mambax7/extgallery

<?php
/**
 * Adds Meta Slider widget.
 */

// disable direct access
if (!defined('ABSPATH')) {
    exit;
}

/**
 * Class MetaSlider_Widget
 */
class MetaSlider_Widget extends WP_Widget
{
    /**
     * Register widget with WordPress.
     */
    public function __construct()
    {
        parent::__construct('metaslider_widget', // Base ID
                            'Meta Slider', // Name
                            ['description' => __('Meta Slider', 'metaslider')] // Args
        );
    }

    /**
     * Front-end display of widget.
     *
     * @see WP_Widget::widget()
     *
     * @param array $args     Widget arguments.
     * @param array $instance Saved values from database.
     */
    public function widget($args, $instance)
    {
        extract($args);

        if (isset($instance['slider_id'])) {
            $slider_id = $instance['slider_id'];

            $title = apply_filters('widget_title', $instance['title']);

            echo $before_widget;
            if (!empty($title)) {
                echo $before_title . $title . $after_title;
            }

            echo do_shortcode("[metaslider id={$slider_id}]");
            echo $after_widget;
        }
    }

    /**
     * Sanitize widget form values as they are saved.
     *
     * @see WP_Widget::update()
     *
     * @param array $new_instance Values just sent to be saved.
     * @param array $old_instance Previously saved values from database.
     *
     * @return array Updated safe values to be saved.
     */
    public function update($new_instance, $old_instance)
    {
        $instance              = [];
        $instance['slider_id'] = strip_tags($new_instance['slider_id']);
        $instance['title']     = strip_tags($new_instance['title']);

        return $instance;
    }

    /**
     * Back-end widget form.
     *
     * @see WP_Widget::form()
     *
     * @param array $instance Previously saved values from database.
     */
    public function form($instance)
    {
        $selected_slider = 0;
        $title           = '';
        $sliders         = false;

        if (isset($instance['slider_id'])) {
            $selected_slider = $instance['slider_id'];
        }

        if (isset($instance['title'])) {
            $title = $instance['title'];
        }

        $posts = get_posts([
                               'post_type'      => 'ml-slider',
                               'post_status'    => 'publish',
                               'orderby'        => 'date',
                               'order'          => 'ASC',
                               'posts_per_page' => -1,
                           ]);

        foreach ($posts as $post) {
            $active = $selected_slider == $post->ID ? true : false;

            $sliders[] = [
                'active' => $active,
                'title'  => $post->post_title,
                'id'     => $post->ID,
            ];
        } ?>
        <p>
        <?php if ($sliders) {
        ?>
        <p>
            <label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:'); ?></label>
            <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr($title); ?>">
        </p>
        <label for="<?php echo $this->get_field_id('slider_id'); ?>"><?php _e('Select Slider:', 'metaslider'); ?></label>
        <select id="<?php echo $this->get_field_id('slider_id'); ?>" name="<?php echo $this->get_field_name('slider_id'); ?>">
            <?php
            foreach ($sliders as $slider) {
                $selected = $slider['active'] ? 'selected=selected' : '';
                echo "<option value='{$slider['id']}' {$selected}>{$slider['title']}</option>";
            } ?>
        </select>
        <?php
    } else {
        _e('No slideshows found', 'metaslider');
    } ?>
        </p>
        <?php
    }
}

add_action('widgets_init', 'register_metaslider_widget');

function register_metaslider_widget()
{
    register_widget('MetaSlider_Widget');
}

?>