AddProximityAlertActivity.java

/*
 * Copyright (C) 2011 - 2013 Niall 'Rivernile' Scott
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors or contributors be held liable for
 * any damages arising from the use of this software.
 *
 * The aforementioned copyright holder(s) hereby grant you a
 * non-transferrable right to use this software for any purpose (including
 * commercial applications), and to modify it and redistribute it, subject to
 * the following conditions:
 *
 *  1. This notice may not be removed or altered from any file it appears in.
 *
 *  2. Any modifications made to this software, except those defined in
 *     clause 3 of this agreement, must be released under this license, and
 *     the source code of any modifications must be made available on a
 *     publically accessible (and locateable) website, or sent to the
 *     original author of this software.
 *
 *  3. Software modifications that do not alter the functionality of the
 *     software but are simply adaptations to a specific environment are
 *     exempt from clause 2.
 */

package uk.org.rivernile.edinburghbustracker.android;

import android.content.ActivityNotFoundException;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.MenuItem;
import uk.org.rivernile.android.utils.NavigationUtils;
import uk.org.rivernile.edinburghbustracker.android.fragments.dialogs
        .ProximityLimitationsDialogFragment;
import uk.org.rivernile.edinburghbustracker.android.fragments.general
        .AddProximityAlertFragment;

/**
 * This Activity hosts a AddProximityAlertFragment which lets users add a new
 * bus stop proximity alert.
 * 
 * @author Niall Scott
 * @see AddProximityAlertFragment
 */
public class AddProximityAlertActivity extends ActionBarActivity
        implements AddProximityAlertFragment.Callbacks {
    
    /** The stopCode argument. */
    public static final String ARG_STOPCODE =
            AddProximityAlertFragment.ARG_STOPCODE;
    
    private static final String DIALOG_PROX_ALERT_LIMITATIONS =
            "proxLimitationsDialog";
    
    /**
     * {@inheritDoc}
     */
    @Override
    public void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.single_fragment_container);
        
        // Only add the fragment if there was no previous instance of this
        // Activity, otherwise this fragment will appear multiple times.
        if(savedInstanceState == null) {
            final AddProximityAlertFragment fragment =
                    AddProximityAlertFragment.newInstance(getIntent()
                            .getStringExtra(ARG_STOPCODE));

            getSupportFragmentManager().beginTransaction()
                    .add(R.id.fragmentContainer, fragment).commit();
        }
    }
    
    /**
     * {@inheritDoc}
     */
    @Override
    public boolean onOptionsItemSelected(final MenuItem item) {
        switch(item.getItemId()) {
            case android.R.id.home:
                NavigationUtils
                        .navigateUpOnActivityWithMultipleEntryPoints(this);
                return true;
            default:
                return super.onOptionsItemSelected(item);
        }
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void onShowProximityAlertLimitations() {
        new ProximityLimitationsDialogFragment()
                .show(getSupportFragmentManager(),
                        DIALOG_PROX_ALERT_LIMITATIONS);
    }
    
    /**
     * {@inheritDoc}
     */
    @Override
    public void onShowGpsPreferences() {
        try {
            startActivity(AddProximityAlertFragment.LOCATION_SETTINGS_INTENT);
        } catch (ActivityNotFoundException e) {
            // Fail silently.
        }
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void onProximityAlertAdded() {
        finish();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void onCancelAddProximityAlert() {
        finish();
    }
}