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  1. <?php
  2. /**
  3. * Twenty Fifteen functions and definitions
  4. *
  5. * Set up the theme and provides some helper functions, which are used in the
  6. * theme as custom template tags. Others are attached to action and filter
  7. * hooks in WordPress to change core functionality.
  8. *
  9. * When using a child theme you can override certain functions (those wrapped
  10. * in a function_exists() call) by defining them first in your child theme's
  11. * functions.php file. The child theme's functions.php file is included before
  12. * the parent theme's file, so the child theme functions would be used.
  13. *
  14. * @link https://codex.wordpress.org/Theme_Development
  15. * @link https://codex.wordpress.org/Child_Themes
  16. *
  17. * Functions that are not pluggable (not wrapped in function_exists()) are
  18. * instead attached to a filter or action hook.
  19. *
  20. * For more information on hooks, actions, and filters,
  21. * {@link https://codex.wordpress.org/Plugin_API}
  22. *
  23. * @package WordPress
  24. * @subpackage Twenty_Fifteen
  25. * @since Twenty Fifteen 1.0
  26. */
  27.  
  28. /**
  29. * Set the content width based on the theme's design and stylesheet.
  30. *
  31. * @since Twenty Fifteen 1.0
  32. */
  33. if ( ! isset( $content_width ) ) {
  34. $content_width = 660;
  35. }
  36.  
  37. /**
  38. * Twenty Fifteen only works in WordPress 4.1 or later.
  39. */
  40. if ( version_compare( $GLOBALS['wp_version'], '4.1-alpha', '<' ) ) {
  41. require get_template_directory() . '/inc/back-compat.php';
  42. }
  43.  
  44. if ( ! function_exists( 'twentyfifteen_setup' ) ) :
  45. /**
  46. * Sets up theme defaults and registers support for various WordPress features.
  47. *
  48. * Note that this function is hooked into the after_setup_theme hook, which
  49. * runs before the init hook. The init hook is too late for some features, such
  50. * as indicating support for post thumbnails.
  51. *
  52. * @since Twenty Fifteen 1.0
  53. */
  54. function twentyfifteen_setup() {
  55.  
  56. /*
  57. * Make theme available for translation.
  58. * Translations can be filed in the /languages/ directory.
  59. * If you're building a theme based on twentyfifteen, use a find and replace
  60. * to change 'twentyfifteen' to the name of your theme in all the template files
  61. */
  62. load_theme_textdomain( 'twentyfifteen', get_template_directory() . '/languages' );
  63.  
  64. // Add default posts and comments RSS feed links to head.
  65. add_theme_support( 'automatic-feed-links' );
  66.  
  67. /*
  68. * Let WordPress manage the document title.
  69. * By adding theme support, we declare that this theme does not use a
  70. * hard-coded <title> tag in the document head, and expect WordPress to
  71. * provide it for us.
  72. */
  73. add_theme_support( 'title-tag' );
  74.  
  75. /*
  76. * Enable support for Post Thumbnails on posts and pages.
  77. *
  78. * See: https://codex.wordpress.org/Function_Reference/add_theme_support#Post_Thumbnails
  79. */
  80. add_theme_support( 'post-thumbnails' );
  81. set_post_thumbnail_size( 825, 510, true );
  82.  
  83. // This theme uses wp_nav_menu() in two locations.
  84. register_nav_menus( array(
  85. 'primary' => __( 'Primary Menu', 'twentyfifteen' ),
  86. 'social' => __( 'Social Links Menu', 'twentyfifteen' ),
  87. ) );
  88.  
  89. /*
  90. * Switch default core markup for search form, comment form, and comments
  91. * to output valid HTML5.
  92. */
  93. add_theme_support( 'html5', array(
  94. 'search-form', 'comment-form', 'comment-list', 'gallery', 'caption'
  95. ) );
  96.  
  97. /*
  98. * Enable support for Post Formats.
  99. *
  100. * See: https://codex.wordpress.org/Post_Formats
  101. */
  102. add_theme_support( 'post-formats', array(
  103. 'aside', 'image', 'video', 'quote', 'link', 'gallery', 'status', 'audio', 'chat'
  104. ) );
  105.  
