web_contents_impl.cc revision eb525c5499e34cc9c4b825d6d9e75bb07cc06ace
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/metrics/histogram.h" 13#include "base/metrics/stats_counters.h" 14#include "base/strings/string16.h" 15#include "base/strings/string_number_conversions.h" 16#include "base/strings/string_util.h" 17#include "base/strings/utf_string_conversions.h" 18#include "base/sys_info.h" 19#include "base/time/time.h" 20#include "cc/base/switches.h" 21#include "content/browser/browser_plugin/browser_plugin_embedder.h" 22#include "content/browser/browser_plugin/browser_plugin_guest.h" 23#include "content/browser/browser_plugin/browser_plugin_guest_manager.h" 24#include "content/browser/child_process_security_policy_impl.h" 25#include "content/browser/devtools/devtools_manager_impl.h" 26#include "content/browser/dom_storage/dom_storage_context_impl.h" 27#include "content/browser/dom_storage/session_storage_namespace_impl.h" 28#include "content/browser/download/download_stats.h" 29#include "content/browser/download/mhtml_generation_manager.h" 30#include "content/browser/download/save_package.h" 31#include "content/browser/gpu/gpu_data_manager_impl.h" 32#include "content/browser/gpu/gpu_process_host.h" 33#include "content/browser/host_zoom_map_impl.h" 34#include "content/browser/loader/resource_dispatcher_host_impl.h" 35#include "content/browser/renderer_host/render_process_host_impl.h" 36#include "content/browser/renderer_host/render_view_host_impl.h" 37#include "content/browser/renderer_host/render_widget_host_impl.h" 38#include "content/browser/site_instance_impl.h" 39#include "content/browser/web_contents/interstitial_page_impl.h" 40#include "content/browser/web_contents/navigation_entry_impl.h" 41#include "content/browser/web_contents/web_contents_view_guest.h" 42#include "content/browser/webui/generic_handler.h" 43#include "content/browser/webui/web_ui_controller_factory_registry.h" 44#include "content/browser/webui/web_ui_impl.h" 45#include "content/common/browser_plugin/browser_plugin_constants.h" 46#include "content/common/browser_plugin/browser_plugin_messages.h" 47#include "content/common/image_messages.h" 48#include "content/common/ssl_status_serialization.h" 49#include "content/common/view_messages.h" 50#include "content/port/browser/render_view_host_delegate_view.h" 51#include "content/port/browser/render_widget_host_view_port.h" 52#include "content/public/browser/browser_context.h" 53#include "content/public/browser/color_chooser.h" 54#include "content/public/browser/compositor_util.h" 55#include "content/public/browser/content_browser_client.h" 56#include "content/public/browser/devtools_agent_host.h" 57#include "content/public/browser/download_manager.h" 58#include "content/public/browser/download_url_parameters.h" 59#include "content/public/browser/invalidate_type.h" 60#include "content/public/browser/javascript_dialog_manager.h" 61#include "content/public/browser/load_from_memory_cache_details.h" 62#include "content/public/browser/load_notification_details.h" 63#include "content/public/browser/navigation_details.h" 64#include "content/public/browser/notification_details.h" 65#include "content/public/browser/notification_service.h" 66#include "content/public/browser/resource_request_details.h" 67#include "content/public/browser/storage_partition.h" 68#include "content/public/browser/user_metrics.h" 69#include "content/public/browser/web_contents_delegate.h" 70#include "content/public/browser/web_contents_observer.h" 71#include "content/public/browser/web_contents_view.h" 72#include "content/public/common/bindings_policy.h" 73#include "content/public/common/content_constants.h" 74#include "content/public/common/content_restriction.h" 75#include "content/public/common/content_switches.h" 76#include "content/public/common/url_constants.h" 77#include "net/base/mime_util.h" 78#include "net/base/net_util.h" 79#include "net/base/network_change_notifier.h" 80#include "net/url_request/url_request_context_getter.h" 81#include "third_party/WebKit/public/web/WebView.h" 82#include "ui/base/layout.h" 83#include "ui/base/touch/touch_device.h" 84#include "ui/base/ui_base_switches.h" 85#include "ui/gfx/display.h" 86#include "ui/gfx/screen.h" 87#include "ui/gl/gl_switches.h" 88#include "webkit/common/webpreferences.h" 89 90#if defined(OS_ANDROID) 91#include "content/browser/android/date_time_chooser_android.h" 92#include "content/public/browser/android/content_view_core.h" 93#endif 94 95#if defined(OS_MACOSX) 96#include "base/mac/foundation_util.h" 97#include "ui/gl/io_surface_support_mac.h" 98#endif 99 100#if defined(OS_ANDROID) 101#include "content/browser/renderer_host/java/java_bridge_dispatcher_host_manager.h" 102#endif 103 104// Cross-Site Navigations 105// 106// If a WebContentsImpl is told to navigate to a different web site (as 107// determined by SiteInstance), it will replace its current RenderViewHost with 108// a new RenderViewHost dedicated to the new SiteInstance. This works as 109// follows: 110// 111// - Navigate determines whether the destination is cross-site, and if so, 112// it creates a pending_render_view_host_. 113// - The pending RVH is "suspended," so that no navigation messages are sent to 114// its renderer until the onbeforeunload JavaScript handler has a chance to 115// run in the current RVH. 116// - The pending RVH tells CrossSiteRequestManager (a thread-safe singleton) 117// that it has a pending cross-site request. ResourceDispatcherHost will 118// check for this when the response arrives. 119// - The current RVH runs its onbeforeunload handler. If it returns false, we 120// cancel all the pending logic. Otherwise we allow the pending RVH to send 121// the navigation request to its renderer. 122// - ResourceDispatcherHost receives a ResourceRequest on the IO thread for the 123// main resource load on the pending RVH. It checks CrossSiteRequestManager 124// to see that it is a cross-site request, and installs a 125// CrossSiteResourceHandler. 126// - When RDH receives a response, the BufferedResourceHandler determines 127// whether it is a download. If so, it sends a message to the new renderer 128// causing it to cancel the request, and the download proceeds. For now, the 129// pending RVH remains until the next DidNavigate event for this 130// WebContentsImpl. This isn't ideal, but it doesn't affect any functionality. 131// - After RDH receives a response and determines that it is safe and not a 132// download, it pauses the response to first run the old page's onunload 133// handler. It does this by asynchronously calling the OnCrossSiteResponse 134// method of WebContentsImpl on the UI thread, which sends a SwapOut message 135// to the current RVH. 136// - Once the onunload handler is finished, a SwapOut_ACK message is sent to 137// the ResourceDispatcherHost, who unpauses the response. Data is then sent 138// to the pending RVH. 139// - The pending renderer sends a FrameNavigate message that invokes the 140// DidNavigate method. This replaces the current RVH with the 141// pending RVH. 142// - The previous renderer is kept swapped out in RenderViewHostManager in case 143// the user goes back. The process only stays live if another tab is using 144// it, but if so, the existing frame relationships will be maintained. 145 146namespace content { 147namespace { 148 149// Amount of time we wait between when a key event is received and the renderer 150// is queried for its state and pushed to the NavigationEntry. 151const int kQueryStateDelay = 5000; 152 153const int kSyncWaitDelay = 40; 154 155const char kDotGoogleDotCom[] = ".google.com"; 156 157base::LazyInstance<std::vector<WebContents::CreatedCallback> > 158g_created_callbacks = LAZY_INSTANCE_INITIALIZER; 159 160static int StartDownload(content::RenderViewHost* rvh, 161 const GURL& url, 162 bool is_favicon, 163 uint32_t preferred_image_size, 164 uint32_t max_image_size) { 165 static int g_next_image_download_id = 0; 166 rvh->Send(new ImageMsg_DownloadImage(rvh->GetRoutingID(), 167 ++g_next_image_download_id, 168 url, 169 is_favicon, 170 preferred_image_size, 171 max_image_size)); 172 return g_next_image_download_id; 173} 174 175ViewMsg_Navigate_Type::Value GetNavigationType( 176 BrowserContext* browser_context, const NavigationEntryImpl& entry, 177 NavigationController::ReloadType reload_type) { 178 switch (reload_type) { 179 case NavigationControllerImpl::RELOAD: 180 return ViewMsg_Navigate_Type::RELOAD; 181 case NavigationControllerImpl::RELOAD_IGNORING_CACHE: 182 return ViewMsg_Navigate_Type::RELOAD_IGNORING_CACHE; 183 case NavigationControllerImpl::RELOAD_ORIGINAL_REQUEST_URL: 184 return ViewMsg_Navigate_Type::RELOAD_ORIGINAL_REQUEST_URL; 185 case NavigationControllerImpl::NO_RELOAD: 186 break; // Fall through to rest of function. 187 } 188 189 // |RenderViewImpl::PopulateStateFromPendingNavigationParams| differentiates 190 // between |RESTORE_WITH_POST| and |RESTORE|. 191 if (entry.restore_type() == 192 NavigationEntryImpl::RESTORE_LAST_SESSION_EXITED_CLEANLY) { 193 if (entry.GetHasPostData()) 194 return ViewMsg_Navigate_Type::RESTORE_WITH_POST; 195 return ViewMsg_Navigate_Type::RESTORE; 196 } 197 198 return ViewMsg_Navigate_Type::NORMAL; 199} 200 201void MakeNavigateParams(const NavigationEntryImpl& entry, 202 const NavigationControllerImpl& controller, 203 WebContentsDelegate* delegate, 204 NavigationController::ReloadType reload_type, 205 ViewMsg_Navigate_Params* params) { 206 params->page_id = entry.GetPageID(); 207 params->should_clear_history_list = entry.should_clear_history_list(); 208 if (entry.should_clear_history_list()) { 209 // Set the history list related parameters to the same values a 210 // NavigationController would return before its first navigation. This will 211 // fully clear the RenderView's view of the session history. 212 params->pending_history_list_offset = -1; 213 params->current_history_list_offset = -1; 214 params->current_history_list_length = 0; 215 } else { 216 params->pending_history_list_offset = controller.GetIndexOfEntry(&entry); 217 params->current_history_list_offset = 218 controller.GetLastCommittedEntryIndex(); 219 params->current_history_list_length = controller.GetEntryCount(); 220 } 221 if (!entry.GetBaseURLForDataURL().is_empty()) { 222 params->base_url_for_data_url = entry.GetBaseURLForDataURL(); 223 params->history_url_for_data_url = entry.GetVirtualURL(); 224 } 225 params->referrer = entry.GetReferrer(); 226 params->transition = entry.GetTransitionType(); 227 params->page_state = entry.GetPageState(); 228 params->navigation_type = 229 GetNavigationType(controller.GetBrowserContext(), entry, reload_type); 230 params->request_time = base::Time::Now(); 231 params->extra_headers = entry.extra_headers(); 232 params->transferred_request_child_id = 233 entry.transferred_global_request_id().child_id; 234 params->transferred_request_request_id = 235 entry.transferred_global_request_id().request_id; 236 params->is_overriding_user_agent = entry.GetIsOverridingUserAgent(); 237 // Avoid downloading when in view-source mode. 238 params->allow_download = !entry.IsViewSourceMode(); 239 params->is_post = entry.GetHasPostData(); 240 if(entry.GetBrowserInitiatedPostData()) { 241 params->browser_initiated_post_data.assign( 242 entry.GetBrowserInitiatedPostData()->front(), 243 entry.GetBrowserInitiatedPostData()->front() + 244 entry.GetBrowserInitiatedPostData()->size()); 245 246 } 247 248 if (reload_type == NavigationControllerImpl::RELOAD_ORIGINAL_REQUEST_URL && 249 entry.GetOriginalRequestURL().is_valid() && !entry.GetHasPostData()) { 250 // We may have been redirected when navigating to the current URL. 251 // Use the URL the user originally intended to visit, if it's valid and if a 252 // POST wasn't involved; the latter case avoids issues with sending data to 253 // the wrong page. 254 params->url = entry.GetOriginalRequestURL(); 255 } else { 256 params->url = entry.GetURL(); 257 } 258 259 params->can_load_local_resources = entry.GetCanLoadLocalResources(); 260 params->frame_to_navigate = entry.GetFrameToNavigate(); 261 262 if (delegate) 263 delegate->AddNavigationHeaders(params->url, ¶ms->extra_headers); 264} 265 266} // namespace 267 268WebContents* WebContents::Create(const WebContents::CreateParams& params) { 269 return WebContentsImpl::CreateWithOpener(params, NULL); 270} 271 272WebContents* WebContents::CreateWithSessionStorage( 273 const WebContents::CreateParams& params, 274 const SessionStorageNamespaceMap& session_storage_namespace_map) { 275 WebContentsImpl* new_contents = new WebContentsImpl( 276 params.browser_context, NULL); 277 278 for (SessionStorageNamespaceMap::const_iterator it = 279 session_storage_namespace_map.begin(); 280 it != session_storage_namespace_map.end(); 281 ++it) { 282 new_contents->GetController() 283 .SetSessionStorageNamespace(it->first, it->second.get()); 284 } 285 286 new_contents->Init(params); 287 return new_contents; 288} 289 290void WebContents::AddCreatedCallback(const CreatedCallback& callback) { 291 g_created_callbacks.Get().push_back(callback); 292} 293 294void WebContents::RemoveCreatedCallback(const CreatedCallback& callback) { 295 for (size_t i = 0; i < g_created_callbacks.Get().size(); ++i) { 296 if (g_created_callbacks.Get().at(i).Equals(callback)) { 297 g_created_callbacks.Get().erase(g_created_callbacks.Get().begin() + i); 298 return; 299 } 300 } 301} 302 303WebContents* WebContents::FromRenderViewHost(const RenderViewHost* rvh) { 304 return rvh->GetDelegate()->GetAsWebContents(); 305} 306 307// WebContentsImpl::DestructionObserver ---------------------------------------- 308 309class WebContentsImpl::DestructionObserver : public WebContentsObserver { 310 public: 311 DestructionObserver(WebContentsImpl* owner, WebContents* watched_contents) 312 : WebContentsObserver(watched_contents), 313 owner_(owner) { 314 } 315 316 // WebContentsObserver: 317 virtual void WebContentsDestroyed(WebContents* web_contents) OVERRIDE { 318 owner_->OnWebContentsDestroyed(static_cast<WebContentsImpl*>(web_contents)); 319 } 320 321 private: 322 WebContentsImpl* owner_; 323 324 DISALLOW_COPY_AND_ASSIGN(DestructionObserver); 325}; 326 327// WebContentsImpl ------------------------------------------------------------- 328 329WebContentsImpl::WebContentsImpl( 330 BrowserContext* browser_context, 331 WebContentsImpl* opener) 332 : delegate_(NULL), 333 controller_(this, browser_context), 334 render_view_host_delegate_view_(NULL), 335 opener_(opener), 336#if defined(OS_WIN) && defined(USE_AURA) 337 accessible_parent_(NULL), 338#endif 339 render_manager_(this, this, this), 340 is_loading_(false), 341 crashed_status_(base::TERMINATION_STATUS_STILL_RUNNING), 342 crashed_error_code_(0), 343 waiting_for_response_(false), 344 load_state_(net::LOAD_STATE_IDLE, string16()), 345 upload_size_(0), 346 upload_position_(0), 347 displayed_insecure_content_(false), 348 capturer_count_(0), 349 should_normally_be_visible_(true), 350 is_being_destroyed_(false), 351 notify_disconnection_(false), 352 dialog_manager_(NULL), 353 is_showing_before_unload_dialog_(false), 354 closed_by_user_gesture_(false), 355 minimum_zoom_percent_(static_cast<int>(kMinimumZoomFactor * 100)), 356 maximum_zoom_percent_(static_cast<int>(kMaximumZoomFactor * 100)), 357 temporary_zoom_settings_(false), 358 content_restrictions_(0), 359 color_chooser_identifier_(0), 360 message_source_(NULL), 361 fullscreen_widget_routing_id_(MSG_ROUTING_NONE) { 362 for (size_t i = 0; i < g_created_callbacks.Get().size(); i++) 363 g_created_callbacks.Get().at(i).Run(this); 364} 365 366WebContentsImpl::~WebContentsImpl() { 367 is_being_destroyed_ = true; 368 369 for (std::set<RenderWidgetHostImpl*>::iterator iter = 370 created_widgets_.begin(); iter != created_widgets_.end(); ++iter) { 371 (*iter)->DetachDelegate(); 372 } 373 created_widgets_.clear(); 374 375 // Clear out any JavaScript state. 376 if (dialog_manager_) 377 dialog_manager_->ResetJavaScriptState(this); 378 379 if (color_chooser_) 380 color_chooser_->End(); 381 382 NotifyDisconnected(); 383 384 // Notify any observer that have a reference on this WebContents. 385 NotificationService::current()->Notify( 386 NOTIFICATION_WEB_CONTENTS_DESTROYED, 387 Source<WebContents>(this), 388 NotificationService::NoDetails()); 389 390 // TODO(brettw) this should be moved to the view. 391#if defined(OS_WIN) && !defined(USE_AURA) 392 // If we still have a window handle, destroy it. GetNativeView can return 393 // NULL if this contents was part of a window that closed. 