| // Copyright 2010-2015, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef MOZC_WIN32_IME_IME_SCOPED_CONTEXT_H_ |
| #define MOZC_WIN32_IME_IME_SCOPED_CONTEXT_H_ |
| |
| #include <Windows.h> |
| |
| #include "base/port.h" |
| #include "win32/base/immdev.h" |
| |
| namespace mozc { |
| namespace win32 { |
| |
| template <class T> |
| class ScopedHIMC { |
| public: |
| explicit ScopedHIMC(HIMC himc) : himc_(nullptr), pointer_(nullptr) { |
| pointer_ = static_cast<T*>(::ImmLockIMC(himc)); |
| if (pointer_ == nullptr) { |
| return; |
| } |
| himc_ = himc; |
| } |
| |
| ~ScopedHIMC() { |
| if (himc_ != nullptr) { |
| ::ImmUnlockIMC(himc_); |
| himc_ = nullptr; |
| } |
| pointer_ = nullptr; |
| } |
| |
| const T *get() const { |
| return pointer_; |
| } |
| |
| T *get() { |
| return pointer_; |
| } |
| |
| const T *operator->() const { |
| return pointer_; |
| } |
| |
| T *operator->() { |
| return pointer_; |
| } |
| |
| private: |
| HIMC himc_; |
| T *pointer_; |
| DISALLOW_COPY_AND_ASSIGN(ScopedHIMC); |
| }; |
| |
| template <class T> |
| class ScopedHIMCC { |
| public: |
| explicit ScopedHIMCC(HIMCC himcc) : himcc_(himcc), pointer_(nullptr) { |
| pointer_ = static_cast<T*>(::ImmLockIMCC(himcc_)); |
| if (pointer_ == nullptr) { |
| himcc_ = nullptr; |
| } |
| } |
| |
| ~ScopedHIMCC() { |
| if (himcc_ != nullptr) { |
| ::ImmUnlockIMCC(himcc_); |
| } |
| pointer_ = nullptr; |
| } |
| |
| const T *get() const { |
| return pointer_; |
| } |
| |
| T *get() { |
| return pointer_; |
| } |
| |
| const T *operator->() const { |
| return pointer_; |
| } |
| |
| T *operator->() { |
| return pointer_; |
| } |
| |
| private: |
| T *pointer_; |
| HIMCC himcc_; |
| DISALLOW_COPY_AND_ASSIGN(ScopedHIMCC); |
| }; |
| |
| } // namespace mozc |
| } // namespace win32 |
| |
| #endif // MOZC_WIN32_IME_IME_SCOPED_CONTEXT_H_ |