blob: c6eb3642eb2bb41115370f764a7597f682998213 [file] [log] [blame]
// Copyright (c) 2012 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 <deque>
#include <map>
#include <set>
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/gtest_prod_util.h"
#include "base/id_map.h"
#include "base/memory/linked_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "base/process/process.h"
#include "base/strings/string16.h"
#include "base/timer/timer.h"
#include "build/build_config.h"
#include "cc/input/top_controls_state.h"
#include "cc/resources/shared_bitmap.h"
#include "content/common/content_export.h"
#include "content/common/drag_event_source_info.h"
#include "content/common/edit_command.h"
#include "content/common/frame_message_enums.h"
#include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
#include "content/common/navigation_gesture.h"
#include "content/common/navigation_params.h"
#include "content/common/view_message_enums.h"
#include "content/public/common/page_zoom.h"
#include "content/public/common/referrer.h"
#include "content/public/common/renderer_preferences.h"
#include "content/public/common/stop_find_action.h"
#include "content/public/common/top_controls_state.h"
#include "content/public/common/web_preferences.h"
#include "content/public/renderer/render_view.h"
#include "content/renderer/mouse_lock_dispatcher.h"
#include "content/renderer/render_frame_impl.h"
#include "content/renderer/render_widget.h"
#include "content/renderer/stats_collection_observer.h"
#include "ipc/ipc_platform_file.h"
#include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
#include "third_party/WebKit/public/web/WebAXObject.h"
#include "third_party/WebKit/public/web/WebConsoleMessage.h"
#include "third_party/WebKit/public/web/WebDataSource.h"
#include "third_party/WebKit/public/web/WebElement.h"
#include "third_party/WebKit/public/web/WebHistoryItem.h"
#include "third_party/WebKit/public/web/WebIconURL.h"
#include "third_party/WebKit/public/web/WebInputEvent.h"
#include "third_party/WebKit/public/web/WebNavigationType.h"
#include "third_party/WebKit/public/web/WebNode.h"
#include "third_party/WebKit/public/web/WebPageSerializerClient.h"
#include "third_party/WebKit/public/web/WebPageVisibilityState.h"
#include "third_party/WebKit/public/web/WebSecurityOrigin.h"
#include "third_party/WebKit/public/web/WebViewClient.h"
#include "ui/base/window_open_disposition.h"
#include "ui/surface/transport_dib.h"
#if defined(OS_ANDROID)
#include "content/renderer/android/content_detector.h"
#include "content/renderer/android/renderer_date_time_picker.h"
#include "third_party/WebKit/public/web/WebContentDetectionResult.h"
#if defined(COMPILER_MSVC)
// RenderViewImpl is a diamond-shaped hierarchy, with WebWidgetClient at the
// root. VS warns when we inherit the WebWidgetClient method implementations
// from RenderWidget. It's safe to ignore that warning.
#pragma warning(disable: 4250)
class PepperDeviceTest;
class SkBitmap;
struct PP_NetAddress_Private;
struct FrameMsg_Navigate_Params;
struct ViewMsg_New_Params;
struct ViewMsg_PostMessage_Params;
struct ViewMsg_Resize_Params;
struct ViewMsg_StopFinding_Params;
namespace base {
class CommandLine;
namespace blink {
class WebApplicationCacheHost;
class WebApplicationCacheHostClient;
class WebDOMMessageEvent;
class WebDataSource;
class WebDateTimeChooserCompletion;
class WebDragData;
class WebGestureEvent;
class WebIconURL;
class WebImage;
class WebPeerConnection00Handler;
class WebPeerConnection00HandlerClient;
class WebMouseEvent;
class WebPeerConnectionHandler;
class WebPeerConnectionHandlerClient;
class WebSpeechRecognizer;
class WebStorageNamespace;
class WebTouchEvent;
class WebURLRequest;
struct WebActiveWheelFlingParameters;
struct WebDateTimeChooserParams;
struct WebFileChooserParams;
struct WebFindOptions;
struct WebMediaPlayerAction;
struct WebPluginAction;
struct WebPoint;
struct WebWindowFeatures;
#if defined(OS_ANDROID)
class WebHitTestResult;
} // namespace blink
namespace content {
class BrowserPluginManager;
class DevToolsAgent;
class DocumentState;
class HistoryController;
class HistoryEntry;
class ImageResourceFetcher;
class MouseLockDispatcher;
class NavigationState;
class PageState;
class PepperPluginInstanceImpl;
class RenderViewImplTest;
class RenderViewObserver;
class RenderViewTest;
class RendererDateTimePicker;
class RendererWebColorChooserImpl;
class SpeechRecognitionDispatcher;
class WebPluginDelegateProxy;
struct DropData;
struct FaviconURL;
struct FileChooserParams;
struct FileChooserFileInfo;
struct RenderViewImplParams;
#if defined(OS_ANDROID)
class WebMediaPlayerProxyAndroid;
// RenderView is an object that manages a WebView object, and provides a
// communication interface with an embedding application process.
