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Ticket #42804: class.wp-styles.2.php

File class.wp-styles.2.php, 9.5 KB (added by sasiddiqui, 9 years ago)

Fixed the type issue with enqueue and inline style tags updated

Line 
1<?php
2/**
3 * Dependencies API: WP_Styles class
4 *
5 * @since 2.6.0
6 *
7 * @package WordPress
8 * @subpackage Dependencies
9 */
10
11/**
12 * Core class used to register styles.
13 *
14 * @since 2.6.0
15 *
16 * @see WP_Dependencies
17 */
18class WP_Styles extends WP_Dependencies {
19 /**
20 * Base URL for styles.
21 *
22 * Full URL with trailing slash.
23 *
24 * @since 2.6.0
25 * @var string
26 */
27 public $base_url;
28
29 /**
30 * URL of the content directory.
31 *
32 * @since 2.8.0
33 * @var string
34 */
35 public $content_url;
36
37 /**
38 * Default version string for stylesheets.
39 *
40 * @since 2.6.0
41 * @var string
42 */
43 public $default_version;
44
45 /**
46 * The current text direction.
47 *
48 * @since 2.6.0
49 * @var string
50 */
51 public $text_direction = 'ltr';
52
53 /**
54 * Holds a list of style handles which will be concatenated.
55 *
56 * @since 2.8.0
57 * @var string
58 */
59 public $concat = '';
60
61 /**
62 * Holds a string which contains style handles and their version.
63 *
64 * @since 2.8.0
65 * @deprecated 3.4.0
66 * @var string
67 */
68 public $concat_version = '';
69
70 /**
71 * Whether to perform concatenation.
72 *
73 * @since 2.8.0
74 * @var bool
75 */
76 public $do_concat = false;
77
78 /**
79 * Holds HTML markup of styles and additional data if concatenation
80 * is enabled.
81 *
82 * @since 2.8.0
83 * @var string
84 */
85 public $print_html = '';
86
87 /**
88 * Holds inline styles if concatenation is enabled.
89 *
90 * @since 3.3.0
91 * @var string
92 */
93 public $print_code = '';
94
95 /**
96 * List of default directories.
97 *
98 * @since 2.8.0
99 * @var array
100 */
101 public $default_dirs;
102
103 /**
104 * Constructor.
105 *
106 * @since 2.6.0
107 */
108 public function __construct() {
109 /**
110 * Fires when the WP_Styles instance is initialized.
111 *
112 * @since 2.6.0
113 *
114 * @param WP_Styles $this WP_Styles instance (passed by reference).
115 */
116 do_action_ref_array( 'wp_default_styles', array(&$this) );
117 }
118
119 /**
120 * Processes a style dependency.
121 *
122 * @since 2.6.0
123 *
124 * @see WP_Dependencies::do_item()
125 *
126 * @param string $handle The style's registered handle.
127 * @return bool True on success, false on failure.
128 */
129 public function do_item( $handle ) {
130 if ( !parent::do_item($handle) )
131 return false;
132
133 $obj = $this->registered[$handle];
134 if ( null === $obj->ver )
135 $ver = '';
136 else
137 $ver = $obj->ver ? $obj->ver : $this->default_version;
138
139 if ( isset($this->args[$handle]) )
140 $ver = $ver ? $ver . '&amp;' . $this->args[$handle] : $this->args[$handle];
141
142 if ( $this->do_concat ) {
143 if ( $this->in_default_dir($obj->src) && !isset($obj->extra['conditional']) && !isset($obj->extra['alt']) ) {
144 $this->concat .= "$handle,";
145 $this->concat_version .= "$handle$ver";
146
147 $this->print_code .= $this->print_inline_style( $handle, false );
148
149 return true;
150 }
151 }
152
153 if ( isset($obj->args) )
154 $media = esc_attr( $obj->args );
155 else
156 $media = 'all';
157
158 // A single item may alias a set of items, by having dependencies, but no source.
