242 lines
8.1 KiB
PHP
242 lines
8.1 KiB
PHP
<?php
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/**
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* Dependencies API: Styles functions
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*
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* @since 2.6.0
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*
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* @package WordPress
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* @subpackage Dependencies
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*/
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/**
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* Initialize $wp_styles if it has not been set.
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*
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* @global WP_Styles $wp_styles
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*
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* @since 4.2.0
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*
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* @return WP_Styles WP_Styles instance.
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*/
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function wp_styles() {
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global $wp_styles;
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if ( ! ( $wp_styles instanceof WP_Styles ) ) {
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$wp_styles = new WP_Styles();
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}
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return $wp_styles;
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}
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/**
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* Display styles that are in the $handles queue.
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*
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* Passing an empty array to $handles prints the queue,
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* passing an array with one string prints that style,
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* and passing an array of strings prints those styles.
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*
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* @global WP_Styles $wp_styles The WP_Styles object for printing styles.
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*
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* @since 2.6.0
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*
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* @param string|bool|array $handles Styles to be printed. Default 'false'.
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* @return string[] On success, an array of handles of processed WP_Dependencies items; otherwise, an empty array.
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*/
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function wp_print_styles( $handles = false ) {
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global $wp_styles;
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if ( '' === $handles ) { // For 'wp_head'.
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$handles = false;
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}
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if ( ! $handles ) {
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/**
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* Fires before styles in the $handles queue are printed.
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*
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* @since 2.6.0
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*/
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do_action( 'wp_print_styles' );
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}
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
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if ( ! ( $wp_styles instanceof WP_Styles ) ) {
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if ( ! $handles ) {
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return array(); // No need to instantiate if nothing is there.
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}
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}
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return wp_styles()->do_items( $handles );
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}
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/**
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* Add extra CSS styles to a registered stylesheet.
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*
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* Styles will only be added if the stylesheet is already in the queue.
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* Accepts a string $data containing the CSS. If two or more CSS code blocks
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* are added to the same stylesheet $handle, they will be printed in the order
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* they were added, i.e. the latter added styles can redeclare the previous.
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*
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* @see WP_Styles::add_inline_style()
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*
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* @since 3.3.0
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*
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* @param string $handle Name of the stylesheet to add the extra styles to.
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* @param string $data String containing the CSS styles to be added.
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* @return bool True on success, false on failure.
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*/
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function wp_add_inline_style( $handle, $data ) {
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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if ( false !== stripos( $data, '</style>' ) ) {
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_doing_it_wrong(
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__FUNCTION__,
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sprintf(
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/* translators: 1: <style>, 2: wp_add_inline_style() */
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__( 'Do not pass %1$s tags to %2$s.' ),
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'<code><style></code>',
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'<code>wp_add_inline_style()</code>'
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),
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'3.7.0'
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);
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$data = trim( preg_replace( '#<style[^>]*>(.*)</style>#is', '$1', $data ) );
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}
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return wp_styles()->add_inline_style( $handle, $data );
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}
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/**
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* Register a CSS stylesheet.
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*
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* @see WP_Dependencies::add()
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* @link https://www.w3.org/TR/CSS2/media.html#media-types List of CSS media types.
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*
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* @since 2.6.0
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* @since 4.3.0 A return value was added.
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*
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* @param string $handle Name of the stylesheet. Should be unique.
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* @param string|bool $src Full URL of the stylesheet, or path of the stylesheet relative to the WordPress root directory.
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* If source is set to false, stylesheet is an alias of other stylesheets it depends on.
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* @param string[] $deps Optional. An array of registered stylesheet handles this stylesheet depends on. Default empty array.
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* @param string|bool|null $ver Optional. String specifying stylesheet version number, if it has one, which is added to the URL
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* as a query string for cache busting purposes. If version is set to false, a version
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* number is automatically added equal to current installed WordPress version.
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* If set to null, no version is added.
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* @param string $media Optional. The media for which this stylesheet has been defined.
