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Resource.php
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Resource.php
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<?php
/* Reminder: always indent with 4 spaces (no tabs). */
// +---------------------------------------------------------------------------+
// | Geeklog 2.2 |
// +---------------------------------------------------------------------------+
// | Resource.php |
// | |
// | Geeklog class to include javascript, javascript files and css files. |
// +---------------------------------------------------------------------------+
// | Copyright (C) 2000-2017 by the following authors: |
// | |
// | Authors: Tom Homer, tomhomer AT gmail DOT com |
// | Kenji ITO, mystralkk AT gmail DOT com |
// +---------------------------------------------------------------------------+
// | |
// | 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. |
// | |
// +---------------------------------------------------------------------------+
namespace Geeklog;
use JSMin\JSMin;
class Resource
{
const DEFAULT_CACHE_LIFESPAN = 604800; // 1 week
const JS_TAG_TEMPLATE = '<script type="text/javascript" src="%s"></script>';
// Default theme
const DEFAULT_THEME = 'denim';
// Local library versions
const JQUERY_VERSION = '3.2.1';
const JQUERY_PRIORITY = -5000;
const JQUERY_UI_VERSION = '1.12.1';
const JQUERY_UI_THEME = 'redmond';
const JQUERY_UI_PRIORITY = -4000;
const UIKIT_VERSION = '2.27.2';
const UIKIT_PRIORITY = -3000;
const UIKIT3_VERSION = '3.0.0-beta.35';
const UIKIT3_PRIORITY = -3000;
/**
* Tags for CDN
*/
// JQuery & JQuery UI
const JQUERY_CDN = 'https://ajax.googleapis.com/ajax/libs/jquery/%s/jquery.min.js';
const JQUERY_UI_CDN = 'https://ajax.googleapis.com/ajax/libs/jqueryui/%s/jquery-ui.min.js';
const JQUERY_UI_CSS_CDN = 'https://ajax.googleapis.com/ajax/libs/jqueryui/%s/themes/%s/jquery-ui.css';
// UIkit v2
const UIKIT_CDN = 'https://cdnjs.cloudflare.com/ajax/libs/uikit/%s/js/uikit.min.js';
const UIKIT_CSS_CDN = 'https://cdnjs.cloudflare.com/ajax/libs/uikit/%s/css/uikit.min.css';
// UIkit v3
const UIKIT3_CDN = 'https://cdnjs.cloudflare.com/ajax/libs/uikit/%s/js/uikit.min.js';
const UIKIT3_CDN2 = 'https://cdnjs.cloudflare.com/ajax/libs/uikit/%s/js/uikit-icons.min.js';
const UIKIT3_CSS_CDN = 'https://cdnjs.cloudflare.com/ajax/libs/uikit/%s/css/uikit.min.css';
/**
* Debug mode
*
* @var bool
*/
private $debug = false;
/**
* @var string either '', 'header' or 'footer'
*/
private $jQueryPosition = '';
/**
* @var string either '', 'header' or 'footer'
*/
private $jQueryUIPosition = '';
/**
* @var bool
*/
private $useUIkit = false;
/**
* @var bool
*/
private $useUIkit3 = false;
/**
* @var string
*/
private $theme = self::DEFAULT_THEME;
/**
* @var array
*/
private $libraryLocations = array(
'jquery' => '/vendor/jquery/jquery.min.js',
'jquery-ui' => '/vendor/jquery-ui/jquery-ui.min.js',
'jquery-ui-i18n' => '/javascript/jquery_ui/jquery-ui-i18n.min.js',
'jquery-ui-slideraccess' => '/javascript/jquery_ui/jquery-ui-slideraccess.min.js',
'jquery-ui-timepicker-addon' => '/javascript/jquery_ui/jquery-ui-timepicker-addon.min.js',
'jquery-ui-timepicker-addon-i18n' => '/javascript/jquery_ui/jquery-ui-timepicker-addon-i18n.min.js',
'admin.configuration' => '/javascript/admin.configuration.js',
'admin.topic' => '/javascript/admin.topic.js',
'advanced_editor' => '/javascript/advanced_editor.js',
'comment' => '/javascript/comment.js',
'common' => '/javascript/common.js',
