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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/accelerators/spoken_feedback_toggler.h"
#include "ash/accelerators/key_hold_detector.h"
#include "ash/accessibility_delegate.h"
#include "ash/shell.h"
namespace ash {
namespace {
bool speech_feedback_toggler_enabled = false;
}
// static
bool SpokenFeedbackToggler::IsEnabled() {
return speech_feedback_toggler_enabled;
}
// static
void SpokenFeedbackToggler::SetEnabled(bool enabled) {
speech_feedback_toggler_enabled = enabled;
}
// static
scoped_ptr<ui::EventHandler> SpokenFeedbackToggler::CreateHandler() {
scoped_ptr<KeyHoldDetector::Delegate> delegate(new SpokenFeedbackToggler());
return scoped_ptr<ui::EventHandler>(new KeyHoldDetector(delegate.Pass()));
}
bool SpokenFeedbackToggler::ShouldProcessEvent(
const ui::KeyEvent* event) const {
return IsEnabled() && event->key_code() == ui::VKEY_F6;
}
bool SpokenFeedbackToggler::IsStartEvent(const ui::KeyEvent* event) const {
return event->type() == ui::ET_KEY_PRESSED &&
event->flags() & ui::EF_SHIFT_DOWN;
}
void SpokenFeedbackToggler::OnKeyHold(const ui::KeyEvent* event) {
if (!toggled_) {
toggled_ = true;
Shell::GetInstance()->accessibility_delegate()->
ToggleSpokenFeedback(A11Y_NOTIFICATION_SHOW);
}
}
void SpokenFeedbackToggler::OnKeyUnhold(const ui::KeyEvent* event) {
toggled_ = false;
}
SpokenFeedbackToggler::SpokenFeedbackToggler() : toggled_(false) {}
SpokenFeedbackToggler::~SpokenFeedbackToggler() {}
} // namespace ash
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