src/ui/base/ime/chromeos/ime_bridge.cc

   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/base/ime/chromeos/ime_bridge.h"
   6
   7 #include <map>
   8 #include "base/logging.h"
   9 #include "base/memory/singleton.h"
  10
  11 namespace chromeos {
  12
  13 static IMEBridge* g_ime_bridge = NULL;
  14
  15 // An implementation of IMEBridge.
  16 class IMEBridgeImpl : public IMEBridge {
  17  public:
  18   IMEBridgeImpl()
  19     : input_context_handler_(NULL),
  20       engine_handler_(NULL),
  21       candidate_window_handler_(NULL),
  22       current_text_input_(ui::TEXT_INPUT_TYPE_NONE) {
  23   }
  24
  25   virtual ~IMEBridgeImpl() {
  26   }
  27
  28   // IMEBridge override.
  29   virtual IMEInputContextHandlerInterface*
  30       GetInputContextHandler() const OVERRIDE {
  31     return input_context_handler_;
  32   }
  33
  34   // IMEBridge override.
  35   virtual void SetInputContextHandler(
  36       IMEInputContextHandlerInterface* handler) OVERRIDE {
  37     input_context_handler_ = handler;
  38   }
  39
  40   // IMEBridge override.
  41   virtual void SetCurrentEngineHandler(
  42       IMEEngineHandlerInterface* handler) OVERRIDE {
  43     engine_handler_ = handler;
  44   }
  45
  46   // IMEBridge override.
  47   virtual IMEEngineHandlerInterface* GetCurrentEngineHandler() const OVERRIDE {
  48     return engine_handler_;
  49   }
  50
  51   // IMEBridge override.
  52   virtual IMECandidateWindowHandlerInterface* GetCandidateWindowHandler() const
  53       OVERRIDE {
  54     return candidate_window_handler_;
  55   }
  56
  57   // IMEBridge override.
  58   virtual void SetCandidateWindowHandler(
  59       IMECandidateWindowHandlerInterface* handler) OVERRIDE {
  60     candidate_window_handler_ = handler;
  61   }
  62
  63   // IMEBridge override.
  64   virtual void SetCurrentTextInputType(ui::TextInputType input_type) OVERRIDE {
  65     current_text_input_ = input_type;
  66   }
  67
  68   // IMEBridge override.
  69   virtual ui::TextInputType GetCurrentTextInputType() const OVERRIDE {
  70     return current_text_input_;
  71   }
  72
  73  private:
  74   IMEInputContextHandlerInterface* input_context_handler_;
  75   IMEEngineHandlerInterface* engine_handler_;
  76   IMECandidateWindowHandlerInterface* candidate_window_handler_;
  77   ui::TextInputType current_text_input_;
  78
  79   DISALLOW_COPY_AND_ASSIGN(IMEBridgeImpl);
  80 };
  81
  82 ///////////////////////////////////////////////////////////////////////////////
  83 // IMEBridge
  84 IMEBridge::IMEBridge() {
  85 }
  86
  87 IMEBridge::~IMEBridge() {
  88 }
  89
  90 // static.
  91 void IMEBridge::Initialize() {
  92   if (!g_ime_bridge)
  93     g_ime_bridge = new IMEBridgeImpl();
  94 }
  95
  96 // static.
  97 void IMEBridge::Shutdown() {
  98   delete g_ime_bridge;
  99   g_ime_bridge = NULL;
 100 }
 101
 102 // static.
 103 IMEBridge* IMEBridge::Get() {
 104   return g_ime_bridge;
 105 }
 106
 107 }  // namespace chromeos