IME (input method editor) support for Aura, part 3 of 3: Use ui::InputMethod in ash.

ui/base/ime/input_method_base.cc

Index: ui/base/ime/input_method_base.cc
diff --git a/ui/base/ime/input_method_base.cc b/ui/base/ime/input_method_base.cc
new file mode 100644
index 0000000000000000000000000000000000000000..af5cad3e5b1821cd247b3d832137af47620a9afa
--- /dev/null
+++ b/ui/base/ime/input_method_base.cc
@@ -0,0 +1,105 @@
+// Copyright (c) 2011 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/logging.h"
+#include "ui/base/ime/input_method_delegate.h"
+#include "ui/base/ime/text_input_client.h"
+
+#if defined(USE_X11)
+#include <X11/Xlib.h>
+#include "base/message_pump_x.h"
+#endif
+
+namespace ui {
+
+InputMethodBase::InputMethodBase()
+  : delegate_(NULL),
+    text_input_client_(NULL),
+    system_toplevel_window_focused_(false) {
+}
+
+InputMethodBase::~InputMethodBase() {
+}
+
+void InputMethodBase::set_delegate(
+    internal::InputMethodDelegate* delegate) {
+  DCHECK(delegate);
+  delegate_ = delegate;
+}
+
+void InputMethodBase::Init(const base::NativeWindow& system_toplevel_window) {
+#if defined(USE_X11)
+  Window focus = None;
+  int revert_to = 0;
+  XGetInputFocus(base::MessagePumpX::GetDefaultXDisplay(), &focus, &revert_to);
+  if (focus == system_toplevel_window)
+    OnFocus();
+#else
+  // TODO(yusukes): Add OS_WIN implementation here.
+  NOTIMPLEMENTED();
+#endif
+}
+
+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) {
+  text_input_client_ = client;  // NULL allowed.
+}
+
+TextInputClient* InputMethodBase::GetTextInputClient() const {
+  return system_toplevel_window_focused_ ? text_input_client_ : NULL;
+}
+
+void InputMethodBase::OnTextInputTypeChanged(const TextInputClient* client) {
+  if (!IsTextInputClientFocused(client))
+    return;
+  // TODO(yusukes): Support TextInputTypeTracker for TOUCH_UI.
+}
+
+TextInputType InputMethodBase::GetTextInputType() const {
+  return text_input_client_ ?

[James Su, 2011/11/29 04:25:53]

use GetTextInputClient().

[Yusuke Sato, 2011/11/29 09:06:36]

Done.

+      text_input_client_->GetTextInputType() : TEXT_INPUT_TYPE_NONE;
+}
+
+bool InputMethodBase::IsTextInputClientFocused(const TextInputClient* client) {
+  return client && (client == GetTextInputClient());
+}
+
+bool InputMethodBase::IsTextInputTypeNone() const {
+  return GetTextInputType() == TEXT_INPUT_TYPE_NONE;
+}
+
+void InputMethodBase::OnInputMethodChanged() const {
+  if (text_input_client_ &&

[James Su, 2011/11/29 04:25:53]

use GetTextInputClient()

[Yusuke Sato, 2011/11/29 09:06:36]

Done.

+      text_input_client_->GetTextInputType() != TEXT_INPUT_TYPE_NONE)
+    text_input_client_->OnInputMethodChanged();

[James Su, 2011/11/29 04:25:53]

multi-line if statement needs {}

[Yusuke Sato, 2011/11/29 09:06:36]

Done.

+}
+
+void InputMethodBase::DispatchKeyEventPostIME(
+    const base::NativeEvent& native_event) const {
+  if (delegate_)
+    delegate_->DispatchKeyEventPostIME(native_event);
+}
+
+void InputMethodBase::DispatchFabricatedKeyEventPostIME(
+    EventType type, KeyboardCode key_code, int flags) const {
+  if (delegate_)
+    delegate_->DispatchFabricatedKeyEventPostIME(type, key_code, flags);
+}
+
+bool InputMethodBase::system_toplevel_window_focused() const {
+  return system_toplevel_window_focused_;
+}
+
+}  // namespace ui