| // Copyright 2014 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/events/ozone/layout/keyboard_layout_engine_manager.h" |
| |
| #include "base/logging.h" |
| #include "ui/events/ozone/layout/stub/stub_keyboard_layout_engine.h" |
| |
| namespace ui { |
| |
| // static |
| KeyboardLayoutEngineManager* KeyboardLayoutEngineManager::instance_ = nullptr; |
| |
| KeyboardLayoutEngineManager::KeyboardLayoutEngineManager( |
| KeyboardLayoutEngine* engine) |
| : keyboard_layout_engine_(engine) { |
| CHECK(!instance_) << "Only one keyboard layout manager can be created."; |
| instance_ = this; |
| } |
| |
| KeyboardLayoutEngineManager::~KeyboardLayoutEngineManager() { |
| CHECK_EQ(this, instance_); |
| instance_ = NULL; |
| } |
| |
| void KeyboardLayoutEngineManager::SetKeyboardLayoutEngine( |
| std::unique_ptr<KeyboardLayoutEngine> engine) { |
| if (instance_) |
| instance_->keyboard_layout_engine_ = std::move(engine); |
| else |
| new KeyboardLayoutEngineManager(engine.release()); |
| } |
| |
| KeyboardLayoutEngine* KeyboardLayoutEngineManager::GetKeyboardLayoutEngine() { |
| // TODO(kpschoedel): crbug.com/430194 This lazy initialization is a |
| // workaround for not yet initializing KeyboardLayoutEngineManager |
| // expliclity in all tests that need it. |
| if (!instance_) |
| new KeyboardLayoutEngineManager(new StubKeyboardLayoutEngine()); |
| return instance_->keyboard_layout_engine_.get(); |
| } |
| |
| } // namespace ui |