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// 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.
#include "chrome/browser/ui/views/ash/caps_lock_handler.h"
#include "base/logging.h"
#include "content/public/browser/browser_thread.h"
// TODO(yusukes): Support Ash on Windows.
#if defined(OS_CHROMEOS)
#include "base/chromeos/chromeos_version.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/chromeos/input_method/xkeyboard.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/common/pref_names.h"
#endif
#if defined(OS_CHROMEOS)
CapsLockHandler::CapsLockHandler(chromeos::input_method::XKeyboard* xkeyboard)
: xkeyboard_(xkeyboard),
is_running_on_chromeos_(base::chromeos::IsRunningOnChromeOS()),
caps_lock_is_on_(xkeyboard_->CapsLockIsEnabled()) {
chromeos::SystemKeyEventListener* system_event_listener =
chromeos::SystemKeyEventListener::GetInstance();
// SystemKeyEventListener should be instantiated when we're running on Chrome
// OS.
DCHECK(!is_running_on_chromeos_ || system_event_listener);
if (system_event_listener)
system_event_listener->AddCapsLockObserver(this);
}
#endif
CapsLockHandler::~CapsLockHandler() {
#if defined(OS_CHROMEOS)
chromeos::SystemKeyEventListener* system_event_listener =
chromeos::SystemKeyEventListener::GetInstance();
if (system_event_listener)
system_event_listener->RemoveCapsLockObserver(this);
#endif
}
bool CapsLockHandler::HandleToggleCapsLock() {
#if defined(OS_CHROMEOS)
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
if (is_running_on_chromeos_ &&
// When spoken feedback is enabled, the Search key is used as an
// accessibility modifier key.
!g_browser_process->local_state()->GetBoolean(
prefs::kSpokenFeedbackEnabled)) {
xkeyboard_->SetCapsLockEnabled(!caps_lock_is_on_);
return true; // consume the shortcut key.
}
#else
NOTIMPLEMENTED();
#endif
return false;
}
#if defined(OS_CHROMEOS)
void CapsLockHandler::OnCapsLockChange(bool enabled) {
caps_lock_is_on_ = enabled;
}
#endif
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