1 // Copyright 2010-2018, Google Inc. 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are 6 // met: 7 // 8 // * Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above 11 // copyright notice, this list of conditions and the following disclaimer 12 // in the documentation and/or other materials provided with the 13 // distribution. 14 // * Neither the name of Google Inc. nor the names of its 15 // contributors may be used to endorse or promote products derived from 16 // this software without specific prior written permission. 17 // 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30 #ifndef MOZC_UNIX_IBUS_GTK_CANDIDATE_WINDOW_HANDLER_H_ 31 #define MOZC_UNIX_IBUS_GTK_CANDIDATE_WINDOW_HANDLER_H_ 32 33 #include <memory> 34 35 #include "base/port.h" 36 #include "unix/ibus/candidate_window_handler_interface.h" 37 38 namespace mozc { 39 namespace commands { 40 class RendererCommand; 41 } // namespace commands 42 namespace renderer { 43 class RendererInterface; 44 } // namespace renderer 45 namespace ibus { 46 47 class GSettingsObserver; 48 49 class GtkCandidateWindowHandler : public CandidateWindowHandlerInterface { 50 public: 51 // GtkCandidateWindowHandler takes ownership of renderer_ pointer. 52 explicit GtkCandidateWindowHandler(renderer::RendererInterface *renderer); 53 virtual ~GtkCandidateWindowHandler(); 54 55 virtual void Update(IBusEngine *engine, const commands::Output &output); 56 virtual void UpdateCursorRect(IBusEngine *engine); 57 virtual void Hide(IBusEngine *engine); 58 virtual void Show(IBusEngine *engine); 59 60 virtual void OnIBusCustomFontDescriptionChanged( 61 const string &custom_font_description); 62 63 virtual void OnIBusUseCustomFontDescriptionChanged( 64 bool use_custom_font_description); 65 66 void RegisterGSettingsObserver(); 67 68 protected: 69 bool SendUpdateCommand(IBusEngine *engine, 70 const commands::Output &output, 71 bool visibility) const; 72 73 std::unique_ptr<renderer::RendererInterface> renderer_; 74 std::unique_ptr<commands::Output> last_update_output_; 75 76 private: 77 string GetFontDescription() const; 78 string custom_font_description_; 79 bool use_custom_font_description_; 80 std::unique_ptr<GSettingsObserver> settings_observer_; 81 82 DISALLOW_COPY_AND_ASSIGN(GtkCandidateWindowHandler); 83 }; 84 85 } // namespace ibus 86 } // namespace mozc 87 #endif // MOZC_UNIX_IBUS_GTK_CANDIDATE_WINDOW_HANDLER_H_ 88