Add missing class from last commit

git-svn-id: https://connectbot.googlecode.com/svn/trunk/connectbot@487 df292f66-193f-0410-a5fc-6d59da041ff2

1 files changed, 155 insertions, 0 deletions

diff --git a/src/org/connectbot/service/ConnectivityReceiver.java b/src/org/connectbot/service/ConnectivityReceiver.java
new file mode 100644
index 0000000..e2d2d3b
--- /dev/null
+++ b/src/org/connectbot/service/ConnectivityReceiver.java
@@ -0,0 +1,155 @@
+/**
+ *
+ */
+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;
+
+	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 Wifi lock if necessary.
+	 */
+	public void incRef() {
+		synchronized (this) {
+			acquireWifiLockIfNecessary();
+
+			mNetworkRef  += 1;
+		}
+	}
+
+	public void decRef() {
+		synchronized (this) {
+			mNetworkRef -= 1;
+
+			releaseWifiLockIfNecessary();
+		}
+	}
+
+	/**
+	 * @param mLockingWifi
+	 */
+	public void setWantWifiLock(boolean lockingWifi) {
+		synchronized (this) {
+			mLockingWifi = lockingWifi;
+
+			if (mLockingWifi) {
+				acquireWifiLockIfNecessary();
+			} else if (!mLockingWifi) {
+				releaseWifiLockIfNecessary();
+			}
+		}
+	}
+
+	/**
+	 *
+	 */
+	private void acquireWifiLockIfNecessary() {
+		synchronized (this) {
+			if (mLockingWifi && mNetworkRef > 0 && !mWifiLock.isHeld()) {
+				mWifiLock.acquire();
+			}
+		}
+	}
+
+	/**
+	 *
+	 */
+	private void releaseWifiLockIfNecessary() {
+		if (mNetworkRef == 0 && mWifiLock.isHeld()) {
+			mWifiLock.release();
+		}
+	}
+
+	/**
+	 * @return whether we're connected to a network
+	 */
+	public boolean isConnected() {
+		return mIsConnected;
+	}
+}