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| 1 // Copyright (c) 2009 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 "chrome/browser/renderer_host/render_view_host_manager.h" | |
| 6 | |
| 7 #include "base/command_line.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "chrome/browser/dom_ui/dom_ui.h" | |
| 10 #include "chrome/browser/dom_ui/dom_ui_factory.h" | |
| 11 #include "chrome/browser/renderer_host/render_view_host.h" | |
| 12 #include "chrome/browser/renderer_host/render_view_host_delegate.h" | |
| 13 #include "chrome/browser/renderer_host/render_view_host_factory.h" | |
| 14 #include "chrome/browser/renderer_host/render_widget_host_view.h" | |
| 15 #include "chrome/browser/renderer_host/site_instance.h" | |
| 16 #include "chrome/browser/tab_contents/navigation_controller.h" | |
| 17 #include "chrome/browser/tab_contents/navigation_entry.h" | |
| 18 #include "chrome/common/chrome_switches.h" | |
| 19 #include "chrome/common/notification_service.h" | |
| 20 #include "chrome/common/notification_type.h" | |
| 21 #include "chrome/common/render_messages.h" | |
| 22 #include "chrome/common/url_constants.h" | |
| 23 | |
| 24 namespace base { | |
| 25 class WaitableEvent; | |
| 26 } | |
| 27 | |
| 28 RenderViewHostManager::RenderViewHostManager( | |
| 29 RenderViewHostDelegate* render_view_delegate, | |
| 30 Delegate* delegate) | |
| 31 : delegate_(delegate), | |
| 32 cross_navigation_pending_(false), | |
| 33 render_view_delegate_(render_view_delegate), | |
| 34 render_view_host_(NULL), | |
| 35 pending_render_view_host_(NULL), | |
| 36 pending_renderer_aborted_(false), | |
| 37 interstitial_page_(NULL) { | |
| 38 registrar_.Add(this, NotificationType::RENDER_VIEW_HOST_DELETED, | |
| 39 NotificationService::AllSources()); | |
| 40 } | |
| 41 | |
| 42 RenderViewHostManager::~RenderViewHostManager() { | |
| 43 if (pending_render_view_host_) | |
| 44 CancelPending(); | |
| 45 | |
| 46 // We should always have a main RenderViewHost. | |
| 47 RenderViewHost* render_view_host = render_view_host_; | |
| 48 render_view_host_ = NULL; | |
| 49 render_view_host->Shutdown(); | |
| 50 } | |
| 51 | |
| 52 void RenderViewHostManager::Init(Profile* profile, | |
| 53 SiteInstance* site_instance, | |
| 54 int routing_id, | |
| 55 base::WaitableEvent* modal_dialog_event) { | |
| 56 // Create a RenderViewHost, once we have an instance. It is important to | |
| 57 // immediately give this SiteInstance to a RenderViewHost so that it is | |
| 58 // ref counted. | |
| 59 if (!site_instance) | |
| 60 site_instance = SiteInstance::CreateSiteInstance(profile); | |
| 61 render_view_host_ = RenderViewHostFactory::Create( | |
| 62 site_instance, render_view_delegate_, routing_id, modal_dialog_event); | |
| 63 NotificationService::current()->Notify( | |
| 64 NotificationType::RENDER_VIEW_HOST_CREATED_FOR_TAB, | |
| 65 Source<RenderViewHostManager>(this), | |
| 66 Details<RenderViewHost>(render_view_host_)); | |
| 67 } | |
| 68 | |
| 69 RenderViewHost* RenderViewHostManager::Navigate(const NavigationEntry& entry) { | |
| 70 // Create a pending RenderViewHost. It will give us the one we should use | |
| 71 RenderViewHost* dest_render_view_host = UpdateRendererStateForNavigate(entry); | |
| 72 if (!dest_render_view_host) | |
| 73 return NULL; // We weren't able to create a pending render view host. | |
| 74 | |
| 75 // If the current render_view_host_ isn't live, we should create it so | |
| 76 // that we don't show a sad tab while the dest_render_view_host fetches | |
| 77 // its first page. (Bug 1145340) | |
| 78 if (dest_render_view_host != render_view_host_ && | |
| 79 !render_view_host_->IsRenderViewLive()) { | |
| 80 delegate_->CreateRenderViewForRenderManager(render_view_host_); | |
| 81 } | |
