| /* |
| * Copyright (C) 2018 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.wifi; |
| |
| import android.net.ConnectivityManager.NetworkCallback; |
| import android.net.Network; |
| import android.net.NetworkCapabilities; |
| |
| import com.android.internal.util.Preconditions; |
| |
| /** Listens for changes to NetworkCapabilities to update the ConnectedAccessPointPreference. */ |
| class CaptivePortalNetworkCallback extends NetworkCallback { |
| |
| private final ConnectedAccessPointPreference mConnectedApPreference; |
| private final Network mNetwork; |
| |
| private boolean mIsCaptivePortal; |
| |
| CaptivePortalNetworkCallback( |
| Network network, ConnectedAccessPointPreference connectedApPreference) { |
| mNetwork = Preconditions.checkNotNull(network); |
| mConnectedApPreference = Preconditions.checkNotNull(connectedApPreference); |
| } |
| |
| @Override |
| public final void onLost(Network network) { |
| if (mNetwork.equals(network)) { |
| setIsCaptivePortal(false); |
| } |
| } |
| |
| @Override |
| public final void onCapabilitiesChanged(Network network, |
| NetworkCapabilities networkCapabilities) { |
| if (mNetwork.equals(network)) { |
| boolean isCaptivePortal = WifiUtils.canSignIntoNetwork(networkCapabilities); |
| setIsCaptivePortal(isCaptivePortal); |
| mConnectedApPreference.setCaptivePortal(isCaptivePortal); |
| } |
| } |
| |
| /** |
| * Called when captive portal capability changes for the current network. Default implementation |
| * is a no-op. Use {@link CaptivePortalNetworkCallback#isCaptivePortal()} to read new |
| * capability. |
| */ |
| public void onCaptivePortalCapabilityChanged() {} |
| |
| private void setIsCaptivePortal(boolean isCaptivePortal) { |
| if (isCaptivePortal == mIsCaptivePortal) { |
| return; |
| } |
| mIsCaptivePortal = isCaptivePortal; |
| onCaptivePortalCapabilityChanged(); |
| } |
| |
| /** |
| * Returns true if the supplied network and preference are not null and are the same as the |
| * originally supplied values. |
| */ |
| public final boolean isSameNetworkAndPreference( |
| Network network, ConnectedAccessPointPreference connectedApPreference) { |
| return mNetwork.equals(network) && mConnectedApPreference == connectedApPreference; |
| } |
| |
| /** |
| * Returns true if the most recent update to the NetworkCapabilities indicates a captive portal |
| * network and the Network was not lost in the interim. |
| */ |
| public final boolean isCaptivePortal() { |
| return mIsCaptivePortal; |
| } |
| |
| /** Returns the currently associated network. */ |
| public final Network getNetwork() { |
| return mNetwork; |
| } |
| } |