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
14namespace chromeos {
15class ExtensionInputMethodEventRouter;
16}
17
18namespace extensions {
19
20// Implements the inputMethodPrivate.getCurrentInputMethod method.
21class 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.
36class 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.
51class 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
65class 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_
108