fallback_content( $content );
$post_id = (int) USBuilder::get_post_id();
// Checking if we are preparing the edited post content
$preparing_main_content = FALSE;
if ( $post_id == get_the_ID() ) {
$preparing_main_content = TRUE;
}
// For the edited post, we are forcing row / column structure for now, later this will be improved
if ( $preparing_main_content ) {
if (
! defined( 'USB_REMOVE_ROWS' )
AND strpos( $content, '[vc_row' ) === FALSE
) {
$content = '[vc_row][vc_column][vc_column_text]' . $content . '[/vc_column_text][/vc_column][/vc_row]';
} elseif (
defined( 'USB_REMOVE_ROWS' )
AND strpos( $content, '[vc_column_text' ) === FALSE
) {
$content = '[vc_column_text]' . $content . '[/vc_column_text]';
}
}
$indexes = array(); // The indexes for shortcodes
/**
* Adds usbid for shortcodes
*
* @param $matches The matches
* @return string Modified shortcode
*/
$func_prepare_shortcode = function ( $matches ) use ( &$indexes ) {
// Matched variables
$shortcode_name = $matches[2];
$shortcode_atts = $matches[3];
$shortcode_content = $matches[5];
// A shortcode can have only one identifier, so if there is an identifier,
// we will return the result unchanged.
if ( strpos( $shortcode_atts, 'usbid="' ) !== FALSE ) {
return $matches[0]; // Original shortcode unchanged
}
// Gets a unique index for a shortcode
if ( empty( $indexes[ $shortcode_name ] ) ) {
$indexes[ $shortcode_name ] = 1;
} else {
$indexes[ $shortcode_name ]++;
}
// Creating a unique tag ID
$usbid = $shortcode_name . ':' . $indexes[ $shortcode_name ];
// Add the usbid to the general list of shortcode attributes
return '[' . $shortcode_name.$shortcode_atts . ' usbid="' . $usbid .'"]' . $shortcode_content;
};
$pattern = '/'. get_shortcode_regex() .'/Ui';
$content = preg_replace_callback( $pattern, $func_prepare_shortcode, $content );
// Saving only page shortcodes, ignore everything else,
// since I can parse templates or other components.
if ( $preparing_main_content ) {
$this->content = trim( $content, "\n" );
}
return (string) apply_filters( 'usb_shortcode_preparate_text', $content );
}
/**
* Adds data-usbid attribute to html when output shortcode result
*
* @access public
* @param string $output The shortcode output
* @param string $tag The shortcode name
* @param array $atts The shortcode attributes array or empty string
* @return string
*/
public function add_usbid_to_html( $output, $tag, $atts ) {
if ( ! ( $usbid = us_arr_path( $atts, 'usbid' ) ) ) {
return $output;
}
// If `$tag` is `us_page_block` then add a wrapper to merge the output
if ( strpos( $tag , 'us_page_block' ) !== FALSE ) {
// Output styles from Page Block
if ( $page_block_id = us_arr_path( $atts, 'id' ) ) {
$jsoncss_data = get_post_meta( $page_block_id, '_us_jsoncss_data', TRUE );
if ( is_array( $jsoncss_data ) AND ! empty( $jsoncss_data ) ) {
$jsoncss_data_collection = array();
foreach ( $jsoncss_data as $jsoncss ) {
us_add_jsoncss_to_collection( $jsoncss, $jsoncss_data_collection );
}
if ( $custom_css = (string) us_jsoncss_compile( $jsoncss_data_collection ) ) {
$output .= '';
}
}
}
// Add a wrapper for the output
$output = '' . $output . '';
}
// Additional attributes for output
$output = preg_replace( '/(<[a-z\d]+)(.*)/', '$1 ' . 'data-usbid="' . $usbid . '"' . '$2', $output, 1 );
// Add custom styles to the output
if ( $jsoncss = us_arr_path( $atts, 'css', /* Default */FALSE ) ) {
$jsoncss_collection = array();
$unique_classname = (string) us_add_jsoncss_to_collection( $jsoncss, $jsoncss_collection );
// Replacing the existing class with a new one to avoid duplicates with the same design settings.
