From 49b779dcaf03e3598d2709b321e20ea029b25163 Mon Sep 17 00:00:00 2001 From: Kenny Root Date: Wed, 1 Oct 2014 23:04:51 +0100 Subject: Convert to gradle build system --- .../connectbot/service/ConnectivityReceiver.java | 154 +++++++++++++++++++++ 1 file changed, 154 insertions(+) create mode 100644 app/src/main/java/org/connectbot/service/ConnectivityReceiver.java (limited to 'app/src/main/java/org/connectbot/service/ConnectivityReceiver.java') diff --git a/app/src/main/java/org/connectbot/service/ConnectivityReceiver.java b/app/src/main/java/org/connectbot/service/ConnectivityReceiver.java new file mode 100644 index 0000000..3248a2a --- /dev/null +++ b/app/src/main/java/org/connectbot/service/ConnectivityReceiver.java @@ -0,0 +1,154 @@ +/** + * + */ +package org.connectbot.service; + +import android.content.BroadcastReceiver; +import android.content.Context; +import android.content.Intent; +import android.content.IntentFilter; +import android.net.ConnectivityManager; +import android.net.NetworkInfo; +import android.net.NetworkInfo.State; +import android.net.wifi.WifiManager; +import android.net.wifi.WifiManager.WifiLock; +import android.util.Log; + +/** + * @author kroot + * + */ +public class ConnectivityReceiver extends BroadcastReceiver { + private static final String TAG = "ConnectBot.ConnectivityManager"; + + private boolean mIsConnected = false; + + final private TerminalManager mTerminalManager; + + final private WifiLock mWifiLock; + + private int mNetworkRef = 0; + + private boolean mLockingWifi; + + private Object[] mLock = new Object[0]; + + public ConnectivityReceiver(TerminalManager manager, boolean lockingWifi) { + mTerminalManager = manager; + + final ConnectivityManager cm = + (ConnectivityManager) manager.getSystemService(Context.CONNECTIVITY_SERVICE); + + final WifiManager wm = (WifiManager) manager.getSystemService(Context.WIFI_SERVICE); + mWifiLock = wm.createWifiLock(TAG); + + final NetworkInfo info = cm.getActiveNetworkInfo(); + if (info != null) { + mIsConnected = (info.getState() == State.CONNECTED); + } + + mLockingWifi = lockingWifi; + + final IntentFilter filter = new IntentFilter(); + filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION); + manager.registerReceiver(this, filter); + } + + /* (non-Javadoc) + * @see android.content.BroadcastReceiver#onReceive(android.content.Context, android.content.Intent) + */ + @Override + public void onReceive(Context context, Intent intent) { + final String action = intent.getAction(); + + if (!action.equals(ConnectivityManager.CONNECTIVITY_ACTION)) { + Log.w(TAG, "onReceived() called: " + intent); + return; + } + + boolean noConnectivity = intent.getBooleanExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, false); + boolean isFailover = intent.getBooleanExtra(ConnectivityManager.EXTRA_IS_FAILOVER, false); + + Log.d(TAG, "onReceived() called; noConnectivity? " + noConnectivity + "; isFailover? " + isFailover); + + if (noConnectivity && !isFailover && mIsConnected) { + mIsConnected = false; + mTerminalManager.onConnectivityLost(); + } else if (!mIsConnected) { + NetworkInfo info = (NetworkInfo) intent.getExtras() + .get(ConnectivityManager.EXTRA_NETWORK_INFO); + + if (mIsConnected = (info.getState() == State.CONNECTED)) { + mTerminalManager.onConnectivityRestored(); + } + } + } + + /** + * + */ + public void cleanup() { + if (mWifiLock.isHeld()) + mWifiLock.release(); + + mTerminalManager.unregisterReceiver(this); + } + + /** + * Increase the number of things using the network. Acquire a Wi-Fi lock + * if necessary. + */ + public void incRef() { + synchronized (mLock) { + mNetworkRef += 1; + + acquireWifiLockIfNecessaryLocked(); + } + } + + /** + * Decrease the number of things using the network. Release the Wi-Fi lock + * if necessary. + */ + public void decRef() { + synchronized (mLock) { + mNetworkRef -= 1; + + releaseWifiLockIfNecessaryLocked(); + } + } + + /** + * @param mLockingWifi + */ + public void setWantWifiLock(boolean lockingWifi) { + synchronized (mLock) { + mLockingWifi = lockingWifi; + + if (mLockingWifi) { + acquireWifiLockIfNecessaryLocked(); + } else { + releaseWifiLockIfNecessaryLocked(); + } + } + } + + private void acquireWifiLockIfNecessaryLocked() { + if (mLockingWifi && mNetworkRef > 0 && !mWifiLock.isHeld()) { + mWifiLock.acquire(); + } + } + + private void releaseWifiLockIfNecessaryLocked() { + if (mNetworkRef == 0 && mWifiLock.isHeld()) { + mWifiLock.release(); + } + } + + /** + * @return whether we're connected to a network + */ + public boolean isConnected() { + return mIsConnected; + } +} -- cgit v1.2.3