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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/browser/chromeos/accessibility/magnification_manager.h" | 5 #include "chrome/browser/chromeos/accessibility/magnification_manager.h" |
6 | 6 |
7 #include <limits> | 7 #include <limits> |
8 #include <memory> | 8 #include <memory> |
9 | 9 |
| 10 #include "ash/common/accessibility_types.h" |
10 #include "ash/common/session/session_state_observer.h" | 11 #include "ash/common/session/session_state_observer.h" |
11 #include "ash/magnifier/magnification_controller.h" | 12 #include "ash/magnifier/magnification_controller.h" |
12 #include "ash/magnifier/partial_magnification_controller.h" | 13 #include "ash/magnifier/partial_magnification_controller.h" |
13 #include "ash/shell.h" | 14 #include "ash/shell.h" |
14 #include "ash/shell_delegate.h" | 15 #include "ash/shell_delegate.h" |
15 #include "ash/system/tray/system_tray_notifier.h" | 16 #include "ash/system/tray/system_tray_notifier.h" |
16 #include "base/macros.h" | 17 #include "base/macros.h" |
17 #include "base/memory/singleton.h" | 18 #include "base/memory/singleton.h" |
18 #include "chrome/browser/chrome_notification_types.h" | 19 #include "chrome/browser/chrome_notification_types.h" |
19 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h" | 20 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h" |
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42 public content::NotificationObserver, | 43 public content::NotificationObserver, |
43 public ash::SessionStateObserver { | 44 public ash::SessionStateObserver { |
44 public: | 45 public: |
45 MagnificationManagerImpl() | 46 MagnificationManagerImpl() |
46 : profile_(NULL), | 47 : profile_(NULL), |
47 magnifier_enabled_pref_handler_( | 48 magnifier_enabled_pref_handler_( |
48 prefs::kAccessibilityScreenMagnifierEnabled), | 49 prefs::kAccessibilityScreenMagnifierEnabled), |
49 magnifier_type_pref_handler_(prefs::kAccessibilityScreenMagnifierType), | 50 magnifier_type_pref_handler_(prefs::kAccessibilityScreenMagnifierType), |
50 magnifier_scale_pref_handler_( | 51 magnifier_scale_pref_handler_( |
51 prefs::kAccessibilityScreenMagnifierScale), | 52 prefs::kAccessibilityScreenMagnifierScale), |
52 type_(ui::kDefaultMagnifierType), | 53 type_(ash::kDefaultMagnifierType), |
53 enabled_(false), | 54 enabled_(false), |
54 keep_focus_centered_(false), | 55 keep_focus_centered_(false), |
55 observing_focus_change_in_page_(false) { | 56 observing_focus_change_in_page_(false) { |
56 registrar_.Add(this, | 57 registrar_.Add(this, |
57 chrome::NOTIFICATION_LOGIN_OR_LOCK_WEBUI_VISIBLE, | 58 chrome::NOTIFICATION_LOGIN_OR_LOCK_WEBUI_VISIBLE, |
58 content::NotificationService::AllSources()); | 59 content::NotificationService::AllSources()); |
59 registrar_.Add(this, | 60 registrar_.Add(this, |
60 chrome::NOTIFICATION_SESSION_STARTED, | 61 chrome::NOTIFICATION_SESSION_STARTED, |
61 content::NotificationService::AllSources()); | 62 content::NotificationService::AllSources()); |
62 registrar_.Add(this, | 63 registrar_.Add(this, |
63 chrome::NOTIFICATION_PROFILE_DESTROYED, | 64 chrome::NOTIFICATION_PROFILE_DESTROYED, |
64 content::NotificationService::AllSources()); | 65 content::NotificationService::AllSources()); |
65 } | 66 } |
66 | 67 |
67 ~MagnificationManagerImpl() override { | 68 ~MagnificationManagerImpl() override { |
