browser: Move some ash files into ui/ash.

chrome/browser/ui/ash/caps_lock_handler.cc

+// 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/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