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/renderer_host/render_view_host_delegate.h" 19 #include "content/browser/renderer_host/render_widget_host_delegate.h" 20 #include "content/browser/web_contents/frame_tree_node.h" 21 #include "content/browser/web_contents/navigation_controller_impl.h" 22 #include "content/browser/web_contents/render_view_host_manager.h" 23 #include "content/common/content_export.h" 24 #include "content/public/browser/notification_observer.h" 25 #include "content/public/browser/notification_registrar.h" 26 #include "content/public/browser/web_contents.h" 27 #include "content/public/common/renderer_preferences.h" 28 #include "content/public/common/three_d_api_types.h" 29 #include "net/base/load_states.h" 30 #include "third_party/WebKit/public/web/WebDragOperation.h" 31 #include "ui/gfx/rect_f.h" 32 #include "ui/gfx/size.h" 33 #include "ui/gfx/vector2d.h" 34 #include "webkit/common/resource_type.h" 35 36 struct BrowserPluginHostMsg_ResizeGuest_Params; 37 struct ViewHostMsg_DateTimeDialogValue_Params; 38 struct ViewMsg_PostMessage_Params; 39 40 namespace content { 41 class BrowserPluginEmbedder; 42 class BrowserPluginGuest; 43 class BrowserPluginGuestManager; 44 class ColorChooser; 45 class DateTimeChooserAndroid; 46 class DownloadItem; 47 class InterstitialPageImpl; 48 class JavaBridgeDispatcherHostManager; 49 class JavaScriptDialogManager; 50 class PowerSaveBlocker; 51 class RenderViewHost; 52 class RenderViewHostDelegateView; 53 class RenderViewHostImpl; 54 class RenderWidgetHostImpl; 55 class RenderWidgetHostViewPort; 56 class SavePackage; 57 class SessionStorageNamespaceImpl; 58 class SiteInstance; 59 class TestWebContents; 60 class WebContentsDelegate; 61 class WebContentsImpl; 62 class WebContentsObserver; 63 class WebContentsViewPort; 64 class WebContentsViewDelegate; 65 struct FaviconURL; 66 struct LoadNotificationDetails; 67 68 // Factory function for the implementations that content knows about. Takes 69 // ownership of |delegate|. 70 WebContentsViewPort* CreateWebContentsView( 71 WebContentsImpl* web_contents, 72 WebContentsViewDelegate* delegate, 73 RenderViewHostDelegateView** render_view_host_delegate_view); 74 75 class CONTENT_EXPORT WebContentsImpl 76 : public NON_EXPORTED_BASE(WebContents), 77 public RenderViewHostDelegate, 78 public RenderWidgetHostDelegate, 79 public RenderViewHostManager::Delegate, 80 public NotificationObserver { 81 public: 82 virtual ~WebContentsImpl(); 83 84 static WebContentsImpl* CreateWithOpener( 85 const WebContents::CreateParams& params, 86 WebContentsImpl* opener); 87 88 // Returns the opener WebContentsImpl, if any. This can be set to null if the 89 // opener is closed or the page clears its window.opener. 90 WebContentsImpl* opener() const { return opener_; } 91 92 // Creates a WebContents to be used as a browser plugin guest. 93 static BrowserPluginGuest* CreateGuest( 94 BrowserContext* browser_context, 95 content::SiteInstance* site_instance, 96 int guest_instance_id, 97 scoped_ptr<base::DictionaryValue> extra_params); 98 99 // Returns the content specific prefs for the given RVH. 100 static WebPreferences GetWebkitPrefs( 101 RenderViewHost* rvh, const GURL& url); 102 103 // Creates a swapped out RenderView. This is used by the browser plugin to 104 // create a swapped out RenderView in the embedder render process for the 105 // guest, to expose the guest's window object to the embedder. 106 // This returns the routing ID of the newly created swapped out RenderView. 107 int CreateSwappedOutRenderView(SiteInstance* instance); 108 109 // Complex initialization here. Specifically needed to avoid having 110 // members call back into our virtual functions in the constructor. 111 virtual void Init(const WebContents::CreateParams& params); 112 113 // Returns the SavePackage which manages the page saving job. May be NULL. 114 SavePackage* save_package() const { return save_package_.get(); } 115 116 // Updates the max page ID for the current SiteInstance in this 117 // WebContentsImpl to be at least |page_id|. 118 void UpdateMaxPageID(int32 page_id); 119 120 // Updates the max page ID for the given SiteInstance in this WebContentsImpl 121 // to be at least |page_id|. 122 void UpdateMaxPageIDForSiteInstance(SiteInstance* site_instance, 123 int32 page_id); 124 125 // Copy the current map of SiteInstance ID to max page ID from another tab. 126 // This is necessary when this tab adopts the NavigationEntries from 127 // |web_contents|. 128 void CopyMaxPageIDsFrom(WebContentsImpl* web_contents); 129 130 // Called by the NavigationController to cause the WebContentsImpl to navigate 131 // to the current pending entry. The NavigationController should be called 132 // back with RendererDidNavigate on success or DiscardPendingEntry on failure. 133 // The callbacks can be inside of this function, or at some future time. 134 // 135 // The entry has a PageID of -1 if newly created (corresponding to navigation 136 // to a new URL). 137 // 138 // If this method returns false, then the navigation is discarded (equivalent 139 // to calling DiscardPendingEntry on the NavigationController). 140 bool NavigateToPendingEntry(NavigationController::ReloadType reload_type); 141 142 // Called by InterstitialPageImpl when it creates a RenderViewHost. 