1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_ 6 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_ 7 8 #include <map> 9 #include <set> 10 #include <string> 11 12 #include "base/compiler_specific.h" 13 #include "base/gtest_prod_util.h" 14 #include "base/memory/scoped_ptr.h" 15 #include "base/observer_list.h" 16 #include "base/process/process.h" 17 #include "base/values.h" 18 #include "content/browser/frame_host/frame_tree.h" 19 #include "content/browser/frame_host/navigation_controller_delegate.h" 20 #include "content/browser/frame_host/navigation_controller_impl.h" 21 #include "content/browser/frame_host/navigator_delegate.h" 22 #include "content/browser/frame_host/render_frame_host_delegate.h" 23 #include "content/browser/frame_host/render_frame_host_manager.h" 24 #include "content/browser/renderer_host/render_view_host_delegate.h" 25 #include "content/browser/renderer_host/render_widget_host_delegate.h" 26 #include "content/common/content_export.h" 27 #include "content/public/browser/color_chooser.h" 28 #include "content/public/browser/notification_observer.h" 29 #include "content/public/browser/notification_registrar.h" 30 #include "content/public/browser/web_contents.h" 31 #include "content/public/common/page_transition_types.h" 32 #include "content/public/common/renderer_preferences.h" 33 #include "content/public/common/three_d_api_types.h" 34 #include "net/base/load_states.h" 35 #include "third_party/WebKit/public/web/WebDragOperation.h" 36 #include "ui/gfx/rect_f.h" 37 #include "ui/gfx/size.h" 38 #include "webkit/common/resource_type.h" 39 40 struct BrowserPluginHostMsg_ResizeGuest_Params; 41 struct ViewHostMsg_DateTimeDialogValue_Params; 42 struct ViewMsg_PostMessage_Params; 43 44 namespace content { 45 class BrowserPluginEmbedder; 46 class BrowserPluginGuest; 47 class BrowserPluginGuestManager; 48 class DateTimeChooserAndroid; 49 class DownloadItem; 50 class GeolocationDispatcherHost; 51 class InterstitialPageImpl; 52 class JavaScriptDialogManager; 53 class MidiDispatcherHost; 54 class PowerSaveBlocker; 55 class RenderViewHost; 56 class RenderViewHostDelegateView; 57 class RenderViewHostImpl; 58 class RenderWidgetHostImpl; 59 class SavePackage; 60 class ScreenOrientationDispatcherHost; 61 class SiteInstance; 62 class TestWebContents; 63 class WebContentsDelegate; 64 class WebContentsImpl; 65 class WebContentsObserver; 66 class WebContentsView; 67 class WebContentsViewDelegate; 68 struct AXEventNotificationDetails; 69 struct ColorSuggestion; 70 struct FaviconURL; 71 struct LoadNotificationDetails; 72 struct ResourceRedirectDetails; 73 struct ResourceRequestDetails; 74 75 // Factory function for the implementations that content knows about. Takes 76 // ownership of |delegate|. 77 WebContentsView* CreateWebContentsView( 78 WebContentsImpl* web_contents, 79 WebContentsViewDelegate* delegate, 80 RenderViewHostDelegateView** render_view_host_delegate_view); 81 82 class CONTENT_EXPORT WebContentsImpl NON_EXPORTED_BASE(WebContents)83 : public NON_EXPORTED_BASE(WebContents), 84 public NON_EXPORTED_BASE(RenderFrameHostDelegate), 85 public RenderViewHostDelegate, 86 public RenderWidgetHostDelegate, 87 public RenderFrameHostManager::Delegate, 88 public NotificationObserver, 89 public NON_EXPORTED_BASE(NavigationControllerDelegate), 90 public NON_EXPORTED_BASE(NavigatorDelegate) { 91 public: 92 virtual ~WebContentsImpl(); 93 94 static WebContentsImpl* CreateWithOpener( 95 const WebContents::CreateParams& params, 96 WebContentsImpl* opener); 97 98 // Returns the opener WebContentsImpl, if any. This can be set to null if the 99 // opener is closed or the page clears its window.opener. 100 WebContentsImpl* opener() const { return opener_; } 101 102 // Creates a swapped out RenderView. This is used by the browser plugin to 103 // create a swapped out RenderView in the embedder render process for the 104 // guest, to expose the guest's window object to the embedder. 105 // This returns the routing ID of the newly created swapped out RenderView. 106 int CreateSwappedOutRenderView(SiteInstance* instance); 107 108 // Complex initialization here. Specifically needed to avoid having 109 // members call back into our virtual functions in the constructor. 110 virtual void Init(const WebContents::CreateParams& params); 111 112 // Returns the SavePackage which manages the page saving job. May be NULL. 113 SavePackage* save_package() const { return save_package_.get(); } 114 115 #if defined(OS_ANDROID) 116 // In Android WebView, the RenderView needs created even there is no 117 // navigation entry, this allows Android WebViews to use 118 // javascript: URLs that load into the DOMWindow before the first page 119 // load. This is not safe to do in any context that a web page could get a 120 // reference to the DOMWindow before the first page load. 121 bool CreateRenderViewForInitialEmptyDocument(); 122 #endif 123 124 // Expose the render manager for testing. 125 // TODO(creis): Remove this now that we can get to it via FrameTreeNode. 126 RenderFrameHostManager* GetRenderManagerForTesting(); 127 128 // Returns guest browser plugin object, or NULL if this WebContents is not a 129 // guest. 130 BrowserPluginGuest* GetBrowserPluginGuest() const; 131 132 // Sets a BrowserPluginGuest object for this WebContents. If this WebContents 133 // has a BrowserPluginGuest then that implies that it is being hosted by 134 // a BrowserPlugin object in an embedder renderer process. 135 void SetBrowserPluginGuest(BrowserPluginGuest* guest); 136 137 // Returns embedder browser plugin object, or NULL if this WebContents is not 138 // an embedder. 139 BrowserPluginEmbedder* GetBrowserPluginEmbedder() const; 140 141 // Gets the current fullscreen render widget's routing ID. Returns 142 // MSG_ROUTING_NONE when there is no fullscreen render widget. 143 int GetFullscreenWidgetRoutingID() const; 144 145 // Invoked when visible SSL state (as defined by SSLStatus) changes. 146 void DidChangeVisibleSSLState(); 147 148 // Informs the render view host and the BrowserPluginEmbedder, if present, of 149 // a Drag Source End. 150 void DragSourceEndedAt(int client_x, int client_y, int screen_x, 151 int screen_y, blink::WebDragOperation operation); 152 153 // A response has been received for a resource request. 154 void DidGetResourceResponseStart( 155 const ResourceRequestDetails& details); 156 157 // A redirect was received while requesting a resource. 