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Editing: testimonial.php

<?php
namespace WPCharming\Widgets;
use  Elementor\Widget_Base ;
use  Elementor\Controls_Manager ;

if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly

class WPC_Element_Testimonial_Carousel extends Widget_Base {
	public function get_name() {
		return 'wpc-testimonial-carousel';
	}
	public function get_title() {
		return __( 'Testimonial Carousel', 'wpcharming' );
	}
	public function get_icon() {
		// Icon name from the Elementor font file, as per http://dtbaker.net/web-development/creating-your-own-custom-elementor-widgets/
		return 'eicon-wordpress';
	}
	public function get_categories() {
		return [ 'wpc-elements' ];
	}

protected function _register_controls() {
		$this->start_controls_section(
			'section_content',
			[
				'label' => esc_html__( 'Testimonial Carousel', 'wpcharming' ),
			]
		);

$this->add_control(
			'style',
			[
				'label' => __( 'Testimonial Style', 'wpcharming' ),
				'label_block' => true,
				'description' => __('Choose your testimonial style', 'wpcharming'),
				'type' => Controls_Manager::SELECT,
				'default' => 'default',
				'options' => [
					'default'  => __( 'Default, on a white background color', 'wpcharming' ),
					'inverted' => __( 'Inverted, on a gray background color', 'wpcharming' ),
				],
			]
		);

$this->add_control(
			'list',
			[
				'label' => __( 'Testimonial Item', 'wpcharming' ),
				'type' => Controls_Manager::REPEATER,
				'default' => '',
				'fields' => [
					[
						'name' => 'testimonial_name',
						'label' => __( 'Name', 'wpcharming' ),
						'type' => Controls_Manager::TEXT,
						'default' => '',
						'label_block' => true,
					],
					[
						'name' => 'avatar',
						'label' => __( 'Avatar', 'wpcharming' ),
						'type' => Controls_Manager::MEDIA,
						'default' => '',
						'label_block' => true,
					],
					[
						'name' => 'content',
						'label' => __( 'Content', 'wpcharming' ),
						'type' => Controls_Manager::WYSIWYG,
						'default' => '',
						'show_label' => true,
					],
				],

]
		);

$this->add_control(
			'carousel_autoplay',
			[
				'label' => __( 'Carousel Autoplay', 'wpcharming' ),
				'type' => Controls_Manager::SWITCHER,
				'default' => '',
				'label_on' => __( 'Yes', 'wpcharming' ),
				'label_off' => __( 'No', 'wpcharming' ),
				'return_value' => 'yes'
			]
		);
		$this->add_control(
			'carousel_autoplay_speed',
			[
				'label' => __( 'Carousel Autoplay Speed', 'wpcharming' ),
				'description' => __('Carousel Autoplay Speed in millisecond', 'wpcharming'),
				'label_block' => true,
				'type' => Controls_Manager::NUMBER,
				'default' => ''
			]
		);
		$this->add_control(
			'carousel_speed',
			[
				'label' => __( 'Carousel Speed', 'wpcharming' ),
				'description' => __('Carousel Speed in millisecond', 'wpcharming'),
				'label_block' => true,
				'type' => Controls_Manager::NUMBER,
				'default' => '',
			]
		);

$this->end_controls_section();
	}
	protected function render( $instance = [] ) {
		$settings = $this->get_settings();

$style = $settings['style'];
		$carousel_autoplay = $settings['carousel_autoplay'];
		$carousel_autoplay_speed = $settings['carousel_autoplay_speed'];
		$carousel_speed = $settings['carousel_speed'];
		$testimonials = $settings['list'];

$style_class =  ( $style == 'inverted' )  ? ' inverted' : '';
		$slick_rtl = 'false';
		if ( is_rtl() ){
			$slick_rtl = 'true';
		}

if ( $carousel_autoplay == 'yes' ) {
			$carousel_autoplay = 'true';
		} else {
			$carousel_autoplay = 'false';
		}

if ( $carousel_autoplay_speed == '' ) {
			$carousel_autoplay_speed = '3000';
		}

if ( $carousel_speed == '' ) {
			$carousel_speed = '300';
		}

$carousel_class = 'testimonial_carousel_'.uniqid();

if ( count( $testimonials ) > 1 ) {
			$carousel_class = 'testimonial_carousel_'.uniqid();
			echo '
			<script type="text/javascript">
				jQuery(document).ready(function(){
					"use strict";
					jQuery(".'. $carousel_class .'").slick({
						rtl: '. $slick_rtl .',
						autoplay: '. $carousel_autoplay .' ,
						autoplaySpeed: '. $carousel_autoplay_speed .' ,
						speed: '. $carousel_speed .' ,
						slidesToShow: 1,
						slidesToScroll: 1,
						draggable: false,
						prevArrow: "<span class=\'carousel-prev\'><i class=\'fa fa-angle-left\'></i></span>",
        				nextArrow: "<span class=\'carousel-next\'><i class=\'fa fa-angle-right\'></i></span>",
					});
				});
			</script>';
		}

if ( $testimonials ) {
			?>

<?php
		}

}

protected function _content_template() {}
}

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Name	Type	Actions
.. (Parent Directory)
📄 featured-box.php	FILE	[EDIT]
📄 page-children.php	FILE	[EDIT]
📄 recent-news.php	FILE	[EDIT]
📄 testimonial.php	FILE	[EDIT]

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Editing: testimonial.php