ch.bfh.instacircle.MessageSendFragment.java Source code

Introduction

Here is the source code for ch.bfh.instacircle.MessageSendFragment.java

Source

/*
 *  UniCrypt Cryptographic Library
 *  Copyright (c) 2013 Berner Fachhochschule, Biel, Switzerland.
 *  All rights reserved.
 *
 *  Distributable under GPL license.
 *  See terms of license at gnu.org.
 *  
 */

package ch.bfh.instacircle;

import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.content.LocalBroadcastManager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import ch.bfh.instacircle.db.NetworkDbHelper;

/**
 * This class implements the fragment which displays the input box and send
 * button for composing new messages
 * 
 * @author Juerg Ritter (rittj1@bfh.ch)
 */
public class MessageSendFragment extends Fragment implements OnClickListener {

    private static final String TAG = MessageSendFragment.class.getSimpleName();
    private static final String PREFS_NAME = "network_preferences";
    private NetworkDbHelper dbHelper;
    private boolean broadcast = true;
    private String ipAddress = null;

    private Button btnSend;
    private EditText et;

    /*
     * (non-Javadoc)
     * 
     * @see android.support.v4.app.Fragment#onCreate(android.os.Bundle)
     */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * android.support.v4.app.Fragment#onCreateView(android.view.LayoutInflater,
     * android.view.ViewGroup, android.os.Bundle)
     */
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        // apply the layout
        View rootView = inflater.inflate(R.layout.fragment_message_send, container, false);

        // extract the button and the textfield
        btnSend = (Button) rootView.findViewById(R.id.send_button);
        et = (EditText) getActivity().findViewById(R.id.message_text);
        btnSend.setOnClickListener(this);
        dbHelper = NetworkDbHelper.getInstance(getActivity());

        // determining if we are dealing with broadcast or unicast messages
        if (getActivity() instanceof ParticipantDetailActivity) {
            ipAddress = ((ParticipantDetailActivity) getActivity()).getIpAddress();
            broadcast = false;
        }
        return rootView;
    }

    /*
     * (non-Javadoc)
     * 
     * @see android.view.View.OnClickListener#onClick(android.view.View)
     */
    public void onClick(View view) {

        if (view == btnSend) {
            et = (EditText) getActivity().findViewById(R.id.message_text);
            String identification = getActivity().getSharedPreferences(PREFS_NAME, 0).getString("identification",
                    "N/A");

            // create new message instance
            Message message = new Message(et.getText().toString(), Message.MSG_CONTENT, identification,
                    dbHelper.getNextSequenceNumber());
            Intent intent = new Intent("messageSend");
            intent.putExtra("message", message);
            if (broadcast == false && ipAddress == null) {
                Log.w(TAG, "IP Address not set, cannot send unicast message");
            } else if (broadcast == false) {

                // pass message to service using the local broacast manager
                intent.putExtra("ipAddress", ipAddress);
                intent.putExtra("broadcast", false);
                LocalBroadcastManager.getInstance(getActivity()).sendBroadcast(intent);
            } else {

                // pass message to service using the local broacast manager
                intent.putExtra("broadcast", true);
                LocalBroadcastManager.getInstance(getActivity()).sendBroadcast(intent);
            }
            // clear the textfield
            et.setText("");

        }
    }
}