68 CHECK(this == g_magnification_manager); | 69 CHECK(this == g_magnification_manager); |
69 } | 70 } |
70 | 71 |
71 // MagnificationManager implimentation: | 72 // MagnificationManager implimentation: |
72 bool IsMagnifierEnabled() const override { return enabled_; } | 73 bool IsMagnifierEnabled() const override { return enabled_; } |
73 | 74 |
74 ui::MagnifierType GetMagnifierType() const override { return type_; } | 75 ash::MagnifierType GetMagnifierType() const override { return type_; } |
75 | 76 |
76 void SetMagnifierEnabled(bool enabled) override { | 77 void SetMagnifierEnabled(bool enabled) override { |
77 if (!profile_) | 78 if (!profile_) |
78 return; | 79 return; |
79 | 80 |
80 PrefService* prefs = profile_->GetPrefs(); | 81 PrefService* prefs = profile_->GetPrefs(); |
81 prefs->SetBoolean(prefs::kAccessibilityScreenMagnifierEnabled, enabled); | 82 prefs->SetBoolean(prefs::kAccessibilityScreenMagnifierEnabled, enabled); |
82 prefs->CommitPendingWrite(); | 83 prefs->CommitPendingWrite(); |
83 } | 84 } |
84 | 85 |
85 void SetMagnifierType(ui::MagnifierType type) override { | 86 void SetMagnifierType(ash::MagnifierType type) override { |
86 if (!profile_) | 87 if (!profile_) |
87 return; | 88 return; |
88 | 89 |
89 PrefService* prefs = profile_->GetPrefs(); | 90 PrefService* prefs = profile_->GetPrefs(); |
90 prefs->SetInteger(prefs::kAccessibilityScreenMagnifierType, type); | 91 prefs->SetInteger(prefs::kAccessibilityScreenMagnifierType, type); |
91 prefs->CommitPendingWrite(); | 92 prefs->CommitPendingWrite(); |
92 } | 93 } |
93 | 94 |
94 void SaveScreenMagnifierScale(double scale) override { | 95 void SaveScreenMagnifierScale(double scale) override { |
95 if (!profile_) | 96 if (!profile_) |
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148 // This method may be invoked even when the other magnifier settings (e.g. | 149 // This method may be invoked even when the other magnifier settings (e.g. |
149 // type or scale) are changed, so we need to call magnification controller | 150 // type or scale) are changed, so we need to call magnification controller |
150 // even if |enabled| is unchanged. Only if |enabled| is false and the | 151 // even if |enabled| is unchanged. Only if |enabled| is false and the |
151 // magnifier is already disabled, we are sure that we don't need to reflect | 152 // magnifier is already disabled, we are sure that we don't need to reflect |
152 // the new settings right now because the magnifier keeps disabled. | 153 // the new settings right now because the magnifier keeps disabled. |
153 if (!enabled && !enabled_) | 154 if (!enabled && !enabled_) |
154 return; | 155 return; |
155 | 156 |
156 enabled_ = enabled; | 157 enabled_ = enabled; |
157 | 158 |
158 if (type_ == ui::MAGNIFIER_FULL) { | 159 if (type_ == ash::MAGNIFIER_FULL) { |
159 ash::Shell::GetInstance()->magnification_controller()->SetEnabled( | 160 ash::Shell::GetInstance()->magnification_controller()->SetEnabled( |
160 enabled_); | 161 enabled_); |
161 MonitorFocusInPageChange(); | 162 MonitorFocusInPageChange(); |
162 } else { | 163 } else { |
163 ash::Shell::GetInstance()->partial_magnification_controller()->SetEnabled( | 164 ash::Shell::GetInstance()->partial_magnification_controller()->SetEnabled( |
164 enabled_); | 165 enabled_); |
165 } | 166 } |