| 82 | |
| 83 // If the renderer crashed, then try to create a new one to satisfy this | |
| 84 // navigation request. | |
| 85 if (!dest_render_view_host->IsRenderViewLive()) { | |
| 86 if (!delegate_->CreateRenderViewForRenderManager(dest_render_view_host)) | |
| 87 return NULL; | |
| 88 | |
| 89 // Now that we've created a new renderer, be sure to hide it if it isn't | |
| 90 // our primary one. Otherwise, we might crash if we try to call Show() | |
| 91 // on it later. | |
| 92 if (dest_render_view_host != render_view_host_ && | |
| 93 dest_render_view_host->view()) { | |
| 94 dest_render_view_host->view()->Hide(); | |
| 95 } else { | |
| 96 // This is our primary renderer, notify here as we won't be calling | |
| 97 // CommitPending (which does the notify). | |
| 98 RenderViewHostSwitchedDetails details; | |
| 99 details.new_host = render_view_host_; | |
| 100 details.old_host = NULL; | |
| 101 NotificationService::current()->Notify( | |
| 102 NotificationType::RENDER_VIEW_HOST_CHANGED, | |
| 103 Source<NavigationController>( | |
| 104 &delegate_->GetControllerForRenderManager()), | |
| 105 Details<RenderViewHostSwitchedDetails>(&details)); | |
| 106 } | |
| 107 } | |
| 108 | |
| 109 return dest_render_view_host; | |
| 110 } | |
| 111 | |
| 112 void RenderViewHostManager::Stop() { | |
| 113 render_view_host_->Stop(); | |
| 114 | |
| 115 // If we are cross-navigating, we should stop the pending renderers. This | |
| 116 // will lead to a DidFailProvisionalLoad, which will properly destroy them. | |
| 117 if (cross_navigation_pending_) | |
| 118 pending_render_view_host_->Stop(); | |
| 119 } | |
| 120 | |
| 121 void RenderViewHostManager::SetIsLoading(bool is_loading) { | |
| 122 render_view_host_->SetIsLoading(is_loading); | |
| 123 if (pending_render_view_host_) | |
| 124 pending_render_view_host_->SetIsLoading(is_loading); | |
| 125 } | |
| 126 | |
| 127 bool RenderViewHostManager::ShouldCloseTabOnUnresponsiveRenderer() { | |
| 128 if (!cross_navigation_pending_) | |
| 129 return true; | |
| 130 | |
| 131 // If the tab becomes unresponsive during unload while doing a | |
| 132 // cross-site navigation, proceed with the navigation. (This assumes that | |
| 133 // the pending RenderViewHost is still responsive.) | |
| 134 int pending_request_id = pending_render_view_host_->GetPendingRequestId(); | |
| 135 if (pending_request_id == -1) { | |
| 136 // Haven't gotten around to starting the request, because we're still | |
| 137 // waiting for the beforeunload handler to finish. We'll pretend that it | |
| 138 // did finish, to let the navigation proceed. Note that there's a danger | |
| 139 // that the beforeunload handler will later finish and possibly return | |
| 140 // false (meaning the navigation should not proceed), but we'll ignore it | |
| 141 // in this case because it took too long. | |
| 142 if (pending_render_view_host_->are_navigations_suspended()) | |
| 143 pending_render_view_host_->SetNavigationsSuspended(false); | |
| 144 } else { | |
| 145 // The request has been started and paused, while we're waiting for the | |
| 146 // unload handler to finish. We'll pretend that it did, by notifying the | |
| 147 // IO thread to let the response continue. The pending renderer will then | |
| 148 // be swapped in as part of the usual DidNavigate logic. (If the unload | |
| 149 // handler later finishes, this call will be ignored because the state in | |
| 150 // CrossSiteResourceHandler will already be cleaned up.) | |
| 151 current_host()->process()->CrossSiteClosePageACK( | |
| 152 pending_render_view_host_->process()->pid(), pending_request_id); | |
| 153 } | |
| 154 return false; | |
| 155 } | |
| 156 | |
| 157 void RenderViewHostManager::DidNavigateMainFrame( | |
