| 1 |
<?php |
| 2 |
|
| 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 |
| 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 => WordPress language locale. Ex: en_US |
| 21 |
* is_rtl => 1 if the language is rtl |
| 22 |
* w3c => W3C locale |
| 23 |
* flag_code => code of the flag |
| 24 |
* flag_url => url of the flag |
| 25 |
* flag => html img of the flag |
| 26 |
* custom_flag_url => url of the custom flag if exists, internal use only, moves to flag_url on frontend |
| 27 |
* custom_flag => html img of the custom flag if exists, internal use only, moves to flag on frontend |
| 28 |
* home_url => home url in this language |
| 29 |
* search_url => home url to use in search forms |
| 30 |
* host => host of this language |
| 31 |
* mo_id => id of the post storing strings translations |
| 32 |
* page_on_front => id of the page on front in this language ( set from pll_languages_list filter ) |
| 33 |
* page_for_posts => id of the page for posts in this language ( set from pll_languages_list filter ) |
| 34 |
* |
| 35 |
* @since 1.2 |
| 36 |
*/ |
| 37 |
class PLL_Language { |
| 38 |
public $term_id, $name, $slug, $term_group, $term_taxonomy_id, $taxonomy, $description, $parent, $count; |
| 39 |
public $tl_term_id, $tl_term_taxonomy_id, $tl_count; |
| 40 |
public $locale, $is_rtl; |
| 41 |
public $w3c, $facebook; |
| 42 |
public $flag_url, $flag; |
| 43 |
public $home_url, $search_url; |
| 44 |
public $host, $mo_id; |
| 45 |
public $page_on_front, $page_for_posts; |
| 46 |
|
| 47 |
/** |
| 48 |
* Constructor: builds a language object given its two corresponding terms in language and term_language taxonomies |
| 49 |
* |
| 50 |
* @since 1.2 |
| 51 |
* |
| 52 |
* @param object|array $language 'language' term or language object properties stored as an array |
| 53 |
* @param object $term_language Corresponding 'term_language' term |
| 54 |
*/ |
| 55 |
public function __construct( $language, $term_language = null ) { |
| 56 |
// Build the object from all properties stored as an array |
| 57 |
if ( empty( $term_language ) ) { |
| 58 |
foreach ( $language as $prop => $value ) { |
| 59 |
$this->$prop = $value; |
| 60 |
} |
| 61 |
} |
| 62 |
|
| 63 |
// Build the object from taxonomies |
| 64 |
else { |
| 65 |
foreach ( $language as $prop => $value ) { |
| 66 |
$this->$prop = in_array( $prop, array( 'term_id', 'term_taxonomy_id', 'count' ) ) ? (int) $language->$prop : $language->$prop; |
| 67 |
} |
| 68 |
|
| 69 |
$this->tl_term_id = (int) $term_language->term_id; |
| 70 |
$this->tl_term_taxonomy_id = (int) $term_language->term_taxonomy_id; |
| 71 |
$this->tl_count = (int) $term_language->count; |
| 72 |
|
| 73 |
// The description field can contain any property |
| 74 |
// Backward compatibility for is_rtl |
| 75 |
$description = maybe_unserialize( $language->description ); |
| 76 |
foreach ( $description as $prop => $value ) { |
| 77 |
'rtl' == $prop ? $this->is_rtl = $value : $this->$prop = $value; |
| 78 |
} |
| 79 |
|
| 80 |
$this->description = &$this->locale; // Backward compatibility with Polylang < 1.2 |
| 81 |
|
| 82 |
$this->mo_id = PLL_MO::get_id( $this ); |
| 83 |
|
| 84 |
include PLL_SETTINGS_INC . '/languages.php'; |
| 85 |
$this->w3c = isset( $languages[ $this->locale ]['w3c'] ) ? $languages[ $this->locale ]['w3c'] : str_replace( '_', '-', $this->locale ); |
| 86 |
if ( isset( $languages[ $this->locale ]['facebook'] ) ) { |