394 if (view_->GetNativeView()) { 395 RenderViewHost* host = GetRenderViewHost(); 396 if (host && host->GetView()) 397 RenderWidgetHostViewPort::FromRWHV(host->GetView())->WillWmDestroy(); 398 } 399#endif 400 401 FOR_EACH_OBSERVER(WebContentsObserver, 402 observers_, 403 WebContentsImplDestroyed()); 404 405 SetDelegate(NULL); 406 407 STLDeleteContainerPairSecondPointers(destruction_observers_.begin(), 408 destruction_observers_.end()); 409} 410 411WebContentsImpl* WebContentsImpl::CreateWithOpener( 412 const WebContents::CreateParams& params, 413 WebContentsImpl* opener) { 414 TRACE_EVENT0("browser", "WebContentsImpl::CreateWithOpener"); 415 WebContentsImpl* new_contents = new WebContentsImpl( 416 params.browser_context, opener); 417 418 new_contents->Init(params); 419 return new_contents; 420} 421 422// static 423BrowserPluginGuest* WebContentsImpl::CreateGuest( 424 BrowserContext* browser_context, 425 SiteInstance* site_instance, 426 int guest_instance_id, 427 scoped_ptr<base::DictionaryValue> extra_params) { 428 WebContentsImpl* new_contents = new WebContentsImpl(browser_context, NULL); 429 430 // This makes |new_contents| act as a guest. 431 // For more info, see comment above class BrowserPluginGuest. 432 BrowserPluginGuest::Create( 433 guest_instance_id, new_contents, extra_params.Pass()); 434 435 WebContents::CreateParams create_params(browser_context, site_instance); 436 new_contents->Init(create_params); 437 438 // We are instantiating a WebContents for browser plugin. Set its subframe bit 439 // to true. 440 static_cast<RenderViewHostImpl*>( 441 new_contents->GetRenderViewHost())->set_is_subframe(true); 442 443 return new_contents->browser_plugin_guest_.get(); 444} 445 446WebPreferences WebContentsImpl::GetWebkitPrefs(RenderViewHost* rvh, 447 const GURL& url) { 448 TRACE_EVENT0("browser", "WebContentsImpl::GetWebkitPrefs"); 449 WebPreferences prefs; 450 451 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); 452 453 prefs.javascript_enabled = 454 !command_line.HasSwitch(switches::kDisableJavaScript); 455 prefs.web_security_enabled = 456 !command_line.HasSwitch(switches::kDisableWebSecurity); 457 prefs.plugins_enabled = 458 !command_line.HasSwitch(switches::kDisablePlugins); 459 prefs.java_enabled = 460 !command_line.HasSwitch(switches::kDisableJava); 461 462 prefs.remote_fonts_enabled = 463 !command_line.HasSwitch(switches::kDisableRemoteFonts); 464 prefs.xss_auditor_enabled = 465 !command_line.HasSwitch(switches::kDisableXSSAuditor); 466 prefs.application_cache_enabled = 467 !command_line.HasSwitch(switches::kDisableApplicationCache); 468 469 prefs.local_storage_enabled = 470 !command_line.HasSwitch(switches::kDisableLocalStorage); 471 prefs.databases_enabled = 472 !command_line.HasSwitch(switches::kDisableDatabases); 473 prefs.webaudio_enabled = 474 !command_line.HasSwitch(switches::kDisableWebAudio); 475 476 prefs.experimental_webgl_enabled = 477 GpuProcessHost::gpu_enabled() && 478 !command_line.HasSwitch(switches::kDisable3DAPIs) && 479#if defined(OS_ANDROID) 480 command_line.HasSwitch(switches::kEnableExperimentalWebGL); 481#else 482 !command_line.HasSwitch(switches::kDisableExperimentalWebGL); 483#endif 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::kEnableExperimentalWebKitFeatures); 541 prefs.css_shaders_enabled = 542 command_line.HasSwitch(switches::kEnableCssShaders); 543 prefs.css_grid_layout_enabled = 544 command_line.HasSwitch(switches::kEnableExperimentalWebKitFeatures); 545 prefs.lazy_layout_enabled = 546 command_line.HasSwitch(switches::kEnableExperimentalWebKitFeatures); 547 prefs.region_based_columns_enabled = 548 command_line.HasSwitch(switches::kEnableRegionBasedColumns); 549 prefs.threaded_html_parser = 550 !command_line.HasSwitch(switches::kDisableThreadedHTMLParser); 551 prefs.experimental_websocket_enabled = 552 command_line.HasSwitch(switches::kEnableExperimentalWebSocket); 553 if (command_line.HasSwitch(cc::switches::kEnablePinchVirtualViewport)) { 554 prefs.pinch_virtual_viewport_enabled = true; 555 prefs.pinch_overlay_scrollbar_thickness = 10; 556 } 557 558#if defined(OS_ANDROID) 559 prefs.user_gesture_required_for_media_playback = !command_line.HasSwitch( 560 switches::kDisableGestureRequirementForMediaPlayback); 561#endif 562 563 bool touch_device_present = false; 564 touch_device_present = ui::IsTouchDevicePresent(); 565 const std::string touch_enabled_switch = 566 command_line.HasSwitch(switches::kTouchEvents) ? 567 command_line.GetSwitchValueASCII(switches::kTouchEvents) : 568 switches::kTouchEventsAuto; 569 570 if (touch_enabled_switch.empty() || 571 touch_enabled_switch == switches::kTouchEventsEnabled) { 572 prefs.touch_enabled = true; 573 } else if (touch_enabled_switch == switches::kTouchEventsAuto) { 574 prefs.touch_enabled = touch_device_present; 575 } else if (touch_enabled_switch != switches::kTouchEventsDisabled) { 576 LOG(ERROR) << "Invalid --touch-events option: " << touch_enabled_switch; 577 } 578 579 prefs.device_supports_touch = prefs.touch_enabled && touch_device_present; 580#if defined(OS_ANDROID) 581 prefs.device_supports_mouse = false; 582#endif 583 584 prefs.touch_adjustment_enabled = 585 !command_line.HasSwitch(switches::kDisableTouchAdjustment); 586 587#if defined(OS_MACOSX) || defined(OS_CHROMEOS) 588 bool default_enable_scroll_animator = true; 589#else 590 bool default_enable_scroll_animator = false; 591#endif 592 prefs.enable_scroll_animator = default_enable_scroll_animator; 593 if (command_line.HasSwitch(switches::kEnableSmoothScrolling)) 594 prefs.enable_scroll_animator = true; 595 if (command_line.HasSwitch(switches::kDisableSmoothScrolling)) 596 prefs.enable_scroll_animator = false; 597 598 prefs.visual_word_movement_enabled = 599 command_line.HasSwitch(switches::kEnableVisualWordMovement); 600 601 // Certain GPU features might have been blacklisted. 602 GpuDataManagerImpl::GetInstance()->UpdateRendererWebPrefs(&prefs); 603 604 if (ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings( 605 rvh->GetProcess()->GetID())) { 606 prefs.loads_images_automatically = true; 607 prefs.javascript_enabled = true; 608 } 609 610 prefs.is_online = !net::NetworkChangeNotifier::IsOffline(); 611 612#if !defined(USE_AURA) 613 // Force accelerated compositing and 2d canvas off for chrome: and about: 614 // pages (unless it's specifically allowed). 615 if ((url.SchemeIs(chrome::kChromeUIScheme) || 616 (url.SchemeIs(chrome::kAboutScheme) && 617 url.spec() != kAboutBlankURL)) && 618 !command_line.HasSwitch(switches::kAllowWebUICompositing)) { 619 prefs.accelerated_compositing_enabled = false; 620 prefs.accelerated_2d_canvas_enabled = false; 621 } 622#endif 623 624 prefs.fixed_position_creates_stacking_context = !command_line.HasSwitch( 625 switches::kDisableFixedPositionCreatesStackingContext); 626 627#if defined(OS_CHROMEOS) 628 prefs.gesture_tap_highlight_enabled = !command_line.HasSwitch( 629 switches::kDisableGestureTapHighlight); 630#else 631 prefs.gesture_tap_highlight_enabled = command_line.HasSwitch( 632 switches::kEnableGestureTapHighlight); 633#endif 634 635 prefs.number_of_cpu_cores = base::SysInfo::NumberOfProcessors(); 636 637 prefs.viewport_enabled = command_line.HasSwitch(switches::kEnableViewport); 638 639 prefs.deferred_image_decoding_enabled = 640 command_line.HasSwitch(switches::kEnableDeferredImageDecoding) || 641 cc::switches::IsImplSidePaintingEnabled(); 642 643 prefs.spatial_navigation_enabled = command_line.HasSwitch( 644 switches::kEnableSpatialNavigation); 645 646 GetContentClient()->browser()->OverrideWebkitPrefs(rvh, url, &prefs); 647 648 // Disable compositing in guests until we have compositing path implemented 649 // for guests. 650 bool guest_compositing_enabled = !command_line.HasSwitch( 651 switches::kDisableBrowserPluginCompositing); 652 if (rvh->GetProcess()->IsGuest() && !guest_compositing_enabled) { 653 prefs.force_compositing_mode = false; 654 prefs.accelerated_compositing_enabled = false; 655 } 656 657 return prefs; 658} 659 660RenderViewHostManager* WebContentsImpl::GetRenderManagerForTesting() { 661 return &render_manager_; 662} 663 664bool WebContentsImpl::OnMessageReceived(RenderViewHost* render_view_host, 665 const IPC::Message& message) { 666 if (GetWebUI() && 667 static_cast<WebUIImpl*>(GetWebUI())->OnMessageReceived(message)) { 668 return true; 669 } 670 671 ObserverListBase<WebContentsObserver>::Iterator it(observers_); 672 WebContentsObserver* observer; 673 while ((observer = it.GetNext()) != NULL) 674 if (observer->OnMessageReceived(message)) 675 return true; 676 677 // Message handlers should be aware of which RenderViewHost sent the 678 // message, which is temporarily stored in message_source_. 679 message_source_ = render_view_host; 680 bool handled = true; 681 bool message_is_ok = true; 682 IPC_BEGIN_MESSAGE_MAP_EX(WebContentsImpl, message, message_is_ok) 683 IPC_MESSAGE_HANDLER(ViewHostMsg_DidLoadResourceFromMemoryCache, 684 OnDidLoadResourceFromMemoryCache) 685 IPC_MESSAGE_HANDLER(ViewHostMsg_DidDisplayInsecureContent, 686 OnDidDisplayInsecureContent) 687 IPC_MESSAGE_HANDLER(ViewHostMsg_DidRunInsecureContent, 688 OnDidRunInsecureContent) 689 IPC_MESSAGE_HANDLER(ViewHostMsg_DocumentLoadedInFrame, 690 OnDocumentLoadedInFrame) 691 IPC_MESSAGE_HANDLER(ViewHostMsg_DidFinishLoad, OnDidFinishLoad) 692 IPC_MESSAGE_HANDLER(ViewHostMsg_DidFailLoadWithError, 693 OnDidFailLoadWithError) 694 IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateContentRestrictions, 695 OnUpdateContentRestrictions) 696 IPC_MESSAGE_HANDLER(ViewHostMsg_GoToEntryAtOffset, OnGoToEntryAtOffset) 697 IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateZoomLimits, OnUpdateZoomLimits) 698 IPC_MESSAGE_HANDLER(ViewHostMsg_SaveURLAs, OnSaveURL) 699 IPC_MESSAGE_HANDLER(ViewHostMsg_EnumerateDirectory, OnEnumerateDirectory) 700 IPC_MESSAGE_HANDLER(ViewHostMsg_JSOutOfMemory, OnJSOutOfMemory) 701 IPC_MESSAGE_HANDLER(ViewHostMsg_RegisterProtocolHandler, 702 OnRegisterProtocolHandler) 703 IPC_MESSAGE_HANDLER(ViewHostMsg_Find_Reply, OnFindReply) 704 IPC_MESSAGE_HANDLER(ViewHostMsg_DidProgrammaticallyScroll, 705 OnDidProgrammaticallyScroll) 706 IPC_MESSAGE_HANDLER(ViewHostMsg_CrashedPlugin, OnCrashedPlugin) 707 IPC_MESSAGE_HANDLER(ViewHostMsg_AppCacheAccessed, OnAppCacheAccessed) 708 IPC_MESSAGE_HANDLER(ViewHostMsg_OpenColorChooser, OnOpenColorChooser) 709 IPC_MESSAGE_HANDLER(ViewHostMsg_EndColorChooser, OnEndColorChooser) 710 IPC_MESSAGE_HANDLER(ViewHostMsg_SetSelectedColorInColorChooser, 711 OnSetSelectedColorInColorChooser) 712 IPC_MESSAGE_HANDLER(ViewHostMsg_PepperPluginHung, OnPepperPluginHung) 713 IPC_MESSAGE_HANDLER(ViewHostMsg_WebUISend, OnWebUISend) 714 IPC_MESSAGE_HANDLER(ViewHostMsg_RequestPpapiBrokerPermission, 715 OnRequestPpapiBrokerPermission) 716 IPC_MESSAGE_HANDLER_GENERIC(BrowserPluginHostMsg_AllocateInstanceID, 717 OnBrowserPluginMessage(message)) 718 IPC_MESSAGE_HANDLER_GENERIC(BrowserPluginHostMsg_Attach, 719 OnBrowserPluginMessage(message)) 720 IPC_MESSAGE_HANDLER(ImageHostMsg_DidDownloadImage, OnDidDownloadImage) 721 IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateFaviconURL, OnUpdateFaviconURL) 722#if defined(OS_ANDROID) 723 IPC_MESSAGE_HANDLER(ViewHostMsg_FindMatchRects_Reply, 724 OnFindMatchRectsReply) 725 IPC_MESSAGE_HANDLER(ViewHostMsg_OpenDateTimeDialog, 726 OnOpenDateTimeDialog) 727#endif 728 IPC_MESSAGE_HANDLER(ViewHostMsg_FrameAttached, OnFrameAttached) 729 IPC_MESSAGE_HANDLER(ViewHostMsg_FrameDetached, OnFrameDetached) 730 IPC_MESSAGE_UNHANDLED(handled = false) 731 IPC_END_MESSAGE_MAP_EX() 732 message_source_ = NULL; 733 734 if (!message_is_ok) { 735 RecordAction(UserMetricsAction("BadMessageTerminate_RVD")); 736 GetRenderProcessHost()->ReceivedBadMessage(); 737 } 738 739 return handled; 740} 741 742void WebContentsImpl::RunFileChooser( 743 RenderViewHost* render_view_host, 744 const FileChooserParams& params) { 745 if (delegate_) 746 delegate_->RunFileChooser(this, params); 747} 748 749NavigationControllerImpl& WebContentsImpl::GetController() { 750 return controller_; 751} 752 753const NavigationControllerImpl& WebContentsImpl::GetController() const { 754 return controller_; 755} 756 757BrowserContext* WebContentsImpl::GetBrowserContext() const { 758 return controller_.GetBrowserContext(); 759} 760 761const GURL& WebContentsImpl::GetURL() const { 762 // We may not have a navigation entry yet. 763 NavigationEntry* entry = controller_.GetVisibleEntry(); 764 return entry ? entry->GetVirtualURL() : GURL::EmptyGURL(); 765} 766 767const GURL& WebContentsImpl::GetActiveURL() const { 768 // We may not have a navigation entry yet. 769 NavigationEntry* entry = controller_.GetVisibleEntry(); 770 return entry ? entry->GetVirtualURL() : GURL::EmptyGURL(); 771} 772 773const GURL& WebContentsImpl::GetLastCommittedURL() const { 774 // We may not have a navigation entry yet. 775 NavigationEntry* entry = controller_.GetLastCommittedEntry(); 776 return entry ? entry->GetVirtualURL() : GURL::EmptyGURL(); 777} 778 779WebContentsDelegate* WebContentsImpl::GetDelegate() { 780 return delegate_; 781} 782 783void WebContentsImpl::SetDelegate(WebContentsDelegate* delegate) { 784 // TODO(cbentzel): remove this debugging code? 785 if (delegate == delegate_) 786 return; 787 if (delegate_) 788 delegate_->Detach(this); 789 delegate_ = delegate; 790 if (delegate_) { 791 delegate_->Attach(this); 792 // Ensure the visible RVH reflects the new delegate's preferences. 793 if (view_) 794 view_->SetOverscrollControllerEnabled(delegate->CanOverscrollContent()); 795 } 796} 797 798RenderProcessHost* WebContentsImpl::GetRenderProcessHost() const { 799 RenderViewHostImpl* host = render_manager_.current_host(); 800 return host ? host->GetProcess() : NULL; 801} 802 803RenderViewHost* WebContentsImpl::GetRenderViewHost() const { 804 return render_manager_.current_host(); 805} 806 807void WebContentsImpl::GetRenderViewHostAtPosition( 808 int x, 809 int y, 810 const base::Callback<void(RenderViewHost*, int, int)>& callback) { 811 BrowserPluginEmbedder* embedder = GetBrowserPluginEmbedder(); 812 if (embedder) 813 embedder->GetRenderViewHostAtPosition(x, y, callback); 814 else 815 callback.Run(GetRenderViewHost(), x, y); 816} 817 818WebContents* WebContentsImpl::GetEmbedderWebContents() const { 819 BrowserPluginGuest* guest = GetBrowserPluginGuest(); 820 if (guest) 821 return guest->embedder_web_contents(); 822 return NULL; 823} 824 825int WebContentsImpl::GetEmbeddedInstanceID() const { 826 BrowserPluginGuest* guest = GetBrowserPluginGuest(); 827 if (guest) 828 return guest->instance_id(); 829 return 0; 830} 831 832int WebContentsImpl::GetRoutingID() const { 833 if (!GetRenderViewHost()) 834 return MSG_ROUTING_NONE; 835 836 return GetRenderViewHost()->GetRoutingID(); 837} 838 839int WebContentsImpl::GetFullscreenWidgetRoutingID() const { 840 return fullscreen_widget_routing_id_; 841} 842 843RenderWidgetHostView* WebContentsImpl::GetRenderWidgetHostView() const { 844 return render_manager_.GetRenderWidgetHostView(); 845} 846 847RenderWidgetHostViewPort* WebContentsImpl::GetRenderWidgetHostViewPort() const { 848 BrowserPluginGuest* guest = GetBrowserPluginGuest(); 849 if (guest && guest->embedder_web_contents()) { 850 return guest->embedder_web_contents()->GetRenderWidgetHostViewPort(); 851 } 852 return RenderWidgetHostViewPort::FromRWHV(GetRenderWidgetHostView()); 853} 854 855WebContentsView* WebContentsImpl::GetView() const { 856 return view_.get(); 857} 858 859WebUI* WebContentsImpl::CreateWebUI(const GURL& url) { 860 WebUIImpl* web_ui = new WebUIImpl(this); 861 WebUIController* controller = WebUIControllerFactoryRegistry::GetInstance()-> 862 CreateWebUIControllerForURL(web_ui, url); 863 if (controller) { 864 web_ui->AddMessageHandler(new GenericHandler()); 865 web_ui->SetController(controller); 866 return web_ui; 867 } 868 869 delete web_ui; 870 return NULL; 871} 872 873WebUI* WebContentsImpl::GetWebUI() const { 874 return render_manager_.web_ui() ? render_manager_.web_ui() 875 : render_manager_.pending_web_ui(); 876} 877 878WebUI* WebContentsImpl::GetCommittedWebUI() const { 879 return render_manager_.web_ui(); 880} 881 882void WebContentsImpl::SetUserAgentOverride(const std::string& override) { 883 if (GetUserAgentOverride() == override) 884 return; 885 886 renderer_preferences_.user_agent_override = override; 887 888 // Send the new override string to the renderer. 889 RenderViewHost* host = GetRenderViewHost(); 890 if (host) 891 host->SyncRendererPrefs(); 892 893 // Reload the page if a load is currently in progress to avoid having 894 // different parts of the page loaded using different user agents. 895 NavigationEntry* entry = controller_.GetActiveEntry(); 896 if (is_loading_ && entry != NULL && entry->GetIsOverridingUserAgent()) 897 controller_.ReloadIgnoringCache(true); 898 899 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 900 UserAgentOverrideSet(override)); 901} 902 903const std::string& WebContentsImpl::GetUserAgentOverride() const { 904 return renderer_preferences_.user_agent_override; 905} 906 907#if defined(OS_WIN) && defined(USE_AURA) 908void WebContentsImpl::SetParentNativeViewAccessible( 909gfx::NativeViewAccessible accessible_parent) { 910 accessible_parent_ = accessible_parent; 911 if (GetRenderViewHost()) 912 GetRenderViewHostImpl()->SetParentNativeViewAccessible(accessible_parent); 913} 914#endif 915 916const string16& WebContentsImpl::GetTitle() const { 917 // Transient entries take precedence. They are used for interstitial pages 918 // that are shown on top of existing pages. 