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/*
* Copyright (C) 2015 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.dialer.app.voicemail;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.media.AudioManager;
import com.android.dialer.common.LogUtil;
/** Listens for and caches headset state. */
class WiredHeadsetManager {
private static final String TAG = WiredHeadsetManager.class.getSimpleName();
private final WiredHeadsetBroadcastReceiver receiver;
private boolean isPluggedIn;
private Listener listener;
private Context context;
WiredHeadsetManager(Context context) {
this.context = context;
receiver = new WiredHeadsetBroadcastReceiver();
AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
isPluggedIn = audioManager.isWiredHeadsetOn();
}
void setListener(Listener listener) {
this.listener = listener;
}
boolean isPluggedIn() {
return isPluggedIn;
}
void registerReceiver() {
// Register for misc other intent broadcasts.
IntentFilter intentFilter = new IntentFilter(Intent.ACTION_HEADSET_PLUG);
context.registerReceiver(receiver, intentFilter);
}
void unregisterReceiver() {
context.unregisterReceiver(receiver);
}
private void onHeadsetPluggedInChanged(boolean isPluggedIn) {
if (this.isPluggedIn != isPluggedIn) {
LogUtil.v(
TAG,
"onHeadsetPluggedInChanged, mIsPluggedIn: " + this.isPluggedIn + " -> " + isPluggedIn);
boolean oldIsPluggedIn = this.isPluggedIn;
this.isPluggedIn = isPluggedIn;
if (listener != null) {
listener.onWiredHeadsetPluggedInChanged(oldIsPluggedIn, this.isPluggedIn);
}
}
}
interface Listener {
void onWiredHeadsetPluggedInChanged(boolean oldIsPluggedIn, boolean newIsPluggedIn);
}
/** Receiver for wired headset plugged and unplugged events. */
private class WiredHeadsetBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if (AudioManager.ACTION_HEADSET_PLUG.equals(intent.getAction())) {
boolean isPluggedIn = intent.getIntExtra("state", 0) == 1;
LogUtil.v(TAG, "ACTION_HEADSET_PLUG event, plugged in: " + isPluggedIn);
onHeadsetPluggedInChanged(isPluggedIn);
}
}
}
}
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