| 158 RenderViewHost* render_view_host) { | |
| 159 if (!cross_navigation_pending_) { | |
| 160 DCHECK(!pending_render_view_host_); | |
| 161 | |
| 162 // We should only hear this from our current renderer. | |
| 163 DCHECK(render_view_host == render_view_host_); | |
| 164 | |
| 165 // Even when there is no pending RVH, there may be a pending DOM UI. | |
| 166 if (pending_dom_ui_.get()) | |
| 167 CommitPending(); | |
| 168 return; | |
| 169 } | |
| 170 | |
| 171 if (render_view_host == pending_render_view_host_) { | |
| 172 // The pending cross-site navigation completed, so show the renderer. | |
| 173 CommitPending(); | |
| 174 cross_navigation_pending_ = false; | |
| 175 } else if (render_view_host == render_view_host_) { | |
| 176 // A navigation in the original page has taken place. Cancel the pending | |
| 177 // one. | |
| 178 CancelPending(); | |
| 179 cross_navigation_pending_ = false; | |
| 180 } else { | |
| 181 // No one else should be sending us DidNavigate in this state. | |
| 182 DCHECK(false); | |
| 183 } | |
| 184 } | |
| 185 | |
| 186 void RenderViewHostManager::OnCrossSiteResponse(int new_render_process_host_id, | |
| 187 int new_request_id) { | |
| 188 // Should only see this while we have a pending renderer. | |
| 189 if (!cross_navigation_pending_) | |
| 190 return; | |
| 191 DCHECK(pending_render_view_host_); | |
| 192 | |
| 193 // Tell the old renderer to run its onunload handler. When it finishes, it | |
| 194 // will send a ClosePage_ACK to the ResourceDispatcherHost with the given | |
| 195 // IDs (of the pending RVH's request), allowing the pending RVH's response to | |
| 196 // resume. | |
| 197 render_view_host_->ClosePage(new_render_process_host_id, new_request_id); | |
| 198 | |
| 199 // ResourceDispatcherHost has told us to run the onunload handler, which | |
| 200 // means it is not a download or unsafe page, and we are going to perform the | |
| 201 // navigation. Thus, we no longer need to remember that the RenderViewHost | |
| 202 // is part of a pending cross-site request. | |
| 203 pending_render_view_host_->SetHasPendingCrossSiteRequest(false, | |
| 204 new_request_id); | |
| 205 } | |
| 206 | |
| 207 void RenderViewHostManager::RendererAbortedProvisionalLoad( | |
| 208 RenderViewHost* render_view_host) { | |
| 209 // We used to cancel the pending renderer here for cross-site downloads. | |
| 210 // However, it's not safe to do that because the download logic repeatedly | |
| 211 // looks for this TabContents based on a render view ID. Instead, we just | |
| 212 // leave the pending renderer around until the next navigation event | |
| 213 // (Navigate, DidNavigate, etc), which will clean it up properly. | |
| 214 // TODO(creis): All of this will go away when we move the cross-site logic | |
| 215 // to ResourceDispatcherHost, so that we intercept responses rather than | |
| 216 // navigation events. (That's necessary to support onunload anyway.) Once | |
| 217 // we've made that change, we won't create a pending renderer until we know | |
| 218 // the response is not a download. | |
| 219 | |
| 220 // There is one instance where we must be able to pre-emptively clean up a | |
| 221 // pending renderer: If a cross-site download is initiated from a chrome:// | |
| 222 // url, and the browser then wants to close. | |
| 223 if (pending_render_view_host_) { | |
| 224 pending_renderer_aborted_ = true; | |
| 225 } | |
| 226 } | |
| 227 | |
| 228 void RenderViewHostManager::ShouldClosePage(bool proceed) { | |
| 229 // Should only see this while we have a pending renderer. Otherwise, we | |
| 230 // should ignore. | |
| 231 if (pending_render_view_host_ && pending_renderer_aborted_) | |
| 232 CancelPending(); | |
| 233 | |
| 234 if (!pending_render_view_host_) { | |
