src/chrome/browser/chromeos/extensions/input_method_api.h

   1 // Copyright (c) 2011 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 #ifndef CHROME_BROWSER_CHROMEOS_EXTENSIONS_INPUT_METHOD_API_H_
   6 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_INPUT_METHOD_API_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "extensions/browser/browser_context_keyed_api_factory.h"
  11 #include "extensions/browser/event_router.h"
  12 #include "extensions/browser/extension_function.h"
  13
  14 namespace chromeos {
  15 class ExtensionInputMethodEventRouter;
  16 }
  17
  18 namespace extensions {
  19
  20 // Implements the inputMethodPrivate.getCurrentInputMethod method.
  21 class GetCurrentInputMethodFunction : public UIThreadExtensionFunction {
  22  public:
  23   GetCurrentInputMethodFunction() {}
  24
  25  protected:
  26   virtual ~GetCurrentInputMethodFunction() {}
  27
  28   virtual ResponseAction Run() OVERRIDE;
  29
  30  private:
  31   DECLARE_EXTENSION_FUNCTION("inputMethodPrivate.getCurrentInputMethod",
  32                              INPUTMETHODPRIVATE_GETCURRENTINPUTMETHOD)
  33 };
  34
  35 // Implements the inputMethodPrivate.setCurrentInputMethod method.
  36 class SetCurrentInputMethodFunction : public UIThreadExtensionFunction {
  37  public:
  38   SetCurrentInputMethodFunction() {}
  39
  40  protected:
  41   virtual ~SetCurrentInputMethodFunction() {}
  42
  43   virtual ResponseAction Run() OVERRIDE;
  44
  45  private:
  46   DECLARE_EXTENSION_FUNCTION("inputMethodPrivate.setCurrentInputMethod",
  47                              INPUTMETHODPRIVATE_SETCURRENTINPUTMETHOD)
  48 };
  49
  50 // Implements the inputMethodPrivate.getInputMethods method.
  51 class GetInputMethodsFunction : public UIThreadExtensionFunction {
  52  public:
  53   GetInputMethodsFunction() {}
  54
  55  protected:
  56   virtual ~GetInputMethodsFunction() {}
  57
  58   virtual ResponseAction Run() OVERRIDE;
  59
  60  private:
  61   DECLARE_EXTENSION_FUNCTION("inputMethodPrivate.getInputMethods",
  62                              INPUTMETHODPRIVATE_GETINPUTMETHODS)
  63 };
  64
  65 class InputMethodAPI : public BrowserContextKeyedAPI,
  66                        public extensions::EventRouter::Observer {
  67  public:
  68   static const char kOnInputMethodChanged[];
  69
  70   explicit InputMethodAPI(content::BrowserContext* context);
  71   virtual ~InputMethodAPI();
  72
  73   // Returns input method name for the given XKB (X keyboard extensions in X
  74   // Window System) id.
  75   static std::string GetInputMethodForXkb(const std::string& xkb_id);
  76
  77   // BrowserContextKeyedAPI implementation.
  78   static BrowserContextKeyedAPIFactory<InputMethodAPI>* GetFactoryInstance();
  79
  80   // BrowserContextKeyedAPI implementation.
  81   virtual void Shutdown() OVERRIDE;
  82
  83   // EventRouter::Observer implementation.
  84   virtual void OnListenerAdded(const extensions::EventListenerInfo& details)
  85       OVERRIDE;
  86
  87  private:
  88   friend class BrowserContextKeyedAPIFactory<InputMethodAPI>;
  89
  90   // BrowserContextKeyedAPI implementation.
  91   static const char* service_name() {
  92     return "InputMethodAPI";
  93   }
  94   static const bool kServiceIsNULLWhileTesting = true;
  95
  96   content::BrowserContext* const context_;
  97
  98   // Created lazily upon OnListenerAdded.
  99   scoped_ptr<chromeos::ExtensionInputMethodEventRouter>
 100       input_method_event_router_;
 101
 102   DISALLOW_COPY_AND_ASSIGN(InputMethodAPI);
 103 };
 104
 105 }  // namespace extensions
 106
 107 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_INPUT_METHOD_API_H_