166 } | 167 } |
167 | 168 |
168 virtual void SetMagnifierTypeInternal(ui::MagnifierType type) { | 169 virtual void SetMagnifierTypeInternal(ash::MagnifierType type) { |
169 if (type_ == type) | 170 if (type_ == type) |
170 return; | 171 return; |
171 | 172 |
172 type_ = ui::MAGNIFIER_FULL; // (leave out for full magnifier) | 173 type_ = ash::MAGNIFIER_FULL; // (leave out for full magnifier) |
173 } | 174 } |
174 | 175 |
175 virtual void SetMagniferKeepFocusCenteredInternal(bool keep_focus_centered) { | 176 virtual void SetMagniferKeepFocusCenteredInternal(bool keep_focus_centered) { |
176 if (keep_focus_centered_ == keep_focus_centered) | 177 if (keep_focus_centered_ == keep_focus_centered) |
177 return; | 178 return; |
178 | 179 |
179 keep_focus_centered_ = keep_focus_centered; | 180 keep_focus_centered_ = keep_focus_centered; |
180 | 181 |
181 if (type_ == ui::MAGNIFIER_FULL) { | 182 if (type_ == ash::MAGNIFIER_FULL) { |
182 ash::Shell::GetInstance() | 183 ash::Shell::GetInstance() |
183 ->magnification_controller() | 184 ->magnification_controller() |
184 ->SetKeepFocusCentered(keep_focus_centered_); | 185 ->SetKeepFocusCentered(keep_focus_centered_); |
185 } | 186 } |
186 } | 187 } |
187 | 188 |
188 void UpdateMagnifierFromPrefs() { | 189 void UpdateMagnifierFromPrefs() { |
189 if (!profile_) | 190 if (!profile_) |
190 return; | 191 return; |
191 | 192 |
192 const bool enabled = profile_->GetPrefs()->GetBoolean( | 193 const bool enabled = profile_->GetPrefs()->GetBoolean( |
193 prefs::kAccessibilityScreenMagnifierEnabled); | 194 prefs::kAccessibilityScreenMagnifierEnabled); |
194 const int type_integer = profile_->GetPrefs()->GetInteger( | 195 const int type_integer = profile_->GetPrefs()->GetInteger( |
195 prefs::kAccessibilityScreenMagnifierType); | 196 prefs::kAccessibilityScreenMagnifierType); |
196 const bool keep_focus_centered = profile_->GetPrefs()->GetBoolean( | 197 const bool keep_focus_centered = profile_->GetPrefs()->GetBoolean( |
197 prefs::kAccessibilityScreenMagnifierCenterFocus); | 198 prefs::kAccessibilityScreenMagnifierCenterFocus); |
198 | 199 |
199 ui::MagnifierType type = ui::kDefaultMagnifierType; | 200 ash::MagnifierType type = ash::kDefaultMagnifierType; |
200 if (type_integer > 0 && type_integer <= ui::kMaxMagnifierType) { | 201 if (type_integer > 0 && type_integer <= ash::kMaxMagnifierType) { |
201 type = static_cast<ui::MagnifierType>(type_integer); | 202 type = static_cast<ash::MagnifierType>(type_integer); |
202 } else if (type_integer == 0) { | 203 } else if (type_integer == 0) { |
203 // Type 0 is used to disable the screen magnifier through policy. As the | 204 // Type 0 is used to disable the screen magnifier through policy. As the |
204 // magnifier type is irrelevant in this case, it is OK to just fall back | 205 // magnifier type is irrelevant in this case, it is OK to just fall back |
205 // to the default. | 206 // to the default. |
206 } else { | 207 } else { |
207 NOTREACHED(); | 208 NOTREACHED(); |
208 } | 209 } |
209 | 210 |
210 if (!enabled) { | 211 if (!enabled) { |
211 SetMagnifierEnabledInternal(enabled); | 212 SetMagnifierEnabledInternal(enabled); |
212 SetMagnifierTypeInternal(type); | 213 SetMagnifierTypeInternal(type); |
213 SetMagniferKeepFocusCenteredInternal(keep_focus_centered); | 214 SetMagniferKeepFocusCenteredInternal(keep_focus_centered); |