class CONTENT_EXPORT RenderViewImpl
: public RenderWidget,
NON_EXPORTED_BASE(public blink::WebViewClient),
NON_EXPORTED_BASE(public blink::WebPageSerializerClient),
public RenderView,
public base::SupportsWeakPtr<RenderViewImpl> {
// Creates a new RenderView. |opener_id| is the routing ID of the RenderView
// responsible for creating this RenderView. Note that if the original opener
// has been closed, |window_was_created_with_opener| will be true and
// |opener_id| will be MSG_ROUTING_NONE. When |swapped_out| is true, the
// |proxy_routing_id| is specified, so a RenderFrameProxy can be created for
// this RenderView's main RenderFrame.
static RenderViewImpl* Create(const ViewMsg_New_Params& params,
bool was_created_by_renderer);
// Used by content_layouttest_support to hook into the creation of
// RenderViewImpls.
static void InstallCreateHook(
RenderViewImpl* (*create_render_view_impl)(const ViewMsg_New_Params&));
// Returns the RenderViewImpl containing the given WebView.
static RenderViewImpl* FromWebView(blink::WebView* webview);
// Returns the RenderViewImpl for the given routing ID.
static RenderViewImpl* FromRoutingID(int routing_id);
static size_t GetRenderViewCount();
// May return NULL when the view is closing.
blink::WebView* webview() const;
int history_list_offset() const { return history_list_offset_; }
const WebPreferences& webkit_preferences() const {
return webkit_preferences_;
const RendererPreferences& renderer_preferences() const {
return renderer_preferences_;
void set_send_content_state_immediately(bool value) {
send_content_state_immediately_ = value;
MouseLockDispatcher* mouse_lock_dispatcher() {
return mouse_lock_dispatcher_;
HistoryController* history_controller() {
return history_controller_.get();
// Lazily initialize this view's BrowserPluginManager and return it.
BrowserPluginManager* GetBrowserPluginManager();
// Functions to add and remove observers for this object.
void AddObserver(RenderViewObserver* observer);
void RemoveObserver(RenderViewObserver* observer);
// Returns the StatsCollectionObserver associated with this view, or NULL
// if one wasn't created;
StatsCollectionObserver* GetStatsCollectionObserver() {
return stats_collection_observer_.get();
// Adds the given file chooser request to the file_chooser_completion_ queue
// (see that var for more) and requests the chooser be displayed if there are
// no other waiting items in the queue.
// Returns true if the chooser was successfully scheduled. False means we
// didn't schedule anything.
bool ScheduleFileChooser(const FileChooserParams& params,
blink::WebFileChooserCompletion* completion);
#if defined(OS_ANDROID)
void DismissDateTimeDialog();
bool is_loading() const { return frames_in_progress_ != 0; }
void FrameDidStartLoading(blink::WebFrame* frame);
void FrameDidStopLoading(blink::WebFrame* frame);
// Plugin-related functions --------------------------------------------------
#if defined(ENABLE_PLUGINS)
// Get/set the plugin which will be used as to handle document find requests.
void set_plugin_find_handler(PepperPluginInstanceImpl* plugin) {
plugin_find_handler_ = plugin;
PepperPluginInstanceImpl* plugin_find_handler() {
return plugin_find_handler_;
PepperPluginInstanceImpl* focused_pepper_plugin() {
return focused_pepper_plugin_;
PepperPluginInstanceImpl* pepper_last_mouse_event_target() {
return pepper_last_mouse_event_target_;
void set_pepper_last_mouse_event_target(PepperPluginInstanceImpl* plugin) {
pepper_last_mouse_event_target_ = plugin;
#if defined(OS_MACOSX) || defined(OS_WIN)
// Informs the render view that the given plugin has gained or lost focus.
void PluginFocusChanged(bool focused, int plugin_id);
#if defined(OS_MACOSX)
// Starts plugin IME.
void StartPluginIme();
// Indicates that the given instance has been created.
void PepperInstanceCreated(PepperPluginInstanceImpl* instance);
// Indicates that the given instance is being destroyed. This is called from
// the destructor, so it's important that the instance is not dereferenced
// from this call.
void PepperInstanceDeleted(PepperPluginInstanceImpl* instance);
// Notification that the given plugin is focused or unfocused.
void PepperFocusChanged(PepperPluginInstanceImpl* instance, bool focused);
void RegisterPluginDelegate(WebPluginDelegateProxy* delegate);
void UnregisterPluginDelegate(WebPluginDelegateProxy* delegate);
void TransferActiveWheelFlingAnimation(
const blink::WebActiveWheelFlingParameters& params);
// Returns true if the focused element is editable text from the perspective
// of IME support (also used for on-screen keyboard). Works correctly inside
// supported PPAPI plug-ins.
bool HasIMETextFocus();
// Callback for use with GetWindowSnapshot.
typedef base::Callback<void(
const gfx::Size&, const std::vector<unsigned char>&)>
void GetWindowSnapshot(const WindowSnapshotCallback& callback);
// Dispatches the current navigation state to the browser. Called on a
// periodic timer so we don't send too many messages.
void SyncNavigationState();
// Returns the length of the session history of this RenderView. Note that
// this only coincides with the actual length of the session history if this
// RenderView is the currently active RenderView of a WebContents.