158 void DidGetRedirectForResourceRequest( 159 RenderViewHost* render_view_host, 160 const ResourceRedirectDetails& details); 161 162 WebContentsView* GetView() const; 163 164 GeolocationDispatcherHost* geolocation_dispatcher_host() { 165 return geolocation_dispatcher_host_.get(); 166 } 167 168 bool should_normally_be_visible() { return should_normally_be_visible_; } 169 170 // WebContents ------------------------------------------------------ 171 virtual WebContentsDelegate* GetDelegate() OVERRIDE; 172 virtual void SetDelegate(WebContentsDelegate* delegate) OVERRIDE; 173 virtual NavigationControllerImpl& GetController() OVERRIDE; 174 virtual const NavigationControllerImpl& GetController() const OVERRIDE; 175 virtual BrowserContext* GetBrowserContext() const OVERRIDE; 176 virtual const GURL& GetURL() const OVERRIDE; 177 virtual const GURL& GetVisibleURL() const OVERRIDE; 178 virtual const GURL& GetLastCommittedURL() const OVERRIDE; 179 virtual RenderProcessHost* GetRenderProcessHost() const OVERRIDE; 180 virtual RenderFrameHost* GetMainFrame() OVERRIDE; 181 virtual RenderFrameHost* GetFocusedFrame() OVERRIDE; 182 virtual void ForEachFrame( 183 const base::Callback<void(RenderFrameHost*)>& on_frame) OVERRIDE; 184 virtual void SendToAllFrames(IPC::Message* message) OVERRIDE; 185 virtual RenderViewHost* GetRenderViewHost() const OVERRIDE; 186 virtual int GetRoutingID() const OVERRIDE; 187 virtual RenderWidgetHostView* GetRenderWidgetHostView() const OVERRIDE; 188 virtual RenderWidgetHostView* GetFullscreenRenderWidgetHostView() const 189 OVERRIDE; 190 virtual WebUI* CreateWebUI(const GURL& url) OVERRIDE; 191 virtual WebUI* GetWebUI() const OVERRIDE; 192 virtual WebUI* GetCommittedWebUI() const OVERRIDE; 193 virtual void SetUserAgentOverride(const std::string& override) OVERRIDE; 194 virtual const std::string& GetUserAgentOverride() const OVERRIDE; 195 #if defined(OS_WIN) 196 virtual void SetParentNativeViewAccessible( 197 gfx::NativeViewAccessible accessible_parent) OVERRIDE; 198 #endif 199 virtual const base::string16& GetTitle() const OVERRIDE; 200 virtual int32 GetMaxPageID() OVERRIDE; 201 virtual int32 GetMaxPageIDForSiteInstance( 202 SiteInstance* site_instance) OVERRIDE; 203 virtual SiteInstance* GetSiteInstance() const OVERRIDE; 204 virtual SiteInstance* GetPendingSiteInstance() const OVERRIDE; 205 virtual bool IsLoading() const OVERRIDE; 206 virtual bool IsLoadingToDifferentDocument() const OVERRIDE; 207 virtual bool IsWaitingForResponse() const OVERRIDE; 208 virtual const net::LoadStateWithParam& GetLoadState() const OVERRIDE; 209 virtual const base::string16& GetLoadStateHost() const OVERRIDE; 210 virtual uint64 GetUploadSize() const OVERRIDE; 211 virtual uint64 GetUploadPosition() const OVERRIDE; 212 virtual std::set<GURL> GetSitesInTab() const OVERRIDE; 213 virtual const std::string& GetEncoding() const OVERRIDE; 214 virtual bool DisplayedInsecureContent() const OVERRIDE; 215 virtual void IncrementCapturerCount(const gfx::Size& capture_size) OVERRIDE; 216 virtual void DecrementCapturerCount() OVERRIDE; 217 virtual int GetCapturerCount() const OVERRIDE; 218 virtual bool IsCrashed() const OVERRIDE; 219 virtual void SetIsCrashed(base::TerminationStatus status, 220 int error_code) OVERRIDE; 221 virtual base::TerminationStatus GetCrashedStatus() const OVERRIDE; 222 virtual bool IsBeingDestroyed() const OVERRIDE; 223 virtual void NotifyNavigationStateChanged(unsigned changed_flags) OVERRIDE; 224 virtual base::TimeTicks GetLastActiveTime() const OVERRIDE; 225 virtual void WasShown() OVERRIDE; 226 virtual void WasHidden() OVERRIDE; 227 virtual bool NeedToFireBeforeUnload() OVERRIDE; 228 virtual void DispatchBeforeUnload(bool for_cross_site_transition) OVERRIDE; 229 virtual void Stop() OVERRIDE; 230 virtual WebContents* Clone() OVERRIDE; 231 virtual void ReloadFocusedFrame(bool ignore_cache) OVERRIDE; 232 virtual void Undo() OVERRIDE; 233 virtual void Redo() OVERRIDE; 234 virtual void Cut() OVERRIDE; 235 virtual void Copy() OVERRIDE; 236 virtual void CopyToFindPboard() OVERRIDE; 237 virtual void Paste() OVERRIDE; 238 virtual void PasteAndMatchStyle() OVERRIDE; 239 virtual void Delete() OVERRIDE; 240 virtual void SelectAll() OVERRIDE; 241 virtual void Unselect() OVERRIDE; 242 virtual void Replace(const base::string16& word) OVERRIDE; 243 virtual void ReplaceMisspelling(const base::string16& word) OVERRIDE; 244 virtual void NotifyContextMenuClosed( 245 const CustomContextMenuContext& context) OVERRIDE; 246 virtual void ExecuteCustomContextMenuCommand( 247 int action, const CustomContextMenuContext& context) OVERRIDE; 248 virtual gfx::NativeView GetNativeView() OVERRIDE; 249 virtual gfx::NativeView GetContentNativeView() OVERRIDE; 250 virtual gfx::NativeWindow GetTopLevelNativeWindow() OVERRIDE; 251 virtual gfx::Rect GetContainerBounds() OVERRIDE; 252 virtual gfx::Rect GetViewBounds() OVERRIDE; 253 virtual DropData* GetDropData() OVERRIDE; 254 virtual void Focus() OVERRIDE; 255 virtual void SetInitialFocus() OVERRIDE; 256 virtual void StoreFocus() OVERRIDE; 257 virtual void RestoreFocus() OVERRIDE; 258 virtual void FocusThroughTabTraversal(bool reverse) OVERRIDE; 259 virtual bool ShowingInterstitialPage() const OVERRIDE; 260 virtual InterstitialPage* GetInterstitialPage() const OVERRIDE; 261 virtual bool IsSavable() OVERRIDE; 262 virtual void OnSavePage() OVERRIDE; 263 virtual bool SavePage(const base::FilePath& main_file, 264 const base::FilePath& dir_path, 265 SavePageType save_type) OVERRIDE; 266 virtual void SaveFrame(const GURL& url, 267 const Referrer& referrer) OVERRIDE; 268 virtual void GenerateMHTML( 269 const base::FilePath& file, 270 const base::Callback<void(int64)>& callback) 271 OVERRIDE; 272 virtual const std::string& GetContentsMimeType() const OVERRIDE; 273 virtual bool WillNotifyDisconnection() const OVERRIDE; 274 virtual void SetOverrideEncoding(const std::string& encoding) OVERRIDE; 275 virtual void ResetOverrideEncoding() OVERRIDE; 276 virtual RendererPreferences* GetMutableRendererPrefs() OVERRIDE; 277 virtual void Close() OVERRIDE; 278 virtual void SystemDragEnded() OVERRIDE; 279 virtual void UserGestureDone() OVERRIDE; 280 virtual void SetClosedByUserGesture(bool value) OVERRIDE; 281 virtual bool GetClosedByUserGesture() const OVERRIDE; 282 virtual int GetZoomPercent(bool* enable_increment, 283 bool* enable_decrement) const