forked from chromium/chromium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
ime_controller_impl.cc
284 lines (236 loc) · 8.66 KB
/
ime_controller_impl.cc
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
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
// Copyright 2017 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/ime/ime_controller_impl.h"
#include <utility>
#include "ash/ime/ime_mode_indicator_view.h"
#include "ash/ime/ime_switch_type.h"
#include "ash/ime/mode_indicator_observer.h"
#include "ash/shell.h"
#include "ash/system/tray/system_tray_notifier.h"
#include "base/bind_helpers.h"
#include "base/metrics/histogram_macros.h"
#include "ui/base/accelerators/accelerator.h"
#include "ui/base/ime/chromeos/extension_ime_util.h"
#include "ui/display/manager/display_manager.h"
namespace ash {
namespace {
// The result of pressing VKEY_MODECHANGE (for metrics).
// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
enum class ModeChangeKeyAction {
kShowIndicator = 0,
kSwitchIme = 1,
kMaxValue = kSwitchIme
};
} // namespace
ImeControllerImpl::ImeControllerImpl()
: mode_indicator_observer_(std::make_unique<ModeIndicatorObserver>()) {}
ImeControllerImpl::~ImeControllerImpl() {
SetClient(nullptr);
}
void ImeControllerImpl::AddObserver(Observer* observer) {
observers_.AddObserver(observer);
}
void ImeControllerImpl::RemoveObserver(Observer* observer) {
observers_.RemoveObserver(observer);
}
void ImeControllerImpl::SetClient(ImeControllerClient* client) {
if (client_) {
if (CastConfigController::Get())
CastConfigController::Get()->RemoveObserver(this);
Shell::Get()->display_manager()->RemoveObserver(this);
}
client_ = client;
if (client_) {
if (CastConfigController::Get())
CastConfigController::Get()->AddObserver(this);
Shell::Get()->display_manager()->AddObserver(this);
}
}
bool ImeControllerImpl::CanSwitchIme() const {
// Cannot switch unless there is an active IME.
if (current_ime_.id.empty())
return false;
// Do not consume key event if there is only one input method is enabled.
// Ctrl+Space or Alt+Shift may be used by other application.
return available_imes_.size() > 1;
}
void ImeControllerImpl::SwitchToNextIme() {
if (client_)
client_->SwitchToNextIme();
}
void ImeControllerImpl::SwitchToLastUsedIme() {
if (client_)
client_->SwitchToLastUsedIme();
}
void ImeControllerImpl::SwitchImeById(const std::string& ime_id,
bool show_message) {
if (client_)
client_->SwitchImeById(ime_id, show_message);
}
void ImeControllerImpl::ActivateImeMenuItem(const std::string& key) {
if (client_)
client_->ActivateImeMenuItem(key);
}
bool ImeControllerImpl::CanSwitchImeWithAccelerator(
const ui::Accelerator& accelerator) const {
// If none of the input methods associated with |accelerator| are active, we
// should ignore the accelerator.
std::vector<std::string> candidate_ids =
GetCandidateImesForAccelerator(accelerator);
return !candidate_ids.empty();
}
void ImeControllerImpl::SwitchImeWithAccelerator(
const ui::Accelerator& accelerator) {
if (!client_)
return;
std::vector<std::string> candidate_ids =
GetCandidateImesForAccelerator(accelerator);
if (candidate_ids.empty())
return;
auto it =
std::find(candidate_ids.begin(), candidate_ids.end(), current_ime_.id);
if (it != candidate_ids.end())
++it;
if (it == candidate_ids.end())
it = candidate_ids.begin();
client_->SwitchImeById(*it, true /* show_message */);
}
// ImeControllerImpl:
void ImeControllerImpl::RefreshIme(const std::string& current_ime_id,
std::vector<ImeInfo> available_imes,
std::vector<ImeMenuItem> menu_items) {
if (current_ime_id.empty())
current_ime_ = ImeInfo();
available_imes_.clear();
available_imes_.reserve(available_imes.size());
for (const auto& ime : available_imes) {
if (ime.id.empty()) {
DLOG(ERROR) << "Received IME with invalid ID.";
continue;
}
available_imes_.push_back(ime);
if (ime.id == current_ime_id)
current_ime_ = ime;
}
// Either there is no current IME or we found a valid one in the list of
// available IMEs.
