web_contents_impl.cc revision bb1529ce867d8845a77ec7cdf3e3003ef1771a40
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#include "content/browser/web_contents/web_contents_impl.h" 6 7#include <utility> 8 9#include "base/command_line.h" 10#include "base/debug/trace_event.h" 11#include "base/lazy_instance.h" 12#include "base/logging.h" 13#include "base/metrics/histogram.h" 14#include "base/metrics/stats_counters.h" 15#include "base/strings/string16.h" 16#include "base/strings/string_number_conversions.h" 17#include "base/strings/string_util.h" 18#include "base/strings/utf_string_conversions.h" 19#include "base/sys_info.h" 20#include "base/time/time.h" 21#include "cc/base/switches.h" 22#include "content/browser/browser_plugin/browser_plugin_embedder.h" 23#include "content/browser/browser_plugin/browser_plugin_guest.h" 24#include "content/browser/browser_plugin/browser_plugin_guest_manager.h" 25#include "content/browser/child_process_security_policy_impl.h" 26#include "content/browser/devtools/devtools_manager_impl.h" 27#include "content/browser/dom_storage/dom_storage_context_wrapper.h" 28#include "content/browser/dom_storage/session_storage_namespace_impl.h" 29#include "content/browser/download/download_stats.h" 30#include "content/browser/download/mhtml_generation_manager.h" 31#include "content/browser/download/save_package.h" 32#include "content/browser/gpu/gpu_data_manager_impl.h" 33#include "content/browser/gpu/gpu_process_host.h" 34#include "content/browser/host_zoom_map_impl.h" 35#include "content/browser/loader/resource_dispatcher_host_impl.h" 36#include "content/browser/power_save_blocker_impl.h" 37#include "content/browser/renderer_host/render_process_host_impl.h" 38#include "content/browser/renderer_host/render_view_host_impl.h" 39#include "content/browser/renderer_host/render_widget_host_impl.h" 40#include "content/browser/site_instance_impl.h" 41#include "content/browser/web_contents/interstitial_page_impl.h" 42#include "content/browser/web_contents/navigation_entry_impl.h" 43#include "content/browser/web_contents/web_contents_view_guest.h" 44#include "content/browser/webui/generic_handler.h" 45#include "content/browser/webui/web_ui_controller_factory_registry.h" 46#include "content/browser/webui/web_ui_impl.h" 47#include "content/common/browser_plugin/browser_plugin_constants.h" 48#include "content/common/browser_plugin/browser_plugin_messages.h" 49#include "content/common/image_messages.h" 50#include "content/common/ssl_status_serialization.h" 51#include "content/common/view_messages.h" 52#include "content/port/browser/render_view_host_delegate_view.h" 53#include "content/port/browser/render_widget_host_view_port.h" 54#include "content/public/browser/browser_context.h" 55#include "content/public/browser/color_chooser.h" 56#include "content/public/browser/compositor_util.h" 57#include "content/public/browser/content_browser_client.h" 58#include "content/public/browser/devtools_agent_host.h" 59#include "content/public/browser/download_manager.h" 60#include "content/public/browser/download_url_parameters.h" 61#include "content/public/browser/invalidate_type.h" 62#include "content/public/browser/javascript_dialog_manager.h" 63#include "content/public/browser/load_from_memory_cache_details.h" 64#include "content/public/browser/load_notification_details.h" 65#include "content/public/browser/navigation_details.h" 66#include "content/public/browser/notification_details.h" 67#include "content/public/browser/notification_service.h" 68#include "content/public/browser/resource_request_details.h" 69#include "content/public/browser/storage_partition.h" 70#include "content/public/browser/user_metrics.h" 71#include "content/public/browser/web_contents_delegate.h" 72#include "content/public/browser/web_contents_observer.h" 73#include "content/public/browser/web_contents_view.h" 74#include "content/public/common/bindings_policy.h" 75#include "content/public/common/content_constants.h" 76#include "content/public/common/content_switches.h" 77#include "content/public/common/page_zoom.h" 78#include "content/public/common/url_constants.h" 79#include "net/base/mime_util.h" 80#include "net/base/net_util.h" 81#include "net/base/network_change_notifier.h" 82#include "net/url_request/url_request_context_getter.h" 83#include "ui/base/layout.h" 84#include "ui/base/touch/touch_device.h" 85#include "ui/base/touch/touch_enabled.h" 86#include "ui/base/ui_base_switches.h" 87#include "ui/gfx/display.h" 88#include "ui/gfx/screen.h" 89#include "ui/gl/gl_switches.h" 90#include "webkit/common/webpreferences.h" 91 92#if defined(OS_ANDROID) 93#include "content/browser/android/date_time_chooser_android.h" 94#include "content/public/browser/android/content_view_core.h" 95#endif 96 97#if defined(OS_MACOSX) 98#include "base/mac/foundation_util.h" 99#include "ui/gl/io_surface_support_mac.h" 100#endif 101 102#if defined(OS_ANDROID) 103#include "content/browser/renderer_host/java/java_bridge_dispatcher_host_manager.h" 104#endif 105 106// Cross-Site Navigations 107// 108// If a WebContentsImpl is told to navigate to a different web site (as 109// determined by SiteInstance), it will replace its current RenderViewHost with 110// a new RenderViewHost dedicated to the new SiteInstance. This works as 111// follows: 112// 113// - Navigate determines whether the destination is cross-site, and if so, 114// it creates a pending_render_view_host_. 115// - The pending RVH is "suspended," so that no navigation messages are sent to 116// its renderer until the onbeforeunload JavaScript handler has a chance to 117// run in the current RVH. 118// - The pending RVH tells CrossSiteRequestManager (a thread-safe singleton) 119// that it has a pending cross-site request. ResourceDispatcherHost will 120// check for this when the response arrives. 121// - The current RVH runs its onbeforeunload handler. If it returns false, we 122// cancel all the pending logic. Otherwise we allow the pending RVH to send 123// the navigation request to its renderer. 124// - ResourceDispatcherHost receives a ResourceRequest on the IO thread for the 125// main resource load on the pending RVH. It checks CrossSiteRequestManager 126// to see that it is a cross-site request, and installs a 127// CrossSiteResourceHandler. 128// - When RDH receives a response, the BufferedResourceHandler determines 129// whether it is a download. If so, it sends a message to the new renderer 130// causing it to cancel the request, and the download proceeds. For now, the 131// pending RVH remains until the next DidNavigate event for this 132// WebContentsImpl. This isn't ideal, but it doesn't affect any functionality. 133// - After RDH receives a response and determines that it is safe and not a 134// download, it pauses the response to first run the old page's onunload 135// handler. It does this by asynchronously calling the OnCrossSiteResponse 136// method of WebContentsImpl on the UI thread, which sends a SwapOut message 137// to the current RVH. 138// - Once the onunload handler is finished, a SwapOut_ACK message is sent to 139// the ResourceDispatcherHost, who unpauses the response. Data is then sent 140// to the pending RVH. 141// - The pending renderer sends a FrameNavigate message that invokes the 142// DidNavigate method. This replaces the current RVH with the 143// pending RVH. 144// - The previous renderer is kept swapped out in RenderViewHostManager in case 145// the user goes back. The process only stays live if another tab is using 146// it, but if so, the existing frame relationships will be maintained. 147 148namespace content { 149namespace { 150 151// Amount of time we wait between when a key event is received and the renderer 152// is queried for its state and pushed to the NavigationEntry. 153const int kQueryStateDelay = 5000; 154 155const int kSyncWaitDelay = 40; 156 157const char kDotGoogleDotCom[] = ".google.com"; 158 159base::LazyInstance<std::vector<WebContents::CreatedCallback> > 160g_created_callbacks = LAZY_INSTANCE_INITIALIZER; 161 162static int StartDownload(content::RenderViewHost* rvh, 163 const GURL& url, 164 bool is_favicon, 165 uint32_t preferred_image_size, 166 uint32_t max_image_size) { 167 static int g_next_image_download_id = 0; 168 rvh->Send(new ImageMsg_DownloadImage(rvh->GetRoutingID(), 169 ++g_next_image_download_id, 170 url, 171 is_favicon, 172 preferred_image_size, 173 max_image_size)); 174 return g_next_image_download_id; 175} 176 177ViewMsg_Navigate_Type::Value GetNavigationType( 178 BrowserContext* browser_context, const NavigationEntryImpl& entry, 179 NavigationController::ReloadType reload_type) { 180 switch (reload_type) { 181 case NavigationControllerImpl::RELOAD: 182 return ViewMsg_Navigate_Type::RELOAD; 183 case NavigationControllerImpl::RELOAD_IGNORING_CACHE: 184 return ViewMsg_Navigate_Type::RELOAD_IGNORING_CACHE; 185 case NavigationControllerImpl::RELOAD_ORIGINAL_REQUEST_URL: 186 return ViewMsg_Navigate_Type::RELOAD_ORIGINAL_REQUEST_URL; 187 case NavigationControllerImpl::NO_RELOAD: 188 break; // Fall through to rest of function. 189 } 190 191 // |RenderViewImpl::PopulateStateFromPendingNavigationParams| differentiates 192 // between |RESTORE_WITH_POST| and |RESTORE|. 193 if (entry.restore_type() == 194 NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY) { 195 if (entry.GetHasPostData()) 196 return ViewMsg_Navigate_Type::RESTORE_WITH_POST; 197 return ViewMsg_Navigate_Type::RESTORE; 198 } 199 200 return ViewMsg_Navigate_Type::NORMAL; 201} 202 203void MakeNavigateParams(const NavigationEntryImpl& entry, 204 const NavigationControllerImpl& controller, 205 WebContentsDelegate* delegate, 206 NavigationController::ReloadType reload_type, 207 ViewMsg_Navigate_Params* params) { 208 params->page_id = entry.GetPageID(); 209 params->should_clear_history_list = entry.should_clear_history_list(); 210 if (entry.should_clear_history_list()) { 211 // Set the history list related parameters to the same values a 212 // NavigationController would return before its first navigation. This will 213 // fully clear the RenderView's view of the session history. 214 params->pending_history_list_offset = -1; 215 params->current_history_list_offset = -1; 216 params->current_history_list_length = 0; 217 } else { 218 params->pending_history_list_offset = controller.GetIndexOfEntry(&entry); 219 params->current_history_list_offset = 220 controller.GetLastCommittedEntryIndex(); 221 params->current_history_list_length = controller.GetEntryCount(); 222 } 223 if (!entry.GetBaseURLForDataURL().is_empty()) { 224 params->base_url_for_data_url = entry.GetBaseURLForDataURL(); 225 params->history_url_for_data_url = entry.GetVirtualURL(); 226 } 227 params->referrer = entry.GetReferrer(); 228 params->transition = entry.GetTransitionType(); 229 params->page_state = entry.GetPageState(); 230 params->navigation_type = 231 GetNavigationType(controller.GetBrowserContext(), entry, reload_type); 232 params->request_time = base::Time::Now(); 233 params->extra_headers = entry.extra_headers(); 234 params->transferred_request_child_id = 235 entry.transferred_global_request_id().child_id; 236 params->transferred_request_request_id = 237 entry.transferred_global_request_id().request_id; 238 params->is_overriding_user_agent = entry.GetIsOverridingUserAgent(); 239 // Avoid downloading when in view-source mode. 240 params->allow_download = !entry.IsViewSourceMode(); 241 params->is_post = entry.GetHasPostData(); 242 if(entry.GetBrowserInitiatedPostData()) { 243 params->browser_initiated_post_data.assign( 244 entry.GetBrowserInitiatedPostData()->front(), 245 entry.GetBrowserInitiatedPostData()->front() + 246 entry.GetBrowserInitiatedPostData()->size()); 247 248 } 249 250 if (reload_type == NavigationControllerImpl::RELOAD_ORIGINAL_REQUEST_URL && 251 entry.GetOriginalRequestURL().is_valid() && !entry.GetHasPostData()) { 252 // We may have been redirected when navigating to the current URL. 253 // Use the URL the user originally intended to visit, if it's valid and if a 254 // POST wasn't involved; the latter case avoids issues with sending data to 255 // the wrong page. 256 params->url = entry.GetOriginalRequestURL(); 257 } else { 258 params->url = entry.GetURL(); 259 } 260 261 params->can_load_local_resources = entry.GetCanLoadLocalResources(); 262 params->frame_to_navigate = entry.GetFrameToNavigate(); 263 264 if (delegate) 265 delegate->AddNavigationHeaders(params->url, ¶ms->extra_headers); 266} 267 268} // namespace 269 270WebContents* WebContents::Create(const WebContents::CreateParams& params) { 271 return WebContentsImpl::CreateWithOpener( 272 params, static_cast<WebContentsImpl*>(params.opener)); 273} 274 275WebContents* WebContents::CreateWithSessionStorage( 276 const WebContents::CreateParams& params, 277 const SessionStorageNamespaceMap& session_storage_namespace_map) { 278 WebContentsImpl* new_contents = new WebContentsImpl( 279 params.browser_context, NULL); 280 281 for (SessionStorageNamespaceMap::const_iterator it = 282 session_storage_namespace_map.begin(); 283 it != session_storage_namespace_map.end(); 284 ++it) { 285 new_contents->GetController() 286 .SetSessionStorageNamespace(it->first, it->second.get()); 287 } 288 289 new_contents->Init(params); 290 return new_contents; 291} 292 293void WebContents::AddCreatedCallback(const CreatedCallback& callback) { 294 g_created_callbacks.Get().push_back(callback); 295} 296 297void WebContents::RemoveCreatedCallback(const CreatedCallback& callback) { 298 for (size_t i = 0; i < g_created_callbacks.Get().size(); ++i) { 299 if (g_created_callbacks.Get().at(i).Equals(callback)) { 300 g_created_callbacks.Get().erase(g_created_callbacks.Get().begin() + i); 301 return; 302 } 303 } 304} 305 306WebContents* WebContents::FromRenderViewHost(const RenderViewHost* rvh) { 307 return rvh->GetDelegate()->GetAsWebContents(); 308} 309 310// WebContentsImpl::DestructionObserver ---------------------------------------- 311 312class WebContentsImpl::DestructionObserver : public WebContentsObserver { 313 public: 314 DestructionObserver(WebContentsImpl* owner, WebContents* watched_contents) 315 : WebContentsObserver(watched_contents), 316 owner_(owner) { 317 } 318 319 // WebContentsObserver: 320 virtual void WebContentsDestroyed(WebContents* web_contents) OVERRIDE { 321 owner_->OnWebContentsDestroyed(static_cast<WebContentsImpl*>(web_contents)); 322 } 323 324 private: 325 WebContentsImpl* owner_; 326 327 DISALLOW_COPY_AND_ASSIGN(DestructionObserver); 328}; 329 330// WebContentsImpl ------------------------------------------------------------- 331 332WebContentsImpl::WebContentsImpl( 333 BrowserContext* browser_context, 334 WebContentsImpl* opener) 335 : delegate_(NULL), 336 controller_(this, browser_context), 337 render_view_host_delegate_view_(NULL), 338 opener_(opener), 339#if defined(OS_WIN) && defined(USE_AURA) 340 accessible_parent_(NULL), 341#endif 342 render_manager_(this, this, this), 343 is_loading_(false), 344 crashed_status_(base::TERMINATION_STATUS_STILL_RUNNING), 345 crashed_error_code_(0), 346 waiting_for_response_(false), 347 load_state_(net::LOAD_STATE_IDLE, string16()), 348 upload_size_(0), 349 upload_position_(0), 350 displayed_insecure_content_(false), 351 capturer_count_(0), 352 should_normally_be_visible_(true), 353 is_being_destroyed_(false), 354 notify_disconnection_(false), 355 dialog_manager_(NULL), 356 is_showing_before_unload_dialog_(false), 357 closed_by_user_gesture_(false), 358 minimum_zoom_percent_(static_cast<int>(kMinimumZoomFactor * 100)), 359 maximum_zoom_percent_(static_cast<int>(kMaximumZoomFactor * 100)), 360 temporary_zoom_settings_(false), 361 color_chooser_identifier_(0), 362 message_source_(NULL), 363 fullscreen_widget_routing_id_(MSG_ROUTING_NONE) { 364 for (size_t i = 0; i < g_created_callbacks.Get().size(); i++) 365 g_created_callbacks.Get().at(i).Run(this); 366} 367 368WebContentsImpl::~WebContentsImpl() { 369 is_being_destroyed_ = true; 370 371 ClearAllPowerSaveBlockers(); 372 373 for (std::set<RenderWidgetHostImpl*>::iterator iter = 374 created_widgets_.begin(); iter != created_widgets_.end(); ++iter) { 375 (*iter)->DetachDelegate(); 376 } 377 created_widgets_.clear(); 378 379 // Clear out any JavaScript state. 380 if (dialog_manager_) 381 dialog_manager_->WebContentsDestroyed(this); 382 383 if (color_chooser_) 384 color_chooser_->End(); 385 386 NotifyDisconnected(); 387 388 // Notify any observer that have a reference on this WebContents. 389 NotificationService::current()->Notify( 390 NOTIFICATION_WEB_CONTENTS_DESTROYED, 391 Source<WebContents>(this), 392 NotificationService::NoDetails()); 393 394 // TODO(brettw) this should be moved to the view. 395#if defined(OS_WIN) && !defined(USE_AURA) 396 // If we still have a window handle, destroy it. GetNativeView can return 397 // NULL if this contents was part of a window that closed. 398 if (view_->GetNativeView()) { 399 RenderViewHost* host = GetRenderViewHost(); 400 if (host && host->GetView()) 401 RenderWidgetHostViewPort::FromRWHV(host->GetView())->WillWmDestroy(); 402 } 403#endif 404 405 FOR_EACH_OBSERVER(WebContentsObserver, 406 observers_, 407 WebContentsImplDestroyed()); 408 409 SetDelegate(NULL); 410 411 STLDeleteContainerPairSecondPointers(destruction_observers_.begin(), 412 destruction_observers_.end()); 413} 414 415WebContentsImpl* WebContentsImpl::CreateWithOpener( 416 const WebContents::CreateParams& params, 417 WebContentsImpl* opener) { 418 TRACE_EVENT0("browser", "WebContentsImpl::CreateWithOpener"); 419 WebContentsImpl* new_contents = new WebContentsImpl( 420 params.browser_context, opener); 421 422 new_contents->Init(params); 423 return new_contents; 424} 425 426// static 427BrowserPluginGuest* WebContentsImpl::CreateGuest( 428 BrowserContext* browser_context, 429 SiteInstance* site_instance, 430 int guest_instance_id, 431 scoped_ptr<base::DictionaryValue> extra_params) { 432 WebContentsImpl* new_contents = new WebContentsImpl(browser_context, NULL); 433 434 // This makes |new_contents| act as a guest. 