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Contextual body classes to help identify browsers and devices types within WordPress front-end
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| <?php | |
| /** | |
| * Adds <body> custom classes relative to browsers and device types. | |
| * | |
| * Note: These classes are obtained via WordPress Core Globals and via the wp_is_mobile | |
| * function which both rely on the user agent. wp_is_mobile() is obviously NOT a substitute | |
| * to CSS media queries, but may be used for device specific features or debugging. | |
| * | |
| * @see https://developer.wordpress.org/apis/global-variables/#browser-detection-booleans | |
| * @see https://developer.wordpress.org/reference/functions/wp_is_mobile/ | |
| */ | |
| function who_user_agent_body_classes( $classes ) { | |
| $user_agent_classes = array( | |
| // Browsers related classes. | |
| 'is-chrome' => $GLOBALS['is_chrome'], | |
| 'is-safari' => $GLOBALS['is_safari'], | |
| 'is-gecko' => $GLOBALS['is_gecko'], | |
| 'is-ns4' => $GLOBALS['is_NS4'], | |
| 'is-opera' => $GLOBALS['is_opera'], | |
| 'is-ie' => $GLOBALS['is_IE'], | |
| 'is-edge' => $GLOBALS['is_edge'], | |
| 'is-lynx' => $GLOBALS['is_lynx'], | |
| // Devices related classes. | |
| 'is-iphone' => $GLOBALS['is_iphone'], | |
| 'is-mobile' => wp_is_mobile(), | |
| 'is-desktop' => ! wp_is_mobile(), | |
| ); | |
| foreach ( $user_agent_classes as $class => $is_matching ) { | |
| if ( $is_matching ) $classes[ $class ] = $class; | |
| } | |
| return $classes; | |
| } | |
| add_filter( 'body_class', 'who_user_agent_body_classes' ); |
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