unsigned GetLocalSessionHistoryLengthForTesting() const;
// Invokes OnSetFocus and marks the widget as active depending on the value
// of |enable|. This is used for layout tests that need to control the focus
// synchronously from the renderer.
void SetFocusAndActivateForTesting(bool enable);
// Change the device scale factor and force the compositor to resize.
void SetDeviceScaleFactorForTesting(float factor);
// Change the device ICC color profile while running a layout test.
void SetDeviceColorProfileForTesting(const std::vector<char>& color_profile);
void ResetDeviceColorProfileForTesting() override;
// Used to force the size of a window when running layout tests.
void ForceResizeForTesting(const gfx::Size& new_size);
void UseSynchronousResizeModeForTesting(bool enable);
// Control autoresize mode.
void EnableAutoResizeForTesting(const gfx::Size& min_size,
const gfx::Size& max_size);
void DisableAutoResizeForTesting(const gfx::Size& new_size);
// IPC::Listener implementation ----------------------------------------------
bool OnMessageReceived(const IPC::Message& msg) override;
// blink::WebWidgetClient implementation ------------------------------------
// Most methods are handled by RenderWidget.
virtual void didFocus();
virtual void didBlur();
virtual void show(blink::WebNavigationPolicy policy);
virtual void runModal();
virtual bool enterFullScreen();
virtual void exitFullScreen();
virtual bool requestPointerLock();
virtual void requestPointerUnlock();
virtual bool isPointerLocked();
virtual void didHandleGestureEvent(const blink::WebGestureEvent& event,
bool event_cancelled) override;
virtual void initializeLayerTreeView() override;
// blink::WebViewClient implementation --------------------------------------
virtual blink::WebView* createView(blink::WebLocalFrame* creator,
const blink::WebURLRequest& request,
const blink::WebWindowFeatures& features,
const blink::WebString& frame_name,
blink::WebNavigationPolicy policy,
bool suppress_opener);
virtual blink::WebWidget* createPopupMenu(blink::WebPopupType popup_type);
virtual blink::WebStorageNamespace* createSessionStorageNamespace();
virtual void printPage(blink::WebLocalFrame* frame);
virtual bool enumerateChosenDirectory(
const blink::WebString& path,
blink::WebFileChooserCompletion* chooser_completion);
virtual void saveImageFromDataURL(const blink::WebString& data_url);
virtual void didCancelCompositionOnSelectionChange();
virtual bool handleCurrentKeyboardEvent();
virtual bool runFileChooser(
const blink::WebFileChooserParams& params,
blink::WebFileChooserCompletion* chooser_completion);
void SetValidationMessageDirection(base::string16* main_text,
blink::WebTextDirection main_text_hint,
base::string16* sub_text,
blink::WebTextDirection sub_text_hint);
virtual void showValidationMessage(const blink::WebRect& anchor_in_root_view,
const blink::WebString& main_text,
blink::WebTextDirection main_text_hint,
const blink::WebString& sub_text,
blink::WebTextDirection hint) override;
virtual void hideValidationMessage() override;
virtual void moveValidationMessage(
const blink::WebRect& anchor_in_root_view) override;
virtual void setStatusText(const blink::WebString& text);
virtual void setMouseOverURL(const blink::WebURL& url);
virtual void setKeyboardFocusURL(const blink::WebURL& url);
virtual void startDragging(blink::WebLocalFrame* frame,
const blink::WebDragData& data,
blink::WebDragOperationsMask mask,
const blink::WebImage& image,
const blink::WebPoint& imageOffset);
virtual bool acceptsLoadDrops();
virtual void focusNext();
virtual void focusPrevious();
virtual void focusedNodeChanged(const blink::WebNode& node);
virtual void didUpdateLayout();
#if defined(OS_ANDROID) || defined(TOOLKIT_VIEWS)
virtual bool didTapMultipleTargets(
const blink::WebSize& inner_viewport_offset,
const blink::WebRect& touch_rect,
const blink::WebVector<blink::WebRect>& target_rects);
virtual blink::WebString acceptLanguages();
virtual void navigateBackForwardSoon(int offset);
virtual int historyBackListCount();
virtual int historyForwardListCount();
virtual blink::WebSpeechRecognizer* speechRecognizer();
virtual void zoomLimitsChanged(double minimum_level, double maximum_level);
virtual void zoomLevelChanged();
virtual double zoomLevelToZoomFactor(double zoom_level) const;
virtual double zoomFactorToZoomLevel(double factor) const;
virtual void registerProtocolHandler(const blink::WebString& scheme,
const blink::WebURL& url,
const blink::WebString& title);
virtual void unregisterProtocolHandler(const blink::WebString& scheme,
const blink::WebURL& url);
virtual blink::WebPageVisibilityState visibilityState() const;
virtual void draggableRegionsChanged();
#if defined(OS_ANDROID)
virtual void scheduleContentIntent(const blink::WebURL& intent);
virtual void cancelScheduledContentIntents();
virtual blink::WebContentDetectionResult detectContentAround(