435 // For more info, see comment above class BrowserPluginGuest. 436 BrowserPluginGuest::Create( 437 guest_instance_id, new_contents, extra_params.Pass()); 438 439 WebContents::CreateParams create_params(browser_context, site_instance); 440 new_contents->Init(create_params); 441 442 // We are instantiating a WebContents for browser plugin. Set its subframe bit 443 // to true. 444 static_cast<RenderViewHostImpl*>( 445 new_contents->GetRenderViewHost())->set_is_subframe(true); 446 447 return new_contents->browser_plugin_guest_.get(); 448} 449 450WebPreferences WebContentsImpl::GetWebkitPrefs(RenderViewHost* rvh, 451 const GURL& url) { 452 TRACE_EVENT0("browser", "WebContentsImpl::GetWebkitPrefs"); 453 WebPreferences prefs; 454 455 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); 456 457 prefs.javascript_enabled = 458 !command_line.HasSwitch(switches::kDisableJavaScript); 459 prefs.web_security_enabled = 460 !command_line.HasSwitch(switches::kDisableWebSecurity); 461 prefs.plugins_enabled = 462 !command_line.HasSwitch(switches::kDisablePlugins); 463 prefs.java_enabled = 464 !command_line.HasSwitch(switches::kDisableJava); 465 466 prefs.remote_fonts_enabled = 467 !command_line.HasSwitch(switches::kDisableRemoteFonts); 468 prefs.xss_auditor_enabled = 469 !command_line.HasSwitch(switches::kDisableXSSAuditor); 470 prefs.application_cache_enabled = 471 !command_line.HasSwitch(switches::kDisableApplicationCache); 472 473 prefs.local_storage_enabled = 474 !command_line.HasSwitch(switches::kDisableLocalStorage); 475 prefs.databases_enabled = 476 !command_line.HasSwitch(switches::kDisableDatabases); 477 prefs.webaudio_enabled = 478 !command_line.HasSwitch(switches::kDisableWebAudio); 479 480 prefs.experimental_webgl_enabled = 481 GpuProcessHost::gpu_enabled() && 482 !command_line.HasSwitch(switches::kDisable3DAPIs) && 483 !command_line.HasSwitch(switches::kDisableExperimentalWebGL); 484 485 prefs.flash_3d_enabled = 486 GpuProcessHost::gpu_enabled() && 487 !command_line.HasSwitch(switches::kDisableFlash3d); 488 prefs.flash_stage3d_enabled = 489 GpuProcessHost::gpu_enabled() && 490 !command_line.HasSwitch(switches::kDisableFlashStage3d); 491 prefs.flash_stage3d_baseline_enabled = 492 GpuProcessHost::gpu_enabled() && 493 !command_line.HasSwitch(switches::kDisableFlashStage3d); 494 495 prefs.gl_multisampling_enabled = 496 !command_line.HasSwitch(switches::kDisableGLMultisampling); 497 prefs.privileged_webgl_extensions_enabled = 498 command_line.HasSwitch(switches::kEnablePrivilegedWebGLExtensions); 499 prefs.site_specific_quirks_enabled = 500 !command_line.HasSwitch(switches::kDisableSiteSpecificQuirks); 501 prefs.allow_file_access_from_file_urls = 502 command_line.HasSwitch(switches::kAllowFileAccessFromFiles); 503 504 prefs.accelerated_compositing_for_overflow_scroll_enabled = false; 505 if (command_line.HasSwitch(switches::kEnableAcceleratedOverflowScroll)) 506 prefs.accelerated_compositing_for_overflow_scroll_enabled = true; 507 if (command_line.HasSwitch(switches::kDisableAcceleratedOverflowScroll)) 508 prefs.accelerated_compositing_for_overflow_scroll_enabled = false; 509 510 prefs.accelerated_compositing_for_scrollable_frames_enabled = 511 command_line.HasSwitch(switches::kEnableAcceleratedScrollableFrames); 512 prefs.composited_scrolling_for_frames_enabled = 513 command_line.HasSwitch(switches::kEnableCompositedScrollingForFrames); 514 prefs.show_paint_rects = 515 command_line.HasSwitch(switches::kShowPaintRects); 516 prefs.accelerated_compositing_enabled = 517 GpuProcessHost::gpu_enabled() && 518 !command_line.HasSwitch(switches::kDisableAcceleratedCompositing); 519 prefs.force_compositing_mode = 520 content::IsForceCompositingModeEnabled() && 521 !command_line.HasSwitch(switches::kDisableForceCompositingMode); 522 prefs.accelerated_2d_canvas_enabled = 523 GpuProcessHost::gpu_enabled() && 524 !command_line.HasSwitch(switches::kDisableAccelerated2dCanvas); 525 prefs.antialiased_2d_canvas_disabled = 526 command_line.HasSwitch(switches::kDisable2dCanvasAntialiasing); 527 prefs.accelerated_filters_enabled = 528 GpuProcessHost::gpu_enabled() && 529 command_line.HasSwitch(switches::kEnableAcceleratedFilters); 530 prefs.accelerated_compositing_for_3d_transforms_enabled = 531 prefs.accelerated_compositing_for_animation_enabled = 532 !command_line.HasSwitch(switches::kDisableAcceleratedLayers); 533 prefs.accelerated_compositing_for_plugins_enabled = 534 !command_line.HasSwitch(switches::kDisableAcceleratedPlugins); 535 prefs.accelerated_compositing_for_video_enabled = 536 !command_line.HasSwitch(switches::kDisableAcceleratedVideo); 537 prefs.fullscreen_enabled = 538 !command_line.HasSwitch(switches::kDisableFullScreen); 539 prefs.css_sticky_position_enabled = 540 command_line.HasSwitch(switches::kEnableExperimentalWebPlatformFeatures); 541 prefs.css_shaders_enabled = 542 command_line.HasSwitch(switches::kEnableCssShaders); 543 prefs.lazy_layout_enabled = 544 command_line.HasSwitch(switches::kEnableExperimentalWebPlatformFeatures); 545 prefs.region_based_columns_enabled = 546 command_line.HasSwitch(switches::kEnableRegionBasedColumns); 547 prefs.threaded_html_parser = 548 !command_line.HasSwitch(switches::kDisableThreadedHTMLParser); 549 prefs.experimental_websocket_enabled = 550 command_line.HasSwitch(switches::kEnableExperimentalWebSocket); 551 if (command_line.HasSwitch(cc::switches::kEnablePinchVirtualViewport)) { 552 prefs.pinch_virtual_viewport_enabled = true; 553 prefs.pinch_overlay_scrollbar_thickness = 10; 554 } 555 556#if defined(OS_ANDROID) 557 prefs.user_gesture_required_for_media_playback = !command_line.HasSwitch( 558 switches::kDisableGestureRequirementForMediaPlayback); 559#endif 560 561 prefs.touch_enabled = ui::AreTouchEventsEnabled(); 562 prefs.device_supports_touch = prefs.touch_enabled && 563 ui::IsTouchDevicePresent(); 564#if defined(OS_ANDROID) 565 prefs.device_supports_mouse = false; 566#endif 567 568 prefs.touch_adjustment_enabled = 569 !command_line.HasSwitch(switches::kDisableTouchAdjustment); 570 571#if defined(OS_MACOSX) || defined(OS_CHROMEOS) 572 bool default_enable_scroll_animator = true; 573#else 574 bool default_enable_scroll_animator = false; 575#endif 576 prefs.enable_scroll_animator = default_enable_scroll_animator; 577 if (command_line.HasSwitch(switches::kEnableSmoothScrolling)) 578 prefs.enable_scroll_animator = true; 579 if (command_line.HasSwitch(switches::kDisableSmoothScrolling)) 580 prefs.enable_scroll_animator = false; 581 582 prefs.visual_word_movement_enabled = 583 command_line.HasSwitch(switches::kEnableVisualWordMovement); 584 585 // Certain GPU features might have been blacklisted. 586 GpuDataManagerImpl::GetInstance()->UpdateRendererWebPrefs(&prefs); 587 588 if (ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings( 589 rvh->GetProcess()->GetID())) { 590 prefs.loads_images_automatically = true; 591 prefs.javascript_enabled = true; 592 } 593 594 prefs.is_online = !net::NetworkChangeNotifier::IsOffline(); 595 596#if !defined(USE_AURA) 597 // Force accelerated compositing and 2d canvas off for chrome: and about: 598 // pages (unless it's specifically allowed). 599 if ((url.SchemeIs(chrome::kChromeUIScheme) || 600 (url.SchemeIs(chrome::kAboutScheme) && 601 url.spec() != kAboutBlankURL)) && 602 !command_line.HasSwitch(switches::kAllowWebUICompositing)) { 603 prefs.accelerated_compositing_enabled = false; 604 prefs.accelerated_2d_canvas_enabled = false; 605 } 606#endif 607 608 prefs.fixed_position_creates_stacking_context = !command_line.HasSwitch( 609 switches::kDisableFixedPositionCreatesStackingContext); 610 611#if defined(OS_CHROMEOS) 612 prefs.gesture_tap_highlight_enabled = !command_line.HasSwitch( 613 switches::kDisableGestureTapHighlight); 614#else 615 prefs.gesture_tap_highlight_enabled = command_line.HasSwitch( 616 switches::kEnableGestureTapHighlight); 617#endif 618 619 prefs.number_of_cpu_cores = base::SysInfo::NumberOfProcessors(); 620 621 prefs.viewport_enabled = command_line.HasSwitch(switches::kEnableViewport); 622 623 prefs.deferred_image_decoding_enabled = 624 command_line.HasSwitch(switches::kEnableDeferredImageDecoding) || 625 cc::switches::IsImplSidePaintingEnabled(); 626 627 prefs.spatial_navigation_enabled = command_line.HasSwitch( 628 switches::kEnableSpatialNavigation); 629 630 GetContentClient()->browser()->OverrideWebkitPrefs(rvh, url, &prefs); 631 632 // Disable compositing in guests until we have compositing path implemented 633 // for guests. 634 bool guest_compositing_enabled = !command_line.HasSwitch( 635 switches::kDisableBrowserPluginCompositing); 636 if (rvh->GetProcess()->IsGuest() && !guest_compositing_enabled) { 637 prefs.force_compositing_mode = false; 638 prefs.accelerated_compositing_enabled = false; 639 } 640 641 return prefs; 642} 643 644RenderViewHostManager* WebContentsImpl::GetRenderManagerForTesting() { 645 return &render_manager_; 646} 647 648bool WebContentsImpl::OnMessageReceived(RenderViewHost* render_view_host, 649 const IPC::Message& message) { 650 if (GetWebUI() && 651 static_cast<WebUIImpl*>(GetWebUI())->OnMessageReceived(message)) { 652 return true; 653 } 654 655 ObserverListBase<WebContentsObserver>::Iterator it(observers_); 656 WebContentsObserver* observer; 657 while ((observer = it.GetNext()) != NULL) 658 if (observer->OnMessageReceived(message)) 659 return true; 660 661 // Message handlers should be aware of which RenderViewHost sent the 662 // message, which is temporarily stored in message_source_. 663 message_source_ = render_view_host; 664 bool handled = true; 665 bool message_is_ok = true; 666 IPC_BEGIN_MESSAGE_MAP_EX(WebContentsImpl, message, message_is_ok) 667 IPC_MESSAGE_HANDLER(ViewHostMsg_DidLoadResourceFromMemoryCache, 668 OnDidLoadResourceFromMemoryCache) 669 IPC_MESSAGE_HANDLER(ViewHostMsg_DidDisplayInsecureContent, 670 OnDidDisplayInsecureContent) 671 IPC_MESSAGE_HANDLER(ViewHostMsg_DidRunInsecureContent, 672 OnDidRunInsecureContent) 673 IPC_MESSAGE_HANDLER(ViewHostMsg_DocumentLoadedInFrame, 674 OnDocumentLoadedInFrame) 675 IPC_MESSAGE_HANDLER(ViewHostMsg_DidFinishLoad, OnDidFinishLoad) 676 IPC_MESSAGE_HANDLER(ViewHostMsg_DidFailLoadWithError, 677 OnDidFailLoadWithError) 678 IPC_MESSAGE_HANDLER(ViewHostMsg_GoToEntryAtOffset, OnGoToEntryAtOffset) 679 IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateZoomLimits, OnUpdateZoomLimits) 680 IPC_MESSAGE_HANDLER(ViewHostMsg_EnumerateDirectory, OnEnumerateDirectory) 681 IPC_MESSAGE_HANDLER(ViewHostMsg_JSOutOfMemory, OnJSOutOfMemory) 682 IPC_MESSAGE_HANDLER(ViewHostMsg_RegisterProtocolHandler, 683 OnRegisterProtocolHandler) 684 IPC_MESSAGE_HANDLER(ViewHostMsg_Find_Reply, OnFindReply) 685 IPC_MESSAGE_HANDLER(ViewHostMsg_DidProgrammaticallyScroll, 686 OnDidProgrammaticallyScroll) 687 IPC_MESSAGE_HANDLER(ViewHostMsg_CrashedPlugin, OnCrashedPlugin) 688 IPC_MESSAGE_HANDLER(ViewHostMsg_AppCacheAccessed, OnAppCacheAccessed) 689 IPC_MESSAGE_HANDLER(ViewHostMsg_OpenColorChooser, OnOpenColorChooser) 690 IPC_MESSAGE_HANDLER(ViewHostMsg_EndColorChooser, OnEndColorChooser) 691 IPC_MESSAGE_HANDLER(ViewHostMsg_SetSelectedColorInColorChooser, 692 OnSetSelectedColorInColorChooser) 693 IPC_MESSAGE_HANDLER(ViewHostMsg_PepperPluginHung, OnPepperPluginHung) 694 IPC_MESSAGE_HANDLER(ViewHostMsg_WebUISend, OnWebUISend) 695 IPC_MESSAGE_HANDLER(ViewHostMsg_RequestPpapiBrokerPermission, 696 OnRequestPpapiBrokerPermission) 697 IPC_MESSAGE_HANDLER_GENERIC(BrowserPluginHostMsg_AllocateInstanceID, 698 OnBrowserPluginMessage(message)) 699 IPC_MESSAGE_HANDLER_GENERIC(BrowserPluginHostMsg_Attach, 700 OnBrowserPluginMessage(message)) 701 IPC_MESSAGE_HANDLER(ImageHostMsg_DidDownloadImage, OnDidDownloadImage) 702 IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateFaviconURL, OnUpdateFaviconURL) 703#if defined(OS_ANDROID) 704 IPC_MESSAGE_HANDLER(ViewHostMsg_FindMatchRects_Reply, 705 OnFindMatchRectsReply) 706 IPC_MESSAGE_HANDLER(ViewHostMsg_OpenDateTimeDialog, 707 OnOpenDateTimeDialog) 708#endif 709 IPC_MESSAGE_HANDLER(ViewHostMsg_FrameAttached, OnFrameAttached) 710 IPC_MESSAGE_HANDLER(ViewHostMsg_FrameDetached, OnFrameDetached) 711 IPC_MESSAGE_HANDLER(ViewHostMsg_MediaNotification, OnMediaNotification) 712 IPC_MESSAGE_UNHANDLED(handled = false) 713 IPC_END_MESSAGE_MAP_EX() 714 message_source_ = NULL; 715 716 if (!message_is_ok) { 717 RecordAction(UserMetricsAction("BadMessageTerminate_RVD")); 718 GetRenderProcessHost()->ReceivedBadMessage(); 719 } 720 721 return handled; 722} 723 724void WebContentsImpl::RunFileChooser( 725 RenderViewHost* render_view_host, 726 const FileChooserParams& params) { 727 if (delegate_) 728 delegate_->RunFileChooser(this, params); 729} 730 731NavigationControllerImpl& WebContentsImpl::GetController() { 732 return controller_; 733} 734 735const NavigationControllerImpl& WebContentsImpl::GetController() const { 736 return controller_; 737} 738 739BrowserContext* WebContentsImpl::GetBrowserContext() const { 740 return controller_.GetBrowserContext(); 741} 742 743const GURL& WebContentsImpl::GetURL() const { 744 // We may not have a navigation entry yet. 745 NavigationEntry* entry = controller_.GetVisibleEntry(); 746 return entry ? entry->GetVirtualURL() : GURL::EmptyGURL(); 747} 748 749const GURL& WebContentsImpl::GetVisibleURL() const { 750 // We may not have a navigation entry yet. 751 NavigationEntry* entry = controller_.GetVisibleEntry(); 752 return entry ? entry->GetVirtualURL() : GURL::EmptyGURL(); 753} 754 755const GURL& WebContentsImpl::GetLastCommittedURL() const { 756 // We may not have a navigation entry yet. 757 NavigationEntry* entry = controller_.GetLastCommittedEntry(); 758 return entry ? entry->GetVirtualURL() : GURL::EmptyGURL(); 759} 760 761WebContentsDelegate* WebContentsImpl::GetDelegate() { 762 return delegate_; 763} 764 765void WebContentsImpl::SetDelegate(WebContentsDelegate* delegate) { 766 // TODO(cbentzel): remove this debugging code? 767 if (delegate == delegate_) 768 return; 769 if (delegate_) 770 delegate_->Detach(this); 771 delegate_ = delegate; 772 if (delegate_) { 773 delegate_->Attach(this); 774 // Ensure the visible RVH reflects the new delegate's preferences. 775 if (view_) 776 view_->SetOverscrollControllerEnabled(delegate->CanOverscrollContent()); 777 } 778} 779 780RenderProcessHost* WebContentsImpl::GetRenderProcessHost() const { 781 RenderViewHostImpl* host = render_manager_.current_host(); 782 return host ? host->GetProcess() : NULL; 783} 784 785RenderViewHost* WebContentsImpl::GetRenderViewHost() const { 786 return render_manager_.current_host(); 787} 788 789void WebContentsImpl::GetRenderViewHostAtPosition( 790 int x, 791 int y, 792 const base::Callback<void(RenderViewHost*, int, int)>& callback) { 793 BrowserPluginEmbedder* embedder = GetBrowserPluginEmbedder(); 794 if (embedder) 795 embedder->GetRenderViewHostAtPosition(x, y, callback); 796 else 797 callback.Run(GetRenderViewHost(), x, y); 798} 799 800WebContents* WebContentsImpl::GetEmbedderWebContents() const { 801 BrowserPluginGuest* guest = GetBrowserPluginGuest(); 802 if (guest) 803 return guest->embedder_web_contents(); 804 return NULL; 805} 806 807int WebContentsImpl::GetEmbeddedInstanceID() const { 808 BrowserPluginGuest* guest = GetBrowserPluginGuest(); 809 if (guest) 810 return guest->instance_id(); 811 return 0; 812} 813 814int WebContentsImpl::GetRoutingID() const { 815 if (!GetRenderViewHost()) 816 return MSG_ROUTING_NONE; 817 818 return GetRenderViewHost()->GetRoutingID(); 819} 820 821int WebContentsImpl::GetFullscreenWidgetRoutingID() const { 822 return fullscreen_widget_routing_id_; 823} 824 825RenderWidgetHostView* WebContentsImpl::GetRenderWidgetHostView() const { 826 return render_manager_.GetRenderWidgetHostView(); 827} 828 829RenderWidgetHostViewPort* WebContentsImpl::GetRenderWidgetHostViewPort() const { 830 BrowserPluginGuest* guest = GetBrowserPluginGuest(); 831 if (guest && guest->embedder_web_contents()) { 832 return guest->embedder_web_contents()->GetRenderWidgetHostViewPort(); 833 } 834 return RenderWidgetHostViewPort::FromRWHV(GetRenderWidgetHostView()); 835} 836 837WebContentsView* WebContentsImpl::GetView() const { 838 return view_.get(); 839} 840 841WebUI* WebContentsImpl::CreateWebUI(const GURL& url) { 842 WebUIImpl* web_ui = new WebUIImpl(this); 843 WebUIController* controller = WebUIControllerFactoryRegistry::GetInstance()-> 844 CreateWebUIControllerForURL(web_ui, url); 845 if (controller) { 846 web_ui->AddMessageHandler(new GenericHandler()); 847 web_ui->SetController(controller); 848 return web_ui; 849 } 850 851 delete web_ui; 852 return NULL; 853} 854 855WebUI* WebContentsImpl::GetWebUI() const { 856 return render_manager_.web_ui() ? render_manager_.web_ui() 857 : render_manager_.pending_web_ui(); 858} 859 860WebUI* WebContentsImpl::GetCommittedWebUI() const { 861 return render_manager_.web_ui(); 862} 863 864void WebContentsImpl::SetUserAgentOverride(const std::string& override) { 865 if (GetUserAgentOverride() == override) 866 return; 867 868 renderer_preferences_.user_agent_override = override; 869 870 // Send the new override string to the renderer. 