at.bitfire.davdroid.syncadapter.SelectCollectionsFragment.java Source code

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Here is the source code for at.bitfire.davdroid.syncadapter.SelectCollectionsFragment.java

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/*******************************************************************************
 * Copyright (c) 2014 Richard Hirner (bitfire web engineering).
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     Richard Hirner (bitfire web engineering) - initial API and implementation
 ******************************************************************************/
package at.bitfire.davdroid.syncadapter;

import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListAdapter;
import android.widget.ListView;
import at.bitfire.davdroid.R;

public class SelectCollectionsFragment extends ListFragment {
    public static final String KEY_SERVER_INFO = "server_info";

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = super.onCreateView(inflater, container, savedInstanceState);
        setHasOptionsMenu(true);
        return v;
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        setListAdapter(null);
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        final ListView listView = getListView();
        listView.setPadding(20, 30, 20, 30);

        View header = getActivity().getLayoutInflater().inflate(R.layout.select_collections_header, null);
        listView.addHeaderView(header);

        final ServerInfo serverInfo = (ServerInfo) getArguments().getSerializable(KEY_SERVER_INFO);
        final SelectCollectionsAdapter adapter = new SelectCollectionsAdapter(serverInfo);
        setListAdapter(adapter);

        listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        listView.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                int itemPosition = position - 1; // one list header view at pos. 0
                if (adapter.getItemViewType(itemPosition) == SelectCollectionsAdapter.TYPE_ADDRESS_BOOKS_ROW) {
                    // unselect all other address books
                    for (int pos = 1; pos <= adapter.getNAddressBooks(); pos++)
                        if (pos != itemPosition)
                            listView.setItemChecked(pos + 1, false);
                }

                getActivity().supportInvalidateOptionsMenu();
            }
        });
    }

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        inflater.inflate(R.menu.select_collections, menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case R.id.next:
            ServerInfo serverInfo = (ServerInfo) getArguments().getSerializable(KEY_SERVER_INFO);

            // synchronize only selected collections
            for (ServerInfo.ResourceInfo addressBook : serverInfo.getAddressBooks())
                addressBook.setEnabled(false);
            for (ServerInfo.ResourceInfo calendar : serverInfo.getCalendars())
                calendar.setEnabled(false);

            ListAdapter adapter = getListView().getAdapter();
            for (long id : getListView().getCheckedItemIds()) {
                int position = (int) id + 1; // +1 because header view is inserted at pos. 0 
                ServerInfo.ResourceInfo info = (ServerInfo.ResourceInfo) adapter.getItem(position);
                info.setEnabled(true);
            }

            // pass to "account details" fragment
            AccountDetailsFragment accountDetails = new AccountDetailsFragment();
            Bundle arguments = new Bundle();
            arguments.putSerializable(SelectCollectionsFragment.KEY_SERVER_INFO, serverInfo);
            accountDetails.setArguments(arguments);

            getFragmentManager().beginTransaction().replace(R.id.fragment_container, accountDetails)
                    .addToBackStack(null).commitAllowingStateLoss();
            break;
        default:
            return false;
        }
        return true;
    }

    // input validation

    @Override
    public void onPrepareOptionsMenu(Menu menu) {
        boolean ok = false;
        try {
            ListView listView = getListView();
            for (int i = listView.getCount() - 1; i >= 0; i--) {
                if (listView.isItemChecked(i)) {
                    ok = true;
                    break;
                }
            }
        } catch (IllegalStateException e) {
        }
        MenuItem item = menu.findItem(R.id.next);
        item.setEnabled(ok);
    }
}