const blink::WebHitTestResult& touch_hit);
// Only used on Android since all other platforms implement
// date and time input fields using MULTIPLE_FIELDS_UI
virtual bool openDateTimeChooser(const blink::WebDateTimeChooserParams&,
virtual void didScrollWithKeyboard(const blink::WebSize& delta);
// blink::WebPageSerializerClient implementation ----------------------------
virtual void didSerializeDataForFrame(
const blink::WebURL& frame_url,
const blink::WebCString& data,
PageSerializationStatus status) override;
// RenderView implementation -------------------------------------------------
bool Send(IPC::Message* message) override;
RenderFrameImpl* GetMainRenderFrame() override;
int GetRoutingID() const override;
gfx::Size GetSize() const override;
WebPreferences& GetWebkitPreferences() override;
void SetWebkitPreferences(const WebPreferences& preferences) override;
blink::WebView* GetWebView() override;
blink::WebElement GetFocusedElement() const override;
bool IsEditableNode(const blink::WebNode& node) const override;
bool NodeContainsPoint(const blink::WebNode& node,
const gfx::Point& point) const override;
bool ShouldDisplayScrollbars(int width, int height) const override;
int GetEnabledBindings() const override;
bool GetContentStateImmediately() const override;
blink::WebPageVisibilityState GetVisibilityState() const override;
void DidStartLoading() override;
void DidStopLoading() override;
void Repaint(const gfx::Size& size) override;
void SetEditCommandForNextKeyEvent(const std::string& name,
const std::string& value) override;
void ClearEditCommands() override;
SSLStatus GetSSLStatusOfFrame(blink::WebFrame* frame) const override;
const std::string& GetAcceptLanguages() const override;
#if defined(OS_ANDROID)
virtual void UpdateTopControlsState(TopControlsState constraints,
TopControlsState current,
bool animate) override;
bool uses_temporary_zoom_level() const { return uses_temporary_zoom_level_; }
// Please do not add your stuff randomly to the end here. If there is an
// appropriate section, add it there. If not, there are some random functions
// nearer to the top you can add it to.
// Cannot use std::set unfortunately since linked_ptr<> does not support
// operator<.
typedef std::vector<linked_ptr<ImageResourceFetcher> >
// RenderWidget overrides:
void OnClose() override;
void Close() override;
void OnResize(const ViewMsg_Resize_Params& params) override;
void DidInitiatePaint() override;
void DidFlushPaint() override;
gfx::Vector2d GetScrollOffset() override;
void DidHandleKeyEvent() override;
bool WillHandleMouseEvent(const blink::WebMouseEvent& event) override;
bool WillHandleGestureEvent(const blink::WebGestureEvent& event) override;
void DidHandleMouseEvent(const blink::WebMouseEvent& event) override;
void DidHandleTouchEvent(const blink::WebTouchEvent& event) override;
bool HasTouchEventHandlersAt(const gfx::Point& point) const override;
void OnSetFocus(bool enable) override;
void OnWasHidden() override;
void OnWasShown(bool needs_repainting,
const ui::LatencyInfo& latency_info) override;
GURL GetURLForGraphicsContext3D() override;
void OnImeSetComposition(
const base::string16& text,
const std::vector<blink::WebCompositionUnderline>& underlines,
int selection_start,
int selection_end) override;
void OnImeConfirmComposition(const base::string16& text,
const gfx::Range& replacement_range,
bool keep_selection) override;
void SetDeviceScaleFactor(float device_scale_factor) override;
bool SetDeviceColorProfile(const std::vector<char>& color_profile) override;
void OnOrientationChange() override;
ui::TextInputType GetTextInputType() override;
void GetSelectionBounds(gfx::Rect* start, gfx::Rect* end) override;
#if defined(OS_MACOSX) || defined(USE_AURA) || defined(OS_ANDROID)
void GetCompositionCharacterBounds(
std::vector<gfx::Rect>* character_bounds) override;
void GetCompositionRange(gfx::Range* range) override;
bool CanComposeInline() override;
void DidCommitCompositorFrame() override;
void InstrumentWillBeginFrame(int frame_id) override;
void InstrumentDidBeginFrame() override;
void InstrumentDidCancelFrame() override;
void InstrumentWillComposite() override;
explicit RenderViewImpl(const ViewMsg_New_Params& params);
void Initialize(const ViewMsg_New_Params& params,
bool was_created_by_renderer);
void SetScreenMetricsEmulationParameters(float device_scale_factor,
const gfx::Point& root_layer_offset,
float root_layer_scale) override;
// Do not delete directly. This class is reference counted.
virtual ~RenderViewImpl();
// For unit tests.
friend class PepperDeviceTest;
friend class RenderViewImplTest;
friend class RenderViewTest;
friend class RendererAccessibilityTest;
// TODO(nasko): Temporarily friend RenderFrameImpl, so we don't duplicate
// utility functions needed in both classes, while we move frame specific
// code away from this class.