159 if ( ! $obj->src ) {
160 if ( $inline_style = $this->print_inline_style( $handle, false ) ) {
161 $inline_style = sprintf( "<style id='%s-inline-css'>\n%s\n</style>\n", esc_attr( $handle ), $inline_style );
162 if ( $this->do_concat ) {
163 $this->print_html .= $inline_style;
164 } else {
165 echo $inline_style;
166 }
167 }
168 return true;
169 }
170
171 $href = $this->_css_href( $obj->src, $ver, $handle );
172 if ( ! $href ) {
173 return true;
174 }
175
176 $rel = isset($obj->extra['alt']) && $obj->extra['alt'] ? 'alternate stylesheet' : 'stylesheet';
177 $title = isset($obj->extra['title']) ? "title='" . esc_attr( $obj->extra['title'] ) . "'" : '';
178
179 /**
180 * Filters the HTML link tag of an enqueued style.
181 *
182 * @since 2.6.0
183 * @since 4.3.0 Introduced the `$href` parameter.
184 * @since 4.5.0 Introduced the `$media` parameter.
185 *
186 * @param string $html The link tag for the enqueued style.
187 * @param string $handle The style's registered handle.
188 * @param string $href The stylesheet's source URL.
189 * @param string $media The stylesheet's media attribute.
190 */
191 $tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-css' $title href='$href' media='$media' />\n", $handle, $href, $media);
192 if ( 'rtl' === $this->text_direction && isset($obj->extra['rtl']) && $obj->extra['rtl'] ) {
193 if ( is_bool( $obj->extra['rtl'] ) || 'replace' === $obj->extra['rtl'] ) {
194 $suffix = isset( $obj->extra['suffix'] ) ? $obj->extra['suffix'] : '';
195 $rtl_href = str_replace( "{$suffix}.css", "-rtl{$suffix}.css", $this->_css_href( $obj->src , $ver, "$handle-rtl" ));
196 } else {
197 $rtl_href = $this->_css_href( $obj->extra['rtl'], $ver, "$handle-rtl" );
198 }
199
200 /** This filter is documented in wp-includes/class.wp-styles.php */
201 $rtl_tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-rtl-css' $title href='$rtl_href' media='$media' />\n", $handle, $rtl_href, $media );
202
203 if ( $obj->extra['rtl'] === 'replace' ) {
204 $tag = $rtl_tag;
205 } else {
206 $tag .= $rtl_tag;
207 }
208 }
209
210 $conditional_pre = $conditional_post = '';
211 if ( isset( $obj->extra['conditional'] ) && $obj->extra['conditional'] ) {
212 $conditional_pre = "<!--[if {$obj->extra['conditional']}]>\n";
213 $conditional_post = "<![endif]-->\n";
214 }
215
216 if ( $this->do_concat ) {
217 $this->print_html .= $conditional_pre;
218 $this->print_html .= $tag;
219 if ( $inline_style = $this->print_inline_style( $handle, false ) ) {
220 $this->print_html .= sprintf( "<style id='%s-inline-css'>\n%s\n</style>\n", esc_attr( $handle ), $inline_style );
221 }
222 $this->print_html .= $conditional_post;
223 } else {
224 echo $conditional_pre;
225 echo $tag;
226 $this->print_inline_style( $handle );
227 echo $conditional_post;
228 }
229
230 return true;
231 }
232
233 /**
234 * Adds extra CSS styles to a registered stylesheet.
235 *
236 * @since 3.3.0
237 *
238 * @param string $handle The style's registered handle.
239 * @param string $code String containing the CSS styles to be added.
240 * @return bool True on success, false on failure.
241 */
242 public function add_inline_style( $handle, $code ) {
243 if ( ! $code ) {
244 return false;
245 }
246
247 $after = $this->get_data( $handle, 'after' );
248 if ( ! $after ) {
249 $after = array();
250 }
251
252 $after[] = $code;
253
254 return $this->add_data( $handle, 'after', $after );
255 }
256
257 /**
258 * Prints extra CSS styles of a registered stylesheet.