919 NavigationEntry* entry = controller_.GetTransientEntry(); 920 std::string accept_languages = 921 GetContentClient()->browser()->GetAcceptLangs( 922 GetBrowserContext()); 923 if (entry) { 924 return entry->GetTitleForDisplay(accept_languages); 925 } 926 WebUI* our_web_ui = render_manager_.pending_web_ui() ? 927 render_manager_.pending_web_ui() : render_manager_.web_ui(); 928 if (our_web_ui) { 929 // Don't override the title in view source mode. 930 entry = controller_.GetVisibleEntry(); 931 if (!(entry && entry->IsViewSourceMode())) { 932 // Give the Web UI the chance to override our title. 933 const string16& title = our_web_ui->GetOverriddenTitle(); 934 if (!title.empty()) 935 return title; 936 } 937 } 938 939 // We use the title for the last committed entry rather than a pending 940 // navigation entry. For example, when the user types in a URL, we want to 941 // keep the old page's title until the new load has committed and we get a new 942 // title. 943 entry = controller_.GetLastCommittedEntry(); 944 945 // We make an exception for initial navigations, because we can have a 946 // committed entry for an initial navigation when doing a history navigation 947 // in a new tab, such as Ctrl+Back. 948 if (entry && controller_.IsInitialNavigation()) 949 entry = controller_.GetVisibleEntry(); 950 951 if (entry) { 952 return entry->GetTitleForDisplay(accept_languages); 953 } 954 955 // |page_title_when_no_navigation_entry_| is finally used 956 // if no title cannot be retrieved. 957 return page_title_when_no_navigation_entry_; 958} 959 960int32 WebContentsImpl::GetMaxPageID() { 961 return GetMaxPageIDForSiteInstance(GetSiteInstance()); 962} 963 964int32 WebContentsImpl::GetMaxPageIDForSiteInstance( 965 SiteInstance* site_instance) { 966 if (max_page_ids_.find(site_instance->GetId()) == max_page_ids_.end()) 967 max_page_ids_[site_instance->GetId()] = -1; 968 969 return max_page_ids_[site_instance->GetId()]; 970} 971 972void WebContentsImpl::UpdateMaxPageID(int32 page_id) { 973 UpdateMaxPageIDForSiteInstance(GetSiteInstance(), page_id); 974} 975 976void WebContentsImpl::UpdateMaxPageIDForSiteInstance( 977 SiteInstance* site_instance, int32 page_id) { 978 if (GetMaxPageIDForSiteInstance(site_instance) < page_id) 979 max_page_ids_[site_instance->GetId()] = page_id; 980} 981 982void WebContentsImpl::CopyMaxPageIDsFrom(WebContentsImpl* web_contents) { 983 max_page_ids_ = web_contents->max_page_ids_; 984} 985 986SiteInstance* WebContentsImpl::GetSiteInstance() const { 987 return render_manager_.current_host()->GetSiteInstance(); 988} 989 990SiteInstance* WebContentsImpl::GetPendingSiteInstance() const { 991 RenderViewHost* dest_rvh = render_manager_.pending_render_view_host() ? 992 render_manager_.pending_render_view_host() : 993 render_manager_.current_host(); 994 return dest_rvh->GetSiteInstance(); 995} 996 997bool WebContentsImpl::IsLoading() const { 998 return is_loading_; 999} 1000 1001bool WebContentsImpl::IsWaitingForResponse() const { 1002 return waiting_for_response_; 1003} 1004 1005const net::LoadStateWithParam& WebContentsImpl::GetLoadState() const { 1006 return load_state_; 1007} 1008 1009const string16& WebContentsImpl::GetLoadStateHost() const { 1010 return load_state_host_; 1011} 1012 1013uint64 WebContentsImpl::GetUploadSize() const { 1014 return upload_size_; 1015} 1016 1017uint64 WebContentsImpl::GetUploadPosition() const { 1018 return upload_position_; 1019} 1020 1021std::set<GURL> WebContentsImpl::GetSitesInTab() const { 1022 BrowserContext* browser_context = GetBrowserContext(); 1023 std::set<GURL> sites; 1024 if (!frame_tree_root_.get()) 1025 return sites; 1026 1027 // Iterates over the FrameTreeNodes to find each unique site URL that is 1028 // currently committed. 1029 FrameTreeNode* node = NULL; 1030 std::queue<FrameTreeNode*> queue; 1031 queue.push(frame_tree_root_.get()); 1032 1033 while (!queue.empty()) { 1034 node = queue.front(); 1035 queue.pop(); 1036 sites.insert(SiteInstance::GetSiteForURL(browser_context, 1037 node->current_url())); 1038 1039 for (size_t i = 0; i < node->child_count(); ++i) 1040 queue.push(node->child_at(i)); 1041 } 1042 1043 return sites; 1044} 1045 1046const std::string& WebContentsImpl::GetEncoding() const { 1047 return encoding_; 1048} 1049 1050bool WebContentsImpl::DisplayedInsecureContent() const { 1051 return displayed_insecure_content_; 1052} 1053 1054void WebContentsImpl::IncrementCapturerCount() { 1055 DCHECK(!is_being_destroyed_); 1056 ++capturer_count_; 1057 DVLOG(1) << "There are now " << capturer_count_ 1058 << " capturing(s) of WebContentsImpl@" << this; 1059} 1060 1061void WebContentsImpl::DecrementCapturerCount() { 1062 --capturer_count_; 1063 DVLOG(1) << "There are now " << capturer_count_ 1064 << " capturing(s) of WebContentsImpl@" << this; 1065 DCHECK_LE(0, capturer_count_); 1066 1067 if (is_being_destroyed_) 1068 return; 1069 1070 // While capturer_count_ was greater than zero, the WasHidden() calls to RWHV 1071 // were being prevented. If there are no more capturers, make the call now. 1072 if (capturer_count_ == 0 && !should_normally_be_visible_) { 1073 DVLOG(1) << "Executing delayed WasHidden()."; 1074 WasHidden(); 1075 } 1076} 1077 1078bool WebContentsImpl::IsCrashed() const { 1079 return (crashed_status_ == base::TERMINATION_STATUS_PROCESS_CRASHED || 1080 crashed_status_ == base::TERMINATION_STATUS_ABNORMAL_TERMINATION || 1081 crashed_status_ == base::TERMINATION_STATUS_PROCESS_WAS_KILLED); 1082} 1083 1084void WebContentsImpl::SetIsCrashed(base::TerminationStatus status, 1085 int error_code) { 1086 if (status == crashed_status_) 1087 return; 1088 1089 crashed_status_ = status; 1090 crashed_error_code_ = error_code; 1091 NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB); 1092} 1093 1094base::TerminationStatus WebContentsImpl::GetCrashedStatus() const { 1095 return crashed_status_; 1096} 1097 1098bool WebContentsImpl::IsBeingDestroyed() const { 1099 return is_being_destroyed_; 1100} 1101 1102void WebContentsImpl::NotifyNavigationStateChanged(unsigned changed_flags) { 1103 if (delegate_) 1104 delegate_->NavigationStateChanged(this, changed_flags); 1105} 1106 1107base::TimeTicks WebContentsImpl::GetLastSelectedTime() const { 1108 return last_selected_time_; 1109} 1110 1111void WebContentsImpl::WasShown() { 1112 controller_.SetActive(true); 1113 RenderWidgetHostViewPort* rwhv = 1114 RenderWidgetHostViewPort::FromRWHV(GetRenderWidgetHostView()); 1115 if (rwhv) { 1116 rwhv->WasShown(); 1117#if defined(OS_MACOSX) 1118 rwhv->SetActive(true); 1119#endif 1120 } 1121 1122 last_selected_time_ = base::TimeTicks::Now(); 1123 1124 FOR_EACH_OBSERVER(WebContentsObserver, observers_, WasShown()); 1125 1126 // The resize rect might have changed while this was inactive -- send the new 1127 // one to make sure it's up to date. 1128 RenderViewHostImpl* rvh = 1129 static_cast<RenderViewHostImpl*>(GetRenderViewHost()); 1130 if (rvh) { 1131 rvh->ResizeRectChanged(GetRootWindowResizerRect()); 1132 } 1133 1134 should_normally_be_visible_ = true; 1135 NotificationService::current()->Notify( 1136 NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED, 1137 Source<WebContents>(this), 1138 Details<const bool>(&should_normally_be_visible_)); 1139} 1140 1141void WebContentsImpl::WasHidden() { 1142 // If there are entities capturing screenshots or video (e.g., mirroring), 1143 // don't activate the "disable rendering" optimization. 1144 if (capturer_count_ == 0) { 1145 // |GetRenderViewHost()| can be NULL if the user middle clicks a link to 1146 // open a tab in the background, then closes the tab before selecting it. 1147 // This is because closing the tab calls WebContentsImpl::Destroy(), which 1148 // removes the |GetRenderViewHost()|; then when we actually destroy the 1149 // window, OnWindowPosChanged() notices and calls WasHidden() (which 1150 // calls us). 1151 RenderWidgetHostViewPort* rwhv = 1152 RenderWidgetHostViewPort::FromRWHV(GetRenderWidgetHostView()); 1153 if (rwhv) 1154 rwhv->WasHidden(); 1155 } 1156 1157 should_normally_be_visible_ = false; 1158 NotificationService::current()->Notify( 1159 NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED, 1160 Source<WebContents>(this), 1161 Details<const bool>(&should_normally_be_visible_)); 1162} 1163 1164bool WebContentsImpl::NeedToFireBeforeUnload() { 1165 // TODO(creis): Should we fire even for interstitial pages? 1166 return WillNotifyDisconnection() && 1167 !ShowingInterstitialPage() && 1168 !static_cast<RenderViewHostImpl*>( 1169 GetRenderViewHost())->SuddenTerminationAllowed(); 1170} 1171 1172void WebContentsImpl::Stop() { 1173 render_manager_.Stop(); 1174 FOR_EACH_OBSERVER(WebContentsObserver, observers_, StopNavigation()); 1175} 1176 1177WebContents* WebContentsImpl::Clone() { 1178 // We use our current SiteInstance since the cloned entry will use it anyway. 1179 // We pass our own opener so that the cloned page can access it if it was 1180 // before. 1181 CreateParams create_params(GetBrowserContext(), GetSiteInstance()); 1182 create_params.initial_size = view_->GetContainerSize(); 1183 WebContentsImpl* tc = CreateWithOpener(create_params, opener_); 1184 tc->GetController().CopyStateFrom(controller_); 1185 FOR_EACH_OBSERVER(WebContentsObserver, 1186 observers_, 1187 DidCloneToNewWebContents(this, tc)); 1188 return tc; 1189} 1190 1191void WebContentsImpl::Observe(int type, 1192 const NotificationSource& source, 1193 const NotificationDetails& details) { 1194 switch (type) { 1195 case NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED: { 1196 RenderWidgetHost* host = Source<RenderWidgetHost>(source).ptr(); 1197 for (PendingWidgetViews::iterator i = pending_widget_views_.begin(); 1198 i != pending_widget_views_.end(); ++i) { 1199 if (host->GetView() == i->second) { 1200 pending_widget_views_.erase(i); 1201 break; 1202 } 1203 } 1204 break; 1205 } 1206 default: 1207 NOTREACHED(); 1208 } 1209} 1210 1211void WebContentsImpl::Init(const WebContents::CreateParams& params) { 1212 render_manager_.Init( 1213 params.browser_context, params.site_instance, params.routing_id, 1214 params.main_frame_routing_id); 1215 1216 view_.reset(GetContentClient()->browser()-> 1217 OverrideCreateWebContentsView(this, &render_view_host_delegate_view_)); 1218 if (view_) { 1219 CHECK(render_view_host_delegate_view_); 1220 } else { 1221 WebContentsViewDelegate* delegate = 1222 GetContentClient()->browser()->GetWebContentsViewDelegate(this); 1223 1224 if (browser_plugin_guest_) { 1225 // |render_view_host_delegate_view_| is a WebContentsView* and its 1226 // lifetime is managed by its associated WebContentsImpl. 1227 WebContentsViewPort* platform_view = CreateWebContentsView( 1228 this, delegate, &render_view_host_delegate_view_); 1229 1230 WebContentsViewGuest* rv = new WebContentsViewGuest( 1231 this, browser_plugin_guest_.get(), platform_view, 1232 render_view_host_delegate_view_); 1233 render_view_host_delegate_view_ = rv; 1234 view_.reset(rv); 1235 } else { 1236 // Regular WebContentsView. 1237 view_.reset(CreateWebContentsView( 1238 this, delegate, &render_view_host_delegate_view_)); 1239 } 1240 CHECK(render_view_host_delegate_view_); 1241 } 1242 CHECK(view_.get()); 1243 1244 gfx::Size initial_size = params.initial_size; 1245 view_->CreateView(initial_size, params.context); 1246 1247 // Listen for whether our opener gets destroyed. 1248 if (opener_) 1249 AddDestructionObserver(opener_); 1250 1251 registrar_.Add(this, 1252 NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED, 1253 NotificationService::AllBrowserContextsAndSources()); 1254#if defined(OS_ANDROID) 1255 java_bridge_dispatcher_host_manager_.reset( 1256 new JavaBridgeDispatcherHostManager(this)); 1257#endif 1258 1259#if defined(OS_ANDROID) 1260 date_time_chooser_.reset(new DateTimeChooserAndroid()); 1261#endif 1262} 1263 1264void WebContentsImpl::OnWebContentsDestroyed(WebContentsImpl* web_contents) { 1265 RemoveDestructionObserver(web_contents); 1266 1267 // Clear the opener if it has been closed. 1268 if (web_contents == opener_) { 1269 opener_ = NULL; 1270 return; 1271 } 1272 // Clear a pending contents that has been closed before being shown. 1273 for (PendingContents::iterator iter = pending_contents_.begin(); 1274 iter != pending_contents_.end(); 1275 ++iter) { 1276 if (iter->second != web_contents) 1277 continue; 1278 pending_contents_.erase(iter); 1279 return; 1280 } 1281 NOTREACHED(); 1282} 1283 1284void WebContentsImpl::AddDestructionObserver(WebContentsImpl* web_contents) { 1285 if (!ContainsKey(destruction_observers_, web_contents)) { 1286 destruction_observers_[web_contents] = 1287 new DestructionObserver(this, web_contents); 1288 } 1289} 1290 1291void WebContentsImpl::RemoveDestructionObserver(WebContentsImpl* web_contents) { 1292 DestructionObservers::iterator iter = 1293 destruction_observers_.find(web_contents); 1294 if (iter != destruction_observers_.end()) { 1295 delete destruction_observers_[web_contents]; 1296 destruction_observers_.erase(iter); 1297 } 1298} 1299 1300void WebContentsImpl::AddObserver(WebContentsObserver* observer) { 1301 observers_.AddObserver(observer); 1302} 1303 1304void WebContentsImpl::RemoveObserver(WebContentsObserver* observer) { 1305 observers_.RemoveObserver(observer); 1306} 1307 1308void WebContentsImpl::Activate() { 1309 if (delegate_) 1310 delegate_->ActivateContents(this); 1311} 1312 1313void WebContentsImpl::Deactivate() { 1314 if (delegate_) 1315 delegate_->DeactivateContents(this); 1316} 1317 1318void WebContentsImpl::LostCapture() { 1319 if (delegate_) 1320 delegate_->LostCapture(); 1321} 1322 1323void WebContentsImpl::RenderWidgetDeleted( 1324 RenderWidgetHostImpl* render_widget_host) { 1325 if (is_being_destroyed_) { 1326 // |created_widgets_| might have been destroyed. 1327 return; 1328 } 1329 1330 std::set<RenderWidgetHostImpl*>::iterator iter = 1331 created_widgets_.find(render_widget_host); 1332 if (iter != created_widgets_.end()) 1333 created_widgets_.erase(iter); 1334 1335 if (render_widget_host && 1336 render_widget_host->GetRoutingID() == fullscreen_widget_routing_id_) { 1337 FOR_EACH_OBSERVER(WebContentsObserver, 1338 observers_, 1339 DidDestroyFullscreenWidget( 1340 fullscreen_widget_routing_id_)); 1341 fullscreen_widget_routing_id_ = MSG_ROUTING_NONE; 1342 } 1343} 1344 1345bool WebContentsImpl::PreHandleKeyboardEvent( 1346 const NativeWebKeyboardEvent& event, 1347 bool* is_keyboard_shortcut) { 1348 return delegate_ && 1349 delegate_->PreHandleKeyboardEvent(this, event, is_keyboard_shortcut); 1350} 1351 1352void WebContentsImpl::HandleKeyboardEvent(const NativeWebKeyboardEvent& event) { 1353 if (browser_plugin_embedder_ && 1354 browser_plugin_embedder_->HandleKeyboardEvent(event)) { 1355 return; 1356 } 1357 1358 if (delegate_) 1359 delegate_->HandleKeyboardEvent(this, event); 1360} 1361 1362bool WebContentsImpl::PreHandleWheelEvent( 1363 const WebKit::WebMouseWheelEvent& event) { 1364#if !defined(OS_MACOSX) 1365 // On platforms other than Mac, control+mousewheel changes zoom. On Mac, this 1366 // isn't done for two reasons: 1367 // -the OS already has a gesture to do this through pinch-zoom 1368 // -if a user starts an inertial scroll, let's go, and presses control 1369 // (i.e. control+tab) then the OS's buffered scroll events will come in 1370 // with control key set which isn't what the user wants 1371 if (delegate_ && 1372 event.wheelTicksY && 1373 (event.modifiers & WebKit::WebInputEvent::ControlKey)) { 1374 delegate_->ContentsZoomChange(event.wheelTicksY > 0); 1375 return true; 1376 } 1377#endif 1378 1379 return false; 1380} 1381 1382#if defined(OS_WIN) && defined(USE_AURA) 1383gfx::NativeViewAccessible WebContentsImpl::GetParentNativeViewAccessible() { 1384 return accessible_parent_; 1385} 1386#endif 1387 1388void WebContentsImpl::HandleMouseDown() { 1389 if (delegate_) 1390 delegate_->HandleMouseDown(); 1391} 1392 1393void WebContentsImpl::HandleMouseUp() { 1394 if (delegate_) 1395 delegate_->HandleMouseUp(); 1396} 1397 1398void WebContentsImpl::HandlePointerActivate() { 1399 if (delegate_) 1400 delegate_->HandlePointerActivate(); 1401} 1402 1403void WebContentsImpl::HandleGestureBegin() { 1404 if (delegate_) 1405 delegate_->HandleGestureBegin(); 1406} 1407 1408void WebContentsImpl::HandleGestureEnd() { 1409 if (delegate_) 1410 delegate_->HandleGestureEnd(); 1411} 1412 1413void WebContentsImpl::ToggleFullscreenMode(bool enter_fullscreen) { 1414 if (delegate_) 1415 delegate_->ToggleFullscreenModeForTab(this, enter_fullscreen); 1416} 1417 1418bool WebContentsImpl::IsFullscreenForCurrentTab() const { 1419 return delegate_ ? delegate_->IsFullscreenForTabOrPending(this) : false; 1420} 1421 1422void WebContentsImpl::RequestToLockMouse(bool user_gesture, 1423 bool last_unlocked_by_target) { 1424 if (delegate_) { 1425 delegate_->RequestToLockMouse(this, user_gesture, last_unlocked_by_target); 1426 } else { 1427 GotResponseToLockMouseRequest(false); 1428 } 1429} 1430 1431void WebContentsImpl::LostMouseLock() { 1432 if (delegate_) 1433 delegate_->LostMouseLock(); 1434} 1435 1436void WebContentsImpl::CreateNewWindow( 1437 int route_id, 1438 int main_frame_route_id, 1439 const ViewHostMsg_CreateWindow_Params& params, 1440 SessionStorageNamespace* session_storage_namespace) { 1441 if (delegate_ && !delegate_->ShouldCreateWebContents( 1442 this, route_id, params.window_container_type, params.frame_name, 1443 params.target_url)) { 1444 GetRenderViewHost()->GetProcess()->ResumeRequestsForView(route_id); 1445 GetRenderViewHost()->GetProcess()->ResumeRequestsForView( 1446 main_frame_route_id); 1447 return; 1448 } 1449 1450 // We usually create the new window in the same BrowsingInstance (group of 1451 // script-related windows), by passing in the current SiteInstance. However, 1452 // if the opener is being suppressed (in a non-guest), we create a new 1453 // SiteInstance in its own BrowsingInstance. 