WordPress/wp-includes/functions.wp-styles.php

219 lines
8.4 KiB
PHP

<?php
/**
* BackPress styles procedural API.
*
* @package BackPress
* @since r79
*/
/**
* Display styles that are in the queue or part of $handles.
*
* @since r79
* @uses do_action() Calls 'wp_print_styles' hook.
* @global object $wp_styles The WP_Styles object for printing styles.
*
* @param array|bool $handles Styles to be printed. An empty array prints the queue,
* an array with one string prints that style, and an array of strings prints those styles.
* @return bool True on success, false on failure.
*/
function wp_print_styles( $handles = false ) {
if ( '' === $handles ) // for wp_head
$handles = false;
if ( ! $handles )
do_action( 'wp_print_styles' );
global $wp_styles;
if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
if ( ! did_action( 'init' ) )
_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
if ( !$handles )
return array(); // No need to instantiate if nothing is there.
else
$wp_styles = new WP_Styles();
}
return $wp_styles->do_items( $handles );
}
/**
* Adds extra CSS.
*
* Works only if the stylesheet has already been added.
* Accepts a string $data containing the CSS. If two or more CSS code blocks are
* added to the same stylesheet $handle, they will be printed in the order
* they were added, i.e. the latter added styles can redeclare the previous.
*
* @since 3.3.0
* @see WP_Scripts::add_inline_style()
*/
function wp_add_inline_style( $handle, $data ) {
global $wp_styles;
if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
if ( ! did_action( 'init' ) )
_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
$wp_styles = new WP_Styles();
}
return $wp_styles->add_inline_style( $handle, $data );
}
/**
* Register CSS style file.
*
* @since r79
* @see WP_Styles::add() For additional information.
* @global object $wp_styles The WP_Styles object for printing styles.
* @link http://www.w3.org/TR/CSS2/media.html#media-types List of CSS media types.
*
* @param string $handle Name of the stylesheet.
* @param string|bool $src Path to the stylesheet from the root directory of WordPress. Example: '/css/mystyle.css'.
* @param array $deps Array of handles of any stylesheet that this stylesheet depends on.
* (Stylesheets that must be loaded before this stylesheet.) Pass an empty array if there are no dependencies.
* @param string|bool $ver String specifying the stylesheet version number. Set to null to disable.
* Used to ensure that the correct version is sent to the client regardless of caching.
* @param string $media The media for which this stylesheet has been defined.
*/
function wp_register_style( $handle, $src, $deps = array(), $ver = false, $media = 'all' ) {
global $wp_styles;
if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
if ( ! did_action( 'init' ) )
_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
$wp_styles = new WP_Styles();
}
$wp_styles->add( $handle, $src, $deps, $ver, $media );
}
/**
* Remove a registered CSS file.
*
* @since r79
* @see WP_Styles::remove() For additional information.
* @global object $wp_styles The WP_Styles object for printing styles.
*
* @param string $handle Name of the stylesheet.
*/
function wp_deregister_style( $handle ) {
global $wp_styles;
if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
if ( ! did_action( 'init' ) )
_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
$wp_styles = new WP_Styles();
}
$wp_styles->remove( $handle );
}
/**
* Enqueue a CSS style file.
*
* Registers the style if src provided (does NOT overwrite) and enqueues.
*
* @since r79
* @see WP_Styles::add(), WP_Styles::enqueue()
* @global object $wp_styles The WP_Styles object for printing styles.
* @link http://www.w3.org/TR/CSS2/media.html#media-types List of CSS media types.
*
* @param string $handle Name of the stylesheet.
* @param string|bool $src Path to the stylesheet from the root directory of WordPress. Example: '/css/mystyle.css'.
* @param array $deps Array of handles (names) of any stylesheet that this stylesheet depends on.
* (Stylesheets that must be loaded before this stylesheet.) Pass an empty array if there are no dependencies.
* @param string|bool $ver String specifying the stylesheet version number, if it has one. This parameter
* is used to ensure that the correct version is sent to the client regardless of caching, and so should be included
* if a version number is available and makes sense for the stylesheet.
* @param string $media The media for which this stylesheet has been defined.
*/
function wp_enqueue_style( $handle, $src = false, $deps = array(), $ver = false, $media = 'all' ) {
global $wp_styles;
if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
if ( ! did_action( 'init' ) )
_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
$wp_styles = new WP_Styles();
}
if ( $src ) {
$_handle = explode('?', $handle);
$wp_styles->add( $_handle[0], $src, $deps, $ver, $media );
}
$wp_styles->enqueue( $handle );
}
/**
* Remove an enqueued style.
*
* @since WP 3.1
* @see WP_Styles::dequeue() For parameter information.
*/
function wp_dequeue_style( $handle ) {
global $wp_styles;
if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
if ( ! did_action( 'init' ) )
_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
$wp_styles = new WP_Styles();
}
$wp_styles->dequeue( $handle );
}
/**
* Check whether style has been added to WordPress Styles.
*
* By default, checks if the style has been enqueued. You can also
* pass 'registered' to $list, to see if the style is registered,
* and you can check processing statuses with 'to_do' and 'done'.
*
* @since WP unknown; BP unknown
* @global object $wp_styles The WP_Styles object for printing styles.
*
* @param string $handle Name of the stylesheet.
* @param string $list Optional. Defaults to 'enqueued'. Values are
* 'registered', 'enqueued' (or 'queue'), 'to_do', and 'done'.
* @return bool Whether style is in the list.
*/
function wp_style_is( $handle, $list = 'enqueued' ) {
global $wp_styles;
if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
if ( ! did_action( 'init' ) )
_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
$wp_styles = new WP_Styles();
}
return (bool) $wp_styles->query( $handle, $list );
}
/**
* Add metadata to CSS style files.
*
* Works only if the stylesheet has already been added.
* Possible values for $key and $value:
*
* conditional string comments for IE 6, lte IE 7 etc.
* rtl bool|string to declare an RTL stylesheet
* suffix string optional suffix, used in combination with RTL
* alt bool for rel="alternate stylesheet"
* title string for preferred/alternate stylesheets
*
* @since 3.6.0
* @see WP_Dependencies::add_data()
*
* @param string $handle Script name.
* @param string $key Name of data point for which we're storing a value.
* Values are 'conditional', 'rtl', and 'suffix', and 'alt', 'title'.
* @param mixed $data
* @return bool True on success, false on failure.
*/
function wp_style_add_data( $handle, $key, $value ) {
global $wp_styles;
return $wp_styles->add_data( $handle, $key, $value );
}