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
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
// Copyright 2016 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 "ui/ozone/platform/wayland/host/wayland_keyboard.h"
#include <utility>
#include "base/files/scoped_file.h"
#include "base/memory/unsafe_shared_memory_region.h"
#include "base/unguessable_token.h"
#include "ui/base/buildflags.h"
#include "ui/events/base_event_utils.h"
#include "ui/events/event.h"
#include "ui/events/keycodes/dom/dom_code.h"
#include "ui/events/keycodes/dom/dom_key.h"
#include "ui/events/keycodes/dom/keycode_converter.h"
#include "ui/events/keycodes/keyboard_codes_posix.h"
#include "ui/events/ozone/evdev/keyboard_util_evdev.h"
#include "ui/events/ozone/layout/keyboard_layout_engine.h"
#include "ui/events/ozone/layout/keyboard_layout_engine_manager.h"
#include "ui/events/types/event_type.h"
#include "ui/ozone/platform/wayland/common/wayland_util.h"
#include "ui/ozone/platform/wayland/host/wayland_connection.h"
#include "ui/ozone/platform/wayland/host/wayland_window.h"
#if BUILDFLAG(USE_XKBCOMMON)
#include "ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.h"
#endif
namespace ui {
// static
const wl_callback_listener WaylandKeyboard::callback_listener_ = {
WaylandKeyboard::SyncCallback,
};
WaylandKeyboard::WaylandKeyboard(
wl_keyboard* keyboard,
zcr_keyboard_extension_v1* keyboard_extension_v1,
WaylandConnection* connection,
KeyboardLayoutEngine* layout_engine,
Delegate* delegate)
: obj_(keyboard),
connection_(connection),
delegate_(delegate),
auto_repeat_handler_(this),
#if BUILDFLAG(USE_XKBCOMMON)
layout_engine_(static_cast<XkbKeyboardLayoutEngine*>(layout_engine)) {
#else
layout_engine_(layout_engine) {
#endif
static const wl_keyboard_listener listener = {
&WaylandKeyboard::Keymap, &WaylandKeyboard::Enter,
&WaylandKeyboard::Leave, &WaylandKeyboard::Key,
&WaylandKeyboard::Modifiers, &WaylandKeyboard::RepeatInfo,
};
DCHECK(delegate_);
delegate_->OnKeyboardCreated(this);
wl_keyboard_add_listener(obj_.get(), &listener, this);
// TODO(tonikitoo): Default auto-repeat to ON here?
if (keyboard_extension_v1)
extended_keyboard_v1_.reset(zcr_keyboard_extension_v1_get_extended_keyboard(
keyboard_extension_v1, obj_.get()));
}
WaylandKeyboard::~WaylandKeyboard() {
delegate_->OnKeyboardDestroyed(this);
}
void WaylandKeyboard::Keymap(void* data,
wl_keyboard* obj,
uint32_t format,
int32_t keymap_fd,
uint32_t size) {
WaylandKeyboard* keyboard = static_cast<WaylandKeyboard*>(data);
DCHECK(keyboard);
base::ScopedFD fd(keymap_fd);
auto length = size - 1;
auto shmen = base::subtle::PlatformSharedMemoryRegion::Take(
std::move(fd), base::subtle::PlatformSharedMemoryRegion::Mode::kUnsafe,
length, base::UnguessableToken::Create());
auto mapped_memory =
base::UnsafeSharedMemoryRegion::Deserialize(std::move(shmen)).Map();
const char* keymap = mapped_memory.GetMemoryAs<char>();
if (!keymap || format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1)
return;
bool success = keyboard->layout_engine_->SetCurrentLayoutFromBuffer(
keymap, mapped_memory.size());
DCHECK(success) << "Failed to set the XKB keyboard mapping.";
}
void WaylandKeyboard::Enter(void* data,
wl_keyboard* obj,
uint32_t serial,
wl_surface* surface,
wl_array* keys) {
// wl_surface might have been destroyed by this time.
if (auto* window = wl::RootWindowFromWlSurface(surface)) {
auto* self = static_cast<WaylandKeyboard*>(data);
self->delegate_->OnKeyboardFocusChanged(window, /*focused=*/true);
}
}
void WaylandKeyboard::Leave(void* data,
wl_keyboard* obj,
uint32_t serial,
wl_surface* surface) {
// wl_surface might have been destroyed by this time.
