1// Copyright (c) 2013 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_UI_ASH_ASH_KEYBOARD_CONTROLLER_PROXY_H_
6#define CHROME_BROWSER_UI_ASH_ASH_KEYBOARD_CONTROLLER_PROXY_H_
7
8#include "base/basictypes.h"
9#include "base/memory/scoped_ptr.h"
10#include "content/public/browser/web_contents_observer.h"
11#include "extensions/browser/extension_function_dispatcher.h"
12#include "ui/keyboard/keyboard_controller_proxy.h"
13
14namespace content {
15class WebContents;
16}
17namespace extensions {
18class ExtensionFunctionDispatcher;
19class WindowController;
20}
21namespace gfx {
22class Rect;
23}
24namespace ui {
25class InputMethod;
26}
27
28// Subclass of KeyboardControllerProxy. It is used by KeyboardController to get
29// access to the virtual keyboard window and setup Chrome extension functions.
30class AshKeyboardControllerProxy
31    : public keyboard::KeyboardControllerProxy,
32      public content::WebContentsObserver,
33      public extensions::ExtensionFunctionDispatcher::Delegate {
34 public:
35  AshKeyboardControllerProxy();
36  virtual ~AshKeyboardControllerProxy();
37
38 private:
39  void OnRequest(const ExtensionHostMsg_Request_Params& params);
40
41  // keyboard::KeyboardControllerProxy overrides
42  virtual content::BrowserContext* GetBrowserContext() OVERRIDE;
43  virtual ui::InputMethod* GetInputMethod() OVERRIDE;
44  virtual void RequestAudioInput(content::WebContents* web_contents,
45      const content::MediaStreamRequest& request,
46      const content::MediaResponseCallback& callback) OVERRIDE;
47  virtual void SetupWebContents(content::WebContents* contents) OVERRIDE;
48  virtual void ShowKeyboardContainer(aura::Window* container) OVERRIDE;
49
50  // The overridden implementation dispatches
51  // chrome.virtualKeyboardPrivate.onTextInputBoxFocused event to extension to
52  // provide the input type information. Naturally, when the virtual keyboard
53  // extension is used as an IME then chrome.input.ime.onFocus provides the
54  // information, but not when the virtual keyboard is used in conjunction with
55  // another IME. virtualKeyboardPrivate.onTextInputBoxFocused is the remedy in
56  // that case.
57  virtual void SetUpdateInputType(ui::TextInputType type) OVERRIDE;
58
59  // extensions::ExtensionFunctionDispatcher::Delegate overrides
60  virtual extensions::WindowController* GetExtensionWindowController() const
61      OVERRIDE;
62  virtual content::WebContents* GetAssociatedWebContents() const OVERRIDE;
63
64  // content::WebContentsObserver overrides
65  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
66
67  scoped_ptr<extensions::ExtensionFunctionDispatcher>
68      extension_function_dispatcher_;
69
70  DISALLOW_COPY_AND_ASSIGN(AshKeyboardControllerProxy);
71};
72
73#endif  // CHROME_BROWSER_UI_ASH_ASH_KEYBOARD_CONTROLLER_PROXY_H_
74