summaryrefslogtreecommitdiffstats
path: root/admin/survey/export/libs/PHPPowerPoint/Shared/XMLWriter.php
blob: da434a5761cd8b7c2e72c078fe9207ab47d8f922 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
<?php
/**
 * PHPPowerPoint
 *
 * Copyright (c) 2009 - 2010 PHPPowerPoint
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPPowerPoint
 * @package    PHPPowerPoint_Shared
 * @copyright  Copyright (c) 2009 - 2010 PHPPowerPoint (http://www.codeplex.com/PHPPowerPoint)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version    0.1.0, 2009-04-27
 */

if (!defined('DATE_W3C')) {
  define('DATE_W3C', 'Y-m-d\TH:i:sP');
}

/**
 * PHPPowerPoint_Shared_XMLWriter
 *
 * @category   PHPPowerPoint
 * @package    PHPPowerPoint_Shared
 * @copyright  Copyright (c) 2009 - 2010 PHPPowerPoint (http://www.codeplex.com/PHPPowerPoint)
 */
class PHPPowerPoint_Shared_XMLWriter {
	/** Temporary storage method */
	const STORAGE_MEMORY	= 1;
	const STORAGE_DISK		= 2;

	/**
	 * Internal XMLWriter
	 *
	 * @var XMLWriter
	 */
	private $_xmlWriter;

	/**
	 * Temporary filename
	 *
	 * @var string
	 */
	private $_tempFileName = '';

	/**
	 * Create a new PHPPowerPoint_Shared_XMLWriter instance
	 *
	 * @param int		$pTemporaryStorage			Temporary storage location
	 * @param string	$pTemporaryStorageFolder	Temporary storage folder
	 */
    public function __construct($pTemporaryStorage = self::STORAGE_MEMORY, $pTemporaryStorageFolder = './') {
    	// Create internal XMLWriter
    	$this->_xmlWriter = new XMLWriter();

    	// Open temporary storage
    	if ($pTemporaryStorage == self::STORAGE_MEMORY) {
    		$this->_xmlWriter->openMemory();
    	} else {
    		// Create temporary filename
    		$this->_tempFileName = @tempnam($pTemporaryStorageFolder, 'xml');

    		// Open storage
    		if ($this->_xmlWriter->openUri($this->_tempFileName) === false) {
    			// Fallback to memory...
    			$this->_xmlWriter->openMemory();
    		}
    	}

    	// Set default values
    	$this->_xmlWriter->setIndent(true);
    }

    /**
     * Destructor
     */
    public function __destruct() {
    	// Desctruct XMLWriter
    	unset($this->_xmlWriter);

    	// Unlink temporary files
    	if ($this->_tempFileName != '') {
    		@unlink($this->_tempFileName);
    	}
    }

    /**
     * Get written data
     *
     * @return $data
     */
    public function getData() {
    	if ($this->_tempFileName == '') {
    		return $this->_xmlWriter->outputMemory(true);
    	} else {
    		$this->_xmlWriter->flush();
    		return file_get_contents($this->_tempFileName);
    	}
    }

    /**
     * Catch function calls (and pass them to internal XMLWriter)
     *
     * @param unknown_type $function
     * @param unknown_type $args
     */
    public function __call($function, $args) {
    	try {
    		@call_user_func_array(array($this->_xmlWriter, $function), $args);
    	} catch (Exception $ex) {
    		// Do nothing!
    	}
    }

    /**
     * Fallback method for writeRaw, introduced in PHP 5.2
     *
     * @param string $text
     * @return string
     */
    public function writeRaw($text)
    {
    	if (isset($this->_xmlWriter) && is_object($this->_xmlWriter) && (method_exists($this->_xmlWriter, 'writeRaw'))) {
    		return $this->_xmlWriter->writeRaw($text);
    	}

    	return $this->text($text);
    }
}