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chromium / chromium / src / 84069951a41d11c516dc06579beef14221de543e / . / content / browser / web_contents / web_contents_impl.h
blob: 80ab581435dfda581a8cfde075b23620ba212441 [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.
#ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
#define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
#include <stdint.h>
#include <functional>
#include <map>
#include <memory>
#include <set>
#include <string>
#include "base/compiler_specific.h"
#include "base/containers/scoped_ptr_hash_map.h"
#include "base/gtest_prod_util.h"
#include "base/macros.h"
#include "base/observer_list.h"
#include "base/process/process.h"
#include "base/values.h"
#include "build/build_config.h"
#include "content/browser/frame_host/frame_tree.h"
#include "content/browser/frame_host/navigation_controller_delegate.h"
#include "content/browser/frame_host/navigation_controller_impl.h"
#include "content/browser/frame_host/navigator_delegate.h"
#include "content/browser/frame_host/render_frame_host_delegate.h"
#include "content/browser/frame_host/render_frame_host_manager.h"
#include "content/browser/media/audio_stream_monitor.h"
#include "content/browser/renderer_host/render_view_host_delegate.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/renderer_host/render_widget_host_delegate.h"
#include "content/common/accessibility_mode_enums.h"
#include "content/common/content_export.h"
#include "content/public/browser/color_chooser.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/common/page_importance_signals.h"
#include "content/public/common/renderer_preferences.h"
#include "content/public/common/resource_type.h"
#include "content/public/common/three_d_api_types.h"
#include "net/base/load_states.h"
#include "net/http/http_response_headers.h"
#include "third_party/WebKit/public/platform/WebDragOperation.h"
#include "ui/base/page_transition_types.h"
#include "ui/gfx/geometry/rect_f.h"
#include "ui/gfx/geometry/size.h"
struct ViewHostMsg_DateTimeDialogValue_Params;
namespace content {
class BrowserPluginEmbedder;
class BrowserPluginGuest;
class DateTimeChooserAndroid;
class DownloadItem;
class FindRequestManager;
class GeolocationServiceContext;
class InterstitialPageImpl;
class JavaScriptDialogManager;
class LoaderIOThreadNotifier;
class ManifestManagerHost;
class MediaWebContentsObserver;
class PluginContentOriginWhitelist;
class PowerSaveBlocker;
class RenderViewHost;
class RenderViewHostDelegateView;
class RenderWidgetHostImpl;
class RenderWidgetHostInputEventRouter;
class SavePackage;
class ScreenOrientationDispatcherHost;
class SiteInstance;
class TestWebContents;
class WakeLockServiceContext;
class WebContentsAudioMuter;
class WebContentsDelegate;
class WebContentsImpl;
class WebContentsView;
class WebContentsViewDelegate;
struct AXEventNotificationDetails;
struct ColorSuggestion;
struct FaviconURL;
struct LoadNotificationDetails;
struct ResourceRedirectDetails;
struct ResourceRequestDetails;
#if defined(OS_ANDROID)
class WebContentsAndroid;
#endif
// Factory function for the implementations that content knows about. Takes
// ownership of |delegate|.
WebContentsView* CreateWebContentsView(
WebContentsImpl* web_contents,
WebContentsViewDelegate* delegate,
RenderViewHostDelegateView** render_view_host_delegate_view);
class CONTENT_EXPORT WebContentsImpl
: public NON_EXPORTED_BASE(WebContents),
public NON_EXPORTED_BASE(RenderFrameHostDelegate),
public RenderViewHostDelegate,
public RenderWidgetHostDelegate,
public RenderFrameHostManager::Delegate,
public NotificationObserver,
public NON_EXPORTED_BASE(NavigationControllerDelegate),
public NON_EXPORTED_BASE(NavigatorDelegate) {
public:
class FriendZone;
~WebContentsImpl() override;
static WebContentsImpl* CreateWithOpener(
const WebContents::CreateParams& params,
FrameTreeNode* opener);
static std::vector<WebContentsImpl*> GetAllWebContents();
static WebContentsImpl* FromFrameTreeNode(FrameTreeNode* frame_tree_node);
static WebContents* FromRenderFrameHostID(int render_process_host_id,
int render_frame_host_id);
// Complex initialization here. Specifically needed to avoid having
// members call back into our virtual functions in the constructor.
virtual void Init(const WebContents::CreateParams& params);
// Returns the SavePackage which manages the page saving job. May be NULL.
SavePackage* save_package() const { return save_package_.get(); }
#if defined(OS_ANDROID)
// In Android WebView, the RenderView needs created even there is no
// navigation entry, this allows Android WebViews to use
// javascript: URLs that load into the DOMWindow before the first page
// load. This is not safe to do in any context that a web page could get a
// reference to the DOMWindow before the first page load.
bool CreateRenderViewForInitialEmptyDocument();
#endif
// Expose the render manager for testing.
// TODO(creis): Remove this now that we can get to it via FrameTreeNode.
RenderFrameHostManager* GetRenderManagerForTesting();
// Returns the outer WebContents of this WebContents if any.
// Note that without --site-per-process, this will return the WebContents
// of the BrowserPluginEmbedder, if |this| is a guest.
WebContentsImpl* GetOuterWebContents();
// Returns guest browser plugin object, or NULL if this WebContents is not a
// guest.
BrowserPluginGuest* GetBrowserPluginGuest() const;
// Sets a BrowserPluginGuest object for this WebContents. If this WebContents
// has a BrowserPluginGuest then that implies that it is being hosted by
// a BrowserPlugin object in an embedder renderer process.
void SetBrowserPluginGuest(BrowserPluginGuest* guest);
// Returns embedder browser plugin object, or NULL if this WebContents is not
// an embedder.
BrowserPluginEmbedder* GetBrowserPluginEmbedder() const;
// Creates a BrowserPluginEmbedder object for this WebContents if one doesn't
// already exist.
void CreateBrowserPluginEmbedderIfNecessary();
// Cancels modal dialogs in this WebContents, as well as in any browser
// plugins it is hosting.
void CancelActiveAndPendingDialogs();
// Gets the current fullscreen render widget's routing ID. Returns
// MSG_ROUTING_NONE when there is no fullscreen render widget.
int GetFullscreenWidgetRoutingID() const;
// Invoked when visible SSL state (as defined by SSLStatus) changes.
void DidChangeVisibleSSLState();
// Informs the render view host and the BrowserPluginEmbedder, if present, of
// a Drag Source End.
void DragSourceEndedAt(int client_x, int client_y, int screen_x,
int screen_y, blink::WebDragOperation operation);
// A response has been received for a resource request.
void DidGetResourceResponseStart(
const ResourceRequestDetails& details);
// A redirect was received while requesting a resource.
void DidGetRedirectForResourceRequest(
RenderFrameHost* render_frame_host,
const ResourceRedirectDetails& details);
// Notify observers that the web contents has been focused.
