project_files/Android-build/SDL-android-project/src/org/hedgewars/hedgeroid/netplay/LobbyChatFragment.java
author Medo <smaxein@googlemail.com>
Tue, 17 Jul 2012 22:27:16 +0200
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package org.hedgewars.hedgeroid.netplay;
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import org.hedgewars.hedgeroid.R;
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import org.hedgewars.hedgeroid.netplay.NetplayService.NetplayBinder;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.content.ServiceConnection;
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import android.content.res.Configuration;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.IBinder;
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import android.support.v4.app.Fragment;
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import android.text.Spanned;
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import android.text.method.LinkMovementMethod;
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import android.util.Log;
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import android.view.KeyEvent;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.inputmethod.EditorInfo;
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import android.widget.EditText;
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import android.widget.ScrollView;
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import android.widget.TextView;
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import android.widget.TextView.OnEditorActionListener;
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public class LobbyChatFragment extends Fragment {
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	private TextView textView;
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	private EditText editText;
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	private ScrollView scrollView;
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	private Netconn netconn;
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	private void scrollDown() {
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		scrollView.post(new Runnable() {
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			public void run() {
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				scrollView.smoothScrollTo(0, textView.getBottom());
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			}
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		});
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	}
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	private void commitText() {
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		if(netconn != null && netconn.isConnected()) {
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			String text = editText.getText().toString();
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			editText.setText("");
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			netconn.sendChat(text);
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		}
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	}
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	@Override
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	public void onStart() {
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		super.onStart();
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		getActivity().bindService(new Intent(getActivity(), NetplayService.class), serviceConnection,
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	            Context.BIND_AUTO_CREATE);
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		Log.d("LobbyChatFragment", "started");
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	}
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	@Override
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	public View onCreateView(LayoutInflater inflater, ViewGroup container,
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			Bundle savedInstanceState) {
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		View view = inflater.inflate(R.layout.lobby_chat_fragment, container, false);
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		textView = (TextView) view.findViewById(R.id.lobbyConsole);
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		editText = (EditText) view.findViewById(R.id.lobbyChatInput);
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		scrollView = (ScrollView) view.findViewById(R.id.lobbyConsoleScroll);
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		textView.setMovementMethod(LinkMovementMethod.getInstance());
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        editText.setOnEditorActionListener(new OnEditorActionListener() {
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			public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
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				boolean handled = false;
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				if(actionId == EditorInfo.IME_ACTION_SEND) {
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					commitText();
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					handled = true;
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				}
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				return handled;
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			}
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		});
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		return view;
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	}
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	@Override
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	public void onDestroy() {
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		super.onDestroy();
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		getActivity().unbindService(serviceConnection);
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	}
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    private ServiceConnection serviceConnection = new ServiceConnection() {
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        public void onServiceConnected(ComponentName className, IBinder binder) {
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        	Log.d("LobbyChatFragment", "netconn received");
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        	netconn = ((NetplayBinder) binder).getNetconn();
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        	netconn.lobbyLog.observe(observer);
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        }
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        public void onServiceDisconnected(ComponentName className) {
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        	// TODO navigate away
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        	netconn.lobbyLog.unobserve(observer);
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        	netconn = null;
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        }
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    };
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    private MessageLog.Observer observer = new MessageLog.Observer() {
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		public void textChanged(Spanned text) {
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			if(textView != null) {
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				int overhang = textView.getHeight()-scrollView.getHeight();
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				boolean followBottom = overhang<=0 || Math.abs(overhang-scrollView.getScrollY())<5;
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				textView.setText(text);
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				if(followBottom) {
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					scrollDown();
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				}
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			}
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		}
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	};
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}