blob: bcf02e50d7f1ecd7e8b0c4d6c283b409088cd566 [file] [log] [blame]
/*
* Copyright (C) 2020 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.settings.slices;
import static com.android.settings.slices.CustomSliceRegistry.VOLUME_SLICES_URI;
import android.content.ContentProvider;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.media.AudioManager;
import android.net.Uri;
import android.util.ArrayMap;
import android.util.Log;
import androidx.annotation.VisibleForTesting;
import com.android.settingslib.SliceBroadcastRelay;
import java.util.Map;
/**
* This helper is to handle the broadcasts of volume slices
*/
public class VolumeSliceHelper {
private static final String TAG = "VolumeSliceHelper";
@VisibleForTesting
static Map<Uri, Integer> sRegisteredUri = new ArrayMap<>();
@VisibleForTesting
static IntentFilter sIntentFilter;
static void registerIntentToUri(Context context, IntentFilter intentFilter, Uri sliceUri,
int audioStream) {
Log.d(TAG, "Registering uri for broadcast relay: " + sliceUri);
synchronized (sRegisteredUri) {
if (sRegisteredUri.isEmpty()) {
SliceBroadcastRelay.registerReceiver(context, VOLUME_SLICES_URI,
VolumeSliceRelayReceiver.class, intentFilter);
sIntentFilter = intentFilter;
}
sRegisteredUri.put(sliceUri, audioStream);
}
}
static boolean unregisterUri(Context context, Uri sliceUri) {
if (!sRegisteredUri.containsKey(sliceUri)) {
return false;
}
Log.d(TAG, "Unregistering uri broadcast relay: " + sliceUri);
synchronized (sRegisteredUri) {
sRegisteredUri.remove(sliceUri);
if (sRegisteredUri.isEmpty()) {
sIntentFilter = null;
SliceBroadcastRelay.unregisterReceivers(context, VOLUME_SLICES_URI);
}
}
return true;
}
static void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (sIntentFilter == null || action == null || !sIntentFilter.hasAction(action)) {
return;
}
final String uriString = intent.getStringExtra(SliceBroadcastRelay.EXTRA_URI);
if (uriString == null) {
return;
}
final Uri uri = Uri.parse(uriString);
if (!VOLUME_SLICES_URI.equals(ContentProvider.getUriWithoutUserId(uri))) {
Log.w(TAG, "Invalid uri: " + uriString);
return;
}
if (AudioManager.VOLUME_CHANGED_ACTION.equals(action)) {
handleVolumeChanged(context, intent);
} else if (AudioManager.STREAM_MUTE_CHANGED_ACTION.equals(action)
|| AudioManager.STREAM_DEVICES_CHANGED_ACTION.equals(action)) {
handleStreamChanged(context, intent);
} else {
notifyAllStreamsChanged(context);
}
}
private static void handleVolumeChanged(Context context, Intent intent) {
final int vol = intent.getIntExtra(AudioManager.EXTRA_VOLUME_STREAM_VALUE, -1);
final int prevVol = intent.getIntExtra(AudioManager.EXTRA_PREV_VOLUME_STREAM_VALUE, -1);
if (vol != prevVol) {
handleStreamChanged(context, intent);
}
}
private static void handleStreamChanged(Context context, Intent intent) {
final int inputType = intent.getIntExtra(AudioManager.EXTRA_VOLUME_STREAM_TYPE, -1);
for (Map.Entry<Uri, Integer> entry : sRegisteredUri.entrySet()) {
if (entry.getValue() == inputType) {
context.getContentResolver().notifyChange(entry.getKey(), null /* observer */);
break;
}
}
}
private static void notifyAllStreamsChanged(Context context) {
sRegisteredUri.forEach((uri, audioStream) -> {
context.getContentResolver().notifyChange(uri, null /* observer */);
});
}
}