OVERRIDE; 284 virtual void ViewSource() OVERRIDE; 285 virtual void ViewFrameSource(const GURL& url, 286 const PageState& page_state) OVERRIDE; 287 virtual int GetMinimumZoomPercent() const OVERRIDE; 288 virtual int GetMaximumZoomPercent() const OVERRIDE; 289 virtual gfx::Size GetPreferredSize() const OVERRIDE; 290 virtual bool GotResponseToLockMouseRequest(bool allowed) OVERRIDE; 291 virtual bool HasOpener() const OVERRIDE; 292 virtual void DidChooseColorInColorChooser(SkColor color) OVERRIDE; 293 virtual void DidEndColorChooser() OVERRIDE; 294 virtual int DownloadImage(const GURL& url, 295 bool is_favicon, 296 uint32_t max_bitmap_size, 297 const ImageDownloadCallback& callback) OVERRIDE; 298 virtual bool IsSubframe() const OVERRIDE; 299 virtual void Find(int request_id, 300 const base::string16& search_text, 301 const blink::WebFindOptions& options) OVERRIDE; 302 virtual void StopFinding(StopFindAction action) OVERRIDE; 303 virtual void InsertCSS(const std::string& css) OVERRIDE; 304 #if defined(OS_ANDROID) 305 virtual base::android::ScopedJavaLocalRef<jobject> GetJavaWebContents() 306 OVERRIDE; 307 #elif defined(OS_MACOSX) 308 virtual void SetAllowOverlappingViews(bool overlapping) OVERRIDE; 309 virtual bool GetAllowOverlappingViews() OVERRIDE; 310 virtual void SetOverlayView(WebContents* overlay, 311 const gfx::Point& offset) OVERRIDE; 312 virtual void RemoveOverlayView() OVERRIDE; 313 #endif 314 315 // Implementation of PageNavigator. 316 virtual WebContents* OpenURL(const OpenURLParams& params) OVERRIDE; 317 318 // Implementation of IPC::Sender. 319 virtual bool Send(IPC::Message* message) OVERRIDE; 320 321 // RenderFrameHostDelegate --------------------------------------------------- 322 virtual bool OnMessageReceived(RenderFrameHost* render_frame_host, 323 const IPC::Message& message) OVERRIDE; 324 virtual const GURL& GetMainFrameLastCommittedURL() const OVERRIDE; 325 virtual void RenderFrameCreated(RenderFrameHost* render_frame_host) OVERRIDE; 326 virtual void RenderFrameDeleted(RenderFrameHost* render_frame_host) OVERRIDE; 327 virtual void DidStartLoading(RenderFrameHost* render_frame_host, 328 bool to_different_document) OVERRIDE; 329 virtual void SwappedOut(RenderFrameHost* render_frame_host) OVERRIDE; 330 virtual void WorkerCrashed(RenderFrameHost* render_frame_host) OVERRIDE; 331 virtual void ShowContextMenu(RenderFrameHost* render_frame_host, 332 const ContextMenuParams& params) OVERRIDE; 333 virtual void RunJavaScriptMessage(RenderFrameHost* render_frame_host, 334 const base::string16& message, 335 const base::string16& default_prompt, 336 const GURL& frame_url, 337 JavaScriptMessageType type, 338 IPC::Message* reply_msg) OVERRIDE; 339 virtual void RunBeforeUnloadConfirm(RenderFrameHost* render_frame_host, 340 const base::string16& message, 341 bool is_reload, 342 IPC::Message* reply_msg) OVERRIDE; 343 virtual void DidAccessInitialDocument() OVERRIDE; 344 virtual void DidDisownOpener(RenderFrameHost* render_frame_host) OVERRIDE; 345 virtual void DocumentOnLoadCompleted( 346 RenderFrameHost* render_frame_host) OVERRIDE; 347 virtual void UpdateTitle(RenderFrameHost* render_frame_host, 348 int32 page_id, 349 const base::string16& title, 350 base::i18n::TextDirection title_direction) OVERRIDE; 351 virtual void UpdateEncoding(RenderFrameHost* render_frame_host, 352 const std::string& encoding) OVERRIDE; 353 virtual WebContents* GetAsWebContents() OVERRIDE; 354 virtual bool IsNeverVisible() OVERRIDE; 355 356 // RenderViewHostDelegate ---------------------------------------------------- 357 virtual RenderViewHostDelegateView* GetDelegateView() OVERRIDE; 358 virtual bool OnMessageReceived(RenderViewHost* render_view_host, 359 const IPC::Message& message) OVERRIDE; 360 // RenderFrameHostDelegate has the same method, so list it there because this 361 // interface is going away. 362 // virtual WebContents* GetAsWebContents() OVERRIDE; 363 virtual gfx::Rect GetRootWindowResizerRect() const OVERRIDE; 364 virtual void RenderViewCreated(RenderViewHost* render_view_host) OVERRIDE; 365 virtual void RenderViewReady(RenderViewHost* render_view_host) OVERRIDE; 366 virtual void RenderViewTerminated(RenderViewHost* render_view_host, 367 base::TerminationStatus status, 368 int error_code) OVERRIDE; 369 virtual void RenderViewDeleted(RenderViewHost* render_view_host) OVERRIDE; 370 virtual void UpdateState(RenderViewHost* render_view_host, 371 int32 page_id, 372 const PageState& page_state) OVERRIDE; 373 virtual void UpdateTargetURL(int32 page_id, const GURL& url) OVERRIDE; 374 virtual void Close(RenderViewHost* render_view_host) OVERRIDE; 375 virtual void RequestMove(const gfx::Rect& new_bounds) OVERRIDE; 376 virtual void DidCancelLoading() OVERRIDE; 377 virtual void DocumentAvailableInMainFrame( 378 RenderViewHost* render_view_host) OVERRIDE; 379 virtual void RouteCloseEvent(RenderViewHost* rvh) OVERRIDE; 380 virtual void RouteMessageEvent( 381 RenderViewHost* rvh, 382 const ViewMsg_PostMessage_Params& params) OVERRIDE; 383 virtual bool AddMessageToConsole(int32 level, 384 const base::string16& message, 385 int32 line_no, 386 const base::string16& source_id) OVERRIDE; 387 virtual RendererPreferences GetRendererPrefs( 388 BrowserContext* browser_context) const OVERRIDE; 389 virtual WebPreferences GetWebkitPrefs() OVERRIDE; 390 virtual void OnUserGesture() OVERRIDE; 391 virtual void OnIgnoredUIEvent() OVERRIDE; 392 virtual void RendererUnresponsive(RenderViewHost* render_view_host, 393 bool is_during_beforeunload, 394 bool is_during_unload) OVERRIDE; 395 virtual void RendererResponsive(RenderViewHost* render_view_host) OVERRIDE; 396 virtual void LoadStateChanged(const GURL& url, 397 const net::LoadStateWithParam& load_state, 398 uint64 upload_position, 399 uint64 upload_size) OVERRIDE; 400 virtual void Activate() OVERRIDE; 401 virtual void Deactivate() OVERRIDE; 402 virtual void LostCapture() OVERRIDE; 403 virtual void HandleMouseDown() OVERRIDE; 404 virtual void HandleMouseUp() OVERRIDE; 405 virtual void HandlePointerActivate() OVERRIDE; 406 virtual void HandleGestureBegin() OVERRIDE; 407 virtual void HandleGestureEnd() OVERRIDE; 408 virtual void RunFileChooser( 409 RenderViewHost* render_view_host, 410 const FileChooserParams& params) OVERRIDE; 411 virtual void ToggleFullscreenMode(bool enter_fullscreen) OVERRIDE; 412 virtual bool IsFullscreenForCurrentTab() const OVERRIDE; 413 