[github/wallabag/wallabag.git] / inc / 3rdparty / libraries / readability / JSLikeHTMLElement.php

<?php\r
/**\r
* JavaScript-like HTML DOM Element\r
*\r
* This class extends PHP's DOMElement to allow\r
* users to get and set the innerHTML property of\r
* HTML elements in the same way it's done in \r
* JavaScript.\r
*\r
* Example usage:\r
* @code\r
* require_once 'JSLikeHTMLElement.php';\r
* header('Content-Type: text/plain');\r
* $doc = new DOMDocument();\r
* $doc->registerNodeClass('DOMElement', 'JSLikeHTMLElement');\r
* $doc->loadHTML('<div><p>Para 1</p><p>Para 2</p></div>');\r
* $elem = $doc->getElementsByTagName('div')->item(0);\r
* \r
* // print innerHTML\r
* echo $elem->innerHTML; // prints '<p>Para 1</p><p>Para 2</p>'\r
* echo "\n\n";\r
* \r
* // set innerHTML\r
* $elem->innerHTML = '<a href="http://fivefilters.org">FiveFilters.org</a>';\r
* echo $elem->innerHTML; // prints '<a href="http://fivefilters.org">FiveFilters.org</a>'\r
* echo "\n\n";\r
* \r
* // print document (with our changes)\r
* echo $doc->saveXML();\r
* @endcode\r
*\r
* @author Keyvan Minoukadeh - http://www.keyvan.net - keyvan@keyvan.net\r
* @see http://fivefilters.org (the project this was written for)\r
*/\r
class JSLikeHTMLElement extends DOMElement\r
{\r
	/**\r
	* Used for setting innerHTML like it's done in JavaScript:\r
	* @code\r
	* $div->innerHTML = '<h2>Chapter 2</h2><p>The story begins...</p>';\r
	* @endcode\r
	*/\r
	public function __set($name, $value) {\r
		if ($name == 'innerHTML') {\r
			// first, empty the element\r
			for ($x=$this->childNodes->length-1; $x>=0; $x--) {\r
				$this->removeChild($this->childNodes->item($x));\r
			}\r
			// $value holds our new inner HTML\r
			if ($value != '') {\r
				$f = $this->ownerDocument->createDocumentFragment();\r
				// appendXML() expects well-formed markup (XHTML)\r
				$result = @$f->appendXML($value); // @ to suppress PHP warnings\r
				if ($result) {\r
					if ($f->hasChildNodes()) $this->appendChild($f);\r
				} else {\r
					// $value is probably ill-formed\r
					$f = new DOMDocument();\r
					$value = mb_convert_encoding($value, 'HTML-ENTITIES', 'UTF-8');\r
					// Using <htmlfragment> will generate a warning, but so will bad HTML\r
					// (and by this point, bad HTML is what we've got).\r
					// We use it (and suppress the warning) because an HTML fragment will \r
					// be wrapped around <html><body> tags which we don't really want to keep.\r
					// Note: despite the warning, if loadHTML succeeds it will return true.\r
					$result = @$f->loadHTML('<htmlfragment>'.$value.'</htmlfragment>');\r
					if ($result) {\r
						$import = $f->getElementsByTagName('htmlfragment')->item(0);\r
						foreach ($import->childNodes as $child) {\r
							$importedNode = $this->ownerDocument->importNode($child, true);\r
							$this->appendChild($importedNode);\r
						}\r
					} else {\r
						// oh well, we tried, we really did. :(\r
						// this element is now empty\r
					}\r
				}\r
			}\r
		} else {\r
			$trace = debug_backtrace();\r
			trigger_error('Undefined property via __set(): '.$name.' in '.$trace[0]['file'].' on line '.$trace[0]['line'], E_USER_NOTICE);\r
		}\r
	}\r
\r
	/**\r
	* Used for getting innerHTML like it's done in JavaScript:\r
	* @code\r
	* $string = $div->innerHTML;\r
	* @endcode\r
	*/	\r
	public function __get($name)\r
	{\r
		if ($name == 'innerHTML') {\r
			$inner = '';\r
			foreach ($this->childNodes as $child) {\r
				$inner .= $this->ownerDocument->saveXML($child);\r
			}\r
			return $inner;\r
		}\r
\r
		$trace = debug_backtrace();\r
		trigger_error('Undefined property via __get(): '.$name.' in '.$trace[0]['file'].' on line '.$trace[0]['line'], E_USER_NOTICE);\r
		return null;\r
	}\r
\r
	public function __toString()\r
	{\r
		return '['.$this->tagName.']';\r
	}\r
}\r
?>
Commit	Line	Data
42c80841 NL	1	<?php\r
	2	/**\r
