| // Copyright 2019 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "components/performance_manager/performance_manager_tab_helper.h" |
| |
| #include <type_traits> |
| #include <utility> |
| #include <vector> |
| |
| #include "base/bind.h" |
| #include "base/containers/contains.h" |
| #include "components/performance_manager/graph/frame_node_impl.h" |
| #include "components/performance_manager/graph/page_node_impl.h" |
| #include "components/performance_manager/graph/process_node_impl.h" |
| #include "components/performance_manager/performance_manager_impl.h" |
| #include "components/performance_manager/performance_manager_registry_impl.h" |
| #include "components/performance_manager/render_process_user_data.h" |
| #include "content/public/browser/browser_context.h" |
| #include "content/public/browser/navigation_handle.h" |
| #include "content/public/browser/render_frame_host.h" |
| #include "content/public/browser/site_instance.h" |
| #include "content/public/browser/web_contents.h" |
| #include "mojo/public/cpp/bindings/pending_receiver.h" |
| #include "third_party/blink/public/common/tokens/tokens.h" |
| |
| namespace performance_manager { |
| |
| namespace { |
| |
| // Returns true if the opener relationship exists, false otherwise. |
| bool ConnectWindowOpenRelationshipIfExists(PerformanceManagerTabHelper* helper, |
| content::WebContents* web_contents) { |
| // Prefer to use GetOpener() if available, as it is more specific and points |
| // directly to the frame that actually called window.open. |
| auto* opener_rfh = web_contents->GetOpener(); |
| if (!opener_rfh) { |
| // If the child page is opened with "noopener" then the parent document |
| // maintains the ability to close the child, but the child can't reach back |
| // and see it's parent. In this case there will be no "Opener", but there |
| // will be an "OriginalOpener". |
| opener_rfh = web_contents->GetOriginalOpener(); |
| } |
| |
| if (!opener_rfh) |
| return false; |
| |
| // You can't simultaneously be a portal (an embedded child element of a |
| // document loaded via the <portal> tag) and a popup (a child document |
| // loaded in a new window). |
| DCHECK(!web_contents->IsPortal()); |
| |
| // Connect this new page to its opener. |
| auto* opener_wc = content::WebContents::FromRenderFrameHost(opener_rfh); |
| auto* opener_helper = PerformanceManagerTabHelper::FromWebContents(opener_wc); |
| DCHECK(opener_helper); // We should already have seen the opener WC. |
| |
| // On CrOS the opener can be the ChromeKeyboardWebContents, whose RFHs never |
| // make it to a "created" state, so the PM never learns about them. |
| // https://crbug.com/1090374 |
| auto* opener_frame_node = opener_helper->GetFrameNode(opener_rfh); |
| if (!opener_frame_node) |
| return false; |
| |
| PerformanceManagerImpl::CallOnGraphImpl( |
| FROM_HERE, base::BindOnce(&PageNodeImpl::SetOpenerFrameNodeAndOpenedType, |
| base::Unretained(helper->page_node()), |
| base::Unretained(opener_frame_node), |
| PageNode::OpenedType::kPopup)); |
| return true; |
| } |
| |
| } // namespace |
| |
| PerformanceManagerTabHelper::PerformanceManagerTabHelper( |
| content::WebContents* web_contents) |
| : content::WebContentsObserver(web_contents) { |
| // Create the page node. |
| page_node_ = PerformanceManagerImpl::CreatePageNode( |
| WebContentsProxy(weak_factory_.GetWeakPtr()), |
| web_contents->GetBrowserContext()->UniqueId(), |
| web_contents->GetVisibleURL(), |
