base::string16& text,
const gfx::Range& replacement_range);
// TODO(jam): remove these once the IPC handler moves from RenderView to
// RenderFrame.
void OnImeSetComposition(
const base::string16& text,
const std::vector<blink::WebCompositionUnderline>& underlines,
int selection_start,
int selection_end);
void OnImeConfirmComposition(
const base::string16& text,
const gfx::Range& replacement_range,
bool keep_selection);
// IPC::Sender
virtual bool Send(IPC::Message* msg) OVERRIDE;
// IPC::Listener
virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
// RenderFrame implementation:
virtual RenderView* GetRenderView() OVERRIDE;
virtual int GetRoutingID() OVERRIDE;
virtual blink::WebFrame* GetWebFrame() OVERRIDE;
virtual WebPreferences& GetWebkitPreferences() OVERRIDE;
virtual int ShowContextMenu(ContextMenuClient* client,
const ContextMenuParams& params) OVERRIDE;
virtual void CancelContextMenu(int request_id) OVERRIDE;
virtual blink::WebNode GetContextMenuNode() const OVERRIDE;
virtual blink::WebPlugin* CreatePlugin(
blink::WebFrame* frame,
const WebPluginInfo& info,
const blink::WebPluginParams& params) OVERRIDE;
virtual void LoadURLExternally(blink::WebLocalFrame* frame,
const blink::WebURLRequest& request,
blink::WebNavigationPolicy policy) OVERRIDE;
virtual void ExecuteJavaScript(const base::string16& javascript) OVERRIDE;
virtual bool IsHidden() OVERRIDE;
// blink::WebFrameClient implementation:
virtual blink::WebPlugin* createPlugin(blink::WebLocalFrame* frame,
const blink::WebPluginParams& params);
virtual blink::WebMediaPlayer* createMediaPlayer(
blink::WebLocalFrame* frame,
const blink::WebURL& url,
blink::WebMediaPlayerClient* client);
virtual blink::WebContentDecryptionModule* createContentDecryptionModule(
blink::WebLocalFrame* frame,
const blink::WebSecurityOrigin& security_origin,
const blink::WebString& key_system);
virtual blink::WebApplicationCacheHost* createApplicationCacheHost(
blink::WebLocalFrame* frame,
blink::WebApplicationCacheHostClient* client);
virtual blink::WebWorkerPermissionClientProxy*
createWorkerPermissionClientProxy(blink::WebLocalFrame* frame);
virtual blink::WebCookieJar* cookieJar(blink::WebLocalFrame* frame);
virtual blink::WebServiceWorkerProvider* createServiceWorkerProvider(
blink::WebLocalFrame* frame);
virtual void didAccessInitialDocument(blink::WebLocalFrame* frame);
virtual blink::WebFrame* createChildFrame(blink::WebLocalFrame* parent,
const blink::WebString& name);
virtual void didDisownOpener(blink::WebLocalFrame* frame);
virtual void frameDetached(blink::WebFrame* frame);
virtual void frameFocused();
virtual void willClose(blink::WebFrame* frame);
virtual void didChangeName(blink::WebLocalFrame* frame,
const blink::WebString& name);
virtual void didMatchCSS(
blink::WebLocalFrame* frame,
const blink::WebVector<blink::WebString>& newly_matching_selectors,
const blink::WebVector<blink::WebString>& stopped_matching_selectors);
virtual bool shouldReportDetailedMessageForSource(
const blink::WebString& source);
virtual void didAddMessageToConsole(const blink::WebConsoleMessage& message,
const blink::WebString& source_name,
unsigned source_line,
const blink::WebString& stack_trace);
virtual void loadURLExternally(blink::WebLocalFrame* frame,
const blink::WebURLRequest& request,
blink::WebNavigationPolicy policy,
const blink::WebString& suggested_name);
// The WebDataSource::ExtraData* is assumed to be a DocumentState* subclass.