1454 bool is_guest = GetRenderProcessHost()->IsGuest(); 1455 1456 scoped_refptr<SiteInstance> site_instance = 1457 params.opener_suppressed && !is_guest ? 1458 SiteInstance::CreateForURL(GetBrowserContext(), params.target_url) : 1459 GetSiteInstance(); 1460 1461 // Create the new web contents. This will automatically create the new 1462 // WebContentsView. In the future, we may want to create the view separately. 1463 WebContentsImpl* new_contents = 1464 new WebContentsImpl(GetBrowserContext(), 1465 params.opener_suppressed ? NULL : this); 1466 1467 // We must assign the SessionStorageNamespace before calling Init(). 1468 // 1469 // http://crbug.com/142685 1470 const std::string& partition_id = 1471 GetContentClient()->browser()-> 1472 GetStoragePartitionIdForSite(GetBrowserContext(), 1473 site_instance->GetSiteURL()); 1474 StoragePartition* partition = BrowserContext::GetStoragePartition( 1475 GetBrowserContext(), site_instance.get()); 1476 DOMStorageContextImpl* dom_storage_context = 1477 static_cast<DOMStorageContextImpl*>(partition->GetDOMStorageContext()); 1478 SessionStorageNamespaceImpl* session_storage_namespace_impl = 1479 static_cast<SessionStorageNamespaceImpl*>(session_storage_namespace); 1480 CHECK(session_storage_namespace_impl->IsFromContext(dom_storage_context)); 1481 new_contents->GetController().SetSessionStorageNamespace( 1482 partition_id, 1483 session_storage_namespace); 1484 CreateParams create_params(GetBrowserContext(), site_instance.get()); 1485 create_params.routing_id = route_id; 1486 create_params.main_frame_routing_id = main_frame_route_id; 1487 if (!is_guest) { 1488 create_params.context = view_->GetNativeView(); 1489 create_params.initial_size = view_->GetContainerSize(); 1490 } else { 1491 // This makes |new_contents| act as a guest. 1492 // For more info, see comment above class BrowserPluginGuest. 1493 int instance_id = GetBrowserPluginGuestManager()->get_next_instance_id(); 1494 WebContentsImpl* new_contents_impl = 1495 static_cast<WebContentsImpl*>(new_contents); 1496 BrowserPluginGuest::CreateWithOpener(instance_id, new_contents_impl, 1497 GetBrowserPluginGuest(), !!new_contents_impl->opener()); 1498 } 1499 new_contents->Init(create_params); 1500 1501 // Save the window for later if we're not suppressing the opener (since it 1502 // will be shown immediately). 1503 if (!params.opener_suppressed) { 1504 if (!is_guest) { 1505 WebContentsViewPort* new_view = new_contents->view_.get(); 1506 1507 // TODO(brettw): It seems bogus that we have to call this function on the 1508 // newly created object and give it one of its own member variables. 1509 new_view->CreateViewForWidget(new_contents->GetRenderViewHost()); 1510 } 1511 // Save the created window associated with the route so we can show it 1512 // later. 1513 DCHECK_NE(MSG_ROUTING_NONE, route_id); 1514 pending_contents_[route_id] = new_contents; 1515 AddDestructionObserver(new_contents); 1516 } 1517 1518 if (delegate_) { 1519 delegate_->WebContentsCreated( 1520 this, params.opener_frame_id, params.frame_name, 1521 params.target_url, new_contents); 1522 } 1523 1524 if (params.opener_suppressed) { 1525 // When the opener is suppressed, the original renderer cannot access the 1526 // new window. As a result, we need to show and navigate the window here. 1527 bool was_blocked = false; 1528 if (delegate_) { 1529 gfx::Rect initial_pos; 1530 delegate_->AddNewContents( 1531 this, new_contents, params.disposition, initial_pos, 1532 params.user_gesture, &was_blocked); 1533 } 1534 if (!was_blocked) { 1535 OpenURLParams open_params(params.target_url, 1536 Referrer(), 1537 CURRENT_TAB, 1538 PAGE_TRANSITION_LINK, 1539 true /* is_renderer_initiated */); 1540 new_contents->OpenURL(open_params); 1541 } 1542 } 1543} 1544 1545void WebContentsImpl::CreateNewWidget(int route_id, 1546 WebKit::WebPopupType popup_type) { 1547 CreateNewWidget(route_id, false, popup_type); 1548} 1549 1550void WebContentsImpl::CreateNewFullscreenWidget(int route_id) { 1551 CreateNewWidget(route_id, true, WebKit::WebPopupTypeNone); 1552} 1553 1554void WebContentsImpl::CreateNewWidget(int route_id, 1555 bool is_fullscreen, 1556 WebKit::WebPopupType popup_type) { 1557 RenderProcessHost* process = GetRenderProcessHost(); 1558 RenderWidgetHostImpl* widget_host = 1559 new RenderWidgetHostImpl(this, process, route_id); 1560 created_widgets_.insert(widget_host); 1561 1562 RenderWidgetHostViewPort* widget_view = RenderWidgetHostViewPort::FromRWHV( 1563 view_->CreateViewForPopupWidget(widget_host)); 1564 if (!widget_view) 1565 return; 1566 if (!is_fullscreen) { 1567 // Popups should not get activated. 1568 widget_view->SetPopupType(popup_type); 1569 } 1570 // Save the created widget associated with the route so we can show it later. 1571 pending_widget_views_[route_id] = widget_view; 1572 1573#if defined(OS_MACOSX) 1574 // A RenderWidgetHostViewMac has lifetime scoped to the view. We'll retain it 1575 // to allow it to survive the trip without being hosted. 1576 base::mac::NSObjectRetain(widget_view->GetNativeView()); 1577#endif 1578} 1579 1580void WebContentsImpl::ShowCreatedWindow(int route_id, 1581 WindowOpenDisposition disposition, 1582 const gfx::Rect& initial_pos, 1583 bool user_gesture) { 1584 WebContentsImpl* contents = GetCreatedWindow(route_id); 1585 if (contents) { 1586 WebContentsDelegate* delegate = GetDelegate(); 1587 if (delegate) { 1588 delegate->AddNewContents( 1589 this, contents, disposition, initial_pos, user_gesture, NULL); 1590 } 1591 } 1592} 1593 1594void WebContentsImpl::ShowCreatedWidget(int route_id, 1595 const gfx::Rect& initial_pos) { 1596 ShowCreatedWidget(route_id, false, initial_pos); 1597} 1598 1599void WebContentsImpl::ShowCreatedFullscreenWidget(int route_id) { 1600 ShowCreatedWidget(route_id, true, gfx::Rect()); 1601 1602 DCHECK_EQ(MSG_ROUTING_NONE, fullscreen_widget_routing_id_); 1603 fullscreen_widget_routing_id_ = route_id; 1604 FOR_EACH_OBSERVER(WebContentsObserver, 1605 observers_, 1606 DidShowFullscreenWidget(route_id)); 1607} 1608 1609void WebContentsImpl::ShowCreatedWidget(int route_id, 1610 bool is_fullscreen, 1611 const gfx::Rect& initial_pos) { 1612 if (delegate_) 1613 delegate_->RenderWidgetShowing(); 1614 1615 RenderWidgetHostViewPort* widget_host_view = 1616 RenderWidgetHostViewPort::FromRWHV(GetCreatedWidget(route_id)); 1617 if (!widget_host_view) 1618 return; 1619 if (is_fullscreen) 1620 widget_host_view->InitAsFullscreen(GetRenderWidgetHostViewPort()); 1621 else 1622 widget_host_view->InitAsPopup(GetRenderWidgetHostViewPort(), initial_pos); 1623 1624 RenderWidgetHostImpl* render_widget_host_impl = 1625 RenderWidgetHostImpl::From(widget_host_view->GetRenderWidgetHost()); 1626 render_widget_host_impl->Init(); 1627 // Only allow privileged mouse lock for fullscreen render widget, which is 1628 // used to implement Pepper Flash fullscreen. 1629 render_widget_host_impl->set_allow_privileged_mouse_lock(is_fullscreen); 1630 1631#if defined(OS_MACOSX) 1632 // A RenderWidgetHostViewMac has lifetime scoped to the view. Now that it's 1633 // properly embedded (or purposefully ignored) we can release the retain we 1634 // took in CreateNewWidget(). 1635 base::mac::NSObjectRelease(widget_host_view->GetNativeView()); 1636#endif 1637} 1638 1639WebContentsImpl* WebContentsImpl::GetCreatedWindow(int route_id) { 1640 PendingContents::iterator iter = pending_contents_.find(route_id); 1641 1642 // Certain systems can block the creation of new windows. If we didn't succeed 1643 // in creating one, just return NULL. 1644 if (iter == pending_contents_.end()) { 1645 return NULL; 1646 } 1647 1648 WebContentsImpl* new_contents = iter->second; 1649 pending_contents_.erase(route_id); 1650 RemoveDestructionObserver(new_contents); 1651 1652 // Don't initialize the guest WebContents immediately. 1653 if (new_contents->GetRenderProcessHost()->IsGuest()) 1654 return new_contents; 1655 1656 if (!new_contents->GetRenderProcessHost()->HasConnection() || 1657 !new_contents->GetRenderViewHost()->GetView()) 1658 return NULL; 1659 1660 // TODO(brettw): It seems bogus to reach into here and initialize the host. 1661 static_cast<RenderViewHostImpl*>(new_contents->GetRenderViewHost())->Init(); 1662 return new_contents; 1663} 1664 1665RenderWidgetHostView* WebContentsImpl::GetCreatedWidget(int route_id) { 1666 PendingWidgetViews::iterator iter = pending_widget_views_.find(route_id); 1667 if (iter == pending_widget_views_.end()) { 1668 DCHECK(false); 1669 return NULL; 1670 } 1671 1672 RenderWidgetHostView* widget_host_view = iter->second; 1673 pending_widget_views_.erase(route_id); 1674 1675 RenderWidgetHost* widget_host = widget_host_view->GetRenderWidgetHost(); 1676 if (!widget_host->GetProcess()->HasConnection()) { 1677 // The view has gone away or the renderer crashed. Nothing to do. 1678 return NULL; 1679 } 1680 1681 return widget_host_view; 1682} 1683 1684void WebContentsImpl::ShowContextMenu(const ContextMenuParams& params) { 1685 // Allow WebContentsDelegates to handle the context menu operation first. 1686 if (delegate_ && delegate_->HandleContextMenu(params)) 1687 return; 1688 1689 render_view_host_delegate_view_->ShowContextMenu(params); 1690} 1691 1692void WebContentsImpl::RequestMediaAccessPermission( 1693 const MediaStreamRequest& request, 1694 const MediaResponseCallback& callback) { 1695 if (delegate_) 1696 delegate_->RequestMediaAccessPermission(this, request, callback); 1697 else 1698 callback.Run(MediaStreamDevices(), scoped_ptr<MediaStreamUI>()); 1699} 1700 1701void WebContentsImpl::DidSendScreenRects(RenderWidgetHostImpl* rwh) { 1702 if (browser_plugin_embedder_) 1703 browser_plugin_embedder_->DidSendScreenRects(); 1704} 1705 1706void WebContentsImpl::UpdatePreferredSize(const gfx::Size& pref_size) { 1707 preferred_size_ = pref_size; 1708 if (delegate_) 1709 delegate_->UpdatePreferredSize(this, pref_size); 1710} 1711 1712void WebContentsImpl::ResizeDueToAutoResize(const gfx::Size& new_size) { 1713 if (delegate_) 1714 delegate_->ResizeDueToAutoResize(this, new_size); 1715} 1716 1717WebContents* WebContentsImpl::OpenURL(const OpenURLParams& params) { 1718 if (!delegate_) 1719 return NULL; 1720 1721 WebContents* new_contents = delegate_->OpenURLFromTab(this, params); 1722 return new_contents; 1723} 1724 1725bool WebContentsImpl::Send(IPC::Message* message) { 1726 if (!GetRenderViewHost()) { 1727 delete message; 1728 return false; 1729 } 1730 1731 return GetRenderViewHost()->Send(message); 1732} 1733 1734bool WebContentsImpl::NavigateToPendingEntry( 1735 NavigationController::ReloadType reload_type) { 1736 return NavigateToEntry( 1737 *NavigationEntryImpl::FromNavigationEntry(controller_.GetPendingEntry()), 1738 reload_type); 1739} 1740 1741void WebContentsImpl::RenderViewForInterstitialPageCreated( 1742 RenderViewHost* render_view_host) { 1743 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 1744 RenderViewForInterstitialPageCreated(render_view_host)); 1745} 1746 1747void WebContentsImpl::AttachInterstitialPage( 1748 InterstitialPageImpl* interstitial_page) { 1749 DCHECK(interstitial_page); 1750 render_manager_.set_interstitial_page(interstitial_page); 1751 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 1752 DidAttachInterstitialPage()); 1753} 1754 1755void WebContentsImpl::DetachInterstitialPage() { 1756 if (GetInterstitialPage()) 1757 render_manager_.remove_interstitial_page(); 1758 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 1759 DidDetachInterstitialPage()); 1760} 1761 1762bool WebContentsImpl::NavigateToEntry( 1763 const NavigationEntryImpl& entry, 1764 NavigationController::ReloadType reload_type) { 1765 TRACE_EVENT0("browser", "WebContentsImpl::NavigateToEntry"); 1766 1767 // The renderer will reject IPC messages with URLs longer than 1768 // this limit, so don't attempt to navigate with a longer URL. 1769 if (entry.GetURL().spec().size() > kMaxURLChars) 1770 return false; 1771 1772 RenderViewHostImpl* dest_render_view_host = 1773 static_cast<RenderViewHostImpl*>(render_manager_.Navigate(entry)); 1774 if (!dest_render_view_host) 1775 return false; // Unable to create the desired render view host. 1776 1777 // For security, we should never send non-Web-UI URLs to a Web UI renderer. 1778 // Double check that here. 1779 int enabled_bindings = dest_render_view_host->GetEnabledBindings(); 1780 bool data_urls_allowed = delegate_ && delegate_->CanLoadDataURLsInWebUI(); 1781 bool is_allowed_in_web_ui_renderer = 1782 WebUIControllerFactoryRegistry::GetInstance()->IsURLAcceptableForWebUI( 1783 GetBrowserContext(), entry.GetURL(), data_urls_allowed); 1784 if ((enabled_bindings & BINDINGS_POLICY_WEB_UI) && 1785 !is_allowed_in_web_ui_renderer) { 1786 // Log the URL to help us diagnose any future failures of this CHECK. 1787 GetContentClient()->SetActiveURL(entry.GetURL()); 1788 CHECK(0); 1789 } 1790 1791 // Notify observers that we will navigate in this RV. 1792 FOR_EACH_OBSERVER(WebContentsObserver, 1793 observers_, 1794 AboutToNavigateRenderView(dest_render_view_host)); 1795 1796 // Used for page load time metrics. 1797 current_load_start_ = base::TimeTicks::Now(); 1798 1799 // Navigate in the desired RenderViewHost. 1800 ViewMsg_Navigate_Params navigate_params; 1801 MakeNavigateParams(entry, controller_, delegate_, reload_type, 1802 &navigate_params); 1803 dest_render_view_host->Navigate(navigate_params); 1804 1805 if (entry.GetPageID() == -1) { 1806 // HACK!! This code suppresses javascript: URLs from being added to 1807 // session history, which is what we want to do for javascript: URLs that 1808 // do not generate content. What we really need is a message from the 1809 // renderer telling us that a new page was not created. The same message 1810 // could be used for mailto: URLs and the like. 1811 if (entry.GetURL().SchemeIs(chrome::kJavaScriptScheme)) 1812 return false; 1813 } 1814 1815 // Notify observers about navigation. 1816 FOR_EACH_OBSERVER(WebContentsObserver, 1817 observers_, 1818 NavigateToPendingEntry(entry.GetURL(), reload_type)); 1819 1820 if (delegate_) 1821 delegate_->DidNavigateToPendingEntry(this); 1822 1823 return true; 1824} 1825 1826void WebContentsImpl::SetHistoryLengthAndPrune( 1827 const SiteInstance* site_instance, 1828 int history_length, 1829 int32 minimum_page_id) { 1830 // SetHistoryLengthAndPrune doesn't work when there are pending cross-site 1831 // navigations. Callers should ensure that this is the case. 1832 if (render_manager_.pending_render_view_host()) { 1833 NOTREACHED(); 1834 return; 1835 } 1836 RenderViewHostImpl* rvh = GetRenderViewHostImpl(); 1837 if (!rvh) { 1838 NOTREACHED(); 1839 return; 1840 } 1841 if (site_instance && rvh->GetSiteInstance() != site_instance) { 1842 NOTREACHED(); 1843 return; 1844 } 1845 Send(new ViewMsg_SetHistoryLengthAndPrune(GetRoutingID(), 1846 history_length, 1847 minimum_page_id)); 1848} 1849 1850void WebContentsImpl::FocusThroughTabTraversal(bool reverse) { 1851 if (ShowingInterstitialPage()) { 1852 render_manager_.interstitial_page()->FocusThroughTabTraversal(reverse); 1853 return; 1854 } 1855 GetRenderViewHostImpl()->SetInitialFocus(reverse); 1856} 1857 1858bool WebContentsImpl::ShowingInterstitialPage() const { 1859 return render_manager_.interstitial_page() != NULL; 1860} 1861 1862InterstitialPage* WebContentsImpl::GetInterstitialPage() const { 1863 return render_manager_.interstitial_page(); 1864} 1865 1866bool WebContentsImpl::IsSavable() { 1867 // WebKit creates Document object when MIME type is application/xhtml+xml, 1868 // so we also support this MIME type. 1869 return contents_mime_type_ == "text/html" || 1870 contents_mime_type_ == "text/xml" || 1871 contents_mime_type_ == "application/xhtml+xml" || 1872 contents_mime_type_ == "text/plain" || 1873 contents_mime_type_ == "text/css" || 1874 net::IsSupportedJavascriptMimeType(contents_mime_type_.c_str()); 1875} 1876 1877void WebContentsImpl::OnSavePage() { 1878 // If we can not save the page, try to download it. 1879 if (!IsSavable()) { 1880 RecordDownloadSource(INITIATED_BY_SAVE_PACKAGE_ON_NON_HTML); 1881 SaveURL(GetURL(), Referrer(), true); 1882 return; 1883 } 1884 1885 Stop(); 1886 1887 // Create the save package and possibly prompt the user for the name to save 1888 // the page as. The user prompt is an asynchronous operation that runs on 1889 // another thread. 1890 save_package_ = new SavePackage(this); 1891 save_package_->GetSaveInfo(); 1892} 1893 1894// Used in automated testing to bypass prompting the user for file names. 