| web_contents->GetVisibility() == content::Visibility::VISIBLE, |
| web_contents->IsCurrentlyAudible(), web_contents->GetLastActiveTime()); |
| |
| // We have an early WebContents creation hook so should see it when there is |
| // only a single frame, and it is not yet created. We sanity check that here. |
| #if DCHECK_IS_ON() |
| DCHECK(!web_contents->GetMainFrame()->IsRenderFrameCreated()); |
| std::vector<content::RenderFrameHost*> frames = web_contents->GetAllFrames(); |
| DCHECK_EQ(1u, frames.size()); |
| DCHECK_EQ(web_contents->GetMainFrame(), frames[0]); |
| #endif |
| |
| ConnectWindowOpenRelationshipIfExists(this, web_contents); |
| } |
| |
| PerformanceManagerTabHelper::~PerformanceManagerTabHelper() { |
| DCHECK(!page_node_); |
| DCHECK(frames_.empty()); |
| } |
| |
| void PerformanceManagerTabHelper::TearDown() { |
| // Ship our page and frame nodes to the PerformanceManagerImpl for |
| // incineration. |
| std::vector<std::unique_ptr<NodeBase>> nodes; |
| nodes.push_back(std::move(page_node_)); |
| for (auto& kv : frames_) { |
| std::unique_ptr<FrameNodeImpl> frame_node = std::move(kv.second); |
| |
| // Notify observers. |
| for (Observer& observer : observers_) |
| observer.OnBeforeFrameNodeRemoved(this, frame_node.get()); |
| |
| // Ensure the node will be deleted on the graph sequence. |
| nodes.push_back(std::move(frame_node)); |
| } |
| |
| frames_.clear(); |
| |
| // Delete the page and its entire frame tree from the graph. |
| PerformanceManagerImpl::BatchDeleteNodes(std::move(nodes)); |
| |
| if (destruction_observer_) { |
| destruction_observer_->OnPerformanceManagerTabHelperDestroying( |
| web_contents()); |
| } |
| |
| // Unsubscribe from the associated WebContents. |
| Observe(nullptr); |
| } |
| |
| void PerformanceManagerTabHelper::SetDestructionObserver( |
| DestructionObserver* destruction_observer) { |
| DCHECK(!destruction_observer || !destruction_observer_); |
| destruction_observer_ = destruction_observer; |
| } |
| |
| void PerformanceManagerTabHelper::RenderFrameCreated( |
| content::RenderFrameHost* render_frame_host) { |
| DCHECK_NE(nullptr, render_frame_host); |
| // This must not exist in the map yet. |
| DCHECK(!base::Contains(frames_, render_frame_host)); |
| |
| content::RenderFrameHost* parent = render_frame_host->GetParent(); |
| FrameNodeImpl* parent_frame_node = nullptr; |
| if (parent) { |
| DCHECK(base::Contains(frames_, parent)); |
| parent_frame_node = frames_[parent].get(); |
| } |
| |
| // Ideally, creation would not be required here, but it is possible in tests |
| // for the RenderProcessUserData to not have attached at this point. |
| PerformanceManagerRegistryImpl::GetInstance() |
| ->EnsureProcessNodeForRenderProcessHost(render_frame_host->GetProcess()); |
| |
| auto* process_node = RenderProcessUserData::GetForRenderProcessHost( |
| render_frame_host->GetProcess()) |
| ->process_node(); |
| |
| auto* site_instance = render_frame_host->GetSiteInstance(); |
| |
| // Create the frame node, and provide a callback that will run in the graph to |
| // initialize it. |
| std::unique_ptr<FrameNodeImpl> frame = |
| PerformanceManagerImpl::CreateFrameNode( |
| process_node, page_node_.get(), parent_frame_node, |
| render_frame_host->GetFrameTreeNodeId(), |
| render_frame_host->GetRoutingID(), |
| blink::LocalFrameToken(render_frame_host->GetFrameToken()), |
| site_instance->GetBrowsingInstanceId(), site_instance->GetId(), |
| base::BindOnce( |
| [](const GURL& url, bool is_current, FrameNodeImpl* frame_node) { |