871 RenderViewHost* host = GetRenderViewHost(); 872 if (host) 873 host->SyncRendererPrefs(); 874 875 // Reload the page if a load is currently in progress to avoid having 876 // different parts of the page loaded using different user agents. 877 NavigationEntry* entry = controller_.GetActiveEntry(); 878 if (is_loading_ && entry != NULL && entry->GetIsOverridingUserAgent()) 879 controller_.ReloadIgnoringCache(true); 880 881 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 882 UserAgentOverrideSet(override)); 883} 884 885const std::string& WebContentsImpl::GetUserAgentOverride() const { 886 return renderer_preferences_.user_agent_override; 887} 888 889#if defined(OS_WIN) && defined(USE_AURA) 890void WebContentsImpl::SetParentNativeViewAccessible( 891gfx::NativeViewAccessible accessible_parent) { 892 accessible_parent_ = accessible_parent; 893 if (GetRenderViewHost()) 894 GetRenderViewHostImpl()->SetParentNativeViewAccessible(accessible_parent); 895} 896#endif 897 898const string16& WebContentsImpl::GetTitle() const { 899 // Transient entries take precedence. They are used for interstitial pages 900 // that are shown on top of existing pages. 901 NavigationEntry* entry = controller_.GetTransientEntry(); 902 std::string accept_languages = 903 GetContentClient()->browser()->GetAcceptLangs( 904 GetBrowserContext()); 905 if (entry) { 906 return entry->GetTitleForDisplay(accept_languages); 907 } 908 WebUI* our_web_ui = render_manager_.pending_web_ui() ? 909 render_manager_.pending_web_ui() : render_manager_.web_ui(); 910 if (our_web_ui) { 911 // Don't override the title in view source mode. 912 entry = controller_.GetVisibleEntry(); 913 if (!(entry && entry->IsViewSourceMode())) { 914 // Give the Web UI the chance to override our title. 915 const string16& title = our_web_ui->GetOverriddenTitle(); 916 if (!title.empty()) 917 return title; 918 } 919 } 920 921 // We use the title for the last committed entry rather than a pending 922 // navigation entry. For example, when the user types in a URL, we want to 923 // keep the old page's title until the new load has committed and we get a new 924 // title. 925 entry = controller_.GetLastCommittedEntry(); 926 927 // We make an exception for initial navigations, because we can have a 928 // committed entry for an initial navigation when doing a history navigation 929 // in a new tab, such as Ctrl+Back. 930 if (entry && controller_.IsInitialNavigation()) 931 entry = controller_.GetVisibleEntry(); 932 933 if (entry) { 934 return entry->GetTitleForDisplay(accept_languages); 935 } 936 937 // |page_title_when_no_navigation_entry_| is finally used 938 // if no title cannot be retrieved. 939 return page_title_when_no_navigation_entry_; 940} 941 942int32 WebContentsImpl::GetMaxPageID() { 943 return GetMaxPageIDForSiteInstance(GetSiteInstance()); 944} 945 946int32 WebContentsImpl::GetMaxPageIDForSiteInstance( 947 SiteInstance* site_instance) { 948 if (max_page_ids_.find(site_instance->GetId()) == max_page_ids_.end()) 949 max_page_ids_[site_instance->GetId()] = -1; 950 951 return max_page_ids_[site_instance->GetId()]; 952} 953 954void WebContentsImpl::UpdateMaxPageID(int32 page_id) { 955 UpdateMaxPageIDForSiteInstance(GetSiteInstance(), page_id); 956} 957 958void WebContentsImpl::UpdateMaxPageIDForSiteInstance( 959 SiteInstance* site_instance, int32 page_id) { 960 if (GetMaxPageIDForSiteInstance(site_instance) < page_id) 961 max_page_ids_[site_instance->GetId()] = page_id; 962} 963 964void WebContentsImpl::CopyMaxPageIDsFrom(WebContentsImpl* web_contents) { 965 max_page_ids_ = web_contents->max_page_ids_; 966} 967 968SiteInstance* WebContentsImpl::GetSiteInstance() const { 969 return render_manager_.current_host()->GetSiteInstance(); 970} 971 972SiteInstance* WebContentsImpl::GetPendingSiteInstance() const { 973 RenderViewHost* dest_rvh = render_manager_.pending_render_view_host() ? 974 render_manager_.pending_render_view_host() : 975 render_manager_.current_host(); 976 return dest_rvh->GetSiteInstance(); 977} 978 979bool WebContentsImpl::IsLoading() const { 980 return is_loading_; 981} 982 983bool WebContentsImpl::IsWaitingForResponse() const { 984 return waiting_for_response_; 985} 986 987const net::LoadStateWithParam& WebContentsImpl::GetLoadState() const { 988 return load_state_; 989} 990 991const string16& WebContentsImpl::GetLoadStateHost() const { 992 return load_state_host_; 993} 994 995uint64 WebContentsImpl::GetUploadSize() const { 996 return upload_size_; 997} 998 999uint64 WebContentsImpl::GetUploadPosition() const { 1000 return upload_position_; 1001} 1002 1003std::set<GURL> WebContentsImpl::GetSitesInTab() const { 1004 BrowserContext* browser_context = GetBrowserContext(); 1005 std::set<GURL> sites; 1006 if (!frame_tree_root_.get()) 1007 return sites; 1008 1009 // Iterates over the FrameTreeNodes to find each unique site URL that is 1010 // currently committed. 1011 FrameTreeNode* node = NULL; 1012 std::queue<FrameTreeNode*> queue; 1013 queue.push(frame_tree_root_.get()); 1014 1015 while (!queue.empty()) { 1016 node = queue.front(); 1017 queue.pop(); 1018 sites.insert(SiteInstance::GetSiteForURL(browser_context, 1019 node->current_url())); 1020 1021 for (size_t i = 0; i < node->child_count(); ++i) 1022 queue.push(node->child_at(i)); 1023 } 1024 1025 return sites; 1026} 1027 1028const std::string& WebContentsImpl::GetEncoding() const { 1029 return encoding_; 1030} 1031 1032bool WebContentsImpl::DisplayedInsecureContent() const { 1033 return displayed_insecure_content_; 1034} 1035 1036void WebContentsImpl::IncrementCapturerCount() { 1037 DCHECK(!is_being_destroyed_); 1038 ++capturer_count_; 1039 DVLOG(1) << "There are now " << capturer_count_ 1040 << " capturing(s) of WebContentsImpl@" << this; 1041} 1042 1043void WebContentsImpl::DecrementCapturerCount() { 1044 --capturer_count_; 1045 DVLOG(1) << "There are now " << capturer_count_ 1046 << " capturing(s) of WebContentsImpl@" << this; 1047 DCHECK_LE(0, capturer_count_); 1048 1049 if (is_being_destroyed_) 1050 return; 1051 1052 // While capturer_count_ was greater than zero, the WasHidden() calls to RWHV 1053 // were being prevented. If there are no more capturers, make the call now. 1054 if (capturer_count_ == 0 && !should_normally_be_visible_) { 1055 DVLOG(1) << "Executing delayed WasHidden()."; 1056 WasHidden(); 1057 } 1058} 1059 1060int WebContentsImpl::GetCapturerCount() const { 1061 return capturer_count_; 1062} 1063 1064bool WebContentsImpl::IsCrashed() const { 1065 return (crashed_status_ == base::TERMINATION_STATUS_PROCESS_CRASHED || 1066 crashed_status_ == base::TERMINATION_STATUS_ABNORMAL_TERMINATION || 1067 crashed_status_ == base::TERMINATION_STATUS_PROCESS_WAS_KILLED); 1068} 1069 1070void WebContentsImpl::SetIsCrashed(base::TerminationStatus status, 1071 int error_code) { 1072 if (status == crashed_status_) 1073 return; 1074 1075 crashed_status_ = status; 1076 crashed_error_code_ = error_code; 1077 NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB); 1078} 1079 1080base::TerminationStatus WebContentsImpl::GetCrashedStatus() const { 1081 return crashed_status_; 1082} 1083 1084bool WebContentsImpl::IsBeingDestroyed() const { 1085 return is_being_destroyed_; 1086} 1087 1088void WebContentsImpl::NotifyNavigationStateChanged(unsigned changed_flags) { 1089 if (delegate_) 1090 delegate_->NavigationStateChanged(this, changed_flags); 1091} 1092 1093base::TimeTicks WebContentsImpl::GetLastSelectedTime() const { 1094 return last_selected_time_; 1095} 1096 1097void WebContentsImpl::WasShown() { 1098 controller_.SetActive(true); 1099 RenderWidgetHostViewPort* rwhv = 1100 RenderWidgetHostViewPort::FromRWHV(GetRenderWidgetHostView()); 1101 if (rwhv) { 1102 rwhv->WasShown(); 1103#if defined(OS_MACOSX) 1104 rwhv->SetActive(true); 1105#endif 1106 } 1107 1108 last_selected_time_ = base::TimeTicks::Now(); 1109 1110 FOR_EACH_OBSERVER(WebContentsObserver, observers_, WasShown()); 1111 1112 // The resize rect might have changed while this was inactive -- send the new 1113 // one to make sure it's up to date. 1114 RenderViewHostImpl* rvh = 1115 static_cast<RenderViewHostImpl*>(GetRenderViewHost()); 1116 if (rvh) { 1117 rvh->ResizeRectChanged(GetRootWindowResizerRect()); 1118 } 1119 1120 should_normally_be_visible_ = true; 1121 NotificationService::current()->Notify( 1122 NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED, 1123 Source<WebContents>(this), 1124 Details<const bool>(&should_normally_be_visible_)); 1125} 1126 1127void WebContentsImpl::WasHidden() { 1128 // If there are entities capturing screenshots or video (e.g., mirroring), 1129 // don't activate the "disable rendering" optimization. 1130 if (capturer_count_ == 0) { 1131 // |GetRenderViewHost()| can be NULL if the user middle clicks a link to 1132 // open a tab in the background, then closes the tab before selecting it. 1133 // This is because closing the tab calls WebContentsImpl::Destroy(), which 1134 // removes the |GetRenderViewHost()|; then when we actually destroy the 1135 // window, OnWindowPosChanged() notices and calls WasHidden() (which 1136 // calls us). 1137 RenderWidgetHostViewPort* rwhv = 1138 RenderWidgetHostViewPort::FromRWHV(GetRenderWidgetHostView()); 1139 if (rwhv) 1140 rwhv->WasHidden(); 1141 } 1142 1143 should_normally_be_visible_ = false; 1144 NotificationService::current()->Notify( 1145 NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED, 1146 Source<WebContents>(this), 1147 Details<const bool>(&should_normally_be_visible_)); 1148} 1149 1150bool WebContentsImpl::NeedToFireBeforeUnload() { 1151 // TODO(creis): Should we fire even for interstitial pages? 1152 return WillNotifyDisconnection() && 1153 !ShowingInterstitialPage() && 1154 !static_cast<RenderViewHostImpl*>( 1155 GetRenderViewHost())->SuddenTerminationAllowed(); 1156} 1157 1158void WebContentsImpl::Stop() { 1159 render_manager_.Stop(); 1160 FOR_EACH_OBSERVER(WebContentsObserver, observers_, StopNavigation()); 1161} 1162 1163WebContents* WebContentsImpl::Clone() { 1164 // We use our current SiteInstance since the cloned entry will use it anyway. 1165 // We pass our own opener so that the cloned page can access it if it was 1166 // before. 1167 CreateParams create_params(GetBrowserContext(), GetSiteInstance()); 1168 create_params.initial_size = view_->GetContainerSize(); 1169 WebContentsImpl* tc = CreateWithOpener(create_params, opener_); 1170 tc->GetController().CopyStateFrom(controller_); 1171 FOR_EACH_OBSERVER(WebContentsObserver, 1172 observers_, 1173 DidCloneToNewWebContents(this, tc)); 1174 return tc; 1175} 1176 1177void WebContentsImpl::Observe(int type, 1178 const NotificationSource& source, 1179 const NotificationDetails& details) { 1180 switch (type) { 1181 case NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED: { 1182 RenderWidgetHost* host = Source<RenderWidgetHost>(source).ptr(); 1183 for (PendingWidgetViews::iterator i = pending_widget_views_.begin(); 1184 i != pending_widget_views_.end(); ++i) { 1185 if (host->GetView() == i->second) { 1186 pending_widget_views_.erase(i); 1187 break; 1188 } 1189 } 1190 break; 1191 } 1192 default: 1193 NOTREACHED(); 1194 } 1195} 1196 1197void WebContentsImpl::Init(const WebContents::CreateParams& params) { 1198 render_manager_.Init( 1199 params.browser_context, params.site_instance, params.routing_id, 1200 params.main_frame_routing_id); 1201 1202 view_.reset(GetContentClient()->browser()-> 1203 OverrideCreateWebContentsView(this, &render_view_host_delegate_view_)); 1204 if (view_) { 1205 CHECK(render_view_host_delegate_view_); 1206 } else { 1207 WebContentsViewDelegate* delegate = 1208 GetContentClient()->browser()->GetWebContentsViewDelegate(this); 1209 1210 if (browser_plugin_guest_) { 1211 scoped_ptr<WebContentsViewPort> platform_view(CreateWebContentsView( 1212 this, delegate, &render_view_host_delegate_view_)); 1213 1214 WebContentsViewGuest* rv = new WebContentsViewGuest( 1215 this, browser_plugin_guest_.get(), platform_view.Pass(), 1216 render_view_host_delegate_view_); 1217 render_view_host_delegate_view_ = rv; 1218 view_.reset(rv); 1219 } else { 1220 // Regular WebContentsView. 1221 view_.reset(CreateWebContentsView( 1222 this, delegate, &render_view_host_delegate_view_)); 1223 } 1224 CHECK(render_view_host_delegate_view_); 1225 } 1226 CHECK(view_.get()); 1227 1228 gfx::Size initial_size = params.initial_size; 1229 view_->CreateView(initial_size, params.context); 1230 1231 // Listen for whether our opener gets destroyed. 1232 if (opener_) 1233 AddDestructionObserver(opener_); 1234 1235 registrar_.Add(this, 1236 NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED, 1237 NotificationService::AllBrowserContextsAndSources()); 1238#if defined(OS_ANDROID) 1239 java_bridge_dispatcher_host_manager_.reset( 1240 new JavaBridgeDispatcherHostManager(this)); 1241#endif 1242 1243#if defined(OS_ANDROID) 1244 date_time_chooser_.reset(new DateTimeChooserAndroid()); 1245#endif 1246} 1247 1248void WebContentsImpl::OnWebContentsDestroyed(WebContentsImpl* web_contents) { 1249 RemoveDestructionObserver(web_contents); 1250 1251 // Clear the opener if it has been closed. 1252 if (web_contents == opener_) { 1253 opener_ = NULL; 1254 return; 1255 } 1256 // Clear a pending contents that has been closed before being shown. 1257 for (PendingContents::iterator iter = pending_contents_.begin(); 1258 iter != pending_contents_.end(); 1259 ++iter) { 1260 if (iter->second != web_contents) 1261 continue; 1262 pending_contents_.erase(iter); 1263 return; 1264 } 1265 NOTREACHED(); 1266} 1267 1268void WebContentsImpl::AddDestructionObserver(WebContentsImpl* web_contents) { 1269 if (!ContainsKey(destruction_observers_, web_contents)) { 1270 destruction_observers_[web_contents] = 1271 new DestructionObserver(this, web_contents); 1272 } 1273} 1274 1275void WebContentsImpl::RemoveDestructionObserver(WebContentsImpl* web_contents) { 1276 DestructionObservers::iterator iter = 1277 destruction_observers_.find(web_contents); 1278 if (iter != destruction_observers_.end()) { 1279 delete destruction_observers_[web_contents]; 1280 destruction_observers_.erase(iter); 1281 } 1282} 1283 1284void WebContentsImpl::AddObserver(WebContentsObserver* observer) { 1285 observers_.AddObserver(observer); 1286} 1287 1288void WebContentsImpl::RemoveObserver(WebContentsObserver* observer) { 1289 observers_.RemoveObserver(observer); 1290} 1291 1292void WebContentsImpl::Activate() { 1293 if (delegate_) 1294 delegate_->ActivateContents(this); 1295} 1296 1297void WebContentsImpl::Deactivate() { 1298 if (delegate_) 1299 delegate_->DeactivateContents(this); 1300} 1301 1302void WebContentsImpl::LostCapture() { 1303 if (delegate_) 1304 delegate_->LostCapture(); 1305} 1306 1307void WebContentsImpl::RenderWidgetDeleted( 1308 RenderWidgetHostImpl* render_widget_host) { 1309 if (is_being_destroyed_) { 1310 // |created_widgets_| might have been destroyed. 1311 return; 1312 } 1313 1314 std::set<RenderWidgetHostImpl*>::iterator iter = 1315 created_widgets_.find(render_widget_host); 1316 if (iter != created_widgets_.end()) 1317 created_widgets_.erase(iter); 1318 1319 if (render_widget_host && 1320 render_widget_host->GetRoutingID() == fullscreen_widget_routing_id_) { 1321 FOR_EACH_OBSERVER(WebContentsObserver, 1322 observers_, 1323 DidDestroyFullscreenWidget( 1324 fullscreen_widget_routing_id_)); 1325 fullscreen_widget_routing_id_ = MSG_ROUTING_NONE; 1326 } 1327} 1328 1329bool WebContentsImpl::PreHandleKeyboardEvent( 1330 const NativeWebKeyboardEvent& event, 1331 bool* is_keyboard_shortcut) { 1332 return delegate_ && 1333 delegate_->PreHandleKeyboardEvent(this, event, is_keyboard_shortcut); 1334} 1335 1336void WebContentsImpl::HandleKeyboardEvent(const NativeWebKeyboardEvent& event) { 1337 if (browser_plugin_embedder_ && 1338 browser_plugin_embedder_->HandleKeyboardEvent(event)) { 1339 return; 1340 } 1341 1342 if (delegate_) 1343 delegate_->HandleKeyboardEvent(this, event); 1344} 1345 1346bool WebContentsImpl::PreHandleWheelEvent( 1347 const WebKit::WebMouseWheelEvent& event) { 1348#if !defined(OS_MACOSX) 1349 // On platforms other than Mac, control+mousewheel changes zoom. On Mac, this 1350 // isn't done for two reasons: 1351 // -the OS already has a gesture to do this through pinch-zoom 1352 // -if a user starts an inertial scroll, let's go, and presses control 1353 // (i.e. control+tab) then the OS's buffered scroll events will come in 1354 // with control key set which isn't what the user wants 1355 if (delegate_ && 1356 event.wheelTicksY && 1357 (event.modifiers & WebKit::WebInputEvent::ControlKey)) { 1358 delegate_->ContentsZoomChange(event.wheelTicksY > 0); 1359 return true; 1360 } 1361#endif 1362 1363 return false; 1364} 1365 1366#if defined(OS_WIN) && defined(USE_AURA) 1367gfx::NativeViewAccessible WebContentsImpl::GetParentNativeViewAccessible() { 1368 return accessible_parent_; 1369} 1370#endif 1371 1372void WebContentsImpl::HandleMouseDown() { 1373 if (delegate_) 1374 delegate_->HandleMouseDown(); 1375} 1376 1377void WebContentsImpl::HandleMouseUp() { 1378 if (delegate_) 1379 delegate_->HandleMouseUp(); 1380} 1381 1382void WebContentsImpl::HandlePointerActivate() { 1383 if (delegate_) 1384 delegate_->HandlePointerActivate(); 1385} 1386 1387void WebContentsImpl::HandleGestureBegin() { 1388 if (delegate_) 1389 delegate_->HandleGestureBegin(); 1390} 1391 1392void WebContentsImpl::HandleGestureEnd() { 1393 if (delegate_) 1394 delegate_->HandleGestureEnd(); 1395} 1396 1397void WebContentsImpl::ToggleFullscreenMode(bool enter_fullscreen) { 1398 if (delegate_) 1399 delegate_->ToggleFullscreenModeForTab(this, enter_fullscreen); 1400} 1401 1402bool WebContentsImpl::IsFullscreenForCurrentTab() const { 1403 return delegate_ ? delegate_->IsFullscreenForTabOrPending(this) : false; 1404} 1405 1406void WebContentsImpl::RequestToLockMouse(bool user_gesture, 1407 bool last_unlocked_by_target) { 1408 if (delegate_) { 1409 delegate_->RequestToLockMouse(this, user_gesture, last_unlocked_by_target); 1410 } else { 1411 GotResponseToLockMouseRequest(false); 1412 } 1413} 1414 1415void WebContentsImpl::LostMouseLock() { 1416 if (delegate_) 1417 delegate_->LostMouseLock(); 1418} 1419 1420void WebContentsImpl::CreateNewWindow( 1421 int route_id, 1422 int main_frame_route_id, 1423 const ViewHostMsg_CreateWindow_Params& params, 1424 SessionStorageNamespace* session_storage_namespace) { 1425 if (delegate_ && 1426 !delegate_->ShouldCreateWebContents(this, 1427 route_id, 1428 params.window_container_type, 1429 params.frame_name, 1430 params.target_url, 1431 params.referrer, 1432 params.disposition, 1433 params.features, 1434 params.user_gesture, 1435 params.opener_suppressed)) { 1436 GetRenderViewHost()->GetProcess()->ResumeRequestsForView(route_id); 1437 GetRenderViewHost()->GetProcess()->ResumeRequestsForView( 1438 main_frame_route_id); 1439 return; 1440 } 1441 1442 // We usually create the new window in the same BrowsingInstance (group of 1443 // script-related windows), by passing in the current SiteInstance. However, 1444 // if the opener is being suppressed (in a non-guest), we create a new 1445 // SiteInstance in its own BrowsingInstance. 