143 void RenderViewForInterstitialPageCreated(RenderViewHost* render_view_host); 144 145 // Sets the passed interstitial as the currently showing interstitial. 146 // No interstitial page should already be attached. 147 void AttachInterstitialPage(InterstitialPageImpl* interstitial_page); 148 149 // Unsets the currently showing interstitial. 150 void DetachInterstitialPage(); 151 152 #if defined(OS_ANDROID) 153 JavaBridgeDispatcherHostManager* java_bridge_dispatcher_host_manager() const { 154 return java_bridge_dispatcher_host_manager_.get(); 155 } 156 157 // In Android WebView, the RenderView needs created even there is no 158 // navigation entry, this allows Android WebViews to use 159 // javascript: URLs that load into the DOMWindow before the first page 160 // load. This is not safe to do in any context that a web page could get a 161 // reference to the DOMWindow before the first page load. 162 bool CreateRenderViewForInitialEmptyDocument(); 163 #endif 164 165 // Expose the render manager for testing. 166 RenderViewHostManager* GetRenderManagerForTesting(); 167 168 // Returns guest browser plugin object, or NULL if this WebContents is not a 169 // guest. 170 BrowserPluginGuest* GetBrowserPluginGuest() const; 171 172 // Sets a BrowserPluginGuest object for this WebContents. If this WebContents 173 // has a BrowserPluginGuest then that implies that it is being hosted by 174 // a BrowserPlugin object in an embedder renderer process. 175 void SetBrowserPluginGuest(BrowserPluginGuest* guest); 176 177 // Returns embedder browser plugin object, or NULL if this WebContents is not 178 // an embedder. 179 BrowserPluginEmbedder* GetBrowserPluginEmbedder() const; 180 181 // Returns the BrowserPluginGuestManager object, or NULL if this web contents 182 // does not have a BrowserPluginGuestManager. 183 BrowserPluginGuestManager* GetBrowserPluginGuestManager() const; 184 185 // Gets the current fullscreen render widget's routing ID. Returns 186 // MSG_ROUTING_NONE when there is no fullscreen render widget. 187 int GetFullscreenWidgetRoutingID() const; 188 189 // Invoked when visible SSL state (as defined by SSLStatus) changes. 190 void DidChangeVisibleSSLState(); 191 192 // Invoked before a form repost warning is shown. 193 void NotifyBeforeFormRepostWarningShow(); 194 195 196 // Informs the render view host and the BrowserPluginEmbedder, if present, of 197 // a Drag Source End. 198 void DragSourceEndedAt(int client_x, int client_y, int screen_x, 199 int screen_y, WebKit::WebDragOperation operation); 200 201 // Informs the render view host and the BrowserPluginEmbedder, if present, of 202 // a Drag Source Move. 203 void DragSourceMovedTo(int client_x, int client_y, 204 int screen_x, int screen_y); 205 206 FrameTreeNode* GetFrameTreeRootForTesting() { 207 return frame_tree_root_.get(); 208 } 209 210 // WebContents ------------------------------------------------------ 211 virtual WebContentsDelegate* GetDelegate() OVERRIDE; 212 virtual void SetDelegate(WebContentsDelegate* delegate) OVERRIDE; 213 virtual NavigationControllerImpl& GetController() OVERRIDE; 214 virtual const NavigationControllerImpl& GetController() const OVERRIDE; 215 virtual BrowserContext* GetBrowserContext() const OVERRIDE; 216 virtual RenderProcessHost* GetRenderProcessHost() const OVERRIDE; 217 virtual RenderViewHost* GetRenderViewHost() const OVERRIDE; 218 virtual void GetRenderViewHostAtPosition( 219 int x, 220 int y, 221 const GetRenderViewHostCallback& callback) OVERRIDE; 222 virtual WebContents* GetEmbedderWebContents() const OVERRIDE; 223 virtual int GetEmbeddedInstanceID() const OVERRIDE; 224 virtual int GetRoutingID() const OVERRIDE; 225 virtual RenderWidgetHostView* GetRenderWidgetHostView() const OVERRIDE; 226 virtual WebContentsView* GetView() const OVERRIDE; 227 virtual WebUI* CreateWebUI(const GURL& url) OVERRIDE; 228 virtual WebUI* GetWebUI() const OVERRIDE; 229 virtual WebUI* GetCommittedWebUI() const OVERRIDE; 230 virtual void SetUserAgentOverride(const std::string& override) OVERRIDE; 231 virtual const std::string& GetUserAgentOverride() const OVERRIDE; 232 #if defined(OS_WIN) && defined(USE_AURA) 233 virtual void SetParentNativeViewAccessible( 234 gfx::NativeViewAccessible accessible_parent) OVERRIDE; 235 #endif 236 virtual const string16& GetTitle() const OVERRIDE; 237 virtual int32 GetMaxPageID() OVERRIDE; 238 virtual int32 GetMaxPageIDForSiteInstance( 239 SiteInstance* site_instance) OVERRIDE; 240 virtual SiteInstance* GetSiteInstance() const OVERRIDE; 241 virtual SiteInstance* GetPendingSiteInstance() const OVERRIDE; 242 virtual bool IsLoading() const OVERRIDE; 243 virtual bool IsWaitingForResponse() const OVERRIDE; 244 virtual const net::LoadStateWithParam& GetLoadState() const OVERRIDE; 245 virtual const string16& GetLoadStateHost() const OVERRIDE; 246 virtual uint64 GetUploadSize() const OVERRIDE; 247 virtual uint64 GetUploadPosition() const OVERRIDE; 248 virtual std::set<GURL> GetSitesInTab() const OVERRIDE; 249 virtual const std::string& GetEncoding() const OVERRIDE; 250 virtual bool DisplayedInsecureContent() const OVERRIDE; 251 virtual void IncrementCapturerCount() OVERRIDE; 252 virtual void DecrementCapturerCount() OVERRIDE; 253 virtual int