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Polylang / 1.5.2
Polylang v1.5.2
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← All changes | include/language.php +78 -446 3.01.5.2 View file →
@@ -1,486 +1,118 @@
1 1 <?php
2 -/**
3 - * @package Polylang
4 - */
5 2
6 -/**
7 - * A language object is made of two terms in 'language' and 'term_language' taxonomies.
8 - * Manipulating only one object per language instead of two terms should make things easier.
3 +/*
4 + * a language object is made of two terms in 'language' and 'term_language' taxonomies
5 + * manipulating only one object per language instead of two terms should make things easier
9 6 *
7 + * properties:
8 + * term_id => id of term in 'language' taxonomy
9 + * name => language name. Ex: English
10 + * slug => language code used in url. Ex: en
11 + * term_group => order of the language when displayed in a list of languages
12 + * term_taxonomy_id => term taxonomy id in 'language' taxonomy
13 + * taxonomy => 'language'
14 + * description => language locale for backward compatibility
15 + * parent => 0 / not used
16 + * count => number of posts and pages in that language
17 + * tl_term_id => id of the term in 'term_language' taxonomy
18 + * tl_term_taxonomy_id => term taxonomy id in 'term_language' taxonomy
19 + * tl_count => number of terms in that language (not used by Polylang)
20 + * locale => language locale. Ex: en_US
21 + * is_rtl => 1 if the language is rtl
22 + * flag_url => url of the flag
23 + * flag => html img of the flag
24 + * home_url => home url in this language
25 + * search_url => home url to use in search forms
26 + * host => host of this language
27 + * mo_id => id of the post storing strings translations
28 + *
10 29 * @since 1.2
11 30 */
12 31 class PLL_Language {
13 - /**
14 - * Id of the term in 'language' taxonomy.
15 - *
16 - * @var int
17 - */
18 - public $term_id;
19 32
20 - /**
21 - * Language name. Ex: English.
33 + /*
34 + * constructor: builds a language object given its two corresponding terms in language and term_language taxonomies
22 35 *
23 - * @var string
24 - */
25 - public $name;
26 -
27 - /**
28 - * Language code used in url. Ex: en.
29 - *
30 - * @var string
31 - */
32 - public $slug;
33 -
34 - /**
35 - * Order of the language when displayed in a list of languages.
36 - *
37 - * @var int
38 - */
39 - public $term_group;
40 -
41 - /**
42 - * Term taxonomy id in 'language' taxonomy.
43 - *
44 - * @var int
45 - */
46 - public $term_taxonomy_id;
47 -
48 - /**
49 - * Number of posts and pages in that language.
50 - *
51 - * @var int
52 - */
53 - public $count;
54 -
55 - /**
56 - * Id of the term in 'term_language' taxonomy.
57 - *
58 - * @var int
59 - */
60 - public $tl_term_id;
61 -
62 - /**
63 - * Term taxonomy id in 'term_language' taxonomy.
64 - *
65 - * @var int
66 - */
67 - public $tl_term_taxonomy_id;
68 -
69 - /**
70 - * Number of terms in that language.
71 - *
72 - * @var int
73 - */
74 - public $tl_count;
75 -
76 - /**
77 - * WordPress language locale. Ex: en_US.
78 - *
79 - * @var string
80 - */
81 - public $locale;
82 -
83 - /**
84 - * 1 if the language is rtl, 0 otherwise.
85 - *
86 - * @var int
87 - */
88 - public $is_rtl;
89 -
90 - /**
91 - * W3C locale.
92 - *
93 - * @var string.
94 - */
95 - public $w3c;
96 -
97 - /**
98 - * Facebook locale.
99 - *
100 - * @var string.
101 - */
102 - public $facebook;
103 -
104 - /**
105 - * Home url in this language.
106 - *
107 - * @var string
108 - */
109 - public $home_url;
110 -
111 - /**
112 - * Home url to use in search forms.
113 - *
114 - * @var string
115 - */
116 - public $search_url;
117 -
118 - /**
119 - * Host corresponding to this language.
