<?php
/*
     text_plain_DocumentHandler.php, handler for plain text files
     Copyright (C) 2004 Arend van Beelen, Auton Rijnsburg

     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 2 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.,
     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

     For any questions, comments or whatever, you may mail me at: hide@address.com
*/

require_once('Config.php');
require_once('DocumentHandler.php');
require_once('Forms.php');
require_once('GUI.php');
require_once('Search.php');
require_once('URI.php');

class text_plain_DocumentHandler extends DocumentHandler
{
	public static function view(Container $parent, $uri)
	{
		$contents = URI::fileGetContents($uri);
		if($contents === false)
		{
			new Paragraph($parent, i18n('Sorry, the document could not be opened.'));
			return;
		}

		$lines = '';
		for($i = 0; $i < strlen($contents); $i++)
		{
			for($j = 0; $j < 80 && $i + $j < strlen($contents); $j++)
			{
				if($contents{$i + $j} == "\n")
				{
					break;
				}
			}
			if($j == 80)
			{
				for($j = 79; $j >= 0; $j--)
				{
					if(ctype_space($contents{$i + $j}))
					{
						break;
					}
				}
				if($j == -1)
				{
					$j = 79;
				}
				$line = substr($contents, $i, $j + 1)."\n";
			}
			else
			{
				$line = substr($contents, $i, $j + 1);
			}
			$lines .= htmlspecialchars($line);
			$i += $j;
		}

		new RawWidget($parent, "<textblock>\n$lines\n</textblock>\n");
	}

	public static function supportsEditing()
	{
		return true;
	}

	public static function edit(Container $parent, $id, $uri)
	{
		$text = ($uri == '' ? '' : URI::fileGetContents($uri));

		$textArea = new TextArea($parent, $id);
		$textArea->setValue(htmlspecialchars($text));
		$textArea->setRows(24);
		$textArea->setColumns(80);
	}

	public static function save($id, $uri)
	{
		$document = Config::request($id);

		if(($fp = URI::fopen($uri, 'w')) === false)
		{
			return false;
		}

		URI::fwrite($fp, $document);
		URI::fclose($fp);

		return true;
	}

	public static function supportsIndexing()
	{
		return true;
	}

	public static function index($documentId, $uri)
	{
		parent::index($documentId, $uri);

		$lines = URI::file($uri);
		if($lines === false)
		{
			return;
		}

		$search = Search::instance();
		foreach($lines as $line)
		{
			$search->indexText($documentId, $line, 1);
		}
	}
}

?>