GetCapturerCount() const OVERRIDE; 254 virtual bool IsCrashed() const OVERRIDE; 255 virtual void SetIsCrashed(base::TerminationStatus status, 256 int error_code) OVERRIDE; 257 virtual base::TerminationStatus GetCrashedStatus() const OVERRIDE; 258 virtual bool IsBeingDestroyed() const OVERRIDE; 259 virtual void NotifyNavigationStateChanged(unsigned changed_flags) OVERRIDE; 260 virtual base::TimeTicks GetLastSelectedTime() const OVERRIDE; 261 virtual void WasShown() OVERRIDE; 262 virtual void WasHidden() OVERRIDE; 263 virtual bool NeedToFireBeforeUnload() OVERRIDE; 264 virtual void Stop() OVERRIDE; 265 virtual WebContents* Clone() OVERRIDE; 266 virtual void FocusThroughTabTraversal(bool reverse) OVERRIDE; 267 virtual bool ShowingInterstitialPage() const OVERRIDE; 268 virtual InterstitialPage* GetInterstitialPage() const OVERRIDE; 269 virtual bool IsSavable() OVERRIDE; 270 virtual void OnSavePage() OVERRIDE; 271 virtual bool SavePage(const base::FilePath& main_file, 272 const base::FilePath& dir_path, 273 SavePageType save_type) OVERRIDE; 274 virtual void SaveFrame(const GURL& url, 275 const Referrer& referrer) OVERRIDE; 276 virtual void GenerateMHTML( 277 const base::FilePath& file, 278 const base::Callback<void(const base::FilePath&, int64)>& callback) 279 OVERRIDE; 280 virtual bool IsActiveEntry(int32 page_id) OVERRIDE; 281 282 virtual const std::string& GetContentsMimeType() const OVERRIDE; 283 virtual bool WillNotifyDisconnection() const OVERRIDE; 284 virtual void SetOverrideEncoding(const std::string& encoding) OVERRIDE; 285 virtual void ResetOverrideEncoding() OVERRIDE; 286 virtual RendererPreferences* GetMutableRendererPrefs() OVERRIDE; 287 virtual void Close() OVERRIDE; 288 virtual void SystemDragEnded() OVERRIDE; 289 virtual void UserGestureDone() OVERRIDE; 290 virtual void SetClosedByUserGesture(bool value) OVERRIDE; 291 virtual bool GetClosedByUserGesture() const OVERRIDE; 292 virtual double GetZoomLevel() const OVERRIDE; 293 virtual int GetZoomPercent(bool* enable_increment, 294 bool* enable_decrement) const OVERRIDE; 295 virtual void ViewSource() OVERRIDE; 296 virtual void ViewFrameSource(const GURL& url, 297 const PageState& page_state) OVERRIDE; 298 virtual int GetMinimumZoomPercent() const OVERRIDE; 299 virtual int GetMaximumZoomPercent() const OVERRIDE; 300 virtual gfx::Size GetPreferredSize() const OVERRIDE; 301 virtual bool GotResponseToLockMouseRequest(bool allowed) OVERRIDE; 302 virtual bool HasOpener() const OVERRIDE; 303 virtual void DidChooseColorInColorChooser(SkColor color) OVERRIDE; 304 virtual void DidEndColorChooser() OVERRIDE; 305 virtual int DownloadImage(const GURL& url, 306 bool is_favicon, 307 uint32_t preferred_image_size, 308 uint32_t max_image_size, 309 const ImageDownloadCallback& callback) OVERRIDE; 310 311 // Implementation of PageNavigator. 312 virtual WebContents* OpenURL(const OpenURLParams& params) OVERRIDE; 313 314 // Implementation of IPC::Sender. 315 virtual bool Send(IPC::Message* message) OVERRIDE; 316 317 // RenderViewHostDelegate ---------------------------------------------------- 318 319 virtual RenderViewHostDelegateView* GetDelegateView() OVERRIDE; 320 virtual RenderViewHostDelegate::RendererManagement* 321 GetRendererManagementDelegate() OVERRIDE; 322 virtual bool OnMessageReceived(RenderViewHost* render_view_host, 323 const IPC::Message& message) OVERRIDE; 324 virtual const GURL& GetURL() const OVERRIDE; 325 virtual const GURL& GetVisibleURL() const OVERRIDE; 326 virtual const GURL& GetLastCommittedURL() const OVERRIDE; 327 virtual WebContents* GetAsWebContents() OVERRIDE; 328 virtual gfx::Rect GetRootWindowResizerRect() const OVERRIDE; 329 virtual void RenderViewCreated(RenderViewHost* render_view_host) OVERRIDE; 330 virtual void RenderViewReady(RenderViewHost* render_view_host) OVERRIDE; 331 virtual void RenderViewTerminated(RenderViewHost* render_view_host, 332 base::TerminationStatus status, 333 int error_code) OVERRIDE; 334 virtual void RenderViewDeleted(RenderViewHost* render_view_host) OVERRIDE; 335 virtual void DidStartProvisionalLoadForFrame( 336 RenderViewHost* render_view_host, 337 int64 frame_id, 338 int64 parent_frame_id, 339 bool main_frame, 340 const GURL& url) OVERRIDE; 341 virtual void DidRedirectProvisionalLoad( 342 RenderViewHost* render_view_host, 343 int32 page_id, 344 const GURL& source_url, 345 const GURL& target_url) OVERRIDE; 346 virtual void DidFailProvisionalLoadWithError( 347 RenderViewHost* render_view_host, 348 const ViewHostMsg_DidFailProvisionalLoadWithError_Params& params) 349 OVERRIDE; 350 virtual void DidNavigate( 351 RenderViewHost* render_view_host, 352 const ViewHostMsg_FrameNavigate_Params& params) OVERRIDE; 353 virtual void UpdateState(RenderViewHost* render_view_host, 354 int32 page_id, 355 const PageState& page_state) OVERRIDE; 356 virtual void UpdateTitle(RenderViewHost* render_view_host, 357 int32 page_id, 358 const string16& title, 359 base::i18n::TextDirection title_direction) OVERRIDE; 360 virtual void UpdateEncoding(RenderViewHost* render_view_host, 361 const std::string& encoding) OVERRIDE; 362 virtual void UpdateTargetURL(int32 page_id, const GURL& url) OVERRIDE; 363 virtual void Close(RenderViewHost* render_view_host) OVERRIDE; 364 virtual void RequestMove(const