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   ~IMEBridgeImpl() override {}
  26
  27   // IMEBridge override.
  28   IMEInputContextHandlerInterface* GetInputContextHandler() const override {
  29     return input_context_handler_;
  30   }
  31
  32   // IMEBridge override.
  33   void SetInputContextHandler(
  34       IMEInputContextHandlerInterface* handler) override {
  35     input_context_handler_ = handler;
  36   }
  37
  38   // IMEBridge override.
  39   void SetCurrentEngineHandler(IMEEngineHandlerInterface* handler) override {
  40     engine_handler_ = handler;
  41   }
  42
  43   // IMEBridge override.
  44   IMEEngineHandlerInterface* GetCurrentEngineHandler() const override {
  45     return engine_handler_;
  46   }
  47
  48   // IMEBridge override.
  49   IMECandidateWindowHandlerInterface* GetCandidateWindowHandler()
  50       const override {
  51     return candidate_window_handler_;
  52   }
  53
  54   // IMEBridge override.
  55   void SetCandidateWindowHandler(
  56       IMECandidateWindowHandlerInterface* handler) override {
  57     candidate_window_handler_ = handler;
  58   }
  59
  60   // IMEBridge override.
  61   void SetCurrentTextInputType(ui::TextInputType input_type) override {
  62     current_text_input_ = input_type;
  63   }
  64
  65   // IMEBridge override.
  66   ui::TextInputType GetCurrentTextInputType() const override {
  67     return current_text_input_;
  68   }
  69
  70  private:
  71   IMEInputContextHandlerInterface* input_context_handler_;
  72   IMEEngineHandlerInterface* engine_handler_;
  73   IMECandidateWindowHandlerInterface* candidate_window_handler_;
  74   ui::TextInputType current_text_input_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(IMEBridgeImpl);
  77 };
  78
  79 ///////////////////////////////////////////////////////////////////////////////
  80 // IMEBridge
  81 IMEBridge::IMEBridge() {
  82 }
  83
  84 IMEBridge::~IMEBridge() {
  85 }
  86
  87 // static.
  88 void IMEBridge::Initialize() {
  89   if (!g_ime_bridge)
  90     g_ime_bridge = new IMEBridgeImpl();
  91 }
  92
  93 // static.
  94 void IMEBridge::Shutdown() {
  95   delete g_ime_bridge;
  96   g_ime_bridge = NULL;
  97 }
  98
  99 // static.
 100 IMEBridge* IMEBridge::Get() {
 101   return g_ime_bridge;
 102 }
 103
 104 }  // namespace chromeos