virtual void UpdatePreferredSize(const gfx::Size& pref_size) OVERRIDE; 414 virtual void ResizeDueToAutoResize(const gfx::Size& new_size) OVERRIDE; 415 virtual void RequestToLockMouse(bool user_gesture, 416 bool last_unlocked_by_target) OVERRIDE; 417 virtual void LostMouseLock() OVERRIDE; 418 virtual void CreateNewWindow( 419 int render_process_id, 420 int route_id, 421 int main_frame_route_id, 422 const ViewHostMsg_CreateWindow_Params& params, 423 SessionStorageNamespace* session_storage_namespace) OVERRIDE; 424 virtual void CreateNewWidget(int render_process_id, 425 int route_id, 426 blink::WebPopupType popup_type) OVERRIDE; 427 virtual void CreateNewFullscreenWidget(int render_process_id, 428 int route_id) OVERRIDE; 429 virtual void ShowCreatedWindow(int route_id, 430 WindowOpenDisposition disposition, 431 const gfx::Rect& initial_pos, 432 bool user_gesture) OVERRIDE; 433 virtual void ShowCreatedWidget(int route_id, 434 const gfx::Rect& initial_pos) OVERRIDE; 435 virtual void ShowCreatedFullscreenWidget(int route_id) OVERRIDE; 436 virtual void RequestMediaAccessPermission( 437 const MediaStreamRequest& request, 438 const MediaResponseCallback& callback) OVERRIDE; 439 virtual SessionStorageNamespace* GetSessionStorageNamespace( 440 SiteInstance* instance) OVERRIDE; 441 virtual SessionStorageNamespaceMap GetSessionStorageNamespaceMap() OVERRIDE; 442 virtual FrameTree* GetFrameTree() OVERRIDE; 443 virtual void AccessibilityEventReceived( 444 const std::vector<AXEventNotificationDetails>& details) OVERRIDE; 445 446 // NavigatorDelegate --------------------------------------------------------- 447 448 virtual void DidStartProvisionalLoad( 449 RenderFrameHostImpl* render_frame_host, 450 int parent_routing_id, 451 const GURL& validated_url, 452 bool is_error_page, 453 bool is_iframe_srcdoc) OVERRIDE; 454 virtual void DidFailProvisionalLoadWithError( 455 RenderFrameHostImpl* render_frame_host, 456 const FrameHostMsg_DidFailProvisionalLoadWithError_Params& params) 457 OVERRIDE; 458 virtual void DidFailLoadWithError( 459 RenderFrameHostImpl* render_frame_host, 460 const GURL& url, 461 int error_code, 462 const base::string16& error_description) OVERRIDE; 463 virtual void DidRedirectProvisionalLoad( 464 RenderFrameHostImpl* render_frame_host, 465 const GURL& validated_target_url) OVERRIDE; 466 virtual void DidCommitProvisionalLoad( 467 RenderFrameHostImpl* render_frame_host, 468 const base::string16& frame_unique_name, 469 bool is_main_frame, 470 const GURL& url, 471 PageTransition transition_type) OVERRIDE; 472 virtual void DidNavigateMainFramePreCommit( 473 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) OVERRIDE; 474 virtual void DidNavigateMainFramePostCommit( 475 const LoadCommittedDetails& details, 476 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) OVERRIDE; 477 virtual void DidNavigateAnyFramePostCommit( 478 RenderFrameHostImpl* render_frame_host, 479 const LoadCommittedDetails& details, 480 const FrameHostMsg_DidCommitProvisionalLoad_Params& params) OVERRIDE; 481 virtual void SetMainFrameMimeType(const std::string& mime_type) OVERRIDE; 482 virtual bool CanOverscrollContent() const OVERRIDE; 483 virtual void NotifyChangedNavigationState( 484 InvalidateTypes changed_flags) OVERRIDE; 485 virtual void AboutToNavigateRenderFrame( 486 RenderFrameHostImpl* render_frame_host) OVERRIDE; 487 virtual void DidStartNavigationToPendingEntry( 488 RenderFrameHostImpl* render_frame_host, 489 const GURL& url, 490 NavigationController::ReloadType reload_type) OVERRIDE; 491 virtual void RequestOpenURL(RenderFrameHostImpl* render_frame_host, 492 const OpenURLParams& params) OVERRIDE; 493 virtual bool ShouldPreserveAbortedURLs() OVERRIDE; 494 495 // RenderWidgetHostDelegate -------------------------------------------------- 496 497 virtual void RenderWidgetDeleted( 498 RenderWidgetHostImpl* render_widget_host) OVERRIDE; 499 virtual bool PreHandleKeyboardEvent( 500 const NativeWebKeyboardEvent& event, 501 bool* is_keyboard_shortcut) OVERRIDE; 502 virtual void HandleKeyboardEvent( 503 const NativeWebKeyboardEvent& event) OVERRIDE; 504 virtual bool HandleWheelEvent( 505 const blink::WebMouseWheelEvent& event) OVERRIDE; 506 virtual bool PreHandleGestureEvent( 507 const blink::WebGestureEvent& event) OVERRIDE; 508 virtual bool HandleGestureEvent( 509 const blink::WebGestureEvent& event) OVERRIDE; 510 virtual void DidSendScreenRects(RenderWidgetHostImpl* rwh) OVERRIDE; 511 virtual void OnTouchEmulationEnabled(bool enabled) OVERRIDE; 512 #if defined(OS_WIN) 513 virtual gfx::NativeViewAccessible GetParentNativeViewAccessible() OVERRIDE; 514 #endif 515 516 // RenderFrameHostManager::Delegate ------------------------------------------ 517 518 virtual bool CreateRenderViewForRenderManager( 519 RenderViewHost* render_view_host, 520 int opener_route_id, 521 int proxy_routing_id, 522 bool for_main_frame) OVERRIDE; 523 virtual void BeforeUnloadFiredFromRenderManager( 524 bool proceed, const base::TimeTicks& proceed_time, 525 bool* proceed_to_fire_unload) OVERRIDE; 526 virtual void RenderProcessGoneFromRenderManager( 527 RenderViewHost* render_view_host) OVERRIDE; 528 virtual void UpdateRenderViewSizeForRenderManager() OVERRIDE; 529 virtual void CancelModalDialogsForRenderManager() OVERRIDE; 530 virtual void NotifySwappedFromRenderManager( 531 RenderViewHost* old_host, RenderViewHost* new_host) OVERRIDE; 532 virtual int CreateOpenerRenderViewsForRenderManager( 533 SiteInstance* instance) OVERRIDE; 534 virtual NavigationControllerImpl& 535 GetControllerForRenderManager() OVERRIDE; 536 virtual WebUIImpl* CreateWebUIForRenderManager(const GURL& url) OVERRIDE; 537 virtual NavigationEntry* 538 GetLastCommittedNavigationEntryForRenderManager() OVERRIDE; 539 virtual bool FocusLocationBarByDefault() OVERRIDE; 540 virtual void SetFocusToLocationBar(bool select_all) OVERRIDE; 541 virtual void CreateViewAndSetSizeForRVH(RenderViewHost* rvh) OVERRIDE; 542 virtual bool IsHidden() OVERRIDE; 543 544 // NotificationObserver ------------------------------------------------------ 545 546 virtual void Observe(int type, 547 const NotificationSource& source, 548 const NotificationDetails& details) OVERRIDE; 549 550 // NavigationControllerDelegate ---------------------------------------------- 551 552 virtual WebContents* GetWebContents() OVERRIDE; 553 virtual void NotifyNavigationEntryCommitted( 554 const LoadCommittedDetails& load_details) OVERRIDE; 555 556 // Invoked before a form repost warning is shown. 