| // Copyright 2014 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 "content/browser/frame_host/render_frame_proxy_host.h" |
| |
| #include "base/lazy_instance.h" |
| #include "content/browser/frame_host/cross_process_frame_connector.h" |
| #include "content/browser/frame_host/frame_tree.h" |
| #include "content/browser/frame_host/frame_tree_node.h" |
| #include "content/browser/frame_host/render_frame_host_impl.h" |
| #include "content/browser/frame_host/render_widget_host_view_child_frame.h" |
| #include "content/browser/renderer_host/render_view_host_impl.h" |
| #include "content/browser/renderer_host/render_widget_host_view_base.h" |
| #include "content/browser/site_instance_impl.h" |
| #include "content/common/frame_messages.h" |
| #include "content/public/browser/browser_thread.h" |
| #include "ipc/ipc_message.h" |
| |
| namespace content { |
| |
| namespace { |
| |
| // The (process id, routing id) pair that identifies one RenderFrameProxy. |
| typedef std::pair<int32, int32> RenderFrameProxyHostID; |
| typedef base::hash_map<RenderFrameProxyHostID, RenderFrameProxyHost*> |
| RoutingIDFrameProxyMap; |
| base::LazyInstance<RoutingIDFrameProxyMap> g_routing_id_frame_proxy_map = |
| LAZY_INSTANCE_INITIALIZER; |
| |
| } |
| |
| // static |
| RenderFrameProxyHost* RenderFrameProxyHost::FromID(int process_id, |
| int routing_id) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
| RoutingIDFrameProxyMap* frames = g_routing_id_frame_proxy_map.Pointer(); |
| RoutingIDFrameProxyMap::iterator it = frames->find( |
| RenderFrameProxyHostID(process_id, routing_id)); |
| return it == frames->end() ? NULL : it->second; |
| } |
| |
| RenderFrameProxyHost::RenderFrameProxyHost(SiteInstance* site_instance, |
| FrameTreeNode* frame_tree_node) |
| : routing_id_(site_instance->GetProcess()->GetNextRoutingID()), |
| site_instance_(site_instance), |
| process_(site_instance->GetProcess()), |
| frame_tree_node_(frame_tree_node), |
| render_frame_proxy_created_(false) { |
| GetProcess()->AddRoute(routing_id_, this); |
| CHECK(g_routing_id_frame_proxy_map.Get().insert( |
| std::make_pair( |
| RenderFrameProxyHostID(GetProcess()->GetID(), routing_id_), |
| this)).second); |
| |
| if (!frame_tree_node_->IsMainFrame() && |
| frame_tree_node_->parent() |
| ->render_manager() |
| ->current_frame_host() |
| ->GetSiteInstance() == site_instance) { |
| // The RenderFrameHost navigating cross-process is destroyed and a proxy for |
| // it is created in the parent's process. CrossProcessFrameConnector |
| // initialization only needs to happen on an initial cross-process |
| // navigation, when the RenderFrameHost leaves the same process as its |
| // parent. The same CrossProcessFrameConnector is used for subsequent cross- |
| // process navigations, but it will be destroyed if the frame is |
| // navigated back to the same SiteInstance as its parent. |
| cross_process_frame_connector_.reset(new CrossProcessFrameConnector(this)); |
| } |
| } |
| |
| RenderFrameProxyHost::~RenderFrameProxyHost() { |
| if (GetProcess()->HasConnection()) { |
| // TODO(nasko): For now, don't send this IPC for top-level frames, as |
| // the top-level RenderFrame will delete the RenderFrameProxy. |
| // This can be removed once we don't have a swapped out state on |
| // RenderFrame. See https://crbug.com/357747 |
| if (!frame_tree_node_->IsMainFrame()) |
| Send(new FrameMsg_DeleteProxy(routing_id_)); |
| } |
| |
| GetProcess()->RemoveRoute(routing_id_); |
| g_routing_id_frame_proxy_map.Get().erase( |
| RenderFrameProxyHostID(GetProcess()->GetID(), routing_id_)); |
| } |
| |
| void RenderFrameProxyHost::SetChildRWHView(RenderWidgetHostView* view) { |
| cross_process_frame_connector_->set_view( |
| static_cast<RenderWidgetHostViewChildFrame*>(view)); |
| } |
| |
| RenderViewHostImpl* RenderFrameProxyHost::GetRenderViewHost() { |
| return frame_tree_node_->frame_tree()->GetRenderViewHost( |
| site_instance_.get()); |
| } |
| |
| void RenderFrameProxyHost::TakeFrameHostOwnership( |
| scoped_ptr<RenderFrameHostImpl> render_frame_host) { |
| render_frame_host_ = render_frame_host.Pass(); |
| render_frame_host_->set_render_frame_proxy_host(this); |
| } |
| |
| scoped_ptr<RenderFrameHostImpl> RenderFrameProxyHost::PassFrameHostOwnership() { |
| render_frame_host_->set_render_frame_proxy_host(NULL); |
| return render_frame_host_.Pass(); |
| } |
| |
| bool RenderFrameProxyHost::Send(IPC::Message *msg) { |
| return GetProcess()->Send(msg); |
| } |
| |
| bool RenderFrameProxyHost::OnMessageReceived(const IPC::Message& msg) { |
| if (cross_process_frame_connector_.get() && |
| cross_process_frame_connector_->OnMessageReceived(msg)) |
| return true; |
| |
| bool handled = true; |
| IPC_BEGIN_MESSAGE_MAP(RenderFrameProxyHost, msg) |
| IPC_MESSAGE_HANDLER(FrameHostMsg_OpenURL, OnOpenURL) |
| IPC_MESSAGE_UNHANDLED(handled = false) |
| IPC_END_MESSAGE_MAP() |
| return handled; |
| } |
| |
| bool RenderFrameProxyHost::InitRenderFrameProxy() { |
| DCHECK(!render_frame_proxy_created_); |
| // The process may (if we're sharing a process with another host that already |
| // initialized it) or may not (we have our own process or the old process |
| // crashed) have been initialized. Calling Init multiple times will be |
| // ignored, so this is safe. |
| if (!GetProcess()->Init()) |
| return false; |
| |
| DCHECK(GetProcess()->HasConnection()); |
| |
| int parent_routing_id = MSG_ROUTING_NONE; |
| if (frame_tree_node_->parent()) { |
| parent_routing_id = frame_tree_node_->parent() |
| ->render_manager() |
| ->GetRoutingIdForSiteInstance(site_instance_.get()); |
| CHECK_NE(parent_routing_id, MSG_ROUTING_NONE); |
| } |
| |
| Send(new FrameMsg_NewFrameProxy(routing_id_, |
| parent_routing_id, |
| frame_tree_node_->frame_tree() |
| ->GetRenderViewHost(site_instance_.get()) |
| ->GetRoutingID(), |
| frame_tree_node_ |
| ->current_replication_state())); |
| |
| render_frame_proxy_created_ = true; |
| return true; |
| } |
| |
| void RenderFrameProxyHost::DisownOpener() { |
| Send(new FrameMsg_DisownOpener(GetRoutingID())); |
| } |
| |
| void RenderFrameProxyHost::OnOpenURL( |
| const FrameHostMsg_OpenURL_Params& params) { |
| frame_tree_node_->current_frame_host()->OpenURL(params, site_instance_.get()); |
| } |
| |
| } // namespace content |