void NotifyWebContentsFocused();
WebContentsView* GetView() const;
ScreenOrientationDispatcherHost* screen_orientation_dispatcher_host() {
return screen_orientation_dispatcher_host_.get();
}
bool should_normally_be_visible() { return should_normally_be_visible_; }
// Indicate if the window has been occluded, and pass this to the views, only
// if there is no active capture going on (otherwise it is dropped on the
// floor).
void WasOccluded();
void WasUnOccluded();
// Broadcasts the mode change to all frames.
void SetAccessibilityMode(AccessibilityMode mode);
// Adds the given accessibility mode to the current accessibility mode
// bitmap.
void AddAccessibilityMode(AccessibilityMode mode);
// Removes the given accessibility mode from the current accessibility
// mode bitmap, managing the bits that are shared with other modes such
// that a bit will only be turned off when all modes that depend on it
// have been removed.
void RemoveAccessibilityMode(AccessibilityMode mode);
// Request a one-time snapshot of the accessibility tree without changing
// the accessibility mode.
using AXTreeSnapshotCallback =
base::Callback<void(
const ui::AXTreeUpdate&)>;
void RequestAXTreeSnapshot(AXTreeSnapshotCallback callback);
// Set a temporary zoom level for the frames associated with this WebContents.
// If |is_temporary| is true, we are setting a new temporary zoom level,
// otherwise we are clearing a previously set temporary zoom level.
void SetTemporaryZoomLevel(double level, bool temporary_zoom_enabled);
// Sets the zoom level for frames associated with this WebContents.
void UpdateZoom(double level);
// Sets the zoom level for frames associated with this WebContents if it
// matches |host| and (if non-empty) |scheme|. Matching is done on the
// last committed entry.
void UpdateZoomIfNecessary(const std::string& scheme,
const std::string& host,
double level);
// WebContents ------------------------------------------------------
WebContentsDelegate* GetDelegate() override;
void SetDelegate(WebContentsDelegate* delegate) override;
NavigationControllerImpl& GetController() override;
const NavigationControllerImpl& GetController() const override;
BrowserContext* GetBrowserContext() const override;
const GURL& GetURL() const override;
const GURL& GetVisibleURL() const override;
const GURL& GetLastCommittedURL() const override;
RenderProcessHost* GetRenderProcessHost() const override;
RenderFrameHostImpl* GetMainFrame() override;
RenderFrameHostImpl* GetFocusedFrame() override;
RenderFrameHostImpl* FindFrameByFrameTreeNodeId(
int frame_tree_node_id) override;
void ForEachFrame(
const base::Callback<void(RenderFrameHost*)>& on_frame) override;
std::vector<RenderFrameHost*> GetAllFrames() override;
int SendToAllFrames(IPC::Message* message) override;
RenderViewHostImpl* GetRenderViewHost() const override;
int GetRoutingID() const override;
RenderWidgetHostView* GetRenderWidgetHostView() const override;
RenderWidgetHostView* GetTopLevelRenderWidgetHostView() override;
void ClosePage() override;
RenderWidgetHostView* GetFullscreenRenderWidgetHostView() const override;
SkColor GetThemeColor() const override;
WebUI* CreateSubframeWebUI(const GURL& url,
const std::string& frame_name) override;
WebUI* GetWebUI() const override;
WebUI* GetCommittedWebUI() const override;
void SetUserAgentOverride(const std::string& override) override;
const std::string& GetUserAgentOverride() const override;
void EnableTreeOnlyAccessibilityMode() override;
bool IsTreeOnlyAccessibilityModeForTesting() const override;
bool IsFullAccessibilityModeForTesting() const override;
const PageImportanceSignals& GetPageImportanceSignals() const override;
const base::string16& GetTitle() const override;
int32_t GetMaxPageID() override;
int32_t GetMaxPageIDForSiteInstance(SiteInstance* site_instance) override;
SiteInstanceImpl* GetSiteInstance() const override;
SiteInstanceImpl* GetPendingSiteInstance() const override;
bool IsLoading() const override;
bool IsLoadingToDifferentDocument() const override;
bool IsWaitingForResponse() const override;
const net::LoadStateWithParam& GetLoadState() const override;
const base::string16& GetLoadStateHost() const override;
uint64_t GetUploadSize() const override;
uint64_t GetUploadPosition() const override;
const std::string& GetEncoding() const override;
bool DisplayedInsecureContent() const override;
void IncrementCapturerCount(const gfx::Size& capture_size) override;
void DecrementCapturerCount() override;
int GetCapturerCount() const override;
bool IsAudioMuted() const override;
void SetAudioMuted(bool mute) override;
void IncrementBluetoothConnectedDeviceCount();
void DecrementBluetoothConnectedDeviceCount();
bool IsConnectedToBluetoothDevice() const override;
bool IsCrashed() const override;
void SetIsCrashed(base::TerminationStatus status, int error_code) override;
base::TerminationStatus GetCrashedStatus() const override;
int GetCrashedErrorCode() const override;
bool IsBeingDestroyed() const override;
void NotifyNavigationStateChanged(InvalidateTypes changed_flags) override;
base::TimeTicks GetLastActiveTime() const override;
void SetLastActiveTime(base::TimeTicks last_active_time) override;
void WasShown() override;
void WasHidden() override;
bool NeedToFireBeforeUnload() override;
void DispatchBeforeUnload(bool for_cross_site_transition) override;
void AttachToOuterWebContentsFrame(
WebContents* outer_web_contents,
RenderFrameHost* outer_contents_frame) override;
void Stop() override;
WebContents* Clone() override;
void ReloadFocusedFrame(bool bypass_cache) override;
void Undo() override;
void Redo() override;
void Cut() override;
void Copy() override;
void CopyToFindPboard() override;
void Paste() override;
void PasteAndMatchStyle() override;
void Delete() override;
void SelectAll() override;
void Unselect() override;
void Replace(const base::string16& word) override;
void ReplaceMisspelling(const base::string16& word) override;
void NotifyContextMenuClosed(
const CustomContextMenuContext& context) override;