  106. $color_scheme = twentyfifteen_get_color_scheme();
  107. $default_color = trim( $color_scheme[0], '#' );
  108.  
  109. // Setup the WordPress core custom background feature.
  110. add_theme_support( 'custom-background', apply_filters( 'twentyfifteen_custom_background_args', array(
  111. 'default-color' => $default_color,
  112. 'default-attachment' => 'fixed',
  113. ) ) );
  114.  
  115. /*
  116. * This theme styles the visual editor to resemble the theme style,
  117. * specifically font, colors, icons, and column width.
  118. */
  119. add_editor_style( array( 'css/editor-style.css', 'genericons/genericons.css', twentyfifteen_fonts_url() ) );
  120. }
  121. endif; // twentyfifteen_setup
  122. add_action( 'after_setup_theme', 'twentyfifteen_setup' );
  123.  
  124. /**
  125. * Register widget area.
  126. *
  127. * @since Twenty Fifteen 1.0
  128. *
  129. * @link https://codex.wordpress.org/Function_Reference/register_sidebar
  130. */
  131. function twentyfifteen_widgets_init() {
  132. register_sidebar( array(
  133. 'name' => __( 'Widget Area', 'twentyfifteen' ),
  134. 'id' => 'sidebar-1',
  135. 'description' => __( 'Add widgets here to appear in your sidebar.', 'twentyfifteen' ),
  136. 'before_widget' => '<aside id="%1$s" class="widget %2$s">',
  137. 'after_widget' => '</aside>',
  138. 'before_title' => '<h2 class="widget-title">',
  139. 'after_title' => '</h2>',
  140. ) );
  141. }
  142. add_action( 'widgets_init', 'twentyfifteen_widgets_init' );
  143.  
  144. if ( ! function_exists( 'twentyfifteen_fonts_url' ) ) :
  145. /**
  146. * Register Google fonts for Twenty Fifteen.
  147. *
  148. * @since Twenty Fifteen 1.0
  149. *
  150. * @return string Google fonts URL for the theme.
  151. */
  152. function twentyfifteen_fonts_url() {
  153. $fonts_url = '';
  154. $fonts = array();
  155. $subsets = 'latin,latin-ext';
  156.  
  157. /*
  158. * Translators: If there are characters in your language that are not supported
  159. * by Noto Sans, translate this to 'off'. Do not translate into your own language.
  160. */
  161. if ( 'off' !== _x( 'on', 'Noto Sans font: on or off', 'twentyfifteen' ) ) {
  162. $fonts[] = 'Noto Sans:400italic,700italic,400,700';
  163. }
  164.  
  165. /*
  166. * Translators: If there are characters in your language that are not supported
  167. * by Noto Serif, translate this to 'off'. Do not translate into your own language.
  168. */
  169. if ( 'off' !== _x( 'on', 'Noto Serif font: on or off', 'twentyfifteen' ) ) {
  170. $fonts[] = 'Noto Serif:400italic,700italic,400,700';
  171. }
  172.  
  173. /*
  174. * Translators: If there are characters in your language that are not supported
  175. * by Inconsolata, translate this to 'off'. Do not translate into your own language.
  176. */
  177. if ( 'off' !== _x( 'on', 'Inconsolata font: on or off', 'twentyfifteen' ) ) {
  178. $fonts[] = 'Inconsolata:400,700';
  179. }
  180.  
  181. /*
  182. * Translators: To add an additional character subset specific to your language,
  183. * translate this to 'greek', 'cyrillic', 'devanagari' or 'vietnamese'. Do not translate into your own language.
  184. */
  185. $subset = _x( 'no-subset', 'Add new subset (greek, cyrillic, devanagari, vietnamese)', 'twentyfifteen' );
  186.  
  187. if ( 'cyrillic' == $subset ) {
  188. $subsets .= ',cyrillic,cyrillic-ext';
  189. } elseif ( 'greek' == $subset ) {
  190. $subsets .= ',greek,greek-ext';
  191. } elseif ( 'devanagari' == $subset ) {
  192. $subsets .= ',devanagari';
  193. } elseif ( 'vietnamese' == $subset ) {
  194. $subsets .= ',vietnamese';
  195. }
  196.  
