| // 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 |
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| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef MOZC_UNIX_IBUS_KEY_EVENT_HANDLER_H_ |
| #define MOZC_UNIX_IBUS_KEY_EVENT_HANDLER_H_ |
| |
| #include <memory> |
| #include <set> |
| |
| #include "base/port.h" |
| #include "config/config.pb.h" |
| #include "session/commands.pb.h" |
| #include "unix/ibus/key_translator.h" |
| |
| namespace mozc { |
| namespace ibus { |
| |
| class KeyEventHandler { |
| public: |
| KeyEventHandler(); |
| |
| // Converts a key event came from ibus to commands::KeyEvent. This is a |
| // stateful method. It stores modifier keys states since ibus doesn't send |
| // an enough information about the modifier keys. |
| bool GetKeyEvent(guint keyval, guint keycode, guint modifiers, |
| config::Config::PreeditMethod preedit_method, |
| bool layout_is_jp, commands::KeyEvent *key); |
| |
| // Clears states. |
| void Clear(); |
| |
| private: |
| friend class KeyEventHandlerTest; |
| |
| // Manages modifier keys. Returns false if it should not be sent to server. |
| bool ProcessModifiers(bool is_key_up, guint keyval, |
| commands::KeyEvent *key_event); |
| |
| std::unique_ptr<KeyTranslator> key_translator_; |
| // Non modifier key is pressed or not after all keys are released. |
| bool is_non_modifier_key_pressed_; |
| // Currently pressed modifier keys. It is set of keyval. |
| set<guint> currently_pressed_modifiers_; |
| // Pending modifier keys. |
| set<commands::KeyEvent::ModifierKey> modifiers_to_be_sent_; |
| |
| DISALLOW_COPY_AND_ASSIGN(KeyEventHandler); |
| }; |
| |
| } // namespace ibus |
| } // namespace mozc |
| |
| #endif // MOZC_UNIX_IBUS_KEY_EVENT_HANDLER_H_ |