array(
'description' => 'In WP Button reusable block, removing the tag will make button show as a simple string. Instead we can remove only the href att',
'condition_callback' => array( $this, 'str_starts_with' ),
'needle' => '',
'action' => array( $this, 'rm_href_attribute' ),
),
'button_blocks' => array(
'description' => 'In WP Button block, removing the tag will make button show as a simple string. Instead we can remove only the href att',
'condition_callback' => array( $this, 'is_specific_block' ),
'needle' => '',
'action' => array( $this, 'rm_href_attribute' ),
),
);*/
/**
* Executes the Processor's action.
*
* @param string $content
* @param string $link
* @param string $new_link
* @return string
*/
public function execute( string $content = '', string $link = '', string $new_link = '' ) {
if ( empty( $this->get_target_tags() ) || empty( str_replace( PHP_EOL, '', $content ) ) ) {
return $content;
}
$link = untrailingslashit( trim( $link, '\'"' ) );
$replacements = array();
foreach ( $this->get_target_tags() as $tag_name => $tag_atts ) {
if ( ! empty( $tag_atts ) ) {
foreach ( $tag_atts as $tag_att ) {
// First try with `DOMDocument` by default.
if ( apply_filters( 'wpmudev_blc_link_action_use_dom', true, 'unlink', $link ) ) {
$replacements = $this->use_domdocument_processor( $content, $link, $new_link, $tag_name, $tag_att );
} else {
// Optionally in case Regex is preferred, the filter `wpmudev_blc_link_action_use_dom` can be set to return false.
$replacements = $this->use_regex_processor( $content, $link, $new_link, $tag_name, $tag_att );
}
}
}
}
return empty( $replacements ) ? $content : str_replace( array_keys( $replacements ), array_values( $replacements ), $content );
}
public function get_block_att_value_replacement( string $search_term = null, string $new_term = null ) {
// When unlinking we can set the block att that holds the search link to empty string,
return '';
}
/**
* Processes content using `DOMDocument`.
* So far haven't found a way to utilize `WP_HTML_Tag_Processor` to unlink because the WP_HTML_Tag_Processor class does not return the element's markup, nor it's position in content, in order to replace with new markup.
*
* @param string $content
* @param string $link
* @param string $new_link
* @param string $tag_name
* @param string $tag_att
* @return array
*/
public function use_domdocument_processor( string $content = '', string $link = '', string $new_link = '', string $tag_name = '', string $tag_att = '' ) {
$dom = new \DOMDocument();
$replacements = array();
libxml_use_internal_errors( true );
$dom->loadHTML( $content );
foreach ( $dom->getElementsByTagName( $tag_name ) as $dom_link ) {
$search_markup = '';
$replacement_str = '';
$old_link = $dom_link->getAttribute( $tag_att );
if ( $this->links_match( $link, $old_link ) ) {
$search_markup = $dom->saveHTML( $dom_link );
$replacement_str = $dom_link->nodeValue;
if ( ! empty( $replacements[ $search_markup ] ) ) {
continue;
}
$special_actions = $this->content_special_actions( $content );
if ( ! empty( $special_actions ) ) {
$replacement_str = $search_markup;
foreach ( $special_actions as $special_case_key => $callback ) {
if ( is_callable( $callback ) ) {
$replacement_str = call_user_func(
$callback,
$replacement_str,
);
}
}
$replacements[ $search_markup ] = $replacement_str;
continue;
}
if ( apply_filters( 'wpmudev_blc_link_action_unlink_wrap', false, $link, $new_link ) ) {
$replacement_el = $dom->createElement( 'span', $replacement_str );
$replacement_el->setAttribute( 'class', apply_filters( 'wpmudev_blc_link_action_unlink_wrap_class', 'blc_unlinked', $link, $new_link ) );
$replacement_el->setAttribute( 'data-blc-orig-url', $link );
$replacement_str = $dom->saveHTML( $replacement_el );
}
$replacements[ $search_markup ] = $replacement_str;
}
}
return $replacements;
}
/**
* Processes content using regex.
* Regex is default way for wp version < 6.2, even if not preferred.
* The reason we use regex by default is because:
* 1. WP_HTML_Tag_Processor isn't introduced until v 6.2.
* 2. DOM will fix any invalid markup which might not be desired.
*
* @param string $content
* @param string $link
* @param string $new_link
* @param string $tag_name
* @param string $tag_att
* @return string
*/
public function use_regex_processor( string $content = '', string $link = '', string $new_link = '', string $tag_name = '', string $tag_att = '' ) {
$regexp = "<{$tag_name}\s[^>]*{$tag_att}=(\"??)([^\" >]*?)\\1[^>]*>(.*)<\/{$tag_name}>";
$replacements = array();
if ( preg_match_all( "/$regexp/siU", $content, $matches ) ) {
if ( ! empty( $matches[0] ) ) {
foreach ( $matches[0] as $key => $markup ) {
$old_link = untrailingslashit( trim( $matches[2][ $key ], '\'"' ) );
if ( $this->links_match( $link, $old_link ) ) {
$replacements[ $markup ] = $matches[3][ $key ];
}
}
}
}
return $replacements;
}
/**
* This is the callback function that is set in `$this->set_special_rules` method.
* It removes the `$tag_att` (default `href`) args from the `$tag_name` (default `` tag) of the input var ($content).
*
* @param string $content
* @param string $tag_name
* @param string $tag_att
* @return string
*/
public function rm_href_attribute( string $content = '', string $tag_name = 'a', string $tag_att = 'href' ) {
$dom = new \DOMDocument();
libxml_use_internal_errors( true );
$dom->loadHTML( $content );
foreach ( $dom->getElementsByTagName( $tag_name ) as $dom_link ) {
$dom_link->removeAttribute( $tag_att );
//$style = $dom_link->getAttribute( 'style' );
//$dom_link->setAttribute( 'style', "{$style} color: inherit; text-decoration: inherit;" );
$content = $dom->saveHTML( $dom_link );
}
return $content;
}
protected function set_special_rules() {
$special_strings = array(
'reusable_button_block' => array(
'description' => 'In WP Button reusable block, removing the tag will make button show as a simple string. Instead we can remove only the href att',
'condition_callback' => array( $this, 'str_starts_with' ),
'needle' => '',
'action' => array( $this, 'rm_href_attribute' ),
),
/*'button_blocks' => array(
'description' => 'In WP Button block, removing the tag will make button show as a simple string. Instead we can remove only the href att',
'condition_callback' => array( $this, 'is_block' ),
'needle' => null,
'action' => array( $this, 'rm_href_attribute' ),
),*/
);
$this->special_rules = $special_strings;
}
}