1 // Copyright (c) 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 "win8/viewer/metro_viewer_process_host.h"
6
7 #include <shlobj.h>
8
9 #include "base/command_line.h"
10 #include "base/file_util.h"
11 #include "base/files/file_path.h"
12 #include "base/memory/ref_counted.h"
13 #include "base/process/process.h"
14 #include "base/strings/string16.h"
15 #include "base/synchronization/waitable_event.h"
16 #include "base/time/time.h"
17 #include "base/win/scoped_comptr.h"
18 #include "ipc/ipc_message.h"
19 #include "ipc/ipc_message_macros.h"
20 #include "ui/aura/remote_root_window_host_win.h"
21 #include "ui/metro_viewer/metro_viewer_messages.h"
22 #include "win8/viewer/metro_viewer_constants.h"
23
24 namespace win8 {
25
InternalMessageFilter(MetroViewerProcessHost * owner)26 MetroViewerProcessHost::InternalMessageFilter::InternalMessageFilter(
27 MetroViewerProcessHost* owner) : owner_(owner) {
28 }
29
OnChannelConnected(int32)30 void MetroViewerProcessHost::InternalMessageFilter::OnChannelConnected(
31 int32 /* peer_pid */) {
32 owner_->NotifyChannelConnected();
33 }
34
MetroViewerProcessHost(base::SingleThreadTaskRunner * ipc_task_runner)35 MetroViewerProcessHost::MetroViewerProcessHost(
36 base::SingleThreadTaskRunner* ipc_task_runner) {
37
38 channel_.reset(new IPC::ChannelProxy(
39 kMetroViewerIPCChannelName,
40 IPC::Channel::MODE_NAMED_SERVER,
41 this,
42 ipc_task_runner));
43 }
44
~MetroViewerProcessHost()45 MetroViewerProcessHost::~MetroViewerProcessHost() {
46 }
47
GetViewerProcessId()48 base::ProcessId MetroViewerProcessHost::GetViewerProcessId() {
49 if (channel_)
50 return channel_->peer_pid();
51 return base::kNullProcessId;
52 }
53
LaunchViewerAndWaitForConnection(const base::string16 & app_user_model_id)54 bool MetroViewerProcessHost::LaunchViewerAndWaitForConnection(
55 const base::string16& app_user_model_id) {
56 DCHECK_EQ(base::kNullProcessId, channel_->peer_pid());
57
58 channel_connected_event_.reset(new base::WaitableEvent(false, false));
59
60 scoped_refptr<InternalMessageFilter> message_filter(
61 new InternalMessageFilter(this));
62 channel_->AddFilter(message_filter);
63
64 base::win::ScopedComPtr<IApplicationActivationManager> activator;
65 HRESULT hr = activator.CreateInstance(CLSID_ApplicationActivationManager);
66 if (SUCCEEDED(hr)) {
67 DWORD pid = 0;
68 // Use the "connect" verb to
69 hr = activator->ActivateApplication(
70 app_user_model_id.c_str(), kMetroViewerConnectVerb, AO_NONE, &pid);
71 }
72
73 LOG_IF(ERROR, FAILED(hr)) << "Tried and failed to launch Metro Chrome. "
74 << "hr=" << std::hex << hr;
75
76 // Having launched the viewer process, now we wait for it to connect.
77 bool success =
78 channel_connected_event_->TimedWait(base::TimeDelta::FromSeconds(60));
79 channel_connected_event_.reset();
80
81 // |message_filter| is only used to signal |channel_connected_event_| above
82 // and can thus be removed after |channel_connected_event_| is no longer
83 // waiting.
84 channel_->RemoveFilter(message_filter);
85 return success;
86 }
87
Send(IPC::Message * msg)88 bool MetroViewerProcessHost::Send(IPC::Message* msg) {
89 return channel_->Send(msg);
90 }
91
OnMessageReceived(const IPC::Message & message)92 bool MetroViewerProcessHost::OnMessageReceived(
93 const IPC::Message& message) {
94 DCHECK(CalledOnValidThread());
95 bool handled = true;
96 IPC_BEGIN_MESSAGE_MAP(MetroViewerProcessHost, message)
97 IPC_MESSAGE_HANDLER(MetroViewerHostMsg_SetTargetSurface, OnSetTargetSurface)
98 IPC_MESSAGE_HANDLER(MetroViewerHostMsg_OpenURL, OnOpenURL)
99 IPC_MESSAGE_HANDLER(MetroViewerHostMsg_SearchRequest, OnHandleSearchRequest)
100 IPC_MESSAGE_HANDLER(MetroViewerHostMsg_WindowSizeChanged,
101 OnWindowSizeChanged)
102 IPC_MESSAGE_UNHANDLED(handled = false)
103 IPC_END_MESSAGE_MAP()
104 return handled ? true :
105 aura::RemoteRootWindowHostWin::Instance()->OnMessageReceived(message);
106 }
107
NotifyChannelConnected()108 void MetroViewerProcessHost::NotifyChannelConnected() {
109 if (channel_connected_event_)
110 channel_connected_event_->Signal();
111 }
112
113 } // namespace win8
114