1446 bool is_guest = GetRenderProcessHost()->IsGuest(); 1447 1448 scoped_refptr<SiteInstance> site_instance = 1449 params.opener_suppressed && !is_guest ? 1450 SiteInstance::CreateForURL(GetBrowserContext(), params.target_url) : 1451 GetSiteInstance(); 1452 1453 // Create the new web contents. This will automatically create the new 1454 // WebContentsView. In the future, we may want to create the view separately. 1455 WebContentsImpl* new_contents = 1456 new WebContentsImpl(GetBrowserContext(), 1457 params.opener_suppressed ? NULL : this); 1458 1459 // We must assign the SessionStorageNamespace before calling Init(). 1460 // 1461 // http://crbug.com/142685 1462 const std::string& partition_id = 1463 GetContentClient()->browser()-> 1464 GetStoragePartitionIdForSite(GetBrowserContext(), 1465 site_instance->GetSiteURL()); 1466 StoragePartition* partition = BrowserContext::GetStoragePartition( 1467 GetBrowserContext(), site_instance.get()); 1468 DOMStorageContextWrapper* dom_storage_context = 1469 static_cast<DOMStorageContextWrapper*>(partition->GetDOMStorageContext()); 1470 SessionStorageNamespaceImpl* session_storage_namespace_impl = 1471 static_cast<SessionStorageNamespaceImpl*>(session_storage_namespace); 1472 CHECK(session_storage_namespace_impl->IsFromContext(dom_storage_context)); 1473 new_contents->GetController().SetSessionStorageNamespace( 1474 partition_id, 1475 session_storage_namespace); 1476 CreateParams create_params(GetBrowserContext(), site_instance.get()); 1477 create_params.routing_id = route_id; 1478 create_params.main_frame_routing_id = main_frame_route_id; 1479 if (!is_guest) { 1480 create_params.context = view_->GetNativeView(); 1481 create_params.initial_size = view_->GetContainerSize(); 1482 } else { 1483 // This makes |new_contents| act as a guest. 1484 // For more info, see comment above class BrowserPluginGuest. 1485 int instance_id = GetBrowserPluginGuestManager()->get_next_instance_id(); 1486 WebContentsImpl* new_contents_impl = 1487 static_cast<WebContentsImpl*>(new_contents); 1488 BrowserPluginGuest::CreateWithOpener(instance_id, new_contents_impl, 1489 GetBrowserPluginGuest(), !!new_contents_impl->opener()); 1490 } 1491 new_contents->Init(create_params); 1492 1493 // Save the window for later if we're not suppressing the opener (since it 1494 // will be shown immediately). 1495 if (!params.opener_suppressed) { 1496 if (!is_guest) { 1497 WebContentsViewPort* new_view = new_contents->view_.get(); 1498 1499 // TODO(brettw): It seems bogus that we have to call this function on the 1500 // newly created object and give it one of its own member variables. 1501 new_view->CreateViewForWidget(new_contents->GetRenderViewHost()); 1502 } 1503 // Save the created window associated with the route so we can show it 1504 // later. 1505 DCHECK_NE(MSG_ROUTING_NONE, route_id); 1506 pending_contents_[route_id] = new_contents; 1507 AddDestructionObserver(new_contents); 1508 } 1509 1510 if (delegate_) { 1511 delegate_->WebContentsCreated( 1512 this, params.opener_frame_id, params.frame_name, 1513 params.target_url, new_contents); 1514 } 1515 1516 if (params.opener_suppressed) { 1517 // When the opener is suppressed, the original renderer cannot access the 1518 // new window. As a result, we need to show and navigate the window here. 1519 bool was_blocked = false; 1520 if (delegate_) { 1521 gfx::Rect initial_pos; 1522 delegate_->AddNewContents( 1523 this, new_contents, params.disposition, initial_pos, 1524 params.user_gesture, &was_blocked); 1525 } 1526 if (!was_blocked) { 1527 OpenURLParams open_params(params.target_url, 1528 Referrer(), 1529 CURRENT_TAB, 1530 PAGE_TRANSITION_LINK, 1531 true /* is_renderer_initiated */); 1532 open_params.user_gesture = params.user_gesture; 1533 new_contents->OpenURL(open_params); 1534 } 1535 } 1536} 1537 1538void WebContentsImpl::CreateNewWidget(int route_id, 1539 WebKit::WebPopupType popup_type) { 1540 CreateNewWidget(route_id, false, popup_type); 1541} 1542 1543void WebContentsImpl::CreateNewFullscreenWidget(int route_id) { 1544 CreateNewWidget(route_id, true, WebKit::WebPopupTypeNone); 1545} 1546 1547void WebContentsImpl::CreateNewWidget(int route_id, 1548 bool is_fullscreen, 1549 WebKit::WebPopupType popup_type) { 1550 RenderProcessHost* process = GetRenderProcessHost(); 1551 RenderWidgetHostImpl* widget_host = 1552 new RenderWidgetHostImpl(this, process, route_id); 1553 created_widgets_.insert(widget_host); 1554 1555 RenderWidgetHostViewPort* widget_view = RenderWidgetHostViewPort::FromRWHV( 1556 view_->CreateViewForPopupWidget(widget_host)); 1557 if (!widget_view) 1558 return; 1559 if (!is_fullscreen) { 1560 // Popups should not get activated. 1561 widget_view->SetPopupType(popup_type); 1562 } 1563 // Save the created widget associated with the route so we can show it later. 1564 pending_widget_views_[route_id] = widget_view; 1565 1566#if defined(OS_MACOSX) 1567 // A RenderWidgetHostViewMac has lifetime scoped to the view. We'll retain it 1568 // to allow it to survive the trip without being hosted. 1569 base::mac::NSObjectRetain(widget_view->GetNativeView()); 1570#endif 1571} 1572 1573void WebContentsImpl::ShowCreatedWindow(int route_id, 1574 WindowOpenDisposition disposition, 1575 const gfx::Rect& initial_pos, 1576 bool user_gesture) { 1577 WebContentsImpl* contents = GetCreatedWindow(route_id); 1578 if (contents) { 1579 WebContentsDelegate* delegate = GetDelegate(); 1580 if (delegate) { 1581 delegate->AddNewContents( 1582 this, contents, disposition, initial_pos, user_gesture, NULL); 1583 } 1584 } 1585} 1586 1587void WebContentsImpl::ShowCreatedWidget(int route_id, 1588 const gfx::Rect& initial_pos) { 1589 ShowCreatedWidget(route_id, false, initial_pos); 1590} 1591 1592void WebContentsImpl::ShowCreatedFullscreenWidget(int route_id) { 1593 ShowCreatedWidget(route_id, true, gfx::Rect()); 1594 1595 DCHECK_EQ(MSG_ROUTING_NONE, fullscreen_widget_routing_id_); 1596 fullscreen_widget_routing_id_ = route_id; 1597 FOR_EACH_OBSERVER(WebContentsObserver, 1598 observers_, 1599 DidShowFullscreenWidget(route_id)); 1600} 1601 1602void WebContentsImpl::ShowCreatedWidget(int route_id, 1603 bool is_fullscreen, 1604 const gfx::Rect& initial_pos) { 1605 if (delegate_) 1606 delegate_->RenderWidgetShowing(); 1607 1608 RenderWidgetHostViewPort* widget_host_view = 1609 RenderWidgetHostViewPort::FromRWHV(GetCreatedWidget(route_id)); 1610 if (!widget_host_view) 1611 return; 1612 if (is_fullscreen) 1613 widget_host_view->InitAsFullscreen(GetRenderWidgetHostViewPort()); 1614 else 1615 widget_host_view->InitAsPopup(GetRenderWidgetHostViewPort(), initial_pos); 1616 1617 RenderWidgetHostImpl* render_widget_host_impl = 1618 RenderWidgetHostImpl::From(widget_host_view->GetRenderWidgetHost()); 1619 render_widget_host_impl->Init(); 1620 // Only allow privileged mouse lock for fullscreen render widget, which is 1621 // used to implement Pepper Flash fullscreen. 1622 render_widget_host_impl->set_allow_privileged_mouse_lock(is_fullscreen); 1623 1624#if defined(OS_MACOSX) 1625 // A RenderWidgetHostViewMac has lifetime scoped to the view. Now that it's 1626 // properly embedded (or purposefully ignored) we can release the retain we 1627 // took in CreateNewWidget(). 1628 base::mac::NSObjectRelease(widget_host_view->GetNativeView()); 1629#endif 1630} 1631 1632WebContentsImpl* WebContentsImpl::GetCreatedWindow(int route_id) { 1633 PendingContents::iterator iter = pending_contents_.find(route_id); 1634 1635 // Certain systems can block the creation of new windows. If we didn't succeed 1636 // in creating one, just return NULL. 1637 if (iter == pending_contents_.end()) { 1638 return NULL; 1639 } 1640 1641 WebContentsImpl* new_contents = iter->second; 1642 pending_contents_.erase(route_id); 1643 RemoveDestructionObserver(new_contents); 1644 1645 // Don't initialize the guest WebContents immediately. 1646 if (new_contents->GetRenderProcessHost()->IsGuest()) 1647 return new_contents; 1648 1649 if (!new_contents->GetRenderProcessHost()->HasConnection() || 1650 !new_contents->GetRenderViewHost()->GetView()) 1651 return NULL; 1652 1653 // TODO(brettw): It seems bogus to reach into here and initialize the host. 1654 static_cast<RenderViewHostImpl*>(new_contents->GetRenderViewHost())->Init(); 1655 return new_contents; 1656} 1657 1658RenderWidgetHostView* WebContentsImpl::GetCreatedWidget(int route_id) { 1659 PendingWidgetViews::iterator iter = pending_widget_views_.find(route_id); 1660 if (iter == pending_widget_views_.end()) { 1661 DCHECK(false); 1662 return NULL; 1663 } 1664 1665 RenderWidgetHostView* widget_host_view = iter->second; 1666 pending_widget_views_.erase(route_id); 1667 1668 RenderWidgetHost* widget_host = widget_host_view->GetRenderWidgetHost(); 1669 if (!widget_host->GetProcess()->HasConnection()) { 1670 // The view has gone away or the renderer crashed. Nothing to do. 1671 return NULL; 1672 } 1673 1674 return widget_host_view; 1675} 1676 1677void WebContentsImpl::ShowContextMenu(const ContextMenuParams& params) { 1678 // Allow WebContentsDelegates to handle the context menu operation first. 1679 if (delegate_ && delegate_->HandleContextMenu(params)) 1680 return; 1681 1682 render_view_host_delegate_view_->ShowContextMenu(params); 1683} 1684 1685void WebContentsImpl::RequestMediaAccessPermission( 1686 const MediaStreamRequest& request, 1687 const MediaResponseCallback& callback) { 1688 if (delegate_) 1689 delegate_->RequestMediaAccessPermission(this, request, callback); 1690 else 1691 callback.Run(MediaStreamDevices(), scoped_ptr<MediaStreamUI>()); 1692} 1693 1694SessionStorageNamespace* WebContentsImpl::GetSessionStorageNamespace( 1695 SiteInstance* instance) { 1696 return controller_.GetSessionStorageNamespace(instance); 1697} 1698 1699void WebContentsImpl::DidSendScreenRects(RenderWidgetHostImpl* rwh) { 1700 if (browser_plugin_embedder_) 1701 browser_plugin_embedder_->DidSendScreenRects(); 1702} 1703 1704void WebContentsImpl::UpdatePreferredSize(const gfx::Size& pref_size) { 1705 preferred_size_ = pref_size; 1706 if (delegate_) 1707 delegate_->UpdatePreferredSize(this, pref_size); 1708} 1709 1710void WebContentsImpl::ResizeDueToAutoResize(const gfx::Size& new_size) { 1711 if (delegate_) 1712 delegate_->ResizeDueToAutoResize(this, new_size); 1713} 1714 1715WebContents* WebContentsImpl::OpenURL(const OpenURLParams& params) { 1716 if (!delegate_) 1717 return NULL; 1718 1719 WebContents* new_contents = delegate_->OpenURLFromTab(this, params); 1720 return new_contents; 1721} 1722 1723bool WebContentsImpl::Send(IPC::Message* message) { 1724 if (!GetRenderViewHost()) { 1725 delete message; 1726 return false; 1727 } 1728 1729 return GetRenderViewHost()->Send(message); 1730} 1731 1732bool WebContentsImpl::NavigateToPendingEntry( 1733 NavigationController::ReloadType reload_type) { 1734 return NavigateToEntry( 1735 *NavigationEntryImpl::FromNavigationEntry(controller_.GetPendingEntry()), 1736 reload_type); 1737} 1738 1739void WebContentsImpl::RenderViewForInterstitialPageCreated( 1740 RenderViewHost* render_view_host) { 1741 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 1742 RenderViewForInterstitialPageCreated(render_view_host)); 1743} 1744 1745void WebContentsImpl::AttachInterstitialPage( 1746 InterstitialPageImpl* interstitial_page) { 1747 DCHECK(interstitial_page); 1748 render_manager_.set_interstitial_page(interstitial_page); 1749 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 1750 DidAttachInterstitialPage()); 1751} 1752 1753void WebContentsImpl::DetachInterstitialPage() { 1754 if (GetInterstitialPage()) 1755 render_manager_.remove_interstitial_page(); 1756 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 1757 DidDetachInterstitialPage()); 1758} 1759 1760bool WebContentsImpl::NavigateToEntry( 1761 const NavigationEntryImpl& entry, 1762 NavigationController::ReloadType reload_type) { 1763 TRACE_EVENT0("browser", "WebContentsImpl::NavigateToEntry"); 1764 1765 // The renderer will reject IPC messages with URLs longer than 1766 // this limit, so don't attempt to navigate with a longer URL. 1767 if (entry.GetURL().spec().size() > kMaxURLChars) 1768 return false; 1769 1770 RenderViewHostImpl* dest_render_view_host = 1771 static_cast<RenderViewHostImpl*>(render_manager_.Navigate(entry)); 1772 if (!dest_render_view_host) 1773 return false; // Unable to create the desired render view host. 1774 1775 // For security, we should never send non-Web-UI URLs to a Web UI renderer. 1776 // Double check that here. 1777 int enabled_bindings = dest_render_view_host->GetEnabledBindings(); 1778 bool data_urls_allowed = delegate_ && delegate_->CanLoadDataURLsInWebUI(); 1779 bool is_allowed_in_web_ui_renderer = 1780 WebUIControllerFactoryRegistry::GetInstance()->IsURLAcceptableForWebUI( 1781 GetBrowserContext(), entry.GetURL(), data_urls_allowed); 1782 if ((enabled_bindings & BINDINGS_POLICY_WEB_UI) && 1783 !is_allowed_in_web_ui_renderer) { 1784 // Log the URL to help us diagnose any future failures of this CHECK. 1785 GetContentClient()->SetActiveURL(entry.GetURL()); 1786 CHECK(0); 1787 } 1788 1789 // Notify observers that we will navigate in this RV. 1790 FOR_EACH_OBSERVER(WebContentsObserver, 1791 observers_, 1792 AboutToNavigateRenderView(dest_render_view_host)); 1793 1794 // Used for page load time metrics. 1795 current_load_start_ = base::TimeTicks::Now(); 1796 1797 // Navigate in the desired RenderViewHost. 1798 ViewMsg_Navigate_Params navigate_params; 1799 MakeNavigateParams(entry, controller_, delegate_, reload_type, 1800 &navigate_params); 1801 dest_render_view_host->Navigate(navigate_params); 1802 1803 if (entry.GetPageID() == -1) { 1804 // HACK!! This code suppresses javascript: URLs from being added to 1805 // session history, which is what we want to do for javascript: URLs that 1806 // do not generate content. What we really need is a message from the 1807 // renderer telling us that a new page was not created. The same message 1808 // could be used for mailto: URLs and the like. 1809 if (entry.GetURL().SchemeIs(chrome::kJavaScriptScheme)) 1810 return false; 1811 } 1812 1813 // Notify observers about navigation. 1814 FOR_EACH_OBSERVER(WebContentsObserver, 1815 observers_, 1816 NavigateToPendingEntry(entry.GetURL(), reload_type)); 1817 1818 if (delegate_) 1819 delegate_->DidNavigateToPendingEntry(this); 1820 1821 return true; 1822} 1823 1824void WebContentsImpl::SetHistoryLengthAndPrune( 1825 const SiteInstance* site_instance, 1826 int history_length, 1827 int32 minimum_page_id) { 1828 // SetHistoryLengthAndPrune doesn't work when there are pending cross-site 1829 // navigations. Callers should ensure that this is the case. 1830 if (render_manager_.pending_render_view_host()) { 1831 NOTREACHED(); 1832 return; 1833 } 1834 RenderViewHostImpl* rvh = GetRenderViewHostImpl(); 1835 if (!rvh) { 1836 NOTREACHED(); 1837 return; 1838 } 1839 if (site_instance && rvh->GetSiteInstance() != site_instance) { 1840 NOTREACHED(); 1841 return; 1842 } 1843 Send(new ViewMsg_SetHistoryLengthAndPrune(GetRoutingID(), 1844 history_length, 1845 minimum_page_id)); 1846} 1847 1848void WebContentsImpl::FocusThroughTabTraversal(bool reverse) { 1849 if (ShowingInterstitialPage()) { 1850 render_manager_.interstitial_page()->FocusThroughTabTraversal(reverse); 1851 return; 1852 } 1853 GetRenderViewHostImpl()->SetInitialFocus(reverse); 1854} 1855 1856bool WebContentsImpl::ShowingInterstitialPage() const { 1857 return render_manager_.interstitial_page() != NULL; 1858} 1859 1860InterstitialPage* WebContentsImpl::GetInterstitialPage() const { 1861 return render_manager_.interstitial_page(); 1862} 1863 1864bool WebContentsImpl::IsSavable() { 1865 // WebKit creates Document object when MIME type is application/xhtml+xml, 1866 // so we also support this MIME type. 1867 return contents_mime_type_ == "text/html" || 1868 contents_mime_type_ == "text/xml" || 1869 contents_mime_type_ == "application/xhtml+xml" || 1870 contents_mime_type_ == "text/plain" || 1871 contents_mime_type_ == "text/css" || 1872 net::IsSupportedJavascriptMimeType(contents_mime_type_.c_str()); 1873} 1874 1875void WebContentsImpl::OnSavePage() { 1876 // If we can not save the page, try to download it. 1877 if (!IsSavable()) { 1878 RecordDownloadSource(INITIATED_BY_SAVE_PACKAGE_ON_NON_HTML); 1879 SaveFrame(GetURL(), Referrer()); 1880 return; 1881 } 1882 1883 Stop(); 1884 1885 // Create the save package and possibly prompt the user for the name to save 1886 // the page as. The user prompt is an asynchronous operation that runs on 1887 // another thread. 