friend class RenderFrameImpl;
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, DecideNavigationPolicyForWebUI);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ImeComposition);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, InsertCharacters);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, JSBlockSentAfterPageLoad);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, LastCommittedUpdateState);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnHandleKeyboardEvent);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnImeTypeChanged);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnNavStateChanged);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnSetTextDirection);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnUpdateWebPreferences);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, StaleNavigationsIgnored);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, UpdateTargetURLWithInvalidURL);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnNavigationHttpPost);
#if defined(OS_MACOSX)
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, SetHistoryLengthAndPrune);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ZoomLimit);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, NavigateFrame);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, BasicRenderFrame);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, TextInputTypeWithPepper);
FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, SendCandidateWindowEvents);
FRIEND_TEST_ALL_PREFIXES(SuppressErrorPageTest, Suppresses);
FRIEND_TEST_ALL_PREFIXES(SuppressErrorPageTest, DoesNotSuppress);
typedef std::map<GURL, double> HostZoomLevels;
enum ErrorPageType {
// Old WebFrameClient implementations ----------------------------------------
// RenderViewImpl used to be a WebFrameClient, but now RenderFrameImpl is the
// WebFrameClient. However, many implementations of WebFrameClient methods
// still live here and are called from RenderFrameImpl. These implementations
// are to be moved to RenderFrameImpl <>.
void didCreateDataSource(blink::WebLocalFrame* frame,
blink::WebDataSource* datasource);
void didClearWindowObject(blink::WebLocalFrame* frame);
void didChangeIcon(blink::WebLocalFrame*, blink::WebIconURL::Type);
void didUpdateCurrentHistoryItem(blink::WebLocalFrame* frame);
void didChangeScrollOffset(blink::WebLocalFrame* frame);
static bool IsReload(FrameMsg_Navigate_Type::Value navigation_type);
static Referrer GetReferrerFromRequest(
blink::WebFrame* frame,
const blink::WebURLRequest& request);
static WindowOpenDisposition NavigationPolicyToDisposition(
blink::WebNavigationPolicy policy);
void UpdateSessionHistory(blink::WebFrame* frame);
void SendUpdateState(HistoryEntry* entry);
// Sends a message and runs a nested message loop.
bool SendAndRunNestedMessageLoop(IPC::SyncMessage* message);
// IPC message handlers ------------------------------------------------------
// The documentation for these functions should be in
// content/common/*_messages.h for the message that the function is handling.
void OnExecuteEditCommand(const std::string& name, const std::string& value);
void OnMoveCaret(const gfx::Point& point);
void OnScrollFocusedEditableNodeIntoRect(const gfx::Rect& rect);
void OnSetEditCommandsForNextKeyEvent(const EditCommands& edit_commands);
void OnAllowBindings(int enabled_bindings_flags);
void OnAllowScriptToClose(bool script_can_close);
void OnCancelDownload(int32 download_id);
void OnClearFocusedElement();
void OnClosePage();
void OnShowContextMenu(ui::MenuSourceType source_type,
const gfx::Point& location);
void OnCopyImageAt(int x, int y);
void OnSaveImageAt(int x, int y);
void OnDeterminePageLanguage();
void OnDisableScrollbarsForSmallWindows(
const gfx::Size& disable_scrollbars_size_limit);
void OnDragSourceEnded(const gfx::Point& client_point,
const gfx::Point& screen_point,
blink::WebDragOperation drag_operation);
void OnDragSourceSystemDragEnded();
void OnDragTargetDrop(const gfx::Point& client_pt,
const gfx::Point& screen_pt,
int key_modifiers);
void OnDragTargetDragEnter(const DropData& drop_data,
const gfx::Point& client_pt,
const gfx::Point& screen_pt,
blink::WebDragOperationsMask operations_allowed,
int key_modifiers);
void OnDragTargetDragLeave();
void OnDragTargetDragOver(const gfx::Point& client_pt,
const gfx::Point& screen_pt,
blink::WebDragOperationsMask operations_allowed,
int key_modifiers);
void OnEnablePreferredSizeChangedMode();
void OnEnableAutoResize(const gfx::Size& min_size, const gfx::Size& max_size);
void OnDisableAutoResize(const gfx::Size& new_size);
void OnEnumerateDirectoryResponse(int id,
const std::vector<base::FilePath>& paths);
void OnFileChooserResponse(
const std::vector<content::FileChooserFileInfo>& files);
void OnFind(int request_id,
const base::string16&,
const blink::WebFindOptions&);
void OnGetAllSavableResourceLinksForCurrentPage(const GURL& page_url);
void OnGetSerializedHtmlDataForCurrentPageWithLocalLinks(
const std::vector<GURL>& links,
const std::vector<base::FilePath>& local_paths,
const base::FilePath& local_directory_name);
void OnMediaPlayerActionAt(const gfx::Point& location,
const blink::WebMediaPlayerAction& action);
void OnPluginActionAt(const gfx::Point& location,
const blink::WebPluginAction& action);
