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
|
// Copyright (c) 2012 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 "remoting/host/session_event_executor_win.h"
#include <string>
#include "base/bind.h"
#include "base/command_line.h"
#include "base/compiler_specific.h"
#include "base/message_loop.h"
#include "ipc/ipc_channel.h"
#include "ipc/ipc_channel_proxy.h"
#include "remoting/proto/event.pb.h"
#include "remoting/host/chromoting_messages.h"
#include "remoting/host/desktop_win.h"
namespace {
// The command line switch specifying the name of the Chromoting IPC channel.
const char kProcessChannelId[] = "chromoting-ipc";
const uint32 kUsbLeftControl = 0x0700e0;
const uint32 kUsbRightControl = 0x0700e4;
const uint32 kUsbLeftAlt = 0x0700e2;
const uint32 kUsbRightAlt = 0x0700e6;
const uint32 kUsbDelete = 0x07004c;
bool areCtrlAndAltPressed(const std::set<uint32>& pressed_keys) {
size_t ctrl_keys = pressed_keys.count(kUsbLeftControl) +
pressed_keys.count(kUsbRightControl);
size_t alt_keys = pressed_keys.count(kUsbLeftAlt) +
pressed_keys.count(kUsbRightAlt);
return ctrl_keys != 0 && alt_keys != 0 &&
(ctrl_keys + alt_keys == pressed_keys.size());
}
} // namespace
namespace remoting {
using protocol::ClipboardEvent;
using protocol::MouseEvent;
using protocol::KeyEvent;
SessionEventExecutorWin::SessionEventExecutorWin(
MessageLoop* message_loop,
base::MessageLoopProxy* io_message_loop,
scoped_ptr<EventExecutor> nested_executor)
: nested_executor_(nested_executor.Pass()),
message_loop_(message_loop) {
std::string channel_name =
CommandLine::ForCurrentProcess()->GetSwitchValueASCII(kProcessChannelId);
// Connect to the Chromoting IPC channel if the name was passed in the command
// line.
if (!channel_name.empty()) {
chromoting_channel_.reset(new IPC::ChannelProxy(
channel_name,
IPC::Channel::MODE_CLIENT,
this,
io_message_loop));
}
}
SessionEventExecutorWin::~SessionEventExecutorWin() {
}
void SessionEventExecutorWin::OnSessionStarted() {
// TODO(simonmorris): Delegate to the nested executor.
}
void SessionEventExecutorWin::OnSessionFinished() {
// TODO(simonmorris): Delegate to the nested executor.
}
void SessionEventExecutorWin::InjectClipboardEvent(
const ClipboardEvent& event) {
// TODO(simonmorris): Delegate to the nested executor.
}
void SessionEventExecutorWin::InjectKeyEvent(const KeyEvent& event) {
if (MessageLoop::current() != message_loop_) {
message_loop_->PostTask(
FROM_HERE,
base::Bind(&SessionEventExecutorWin::InjectKeyEvent,
base::Unretained(this), event));
return;
}
// HostEventDispatcher should drop events lacking the pressed field.
DCHECK(event.has_pressed());
if (event.has_usb_keycode()) {
if (event.pressed()) {
// Simulate secure attention sequence if Ctrl-Alt-Del was just pressed.
if (event.usb_keycode() == kUsbDelete &&
areCtrlAndAltPressed(pressed_keys_)) {
VLOG(3) << "Sending Secure Attention Sequence to console";
if (chromoting_channel_.get())
chromoting_channel_->Send(new ChromotingHostMsg_SendSasToConsole());
}
pressed_keys_.insert(event.usb_keycode());
} else {
pressed_keys_.erase(event.usb_keycode());
}
}
SwitchToInputDesktop();
nested_executor_->InjectKeyEvent(event);
}
void SessionEventExecutorWin::InjectMouseEvent(const MouseEvent& event) {
if (MessageLoop::current() != message_loop_) {
message_loop_->PostTask(
FROM_HERE,
base::Bind(&SessionEventExecutorWin::InjectMouseEvent,
base::Unretained(this), event));
return;
}
SwitchToInputDesktop();
nested_executor_->InjectMouseEvent(event);
}
bool SessionEventExecutorWin::OnMessageReceived(const IPC::Message& message) {
return false;
}
void SessionEventExecutorWin::SwitchToInputDesktop() {
// Switch to the desktop receiving user input if different from the current
// one.
scoped_ptr<DesktopWin> input_desktop = DesktopWin::GetInputDesktop();
if (input_desktop.get() != NULL && !desktop_.IsSame(*input_desktop)) {
// If SetThreadDesktop() fails, the thread is still assigned a desktop.
// So we can continue capture screen bits, just from a diffected desktop.
desktop_.SetThreadDesktop(input_desktop.Pass());
}
}
} // namespace remoting
|