void ReloadLoFiImages() override;
void ExecuteCustomContextMenuCommand(
int action,
const CustomContextMenuContext& context) override;
gfx::NativeView GetNativeView() override;
gfx::NativeView GetContentNativeView() override;
gfx::NativeWindow GetTopLevelNativeWindow() override;
gfx::Rect GetContainerBounds() override;
gfx::Rect GetViewBounds() override;
DropData* GetDropData() override;
void Focus() override;
void SetInitialFocus() override;
void StoreFocus() override;
void RestoreFocus() override;
void FocusThroughTabTraversal(bool reverse) override;
bool ShowingInterstitialPage() const override;
InterstitialPage* GetInterstitialPage() const override;
bool IsSavable() override;
void OnSavePage() override;
bool SavePage(const base::FilePath& main_file,
const base::FilePath& dir_path,
SavePageType save_type) override;
void SaveFrame(const GURL& url, const Referrer& referrer) override;
void SaveFrameWithHeaders(const GURL& url,
const Referrer& referrer,
const std::string& headers) override;
void GenerateMHTML(const base::FilePath& file,
bool use_binary_encoding,
const base::Callback<void(int64_t)>& callback) override;
const std::string& GetContentsMimeType() const override;
bool WillNotifyDisconnection() const override;
void SetOverrideEncoding(const std::string& encoding) override;
void ResetOverrideEncoding() override;
RendererPreferences* GetMutableRendererPrefs() override;
void Close() override;
void SystemDragEnded() override;
void UserGestureDone() override;
void SetClosedByUserGesture(bool value) override;
bool GetClosedByUserGesture() const override;
void ViewSource() override;
void ViewFrameSource(const GURL& url, const PageState& page_state) override;
int GetMinimumZoomPercent() const override;
int GetMaximumZoomPercent() const override;
void SetPageScale(float page_scale_factor) override;
gfx::Size GetPreferredSize() const override;
bool GotResponseToLockMouseRequest(bool allowed) override;
bool HasOpener() const override;
WebContentsImpl* GetOpener() const override;
void DidChooseColorInColorChooser(SkColor color) override;
void DidEndColorChooser() override;
int DownloadImage(const GURL& url,
bool is_favicon,
uint32_t max_bitmap_size,
bool bypass_cache,
const ImageDownloadCallback& callback) override;
bool IsSubframe() const override;
void Find(int request_id,
const base::string16& search_text,
const blink::WebFindOptions& options) override;
void StopFinding(StopFindAction action) override;
void InsertCSS(const std::string& css) override;
bool WasRecentlyAudible() override;
void GetManifest(const GetManifestCallback& callback) override;
void HasManifest(const HasManifestCallback& callback) override;
void ExitFullscreen(bool will_cause_resize) override;
void ResumeLoadingCreatedWebContents() override;
void OnMediaSessionStateChanged();
void ResumeMediaSession() override;
void SuspendMediaSession() override;
void StopMediaSession() override;
#if defined(OS_ANDROID)
base::android::ScopedJavaLocalRef<jobject> GetJavaWebContents() override;
virtual WebContentsAndroid* GetWebContentsAndroid();
void ActivateNearestFindResult(float x, float y) override;
void RequestFindMatchRects(int current_version) override;
#elif defined(OS_MACOSX)
void SetAllowOtherViews(bool allow) override;
bool GetAllowOtherViews() override;
#endif
// Implementation of PageNavigator.
WebContents* OpenURL(const OpenURLParams& params) override;
// Implementation of IPC::Sender.
bool Send(IPC::Message* message) override;
// RenderFrameHostDelegate ---------------------------------------------------
bool OnMessageReceived(RenderFrameHost* render_frame_host,
const IPC::Message& message) override;
const GURL& GetMainFrameLastCommittedURL() const override;
void RenderFrameCreated(RenderFrameHost* render_frame_host) override;
void RenderFrameDeleted(RenderFrameHost* render_frame_host) override;
void ShowContextMenu(RenderFrameHost* render_frame_host,
const ContextMenuParams& params) override;
void RunJavaScriptMessage(RenderFrameHost* render_frame_host,
const base::string16& message,
const base::string16& default_prompt,
const GURL& frame_url,
JavaScriptMessageType type,
IPC::Message* reply_msg) override;
void RunBeforeUnloadConfirm(RenderFrameHost* render_frame_host,
bool is_reload,
IPC::Message* reply_msg) override;
void DidAccessInitialDocument() override;
void DidChangeName(RenderFrameHost* render_frame_host,
const std::string& name) override;
void DocumentOnLoadCompleted(RenderFrameHost* render_frame_host) override;
void UpdateStateForFrame(RenderFrameHost* render_frame_host,
const PageState& page_state) override;
void UpdateTitle(RenderFrameHost* render_frame_host,
int32_t page_id,
const base::string16& title,
base::i18n::TextDirection title_direction) override;
void UpdateEncoding(RenderFrameHost* render_frame_host,
const std::string& encoding) override;
WebContents* GetAsWebContents() override;
bool IsNeverVisible() override;
AccessibilityMode GetAccessibilityMode() const override;
void AccessibilityEventReceived(
const std::vector<AXEventNotificationDetails>& details) override;
RenderFrameHost* GetGuestByInstanceID(
RenderFrameHost* render_frame_host,
int browser_plugin_instance_id) override;
GeolocationServiceContext* GetGeolocationServiceContext() override;
WakeLockServiceContext* GetWakeLockServiceContext() override;
void EnterFullscreenMode(const GURL& origin) override;
void ExitFullscreenMode(bool will_cause_resize) override;
bool ShouldRouteMessageEvent(
RenderFrameHost* target_rfh,
SiteInstance* source_site_instance) const override;
void EnsureOpenerProxiesExist(RenderFrameHost* source_rfh) override;
std::unique_ptr<WebUIImpl> CreateWebUIForRenderFrameHost(
const GURL& url) override;
// RenderViewHostDelegate ----------------------------------------------------
RenderViewHostDelegateView* GetDelegateView() override;
bool OnMessageReceived(RenderViewHost* render_view_host,
const IPC::Message& message) override;
// RenderFrameHostDelegate has the same method, so list it there because this
// interface is going away.
