blob: 7d29e68d4379784fc7a0eccc462889adbd34f362 (
plain)
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
|
// 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 "ash/accelerators/accelerator_dispatcher.h"
#if defined(USE_X11)
#include <X11/Xlib.h>
// Xlib defines RootWindow
#ifdef RootWindow
#undef RootWindow
#endif
#endif // defined(USE_X11)
#include "ash/accelerators/accelerator_controller.h"
#include "ash/shell.h"
#include "ash/wm/event_rewriter_event_filter.h"
#include "ui/aura/env.h"
#include "ui/aura/root_window.h"
#include "ui/base/accelerators/accelerator.h"
#include "ui/events/event.h"
#include "ui/events/event_constants.h"
#include "ui/events/event_utils.h"
#include "ui/views/controls/menu/menu_controller.h"
namespace ash {
namespace {
const int kModifierMask = (ui::EF_SHIFT_DOWN |
ui::EF_CONTROL_DOWN |
ui::EF_ALT_DOWN);
#if defined(OS_WIN)
bool IsKeyEvent(const MSG& msg) {
return
msg.message == WM_KEYDOWN || msg.message == WM_SYSKEYDOWN ||
msg.message == WM_KEYUP || msg.message == WM_SYSKEYUP;
}
#elif defined(USE_X11)
bool IsKeyEvent(const XEvent* xev) {
return xev->type == KeyPress || xev->type == KeyRelease;
}
#elif defined(USE_OZONE)
bool IsKeyEvent(const base::NativeEvent& native_event) {
const ui::KeyEvent* event = static_cast<const ui::KeyEvent*>(native_event);
return event->IsKeyEvent();
}
#endif
bool IsPossibleAcceleratorNotForMenu(const ui::KeyEvent& key_event) {
// For shortcuts generated by Ctrl or Alt plus a letter, number or
// the tab key, we want to exit the context menu first and then
// repost the event. That allows for the shortcut execution after
// the context menu has exited.
if (key_event.type() == ui::ET_KEY_PRESSED &&
(key_event.flags() & (ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN))) {
const ui::KeyboardCode key_code = key_event.key_code();
if ((key_code >= ui::VKEY_A && key_code <= ui::VKEY_Z) ||
(key_code >= ui::VKEY_0 && key_code <= ui::VKEY_9) ||
(key_code == ui::VKEY_TAB)) {
return true;
}
}
return false;
}
} // namespace
AcceleratorDispatcher::AcceleratorDispatcher(
base::MessagePumpDispatcher* nested_dispatcher,
aura::Window* associated_window)
: nested_dispatcher_(nested_dispatcher),
associated_window_(associated_window) {
DCHECK(nested_dispatcher_);
associated_window_->AddObserver(this);
}
AcceleratorDispatcher::~AcceleratorDispatcher() {
if (associated_window_)
associated_window_->RemoveObserver(this);
}
void AcceleratorDispatcher::OnWindowDestroying(aura::Window* window) {
if (associated_window_ == window)
associated_window_ = NULL;
}
bool AcceleratorDispatcher::Dispatch(const base::NativeEvent& event) {
if (!associated_window_)
return false;
if (!ui::IsNoopEvent(event) && !associated_window_->CanReceiveEvents())
return aura::Env::GetInstance()->GetDispatcher()->Dispatch(event);
if (IsKeyEvent(event)) {
// Modifiers can be changed by the user preference, so we need to rewrite
// the event explicitly.
ui::KeyEvent key_event(event, false);
ui::EventHandler* event_rewriter =
ash::Shell::GetInstance()->event_rewriter_filter();
DCHECK(event_rewriter);
event_rewriter->OnKeyEvent(&key_event);
if (key_event.stopped_propagation())
return true;
if (IsPossibleAcceleratorNotForMenu(key_event)) {
if (views::MenuController* menu_controller =
views::MenuController::GetActiveInstance()) {
menu_controller->CancelAll();
#if defined(USE_X11)
XPutBackEvent(event->xany.display, event);
#else
NOTIMPLEMENTED() << " Repost NativeEvent here.";
#endif
return false;
}
}
ash::AcceleratorController* accelerator_controller =
ash::Shell::GetInstance()->accelerator_controller();
if (accelerator_controller) {
ui::Accelerator accelerator(key_event.key_code(),
key_event.flags() & kModifierMask);
if (key_event.type() == ui::ET_KEY_RELEASED)
accelerator.set_type(ui::ET_KEY_RELEASED);
// Fill out context object so AcceleratorController will know what
// was the previous accelerator or if the current accelerator is repeated.
Shell::GetInstance()->accelerator_controller()->context()->
UpdateContext(accelerator);
if (accelerator_controller->Process(accelerator))
return true;
}
return nested_dispatcher_->Dispatch(key_event.native_event());
}
return nested_dispatcher_->Dispatch(event);
}
} // namespace ash
|