557 virtual void NotifyBeforeFormRepostWarningShow() OVERRIDE; 558 559 // Activate this WebContents and show a form repost warning. 560 virtual void ActivateAndShowRepostFormWarningDialog() OVERRIDE; 561 562 // Whether the initial empty page of this view has been accessed by another 563 // page, making it unsafe to show the pending URL. Always false after the 564 // first commit. 565 virtual bool HasAccessedInitialDocument() OVERRIDE; 566 567 // Updates the max page ID for the current SiteInstance in this 568 // WebContentsImpl to be at least |page_id|. 569 virtual void UpdateMaxPageID(int32 page_id) OVERRIDE; 570 571 // Updates the max page ID for the given SiteInstance in this WebContentsImpl 572 // to be at least |page_id|. 573 virtual void UpdateMaxPageIDForSiteInstance(SiteInstance* site_instance, 574 int32 page_id) OVERRIDE; 575 576 // Copy the current map of SiteInstance ID to max page ID from another tab. 577 // This is necessary when this tab adopts the NavigationEntries from 578 // |web_contents|. 579 virtual void CopyMaxPageIDsFrom(WebContents* web_contents) OVERRIDE; 580 581 // Called by the NavigationController to cause the WebContentsImpl to navigate 582 // to the current pending entry. The NavigationController should be called 583 // back with RendererDidNavigate on success or DiscardPendingEntry on failure. 584 // The callbacks can be inside of this function, or at some future time. 585 // 586 // The entry has a PageID of -1 if newly created (corresponding to navigation 587 // to a new URL). 588 // 589 // If this method returns false, then the navigation is discarded (equivalent 590 // to calling DiscardPendingEntry on the NavigationController). 591 virtual bool NavigateToPendingEntry( 592 NavigationController::ReloadType reload_type) OVERRIDE; 593 594 // Sets the history for this WebContentsImpl to |history_length| entries, and 595 // moves the current page_id to the last entry in the list if it's valid. 596 // This is mainly used when a prerendered page is swapped into the current 597 // tab. The method is virtual for testing. 598 virtual void SetHistoryLengthAndPrune( 599 const SiteInstance* site_instance, 600 int merge_history_length, 601 int32 minimum_page_id) OVERRIDE; 602 603 // Called by InterstitialPageImpl when it creates a RenderFrameHost. 604 virtual void RenderFrameForInterstitialPageCreated( 605 RenderFrameHost* render_frame_host) OVERRIDE; 606 607 // Sets the passed interstitial as the currently showing interstitial. 608 // No interstitial page should already be attached. 609 virtual void AttachInterstitialPage( 610 InterstitialPageImpl* interstitial_page) OVERRIDE; 611 612 // Unsets the currently showing interstitial. 613 virtual void DetachInterstitialPage() OVERRIDE; 614 615 // Changes the IsLoading state and notifies the delegate as needed. 616 // |details| is used to provide details on the load that just finished 617 // (but can be null if not applicable). 618 virtual void SetIsLoading(RenderViewHost* render_view_host, 619 bool is_loading, 620 bool to_different_document, 621 LoadNotificationDetails* details) OVERRIDE; 622 623 typedef base::Callback<void(WebContents*)> CreatedCallback; 624 625 // Requests the renderer to select the region between two points in the 626 // currently focused frame. 627 void SelectRange(const gfx::Point& start, const gfx::Point& end); 628 629 private: 630 friend class TestNavigationObserver; 631 friend class WebContentsAddedObserver; 632 friend class WebContentsObserver; 633 friend class WebContents; // To implement factory methods. 634 635 FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, NoJSMessageOnInterstitials); 636 FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, UpdateTitle); 637 FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, FindOpenerRVHWhenPending); 638 FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, 639 CrossSiteCantPreemptAfterUnload); 640 FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, PendingContents); 641 FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, FrameTreeShape); 642 FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, GetLastActiveTime); 643 FRIEND_TEST_ALL_PREFIXES(FormStructureBrowserTest, HTMLFiles); 644 FRIEND_TEST_ALL_PREFIXES(NavigationControllerTest, HistoryNavigate); 645 FRIEND_TEST_ALL_PREFIXES(RenderFrameHostManagerTest, PageDoesBackAndReload); 646 FRIEND_TEST_ALL_PREFIXES(SitePerProcessBrowserTest, CrossSiteIframe); 647 648 // So InterstitialPageImpl can access SetIsLoading. 649 friend class InterstitialPageImpl; 650 651 // TODO(brettw) TestWebContents shouldn't exist! 652 friend class TestWebContents; 653 654 class DestructionObserver; 655 656 // See WebContents::Create for a description of these parameters. 657 WebContentsImpl(BrowserContext* browser_context, 658 WebContentsImpl* opener); 659 660 // Add and remove observers for page navigation notifications. The order in 661 // which notifications are sent to observers is undefined. Clients must be 662 // sure to remove the observer before they go away. 663 void AddObserver(WebContentsObserver* observer); 664 void RemoveObserver(WebContentsObserver* observer); 665 666 // Clears this tab's opener if it has been closed. 667 void OnWebContentsDestroyed(WebContentsImpl* web_contents); 668 669 // Creates and adds to the map a destruction observer watching |web_contents|. 670 // No-op if such an observer already exists. 671 void AddDestructionObserver(WebContentsImpl* web_contents); 672 673 // Deletes and removes from the map a destruction observer 674 // watching |web_contents|. No-op if there is no such observer. 675 void RemoveDestructionObserver(WebContentsImpl* web_contents); 676 677 // Traverses all the RenderFrameHosts in the FrameTree and creates a set 678 // all the unique RenderWidgetHostViews. 679 std::set<RenderWidgetHostView*> GetRenderWidgetHostViewsInTree(); 680 681 // Callback function when showing JavaScript dialogs. Takes in a routing ID 682 // pair to identify the RenderFrameHost that opened the dialog, because it's 683 // possible for the RenderFrameHost to be deleted by the time this is called. 684 void OnDialogClosed(int render_process_id, 685 int render_frame_id, 686 IPC::Message* reply_msg, 687 bool dialog_was_suppressed, 688 bool success, 689 const base::string16& user_input); 690 691 // Callback function when requesting permission to access the PPAPI broker. 