It is time.

ui/base/ime/input_method_base.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 "ui/base/ime/input_method_base.h"
-
-#include "base/bind.h"
-#include "base/logging.h"
-#include "base/message_loop/message_loop.h"
-#include "ui/base/ime/input_method_delegate.h"
-#include "ui/base/ime/input_method_observer.h"
-#include "ui/base/ime/text_input_client.h"
-#include "ui/base/ime/text_input_focus_manager.h"
-#include "ui/base/ui_base_switches_util.h"
-#include "ui/events/event.h"
-
-namespace ui {
-
-InputMethodBase::InputMethodBase()
-  : delegate_(NULL),
-    text_input_client_(NULL),
-    system_toplevel_window_focused_(false) {
-}
-
-InputMethodBase::~InputMethodBase() {
-  FOR_EACH_OBSERVER(InputMethodObserver,
-                    observer_list_,
-                    OnInputMethodDestroyed(this));
-}
-
-void InputMethodBase::SetDelegate(internal::InputMethodDelegate* delegate) {
-  delegate_ = delegate;
-}
-
-void InputMethodBase::Init(bool focused) {
-  if (focused)
-    OnFocus();
-}
-
-void InputMethodBase::OnFocus() {
-  DCHECK(!system_toplevel_window_focused_);
-  system_toplevel_window_focused_ = true;
-}
-
-void InputMethodBase::OnBlur() {
-  DCHECK(system_toplevel_window_focused_);
-  system_toplevel_window_focused_ = false;
-}
-
-void InputMethodBase::SetFocusedTextInputClient(TextInputClient* client) {
-  SetFocusedTextInputClientInternal(client);
-}
-
-void InputMethodBase::DetachTextInputClient(TextInputClient* client) {
-  if (text_input_client_ != client)
-    return;
-  SetFocusedTextInputClientInternal(NULL);
-}
-
-TextInputClient* InputMethodBase::GetTextInputClient() const {
-  if (switches::IsTextInputFocusManagerEnabled())
-    return TextInputFocusManager::GetInstance()->GetFocusedTextInputClient();
-
-  return system_toplevel_window_focused_ ? text_input_client_ : NULL;
-}
-
-void InputMethodBase::OnTextInputTypeChanged(const TextInputClient* client) {
-  if (!IsTextInputClientFocused(client))
-    return;
-  NotifyTextInputStateChanged(client);
-}
-
-TextInputType InputMethodBase::GetTextInputType() const {
-  TextInputClient* client = GetTextInputClient();
-  return client ? client->GetTextInputType() : TEXT_INPUT_TYPE_NONE;
-}
-
-TextInputMode InputMethodBase::GetTextInputMode() const {
-  TextInputClient* client = GetTextInputClient();
-  return client ? client->GetTextInputMode() : TEXT_INPUT_MODE_DEFAULT;
-}
-
-bool InputMethodBase::CanComposeInline() const {
-  TextInputClient* client = GetTextInputClient();
-  return client ? client->CanComposeInline() : true;
-}
-
-void InputMethodBase::ShowImeIfNeeded() {
-  FOR_EACH_OBSERVER(InputMethodObserver, observer_list_, OnShowImeIfNeeded());
-}
-
-void InputMethodBase::AddObserver(InputMethodObserver* observer) {
-  observer_list_.AddObserver(observer);
-}
-
-void InputMethodBase::RemoveObserver(InputMethodObserver* observer) {
-  observer_list_.RemoveObserver(observer);
-}
-
-bool InputMethodBase::IsTextInputClientFocused(const TextInputClient* client) {
-  return client && (client == GetTextInputClient());
-}
-
-bool InputMethodBase::IsTextInputTypeNone() const {
-  return GetTextInputType() == TEXT_INPUT_TYPE_NONE;
-}
-
-void InputMethodBase::OnInputMethodChanged() const {
-  TextInputClient* client = GetTextInputClient();
-  if (!IsTextInputTypeNone())
-    client->OnInputMethodChanged();
-}
-
-bool InputMethodBase::DispatchKeyEventPostIME(
-    const ui::KeyEvent& event) const {
-  if (!delegate_)
-    return false;
-
-  return delegate_->DispatchKeyEventPostIME(event);
-}
-
-void InputMethodBase::NotifyTextInputStateChanged(
-    const TextInputClient* client) {
-  FOR_EACH_OBSERVER(InputMethodObserver,
-                    observer_list_,
-                    OnTextInputStateChanged(client));
-}
-
-void InputMethodBase::SetFocusedTextInputClientInternal(
-    TextInputClient* client) {
-  if (switches::IsTextInputFocusManagerEnabled())
-    return;
-
-  TextInputClient* old = text_input_client_;
-  if (old == client)
-    return;
-  OnWillChangeFocusedClient(old, client);
-  text_input_client_ = client;  // NULL allowed.
-  OnDidChangeFocusedClient(old, client);
-  NotifyTextInputStateChanged(text_input_client_);
-}
-
-void InputMethodBase::OnCandidateWindowShown() {
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&InputMethodBase::CandidateWindowShownCallback, AsWeakPtr()));
-}
-
-void InputMethodBase::OnCandidateWindowUpdated() {
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&InputMethodBase::CandidateWindowUpdatedCallback,
-                 AsWeakPtr()));
-}
-
-void InputMethodBase::OnCandidateWindowHidden() {
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&InputMethodBase::CandidateWindowHiddenCallback, AsWeakPtr()));
-}
-
-void InputMethodBase::CandidateWindowShownCallback() {
-  if (TextInputClient* text_input_client = GetTextInputClient())
-    text_input_client->OnCandidateWindowShown();
-}
-
-void InputMethodBase::CandidateWindowUpdatedCallback() {
-  if (TextInputClient* text_input_client = GetTextInputClient())
-    text_input_client->OnCandidateWindowUpdated();
-}
-
-void InputMethodBase::CandidateWindowHiddenCallback() {
-  if (TextInputClient* text_input_client = GetTextInputClient())
-    text_input_client->OnCandidateWindowHidden();
-}
-
-}  // namespace ui