| if (!url.is_empty()) |
| frame_node->OnNavigationCommitted(url, |
| /* same_document */ false); |
| frame_node->SetIsCurrent(is_current); |
| }, |
| render_frame_host->GetLastCommittedURL(), |
| render_frame_host->IsCurrent())); |
| |
| frames_[render_frame_host] = std::move(frame); |
| } |
| |
| void PerformanceManagerTabHelper::RenderFrameDeleted( |
| content::RenderFrameHost* render_frame_host) { |
| auto it = frames_.find(render_frame_host); |
| if (it == frames_.end()) { |
| // https://crbug.com/948088. |
| // At the present time (May 2019), it's possible for speculative render |
| // frame hosts to exist at the time this TabHelper is attached to a |
| // WebContents. These speculative render frame hosts are not exposed in |
| // enumeration, and so may be first observed at deletion time. |
| return; |
| } |
| DCHECK(it != frames_.end()); |
| |
| std::unique_ptr<FrameNodeImpl> frame_node = std::move(it->second); |
| |
| // Notify observers. |
| for (Observer& observer : observers_) |
| observer.OnBeforeFrameNodeRemoved(this, frame_node.get()); |
| |
| // Then delete the node. |
| PerformanceManagerImpl::DeleteNode(std::move(frame_node)); |
| frames_.erase(it); |
| } |
| |
| void PerformanceManagerTabHelper::RenderFrameHostChanged( |
| content::RenderFrameHost* old_host, |
| content::RenderFrameHost* new_host) { |
| // |old_host| is null when a new frame tree position is being created and a |
| // new frame is its first occupant. |
| FrameNodeImpl* old_frame = nullptr; |
| if (old_host) { |
| auto it = frames_.find(old_host); |
| if (it != frames_.end()) { |
| // This can be received for a frame that hasn't yet been created. We can |
| // safely ignore this. It would be nice to track those frames too, but |
| // since they're not yet "created" we'd have no guarantee of seeing a |
| // corresponding delete and the frames can be leaked. |
| old_frame = it->second.get(); |
| } |
| } |
| |
| // It's entirely possible that this is the first time we're seeing this frame. |
| // We'll eventually see a corresponding RenderFrameCreated if the frame ends |
| // up actually being needed, so we can ignore it until that time. Artificially |
| // creating the frame causes problems because we aren't guaranteed to see a |
| // subsequent RenderFrameCreated call, meaning we won't see a |
| // RenderFrameDeleted, and the frame node will be leaked until process tear |
| // down. |
| DCHECK(new_host); |
| FrameNodeImpl* new_frame = nullptr; |
| auto it = frames_.find(new_host); |
| if (it != frames_.end()) { |
| new_frame = it->second.get(); |
| } else if (new_host->IsRenderFrameCreated()) { |
| // https://crbug.com/948088. |
| // In the case of speculative frames already existent and created at attach |
| // time, fake the creation event at this point. |
| RenderFrameCreated(new_host); |
| |
| new_frame = frames_[new_host].get(); |
| DCHECK_NE(nullptr, new_frame); |
| } |
| // If neither frame could be looked up there's nothing to do. |
| if (!old_frame && !new_frame) |
| return; |
| |
| // Perform the swap in the graph. |
| PerformanceManagerImpl::CallOnGraphImpl( |
| FROM_HERE, base::BindOnce( |
| [](FrameNodeImpl* old_frame, FrameNodeImpl* new_frame) { |
| if (old_frame) { |
| DCHECK(old_frame->is_current()); |
| old_frame->SetIsCurrent(false); |
| } |
| if (new_frame) { |
| if (!new_frame->is_current()) { |
| new_frame->SetIsCurrent(true); |
| } else { |
| // The very first frame to be created is already |