692 // |result| is true if permission was granted. 693 void OnPpapiBrokerPermissionResult(int routing_id, bool result); 694 695 bool OnMessageReceived(RenderViewHost* render_view_host, 696 RenderFrameHost* render_frame_host, 697 const IPC::Message& message); 698 699 // IPC message handlers. 700 void OnThemeColorChanged(SkColor theme_color); 701 void OnDidLoadResourceFromMemoryCache(const GURL& url, 702 const std::string& security_info, 703 const std::string& http_request, 704 const std::string& mime_type, 705 ResourceType::Type resource_type); 706 void OnDidDisplayInsecureContent(); 707 void OnDidRunInsecureContent(const std::string& security_origin, 708 const GURL& target_url); 709 void OnDocumentLoadedInFrame(); 710 void OnDidFinishLoad(const GURL& url); 711 void OnDidStartLoading(bool to_different_document); 712 void OnDidStopLoading(); 713 void OnDidChangeLoadProgress(double load_progress); 714 void OnGoToEntryAtOffset(int offset); 715 void OnUpdateZoomLimits(int minimum_percent, 716 int maximum_percent); 717 void OnEnumerateDirectory(int request_id, const base::FilePath& path); 718 719 void OnRegisterProtocolHandler(const std::string& protocol, 720 const GURL& url, 721 const base::string16& title, 722 bool user_gesture); 723 void OnFindReply(int request_id, 724 int number_of_matches, 725 const gfx::Rect& selection_rect, 726 int active_match_ordinal, 727 bool final_update); 728 #if defined(OS_ANDROID) 729 void OnFindMatchRectsReply(int version, 730 const std::vector<gfx::RectF>& rects, 731 const gfx::RectF& active_rect); 732 733 void OnOpenDateTimeDialog( 734 const ViewHostMsg_DateTimeDialogValue_Params& value); 735 #endif 736 void OnPepperPluginHung(int plugin_child_id, 737 const base::FilePath& path, 738 bool is_hung); 739 void OnPluginCrashed(const base::FilePath& plugin_path, 740 base::ProcessId plugin_pid); 741 void OnDomOperationResponse(const std::string& json_string, 742 int automation_id); 743 void OnAppCacheAccessed(const GURL& manifest_url, bool blocked_by_policy); 744 void OnOpenColorChooser(int color_chooser_id, 745 SkColor color, 746 const std::vector<ColorSuggestion>& suggestions); 747 void OnEndColorChooser(int color_chooser_id); 748 void OnSetSelectedColorInColorChooser(int color_chooser_id, SkColor color); 749 void OnWebUISend(const GURL& source_url, 750 const std::string& name, 751 const base::ListValue& args); 752 void OnRequestPpapiBrokerPermission(int routing_id, 753 const GURL& url, 754 const base::FilePath& plugin_path); 755 void OnBrowserPluginMessage(const IPC::Message& message); 756 void OnDidDownloadImage(int id, 757 int http_status_code, 758 const GURL& image_url, 759 const std::vector<SkBitmap>& bitmaps, 760 const std::vector<gfx::Size>& original_bitmap_sizes); 761 void OnUpdateFaviconURL(const std::vector<FaviconURL>& candidates); 762 void OnFirstVisuallyNonEmptyPaint(); 763 void OnMediaPlayingNotification(int64 player_cookie, 764 bool has_video, 765 bool has_audio); 766 void OnMediaPausedNotification(int64 player_cookie); 767 void OnShowValidationMessage(const gfx::Rect& anchor_in_root_view, 768 const base::string16& main_text, 769 const base::string16& sub_text); 770 void OnHideValidationMessage(); 771 void OnMoveValidationMessage(const gfx::Rect& anchor_in_root_view); 772 773 // Called by derived classes to indicate that we're no longer waiting for a 774 // response. This won't actually update the throbber, but it will get picked 775 // up at the next animation step if the throbber is going. 776 void SetNotWaitingForResponse() { waiting_for_response_ = false; } 777 778 // Navigation helpers -------------------------------------------------------- 779 // 780 // These functions are helpers for Navigate() and DidNavigate(). 781 782 // Handles post-navigation tasks in DidNavigate AFTER the entry has been 783 // committed to the navigation controller. Note that the navigation entry is 784 // not provided since it may be invalid/changed after being committed. The 785 // current navigation entry is in the NavigationController at this point. 786 787 // If our controller was restored, update the max page ID associated with the 788 // given RenderViewHost to be larger than the number of restored entries. 789 // This is called in CreateRenderView before any navigations in the RenderView 790 // have begun, to prevent any races in updating RenderView::next_page_id. 791 void UpdateMaxPageIDIfNecessary(RenderViewHost* rvh); 792 793 // Saves the given title to the navigation entry and does associated work. It 794 // will update history and the view for the new title, and also synthesize 795 // titles for file URLs that have none (so we require that the URL of the 796 // entry already be set). 797 // 798 // This is used as the backend for state updates, which include a new title, 799 // or the dedicated set title message. It returns true if the new title is 800 // different and was therefore updated. 801 bool UpdateTitleForEntry(NavigationEntryImpl* entry, 802 const base::string16& title); 803 804 // Recursively creates swapped out RenderViews for this tab's opener chain 805 // (including this tab) in the given SiteInstance, allowing other tabs to send 806 // cross-process JavaScript calls to their opener(s). Returns the route ID of 807 // this tab's RenderView for |instance|. 808 int CreateOpenerRenderViews(SiteInstance* instance); 809 810 // Helper for CreateNewWidget/CreateNewFullscreenWidget. 811 void CreateNewWidget(int render_process_id, 812 int route_id, 813 bool is_fullscreen, 814 blink::WebPopupType popup_type); 815 816 // Helper for ShowCreatedWidget/ShowCreatedFullscreenWidget. 817 void ShowCreatedWidget(int route_id, 818 bool is_fullscreen, 819 const gfx::Rect& initial_pos); 820 821 // Finds the new RenderWidgetHost and returns it. Note that this can only be 822 // called once as this call also removes it from the internal map. 823 RenderWidgetHostView* GetCreatedWidget(int route_id); 824 825 // Finds the new WebContentsImpl by route_id, initializes it for 826 // renderer-initiated creation, and returns it. Note that this can only be 827 // called once as this call also removes it from the internal map. 828 WebContentsImpl* GetCreatedWindow(int route_id); 829 830 // Tracking loading progress ------------------------------------------------- 831 832 // Resets the tracking state of the current load. 833 void ResetLoadProgressState(); 834 835 // Calculates the progress of the current load and notifies the delegate. 