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
|
// 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.
// TODO(nona): Remvoe IBusUiController
#include "chrome/browser/chromeos/input_method/ibus_ui_controller.h"
#include <sstream>
#include "ash/shell.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/string_util.h"
#include "chrome/browser/chromeos/input_method/input_method_configuration.h"
#include "chrome/browser/chromeos/input_method/input_method_descriptor.h"
#include "chrome/browser/chromeos/input_method/input_method_manager.h"
#include "chrome/browser/chromeos/input_method/input_method_util.h"
#include "chromeos/dbus/dbus_thread_manager.h"
#include "chromeos/dbus/ibus/ibus_lookup_table.h"
#include "ui/aura/client/aura_constants.h"
#include "ui/aura/root_window.h"
#include "ui/base/ime/input_method_ibus.h"
namespace chromeos {
namespace input_method {
namespace {
// Returns pointer of IBusPanelService. This function returns NULL if it is not
// ready.
ibus::IBusPanelService* GetIBusPanelService() {
return DBusThreadManager::Get()->GetIBusPanelService();
}
// Returns a ui::InputMethodIBus object which is associated with the root
// window. Returns NULL if the Ash shell has already been destructed.
static ui::InputMethodIBus* GetChromeInputMethod() {
if (!ash::Shell::HasInstance())
return NULL;
aura::Window* root_window = ash::Shell::GetPrimaryRootWindow();
if (!root_window)
return NULL;
return static_cast<ui::InputMethodIBus*>(root_window->GetProperty(
aura::client::kRootWindowInputMethodKey));
}
} // namespace
// A class for customizing the behavior of ui::InputMethodIBus for Chrome OS.
class IBusChromeOSClientImpl : public ui::internal::IBusClient {
public:
explicit IBusChromeOSClientImpl(IBusUiController* ui) : ui_(ui) {}
// ui::IBusClient override.
virtual InputMethodType GetInputMethodType() OVERRIDE {
InputMethodManager* manager = GetInputMethodManager();
DCHECK(manager);
return InputMethodUtil::IsKeyboardLayout(
manager->GetCurrentInputMethod().id()) ?
INPUT_METHOD_XKB_LAYOUT : INPUT_METHOD_NORMAL;
}
virtual void SetCursorLocation(const gfx::Rect& cursor_location,
const gfx::Rect& composition_head) OVERRIDE {
if (!ui_)
return;
// We don't have to call ibus_input_context_set_cursor_location() on
// Chrome OS because the candidate window for IBus is integrated with
// Chrome.
ui_->SetCursorLocation(cursor_location, composition_head);
}
void set_ui(IBusUiController* ui) {
ui_ = ui;
}
private:
IBusUiController* ui_;
DISALLOW_COPY_AND_ASSIGN(IBusChromeOSClientImpl);
};
InputMethodLookupTable::InputMethodLookupTable()
: visible(false),
cursor_absolute_index(0),
page_size(0),
orientation(kHorizontal) {
}
InputMethodLookupTable::~InputMethodLookupTable() {
}
std::string InputMethodLookupTable::ToString() const {
std::stringstream stream;
stream << "visible: " << visible << "\n";
stream << "cursor_absolute_index: " << cursor_absolute_index << "\n";
stream << "page_size: " << page_size << "\n";
stream << "orientation: " << orientation << "\n";
stream << "candidates:";
for (size_t i = 0; i < candidates.size(); ++i) {
stream << " [" << candidates[i] << "]";
}
stream << "\nlabels:";
for (size_t i = 0; i < labels.size(); ++i) {
stream << " [" << labels[i] << "]";
}
return stream.str();
}
// The real implementation of the IBusUiController.
IBusUiController::IBusUiController() {
ui::InputMethodIBus* input_method = GetChromeInputMethod();
DCHECK(input_method);
input_method->set_ibus_client(scoped_ptr<ui::internal::IBusClient>(
new IBusChromeOSClientImpl(this)).Pass());
}
IBusUiController::~IBusUiController() {
ui::InputMethodIBus* input_method = GetChromeInputMethod();
if (input_method) {
ui::internal::IBusClient* client = input_method->ibus_client();
// We assume that no objects other than |this| set an IBus client.