1895// Instead, the names and paths are hard coded rather than running them through 1896// file name sanitation and extension / mime checking. 1897bool WebContentsImpl::SavePage(const base::FilePath& main_file, 1898 const base::FilePath& dir_path, 1899 SavePageType save_type) { 1900 // Stop the page from navigating. 1901 Stop(); 1902 1903 save_package_ = new SavePackage(this, save_type, main_file, dir_path); 1904 return save_package_->Init(SavePackageDownloadCreatedCallback()); 1905} 1906 1907void WebContentsImpl::GenerateMHTML( 1908 const base::FilePath& file, 1909 const base::Callback<void(const base::FilePath&, int64)>& callback) { 1910 MHTMLGenerationManager::GetInstance()->GenerateMHTML(this, file, callback); 1911} 1912 1913bool WebContentsImpl::IsActiveEntry(int32 page_id) { 1914 NavigationEntryImpl* active_entry = 1915 NavigationEntryImpl::FromNavigationEntry(controller_.GetActiveEntry()); 1916 return (active_entry != NULL && 1917 active_entry->site_instance() == GetSiteInstance() && 1918 active_entry->GetPageID() == page_id); 1919} 1920 1921const std::string& WebContentsImpl::GetContentsMimeType() const { 1922 return contents_mime_type_; 1923} 1924 1925bool WebContentsImpl::WillNotifyDisconnection() const { 1926 return notify_disconnection_; 1927} 1928 1929void WebContentsImpl::SetOverrideEncoding(const std::string& encoding) { 1930 SetEncoding(encoding); 1931 Send(new ViewMsg_SetPageEncoding(GetRoutingID(), encoding)); 1932} 1933 1934void WebContentsImpl::ResetOverrideEncoding() { 1935 encoding_.clear(); 1936 Send(new ViewMsg_ResetPageEncodingToDefault(GetRoutingID())); 1937} 1938 1939RendererPreferences* WebContentsImpl::GetMutableRendererPrefs() { 1940 return &renderer_preferences_; 1941} 1942 1943void WebContentsImpl::Close() { 1944 Close(GetRenderViewHost()); 1945} 1946 1947void WebContentsImpl::DragSourceEndedAt(int client_x, int client_y, 1948 int screen_x, int screen_y, WebKit::WebDragOperation operation) { 1949 if (browser_plugin_embedder_.get()) 1950 browser_plugin_embedder_->DragSourceEndedAt(client_x, client_y, 1951 screen_x, screen_y, operation); 1952 if (GetRenderViewHost()) 1953 GetRenderViewHostImpl()->DragSourceEndedAt(client_x, client_y, 1954 screen_x, screen_y, operation); 1955} 1956 1957void WebContentsImpl::DragSourceMovedTo(int client_x, int client_y, 1958 int screen_x, int screen_y) { 1959 if (browser_plugin_embedder_.get()) 1960 browser_plugin_embedder_->DragSourceMovedTo(client_x, client_y, 1961 screen_x, screen_y); 1962 if (GetRenderViewHost()) 1963 GetRenderViewHostImpl()->DragSourceMovedTo(client_x, client_y, 1964 screen_x, screen_y); 1965} 1966 1967void WebContentsImpl::SystemDragEnded() { 1968 if (GetRenderViewHost()) 1969 GetRenderViewHostImpl()->DragSourceSystemDragEnded(); 1970 if (delegate_) 1971 delegate_->DragEnded(); 1972 if (browser_plugin_embedder_.get()) 1973 browser_plugin_embedder_->SystemDragEnded(); 1974} 1975 1976void WebContentsImpl::UserGestureDone() { 1977 OnUserGesture(); 1978} 1979 1980void WebContentsImpl::SetClosedByUserGesture(bool value) { 1981 closed_by_user_gesture_ = value; 1982} 1983 1984bool WebContentsImpl::GetClosedByUserGesture() const { 1985 return closed_by_user_gesture_; 1986} 1987 1988double WebContentsImpl::GetZoomLevel() const { 1989 HostZoomMapImpl* zoom_map = static_cast<HostZoomMapImpl*>( 1990 HostZoomMap::GetForBrowserContext(GetBrowserContext())); 1991 if (!zoom_map) 1992 return 0; 1993 1994 double zoom_level; 1995 if (temporary_zoom_settings_) { 1996 zoom_level = zoom_map->GetTemporaryZoomLevel( 1997 GetRenderProcessHost()->GetID(), GetRenderViewHost()->GetRoutingID()); 1998 } else { 1999 GURL url; 2000 NavigationEntry* active_entry = GetController().GetActiveEntry(); 2001 // Since zoom map is updated using rewritten URL, use rewritten URL 2002 // to get the zoom level. 2003 url = active_entry ? active_entry->GetURL() : GURL::EmptyGURL(); 2004 zoom_level = zoom_map->GetZoomLevelForHostAndScheme(url.scheme(), 2005 net::GetHostOrSpecFromURL(url)); 2006 } 2007 return zoom_level; 2008} 2009 2010int WebContentsImpl::GetZoomPercent(bool* enable_increment, 2011 bool* enable_decrement) const { 2012 *enable_decrement = *enable_increment = false; 2013 // Calculate the zoom percent from the factor. Round up to the nearest whole 2014 // number. 2015 int percent = static_cast<int>( 2016 WebKit::WebView::zoomLevelToZoomFactor(GetZoomLevel()) * 100 + 0.5); 2017 *enable_decrement = percent > minimum_zoom_percent_; 2018 *enable_increment = percent < maximum_zoom_percent_; 2019 return percent; 2020} 2021 2022void WebContentsImpl::ViewSource() { 2023 if (!delegate_) 2024 return; 2025 2026 NavigationEntry* active_entry = GetController().GetActiveEntry(); 2027 if (!active_entry) 2028 return; 2029 2030 delegate_->ViewSourceForTab(this, active_entry->GetURL()); 2031} 2032 2033void WebContentsImpl::ViewFrameSource(const GURL& url, 2034 const PageState& page_state) { 2035 if (!delegate_) 2036 return; 2037 2038 delegate_->ViewSourceForFrame(this, url, page_state); 2039} 2040 2041int WebContentsImpl::GetMinimumZoomPercent() const { 2042 return minimum_zoom_percent_; 2043} 2044 2045int WebContentsImpl::GetMaximumZoomPercent() const { 2046 return maximum_zoom_percent_; 2047} 2048 2049gfx::Size WebContentsImpl::GetPreferredSize() const { 2050 return preferred_size_; 2051} 2052 2053int WebContentsImpl::GetContentRestrictions() const { 2054 return content_restrictions_; 2055} 2056 2057bool WebContentsImpl::GotResponseToLockMouseRequest(bool allowed) { 2058 return GetRenderViewHost() ? 2059 GetRenderViewHostImpl()->GotResponseToLockMouseRequest(allowed) : false; 2060} 2061 2062bool WebContentsImpl::HasOpener() const { 2063 return opener_ != NULL; 2064} 2065 2066void WebContentsImpl::DidChooseColorInColorChooser(SkColor color) { 2067 Send(new ViewMsg_DidChooseColorResponse( 2068 GetRoutingID(), color_chooser_identifier_, color)); 2069} 2070 2071void WebContentsImpl::DidEndColorChooser() { 2072 Send(new ViewMsg_DidEndColorChooser(GetRoutingID(), 2073 color_chooser_identifier_)); 2074 color_chooser_.reset(); 2075 color_chooser_identifier_ = 0; 2076} 2077 2078int WebContentsImpl::DownloadImage(const GURL& url, 2079 bool is_favicon, 2080 uint32_t preferred_image_size, 2081 uint32_t max_image_size, 2082 const ImageDownloadCallback& callback) { 2083 RenderViewHost* host = GetRenderViewHost(); 2084 int id = StartDownload( 2085 host, url, is_favicon, preferred_image_size, max_image_size); 2086 image_download_map_[id] = callback; 2087 return id; 2088} 2089 2090bool WebContentsImpl::FocusLocationBarByDefault() { 2091 NavigationEntry* entry = controller_.GetActiveEntry(); 2092 if (entry && entry->GetURL() == GURL(kAboutBlankURL)) 2093 return true; 2094 return delegate_ && delegate_->ShouldFocusLocationBarByDefault(this); 2095} 2096 2097void WebContentsImpl::SetFocusToLocationBar(bool select_all) { 2098 if (delegate_) 2099 delegate_->SetFocusToLocationBar(select_all); 2100} 2101 2102void WebContentsImpl::DidStartProvisionalLoadForFrame( 2103 RenderViewHost* render_view_host, 2104 int64 frame_id, 2105 int64 parent_frame_id, 2106 bool is_main_frame, 2107 const GURL& url) { 2108 bool is_error_page = (url.spec() == kUnreachableWebDataURL); 2109 bool is_iframe_srcdoc = (url.spec() == kAboutSrcDocURL); 2110 GURL validated_url(url); 2111 RenderProcessHost* render_process_host = 2112 render_view_host->GetProcess(); 2113 RenderViewHost::FilterURL(render_process_host, false, &validated_url); 2114 2115 if (is_main_frame) 2116 DidChangeLoadProgress(0); 2117 2118 // Create a pending entry for this provisional load (if none exists) using the 2119 // current SiteInstance, and ensure the address bar updates accordingly. 2120 // We don't know the referrer or extra headers at this point, but the referrer 2121 // will be set properly upon commit. 2122 if (is_main_frame && !controller_.GetPendingEntry()) { 2123 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry( 2124 controller_.CreateNavigationEntry(validated_url, 2125 content::Referrer(), 2126 content::PAGE_TRANSITION_LINK, 2127 true /* is_renderer_initiated */, 2128 std::string(), GetBrowserContext())); 2129 entry->set_site_instance( 2130 static_cast<SiteInstanceImpl*>(GetSiteInstance())); 2131 controller_.SetPendingEntry(entry); 2132 NotifyNavigationStateChanged(content::INVALIDATE_TYPE_URL); 2133 } 2134 2135 // Notify observers about the start of the provisional load. 2136 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2137 DidStartProvisionalLoadForFrame(frame_id, parent_frame_id, 2138 is_main_frame, validated_url, is_error_page, 2139 is_iframe_srcdoc, render_view_host)); 2140 2141 if (is_main_frame) { 2142 // Notify observers about the provisional change in the main frame URL. 2143 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2144 ProvisionalChangeToMainFrameUrl(validated_url, 2145 render_view_host)); 2146 } 2147} 2148 2149void WebContentsImpl::DidRedirectProvisionalLoad( 2150 RenderViewHost* render_view_host, 2151 int32 page_id, 2152 const GURL& source_url, 2153 const GURL& target_url) { 2154 // TODO(creis): Remove this method and have the pre-rendering code listen to 2155 // the ResourceDispatcherHost's RESOURCE_RECEIVED_REDIRECT notification 2156 // instead. See http://crbug.com/78512. 2157 GURL validated_source_url(source_url); 2158 GURL validated_target_url(target_url); 2159 RenderProcessHost* render_process_host = 2160 render_view_host->GetProcess(); 2161 RenderViewHost::FilterURL(render_process_host, false, &validated_source_url); 2162 RenderViewHost::FilterURL(render_process_host, false, &validated_target_url); 2163 NavigationEntry* entry; 2164 if (page_id == -1) { 2165 entry = controller_.GetPendingEntry(); 2166 } else { 2167 entry = controller_.GetEntryWithPageID(render_view_host->GetSiteInstance(), 2168 page_id); 2169 } 2170 if (!entry || entry->GetURL() != validated_source_url) 2171 return; 2172 2173 // Notify observers about the provisional change in the main frame URL. 2174 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2175 ProvisionalChangeToMainFrameUrl(validated_target_url, 2176 render_view_host)); 2177} 2178 2179void WebContentsImpl::DidFailProvisionalLoadWithError( 2180 RenderViewHost* render_view_host, 2181 const ViewHostMsg_DidFailProvisionalLoadWithError_Params& params) { 2182 VLOG(1) << "Failed Provisional Load: " << params.url.possibly_invalid_spec() 2183 << ", error_code: " << params.error_code 2184 << ", error_description: " << params.error_description 2185 << ", is_main_frame: " << params.is_main_frame 2186 << ", showing_repost_interstitial: " << 2187 params.showing_repost_interstitial 2188 << ", frame_id: " << params.frame_id; 2189 GURL validated_url(params.url); 2190 RenderProcessHost* render_process_host = 2191 render_view_host->GetProcess(); 2192 RenderViewHost::FilterURL(render_process_host, false, &validated_url); 2193 2194 if (net::ERR_ABORTED == params.error_code) { 2195 // EVIL HACK ALERT! Ignore failed loads when we're showing interstitials. 2196 // This means that the interstitial won't be torn down properly, which is 2197 // bad. But if we have an interstitial, go back to another tab type, and 2198 // then load the same interstitial again, we could end up getting the first 2199 // interstitial's "failed" message (as a result of the cancel) when we're on 2200 // the second one. 2201 // 2202 // We can't tell this apart, so we think we're tearing down the current page 2203 // which will cause a crash later one. There is also some code in 2204 // RenderViewHostManager::RendererAbortedProvisionalLoad that is commented 2205 // out because of this problem. 2206 // 2207 // http://code.google.com/p/chromium/issues/detail?id=2855 2208 // Because this will not tear down the interstitial properly, if "back" is 2209 // back to another tab type, the interstitial will still be somewhat alive 2210 // in the previous tab type. If you navigate somewhere that activates the 2211 // tab with the interstitial again, you'll see a flash before the new load 2212 // commits of the interstitial page. 2213 if (ShowingInterstitialPage()) { 2214 LOG(WARNING) << "Discarding message during interstitial."; 2215 return; 2216 } 2217 2218 // Do not clear the pending entry if one exists, so that the user's typed 2219 // URL is not lost when a navigation fails or is aborted. We'll allow 2220 // the view to clear the pending entry and typed URL if the user requests. 2221 2222 render_manager_.RendererAbortedProvisionalLoad(render_view_host); 2223 } 2224 2225 FOR_EACH_OBSERVER(WebContentsObserver, 2226 observers_, 2227 DidFailProvisionalLoad(params.frame_id, 2228 params.is_main_frame, 2229 validated_url, 2230 params.error_code, 2231 params.error_description, 2232 render_view_host)); 2233} 2234 2235void WebContentsImpl::OnDidLoadResourceFromMemoryCache( 2236 const GURL& url, 2237 const std::string& security_info, 2238 const std::string& http_method, 2239 const std::string& mime_type, 2240 ResourceType::Type resource_type) { 2241 base::StatsCounter cache("WebKit.CacheHit"); 2242 cache.Increment(); 2243 2244 // Send out a notification that we loaded a resource from our memory cache. 2245 int cert_id = 0; 2246 net::CertStatus cert_status = 0; 2247 int security_bits = -1; 2248 int connection_status = 0; 2249 DeserializeSecurityInfo(security_info, &cert_id, &cert_status, 2250 &security_bits, &connection_status); 2251 LoadFromMemoryCacheDetails details( 2252 url, GetRenderProcessHost()->GetID(), cert_id, cert_status, http_method, 2253 mime_type, resource_type); 2254 2255 NotificationService::current()->Notify( 2256 NOTIFICATION_LOAD_FROM_MEMORY_CACHE, 2257 Source<NavigationController>(&controller_), 2258 Details<LoadFromMemoryCacheDetails>(&details)); 2259} 2260 2261void WebContentsImpl::OnDidDisplayInsecureContent() { 2262 RecordAction(UserMetricsAction("SSL.DisplayedInsecureContent")); 2263 displayed_insecure_content_ = true; 2264 SSLManager::NotifySSLInternalStateChanged( 2265 GetController().GetBrowserContext()); 2266} 2267 2268void WebContentsImpl::OnDidRunInsecureContent( 2269 const std::string& security_origin, const GURL& target_url) { 2270 LOG(INFO) << security_origin << " ran insecure content from " 2271 << target_url.possibly_invalid_spec(); 2272 RecordAction(UserMetricsAction("SSL.RanInsecureContent")); 2273 if (EndsWith(security_origin, kDotGoogleDotCom, false)) 2274 RecordAction(UserMetricsAction("SSL.RanInsecureContentGoogle")); 2275 controller_.ssl_manager()->DidRunInsecureContent(security_origin); 2276 displayed_insecure_content_ = true; 2277 SSLManager::NotifySSLInternalStateChanged( 2278 GetController().GetBrowserContext()); 2279} 2280 2281void WebContentsImpl::OnDocumentLoadedInFrame(int64 frame_id) { 2282 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2283 DocumentLoadedInFrame(frame_id, message_source_)); 2284} 2285 2286void WebContentsImpl::OnDidFinishLoad( 2287 int64 frame_id, 2288 const GURL& url, 2289 bool is_main_frame) { 2290 GURL validated_url(url); 2291 RenderProcessHost* render_process_host = message_source_->GetProcess(); 2292 RenderViewHost::FilterURL(render_process_host, false, &validated_url); 2293 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2294 DidFinishLoad(frame_id, validated_url, is_main_frame, 2295 message_source_)); 2296} 2297 2298void WebContentsImpl::OnDidFailLoadWithError( 2299 int64 frame_id, 2300 const GURL& url, 2301 bool is_main_frame, 2302 int error_code, 2303 const string16& error_description) { 2304 GURL validated_url(url); 2305 RenderProcessHost* render_process_host = message_source_->GetProcess(); 2306 RenderViewHost::FilterURL(render_process_host, false, &validated_url); 2307 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2308 DidFailLoad(frame_id, validated_url, is_main_frame, 2309 error_code, error_description, 2310 message_source_)); 2311} 2312 2313void WebContentsImpl::OnUpdateContentRestrictions(int restrictions) { 2314 content_restrictions_ = restrictions; 2315 if (delegate_) 2316 delegate_->ContentRestrictionsChanged(this); 2317} 2318 2319void WebContentsImpl::OnGoToEntryAtOffset(int offset) { 2320 if (!delegate_ || delegate_->OnGoToEntryOffset(offset)) { 2321 NavigationEntryImpl* entry = NavigationEntryImpl::FromNavigationEntry( 2322 controller_.GetEntryAtOffset(offset)); 2323 if (!entry) 2324 return; 2325 // Note that we don't call NavigationController::GotToOffset() as we don't 2326 // want to create a pending navigation entry (it might end up lingering 2327 // http://crbug.com/51680). 2328 entry->SetTransitionType( 2329 PageTransitionFromInt( 2330 entry->GetTransitionType() | 2331 PAGE_TRANSITION_FORWARD_BACK)); 2332 NavigateToEntry(*entry, NavigationControllerImpl::NO_RELOAD); 2333 2334 // If the entry is being restored and doesn't have a SiteInstance yet, fill 2335 // it in now that we know. This allows us to find the entry when it commits. 