  197. if ( $fonts ) {
  198. $fonts_url = add_query_arg( array(
  199. 'family' => urlencode( implode( '|', $fonts ) ),
  200. 'subset' => urlencode( $subsets ),
  201. ), 'https://fonts.googleapis.com/css' );
  202. }
  203.  
  204. return $fonts_url;
  205. }
  206. endif;
  207.  
  208. /**
  209. * JavaScript Detection.
  210. *
  211. * Adds a `js` class to the root `<html>` element when JavaScript is detected.
  212. *
  213. * @since Twenty Fifteen 1.1
  214. */
  215. function twentyfifteen_javascript_detection() {
  216. echo "<script>(function(html){html.className = html.className.replace(/\bno-js\b/,'js')})(document.documentElement);</script>\n";
  217. }
  218. add_action( 'wp_head', 'twentyfifteen_javascript_detection', 0 );
  219.  
  220. /**
  221. * Enqueue scripts and styles.
  222. *
  223. * @since Twenty Fifteen 1.0
  224. */
  225. function twentyfifteen_scripts() {
  226. // Add custom fonts, used in the main stylesheet.
  227. wp_enqueue_style( 'twentyfifteen-fonts', twentyfifteen_fonts_url(), array(), null );
  228.  
  229. // Add Genericons, used in the main stylesheet.
  230. wp_enqueue_style( 'genericons', get_template_directory_uri() . '/genericons/genericons.css', array(), '3.2' );
  231.  
  232. // Load our main stylesheet.
  233. wp_enqueue_style( 'twentyfifteen-style', get_stylesheet_uri() );
  234.  
  235. // Load the Internet Explorer specific stylesheet.
  236. wp_enqueue_style( 'twentyfifteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentyfifteen-style' ), '20141010' );
  237. wp_style_add_data( 'twentyfifteen-ie', 'conditional', 'lt IE 9' );
  238.  
  239. // Load the Internet Explorer 7 specific stylesheet.
  240. wp_enqueue_style( 'twentyfifteen-ie7', get_template_directory_uri() . '/css/ie7.css', array( 'twentyfifteen-style' ), '20141010' );
  241. wp_style_add_data( 'twentyfifteen-ie7', 'conditional', 'lt IE 8' );
  242.  
  243. wp_enqueue_script( 'twentyfifteen-skip-link-focus-fix', get_template_directory_uri() . '/js/skip-link-focus-fix.js', array(), '20141010', true );
  244.  
  245. if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
  246. wp_enqueue_script( 'comment-reply' );
  247. }
  248.  
  249. if ( is_singular() && wp_attachment_is_image() ) {
  250. wp_enqueue_script( 'twentyfifteen-keyboard-image-navigation', get_template_directory_uri() . '/js/keyboard-image-navigation.js', array( 'jquery' ), '20141010' );
  251. }
  252.  
  253. wp_enqueue_script( 'twentyfifteen-script', get_template_directory_uri() . '/js/functions.js', array( 'jquery' ), '20150330', true );
  254. wp_localize_script( 'twentyfifteen-script', 'screenReaderText', array(
  255. 'expand' => '<span class="screen-reader-text">' . __( 'expand child menu', 'twentyfifteen' ) . '</span>',
  256. 'collapse' => '<span class="screen-reader-text">' . __( 'collapse child menu', 'twentyfifteen' ) . '</span>',
  257. ) );
  258. }
  259. add_action( 'wp_enqueue_scripts', 'twentyfifteen_scripts' );
  260.  
  261. /**
  262. * Add featured image as background image to post navigation elements.
  263. *
  264. * @since Twenty Fifteen 1.0
  265. *
  266. * @see wp_add_inline_style()
  267. */
  268. function twentyfifteen_post_nav_background() {
  269. if ( ! is_single() ) {
  270. return;
  271. }
  272.  
  273. $previous = ( is_attachment() ) ? get_post( get_post()->post_parent ) : get_adjacent_post( false, '', true );
  274. $next = get_adjacent_post( false, '', false );
  275. $css = '';
  276.  