gfx::Rect& new_bounds) OVERRIDE; 365 virtual void SwappedOut(RenderViewHost* render_view_host) OVERRIDE; 366 virtual void DidStartLoading(RenderViewHost* render_view_host) OVERRIDE; 367 virtual void DidStopLoading(RenderViewHost* render_view_host) OVERRIDE; 368 virtual void DidCancelLoading() OVERRIDE; 369 virtual void DidChangeLoadProgress(double progress) OVERRIDE; 370 virtual void DidDisownOpener(RenderViewHost* rvh) OVERRIDE; 371 virtual void DidAccessInitialDocument() OVERRIDE; 372 virtual void DocumentAvailableInMainFrame( 373 RenderViewHost* render_view_host) OVERRIDE; 374 virtual void DocumentOnLoadCompletedInMainFrame( 375 RenderViewHost* render_view_host, 376 int32 page_id) OVERRIDE; 377 virtual void RequestOpenURL(RenderViewHost* rvh, 378 const GURL& url, 379 const Referrer& referrer, 380 WindowOpenDisposition disposition, 381 int64 source_frame_id, 382 bool should_replace_current_entry, 383 bool user_gesture) OVERRIDE; 384 virtual void RequestTransferURL( 385 const GURL& url, 386 const Referrer& referrer, 387 WindowOpenDisposition disposition, 388 int64 source_frame_id, 389 const GlobalRequestID& transferred_global_request_id, 390 bool should_replace_current_entry, 391 bool user_gesture) OVERRIDE; 392 virtual void RouteCloseEvent(RenderViewHost* rvh) OVERRIDE; 393 virtual void RouteMessageEvent( 394 RenderViewHost* rvh, 395 const ViewMsg_PostMessage_Params& params) OVERRIDE; 396 virtual void RunJavaScriptMessage(RenderViewHost* rvh, 397 const string16& message, 398 const string16& default_prompt, 399 const GURL& frame_url, 400 JavaScriptMessageType type, 401 IPC::Message* reply_msg, 402 bool* did_suppress_message) OVERRIDE; 403 virtual void RunBeforeUnloadConfirm(RenderViewHost* rvh, 404 const string16& message, 405 bool is_reload, 406 IPC::Message* reply_msg) OVERRIDE; 407 virtual bool AddMessageToConsole(int32 level, 408 const string16& message, 409 int32 line_no, 410 const string16& source_id) OVERRIDE; 411 virtual RendererPreferences GetRendererPrefs( 412 BrowserContext* browser_context) const OVERRIDE; 413 virtual WebPreferences GetWebkitPrefs() OVERRIDE; 414 virtual void OnUserGesture() OVERRIDE; 415 virtual void OnIgnoredUIEvent() OVERRIDE; 416 virtual void RendererUnresponsive(RenderViewHost* render_view_host, 417 bool is_during_unload) OVERRIDE; 418 virtual void RendererResponsive(RenderViewHost* render_view_host) OVERRIDE; 419 virtual void LoadStateChanged(const GURL& url, 420 const net::LoadStateWithParam& load_state, 421 uint64 upload_position, 422 uint64 upload_size) OVERRIDE; 423 virtual void WorkerCrashed() OVERRIDE; 424 virtual void Activate() OVERRIDE; 425 virtual void Deactivate() OVERRIDE; 426 virtual void LostCapture() OVERRIDE; 427 virtual void HandleMouseDown() OVERRIDE; 428 virtual void HandleMouseUp() OVERRIDE; 429 virtual void HandlePointerActivate() OVERRIDE; 430 virtual void HandleGestureBegin() OVERRIDE; 431 virtual void HandleGestureEnd() OVERRIDE; 432 virtual void RunFileChooser( 433 RenderViewHost* render_view_host, 434 const FileChooserParams& params) OVERRIDE; 435 virtual void ToggleFullscreenMode(bool enter_fullscreen) OVERRIDE; 436 virtual bool IsFullscreenForCurrentTab() const OVERRIDE; 437 virtual void UpdatePreferredSize(const gfx::Size& pref_size) OVERRIDE; 438 virtual void ResizeDueToAutoResize(const gfx::Size& new_size) OVERRIDE; 439 virtual void RequestToLockMouse(bool user_gesture, 440 bool last_unlocked_by_target) OVERRIDE; 441 virtual void LostMouseLock() OVERRIDE; 442 virtual void CreateNewWindow( 443 int route_id, 444 int main_frame_route_id, 445 const ViewHostMsg_CreateWindow_Params& params, 446 SessionStorageNamespace* session_storage_namespace) OVERRIDE; 447 virtual void CreateNewWidget(int route_id, 448 WebKit::WebPopupType popup_type) OVERRIDE; 449 virtual void CreateNewFullscreenWidget(int route_id) OVERRIDE; 450 virtual void ShowCreatedWindow(int route_id, 451 WindowOpenDisposition disposition, 452 const gfx::Rect& initial_pos, 453 bool user_gesture) OVERRIDE; 454 virtual void ShowCreatedWidget(int route_id, 455 const gfx::Rect& initial_pos) OVERRIDE; 456 virtual void ShowCreatedFullscreenWidget(int route_id) OVERRIDE; 457 virtual void ShowContextMenu(const ContextMenuParams& params) OVERRIDE; 458 virtual void RequestMediaAccessPermission( 459 const MediaStreamRequest& request, 460 const MediaResponseCallback& callback) OVERRIDE; 461 virtual SessionStorageNamespace* GetSessionStorageNamespace( 462 SiteInstance* instance) OVERRIDE; 463 464 // RenderWidgetHostDelegate -------------------------------------------------- 465 466 virtual void RenderWidgetDeleted( 467 RenderWidgetHostImpl* render_widget_host) OVERRIDE; 468 virtual bool PreHandleKeyboardEvent( 469 const NativeWebKeyboardEvent& event, 470 bool* is_keyboard_shortcut) OVERRIDE; 471 virtual void HandleKeyboardEvent( 472 const NativeWebKeyboardEvent& event) OVERRIDE; 473 virtual bool PreHandleWheelEvent( 474 const WebKit::WebMouseWheelEvent& event) OVERRIDE; 475 virtual void DidSendScreenRects(RenderWidgetHostImpl* rwh) OVERRIDE; 476 #if defined(OS_WIN) && defined(USE_AURA) 477 virtual gfx::NativeViewAccessible GetParentNativeViewAccessible() OVERRIDE; 478 #endif 479 480 // RenderViewHostManager::Delegate ------------------------------------------- 