src/content/browser/frame_host/render_frame_host_impl.cc

   1 // Copyright 2013 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 "content/browser/frame_host/render_frame_host_impl.h"
   6
   7 #include "base/containers/hash_tables.h"
   8 #include "base/lazy_instance.h"
   9 #include "content/browser/frame_host/frame_tree.h"
  10 #include "content/browser/renderer_host/render_view_host_impl.h"
  11 #include "content/common/frame_messages.h"
  12 #include "content/public/browser/browser_thread.h"
  13 #include "content/public/browser/render_process_host.h"
  14 #include "url/gurl.h"
  15
  16 namespace content {
  17
  18 // The (process id, routing id) pair that identifies one RenderFrame.
  19 typedef std::pair<int32, int32> RenderFrameHostID;
  20 typedef base::hash_map<RenderFrameHostID, RenderFrameHostImpl*>
  21     RoutingIDFrameMap;
  22 static base::LazyInstance<RoutingIDFrameMap> g_routing_id_frame_map =
  23     LAZY_INSTANCE_INITIALIZER;
  24
  25 // static
  26 RenderFrameHostImpl* RenderFrameHostImpl::FromID(
  27     int process_id, int routing_id) {
  28   RoutingIDFrameMap* frames = g_routing_id_frame_map.Pointer();
  29   RoutingIDFrameMap::iterator it = frames->find(
  30       RenderFrameHostID(process_id, routing_id));
  31   return it == frames->end() ? NULL : it->second;
  32 }
  33
  34 RenderFrameHostImpl::RenderFrameHostImpl(
  35     RenderViewHostImpl* render_view_host,
  36     FrameTree* frame_tree,
  37     int routing_id,
  38     bool is_swapped_out)
  39     : render_view_host_(render_view_host),
  40       frame_tree_(frame_tree),
  41       routing_id_(routing_id),
  42       is_swapped_out_(is_swapped_out) {
  43   GetProcess()->AddRoute(routing_id_, this);
  44   g_routing_id_frame_map.Get().insert(std::make_pair(
  45       RenderFrameHostID(GetProcess()->GetID(), routing_id_),
  46       this));
  47 }
  48
  49 RenderFrameHostImpl::~RenderFrameHostImpl() {
  50   GetProcess()->RemoveRoute(routing_id_);
  51   g_routing_id_frame_map.Get().erase(
  52       RenderFrameHostID(GetProcess()->GetID(), routing_id_));
  53
  54 }
  55
  56 bool RenderFrameHostImpl::Send(IPC::Message* message) {
  57   return GetProcess()->Send(message);
  58 }
  59
  60 bool RenderFrameHostImpl::OnMessageReceived(const IPC::Message &msg) {
  61   bool handled = true;
  62   bool msg_is_ok = true;
  63   IPC_BEGIN_MESSAGE_MAP_EX(RenderFrameHostImpl, msg, msg_is_ok)
  64     IPC_MESSAGE_HANDLER(FrameHostMsg_Detach, OnDetach)
  65     IPC_MESSAGE_HANDLER(FrameHostMsg_DidStartProvisionalLoadForFrame,
  66                         OnDidStartProvisionalLoadForFrame)
  67   IPC_END_MESSAGE_MAP_EX()
  68
  69   return handled;
  70 }
  71
  72 void RenderFrameHostImpl::Init() {
  73   GetProcess()->ResumeRequestsForView(routing_id());
  74 }
  75
  76 RenderProcessHost* RenderFrameHostImpl::GetProcess() const {
  77   // TODO(nasko): This should return its own process, once we have working
  78   // cross-process navigation for subframes.
  79   return render_view_host_->GetProcess();
  80 }
  81
  82 void RenderFrameHostImpl::OnCreateChildFrame(int new_frame_routing_id,
  83                                              int64 parent_frame_id,
  84                                              int64 frame_id,
  85                                              const std::string& frame_name) {
  86   frame_tree_->AddFrame(new_frame_routing_id, parent_frame_id, frame_id,
  87                         frame_name);
  88 }
  89
  90 void RenderFrameHostImpl::OnDetach(int64 parent_frame_id, int64 frame_id) {
  91   frame_tree_->RemoveFrame(parent_frame_id, frame_id);
  92 }
  93
  94 void RenderFrameHostImpl::OnDidStartProvisionalLoadForFrame(
  95     int64 frame_id,
  96     int64 parent_frame_id,
  97     bool is_main_frame,
  98     const GURL& url) {
  99   render_view_host_->OnDidStartProvisionalLoadForFrame(
 100       frame_id, parent_frame_id, is_main_frame, url);
 101 }
 102
 103 }  // namespace content