src/com/savoirfairelinux/sflphone/client/CallElementList.java

/*
 *  Copyright (C) 2004-2012 Savoir-Faire Linux Inc.
 *
 *  Author: Adrien Beraud <adrien.beraud@gmail.com>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *  Additional permission under GNU GPL version 3 section 7:
 *
 *  If you modify this program, or any covered work, by linking or
 *  combining it with the OpenSSL project's OpenSSL library (or a
 *  modified version of that library), containing parts covered by the
 *  terms of the OpenSSL or SSLeay licenses, Savoir-Faire Linux Inc.
 *  grants you additional permission to convey the resulting work.
 *  Corresponding Source for a non-source form of such a combination
 *  shall include the source code for the parts of OpenSSL used as well
 *  as that of the covered work.
 */
package com.savoirfairelinux.sflphone.client;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import android.app.ListFragment;
import android.app.LoaderManager;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.Context;
import android.content.CursorLoader;
import android.content.Loader;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.provider.*;
import android.provider.ContactsContract.CommonDataKinds;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.CommonDataKinds.SipAddress;
import android.provider.ContactsContract.Contacts;
import android.text.TextUtils;
import android.util.Log;
import android.view.*;
import android.widget.*;
import android.widget.SearchView.OnQueryTextListener;

import com.savoirfairelinux.sflphone.R;

/**
 * Main list of Call Elements.
 * We don't manage contacts ourself so they are
 */
public class CallElementList extends ListFragment implements OnQueryTextListener, LoaderManager.LoaderCallbacks<Cursor>
{
	CursorAdapter mAdapter;
	String mCurFilter;

	// These are the Contacts rows that we will retrieve.
	static final String[] CONTACTS_SUMMARY_PROJECTION = new String[] { Contacts._ID, Contacts.DISPLAY_NAME,
																		Contacts.PHOTO_ID,
																		Contacts.LOOKUP_KEY };

	static final String[] CONTACTS_PHONES_PROJECTION = new String[] { Phone.NUMBER, Phone.TYPE };
	static final String[] CONTACTS_SIP_PROJECTION = new String[] { SipAddress.SIP_ADDRESS, SipAddress.TYPE };

	/**
	 * Runnable that fill information in a contact card asynchroniously.
	 */
	public static class InfosLoader implements Runnable
	{
		private View view;
		private long cid;
		private ContentResolver cr;

		public InfosLoader(Context context, View element, long contact_id)
		{
			cid = contact_id;
			cr = context.getContentResolver();
			view = element;
		}

		public static Bitmap loadContactPhoto(ContentResolver cr, long  id) {
		    Uri uri = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, id);
		    InputStream input = ContactsContract.Contacts.openContactPhotoInputStream(cr, uri);
		    if (input == null) {
		        return null;
		    }
		    return BitmapFactory.decodeStream(input);
		}
		
		@Override
		public void run()
		{
			final Bitmap photo_bmp = loadContactPhoto(cr, cid);

			Cursor phones = cr.query(	CommonDataKinds.Phone.CONTENT_URI,
										CONTACTS_PHONES_PROJECTION,
										CommonDataKinds.Phone.CONTACT_ID + " = ?",
										new String[] { Long.toString(cid) },
										null);
			final List<String> numbers = new ArrayList<String>();
			while (phones.moveToNext()) {
				String number = phones.getString(phones.getColumnIndex(CommonDataKinds.Phone.NUMBER));
				//int type = phones.getInt(phones.getColumnIndex(CommonDataKinds.Phone.TYPE));
				numbers.add(number);
			}
			phones.close();
			// TODO: same for SIP adresses.

			final Bitmap bmp = photo_bmp;
			view.post(new Runnable()
			{
				@Override
				public void run()
				{
					ImageView photo_view = (ImageView) view.findViewById(R.id.photo);
					TextView phones_txt = (TextView) view.findViewById(R.id.phones);

					if (photo_bmp != null) {
						photo_view.setImageBitmap(bmp);
						photo_view.setVisibility(View.VISIBLE);
					} else {
						photo_view.setVisibility(View.GONE);
					}

					if (numbers.size() > 0) {
						String phonestxt = numbers.get(0);
						for (int i = 1, n = numbers.size(); i < n; i++)
							phonestxt += "\n" + numbers.get(i);
						phones_txt.setText(phonestxt);
						phones_txt.setVisibility(View.VISIBLE);
					} else
						phones_txt.setVisibility(View.GONE);
				}
			});

		}

	}

	/**
	 * A CursorAdapter that creates and update call elements using corresponding contact infos.
	 * TODO: handle contact list separatly to allow showing synchronized contacts on Call cards with multiple contacts etc.
	 */
	class CallElementAdapter extends CursorAdapter
	{
		private ExecutorService infos_fetcher = Executors.newCachedThreadPool();

		public CallElementAdapter(Context context, Cursor c)
		{
			super(context, c, 0);
		}

		@Override
		public View newView(Context context, Cursor cursor, ViewGroup parent)
		{
			LayoutInflater inflater = LayoutInflater.from(context);
			View v = inflater.inflate(R.layout.call_element, parent, false);
			bindView(v, context, cursor);
			return v;
		}