1888 save_package_ = new SavePackage(this); 1889 save_package_->GetSaveInfo(); 1890} 1891 1892// Used in automated testing to bypass prompting the user for file names. 1893// Instead, the names and paths are hard coded rather than running them through 1894// file name sanitation and extension / mime checking. 1895bool WebContentsImpl::SavePage(const base::FilePath& main_file, 1896 const base::FilePath& dir_path, 1897 SavePageType save_type) { 1898 // Stop the page from navigating. 1899 Stop(); 1900 1901 save_package_ = new SavePackage(this, save_type, main_file, dir_path); 1902 return save_package_->Init(SavePackageDownloadCreatedCallback()); 1903} 1904 1905void WebContentsImpl::SaveFrame(const GURL& url, 1906 const Referrer& referrer) { 1907 if (!GetURL().is_valid()) 1908 return; 1909 bool is_main_frame = (url == GetURL()); 1910 1911 DownloadManager* dlm = 1912 BrowserContext::GetDownloadManager(GetBrowserContext()); 1913 if (!dlm) 1914 return; 1915 int64 post_id = -1; 1916 if (is_main_frame) { 1917 const NavigationEntry* entry = controller_.GetActiveEntry(); 1918 if (entry) 1919 post_id = entry->GetPostID(); 1920 } 1921 scoped_ptr<DownloadUrlParameters> params( 1922 DownloadUrlParameters::FromWebContents(this, url)); 1923 params->set_referrer(referrer); 1924 params->set_post_id(post_id); 1925 params->set_prefer_cache(true); 1926 if (post_id >= 0) 1927 params->set_method("POST"); 1928 params->set_prompt(true); 1929 dlm->DownloadUrl(params.Pass()); 1930} 1931 1932void WebContentsImpl::GenerateMHTML( 1933 const base::FilePath& file, 1934 const base::Callback<void(const base::FilePath&, int64)>& callback) { 1935 MHTMLGenerationManager::GetInstance()->GenerateMHTML(this, file, callback); 1936} 1937 1938bool WebContentsImpl::IsActiveEntry(int32 page_id) { 1939 NavigationEntryImpl* active_entry = 1940 NavigationEntryImpl::FromNavigationEntry(controller_.GetActiveEntry()); 1941 return (active_entry != NULL && 1942 active_entry->site_instance() == GetSiteInstance() && 1943 active_entry->GetPageID() == page_id); 1944} 1945 1946const std::string& WebContentsImpl::GetContentsMimeType() const { 1947 return contents_mime_type_; 1948} 1949 1950bool WebContentsImpl::WillNotifyDisconnection() const { 1951 return notify_disconnection_; 1952} 1953 1954void WebContentsImpl::SetOverrideEncoding(const std::string& encoding) { 1955 SetEncoding(encoding); 1956 Send(new ViewMsg_SetPageEncoding(GetRoutingID(), encoding)); 1957} 1958 1959void WebContentsImpl::ResetOverrideEncoding() { 1960 encoding_.clear(); 1961 Send(new ViewMsg_ResetPageEncodingToDefault(GetRoutingID())); 1962} 1963 1964RendererPreferences* WebContentsImpl::GetMutableRendererPrefs() { 1965 return &renderer_preferences_; 1966} 1967 1968void WebContentsImpl::Close() { 1969 Close(GetRenderViewHost()); 1970} 1971 1972void WebContentsImpl::DragSourceEndedAt(int client_x, int client_y, 1973 int screen_x, int screen_y, WebKit::WebDragOperation operation) { 1974 if (browser_plugin_embedder_.get()) 1975 browser_plugin_embedder_->DragSourceEndedAt(client_x, client_y, 1976 screen_x, screen_y, operation); 1977 if (GetRenderViewHost()) 1978 GetRenderViewHostImpl()->DragSourceEndedAt(client_x, client_y, 1979 screen_x, screen_y, operation); 1980} 1981 1982void WebContentsImpl::DragSourceMovedTo(int client_x, int client_y, 1983 int screen_x, int screen_y) { 1984 if (browser_plugin_embedder_.get()) 1985 browser_plugin_embedder_->DragSourceMovedTo(client_x, client_y, 1986 screen_x, screen_y); 1987 if (GetRenderViewHost()) 1988 GetRenderViewHostImpl()->DragSourceMovedTo(client_x, client_y, 1989 screen_x, screen_y); 1990} 1991 1992void WebContentsImpl::SystemDragEnded() { 1993 if (GetRenderViewHost()) 1994 GetRenderViewHostImpl()->DragSourceSystemDragEnded(); 1995 if (delegate_) 1996 delegate_->DragEnded(); 1997 if (browser_plugin_embedder_.get()) 1998 browser_plugin_embedder_->SystemDragEnded(); 1999} 2000 2001void WebContentsImpl::UserGestureDone() { 2002 OnUserGesture(); 2003} 2004 2005void WebContentsImpl::SetClosedByUserGesture(bool value) { 2006 closed_by_user_gesture_ = value; 2007} 2008 2009bool WebContentsImpl::GetClosedByUserGesture() const { 2010 return closed_by_user_gesture_; 2011} 2012 2013double WebContentsImpl::GetZoomLevel() const { 2014 HostZoomMapImpl* zoom_map = static_cast<HostZoomMapImpl*>( 2015 HostZoomMap::GetForBrowserContext(GetBrowserContext())); 2016 if (!zoom_map) 2017 return 0; 2018 2019 double zoom_level; 2020 if (temporary_zoom_settings_) { 2021 zoom_level = zoom_map->GetTemporaryZoomLevel( 2022 GetRenderProcessHost()->GetID(), GetRenderViewHost()->GetRoutingID()); 2023 } else { 2024 GURL url; 2025 NavigationEntry* active_entry = GetController().GetActiveEntry(); 2026 // Since zoom map is updated using rewritten URL, use rewritten URL 2027 // to get the zoom level. 2028 url = active_entry ? active_entry->GetURL() : GURL::EmptyGURL(); 2029 zoom_level = zoom_map->GetZoomLevelForHostAndScheme(url.scheme(), 2030 net::GetHostOrSpecFromURL(url)); 2031 } 2032 return zoom_level; 2033} 2034 2035int WebContentsImpl::GetZoomPercent(bool* enable_increment, 2036 bool* enable_decrement) const { 2037 *enable_decrement = *enable_increment = false; 2038 // Calculate the zoom percent from the factor. Round up to the nearest whole 2039 // number. 2040 int percent = static_cast<int>( 2041 ZoomLevelToZoomFactor(GetZoomLevel()) * 100 + 0.5); 2042 *enable_decrement = percent > minimum_zoom_percent_; 2043 *enable_increment = percent < maximum_zoom_percent_; 2044 return percent; 2045} 2046 2047void WebContentsImpl::ViewSource() { 2048 if (!delegate_) 2049 return; 2050 2051 NavigationEntry* active_entry = GetController().GetActiveEntry(); 2052 if (!active_entry) 2053 return; 2054 2055 delegate_->ViewSourceForTab(this, active_entry->GetURL()); 2056} 2057 2058void WebContentsImpl::ViewFrameSource(const GURL& url, 2059 const PageState& page_state) { 2060 if (!delegate_) 2061 return; 2062 2063 delegate_->ViewSourceForFrame(this, url, page_state); 2064} 2065 2066int WebContentsImpl::GetMinimumZoomPercent() const { 2067 return minimum_zoom_percent_; 2068} 2069 2070int WebContentsImpl::GetMaximumZoomPercent() const { 2071 return maximum_zoom_percent_; 2072} 2073 2074gfx::Size WebContentsImpl::GetPreferredSize() const { 2075 return preferred_size_; 2076} 2077 2078bool WebContentsImpl::GotResponseToLockMouseRequest(bool allowed) { 2079 return GetRenderViewHost() ? 2080 GetRenderViewHostImpl()->GotResponseToLockMouseRequest(allowed) : false; 2081} 2082 2083bool WebContentsImpl::HasOpener() const { 2084 return opener_ != NULL; 2085} 2086 2087void WebContentsImpl::DidChooseColorInColorChooser(SkColor color) { 2088 Send(new ViewMsg_DidChooseColorResponse( 2089 GetRoutingID(), color_chooser_identifier_, color)); 2090} 2091 2092void WebContentsImpl::DidEndColorChooser() { 2093 Send(new ViewMsg_DidEndColorChooser(GetRoutingID(), 2094 color_chooser_identifier_)); 2095 color_chooser_.reset(); 2096 color_chooser_identifier_ = 0; 2097} 2098 2099int WebContentsImpl::DownloadImage(const GURL& url, 2100 bool is_favicon, 2101 uint32_t preferred_image_size, 2102 uint32_t max_image_size, 2103 const ImageDownloadCallback& callback) { 2104 RenderViewHost* host = GetRenderViewHost(); 2105 int id = StartDownload( 2106 host, url, is_favicon, preferred_image_size, max_image_size); 2107 image_download_map_[id] = callback; 2108 return id; 2109} 2110 2111bool WebContentsImpl::FocusLocationBarByDefault() { 2112 NavigationEntry* entry = controller_.GetActiveEntry(); 2113 if (entry && entry->GetURL() == GURL(kAboutBlankURL)) 2114 return true; 2115 return delegate_ && delegate_->ShouldFocusLocationBarByDefault(this); 2116} 2117 2118void WebContentsImpl::SetFocusToLocationBar(bool select_all) { 2119 if (delegate_) 2120 delegate_->SetFocusToLocationBar(select_all); 2121} 2122 2123void WebContentsImpl::DidStartProvisionalLoadForFrame( 2124 RenderViewHost* render_view_host, 2125 int64 frame_id, 2126 int64 parent_frame_id, 2127 bool is_main_frame, 2128 const GURL& url) { 2129 bool is_error_page = (url.spec() == kUnreachableWebDataURL); 2130 bool is_iframe_srcdoc = (url.spec() == kAboutSrcDocURL); 2131 GURL validated_url(url); 2132 RenderProcessHost* render_process_host = 2133 render_view_host->GetProcess(); 2134 RenderViewHost::FilterURL(render_process_host, false, &validated_url); 2135 2136 if (is_main_frame) 2137 DidChangeLoadProgress(0); 2138 2139 // Create a pending entry for this provisional load (if none exists) using the 2140 // current SiteInstance, and ensure the address bar updates accordingly. 2141 // We don't know the referrer or extra headers at this point, but the referrer 2142 // will be set properly upon commit. 2143 if (is_main_frame && !controller_.GetPendingEntry()) { 2144 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry( 2145 controller_.CreateNavigationEntry(validated_url, 2146 content::Referrer(), 2147 content::PAGE_TRANSITION_LINK, 2148 true /* is_renderer_initiated */, 2149 std::string(), GetBrowserContext())); 2150 entry->set_site_instance( 2151 static_cast<SiteInstanceImpl*>(GetSiteInstance())); 2152 controller_.SetPendingEntry(entry); 2153 NotifyNavigationStateChanged(content::INVALIDATE_TYPE_URL); 2154 } 2155 2156 // Notify observers about the start of the provisional load. 2157 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2158 DidStartProvisionalLoadForFrame(frame_id, parent_frame_id, 2159 is_main_frame, validated_url, is_error_page, 2160 is_iframe_srcdoc, render_view_host)); 2161 2162 if (is_main_frame) { 2163 // Notify observers about the provisional change in the main frame URL. 2164 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2165 ProvisionalChangeToMainFrameUrl(validated_url, 2166 render_view_host)); 2167 } 2168} 2169 2170void WebContentsImpl::DidRedirectProvisionalLoad( 2171 RenderViewHost* render_view_host, 2172 int32 page_id, 2173 const GURL& source_url, 2174 const GURL& target_url) { 2175 // TODO(creis): Remove this method and have the pre-rendering code listen to 2176 // the ResourceDispatcherHost's RESOURCE_RECEIVED_REDIRECT notification 2177 // instead. See http://crbug.com/78512. 2178 GURL validated_source_url(source_url); 2179 GURL validated_target_url(target_url); 2180 RenderProcessHost* render_process_host = 2181 render_view_host->GetProcess(); 2182 RenderViewHost::FilterURL(render_process_host, false, &validated_source_url); 2183 RenderViewHost::FilterURL(render_process_host, false, &validated_target_url); 2184 NavigationEntry* entry; 2185 if (page_id == -1) { 2186 entry = controller_.GetPendingEntry(); 2187 } else { 2188 entry = controller_.GetEntryWithPageID(render_view_host->GetSiteInstance(), 2189 page_id); 2190 } 2191 if (!entry || entry->GetURL() != validated_source_url) 2192 return; 2193 2194 // Notify observers about the provisional change in the main frame URL. 2195 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2196 ProvisionalChangeToMainFrameUrl(validated_target_url, 2197 render_view_host)); 2198} 2199 2200void WebContentsImpl::DidFailProvisionalLoadWithError( 2201 RenderViewHost* render_view_host, 2202 const ViewHostMsg_DidFailProvisionalLoadWithError_Params& params) { 2203 VLOG(1) << "Failed Provisional Load: " << params.url.possibly_invalid_spec() 2204 << ", error_code: " << params.error_code 2205 << ", error_description: " << params.error_description 2206 << ", is_main_frame: " << params.is_main_frame 2207 << ", showing_repost_interstitial: " << 2208 params.showing_repost_interstitial 2209 << ", frame_id: " << params.frame_id; 2210 GURL validated_url(params.url); 2211 RenderProcessHost* render_process_host = 2212 render_view_host->GetProcess(); 2213 RenderViewHost::FilterURL(render_process_host, false, &validated_url); 2214 2215 if (net::ERR_ABORTED == params.error_code) { 2216 // EVIL HACK ALERT! Ignore failed loads when we're showing interstitials. 2217 // This means that the interstitial won't be torn down properly, which is 2218 // bad. But if we have an interstitial, go back to another tab type, and 2219 // then load the same interstitial again, we could end up getting the first 2220 // interstitial's "failed" message (as a result of the cancel) when we're on 2221 // the second one. 2222 // 2223 // We can't tell this apart, so we think we're tearing down the current page 2224 // which will cause a crash later one. There is also some code in 2225 // RenderViewHostManager::RendererAbortedProvisionalLoad that is commented 2226 // out because of this problem. 2227 // 2228 // http://code.google.com/p/chromium/issues/detail?id=2855 2229 // Because this will not tear down the interstitial properly, if "back" is 2230 // back to another tab type, the interstitial will still be somewhat alive 2231 // in the previous tab type. If you navigate somewhere that activates the 2232 // tab with the interstitial again, you'll see a flash before the new load 2233 // commits of the interstitial page. 2234 if (ShowingInterstitialPage()) { 2235 LOG(WARNING) << "Discarding message during interstitial."; 2236 return; 2237 } 2238 2239 // Do not clear the pending entry if one exists, so that the user's typed 2240 // URL is not lost when a navigation fails or is aborted. We'll allow 2241 // the view to clear the pending entry and typed URL if the user requests. 2242 2243 render_manager_.RendererAbortedProvisionalLoad(render_view_host); 2244 } 2245 2246 FOR_EACH_OBSERVER(WebContentsObserver, 2247 observers_, 2248 DidFailProvisionalLoad(params.frame_id, 2249 params.is_main_frame, 2250 validated_url, 2251 params.error_code, 2252 params.error_description, 2253 render_view_host)); 2254} 2255 2256void WebContentsImpl::OnDidLoadResourceFromMemoryCache( 2257 const GURL& url, 2258 const std::string& security_info, 2259 const std::string& http_method, 2260 const std::string& mime_type, 2261 ResourceType::Type resource_type) { 2262 base::StatsCounter cache("WebKit.CacheHit"); 2263 cache.Increment(); 2264 2265 // Send out a notification that we loaded a resource from our memory cache. 2266 int cert_id = 0; 2267 net::CertStatus cert_status = 0; 2268 int security_bits = -1; 2269 int connection_status = 0; 2270 DeserializeSecurityInfo(security_info, &cert_id, &cert_status, 2271 &security_bits, &connection_status); 2272 LoadFromMemoryCacheDetails details( 2273 url, GetRenderProcessHost()->GetID(), cert_id, cert_status, http_method, 2274 mime_type, resource_type); 2275 2276 NotificationService::current()->Notify( 2277 NOTIFICATION_LOAD_FROM_MEMORY_CACHE, 2278 Source<NavigationController>(&controller_), 2279 Details<LoadFromMemoryCacheDetails>(&details)); 2280} 2281 2282void WebContentsImpl::OnDidDisplayInsecureContent() { 2283 RecordAction(UserMetricsAction("SSL.DisplayedInsecureContent")); 2284 displayed_insecure_content_ = true; 2285 SSLManager::NotifySSLInternalStateChanged( 2286 GetController().GetBrowserContext()); 2287} 2288 2289void WebContentsImpl::OnDidRunInsecureContent( 2290 const std::string& security_origin, const GURL& target_url) { 2291 LOG(INFO) << security_origin << " ran insecure content from " 2292 << target_url.possibly_invalid_spec(); 2293 RecordAction(UserMetricsAction("SSL.RanInsecureContent")); 2294 if (EndsWith(security_origin, kDotGoogleDotCom, false)) 2295 RecordAction(UserMetricsAction("SSL.RanInsecureContentGoogle")); 2296 controller_.ssl_manager()->DidRunInsecureContent(security_origin); 2297 displayed_insecure_content_ = true; 2298 SSLManager::NotifySSLInternalStateChanged( 2299 GetController().GetBrowserContext()); 2300} 2301 2302void WebContentsImpl::OnDocumentLoadedInFrame(int64 frame_id) { 2303 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2304 DocumentLoadedInFrame(frame_id, message_source_)); 2305} 2306 2307void WebContentsImpl::OnDidFinishLoad( 2308 int64 frame_id, 2309 const GURL& url, 2310 bool is_main_frame) { 2311 GURL validated_url(url); 2312 RenderProcessHost* render_process_host = message_source_->GetProcess(); 2313 RenderViewHost::FilterURL(render_process_host, false, &validated_url); 2314 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2315 DidFinishLoad(frame_id, validated_url, is_main_frame, 2316 message_source_)); 2317} 2318 2319void WebContentsImpl::OnDidFailLoadWithError( 2320 int64 frame_id, 2321 const GURL& url, 2322 bool is_main_frame, 2323 int error_code, 2324 const string16& error_description) { 2325 GURL validated_url(url); 2326 RenderProcessHost* render_process_host = message_source_->GetProcess(); 2327 RenderViewHost::FilterURL(render_process_host, false, &validated_url); 2328 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2329 DidFailLoad(frame_id, validated_url, is_main_frame, 2330 error_code, error_description, 2331 message_source_)); 2332} 2333 2334void WebContentsImpl::OnGoToEntryAtOffset(int offset) { 2335 if (!delegate_ || delegate_->OnGoToEntryOffset(offset)) { 2336 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry( 2337 controller_.GetEntryAtOffset(offset)); 2338 if (!entry) 2339 return; 2340 // Note that we don't call NavigationController::GotToOffset() as we don't 2341 // want to create a pending navigation entry (it might end up lingering 2342 // http://crbug.com/51680). 