'datepicker' => '/javascript/datepicker.js',
'datetimepicker' => '/javascript/datetimepicker.js',
'dbadmin' => '/javascript/dbadmin.js',
'dbbackup' => '/javascript/dbbackup.js',
'dialog_help' => '/javascript/dialog_help.js',
'fix_tooltip' => '/javascript/fix_tooltip.js',
'login' => '/javascript/login.js',
'moveuser' => '/javascript/moveuser.js',
'postmode_control' => '/javascript/postmode_control.js',
'profile_editor' => '/javascript/profile_editor.js',
'story_editor' => '/javascript/story_editor.js',
'storyeditor_advanced' => '/javascript/storyeditor_advanced.js',
'submitcomment_adveditor' => '/javascript/submitcomment_adveitor.js',
'submitstory_adveditor' => '/javascript/submitstory_adveditor',
'title_2_id' => '/javascript/title_2_id.js',
'topic_control' => '/javascript/topic_control.js',
'uikit_modifier' => '/javascript/uikit_modifier.js',
'uikit' => '/vendor/uikit/js/uikit.min.js',
'uikit.accordion' => '/vendor/uikit/js/components/accordion.min.js',
'uikit.autocomplete' => '/vendor/uikit/js/components/autocomplete.min.js',
'uikit.datepicker' => '/vendor/uikit/js/components/datepicker.min.js',
'uikit.form-password' => '/vendor/uikit/js/components/form-password.min.js',
'uikit.form-select' => '/vendor/uikit/js/components/form-select.min.js',
'uikit.grid-parallax' => '/vendor/uikit/js/components/grid-parallax.min.js',
'uikit.grid' => '/vendor/uikit/js/components/grid.min.js',
'uikit.htmleditor' => '/vendor/uikit/js/components/htmleditor.min.js',
'uikit.lightbox' => '/vendor/uikit/js/components/lightbox.min.js',
'uikit.nestable' => '/vendor/uikit/js/components/nestable.min.js',
'uikit.notify' => '/vendor/uikit/js/components/notify.min.js',
'uikit.pagination' => '/vendor/uikit/js/components/pagination.min.js',
'uikit.parallax' => '/vendor/uikit/js/components/parallax.min.js',
'uikit.search' => '/vendor/uikit/js/components/search.min.js',
'uikit.slider' => '/vendor/uikit/js/components/slider.min.js',
'uikit.slideset' => '/vendor/uikit/js/components/slideset.min.js',
'uikit.slideshow-fx' => '/vendor/uikit/js/components/slideshow-fx.min.js',
'uikit.slideshow' => '/vendor/uikit/js/components/slideshow.min.js',
'uikit.sortable' => '/vendor/uikit/js/components/sortable.min.js',
'uikit.sticky' => '/vendor/uikit/js/components/sticky.min.js',
'uikit.timepicker' => '/vendor/uikit/js/components/timepicker.min.js',
'uikit.tooltip' => '/vendor/uikit/js/components/tooltip.min.js',
'uikit.upload' => '/vendor/uikit/js/components/upload.min.js',
'uikit3' => '/vendor/uikit3/js/uikit.min.js',
'uikit3-icons' => '/vendor/uikit3/js/uikit-icons.min.js',
);
/**
* @var array a copy of $_CONF
*/
private $config;
/**
* Array of CSS code block to write between <style> and </style> tags
*
* @var array
*/
private $cssBlocks = array();
/**
* Array of local CSS files
*
* @var array
*/
private $localCssFiles = array();
/**
* Array of external CSS URIs
*
* @var array
*/
private $externalCssFiles = array();
/**
* Array of JavaScript code to write between <script> and </script> tags
*
* @var array
*/
private $jsBlocks = array(
'header' => array(),
'footer' => array(),
);
/**
* Array of local JavaScript files
*
* @var array
*/
private $localJsFiles = array(
'header' => array(),
'footer' => array(),
);
/**
* Array of external JavaScript URIs
*
* @var array
*/
private $externalJsFiles = array(
'header' => array(),
'footer' => array(),
);
/**
* @var array
*/
private $lang = array();
/**
* @var bool
*/
private $isHeaderSet = false;
/**
* Resource constructor.