// WebContents* GetAsWebContents() override;
void RenderViewCreated(RenderViewHost* render_view_host) override;
void RenderViewReady(RenderViewHost* render_view_host) override;
void RenderViewTerminated(RenderViewHost* render_view_host,
base::TerminationStatus status,
int error_code) override;
void RenderViewDeleted(RenderViewHost* render_view_host) override;
void UpdateState(RenderViewHost* render_view_host,
int32_t page_id,
const PageState& page_state) override;
void UpdateTargetURL(RenderViewHost* render_view_host,
const GURL& url) override;
void Close(RenderViewHost* render_view_host) override;
void RequestMove(const gfx::Rect& new_bounds) override;
void DidCancelLoading() override;
void DocumentAvailableInMainFrame(RenderViewHost* render_view_host) override;
void RouteCloseEvent(RenderViewHost* rvh) override;
bool AddMessageToConsole(int32_t level,
const base::string16& message,
int32_t line_no,
const base::string16& source_id) override;
RendererPreferences GetRendererPrefs(
BrowserContext* browser_context) const override;
void OnUserInteraction(RenderWidgetHostImpl* render_widget_host,
const blink::WebInputEvent::Type type) override;
void OnIgnoredUIEvent() override;
void LoadStateChanged(const GURL& url,
const net::LoadStateWithParam& load_state,
uint64_t upload_position,
uint64_t upload_size) override;
void Activate() override;
void RunFileChooser(RenderViewHost* render_view_host,
const FileChooserParams& params) override;
void UpdatePreferredSize(const gfx::Size& pref_size) override;
void CreateNewWindow(
SiteInstance* source_site_instance,
int32_t route_id,
int32_t main_frame_route_id,
int32_t main_frame_widget_route_id,
const ViewHostMsg_CreateWindow_Params& params,
SessionStorageNamespace* session_storage_namespace) override;
void CreateNewWidget(int32_t render_process_id,
int32_t route_id,
blink::WebPopupType popup_type) override;
void CreateNewFullscreenWidget(int32_t render_process_id,
int32_t route_id) override;
void ShowCreatedWindow(int route_id,
WindowOpenDisposition disposition,
const gfx::Rect& initial_rect,
bool user_gesture) override;
void ShowCreatedWidget(int route_id, const gfx::Rect& initial_rect) override;
void ShowCreatedFullscreenWidget(int route_id) override;
void RequestMediaAccessPermission(
const MediaStreamRequest& request,
const MediaResponseCallback& callback) override;
bool CheckMediaAccessPermission(const GURL& security_origin,
MediaStreamType type) override;
SessionStorageNamespace* GetSessionStorageNamespace(
SiteInstance* instance) override;
SessionStorageNamespaceMap GetSessionStorageNamespaceMap() override;
FrameTree* GetFrameTree() override;
void SetIsVirtualKeyboardRequested(bool requested) override;
bool IsVirtualKeyboardRequested() override;
bool IsOverridingUserAgent() override;
double GetPendingPageZoomLevel() override;
// NavigatorDelegate ---------------------------------------------------------
void DidStartNavigation(NavigationHandle* navigation_handle) override;
void DidRedirectNavigation(NavigationHandle* navigation_handle) override;
void ReadyToCommitNavigation(NavigationHandle* navigation_handle) override;
void DidFinishNavigation(NavigationHandle* navigation_handle) override;
void DidStartProvisionalLoad(RenderFrameHostImpl* render_frame_host,
const GURL& validated_url,
bool is_error_page,
bool is_iframe_srcdoc) override;
void DidFailProvisionalLoadWithError(
RenderFrameHostImpl* render_frame_host,
const FrameHostMsg_DidFailProvisionalLoadWithError_Params& params)
override;
void DidFailLoadWithError(RenderFrameHostImpl* render_frame_host,
const GURL& url,
int error_code,
const base::string16& error_description,
bool was_ignored_by_handler) override;
void DidCommitProvisionalLoad(RenderFrameHostImpl* render_frame_host,
const GURL& url,
ui::PageTransition transition_type) override;
void DidNavigateMainFramePreCommit(bool navigation_is_within_page) override;
void DidNavigateMainFramePostCommit(
RenderFrameHostImpl* render_frame_host,
const LoadCommittedDetails& details,
const FrameHostMsg_DidCommitProvisionalLoad_Params& params) override;
void DidNavigateAnyFramePostCommit(
RenderFrameHostImpl* render_frame_host,
const LoadCommittedDetails& details,
const FrameHostMsg_DidCommitProvisionalLoad_Params& params) override;
void SetMainFrameMimeType(const std::string& mime_type) override;
bool CanOverscrollContent() const override;
void NotifyChangedNavigationState(InvalidateTypes changed_flags) override;
void DidStartNavigationToPendingEntry(
const GURL& url,
NavigationController::ReloadType reload_type) override;
void RequestOpenURL(RenderFrameHostImpl* render_frame_host,
const OpenURLParams& params) override;
bool ShouldTransferNavigation() override;
bool ShouldPreserveAbortedURLs() override;
void DidStartLoading(FrameTreeNode* frame_tree_node,
bool to_different_document) override;
void DidStopLoading() override;
void DidChangeLoadProgress() override;
// RenderWidgetHostDelegate --------------------------------------------------
void RenderWidgetCreated(RenderWidgetHostImpl* render_widget_host) override;
void RenderWidgetDeleted(RenderWidgetHostImpl* render_widget_host) override;
void RenderWidgetGotFocus(RenderWidgetHostImpl* render_widget_host) override;
void RenderWidgetWasResized(RenderWidgetHostImpl* render_widget_host,
bool width_changed) override;
void ResizeDueToAutoResize(RenderWidgetHostImpl* render_widget_host,
const gfx::Size& new_size) override;
void ScreenInfoChanged() override;
bool PreHandleKeyboardEvent(const NativeWebKeyboardEvent& event,
bool* is_keyboard_shortcut) override;
void HandleKeyboardEvent(const NativeWebKeyboardEvent& event) override;
bool HandleWheelEvent(const blink::WebMouseWheelEvent& event) override;
bool PreHandleGestureEvent(const blink::WebGestureEvent& event) override;
BrowserAccessibilityManager* GetRootBrowserAccessibilityManager() override;
BrowserAccessibilityManager* GetOrCreateRootBrowserAccessibilityManager()
override;
// The following 4 functions are already listed under WebContents overrides:
// void Cut() override;
// void Copy() override;
// void Paste() override;
// void SelectAll() override;
void MoveRangeSelectionExtent(const gfx::Point& extent) override;
void SelectRange(const gfx::Point& base, const gfx::Point& extent) override;
void AdjustSelectionByCharacterOffset(int start_adjust, int end_adjust)
override;
RenderWidgetHostInputEventRouter* GetInputEventRouter() override;
void ReplicatePageFocus(bool is_focused) override;
RenderWidgetHostImpl* GetFocusedRenderWidgetHost(
RenderWidgetHostImpl* receiving_widget) override;
void RendererUnresponsive(RenderWidgetHostImpl* render_widget_host) override;
void RendererResponsive(RenderWidgetHostImpl* render_widget_host) override;
void RequestToLockMouse(RenderWidgetHostImpl* render_widget_host,
bool user_gesture,
bool last_unlocked_by_target) override;
gfx::Rect GetRootWindowResizerRect(
RenderWidgetHostImpl* render_widget_host) const override;
bool IsFullscreenForCurrentTab(
RenderWidgetHostImpl* render_widget_host) const override;
blink::WebDisplayMode GetDisplayMode(
RenderWidgetHostImpl* render_widget_host) const override;
void LostCapture(RenderWidgetHostImpl* render_widget_host) override;
void LostMouseLock(RenderWidgetHostImpl* render_widget_host) override;
void ForwardCompositorProto(RenderWidgetHostImpl* render_widget_host,
const std::vector<uint8_t>& proto) override;
void OnRenderFrameProxyVisibilityChanged(bool visible) override;
void SendScreenRects() override;
// RenderFrameHostManager::Delegate ------------------------------------------
bool CreateRenderViewForRenderManager(
RenderViewHost* render_view_host,
int opener_frame_routing_id,
int proxy_routing_id,
const FrameReplicationState& replicated_frame_state) override;
void CreateRenderWidgetHostViewForRenderManager(
RenderViewHost* render_view_host) override;
bool CreateRenderFrameForRenderManager(
RenderFrameHost* render_frame_host,
int proxy_routing_id,
int opener_routing_id,
int parent_routing_id,
int previous_sibling_routing_id) override;
void BeforeUnloadFiredFromRenderManager(
bool proceed,
const base::TimeTicks& proceed_time,
bool* proceed_to_fire_unload) override;
void RenderProcessGoneFromRenderManager(
RenderViewHost* render_view_host) override;
void UpdateRenderViewSizeForRenderManager() override;
void CancelModalDialogsForRenderManager() override;
void NotifySwappedFromRenderManager(RenderFrameHost* old_host,
RenderFrameHost* new_host,
bool is_main_frame) override;
void NotifyMainFrameSwappedFromRenderManager(
RenderViewHost* old_host,
RenderViewHost* new_host) override;
NavigationControllerImpl& GetControllerForRenderManager() override;
NavigationEntry* GetLastCommittedNavigationEntryForRenderManager() override;
bool FocusLocationBarByDefault() override;
void SetFocusToLocationBar(bool select_all) override;
bool IsHidden() override;
int GetOuterDelegateFrameTreeNodeId() override;
// NotificationObserver ------------------------------------------------------
void Observe(int type,
const NotificationSource& source,
const NotificationDetails& details) override;
// NavigationControllerDelegate ----------------------------------------------
WebContents* GetWebContents() override;
void NotifyNavigationEntryCommitted(
const LoadCommittedDetails& load_details) override;
// Invoked before a form repost warning is shown.
