tags are okay.
*
* @see The list of style rules allowed: https://core.trac.wordpress.org/browser/tags/5.2/src/wp-includes/kses.php#L2069
* @see https://github.com/gambitph/Stackable/issues/184
*
* @param array $styles Allowed CSS style rules.
*
* @return array Modified CSS style rules.
*/
function stackable_allow_safe_style_css( $styles ) {
return array_merge( $styles, array(
'border-radius',
'opacity',
'justify-content',
'display',
// SVG gradients use this.
'stop-opacity',
'stop-color',
) );
}
add_filter( 'safe_style_css', 'stackable_allow_safe_style_css' );
}
if ( ! function_exists( 'stackable_allow_wp_kses_allowed_html' ) ) {
/**
* Fix block saving for Non-Super-Admins (no unfiltered_html capability).
* For Non-Super-Admins, some styles & HTML tags/attributes are removed upon saving,
* this allows Stackable HTML tags & attributes from being saved.
*
* For every Stackable block, add the HTML tags and attributes used here.
*
* @see The list of tags & attributes currently allowed: https://core.trac.wordpress.org/browser/tags/5.2/src/wp-includes/kses.php#L61
* @see https://github.com/gambitph/Stackable/issues/184
*
* @param array $tags Allowed HTML tags & attributes.
* @param string $context The context wherein the HTML is being filtered.
*
* @return array Modified HTML tags & attributes.
*/
function stackable_allow_wp_kses_allowed_html( $tags, $context ) {
$tags['style'] = array();
// Used by Separators & Icons.
$tags['svg'] = array(
'viewbox' => true,
'filter' => true,
'enablebackground' => true,
'xmlns' => true,
'class' => true,
'preserveaspectratio' => true,
'aria-hidden' => true,
'data-*' => true,
'role' => true,
'height' => true,
'width' => true,
'style' => true,
);
$tags['path'] = array(
'class' => true,
'fill' => true,
'd' => true,
);
$tags['filter'] = array(
'id' => true,
);
$tags['fegaussianblur'] = array(
'in' => true,
'stddeviation' => true,
);
$tags['fecomponenttransfer'] = array();
$tags['fefunca'] = array(
'type' => true,
'slope' => true,
);
$tags['femerge'] = array();
$tags['femergenode'] = array(
'in' => true,
);
// SVG gradients.
$tags['defs'] = array();
$tags['stop'] = array(
'offset' => true,
'style' => true,
'stop-color' => true,
'stop-opacity' => true,
);
$tags['lineargradient'] = array( // Intentionally made this lowercase since tags do not recognize caps.
'id' => true,
'x1' => true,
'x2' => true,
'y1' => true,
'y2' => true,
);
_stackable_common_attributes( $tags, 'div' );
_stackable_common_attributes( $tags, 'h1' );
_stackable_common_attributes( $tags, 'h2' );
_stackable_common_attributes( $tags, 'h3' );
_stackable_common_attributes( $tags, 'h4' );
_stackable_common_attributes( $tags, 'h5' );
_stackable_common_attributes( $tags, 'h6' );
_stackable_common_attributes( $tags, 'svg' );
return $tags;
}
function _stackable_common_attributes( &$tags, $tag ) {
$tags[ $tag ]['aria-hidden'] = true; // Used by Separators & Icons
$tags[ $tag ]['aria-expanded'] = true; // Used by Expand block.
$tags[ $tag ]['aria-level'] = true; // Used by Accordion block.
$tags[ $tag ]['role'] = true; // Used by Accordion block.
$tags[ $tag ]['tabindex'] = true; // Used by Accordion block.
}
add_filter( 'wp_kses_allowed_html', 'stackable_allow_wp_kses_allowed_html', 10, 2 );
}
if ( ! function_exists( 'stackable_fix_gt_style_errors' ) ) {
/**
* Fix block saving for Non-Super-Admins (no unfiltered_html capability).
* For Non-Super-Admins, style tags with the ">" symbol are replaced with
* ">", ">" is used across a lot of Stackable block styles. When these
* are replaced, the blocks may show an error, and the blocks styles will
* not take effect in the frontend.
*
* This function checks the page content for Stackable blocks that use the
* ">" in styles, then replaces them with the correct ">" symbol.
*
* We do the replacement upon post saving and not on `render_block` so that
* we don't need to do any processing for the frontend.
*
* @see Issue: https://core.trac.wordpress.org/ticket/48873#ticket
* @see https://github.com/gambitph/Stackable/issues/510
*
* @param array $data Post data
*
* @return array Post data to save
*/
function stackable_fix_gt_style_errors( $data ) {
if ( empty( $data['post_content'] ) ) {
return $data;
}
// Check whether there are any ">" symbols inside %s', function( $matches ) {
return '';
}, $matches[0] );
return $content;
}, $data['post_content'] );
return $data;
}
add_filter( 'wp_insert_post_data' , 'stackable_fix_gt_style_errors' , 99, 1 );
}