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1 package org.hedgewars.hedgeroid; |
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2 |
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3 import org.hedgewars.hedgeroid.R; |
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4 import org.hedgewars.hedgeroid.frontlib.Frontlib; |
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5 import org.hedgewars.hedgeroid.netplay.Netplay; |
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6 import org.hedgewars.hedgeroid.netplay.Netplay.State; |
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7 |
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8 import android.app.Activity; |
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9 import android.content.BroadcastReceiver; |
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10 import android.content.Context; |
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11 import android.content.Intent; |
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12 import android.content.IntentFilter; |
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13 import android.os.Bundle; |
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14 import android.support.v4.app.Fragment; |
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15 import android.support.v4.content.LocalBroadcastManager; |
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16 import android.widget.Toast; |
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17 |
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18 /** |
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19 * Fragment for use by an activity that depends on the state of the network |
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20 * connection. The activity must implement the NetplayStateListener interface. |
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21 * |
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22 * This fragment manages a few aspects of the netplay connection: Requesting |
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23 * the network system loop to run at high frequency while the activity is in |
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24 * the foreground, and reacting to changes in the networking state by calling |
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25 * a callback method on the activity. |
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26 */ |
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27 public class NetplayStateFragment extends Fragment { |
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28 private Netplay netplay; |
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29 private Context appContext; |
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30 private LocalBroadcastManager broadcastManager; |
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31 private NetplayStateListener listener; |
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32 private State knownState; |
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33 |
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34 interface NetplayStateListener { |
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35 /** |
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36 * This is called while the activity is running, and every time during resume, if |
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37 * a change in the networking state is detected. It is also called once |
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38 * with the initial state (which could be called a change from the "unknown" state). |
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39 */ |
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40 void onNetplayStateChanged(State newState); |
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41 } |
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42 |
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43 @Override |
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44 public void onAttach(Activity activity) { |
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45 super.onAttach(activity); |
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46 try { |
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47 listener = (NetplayStateListener) activity; |
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48 } catch(ClassCastException e) { |
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49 throw new ClassCastException("Activity " + activity + " must implement NetplayStateListener to use NetplayStateFragment."); |
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50 } |
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51 } |
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52 |
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53 @Override |
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54 public void onDetach() { |
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55 super.onDetach(); |
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56 listener = null; |
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57 } |
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58 |
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59 @Override |
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60 public void onCreate(Bundle icicle) { |
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61 super.onCreate(icicle); |
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62 appContext = getActivity().getApplicationContext(); |
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63 broadcastManager = LocalBroadcastManager.getInstance(appContext); |
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64 netplay = Netplay.getAppInstance(appContext); |
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65 } |
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66 |
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67 @Override |
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68 public void onResume() { |
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69 super.onResume(); |
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70 broadcastManager.registerReceiver(disconnectReceiver, new IntentFilter(Netplay.ACTION_DISCONNECTED)); |
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71 broadcastManager.registerReceiver(leaveRoomReceiver, new IntentFilter(Netplay.ACTION_LEFT_ROOM)); |
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72 broadcastManager.registerReceiver(stateChangeReceiver, new IntentFilter(Netplay.ACTION_STATE_CHANGED)); |
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73 |
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74 State newState = netplay.getState(); |
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75 if(knownState != newState) { |
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76 listener.onNetplayStateChanged(newState); |
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77 knownState = newState; |
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78 } |
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79 } |
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80 |
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81 @Override |
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82 public void onPause() { |
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83 super.onPause(); |
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84 broadcastManager.unregisterReceiver(disconnectReceiver); |
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85 broadcastManager.unregisterReceiver(leaveRoomReceiver); |
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86 broadcastManager.unregisterReceiver(stateChangeReceiver); |
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87 } |
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88 |
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89 private final BroadcastReceiver disconnectReceiver = new BroadcastReceiver() { |
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90 @Override |
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91 public void onReceive(Context context, Intent intent) { |
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92 if(intent.getBooleanExtra(Netplay.EXTRA_HAS_ERROR, true)) { |
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93 String message = intent.getStringExtra(Netplay.EXTRA_MESSAGE); |
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94 String toastText = getString(R.string.toast_disconnected, message); |
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95 Toast.makeText(appContext, toastText, Toast.LENGTH_LONG).show(); |
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96 } |
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97 } |
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98 }; |
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99 |
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100 private final BroadcastReceiver leaveRoomReceiver = new BroadcastReceiver() { |
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101 @Override |
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102 public void onReceive(Context context, Intent intent) { |
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103 int reason = intent.getIntExtra(Netplay.EXTRA_REASON, -1); |
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104 if(reason == Frontlib.NETCONN_ROOMLEAVE_ABANDONED) { |
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105 Toast.makeText(appContext, R.string.toast_room_abandoned, Toast.LENGTH_LONG).show(); |
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106 } else if(reason == Frontlib.NETCONN_ROOMLEAVE_KICKED) { |
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107 Toast.makeText(appContext, R.string.toast_kicked, Toast.LENGTH_LONG).show(); |
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108 } |
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109 } |
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110 }; |
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111 |
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112 private final BroadcastReceiver stateChangeReceiver = new BroadcastReceiver() { |
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113 @Override |
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114 public void onReceive(Context context, Intent intent) { |
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115 State newState = netplay.getState(); |
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116 listener.onNetplayStateChanged(newState); |
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117 knownState = newState; |
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118 } |
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119 }; |
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120 } |