OpeningHoursDetailFragment.java

package de.tum.in.tumcampusapp.fragments;

import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.widget.SimpleCursorAdapter;
import android.support.v4.widget.SimpleCursorAdapter.ViewBinder;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.text.method.LinkMovementMethod;
import android.text.util.Linkify;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import java.util.regex.Pattern;

import de.tum.in.tumcampusapp.R;
import de.tum.in.tumcampusapp.activities.OpeningHoursDetailActivity;
import de.tum.in.tumcampusapp.activities.OpeningHoursListActivity;
import de.tum.in.tumcampusapp.auxiliary.Const;
import de.tum.in.tumcampusapp.auxiliary.Utils;
import de.tum.in.tumcampusapp.managers.OpenHoursManager;

/**
 * A fragment representing a single Item detail screen. This fragment is either
 * contained in a {@link OpeningHoursListActivity} in two-pane mode (on tablets)
 * or a {@link OpeningHoursDetailActivity} on handsets.
 * <p/>
 * NEEDS: ARG_ITEM_ID and ARG_ITEM_CONTENT set in arguments
 */
public class OpeningHoursDetailFragment extends Fragment implements ViewBinder {
    public static final String ARG_ITEM_ID = "item_id";
    public static final String ARG_ITEM_CONTENT = "item_content";
    public static final String TWO_PANE = "two_pane";
    private static final Pattern COMPILE = Pattern.compile("\\\\n");

    private int mItemId;
    private String mItemContent;

    /**
     * Mandatory empty constructor for the fragment manager to instantiate the
     * fragment (e.g. upon screen orientation changes).
     */
    public OpeningHoursDetailFragment() {
        // NOP
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        if (getArguments().containsKey(ARG_ITEM_ID)) {
            mItemId = getArguments().getInt(ARG_ITEM_ID);
            mItemContent = getArguments().getString(ARG_ITEM_CONTENT);
        }
        if (getArguments().containsKey(TWO_PANE) && !getArguments().getBoolean(TWO_PANE)) {
            getActivity().setTitle(mItemContent);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_item_detail, container, false);

        // click on category in list
        OpenHoursManager lm = new OpenHoursManager(getActivity());
        String[] categories = {"library", "info", "cafeteria_gar", "cafeteria_grh", "cafeteria", "cafeteria_pas", "cafeteria_wst"};
        Cursor c = lm.getAllHoursFromDb(categories[mItemId]);

        RecyclerView recyclerView = (RecyclerView) rootView.findViewById(R.id.fragment_item_detail_recyclerview);
        recyclerView.setAdapter(new OpeningHoursDetailAdapter(c));
        final LinearLayoutManager layoutManager = new LinearLayoutManager(getContext());
        layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
        recyclerView.setLayoutManager(layoutManager);
        recyclerView.setHasFixedSize(true);

        return rootView;
    }

    /**
     * change presentation of locations in the list
     */
    @Override
    public boolean setViewValue(View view, Cursor c, int index) {
        if (view.getId() == android.R.id.text2) {
            String transport = c.getString(c.getColumnIndex(Const.TRANSPORT_COLUMN));
            String address = c.getString(c.getColumnIndex(Const.ADDRESS_COLUMN));
            String hours = c.getString(c.getColumnIndex(Const.HOURS_COLUMN));
            String remark = c.getString(c.getColumnIndex(Const.REMARK_COLUMN));
            String room = c.getString(c.getColumnIndex(Const.ROOM_COLUMN));

            StringBuilder sb = new StringBuilder(hours).append('\n').append(address);
            if (!room.isEmpty()) {
                sb.append(", ").append(room);
            }
            if (!transport.isEmpty()) {
                sb.append(" (").append(transport).append(')');
            }
            if (!remark.isEmpty()) {
                sb.append('\n').append(COMPILE.matcher(remark).replaceAll("\n"));
            }
            TextView tv = (TextView) view;
            tv.setText(sb.toString());

            // link email addresses and phone numbers (e.g. 089-123456)
            Linkify.addLinks(tv, Linkify.EMAIL_ADDRESSES);
            Linkify.addLinks(tv, Pattern.compile("[0-9-]{6,}"), "tel:");
            return true;
        } else if (view.getId() == R.id.text3) {
            StringBuilder url = new StringBuilder(c.getString(c.getColumnIndex(Const.URL_COLUMN)));
            TextView tv = (TextView) view;
            if (url.toString().isEmpty()) {
                tv.setVisibility(View.GONE);
            } else {
                url.insert(0, "<a href=\"").append("\">").append(getString(R.string.website)).append("</a>");
                tv.setMovementMethod(LinkMovementMethod.getInstance());
                tv.setText(Utils.fromHtml(url.toString()));
            }
            return true;
        }
        return false;
    }

    private class OpeningHoursDetailAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
        final SimpleCursorAdapter cursorAdapter;

        OpeningHoursDetailAdapter(Cursor c) {
            cursorAdapter = new SimpleCursorAdapter(getActivity(),
                    R.layout.two_line_list_item, c, c.getColumnNames(),
                    new int[]{android.R.id.text1, android.R.id.text2, R.id.text3}, 0) {

                @Override
                public boolean isEnabled(int position) {
                    // disable onclick
                    return false;
                }
            };

            cursorAdapter.setViewBinder(OpeningHoursDetailFragment.this);
        }

        @Override
        public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
            View v = cursorAdapter.newView(getContext(), cursorAdapter.getCursor(), parent);
            return new RecyclerView.ViewHolder(v) {
            };
        }

        @Override
        public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
            cursorAdapter.getCursor().moveToPosition(position);
            cursorAdapter.bindView(holder.itemView, getContext(), cursorAdapter.getCursor());
        }

        @Override
        public int getItemCount() {
            return cursorAdapter.getCount();
        }
    }
}