virtual blink::WebNavigationPolicy decidePolicyForNavigation(
blink::WebLocalFrame* frame,
blink::WebDataSource::ExtraData* extra_data,
const blink::WebURLRequest& request,
blink::WebNavigationType type,
blink::WebNavigationPolicy default_policy,
bool is_redirect);
virtual blink::WebHistoryItem historyItemForNewChildFrame(
blink::WebFrame* frame);
virtual void willSendSubmitEvent(blink::WebLocalFrame* frame,
const blink::WebFormElement& form);
virtual void willSubmitForm(blink::WebLocalFrame* frame,
const blink::WebFormElement& form);
virtual void didCreateDataSource(blink::WebLocalFrame* frame,
blink::WebDataSource* datasource);
virtual void didStartProvisionalLoad(blink::WebLocalFrame* frame);
virtual void didReceiveServerRedirectForProvisionalLoad(
blink::WebLocalFrame* frame);
virtual void didFailProvisionalLoad(
blink::WebLocalFrame* frame,
const blink::WebURLError& error);
virtual void didCommitProvisionalLoad(
blink::WebLocalFrame* frame,
const blink::WebHistoryItem& item,
blink::WebHistoryCommitType commit_type);
virtual void didClearWindowObject(blink::WebLocalFrame* frame);
virtual void didCreateDocumentElement(blink::WebLocalFrame* frame);
virtual void didReceiveTitle(blink::WebLocalFrame* frame,
const blink::WebString& title,
blink::WebTextDirection direction);
virtual void didChangeIcon(blink::WebLocalFrame* frame,
blink::WebIconURL::Type icon_type);
virtual void didFinishDocumentLoad(blink::WebLocalFrame* frame);
virtual void didHandleOnloadEvents(blink::WebLocalFrame* frame);
virtual void didFailLoad(blink::WebLocalFrame* frame,
const blink::WebURLError& error);
virtual void didFinishLoad(blink::WebLocalFrame* frame);
virtual void didNavigateWithinPage(blink::WebLocalFrame* frame,
const blink::WebHistoryItem& item,
blink::WebHistoryCommitType commit_type);
virtual void didUpdateCurrentHistoryItem(blink::WebLocalFrame* frame);
virtual void didChangeThemeColor();
virtual blink::WebNotificationPresenter* notificationPresenter();
virtual void didChangeSelection(bool is_empty_selection);
virtual blink::WebColorChooser* createColorChooser(
blink::WebColorChooserClient* client,
const blink::WebColor& initial_color,
const blink::WebVector<blink::WebColorSuggestion>& suggestions);
virtual void runModalAlertDialog(const blink::WebString& message);
virtual bool runModalConfirmDialog(const blink::WebString& message);
virtual bool runModalPromptDialog(const blink::WebString& message,
const blink::WebString& default_value,
blink::WebString* actual_value);
virtual bool runModalBeforeUnloadDialog(bool is_reload,
const blink::WebString& message);
virtual void showContextMenu(const blink::WebContextMenuData& data);
virtual void clearContextMenu();
virtual void willRequestAfterPreconnect(blink::WebLocalFrame* frame,
blink::WebURLRequest& request);
virtual void willSendRequest(blink::WebLocalFrame* frame,
unsigned identifier,
blink::WebURLRequest& request,
const blink::WebURLResponse& redirect_response);
virtual void didReceiveResponse(blink::WebLocalFrame* frame,
unsigned identifier,
const blink::WebURLResponse& response);
virtual void didFinishResourceLoad(blink::WebLocalFrame* frame,
unsigned identifier);
virtual void didLoadResourceFromMemoryCache(
blink::WebLocalFrame* frame,
const blink::WebURLRequest& request,
const blink::WebURLResponse& response);
virtual void didDisplayInsecureContent(blink::WebLocalFrame* frame);
virtual void didRunInsecureContent(blink::WebLocalFrame* frame,
const blink::WebSecurityOrigin& origin,
const blink::WebURL& target);
virtual void didAbortLoading(blink::WebLocalFrame* frame);
virtual void didCreateScriptContext(blink::WebLocalFrame* frame,
v8::Handle<v8::Context> context,
int extension_group,
int world_id);
virtual void willReleaseScriptContext(blink::WebLocalFrame* frame,
v8::Handle<v8::Context> context,
int world_id);
virtual void didFirstVisuallyNonEmptyLayout(blink::WebLocalFrame* frame);
virtual void didChangeScrollOffset(blink::WebLocalFrame* frame);
virtual void willInsertBody(blink::WebLocalFrame* frame);
virtual void reportFindInPageMatchCount(int request_id,
int count,
bool final_update);
virtual void reportFindInPageSelection(int request_id,
int active_match_ordinal,
const blink::WebRect& sel);
virtual void requestStorageQuota(blink::WebLocalFrame* frame,
blink::WebStorageQuotaType type,
unsigned long long requested_size,
blink::WebStorageQuotaCallbacks callbacks);
virtual void willOpenSocketStream(
blink::WebSocketStreamHandle* handle);
virtual void willOpenWebSocket(blink::WebSocketHandle* handle);
virtual blink::WebGeolocationClient* geolocationClient();
virtual void willStartUsingPeerConnectionHandler(
blink::WebLocalFrame* frame,
blink::WebRTCPeerConnectionHandler* handler);
virtual blink::WebUserMediaClient* userMediaClient();
virtual blink::WebMIDIClient* webMIDIClient();
virtual bool willCheckAndDispatchMessageEvent(
blink::WebLocalFrame* source_frame,
blink::WebFrame* target_frame,
blink::WebSecurityOrigin target_origin,
blink::WebDOMMessageEvent event);
virtual blink::WebString userAgentOverride(blink::WebLocalFrame* frame,
const blink::WebURL& url);
virtual blink::WebString doNotTrackValue(blink::WebLocalFrame* frame);
virtual bool allowWebGL(blink::WebLocalFrame* frame, bool default_value);
virtual void didLoseWebGLContext(blink::WebLocalFrame* frame,
int arb_robustness_status_code);
virtual void forwardInputEvent(const blink::WebInputEvent* event);
virtual void initializeChildFrame(const blink::WebRect& frame_rect,
float scale_factor);
virtual blink::WebScreenOrientationClient* webScreenOrientationClient();
// WebMediaPlayerDelegate implementation:
virtual void DidPlay(blink::WebMediaPlayer* player) OVERRIDE;
virtual void DidPause(blink::WebMediaPlayer* player) OVERRIDE;
virtual void PlayerGone(blink::WebMediaPlayer* player) OVERRIDE;
// TODO(nasko): Make all tests in RenderViewImplTest friends and then move
// this back to private member.
