--- a/wp/wp-content/themes/twentyseventeen/inc/icon-functions.php Mon Oct 14 17:39:30 2019 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,220 +0,0 @@
-<?php
-/**
- * SVG icons related functions and filters
- *
- * @package WordPress
- * @subpackage Twenty_Seventeen
- * @since 1.0
- */
-
-/**
- * Add SVG definitions to the footer.
- */
-function twentyseventeen_include_svg_icons() {
- // Define SVG sprite file.
- $svg_icons = get_parent_theme_file_path( '/assets/images/svg-icons.svg' );
-
- // If it exists, include it.
- if ( file_exists( $svg_icons ) ) {
- require_once( $svg_icons );
- }
-}
-add_action( 'wp_footer', 'twentyseventeen_include_svg_icons', 9999 );
-
-/**
- * Return SVG markup.
- *
- * @param array $args {
- * Parameters needed to display an SVG.
- *
- * @type string $icon Required SVG icon filename.
- * @type string $title Optional SVG title.
- * @type string $desc Optional SVG description.
- * }
- * @return string SVG markup.
- */
-function twentyseventeen_get_svg( $args = array() ) {
- // Make sure $args are an array.
- if ( empty( $args ) ) {
- return __( 'Please define default parameters in the form of an array.', 'twentyseventeen' );
- }
-
- // Define an icon.
- if ( false === array_key_exists( 'icon', $args ) ) {
- return __( 'Please define an SVG icon filename.', 'twentyseventeen' );
- }
-
- // Set defaults.
- $defaults = array(
- 'icon' => '',
- 'title' => '',
- 'desc' => '',
- 'fallback' => false,
- );
-
- // Parse args.
- $args = wp_parse_args( $args, $defaults );
-
- // Set aria hidden.
- $aria_hidden = ' aria-hidden="true"';
-
- // Set ARIA.
- $aria_labelledby = '';
-
- /*
- * Twenty Seventeen doesn't use the SVG title or description attributes; non-decorative icons are described with .screen-reader-text.
- *
- * However, child themes can use the title and description to add information to non-decorative SVG icons to improve accessibility.
- *
- * Example 1 with title: <?php echo twentyseventeen_get_svg( array( 'icon' => 'arrow-right', 'title' => __( 'This is the title', 'textdomain' ) ) ); ?>
- *
- * Example 2 with title and description: <?php echo twentyseventeen_get_svg( array( 'icon' => 'arrow-right', 'title' => __( 'This is the title', 'textdomain' ), 'desc' => __( 'This is the description', 'textdomain' ) ) ); ?>
- *
- * See https://www.paciellogroup.com/blog/2013/12/using-aria-enhance-svg-accessibility/.
- */
- if ( $args['title'] ) {
- $aria_hidden = '';
- $unique_id = uniqid();
- $aria_labelledby = ' aria-labelledby="title-' . $unique_id . '"';
-
- if ( $args['desc'] ) {
- $aria_labelledby = ' aria-labelledby="title-' . $unique_id . ' desc-' . $unique_id . '"';
- }
- }
-
- // Begin SVG markup.
- $svg = '<svg class="icon icon-' . esc_attr( $args['icon'] ) . '"' . $aria_hidden . $aria_labelledby . ' role="img">';
-
- // Display the title.
- if ( $args['title'] ) {
- $svg .= '<title id="title-' . $unique_id . '">' . esc_html( $args['title'] ) . '</title>';
-
- // Display the desc only if the title is already set.
- if ( $args['desc'] ) {
- $svg .= '<desc id="desc-' . $unique_id . '">' . esc_html( $args['desc'] ) . '</desc>';
- }
- }
-
- /*
- * Display the icon.
- *
- * The whitespace around `<use>` is intentional - it is a work around to a keyboard navigation bug in Safari 10.
- *
- * See https://core.trac.wordpress.org/ticket/38387.
- */
- $svg .= ' <use href="#icon-' . esc_html( $args['icon'] ) . '" xlink:href="#icon-' . esc_html( $args['icon'] ) . '"></use> ';
-
- // Add some markup to use as a fallback for browsers that do not support SVGs.
