br.com.bioscada.apps.biotracks.fragments.DeleteMarkerDialogFragment.java Source code

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Here is the source code for br.com.bioscada.apps.biotracks.fragments.DeleteMarkerDialogFragment.java

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/*
 * Copyright 2012 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package br.com.bioscada.apps.biotracks.fragments;

import android.app.Activity;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;

import com.google.android.lib.mytracks.content.MyTracksProviderUtils;

import br.com.bioscada.apps.biotracks.R;
import br.com.bioscada.apps.biotracks.content.DescriptionGeneratorImpl;
import br.com.bioscada.apps.biotracks.util.DialogUtils;

/**
 * A DialogFragment to delete marker.
 * 
 * @author Jimmy Shih
 */
public class DeleteMarkerDialogFragment extends AbstractMyTracksDialogFragment {

    /**
     * Interface for caller of this dialog fragment.
     * 
     * @author Jimmy Shih
     */
    public interface DeleteMarkerCaller {

        /**
         * Called when delete marker is done.
         */
        public void onDeleteMarkerDone();
    }

    public static final String DELETE_MARKER_DIALOG_TAG = "deleteMarkerDialog";
    private static final String KEY_MARKER_IDS = "markerIds";

    public static DeleteMarkerDialogFragment newInstance(long[] markerIds) {
        Bundle bundle = new Bundle();
        bundle.putLongArray(KEY_MARKER_IDS, markerIds);

        DeleteMarkerDialogFragment deleteMarkerDialogFragment = new DeleteMarkerDialogFragment();
        deleteMarkerDialogFragment.setArguments(bundle);
        return deleteMarkerDialogFragment;
    }

    private DeleteMarkerCaller caller;

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            caller = (DeleteMarkerCaller) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(
                    activity.toString() + " must implement " + DeleteMarkerCaller.class.getSimpleName());
        }
    }

    @Override
    protected Dialog createDialog() {
        final FragmentActivity fragmentActivity = getActivity();
        final long[] markerIds = getArguments().getLongArray(KEY_MARKER_IDS);
        int titleId;
        int messageId;
        if (markerIds.length == 1 && markerIds[0] == -1L) {
            titleId = R.string.generic_delete_all_confirm_title;
            messageId = R.string.marker_delete_all_confirm_message;
        } else {
            titleId = markerIds.length > 1 ? R.string.generic_delete_selected_confirm_title
                    : R.string.marker_delete_one_confirm_title;
            messageId = markerIds.length > 1 ? R.string.marker_delete_multiple_confirm_message
                    : R.string.marker_delete_one_confirm_message;
        }
        return DialogUtils.createConfirmationDialog(fragmentActivity, titleId, getString(messageId),
                new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        new Thread(new Runnable() {
                            @Override
                            public void run() {
                                MyTracksProviderUtils myTracksProviderUtils = MyTracksProviderUtils.Factory
                                        .get(fragmentActivity);
                                for (long markerId : markerIds) {
                                    myTracksProviderUtils.deleteWaypoint(fragmentActivity, markerId,
                                            new DescriptionGeneratorImpl(fragmentActivity));
                                }
                                caller.onDeleteMarkerDone();
                            }
                        }).start();
                    }
                });
    }
}