*
* @param array $config
*/
public function __construct(array $config)
{
if (isset($config['developer_mode'], $config['developer_mode_log']['resource']) &&
$config['developer_mode'] &&
$config['developer_mode_log']['resource']) {
$this->setDebug(true);
}
$config['path_html'] = str_replace('\\', '/', rtrim($config['path_html'], '/\\'));
$this->config = $config;
$this->theme = $config['theme'];
$this->setJavaScriptLibrary('common', false);
}
/**
* Set debug mode
*
* @param bool $switch
*/
public function setDebug($switch)
{
$this->debug = (bool) $switch;
}
/**
* Write an entry into log
*
* @param string $entry
*/
private function log($entry)
{
static $isErrorLogAvailable = null;
if ($isErrorLogAvailable === null) {
$isErrorLogAvailable = is_callable('COM_errorLog');
}
if ($isErrorLogAvailable) {
COM_errorLog($entry);
} else {
$entry = nl2br($entry);
@log($entry);
}
}
/**
* Return if a URI given is an external file
*
* @param string $uri
* @return bool
*/
private function isExternal($uri)
{
$retval = (stripos($uri, 'http://') === 0) ||
(stripos($uri, 'https://') === 0) ||
(strpos($uri, '//') === 0);
return $retval;
}
/**
* Return if a path exists
*
* @param string $path absolute path
* @return bool
*/
private function exists($path)
{
clearstatcache();
return @is_file($path) && @is_readable($path);
}
/**
* Check CSS attributes
*
* @param array $attributes
* @return array
*/
private function checkCssAttributes(array $attributes)
{
$retval = array();
foreach ($attributes as $key => $value) {
$key = strtolower($key);
switch ($key) {
case 'rel':
if (!isset($retval[$key])) {
$value = strtolower($value);
if (($value === 'stylesheet') || ($value === 'alternate stylesheet')) {
$retval[$key] = $value;
}
}
break;
case 'title':
case 'media':
if (!isset($retval[$key])) {
$retval[$key] = $value;
}
break;
}
}
if (!isset($retval['rel'])) {
$retval['rel'] = 'stylesheet';
}
$retval['type'] = 'text/css';
return $retval;
}
/**
* Set JavaScript Libraries to load
*
* @param string $name
* @param bool $isFooter
* @return bool
*/
public function setJavaScriptLibrary($name, $isFooter = true)
{
global $LANG_DIRECTION;
$name = strtolower($name);
$position = $isFooter ? 'footer' : 'header';
if (!isset($this->libraryLocations[$name])) {
if (stripos($name, 'jquery.ui.') === 0) {
$name = 'jquery-ui';
} else {
return false;
}
}
switch ($name) {
case 'jquery':
if (!empty($this->jQueryPosition)) {
// Already used
return true;
}
$this->jQueryPosition = $position;
return true;
break;
case 'jquery-ui':
if (!empty($this->jQueryUIPosition)) {
// Already used
return true;
}
if (!$this->jQueryPosition) {
$this->setJavaScriptLibrary('jquery', $isFooter);
}
$this->jQueryUIPosition = $position;
return true;
break;
case 'uikit':
if ($this->useUIkit) {
// Already used
return true;
}
if (!$this->jQueryPosition) {
$this->setJavaScriptLibrary('jquery', false);
}
$this->useUIkit = true;
return true;
break;
case 'uikit3':
if ($this->useUIkit3) {
// Already used
return true;
}
$this->useUIkit3 = true;
return true;
break;
default:
$this->localJsFiles[$position][] = array(
'file' => $this->libraryLocations[$name],
'priority' => 100,
);
// In case of a UIkit component, add a suitable CSS file
if (strpos($name, 'uikit.') === 0) {
if (!$this->useUIkit) {
$this->setJavaScriptLibrary('uikit');
}
list (, $componentName) = explode('.', $name, 2);
$dir = (isset($LANG_DIRECTION) && ($LANG_DIRECTION === 'rtl')) ? 'css_rtl' : 'css';
$cssPath = '/vendor/uikit/' . $dir . '/components/' . $componentName . '.min.css';
$this->setCssFile($name, $cssPath, true, array());
}
break;
}
return false;
}
/**
* Set JavaScript to load
*
* @param string $code
* @param bool $wrap (not used)
* @param bool $isFooter
* @return bool
*/
public function setJavaScript($code, $wrap = false, $isFooter = true)
{
if ($this->isHeaderSet && !$isFooter) {
return false;
} else {
if (!$wrap) {
// Strip <script> and </script> tags
$code = preg_replace('@<script[^>]+>@i', '', $code);
$code = str_ireplace('</script>', '', $code);
}
$this->jsBlocks[$isFooter ? 'footer' : 'header'][] = $code;
return true;
}
}
/**
* Set JavaScript file to load
*
* @param string $name (not used)
* @param string $file relative to public_html (must start with '/')
* @param bool $isFooter
* @param int $priority
* @return bool
*/
public function setJavaScriptFile($name, $file, $isFooter = true, $priority = 100)
{
if ($this->isHeaderSet && !$isFooter) {
return false;
}
$position = $isFooter ? 'footer' : 'header';
if ($this->isExternal($file)) {
$this->externalJsFiles[$position][] = array(
'file' => $file,
'priority' => $priority,
);
return true;
} else {
if ($this->exists($this->config['path_html'] . $file)) {
$this->localJsFiles[$position][] = array(
'file' => $file,
'priority' => $priority,
);
return true;
} else {
return false;
}
}
}
/**
* Set language variables used in JavaScript.