| 235 bool proceed_to_fire_unload; | |
| 236 delegate_->BeforeUnloadFiredFromRenderManager(proceed, | |
| 237 &proceed_to_fire_unload); | |
| 238 | |
| 239 if (proceed_to_fire_unload) { | |
| 240 // This is not a cross-site navigation, the tab is being closed. | |
| 241 render_view_host_->FirePageUnload(); | |
| 242 } | |
| 243 return; | |
| 244 } | |
| 245 | |
| 246 if (proceed) { | |
| 247 // Ok to unload the current page, so proceed with the cross-site | |
| 248 // navigation. Note that if navigations are not currently suspended, it | |
| 249 // might be because the renderer was deemed unresponsive and this call was | |
| 250 // already made by ShouldCloseTabOnUnresponsiveRenderer. In that case, it | |
| 251 // is ok to do nothing here. | |
| 252 if (pending_render_view_host_->are_navigations_suspended()) | |
| 253 pending_render_view_host_->SetNavigationsSuspended(false); | |
| 254 } else { | |
| 255 // Current page says to cancel. | |
| 256 CancelPending(); | |
| 257 cross_navigation_pending_ = false; | |
| 258 } | |
| 259 } | |
| 260 | |
| 261 void RenderViewHostManager::OnJavaScriptMessageBoxClosed( | |
| 262 IPC::Message* reply_msg, | |
| 263 bool success, | |
| 264 const std::wstring& prompt) { | |
| 265 render_view_host_->JavaScriptMessageBoxClosed(reply_msg, success, prompt); | |
| 266 } | |
| 267 | |
| 268 void RenderViewHostManager::OnJavaScriptMessageBoxWindowDestroyed() { | |
| 269 render_view_host_->JavaScriptMessageBoxWindowDestroyed(); | |
| 270 } | |
| 271 | |
| 272 void RenderViewHostManager::Observe(NotificationType type, | |
| 273 const NotificationSource& source, | |
| 274 const NotificationDetails& details) { | |
| 275 // Debugging code to help isolate | |
| 276 // http://code.google.com/p/chromium/issues/detail?id=6316 . We should never | |
| 277 // reference a RVH that is about to be deleted. | |
| 278 RenderViewHost* deleted_rvh = Source<RenderViewHost>(source).ptr(); | |
| 279 CHECK(deleted_rvh); | |
| 280 CHECK(render_view_host_ != deleted_rvh); | |
| 281 CHECK(pending_render_view_host_ != deleted_rvh); | |
| 282 } | |
| 283 | |
| 284 bool RenderViewHostManager::ShouldTransitionCrossSite() { | |
| 285 // True if we are using process-per-site-instance (default) or | |
| 286 // process-per-site (kProcessPerSite). | |
| 287 return !CommandLine::ForCurrentProcess()->HasSwitch(switches::kProcessPerTab); | |
| 288 } | |
| 289 | |
| 290 bool RenderViewHostManager::ShouldSwapProcessesForNavigation( | |
| 291 const NavigationEntry* cur_entry, | |
| 292 const NavigationEntry* new_entry) const { | |
| 293 if (!cur_entry || !new_entry) | |
| 294 return false; | |
| 295 | |
| 296 // We can't switch a RenderView between view source and non-view source mode | |
| 297 // without screwing up the session history sometimes (when navigating between | |
| 298 // "view-source:http://foo.com/" and "http://foo.com/", WebKit doesn't treat | |
| 299 // it as a new navigation). So require a view switch. | |
| 300 if (cur_entry->IsViewSourceMode() != new_entry->IsViewSourceMode()) | |
| 301 return true; | |
| 302 | |
| 303 // For security, we should transition between processes when one is a DOM UI | |
| 304 // page and one isn't. | |
| 305 if (DOMUIFactory::HasDOMUIScheme(cur_entry->url()) != | |
| 306 DOMUIFactory::HasDOMUIScheme(new_entry->url())) | |
| 307 return true; | |
| 308 | |
| 309 // Also, we must switch if one is an extension and the other is not the exact | |
| 310 // same extension. | |
| 311 if (cur_entry->url().SchemeIs(chrome::kExtensionScheme) || | |
| 312 new_entry->url().SchemeIs(chrome::kExtensionScheme)) | |
| 313 if (cur_entry->url().GetOrigin() != new_entry->url().GetOrigin()) | |
| 314 return true; | |
| 315 | |
| 316 | |
| 317 return false; | |
| 318 } | |
| 319 | |