void NotifyBeforeFormRepostWarningShow() override;
// Activate this WebContents and show a form repost warning.
void ActivateAndShowRepostFormWarningDialog() override;
// Whether the initial empty page of this view has been accessed by another
// page, making it unsafe to show the pending URL. Always false after the
// first commit.
bool HasAccessedInitialDocument() override;
// Updates the max page ID for the current SiteInstance in this
// WebContentsImpl to be at least |page_id|.
void UpdateMaxPageID(int32_t page_id) override;
// Updates the max page ID for the given SiteInstance in this WebContentsImpl
// to be at least |page_id|.
void UpdateMaxPageIDForSiteInstance(SiteInstance* site_instance,
int32_t page_id) override;
// Copy the current map of SiteInstance ID to max page ID from another tab.
// This is necessary when this tab adopts the NavigationEntries from
// |web_contents|.
void CopyMaxPageIDsFrom(WebContents* web_contents) override;
// Sets the history for this WebContentsImpl to |history_length| entries, with
// an offset of |history_offset|.
void SetHistoryOffsetAndLength(int history_offset,
int history_length) override;
// Called by InterstitialPageImpl when it creates a RenderFrameHost.
void RenderFrameForInterstitialPageCreated(
RenderFrameHost* render_frame_host) override;
// Sets the passed interstitial as the currently showing interstitial.
// No interstitial page should already be attached.
void AttachInterstitialPage(InterstitialPageImpl* interstitial_page) override;
// Unsets the currently showing interstitial.
void DetachInterstitialPage() override;
void UpdateOverridingUserAgent() override;
// Unpause the throbber if it was paused.
void DidProceedOnInterstitial() override;
typedef base::Callback<void(WebContents*)> CreatedCallback;
// Forces overscroll to be disabled (used by touch emulation).
void SetForceDisableOverscrollContent(bool force_disable);
AudioStreamMonitor* audio_stream_monitor() {
return &audio_stream_monitor_;
}
// Called by MediaWebContentsObserver when playback starts or stops. See the
// WebContentsObserver function stubs for more details.
void MediaStartedPlaying(const WebContentsObserver::MediaPlayerId& id);
void MediaStoppedPlaying(const WebContentsObserver::MediaPlayerId& id);
MediaWebContentsObserver* media_web_contents_observer() {
return media_web_contents_observer_.get();
}
// Update the web contents visibility.
void UpdateWebContentsVisibility(bool visible);
// Called by FindRequestManager when find replies come in from a renderer
// process.
void NotifyFindReply(int request_id,
int number_of_matches,
const gfx::Rect& selection_rect,
int active_match_ordinal,
bool final_update);
#if defined(OS_ANDROID)
// Called by FindRequestManager when all of the find match rects are in.
void NotifyFindMatchRectsReply(int version,
const std::vector<gfx::RectF>& rects,
const gfx::RectF& active_rect);
#endif
private:
friend class WebContentsObserver;
friend class WebContents; // To implement factory methods.
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, NoJSMessageOnInterstitials);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, UpdateTitle);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, FindOpenerRVHWhenPending);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest,
CrossSiteCantPreemptAfterUnload);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, PendingContents);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, FrameTreeShape);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, GetLastActiveTime);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest,
LoadResourceFromMemoryCacheWithBadSecurityInfo);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest,
LoadResourceFromMemoryCacheWithEmptySecurityInfo);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest,
ResetJavaScriptDialogOnUserNavigate);
FRIEND_TEST_ALL_PREFIXES(FormStructureBrowserTest, HTMLFiles);
FRIEND_TEST_ALL_PREFIXES(NavigationControllerTest, HistoryNavigate);
FRIEND_TEST_ALL_PREFIXES(RenderFrameHostManagerTest, PageDoesBackAndReload);
FRIEND_TEST_ALL_PREFIXES(SitePerProcessBrowserTest, CrossSiteIframe);
FRIEND_TEST_ALL_PREFIXES(SitePerProcessAccessibilityBrowserTest,
CrossSiteIframeAccessibility);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplBrowserTest,
JavaScriptDialogsInMainAndSubframes);
// So InterstitialPageImpl can access SetIsLoading.
friend class InterstitialPageImpl;
// TODO(brettw) TestWebContents shouldn't exist!
friend class TestWebContents;
class DestructionObserver;
// Represents a WebContents node in a tree of WebContents structure.
//
// Two WebContents with separate FrameTrees can be connected by
// outer/inner relationship using this class. Note that their FrameTrees
// still remain disjoint.
// The parent is referred to as "outer WebContents" and the descendents are
// referred to as "inner WebContents".
// For each inner WebContents, the outer WebContents will have a
// corresponding FrameTreeNode.
struct WebContentsTreeNode {
public:
WebContentsTreeNode();
~WebContentsTreeNode();
typedef std::set<WebContentsTreeNode*> ChildrenSet;
void ConnectToOuterWebContents(WebContentsImpl* outer_web_contents,
RenderFrameHostImpl* outer_contents_frame);
WebContentsImpl* outer_web_contents() { return outer_web_contents_; }
int outer_contents_frame_tree_node_id() {
return outer_contents_frame_tree_node_id_;
}
private:
// The outer WebContents.
WebContentsImpl* outer_web_contents_;
// The ID of the FrameTreeNode in outer WebContents that is hosting us.
int outer_contents_frame_tree_node_id_;
// List of inner WebContents that we host.
ChildrenSet inner_web_contents_tree_nodes_;
};
// See WebContents::Create for a description of these parameters.