DCHECK(client);
static_cast<IBusChromeOSClientImpl*>(client)->set_ui(NULL);
}
}
void IBusUiController::NotifyCandidateClicked(int index, int button,
int flags) {
ibus::IBusPanelService* service = GetIBusPanelService();
if (service) {
service->CandidateClicked(
index,
static_cast<ibus::IBusMouseButton>(button),
flags);
}
}
void IBusUiController::NotifyCursorUp() {
ibus::IBusPanelService* service = GetIBusPanelService();
if (service)
service->CursorUp();
}
void IBusUiController::NotifyCursorDown() {
ibus::IBusPanelService* service = GetIBusPanelService();
if (service)
service->CursorDown();
}
void IBusUiController::NotifyPageUp() {
ibus::IBusPanelService* service = GetIBusPanelService();
if (service)
service->PageUp();
}
void IBusUiController::NotifyPageDown() {
ibus::IBusPanelService* service = GetIBusPanelService();
if (service)
service->PageDown();
}
void IBusUiController::AddObserver(Observer* observer) {
observers_.AddObserver(observer);
}
void IBusUiController::RemoveObserver(Observer* observer) {
observers_.RemoveObserver(observer);
}
void IBusUiController::HideAuxiliaryText() {
FOR_EACH_OBSERVER(Observer, observers_, OnHideAuxiliaryText());
}
void IBusUiController::HideLookupTable() {
FOR_EACH_OBSERVER(Observer, observers_, OnHideLookupTable());
}
void IBusUiController::UpdateAuxiliaryText(const std::string& text,
bool visible) {
FOR_EACH_OBSERVER(Observer, observers_,
OnUpdateAuxiliaryText(text, visible));
}
void IBusUiController::SetCursorLocation(const gfx::Rect& cursor_location,
const gfx::Rect& composition_head) {
FOR_EACH_OBSERVER(Observer, observers_,
OnSetCursorLocation(cursor_location, composition_head));
}
void IBusUiController::UpdatePreeditText(const std::string& text,
uint32 cursor_pos,
bool visible) {
FOR_EACH_OBSERVER(Observer, observers_,
OnUpdatePreeditText(text, cursor_pos, visible));
}
void IBusUiController::HidePreeditText() {
FOR_EACH_OBSERVER(Observer, observers_, OnHidePreeditText());
}
void IBusUiController::UpdateLookupTable(const ibus::IBusLookupTable& table,
bool visible) {
// TODO(nona): Use ibus::IBusLookupTable instead.
InputMethodLookupTable lookup_table;
lookup_table.visible = visible;
// Copy the orientation information.
if (table.orientation() ==
ibus::IBusLookupTable::IBUS_LOOKUP_TABLE_ORIENTATION_VERTICAL) {
lookup_table.orientation = InputMethodLookupTable::kVertical;
} else {
lookup_table.orientation = InputMethodLookupTable::kHorizontal;
}
lookup_table.show_at_composition_head = table.show_window_at_composition();
// Copy candidates and annotations to |lookup_table|.
for (size_t i = 0; i < table.candidates().size(); ++i) {
const ibus::IBusLookupTable::Entry& entry = table.candidates()[i];
lookup_table.candidates.push_back(entry.value);
lookup_table.labels.push_back(entry.label);
lookup_table.annotations.push_back(entry.annotation);
InputMethodLookupTable::Description description;
description.title = entry.description_title;
description.body = entry.description_body;
lookup_table.descriptions.push_back(description);
}
lookup_table.cursor_absolute_index = table.cursor_position();
lookup_table.page_size = table.page_size();
// Ensure that the page_size is non-zero to avoid div-by-zero error.
if (lookup_table.page_size <= 0) {
DVLOG(1) << "Invalid page size: " << lookup_table.page_size;
lookup_table.page_size = 1;
}
FOR_EACH_OBSERVER(Observer, observers_,
OnUpdateLookupTable(lookup_table));
}
} // namespace input_method
} // namespace chromeos
|
