BayernMessenger/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/network/NetworkConnectivityChecker.kt

61 lines
1.7 KiB
Kotlin

/*
* Copyright 2019 New Vector Ltd
*
* 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 im.vector.matrix.android.internal.network
import android.content.Context
import com.novoda.merlin.Merlin
import com.novoda.merlin.MerlinsBeard
import com.novoda.merlin.registerable.connection.Connectable
internal class NetworkConnectivityChecker(context: Context) {
private val merlin = Merlin.Builder().withConnectableCallbacks().build(context)
private val merlinsBeard = MerlinsBeard.from(context)
private val listeners = ArrayList<Listener>()
fun register(listener: Listener) {
if (listeners.isEmpty()) {
merlin.bind()
}
listeners.add(listener)
val connectable = Connectable {
if (listeners.contains(listener)) {
listener.onConnect()
}
}
merlin.registerConnectable(connectable)
}
fun unregister(listener: Listener) {
if (listeners.remove(listener) && listeners.isEmpty()) {
merlin.unbind()
}
}
fun isConnected(): Boolean {
return merlinsBeard.isConnected
}
interface Listener {
fun onConnect()
}
}