void OnMoveOrResizeStarted();
void OnPostMessageEvent(const ViewMsg_PostMessage_Params& params);
void OnReleaseDisambiguationPopupBitmap(const cc::SharedBitmapId& id);
void OnResetPageEncodingToDefault();
void OnSetActive(bool active);
void OnSetBackgroundOpaque(bool opaque);
void OnExitFullscreen();
void OnSetHistoryLengthAndPrune(int history_length, int32 minimum_page_id);
void OnSetInitialFocus(bool reverse);
void OnSetPageEncoding(const std::string& encoding_name);
void OnSetRendererPrefs(const RendererPreferences& renderer_prefs);
void OnSetWebUIProperty(const std::string& name, const std::string& value);
void OnSetZoomLevelForLoadingURL(const GURL& url, double zoom_level);
void OnSetZoomLevelForView(bool uses_temporary_zoom_level, double level);
void OnStopFinding(StopFindAction action);
void OnSuppressDialogsUntilSwapOut();
void OnThemeChanged();
void OnUpdateTargetURLAck();
void OnUpdateWebPreferences(const WebPreferences& prefs);
void OnZoom(PageZoom zoom);
void OnEnableViewSourceMode();
void OnWindowSnapshotCompleted(const int snapshot_id,
const gfx::Size& size, const std::vector<unsigned char>& png);
void OnForceRedraw(int request_id);
void OnSelectWordAroundCaret();
#if defined(OS_ANDROID)
void OnActivateNearestFindResult(int request_id, float x, float y);
void OnFindMatchRects(int current_version);
void OnUndoScrollFocusedEditableNodeIntoRect();
void OnUpdateTopControlsState(bool enable_hiding,
bool enable_showing,
bool animate);
void OnExtractSmartClipData(const gfx::Rect& rect);
#elif defined(OS_MACOSX)
void OnGetRenderedText();
void OnPluginImeCompositionCompleted(const base::string16& text,
int plugin_id);
void OnSetInLiveResize(bool in_live_resize);
void OnSetWindowVisibility(bool visible);
void OnWindowFrameChanged(const gfx::Rect& window_frame,
const gfx::Rect& view_frame);
// Adding a new message handler? Please add it in alphabetical order above
// and put it in the same position in the .cc file.
// Misc private functions ----------------------------------------------------
// Check whether the preferred size has changed.
void CheckPreferredSize();
// Called to get the WebPlugin to handle find requests in the document.
// Returns NULL if there is no such WebPlugin.
blink::WebPlugin* GetWebPluginForFind();
// Returns true if the |params| navigation is to an entry that has been
// cropped due to a recent navigation the browser did not know about.
bool IsBackForwardToStaleEntry(const PageState& state,
int pending_history_list_offset,
int32 page_id,
bool is_reload);
// If we initiated a navigation, this function will populate |document_state|
// with the navigation information saved in OnNavigate().
void PopulateDocumentStateFromPending(DocumentState* document_state);
// Returns a new NavigationState populated with the navigation information
// saved in OnNavigate().
NavigationState* CreateNavigationStateFromPending();
// Processes the command-line flags --enable-viewport,
// --enable-fixed-layout[=w,h] and --enable-pinch.
void ProcessViewLayoutFlags(const base::CommandLine& command_line);
#if defined(OS_ANDROID)
// Launch an Android content intent with the given URL.
void LaunchAndroidContentIntent(const GURL& intent_url, size_t request_id);
// Sends a reply to the current find operation handling if it was a
// synchronous find request.
void SendFindReply(int request_id,
int match_count,
int ordinal,
const blink::WebRect& selection_rect,
bool final_status_update);
// Starts nav_state_sync_timer_ if it isn't already running.
void StartNavStateSyncTimerIfNecessary();
#if defined(OS_POSIX) && !defined(OS_MACOSX)
void UpdateFontRenderingFromRendererPrefs();
void UpdateFontRenderingFromRendererPrefs() {}
// Update the target url and tell the browser that the target URL has changed.
// If |url| is empty, show |fallback_url|.
void UpdateTargetURL(const GURL& url, const GURL& fallback_url);
// Tells the browser what the new list of favicons for the webpage is.
void SendUpdateFaviconURL(const std::vector<FaviconURL>& urls);
// Invoked from DidStopLoading(). Sends the current list of loaded favicons to
// the browser.
void DidStopLoadingIcons();
// Coordinate conversion -----------------------------------------------------
gfx::RectF ClientRectToPhysicalWindowRect(const gfx::RectF& rect) const;
// RenderFrameImpl accessible state ------------------------------------------
// The following section is the set of methods that RenderFrameImpl needs
// to access RenderViewImpl state. The set of state variables are page-level
// specific, so they don't belong in RenderFrameImpl and should remain in
// this object.
ObserverList<RenderViewObserver>& observers() {
return observers_;
// TODO(nasko): Remove this method when we move to frame proxy objects, since
// the concept of swapped out will be eliminated.
void set_is_swapped_out(bool swapped_out) {
is_swapped_out_ = swapped_out;
NavigationGesture navigation_gesture() {
return navigation_gesture_;
void set_navigation_gesture(NavigationGesture gesture) {
navigation_gesture_ = gesture;
// ---------------------------------------------------------------------------
// ADDING NEW FUNCTIONS? Please keep private functions alphabetized and put
// it in the same order in the .cc file as it was in the header.
