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<?php |
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/** |
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* Plugin Name: Google Translate Widget for WordPress.com |
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* Plugin URI: http://automattic.com |
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* Description: Add a widget for automatic translation |
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* Author: Artur Piszek |
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* Version: 0.1 |
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* Author URI: http://automattic.com |
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* Text Domain: jetpack |
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*/ |
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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class Jetpack_Google_Translate_Widget extends WP_Widget { |
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static $instance = null; |
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|
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/** |
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* Default widget title. |
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* |
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* @var string $default_title |
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*/ |
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var $default_title; |
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|
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/** |
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* Register widget with WordPress. |
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*/ |
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function __construct() { |
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parent::__construct( |
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'google_translate_widget', |
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/** This filter is documented in modules/widgets/facebook-likebox.php */ |
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apply_filters( 'jetpack_widget_name', __( 'Google Translate', 'jetpack' ) ), |
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array( |
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'description' => __( 'Provide your readers with the option to translate your site into their preferred language.', 'jetpack' ), |
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'customize_selective_refresh' => true |
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) |
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); |
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add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ) ); |
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|
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$this->default_title = esc_html__( 'Translate', 'jetpack' ); |
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} |
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|
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/** |
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* Enqueue frontend JS scripts. |
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*/ |
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public function enqueue_scripts() { |
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wp_register_script( |
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'google-translate-init', |
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Jetpack::get_file_url_for_environment( |
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'_inc/build/widgets/google-translate/google-translate.min.js', |
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'modules/widgets/google-translate/google-translate.js' |
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) |
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); |
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wp_register_script( 'google-translate', '//translate.google.com/translate_a/element.js?cb=googleTranslateElementInit', array( 'google-translate-init' ) ); |
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// Admin bar is also displayed on top of the site which causes google translate bar to hide beneath. |
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// Overwrite position of body.admin-bar |
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// This is a hack to show google translate bar a bit lower. |
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$lowerTranslateBar = ' |
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.admin-bar { |
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position: inherit !important; |
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top: auto !important; |
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} |
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.admin-bar .goog-te-banner-frame { |
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top: 32px !important |
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} |
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@media screen and (max-width: 782px) { |
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.admin-bar .goog-te-banner-frame { |
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top: 46px !important; |
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} |
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} |
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@media screen and (max-width: 480px) { |
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.admin-bar .goog-te-banner-frame { |
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position: absolute; |
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} |
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} |
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'; |
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wp_add_inline_style( 'admin-bar', $lowerTranslateBar ); |
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wp_add_inline_style( 'wpcom-admin-bar', $lowerTranslateBar ); |
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} |
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|
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/** |
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* Display the Widget. |
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* |
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* @see WP_Widget::widget() |
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* |
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* @param array $args Display arguments. |
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* @param array $instance The settings for the particular instance of the widget. |
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*/ |
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public function widget( $args, $instance ) { |
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// We never should show more than 1 instance of this. |
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if ( null === self::$instance ) { |
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$instance = wp_parse_args( $instance, array( |
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'title' => $this->default_title, |
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) ); |
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|
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/** |
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* Filter the layout of the Google Translate Widget. |
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* |
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* 3 different integers are accepted. |
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* 0 for the vertical layout. |
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* 1 for the horizontal layout. |
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* 2 for the dropdown only. |
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* |
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* @see https://translate.google.com/manager/website/ |
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* |
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* @module widgets |
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* |
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* @since 5.5.0 |
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* |
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* @param string $layout layout of the Google Translate Widget. |
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*/ |
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$button_layout = apply_filters( 'jetpack_google_translate_widget_layout', 0 ); |
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|
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if ( |
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! is_int( $button_layout ) |
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|| 0 > $button_layout |
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|| 2 < $button_layout |
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) { |
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$button_layout = 0; |
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} |
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|
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wp_localize_script( |
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'google-translate-init', |
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'_wp_google_translate_widget', |
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array( |
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'lang' => get_locale(), |
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'layout' => intval( $button_layout ), |
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) |
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); |
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wp_enqueue_script( 'google-translate-init' ); |
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wp_enqueue_script( 'google-translate' ); |
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|
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$title = $instance['title']; |
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|
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if ( ! isset( $title ) ) { |
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$title = $this->default_title; |
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} |
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|
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/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */ |
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$title = apply_filters( 'widget_title', $title ); |
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|
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echo $args['before_widget']; |
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if ( ! empty( $title ) ) { |
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echo $args['before_title'] . esc_html( $title ) . $args['after_title']; |
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} |
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echo '<div id="google_translate_element"></div>'; |
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echo $args['after_widget']; |
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self::$instance = $instance; |
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/** This action is documented in modules/widgets/gravatar-profile.php */ |
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do_action( 'jetpack_stats_extra', 'widget_view', 'google-translate' ); |
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} |
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} |
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|
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/** |
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* Widget form in the dashboard. |
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* |
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* @see WP_Widget::form() |
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* |
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* @param array $instance Previously saved values from database. |
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*/ |
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public function form( $instance ) { |
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$title = isset( $instance['title'] ) ? $instance['title'] : false; |
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if ( false === $title ) { |
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$title = $this->default_title; |
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} |
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?> |
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<p> |
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<label for="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>"><?php esc_html_e( 'Title:', 'jetpack' ); ?></label> |
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<input class="widefat" id="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'title' ) ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" /> |
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</p> |
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<?php |
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} |
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|
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/** |
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* Sanitize widget form values as they are saved. |
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* |
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* @see WP_Widget::update() |
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* |
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* @param array $new_instance Values just sent to be saved. |
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* @param array $old_instance Previously saved values from database. |
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* |
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* @return array $instance Updated safe values to be saved. |
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*/ |
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public function update( $new_instance, $old_instance ) { |
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$instance = array(); |
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$instance['title'] = wp_kses( $new_instance['title'], array() ); |
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if ( $instance['title'] === $this->default_title ) { |
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$instance['title'] = false; // Store as false in case of language change |
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} |
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return $instance; |
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} |
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|
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} |
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|
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/** |
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* Register the widget for use in Appearance -> Widgets. |
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*/ |
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function jetpack_google_translate_widget_init() { |
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register_widget( 'Jetpack_Google_Translate_Widget' ); |
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} |
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add_action( 'widgets_init', 'jetpack_google_translate_widget_init' ); |
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|