481 482 virtual bool CreateRenderViewForRenderManager( 483 RenderViewHost* render_view_host, int opener_route_id) OVERRIDE; 484 virtual void BeforeUnloadFiredFromRenderManager( 485 bool proceed, const base::TimeTicks& proceed_time, 486 bool* proceed_to_fire_unload) OVERRIDE; 487 virtual void RenderProcessGoneFromRenderManager( 488 RenderViewHost* render_view_host) OVERRIDE; 489 virtual void UpdateRenderViewSizeForRenderManager() OVERRIDE; 490 virtual void NotifySwappedFromRenderManager( 491 RenderViewHost* old_render_view_host) OVERRIDE; 492 virtual int CreateOpenerRenderViewsForRenderManager( 493 SiteInstance* instance) OVERRIDE; 494 virtual NavigationControllerImpl& 495 GetControllerForRenderManager() OVERRIDE; 496 virtual WebUIImpl* CreateWebUIForRenderManager(const GURL& url) OVERRIDE; 497 virtual NavigationEntry* 498 GetLastCommittedNavigationEntryForRenderManager() OVERRIDE; 499 virtual bool FocusLocationBarByDefault() OVERRIDE; 500 virtual void SetFocusToLocationBar(bool select_all) OVERRIDE; 501 virtual void CreateViewAndSetSizeForRVH(RenderViewHost* rvh) OVERRIDE; 502 503 // NotificationObserver ------------------------------------------------------ 504 505 virtual void Observe(int type, 506 const NotificationSource& source, 507 const NotificationDetails& details) OVERRIDE; 508 509 510 private: 511 friend class NavigationControllerImpl; 512 friend class WebContentsObserver; 513 friend class WebContents; // To implement factory methods. 514 515 FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, NoJSMessageOnInterstitials); 516 FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, UpdateTitle); 517 FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, FindOpenerRVHWhenPending); 518 FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, 519 CrossSiteCantPreemptAfterUnload); 520 FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, PendingContents); 521 FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, FrameTreeShape); 522 FRIEND_TEST_ALL_PREFIXES(FormStructureBrowserTest, HTMLFiles); 523 FRIEND_TEST_ALL_PREFIXES(NavigationControllerTest, HistoryNavigate); 524 FRIEND_TEST_ALL_PREFIXES(RenderViewHostManagerTest, PageDoesBackAndReload); 525 526 // So InterstitialPageImpl can access SetIsLoading. 527 friend class InterstitialPageImpl; 528 529 // TODO(brettw) TestWebContents shouldn't exist! 530 friend class TestWebContents; 531 532 class DestructionObserver; 533 534 // See WebContents::Create for a description of these parameters. 535 WebContentsImpl(BrowserContext* browser_context, 536 WebContentsImpl* opener); 537 538 // Add and remove observers for page navigation notifications. Adding or 539 // removing multiple times has no effect. The order in which notifications 540 // are sent to observers is undefined. Clients must be sure to remove the 541 // observer before they go away. 542 void AddObserver(WebContentsObserver* observer); 543 void RemoveObserver(WebContentsObserver* observer); 544 545 // Clears this tab's opener if it has been closed. 546 void OnWebContentsDestroyed(WebContentsImpl* web_contents); 547 548 // Creates and adds to the map a destruction observer watching |web_contents|. 549 // No-op if such an observer already exists. 550 void AddDestructionObserver(WebContentsImpl* web_contents); 551 552 // Deletes and removes from the map a destruction observer 553 // watching |web_contents|. No-op if there is no such observer. 554 void RemoveDestructionObserver(WebContentsImpl* web_contents); 555 556 // Callback function when showing JS dialogs. 557 void OnDialogClosed(RenderViewHost* rvh, 558 IPC::Message* reply_msg, 559 bool success, 560 const string16& user_input); 561 562 // Callback function when requesting permission to access the PPAPI broker. 563 // |result| is true if permission was granted. 564 void OnPpapiBrokerPermissionResult(int routing_id, bool result); 565 566 // IPC message handlers. 567 void OnDidLoadResourceFromMemoryCache(const GURL& url, 568 const std::string& security_info, 569 const std::string& http_request, 570 const std::string& mime_type, 571 ResourceType::Type resource_type); 572 void OnDidDisplayInsecureContent(); 573 void OnDidRunInsecureContent(const std::string& security_origin, 574 const GURL& target_url); 575 void OnDocumentLoadedInFrame(int64 frame_id); 576 void OnDidFinishLoad(int64 frame_id, 577 const GURL& url, 578 bool is_main_frame); 579 void OnDidFailLoadWithError(int64 frame_id, 580 const GURL& url, 581 bool is_main_frame, 582 int error_code, 583 const string16& error_description); 584 void OnGoToEntryAtOffset(int offset); 585 void OnUpdateZoomLimits(int minimum_percent, 586 int maximum_percent, 587 bool remember); 588 void OnEnumerateDirectory(int request_id, const base::FilePath& path); 589 void OnJSOutOfMemory(); 590 591 void OnRegisterProtocolHandler(const std::string& protocol, 592 const GURL& url, 593 const string16& title, 594 bool user_gesture); 595 void OnFindReply(int request_id, 596 int number_of_matches, 597 const gfx::Rect& selection_rect, 598 int active_match_ordinal, 599 bool final_update); 600 void OnDidProgrammaticallyScroll(const gfx::Vector2d& scroll_point); 601 #if defined(OS_ANDROID) 602 void OnFindMatchRectsReply(int version, 603 const std::vector<gfx::RectF>& rects, 