	3	* JavaScript-like HTML DOM Element\r
	4	*\r
	5	* This class extends PHP's DOMElement to allow\r
	6	* users to get and set the innerHTML property of\r
	7	* HTML elements in the same way it's done in \r
	8	* JavaScript.\r
	9	*\r
	10	* Example usage:\r
	11	* @code\r
	12	* require_once 'JSLikeHTMLElement.php';\r
	13	* header('Content-Type: text/plain');\r
	14	* $doc = new DOMDocument();\r
	15	* $doc->registerNodeClass('DOMElement', 'JSLikeHTMLElement');\r
	16	* $doc->loadHTML('<div><p>Para 1</p><p>Para 2</p></div>');\r
	17	* $elem = $doc->getElementsByTagName('div')->item(0);\r
	18	* \r
	19	* // print innerHTML\r
	20	* echo $elem->innerHTML; // prints '<p>Para 1</p><p>Para 2</p>'\r
	21	* echo "\n\n";\r
	22	* \r
	23	* // set innerHTML\r
	24	* $elem->innerHTML = '<a href="http://fivefilters.org">FiveFilters.org</a>';\r
	25	* echo $elem->innerHTML; // prints '<a href="http://fivefilters.org">FiveFilters.org</a>'\r
	26	* echo "\n\n";\r
	27	* \r
	28	* // print document (with our changes)\r
	29	* echo $doc->saveXML();\r
	30	* @endcode\r
	31	*\r
	32	* @author Keyvan Minoukadeh - http://www.keyvan.net - keyvan@keyvan.net\r
	33	* @see http://fivefilters.org (the project this was written for)\r
	34	*/\r
	35	class JSLikeHTMLElement extends DOMElement\r
	36	{\r
	37	/**\r
	38	* Used for setting innerHTML like it's done in JavaScript:\r
	39	* @code\r
	40	* $div->innerHTML = '<h2>Chapter 2</h2><p>The story begins...</p>';\r
	41	* @endcode\r
	42	*/\r
	43	public function __set($name, $value) {\r
	44	if ($name == 'innerHTML') {\r
	45	// first, empty the element\r
	46	for ($x=$this->childNodes->length-1; $x>=0; $x--) {\r
	47	$this->removeChild($this->childNodes->item($x));\r
	48	}\r
	49	// $value holds our new inner HTML\r
	50	if ($value != '') {\r
	51	$f = $this->ownerDocument->createDocumentFragment();\r
	52	// appendXML() expects well-formed markup (XHTML)\r
	53	$result = @$f->appendXML($value); // @ to suppress PHP warnings\r
	54	if ($result) {\r
	55	if ($f->hasChildNodes()) $this->appendChild($f);\r
	56	} else {\r
	57	// $value is probably ill-formed\r
	58	$f = new DOMDocument();\r
	59	$value = mb_convert_encoding($value, 'HTML-ENTITIES', 'UTF-8');\r
	60	// Using <htmlfragment> will generate a warning, but so will bad HTML\r
	61	// (and by this point, bad HTML is what we've got).\r
	62	// We use it (and suppress the warning) because an HTML fragment will \r
	63	// be wrapped around <html><body> tags which we don't really want to keep.\r
	64	// Note: despite the warning, if loadHTML succeeds it will return true.\r
65	$result = @$f->loadHTML('<htmlfragment>'.$value.'</htmlfragment>');\r
66	if ($result) {\r
67	$import = $f->getElementsByTagName('htmlfragment')->item(0);\r
68	foreach ($import->childNodes as $child) {\r
69	$importedNode = $this->ownerDocument->importNode($child, true);\r
70	$this->appendChild($importedNode);\r
71	}\r
72	} else {\r
73	// oh well, we tried, we really did. :(\r
74	// this element is now empty\r
75	}\r
76	}\r
77	}\r
78	} else {\r
79	$trace = debug_backtrace();\r
80	trigger_error('Undefined property via __set(): '.$name.' in '.$trace[0]['file'].' on line '.$trace[0]['line'], E_USER_NOTICE);\r
81	}\r
82	}\r
83	\r
84	/**\r
85	* Used for getting innerHTML like it's done in JavaScript:\r
86	* @code\r
87	* $string = $div->innerHTML;\r
88	* @endcode\r
89	*/ \r
90	public function __get($name)\r
91	{\r
92	if ($name == 'innerHTML') {\r
93	$inner = '';\r
94	foreach ($this->childNodes as $child) {\r
95	$inner .= $this->ownerDocument->saveXML($child);\r
96	}\r
97	return $inner;\r
98	}\r
99	\r
100	$trace = debug_backtrace();\r
101	trigger_error('Undefined property via __get(): '.$name.' in '.$trace[0]['file'].' on line '.$trace[0]['line'], E_USER_NOTICE);\r
102	return null;\r
103	}\r
104	\r
105	public function __toString()\r
106	{\r
107	return '['.$this->tagName.']';\r
108	}\r
109	}\r
110	?>