auto* self = static_cast<WaylandKeyboard*>(data);
if (auto* window = wl::RootWindowFromWlSurface(surface))
self->delegate_->OnKeyboardFocusChanged(window, /*focused=*/false);
// Upon window focus lose, reset the key repeat timers.
self->auto_repeat_handler_.StopKeyRepeat();
}
void WaylandKeyboard::Key(void* data,
wl_keyboard* obj,
uint32_t serial,
uint32_t time,
uint32_t key,
uint32_t state) {
WaylandKeyboard* keyboard = static_cast<WaylandKeyboard*>(data);
DCHECK(keyboard);
bool down = state == WL_KEYBOARD_KEY_STATE_PRESSED;
if (down)
keyboard->connection_->set_serial(serial, ET_KEY_PRESSED);
int device_id = keyboard->device_id();
keyboard->auto_repeat_handler_.UpdateKeyRepeat(
key, 0 /*scan_code*/, down, false /*suppress_auto_repeat*/, device_id);
// TODO(tonikitoo,msisov): Handler 'repeat' parameter below.
keyboard->DispatchKey(key, 0 /*scan_code*/, down, false /*repeat*/,
EventTimeForNow(), device_id, EF_NONE);
}
void WaylandKeyboard::Modifiers(void* data,
wl_keyboard* obj,
uint32_t serial,
uint32_t depressed,
uint32_t latched,
uint32_t locked,
uint32_t group) {
#if BUILDFLAG(USE_XKBCOMMON)
WaylandKeyboard* keyboard = static_cast<WaylandKeyboard*>(data);
DCHECK(keyboard);
int modifiers = keyboard->layout_engine_->UpdateModifiers(depressed, latched,
locked, group);
keyboard->delegate_->OnKeyboardModifiersChanged(modifiers);
#endif
}
void WaylandKeyboard::RepeatInfo(void* data,
wl_keyboard* obj,
int32_t rate,
int32_t delay) {
WaylandKeyboard* keyboard = static_cast<WaylandKeyboard*>(data);
DCHECK(keyboard);
keyboard->auto_repeat_handler_.SetAutoRepeatRate(
base::TimeDelta::FromMilliseconds(delay),
base::TimeDelta::FromMilliseconds(rate));
}
void WaylandKeyboard::FlushInput(base::OnceClosure closure) {
if (sync_callback_)
return;
auto_repeat_closure_ = std::move(closure);
// wl_display_sync gives a chance for any key "up" events to arrive.
// With a well behaved wayland compositor this should ensure we never
// get spurious repeats.
sync_callback_.reset(wl_display_sync(connection_->display()));
wl_callback_add_listener(sync_callback_.get(), &callback_listener_, this);
connection_->ScheduleFlush();
}
void WaylandKeyboard::DispatchKey(uint32_t key,
uint32_t scan_code,
bool down,
bool repeat,
base::TimeTicks timestamp,
int device_id,
int flags) {
DomCode dom_code =
KeycodeConverter::NativeKeycodeToDomCode(EvdevCodeToNativeCode(key));
if (dom_code == ui::DomCode::NONE)
return;
// Pass empty DomKey and KeyboardCode here so the delegate can pre-process
// and decode it when needed.
uint32_t result = delegate_->OnKeyboardKeyEvent(
down ? ET_KEY_PRESSED : ET_KEY_RELEASED, dom_code, repeat, timestamp);
if (extended_keyboard_v1_) {
bool handled = result & POST_DISPATCH_STOP_PROPAGATION;
zcr_extended_keyboard_v1_ack_key(extended_keyboard_v1_.get(),
connection_->serial(), handled);
}
}
bool WaylandKeyboard::Decode(DomCode dom_code,
int modifiers,
DomKey* out_dom_key,
KeyboardCode* out_key_code) {
DCHECK(out_dom_key);
DCHECK(out_key_code);
return layout_engine_->Lookup(dom_code, modifiers, out_dom_key, out_key_code);
}
void WaylandKeyboard::SyncCallback(void* data,
struct wl_callback* cb,
uint32_t time) {
WaylandKeyboard* keyboard = static_cast<WaylandKeyboard*>(data);
DCHECK(keyboard);
DCHECK(keyboard->auto_repeat_closure_);
std::move(keyboard->auto_repeat_closure_).Run();
keyboard->sync_callback_.reset();
}
} // namespace ui
|