*
* @param array $lang_array array of language variables
* @return bool
*/
public function setLang(array $lang_array)
{
$this->lang = array_merge($this->lang, $lang_array);
return true;
}
/**
* Set CSS file to load
*
* @param string $name (not used)
* @param string $file relative public_html (must start with '/')
* @param bool $constant (not used)
* @param array $attributes
* @param int $priority
* @param string $type (not used)
* @return bool
*/
public function setCssFile($name, $file, $constant = true, $attributes = array(), $priority = 100, $type = '')
{
if ($this->isHeaderSet) {
return false;
}
$attributes = $this->checkCssAttributes($attributes);
if ($this->isExternal($file)) {
$this->externalCssFiles[] = array(
'file' => $file,
'attributes' => $attributes,
'priority' => $priority,
'type' => $type,
);
return true;
} else {
if ($this->exists($this->config['path_html'] . $file)) {
$this->localCssFiles[] = array(
'name' => $name,
'file' => $file,
'attributes' => $attributes,
'priority' => $priority,
'type' => $type,
);
return true;
} else {
return false;
}
}
}
/**
* Set CSS in header using style tag
*
* @param string $css
* @return bool
*/
public function setCSS($css)
{
if ($this->isHeaderSet) {
return false;
} else {
$this->cssBlocks[] = $css;
return true;
}
}
/**
* Make a key for caching based on paths relative to public_html
*
* @param array $relativePaths
* @return string
*/
private function makeCacheKey(array $relativePaths)
{
return md5(implode('|', $relativePaths));
}
/**
* Sort criterion by priority
*
* @param array $a
* @param array $b
* @return int
*/
private static function comparePriority(array $a, array $b)
{
if ($a['priority'] < $b['priority']) {
return -1;
} elseif ($a['priority'] > $b['priority']) {
return 1;
} else {
return 0;
}
}
/**
* Return a <link> tag
*
* @param string $href
* @param array $attributes
* @return string
*/
private function buildLinkTag($href, array $attributes = array())
{
if (empty($attributes)) {
$attributes['rel'] = 'stylesheet';
}
$retval = sprintf('<link rel="%s" href="%s"', $attributes['rel'], $href);
unset($attributes['rel']);
foreach ($attributes as $key => $value) {
$key = htmlspecialchars($key, ENT_QUOTES, 'utf-8');
$value = htmlspecialchars($value, ENT_QUOTES, 'utf-8');
$retval .= sprintf(' %s="%s"', $key, $value);
}
$retval .= XHTML . '>';
return $retval;
}
/**
* Return the latest modified time of the files given
*
* @param array $absolutePaths
* @return int
*/
private function getLatestModifiedTime(array $absolutePaths)
{
clearstatcache();
$retval = time() - 3600 * 24 * 365;
foreach ($absolutePaths as $absolutePath) {
if ($this->exists($absolutePath)) {
$mTime = @filemtime($absolutePath);
if ($retval < $mTime) {
$retval = $mTime;
}
}
}
return $retval;
}
/**
* Minify CSS
*
* @param array $files
* @return string
* @note Currently, this method does NOT minify CSS code
*/
private function minifyCSS(array $files)
{
global $LANG_DIRECTION;
if ($this->debug || !Cache::isEnabled()) {
$retval = '';
foreach ($files as $file) {
$retval .= $this->buildLinkTag($this->config['site_url'] . $file['file'], array()) . PHP_EOL;
}
return $retval;
}
$contents = '';
$relativePaths = array();
// Concatenate all CSS files
foreach ($files as $file) {
$chunk = @file_get_contents($this->config['path_html'] . $file['file']);
if ($chunk !== false) {
$relativePaths[] = $file['file'];
$contents .= $chunk . PHP_EOL;
}
}
$theme = strtolower($this->config['theme']);
// Replace {left} and {right} place-holders
if (isset($LANG_DIRECTION) && ($LANG_DIRECTION === 'rtl')) {
$dir = 'rtl';
$left = 'right';
$right = 'left';
} else {
$dir = 'ltr';
$left = 'left';
$right = 'right';
}
if ($theme === 'modern_curve') {