604 const gfx::RectF& active_rect); 605 606 void OnOpenDateTimeDialog( 607 const ViewHostMsg_DateTimeDialogValue_Params& value); 608 #endif 609 void OnCrashedPlugin(const base::FilePath& plugin_path, 610 base::ProcessId plugin_pid); 611 void OnAppCacheAccessed(const GURL& manifest_url, bool blocked_by_policy); 612 void OnOpenColorChooser(int color_chooser_id, SkColor color); 613 void OnEndColorChooser(int color_chooser_id); 614 void OnSetSelectedColorInColorChooser(int color_chooser_id, SkColor color); 615 void OnPepperPluginHung(int plugin_child_id, 616 const base::FilePath& path, 617 bool is_hung); 618 void OnWebUISend(const GURL& source_url, 619 const std::string& name, 620 const base::ListValue& args); 621 void OnRequestPpapiBrokerPermission(int routing_id, 622 const GURL& url, 623 const base::FilePath& plugin_path); 624 void OnBrowserPluginMessage(const IPC::Message& message); 625 void OnDidDownloadImage(int id, 626 int http_status_code, 627 const GURL& image_url, 628 int requested_size, 629 const std::vector<SkBitmap>& bitmaps); 630 void OnUpdateFaviconURL(int32 page_id, 631 const std::vector<FaviconURL>& candidates); 632 void OnFrameAttached(int64 parent_frame_id, 633 int64 frame_id, 634 const std::string& frame_name); 635 void OnFrameDetached(int64 parent_frame_id, int64 frame_id); 636 637 void OnMediaNotification(int64 player_cookie, 638 bool has_video, 639 bool has_audio, 640 bool is_playing); 641 642 // Changes the IsLoading state and notifies delegate as needed 643 // |details| is used to provide details on the load that just finished 644 // (but can be null if not applicable). Can be overridden. 645 void SetIsLoading(bool is_loading, 646 LoadNotificationDetails* details); 647 648 // Called by derived classes to indicate that we're no longer waiting for a 649 // response. This won't actually update the throbber, but it will get picked 650 // up at the next animation step if the throbber is going. 651 void SetNotWaitingForResponse() { waiting_for_response_ = false; } 652 653 // Navigation helpers -------------------------------------------------------- 654 // 655 // These functions are helpers for Navigate() and DidNavigate(). 656 657 // Handles post-navigation tasks in DidNavigate AFTER the entry has been 658 // committed to the navigation controller. Note that the navigation entry is 659 // not provided since it may be invalid/changed after being committed. The 660 // current navigation entry is in the NavigationController at this point. 661 void DidNavigateMainFramePostCommit( 662 const LoadCommittedDetails& details, 663 const ViewHostMsg_FrameNavigate_Params& params); 664 void DidNavigateAnyFramePostCommit( 665 RenderViewHost* render_view_host, 666 const LoadCommittedDetails& details, 667 const ViewHostMsg_FrameNavigate_Params& params); 668 669 // Specifies whether the passed in URL should be assigned as the site of the 670 // current SiteInstance, if it does not yet have a site. 671 bool ShouldAssignSiteForURL(const GURL& url); 672 673 // If our controller was restored, update the max page ID associated with the 674 // given RenderViewHost to be larger than the number of restored entries. 675 // This is called in CreateRenderView before any navigations in the RenderView 676 // have begun, to prevent any races in updating RenderView::next_page_id. 677 void UpdateMaxPageIDIfNecessary(RenderViewHost* rvh); 678 679 // Saves the given title to the navigation entry and does associated work. It 680 // will update history and the view for the new title, and also synthesize 681 // titles for file URLs that have none (so we require that the URL of the 682 // entry already be set). 683 // 684 // This is used as the backend for state updates, which include a new title, 685 // or the dedicated set title message. It returns true if the new title is 686 // different and was therefore updated. 687 bool UpdateTitleForEntry(NavigationEntryImpl* entry, 688 const string16& title); 689 690 // Causes the WebContentsImpl to navigate in the right renderer to |entry|, 691 // which must be already part of the entries in the navigation controller. 692 // This does not change the NavigationController state. 693 bool NavigateToEntry(const NavigationEntryImpl& entry, 694 NavigationController::ReloadType reload_type); 695 696 // Sets the history for this WebContentsImpl to |history_length| entries, and 697 // moves the current page_id to the last entry in the list if it's valid. 698 // This is mainly used when a prerendered page is swapped into the current 699 // tab. The method is virtual for testing. 700 virtual void SetHistoryLengthAndPrune( 701 const SiteInstance* site_instance, 702 int merge_history_length, 703 int32 minimum_page_id); 704 705 // Recursively creates swapped out RenderViews for this tab's opener chain 706 // (including this tab) in the given SiteInstance, allowing other tabs to send 707 // cross-process JavaScript calls to their opener(s). Returns the route ID of 708 // this tab's RenderView for |instance|. 709 int CreateOpenerRenderViews(SiteInstance* instance); 710 711 // Helper for CreateNewWidget/CreateNewFullscreenWidget. 712 void CreateNewWidget(int route_id, 713 bool is_fullscreen, 714 WebKit::WebPopupType popup_type); 715 716 // Helper for ShowCreatedWidget/ShowCreatedFullscreenWidget. 