1 <?php

     2 /**

     3  * BackPress Styles Procedural API

     4  *

     5  * @since 2.6.0

     6  *

     7  * @package WordPress

     8  * @subpackage BackPress

     9  */

    10 

    11 /**

    12  * Display styles that are in the $handles queue.

    13  *

    14  * Passing an empty array to $handles prints the queue,

    15  * passing an array with one string prints that style,

    16  * and passing an array of strings prints those styles.

    17  *

    18  * @see do_action() Calls 'wp_print_styles' hook.

    19  * @global WP_Styles $wp_styles The WP_Styles object for printing styles.

    20  *

    21  * @since 2.6.0

    22  *

    23  * @param array|bool $handles Styles to be printed. Default 'false'.

    24  * @return array On success, a processed array of WP_Dependencies items; otherwise, an empty array.

    25  */

    26 function wp_print_styles( $handles = false ) {

    27 	if ( '' === $handles ) // for wp_head

    28 		$handles = false;

    29 

    30 	if ( ! $handles )

    31 		do_action( 'wp_print_styles' );

    32 

    33 	global $wp_styles;

    34 	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {

    35 		if ( ! did_action( 'init' ) )

    36 			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),

    37 				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );

    38 

    39 		if ( !$handles )

    40 			return array(); // No need to instantiate if nothing is there.

    41 		else

    42 			$wp_styles = new WP_Styles();

    43 	}

    44 

    45 	return $wp_styles->do_items( $handles );

    46 }

    47 

    48 /**

    49  * Add extra CSS styles to a registered stylesheet.

    50  *

    51  * Styles will only be added if the stylesheet in already in the queue.

    52  * Accepts a string $data containing the CSS. If two or more CSS code blocks

    53  * are added to the same stylesheet $handle, they will be printed in the order

    54  * they were added, i.e. the latter added styles can redeclare the previous.

    55  *

    56  * @see WP_Styles::add_inline_style()

    57  * @global WP_Styles $wp_styles The WP_Styles object for printing styles.

    58  *

    59  * @since 3.3.0

    60  *

    61  * @param string $handle Name of the stylesheet to add the extra styles to. Must be lowercase.

    62  * @param string $data   String containing the CSS styles to be added.

    63  * @return bool True on success, false on failure.

    64  */

    65 function wp_add_inline_style( $handle, $data ) {

    66 	global $wp_styles;

    67 	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {

    68 		if ( ! did_action( 'init' ) )

    69 			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),

    70 				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );

    71 		$wp_styles = new WP_Styles();

    72 	}

    73 

    74 	if ( false !== stripos( $data, '</style>' ) ) {

    75 		_doing_it_wrong( __FUNCTION__, 'Do not pass style tags to wp_add_inline_style().', '3.7' );

    76 		$data = trim( preg_replace( '#<style[^>]*>(.*)</style>#is', '$1', $data ) );

    77 	}

    78 

    79 	return $wp_styles->add_inline_style( $handle, $data );

    80 }

    81 

    82 /**

    83  * Register a CSS stylesheet.

    84  *

    85  * @see WP_Dependencies::add()

    86  * @link http://www.w3.org/TR/CSS2/media.html#media-types List of CSS media types.

    87  * @global WP_Styles $wp_styles The WP_Styles object for printing styles.

    88  *

    89  * @since 2.6.0

    90  *

    91  * @param string      $handle Name of the stylesheet.

    92  * @param string|bool $src    Path to the stylesheet from the WordPress root directory. Example: '/css/mystyle.css'.

    93  * @param array       $deps   An array of registered style handles this stylesheet depends on. Default empty array.

    94  * @param string|bool $ver    String specifying the stylesheet version number. Used to ensure that the correct version

    95  *                            is sent to the client regardless of caching. Default 'false'. Accepts 'false', 'null', or 'string'.

    96  * @param string      $media  Optional. The media for which this stylesheet has been defined.

    97  *                            Default 'all'. Accepts 'all', 'aural', 'braille', 'handheld', 'projection', 'print',

    98  *                            'screen', 'tty', or 'tv'.

    99  */

   100 function wp_register_style( $handle, $src, $deps = array(), $ver = false, $media = 'all' ) {

   101 	global $wp_styles;

   102 	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {

   103 		if ( ! did_action( 'init' ) )

   104 			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),

   105 				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );

   106 		$wp_styles = new WP_Styles();

   107 	}

   108 

   109 	$wp_styles->add( $handle, $src, $deps, $ver, $media );

   110 }

   111 

   112 /**

   113  * Remove a registered stylesheet.

   114  *

   115  * @see WP_Dependencies::remove()

   116  * @global WP_Styles $wp_styles The WP_Styles object for printing styles.

   117  *

   118  * @since 2.1.0

   119  *

   120  * @param string $handle Name of the stylesheet to be removed.