2336 if (!entry->site_instance() && 2337 entry->restore_type() != NavigationEntryImpl::RESTORE_NONE) { 2338 entry->set_site_instance( 2339 static_cast<SiteInstanceImpl*>(GetPendingSiteInstance())); 2340 } 2341 } 2342} 2343 2344void WebContentsImpl::OnUpdateZoomLimits(int minimum_percent, 2345 int maximum_percent, 2346 bool remember) { 2347 minimum_zoom_percent_ = minimum_percent; 2348 maximum_zoom_percent_ = maximum_percent; 2349 temporary_zoom_settings_ = !remember; 2350} 2351 2352void WebContentsImpl::OnSaveURL(const GURL& url, 2353 const Referrer& referrer) { 2354 RecordDownloadSource(INITIATED_BY_PEPPER_SAVE); 2355 // Check if the URL to save matches the URL of the main frame. Since this 2356 // message originates from Pepper plugins, it may not be the case if the 2357 // plugin is an embedded element. 2358 GURL main_frame_url = GetURL(); 2359 if (!main_frame_url.is_valid()) 2360 return; 2361 bool is_main_frame = (url == main_frame_url); 2362 SaveURL(url, referrer, is_main_frame); 2363} 2364 2365void WebContentsImpl::OnEnumerateDirectory(int request_id, 2366 const base::FilePath& path) { 2367 if (!delegate_) 2368 return; 2369 2370 ChildProcessSecurityPolicyImpl* policy = 2371 ChildProcessSecurityPolicyImpl::GetInstance(); 2372 if (policy->CanReadDirectory(GetRenderProcessHost()->GetID(), path)) 2373 delegate_->EnumerateDirectory(this, request_id, path); 2374} 2375 2376void WebContentsImpl::OnJSOutOfMemory() { 2377 if (delegate_) 2378 delegate_->JSOutOfMemory(this); 2379} 2380 2381void WebContentsImpl::OnRegisterProtocolHandler(const std::string& protocol, 2382 const GURL& url, 2383 const string16& title, 2384 bool user_gesture) { 2385 if (!delegate_) 2386 return; 2387 2388 ChildProcessSecurityPolicyImpl* policy = 2389 ChildProcessSecurityPolicyImpl::GetInstance(); 2390 if (policy->IsPseudoScheme(protocol)) 2391 return; 2392 2393 delegate_->RegisterProtocolHandler(this, protocol, url, title, user_gesture); 2394} 2395 2396void WebContentsImpl::OnFindReply(int request_id, 2397 int number_of_matches, 2398 const gfx::Rect& selection_rect, 2399 int active_match_ordinal, 2400 bool final_update) { 2401 if (delegate_) { 2402 delegate_->FindReply(this, request_id, number_of_matches, selection_rect, 2403 active_match_ordinal, final_update); 2404 } 2405} 2406 2407void WebContentsImpl::OnDidProgrammaticallyScroll( 2408 const gfx::Vector2d& scroll_point) { 2409 if (delegate_) 2410 delegate_->DidProgrammaticallyScroll(this, scroll_point); 2411} 2412 2413#if defined(OS_ANDROID) 2414void WebContentsImpl::OnFindMatchRectsReply( 2415 int version, 2416 const std::vector<gfx::RectF>& rects, 2417 const gfx::RectF& active_rect) { 2418 if (delegate_) 2419 delegate_->FindMatchRectsReply(this, version, rects, active_rect); 2420} 2421 2422void WebContentsImpl::OnOpenDateTimeDialog( 2423 const ViewHostMsg_DateTimeDialogValue_Params& value) { 2424 date_time_chooser_->ShowDialog( 2425 ContentViewCore::FromWebContents(this), GetRenderViewHost(), 2426 value.dialog_type, value.year, value.month, value.day, value.hour, 2427 value.minute, value.second, value.week, value.minimum, value.maximum); 2428} 2429 2430#endif 2431 2432void WebContentsImpl::OnCrashedPlugin(const base::FilePath& plugin_path, 2433 base::ProcessId plugin_pid) { 2434 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2435 PluginCrashed(plugin_path, plugin_pid)); 2436} 2437 2438void WebContentsImpl::OnAppCacheAccessed(const GURL& manifest_url, 2439 bool blocked_by_policy) { 2440 // Notify observers about navigation. 2441 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2442 AppCacheAccessed(manifest_url, blocked_by_policy)); 2443} 2444 2445void WebContentsImpl::OnOpenColorChooser(int color_chooser_id, 2446 SkColor color) { 2447 ColorChooser* new_color_chooser = delegate_->OpenColorChooser(this, color); 2448 if (color_chooser_ == new_color_chooser) 2449 return; 2450 color_chooser_.reset(new_color_chooser); 2451 color_chooser_identifier_ = color_chooser_id; 2452} 2453 2454void WebContentsImpl::OnEndColorChooser(int color_chooser_id) { 2455 if (color_chooser_ && 2456 color_chooser_id == color_chooser_identifier_) 2457 color_chooser_->End(); 2458} 2459 2460void WebContentsImpl::OnSetSelectedColorInColorChooser(int color_chooser_id, 2461 SkColor color) { 2462 if (color_chooser_ && 2463 color_chooser_id == color_chooser_identifier_) 2464 color_chooser_->SetSelectedColor(color); 2465} 2466 2467void WebContentsImpl::OnPepperPluginHung(int plugin_child_id, 2468 const base::FilePath& path, 2469 bool is_hung) { 2470 UMA_HISTOGRAM_COUNTS("Pepper.PluginHung", 1); 2471 2472 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2473 PluginHungStatusChanged(plugin_child_id, path, is_hung)); 2474} 2475 2476// This exists for render views that don't have a WebUI, but do have WebUI 2477// bindings enabled. 2478void WebContentsImpl::OnWebUISend(const GURL& source_url, 2479 const std::string& name, 2480 const base::ListValue& args) { 2481 if (delegate_) 2482 delegate_->WebUISend(this, source_url, name, args); 2483} 2484 2485void WebContentsImpl::OnRequestPpapiBrokerPermission( 2486 int request_id, 2487 const GURL& url, 2488 const base::FilePath& plugin_path) { 2489 if (!delegate_) { 2490 OnPpapiBrokerPermissionResult(request_id, false); 2491 return; 2492 } 2493 2494 if (!delegate_->RequestPpapiBrokerPermission( 2495 this, url, plugin_path, 2496 base::Bind(&WebContentsImpl::OnPpapiBrokerPermissionResult, 2497 base::Unretained(this), request_id))) { 2498 NOTIMPLEMENTED(); 2499 OnPpapiBrokerPermissionResult(request_id, false); 2500 } 2501} 2502 2503void WebContentsImpl::OnPpapiBrokerPermissionResult(int request_id, 2504 bool result) { 2505 RenderViewHostImpl* rvh = GetRenderViewHostImpl(); 2506 rvh->Send(new ViewMsg_PpapiBrokerPermissionResult(rvh->GetRoutingID(), 2507 request_id, 2508 result)); 2509} 2510 2511void WebContentsImpl::OnBrowserPluginMessage(const IPC::Message& message) { 2512 // This creates a BrowserPluginEmbedder, which handles all the BrowserPlugin 2513 // specific messages for this WebContents. This means that any message from 2514 // a BrowserPlugin prior to this will be ignored. 2515 // For more info, see comment above classes BrowserPluginEmbedder and 2516 // BrowserPluginGuest. 2517 CHECK(!browser_plugin_embedder_.get()); 2518 browser_plugin_embedder_.reset(BrowserPluginEmbedder::Create(this)); 2519 browser_plugin_embedder_->OnMessageReceived(message); 2520} 2521 2522void WebContentsImpl::OnDidDownloadImage( 2523 int id, 2524 int http_status_code, 2525 const GURL& image_url, 2526 int requested_size, 2527 const std::vector<SkBitmap>& bitmaps) { 2528 ImageDownloadMap::iterator iter = image_download_map_.find(id); 2529 if (iter == image_download_map_.end()) { 2530 // Currently WebContents notifies us of ANY downloads so that it is 2531 // possible to get here. 2532 return; 2533 } 2534 if (!iter->second.is_null()) { 2535 iter->second.Run(id, http_status_code, image_url, requested_size, bitmaps); 2536 } 2537 image_download_map_.erase(id); 2538} 2539 2540void WebContentsImpl::OnUpdateFaviconURL( 2541 int32 page_id, 2542 const std::vector<FaviconURL>& candidates) { 2543 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2544 DidUpdateFaviconURL(page_id, candidates)); 2545} 2546 2547FrameTreeNode* WebContentsImpl::FindFrameTreeNodeByID(int64 frame_id) { 2548 // TODO(nasko): Remove this check once we move to creating the root node 2549 // through RenderFrameHost creation. 2550 if (!frame_tree_root_.get()) 2551 return NULL; 2552 2553 FrameTreeNode* node = NULL; 2554 std::queue<FrameTreeNode*> queue; 2555 queue.push(frame_tree_root_.get()); 2556 2557 while (!queue.empty()) { 2558 node = queue.front(); 2559 queue.pop(); 2560 if (node->frame_id() == frame_id) 2561 return node; 2562 2563 for (size_t i = 0; i < node->child_count(); ++i) 2564 queue.push(node->child_at(i)); 2565 } 2566 2567 return NULL; 2568} 2569 2570void WebContentsImpl::OnFrameAttached( 2571 int64 parent_frame_id, 2572 int64 frame_id, 2573 const std::string& frame_name) { 2574 FrameTreeNode* parent = FindFrameTreeNodeByID(parent_frame_id); 2575 if (!parent) 2576 return; 2577 2578 FrameTreeNode* node = new FrameTreeNode(frame_id, frame_name); 2579 parent->AddChild(node); 2580} 2581 2582void WebContentsImpl::OnFrameDetached(int64 parent_frame_id, int64 frame_id) { 2583 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2584 FrameDetached(message_source_, frame_id)); 2585 2586 FrameTreeNode* parent = FindFrameTreeNodeByID(parent_frame_id); 2587 if (!parent) 2588 return; 2589 2590 parent->RemoveChild(frame_id); 2591} 2592 2593void WebContentsImpl::DidChangeVisibleSSLState() { 2594 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2595 DidChangeVisibleSSLState()); 2596} 2597 2598void WebContentsImpl::NotifyBeforeFormRepostWarningShow() { 2599 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2600 BeforeFormRepostWarningShow()); 2601} 2602 2603// Notifies the RenderWidgetHost instance about the fact that the page is 2604// loading, or done loading and calls the base implementation. 2605void WebContentsImpl::SetIsLoading(bool is_loading, 2606 LoadNotificationDetails* details) { 2607 if (is_loading == is_loading_) 2608 return; 2609 2610 if (!is_loading) { 2611 load_state_ = net::LoadStateWithParam(net::LOAD_STATE_IDLE, string16()); 2612 load_state_host_.clear(); 2613 upload_size_ = 0; 2614 upload_position_ = 0; 2615 } 2616 2617 render_manager_.SetIsLoading(is_loading); 2618 2619 is_loading_ = is_loading; 2620 waiting_for_response_ = is_loading; 2621 2622 if (delegate_) 2623 delegate_->LoadingStateChanged(this); 2624 NotifyNavigationStateChanged(INVALIDATE_TYPE_LOAD); 2625 2626 if (is_loading) 2627 TRACE_EVENT_ASYNC_BEGIN0("browser", "WebContentsImpl Loading", this); 2628 else 2629 TRACE_EVENT_ASYNC_END0("browser", "WebContentsImpl Loading", this); 2630 int type = is_loading ? NOTIFICATION_LOAD_START : NOTIFICATION_LOAD_STOP; 2631 NotificationDetails det = NotificationService::NoDetails(); 2632 if (details) 2633 det = Details<LoadNotificationDetails>(details); 2634 NotificationService::current()->Notify( 2635 type, Source<NavigationController>(&controller_), det); 2636} 2637 2638void WebContentsImpl::DidNavigateMainFramePostCommit( 2639 const LoadCommittedDetails& details, 2640 const ViewHostMsg_FrameNavigate_Params& params) { 2641 if (details.is_navigation_to_different_page()) { 2642 // Clear the status bubble. This is a workaround for a bug where WebKit 2643 // doesn't let us know that the cursor left an element during a 2644 // transition (this is also why the mouse cursor remains as a hand after 2645 // clicking on a link); see bugs 1184641 and 980803. We don't want to 2646 // clear the bubble when a user navigates to a named anchor in the same 2647 // page. 2648 UpdateTargetURL(details.entry->GetPageID(), GURL()); 2649 } 2650 2651 if (!details.is_in_page) { 2652 // Once the main frame is navigated, we're no longer considered to have 2653 // displayed insecure content. 2654 displayed_insecure_content_ = false; 2655 } 2656 2657 // Notify observers about navigation. 2658 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2659 DidNavigateMainFrame(details, params)); 2660} 2661 2662void WebContentsImpl::DidNavigateAnyFramePostCommit( 2663 RenderViewHost* render_view_host, 2664 const LoadCommittedDetails& details, 2665 const ViewHostMsg_FrameNavigate_Params& params) { 2666 // If we navigate off the page, reset JavaScript state. This does nothing 2667 // to prevent a malicious script from spamming messages, since the script 2668 // could just reload the page to stop blocking. 2669 if (dialog_manager_ && !details.is_in_page) { 2670 dialog_manager_->ResetJavaScriptState(this); 2671 dialog_manager_ = NULL; 2672 } 2673 2674 // Notify observers about navigation. 2675 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2676 DidNavigateAnyFrame(details, params)); 2677} 2678 2679bool WebContentsImpl::ShouldAssignSiteForURL(const GURL& url) { 2680 // Neither about:blank nor the chrome-native: scheme should "use up" a new 2681 // SiteInstance. In both cases, the SiteInstance can still be used for a 2682 // normal web site. 2683 return !url.SchemeIs(chrome::kChromeNativeScheme) && 2684 url != GURL(kAboutBlankURL); 2685} 2686 2687void WebContentsImpl::UpdateMaxPageIDIfNecessary(RenderViewHost* rvh) { 2688 // If we are creating a RVH for a restored controller, then we need to make 2689 // sure the RenderView starts with a next_page_id_ larger than the number 2690 // of restored entries. This must be called before the RenderView starts 2691 // navigating (to avoid a race between the browser updating max_page_id and 2692 // the renderer updating next_page_id_). Because of this, we only call this 2693 // from CreateRenderView and allow that to notify the RenderView for us. 2694 int max_restored_page_id = controller_.GetMaxRestoredPageID(); 2695 if (max_restored_page_id > 2696 GetMaxPageIDForSiteInstance(rvh->GetSiteInstance())) 2697 UpdateMaxPageIDForSiteInstance(rvh->GetSiteInstance(), 2698 max_restored_page_id); 2699} 2700 2701bool WebContentsImpl::UpdateTitleForEntry(NavigationEntryImpl* entry, 2702 const string16& title) { 2703 // For file URLs without a title, use the pathname instead. In the case of a 2704 // synthesized title, we don't want the update to count toward the "one set 2705 // per page of the title to history." 2706 string16 final_title; 2707 bool explicit_set; 2708 if (entry && entry->GetURL().SchemeIsFile() && title.empty()) { 2709 final_title = UTF8ToUTF16(entry->GetURL().ExtractFileName()); 2710 explicit_set = false; // Don't count synthetic titles toward the set limit. 2711 } else { 2712 TrimWhitespace(title, TRIM_ALL, &final_title); 2713 explicit_set = true; 2714 } 2715 2716 // If a page is created via window.open and never navigated, 2717 // there will be no navigation entry. In this situation, 2718 // |page_title_when_no_navigation_entry_| will be used for page title. 2719 if (entry) { 2720 if (final_title == entry->GetTitle()) 2721 return false; // Nothing changed, don't bother. 2722 2723 entry->SetTitle(final_title); 2724 } else { 2725 if (page_title_when_no_navigation_entry_ == final_title) 2726 return false; // Nothing changed, don't bother. 2727 2728 page_title_when_no_navigation_entry_ = final_title; 2729 } 2730 2731 // Lastly, set the title for the view. 2732 view_->SetPageTitle(final_title); 2733 2734 std::pair<NavigationEntry*, bool> details = 2735 std::make_pair(entry, explicit_set); 2736 2737 NotificationService::current()->Notify( 2738 NOTIFICATION_WEB_CONTENTS_TITLE_UPDATED, 2739 Source<WebContents>(this), 2740 Details<std::pair<NavigationEntry*, bool> >(&details)); 2741 2742 return true; 2743} 2744 2745void WebContentsImpl::NotifySwapped(RenderViewHost* old_render_view_host) { 2746 // After sending out a swap notification, we need to send a disconnect 2747 // notification so that clients that pick up a pointer to |this| can NULL the 2748 // pointer. See Bug 1230284. 2749 notify_disconnection_ = true; 2750 NotificationService::current()->Notify( 2751 NOTIFICATION_WEB_CONTENTS_SWAPPED, 2752 Source<WebContents>(this), 2753 Details<RenderViewHost>(old_render_view_host)); 2754 2755 // Ensure that the associated embedder gets cleared after a RenderViewHost 2756 // gets swapped, so we don't reuse the same embedder next time a 2757 // RenderViewHost is attached to this WebContents. 2758 RemoveBrowserPluginEmbedder(); 2759} 2760 2761void WebContentsImpl::NotifyConnected() { 2762 notify_disconnection_ = true; 2763 NotificationService::current()->Notify( 2764 NOTIFICATION_WEB_CONTENTS_CONNECTED, 2765 Source<WebContents>(this), 2766 NotificationService::NoDetails()); 2767} 2768 2769void WebContentsImpl::NotifyDisconnected() { 2770 if (!notify_disconnection_) 2771 return; 2772 2773 notify_disconnection_ = false; 2774 NotificationService::current()->Notify( 2775 NOTIFICATION_WEB_CONTENTS_DISCONNECTED, 2776 Source<WebContents>(this), 2777 NotificationService::NoDetails()); 2778} 2779 2780void WebContentsImpl::NotifyNavigationEntryCommitted( 2781 const LoadCommittedDetails& load_details) { 2782 FOR_EACH_OBSERVER( 2783 WebContentsObserver, observers_, NavigationEntryCommitted(load_details)); 2784} 2785 2786RenderViewHostDelegateView* WebContentsImpl::GetDelegateView() { 2787 return render_view_host_delegate_view_; 2788} 2789 2790RenderViewHostDelegate::RendererManagement* 2791WebContentsImpl::GetRendererManagementDelegate() { 2792 return &render_manager_; 2793} 2794 2795RendererPreferences WebContentsImpl::GetRendererPrefs( 2796 BrowserContext* browser_context) const { 2797 return renderer_preferences_; 2798} 2799 2800WebContents* WebContentsImpl::GetAsWebContents() { 2801 return this; 2802} 2803 2804gfx::Rect WebContentsImpl::GetRootWindowResizerRect() const { 2805 if (delegate_) 2806 return delegate_->GetRootWindowResizerRect(); 2807 return gfx::Rect(); 2808} 2809 2810void WebContentsImpl::RemoveBrowserPluginEmbedder() { 2811 if (browser_plugin_embedder_) 2812 browser_plugin_embedder_.reset(); 2813} 2814 2815void WebContentsImpl::RenderViewCreated(RenderViewHost* render_view_host) { 2816 // Don't send notifications if we are just creating a swapped-out RVH for 2817 // the opener chain. These won't be used for view-source or WebUI, so it's 2818 // ok to return early. 