259 *
260 * @since 3.3.0
261 *
262 * @param string $handle The style's registered handle.
263 * @param bool $echo Optional. Whether to echo the inline style instead of just returning it.
264 * Default true.
265 * @return string|bool False if no data exists, inline styles if `$echo` is true, true otherwise.
266 */
267 public function print_inline_style( $handle, $echo = true ) {
268 $output = $this->get_data( $handle, 'after' );
269
270 if ( empty( $output ) ) {
271 return false;
272 }
273
274 $output = implode( "\n", $output );
275
276 if ( ! $echo ) {
277 return $output;
278 }
279
280 printf( "<style id='%s-inline-css'>\n%s\n</style>\n", esc_attr( $handle ), $output );
281
282 return true;
283 }
284
285 /**
286 * Determines style dependencies.
287 *
288 * @since 2.6.0
289 *
290 * @see WP_Dependencies::all_deps()
291 *
292 * @param mixed $handles Item handle and argument (string) or item handles and arguments (array of strings).
293 * @param bool $recursion Internal flag that function is calling itself.
294 * @param int|false $group Group level: (int) level, (false) no groups.
295 * @return bool True on success, false on failure.
296 */
297 public function all_deps( $handles, $recursion = false, $group = false ) {
298 $r = parent::all_deps( $handles, $recursion, $group );
299 if ( ! $recursion ) {
300 /**
301 * Filters the array of enqueued styles before processing for output.
302 *
303 * @since 2.6.0
304 *
305 * @param array $to_do The list of enqueued styles about to be processed.
306 */
307 $this->to_do = apply_filters( 'print_styles_array', $this->to_do );
308 }
309 return $r;
310 }
311
312 /**
313 * Generates an enqueued style's fully-qualified URL.
314 *
315 * @since 2.6.0
316 *
317 * @param string $src The source of the enqueued style.
318 * @param string $ver The version of the enqueued style.
319 * @param string $handle The style's registered handle.
320 * @return string Style's fully-qualified URL.
321 */
322 public function _css_href( $src, $ver, $handle ) {
323 if ( !is_bool($src) && !preg_match('|^(https?:)?//|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) {
324 $src = $this->base_url . $src;
325 }
326
327 if ( !empty($ver) )
328 $src = add_query_arg('ver', $ver, $src);
329
330 /**
331 * Filters an enqueued style's fully-qualified URL.
332 *
333 * @since 2.6.0
334 *
335 * @param string $src The source URL of the enqueued style.
336 * @param string $handle The style's registered handle.
337 */
338 $src = apply_filters( 'style_loader_src', $src, $handle );
339 return esc_url( $src );
340 }
341
342 /**
343 * Whether a handle's source is in a default directory.
344 *
345 * @since 2.8.0
346 *
347 * @param string $src The source of the enqueued style.
348 * @return bool True if found, false if not.
349 */
350 public function in_default_dir( $src ) {
351 if ( ! $this->default_dirs )
352 return true;
353
354 foreach ( (array) $this->default_dirs as $test ) {
355 if ( 0 === strpos($src, $test) )
356 return true;
357 }
358 return false;
359 }
360
361 /**
362 * Processes items and dependencies for the footer group.
363 *
364 * HTML 5 allows styles in the body, grab late enqueued items and output them in the footer.
365 *
366 * @since 3.3.0
367 *
368 * @see WP_Dependencies::do_items()
369 *
370 * @return array Handles of items that have been processed.
371 */
372 public function do_footer_items() {
373 $this->do_items(false, 1);
374 return $this->done;
375 }
376
377 /**
378 * Resets class properties.
379 *
380 * @since 3.3.0
381 */
382 public function reset() {
383 $this->do_concat = false;
384 $this->concat = '';
385 $this->concat_version = '';
386 $this->print_html = '';
387 }
388}