- if ( $args['fallback'] ) {
- $svg .= '<span class="svg-fallback icon-' . esc_attr( $args['icon'] ) . '"></span>';
- }
-
- $svg .= '</svg>';
-
- return $svg;
-}
-
-/**
- * Display SVG icons in social links menu.
- *
- * @param string $item_output The menu item output.
- * @param WP_Post $item Menu item object.
- * @param int $depth Depth of the menu.
- * @param array $args wp_nav_menu() arguments.
- * @return string $item_output The menu item output with social icon.
- */
-function twentyseventeen_nav_menu_social_icons( $item_output, $item, $depth, $args ) {
- // Get supported social icons.
- $social_icons = twentyseventeen_social_links_icons();
-
- // Change SVG icon inside social links menu if there is supported URL.
- if ( 'social' === $args->theme_location ) {
- foreach ( $social_icons as $attr => $value ) {
- if ( false !== strpos( $item_output, $attr ) ) {
- $item_output = str_replace( $args->link_after, '</span>' . twentyseventeen_get_svg( array( 'icon' => esc_attr( $value ) ) ), $item_output );
- }
- }
- }
-
- return $item_output;
-}
-add_filter( 'walker_nav_menu_start_el', 'twentyseventeen_nav_menu_social_icons', 10, 4 );
-
-/**
- * Add dropdown icon if menu item has children.
- *
- * @param string $title The menu item's title.
- * @param WP_Post $item The current menu item.
- * @param array $args An array of wp_nav_menu() arguments.
- * @param int $depth Depth of menu item. Used for padding.
- * @return string $title The menu item's title with dropdown icon.
- */
-function twentyseventeen_dropdown_icon_to_menu_link( $title, $item, $args, $depth ) {
- if ( 'top' === $args->theme_location ) {
- foreach ( $item->classes as $value ) {
- if ( 'menu-item-has-children' === $value || 'page_item_has_children' === $value ) {
- $title = $title . twentyseventeen_get_svg( array( 'icon' => 'angle-down' ) );
- }
- }
- }
-
- return $title;
-}
-add_filter( 'nav_menu_item_title', 'twentyseventeen_dropdown_icon_to_menu_link', 10, 4 );
-
-/**
- * Returns an array of supported social links (URL and icon name).
- *
- * @return array $social_links_icons
- */
-function twentyseventeen_social_links_icons() {
- // Supported social links icons.
- $social_links_icons = array(
- 'behance.net' => 'behance',
- 'codepen.io' => 'codepen',
- 'deviantart.com' => 'deviantart',
- 'digg.com' => 'digg',
- 'docker.com' => 'dockerhub',
- 'dribbble.com' => 'dribbble',
- 'dropbox.com' => 'dropbox',
- 'facebook.com' => 'facebook',
- 'flickr.com' => 'flickr',
- 'foursquare.com' => 'foursquare',
- 'plus.google.com' => 'google-plus',
- 'github.com' => 'github',
- 'instagram.com' => 'instagram',
- 'linkedin.com' => 'linkedin',
- 'mailto:' => 'envelope-o',
- 'medium.com' => 'medium',
- 'pinterest.com' => 'pinterest-p',
- 'pscp.tv' => 'periscope',
- 'getpocket.com' => 'get-pocket',
- 'reddit.com' => 'reddit-alien',
- 'skype.com' => 'skype',
- 'skype:' => 'skype',
- 'slideshare.net' => 'slideshare',
- 'snapchat.com' => 'snapchat-ghost',
- 'soundcloud.com' => 'soundcloud',
- 'spotify.com' => 'spotify',
- 'stumbleupon.com' => 'stumbleupon',
- 'tumblr.com' => 'tumblr',
- 'twitch.tv' => 'twitch',
- 'twitter.com' => 'twitter',
- 'vimeo.com' => 'vimeo',
- 'vine.co' => 'vine',
- 'vk.com' => 'vk',
- 'wordpress.org' => 'wordpress',
- 'wordpress.com' => 'wordpress',
- 'yelp.com' => 'yelp',
- 'youtube.com' => 'youtube',
- );
-
- /**
- * Filter Twenty Seventeen social links icons.
- *
- * @since Twenty Seventeen 1.0
- *
- * @param array $social_links_icons Array of social links icons.
- */
- return apply_filters( 'twentyseventeen_social_links_icons', $social_links_icons );
-}