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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
// 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.
#ifndef UI_AURA_REMOTE_WINDOW_TREE_HOST_WIN_H_
#define UI_AURA_REMOTE_WINDOW_TREE_HOST_WIN_H_
#include <vector>
#include "base/compiler_specific.h"
#include "base/strings/string16.h"
#include "ui/aura/window_tree_host.h"
#include "ui/base/ime/remote_input_method_delegate_win.h"
#include "ui/events/event.h"
#include "ui/events/event_constants.h"
#include "ui/events/event_source.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/metro_viewer/ime_types.h"
struct MetroViewerHostMsg_MouseButtonParams;
namespace base {
class FilePath;
}
namespace ui {
class RemoteInputMethodPrivateWin;
class ViewProp;
}
namespace IPC {
class Message;
class Sender;
}
namespace aura {
// WindowTreeHost implementaton that receives events from a different
// process. In the case of Windows this is the Windows 8 (aka Metro)
// frontend process, which forwards input events to this class.
class AURA_EXPORT RemoteWindowTreeHostWin
: public WindowTreeHost,
public ui::internal::RemoteInputMethodDelegateWin {
public:
// Returns the current RemoteWindowTreeHostWin. This does *not* create a
// RemoteWindowTreeHostWin.
static RemoteWindowTreeHostWin* Instance();
// Returns true if there is a RemoteWindowTreeHostWin and it has a valid
// HWND. A return value of false typically indicates we're not in metro mode.
static bool IsValid();
// Sets the handle to the remote window. The |remote_window| is the actual
// window owned by the viewer process. Call this before Connected() for some
// customers like input method initialization which needs the handle.
void SetRemoteWindowHandle(HWND remote_window);
HWND remote_window() { return remote_window_; }
// The |host| can be used when we need to send a message to it.
void Connected(IPC::Sender* host);
// Called when the remote process has closed its IPC connection.
void Disconnected();
// Called when we have a message from the remote process.
bool OnMessageReceived(const IPC::Message& message);
void HandleOpenURLOnDesktop(const base::FilePath& shortcut,
const base::string16& url);
void HandleWindowSizeChanged(uint32 width, uint32 height);
// Returns the active ASH root window.
Window* GetAshWindow();
// Returns true if the remote window is the foreground window according to the
// OS.
bool IsForegroundWindow();
protected:
RemoteWindowTreeHostWin();
~RemoteWindowTreeHostWin() override;
private:
// IPC message handing methods:
void OnMouseMoved(int32 x, int32 y, int32 flags);
void OnMouseButton(const MetroViewerHostMsg_MouseButtonParams& params);
void OnKeyDown(uint32 vkey,
uint32 repeat_count,
uint32 scan_code,
uint32 flags);
void OnKeyUp(uint32 vkey,
uint32 repeat_count,
uint32 scan_code,
uint32 flags);
void OnChar(uint32 key_code,
uint32 repeat_count,
uint32 scan_code,
uint32 flags);
void OnWindowActivated(bool repaint);
void OnEdgeGesture();
void OnTouchDown(int32 x, int32 y, uint64 timestamp, uint32 pointer_id);
void OnTouchUp(int32 x, int32 y, uint64 timestamp, uint32 pointer_id);
void OnTouchMoved(int32 x, int32 y, uint64 timestamp, uint32 pointer_id);
void OnSetCursorPosAck();
// For Input Method support:
ui::RemoteInputMethodPrivateWin* GetRemoteInputMethodPrivate();
void OnImeCandidatePopupChanged(bool visible);
void OnImeCompositionChanged(
const base::string16& text,
int32 selection_start,
int32 selection_end,
const std::vector<metro_viewer::UnderlineInfo>& underlines);
void OnImeTextCommitted(const base::string16& text);
void OnImeInputSourceChanged(uint16 language_id, bool is_ime);
// WindowTreeHost overrides:
ui::EventSource* GetEventSource() override;
gfx::AcceleratedWidget GetAcceleratedWidget() override;
void ShowImpl() override;
void HideImpl() override;
gfx::Rect GetBounds() const override;
void SetBounds(const gfx::Rect& bounds) override;
gfx::Point GetLocationOnNativeScreen() const override;
void SetCapture() override;
void ReleaseCapture() override;
void SetCursorNative(gfx::NativeCursor cursor) override;
void MoveCursorToNative(const gfx::Point& location) override;
void OnCursorVisibilityChangedNative(bool show) override;
// ui::internal::RemoteInputMethodDelegateWin overrides:
void CancelComposition() override;
void OnTextInputClientUpdated(
const std::vector<int32>& input_scopes,
const std::vector<gfx::Rect>& composition_character_bounds) override;
// Helper function to dispatch a keyboard message to the desired target.
// The default target is the WindowEventDispatcher. For nested message loop
// invocations we post a synthetic keyboard message directly into the message
// loop. The dispatcher for the nested loop would then decide how this
// message is routed.
void DispatchKeyboardMessage(ui::EventType type,
uint32 vkey,
uint32 repeat_count,
uint32 scan_code,
uint32 flags,
bool is_character);
// Sets the event flags. |flags| is a bitmask of EventFlags. If there is a
// change the system virtual key state is updated as well. This way if chrome
// queries for key state it matches that of event being dispatched.
void SetEventFlags(uint32 flags);
uint32 mouse_event_flags() const {
return event_flags_ & (ui::EF_LEFT_MOUSE_BUTTON |
ui::EF_MIDDLE_MOUSE_BUTTON |
ui::EF_RIGHT_MOUSE_BUTTON);
}
uint32 key_event_flags() const {
return event_flags_ & (ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN |
ui::EF_ALT_DOWN | ui::EF_CAPS_LOCK_DOWN);
}
HWND remote_window_;
IPC::Sender* host_;
scoped_ptr<ui::ViewProp> prop_;
// Incremented if we need to ignore mouse messages until the SetCursorPos
// operation is acked by the viewer.
int ignore_mouse_moves_until_set_cursor_ack_;
// Tracking last click event for synthetically generated mouse events.
scoped_ptr<ui::MouseEvent> last_mouse_click_event_;
// State of the keyboard/mouse at the time of the last input event. See
// description of SetEventFlags().
uint32 event_flags_;
// Current size of this root window.
gfx::Size window_size_;
DISALLOW_COPY_AND_ASSIGN(RemoteWindowTreeHostWin);
};
} // namespace aura
#endif // UI_AURA_REMOTE_WINDOW_TREE_HOST_WIN_H_
|
