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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #include "chrome/browser/ui/views/aura/caps_lock_handler.h" | |
6 | |
7 #include "content/public/browser/browser_thread.h" | |
8 | |
9 // TODO(yusukes): Support Ash on Windows. | |
10 #if defined(OS_CHROMEOS) | |
11 #include "chrome/browser/browser_process.h" | |
12 #include "chrome/browser/chromeos/input_method/xkeyboard.h" | |
13 #include "chrome/browser/chromeos/system/runtime_environment.h" | |
14 #include "chrome/browser/prefs/pref_service.h" | |
15 #include "chrome/common/pref_names.h" | |
16 #endif | |
17 | |
18 #if defined(OS_CHROMEOS) | |
19 CapsLockHandler::CapsLockHandler(chromeos::input_method::XKeyboard* xkeyboard) | |
20 : xkeyboard_(xkeyboard), | |
21 is_running_on_chromeos_( | |
22 chromeos::system::runtime_environment::IsRunningOnChromeOS()), | |
23 caps_lock_is_on_(xkeyboard_->CapsLockIsEnabled()) { | |
24 chromeos::SystemKeyEventListener* system_event_listener = | |
25 chromeos::SystemKeyEventListener::GetInstance(); | |
26 // SystemKeyEventListener should be instantiated when we're running on Chrome | |
27 // OS. | |
28 DCHECK(!is_running_on_chromeos_ || system_event_listener); | |
29 if (system_event_listener) | |
30 system_event_listener->AddCapsLockObserver(this); | |
31 } | |
32 #endif | |
33 | |
34 CapsLockHandler::~CapsLockHandler() { | |
35 #if defined(OS_CHROMEOS) | |
36 chromeos::SystemKeyEventListener* system_event_listener = | |
37 chromeos::SystemKeyEventListener::GetInstance(); | |
38 if (system_event_listener) | |
39 system_event_listener->RemoveCapsLockObserver(this); | |
40 #endif | |
41 } | |
42 | |
43 bool CapsLockHandler::HandleToggleCapsLock() { | |
44 #if defined(OS_CHROMEOS) | |
45 DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)); | |
46 if (is_running_on_chromeos_ && | |
47 // When spoken feedback is enabled, the Search key is used as an | |
48 // accessibility modifier key. | |
49 !g_browser_process->local_state()->GetBoolean( | |
50 prefs::kSpokenFeedbackEnabled)) { | |
51 xkeyboard_->SetCapsLockEnabled(!caps_lock_is_on_); | |
52 return true; // consume the shortcut key. | |
53 } | |
54 #else | |
55 NOTIMPLEMENTED(); | |
56 #endif | |
57 return false; | |
58 } | |
59 | |
60 #if defined(OS_CHROMEOS) | |
61 void CapsLockHandler::OnCapsLockChange(bool enabled) { | |
62 caps_lock_is_on_ = enabled; | |
63 } | |
64 #endif | |
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