/**
* Check whether style has been added to NXTClass Styles.
*
* The values for list defaults to 'queue', which is the same as nxt_enqueue_style().
*
* @since nxt unknown; BP unknown
* @global object $nxt_styles The nxt_Styles object for printing styles.
*
* @param string $handle Name of the stylesheet.
* @param string $list Values are 'registered', 'done', 'queue' and 'to_do'.
* @return bool True on success, false on failure.
*/
function nxt_style_is($handle, $list = 'queue')
{
global $nxt_styles;
if (!is_a($nxt_styles, 'nxt_Styles')) {
$nxt_styles = new nxt_Styles();
}
$query = $nxt_styles->query($handle, $list);
if (is_object($query)) {
return true;
}
return $query;
}
/**
* Check whether style has been added to NXTClass Styles.
*
* The values for list defaults to 'queue', which is the same as nxt_enqueue_style().
*
* @since nxt unknown; BP unknown
* @global object $nxt_styles The nxt_Styles object for printing styles.
*
* @param string $handle Name of the stylesheet.
* @param string $list Values are 'registered', 'done', 'queue' and 'to_do'.
* @return bool True on success, false on failure.
*/
function nxt_style_is($handle, $list = 'queue')
{
global $nxt_styles;
if (!is_a($nxt_styles, 'nxt_Styles')) {
if (!did_action('init')) {
_doing_it_wrong(__FUNCTION__, sprintf(__('Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.'), '<code>nxt_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>init</code>'), '3.3');
}
$nxt_styles = new nxt_Styles();
}
$query = $nxt_styles->query($handle, $list);
if (is_object($query)) {
return true;
}
return $query;
}
/**
* Prints the styles queue in the HTML head on admin pages.
*
* @since 2.8
*/
function print_admin_styles()
{
global $nxt_styles, $concatenate_scripts, $compress_css;
if (!is_a($nxt_styles, 'nxt_Styles')) {
$nxt_styles = new nxt_Styles();
}
script_concat_settings();
$nxt_styles->do_concat = $concatenate_scripts;
$zip = $compress_css ? 1 : 0;
if ($zip && defined('ENFORCE_GZIP') && ENFORCE_GZIP) {
$zip = 'gzip';
}
$nxt_styles->do_items(false);
if (apply_filters('print_admin_styles', true)) {
_print_styles();
}
$nxt_styles->reset();
return $nxt_styles->done;
}
/**
* Enqueues or directly prints a stylesheet link to the specified CSS file.
*
* "Intelligently" decides to enqueue or to print the CSS file. If the
* 'nxt_print_styles' action has *not* yet been called, the CSS file will be
* enqueued. If the nxt_print_styles action *has* been called, the CSS link will
* be printed. Printing may be forced by passing TRUE as the $force_echo
* (second) parameter.
*
* For backward compatibility with NXTClass 2.3 calling method: If the $file
* (first) parameter does not correspond to a registered CSS file, we assume
* $file is a file relative to nxt-admin/ without its ".css" extension. A
* stylesheet link to that generated URL is printed.
*
* @package NXTClass
* @since 2.3.0
* @uses $nxt_styles NXTClass Styles Object
*
* @param string $file Optional. Style handle name or file name (without ".css" extension) relative
* to nxt-admin/. Defaults to 'nxt-admin'.
* @param bool $force_echo Optional. Force the stylesheet link to be printed rather than enqueued.
*/
function nxt_admin_css($file = 'nxt-admin', $force_echo = false)
{
global $nxt_styles;
if (!is_a($nxt_styles, 'nxt_Styles')) {
$nxt_styles = new nxt_Styles();
}
// For backward compatibility
$handle = 0 === strpos($file, 'css/') ? substr($file, 4) : $file;
if ($nxt_styles->query($handle)) {
if ($force_echo || did_action('nxt_print_styles')) {
// we already printed the style queue. Print this one immediately
nxt_print_styles($handle);
} else {
// Add to style queue
nxt_enqueue_style($handle);
}
return;
}
echo apply_filters('nxt_admin_css', "<link rel='stylesheet' href='" . esc_url(nxt_admin_css_uri($file)) . "' type='text/css' />\n", $file);
if (is_rtl()) {
echo apply_filters('nxt_admin_css', "<link rel='stylesheet' href='" . esc_url(nxt_admin_css_uri("{$file}-rtl")) . "' type='text/css' />\n", "{$file}-rtl");
}
}
