Removes code using mus client lib

ui/views/mus/input_method_mus.cc

-// Copyright (c) 2015 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/views/mus/input_method_mus.h"
-
-#include <utility>
-
-#include "base/memory/ptr_util.h"
-#include "services/ui/public/cpp/window.h"
-#include "services/ui/public/interfaces/constants.mojom.h"
-#include "services/ui/public/interfaces/ime/ime.mojom.h"
-#include "ui/base/ime/text_input_client.h"
-#include "ui/events/event.h"
-#include "ui/platform_window/mojo/ime_type_converters.h"
-#include "ui/platform_window/mojo/text_input_state.mojom.h"
-#include "ui/views/mus/text_input_client_impl.h"
-
-using ui::mojom::EventResult;
-
-namespace views {
-
-////////////////////////////////////////////////////////////////////////////////
-// InputMethodMus, public:
-
-InputMethodMus::InputMethodMus(ui::internal::InputMethodDelegate* delegate,
-                               ui::Window* window)
-    : window_(window) {
-  SetDelegate(delegate);
-}
-
-InputMethodMus::~InputMethodMus() {}
-
-void InputMethodMus::Init(service_manager::Connector* connector) {
-  connector->ConnectToInterface(ui::mojom::kServiceName, &ime_server_);
-}
-
-void InputMethodMus::DispatchKeyEvent(
-    ui::KeyEvent* event,
-    std::unique_ptr<base::Callback<void(EventResult)>> ack_callback) {
-  DCHECK(event->type() == ui::ET_KEY_PRESSED ||
-         event->type() == ui::ET_KEY_RELEASED);
-
-  // If no text input client, do nothing.
-  if (!GetTextInputClient()) {
-    ignore_result(DispatchKeyEventPostIME(event));
-    if (ack_callback) {
-      ack_callback->Run(event->handled() ? EventResult::HANDLED
-                                         : EventResult::UNHANDLED);
-    }
-    return;
-  }
-
-  // IME driver will notify us whether it handled the event or not by calling
-  // ProcessKeyEventCallback(), in which we will run the |ack_callback| to tell
-  // the window server if client handled the event or not.
-  input_method_->ProcessKeyEvent(
-      ui::Event::Clone(*event),
-      base::Bind(&InputMethodMus::ProcessKeyEventCallback,
-                 base::Unretained(this), *event, Passed(&ack_callback)));
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// InputMethodMus, ui::InputMethod implementation:
-
-void InputMethodMus::OnFocus() {
-  InputMethodBase::OnFocus();
-  UpdateTextInputType();
-}
-
-void InputMethodMus::OnBlur() {
-  InputMethodBase::OnBlur();
-  UpdateTextInputType();
-}
-
-bool InputMethodMus::OnUntranslatedIMEMessage(const base::NativeEvent& event,
-                                              NativeEventResult* result) {
-  // This method is not called on non-Windows platforms. See the comments for
-  // ui::InputMethod::OnUntranslatedIMEMessage().
-  return false;
-}
-
-void InputMethodMus::DispatchKeyEvent(ui::KeyEvent* event) {
-  DispatchKeyEvent(event, nullptr);
-}
-
-void InputMethodMus::OnTextInputTypeChanged(const ui::TextInputClient* client) {
-  if (IsTextInputClientFocused(client))
-    UpdateTextInputType();
-  InputMethodBase::OnTextInputTypeChanged(client);
-
-  if (input_method_) {
-    input_method_->OnTextInputTypeChanged(
-        static_cast<ui::mojom::TextInputType>(client->GetTextInputType()));
-  }
-}
-
-void InputMethodMus::OnCaretBoundsChanged(const ui::TextInputClient* client) {
-  if (input_method_)
-    input_method_->OnCaretBoundsChanged(client->GetCaretBounds());
-}
-
-void InputMethodMus::CancelComposition(const ui::TextInputClient* client) {
-  if (input_method_)
-    input_method_->CancelComposition();
-}
-
-void InputMethodMus::OnInputLocaleChanged() {
-  // TODO(moshayedi): crbug.com/637418. Not supported in ChromeOS. Investigate
-  // whether we want to support this or not.
-}
-
-bool InputMethodMus::IsCandidatePopupOpen() const {
-  // TODO(moshayedi): crbug.com/637416. Implement this properly when we have a
-  // mean for displaying candidate list popup.
-  return false;
-}
-
-void InputMethodMus::OnDidChangeFocusedClient(
-    ui::TextInputClient* focused_before,
-    ui::TextInputClient* focused) {
-  InputMethodBase::OnDidChangeFocusedClient(focused_before, focused);
-  UpdateTextInputType();
-
-  text_input_client_ = base::MakeUnique<TextInputClientImpl>(focused);
-  ime_server_->StartSession(text_input_client_->CreateInterfacePtrAndBind(),
-                            MakeRequest(&input_method_));
-}
-
-void InputMethodMus::UpdateTextInputType() {
-  ui::TextInputType type = GetTextInputType();
-  mojo::TextInputStatePtr state = mojo::TextInputState::New();
-  state->type = mojo::ConvertTo<mojo::TextInputType>(type);
-  if (window_) {
-    if (type != ui::TEXT_INPUT_TYPE_NONE)
-      window_->SetImeVisibility(true, std::move(state));
-    else
-      window_->SetTextInputState(std::move(state));
-  }
-}
-
-void InputMethodMus::ProcessKeyEventCallback(
-    const ui::KeyEvent& event,
-    std::unique_ptr<base::Callback<void(EventResult)>> ack_callback,
-    bool handled) {
-  EventResult event_result;
-  if (!handled) {
-    // If not handled by IME, try dispatching the event to delegate to see if
-    // any client-side post-ime processing needs to be done. This includes cases
-    // like backspace, return key, etc.
-    std::unique_ptr<ui::Event> event_clone = ui::Event::Clone(event);
-    ignore_result(DispatchKeyEventPostIME(event_clone->AsKeyEvent()));
-    event_result =
-        event_clone->handled() ? EventResult::HANDLED : EventResult::UNHANDLED;
-  } else {
-    event_result = EventResult::HANDLED;
-  }
-  // |ack_callback| can be null if the standard form of DispatchKeyEvent() is
-  // called instead of the version which provides a callback. In mus+ash we
-  // use the version with callback, but some unittests use the standard form.
-  if (ack_callback)
-    ack_callback->Run(event_result);
-}
-
-}  // namespace views