| 320 SiteInstance* RenderViewHostManager::GetSiteInstanceForEntry( | |
| 321 const NavigationEntry& entry, | |
| 322 SiteInstance* curr_instance) { | |
| 323 // NOTE: This is only called when ShouldTransitionCrossSite is true. | |
| 324 | |
| 325 // If the entry has an instance already, we should use it. | |
| 326 if (entry.site_instance()) | |
| 327 return entry.site_instance(); | |
| 328 | |
| 329 // (UGLY) HEURISTIC, process-per-site only: | |
| 330 // | |
| 331 // If this navigation is generated, then it probably corresponds to a search | |
| 332 // query. Given that search results typically lead to users navigating to | |
| 333 // other sites, we don't really want to use the search engine hostname to | |
| 334 // determine the site instance for this navigation. | |
| 335 // | |
| 336 // NOTE: This can be removed once we have a way to transition between | |
| 337 // RenderViews in response to a link click. | |
| 338 // | |
| 339 if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kProcessPerSite) && | |
| 340 entry.transition_type() == PageTransition::GENERATED) | |
| 341 return curr_instance; | |
| 342 | |
| 343 const GURL& dest_url = entry.url(); | |
| 344 | |
| 345 // If we haven't used our SiteInstance (and thus RVH) yet, then we can use it | |
| 346 // for this entry. We won't commit the SiteInstance to this site until the | |
| 347 // navigation commits (in DidNavigate), unless the navigation entry was | |
| 348 // restored. As session restore loads all the pages immediately we need to set | |
| 349 // the site first, otherwise after a restore none of the pages would share | |
| 350 // renderers. | |
| 351 if (!curr_instance->has_site()) { | |
| 352 // If we've already created a SiteInstance for our destination, we don't | |
| 353 // want to use this unused SiteInstance; use the existing one. (We don't | |
| 354 // do this check if the curr_instance has a site, because for now, we want | |
| 355 // to compare against the current URL and not the SiteInstance's site. In | |
| 356 // this case, there is no current URL, so comparing against the site is ok. | |
| 357 // See additional comments below.) | |
| 358 if (curr_instance->HasRelatedSiteInstance(dest_url)) { | |
| 359 return curr_instance->GetRelatedSiteInstance(dest_url); | |
| 360 } else { | |
| 361 if (entry.restored()) | |
| 362 curr_instance->SetSite(dest_url); | |
| 363 return curr_instance; | |
| 364 } | |
| 365 } | |
| 366 | |
| 367 // Otherwise, only create a new SiteInstance for cross-site navigation. | |
| 368 | |
| 369 // TODO(creis): Once we intercept links and script-based navigations, we | |
| 370 // will be able to enforce that all entries in a SiteInstance actually have | |
| 371 // the same site, and it will be safe to compare the URL against the | |
| 372 // SiteInstance's site, as follows: | |
| 373 // const GURL& current_url = curr_instance->site(); | |
| 374 // For now, though, we're in a hybrid model where you only switch | |
| 375 // SiteInstances if you type in a cross-site URL. This means we have to | |
| 376 // compare the entry's URL to the last committed entry's URL. | |
| 377 NavigationController& controller = delegate_->GetControllerForRenderManager(); | |
| 378 NavigationEntry* curr_entry = controller.GetLastCommittedEntry(); | |
| 379 if (interstitial_page_) { | |
| 380 // The interstitial is currently the last committed entry, but we want to | |
| 381 // compare against the last non-interstitial entry. | |
| 382 curr_entry = controller.GetEntryAtOffset(-1); | |
| 383 } | |
| 384 // If there is no last non-interstitial entry (and curr_instance already | |
| 385 // has a site), then we must have been opened from another tab. We want | |
| 386 // to compare against the URL of the page that opened us, but we can't | |