| // current by default. In which case the swap must be |
| // from no frame to a frame. |
| DCHECK(!old_frame); |
| } |
| } |
| }, |
| old_frame, new_frame)); |
| } |
| |
| void PerformanceManagerTabHelper::OnVisibilityChanged( |
| content::Visibility visibility) { |
| const bool is_visible = visibility == content::Visibility::VISIBLE; |
| PerformanceManagerImpl::CallOnGraphImpl( |
| FROM_HERE, |
| base::BindOnce(&PageNodeImpl::SetIsVisible, |
| base::Unretained(page_node_.get()), is_visible)); |
| } |
| |
| void PerformanceManagerTabHelper::OnAudioStateChanged(bool audible) { |
| PerformanceManagerImpl::CallOnGraphImpl( |
| FROM_HERE, base::BindOnce(&PageNodeImpl::SetIsAudible, |
| base::Unretained(page_node_.get()), audible)); |
| } |
| |
| void PerformanceManagerTabHelper::OnFrameAudioStateChanged( |
| content::RenderFrameHost* render_frame_host, |
| bool is_audible) { |
| auto frame_it = frames_.find(render_frame_host); |
| // Ideally this would be a DCHECK, but RenderFrameHost sends out one last |
| // notification in its destructor; at this point we've already torn down the |
| // FrameNode in response to the RenderFrameDeleted which comes *before* the |
| // destructor is run. |
| if (frame_it == frames_.end()) { |
| // We should only ever see this for a frame transitioning to *not* audible. |
| DCHECK(!is_audible); |
| return; |
| } |
| auto* frame_node = frame_it->second.get(); |
| PerformanceManagerImpl::CallOnGraphImpl( |
| FROM_HERE, base::BindOnce(&FrameNodeImpl::SetIsAudible, |
| base::Unretained(frame_node), is_audible)); |
| } |
| |
| void PerformanceManagerTabHelper::DidFinishNavigation( |
| content::NavigationHandle* navigation_handle) { |
| if (!navigation_handle->HasCommitted()) |
| return; |
| |
| // Grab the current time up front, as this is as close as we'll get to the |
| // original commit time. |
| base::TimeTicks navigation_committed_time = base::TimeTicks::Now(); |
| |
| // Find the associated frame node. |
| content::RenderFrameHost* render_frame_host = |
| navigation_handle->GetRenderFrameHost(); |
| auto frame_it = frames_.find(render_frame_host); |
| // TODO(siggi): Ideally this would be a DCHECK, but it seems it's possible |
| // to get a DidFinishNavigation notification for a deleted frame with |
| // the network service. |
| if (frame_it == frames_.end()) |
| return; |
| auto* frame_node = frame_it->second.get(); |
| |
| // Notify the frame of the committed URL. |
| GURL url = navigation_handle->GetURL(); |
| PerformanceManagerImpl::CallOnGraphImpl( |
| FROM_HERE, base::BindOnce(&FrameNodeImpl::OnNavigationCommitted, |
| base::Unretained(frame_node), url, |
| navigation_handle->IsSameDocument())); |
| |
| if (!navigation_handle->IsInMainFrame()) |
| return; |
| |
| // Make sure the hierarchical structure is constructed before sending signal |
| // to the performance manager. |
| OnMainFrameNavigation(navigation_handle->GetNavigationId(), |
| navigation_handle->IsSameDocument()); |
| PerformanceManagerImpl::CallOnGraphImpl( |
| FROM_HERE, |
| base::BindOnce( |
| &PageNodeImpl::OnMainFrameNavigationCommitted, |
| base::Unretained(page_node_.get()), |
| navigation_handle->IsSameDocument(), navigation_committed_time, |
| navigation_handle->GetNavigationId(), url, |
| navigation_handle->GetWebContents()->GetContentsMimeType())); |
| } |
| |
| void PerformanceManagerTabHelper::TitleWasSet(content::NavigationEntry* entry) { |
| // TODO(siggi): This logic belongs in the policy layer rather than here. |
