* Also see the {@link https://codex.wordpress.org/Plugin_API Plugin API} for
* more information and examples on how to use a lot of these functions.
*
+ * This file should have no external dependencies.
+ *
* @package WordPress
* @subpackage Plugin
* @since 1.5.0
*/
// Initialize the filter globals.
-global $wp_filter, $wp_actions, $merged_filters, $wp_current_filter;
+require( dirname( __FILE__ ) . '/class-wp-hook.php' );
+
+/** @var WP_Hook[] $wp_filter */
+global $wp_filter, $wp_actions, $wp_current_filter;
-if ( ! isset( $wp_filter ) )
+if ( $wp_filter ) {
+ $wp_filter = WP_Hook::build_preinitialized_hooks( $wp_filter );
+} else {
$wp_filter = array();
+}
if ( ! isset( $wp_actions ) )
$wp_actions = array();
-if ( ! isset( $merged_filters ) )
- $merged_filters = array();
-
if ( ! isset( $wp_current_filter ) )
$wp_current_filter = array();
* @since 0.71
*
* @global array $wp_filter A multidimensional array of all hooks and the callbacks hooked to them.
- * @global array $merged_filters Tracks the tags that need to be merged for later. If the hook is added,
- * it doesn't need to run through that process.
*
* @param string $tag The name of the filter to hook the $function_to_add callback to.
* @param callable $function_to_add The callback to be run when the filter is applied.
* @return true
*/
function add_filter( $tag, $function_to_add, $priority = 10, $accepted_args = 1 ) {
- global $wp_filter, $merged_filters;
-
- $idx = _wp_filter_build_unique_id($tag, $function_to_add, $priority);
- $wp_filter[$tag][$priority][$idx] = array('function' => $function_to_add, 'accepted_args' => $accepted_args);
- unset( $merged_filters[ $tag ] );
+ global $wp_filter;
+ if ( ! isset( $wp_filter[ $tag ] ) ) {
+ $wp_filter[ $tag ] = new WP_Hook();
+ }
+ $wp_filter[ $tag ]->add_filter( $tag, $function_to_add, $priority, $accepted_args );
return true;
}
* return value.
*/
function has_filter($tag, $function_to_check = false) {
- // Don't reset the internal array pointer
- $wp_filter = $GLOBALS['wp_filter'];
-
- $has = ! empty( $wp_filter[ $tag ] );
-
- // Make sure at least one priority has a filter callback
- if ( $has ) {
- $exists = false;
- foreach ( $wp_filter[ $tag ] as $callbacks ) {
- if ( ! empty( $callbacks ) ) {
- $exists = true;
- break;
- }
- }
-
- if ( ! $exists ) {
- $has = false;
- }
- }
-
- if ( false === $function_to_check || false === $has )
- return $has;
+ global $wp_filter;
- if ( !$idx = _wp_filter_build_unique_id($tag, $function_to_check, false) )
+ if ( ! isset( $wp_filter[ $tag ] ) ) {
return false;
-
- foreach ( (array) array_keys($wp_filter[$tag]) as $priority ) {
- if ( isset($wp_filter[$tag][$priority][$idx]) )
- return $priority;
}
- return false;
+ return $wp_filter[ $tag ]->has_filter( $tag, $function_to_check );
}
/**
* @since 0.71
*
* @global array $wp_filter Stores all of the filters.
- * @global array $merged_filters Merges the filter hooks using this function.
* @global array $wp_current_filter Stores the list of current filters with the current one last.
*
* @param string $tag The name of the filter hook.
* @return mixed The filtered value after all hooked functions are applied to it.
*/
function apply_filters( $tag, $value ) {
- global $wp_filter, $merged_filters, $wp_current_filter;
+ global $wp_filter, $wp_current_filter;
$args = array();
if ( !isset($wp_filter['all']) )
$wp_current_filter[] = $tag;
- // Sort.