836 void SendLoadProgressChanged(); 837 838 // Called once when the last frame on the page has stopped loading. 839 void DidStopLoading(RenderFrameHost* render_frame_host); 840 841 // Misc non-view stuff ------------------------------------------------------- 842 843 // Helper functions for sending notifications. 844 void NotifySwapped(RenderViewHost* old_host, RenderViewHost* new_host); 845 void NotifyDisconnected(); 846 847 void SetEncoding(const std::string& encoding); 848 849 // TODO(creis): This should take in a FrameTreeNode to know which node's 850 // render manager to return. For now, we just return the root's. 851 RenderFrameHostManager* GetRenderManager() const; 852 853 RenderViewHostImpl* GetRenderViewHostImpl(); 854 855 // Removes browser plugin embedder if there is one. 856 void RemoveBrowserPluginEmbedder(); 857 858 // Clear |render_frame_host|'s PowerSaveBlockers. 859 void ClearPowerSaveBlockers(RenderFrameHost* render_frame_host); 860 861 // Clear all PowerSaveBlockers, leave power_save_blocker_ empty. 862 void ClearAllPowerSaveBlockers(); 863 864 // Helper function to invoke WebContentsDelegate::GetSizeForNewRenderView(). 865 gfx::Size GetSizeForNewRenderView(); 866 867 void OnFrameRemoved(RenderViewHostImpl* render_view_host, 868 int frame_routing_id); 869 870 // Helper method that's called whenever |preferred_size_| or 871 // |preferred_size_for_capture_| changes, to propagate the new value to the 872 // |delegate_|. 873 void OnPreferredSizeChanged(const gfx::Size& old_size); 874 875 // Adds/removes a callback called on creation of each new WebContents. 876 // Deprecated, about to remove. 877 static void AddCreatedCallback(const CreatedCallback& callback); 878 static void RemoveCreatedCallback(const CreatedCallback& callback); 879 880 // Data for core operation --------------------------------------------------- 881 882 // Delegate for notifying our owner about stuff. Not owned by us. 883 WebContentsDelegate* delegate_; 884 885 // Handles the back/forward list and loading. 886 NavigationControllerImpl controller_; 887 888 // The corresponding view. 889 scoped_ptr<WebContentsView> view_; 890 891 // The view of the RVHD. Usually this is our WebContentsView implementation, 892 // but if an embedder uses a different WebContentsView, they'll need to 893 // provide this. 894 RenderViewHostDelegateView* render_view_host_delegate_view_; 895 896 // Tracks created WebContentsImpl objects that have not been shown yet. They 897 // are identified by the route ID passed to CreateNewWindow. 898 typedef std::map<int, WebContentsImpl*> PendingContents; 899 PendingContents pending_contents_; 900 901 // These maps hold on to the widgets that we created on behalf of the renderer 902 // that haven't shown yet. 903 typedef std::map<int, RenderWidgetHostView*> PendingWidgetViews; 904 PendingWidgetViews pending_widget_views_; 905 906 typedef std::map<WebContentsImpl*, DestructionObserver*> DestructionObservers; 907 DestructionObservers destruction_observers_; 908 909 // A list of observers notified when page state changes. Weak references. 910 // This MUST be listed above frame_tree_ since at destruction time the 911 // latter might cause RenderViewHost's destructor to call us and we might use 912 // the observer list then. 913 ObserverList<WebContentsObserver> observers_; 914 915 // The tab that opened this tab, if any. Will be set to null if the opener 916 // is closed. 917 WebContentsImpl* opener_; 918 919 // True if this tab was opened by another tab. This is not unset if the opener 920 // is closed. 921 bool created_with_opener_; 922 923 #if defined(OS_WIN) 924 gfx::NativeViewAccessible accessible_parent_; 925 #endif 926 927 // Helper classes ------------------------------------------------------------ 928 929 // Maps the RenderFrameHost to its media_player_cookie and PowerSaveBlocker 930 // pairs. Key is the RenderFrameHost, value is the map which maps 931 // player_cookie on to PowerSaveBlocker. 932 typedef std::map<RenderFrameHost*, std::map<int64, PowerSaveBlocker*> > 933 PowerSaveBlockerMap; 934 PowerSaveBlockerMap power_save_blockers_; 935 936 // Manages the frame tree of the page and process swaps in each node. 937 FrameTree frame_tree_; 938 939 // SavePackage, lazily created. 940 scoped_refptr<SavePackage> save_package_; 941 942 // Data for loading state ---------------------------------------------------- 943 944 // Indicates whether we're currently loading a resource. 945 bool is_loading_; 946 947 // Indicates whether the current load is to a different document. Only valid 948 // if is_loading_ is true. 949 bool is_load_to_different_document_; 950 951 // Indicates if the tab is considered crashed. 952 base::TerminationStatus crashed_status_; 953 int crashed_error_code_; 954 955 // Whether this WebContents is waiting for a first-response for the 956 // main resource of the page. This controls whether the throbber state is 957 // "waiting" or "loading." 958 bool waiting_for_response_; 959 960 // Map of SiteInstance ID to max page ID for this tab. A page ID is specific 961 // to a given tab and SiteInstance, and must be valid for the lifetime of the 962 // WebContentsImpl. 963 std::map<int32, int32> max_page_ids_; 964 965 // The current load state and the URL associated with it. 966 net::LoadStateWithParam load_state_; 967 base::string16 load_state_host_; 968 969 // LoadingProgressMap maps FrameTreeNode IDs to a double representing that 970 // frame's completion (from 0 to 1). 971 typedef base::hash_map<int64, double> LoadingProgressMap; 972 LoadingProgressMap loading_progresses_; 973 double loading_total_progress_; 974 975 base::TimeTicks loading_last_progress_update_; 976 977 base::WeakPtrFactory<WebContentsImpl> loading_weak_factory_; 978 979 // Counter to track how many frames have sent start notifications but not 980 // stop notifications. 981 int loading_frames_in_progress_; 982 983 // Upload progress, for displaying in the status bar. 984 // Set to zero when there is no significant upload happening. 