SituationDialogFragment.java

/*
 * Copyright (C) 2012 Paul Watts (paulcwatts@gmail.com)
 *
 * 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 org.onebusaway.android.ui;

import org.onebusaway.android.R;
import org.onebusaway.android.io.ObaAnalytics;
import org.onebusaway.android.io.elements.ObaSituation;
import org.onebusaway.android.provider.ObaContract;
import org.onebusaway.android.util.UIUtils;

import android.app.Dialog;
import android.content.ContentValues;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.design.widget.Snackbar;
import android.support.v4.app.DialogFragment;
import android.support.v7.app.AlertDialog;
import android.text.TextUtils;
import android.text.style.ClickableSpan;
import android.view.View;
import android.widget.TextView;

/**
 * Displays service alerts (i.e., situations) is a dialog
 */
public class SituationDialogFragment extends DialogFragment {

    public static final String TAG = "SituationFragment";

    public static final String ID = ".ID";

    public static final String TITLE = ".Title";

    public static final String DESCRIPTION = ".Description";

    public static final String URL = ".Url";

    interface Listener {

        /**
         * Called when this dialog is dismissed
         *
         * @param isAlertHidden true if the service alert was hidden by the user, false if it was
         *                      not
         */
        void onDismiss(boolean isAlertHidden);

        /**
         * Called when the user taps the "Undo" snackbar for hiding an alert
         */
        void onUndo();
    }

    private Listener mListener;

    /**
     * Helper method to show this dialog
     */
    public static SituationDialogFragment newInstance(ObaSituation situation) {
        Bundle args = new Bundle();
        args.putString(ID, situation.getId());
        args.putString(TITLE, situation.getSummary());
        // We don't use the stop name map here...we want the actual stop name.
        args.putString(DESCRIPTION, situation.getDescription());
        if (!TextUtils.isEmpty(situation.getUrl())) {
            args.putString(URL, situation.getUrl());
        }

        // Create the list fragment and add it as our sole content.
        SituationDialogFragment dialog = new SituationDialogFragment();
        dialog.setArguments(args);
        return dialog;
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        Bundle args = getArguments();
        final String situationId = args.getString(ID);

        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity())
                .setView(R.layout.situation)
                .setPositiveButton(R.string.hide, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int which) {
                        Dialog dialog = (Dialog) dialogInterface;

                        // Update the database to indicate that this alert has been hidden
                        ObaContract.ServiceAlerts
                                .insertOrUpdate(situationId, new ContentValues(), false,
                                        true);

                        // Show the UNDO snackbar
                        Snackbar.make(getActivity().findViewById(R.id.fragment_arrivals_list),
                                R.string.alert_hidden_snackbar_text, Snackbar.LENGTH_SHORT)
                                .setAction(R.string.alert_hidden_snackbar_action,
                                        new View.OnClickListener() {
                                            @Override
                                            public void onClick(View v) {
                                                ObaContract.ServiceAlerts
                                                        .insertOrUpdate(situationId,
                                                                new ContentValues(), false,
                                                                false);
                                                if (mListener != null) {
                                                    mListener.onUndo();
                                                }
                                            }
                                        }).show();
                        dialog.dismiss();
                        if (mListener != null) {
                            mListener.onDismiss(true);
                        }
                    }
                })
                .setNegativeButton(R.string.close, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                        if (mListener != null) {
                            mListener.onDismiss(false);
                        }
                    }
                });

        final android.support.v7.app.AlertDialog dialog = builder.create();
        dialog.show();

        // Set the title, description, and URL (if provided)
        TextView title = (TextView) dialog.findViewById(R.id.alert_title);
        title.setText(args.getString(TITLE));

        TextView desc = (TextView) dialog.findViewById(R.id.alert_description);
        desc.setText(args.getString(DESCRIPTION));

        TextView urlView = (TextView) dialog.findViewById(R.id.alert_url);

        // Remove any previous clickable spans just to be safe
        UIUtils.removeAllClickableSpans(urlView);

        final String url = args.getString(URL);
        if (!TextUtils.isEmpty(url)) {
            urlView.setVisibility(View.VISIBLE);

            ClickableSpan urlClick = new ClickableSpan() {
                public void onClick(View v) {
                    getActivity().startActivity(
                            new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
                }
            };
            UIUtils.setClickableSpan(urlView, urlClick);
        } else {
            urlView.setVisibility(View.GONE);
        }

        // Update the database to indicate that this alert has been read
        ObaContract.ServiceAlerts
                .insertOrUpdate(args.getString(ID), new ContentValues(), true, null);

        return dialog;
    }

    public Listener getListener() {
        return mListener;
    }

    public void setListener(Listener listener) {
        mListener = listener;
    }

    @Override
    public void onStart() {
        super.onStart();
        ObaAnalytics.reportFragmentStart(this);
    }
}