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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "ui/events/ozone/layout/keyboard_layout_engine_manager.h" |
| 6 |
| 7 #include "base/logging.h" |
| 8 #include "ui/events/ozone/layout/stub/stub_keyboard_layout_engine.h" |
| 9 |
| 10 namespace ui { |
| 11 |
| 12 // static |
| 13 KeyboardLayoutEngineManager* KeyboardLayoutEngineManager::instance_ = nullptr; |
| 14 |
| 15 KeyboardLayoutEngineManager::KeyboardLayoutEngineManager( |
| 16 KeyboardLayoutEngine* engine) |
| 17 : keyboard_layout_engine_(engine) { |
| 18 CHECK(!instance_) << "Only one keyboard layout manager can be created."; |
| 19 instance_ = this; |
| 20 } |
| 21 |
| 22 KeyboardLayoutEngineManager::~KeyboardLayoutEngineManager() { |
| 23 CHECK_EQ(this, instance_); |
| 24 instance_ = NULL; |
| 25 } |
| 26 |
| 27 void KeyboardLayoutEngineManager::SetKeyboardLayoutEngine( |
| 28 scoped_ptr<KeyboardLayoutEngine> engine) { |
| 29 new KeyboardLayoutEngineManager(engine.release()); |
| 30 } |
| 31 |
| 32 KeyboardLayoutEngine* KeyboardLayoutEngineManager::GetKeyboardLayoutEngine() { |
| 33 // TODO(kpschoedel): crbug.com/430194 This lazy initialization is a |
| 34 // workaround for not yet initializing KeyboardLayoutEngineManager |
| 35 // expliclity in all tests that need it. |
| 36 if (!instance_) |
| 37 new KeyboardLayoutEngineManager(new StubKeyboardLayoutEngine()); |
| 38 return instance_->keyboard_layout_engine_.get(); |
| 39 } |
| 40 |
| 41 } // namespace ui |
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