2819 if (static_cast<RenderViewHostImpl*>(render_view_host)->is_swapped_out()) 2820 return; 2821 2822 if (delegate_) 2823 view_->SetOverscrollControllerEnabled(delegate_->CanOverscrollContent()); 2824 2825 NotificationService::current()->Notify( 2826 NOTIFICATION_WEB_CONTENTS_RENDER_VIEW_HOST_CREATED, 2827 Source<WebContents>(this), 2828 Details<RenderViewHost>(render_view_host)); 2829 NavigationEntry* entry = controller_.GetActiveEntry(); 2830 if (!entry) 2831 return; 2832 2833 // When we're creating views, we're still doing initial setup, so we always 2834 // use the pending Web UI rather than any possibly existing committed one. 2835 if (render_manager_.pending_web_ui()) 2836 render_manager_.pending_web_ui()->RenderViewCreated(render_view_host); 2837 2838 if (entry->IsViewSourceMode()) { 2839 // Put the renderer in view source mode. 2840 render_view_host->Send( 2841 new ViewMsg_EnableViewSourceMode(render_view_host->GetRoutingID())); 2842 } 2843 2844 view_->RenderViewCreated(render_view_host); 2845 2846 FOR_EACH_OBSERVER( 2847 WebContentsObserver, observers_, RenderViewCreated(render_view_host)); 2848} 2849 2850void WebContentsImpl::RenderViewReady(RenderViewHost* rvh) { 2851 if (rvh != GetRenderViewHost()) { 2852 // Don't notify the world, since this came from a renderer in the 2853 // background. 2854 return; 2855 } 2856 2857 NotifyConnected(); 2858 bool was_crashed = IsCrashed(); 2859 SetIsCrashed(base::TERMINATION_STATUS_STILL_RUNNING, 0); 2860 2861 // Restore the focus to the tab (otherwise the focus will be on the top 2862 // window). 2863 if (was_crashed && !FocusLocationBarByDefault() && 2864 (!delegate_ || delegate_->ShouldFocusPageAfterCrash())) { 2865 view_->Focus(); 2866 } 2867 2868 FOR_EACH_OBSERVER(WebContentsObserver, observers_, RenderViewReady()); 2869} 2870 2871void WebContentsImpl::RenderViewTerminated(RenderViewHost* rvh, 2872 base::TerminationStatus status, 2873 int error_code) { 2874 if (rvh != GetRenderViewHost()) { 2875 // The pending page's RenderViewHost is gone. 2876 return; 2877 } 2878 2879 SetIsLoading(false, NULL); 2880 NotifyDisconnected(); 2881 SetIsCrashed(status, error_code); 2882 GetView()->OnTabCrashed(GetCrashedStatus(), crashed_error_code_); 2883 2884 FOR_EACH_OBSERVER(WebContentsObserver, 2885 observers_, 2886 RenderViewGone(GetCrashedStatus())); 2887} 2888 2889void WebContentsImpl::RenderViewDeleted(RenderViewHost* rvh) { 2890 render_manager_.RenderViewDeleted(rvh); 2891 FOR_EACH_OBSERVER(WebContentsObserver, observers_, RenderViewDeleted(rvh)); 2892} 2893 2894void WebContentsImpl::DidNavigate( 2895 RenderViewHost* rvh, 2896 const ViewHostMsg_FrameNavigate_Params& params) { 2897 // If we don't have a frame tree root yet, this is the first navigation in 2898 // using the current RenderViewHost, so we need to create it with the proper 2899 // frame id. 2900 if (!frame_tree_root_.get()) { 2901 DCHECK(PageTransitionIsMainFrame(params.transition)); 2902 frame_tree_root_.reset(new FrameTreeNode(params.frame_id, std::string())); 2903 } 2904 2905 if (PageTransitionIsMainFrame(params.transition)) { 2906 // When overscroll navigation gesture is enabled, a screenshot of the page 2907 // in its current state is taken so that it can be used during the 2908 // nav-gesture. It is necessary to take the screenshot here, before calling 2909 // RenderViewHostManager::DidNavigateMainFrame, because that can change 2910 // WebContents::GetRenderViewHost to return the new host, instead of the one 2911 // that may have just been swapped out. 2912 if (delegate_ && delegate_->CanOverscrollContent()) 2913 controller_.TakeScreenshot(); 2914 2915 render_manager_.DidNavigateMainFrame(rvh); 2916 } 2917 2918 // We expect to have a valid frame tree root node at all times when 2919 // navigating. 2920 DCHECK(frame_tree_root_.get()); 2921 2922 // Update the site of the SiteInstance if it doesn't have one yet, unless 2923 // assigning a site is not necessary for this URL. In that case, the 2924 // SiteInstance can still be considered unused until a navigation to a real 2925 // page. 2926 if (!static_cast<SiteInstanceImpl*>(GetSiteInstance())->HasSite() && 2927 ShouldAssignSiteForURL(params.url)) { 2928 static_cast<SiteInstanceImpl*>(GetSiteInstance())->SetSite(params.url); 2929 } 2930 2931 // Need to update MIME type here because it's referred to in 2932 // UpdateNavigationCommands() called by RendererDidNavigate() to 2933 // determine whether or not to enable the encoding menu. 2934 // It's updated only for the main frame. For a subframe, 2935 // RenderView::UpdateURL does not set params.contents_mime_type. 2936 // (see http://code.google.com/p/chromium/issues/detail?id=2929 ) 2937 // TODO(jungshik): Add a test for the encoding menu to avoid 2938 // regressing it again. 2939 if (PageTransitionIsMainFrame(params.transition)) 2940 contents_mime_type_ = params.contents_mime_type; 2941 2942 LoadCommittedDetails details; 2943 bool did_navigate = controller_.RendererDidNavigate(params, &details); 2944 2945 // For now, keep track of each frame's URL in its FrameTreeNode. This lets 2946 // us estimate our process count for implementing OOP iframes. 2947 // TODO(creis): Remove this when we track which pages commit in each frame. 2948 FrameTreeNode* node = FindFrameTreeNodeByID(params.frame_id); 2949 if (node) 2950 node->set_current_url(params.url); 2951 2952 // Send notification about committed provisional loads. This notification is 2953 // different from the NAV_ENTRY_COMMITTED notification which doesn't include 2954 // the actual URL navigated to and isn't sent for AUTO_SUBFRAME navigations. 2955 if (details.type != NAVIGATION_TYPE_NAV_IGNORE) { 2956 // For AUTO_SUBFRAME navigations, an event for the main frame is generated 2957 // that is not recorded in the navigation history. For the purpose of 2958 // tracking navigation events, we treat this event as a sub frame navigation 2959 // event. 2960 bool is_main_frame = did_navigate ? details.is_main_frame : false; 2961 PageTransition transition_type = params.transition; 2962 // Whether or not a page transition was triggered by going backward or 2963 // forward in the history is only stored in the navigation controller's 2964 // entry list. 2965 if (did_navigate && 2966 (controller_.GetActiveEntry()->GetTransitionType() & 2967 PAGE_TRANSITION_FORWARD_BACK)) { 2968 transition_type = PageTransitionFromInt( 2969 params.transition | PAGE_TRANSITION_FORWARD_BACK); 2970 } 2971 // Notify observers about the commit of the provisional load. 2972 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 2973 DidCommitProvisionalLoadForFrame(params.frame_id, 2974 is_main_frame, params.url, transition_type, rvh)); 2975 } 2976 2977 if (!did_navigate) 2978 return; // No navigation happened. 2979 2980 // DO NOT ADD MORE STUFF TO THIS FUNCTION! Your component should either listen 2981 // for the appropriate notification (best) or you can add it to 2982 // DidNavigateMainFramePostCommit / DidNavigateAnyFramePostCommit (only if 2983 // necessary, please). 2984 2985 // Run post-commit tasks. 2986 if (details.is_main_frame) { 2987 DidNavigateMainFramePostCommit(details, params); 2988 if (delegate_) { 2989 delegate_->DidNavigateMainFramePostCommit(this); 2990 view_->SetOverscrollControllerEnabled(delegate_->CanOverscrollContent()); 2991 } 2992 } 2993 DidNavigateAnyFramePostCommit(rvh, details, params); 2994} 2995 2996void WebContentsImpl::UpdateState(RenderViewHost* rvh, 2997 int32 page_id, 2998 const PageState& page_state) { 2999 // Ensure that this state update comes from either the active RVH or one of 3000 // the swapped out RVHs. We don't expect to hear from any other RVHs. 3001 DCHECK(rvh == GetRenderViewHost() || render_manager_.IsOnSwappedOutList(rvh)); 3002 3003 // We must be prepared to handle state updates for any page, these occur 3004 // when the user is scrolling and entering form data, as well as when we're 3005 // leaving a page, in which case our state may have already been moved to 3006 // the next page. The navigation controller will look up the appropriate 3007 // NavigationEntry and update it when it is notified via the delegate. 3008 3009 int entry_index = controller_.GetEntryIndexWithPageID( 3010 rvh->GetSiteInstance(), page_id); 3011 if (entry_index < 0) 3012 return; 3013 NavigationEntry* entry = controller_.GetEntryAtIndex(entry_index); 3014 3015 if (page_state == entry->GetPageState()) 3016 return; // Nothing to update. 3017 entry->SetPageState(page_state); 3018 controller_.NotifyEntryChanged(entry, entry_index); 3019} 3020 3021void WebContentsImpl::UpdateTitle(RenderViewHost* rvh, 3022 int32 page_id, 3023 const string16& title, 3024 base::i18n::TextDirection title_direction) { 3025 // If we have a title, that's a pretty good indication that we've started 3026 // getting useful data. 3027 SetNotWaitingForResponse(); 3028 3029 // Try to find the navigation entry, which might not be the current one. 3030 // For example, it might be from a pending RVH for the pending entry. 3031 NavigationEntryImpl* entry = controller_.GetEntryWithPageID( 3032 rvh->GetSiteInstance(), page_id); 3033 3034 // We can handle title updates when we don't have an entry in 3035 // UpdateTitleForEntry, but only if the update is from the current RVH. 3036 if (!entry && rvh != GetRenderViewHost()) 3037 return; 3038 3039 // TODO(evan): make use of title_direction. 3040 // http://code.google.com/p/chromium/issues/detail?id=27094 3041 if (!UpdateTitleForEntry(entry, title)) 3042 return; 3043 3044 // Broadcast notifications when the UI should be updated. 3045 if (entry == controller_.GetEntryAtOffset(0)) 3046 NotifyNavigationStateChanged(INVALIDATE_TYPE_TITLE); 3047} 3048 3049void WebContentsImpl::UpdateEncoding(RenderViewHost* render_view_host, 3050 const std::string& encoding) { 3051 SetEncoding(encoding); 3052} 3053 3054void WebContentsImpl::UpdateTargetURL(int32 page_id, const GURL& url) { 3055 if (delegate_) 3056 delegate_->UpdateTargetURL(this, page_id, url); 3057} 3058 3059void WebContentsImpl::Close(RenderViewHost* rvh) { 3060#if defined(OS_MACOSX) 3061 // The UI may be in an event-tracking loop, such as between the 3062 // mouse-down and mouse-up in text selection or a button click. 3063 // Defer the close until after tracking is complete, so that we 3064 // don't free objects out from under the UI. 3065 // TODO(shess): This could get more fine-grained. For instance, 3066 // closing a tab in another window while selecting text in the 3067 // current window's Omnibox should be just fine. 3068 if (view_->IsEventTracking()) { 3069 view_->CloseTabAfterEventTracking(); 3070 return; 3071 } 3072#endif 3073 3074 // Ignore this if it comes from a RenderViewHost that we aren't showing. 3075 if (delegate_ && rvh == GetRenderViewHost()) 3076 delegate_->CloseContents(this); 3077} 3078 3079void WebContentsImpl::SwappedOut(RenderViewHost* rvh) { 3080 if (delegate_ && rvh == GetRenderViewHost()) 3081 delegate_->SwappedOut(this); 3082 3083 // Allow the navigation to proceed. 3084 render_manager_.SwappedOut(rvh); 3085} 3086 3087void WebContentsImpl::RequestMove(const gfx::Rect& new_bounds) { 3088 if (delegate_ && delegate_->IsPopupOrPanel(this)) 3089 delegate_->MoveContents(this, new_bounds); 3090} 3091 3092void WebContentsImpl::DidStartLoading(RenderViewHost* render_view_host) { 3093 SetIsLoading(true, NULL); 3094 3095 if (delegate_ && content_restrictions_) 3096 OnUpdateContentRestrictions(0); 3097 3098 // Notify observers about navigation. 3099 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 3100 DidStartLoading(render_view_host)); 3101} 3102 3103void WebContentsImpl::DidStopLoading(RenderViewHost* render_view_host) { 3104 scoped_ptr<LoadNotificationDetails> details; 3105 3106 // Use the last committed entry rather than the active one, in case a 3107 // pending entry has been created. 3108 NavigationEntry* entry = controller_.GetLastCommittedEntry(); 3109 3110 // An entry may not exist for a stop when loading an initial blank page or 3111 // if an iframe injected by script into a blank page finishes loading. 3112 if (entry) { 3113 base::TimeDelta elapsed = base::TimeTicks::Now() - current_load_start_; 3114 3115 details.reset(new LoadNotificationDetails( 3116 entry->GetVirtualURL(), 3117 entry->GetTransitionType(), 3118 elapsed, 3119 &controller_, 3120 controller_.GetCurrentEntryIndex())); 3121 } 3122 3123 SetIsLoading(false, details.get()); 3124 3125 // Notify observers about navigation. 3126 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 3127 DidStopLoading(render_view_host)); 3128} 3129 3130void WebContentsImpl::DidCancelLoading() { 3131 controller_.DiscardNonCommittedEntries(); 3132 3133 // Update the URL display. 3134 NotifyNavigationStateChanged(INVALIDATE_TYPE_URL); 3135} 3136 3137void WebContentsImpl::DidChangeLoadProgress(double progress) { 3138#if defined(OS_ANDROID) 3139 if (delegate_) 3140 delegate_->LoadProgressChanged(this, progress); 3141#endif 3142} 3143 3144void WebContentsImpl::DidDisownOpener(RenderViewHost* rvh) { 3145 if (opener_) { 3146 // Clear our opener so that future cross-process navigations don't have an 3147 // opener assigned. 3148 RemoveDestructionObserver(opener_); 3149 opener_ = NULL; 3150 } 3151 3152 // Notify all swapped out RenderViewHosts for this tab. This is important 3153 // in case we go back to them, or if another window in those processes tries 3154 // to access window.opener. 3155 render_manager_.DidDisownOpener(rvh); 3156} 3157 3158void WebContentsImpl::DidAccessInitialDocument() { 3159 // Update the URL display. 3160 NotifyNavigationStateChanged(content::INVALIDATE_TYPE_URL); 3161} 3162 3163void WebContentsImpl::DocumentAvailableInMainFrame( 3164 RenderViewHost* render_view_host) { 3165 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 3166 DocumentAvailableInMainFrame()); 3167} 3168 3169void WebContentsImpl::DocumentOnLoadCompletedInMainFrame( 3170 RenderViewHost* render_view_host, 3171 int32 page_id) { 3172 NotificationService::current()->Notify( 3173 NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME, 3174 Source<WebContents>(this), 3175 Details<int>(&page_id)); 3176} 3177 3178void WebContentsImpl::RequestOpenURL(RenderViewHost* rvh, 3179 const GURL& url, 3180 const Referrer& referrer, 3181 WindowOpenDisposition disposition, 3182 int64 source_frame_id, 3183 bool is_cross_site_redirect) { 3184 // If this came from a swapped out RenderViewHost, we only allow the request 3185 // if we are still in the same BrowsingInstance. 3186 if (static_cast<RenderViewHostImpl*>(rvh)->is_swapped_out() && 3187 !rvh->GetSiteInstance()->IsRelatedSiteInstance(GetSiteInstance())) { 3188 return; 3189 } 3190 3191 // Delegate to RequestTransferURL because this is just the generic 3192 // case where |old_request_id| is empty. 3193 RequestTransferURL(url, referrer, disposition, source_frame_id, 3194 GlobalRequestID(), is_cross_site_redirect); 3195} 3196 3197void WebContentsImpl::RequestTransferURL( 3198 const GURL& url, 3199 const Referrer& referrer, 3200 WindowOpenDisposition disposition, 3201 int64 source_frame_id, 3202 const GlobalRequestID& old_request_id, 3203 bool is_cross_site_redirect) { 3204 WebContents* new_contents = NULL; 3205 PageTransition transition_type = PAGE_TRANSITION_LINK; 3206 if (render_manager_.web_ui()) { 3207 // When we're a Web UI, it will provide a page transition type for us (this 3208 // is so the new tab page can specify AUTO_BOOKMARK for automatically 3209 // generated suggestions). 3210 // 3211 // Note also that we hide the referrer for Web UI pages. We don't really 3212 // want web sites to see a referrer of "chrome://blah" (and some 3213 // chrome: URLs might have search terms or other stuff we don't want to 3214 // send to the site), so we send no referrer. 3215 OpenURLParams params(url, Referrer(), source_frame_id, disposition, 3216 render_manager_.web_ui()->GetLinkTransitionType(), 3217 false /* is_renderer_initiated */); 3218 params.transferred_global_request_id = old_request_id; 3219 new_contents = OpenURL(params); 3220 transition_type = render_manager_.web_ui()->GetLinkTransitionType(); 3221 } else { 3222 OpenURLParams params(url, referrer, source_frame_id, disposition, 3223 PAGE_TRANSITION_LINK, true /* is_renderer_initiated */); 3224 params.transferred_global_request_id = old_request_id; 3225 params.is_cross_site_redirect = is_cross_site_redirect; 3226 new_contents = OpenURL(params); 3227 } 3228 if (new_contents) { 3229 // Notify observers. 3230 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 3231 DidOpenRequestedURL(new_contents, 3232 url, 3233 referrer, 3234 disposition, 3235 transition_type, 3236 source_frame_id)); 3237 } 3238} 3239 3240void WebContentsImpl::RouteCloseEvent(RenderViewHost* rvh) { 3241 // Tell the active RenderViewHost to run unload handlers and close, as long 3242 // as the request came from a RenderViewHost in the same BrowsingInstance. 3243 // In most cases, we receive this from a swapped out RenderViewHost. 3244 // It is possible to receive it from one that has just been swapped in, 3245 // in which case we might as well deliver the message anyway. 