2343 entry->SetTransitionType( 2344 PageTransitionFromInt( 2345 entry->GetTransitionType() | 2346 PAGE_TRANSITION_FORWARD_BACK)); 2347 NavigateToEntry(*entry, NavigationControllerImpl::NO_RELOAD); 2348 2349 // If the entry is being restored and doesn't have a SiteInstance yet, fill 2350 // it in now that we know. This allows us to find the entry when it commits. 2351 if (!entry->site_instance() && 2352 entry->restore_type() != NavigationEntryImpl::RESTORE_NONE) { 2353 entry->set_site_instance( 2354 static_cast<SiteInstanceImpl*>(GetPendingSiteInstance())); 2355 } 2356 } 2357} 2358 2359void WebContentsImpl::OnUpdateZoomLimits(int minimum_percent, 2360 int maximum_percent, 2361 bool remember) { 2362 minimum_zoom_percent_ = minimum_percent; 2363 maximum_zoom_percent_ = maximum_percent; 2364 temporary_zoom_settings_ = !remember; 2365} 2366 2367void WebContentsImpl::OnEnumerateDirectory(int request_id, 2368 const base::FilePath& path) { 2369 if (!delegate_) 2370 return; 2371 2372 ChildProcessSecurityPolicyImpl* policy = 2373 ChildProcessSecurityPolicyImpl::GetInstance(); 2374 if (policy->CanReadDirectory(GetRenderProcessHost()->GetID(), path)) 2375 delegate_->EnumerateDirectory(this, request_id, path); 2376} 2377 2378void WebContentsImpl::OnJSOutOfMemory() { 2379 if (delegate_) 2380 delegate_->JSOutOfMemory(this); 2381} 2382 2383void WebContentsImpl::OnRegisterProtocolHandler(const std::string& protocol, 2384 const GURL& url, 2385 const string16& title, 2386 bool user_gesture) { 2387 if (!delegate_) 2388 return; 2389 2390 ChildProcessSecurityPolicyImpl* policy = 2391 ChildProcessSecurityPolicyImpl::GetInstance(); 2392 if (policy->IsPseudoScheme(protocol)) 2393 return; 2394 2395 delegate_->RegisterProtocolHandler(this, protocol, url, title, user_gesture); 2396} 2397 2398void WebContentsImpl::OnFindReply(int request_id, 2399 int number_of_matches, 2400 const gfx::Rect& selection_rect, 2401 int active_match_ordinal, 2402 bool final_update) { 2403 if (delegate_) { 2404 delegate_->FindReply(this, request_id, number_of_matches, selection_rect, 2405 active_match_ordinal, final_update); 2406 } 2407} 2408 2409void WebContentsImpl::OnDidProgrammaticallyScroll( 2410 const gfx::Vector2d& scroll_point) { 2411 if (delegate_) 2412 delegate_->DidProgrammaticallyScroll(this, scroll_point); 2413} 2414 2415#if defined(OS_ANDROID) 2416void WebContentsImpl::OnFindMatchRectsReply( 2417 int version, 2418 const std::vector<gfx::RectF>& rects, 2419 const gfx::RectF& active_rect) { 2420 if (delegate_) 2421 delegate_->FindMatchRectsReply(this, version, rects, active_rect); 2422} 2423 2424void WebContentsImpl::OnOpenDateTimeDialog( 2425 const ViewHostMsg_DateTimeDialogValue_Params& value) { 2426 date_time_chooser_->ShowDialog( 2427 ContentViewCore::FromWebContents(this), GetRenderViewHost(), 2428 value.dialog_type, value.year, value.month, value.day, value.hour, 2429 value.minute, value.second, value.week, value.minimum, value.maximum); 2430} 2431 2432#endif 2433 2434void WebContentsImpl::OnCrashedPlugin(const base::FilePath& plugin_path, 2435 base::ProcessId plugin_pid) { 2436 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2437 PluginCrashed(plugin_path, plugin_pid)); 2438} 2439 2440void WebContentsImpl::OnAppCacheAccessed(const GURL& manifest_url, 2441 bool blocked_by_policy) { 2442 // Notify observers about navigation. 2443 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2444 AppCacheAccessed(manifest_url, blocked_by_policy)); 2445} 2446 2447void WebContentsImpl::OnOpenColorChooser(int color_chooser_id, 2448 SkColor color) { 2449 ColorChooser* new_color_chooser = delegate_->OpenColorChooser(this, color); 2450 if (color_chooser_ == new_color_chooser) 2451 return; 2452 color_chooser_.reset(new_color_chooser); 2453 color_chooser_identifier_ = color_chooser_id; 2454} 2455 2456void WebContentsImpl::OnEndColorChooser(int color_chooser_id) { 2457 if (color_chooser_ && 2458 color_chooser_id == color_chooser_identifier_) 2459 color_chooser_->End(); 2460} 2461 2462void WebContentsImpl::OnSetSelectedColorInColorChooser(int color_chooser_id, 2463 SkColor color) { 2464 if (color_chooser_ && 2465 color_chooser_id == color_chooser_identifier_) 2466 color_chooser_->SetSelectedColor(color); 2467} 2468 2469void WebContentsImpl::OnPepperPluginHung(int plugin_child_id, 2470 const base::FilePath& path, 2471 bool is_hung) { 2472 UMA_HISTOGRAM_COUNTS("Pepper.PluginHung", 1); 2473 2474 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2475 PluginHungStatusChanged(plugin_child_id, path, is_hung)); 2476} 2477 2478// This exists for render views that don't have a WebUI, but do have WebUI 2479// bindings enabled. 2480void WebContentsImpl::OnWebUISend(const GURL& source_url, 2481 const std::string& name, 2482 const base::ListValue& args) { 2483 if (delegate_) 2484 delegate_->WebUISend(this, source_url, name, args); 2485} 2486 2487void WebContentsImpl::OnRequestPpapiBrokerPermission( 2488 int routing_id, 2489 const GURL& url, 2490 const base::FilePath& plugin_path) { 2491 if (!delegate_) { 2492 OnPpapiBrokerPermissionResult(routing_id, false); 2493 return; 2494 } 2495 2496 if (!delegate_->RequestPpapiBrokerPermission( 2497 this, url, plugin_path, 2498 base::Bind(&WebContentsImpl::OnPpapiBrokerPermissionResult, 2499 base::Unretained(this), routing_id))) { 2500 NOTIMPLEMENTED(); 2501 OnPpapiBrokerPermissionResult(routing_id, false); 2502 } 2503} 2504 2505void WebContentsImpl::OnPpapiBrokerPermissionResult(int routing_id, 2506 bool result) { 2507 Send(new ViewMsg_PpapiBrokerPermissionResult(routing_id, result)); 2508} 2509 2510void WebContentsImpl::OnBrowserPluginMessage(const IPC::Message& message) { 2511 // This creates a BrowserPluginEmbedder, which handles all the BrowserPlugin 2512 // specific messages for this WebContents. This means that any message from 2513 // a BrowserPlugin prior to this will be ignored. 2514 // For more info, see comment above classes BrowserPluginEmbedder and 2515 // BrowserPluginGuest. 2516 CHECK(!browser_plugin_embedder_.get()); 2517 browser_plugin_embedder_.reset(BrowserPluginEmbedder::Create(this)); 2518 browser_plugin_embedder_->OnMessageReceived(message); 2519} 2520 2521void WebContentsImpl::OnDidDownloadImage( 2522 int id, 2523 int http_status_code, 2524 const GURL& image_url, 2525 int requested_size, 2526 const std::vector<SkBitmap>& bitmaps) { 2527 ImageDownloadMap::iterator iter = image_download_map_.find(id); 2528 if (iter == image_download_map_.end()) { 2529 // Currently WebContents notifies us of ANY downloads so that it is 2530 // possible to get here. 2531 return; 2532 } 2533 if (!iter->second.is_null()) { 2534 iter->second.Run(id, http_status_code, image_url, requested_size, bitmaps); 2535 } 2536 image_download_map_.erase(id); 2537} 2538 2539void WebContentsImpl::OnUpdateFaviconURL( 2540 int32 page_id, 2541 const std::vector<FaviconURL>& candidates) { 2542 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2543 DidUpdateFaviconURL(page_id, candidates)); 2544} 2545 2546FrameTreeNode* WebContentsImpl::FindFrameTreeNodeByID(int64 frame_id) { 2547 // TODO(nasko): Remove this check once we move to creating the root node 2548 // through RenderFrameHost creation. 2549 if (!frame_tree_root_.get()) 2550 return NULL; 2551 2552 FrameTreeNode* node = NULL; 2553 std::queue<FrameTreeNode*> queue; 2554 queue.push(frame_tree_root_.get()); 2555 2556 while (!queue.empty()) { 2557 node = queue.front(); 2558 queue.pop(); 2559 if (node->frame_id() == frame_id) 2560 return node; 2561 2562 for (size_t i = 0; i < node->child_count(); ++i) 2563 queue.push(node->child_at(i)); 2564 } 2565 2566 return NULL; 2567} 2568 2569void WebContentsImpl::OnFrameAttached( 2570 int64 parent_frame_id, 2571 int64 frame_id, 2572 const std::string& frame_name) { 2573 FrameTreeNode* parent = FindFrameTreeNodeByID(parent_frame_id); 2574 if (!parent) 2575 return; 2576 2577 FrameTreeNode* node = new FrameTreeNode(frame_id, frame_name); 2578 parent->AddChild(node); 2579} 2580 2581void WebContentsImpl::OnFrameDetached(int64 parent_frame_id, int64 frame_id) { 2582 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2583 FrameDetached(message_source_, frame_id)); 2584 2585 FrameTreeNode* parent = FindFrameTreeNodeByID(parent_frame_id); 2586 if (!parent) 2587 return; 2588 2589 parent->RemoveChild(frame_id); 2590} 2591 2592void WebContentsImpl::OnMediaNotification(int64 player_cookie, 2593 bool has_video, 2594 bool has_audio, 2595 bool is_playing) { 2596 // Chrome OS does its own detection of audio and video. 2597#if !defined(OS_CHROMEOS) 2598 if (is_playing) { 2599 scoped_ptr<PowerSaveBlocker> blocker; 2600 if (has_video) { 2601 blocker = PowerSaveBlocker::Create( 2602 PowerSaveBlocker::kPowerSaveBlockPreventDisplaySleep, 2603 "Playing video"); 2604#if defined(OS_ANDROID) 2605 static_cast<PowerSaveBlockerImpl*>(blocker.get())-> 2606 InitDisplaySleepBlocker(GetView()->GetTopLevelNativeWindow()); 2607#endif 2608 } else if (has_audio) { 2609 blocker = PowerSaveBlocker::Create( 2610 PowerSaveBlocker::kPowerSaveBlockPreventAppSuspension, 2611 "Playing audio"); 2612 } 2613 2614 if (blocker) 2615 power_save_blockers_[message_source_][player_cookie] = blocker.release(); 2616 } else { 2617 delete power_save_blockers_[message_source_][player_cookie]; 2618 power_save_blockers_[message_source_].erase(player_cookie); 2619 } 2620#endif // !defined(OS_CHROMEOS) 2621} 2622 2623 2624void WebContentsImpl::DidChangeVisibleSSLState() { 2625 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2626 DidChangeVisibleSSLState()); 2627} 2628 2629void WebContentsImpl::NotifyBeforeFormRepostWarningShow() { 2630 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2631 BeforeFormRepostWarningShow()); 2632} 2633 2634// Notifies the RenderWidgetHost instance about the fact that the page is 2635// loading, or done loading and calls the base implementation. 2636void WebContentsImpl::SetIsLoading(bool is_loading, 2637 LoadNotificationDetails* details) { 2638 if (is_loading == is_loading_) 2639 return; 2640 2641 if (!is_loading) { 2642 load_state_ = net::LoadStateWithParam(net::LOAD_STATE_IDLE, string16()); 2643 load_state_host_.clear(); 2644 upload_size_ = 0; 2645 upload_position_ = 0; 2646 } 2647 2648 render_manager_.SetIsLoading(is_loading); 2649 2650 is_loading_ = is_loading; 2651 waiting_for_response_ = is_loading; 2652 2653 if (delegate_) 2654 delegate_->LoadingStateChanged(this); 2655 NotifyNavigationStateChanged(INVALIDATE_TYPE_LOAD); 2656 2657 if (is_loading) 2658 TRACE_EVENT_ASYNC_BEGIN0("browser", "WebContentsImpl Loading", this); 2659 else 2660 TRACE_EVENT_ASYNC_END0("browser", "WebContentsImpl Loading", this); 2661 int type = is_loading ? NOTIFICATION_LOAD_START : NOTIFICATION_LOAD_STOP; 2662 NotificationDetails det = NotificationService::NoDetails(); 2663 if (details) 2664 det = Details<LoadNotificationDetails>(details); 2665 NotificationService::current()->Notify( 2666 type, Source<NavigationController>(&controller_), det); 2667} 2668 2669void WebContentsImpl::DidNavigateMainFramePostCommit( 2670 const LoadCommittedDetails& details, 2671 const ViewHostMsg_FrameNavigate_Params& params) { 2672 if (details.is_navigation_to_different_page()) { 2673 // Clear the status bubble. This is a workaround for a bug where WebKit 2674 // doesn't let us know that the cursor left an element during a 2675 // transition (this is also why the mouse cursor remains as a hand after 2676 // clicking on a link); see bugs 1184641 and 980803. We don't want to 2677 // clear the bubble when a user navigates to a named anchor in the same 2678 // page. 2679 UpdateTargetURL(details.entry->GetPageID(), GURL()); 2680 } 2681 2682 if (!details.is_in_page) { 2683 // Once the main frame is navigated, we're no longer considered to have 2684 // displayed insecure content. 2685 displayed_insecure_content_ = false; 2686 SSLManager::NotifySSLInternalStateChanged( 2687 GetController().GetBrowserContext()); 2688 } 2689 2690 // Notify observers about navigation. 2691 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2692 DidNavigateMainFrame(details, params)); 2693} 2694 2695void WebContentsImpl::DidNavigateAnyFramePostCommit( 2696 RenderViewHost* render_view_host, 2697 const LoadCommittedDetails& details, 2698 const ViewHostMsg_FrameNavigate_Params& params) { 2699 // If we navigate off the page, close all JavaScript dialogs. 2700 if (dialog_manager_ && !details.is_in_page) 2701 dialog_manager_->CancelActiveAndPendingDialogs(this); 2702 2703 // Notify observers about navigation. 2704 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2705 DidNavigateAnyFrame(details, params)); 2706} 2707 2708bool WebContentsImpl::ShouldAssignSiteForURL(const GURL& url) { 2709 // about:blank should not "use up" a new SiteInstance. The SiteInstance can 2710 // still be used for a normal web site. 2711 if (url == GURL(kAboutBlankURL)) 2712 return false; 2713 2714 // The embedder will then have the opportunity to determine if the URL 2715 // should "use up" the SiteInstance. 2716 return GetContentClient()->browser()->ShouldAssignSiteForURL(url); 2717} 2718 2719void WebContentsImpl::UpdateMaxPageIDIfNecessary(RenderViewHost* rvh) { 2720 // If we are creating a RVH for a restored controller, then we need to make 2721 // sure the RenderView starts with a next_page_id_ larger than the number 2722 // of restored entries. This must be called before the RenderView starts 2723 // navigating (to avoid a race between the browser updating max_page_id and 2724 // the renderer updating next_page_id_). Because of this, we only call this 2725 // from CreateRenderView and allow that to notify the RenderView for us. 2726 int max_restored_page_id = controller_.GetMaxRestoredPageID(); 2727 if (max_restored_page_id > 2728 GetMaxPageIDForSiteInstance(rvh->GetSiteInstance())) 2729 UpdateMaxPageIDForSiteInstance(rvh->GetSiteInstance(), 2730 max_restored_page_id); 2731} 2732 2733bool WebContentsImpl::UpdateTitleForEntry(NavigationEntryImpl* entry, 2734 const string16& title) { 2735 // For file URLs without a title, use the pathname instead. In the case of a 2736 // synthesized title, we don't want the update to count toward the "one set 2737 // per page of the title to history." 2738 string16 final_title; 2739 bool explicit_set; 2740 if (entry && entry->GetURL().SchemeIsFile() && title.empty()) { 2741 final_title = UTF8ToUTF16(entry->GetURL().ExtractFileName()); 2742 explicit_set = false; // Don't count synthetic titles toward the set limit. 2743 } else { 2744 TrimWhitespace(title, TRIM_ALL, &final_title); 2745 explicit_set = true; 2746 } 2747 2748 // If a page is created via window.open and never navigated, 2749 // there will be no navigation entry. In this situation, 2750 // |page_title_when_no_navigation_entry_| will be used for page title. 2751 if (entry) { 2752 if (final_title == entry->GetTitle()) 2753 return false; // Nothing changed, don't bother. 2754 2755 entry->SetTitle(final_title); 2756 } else { 2757 if (page_title_when_no_navigation_entry_ == final_title) 2758 return false; // Nothing changed, don't bother. 2759 2760 page_title_when_no_navigation_entry_ = final_title; 2761 } 2762 2763 // Lastly, set the title for the view. 2764 view_->SetPageTitle(final_title); 2765 2766 std::pair<NavigationEntry*, bool> details = 2767 std::make_pair(entry, explicit_set); 2768 2769 NotificationService::current()->Notify( 2770 NOTIFICATION_WEB_CONTENTS_TITLE_UPDATED, 2771 Source<WebContents>(this), 2772 Details<std::pair<NavigationEntry*, bool> >(&details)); 2773 2774 return true; 2775} 2776 2777void WebContentsImpl::NotifySwapped(RenderViewHost* old_render_view_host) { 2778 // After sending out a swap notification, we need to send a disconnect 2779 // notification so that clients that pick up a pointer to |this| can NULL the 2780 // pointer. See Bug 1230284. 2781 notify_disconnection_ = true; 2782 NotificationService::current()->Notify( 2783 NOTIFICATION_WEB_CONTENTS_SWAPPED, 2784 Source<WebContents>(this), 2785 Details<RenderViewHost>(old_render_view_host)); 2786 2787 // Ensure that the associated embedder gets cleared after a RenderViewHost 2788 // gets swapped, so we don't reuse the same embedder next time a 2789 // RenderViewHost is attached to this WebContents. 