   121  */

   122 function wp_deregister_style( $handle ) {

   123 	global $wp_styles;

   124 	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {

   125 		if ( ! did_action( 'init' ) )

   126 			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),

   127 				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );

   128 		$wp_styles = new WP_Styles();

   129 	}

   130 

   131 	$wp_styles->remove( $handle );

   132 }

   133 

   134 /**

   135  * Enqueue a CSS stylesheet.

   136  *

   137  * Registers the style if source provided (does NOT overwrite) and enqueues.

   138  *

   139  * @see WP_Dependencies::add(), WP_Dependencies::enqueue()

   140  * @link http://www.w3.org/TR/CSS2/media.html#media-types List of CSS media types.

   141  * @global WP_Styles $wp_styles The WP_Styles object for printing styles.

   142  *

   143  * @since 2.6.0

   144  *

   145  * @param string      $handle Name of the stylesheet.

   146  * @param string|bool $src    Path to the stylesheet from the root directory of WordPress. Example: '/css/mystyle.css'.

   147  * @param array       $deps   An array of registered style handles this stylesheet depends on. Default empty array.

   148  * @param string|bool $ver    String specifying the stylesheet version number, if it has one. This parameter is used

   149  *                            to ensure that the correct version is sent to the client regardless of caching, and so

   150  *                            should be included if a version number is available and makes sense for the stylesheet.

   151  * @param string      $media  Optional. The media for which this stylesheet has been defined.

   152  *                            Default 'all'. Accepts 'all', 'aural', 'braille', 'handheld', 'projection', 'print',

   153  *                            'screen', 'tty', or 'tv'.

   154  */

   155 function wp_enqueue_style( $handle, $src = false, $deps = array(), $ver = false, $media = 'all' ) {

   156 	global $wp_styles;

   157 	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {

   158 		if ( ! did_action( 'init' ) )

   159 			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),

   160 				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );

   161 		$wp_styles = new WP_Styles();

   162 	}

   163 

   164 	if ( $src ) {

   165 		$_handle = explode('?', $handle);

   166 		$wp_styles->add( $_handle[0], $src, $deps, $ver, $media );

   167 	}

   168 	$wp_styles->enqueue( $handle );

   169 }

   170 

   171 /**

   172  * Remove a previously enqueued CSS stylesheet.

   173  *

   174  * @see WP_Dependencies::dequeue()

   175  * @global WP_Styles $wp_styles The WP_Styles object for printing styles.

   176  *

   177  * @since 3.1.0

   178  *

   179  * @param string $handle Name of the stylesheet to be removed.

   180  */

   181 function wp_dequeue_style( $handle ) {

   182 	global $wp_styles;

   183 	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {

   184 		if ( ! did_action( 'init' ) )

   185 			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),

   186 				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );

   187 		$wp_styles = new WP_Styles();

   188 	}

   189 

   190 	$wp_styles->dequeue( $handle );

   191 }

   192 

   193 /**

   194  * Check whether a CSS stylesheet has been added to the queue.

   195  *

   196  * @global WP_Styles $wp_styles The WP_Styles object for printing styles.

   197  *

   198  * @since 2.8.0

   199  *

   200  * @param string $handle Name of the stylesheet.

   201  * @param string $list   Optional. Status of the stylesheet to check. Default 'enqueued'.

   202  *                       Accepts 'enqueued', 'registered', 'queue', 'to_do', and 'done'.

   203  * @return bool Whether style is queued.

   204  */

   205 function wp_style_is( $handle, $list = 'enqueued' ) {

   206 	global $wp_styles;

   207 	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {

   208 		if ( ! did_action( 'init' ) )

   209 			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),

   210 				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );

   211 		$wp_styles = new WP_Styles();

   212 	}

   213 

   214 	return (bool) $wp_styles->query( $handle, $list );

   215 }

   216 

   217 /**

   218  * Add metadata to a CSS stylesheet.

   219  *

   220  * Works only if the stylesheet has already been added.

   221  *

   222  * Possible values for $key and $value:

   223  * 'conditional' string      Comments for IE 6, lte IE 7 etc.

   224  * 'rtl'         bool|string To declare an RTL stylesheet.

   225  * 'suffix'      string      Optional suffix, used in combination with RTL.

   226  * 'alt'         bool        For rel="alternate stylesheet".

   227  * 'title'       string      For preferred/alternate stylesheets.

   228  *

   229  * @see WP_Dependency::add_data()

   230  *

   231  * @since 3.6.0

   232  *

   233  * @param string $handle Name of the stylesheet.

   234  * @param string $key    Name of data point for which we're storing a value.

   235  *                       Accepts 'conditional', 'rtl' and 'suffix', 'alt' and 'title'.

   236  * @param mixed  $data   String containing the CSS data to be added.

   237  * @return bool True on success, false on failure.

   238  */

   239 function wp_style_add_data( $handle, $key, $value ) {

   240 	global $wp_styles;

   241 	return $wp_styles->add_data( $handle, $key, $value );

   242 }