| 387 // get to it directly. The best we can do is check against the site of | |
| 388 // the SiteInstance. This will be correct when we intercept links and | |
| 389 // script-based navigations, but for now, it could place some pages in a | |
| 390 // new process unnecessarily. We should only hit this case if a page tries | |
| 391 // to open a new tab to an interstitial-inducing URL, and then navigates | |
| 392 // the page to a different same-site URL. (This seems very unlikely in | |
| 393 // practice.) | |
| 394 const GURL& current_url = (curr_entry) ? curr_entry->url() : | |
| 395 curr_instance->site(); | |
| 396 | |
| 397 if (SiteInstance::IsSameWebSite(current_url, dest_url)) { | |
| 398 return curr_instance; | |
| 399 } else if (ShouldSwapProcessesForNavigation(curr_entry, &entry)) { | |
| 400 // When we're swapping, we need to force the site instance AND browsing | |
| 401 // instance to be different ones. This addresses special cases where we use | |
| 402 // a single BrowsingInstance for all pages of a certain type (e.g., New Tab | |
| 403 // Pages), keeping them in the same process. When you navigate away from | |
| 404 // that page, we want to explicity ignore that BrowsingInstance and group | |
| 405 // this page into the appropriate SiteInstance for its URL. | |
| 406 return SiteInstance::CreateSiteInstanceForURL( | |
| 407 delegate_->GetControllerForRenderManager().profile(), dest_url); | |
| 408 } else { | |
| 409 // Start the new renderer in a new SiteInstance, but in the current | |
| 410 // BrowsingInstance. It is important to immediately give this new | |
| 411 // SiteInstance to a RenderViewHost (if it is different than our current | |
| 412 // SiteInstance), so that it is ref counted. This will happen in | |
| 413 // CreatePendingRenderView. | |
| 414 return curr_instance->GetRelatedSiteInstance(dest_url); | |
| 415 } | |
| 416 } | |
| 417 | |
| 418 bool RenderViewHostManager::CreatePendingRenderView(SiteInstance* instance) { | |
| 419 NavigationEntry* curr_entry = | |
| 420 delegate_->GetControllerForRenderManager().GetLastCommittedEntry(); | |
| 421 if (curr_entry) { | |
| 422 DCHECK(!curr_entry->content_state().empty()); | |
| 423 // TODO(creis): Should send a message to the RenderView to let it know | |
| 424 // we're about to switch away, so that it sends an UpdateState message. | |
| 425 } | |
| 426 | |
| 427 pending_render_view_host_ = RenderViewHostFactory::Create( | |
| 428 instance, render_view_delegate_, MSG_ROUTING_NONE, NULL); | |
| 429 NotificationService::current()->Notify( | |
| 430 NotificationType::RENDER_VIEW_HOST_CREATED_FOR_TAB, | |
| 431 Source<RenderViewHostManager>(this), | |
| 432 Details<RenderViewHost>(pending_render_view_host_)); | |
| 433 | |
| 434 bool success = delegate_->CreateRenderViewForRenderManager( | |
| 435 pending_render_view_host_); | |
| 436 if (success) { | |
| 437 // Don't show the view until we get a DidNavigate from it. | |
| 438 pending_render_view_host_->view()->Hide(); | |
| 439 } else { | |
| 440 CancelPending(); | |
| 441 } | |
| 442 return success; | |
| 443 } | |
| 444 | |
| 445 void RenderViewHostManager::CommitPending() { | |
| 446 // First commit the DOM UI, if any. | |
| 447 dom_ui_.swap(pending_dom_ui_); | |
| 448 pending_dom_ui_.reset(); | |
| 449 | |
| 450 // It's possible for the pending_render_view_host_ to be NULL when we aren't | |
| 451 // crossing process boundaries. If so, we just needed to handle the DOM UI | |
| 452 // committing above and we're done. | |
| 453 if (!pending_render_view_host_) | |
| 454 return; | |
| 455 | |
| 456 // Remember if the page was focused so we can focus the new renderer in | |
| 457 // that case. | |
| 458 bool focus_render_view = render_view_host_->view() && | |