| if (!first_time_title_set_) { |
| first_time_title_set_ = true; |
| return; |
| } |
| PerformanceManagerImpl::CallOnGraphImpl( |
| FROM_HERE, base::BindOnce(&PageNodeImpl::OnTitleUpdated, |
| base::Unretained(page_node_.get()))); |
| } |
| |
| void PerformanceManagerTabHelper::InnerWebContentsAttached( |
| content::WebContents* inner_web_contents, |
| content::RenderFrameHost* render_frame_host, |
| bool /* is_full_page */) { |
| // Note that we sometimes learn of contents creation at this point (before |
| // other helpers get a chance to attach), so we need to ensure our helper |
| // exists. |
| CreateForWebContents(inner_web_contents); |
| auto* helper = FromWebContents(inner_web_contents); |
| DCHECK(helper); |
| auto* page = helper->page_node_.get(); |
| DCHECK(page); |
| auto* frame = GetFrameNode(render_frame_host); |
| |
| // Determine the opened type. |
| auto opened_type = PageNode::OpenedType::kInvalid; |
| if (inner_web_contents->IsPortal()) { |
| opened_type = PageNode::OpenedType::kPortal; |
| |
| // In the case of portals there can be a temporary RFH that is created that |
| // will never actually be committed to the frame tree (for which we'll never |
| // see RenderFrameCreated and RenderFrameDestroyed notifications). Find a |
| // parent that we do know about instead. Note that this is not *always* |
| // true, because portals are reusable. |
| if (!frame) |
| frame = GetFrameNode(render_frame_host->GetParent()); |
| } else { |
| opened_type = PageNode::OpenedType::kGuestView; |
| // For a guest view, the RFH should already have been seen. |
| |
| // Note that guest views can simultaneously have openers *and* be embedded. |
| // The embedded relationship has higher priority, but we'll fall back to |
| // using the window.open relationship if the embedded relationship is |
| // severed. |
| } |
| DCHECK_NE(PageNode::OpenedType::kInvalid, opened_type); |
| if (!frame) { |
| DCHECK(!render_frame_host->IsRenderFrameCreated()); |
| DCHECK(!inner_web_contents->IsPortal()); |
| // TODO(crbug.com/1133361): |
| // WebContentsImplBrowserTest.AttachNestedInnerWebContents calls |
| // WebContents::AttachInnerWebContents without creating RenderFrame. |
| // Removing this conditional once either the test is fixed or this function |
| // is adjusted to handle the case without the render frame. |
| return; |
| } |
| |
| PerformanceManagerImpl::CallOnGraphImpl( |
| FROM_HERE, base::BindOnce(&PageNodeImpl::SetOpenerFrameNodeAndOpenedType, |
| base::Unretained(page), base::Unretained(frame), |
| opened_type)); |
| } |
| |
| void PerformanceManagerTabHelper::InnerWebContentsDetached( |
| content::WebContents* inner_web_contents) { |
| auto* helper = FromWebContents(inner_web_contents); |
| DCHECK(helper); |
| |
| // Fall back to using the window.open opener if it exists. If not, simply |
| // clear the opener relationship entirely. |
| if (!ConnectWindowOpenRelationshipIfExists(helper, inner_web_contents)) { |
| PerformanceManagerImpl::CallOnGraphImpl( |
| FROM_HERE, |
| base::BindOnce(&PageNodeImpl::ClearOpenerFrameNodeAndOpenedType, |
| base::Unretained(helper->page_node()))); |
| } |
| } |
| |
| void PerformanceManagerTabHelper::WebContentsDestroyed() { |
| // Remember the contents, as TearDown clears observer. |
| auto* contents = web_contents(); |
| TearDown(); |
| // Immediately remove ourselves from the WCUD. After TearDown the tab helper |
| // is in an inconsistent state. This will prevent other |
