init

wp-content/plugins/jetpack/functions.is-mobile.php

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+<?php // phpcs:ignore WordPress.Files.FileName.NotHyphenatedLowercase
+/**
+ * This file holds a function that needs to be loaded before WordPress itself
+ * on WordPress.com.
+ *
+ * @package automattic/jetpack
+ */
+
+use Automattic\Jetpack\Device_Detection;
+
+/**
+ * Determine if the current User Agent matches the passed $kind
+ *
+ * @param string $kind Category of mobile device to check for.
+ *                         Either: any, dumb, smart.
+ * @param bool   $return_matched_agent Boolean indicating if the UA should be returned.
+ *
+ * @return bool|string Boolean indicating if current UA matches $kind. If
+ *                              $return_matched_agent is true, returns the UA string
+ */
+function jetpack_is_mobile( $kind = 'any', $return_matched_agent = false ) {
+
+	if ( function_exists( 'apply_filters' ) ) {
+		/**
+		 * Filter the value of jetpack_is_mobile before it is calculated.
+		 *
+		 * Passing a truthy value to the filter will short-circuit determining the
+		 * mobile type, returning the passed value instead.
+		 *
+		 * @since  4.2.0
+		 *
+		 * @param bool|string $matches Boolean if current UA matches $kind or not. If
+		 *                             $return_matched_agent is true, should return the UA string
+		 * @param string      $kind Category of mobile device being checked
+		 * @param bool        $return_matched_agent Boolean indicating if the UA should be returned
+		 */
+		$pre = apply_filters( 'pre_jetpack_is_mobile', null, $kind, $return_matched_agent );
+		if ( $pre ) {
+			return $pre;
+		}
+	}
+
+	$return      = false;
+	$device_info = Device_Detection::get_info();
+
+	if ( 'any' === $kind ) {
+		$return = $device_info['is_phone'];
+	} elseif ( 'smart' === $kind ) {
+		$return = $device_info['is_smartphone'];
+	} elseif ( 'dumb' === $kind ) {
+		$return = $device_info['is_phone'] && ! $device_info['is_smartphone'];
+	}
+
+	if ( $return_matched_agent && true === $return ) {
+		$return = $device_info['is_phone_matched_ua'];
+	}
+
+	if ( function_exists( 'apply_filters' ) ) {
+		/**
+		 * Filter the value of jetpack_is_mobile
+		 *
+		 * @since  4.2.0
+		 *
+		 * @param bool|string $matches Boolean if current UA matches $kind or not. If
+		 *                             $return_matched_agent is true, should return the UA string
+		 * @param string      $kind Category of mobile device being checked
+		 * @param bool        $return_matched_agent Boolean indicating if the UA should be returned
+		 */
+		$return = apply_filters( 'jetpack_is_mobile', $return, $kind, $return_matched_agent );
+	}
+
+	return $return;
+}