| 459 render_view_host_->view()->HasFocus(); | |
| 460 | |
| 461 // Hide the current view and prepare to destroy it. | |
| 462 // TODO(creis): Get the old RenderViewHost to send us an UpdateState message | |
| 463 // before we destroy it. | |
| 464 if (render_view_host_->view()) | |
| 465 render_view_host_->view()->Hide(); | |
| 466 RenderViewHost* old_render_view_host = render_view_host_; | |
| 467 | |
| 468 // Swap in the pending view and make it active. | |
| 469 render_view_host_ = pending_render_view_host_; | |
| 470 pending_render_view_host_ = NULL; | |
| 471 | |
| 472 // If the view is gone, then this RenderViewHost died while it was hidden. | |
| 473 // We ignored the RenderViewGone call at the time, so we should send it now | |
| 474 // to make sure the sad tab shows up, etc. | |
| 475 if (render_view_host_->view()) | |
| 476 render_view_host_->view()->Show(); | |
| 477 else | |
| 478 delegate_->RenderViewGoneFromRenderManager(render_view_host_); | |
| 479 | |
| 480 // Make sure the size is up to date. (Fix for bug 1079768.) | |
| 481 delegate_->UpdateRenderViewSizeForRenderManager(); | |
| 482 | |
| 483 if (focus_render_view && render_view_host_->view()) | |
| 484 render_view_host_->view()->Focus(); | |
| 485 | |
| 486 RenderViewHostSwitchedDetails details; | |
| 487 details.new_host = render_view_host_; | |
| 488 details.old_host = old_render_view_host; | |
| 489 NotificationService::current()->Notify( | |
| 490 NotificationType::RENDER_VIEW_HOST_CHANGED, | |
| 491 Source<NavigationController>(&delegate_->GetControllerForRenderManager()), | |
| 492 Details<RenderViewHostSwitchedDetails>(&details)); | |
| 493 | |
| 494 old_render_view_host->Shutdown(); | |
| 495 | |
| 496 // Let the task manager know that we've swapped RenderViewHosts, since it | |
| 497 // might need to update its process groupings. | |
| 498 delegate_->NotifySwappedFromRenderManager(); | |
| 499 } | |
| 500 | |
| 501 RenderViewHost* RenderViewHostManager::UpdateRendererStateForNavigate( | |
| 502 const NavigationEntry& entry) { | |
| 503 // If we are cross-navigating, then we want to get back to normal and navigate | |
| 504 // as usual. | |
| 505 if (cross_navigation_pending_) { | |
| 506 if (pending_render_view_host_) | |
| 507 CancelPending(); | |
| 508 cross_navigation_pending_ = false; | |
| 509 } | |
| 510 | |
| 511 // This will possibly create (set to NULL) a DOM UI object for the pending | |
| 512 // page. We'll use this later to give the page special access. This must | |
| 513 // happen before the new renderer is created below so it will get bindings. | |
| 514 // It must also happen after the above conditional call to CancelPending(), | |
| 515 // otherwise CancelPending may clear the pending_dom_ui_ and the page will | |
| 516 // not have it's bindings set appropriately. | |
| 517 pending_dom_ui_.reset(delegate_->CreateDOMUIForRenderManager(entry.url())); | |
| 518 | |
| 519 // render_view_host_ will not be deleted before the end of this method, so we | |
| 520 // don't have to worry about this SiteInstance's ref count dropping to zero. | |
| 521 SiteInstance* curr_instance = render_view_host_->site_instance(); | |
| 522 | |
| 523 // Determine if we need a new SiteInstance for this entry. | |
| 524 // Again, new_instance won't be deleted before the end of this method, so it | |
| 525 // is safe to use a normal pointer here. | |
| 526 SiteInstance* new_instance = curr_instance; | |
| 527 if (ShouldTransitionCrossSite()) | |
| 528 new_instance = GetSiteInstanceForEntry(entry, curr_instance); | |
| 529 | |
| 530 if (new_instance != curr_instance || | |
| 531 ShouldSwapProcessesForNavigation( | |
| 532 delegate_->GetLastCommittedNavigationEntryForRenderManager(), | |
| 533 &entry)) { | |