2790 RemoveBrowserPluginEmbedder(); 2791} 2792 2793void WebContentsImpl::NotifyConnected() { 2794 notify_disconnection_ = true; 2795 NotificationService::current()->Notify( 2796 NOTIFICATION_WEB_CONTENTS_CONNECTED, 2797 Source<WebContents>(this), 2798 NotificationService::NoDetails()); 2799} 2800 2801void WebContentsImpl::NotifyDisconnected() { 2802 if (!notify_disconnection_) 2803 return; 2804 2805 notify_disconnection_ = false; 2806 NotificationService::current()->Notify( 2807 NOTIFICATION_WEB_CONTENTS_DISCONNECTED, 2808 Source<WebContents>(this), 2809 NotificationService::NoDetails()); 2810} 2811 2812void WebContentsImpl::NotifyNavigationEntryCommitted( 2813 const LoadCommittedDetails& load_details) { 2814 FOR_EACH_OBSERVER( 2815 WebContentsObserver, observers_, NavigationEntryCommitted(load_details)); 2816} 2817 2818RenderViewHostDelegateView* WebContentsImpl::GetDelegateView() { 2819 return render_view_host_delegate_view_; 2820} 2821 2822RenderViewHostDelegate::RendererManagement* 2823WebContentsImpl::GetRendererManagementDelegate() { 2824 return &render_manager_; 2825} 2826 2827RendererPreferences WebContentsImpl::GetRendererPrefs( 2828 BrowserContext* browser_context) const { 2829 return renderer_preferences_; 2830} 2831 2832WebContents* WebContentsImpl::GetAsWebContents() { 2833 return this; 2834} 2835 2836gfx::Rect WebContentsImpl::GetRootWindowResizerRect() const { 2837 if (delegate_) 2838 return delegate_->GetRootWindowResizerRect(); 2839 return gfx::Rect(); 2840} 2841 2842void WebContentsImpl::RemoveBrowserPluginEmbedder() { 2843 if (browser_plugin_embedder_) 2844 browser_plugin_embedder_.reset(); 2845} 2846 2847void WebContentsImpl::RenderViewCreated(RenderViewHost* render_view_host) { 2848 // Don't send notifications if we are just creating a swapped-out RVH for 2849 // the opener chain. These won't be used for view-source or WebUI, so it's 2850 // ok to return early. 2851 if (static_cast<RenderViewHostImpl*>(render_view_host)->is_swapped_out()) 2852 return; 2853 2854 if (delegate_) 2855 view_->SetOverscrollControllerEnabled(delegate_->CanOverscrollContent()); 2856 2857 NotificationService::current()->Notify( 2858 NOTIFICATION_WEB_CONTENTS_RENDER_VIEW_HOST_CREATED, 2859 Source<WebContents>(this), 2860 Details<RenderViewHost>(render_view_host)); 2861 NavigationEntry* entry = controller_.GetActiveEntry(); 2862 if (!entry) 2863 return; 2864 2865 // When we're creating views, we're still doing initial setup, so we always 2866 // use the pending Web UI rather than any possibly existing committed one. 2867 if (render_manager_.pending_web_ui()) 2868 render_manager_.pending_web_ui()->RenderViewCreated(render_view_host); 2869 2870 if (entry->IsViewSourceMode()) { 2871 // Put the renderer in view source mode. 2872 render_view_host->Send( 2873 new ViewMsg_EnableViewSourceMode(render_view_host->GetRoutingID())); 2874 } 2875 2876 view_->RenderViewCreated(render_view_host); 2877 2878 FOR_EACH_OBSERVER( 2879 WebContentsObserver, observers_, RenderViewCreated(render_view_host)); 2880} 2881 2882void WebContentsImpl::RenderViewReady(RenderViewHost* rvh) { 2883 if (rvh != GetRenderViewHost()) { 2884 // Don't notify the world, since this came from a renderer in the 2885 // background. 2886 return; 2887 } 2888 2889 NotifyConnected(); 2890 bool was_crashed = IsCrashed(); 2891 SetIsCrashed(base::TERMINATION_STATUS_STILL_RUNNING, 0); 2892 2893 // Restore the focus to the tab (otherwise the focus will be on the top 2894 // window). 2895 if (was_crashed && !FocusLocationBarByDefault() && 2896 (!delegate_ || delegate_->ShouldFocusPageAfterCrash())) { 2897 view_->Focus(); 2898 } 2899 2900 FOR_EACH_OBSERVER(WebContentsObserver, observers_, RenderViewReady()); 2901} 2902 2903void WebContentsImpl::RenderViewTerminated(RenderViewHost* rvh, 2904 base::TerminationStatus status, 2905 int error_code) { 2906 if (rvh != GetRenderViewHost()) { 2907 // The pending page's RenderViewHost is gone. 2908 return; 2909 } 2910 2911 ClearPowerSaveBlockers(rvh); 2912 SetIsLoading(false, NULL); 2913 NotifyDisconnected(); 2914 SetIsCrashed(status, error_code); 2915 GetView()->OnTabCrashed(GetCrashedStatus(), crashed_error_code_); 2916 2917 FOR_EACH_OBSERVER(WebContentsObserver, 2918 observers_, 2919 RenderProcessGone(GetCrashedStatus())); 2920} 2921 2922void WebContentsImpl::RenderViewDeleted(RenderViewHost* rvh) { 2923 ClearPowerSaveBlockers(rvh); 2924 render_manager_.RenderViewDeleted(rvh); 2925 FOR_EACH_OBSERVER(WebContentsObserver, observers_, RenderViewDeleted(rvh)); 2926} 2927 2928void WebContentsImpl::DidNavigate( 2929 RenderViewHost* rvh, 2930 const ViewHostMsg_FrameNavigate_Params& params) { 2931 // If we don't have a frame tree root yet, this is the first navigation in 2932 // using the current RenderViewHost, so we need to create it with the proper 2933 // frame id. 2934 if (!frame_tree_root_.get()) { 2935 DCHECK(PageTransitionIsMainFrame(params.transition)); 2936 frame_tree_root_.reset(new FrameTreeNode(params.frame_id, std::string())); 2937 } 2938 2939 if (PageTransitionIsMainFrame(params.transition)) { 2940 // When overscroll navigation gesture is enabled, a screenshot of the page 2941 // in its current state is taken so that it can be used during the 2942 // nav-gesture. It is necessary to take the screenshot here, before calling 2943 // RenderViewHostManager::DidNavigateMainFrame, because that can change 2944 // WebContents::GetRenderViewHost to return the new host, instead of the one 2945 // that may have just been swapped out. 2946 if (delegate_ && delegate_->CanOverscrollContent()) 2947 controller_.TakeScreenshot(); 2948 2949 render_manager_.DidNavigateMainFrame(rvh); 2950 } 2951 2952 // We expect to have a valid frame tree root node at all times when 2953 // navigating. 2954 DCHECK(frame_tree_root_.get()); 2955 2956 // Update the site of the SiteInstance if it doesn't have one yet, unless 2957 // assigning a site is not necessary for this URL. In that case, the 2958 // SiteInstance can still be considered unused until a navigation to a real 2959 // page. 2960 if (!static_cast<SiteInstanceImpl*>(GetSiteInstance())->HasSite() && 2961 ShouldAssignSiteForURL(params.url)) { 2962 static_cast<SiteInstanceImpl*>(GetSiteInstance())->SetSite(params.url); 2963 } 2964 2965 // Need to update MIME type here because it's referred to in 2966 // UpdateNavigationCommands() called by RendererDidNavigate() to 2967 // determine whether or not to enable the encoding menu. 2968 // It's updated only for the main frame. For a subframe, 2969 // RenderView::UpdateURL does not set params.contents_mime_type. 2970 // (see http://code.google.com/p/chromium/issues/detail?id=2929 ) 2971 // TODO(jungshik): Add a test for the encoding menu to avoid 2972 // regressing it again. 2973 if (PageTransitionIsMainFrame(params.transition)) 2974 contents_mime_type_ = params.contents_mime_type; 2975 2976 LoadCommittedDetails details; 2977 bool did_navigate = controller_.RendererDidNavigate(params, &details); 2978 2979 // For now, keep track of each frame's URL in its FrameTreeNode. This lets 2980 // us estimate our process count for implementing OOP iframes. 2981 // TODO(creis): Remove this when we track which pages commit in each frame. 2982 FrameTreeNode* node = FindFrameTreeNodeByID(params.frame_id); 2983 if (node) 2984 node->set_current_url(params.url); 2985 2986 // Send notification about committed provisional loads. This notification is 2987 // different from the NAV_ENTRY_COMMITTED notification which doesn't include 2988 // the actual URL navigated to and isn't sent for AUTO_SUBFRAME navigations. 2989 if (details.type != NAVIGATION_TYPE_NAV_IGNORE) { 2990 // For AUTO_SUBFRAME navigations, an event for the main frame is generated 2991 // that is not recorded in the navigation history. For the purpose of 2992 // tracking navigation events, we treat this event as a sub frame navigation 2993 // event. 2994 bool is_main_frame = did_navigate ? details.is_main_frame : false; 2995 PageTransition transition_type = params.transition; 2996 // Whether or not a page transition was triggered by going backward or 2997 // forward in the history is only stored in the navigation controller's 2998 // entry list. 2999 if (did_navigate && 3000 (controller_.GetActiveEntry()->GetTransitionType() & 3001 PAGE_TRANSITION_FORWARD_BACK)) { 3002 transition_type = PageTransitionFromInt( 3003 params.transition | PAGE_TRANSITION_FORWARD_BACK); 3004 } 3005 // Notify observers about the commit of the provisional load. 3006 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 3007 DidCommitProvisionalLoadForFrame(params.frame_id, 3008 is_main_frame, params.url, transition_type, rvh)); 3009 } 3010 3011 if (!did_navigate) 3012 return; // No navigation happened. 3013 3014 // DO NOT ADD MORE STUFF TO THIS FUNCTION! Your component should either listen 3015 // for the appropriate notification (best) or you can add it to 3016 // DidNavigateMainFramePostCommit / DidNavigateAnyFramePostCommit (only if 3017 // necessary, please). 3018 3019 // Run post-commit tasks. 3020 if (details.is_main_frame) { 3021 DidNavigateMainFramePostCommit(details, params); 3022 if (delegate_) { 3023 delegate_->DidNavigateMainFramePostCommit(this); 3024 view_->SetOverscrollControllerEnabled(delegate_->CanOverscrollContent()); 3025 } 3026 } 3027 DidNavigateAnyFramePostCommit(rvh, details, params); 3028} 3029 3030void WebContentsImpl::UpdateState(RenderViewHost* rvh, 3031 int32 page_id, 3032 const PageState& page_state) { 3033 // Ensure that this state update comes from either the active RVH or one of 3034 // the swapped out RVHs. We don't expect to hear from any other RVHs. 3035 DCHECK(rvh == GetRenderViewHost() || render_manager_.IsOnSwappedOutList(rvh)); 3036 3037 // We must be prepared to handle state updates for any page, these occur 3038 // when the user is scrolling and entering form data, as well as when we're 3039 // leaving a page, in which case our state may have already been moved to 3040 // the next page. The navigation controller will look up the appropriate 3041 // NavigationEntry and update it when it is notified via the delegate. 3042 3043 int entry_index = controller_.GetEntryIndexWithPageID( 3044 rvh->GetSiteInstance(), page_id); 3045 if (entry_index < 0) 3046 return; 3047 NavigationEntry* entry = controller_.GetEntryAtIndex(entry_index); 3048 3049 if (page_state == entry->GetPageState()) 3050 return; // Nothing to update. 3051 entry->SetPageState(page_state); 3052 controller_.NotifyEntryChanged(entry, entry_index); 3053} 3054 3055void WebContentsImpl::UpdateTitle(RenderViewHost* rvh, 3056 int32 page_id, 3057 const string16& title, 3058 base::i18n::TextDirection title_direction) { 3059 // If we have a title, that's a pretty good indication that we've started 3060 // getting useful data. 3061 SetNotWaitingForResponse(); 3062 3063 // Try to find the navigation entry, which might not be the current one. 3064 // For example, it might be from a pending RVH for the pending entry. 3065 NavigationEntryImpl* entry = controller_.GetEntryWithPageID( 3066 rvh->GetSiteInstance(), page_id); 3067 3068 // We can handle title updates when we don't have an entry in 3069 // UpdateTitleForEntry, but only if the update is from the current RVH. 3070 if (!entry && rvh != GetRenderViewHost()) 3071 return; 3072 3073 // TODO(evan): make use of title_direction. 3074 // http://code.google.com/p/chromium/issues/detail?id=27094 3075 if (!UpdateTitleForEntry(entry, title)) 3076 return; 3077 3078 // Broadcast notifications when the UI should be updated. 3079 if (entry == controller_.GetEntryAtOffset(0)) 3080 NotifyNavigationStateChanged(INVALIDATE_TYPE_TITLE); 3081} 3082 3083void WebContentsImpl::UpdateEncoding(RenderViewHost* render_view_host, 3084 const std::string& encoding) { 3085 SetEncoding(encoding); 3086} 3087 3088void WebContentsImpl::UpdateTargetURL(int32 page_id, const GURL& url) { 3089 if (delegate_) 3090 delegate_->UpdateTargetURL(this, page_id, url); 3091} 3092 3093void WebContentsImpl::Close(RenderViewHost* rvh) { 3094#if defined(OS_MACOSX) 3095 // The UI may be in an event-tracking loop, such as between the 3096 // mouse-down and mouse-up in text selection or a button click. 3097 // Defer the close until after tracking is complete, so that we 3098 // don't free objects out from under the UI. 3099 // TODO(shess): This could get more fine-grained. For instance, 3100 // closing a tab in another window while selecting text in the 3101 // current window's Omnibox should be just fine. 3102 if (view_->IsEventTracking()) { 3103 view_->CloseTabAfterEventTracking(); 3104 return; 3105 } 3106#endif 3107 3108 // Ignore this if it comes from a RenderViewHost that we aren't showing. 3109 if (delegate_ && rvh == GetRenderViewHost()) 3110 delegate_->CloseContents(this); 3111} 3112 3113void WebContentsImpl::SwappedOut(RenderViewHost* rvh) { 3114 if (delegate_ && rvh == GetRenderViewHost()) 3115 delegate_->SwappedOut(this); 3116 3117 // Allow the navigation to proceed. 3118 render_manager_.SwappedOut(rvh); 3119} 3120 3121void WebContentsImpl::RequestMove(const gfx::Rect& new_bounds) { 3122 if (delegate_ && delegate_->IsPopupOrPanel(this)) 3123 delegate_->MoveContents(this, new_bounds); 3124} 3125 3126void WebContentsImpl::DidStartLoading(RenderViewHost* render_view_host) { 3127 SetIsLoading(true, NULL); 3128 3129 // Notify observers about navigation. 3130 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 3131 DidStartLoading(render_view_host)); 3132} 3133 3134void WebContentsImpl::DidStopLoading(RenderViewHost* render_view_host) { 3135 scoped_ptr<LoadNotificationDetails> details; 3136 3137 // Use the last committed entry rather than the active one, in case a 3138 // pending entry has been created. 3139 NavigationEntry* entry = controller_.GetLastCommittedEntry(); 3140 3141 // An entry may not exist for a stop when loading an initial blank page or 3142 // if an iframe injected by script into a blank page finishes loading. 3143 if (entry) { 3144 base::TimeDelta elapsed = base::TimeTicks::Now() - current_load_start_; 3145 3146 details.reset(new LoadNotificationDetails( 3147 entry->GetVirtualURL(), 3148 entry->GetTransitionType(), 3149 elapsed, 3150 &controller_, 3151 controller_.GetCurrentEntryIndex())); 3152 } 3153 3154 SetIsLoading(false, details.get()); 3155 3156 // Notify observers about navigation. 3157 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 3158 DidStopLoading(render_view_host)); 3159} 3160 3161void WebContentsImpl::DidCancelLoading() { 3162 controller_.DiscardNonCommittedEntries(); 3163 3164 // Update the URL display. 3165 NotifyNavigationStateChanged(INVALIDATE_TYPE_URL); 3166} 3167 3168void WebContentsImpl::DidChangeLoadProgress(double progress) { 3169#if defined(OS_ANDROID) 3170 if (delegate_) 3171 delegate_->LoadProgressChanged(this, progress); 3172#endif 3173} 3174 3175void WebContentsImpl::DidDisownOpener(RenderViewHost* rvh) { 3176 if (opener_) { 3177 // Clear our opener so that future cross-process navigations don't have an 3178 // opener assigned. 3179 RemoveDestructionObserver(opener_); 3180 opener_ = NULL; 3181 } 3182 3183 // Notify all swapped out RenderViewHosts for this tab. This is important 3184 // in case we go back to them, or if another window in those processes tries 3185 // to access window.opener. 3186 render_manager_.DidDisownOpener(rvh); 3187} 3188 3189void WebContentsImpl::DidAccessInitialDocument() { 3190 // Update the URL display. 3191 NotifyNavigationStateChanged(content::INVALIDATE_TYPE_URL); 3192} 3193 3194void WebContentsImpl::DocumentAvailableInMainFrame( 3195 RenderViewHost* render_view_host) { 3196 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 3197 DocumentAvailableInMainFrame()); 3198} 3199 3200void WebContentsImpl::DocumentOnLoadCompletedInMainFrame( 3201 RenderViewHost* render_view_host, 3202 int32 page_id) { 3203 NotificationService::current()->Notify( 3204 NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME, 3205 Source<WebContents>(this), 3206 Details<int>(&page_id)); 3207} 3208 3209void WebContentsImpl::RequestOpenURL(RenderViewHost* rvh, 3210 const GURL& url, 3211 const Referrer& referrer, 3212 WindowOpenDisposition disposition, 3213 int64 source_frame_id, 3214 bool should_replace_current_entry, 3215 bool user_gesture) { 3216 // If this came from a swapped out RenderViewHost, we only allow the request 3217 // if we are still in the same BrowsingInstance. 3218 if (static_cast<RenderViewHostImpl*>(rvh)->is_swapped_out() && 3219 !rvh->GetSiteInstance()->IsRelatedSiteInstance(GetSiteInstance())) { 3220 return; 3221 } 3222 3223 // Delegate to RequestTransferURL because this is just the generic 3224 // case where |old_request_id| is empty. 3225 RequestTransferURL(url, referrer, disposition, source_frame_id, 3226 GlobalRequestID(), 3227 should_replace_current_entry, user_gesture); 3228} 3229 3230void WebContentsImpl::RequestTransferURL( 3231 const GURL& url, 3232 const Referrer& referrer, 3233 WindowOpenDisposition disposition, 3234 int64 source_frame_id, 3235 const GlobalRequestID& old_request_id, 3236 bool should_replace_current_entry, 3237 bool user_gesture) { 3238 WebContents* new_contents = NULL; 3239 PageTransition transition_type = PAGE_TRANSITION_LINK; 3240 if (render_manager_.web_ui()) { 3241 // When we're a Web UI, it will provide a page transition type for us (this 3242 // is so the new tab page can specify AUTO_BOOKMARK for automatically 3243 // generated suggestions). 3244 // 3245 // Note also that we hide the referrer for Web UI pages. We don't really 3246 // want web sites to see a referrer of "chrome://blah" (and some 3247 // chrome: URLs might have search terms or other stuff we don't want to 3248 // send to the site), so we send no referrer. 3249 OpenURLParams params(url, Referrer(), source_frame_id, disposition, 3250 render_manager_.web_ui()->GetLinkTransitionType(), 3251 false /* is_renderer_initiated */); 3252 params.transferred_global_request_id = old_request_id; 3253 new_contents = OpenURL(params); 3254 transition_type = render_manager_.web_ui()->GetLinkTransitionType(); 3255 } else { 3256 OpenURLParams params(url, referrer, source_frame_id, disposition, 3257 PAGE_TRANSITION_LINK, true /* is_renderer_initiated */); 3258 params.transferred_global_request_id = old_request_id; 3259 params.should_replace_current_entry = should_replace_current_entry; 3260 params.user_gesture = user_gesture; 3261 new_contents = OpenURL(params); 3262 } 3263 if (new_contents) { 3264 // Notify observers. 