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wp-content/plugins/polylang/admin/admin-strings.php

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+<?php
+/**
+ * @package Polylang
+ */
+
+/**
+ * A fully static class to manage strings translations on admin side
+ *
+ * @since 1.6
+ */
+class PLL_Admin_Strings {
+	/**
+	 * Stores the strings to translate.
+	 *
+	 * @var array {
+	 *   @type string $name      A unique name for the string.
+	 *   @type string $string    The actual string to translate.
+	 *   @type string $context   The group in which the string is registered.
+	 *   @type bool   $multiline Whether the string table should display a multiline textarea or a single line input.
+	 * }
+	 */
+	protected static $strings = array();
+
+	/**
+	 * The strings to register by default.
+	 *
+	 * @var string[]|null
+	 */
+	protected static $default_strings;
+
+	/**
+	 * Add filters
+	 *
+	 * @since 1.6
+	 *
+	 * @return void
+	 */
+	public static function init() {
+		// default strings translations sanitization
+		add_filter( 'pll_sanitize_string_translation', array( __CLASS__, 'sanitize_string_translation' ), 10, 2 );
+	}
+
+	/**
+	 * Register strings for translation making sure it is not duplicate or empty
+	 *
+	 * @since 0.6
+	 *
+	 * @param string $name      A unique name for the string
+	 * @param string $string    The string to register
+	 * @param string $context   Optional, the group in which the string is registered, defaults to 'polylang'
+	 * @param bool   $multiline Optional, whether the string table should display a multiline textarea or a single line input, defaults to single line
+	 * @return void
+	 */
+	public static function register_string( $name, $string, $context = 'Polylang', $multiline = false ) {
+		if ( $string && is_scalar( $string ) ) {
+			self::$strings[ md5( $string ) ] = compact( 'name', 'string', 'context', 'multiline' );
+		}
+	}
+
+	/**
+	 * Get registered strings
+	 *
+	 * @since 0.6.1
+	 *
+	 * @return array list of all registered strings
+	 */
+	public static function &get_strings() {
+		self::$default_strings = array(
+			'widget_title' => __( 'Widget title', 'polylang' ),
+			'widget_text'  => __( 'Widget text', 'polylang' ),
+		);
+
+		// Widgets titles
+		global $wp_registered_widgets;
+		$sidebars = wp_get_sidebars_widgets();
+		foreach ( $sidebars as $sidebar => $widgets ) {
+			if ( 'wp_inactive_widgets' == $sidebar || empty( $widgets ) ) {
+				continue;
+			}
+
+			foreach ( $widgets as $widget ) {
+				// Nothing can be done if the widget is created using pre WP2.8 API :(
+				// There is no object, so we can't access it to get the widget options
+				if ( ! isset( $wp_registered_widgets[ $widget ]['callback'][0] ) || ! is_object( $wp_registered_widgets[ $widget ]['callback'][0] ) || ! method_exists( $wp_registered_widgets[ $widget ]['callback'][0], 'get_settings' ) ) {
+					continue;
+				}
+
+				$widget_settings = $wp_registered_widgets[ $widget ]['callback'][0]->get_settings();
+				$number = $wp_registered_widgets[ $widget ]['params'][0]['number'];
+
+				// Don't enable widget translation if the widget is visible in only one language or if there is no title
+				if ( empty( $widget_settings[ $number ]['pll_lang'] ) ) {
+					if ( isset( $widget_settings[ $number ]['title'] ) && $title = $widget_settings[ $number ]['title'] ) {
+						self::register_string( self::$default_strings['widget_title'], $title, 'Widget' );
+					}
+
+					if ( isset( $widget_settings[ $number ]['text'] ) && $text = $widget_settings[ $number ]['text'] ) {
+						self::register_string( self::$default_strings['widget_text'], $text, 'Widget', true );
+					}
+				}
+			}
+		}
+
+		/**
+		 * Filter the list of strings registered for translation
+		 * Mainly for use by our PLL_WPML_Compat class
+		 *
+		 * @since 1.0.2
+		 *
+		 * @param array $strings list of strings
+		 */
+		self::$strings = apply_filters( 'pll_get_strings', self::$strings );
+		return self::$strings;
+	}
+
+	/**
+	 * Performs the sanitization ( before saving in DB ) of default strings translations
+	 *
+	 * @since 1.6
+	 *
+	 * @param string $translation translation to sanitize
+	 * @param string $name        unique name for the string
+	 * @return string
+	 */
+	public static function sanitize_string_translation( $translation, $name ) {
+		if ( $name == self::$default_strings['widget_title'] ) {
+			$translation = sanitize_text_field( $translation );
+		}
+
+		if ( $name == self::$default_strings['widget_text'] && ! current_user_can( 'unfiltered_html' ) ) {
+			$translation = wp_kses_post( $translation );
+		}
+
+		return $translation;
+	}
+}