$new_unique_classname = 'usb_custom_' . str_replace( ':' , '', $usbid );
$output = str_replace( $unique_classname , $new_unique_classname, $output );
// Replacing classes in a jsoncss collection
$new_jsoncss_collection = array();
foreach ( $jsoncss_collection as $state => $collection ) {
$new_jsoncss_collection[ $state ][ $new_unique_classname ] = $collection[ $unique_classname ];
}
unset( $jsoncss_collection );
if ( $custom_css = (string) us_jsoncss_compile( $new_jsoncss_collection ) ) {
$output .= '';
}
}
return $output;
}
/**
* @param string $content
* @return bool
*/
public function fallback_content( &$content ) {
$content_changed = FALSE;
if ( preg_match_all( '/' . get_shortcode_regex() . '/s', $content, $matches ) ) {
if ( count( $matches[2] ) ) {
foreach ( $matches[2] as $i => $shortcode_name ) {
$shortcode_content_changed = $shortcode_changed = FALSE;
$shortcode_string = $matches[0][ $i ];
$shortcode_atts_string = $matches[3][ $i ];
$shortcode_content = $matches[5][ $i ];
$atts_filter = 'usb_fallback_atts_' . $shortcode_name;
$name_filter = 'usb_fallback_name_' . $shortcode_name;
if ( has_filter( $atts_filter ) ) {
$shortcode_atts = shortcode_parse_atts( $shortcode_atts_string );
if ( ! is_array( $shortcode_atts ) ) {
$shortcode_atts = array();
}
$fallback_atts = (array) apply_filters( $atts_filter, $shortcode_atts, $shortcode_content );
$shortcode_changed = TRUE;
$shortcode_atts_string = us_implode_atts( $fallback_atts, /* is shortcode */ TRUE );
}
if ( has_filter( $name_filter ) ) {
$shortcode_changed = TRUE;
$shortcode_name = apply_filters( $name_filter, $shortcode_name );
}
// Using recursion to fallback shortcodes inside this shortcode content
if ( ! empty( $shortcode_content ) ) {
$shortcode_content_changed = $this->fallback_content( $shortcode_content );
}
if ( $shortcode_changed OR $shortcode_content_changed ) {
$new_shortcode_string = '[' . $shortcode_name . $shortcode_atts_string . ']';
if ( ! empty( $shortcode_content ) ) {
$new_shortcode_string .= $shortcode_content;
}
if ( strpos( $shortcode_string, '[/' . $matches[2][ $i ] . ']' ) ) {
$new_shortcode_string .= '[/' . $shortcode_name . ']';
}
// Doing str_replace only once to avoid collisions
$pos = strpos( $content, $shortcode_string );
if ( $pos !== FALSE ) {
$content = substr_replace( $content, $new_shortcode_string, $pos, strlen( $shortcode_string ) );
}
$content_changed = TRUE;
}
}
}
}
return $content_changed;
}
/**
* Export of sources such as content and custom css
*
* NOTE:
* windov.$usb.content This is the content of the page
* window.$usb.pageCustomCss This is a custom custom css for the page
*
* @access public
*/
public function export_page_sources() {
/**
* Selector for find style node.
* NOTE: Since this is outputed in the bowels of the WPBakery Page Builder, we can correct it here.
*
* @var string
*/
$custom_css_selector = 'style[data-type=vc_custom-css]';
// JS code for import page data to USBuilder
$jscode = '
// Check the is iframe current window
if ( window.self !== window.top ) {
if ( typeof window.parent.$usb === "undefined" ) {
window.parent.$usb = {};
}
var _document = document,
_usb = window.parent.$usb;
_usb.content = _document.getElementById("usb-content").innerHTML || "";
_usb.pageCustomCss = ( _document.querySelector("'. $custom_css_selector .'") || {} ).innerHTML || ""; // Get data from stdout
}
';
// This is the content of the page
echo '';
}
}