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* Default 'all'. Accepts media types like 'all', 'print' and 'screen', or media queries like
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* '(orientation: portrait)' and '(max-width: 640px)'.
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* @return bool Whether the style has been registered. True on success, false on failure.
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*/
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function wp_register_style( $handle, $src, $deps = array(), $ver = false, $media = 'all' ) {
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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return wp_styles()->add( $handle, $src, $deps, $ver, $media );
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}
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/**
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* Remove a registered stylesheet.
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*
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* @see WP_Dependencies::remove()
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*
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* @since 2.1.0
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*
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* @param string $handle Name of the stylesheet to be removed.
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*/
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function wp_deregister_style( $handle ) {
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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wp_styles()->remove( $handle );
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}
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/**
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* Enqueue a CSS stylesheet.
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*
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* Registers the style if source provided (does NOT overwrite) and enqueues.
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*
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* @see WP_Dependencies::add()
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* @see WP_Dependencies::enqueue()
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* @link https://www.w3.org/TR/CSS2/media.html#media-types List of CSS media types.
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*
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* @since 2.6.0
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*
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* @param string $handle Name of the stylesheet. Should be unique.
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* @param string $src Full URL of the stylesheet, or path of the stylesheet relative to the WordPress root directory.
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* Default empty.
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* @param string[] $deps Optional. An array of registered stylesheet handles this stylesheet depends on. Default empty array.
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* @param string|bool|null $ver Optional. String specifying stylesheet version number, if it has one, which is added to the URL
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* as a query string for cache busting purposes. If version is set to false, a version
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* number is automatically added equal to current installed WordPress version.
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* If set to null, no version is added.
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* @param string $media Optional. The media for which this stylesheet has been defined.
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* Default 'all'. Accepts media types like 'all', 'print' and 'screen', or media queries like
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* '(orientation: portrait)' and '(max-width: 640px)'.
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*/
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function wp_enqueue_style( $handle, $src = '', $deps = array(), $ver = false, $media = 'all' ) {
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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$wp_styles = wp_styles();
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if ( $src ) {
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$_handle = explode( '?', $handle );
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$wp_styles->add( $_handle[0], $src, $deps, $ver, $media );
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}
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$wp_styles->enqueue( $handle );
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}
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/**
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* Remove a previously enqueued CSS stylesheet.
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*
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* @see WP_Dependencies::dequeue()
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*
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* @since 3.1.0
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*
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* @param string $handle Name of the stylesheet to be removed.
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*/
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function wp_dequeue_style( $handle ) {
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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wp_styles()->dequeue( $handle );
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}
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/**
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* Check whether a CSS stylesheet has been added to the queue.
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*
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* @since 2.8.0
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*
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* @param string $handle Name of the stylesheet.
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* @param string $list Optional. Status of the stylesheet to check. Default 'enqueued'.
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* Accepts 'enqueued', 'registered', 'queue', 'to_do', and 'done'.
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* @return bool Whether style is queued.
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*/
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function wp_style_is( $handle, $list = 'enqueued' ) {
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_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
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return (bool) wp_styles()->query( $handle, $list );
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}
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/**
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* Add metadata to a CSS stylesheet.
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*
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* Works only if the stylesheet has already been registered.
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*
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* Possible values for $key and $value:
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* 'conditional' string Comments for IE 6, lte IE 7 etc.
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* 'rtl' bool|string To declare an RTL stylesheet.
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* 'suffix' string Optional suffix, used in combination with RTL.
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* 'alt' bool For rel="alternate stylesheet".
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* 'title' string For preferred/alternate stylesheets.
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*
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* @see WP_Dependencies::add_data()
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*
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* @since 3.6.0
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*
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* @param string $handle Name of the stylesheet.
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* @param string $key Name of data point for which we're storing a value.
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* Accepts 'conditional', 'rtl' and 'suffix', 'alt' and 'title'.
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* @param mixed $value String containing the CSS data to be added.
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* @return bool True on success, false on failure.
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*/
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function wp_style_add_data( $handle, $key, $value ) {
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return wp_styles()->add_data( $handle, $key, $value );
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}
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