org.openpilot_nonag.androidgcs.fragments.ObjectManagerFragment.java Source code

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Here is the source code for org.openpilot_nonag.androidgcs.fragments.ObjectManagerFragment.java

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/**
 ******************************************************************************
 * @file       ObjectManagerFragment.java
 * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2012.
 * @brief      Base class for all fragments that use the UAVObjectManager.  This
 *             supports all the extensions the ObjectManagerActivity does, namely
 *             access to the UAVObjectManager and callbacks in the UI thread for
 *             object updates.
 * @see        The GNU Public License (GPL) Version 3
 *
 *****************************************************************************/
/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package org.openpilot_nonag.androidgcs.fragments;

import java.util.Locale;

import org.openpilot_nonag.androidgcs.ObjectManagerActivity;
import org.openpilot_nonag.uavtalk.UAVObject;
import org.openpilot_nonag.uavtalk.UAVObjectManager;

import android.app.Activity;
import android.content.Intent;
import android.speech.tts.TextToSpeech;
//import android.app.Fragment;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.util.Log;

public class ObjectManagerFragment extends Fragment {

    private static final String TAG = ObjectManagerFragment.class.getSimpleName();
    private static final int LOGLEVEL = 0;
    private static boolean WARN = LOGLEVEL > 1;
    private static final boolean DEBUG = LOGLEVEL > 0;

    UAVObjectManager objMngr;
    TextToSpeech tts = null;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (DEBUG)
            Log.d(TAG, "Created an ObjectManagerFragment");
        // For an activity this registers against the telemetry service intents.  Fragments must be notified by their
        // parent activity

        // TextToSpeech
        Intent checkIntent = new Intent();
        checkIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);

        tts = new TextToSpeech(getActivity().getApplicationContext(), new TextToSpeech.OnInitListener() {
            private int mCallCount = 0; // trying to investigate potential infinite loops

            @Override
            public void onInit(int status) {
                if ((mCallCount % 100) == 1) {
                    // report this
                }
                mCallCount++;
            }
        });

        tts.setLanguage(Locale.US);

    }

    /**
     * Attach to the parent activity so it can notify us when the connection
     * changed
     */
    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        if (DEBUG)
            Log.d(TAG, "onAttach");

        ObjectManagerActivity castActivity = null;
        try {
            castActivity = (ObjectManagerActivity) activity;
        } catch (ClassCastException e) {
            throw new android.app.Fragment.InstantiationException(
                    "Attaching a ObjectManagerFragment to an activity failed because the parent activity is not a ObjectManagerActivity",
                    e);
        }
        castActivity.addOnConnectionListenerFragment(this);
    }

    // The below methods should all be called by the parent activity at the appropriate times
    public void onOPConnected(UAVObjectManager objMngr) {
        this.objMngr = objMngr;
        if (DEBUG)
            Log.d(TAG, "onOPConnected");
    }

    public void onOPDisconnected() {
        objMngr = null;
        if (DEBUG)
            Log.d(TAG, "onOPDisconnected");
    }

    /**
     * Called whenever any objects subscribed to via registerObjects
     */
    public void objectUpdated(UAVObject obj) {

    }

    /**
     * Register on the activities object monitor handler so that updates
     * occur within that UI thread.  No need to maintain a handler for
     * each fragment.
     */
    protected void registerObjectUpdates(UAVObject object) {
        ((ObjectManagerActivity) this.getActivity()).registerObjectUpdates(object, this);
    }

}