985 uint64 upload_size_; 986 uint64 upload_position_; 987 988 // Data for current page ----------------------------------------------------- 989 990 // When a title cannot be taken from any entry, this title will be used. 991 base::string16 page_title_when_no_navigation_entry_; 992 993 // When a navigation occurs, we record its contents MIME type. It can be 994 // used to check whether we can do something for some special contents. 995 std::string contents_mime_type_; 996 997 // The last reported character encoding, not canonicalized. 998 std::string last_reported_encoding_; 999 1000 // The canonicalized character encoding. 1001 std::string canonical_encoding_; 1002 1003 // True if this is a secure page which displayed insecure content. 1004 bool displayed_insecure_content_; 1005 1006 // Whether the initial empty page has been accessed by another page, making it 1007 // unsafe to show the pending URL. Usually false unless another window tries 1008 // to modify the blank page. Always false after the first commit. 1009 bool has_accessed_initial_document_; 1010 1011 // Data for misc internal state ---------------------------------------------- 1012 1013 // When > 0, the WebContents is currently being captured (e.g., for 1014 // screenshots or mirroring); and the underlying RenderWidgetHost should not 1015 // be told it is hidden. 1016 int capturer_count_; 1017 1018 // Tracks whether RWHV should be visible once capturer_count_ becomes zero. 1019 bool should_normally_be_visible_; 1020 1021 // See getter above. 1022 bool is_being_destroyed_; 1023 1024 // Indicates whether we should notify about disconnection of this 1025 // WebContentsImpl. This is used to ensure disconnection notifications only 1026 // happen if a connection notification has happened and that they happen only 1027 // once. 1028 bool notify_disconnection_; 1029 1030 // Pointer to the JavaScript dialog manager, lazily assigned. Used because the 1031 // delegate of this WebContentsImpl is nulled before its destructor is called. 1032 JavaScriptDialogManager* dialog_manager_; 1033 1034 // Set to true when there is an active "before unload" dialog. When true, 1035 // we've forced the throbber to start in Navigate, and we need to remember to 1036 // turn it off in OnJavaScriptMessageBoxClosed if the navigation is canceled. 1037 bool is_showing_before_unload_dialog_; 1038 1039 // Settings that get passed to the renderer process. 1040 RendererPreferences renderer_preferences_; 1041 1042 // The time that this WebContents was last made active. The initial value is 1043 // the WebContents creation time. 1044 base::TimeTicks last_active_time_; 1045 1046 // See description above setter. 1047 bool closed_by_user_gesture_; 1048 1049 // Minimum/maximum zoom percent. 1050 int minimum_zoom_percent_; 1051 int maximum_zoom_percent_; 1052 1053 // The raw accumulated zoom value and the actual zoom increments made for an 1054 // an in-progress pinch gesture. 1055 float totalPinchGestureAmount_; 1056 int currentPinchZoomStepDelta_; 1057 1058 // The intrinsic size of the page. 1059 gfx::Size preferred_size_; 1060 1061 // The preferred size for content screen capture. When |capturer_count_| > 0, 1062 // this overrides |preferred_size_|. 1063 gfx::Size preferred_size_for_capture_; 1064 1065 #if defined(OS_ANDROID) 1066 // Date time chooser opened by this tab. 1067 // Only used in Android since all other platforms use a multi field UI. 1068 scoped_ptr<DateTimeChooserAndroid> date_time_chooser_; 1069 #endif 1070 1071 // Holds information about a current color chooser dialog, if one is visible. 1072 struct ColorChooserInfo { 1073 ColorChooserInfo(int render_process_id, 1074 int render_frame_id, 1075 ColorChooser* chooser, 1076 int identifier); 1077 ~ColorChooserInfo(); 1078 1079 int render_process_id; 1080 int render_frame_id; 1081 1082 // Color chooser that was opened by this tab. 1083 scoped_ptr<ColorChooser> chooser; 1084 1085 // A unique identifier for the current color chooser. Identifiers are 1086 // unique across a renderer process. This avoids race conditions in 1087 // synchronizing the browser and renderer processes. For example, if a 1088 // renderer closes one chooser and opens another, and simultaneously the 1089 // user picks a color in the first chooser, the IDs can be used to drop the 1090 // "chose a color" message rather than erroneously tell the renderer that 1091 // the user picked a color in the second chooser. 1092 int identifier; 1093 }; 1094 1095 scoped_ptr<ColorChooserInfo> color_chooser_info_; 1096 1097 // Manages the embedder state for browser plugins, if this WebContents is an 1098 // embedder; NULL otherwise. 1099 scoped_ptr<BrowserPluginEmbedder> browser_plugin_embedder_; 1100 // Manages the guest state for browser plugin, if this WebContents is a guest; 1101 // NULL otherwise. 1102 scoped_ptr<BrowserPluginGuest> browser_plugin_guest_; 1103 1104 // This must be at the end, or else we might get notifications and use other 1105 // member variables that are gone. 1106 NotificationRegistrar registrar_; 1107 1108 // Used during IPC message dispatching from the RenderView/RenderFrame so that 1109 // the handlers can get a pointer to the RVH through which the message was 1110 // received. 1111 RenderViewHost* render_view_message_source_; 1112 RenderFrameHost* render_frame_message_source_; 1113 1114 // All live RenderWidgetHostImpls that are created by this object and may 1115 // outlive it. 1116 std::set<RenderWidgetHostImpl*> created_widgets_; 1117 1118 // Routing id of the shown fullscreen widget or MSG_ROUTING_NONE otherwise. 1119 int fullscreen_widget_routing_id_; 1120 1121 // Maps the ids of pending image downloads to their callbacks 1122 typedef std::map<int, ImageDownloadCallback> ImageDownloadMap; 1123 ImageDownloadMap image_download_map_; 1124 1125 // Whether this WebContents is responsible for displaying a subframe in a 1126 // different process from its parent page. 1127 bool is_subframe_; 1128 1129 // Whether touch emulation is enabled in RenderWidgetHost. 1130 bool touch_emulation_enabled_; 1131 1132 // Whether the last JavaScript dialog shown was suppressed. Used for testing. 1133 bool last_dialog_suppressed_; 1134 1135 scoped_ptr<GeolocationDispatcherHost> geolocation_dispatcher_host_; 1136 1137 scoped_ptr<MidiDispatcherHost> midi_dispatcher_host_; 1138 1139 scoped_ptr<ScreenOrientationDispatcherHost> 1140 screen_orientation_dispatcher_host_; 1141 1142 DISALLOW_COPY_AND_ASSIGN(WebContentsImpl); 1143 }; 1144 1145 } // namespace content 1146 1147 #endif // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_ 1148