$contents = str_replace(array('{left}', '{right}'), array($left, $right), $contents);
}
// Rewrite image paths
$contents = str_ireplace('url("./images/', 'url("layout/' . $theme . '/images/', $contents);
$contents = str_ireplace("url('./images/", "url('layout/" . $theme . "/images/", $contents);
$contents = str_ireplace('url(./images/', 'url(layout/' . $theme . '/images/', $contents);
$contents = str_ireplace('url("../images/', 'url("layout/' . $theme . '/images/', $contents);
$contents = str_ireplace("url('../images/", "url('layout/" . $theme . "/images/", $contents);
$contents = str_ireplace('url(../images/', 'url(layout/' . $theme . "/images/", $contents);
$contents = str_ireplace("url('jquery_ui/images/", "url('layout/" . $theme . "/jquery_ui/images/", $contents);
$contents = str_ireplace('url("../fonts/', 'url("vendor/uikit/fonts/', $contents);
$contents = str_ireplace('url(../fonts/', 'url(vendor/uikit/fonts/', $contents);
// Unify lien ends
$contents = str_replace(array("\r\n", "\r"), "\n", $contents);
// strip comments
$contents = preg_replace("@/\*[^!].*?\*/@sm", '', $contents);
// strip indentation
$contents = preg_replace("@\s*\n+\s*@sm", "\n", $contents);
$key = $this->makeCacheKey($relativePaths) . $dir;
$data = array(
'createdAt' => microtime(true),
'data' => $contents,
'paths' => $relativePaths,
'type' => 'c',
);
Cache::set($key, $data);
$retval = $this->buildLinkTag($this->config['site_url'] . '/r.php?k=' . $key, array());
return $retval;
}
/**
* Minify file contents
*
* @param array $paths array of absolute paths
* @return string minified code
*/
private function minifyJS(array $paths)
{
$retval = '';
foreach ($paths as $path) {
if ($this->debug) {
$retval .= '/* ' . $path . ' */' . PHP_EOL;
}
if (preg_match('/[.-]min\.js$/i', $path)) {
// Already minified
$retval .= @file_get_contents($path) . PHP_EOL;
} else {
$data = @file_get_contents($path);
if ($data !== false) {
$data = JSMin::minify($data);
$retval .= $data . PHP_EOL;
}
}
}
return $retval;
}
/**
* Minify local files and build a tag to serve the data
*
* @param array $files array of array('file', 'priority', 'attributes') or array('file', 'priority')
* @param bool $isCss
* @return string
*/
private function makeFileServerTag(array $files, $isCss = true)
{
if ($this->debug) {
$temp = array();
foreach ($files as $file) {
$temp[] = $file['file'];
}
$entry = __METHOD__ . ':' . PHP_EOL
. '$files: ' . implode(', ', $temp) . PHP_EOL
. '$isCss: ' . ($isCss ? 'true' : 'false') . PHP_EOL;
$this->log($entry);
}
usort($files, array('Geeklog\\Resource', 'comparePriority'));
if ($isCss) {
// Make an item with 'name' property being 'theme' the top of the list to load the theme CSS first
$temp = array();
foreach ($files as $file) {
if (isset($file['name']) && ($file['name'] === 'theme')) {
$temp = array_unshift($temp, $file);
} else {
$temp[] = $file;
}
}
$files = $temp;
return $this->minifyCSS($files);
}
// Minify JavaScript
$retval = '';
// Exclude files for advanced editor, since they wouldn't work in displaced locations
// typically, /editors/
$editorPath = str_replace(
$this->config['path_html'],
'',
str_replace('\\', '/', $this->config['path_editors'])
);
$temp = $files;
$files = array();
foreach ($temp as $file) {
if (stripos($file['file'], $editorPath) === 0) {
$retval .= sprintf(self::JS_TAG_TEMPLATE, $this->config['site_url'] . $file['file']) . PHP_EOL;
} else {
$files[] = $file;
}
}
$absolutePaths = array();
$relativePaths = array();
$success = false;
foreach ($files as $file) {
$absolutePaths[] = $this->config['path_html'] . $file['file'];
$relativePaths[] = $file['file'];
}
$key = $this->makeCacheKey($relativePaths);
$cachedData = Cache::get($key);
// Whether cached data exist and they are still valid?