- if ( !isset( $merged_filters[ $tag ] ) ) {
- ksort($wp_filter[$tag]);
- $merged_filters[ $tag ] = true;
- }
-
- reset( $wp_filter[ $tag ] );
-
if ( empty($args) )
$args = func_get_args();
- do {
- foreach ( (array) current($wp_filter[$tag]) as $the_ )
- if ( !is_null($the_['function']) ){
- $args[1] = $value;
- $value = call_user_func_array($the_['function'], array_slice($args, 1, (int) $the_['accepted_args']));
- }
+ // don't pass the tag name to WP_Hook
+ array_shift( $args );
- } while ( next($wp_filter[$tag]) !== false );
+ $filtered = $wp_filter[ $tag ]->apply_filters( $value, $args );
array_pop( $wp_current_filter );
- return $value;
+ return $filtered;
}
/**
* functions hooked to `$tag` are supplied using an array.
*
* @global array $wp_filter Stores all of the filters
- * @global array $merged_filters Merges the filter hooks using this function.
* @global array $wp_current_filter Stores the list of current filters with the current one last
*
* @param string $tag The name of the filter hook.
* @return mixed The filtered value after all hooked functions are applied to it.
*/
function apply_filters_ref_array($tag, $args) {
- global $wp_filter, $merged_filters, $wp_current_filter;
+ global $wp_filter, $wp_current_filter;
// Do 'all' actions first
if ( isset($wp_filter['all']) ) {
if ( !isset($wp_filter['all']) )
$wp_current_filter[] = $tag;
- // Sort
- if ( !isset( $merged_filters[ $tag ] ) ) {
- ksort($wp_filter[$tag]);
- $merged_filters[ $tag ] = true;
- }
-
- reset( $wp_filter[ $tag ] );
-
- do {
- foreach ( (array) current($wp_filter[$tag]) as $the_ )
- if ( !is_null($the_['function']) )
- $args[0] = call_user_func_array($the_['function'], array_slice($args, 0, (int) $the_['accepted_args']));
-
- } while ( next($wp_filter[$tag]) !== false );
+ $filtered = $wp_filter[ $tag ]->apply_filters( $args[0], $args );
array_pop( $wp_current_filter );
- return $args[0];
+ return $filtered;
}
/**
* @since 1.2.0
*
* @global array $wp_filter Stores all of the filters
- * @global array $merged_filters Merges the filter hooks using this function.
*
* @param string $tag The filter hook to which the function to be removed is hooked.
* @param callable $function_to_remove The name of the function which should be removed.
* @return bool Whether the function existed before it was removed.
*/
function remove_filter( $tag, $function_to_remove, $priority = 10 ) {
- $function_to_remove = _wp_filter_build_unique_id( $tag, $function_to_remove, $priority );
-
- $r = isset( $GLOBALS['wp_filter'][ $tag ][ $priority ][ $function_to_remove ] );
+ global $wp_filter;
- if ( true === $r ) {
- unset( $GLOBALS['wp_filter'][ $tag ][ $priority ][ $function_to_remove ] );
- if ( empty( $GLOBALS['wp_filter'][ $tag ][ $priority ] ) ) {
- unset( $GLOBALS['wp_filter'][ $tag ][ $priority ] );
+ $r = false;
+ if ( isset( $wp_filter[ $tag ] ) ) {
+ $r = $wp_filter[ $tag ]->remove_filter( $tag, $function_to_remove, $priority );
+ if ( ! $wp_filter[ $tag ]->callbacks ) {
+ unset( $wp_filter[ $tag ] );
}
- if ( empty( $GLOBALS['wp_filter'][ $tag ] ) ) {
- $GLOBALS['wp_filter'][ $tag ] = array();
- }
- unset( $GLOBALS['merged_filters'][ $tag ] );
}
return $r;
*
* @since 2.7.0
*
- * @global array $wp_filter Stores all of the filters
- * @global array $merged_filters Merges the filter hooks using this function.
+ * @global array $wp_filter Stores all of the filters
*
* @param string $tag The filter to remove hooks from.
* @param int|bool $priority Optional. The priority number to remove. Default false.