120 - *
121 - * @var string
122 - */
123 - public $host;
124 -
125 - /**
126 - * Id of the post storing strings translations.
127 - *
128 - * @var int
129 - */
130 - public $mo_id;
131 -
132 - /**
133 - * Id of the page on front in this language ( set from pll_languages_list filter ).
134 - *
135 - * @var int
136 - */
137 - public $page_on_front;
138 -
139 - /**
140 - * Id of the page for posts in this language ( set from pll_languages_list filter ).
141 - *
142 - * @var int
143 - */
144 - public $page_for_posts;
145 -
146 - /**
147 - * Code of the flag.
148 - *
149 - * @var string
150 - */
151 - public $flag_code;
152 -
153 - /**
154 - * Url of the flag.
155 - *
156 - * @var string
157 - */
158 - public $flag_url;
159 -
160 - /**
161 - * Html markup of the flag.
162 - *
163 - * @var string
164 - */
165 - public $flag;
166 -
167 - /**
168 - * Url of the custom flag if it exists.
169 - *
170 - * @var string
171 - */
172 - protected $custom_flag_url;
173 -
174 - /**
175 - * Html markup of the custom flag if it exists.
176 - *
177 - * @var string
178 - */
179 - protected $custom_flag;
180 -
181 - /**
182 - * Constructor: builds a language object given its two corresponding terms in 'language' and 'term_language' taxonomies.
183 - *
184 36 * @since 1.2
185 37 *
186 - * @param WP_Term|array $language Term in 'language' taxonomy or language object properties stored as an array.
187 - * @param WP_Term $term_language Corresponding 'term_language' term.
38 + * @param object $language 'language' term
39 + * @param object $term_language corresponding 'term_language' term
188 40 */
189 - public function __construct( $language, $term_language = null ) {
190 - // Build the object from all properties stored as an array.
191 - if ( is_array( $language ) ) {
192 - foreach ( $language as $prop => $value ) {
193 - $this->$prop = $value;
194 - }
195 - }
41 + public function __construct($language, $term_language) {
42 + foreach ($language as $prop => $value)
43 + $this->$prop = in_array($prop, array('term_id', 'term_taxonomy_id', 'count')) ? (int) $language->$prop : $language->$prop;
196 44
197 - // Build the object from taxonomy terms.
198 - elseif ( ! empty( $term_language ) ) {
199 - $this->term_id = (int) $language->term_id;
200 - $this->name = $language->name;
201 - $this->slug = $language->slug;
202 - $this->term_group = (int) $language->term_group;
203 - $this->term_taxonomy_id = (int) $language->term_taxonomy_id;
204 - $this->count = (int) $language->count;
45 + // although it would be convenient here, don't assume the term is shared between taxonomies as it may not be the case in future
46 + // http://make.wordpress.org/core/2013/07/28/potential-roadmap-for-taxonomy-meta-and-post-relationships/
47 + $this->tl_term_id = (int) $term_language->term_id;
48 + $this->tl_term_taxonomy_id = (int) $term_language->term_taxonomy_id;
49 + $this->tl_count = (int) $term_language->count;
205 50
206 - $this->tl_term_id = (int) $term_language->term_id;
207 - $this->tl_term_taxonomy_id = (int) $term_language->term_taxonomy_id;
208 - $this->tl_count = (int) $term_language->count;
51 + $description = maybe_unserialize($language->description);
52 + $this->locale = $description['locale'];
53 + $this->is_rtl = $description['rtl'];
209 54
210 - // The description field can contain any property.