3246 if (rvh->GetSiteInstance()->IsRelatedSiteInstance(GetSiteInstance())) 3247 GetRenderViewHost()->ClosePage(); 3248} 3249 3250void WebContentsImpl::RouteMessageEvent( 3251 RenderViewHost* rvh, 3252 const ViewMsg_PostMessage_Params& params) { 3253 // Only deliver the message to the active RenderViewHost if the request 3254 // came from a RenderViewHost in the same BrowsingInstance or if this 3255 // WebContents is dedicated to a browser plugin guest. 3256 // Note: This check means that an embedder could theoretically receive a 3257 // postMessage from anyone (not just its own guests). However, this is 3258 // probably not a risk for apps since other pages won't have references 3259 // to App windows. 3260 if (!rvh->GetSiteInstance()->IsRelatedSiteInstance(GetSiteInstance()) && 3261 !GetBrowserPluginGuest() && !GetBrowserPluginEmbedder()) 3262 return; 3263 3264 ViewMsg_PostMessage_Params new_params(params); 3265 3266 // If there is a source_routing_id, translate it to the routing ID for 3267 // the equivalent swapped out RVH in the target process. If we need 3268 // to create a swapped out RVH for the source tab, we create its opener 3269 // chain as well, since those will also be accessible to the target page. 3270 if (new_params.source_routing_id != MSG_ROUTING_NONE) { 3271 // Try to look up the WebContents for the source page. 3272 WebContentsImpl* source_contents = NULL; 3273 RenderViewHostImpl* source_rvh = RenderViewHostImpl::FromID( 3274 rvh->GetProcess()->GetID(), params.source_routing_id); 3275 if (source_rvh) { 3276 source_contents = static_cast<WebContentsImpl*>( 3277 source_rvh->GetDelegate()->GetAsWebContents()); 3278 } 3279 3280 if (source_contents) { 3281 if (GetBrowserPluginGuest()) { 3282 // We create a swapped out RenderView for the embedder in the guest's 3283 // render process but we intentionally do not expose the embedder's 3284 // opener chain to it. 3285 new_params.source_routing_id = 3286 source_contents->CreateSwappedOutRenderView(GetSiteInstance()); 3287 } else { 3288 new_params.source_routing_id = 3289 source_contents->CreateOpenerRenderViews(GetSiteInstance()); 3290 } 3291 } else { 3292 // We couldn't find it, so don't pass a source frame. 3293 new_params.source_routing_id = MSG_ROUTING_NONE; 3294 } 3295 } 3296 3297 // In most cases, we receive this from a swapped out RenderViewHost. 3298 // It is possible to receive it from one that has just been swapped in, 3299 // in which case we might as well deliver the message anyway. 3300 Send(new ViewMsg_PostMessageEvent(GetRoutingID(), new_params)); 3301} 3302 3303void WebContentsImpl::RunJavaScriptMessage( 3304 RenderViewHost* rvh, 3305 const string16& message, 3306 const string16& default_prompt, 3307 const GURL& frame_url, 3308 JavaScriptMessageType javascript_message_type, 3309 IPC::Message* reply_msg, 3310 bool* did_suppress_message) { 3311 // Suppress JavaScript dialogs when requested. Also suppress messages when 3312 // showing an interstitial as it's shown over the previous page and we don't 3313 // want the hidden page's dialogs to interfere with the interstitial. 3314 bool suppress_this_message = 3315 static_cast<RenderViewHostImpl*>(rvh)->is_swapped_out() || 3316 ShowingInterstitialPage() || 3317 !delegate_ || 3318 delegate_->ShouldSuppressDialogs() || 3319 !delegate_->GetJavaScriptDialogManager(); 3320 3321 if (!suppress_this_message) { 3322 std::string accept_lang = GetContentClient()->browser()-> 3323 GetAcceptLangs(GetBrowserContext()); 3324 dialog_manager_ = delegate_->GetJavaScriptDialogManager(); 3325 dialog_manager_->RunJavaScriptDialog( 3326 this, 3327 frame_url.GetOrigin(), 3328 accept_lang, 3329 javascript_message_type, 3330 message, 3331 default_prompt, 3332 base::Bind(&WebContentsImpl::OnDialogClosed, 3333 base::Unretained(this), 3334 rvh, 3335 reply_msg), 3336 &suppress_this_message); 3337 } 3338 3339 if (suppress_this_message) { 3340 // If we are suppressing messages, just reply as if the user immediately 3341 // pressed "Cancel". 3342 OnDialogClosed(rvh, reply_msg, false, string16()); 3343 } 3344 3345 *did_suppress_message = suppress_this_message; 3346} 3347 3348void WebContentsImpl::RunBeforeUnloadConfirm(RenderViewHost* rvh, 3349 const string16& message, 3350 bool is_reload, 3351 IPC::Message* reply_msg) { 3352 RenderViewHostImpl* rvhi = static_cast<RenderViewHostImpl*>(rvh); 3353 if (delegate_) 3354 delegate_->WillRunBeforeUnloadConfirm(); 3355 3356 bool suppress_this_message = 3357 rvhi->is_swapped_out() || 3358 !delegate_ || 3359 delegate_->ShouldSuppressDialogs() || 3360 !delegate_->GetJavaScriptDialogManager(); 3361 if (suppress_this_message) { 3362 // The reply must be sent to the RVH that sent the request. 3363 rvhi->JavaScriptDialogClosed(reply_msg, true, string16()); 3364 return; 3365 } 3366 3367 is_showing_before_unload_dialog_ = true; 3368 dialog_manager_ = delegate_->GetJavaScriptDialogManager(); 3369 dialog_manager_->RunBeforeUnloadDialog( 3370 this, message, is_reload, 3371 base::Bind(&WebContentsImpl::OnDialogClosed, base::Unretained(this), rvh, 3372 reply_msg)); 3373} 3374 3375bool WebContentsImpl::AddMessageToConsole(int32 level, 3376 const string16& message, 3377 int32 line_no, 3378 const string16& source_id) { 3379 if (!delegate_) 3380 return false; 3381 return delegate_->AddMessageToConsole(this, level, message, line_no, 3382 source_id); 3383} 3384 3385WebPreferences WebContentsImpl::GetWebkitPrefs() { 3386 // We want to base the page config off of the real URL, rather than the 3387 // display URL. 3388 GURL url = controller_.GetActiveEntry() 3389 ? controller_.GetActiveEntry()->GetURL() : GURL::EmptyGURL(); 3390 return GetWebkitPrefs(GetRenderViewHost(), url); 3391} 3392 3393int WebContentsImpl::CreateSwappedOutRenderView( 3394 SiteInstance* instance) { 3395 return render_manager_.CreateRenderView(instance, MSG_ROUTING_NONE, true); 3396} 3397 3398void WebContentsImpl::OnUserGesture() { 3399 // Notify observers. 3400 FOR_EACH_OBSERVER(WebContentsObserver, observers_, DidGetUserGesture()); 3401 3402 ResourceDispatcherHostImpl* rdh = ResourceDispatcherHostImpl::Get(); 3403 if (rdh) // NULL in unittests. 3404 rdh->OnUserGesture(this); 3405} 3406 3407void WebContentsImpl::OnIgnoredUIEvent() { 3408 // Notify observers. 3409 FOR_EACH_OBSERVER(WebContentsObserver, observers_, DidGetIgnoredUIEvent()); 3410} 3411 3412void WebContentsImpl::RendererUnresponsive(RenderViewHost* rvh, 3413 bool is_during_unload) { 3414 // Don't show hung renderer dialog for a swapped out RVH. 3415 if (rvh != GetRenderViewHost()) 3416 return; 3417 3418 RenderViewHostImpl* rvhi = static_cast<RenderViewHostImpl*>(rvh); 3419 3420 // Ignore renderer unresponsive event if debugger is attached to the tab 3421 // since the event may be a result of the renderer sitting on a breakpoint. 3422 // See http://crbug.com/65458 3423 if (DevToolsAgentHost::IsDebuggerAttached(this)) 3424 return; 3425 3426 if (is_during_unload) { 3427 // Hang occurred while firing the beforeunload/unload handler. 3428 // Pretend the handler fired so tab closing continues as if it had. 3429 rvhi->set_sudden_termination_allowed(true); 3430 3431 if (!render_manager_.ShouldCloseTabOnUnresponsiveRenderer()) 3432 return; 3433 3434 // If the tab hangs in the beforeunload/unload handler there's really 3435 // nothing we can do to recover. Pretend the unload listeners have 3436 // all fired and close the tab. If the hang is in the beforeunload handler 3437 // then the user will not have the option of cancelling the close. 3438 Close(rvh); 3439 return; 3440 } 3441 3442 if (!GetRenderViewHostImpl() || !GetRenderViewHostImpl()->IsRenderViewLive()) 3443 return; 3444 3445 if (delegate_) 3446 delegate_->RendererUnresponsive(this); 3447} 3448 3449void WebContentsImpl::RendererResponsive(RenderViewHost* render_view_host) { 3450 if (delegate_) 3451 delegate_->RendererResponsive(this); 3452} 3453 3454void WebContentsImpl::LoadStateChanged( 3455 const GURL& url, 3456 const net::LoadStateWithParam& load_state, 3457 uint64 upload_position, 3458 uint64 upload_size) { 3459 load_state_ = load_state; 3460 upload_position_ = upload_position; 3461 upload_size_ = upload_size; 3462 load_state_host_ = net::IDNToUnicode(url.host(), 3463 GetContentClient()->browser()->GetAcceptLangs( 3464 GetBrowserContext())); 3465 if (load_state_.state == net::LOAD_STATE_READING_RESPONSE) 3466 SetNotWaitingForResponse(); 3467 if (IsLoading()) { 3468 NotifyNavigationStateChanged(INVALIDATE_TYPE_LOAD | INVALIDATE_TYPE_TAB); 3469 } 3470} 3471 3472void WebContentsImpl::WorkerCrashed() { 3473 if (delegate_) 3474 delegate_->WorkerCrashed(this); 3475} 3476 3477void WebContentsImpl::BeforeUnloadFiredFromRenderManager( 3478 bool proceed, const base::TimeTicks& proceed_time, 3479 bool* proceed_to_fire_unload) { 3480 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 3481 BeforeUnloadFired(proceed_time)); 3482 if (delegate_) 3483 delegate_->BeforeUnloadFired(this, proceed, proceed_to_fire_unload); 3484 // Note: |this| might be deleted at this point. 3485} 3486 3487void WebContentsImpl::RenderViewGoneFromRenderManager( 3488 RenderViewHost* render_view_host) { 3489 DCHECK(crashed_status_ != base::TERMINATION_STATUS_STILL_RUNNING); 3490 RenderViewTerminated(render_view_host, crashed_status_, crashed_error_code_); 3491} 3492 3493void WebContentsImpl::UpdateRenderViewSizeForRenderManager() { 3494 // TODO(brettw) this is a hack. See WebContentsView::SizeContents. 3495 gfx::Size size = view_->GetContainerSize(); 3496 // 0x0 isn't a valid window size (minimal window size is 1x1) but it may be 3497 // here during container initialization and normal window size will be set 3498 // later. In case of tab duplication this resizing to 0x0 prevents setting 3499 // normal size later so just ignore it. 3500 if (!size.IsEmpty()) 3501 view_->SizeContents(size); 3502} 3503 3504void WebContentsImpl::NotifySwappedFromRenderManager(RenderViewHost* rvh) { 3505 NotifySwapped(rvh); 3506 3507 // Make sure the visible RVH reflects the new delegate's preferences. 3508 if (delegate_) 3509 view_->SetOverscrollControllerEnabled(delegate_->CanOverscrollContent()); 3510 3511 view_->RenderViewSwappedIn(render_manager_.current_host()); 3512 3513 FrameTreeNode* root = NULL; 3514 RenderViewHostImpl* new_rvh = static_cast<RenderViewHostImpl*>( 3515 render_manager_.current_host()); 3516 3517 // We are doing a cross-site navigation and swapping processes. Since frame 3518 // ids are unique to a process, we need to recreate the frame tree with the 3519 // proper main frame id. 3520 // Note that it is possible for this method to be called before the new RVH 3521 // has committed a navigation (if RenderViewHostManager short-circuits the 3522 // CommitPending call because the current RVH is dead). In that case, we 3523 // haven't heard a valid frame id to use to initialize the root node, so clear 3524 // out the root node and the first subsequent navigation message will set it 3525 // correctly. 3526 if (new_rvh->main_frame_id() != -1) 3527 root = new FrameTreeNode(new_rvh->main_frame_id(), std::string()); 3528 3529 frame_tree_root_.reset(root); 3530} 3531 3532int WebContentsImpl::CreateOpenerRenderViewsForRenderManager( 3533 SiteInstance* instance) { 3534 if (!opener_) 3535 return MSG_ROUTING_NONE; 3536 3537 // Recursively create RenderViews for anything else in the opener chain. 3538 return opener_->CreateOpenerRenderViews(instance); 3539} 3540 3541int WebContentsImpl::CreateOpenerRenderViews(SiteInstance* instance) { 3542 int opener_route_id = MSG_ROUTING_NONE; 3543 3544 // If this tab has an opener, ensure it has a RenderView in the given 3545 // SiteInstance as well. 3546 if (opener_) 3547 opener_route_id = opener_->CreateOpenerRenderViews(instance); 3548 3549 // If any of the renderers (current, pending, or swapped out) for this 3550 // WebContents has the same SiteInstance, use it. 3551 if (render_manager_.current_host()->GetSiteInstance() == instance) 3552 return render_manager_.current_host()->GetRoutingID(); 3553 3554 if (render_manager_.pending_render_view_host() && 3555 render_manager_.pending_render_view_host()->GetSiteInstance() == instance) 3556 return render_manager_.pending_render_view_host()->GetRoutingID(); 3557 3558 RenderViewHostImpl* rvh = render_manager_.GetSwappedOutRenderViewHost( 3559 instance); 3560 if (rvh) 3561 return rvh->GetRoutingID(); 3562 3563 // Create a swapped out RenderView in the given SiteInstance if none exists, 3564 // setting its opener to the given route_id. Return the new view's route_id. 3565 return render_manager_.CreateRenderView(instance, opener_route_id, true); 3566} 3567 3568NavigationControllerImpl& WebContentsImpl::GetControllerForRenderManager() { 3569 return GetController(); 3570} 3571 3572WebUIImpl* WebContentsImpl::CreateWebUIForRenderManager(const GURL& url) { 3573 return static_cast<WebUIImpl*>(CreateWebUI(url)); 3574} 3575 3576NavigationEntry* 3577 WebContentsImpl::GetLastCommittedNavigationEntryForRenderManager() { 3578 return controller_.GetLastCommittedEntry(); 3579} 3580 3581bool WebContentsImpl::CreateRenderViewForRenderManager( 3582 RenderViewHost* render_view_host, int opener_route_id) { 3583 TRACE_EVENT0("browser", "WebContentsImpl::CreateRenderViewForRenderManager"); 3584 // Can be NULL during tests. 3585 RenderWidgetHostView* rwh_view = view_->CreateViewForWidget(render_view_host); 3586 3587 // Now that the RenderView has been created, we need to tell it its size. 3588 if (rwh_view) 3589 rwh_view->SetSize(view_->GetContainerSize()); 3590 3591 // Make sure we use the correct starting page_id in the new RenderView. 3592 UpdateMaxPageIDIfNecessary(render_view_host); 3593 int32 max_page_id = 3594 GetMaxPageIDForSiteInstance(render_view_host->GetSiteInstance()); 3595 3596 if (!static_cast<RenderViewHostImpl*>( 3597 render_view_host)->CreateRenderView(string16(), 3598 opener_route_id, 3599 max_page_id)) { 3600 return false; 3601 } 3602 3603#if defined(OS_LINUX) || defined(OS_OPENBSD) 3604 // Force a ViewMsg_Resize to be sent, needed to make plugins show up on 3605 // linux. See crbug.com/83941. 3606 if (rwh_view) { 3607 if (RenderWidgetHost* render_widget_host = rwh_view->GetRenderWidgetHost()) 3608 render_widget_host->WasResized(); 3609 } 3610#endif 3611 3612 return true; 3613} 3614 3615void WebContentsImpl::OnDialogClosed(RenderViewHost* rvh, 3616 IPC::Message* reply_msg, 3617 bool success, 3618 const string16& user_input) { 3619 if (is_showing_before_unload_dialog_ && !success) { 3620 // If a beforeunload dialog is canceled, we need to stop the throbber from 3621 // spinning, since we forced it to start spinning in Navigate. 3622 DidStopLoading(rvh); 3623 controller_.DiscardNonCommittedEntries(); 3624 3625 FOR_EACH_OBSERVER(WebContentsObserver, observers_, 3626 BeforeUnloadDialogCancelled()); 3627 } 3628 is_showing_before_unload_dialog_ = false; 3629 static_cast<RenderViewHostImpl*>( 3630 rvh)->JavaScriptDialogClosed(reply_msg, success, user_input); 3631} 3632 3633void WebContentsImpl::SetEncoding(const std::string& encoding) { 3634 encoding_ = GetContentClient()->browser()-> 3635 GetCanonicalEncodingNameByAliasName(encoding); 3636} 3637 3638void WebContentsImpl::SaveURL(const GURL& url, 3639 const Referrer& referrer, 3640 bool is_main_frame) { 3641 DownloadManager* dlm = 3642 BrowserContext::GetDownloadManager(GetBrowserContext()); 3643 if (!dlm) 3644 return; 3645 int64 post_id = -1; 3646 if (is_main_frame) { 3647 const NavigationEntry* entry = controller_.GetActiveEntry(); 3648 if (entry) 3649 post_id = entry->GetPostID(); 3650 } 3651 scoped_ptr<DownloadUrlParameters> params( 3652 DownloadUrlParameters::FromWebContents(this, url)); 3653 params->set_referrer(referrer); 3654 params->set_post_id(post_id); 3655 params->set_prefer_cache(true); 3656 if (post_id >= 0) 3657 params->set_method("POST"); 3658 params->set_prompt(true); 3659 dlm->DownloadUrl(params.Pass()); 3660} 3661 3662void WebContentsImpl::CreateViewAndSetSizeForRVH(RenderViewHost* rvh) { 3663 RenderWidgetHostView* rwh_view = view_->CreateViewForWidget(rvh); 3664 // Can be NULL during tests. 3665 if (rwh_view) 3666 rwh_view->SetSize(GetView()->GetContainerSize()); 3667} 3668 3669RenderViewHostImpl* WebContentsImpl::GetRenderViewHostImpl() { 3670 return static_cast<RenderViewHostImpl*>(GetRenderViewHost()); 3671} 3672 3673BrowserPluginGuest* WebContentsImpl::GetBrowserPluginGuest() const { 3674 return browser_plugin_guest_.get(); 3675} 3676 3677void WebContentsImpl::SetBrowserPluginGuest(BrowserPluginGuest* guest) { 3678 CHECK(!browser_plugin_guest_); 3679 browser_plugin_guest_.reset(guest); 3680} 3681 3682BrowserPluginEmbedder* WebContentsImpl::GetBrowserPluginEmbedder() const { 3683 return browser_plugin_embedder_.get(); 3684} 3685 3686BrowserPluginGuestManager* 3687 WebContentsImpl::GetBrowserPluginGuestManager() const { 3688 return static_cast<BrowserPluginGuestManager*>( 3689 GetBrowserContext()->GetUserData( 3690 browser_plugin::kBrowserPluginGuestManagerKeyName)); 3691} 3692 3693} // namespace content 3694