if (!empty($compressedData) && isset($cachedData['createdAt']) &&
($this->getLatestModifiedTime($absolutePaths) <= $cachedData['createdAt'])) {
$success = true;
}
if (!$success && !$this->debug) {
// Cached data are missing or stale
$data = array(
'createdAt' => microtime(true),
'data' => $this->minifyJS($absolutePaths),
'paths' => $relativePaths,
'type' => ($isCss ? 'c' : 'j'),
);
$success = Cache::set($key, $data, 0);
}
if ($success && !$this->debug) {
$url = $this->config['site_url'] . '/r.php?k=' . $key;
$retval .= sprintf('<script type="text/javascript" src="%s"></script>', $url);
} else {
// Somehow failed to save data into cache or debug mode is on
$retval .= PHP_EOL;
foreach ($files as $file) {
$retval .= sprintf(
self::JS_TAG_TEMPLATE, $this->config['site_url'] . $file['file']
)
. PHP_EOL;
}
}
return $retval;
}
/**
* Convert from array to JavaScript object format string
*
* @param array $source
* @return string
*/
private function arrayToJavaScriptObject(array $source)
{
$retval = '{';
foreach ($source as $key => $val) {
$retval .= "$key:";
switch (gettype($val)) {
case 'array':
$retval .= $this->arrayToJavaScriptObject($val) . ',';
break;
case 'boolean':
$retval .= $val ? 'true,' : 'false,';
break;
case 'NULL':
$retval .= 'null,';
break;
case 'integer':
case 'double':
$retval .= $val . ',';
break;
default:
$retval .= '"' . $val . '",';
break;
}
}
$retval = rtrim($retval, ',') . '}';
return $retval;
}
/**
* Make tags for system libraries
*
* @param bool $isFooter
* @return string
*/
private function makeTagsForSystemLibraries($isFooter = true)
{
$retval = '';
// JQuery
if ((!$isFooter && ($this->jQueryPosition === 'header')) ||
($isFooter && ($this->jQueryPosition === 'footer'))) {
if ($this->config['cdn_hosted']) {
$retval .= sprintf(
self::JS_TAG_TEMPLATE,
sprintf(self::JQUERY_CDN, self::JQUERY_VERSION)
);
} else {
$retval .= sprintf(
self::JS_TAG_TEMPLATE,
$this->config['site_url'] . $this->libraryLocations['jquery']
);
}
$retval .= PHP_EOL;
}
// JQuery UI
if ((!$isFooter && ($this->jQueryUIPosition === 'header')) ||
($isFooter && ($this->jQueryUIPosition === 'footer'))) {
if ($this->config['cdn_hosted']) {
$retval .= sprintf(
self::JS_TAG_TEMPLATE,
sprintf(self::JQUERY_UI_CDN, self::JQUERY_UI_VERSION)
);
} else {
$retval .= sprintf(
self::JS_TAG_TEMPLATE,
$this->config['site_url'] . $this->libraryLocations['jquery-ui']
);
}
$retval .= PHP_EOL;
}
// UIkit
if (!$isFooter && $this->useUIkit) {
if ($this->config['cdn_hosted']) {
$retval .= sprintf(
self::JS_TAG_TEMPLATE,
sprintf(self::UIKIT_CDN, self::UIKIT_VERSION)
);
} else {
$retval .= sprintf(
self::JS_TAG_TEMPLATE,
$this->config['site_url'] . $this->libraryLocations['uikit']
);
}
$retval .= PHP_EOL;