211 - $description = maybe_unserialize( $language->description );
212 - foreach ( $description as $prop => $value ) {
213 - 'rtl' == $prop ? $this->is_rtl = $value : $this->$prop = $value;
214 - }
55 + $this->description = &$this->locale; // backward compatibility with Polylang < 1.2
215 56
216 - $this->mo_id = PLL_MO::get_id( $this );
217 -
218 - $languages = include POLYLANG_DIR . '/settings/languages.php';
219 - $this->w3c = isset( $languages[ $this->locale ]['w3c'] ) ? $languages[ $this->locale ]['w3c'] : str_replace( '_', '-', $this->locale );
220 - if ( isset( $languages[ $this->locale ]['facebook'] ) ) {
221 - $this->facebook = $languages[ $this->locale ]['facebook'];
222 - }
223 - }
57 + $this->mo_id = PLL_MO::get_id($this);
224 58 }
225 59
226 - /**
227 - * Get the flag informations:
60 + /*
61 + * sets flag_url and flag properties
228 62 *
229 - * @since 2.6
230 - *
231 - * @param string $code Flag code.
232 - * @return array {
233 - * Flag informations.
234 - *
235 - * @type string $url Flag url.
236 - * @type string $src Optional, src attribute value if different of the url, for example if base64 encoded.
237 - * @type int $width Optional, flag width in pixels.
238 - * @type int $height Optional, flag height in pixels.
239 - * }
240 - */
241 - public static function get_flag_informations( $code ) {
242 - $flag = array( 'url' => '' );
243 -
244 - // Polylang builtin flags.
245 - if ( ! empty( $code ) && file_exists( POLYLANG_DIR . ( $file = '/flags/' . $code . '.png' ) ) ) {
246 - $flag['url'] = plugins_url( $file, POLYLANG_FILE );
247 -
248 - // If base64 encoded flags are preferred.
249 - if ( ! defined( 'PLL_ENCODED_FLAGS' ) || PLL_ENCODED_FLAGS ) {
250 - list( $flag['width'], $flag['height'] ) = getimagesize( POLYLANG_DIR . $file );
251 - $file_contents = file_get_contents( POLYLANG_DIR . $file ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
252 - $flag['src'] = 'data:image/png;base64,' . base64_encode( $file_contents ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode
253 - }
254 - }
255 -
256 - /**
257 - * Filters flag informations:
258 - *
259 - * @since 2.4
260 - *
261 - * @param array $flag {
262 - * Information about the flag.
263 - *
264 - * @type string $url Flag url.
265 - * @type string $src Optional, src attribute value if different of the url, for example if base64 encoded.
266 - * @type int $width Optional, flag width in pixels.
267 - * @type int $height Optional, flag height in pixels.
268 - * }
269 - * @param string $code Flag code.
270 - */
271 - $flag = apply_filters( 'pll_flag', $flag, $code );
272 -
273 - $flag['url'] = esc_url_raw( $flag['url'] );
274 -
275 - if ( empty( $flag['src'] ) ) {
276 - $flag['src'] = esc_url( set_url_scheme( $flag['url'], 'relative' ) );
277 - }
278 -
279 - return $flag;
280 - }
281 -
282 - /**
283 - * Sets flag_url and flag properties.
284 - *
285 63 * @since 1.2
286 - *
287 - * @return void
288 64 */
289 65 public function set_flag() {
290 - $flags = array( 'flag' => self::get_flag_informations( $this->flag_code ) );
66 + if (file_exists(POLYLANG_DIR.($file = '/flags/'.$this->locale.'.png')))
67 + $url = POLYLANG_URL.$file;
291 68
292 - // Custom flags?
293 - $directories = array(
294 - PLL_LOCAL_DIR,
295 - get_stylesheet_directory() . '/polylang',
296 - get_template_directory() . '/polylang',
297 - );
69 + // overwrite with custom flags
70 + // never use custom flags on admin side
71 + if (!PLL_ADMIN && ( file_exists(PLL_LOCAL_DIR.($file = '/'.$this->locale.'.png')) || file_exists(PLL_LOCAL_DIR.($file = '/'.$this->locale.'.jpg')) ))
72 + $url = PLL_LOCAL_URL.$file;
298 73
299 - foreach ( $directories as $dir ) {
300 - if ( file_exists( $file = "{$dir}/{$this->locale}.png" ) || file_exists( $file = "{$dir}/{$this->locale}.jpg" ) || file_exists( $file = "{$dir}/{$this->locale}.svg" ) ) {
301 - $flags['custom_flag']['url'] = content_url( '/' . str_replace( WP_CONTENT_DIR, '', $file ) );
302 - break;
303 - }
304 - }
74 + $this->flag_url = empty($url) ? '' : esc_url($url);
305 75
306 - /**
307 - * Filters the custom flag informations.
