1 // Copyright 2014 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.
5 #ifndef ASH_ACCELERATORS_SPOKEN_FEEDBACK_TOGGLER_H_
6 #define ASH_ACCELERATORS_SPOKEN_FEEDBACK_TOGGLER_H_
8 #include "ash/accelerators/key_hold_detector.h"
9 #include "ash/ash_export.h"
10 #include "base/memory/scoped_ptr.h"
11 #include "ui/events/event_handler.h"
19 // A KeyHoldDetector delegate to toggle spoken feedback.
20 class ASH_EXPORT SpokenFeedbackToggler
: public KeyHoldDetector::Delegate
{
22 static bool IsEnabled();
23 static void SetEnabled(bool enabled
);
24 static scoped_ptr
<ui::EventHandler
> CreateHandler();
26 // A scoped object to enable and disable the magnifier accelerator for test.
27 class ScopedEnablerForTest
{
29 ScopedEnablerForTest() {
32 ~ScopedEnablerForTest() {
37 DISALLOW_COPY_AND_ASSIGN(ScopedEnablerForTest
);
41 // KeyHoldDetector overrides:
42 bool ShouldProcessEvent(const ui::KeyEvent
* event
) const override
;
43 bool IsStartEvent(const ui::KeyEvent
* event
) const override
;
44 bool ShouldStopEventPropagation() const override
;
45 void OnKeyHold(const ui::KeyEvent
* event
) override
;
46 void OnKeyUnhold(const ui::KeyEvent
* event
) override
;
48 SpokenFeedbackToggler();
49 ~SpokenFeedbackToggler() override
;
53 DISALLOW_COPY_AND_ASSIGN(SpokenFeedbackToggler
);
58 #endif // ASH_ACCELERATORS_SPOKEN_FEEDBACK_TOGGLER_H_