| 534 // New SiteInstance. | |
| 535 DCHECK(!cross_navigation_pending_); | |
| 536 | |
| 537 // Create a pending RVH and navigate it. | |
| 538 bool success = CreatePendingRenderView(new_instance); | |
| 539 if (!success) | |
| 540 return NULL; | |
| 541 | |
| 542 // Check if our current RVH is live before we set up a transition. | |
| 543 if (!render_view_host_->IsRenderViewLive()) { | |
| 544 if (!cross_navigation_pending_) { | |
| 545 // The current RVH is not live. There's no reason to sit around with a | |
| 546 // sad tab or a newly created RVH while we wait for the pending RVH to | |
| 547 // navigate. Just switch to the pending RVH now and go back to non | |
| 548 // cross-navigating (Note that we don't care about on{before}unload | |
| 549 // handlers if the current RVH isn't live.) | |
| 550 CommitPending(); | |
| 551 return render_view_host_; | |
| 552 } else { | |
| 553 NOTREACHED(); | |
| 554 return render_view_host_; | |
| 555 } | |
| 556 } | |
| 557 // Otherwise, it's safe to treat this as a pending cross-site transition. | |
| 558 | |
| 559 // Make sure the old render view stops, in case a load is in progress. | |
| 560 render_view_host_->Stop(); | |
| 561 | |
| 562 // Suspend the new render view (i.e., don't let it send the cross-site | |
| 563 // Navigate message) until we hear back from the old renderer's | |
| 564 // onbeforeunload handler. If the handler returns false, we'll have to | |
| 565 // cancel the request. | |
| 566 DCHECK(!pending_render_view_host_->are_navigations_suspended()); | |
| 567 pending_render_view_host_->SetNavigationsSuspended(true); | |
| 568 | |
| 569 // Tell the CrossSiteRequestManager that this RVH has a pending cross-site | |
| 570 // request, so that ResourceDispatcherHost will know to tell us to run the | |
| 571 // old page's onunload handler before it sends the response. | |
| 572 pending_render_view_host_->SetHasPendingCrossSiteRequest(true, -1); | |
| 573 | |
| 574 // We now have a pending RVH. | |
| 575 DCHECK(!cross_navigation_pending_); | |
| 576 cross_navigation_pending_ = true; | |
| 577 | |
| 578 // Tell the old render view to run its onbeforeunload handler, since it | |
| 579 // doesn't otherwise know that the cross-site request is happening. This | |
| 580 // will trigger a call to ShouldClosePage with the reply. | |
| 581 render_view_host_->FirePageBeforeUnload(); | |
| 582 | |
| 583 return pending_render_view_host_; | |
| 584 } else { | |
| 585 // The renderer can exit view source mode when any error or cancellation | |
| 586 // happen. We must overwrite to recover the mode. | |
| 587 if (entry.IsViewSourceMode()) { | |
| 588 render_view_host_->Send( | |
| 589 new ViewMsg_EnableViewSourceMode(render_view_host_->routing_id())); | |
| 590 } | |
| 591 } | |
| 592 | |
| 593 // Same SiteInstance can be used. Navigate render_view_host_ if we are not | |
| 594 // cross navigating. | |
| 595 DCHECK(!cross_navigation_pending_); | |
| 596 return render_view_host_; | |
| 597 } | |
| 598 | |
| 599 void RenderViewHostManager::CancelPending() { | |
| 600 RenderViewHost* pending_render_view_host = pending_render_view_host_; | |
| 601 pending_render_view_host_ = NULL; | |
| 602 pending_render_view_host->Shutdown(); | |
| 603 pending_renderer_aborted_ = false; | |
| 604 pending_dom_ui_.reset(); | |
| 605 } | |
| 606 | |
| 607 void RenderViewHostManager::CrossSiteNavigationCanceled() { | |
| 608 DCHECK(cross_navigation_pending_); | |
| 609 cross_navigation_pending_ = false; | |
| 610 if (pending_render_view_host_) | |
| 611 CancelPending(); | |
| 612 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 150069:
Move RenderViewHostManager back to tab_contents. Moving it to renderer_host... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/