717 void ShowCreatedWidget(int route_id, 718 bool is_fullscreen, 719 const gfx::Rect& initial_pos); 720 721 // Finds the new RenderWidgetHost and returns it. Note that this can only be 722 // called once as this call also removes it from the internal map. 723 RenderWidgetHostView* GetCreatedWidget(int route_id); 724 725 // Finds the new WebContentsImpl by route_id, initializes it for 726 // renderer-initiated creation, and returns it. Note that this can only be 727 // called once as this call also removes it from the internal map. 728 WebContentsImpl* GetCreatedWindow(int route_id); 729 730 // Returns the RenderWidgetHostView that is associated with a native window 731 // and can be used in showing created widgets. 732 // If this WebContents belongs to a browser plugin guest, there is no native 733 // window 'view' associated with this WebContents. This method returns the 734 // 'view' of the embedder instead. 735 RenderWidgetHostViewPort* GetRenderWidgetHostViewPort() const; 736 737 // Misc non-view stuff ------------------------------------------------------- 738 739 // Helper functions for sending notifications. 740 void NotifySwapped(RenderViewHost* old_render_view_host); 741 void NotifyConnected(); 742 void NotifyDisconnected(); 743 void NotifyNavigationEntryCommitted(const LoadCommittedDetails& load_details); 744 745 void SetEncoding(const std::string& encoding); 746 747 RenderViewHostImpl* GetRenderViewHostImpl(); 748 749 FrameTreeNode* FindFrameTreeNodeByID(int64 frame_id); 750 751 // Removes browser plugin embedder if there is one. 752 void RemoveBrowserPluginEmbedder(); 753 754 // Clear |render_view_host|'s PowerSaveBlockers. 755 void ClearPowerSaveBlockers(RenderViewHost* render_view_host); 756 757 // Clear all PowerSaveBlockers, leave power_save_blocker_ empty. 758 void ClearAllPowerSaveBlockers(); 759 760 // Data for core operation --------------------------------------------------- 761 762 // Delegate for notifying our owner about stuff. Not owned by us. 763 WebContentsDelegate* delegate_; 764 765 // Handles the back/forward list and loading. 766 NavigationControllerImpl controller_; 767 768 // The corresponding view. 769 scoped_ptr<WebContentsViewPort> view_; 770 771 // The view of the RVHD. Usually this is our WebContentsView implementation, 772 // but if an embedder uses a different WebContentsView, they'll need to 773 // provide this. 774 RenderViewHostDelegateView* render_view_host_delegate_view_; 775 776 // Tracks created WebContentsImpl objects that have not been shown yet. They 777 // are identified by the route ID passed to CreateNewWindow. 778 typedef std::map<int, WebContentsImpl*> PendingContents; 779 PendingContents pending_contents_; 780 781 // These maps hold on to the widgets that we created on behalf of the renderer 782 // that haven't shown yet. 783 typedef std::map<int, RenderWidgetHostView*> PendingWidgetViews; 784 PendingWidgetViews pending_widget_views_; 785 786 typedef std::map<WebContentsImpl*, DestructionObserver*> DestructionObservers; 787 DestructionObservers destruction_observers_; 788 789 // A list of observers notified when page state changes. Weak references. 790 // This MUST be listed above render_manager_ since at destruction time the 791 // latter might cause RenderViewHost's destructor to call us and we might use 792 // the observer list then. 793 ObserverList<WebContentsObserver> observers_; 794 795 // The tab that opened this tab, if any. Will be set to null if the opener 796 // is closed. 797 WebContentsImpl* opener_; 798 799 #if defined(OS_WIN) && defined(USE_AURA) 800 gfx::NativeViewAccessible accessible_parent_; 801 #endif 802 803 // Helper classes ------------------------------------------------------------ 804 805 // Maps the RenderViewHost to its media_player_cookie and PowerSaveBlocker 806 // pairs. Key is the RenderViewHost, value is the map which maps player_cookie 807 // on to PowerSaveBlocker. 808 typedef std::map<RenderViewHost*, std::map<int64, PowerSaveBlocker*> > 809 PowerSaveBlockerMap; 810 PowerSaveBlockerMap power_save_blockers_; 811 812 // Manages creation and swapping of render views. 813 RenderViewHostManager render_manager_; 814 815 #if defined(OS_ANDROID) 816 // Manages injecting Java objects into all RenderViewHosts associated with 817 // this WebContentsImpl. 818 scoped_ptr<JavaBridgeDispatcherHostManager> 819 java_bridge_dispatcher_host_manager_; 820 #endif 821 822 // SavePackage, lazily created. 823 scoped_refptr<SavePackage> save_package_; 824 825 // Data for loading state ---------------------------------------------------- 826 827 // Indicates whether we're currently loading a resource. 828 bool is_loading_; 829 830 // Indicates if the tab is considered crashed. 831 base::TerminationStatus crashed_status_; 832 int crashed_error_code_; 833 834 // Whether this WebContents is waiting for a first-response for the 835 // main resource of the page. This controls whether the throbber state is 836 // "waiting" or "loading." 837 bool waiting_for_response_; 838 839 // Map of SiteInstance ID to max page ID for this tab. A page ID is specific 840 // to a given tab and SiteInstance, and must be valid for the lifetime of the 841 // WebContentsImpl. 