chrome/browser/ui/ash/ash_keyboard_controller_proxy.h

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