1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
// 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),
frame_tree_node_(frame_tree_node) {
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() {
// 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 (!site_instance_->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()));
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
|