void OnNavigate(const FrameMsg_Navigate_Params& params);
RenderFrameImpl(RenderViewImpl* render_view, int32 routing_id);
friend class RenderFrameObserver;
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ReloadWhileSwappedOut);
typedef std::map<GURL, double> HostZoomLevels;
// Functions to add and remove observers for this object.
void AddObserver(RenderFrameObserver* observer);
void RemoveObserver(RenderFrameObserver* observer);
void UpdateURL(blink::WebFrame* frame);
// Gets the focused element. If no such element exists then the element will
// be NULL.
blink::WebElement GetFocusedElement();
// IPC message handlers ------------------------------------------------------
// The documentation for these functions should be in
// content/common/*_messages.h for the message that the function is handling.
void OnBeforeUnload();
void OnSwapOut(int proxy_routing_id);
void OnShowContextMenu(const gfx::Point& location);
void OnContextMenuClosed(const CustomContextMenuContext& custom_context);
void OnCustomContextMenuAction(const CustomContextMenuContext& custom_context,
unsigned action);
void OnUndo();
void OnRedo();
void OnCut();
void OnCopy();
void OnPaste();
void OnPasteAndMatchStyle();
void OnDelete();
void OnSelectAll();
void OnSelectRange(const gfx::Point& start, const gfx::Point& end);
void OnUnselect();
void OnReplace(const base::string16& text);
void OnReplaceMisspelling(const base::string16& text);
void OnCSSInsertRequest(const std::string& css);
void OnJavaScriptExecuteRequest(const base::string16& javascript,
int id,
bool notify_result);
void OnSetEditableSelectionOffsets(int start, int end);
void OnSetCompositionFromExistingText(
int start, int end,
const std::vector<blink::WebCompositionUnderline>& underlines);
void OnExtendSelectionAndDelete(int before, int after);
void OnReload(bool ignore_cache);
void OnTextSurroundingSelectionRequest(size_t max_length);
void OnAddStyleSheetByURL(const std::string& url);
#if defined(OS_MACOSX)
void OnCopyToFindPboard();
// Virtual since overridden by WebTestProxy for layout tests.
virtual blink::WebNavigationPolicy DecidePolicyForNavigation(
RenderFrame* render_frame,
blink::WebFrame* frame,
blink::WebDataSource::ExtraData* extraData,
const blink::WebURLRequest& request,
blink::WebNavigationType type,
blink::WebNavigationPolicy default_policy,
bool is_redirect);
void OpenURL(blink::WebFrame* frame,
const GURL& url,
const Referrer& referrer,
blink::WebNavigationPolicy policy);
// Update current main frame's encoding and send it to browser window.
// Since we want to let users see the right encoding info from menu
// before finishing loading, we call the UpdateEncoding in
// a) function:DidCommitLoadForFrame. When this function is called,
// that means we have got first data. In here we try to get encoding
// of page if it has been specified in http header.
// b) function:DidReceiveTitle. When this function is called,
// that means we have got specified title. Because in most of webpages,
// title tags will follow meta tags. In here we try to get encoding of
// page if it has been specified in meta tag.
// c) function:DidFinishDocumentLoadForFrame. When this function is
// called, that means we have got whole html page. In here we should
// finally get right encoding of page.
void UpdateEncoding(blink::WebFrame* frame,
const std::string& encoding_name);
// Dispatches the current state of selection on the webpage to the browser if
// it has changed.