| // WCO::WebContentsDestroyed handlers from trying to access the tab helper in |
| // this inconsistent state. |
| contents->RemoveUserData(UserDataKey()); |
| } |
| |
| void PerformanceManagerTabHelper::DidUpdateFaviconURL( |
| content::RenderFrameHost* render_frame_host, |
| const std::vector<blink::mojom::FaviconURLPtr>& candidates) { |
| // This favicon change might have been initiated by a different frame some |
| // time ago and the main frame might have changed. |
| if (!render_frame_host->IsCurrent()) |
| return; |
| |
| // TODO(siggi): This logic belongs in the policy layer rather than here. |
| if (!first_time_favicon_set_) { |
| first_time_favicon_set_ = true; |
| return; |
| } |
| PerformanceManagerImpl::CallOnGraphImpl( |
| FROM_HERE, base::BindOnce(&PageNodeImpl::OnFaviconUpdated, |
| base::Unretained(page_node_.get()))); |
| } |
| |
| void PerformanceManagerTabHelper::BindDocumentCoordinationUnit( |
| content::RenderFrameHost* render_frame_host, |
| mojo::PendingReceiver<mojom::DocumentCoordinationUnit> receiver) { |
| // TODO(https://crbug.com/987445): Why else than due to speculative render |
| // frame hosts would this happen? Is there a race between the RFH creation |
| // notification and the mojo interface request? |
| auto it = frames_.find(render_frame_host); |
| if (it == frames_.end()) { |
| if (render_frame_host->IsRenderFrameCreated()) { |
| // This must be a speculative render frame host, generate a creation event |
| // for it a this point |
| RenderFrameCreated(render_frame_host); |
| |
| it = frames_.find(render_frame_host); |
| DCHECK(it != frames_.end()); |
| } else { |
| // It would be nice to know what's up here, maybe there's a race between |
| // in-progress interface requests and the frame deletion? |
| return; |
| } |
| } |
| |
| PerformanceManagerImpl::CallOnGraphImpl( |
| FROM_HERE, |
| base::BindOnce(&FrameNodeImpl::Bind, base::Unretained(it->second.get()), |
| std::move(receiver))); |
| } |
| |
| content::WebContents* PerformanceManagerTabHelper::GetWebContents() const { |
| return web_contents(); |
| } |
| |
| int64_t PerformanceManagerTabHelper::LastNavigationId() const { |
| return last_navigation_id_; |
| } |
| |
| int64_t PerformanceManagerTabHelper::LastNewDocNavigationId() const { |
| return last_new_doc_navigation_id_; |
| } |
| |
| FrameNodeImpl* PerformanceManagerTabHelper::GetFrameNode( |
| content::RenderFrameHost* render_frame_host) { |
| auto it = frames_.find(render_frame_host); |
| return it != frames_.end() ? it->second.get() : nullptr; |
| } |
| |
| void PerformanceManagerTabHelper::AddObserver(Observer* observer) { |
| observers_.AddObserver(observer); |
| } |
| |
| void PerformanceManagerTabHelper::RemoveObserver(Observer* observer) { |
| observers_.RemoveObserver(observer); |
| } |
| |
| void PerformanceManagerTabHelper::OnMainFrameNavigation(int64_t navigation_id, |
| bool same_doc) { |
| last_navigation_id_ = navigation_id; |
| if (!same_doc) |
| last_new_doc_navigation_id_ = navigation_id; |
| ukm_source_id_ = |
| ukm::ConvertToSourceId(navigation_id, ukm::SourceIdType::NAVIGATION_ID); |
| PerformanceManagerImpl::CallOnGraphImpl( |
| FROM_HERE, |
| base::BindOnce(&PageNodeImpl::SetUkmSourceId, |
| base::Unretained(page_node_.get()), ukm_source_id_)); |
| |
| first_time_title_set_ = false; |
| first_time_favicon_set_ = false; |
| } |
| |
| WEB_CONTENTS_USER_DATA_KEY_IMPL(PerformanceManagerTabHelper) |
| |
| } // namespace performance_manager |