WebContentsImpl(BrowserContext* browser_context);
// Add and remove observers for page navigation notifications. The order in
// which notifications are sent to observers is undefined. Clients must be
// sure to remove the observer before they go away.
void AddObserver(WebContentsObserver* observer);
void RemoveObserver(WebContentsObserver* observer);
// Clears a pending contents that has been closed before being shown.
void OnWebContentsDestroyed(WebContentsImpl* web_contents);
// Creates and adds to the map a destruction observer watching |web_contents|.
// No-op if such an observer already exists.
void AddDestructionObserver(WebContentsImpl* web_contents);
// Deletes and removes from the map a destruction observer
// watching |web_contents|. No-op if there is no such observer.
void RemoveDestructionObserver(WebContentsImpl* web_contents);
// Traverses all the RenderFrameHosts in the FrameTree and creates a set
// all the unique RenderWidgetHostViews.
std::set<RenderWidgetHostView*> GetRenderWidgetHostViewsInTree();
// Called with the result of a DownloadImage() request.
void OnDidDownloadImage(const ImageDownloadCallback& callback,
int id,
const GURL& image_url,
int32_t http_status_code,
mojo::Array<skia::mojom::BitmapPtr> images,
mojo::Array<mojo::SizePtr> original_image_sizes);
// Callback function when showing JavaScript dialogs. Takes in a routing ID
// pair to identify the RenderFrameHost that opened the dialog, because it's
// possible for the RenderFrameHost to be deleted by the time this is called.
void OnDialogClosed(int render_process_id,
int render_frame_id,
IPC::Message* reply_msg,
bool dialog_was_suppressed,
bool success,
const base::string16& user_input);
bool OnMessageReceived(RenderViewHost* render_view_host,
RenderFrameHost* render_frame_host,
const IPC::Message& message);
// Checks whether render_frame_message_source_ is set to non-null value,
// otherwise it terminates the main frame renderer process.
bool HasValidFrameSource();
// IPC message handlers.
void OnThemeColorChanged(SkColor theme_color);
void OnDidLoadResourceFromMemoryCache(const GURL& url,
const std::string& security_info,
const std::string& http_request,
const std::string& mime_type,
ResourceType resource_type);
void OnDidDisplayInsecureContent();
void OnDidRunInsecureContent(const GURL& security_origin,
const GURL& target_url);
void OnDidDisplayContentWithCertificateErrors(
const GURL& url,
const std::string& security_info);
void OnDidRunContentWithCertificateErrors(const GURL& security_origin,
const GURL& url,
const std::string& security_info);
void OnDocumentLoadedInFrame();
void OnDidFinishLoad(const GURL& url);
void OnGoToEntryAtOffset(int offset);
void OnUpdateZoomLimits(int minimum_percent,
int maximum_percent);
void OnPageScaleFactorChanged(float page_scale_factor);
void OnEnumerateDirectory(int request_id, const base::FilePath& path);
void OnRegisterProtocolHandler(const std::string& protocol,
const GURL& url,
const base::string16& title,
bool user_gesture);
void OnUnregisterProtocolHandler(const std::string& protocol,
const GURL& url,
bool user_gesture);
void OnFindReply(int request_id,
int number_of_matches,
const gfx::Rect& selection_rect,
int active_match_ordinal,
bool final_update);
#if defined(OS_ANDROID)
void OnFindMatchRectsReply(int version,
const std::vector<gfx::RectF>& rects,
const gfx::RectF& active_rect);
void OnGetNearestFindResultReply(int request_id, float distance);
void OnOpenDateTimeDialog(
const ViewHostMsg_DateTimeDialogValue_Params& value);
#endif
void OnDomOperationResponse(const std::string& json_string);
void OnAppCacheAccessed(const GURL& manifest_url, bool blocked_by_policy);
void OnOpenColorChooser(int color_chooser_id,
SkColor color,
const std::vector<ColorSuggestion>& suggestions);
void OnEndColorChooser(int color_chooser_id);
void OnSetSelectedColorInColorChooser(int color_chooser_id, SkColor color);
void OnWebUISend(const GURL& source_url,
const std::string& name,
const base::ListValue& args);
void OnUpdatePageImportanceSignals(const PageImportanceSignals& signals);
#if defined(ENABLE_PLUGINS)
void OnPepperInstanceCreated();
void OnPepperInstanceDeleted();
void OnPepperPluginHung(int plugin_child_id,
const base::FilePath& path,
bool is_hung);
void OnPluginCrashed(const base::FilePath& plugin_path,
base::ProcessId plugin_pid);
void OnRequestPpapiBrokerPermission(int routing_id,
const GURL& url,
const base::FilePath& plugin_path);
// Callback function when requesting permission to access the PPAPI broker.
// |result| is true if permission was granted.
void OnPpapiBrokerPermissionResult(int routing_id, bool result);
void OnBrowserPluginMessage(RenderFrameHost* render_frame_host,
const IPC::Message& message);
#endif // defined(ENABLE_PLUGINS)
void OnUpdateFaviconURL(const std::vector<FaviconURL>& candidates);
void OnFirstVisuallyNonEmptyPaint();
void OnShowValidationMessage(const gfx::Rect& anchor_in_root_view,
const base::string16& main_text,
const base::string16& sub_text);
void OnHideValidationMessage();
void OnMoveValidationMessage(const gfx::Rect& anchor_in_root_view);
// Called by derived classes to indicate that we're no longer waiting for a
// response. This won't actually update the throbber, but it will get picked
// up at the next animation step if the throbber is going.
void SetNotWaitingForResponse() { waiting_for_response_ = false; }
// Navigation helpers --------------------------------------------------------
//
// These functions are helpers for Navigate() and DidNavigate().
// Handles post-navigation tasks in DidNavigate AFTER the entry has been
// committed to the navigation controller. Note that the navigation entry is
// not provided since it may be invalid/changed after being committed. The
// current navigation entry is in the NavigationController at this point.
// If our controller was restored, update the max page ID associated with the
// given RenderViewHost to be larger than the number of restored entries.
// This is called in CreateRenderView before any navigations in the RenderView
// have begun, to prevent any races in updating RenderView::next_page_id.
void UpdateMaxPageIDIfNecessary(RenderViewHost* rvh);
// Saves the given title to the navigation entry and does associated work. It
// will update history and the view for the new title, and also synthesize
// titles for file URLs that have none (so we require that the URL of the
// entry already be set).
//
// This is used as the backend for state updates, which include a new title,
// or the dedicated set title message. It returns true if the new title is
// different and was therefore updated.
bool UpdateTitleForEntry(NavigationEntryImpl* entry,
const base::string16& title);
// Helper for CreateNewWidget/CreateNewFullscreenWidget.
void CreateNewWidget(int32_t render_process_id,
int32_t route_id,
bool is_fullscreen,
blink::WebPopupType popup_type);
// Helper for ShowCreatedWidget/ShowCreatedFullscreenWidget.
void ShowCreatedWidget(int route_id,
bool is_fullscreen,
const gfx::Rect& initial_rect);
// Finds the new RenderWidgetHost and returns it. Note that this can only be
// called once as this call also removes it from the internal map.