842 std::map<int32, int32> max_page_ids_; 843 844 // System time at which the current load was started. 845 base::TimeTicks current_load_start_; 846 847 // The current load state and the URL associated with it. 848 net::LoadStateWithParam load_state_; 849 string16 load_state_host_; 850 // Upload progress, for displaying in the status bar. 851 // Set to zero when there is no significant upload happening. 852 uint64 upload_size_; 853 uint64 upload_position_; 854 855 // Data for current page ----------------------------------------------------- 856 857 // When a title cannot be taken from any entry, this title will be used. 858 string16 page_title_when_no_navigation_entry_; 859 860 // When a navigation occurs, we record its contents MIME type. It can be 861 // used to check whether we can do something for some special contents. 862 std::string contents_mime_type_; 863 864 // Character encoding. 865 std::string encoding_; 866 867 // True if this is a secure page which displayed insecure content. 868 bool displayed_insecure_content_; 869 870 // The frame tree structure of the current page. 871 scoped_ptr<FrameTreeNode> frame_tree_root_; 872 873 // Data for misc internal state ---------------------------------------------- 874 875 // When > 0, the WebContents is currently being captured (e.g., for 876 // screenshots or mirroring); and the underlying RenderWidgetHost should not 877 // be told it is hidden. 878 int capturer_count_; 879 880 // Tracks whether RWHV should be visible once capturer_count_ becomes zero. 881 bool should_normally_be_visible_; 882 883 // See getter above. 884 bool is_being_destroyed_; 885 886 // Indicates whether we should notify about disconnection of this 887 // WebContentsImpl. This is used to ensure disconnection notifications only 888 // happen if a connection notification has happened and that they happen only 889 // once. 890 bool notify_disconnection_; 891 892 // Pointer to the JavaScript dialog manager, lazily assigned. Used because the 893 // delegate of this WebContentsImpl is nulled before its destructor is called. 894 JavaScriptDialogManager* dialog_manager_; 895 896 // Set to true when there is an active "before unload" dialog. When true, 897 // we've forced the throbber to start in Navigate, and we need to remember to 898 // turn it off in OnJavaScriptMessageBoxClosed if the navigation is canceled. 899 bool is_showing_before_unload_dialog_; 900 901 // Settings that get passed to the renderer process. 902 RendererPreferences renderer_preferences_; 903 904 // The time that this tab was last selected. 905 base::TimeTicks last_selected_time_; 906 907 // See description above setter. 908 bool closed_by_user_gesture_; 909 910 // Minimum/maximum zoom percent. 911 int minimum_zoom_percent_; 912 int maximum_zoom_percent_; 913 // If true, the default zoom limits have been overriden for this tab, in which 914 // case we don't want saved settings to apply to it and we don't want to 915 // remember it. 916 bool temporary_zoom_settings_; 917 918 // The intrinsic size of the page. 919 gfx::Size preferred_size_; 920 921 #if defined(OS_ANDROID) 922 // Date time chooser opened by this tab. 923 // Only used in Android since all other platforms use a multi field UI. 924 scoped_ptr<DateTimeChooserAndroid> date_time_chooser_; 925 #endif 926 927 // Color chooser that was opened by this tab. 928 scoped_ptr<ColorChooser> color_chooser_; 929 930 // A unique identifier for the current color chooser. Identifiers are unique 931 // across a renderer process. This avoids race conditions in synchronizing 932 // the browser and renderer processes. For example, if a renderer closes one 933 // chooser and opens another, and simultaneously the user picks a color in the 934 // first chooser, the IDs can be used to drop the "chose a color" message 935 // rather than erroneously tell the renderer that the user picked a color in 936 // the second chooser. 937 int color_chooser_identifier_; 938 939 // Manages the embedder state for browser plugins, if this WebContents is an 940 // embedder; NULL otherwise. 941 scoped_ptr<BrowserPluginEmbedder> browser_plugin_embedder_; 942 // Manages the guest state for browser plugin, if this WebContents is a guest; 943 // NULL otherwise. 944 scoped_ptr<BrowserPluginGuest> browser_plugin_guest_; 945 946 // This must be at the end, or else we might get notifications and use other 947 // member variables that are gone. 948 NotificationRegistrar registrar_; 949 950 // Used during IPC message dispatching so that the handlers can get a pointer 951 // to the RVH through which the message was received. 952 RenderViewHost* message_source_; 953 954 // All live RenderWidgetHostImpls that are created by this object and may 955 // outlive it. 956 std::set<RenderWidgetHostImpl*> created_widgets_; 957 958 // Routing id of the shown fullscreen widget or MSG_ROUTING_NONE otherwise. 959 int fullscreen_widget_routing_id_; 960 961 // Maps the ids of pending image downloads to their callbacks 962 typedef std::map<int, ImageDownloadCallback> ImageDownloadMap; 963 ImageDownloadMap image_download_map_; 964 965 DISALLOW_COPY_AND_ASSIGN(WebContentsImpl); 966 }; 967 968 } // namespace content 969 970 #endif // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_ 971
