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