		@Override
		public void bindView(final View view, Context context, Cursor cursor)
		{
			final long contact_id = cursor.getLong(cursor.getColumnIndex(BaseColumns._ID));
			final String display_name = cursor.getString(cursor.getColumnIndex(Contacts.DISPLAY_NAME));
			//final long photo_uri_string = cursor.getLong(cursor.getColumnIndex(Contacts.PHOTO_ID));
			//final String photo_uri_string = cursor.getString(cursor.getColumnIndex(Contacts.PHOTO_THUMBNAIL_URI));

			TextView display_name_txt = (TextView) view.findViewById(R.id.display_name);
			display_name_txt.setText(display_name);
			
			ImageView photo_view = (ImageView) view.findViewById(R.id.photo);
			photo_view.setVisibility(View.GONE);
			
			infos_fetcher.execute(new InfosLoader(getActivity(), view, contact_id));
		}

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

		// Give some text to display if there is no data.  In a real
		// application this would come from a resource.
		//setEmptyText("No phone numbers");

		// We have a menu item to show in action bar.
		setHasOptionsMenu(true);

		// Create an empty adapter we will use to display the loaded data.
		mAdapter = new CallElementAdapter(getActivity(), null);
		setListAdapter(mAdapter);

		// Start out with a progress indicator.
		//setListShown(false);

		// Prepare the loader.  Either re-connect with an existing one,
		// or start a new one.
		getLoaderManager().initLoader(0, null, this);
	}

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
	    //LayoutInflater newInflater = inflater.cloneInContext(new ContextThemeWrapper(getActivity(), R.style.));
	    View inflatedView = inflater.inflate(R.layout.call_element_list, container, false);
	    return inflatedView;
	}
	
	@Override
	public void onCreateOptionsMenu(Menu menu, MenuInflater inflater)
	{
		// Place an action bar item for searching.
		MenuItem item = menu.add("Search");
		//item.setIcon(android.R.drawable.ic_menu_search);
		item.setIcon(R.drawable.ic_menu_search);
		item.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM | MenuItem.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW);
		SearchView sv = new SearchView(getActivity());
		sv.setOnQueryTextListener(this);
		item.setActionView(sv);
	}

	@Override
	public boolean onQueryTextChange(String newText)
	{
		// Called when the action bar search text has changed.  Update
		// the search filter, and restart the loader to do a new query
		// with this filter.
		String newFilter = !TextUtils.isEmpty(newText) ? newText : null;
		// Don't do anything if the filter hasn't actually changed.
		// Prevents restarting the loader when restoring state.
		if (mCurFilter == null && newFilter == null) { return true; }
		if (mCurFilter != null && mCurFilter.equals(newFilter)) { return true; }
		mCurFilter = newFilter;
		getLoaderManager().restartLoader(0, null, this);
		return true;
	}

	@Override
	public boolean onQueryTextSubmit(String query)
	{
		// Don't care about this.
		return true;
	}

	@Override
	public void onListItemClick(ListView l, View v, int position, long id)
	{
		// Insert desired behavior here.
		Log.i("FragmentComplexList", "Item clicked: " + id);
	}

	@Override
	public Loader<Cursor> onCreateLoader(int id, Bundle args)
	{

		//return new CursorLoader(getActivity(), CommonDataKinds.Phone.CONTENT_URI, null,null,null, null);

		// This is called when a new Loader needs to be created.  This
		// sample only has one Loader, so we don't care about the ID.
		// First, pick the base URI to use depending on whether we are
		// currently filtering.
		Uri baseUri;

		if (mCurFilter != null) {
			baseUri = Uri.withAppendedPath(Contacts.CONTENT_FILTER_URI, Uri.encode(mCurFilter));
		} else {
			baseUri = Contacts.CONTENT_URI;
		}

		// Now create and return a CursorLoader that will take care of
		// creating a Cursor for the data being displayed.
		String select = "((" + Contacts.DISPLAY_NAME
						+ " NOTNULL) AND ("
						+ Contacts.HAS_PHONE_NUMBER
						+ "=1) AND ("
						+ Contacts.DISPLAY_NAME
						+ " != '' ))";
		//String select = "((" + Contacts.DISPLAY_NAME + " NOTNULL) AND (" + Contacts.DISPLAY_NAME + " != '' ))";

		return new CursorLoader(getActivity(),
								baseUri,
								CONTACTS_SUMMARY_PROJECTION,
								select,
								null,
								Contacts.DISPLAY_NAME + " COLLATE LOCALIZED ASC");
	}

	@Override
	public void onLoadFinished(Loader<Cursor> loader, Cursor data)
	{
		// Swap the new cursor in.  (The framework will take care of closing the
		// old cursor once we return.)
		mAdapter.swapCursor(data);

		// The list should now be shown.
		/*
		if (isResumed()) {
			setListShown(true);
		} else {
			setListShownNoAnimation(true);
		}*/
	}

	@Override
	public void onLoaderReset(Loader<Cursor> loader)
	{
		// This is called when the last Cursor provided to onLoadFinished()
		// above is about to be closed.  We need to make sure we are no
		// longer using it.
		mAdapter.swapCursor(null);
	}

}