214 } else { | 215 } else { |
215 SetMagniferKeepFocusCenteredInternal(keep_focus_centered); | 216 SetMagniferKeepFocusCenteredInternal(keep_focus_centered); |
216 SetMagnifierTypeInternal(type); | 217 SetMagnifierTypeInternal(type); |
217 SetMagnifierEnabledInternal(enabled); | 218 SetMagnifierEnabledInternal(enabled); |
218 } | 219 } |
219 | 220 |
220 AccessibilityStatusEventDetails details( | 221 AccessibilityStatusEventDetails details( |
221 ACCESSIBILITY_TOGGLE_SCREEN_MAGNIFIER, | 222 ACCESSIBILITY_TOGGLE_SCREEN_MAGNIFIER, enabled_, type_, |
222 enabled_, | 223 ash::A11Y_NOTIFICATION_NONE); |
223 type_, | |
224 ui::A11Y_NOTIFICATION_NONE); | |
225 | 224 |
226 if (AccessibilityManager::Get()) { | 225 if (AccessibilityManager::Get()) { |
227 AccessibilityManager::Get()->NotifyAccessibilityStatusChanged(details); | 226 AccessibilityManager::Get()->NotifyAccessibilityStatusChanged(details); |
228 if (ash::Shell::GetInstance()) { | 227 if (ash::Shell::GetInstance()) { |
229 ash::Shell::GetInstance()->SetCursorCompositingEnabled( | 228 ash::Shell::GetInstance()->SetCursorCompositingEnabled( |
230 AccessibilityManager::Get()->ShouldEnableCursorCompositing()); | 229 AccessibilityManager::Get()->ShouldEnableCursorCompositing()); |
231 } | 230 } |
232 } | 231 } |
233 } | 232 } |
234 | 233 |
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283 } | 282 } |
284 } | 283 } |
285 } | 284 } |
286 | 285 |
287 Profile* profile_; | 286 Profile* profile_; |
288 | 287 |
289 AccessibilityManager::PrefHandler magnifier_enabled_pref_handler_; | 288 AccessibilityManager::PrefHandler magnifier_enabled_pref_handler_; |
290 AccessibilityManager::PrefHandler magnifier_type_pref_handler_; | 289 AccessibilityManager::PrefHandler magnifier_type_pref_handler_; |
291 AccessibilityManager::PrefHandler magnifier_scale_pref_handler_; | 290 AccessibilityManager::PrefHandler magnifier_scale_pref_handler_; |
292 | 291 |
293 ui::MagnifierType type_; | 292 ash::MagnifierType type_; |
294 bool enabled_; | 293 bool enabled_; |
295 bool keep_focus_centered_; | 294 bool keep_focus_centered_; |
296 bool observing_focus_change_in_page_; | 295 bool observing_focus_change_in_page_; |
297 | 296 |
298 content::NotificationRegistrar registrar_; | 297 content::NotificationRegistrar registrar_; |
299 std::unique_ptr<PrefChangeRegistrar> pref_change_registrar_; | 298 std::unique_ptr<PrefChangeRegistrar> pref_change_registrar_; |
300 std::unique_ptr<ash::ScopedSessionStateObserver> session_state_observer_; | 299 std::unique_ptr<ash::ScopedSessionStateObserver> session_state_observer_; |
301 | 300 |
302 DISALLOW_COPY_AND_ASSIGN(MagnificationManagerImpl); | 301 DISALLOW_COPY_AND_ASSIGN(MagnificationManagerImpl); |
303 }; | 302 }; |
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314 delete g_magnification_manager; | 313 delete g_magnification_manager; |
315 g_magnification_manager = NULL; | 314 g_magnification_manager = NULL; |
316 } | 315 } |
317 | 316 |
318 // static | 317 // static |
319 MagnificationManager* MagnificationManager::Get() { | 318 MagnificationManager* MagnificationManager::Get() { |
320 return g_magnification_manager; | 319 return g_magnification_manager; |
321 } | 320 } |
322 | 321 |
323 } // namespace chromeos | 322 } // namespace chromeos |
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