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_input_context_(ui::TEXT_INPUT_TYPE_NONE,
  23                                ui::TEXT_INPUT_MODE_DEFAULT,
  24                                0) {}
  25
  26   ~IMEBridgeImpl() override {}
  27
  28   // IMEBridge override.
  29   IMEInputContextHandlerInterface* GetInputContextHandler() const override {
  30     return input_context_handler_;
  31   }
  32
  33   // IMEBridge override.
  34   void SetInputContextHandler(
  35       IMEInputContextHandlerInterface* handler) override {
  36     input_context_handler_ = handler;
  37   }
  38
  39   // IMEBridge override.
  40   void SetCurrentEngineHandler(IMEEngineHandlerInterface* handler) override {
  41     engine_handler_ = handler;
  42   }
  43
  44   // IMEBridge override.
  45   IMEEngineHandlerInterface* GetCurrentEngineHandler() const override {
  46     return engine_handler_;
  47   }
  48
  49   // IMEBridge override.
  50   IMECandidateWindowHandlerInterface* GetCandidateWindowHandler()
  51       const override {
  52     return candidate_window_handler_;
  53   }
  54
  55   // IMEBridge override.
  56   void SetCandidateWindowHandler(
  57       IMECandidateWindowHandlerInterface* handler) override {
  58     candidate_window_handler_ = handler;
  59   }
  60
  61   // IMEBridge override.
  62   void SetCurrentInputContext(
  63       const IMEEngineHandlerInterface::InputContext& input_context) override {
  64     current_input_context_ = input_context;
  65   }
  66
  67   // IMEBridge override.
  68   const IMEEngineHandlerInterface::InputContext& GetCurrentInputContext()
  69       const override {
  70     return current_input_context_;
  71   }
  72
  73  private:
  74   IMEInputContextHandlerInterface* input_context_handler_;
  75   IMEEngineHandlerInterface* engine_handler_;
  76   IMECandidateWindowHandlerInterface* candidate_window_handler_;
  77   IMEEngineHandlerInterface::InputContext current_input_context_;
  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