* @return true True when finished.
*/
function remove_all_filters( $tag, $priority = false ) {
- global $wp_filter, $merged_filters;
+ global $wp_filter;
if ( isset( $wp_filter[ $tag ]) ) {
- if ( false === $priority ) {
- $wp_filter[ $tag ] = array();
- } elseif ( isset( $wp_filter[ $tag ][ $priority ] ) ) {
- $wp_filter[ $tag ][ $priority ] = array();
+ $wp_filter[ $tag ]->remove_all_filters( $priority );
+ if ( ! $wp_filter[ $tag ]->has_filters() ) {
+ unset( $wp_filter[ $tag ] );
}
}
- unset( $merged_filters[ $tag ] );
-
return true;
}
*
* @global array $wp_filter Stores all of the filters
* @global array $wp_actions Increments the amount of times action was triggered.
- * @global array $merged_filters Merges the filter hooks using this function.
* @global array $wp_current_filter Stores the list of current filters with the current one last
*
* @param string $tag The name of the action to be executed.
* functions hooked to the action. Default empty.
*/
function do_action($tag, $arg = '') {
- global $wp_filter, $wp_actions, $merged_filters, $wp_current_filter;
+ global $wp_filter, $wp_actions, $wp_current_filter;
if ( ! isset($wp_actions[$tag]) )
$wp_actions[$tag] = 1;
for ( $a = 2, $num = func_num_args(); $a < $num; $a++ )
$args[] = func_get_arg($a);
- // Sort
- if ( !isset( $merged_filters[ $tag ] ) ) {
- ksort($wp_filter[$tag]);
- $merged_filters[ $tag ] = true;
- }
-
- reset( $wp_filter[ $tag ] );
-
- do {
- foreach ( (array) current($wp_filter[$tag]) as $the_ )
- if ( !is_null($the_['function']) )
- call_user_func_array($the_['function'], array_slice($args, 0, (int) $the_['accepted_args']));
-
- } while ( next($wp_filter[$tag]) !== false );
+ $wp_filter[ $tag ]->do_action( $args );
array_pop($wp_current_filter);
}
* functions hooked to $tag< are supplied using an array.
* @global array $wp_filter Stores all of the filters
* @global array $wp_actions Increments the amount of times action was triggered.
- * @global array $merged_filters Merges the filter hooks using this function.
* @global array $wp_current_filter Stores the list of current filters with the current one last
*
* @param string $tag The name of the action to be executed.
* @param array $args The arguments supplied to the functions hooked to `$tag`.
*/
function do_action_ref_array($tag, $args) {
- global $wp_filter, $wp_actions, $merged_filters, $wp_current_filter;
+ global $wp_filter, $wp_actions, $wp_current_filter;
if ( ! isset($wp_actions[$tag]) )
$wp_actions[$tag] = 1;
if ( !isset($wp_filter['all']) )
$wp_current_filter[] = $tag;
- // Sort
- if ( !isset( $merged_filters[ $tag ] ) ) {
- ksort($wp_filter[$tag]);
- $merged_filters[ $tag ] = true;
- }
-
- reset( $wp_filter[ $tag ] );
-
- do {
- foreach ( (array) current($wp_filter[$tag]) as $the_ )
- if ( !is_null($the_['function']) )
- call_user_func_array($the_['function'], array_slice($args, 0, (int) $the_['accepted_args']));
-
- } while ( next($wp_filter[$tag]) !== false );
+ $wp_filter[ $tag ]->do_action( $args );
array_pop($wp_current_filter);
}
function _wp_call_all_hook($args) {
global $wp_filter;
- reset( $wp_filter['all'] );
- do {
- foreach ( (array) current($wp_filter['all']) as $the_ )
- if ( !is_null($the_['function']) )
- call_user_func_array($the_['function'], $args);
-
- } while ( next($wp_filter['all']) !== false );
+ $wp_filter['all']->do_all_hook( $args );
}
/**
scripts.mit.edu / autoinstalls / wordpress.git / blobdiff