  277. if ( is_attachment() && 'attachment' == $previous->post_type ) {
  278. return;
  279. }
  280.  
  281. if ( $previous && has_post_thumbnail( $previous->ID ) ) {
  282. $prevthumb = wp_get_attachment_image_src( get_post_thumbnail_id( $previous->ID ), 'post-thumbnail' );
  283. $css .= '
  284. .post-navigation .nav-previous { background-image: url(' . esc_url( $prevthumb[0] ) . '); }
  285. .post-navigation .nav-previous .post-title, .post-navigation .nav-previous a:hover .post-title, .post-navigation .nav-previous .meta-nav { color: #fff; }
  286. .post-navigation .nav-previous a:before { background-color: rgba(0, 0, 0, 0.4); }
  287. ';
  288. }
  289.  
  290. if ( $next && has_post_thumbnail( $next->ID ) ) {
  291. $nextthumb = wp_get_attachment_image_src( get_post_thumbnail_id( $next->ID ), 'post-thumbnail' );
  292. $css .= '
  293. .post-navigation .nav-next { background-image: url(' . esc_url( $nextthumb[0] ) . '); border-top: 0; }
  294. .post-navigation .nav-next .post-title, .post-navigation .nav-next a:hover .post-title, .post-navigation .nav-next .meta-nav { color: #fff; }
  295. .post-navigation .nav-next a:before { background-color: rgba(0, 0, 0, 0.4); }
  296. ';
  297. }
  298.  
  299. wp_add_inline_style( 'twentyfifteen-style', $css );
  300. }
  301. add_action( 'wp_enqueue_scripts', 'twentyfifteen_post_nav_background' );
  302.  
  303. /**
  304. * Display descriptions in main navigation.
  305. *
  306. * @since Twenty Fifteen 1.0
  307. *
  308. * @param string $item_output The menu item output.
  309. * @param WP_Post $item Menu item object.
  310. * @param int $depth Depth of the menu.
  311. * @param array $args wp_nav_menu() arguments.
  312. * @return string Menu item with possible description.
  313. */
  314. function twentyfifteen_nav_description( $item_output, $item, $depth, $args ) {
  315. if ( 'primary' == $args->theme_location && $item->description ) {
  316. $item_output = str_replace( $args->link_after . '</a>', '<div class="menu-item-description">' . $item->description . '</div>' . $args->link_after . '</a>', $item_output );
  317. }
  318.  
  319. return $item_output;
  320. }
  321. add_filter( 'walker_nav_menu_start_el', 'twentyfifteen_nav_description', 10, 4 );
  322.  
  323. /**
  324. * Add a `screen-reader-text` class to the search form's submit button.
  325. *
  326. * @since Twenty Fifteen 1.0
  327. *
  328. * @param string $html Search form HTML.
  329. * @return string Modified search form HTML.
  330. */
  331. function twentyfifteen_search_form_modify( $html ) {
  332. return str_replace( 'class="search-submit"', 'class="search-submit screen-reader-text"', $html );
  333. }
  334. add_filter( 'get_search_form', 'twentyfifteen_search_form_modify' );
  335.  
  336. /**
  337. * Implement the Custom Header feature.
  338. *
  339. * @since Twenty Fifteen 1.0
  340. */
  341. require get_template_directory() . '/inc/custom-header.php';
  342.  
  343. /**
  344. * Custom template tags for this theme.
  345. *
  346. * @since Twenty Fifteen 1.0
  347. */
  348. require get_template_directory() . '/inc/template-tags.php';
  349.  
  350. /**
  351. * Customizer additions.
  352. *
  353. * @since Twenty Fifteen 1.0
  354. */
  355. require get_template_directory() . '/inc/customizer.php';
  356.  
  357. // Currency Symbols
  358. add_filter( 'woocommerce_currency_symbols', 'change_currency_symbol' );
  359.  
  360. function change_currency_symbol( $symbols ) {
  361. $symbols['USD'] = 'USD ';
  362. $symbols['AED'] = 'AED ';
  363.  
  364. return $symbols;
  365. }
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