public static function prepare($tpl)
{
//set the compress tool
self::$exclude = $tpl->getParam('minify_exclude', '');
self::$jstool = $tpl->getParam('minify_js_tool', 'jsmin');
if (self::$exclude) {
self::$exclude = '@' . preg_replace('@[,]+@', '|', preg_quote(self::$exclude)) . '@';
}
}
/**
* Update head - detect if devmode or themermode is enabled and less file existed, use less file instead of css
* We also detect and update jQuery, Bootstrap to use CANVAS assets
*
* @return null
*/
function updateHead()
{
//state parameters
$devmode = $this->getParam('devmode', 0);
$themermode = $this->getParam('themermode', 1) && defined('CANVAS_THEMER');
$theme = $this->getParam('theme', '');
$minify = $this->getParam('minify', 0);
$minifyjs = $this->getParam('minify_js', 0);
// As Joomla 3.0 bootstrap is buggy, we will not use it
// We also prevent both Joomla bootstrap and CANVAS bootsrap are loaded
// And upgrade jquery as our Framework require jquery 1.7+ if we are loading jquery from google
$doc = JFactory::getDocument();
$scripts = array();
if (version_compare(JVERSION, '3.0', 'ge')) {
$canvasbootstrap = false;
$jabootstrap = false;
foreach ($doc->_scripts as $url => $script) {
if (strpos($url, CANVAS_URL . '/bootstrap/js/bootstrap.js') !== false) {
$canvasbootstrap = true;
if ($jabootstrap) {
//we already have the Joomla bootstrap and we also replace to CANVAS bootstrap
continue;
}
}
if (preg_match('@media/jui/js/bootstrap(.min)?.js@', $url)) {
if ($canvasbootstrap) {
//we have CANVAS bootstrap, no need to add Joomla bootstrap
continue;
} else {
$scripts[CANVAS_URL . '/bootstrap/js/bootstrap.js'] = $script;
}
$jabootstrap = true;
} else {
$scripts[$url] = $script;
}
}
$doc->_scripts = $scripts;
$scripts = array();
}
// VIRTUE MART / JSHOPPING compatible
foreach ($doc->_scripts as $url => $script) {
$replace = false;
if (strpos($url, '//ajax.googleapis.com/ajax/libs/jquery/') !== false && preg_match_all('@/jquery/(\\d+(\\.\\d+)*)?/@msU', $url, $jqver) || preg_match_all('@(^|\\/)jquery([-_]*(\\d+(\\.\\d+)+))?(\\.min)?\\.js@i', $url, $jqver)) {
$idx = strpos($url, '//ajax.googleapis.com/ajax/libs/jquery/') !== false ? 1 : 3;
if (is_array($jqver) && isset($jqver[$idx]) && isset($jqver[$idx][0])) {
$jqver = explode('.', $jqver[$idx][0]);
if (isset($jqver[0]) && (int) $jqver[0] <= 1 && isset($jqver[1]) && (int) $jqver[1] < 7) {
$scripts[CANVAS_URL . '/js/jquery-1.8.3' . ($devmode ? '' : '.min') . '.js'] = $script;
$replace = true;
}
}
}
if (!$replace) {
$scripts[$url] = $script;
}
}
$doc->_scripts = $scripts;
// end update javascript
// detect RTL
$dir = $doc->direction;
$is_rtl = $dir == 'rtl';
//Update css/less based on devmode and themermode
$root = JURI::root(true);
$current = JURI::current();
$regex = '@' . preg_quote(CANVAS_TEMPLATE_REL) . '/css/(rtl/)?(.*)\\.css((\\?|\\#).*)?$@i';
$stylesheets = array();
foreach ($doc->_styleSheets as $url => $css) {
// detect if this css in template css
if (preg_match($regex, $url, $match)) {
$fname = $match[2];
if (($devmode || $themermode) && is_file(CANVAS_TEMPLATE_PATH . '/less/' . $fname . '.less')) {
if ($themermode) {
$newurl = CANVAS_TEMPLATE_URL . '/less/' . $fname . '.less';
$css['mime'] = 'text/less';
} else {
CANVAS::import('core/less');
$newurl = CANVASLess::buildCss(CANVASPath::cleanPath('templates/' . CANVAS_TEMPLATE . '/less/' . $fname . '.less'), true);
}
$stylesheets[$newurl] = $css;
} else {
$uri = null;
// detect css available base on direction & theme
if ($is_rtl && $theme) {
$uri = CANVASPath::getUrl('css/rtl/themes' . $theme . '/' . $fname . '.css');
}
if (!$uri && $is_rtl) {
$uri = CANVASPath::getUrl('css/rtl/' . $fname . '.css');
}
if (!$uri && $theme) {
$uri = CANVASPath::getUrl('css/themes/' . $theme . '/' . $fname . '.css');
}
if (!$uri) {
$uri = CANVASPath::getUrl('css/' . $fname . '.css');
}
if ($uri) {
$stylesheets[$uri] = $css;
}
}
continue;
}
$stylesheets[$url] = $css;
}
// update back
$doc->_styleSheets = $stylesheets;
//only check for minify if devmode is disabled
if (!$devmode && ($minify || $minifyjs)) {
CANVAS::import('core/minify');
if ($minify) {
CANVASMinify::optimizecss($this);
}
if ($minifyjs) {
CANVASMinify::optimizejs($this);
}
}
}
