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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.android.inputmethod.latin;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.media.AudioManager;
import android.view.HapticFeedbackConstants;
import com.android.inputmethod.compat.VibratorCompatWrapper;
import com.android.inputmethod.keyboard.Keyboard;
import com.android.inputmethod.keyboard.KeyboardSwitcher;
import com.android.inputmethod.keyboard.LatinKeyboardView;
/**
* This class gathers audio feedback and haptic feedback functions.
*
* It offers a consistent and simple interface that allows LatinIME to forget about the
* complexity of settings and the like.
*/
public class AudioAndHapticFeedbackManager extends BroadcastReceiver {
final private LatinIME mLatinIme;
final private SettingsValues mSettingsValues;
final private KeyboardSwitcher mKeyboardSwitcher;
final private VibratorCompatWrapper mVibrator;
private boolean mSilentModeOn;
public AudioAndHapticFeedbackManager(final LatinIME latinIme,
final SettingsValues settingsValues, final KeyboardSwitcher keyboardSwitcher) {
mLatinIme = latinIme;
mSettingsValues = settingsValues;
mKeyboardSwitcher = keyboardSwitcher;
mSilentModeOn = true;
mVibrator = VibratorCompatWrapper.getInstance(mLatinIme);
mAudioManager = (AudioManager) mLatinIme.getSystemService(Context.AUDIO_SERVICE);
updateRingerMode();
}
public void hapticAndAudioFeedback(final int primaryCode) {
vibrate();
playKeyClick(primaryCode);
}
private boolean isSoundOn() {
return mSettingsValues.mSoundOn && !mSilentModeOn;
}
// update flags for silent mode
private void updateRingerMode() {
if (!mSettingsValues.mSoundOn || mAudioManager == null) {
mSilentModeOn = true;
} else {
mSilentModeOn = (mAudioManager.getRingerMode() != AudioManager.RINGER_MODE_NORMAL);
}
}
private void playKeyClick(int primaryCode) {
// if mAudioManager is null, we can't play a sound anyway, so return
if (mAudioManager == null) return;
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if (isSoundOn()) {
final int sound;
switch (primaryCode) {
case Keyboard.CODE_DELETE:
sound = AudioManager.FX_KEYPRESS_DELETE;
break;
case Keyboard.CODE_ENTER:
sound = AudioManager.FX_KEYPRESS_RETURN;
break;
case Keyboard.CODE_SPACE:
sound = AudioManager.FX_KEYPRESS_SPACEBAR;
break;
default:
sound = AudioManager.FX_KEYPRESS_STANDARD;
break;
}
mAudioManager.playSoundEffect(sound, mSettingsValues.mFxVolume);
}
}
// TODO: make this private when LatinIME does not call it any more
public void vibrate() {
if (!mSettingsValues.mVibrateOn) {
return;
}
if (mSettingsValues.mKeypressVibrationDuration < 0) {
// Go ahead with the system default
LatinKeyboardView inputView = mKeyboardSwitcher.getKeyboardView();
if (inputView != null) {
inputView.performHapticFeedback(
HapticFeedbackConstants.KEYBOARD_TAP,
HapticFeedbackConstants.FLAG_IGNORE_GLOBAL_SETTING);
}
} else if (mVibrator != null) {
mVibrator.vibrate(mSettingsValues.mKeypressVibrationDuration);
}
}
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (action.equals(AudioManager.RINGER_MODE_CHANGED_ACTION)) {
updateRingerMode();
}
}
}