RenderWidgetHostView* GetCreatedWidget(int route_id);
// Finds the new WebContentsImpl by route_id, initializes it for
// renderer-initiated creation, and returns it. Note that this can only be
// called once as this call also removes it from the internal map.
WebContentsImpl* GetCreatedWindow(int route_id);
// Sends a Page message IPC.
void SendPageMessage(IPC::Message* msg);
// Tracking loading progress -------------------------------------------------
// Resets the tracking state of the current load progress.
void ResetLoadProgressState();
// Notifies the delegate that the load progress was updated.
void SendChangeLoadProgress();
// Notifies the delegate of a change in loading state.
// |details| is used to provide details on the load that just finished
// (but can be null if not applicable).
// |due_to_interstitial| is true if the change in load state occurred because
// an interstitial page started showing/proceeded.
void LoadingStateChanged(bool to_different_document,
bool due_to_interstitial,
LoadNotificationDetails* details);
// Misc non-view stuff -------------------------------------------------------
// Sets the history for a specified RenderViewHost to |history_length|
// entries, with an offset of |history_offset|.
void SetHistoryOffsetAndLengthForView(RenderViewHost* render_view_host,
int history_offset,
int history_length);
// Helper functions for sending notifications.
void NotifyViewSwapped(RenderViewHost* old_host, RenderViewHost* new_host);
void NotifyFrameSwapped(RenderFrameHost* old_host, RenderFrameHost* new_host);
void NotifyDisconnected();
void SetEncoding(const std::string& encoding);
// TODO(creis): This should take in a FrameTreeNode to know which node's
// render manager to return. For now, we just return the root's.
RenderFrameHostManager* GetRenderManager() const;
// Removes browser plugin embedder if there is one.
void RemoveBrowserPluginEmbedder();
// Helper function to invoke WebContentsDelegate::GetSizeForNewRenderView().
gfx::Size GetSizeForNewRenderView();
void OnFrameRemoved(RenderFrameHost* render_frame_host);
// Helper method that's called whenever |preferred_size_| or
// |preferred_size_for_capture_| changes, to propagate the new value to the
// |delegate_|.
void OnPreferredSizeChanged(const gfx::Size& old_size);
// Internal helper to create WebUI objects associated with |this|. |url| is
// used to determine which WebUI should be created (if any). |frame_name|
// corresponds to the name of a frame that the WebUI should be created for (or
// the main frame if empty).
WebUI* CreateWebUI(const GURL& url, const std::string& frame_name);
void SetJavaScriptDialogManagerForTesting(
JavaScriptDialogManager* dialog_manager);
// Returns the FindRequestManager, or creates one if it doesn't already exist.
FindRequestManager* GetOrCreateFindRequestManager();
// Data for core operation ---------------------------------------------------
// Delegate for notifying our owner about stuff. Not owned by us.
WebContentsDelegate* delegate_;
// Handles the back/forward list and loading.
NavigationControllerImpl controller_;
// The corresponding view.
std::unique_ptr<WebContentsView> view_;
// The view of the RVHD. Usually this is our WebContentsView implementation,
// but if an embedder uses a different WebContentsView, they'll need to
// provide this.
RenderViewHostDelegateView* render_view_host_delegate_view_;
// Tracks created WebContentsImpl objects that have not been shown yet. They
// are identified by the route ID passed to CreateNewWindow.
typedef std::map<int, WebContentsImpl*> PendingContents;
PendingContents pending_contents_;
// These maps hold on to the widgets that we created on behalf of the renderer
// that haven't shown yet.
typedef std::map<int, RenderWidgetHostView*> PendingWidgetViews;
PendingWidgetViews pending_widget_views_;
typedef std::map<WebContentsImpl*, DestructionObserver*> DestructionObservers;
DestructionObservers destruction_observers_;
// A list of observers notified when page state changes. Weak references.
// This MUST be listed above frame_tree_ since at destruction time the
// latter might cause RenderViewHost's destructor to call us and we might use
// the observer list then.
base::ObserverList<WebContentsObserver> observers_;
// True if this tab was opened by another tab. This is not unset if the opener
// is closed.
bool created_with_opener_;
// Helper classes ------------------------------------------------------------
// Manages the frame tree of the page and process swaps in each node.
FrameTree frame_tree_;
// If this WebContents is part of a "tree of WebContents", then this contains
// information about the structure.
std::unique_ptr<WebContentsTreeNode> node_;
// SavePackage, lazily created.
scoped_refptr<SavePackage> save_package_;
// Manages/coordinates find-in-page requests. Created lazily.
std::unique_ptr<FindRequestManager> find_request_manager_;
// Data for loading state ----------------------------------------------------
// Indicates whether the current load is to a different document. Only valid
// if is_loading_ is true.
bool is_load_to_different_document_;
// Indicates if the tab is considered crashed.
base::TerminationStatus crashed_status_;
int crashed_error_code_;
// Whether this WebContents is waiting for a first-response for the
// main resource of the page. This controls whether the throbber state is
// "waiting" or "loading."
bool waiting_for_response_;
// Map of SiteInstance ID to max page ID for this tab. A page ID is specific
// to a given tab and SiteInstance, and must be valid for the lifetime of the
// WebContentsImpl.
std::map<int32_t, int32_t> max_page_ids_;
// The current load state and the URL associated with it.
net::LoadStateWithParam load_state_;
base::string16 load_state_host_;
base::TimeTicks loading_last_progress_update_;
// Upload progress, for displaying in the status bar.
// Set to zero when there is no significant upload happening.
uint64_t upload_size_;
uint64_t upload_position_;
// Tracks that this WebContents needs to unblock requests to the renderer.
// See ResumeLoadingCreatedWebContents.
bool is_resume_pending_;
// Data for current page -----------------------------------------------------
// When a title cannot be taken from any entry, this title will be used.
base::string16 page_title_when_no_navigation_entry_;
// When a navigation occurs, we record its contents MIME type. It can be
// used to check whether we can do something for some special contents.
std::string contents_mime_type_;
// The last reported character encoding, not canonicalized.
std::string last_reported_encoding_;
// The canonicalized character encoding.
std::string canonical_encoding_;
// True if this is a secure page which displayed insecure content.
bool displayed_insecure_content_;
// Whether the initial empty page has been accessed by another page, making it
// unsafe to show the pending URL. Usually false unless another window tries
// to modify the blank page. Always false after the first commit.
bool has_accessed_initial_document_;
// The theme color for the underlying document as specified
// by theme-color meta tag.
SkColor theme_color_;
// The last published theme color.