| 87 |
$this->facebook = $languages[ $this->locale ]['facebook']; |
| 88 |
} |
| 89 |
} |
| 90 |
} |
| 91 |
|
| 92 |
/** |
| 93 |
* Sets flag_url and flag properties |
| 94 |
* |
| 95 |
* @since 1.2 |
| 96 |
*/ |
| 97 |
public function set_flag() { |
| 98 |
$flags['flag']['url'] = ''; |
| 99 |
|
| 100 |
// Polylang builtin flags |
| 101 |
if ( ! empty( $this->flag_code ) && file_exists( POLYLANG_DIR . ( $file = '/flags/' . $this->flag_code . '.png' ) ) ) { |
| 102 |
$flags['flag']['url'] = $_url = plugins_url( $file, POLYLANG_FILE ); |
| 103 |
} |
| 104 |
|
| 105 |
/** |
| 106 |
* Filter flag informations |
| 107 |
* 'url' => Flag url |
| 108 |
* 'src' => Optional, src attribute value if different of the url, for example if base64 encoded |
| 109 |
* 'width' => Optional, flag width in pixels |
| 110 |
* 'height' => Optional, flag height in pixels |
| 111 |
* |
| 112 |
* @since 2.4 |
| 113 |
* |
| 114 |
* @param array $flag Information about the flag |
| 115 |
* @param string $code Flag code |
| 116 |
*/ |
| 117 |
$flags['flag'] = apply_filters( 'pll_flag', $flags['flag'], $this->flag_code ); |
| 118 |
|
| 119 |
if ( empty( $flags['flag']['src'] ) ) { |
| 120 |
// If using predefined flags and base64 encoded flags are preferred |
| 121 |
if ( $flags['flag']['url'] === $_url && ( ! defined( 'PLL_ENCODED_FLAGS' ) || PLL_ENCODED_FLAGS ) ) { |
| 122 |
$flags['flag']['src'] = 'data:image/png;base64,' . base64_encode( file_get_contents( POLYLANG_DIR . $file ) ); |
| 123 |
} else { |
| 124 |
$flags['flag']['src'] = esc_url( set_url_scheme( $flags['flag']['url'], 'relative' ) ); |
| 125 |
} |
| 126 |
} |
| 127 |
|
| 128 |
$flags['flag']['url'] = esc_url_raw( $flags['flag']['url'] ); |
| 129 |
|
| 130 |
// Custom flags ? |
| 131 |
$directories = array( |
| 132 |
PLL_LOCAL_DIR, |
| 133 |
get_stylesheet_directory() . '/polylang', |
| 134 |
get_template_directory() . '/polylang', |
| 135 |
); |
| 136 |
|
| 137 |
foreach ( $directories as $dir ) { |
| 138 |
if ( file_exists( $file = "{$dir}/{$this->locale}.png" ) || file_exists( $file = "{$dir}/{$this->locale}.jpg" ) || file_exists( $file = "{$dir}/{$this->locale}.svg" ) ) { |
| 139 |
$flags['custom_flag']['url'] = site_url( '/' . str_replace( ABSPATH, '', $file ) ); |
| 140 |
break; |
| 141 |
} |
| 142 |
} |
| 143 |
|
| 144 |
/** |
| 145 |
* Filter the custom flag informations |
| 146 |
* 'url' => Flag url |
| 147 |
* 'src' => Optional, src attribute value if different of the url, for example if base64 encoded |
| 148 |
* 'width' => Optional, flag width in pixels |
| 149 |
* 'height' => Optional, flag height in pixels |
| 150 |
* |
| 151 |
* @since 2.4 |
| 152 |
* |
| 153 |
* @param array $flag Information about the custom flag |
| 154 |
* @param string $code Flag code |
| 155 |
*/ |
| 156 |
$flags['custom_flag'] = apply_filters( 'pll_custom_flag', empty( $flags['custom_flag'] ) ? null : $flags['custom_flag'], $this->flag_code ); |
| 157 |
|
| 158 |
if ( ! empty( $flags['custom_flag']['url'] ) ) { |
| 159 |
if ( empty( $flags['custom_flag']['src'] ) ) { |
| 160 |
$flags['custom_flag']['src'] = esc_url( set_url_scheme( $flags['custom_flag']['url'], 'relative' ) ); |
| 161 |
} |
| 162 |
|
| 163 |
$flags['custom_flag']['url'] = esc_url_raw( $flags['custom_flag']['url'] ); |
| 164 |
} else { |
| 165 |
unset( $flags['custom_flag'] ); |
| 166 |
} |
| 167 |
|
| 168 |
/** |
| 169 |
* Filter the flag title attribute |
