project_files/Android-build/SDL-android-project/src/org/hedgewars/hedgeroid/NetplayStateFragment.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/project_files/Android-build/SDL-android-project/src/org/hedgewars/hedgeroid/NetplayStateFragment.java Sat Aug 18 00:47:51 2012 +0200
@@ -0,0 +1,120 @@
+package org.hedgewars.hedgeroid;
+
+import org.hedgewars.hedgeroid.R;
+import org.hedgewars.hedgeroid.frontlib.Frontlib;
+import org.hedgewars.hedgeroid.netplay.Netplay;
+import org.hedgewars.hedgeroid.netplay.Netplay.State;
+
+import android.app.Activity;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.content.LocalBroadcastManager;
+import android.widget.Toast;
+
+/**
+ * Fragment for use by an activity that depends on the state of the network
+ * connection. The activity must implement the NetplayStateListener interface.
+ *
+ * This fragment manages a few aspects of the netplay connection: Requesting
+ * the network system loop to run at high frequency while the activity is in
+ * the foreground, and reacting to changes in the networking state by calling
+ * a callback method on the activity.
+ */
+public class NetplayStateFragment extends Fragment {
+ private Netplay netplay;
+ private Context appContext;
+ private LocalBroadcastManager broadcastManager;
+ private NetplayStateListener listener;
+ private State knownState;
+
+ interface NetplayStateListener {
+ /**
+ * This is called while the activity is running, and every time during resume, if
+ * a change in the networking state is detected. It is also called once
+ * with the initial state (which could be called a change from the "unknown" state).
+ */
+ void onNetplayStateChanged(State newState);
+ }
+
+ @Override
+ public void onAttach(Activity activity) {
+ super.onAttach(activity);
+ try {
+ listener = (NetplayStateListener) activity;
+ } catch(ClassCastException e) {
+ throw new ClassCastException("Activity " + activity + " must implement NetplayStateListener to use NetplayStateFragment.");
+ }
+ }
+
+ @Override
+ public void onDetach() {
+ super.onDetach();
+ listener = null;
+ }
+
+ @Override
+ public void onCreate(Bundle icicle) {
+ super.onCreate(icicle);
+ appContext = getActivity().getApplicationContext();
+ broadcastManager = LocalBroadcastManager.getInstance(appContext);
+ netplay = Netplay.getAppInstance(appContext);
+ }
+
+ @Override
+ public void onResume() {
+ super.onResume();
+ broadcastManager.registerReceiver(disconnectReceiver, new IntentFilter(Netplay.ACTION_DISCONNECTED));
+ broadcastManager.registerReceiver(leaveRoomReceiver, new IntentFilter(Netplay.ACTION_LEFT_ROOM));
+ broadcastManager.registerReceiver(stateChangeReceiver, new IntentFilter(Netplay.ACTION_STATE_CHANGED));
+
+ State newState = netplay.getState();
+ if(knownState != newState) {
+ listener.onNetplayStateChanged(newState);
+ knownState = newState;
+ }
+ }
+
+ @Override
+ public void onPause() {
+ super.onPause();
+ broadcastManager.unregisterReceiver(disconnectReceiver);
+ broadcastManager.unregisterReceiver(leaveRoomReceiver);
+ broadcastManager.unregisterReceiver(stateChangeReceiver);
+ }
+
+ private final BroadcastReceiver disconnectReceiver = new BroadcastReceiver() {
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ if(intent.getBooleanExtra(Netplay.EXTRA_HAS_ERROR, true)) {
+ String message = intent.getStringExtra(Netplay.EXTRA_MESSAGE);
+ String toastText = getString(R.string.toast_disconnected, message);
+ Toast.makeText(appContext, toastText, Toast.LENGTH_LONG).show();
+ }
+ }
+ };
+
+ private final BroadcastReceiver leaveRoomReceiver = new BroadcastReceiver() {
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ int reason = intent.getIntExtra(Netplay.EXTRA_REASON, -1);
+ if(reason == Frontlib.NETCONN_ROOMLEAVE_ABANDONED) {
+ Toast.makeText(appContext, R.string.toast_room_abandoned, Toast.LENGTH_LONG).show();
+ } else if(reason == Frontlib.NETCONN_ROOMLEAVE_KICKED) {
+ Toast.makeText(appContext, R.string.toast_kicked, Toast.LENGTH_LONG).show();
+ }
+ }
+ };
+
+ private final BroadcastReceiver stateChangeReceiver = new BroadcastReceiver() {
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ State newState = netplay.getState();
+ listener.onNetplayStateChanged(newState);
+ knownState = newState;
+ }
+ };
+}