blob: 5b74b1ed4afbf9be778ef147587d70dad5fb9b3a [file] [log] [blame]
// 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