| 170 |
* Defaults to the language name |
| 171 |
* |
| 172 |
* @since 0.7 |
| 173 |
* |
| 174 |
* @param string $title the flag title attribute |
| 175 |
* @param string $slug the language code |
| 176 |
* @param string $locale the language locale |
| 177 |
*/ |
| 178 |
$title = apply_filters( 'pll_flag_title', $this->name, $this->slug, $this->locale ); |
| 179 |
|
| 180 |
foreach ( $flags as $key => $flag ) { |
| 181 |
$this->{$key . '_url'} = empty( $flag['url'] ) ? '' : $flag['url']; |
| 182 |
|
| 183 |
/** |
| 184 |
* Filter the html markup of a flag |
| 185 |
* |
| 186 |
* @since 1.0.2 |
| 187 |
* |
| 188 |
* @param string $flag html markup of the flag or empty string |
| 189 |
* @param string $slug language code |
| 190 |
*/ |
| 191 |
$this->{$key} = apply_filters( |
| 192 |
'pll_get_flag', |
| 193 |
empty( $flag['src'] ) ? '' : sprintf( |
| 194 |
'<img src="%s" title="%s" alt="%s"%s%s />', |
| 195 |
$flag['src'], |
| 196 |
esc_attr( $title ), |
| 197 |
esc_attr( $this->name ), |
| 198 |
empty( $flag['width'] ) ? '' : sprintf( ' width="%s"', (int) $flag['width'] ), |
| 199 |
empty( $flag['height'] ) ? '' : sprintf( ' height="%s"', (int) $flag['height'] ) |
| 200 |
), |
| 201 |
$this->slug |
| 202 |
); |
| 203 |
} |
| 204 |
} |
| 205 |
|
| 206 |
/** |
| 207 |
* Replace flag by custom flag |
| 208 |
* Takes care of url scheme |
| 209 |
* |
| 210 |
* @since 1.7 |
| 211 |
*/ |
| 212 |
public function set_custom_flag() { |
| 213 |
// Overwrite with custom flags on frontend only |
| 214 |
if ( ! empty( $this->custom_flag ) ) { |
| 215 |
$this->flag = $this->custom_flag; |
| 216 |
$this->flag_url = $this->custom_flag_url; |
| 217 |
unset( $this->custom_flag, $this->custom_flag_url ); // hide this |
| 218 |
} |
| 219 |
|
| 220 |
// Set url scheme, also for default flags |
| 221 |
$this->flag_url = set_url_scheme( $this->flag_url ); |
| 222 |
} |
| 223 |
|
| 224 |
/** |
| 225 |
* Updates post and term count |
| 226 |
* |
| 227 |
* @since 1.2 |
| 228 |
*/ |
| 229 |
public function update_count() { |
| 230 |
wp_update_term_count( $this->term_taxonomy_id, 'language' ); // posts count |
| 231 |
wp_update_term_count( $this->tl_term_taxonomy_id, 'term_language' ); // terms count |
| 232 |
} |
| 233 |
|
| 234 |
/** |
| 235 |
* Set home_url and search_url properties |
| 236 |
* |
| 237 |
* @since 1.3 |
| 238 |
* |
| 239 |
* @param string $search_url |
| 240 |
* @param string $home_url |
| 241 |
*/ |
| 242 |
public function set_home_url( $search_url, $home_url ) { |
| 243 |
$this->search_url = $search_url; |
| 244 |
$this->home_url = $home_url; |
| 245 |
} |
| 246 |
|
| 247 |
/** |
| 248 |
* Set home_url scheme |
| 249 |
* this can't be cached across pages |
| 250 |
* |
| 251 |
* @since 1.6.4 |
| 252 |
*/ |
| 253 |
public function set_home_url_scheme() { |
| 254 |
$this->home_url = set_url_scheme( $this->home_url ); |
| 255 |
$this->search_url = set_url_scheme( $this->search_url ); |
| 256 |
} |
| 257 |
|
| 258 |
/** |
| 259 |
* Returns the language locale |
| 260 |
* Converts WP locales to W3C valid locales for display |
| 261 |
* |
| 262 |
* @since 1.8 |
| 263 |
* |
| 264 |
* @param string $filter either 'display' or 'raw', defaults to raw |
| 265 |
* @return string |
| 266 |
*/ |
| 267 |
public function get_locale( $filter = 'raw' ) { |
| 268 |
return 'display' === $filter ? $this->w3c : $this->locale; |
| 269 |
} |
| 270 |
} |
| 271 |
|
