Файл: sngine-v2.8/Script/includes/libs/Embed/Utils.php
Строк: 257
<?php
namespace Embed;
use DOMDocument;
use DOMElement;
use DOMNodeList;
use DOMXPath;
/**
* Some helpers methods used across the library.
*/
class Utils
{
private static $encodings = [
'ASCII' => 'ascii',
'UTF-8' => 'utf-8',
'SJIS' => 'shift_jis',
'Windows-1251' => 'windows-1251',
'Windows-1252' => 'windows-1252',
'Windows-1254' => 'windows-1254',
'ISO-8859-1' => 'iso-8859-1',
'ISO-8859-2' => 'iso-8859-2',
'ISO-8859-3' => 'iso-8859-3',
'ISO-8859-4' => 'iso-8859-4',
'ISO-8859-5' => 'iso-8859-5',
'ISO-8859-6' => 'iso-8859-6',
'ISO-8859-7' => 'iso-8859-7',
'ISO-8859-8' => 'iso-8859-8',
'ISO-8859-9' => 'iso-8859-9',
'ISO-8859-10' => 'iso-8859-10',
'ISO-8859-13' => 'iso-8859-13',
'ISO-8859-14' => 'iso-8859-14',
'ISO-8859-15' => 'iso-8859-15',
'ISO-8859-16' => 'iso-8859-16',
];
/**
* Creates a <video> element.
*
* @param string $poster Poster attribute
* @param string|array $sources Video sources
* @param int $width Width attribute
* @param int $height Height attribute
*
* @return string
*/
public static function videoHtml($poster, $sources, $width = 0, $height = 0)
{
$code = self::element('video', [
'poster' => ($poster ?: null),
'width' => ($width ?: null),
'height' => ($height ?: null),
'controls' => true,
]);
foreach ((array) $sources as $source) {
$code .= self::element('source', ['src' => $source]);
}
return $code.'</video>';
}
/**
* Creates an <audio> element.
*
* @param string|array $sources Audio sources
*
* @return string
*/
public static function audioHtml($sources)
{
$code = '<audio controls>';
foreach ((array) $sources as $source) {
$code .= self::element('source', ['src' => $source]);
}
return $code.'</audio>';
}
/**
* Creates an <img> element.
*
* @param string $src Image source attribute
* @param string $alt Alt attribute
* @param int $width Width attribute
* @param int $height Height attribute
*
* @return string
*/
public static function imageHtml($src, $alt = '', $width = 0, $height = 0)
{
return self::element('img', [
'src' => $src,
'alt' => $alt,
'width' => ($width ?: null),
'height' => ($height ?: null),
]);
}
/**
* Creates an <iframe> element.
*
* @param string $src Iframe source attribute
* @param int $width Width attribute
* @param int $height Height attribute
* @param int $styles Extra css styles
*
* @return string
*/
public static function iframe($src, $width = 0, $height = 0, $styles = '')
{
$width = $width ? (is_int($width) ? $width.'px' : $width) : '600px';
$height = $height ? (is_int($height) ? $height.'px' : $height) : '400px';
if (empty($styles)) {
$styles = 'border:none;overflow:hidden;';
}
$styles .= "width:{$width};height:{$height};";
return self::element('iframe', [
'src' => $src,
'frameborder' => 0,
'allowTransparency' => 'true',
'style' => $styles,
]).'</iframe>';
}
/**
* Creates an <script> element.
*
* @param string $src The src attribute
*
* @return string
*/
public static function script($src)
{
return self::element('script', [
'src' => $src,
]).'</script>';
}
/**
* Creates an <iframe> element with a google viewer.
*
* @param string $src The file loaded by the viewer (pdf, doc, etc)
*
* @return string
*/
public static function google($src)
{
return self::iframe('https://docs.google.com/viewer?'.http_build_query([
'url' => $src,
'embedded' => 'true',
]), 600, 600);
}
/**
* Creates a flash element.
*
* @param string $src The swf file source
* @param null|int $width Width attribute
* @param null|int $height Height attribute
*
* @return string
*/
public static function flash($src, $width = null, $height = null)
{
$code = self::element('object', [
'width' => $width ?: 600,
'height' => $height ?: 400,
'classid' => 'clsid:D27CDB6E-AE6D-11cf-96B8-444553540000',
'codebase' => 'http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,47,0',
]);
$code .= self::element('param', ['name' => 'movie', 'value' => $src]);
$code .= self::element('param', ['name' => 'allowFullScreen', 'value' => 'true']);
$code .= self::element('param', ['name' => 'allowScriptAccess', 'value' => 'always']);
$code .= self::element('embed', [
'src' => $src,
'width' => $width ?: 600,
'height' => $height ?: 400,
'type' => 'application/x-shockwave-flash',
'allowFullScreen' => 'true',
'allowScriptAccess' => 'always',
'pluginspage' => 'http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash',
]);
return $code.'</embed></object>';
}
/**
* Creates an html element.
*
* @param string $name Element name
* @param array $attrs Element attributes
*
* @return string
*/
private static function element($name, array $attrs)
{
$str = "<$name";
foreach ($attrs as $name => $value) {
if ($value === null) {
continue;
} elseif ($value === true) {
$str .= " $name";
} elseif ($value !== false) {
$str .= ' '.$name.'="'.htmlspecialchars($value).'"';
}
}
return "$str>";
}
/**
* Convert a string to utf-8.
*
* @param string $content The content to convert
* @param string $charset The original charset
*
* @return string
*/
public static function toUtf8($content, $charset)
{
$charset = strtoupper($charset);
if (empty($charset) || $charset === 'UTF-8') {
return $content;
}
$encodings = array_map('strtoupper', mb_list_encodings());
if (in_array($charset, $encodings, true)) {
return mb_convert_encoding($content, 'UTF-8', $charset);
}
if (function_exists('iconv')) {
return iconv($charset, 'UTF-8//TRANSLIT//IGNORE', $content);
}
return $content;
}
/**
* Search and return the first element matching with a xpath
*
* @param DOMDocument $document
* @param string $query
* @param bool $returnFirst
*
* @return DOMElement|DOMNodeList|null
*/
public static function xpathQuery(DOMDocument $document, $query, $returnFirst = true)
{
$xpath = new DOMXPath($document);
$entries = $xpath->query($query);
if ($entries->length) {
return $returnFirst ? $entries->item(0) : $entries;
}
}
/**
* Parse a string as html code
*
* @param string $html
*
* @return DOMDocument
*/
public static function parse($html)
{
$errors = libxml_use_internal_errors(true);
$entities = libxml_disable_entity_loader(true);
$html = trim(self::normalize($html));
$document = new DOMDocument();
$document->loadHTML($html);
libxml_use_internal_errors($errors);
libxml_disable_entity_loader($entities);
return $document;
}
/**
* Normalize the encoding of a html code before parse
*
* @param string $string
*
* @return string
*/
private static function normalize($string)
{
$detected = mb_detect_encoding($string, implode(',', array_keys(self::$encodings)), true);
if ($detected && isset(self::$encodings[$detected])) {
$string = mb_convert_encoding($string, 'HTML-ENTITIES', $detected);
$string = preg_replace(
'/<head[^>]*>/',
'<head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset='.self::$encodings[$detected].'">',
$string
);
}
return $string;
}
}