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// Copyright 2013 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_host_impl.h"
#include "base/containers/hash_tables.h"
#include "base/lazy_instance.h"
#include "content/browser/frame_host/frame_tree.h"
#include "content/browser/frame_host/frame_tree_node.h"
#include "content/browser/frame_host/navigator.h"
#include "content/browser/frame_host/render_frame_host_delegate.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/common/frame_messages.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/user_metrics.h"
#include "url/gurl.h"
namespace content {
// The (process id, routing id) pair that identifies one RenderFrame.
typedef std::pair<int32, int32> RenderFrameHostID;
typedef base::hash_map<RenderFrameHostID, RenderFrameHostImpl*>
RoutingIDFrameMap;
static base::LazyInstance<RoutingIDFrameMap> g_routing_id_frame_map =
LAZY_INSTANCE_INITIALIZER;
RenderFrameHost* RenderFrameHost::FromID(int render_process_id,
int render_frame_id) {
return RenderFrameHostImpl::FromID(render_process_id, render_frame_id);
}
// static
RenderFrameHostImpl* RenderFrameHostImpl::FromID(
int process_id, int routing_id) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
RoutingIDFrameMap* frames = g_routing_id_frame_map.Pointer();
RoutingIDFrameMap::iterator it = frames->find(
RenderFrameHostID(process_id, routing_id));
return it == frames->end() ? NULL : it->second;
}
RenderFrameHostImpl::RenderFrameHostImpl(
RenderViewHostImpl* render_view_host,
RenderFrameHostDelegate* delegate,
FrameTree* frame_tree,
FrameTreeNode* frame_tree_node,
int routing_id,
bool is_swapped_out)
: render_view_host_(render_view_host),
delegate_(delegate),
frame_tree_(frame_tree),
frame_tree_node_(frame_tree_node),
routing_id_(routing_id),
is_swapped_out_(is_swapped_out) {
frame_tree_->RegisterRenderFrameHost(this);
GetProcess()->AddRoute(routing_id_, this);
g_routing_id_frame_map.Get().insert(std::make_pair(
RenderFrameHostID(GetProcess()->GetID(), routing_id_),
this));
}
RenderFrameHostImpl::~RenderFrameHostImpl() {
GetProcess()->RemoveRoute(routing_id_);
g_routing_id_frame_map.Get().erase(
RenderFrameHostID(GetProcess()->GetID(), routing_id_));
if (delegate_)
delegate_->RenderFrameDeleted(this);
// Notify the FrameTree that this RFH is going away, allowing it to shut down
// the corresponding RenderViewHost if it is no longer needed.
frame_tree_->UnregisterRenderFrameHost(this);
}
RenderProcessHost* RenderFrameHostImpl::GetProcess() {
// TODO(nasko): This should return its own process, once we have working
// cross-process navigation for subframes.
return render_view_host_->GetProcess();
}
int RenderFrameHostImpl::GetRoutingID() {
return routing_id_;
}
bool RenderFrameHostImpl::Send(IPC::Message* message) {
return GetProcess()->Send(message);
}
bool RenderFrameHostImpl::OnMessageReceived(const IPC::Message &msg) {
if (delegate_->OnMessageReceived(this, msg))
return true;
bool handled = true;
bool msg_is_ok = true;
IPC_BEGIN_MESSAGE_MAP_EX(RenderFrameHostImpl, msg, msg_is_ok)
IPC_MESSAGE_HANDLER(FrameHostMsg_Detach, OnDetach)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidStartProvisionalLoadForFrame,
OnDidStartProvisionalLoadForFrame)
IPC_END_MESSAGE_MAP_EX()
if (!msg_is_ok) {
// The message had a handler, but its de-serialization failed.
// Kill the renderer.
RecordAction(UserMetricsAction("BadMessageTerminate_RFH"));
GetProcess()->ReceivedBadMessage();
}
return handled;
}
void RenderFrameHostImpl::Init() {
GetProcess()->ResumeRequestsForView(routing_id());
}
void RenderFrameHostImpl::OnCreateChildFrame(int new_frame_routing_id,
int64 parent_frame_id,
int64 frame_id,
const std::string& frame_name) {
RenderFrameHostImpl* new_frame = frame_tree_->AddFrame(
new_frame_routing_id, parent_frame_id, frame_id, frame_name);
if (delegate_)
delegate_->RenderFrameCreated(new_frame);
}
void RenderFrameHostImpl::OnDetach(int64 parent_frame_id, int64 frame_id) {
frame_tree_->RemoveFrame(this, parent_frame_id, frame_id);
}
void RenderFrameHostImpl::OnDidStartProvisionalLoadForFrame(
int64 frame_id,
int64 parent_frame_id,
bool is_main_frame,
const GURL& url) {
frame_tree_node_->navigator()->DidStartProvisionalLoad(
this, frame_id, parent_frame_id, is_main_frame, url);
}
} // namespace content
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