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class-fw-extension-shortcodes.php
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<?php if (!defined('FW')) die('Forbidden');
class FW_Extension_Shortcodes extends FW_Extension
{
/**
* @var FW_Shortcode[]
*/
private $shortcodes;
/**
* @var FW_Ext_Shortcodes_Attr_Coder[]
*/
private $coders = array();
/**
* Gets a certain shortcode by a given tag
*
* @param string $tag The shortcode tag
* @return FW_Shortcode|null
*/
public function get_shortcode($tag)
{
$this->load_shortcodes();
return isset($this->shortcodes[$tag]) ? $this->shortcodes[$tag] : null;
}
/**
* Gets all shortcodes
*
* @return FW_Shortcode[]
*/
public function get_shortcodes()
{
$this->load_shortcodes();
return $this->shortcodes;
}
/**
* @internal
*/
protected function _init()
{
add_action('fw_extensions_init', array($this, '_action_fw_extensions_init'));
add_action('init', array($this, '_action_init'),
11 // register shortcodes later than other plugins (there were some problems with the `column` shortcode)
);
/**
* We need aggressive only for wp-editor, at least for now.
* https://github.com/ThemeFuse/Unyson/issues/1807#issuecomment-235243578
*/
add_action(
'wp_enqueue_editor',
array($this, '_action_editor_shortcodes')
);
// renders the shortcodes so that css will get in <head>
add_action(
'wp_enqueue_scripts',
array($this, '_action_enqueue_shortcodes_static_in_frontend_head'),
/**
* Enqueue later than theme styles
* https://github.com/ThemeFuse/Theme-Includes/blob/b1467714c8a3125f077f1251f01ba6d6ca38640f/init.php#L41
* to be able to wp_add_inline_style('theme-style-handle', ...) in 'fw_ext_shortcodes_enqueue_static:{name}' action
* http://manual.unyson.io/en/latest/extension/shortcodes/index.html#enqueue-shortcode-dynamic-css-in-page-head
* in case the shortcode doesn't have a style, needed in step 3.
*/
30
);
}
/**
* @internal
*/
public function _action_fw_extensions_init()
{
$this->load_shortcodes();
}
public function _action_editor_shortcodes()
{
wp_enqueue_script('fw-ext-shortcodes-editor-integration');
}
public function _action_init() {
$this->register_shortcodes();
}
public function load_shortcodes()
{
static $is_loading = false; // prevent recursion
if ($is_loading) {
trigger_error('Recursive shortcodes load', E_USER_WARNING);
return;
}
if ($this->shortcodes) {
return;
}
$is_loading = true;
$disabled_shortcodes = apply_filters('fw_ext_shortcodes_disable_shortcodes', array());
$this->shortcodes = _FW_Shortcodes_Loader::load(array(
'disabled_shortcodes' => $disabled_shortcodes
));
$is_loading = false;
}
private function register_shortcodes()
{
foreach ($this->shortcodes as $tag => $instance) {
add_shortcode($tag, array($instance, 'render'));
}
}
/**
* Make sure to enqueue shortcodes static in <head> (not in <body>)
* @internal
*/
public function _action_enqueue_shortcodes_static_in_frontend_head()
{
do_action('fw:ext:shortcodes:enqueue_custom_content');
/** @var WP_Post $post */
global $post;
if (!$post) {
return;
}
$this->enqueue_shortcodes_static($post->post_content);
}
/**
* @see fw_ext_shortcodes_enqueue_shortcodes_static()
* @param string $content
*/
public function enqueue_shortcodes_static( $content ) {
preg_replace_callback( '/'. get_shortcode_regex() .'/s', array( $this, 'enqueue_shortcode_static'), $content );
}
private function enqueue_shortcode_static( $shortcode ) {
/**
* Remember the enqueued shortcodes and prevent enqueue static multiple times.
* There is no sense to call enqueue_static() multiple times
* because there is no dynamic data passed to it.
*/
static $enqueued_shortcodes = array();
// allow [[foo]] syntax for escaping a tag
if ( $shortcode[1] == '[' && $shortcode[6] == ']' ) {
return;
}
$tag = $shortcode[2];
if ( ! is_null( $this->get_shortcode( $tag ) ) ) {
if (!isset($enqueued_shortcodes[$tag])) {
$this->get_shortcode($tag)->_enqueue_static();
$enqueued_shortcodes[$tag] = true;
}
/** @var WP_Post $post */
global $post;
do_action('fw_ext_shortcodes_enqueue_static:'. $tag, array(
/**
* Transform to array:
* $attr = shortcode_parse_atts( $data['atts_string'] );
*
* By default it's not transformed, but sent as raw string,
* to prevent useless computation for every shortcode,
* because this action may be used very rare and only for a specific shortcode.
*/
'atts_string' => $shortcode[3],
'post' => $post,
));
$this->enqueue_shortcodes_static($shortcode[5]); // inner shortcodes
/**
* @since 1.3.18
*/
do_action(
'fw_ext_shortcodes:after_shortcode_enqueue_static',
$shortcode
);
}
}
/**
* @param string $coder_id
* @return null|FW_Ext_Shortcodes_Attr_Coder|FW_Ext_Shortcodes_Attr_Coder[]
*/
public function get_attr_coder($coder_id = null)
{
if (empty($this->coders)) {
if (!class_exists('FW_Ext_Shortcodes_Attr_Coder')) {
require_once dirname(__FILE__) . '/includes/coder/interface-fw-ext-shortcodes-attr-coder.php';
}
if (!class_exists('FW_Ext_Shortcodes_Attr_Coder_JSON')) {
require_once dirname(__FILE__) . '/includes/coder/class-fw-ext-shortcodes-attr-coder-json.php';
}
if (!class_exists('FW_Ext_Shortcodes_Attr_Coder_Aggressive')) {
require_once dirname(__FILE__) . '/includes/coder/class-fw-ext-shortcodes-attr-coder-aggressive.php';
}
$coder_json = new FW_Ext_Shortcodes_Attr_Coder_JSON();
$this->coders[ $coder_json->get_id() ] = $coder_json;
$coder_aggressive = new FW_Ext_Shortcodes_Attr_Coder_Aggressive();
$this->coders[ $coder_aggressive->get_id() ] = $coder_aggressive;
if (!class_exists('FW_Ext_Shortcodes_Attr_Coder_Post_Meta')) {
require_once dirname(__FILE__) . '/includes/coder/class-fw-ext-shortcodes-attr-coder-post-meta.php';
}
$coder_post_meta = new FW_Ext_Shortcodes_Attr_Coder_Post_Meta();
$this->coders[ $coder_post_meta->get_id() ] = $coder_post_meta;
foreach (apply_filters('fw_ext_shortcodes_coders', array()) as $coder) {
if (!($coder instanceof FW_Ext_Shortcodes_Attr_Coder)) {
trigger_error(get_class($coder) .' must implement FW_Ext_Shortcodes_Attr_Coder', E_USER_WARNING);
continue;
}
if (isset($this->coders[ $coder->get_id() ])) {
trigger_error('Coder id='. $coder->get_id() .' is already defined', E_USER_WARNING);
continue;
}
$this->coders[ $coder->get_id() ] = $coder;
}
}
if (is_null($coder_id)) {
return $this->coders;
} else {
if (isset($this->coders[$coder_id])) {
return $this->coders[$coder_id];
} else {
return null;
}
}
}
}