// TODO(varunjain): delete this method once we figure out how to keep
// selection handles in sync with the webpage.
void SyncSelectionIfRequired();
// Returns whether |params.selection_text| should be synchronized to the
// browser before bringing up the context menu. Static for testing.
static bool ShouldUpdateSelectionTextFromContextMenuParams(
const base::string16& selection_text,
size_t selection_text_offset,
const gfx::Range& selection_range,
const ContextMenuParams& params);
bool RunJavaScriptMessage(JavaScriptMessageType type,
const base::string16& message,
const base::string16& default_value,
const GURL& frame_url,
base::string16* result);
// Loads the appropriate error page for the specified failure into the frame.
void LoadNavigationErrorPage(const blink::WebURLRequest& failed_request,
const blink::WebURLError& error,
bool replace);
// Initializes |web_user_media_client_|, returning true if successful. Returns
// false if it wasn't possible to create a MediaStreamClient (e.g., WebRTC is
// disabled) in which case |web_user_media_client_| is NULL.
bool InitializeUserMediaClient();
blink::WebMediaPlayer* CreateWebMediaPlayerForMediaStream(
const blink::WebURL& url,
blink::WebMediaPlayerClient* client);
// Creates a factory object used for creating audio and video renderers.
// The method is virtual so that layouttests can override it.
virtual scoped_ptr<MediaStreamRendererFactory> CreateRendererFactory();
// Returns the URL being loaded by the |frame_|'s request.
GURL GetLoadingUrl() const;
#if defined(OS_ANDROID)
blink::WebMediaPlayer* CreateAndroidWebMediaPlayer(
const blink::WebURL& url,
blink::WebMediaPlayerClient* client);
RendererMediaPlayerManager* GetMediaPlayerManager();
RendererCdmManager* GetCdmManager();
// Stores the WebLocalFrame we are associated with.
blink::WebLocalFrame* frame_;
base::WeakPtr<RenderViewImpl> render_view_;
int routing_id_;
bool is_swapped_out_;
// RenderFrameProxy exists only when is_swapped_out_ is true.
// TODO(nasko): This can be removed once we don't have a swapped out state on
// RenderFrame. See
RenderFrameProxy* render_frame_proxy_;
bool is_detaching_;
#if defined(ENABLE_PLUGINS)
// Current text input composition text. Empty if no composition is in
// progress.
base::string16 pepper_composition_text_;
RendererWebCookieJarImpl cookie_jar_;
// All the registered observers.
ObserverList<RenderFrameObserver> observers_;
scoped_refptr<ChildFrameCompositingHelper> compositing_helper_;
// The node that the context menu was pressed over.
blink::WebNode context_menu_node_;
// External context menu requests we're waiting for. "Internal"
// (WebKit-originated) context menu events will have an ID of 0 and will not
// be in this map.
// We don't want to add internal ones since some of the "special" page
// handlers in the browser process just ignore the context menu requests so
// avoid showing context menus, and so this will cause right clicks to leak
// entries in this map. Most users of the custom context menu (e.g. Pepper
// plugins) are normally only on "regular" pages and the regular pages will
// always respond properly to the request, so we don't have to worry so
// much about leaks.
IDMap<ContextMenuClient, IDMapExternalPointer> pending_context_menus_;
// The text selection the last time DidChangeSelection got called. May contain
// additional characters before and after the selected text, for IMEs. The
// portion of this string that is the actual selected text starts at index
// |selection_range_.GetMin() - selection_text_offset_| and has length
// |selection_range_.length()|.
base::string16 selection_text_;
// The offset corresponding to the start of |selection_text_| in the document.
size_t selection_text_offset_;
// Range over the document corresponding to the actual selected text (which
// could correspond to a substring of |selection_text_|; see above).
gfx::Range selection_range_;
// Used to inform didChangeSelection() when it is called in the context
// of handling a InputMsg_SelectRange IPC.
bool handling_select_range_;
// The next group of objects all implement RenderFrameObserver, so are deleted
// along with the RenderFrame automatically. This is why we just store weak
// references.
// Holds a reference to the service which provides desktop notifications.
NotificationProvider* notification_provider_;
blink::WebUserMediaClient* web_user_media_client_;
// MidiClient attached to this frame; lazily initialized.
MidiDispatcher* midi_dispatcher_;
#if defined(OS_ANDROID)
// Manages all media players in this render frame for communicating with the
// real media player in the browser process. It's okay to use a raw pointer
// since it's a RenderFrameObserver.
RendererMediaPlayerManager* media_player_manager_;
// Manage all CDMs in this render frame for communicating with the real CDM in
// the browser process. It's okay to use a raw pointer since it's a
// RenderFrameObserver.
RendererCdmManager* cdm_manager_;
// The geolocation dispatcher attached to this view, lazily initialized.
GeolocationDispatcher* geolocation_dispatcher_;
// The screen orientation dispatcher attached to the view, lazily initialized.
ScreenOrientationDispatcher* screen_orientation_dispatcher_;
base::WeakPtrFactory<RenderFrameImpl> weak_factory_;
} // namespace content