308 - *
309 - * @param array $flag {
310 - * Information about the custom flag.
311 - *
312 - * @type string $url Flag url.
313 - * @type string $src Optional, src attribute value if different of the url, for example if base64 encoded.
314 - * @type int $width Optional, flag width in pixels.
315 - * @type int $height Optional, flag height in pixels.
316 - * }
317 - * @param string $code Flag code.
318 - *
319 - * @since 2.4
320 - */
321 - $flags['custom_flag'] = apply_filters( 'pll_custom_flag', empty( $flags['custom_flag'] ) ? null : $flags['custom_flag'], $this->flag_code );
322 -
323 - if ( ! empty( $flags['custom_flag']['url'] ) ) {
324 - if ( empty( $flags['custom_flag']['src'] ) ) {
325 - $flags['custom_flag']['src'] = esc_url( set_url_scheme( $flags['custom_flag']['url'], 'relative' ) );
326 - }
327 -
328 - $flags['custom_flag']['url'] = esc_url_raw( $flags['custom_flag']['url'] );
329 - } else {
330 - unset( $flags['custom_flag'] );
331 - }
332 -
333 - /**
334 - * Filters the flag title attribute.
335 - * Defaults to the language name.
336 - *
337 - * @since 0.7
338 - *
339 - * @param string $title The flag title attribute.
340 - * @param string $slug The language code.
341 - * @param string $locale The language locale.
342 - */
343 - $title = apply_filters( 'pll_flag_title', $this->name, $this->slug, $this->locale );
344 -
345 - foreach ( $flags as $key => $flag ) {
346 - $this->{$key . '_url'} = empty( $flag['url'] ) ? '' : $flag['url'];
347 -
348 - /**
349 - * Filters the html markup of a flag.
350 - *
351 - * @since 1.0.2
352 - *
353 - * @param string $flag Html markup of the flag or empty string.
354 - * @param string $slug Language code.
355 - */
356 - $this->{$key} = apply_filters(
357 - 'pll_get_flag',
358 - self::get_flag_html( $flag, $title, $this->name ),
359 - $this->slug
360 - );
361 - }
76 + $this->flag = apply_filters('pll_get_flag', empty($this->flag_url) ? '' :
77 + sprintf(
78 + '<img src="%s" title="%s" alt="%s" />',
79 + $this->flag_url,
80 + esc_attr(apply_filters('pll_flag_title', $this->name, $this->slug, $this->locale)),
81 + esc_attr($this->name)
82 + ));
362 83 }
363 84
364 - /**
365 - * Get HTML code for flag.
85 + /*
86 + * updates post and term count
366 87 *
367 - * @since 2.7
368 - *
369 - * @param array $flag Flag properties: src, width and height.
370 - * @param string $title Optional title attribute.
371 - * @param string $alt Optional alt attribute.
372 - * @return string
373 - */
374 - public static function get_flag_html( $flag, $title = '', $alt = '' ) {
375 - if ( empty( $flag['src'] ) ) {
376 - return '';
377 - }
378 -
379 - $alt_attr = empty( $alt ) ? '' : sprintf( ' alt="%s"', esc_attr( $alt ) );
380 - $width_attr = empty( $flag['width'] ) ? '' : sprintf( ' width="%s"', (int) $flag['width'] );
381 - $height_attr = empty( $flag['height'] ) ? '' : sprintf( ' height="%s"', (int) $flag['height'] );
382 -
383 - $style = '';
384 - $sizes = array_intersect_key( $flag, array_flip( array( 'width', 'height' ) ) );
385 -
386 - if ( ! empty( $sizes ) ) {
387 - array_walk(
388 - $sizes,
389 - function ( &$value, $key ) {
390 - $value = sprintf( '%s: %dpx;', esc_attr( $key ), (int) $value );
391 - }
392 - );
393 - $style = sprintf( ' style="%s"', implode( ' ', $sizes ) );
394 - }
395 -
396 - return sprintf(
397 - '<img src="%s"%s%s%s%s />',
398 - $flag['src'],
399 - $alt_attr,
400 - $width_attr,
401 - $height_attr,
402 - $style
403 - );
404 - }
405 -
406 - /**
407 - * Returns the html of the custom flag if any, or the default flag otherwise.