DCHECK(current_ime_id.empty() || !current_ime_.id.empty());
current_ime_menu_items_.clear();
current_ime_menu_items_.reserve(menu_items.size());
for (const auto& item : menu_items)
current_ime_menu_items_.push_back(item);
Shell::Get()->system_tray_notifier()->NotifyRefreshIME();
}
void ImeControllerImpl::SetImesManagedByPolicy(bool managed) {
managed_by_policy_ = managed;
Shell::Get()->system_tray_notifier()->NotifyRefreshIME();
}
void ImeControllerImpl::ShowImeMenuOnShelf(bool show) {
is_menu_active_ = show;
Shell::Get()->system_tray_notifier()->NotifyRefreshIMEMenu(show);
}
void ImeControllerImpl::UpdateCapsLockState(bool caps_enabled) {
is_caps_lock_enabled_ = caps_enabled;
for (ImeControllerImpl::Observer& observer : observers_)
observer.OnCapsLockChanged(caps_enabled);
}
void ImeControllerImpl::OnKeyboardLayoutNameChanged(
const std::string& layout_name) {
keyboard_layout_name_ = layout_name;
for (ImeControllerImpl::Observer& observer : observers_)
observer.OnKeyboardLayoutNameChanged(layout_name);
}
void ImeControllerImpl::SetExtraInputOptionsEnabledState(
bool is_extra_input_options_enabled,
bool is_emoji_enabled,
bool is_handwriting_enabled,
bool is_voice_enabled) {
is_extra_input_options_enabled_ = is_extra_input_options_enabled;
is_emoji_enabled_ = is_emoji_enabled;
is_handwriting_enabled_ = is_handwriting_enabled;
is_voice_enabled_ = is_voice_enabled;
}
void ImeControllerImpl::ShowModeIndicator(
const gfx::Rect& anchor_bounds,
const base::string16& ime_short_name) {
ImeModeIndicatorView* mi_view =
new ImeModeIndicatorView(anchor_bounds, ime_short_name);
views::BubbleDialogDelegateView::CreateBubble(mi_view);
mode_indicator_observer_->AddModeIndicatorWidget(mi_view->GetWidget());
mi_view->ShowAndFadeOut();
}
void ImeControllerImpl::OnDisplayMetricsChanged(const display::Display& display,
uint32_t changed_metrics) {
if (changed_metrics & display::DisplayObserver::DISPLAY_METRIC_MIRROR_STATE) {
Shell* shell = Shell::Get();
client_->UpdateMirroringState(shell->display_manager()->IsInMirrorMode());
}
}
void ImeControllerImpl::OnDevicesUpdated(
const std::vector<SinkAndRoute>& devices) {
DCHECK(client_);
bool casting_desktop = false;
for (const auto& receiver : devices) {
if (receiver.route.content_source == ContentSource::kDesktop) {
casting_desktop = true;
break;
}
}
client_->UpdateCastingState(casting_desktop);
}
void ImeControllerImpl::SetCapsLockEnabled(bool caps_enabled) {
is_caps_lock_enabled_ = caps_enabled;
if (client_)
client_->SetCapsLockEnabled(caps_enabled);
}
void ImeControllerImpl::OverrideKeyboardKeyset(
chromeos::input_method::ImeKeyset keyset) {
OverrideKeyboardKeyset(keyset, base::DoNothing());
}
void ImeControllerImpl::OverrideKeyboardKeyset(
chromeos::input_method::ImeKeyset keyset,
ImeControllerClient::OverrideKeyboardKeysetCallback callback) {
if (client_)
client_->OverrideKeyboardKeyset(keyset, std::move(callback));
}
bool ImeControllerImpl::IsCapsLockEnabled() const {
return is_caps_lock_enabled_;
}
std::vector<std::string> ImeControllerImpl::GetCandidateImesForAccelerator(
const ui::Accelerator& accelerator) const {
std::vector<std::string> candidate_ids;
using chromeos::extension_ime_util::GetInputMethodIDByEngineID;
std::vector<std::string> input_method_ids_to_switch;
switch (accelerator.key_code()) {
case ui::VKEY_CONVERT: // Henkan key on JP106 keyboard
input_method_ids_to_switch.push_back(
GetInputMethodIDByEngineID("nacl_mozc_jp"));
break;
case ui::VKEY_NONCONVERT: // Muhenkan key on JP106 keyboard
input_method_ids_to_switch.push_back(
GetInputMethodIDByEngineID("xkb:jp::jpn"));
break;
case ui::VKEY_DBE_SBCSCHAR: // ZenkakuHankaku key on JP106 keyboard
case ui::VKEY_DBE_DBCSCHAR:
input_method_ids_to_switch.push_back(
GetInputMethodIDByEngineID("nacl_mozc_jp"));
input_method_ids_to_switch.push_back(
GetInputMethodIDByEngineID("xkb:jp::jpn"));
break;
default:
break;
}
if (input_method_ids_to_switch.empty()) {
DVLOG(1) << "Unexpected VKEY: " << accelerator.key_code();
return std::vector<std::string>();
}
// Obtain the intersection of input_method_ids_to_switch and available_imes_.
for (const ImeInfo& ime : available_imes_) {
if (base::Contains(input_method_ids_to_switch, ime.id))
candidate_ids.push_back(ime.id);
}
return candidate_ids;
}
} // namespace ash