Revert of Add button to add new FSP services to Files app. (patchset #8 id:140001...
[chromium-blink-merge.git] / chrome / browser / chromeos / input_method / candidate_window_controller.h
blobab356400cffac834f16b4345a7f200bc68a10803
1 // Copyright (c) 2012 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 // This file implements the input method candidate window used on Chrome OS.
7 #ifndef CHROME_BROWSER_CHROMEOS_INPUT_METHOD_CANDIDATE_WINDOW_CONTROLLER_H_
8 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_CANDIDATE_WINDOW_CONTROLLER_H_
10 #include "base/basictypes.h"
12 namespace chromeos {
13 namespace input_method {
15 // CandidateWindowController is used for controlling the input method
16 // candidate window. Once the initialization is done, the controller
17 // starts monitoring signals sent from the the background input method
18 // daemon, and shows and hides the candidate window as neeeded. Upon
19 // deletion of the object, monitoring stops and the view used for
20 // rendering the candidate view is deleted.
21 class CandidateWindowController {
22 public:
23 class Observer {
24 public:
25 virtual ~Observer() {}
27 virtual void CandidateClicked(int index) = 0;
28 virtual void CandidateWindowOpened() = 0;
29 virtual void CandidateWindowClosed() = 0;
32 virtual ~CandidateWindowController() {}
34 virtual void AddObserver(Observer* observer) = 0;
35 virtual void RemoveObserver(Observer* observer) = 0;
36 virtual void Hide() = 0;
38 // Gets an instance of CandidateWindowController. Caller has to delete the
39 // returned object.
40 static CandidateWindowController* CreateCandidateWindowController();
43 } // namespace input_method
44 } // namespace chromeos
46 #endif // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_CANDIDATE_WINDOW_CONTROLLER_H_