3265 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 3266 DidOpenRequestedURL(new_contents, 3267 url, 3268 referrer, 3269 disposition, 3270 transition_type, 3271 source_frame_id)); 3272 } 3273} 3274 3275void WebContentsImpl::RouteCloseEvent(RenderViewHost* rvh) { 3276 // Tell the active RenderViewHost to run unload handlers and close, as long 3277 // as the request came from a RenderViewHost in the same BrowsingInstance. 3278 // In most cases, we receive this from a swapped out RenderViewHost. 3279 // It is possible to receive it from one that has just been swapped in, 3280 // in which case we might as well deliver the message anyway. 3281 if (rvh->GetSiteInstance()->IsRelatedSiteInstance(GetSiteInstance())) 3282 GetRenderViewHost()->ClosePage(); 3283} 3284 3285void WebContentsImpl::RouteMessageEvent( 3286 RenderViewHost* rvh, 3287 const ViewMsg_PostMessage_Params& params) { 3288 // Only deliver the message to the active RenderViewHost if the request 3289 // came from a RenderViewHost in the same BrowsingInstance or if this 3290 // WebContents is dedicated to a browser plugin guest. 3291 // Note: This check means that an embedder could theoretically receive a 3292 // postMessage from anyone (not just its own guests). However, this is 3293 // probably not a risk for apps since other pages won't have references 3294 // to App windows. 3295 if (!rvh->GetSiteInstance()->IsRelatedSiteInstance(GetSiteInstance()) && 3296 !GetBrowserPluginGuest() && !GetBrowserPluginEmbedder()) 3297 return; 3298 3299 ViewMsg_PostMessage_Params new_params(params); 3300 3301 // If there is a source_routing_id, translate it to the routing ID for 3302 // the equivalent swapped out RVH in the target process. If we need 3303 // to create a swapped out RVH for the source tab, we create its opener 3304 // chain as well, since those will also be accessible to the target page. 3305 if (new_params.source_routing_id != MSG_ROUTING_NONE) { 3306 // Try to look up the WebContents for the source page. 3307 WebContentsImpl* source_contents = NULL; 3308 RenderViewHostImpl* source_rvh = RenderViewHostImpl::FromID( 3309 rvh->GetProcess()->GetID(), params.source_routing_id); 3310 if (source_rvh) { 3311 source_contents = static_cast<WebContentsImpl*>( 3312 source_rvh->GetDelegate()->GetAsWebContents()); 3313 } 3314 3315 if (source_contents) { 3316 if (GetBrowserPluginGuest()) { 3317 // We create a swapped out RenderView for the embedder in the guest's 3318 // render process but we intentionally do not expose the embedder's 3319 // opener chain to it. 3320 new_params.source_routing_id = 3321 source_contents->CreateSwappedOutRenderView(GetSiteInstance()); 3322 } else { 3323 new_params.source_routing_id = 3324 source_contents->CreateOpenerRenderViews(GetSiteInstance()); 3325 } 3326 } else { 3327 // We couldn't find it, so don't pass a source frame. 3328 new_params.source_routing_id = MSG_ROUTING_NONE; 3329 } 3330 } 3331 3332 // In most cases, we receive this from a swapped out RenderViewHost. 3333 // It is possible to receive it from one that has just been swapped in, 3334 // in which case we might as well deliver the message anyway. 3335 Send(new ViewMsg_PostMessageEvent(GetRoutingID(), new_params)); 3336} 3337 3338void WebContentsImpl::RunJavaScriptMessage( 3339 RenderViewHost* rvh, 3340 const string16& message, 3341 const string16& default_prompt, 3342 const GURL& frame_url, 3343 JavaScriptMessageType javascript_message_type, 3344 IPC::Message* reply_msg, 3345 bool* did_suppress_message) { 3346 // Suppress JavaScript dialogs when requested. Also suppress messages when 3347 // showing an interstitial as it's shown over the previous page and we don't 3348 // want the hidden page's dialogs to interfere with the interstitial. 3349 bool suppress_this_message = 3350 static_cast<RenderViewHostImpl*>(rvh)->is_swapped_out() || 3351 ShowingInterstitialPage() || 3352 !delegate_ || 3353 delegate_->ShouldSuppressDialogs() || 3354 !delegate_->GetJavaScriptDialogManager(); 3355 3356 if (!suppress_this_message) { 3357 std::string accept_lang = GetContentClient()->browser()-> 3358 GetAcceptLangs(GetBrowserContext()); 3359 dialog_manager_ = delegate_->GetJavaScriptDialogManager(); 3360 dialog_manager_->RunJavaScriptDialog( 3361 this, 3362 frame_url.GetOrigin(), 3363 accept_lang, 3364 javascript_message_type, 3365 message, 3366 default_prompt, 3367 base::Bind(&WebContentsImpl::OnDialogClosed, 3368 base::Unretained(this), 3369 rvh, 3370 reply_msg), 3371 &suppress_this_message); 3372 } 3373 3374 if (suppress_this_message) { 3375 // If we are suppressing messages, just reply as if the user immediately 3376 // pressed "Cancel". 3377 OnDialogClosed(rvh, reply_msg, false, string16()); 3378 } 3379 3380 *did_suppress_message = suppress_this_message; 3381} 3382 3383void WebContentsImpl::RunBeforeUnloadConfirm(RenderViewHost* rvh, 3384 const string16& message, 3385 bool is_reload, 3386 IPC::Message* reply_msg) { 3387 RenderViewHostImpl* rvhi = static_cast<RenderViewHostImpl*>(rvh); 3388 if (delegate_) 3389 delegate_->WillRunBeforeUnloadConfirm(); 3390 3391 bool suppress_this_message = 3392 rvhi->is_swapped_out() || 3393 !delegate_ || 3394 delegate_->ShouldSuppressDialogs() || 3395 !delegate_->GetJavaScriptDialogManager(); 3396 if (suppress_this_message) { 3397 // The reply must be sent to the RVH that sent the request. 3398 rvhi->JavaScriptDialogClosed(reply_msg, true, string16()); 3399 return; 3400 } 3401 3402 is_showing_before_unload_dialog_ = true; 3403 dialog_manager_ = delegate_->GetJavaScriptDialogManager(); 3404 dialog_manager_->RunBeforeUnloadDialog( 3405 this, message, is_reload, 3406 base::Bind(&WebContentsImpl::OnDialogClosed, base::Unretained(this), rvh, 3407 reply_msg)); 3408} 3409 3410bool WebContentsImpl::AddMessageToConsole(int32 level, 3411 const string16& message, 3412 int32 line_no, 3413 const string16& source_id) { 3414 if (!delegate_) 3415 return false; 3416 return delegate_->AddMessageToConsole(this, level, message, line_no, 3417 source_id); 3418} 3419 3420WebPreferences WebContentsImpl::GetWebkitPrefs() { 3421 // We want to base the page config off of the real URL, rather than the 3422 // display URL. 3423 GURL url = controller_.GetActiveEntry() 3424 ? controller_.GetActiveEntry()->GetURL() : GURL::EmptyGURL(); 3425 return GetWebkitPrefs(GetRenderViewHost(), url); 3426} 3427 3428int WebContentsImpl::CreateSwappedOutRenderView( 3429 SiteInstance* instance) { 3430 return render_manager_.CreateRenderView(instance, MSG_ROUTING_NONE, true); 3431} 3432 3433void WebContentsImpl::OnUserGesture() { 3434 // Notify observers. 3435 FOR_EACH_OBSERVER(WebContentsObserver, observers_, DidGetUserGesture()); 3436 3437 ResourceDispatcherHostImpl* rdh = ResourceDispatcherHostImpl::Get(); 3438 if (rdh) // NULL in unittests. 3439 rdh->OnUserGesture(this); 3440} 3441 3442void WebContentsImpl::OnIgnoredUIEvent() { 3443 // Notify observers. 3444 FOR_EACH_OBSERVER(WebContentsObserver, observers_, DidGetIgnoredUIEvent()); 3445} 3446 3447void WebContentsImpl::RendererUnresponsive(RenderViewHost* rvh, 3448 bool is_during_unload) { 3449 // Don't show hung renderer dialog for a swapped out RVH. 3450 if (rvh != GetRenderViewHost()) 3451 return; 3452 3453 RenderViewHostImpl* rvhi = static_cast<RenderViewHostImpl*>(rvh); 3454 3455 // Ignore renderer unresponsive event if debugger is attached to the tab 3456 // since the event may be a result of the renderer sitting on a breakpoint. 3457 // See http://crbug.com/65458 3458 if (DevToolsAgentHost::IsDebuggerAttached(this)) 3459 return; 3460 3461 if (is_during_unload) { 3462 // Hang occurred while firing the beforeunload/unload handler. 3463 // Pretend the handler fired so tab closing continues as if it had. 3464 rvhi->set_sudden_termination_allowed(true); 3465 3466 if (!render_manager_.ShouldCloseTabOnUnresponsiveRenderer()) 3467 return; 3468 3469 // If the tab hangs in the beforeunload/unload handler there's really 3470 // nothing we can do to recover. Pretend the unload listeners have 3471 // all fired and close the tab. If the hang is in the beforeunload handler 3472 // then the user will not have the option of cancelling the close. 3473 Close(rvh); 3474 return; 3475 } 3476 3477 if (!GetRenderViewHostImpl() || !GetRenderViewHostImpl()->IsRenderViewLive()) 3478 return; 3479 3480 if (delegate_) 3481 delegate_->RendererUnresponsive(this); 3482} 3483 3484void WebContentsImpl::RendererResponsive(RenderViewHost* render_view_host) { 3485 if (delegate_) 3486 delegate_->RendererResponsive(this); 3487} 3488 3489void WebContentsImpl::LoadStateChanged( 3490 const GURL& url, 3491 const net::LoadStateWithParam& load_state, 3492 uint64 upload_position, 3493 uint64 upload_size) { 3494 load_state_ = load_state; 3495 upload_position_ = upload_position; 3496 upload_size_ = upload_size; 3497 load_state_host_ = net::IDNToUnicode(url.host(), 3498 GetContentClient()->browser()->GetAcceptLangs( 3499 GetBrowserContext())); 3500 if (load_state_.state == net::LOAD_STATE_READING_RESPONSE) 3501 SetNotWaitingForResponse(); 3502 if (IsLoading()) { 3503 NotifyNavigationStateChanged(INVALIDATE_TYPE_LOAD | INVALIDATE_TYPE_TAB); 3504 } 3505} 3506 3507void WebContentsImpl::WorkerCrashed() { 3508 if (delegate_) 3509 delegate_->WorkerCrashed(this); 3510} 3511 3512void WebContentsImpl::BeforeUnloadFiredFromRenderManager( 3513 bool proceed, const base::TimeTicks& proceed_time, 3514 bool* proceed_to_fire_unload) { 3515 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 3516 BeforeUnloadFired(proceed_time)); 3517 if (delegate_) 3518 delegate_->BeforeUnloadFired(this, proceed, proceed_to_fire_unload); 3519 // Note: |this| might be deleted at this point. 3520} 3521 3522void WebContentsImpl::RenderProcessGoneFromRenderManager( 3523 RenderViewHost* render_view_host) { 3524 DCHECK(crashed_status_ != base::TERMINATION_STATUS_STILL_RUNNING); 3525 RenderViewTerminated(render_view_host, crashed_status_, crashed_error_code_); 3526} 3527 3528void WebContentsImpl::UpdateRenderViewSizeForRenderManager() { 3529 // TODO(brettw) this is a hack. See WebContentsView::SizeContents. 3530 gfx::Size size = view_->GetContainerSize(); 3531 // 0x0 isn't a valid window size (minimal window size is 1x1) but it may be 3532 // here during container initialization and normal window size will be set 3533 // later. In case of tab duplication this resizing to 0x0 prevents setting 3534 // normal size later so just ignore it. 3535 if (!size.IsEmpty()) 3536 view_->SizeContents(size); 3537} 3538 3539void WebContentsImpl::NotifySwappedFromRenderManager(RenderViewHost* rvh) { 3540 NotifySwapped(rvh); 3541 3542 // Make sure the visible RVH reflects the new delegate's preferences. 3543 if (delegate_) 3544 view_->SetOverscrollControllerEnabled(delegate_->CanOverscrollContent()); 3545 3546 view_->RenderViewSwappedIn(render_manager_.current_host()); 3547 3548 FrameTreeNode* root = NULL; 3549 RenderViewHostImpl* new_rvh = static_cast<RenderViewHostImpl*>( 3550 render_manager_.current_host()); 3551 3552 // We are doing a cross-site navigation and swapping processes. Since frame 3553 // ids are unique to a process, we need to recreate the frame tree with the 3554 // proper main frame id. 3555 // Note that it is possible for this method to be called before the new RVH 3556 // has committed a navigation (if RenderViewHostManager short-circuits the 3557 // CommitPending call because the current RVH is dead). In that case, we 3558 // haven't heard a valid frame id to use to initialize the root node, so clear 3559 // out the root node and the first subsequent navigation message will set it 3560 // correctly. 3561 if (new_rvh->main_frame_id() != -1) 3562 root = new FrameTreeNode(new_rvh->main_frame_id(), std::string()); 3563 3564 frame_tree_root_.reset(root); 3565} 3566 3567int WebContentsImpl::CreateOpenerRenderViewsForRenderManager( 3568 SiteInstance* instance) { 3569 if (!opener_) 3570 return MSG_ROUTING_NONE; 3571 3572 // Recursively create RenderViews for anything else in the opener chain. 3573 return opener_->CreateOpenerRenderViews(instance); 3574} 3575 3576int WebContentsImpl::CreateOpenerRenderViews(SiteInstance* instance) { 3577 int opener_route_id = MSG_ROUTING_NONE; 3578 3579 // If this tab has an opener, ensure it has a RenderView in the given 3580 // SiteInstance as well. 3581 if (opener_) 3582 opener_route_id = opener_->CreateOpenerRenderViews(instance); 3583 3584 // If any of the renderers (current, pending, or swapped out) for this 3585 // WebContents has the same SiteInstance, use it. 3586 if (render_manager_.current_host()->GetSiteInstance() == instance) 3587 return render_manager_.current_host()->GetRoutingID(); 3588 3589 if (render_manager_.pending_render_view_host() && 3590 render_manager_.pending_render_view_host()->GetSiteInstance() == instance) 3591 return render_manager_.pending_render_view_host()->GetRoutingID(); 3592 3593 RenderViewHostImpl* rvh = render_manager_.GetSwappedOutRenderViewHost( 3594 instance); 3595 if (rvh) 3596 return rvh->GetRoutingID(); 3597 3598 // Create a swapped out RenderView in the given SiteInstance if none exists, 3599 // setting its opener to the given route_id. Return the new view's route_id. 3600 return render_manager_.CreateRenderView(instance, opener_route_id, true); 3601} 3602 3603NavigationControllerImpl& WebContentsImpl::GetControllerForRenderManager() { 3604 return GetController(); 3605} 3606 3607WebUIImpl* WebContentsImpl::CreateWebUIForRenderManager(const GURL& url) { 3608 return static_cast<WebUIImpl*>(CreateWebUI(url)); 3609} 3610 3611NavigationEntry* 3612 WebContentsImpl::GetLastCommittedNavigationEntryForRenderManager() { 3613 return controller_.GetLastCommittedEntry(); 3614} 3615 3616bool WebContentsImpl::CreateRenderViewForRenderManager( 3617 RenderViewHost* render_view_host, int opener_route_id) { 3618 TRACE_EVENT0("browser", "WebContentsImpl::CreateRenderViewForRenderManager"); 3619 // Can be NULL during tests. 3620 RenderWidgetHostView* rwh_view = view_->CreateViewForWidget(render_view_host); 3621 3622 // Now that the RenderView has been created, we need to tell it its size. 3623 if (rwh_view) 3624 rwh_view->SetSize(view_->GetContainerSize()); 3625 3626 // Make sure we use the correct starting page_id in the new RenderView. 3627 UpdateMaxPageIDIfNecessary(render_view_host); 3628 int32 max_page_id = 3629 GetMaxPageIDForSiteInstance(render_view_host->GetSiteInstance()); 3630 3631 if (!static_cast<RenderViewHostImpl*>( 3632 render_view_host)->CreateRenderView(string16(), 3633 opener_route_id, 3634 max_page_id)) { 3635 return false; 3636 } 3637 3638#if defined(OS_LINUX) || defined(OS_OPENBSD) 3639 // Force a ViewMsg_Resize to be sent, needed to make plugins show up on 3640 // linux. See crbug.com/83941. 3641 if (rwh_view) { 3642 if (RenderWidgetHost* render_widget_host = rwh_view->GetRenderWidgetHost()) 3643 render_widget_host->WasResized(); 3644 } 3645#endif 3646 3647 return true; 3648} 3649 3650void WebContentsImpl::OnDialogClosed(RenderViewHost* rvh, 3651 IPC::Message* reply_msg, 3652 bool success, 3653 const string16& user_input) { 3654 if (is_showing_before_unload_dialog_ && !success) { 3655 // If a beforeunload dialog is canceled, we need to stop the throbber from 3656 // spinning, since we forced it to start spinning in Navigate. 3657 DidStopLoading(rvh); 3658 controller_.DiscardNonCommittedEntries(); 3659 3660 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 3661 BeforeUnloadDialogCancelled()); 3662 } 3663 is_showing_before_unload_dialog_ = false; 3664 static_cast<RenderViewHostImpl*>( 3665 rvh)->JavaScriptDialogClosed(reply_msg, success, user_input); 3666} 3667 3668void WebContentsImpl::SetEncoding(const std::string& encoding) { 3669 encoding_ = GetContentClient()->browser()-> 3670 GetCanonicalEncodingNameByAliasName(encoding); 3671} 3672 3673void WebContentsImpl::CreateViewAndSetSizeForRVH(RenderViewHost* rvh) { 3674 RenderWidgetHostView* rwh_view = view_->CreateViewForWidget(rvh); 3675 // Can be NULL during tests. 3676 if (rwh_view) 3677 rwh_view->SetSize(GetView()->GetContainerSize()); 3678} 3679 3680RenderViewHostImpl* WebContentsImpl::GetRenderViewHostImpl() { 3681 return static_cast<RenderViewHostImpl*>(GetRenderViewHost()); 3682} 3683 3684BrowserPluginGuest* WebContentsImpl::GetBrowserPluginGuest() const { 3685 return browser_plugin_guest_.get(); 3686} 3687 3688void WebContentsImpl::SetBrowserPluginGuest(BrowserPluginGuest* guest) { 3689 CHECK(!browser_plugin_guest_); 3690 browser_plugin_guest_.reset(guest); 3691} 3692 3693BrowserPluginEmbedder* WebContentsImpl::GetBrowserPluginEmbedder() const { 3694 return browser_plugin_embedder_.get(); 3695} 3696 3697BrowserPluginGuestManager* 3698 WebContentsImpl::GetBrowserPluginGuestManager() const { 3699 return static_cast<BrowserPluginGuestManager*>( 3700 GetBrowserContext()->GetUserData( 3701 browser_plugin::kBrowserPluginGuestManagerKeyName)); 3702} 3703 3704void WebContentsImpl::ClearPowerSaveBlockers( 3705 RenderViewHost* render_view_host) { 3706 STLDeleteValues(&power_save_blockers_[render_view_host]); 3707 power_save_blockers_.erase(render_view_host); 3708} 3709 3710void WebContentsImpl::ClearAllPowerSaveBlockers() { 3711 for (PowerSaveBlockerMap::iterator i(power_save_blockers_.begin()); 3712 i != power_save_blockers_.end(); ++i) 3713 STLDeleteValues(&power_save_blockers_[i->first]); 3714 power_save_blockers_.clear(); 3715} 3716 3717} // namespace content 3718