// ---------------------------------------------------------------------------
// Settings ------------------------------------------------------------------
WebPreferences webkit_preferences_;
RendererPreferences renderer_preferences_;
HostZoomLevels host_zoom_levels_;
// Whether content state (such as form state, scroll position and page
// contents) should be sent to the browser immediately. This is normally
// false, but set to true by some tests.
bool send_content_state_immediately_;
// Bitwise-ORed set of extra bindings that have been enabled. See
// BindingsPolicy for details.
int enabled_bindings_;
// If true, we send IPC messages when |preferred_size_| changes.
bool send_preferred_size_changes_;
// If non-empty, and |send_preferred_size_changes_| is true, disable drawing
// scroll bars on windows smaller than this size. Used for windows that the
// browser resizes to the size of the content, such as browser action popups.
// If a render view is set to the minimum size of its content, webkit may add
// scroll bars. This makes sense for fixed sized windows, but it does not
// make sense when the size of the view was chosen to fit the content.
// This setting ensures that no scroll bars are drawn. The size limit exists
// because if the view grows beyond a size known to the browser, scroll bars
// should be drawn.
gfx::Size disable_scrollbars_size_limit_;
// Loading state -------------------------------------------------------------
// The gesture that initiated the current navigation.
// TODO(nasko): Move to RenderFrame, as this is per-frame state.
NavigationGesture navigation_gesture_;
// Used for popups.
bool opened_by_user_gesture_;
// Whether this RenderView was created by a frame that was suppressing its
// opener. If so, we may want to load pages in a separate process. See
// decidePolicyForNavigation for details.
bool opener_suppressed_;
// Whether we must stop creating nested message loops for modal dialogs until
// OnSwapOut is called. This is necessary because modal dialogs have a
// PageGroupLoadDeferrer on the stack that interferes with swapping out.
bool suppress_dialogs_until_swap_out_;
// Holds state pertaining to a navigation that we initiated. This is held by
// the WebDataSource::ExtraData attribute. We use pending_navigation_state_
// as a temporary holder for the state until the WebDataSource corresponding
// to the new navigation is created. See DidCreateDataSource.
// TODO(nasko): Move to RenderFrame, as this is per-frame state.
scoped_ptr<FrameMsg_Navigate_Params> pending_navigation_params_;
// Timer used to delay the updating of nav state (see SyncNavigationState).
base::OneShotTimer<RenderViewImpl> nav_state_sync_timer_;
// Page IDs ------------------------------------------------------------------
// See documentation in RenderView.
int32 page_id_;
// Indicates the ID of the last page that we sent a FrameNavigate to the
// browser for. This is used to determine if the most recent transition
// generated a history entry (less than page_id_), or not (equal to or
// greater than). Note that this will be greater than page_id_ if the user
// goes back.
int32 last_page_id_sent_to_browser_;
// The next available page ID to use for this RenderView. These IDs are
// specific to a given RenderView and the frames within it.
int32 next_page_id_;
// The offset of the current item in the history list.
int history_list_offset_;
// The RenderView's current impression of the history length. This includes
// any items that have committed in this process, but because of cross-process
// navigations, the history may have some entries that were committed in other
// processes. We won't know about them until the next navigation in this
// process.
int history_list_length_;
// Counter to track how many frames have sent start notifications but not stop
// notifications. TODO(avi): Remove this once DidStartLoading/DidStopLoading
// are gone.
int frames_in_progress_;
// The list of page IDs for each history item this RenderView knows about.
// Some entries may be -1 if they were rendered by other processes or were
// restored from a previous session. This lets us detect attempts to
// navigate to stale entries that have been cropped from our history.
std::vector<int32> history_page_ids_;
// UI state ------------------------------------------------------------------
// The state of our target_url transmissions. When we receive a request to
// send a URL to the browser, we set this to TARGET_INFLIGHT until an ACK
// comes back - if a new request comes in before the ACK, we store the new
// URL in pending_target_url_ and set the status to TARGET_PENDING. If an
// ACK comes back and we are in TARGET_PENDING, we send the stored URL and
// revert to TARGET_INFLIGHT.
// We don't need a queue of URLs to send, as only the latest is useful.
enum {
TARGET_INFLIGHT, // We have a request in-flight, waiting for an ACK
TARGET_PENDING // INFLIGHT + we have a URL waiting to be sent
} target_url_status_;
// The URL we show the user in the status bar. We use this to determine if we
// want to send a new one (we do not need to send duplicates). It will be
// equal to either |mouse_over_url_| or |focus_url_|, depending on which was
// updated last.
GURL target_url_;
// The URL the user's mouse is hovering over.
GURL mouse_over_url_;
// The URL that has keyboard focus.
GURL focus_url_;
// The next target URL we want to send to the browser.
GURL pending_target_url_;
// Indicates whether this view overrides url-based zoom settings.
bool uses_temporary_zoom_level_;
#if defined(OS_ANDROID)
// Cache the old top controls state constraints. Used when updating
// current value only without altering the constraints.
cc::TopControlsState top_controls_constraints_;
// View ----------------------------------------------------------------------
// Cache the preferred size of the page in order to prevent sending the IPC
// when layout() recomputes but doesn't actually change sizes.
gfx::Size preferred_size_;
// Used to delay determining the preferred size (to avoid intermediate
// states for the sizes).
base::OneShotTimer<RenderViewImpl> check_preferred_size_timer_;
// Bookkeeping to suppress redundant scroll and focus requests for an already
// scrolled and focused editable node.
bool has_scrolled_focused_editable_node_into_rect_;
gfx::Rect rect_for_scrolled_focused_editable_node_;
// Helper objects ------------------------------------------------------------
scoped_ptr<RenderFrameImpl> main_render_frame_;
// The next group of objects all implement RenderViewObserver, so are deleted
// along with the RenderView automatically. This is why we just store
// weak references.