408 - *
409 - * @since 2.8
410 - *
411 - * @return string
412 - */
413 - public function get_display_flag() {
414 - return empty( $this->custom_flag ) ? $this->flag : $this->custom_flag;
415 - }
416 -
417 - /**
418 - * Returns the url of the custom flag if any, or the default flag otherwise.
419 - *
420 - * @since 2.8
421 - *
422 - * @return string
423 - */
424 - public function get_display_flag_url() {
425 - return empty( $this->custom_flag_url ) ? $this->flag_url : $this->custom_flag_url;
426 - }
427 -
428 - /**
429 - * Updates post and term count.
430 - *
431 88 * @since 1.2
432 - *
433 - * @return void
434 89 */
435 90 public function update_count() {
436 - wp_update_term_count( $this->term_taxonomy_id, 'language' ); // Posts count.
437 - wp_update_term_count( $this->tl_term_taxonomy_id, 'term_language' ); // Terms count.
91 + wp_update_term_count($this->term_taxonomy_id, 'language'); // posts count
92 + wp_update_term_count($this->tl_term_taxonomy_id, 'term_language'); // terms count
438 93 }
439 94
440 - /**
441 - * Set home_url and search_url properties.
95 + /*
96 + * set home_url and search_url properties
442 97 *
443 98 * @since 1.3
444 - *
445 - * @param string $search_url Home url to use in search forms.
446 - * @param string $home_url Home url.
447 - * @return void
448 99 */
449 - public function set_home_url( $search_url, $home_url ) {
450 - $this->search_url = $search_url;
451 - $this->home_url = $home_url;
452 - }
100 + public function set_home_url() {
101 + // home url for search form (can't use the page url if a static page is used as front page)
102 + $this->search_url = $GLOBALS['polylang']->links_model->home_url($this);
453 103
454 - /**
455 - * Sets the scheme of the home url and the flag urls.
456 - *
457 - * This can't be cached across pages.
458 - *
459 - * @since 2.8
460 - *
461 - * @return void
462 - */
463 - public function set_url_scheme() {
464 - $this->home_url = set_url_scheme( $this->home_url );
465 - $this->search_url = set_url_scheme( $this->search_url );
104 + // add a trailing slash as done by WP on homepage (otherwise could break the search form when the permalink structure does not include one)
105 + // only for pretty permalinks
106 + if (get_option('permalink_structure'))
107 + $this->search_url = trailingslashit($this->search_url);
466 108
467 - // Set url scheme, also for the flags.
468 - $this->flag_url = set_url_scheme( $this->flag_url );
469 - if ( ! empty( $this->custom_flag_url ) ) {
470 - $this->custom_flag_url = set_url_scheme( $this->custom_flag_url );
471 - }
472 - }
109 + $options = get_option('polylang');
473 110
474 - /**
475 - * Returns the language locale.
476 - * Converts WP locales to W3C valid locales for display.
477 - *
478 - * @since 1.8
479 - *
480 - * @param string $filter Either 'display' or 'raw', defaults to raw.
481 - * @return string
482 - */
483 - public function get_locale( $filter = 'raw' ) {
484 - return 'display' === $filter ? $this->w3c : $this->locale;
111 + // a static page is used as front page
112 + if (!$options['redirect_lang'] && 'page' == get_option('show_on_front') && ($page_on_front = get_option('page_on_front')) && $id = pll_get_post($page_on_front, $this))
113 + $this->home_url = _get_page_link($id); // /!\ don't use get_page_link to avoid infinite loop
114 +
115 + else
116 + $this->home_url = $this->search_url;
485 117 }
486 118 }