/android/import-contacts

/*

 * ConfigureVCF.java

 *

 * Copyright (C) 2009 Tim Marston <tim@ed.am>

 *

 * This file is part of the Import Contacts program (hereafter referred

 * to as "this program"). For more information, see

 * http://ed.am/dev/android/import-contacts

 *

 * 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, see <http://www.gnu.org/licenses/>.

 */

package am.ed.importcontacts;

import java.io.IOException;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.DialogInterface;

import android.content.SharedPreferences;

import android.os.Bundle;

import android.os.Environment;

import android.view.LayoutInflater;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

public class ConfigureVCF extends WizardActivity

{

	public final static int DIALOG_FILEORDIR = 1;

	public final static int DIALOG_FILECHOOSER = 2;

	public final static int DIALOG_NOSDCARD = 3;

	private FileChooser _file_chooser = null;

	// the sdcard path prefix

	private String _sdcard_prefix;

	// the save path

	private String _path;

	// was the dialog closed normally?

	private boolean _ok = false;

	// for the fileordir dialog, was file selected?

	boolean _ok_file;

	// reference to the dialog

	Dialog _dialog;

	@Override

	protected void onCreate( Bundle saved_instance_state )

	{

		setContentView( R.layout.configure_vcf );

		super.onCreate( saved_instance_state );

		setNextActivity( Merge.class );

		// get sdcard prefix

		_sdcard_prefix = getSdCardPathPrefix();

		if( _sdcard_prefix == null )

			showDialog( DIALOG_NOSDCARD );

		// create file chooser

		_file_chooser = new FileChooser( this );

		String[] extensions = { "vcf" };

		_file_chooser.setExtensions( extensions );

		_file_chooser.setDismissListener(

			new DialogInterface.OnDismissListener() {

				public void onDismiss( DialogInterface dialog )

				{

					if( _file_chooser.getOk() ) {

						_path = _file_chooser.getPath();

						updatePathButton();

					}

				}

			} );

		if( _sdcard_prefix != null )

			_file_chooser.setPathPrefix( _sdcard_prefix );

		// set up browser button

		Button button = (Button)findViewById( R.id.path );

		button.setOnClickListener( new View.OnClickListener() {

			public void onClick( View view ) {

				onBrowse();

			}

		} );

	}

	private void onBrowse()

	{

		showDialog( DIALOG_FILEORDIR );

	}

	private void showBrowseDialog()

	{

		// set a path for this incantation

		_file_chooser.setMode(

			_ok_file? FileChooser.MODE_FILE : FileChooser.MODE_DIR );

		_file_chooser.setPath( _path );

		// show dialog

		showDialog( DIALOG_FILECHOOSER );

	}

	static protected String getSdCardPathPrefix()

	{

		// check sdcard status

		String state = Environment.getExternalStorageState();

		if( !Environment.MEDIA_MOUNTED.equals( state ) &&

			!Environment.MEDIA_MOUNTED_READ_ONLY.equals( state ) )

		{

			// no sdcard mounted

			return null;

		}

		// get sdcard path

		String sdcard_path;

		try {

			sdcard_path = Environment.getExternalStorageDirectory()

				.getCanonicalPath();

			if( sdcard_path.charAt( sdcard_path.length() - 1 ) == '/' )

				sdcard_path =

					sdcard_path.substring( 0, sdcard_path.length() - 1 );

		}

		catch( IOException e ) {

			sdcard_path = null;

		}

		return sdcard_path;

	}

	protected void updatePathButton()

	{

		Button path_button = (Button)findViewById( R.id.path );

		if( _sdcard_prefix != null )

			path_button.setText(

				_file_chooser.prettyPrint( _sdcard_prefix + _path, true ) );

		TextView location_text = (TextView)findViewById( R.id.location );

		location_text.setText( getString( _path.endsWith( "/" )?

			R.string.vcf_location_dir : R.string.vcf_location_file ) );

	}

	@Override

	protected void onPause() {

		super.onPause();

		SharedPreferences.Editor editor = getSharedPreferences().edit();

		editor.putString( "location", _path );

		editor.commit();

	}

	@Override

	protected void onResume() {

		super.onResume();

		SharedPreferences prefs = getSharedPreferences();

		// location

		_path = prefs.getString( "location", "/" );

		updatePathButton();

	}

	@Override

	protected Dialog onCreateDialog( int id )

	{

		Dialog ret = null;

		switch( id )

		{

		case DIALOG_FILEORDIR:

			// custom layout in an AlertDialog

			LayoutInflater factory = LayoutInflater.from( this );

			final View dialogView = factory.inflate(

				R.layout.fileordir, null );

			// wire up buttons

			( (Button)dialogView.findViewById(  R.id.file ) )

				.setOnClickListener( new View.OnClickListener() {

					public void onClick( View view ) {

						_ok = true;

						_ok_file = true;

						_dialog.dismiss();

					}

				} );

			( (Button)dialogView.findViewById(  R.id.dir ) )

			.setOnClickListener( new View.OnClickListener() {

				public void onClick( View view ) {

					_ok = true;

					_ok_file = false;

					_dialog.dismiss();

				}

			} );

			_dialog = ret = new AlertDialog.Builder( this )

				.setTitle( "Do you want to?" )

				.setView( dialogView )

				.create();

			ret.setOnDismissListener(

				new DialogInterface.OnDismissListener() {

					public void onDismiss( DialogInterface dialog )

					{

						if( _ok ) showBrowseDialog();

					}

				} );

			break;

		case DIALOG_FILECHOOSER:

			ret = _file_chooser.onCreateDialog();

			break;

		case DIALOG_NOSDCARD:

			ret = new AlertDialog.Builder( this )

			.setIcon( R.drawable.alert_dialog_icon )

			.setTitle( R.string.error_title )

			.setMessage( R.string.error_nosdcard )

			.setPositiveButton( R.string.error_ok,

				new DialogInterface.OnClickListener() {

					public void onClick(DialogInterface dialog,

						int whichButton)

					{

						// close the whole app!

						setResult( RESULT_OK );

						finish();

					}

				} )

			.create();

			break;

		}

		return ret;

	}

	@Override

	protected void onPrepareDialog( int id, Dialog dialog )

	{

		switch( id )

		{

		case DIALOG_FILEORDIR:

			_ok = false;

			break;

		case DIALOG_FILECHOOSER:

			_file_chooser.onPrepareDialog( this, dialog );

			break;

		}

		super.onPrepareDialog( id, dialog );

	}

}