// The speech recognition dispatcher attached to this view, lazily
// initialized.
SpeechRecognitionDispatcher* speech_recognition_dispatcher_;
// BrowserPluginManager attached to this view; lazily initialized.
scoped_refptr<BrowserPluginManager> browser_plugin_manager_;
DevToolsAgent* devtools_agent_;
// Mouse Lock dispatcher attached to this view.
MouseLockDispatcher* mouse_lock_dispatcher_;
scoped_ptr<HistoryController> history_controller_;
#if defined(OS_ANDROID)
// Android Specific ---------------------------------------------------------
// Expected id of the next content intent launched. Used to prevent scheduled
// intents to be launched if aborted.
size_t expected_content_intent_id_;
// List of click-based content detectors.
typedef std::vector< linked_ptr<ContentDetector> > ContentDetectorList;
ContentDetectorList content_detectors_;
// A date/time picker object for date and time related input elements.
scoped_ptr<RendererDateTimePicker> date_time_picker_client_;
// Plugins -------------------------------------------------------------------
// All the currently active plugin delegates for this RenderView; kept so
// that we can enumerate them to send updates about things like window
// location or tab focus and visibily. These are non-owning references.
std::set<WebPluginDelegateProxy*> plugin_delegates_;
#if defined(OS_WIN)
// The ID of the focused NPAPI plug-in.
int focused_plugin_id_;
#if defined(ENABLE_PLUGINS)
PepperPluginInstanceImpl* plugin_find_handler_;
typedef std::set<PepperPluginInstanceImpl*> PepperPluginSet;
PepperPluginSet active_pepper_instances_;
// TODO(jam): these belong on RenderFrame, once the browser knows which frame
// is focused and sends the IPCs which use these to the correct frame. Until
// then, we must store these on RenderView as that's the one place that knows
// about all the RenderFrames for a page.
// Whether or not the focus is on a PPAPI plugin
PepperPluginInstanceImpl* focused_pepper_plugin_;
// The plugin instance that received the last mouse event. It is set to NULL
// if the last mouse event went to elements other than Pepper plugins.
// |pepper_last_mouse_event_target_| is not owned by this class. We depend on
// the RenderFrameImpl to NULL it out when it destructs.
PepperPluginInstanceImpl* pepper_last_mouse_event_target_;
// Misc ----------------------------------------------------------------------
// The current and pending file chooser completion objects. If the queue is
// nonempty, the first item represents the currently running file chooser
// callback, and the remaining elements are the other file chooser completion
// still waiting to be run (in order).
struct PendingFileChooser;
std::deque< linked_ptr<PendingFileChooser> > file_chooser_completions_;
// The current directory enumeration callback
std::map<int, blink::WebFileChooserCompletion*> enumeration_completions_;
int enumeration_completion_id_;
// The SessionStorage namespace that we're assigned to has an ID, and that ID
// is passed to us upon creation. WebKit asks for this ID upon first use and
// uses it whenever asking the browser process to allocate new storage areas.
int64 session_storage_namespace_id_;
// Stores edit commands associated to the next key event.
// Shall be cleared as soon as the next key event is processed.
EditCommands edit_commands_;
// All the registered observers. We expect this list to be small, so vector
// is fine.
ObserverList<RenderViewObserver> observers_;
// Wraps the |webwidget_| as a MouseLockDispatcher::LockTarget interface.
scoped_ptr<MouseLockDispatcher::LockTarget> webwidget_mouse_lock_target_;
// State associated with the GetWindowSnapshot function.
int next_snapshot_id_;
typedef std::map<int, WindowSnapshotCallback> PendingSnapshotMap;
PendingSnapshotMap pending_snapshots_;
// This field stores drag/drop related info for the event that is currently
// being handled. If the current event results in starting a drag/drop
// session, this info is sent to the browser along with other drag/drop info.
DragEventSourceInfo possible_drag_event_info_;
// NOTE: stats_collection_observer_ should be the last members because their
// constructors call the AddObservers method of RenderViewImpl.
scoped_ptr<StatsCollectionObserver> stats_collection_observer_;
typedef std::map<cc::SharedBitmapId, cc::SharedBitmap*> BitmapMap;
BitmapMap disambiguation_bitmaps_;
// ---------------------------------------------------------------------------
// ADDING NEW DATA? Please see if it fits appropriately in one of the above
// sections rather than throwing it randomly at the end. If you're adding a
// bunch of stuff, you should probably create a helper class and put your
// data and methods on that to avoid bloating RenderView more. You can
// use the Observer interface to filter IPC messages and receive frame change
// notifications.
// ---------------------------------------------------------------------------
} // namespace content