SkColor last_sent_theme_color_;
// Whether the first visually non-empty paint has occurred.
bool did_first_visually_non_empty_paint_;
// Data for misc internal state ----------------------------------------------
// When > 0, the WebContents is currently being captured (e.g., for
// screenshots or mirroring); and the underlying RenderWidgetHost should not
// be told it is hidden.
int capturer_count_;
// Tracks whether RWHV should be visible once capturer_count_ becomes zero.
bool should_normally_be_visible_;
// Tracks whether this WebContents was ever set to be visible. Used to
// facilitate WebContents being loaded in the background by setting
// |should_normally_be_visible_|. Ensures WasShown() will trigger when first
// becoming visible to the user, and prevents premature unloading.
bool did_first_set_visible_;
// See getter above.
bool is_being_destroyed_;
// Indicates whether we should notify about disconnection of this
// WebContentsImpl. This is used to ensure disconnection notifications only
// happen if a connection notification has happened and that they happen only
// once.
bool notify_disconnection_;
// Pointer to the JavaScript dialog manager, lazily assigned. Used because the
// delegate of this WebContentsImpl is nulled before its destructor is called.
JavaScriptDialogManager* dialog_manager_;
// Set to true when there is an active "before unload" dialog. When true,
// we've forced the throbber to start in Navigate, and we need to remember to
// turn it off in OnJavaScriptMessageBoxClosed if the navigation is canceled.
bool is_showing_before_unload_dialog_;
// Settings that get passed to the renderer process.
RendererPreferences renderer_preferences_;
// The time that this WebContents was last made active. The initial value is
// the WebContents creation time.
base::TimeTicks last_active_time_;
// See description above setter.
bool closed_by_user_gesture_;
// Minimum/maximum zoom percent.
int minimum_zoom_percent_;
int maximum_zoom_percent_;
// Used to correctly handle integer zooming through a smooth scroll device.
float zoom_scroll_remainder_;
// The intrinsic size of the page.
gfx::Size preferred_size_;
// The preferred size for content screen capture. When |capturer_count_| > 0,
// this overrides |preferred_size_|.
gfx::Size preferred_size_for_capture_;
#if defined(OS_ANDROID)
// Date time chooser opened by this tab.
// Only used in Android since all other platforms use a multi field UI.
std::unique_ptr<DateTimeChooserAndroid> date_time_chooser_;
#endif
// Holds information about a current color chooser dialog, if one is visible.
struct ColorChooserInfo {
ColorChooserInfo(int render_process_id,
int render_frame_id,
ColorChooser* chooser,
int identifier);
~ColorChooserInfo();
int render_process_id;
int render_frame_id;
// Color chooser that was opened by this tab.
std::unique_ptr<ColorChooser> chooser;
// A unique identifier for the current color chooser. Identifiers are
// unique across a renderer process. This avoids race conditions in
// synchronizing the browser and renderer processes. For example, if a
// renderer closes one chooser and opens another, and simultaneously the
// user picks a color in the first chooser, the IDs can be used to drop the
// "chose a color" message rather than erroneously tell the renderer that
// the user picked a color in the second chooser.
int identifier;
};
std::unique_ptr<ColorChooserInfo> color_chooser_info_;
// Manages the embedder state for browser plugins, if this WebContents is an
// embedder; NULL otherwise.
std::unique_ptr<BrowserPluginEmbedder> browser_plugin_embedder_;
// Manages the guest state for browser plugin, if this WebContents is a guest;
// NULL otherwise.
std::unique_ptr<BrowserPluginGuest> browser_plugin_guest_;
#if defined(ENABLE_PLUGINS)
// Manages the whitelist of plugin content origins exempt from power saving.
std::unique_ptr<PluginContentOriginWhitelist>
plugin_content_origin_whitelist_;
#endif
// This must be at the end, or else we might get notifications and use other
// member variables that are gone.
NotificationRegistrar registrar_;
// Used during IPC message dispatching from the RenderView/RenderFrame so that
// the handlers can get a pointer to the RVH through which the message was
// received.
RenderViewHost* render_view_message_source_;
RenderFrameHost* render_frame_message_source_;
// All live RenderWidgetHostImpls that are created by this object and may
// outlive it.
std::set<RenderWidgetHostImpl*> created_widgets_;
// Routing id of the shown fullscreen widget or MSG_ROUTING_NONE otherwise.
int fullscreen_widget_routing_id_;
// At the time the fullscreen widget was being shut down, did it have focus?
// This is used to restore focus to the WebContentsView after both: 1) the
// fullscreen widget is destroyed, and 2) the WebContentsDelegate has
// completed making layout changes to effect an exit from fullscreen mode.
bool fullscreen_widget_had_focus_at_shutdown_;
// Whether this WebContents is responsible for displaying a subframe in a
// different process from its parent page.
bool is_subframe_;
// When a new tab is created asynchronously, stores the OpenURLParams needed
// to continue loading the page once the tab is ready.
std::unique_ptr<OpenURLParams> delayed_open_url_params_;
// Whether overscroll should be unconditionally disabled.
bool force_disable_overscroll_content_;
// Whether the last JavaScript dialog shown was suppressed. Used for testing.
bool last_dialog_suppressed_;
std::unique_ptr<GeolocationServiceContext> geolocation_service_context_;
std::unique_ptr<WakeLockServiceContext> wake_lock_service_context_;
std::unique_ptr<ScreenOrientationDispatcherHost>
screen_orientation_dispatcher_host_;
std::unique_ptr<ManifestManagerHost> manifest_manager_host_;
// The accessibility mode for all frames. This is queried when each frame
// is created, and broadcast to all frames when it changes.
AccessibilityMode accessibility_mode_;
// Monitors power levels for audio streams associated with this WebContents.
AudioStreamMonitor audio_stream_monitor_;
// Created on-demand to mute all audio output from this WebContents.
std::unique_ptr<WebContentsAudioMuter> audio_muter_;
size_t bluetooth_connected_device_count_;
bool virtual_keyboard_requested_;
// Notifies ResourceDispatcherHostImpl of various events related to loading.
std::unique_ptr<LoaderIOThreadNotifier> loader_io_thread_notifier_;
// Manages media players, CDMs, and power save blockers for media.
std::unique_ptr<MediaWebContentsObserver> media_web_contents_observer_;
std::unique_ptr<RenderWidgetHostInputEventRouter> rwh_input_event_router_;
PageImportanceSignals page_importance_signals_;
bool page_scale_factor_is_one_;
base::WeakPtrFactory<WebContentsImpl> loading_weak_factory_;
base::WeakPtrFactory<WebContentsImpl> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(WebContentsImpl);
};
// Dangerous methods which should never be made part of the public API, so we
// grant their use only to an explicit friend list (c++ attorney/client idiom).
class CONTENT_EXPORT WebContentsImpl::FriendZone {
private:
friend class TestNavigationObserver;
friend class WebContentsAddedObserver;
friend class ContentBrowserSanityChecker;
FriendZone(); // Not instantiable.
// Adds/removes a callback called on creation of each new WebContents.
static void AddCreatedCallbackForTesting(const CreatedCallback& callback);
static void RemoveCreatedCallbackForTesting(const CreatedCallback& callback);
DISALLOW_COPY_AND_ASSIGN(FriendZone);
};
} // namespace content
#endif // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_