<?php

/**
 * Plugin Name: MyThemeShop 300x250 Ad Widget
 * Description: A widget for 300 x 250 ad (Single banner)
 * Version: 1.0
 */


// Load widget.
add_action( 'widgets_init', 'mts_ad_300_widgets' );

// Register widget.
function mts_ad_300_widgets() {
	register_widget( 'mts_ad_300_Widget' );
}

// Widget class.
class mts_ad_300_widget extends WP_Widget {


	/**
	 * Widget setup.
	 */
	function __construct() {

		// Widget settings.
		$widget_ops = array(
			'classname'   => 'mts_ad_300_widget',
			'description' => __('A widget for 300 x 250 ad (Single banner)', 'point' ),
		);

		// Widget control settings.
		$control_ops = array(
			'width'   => 300,
			'height'  => 350,
			'id_base' => 'mts_ad_300_widget',
		);

		// Create the widget.
		parent::__construct( 'mts_ad_300_widget', __('MyThemeShop 300x250 Ad', 'point' ), $widget_ops, $control_ops );

	}

	/**
	 * Display Widget.
	 *
	 * @param array $args
	 * @param array $instance
	 */
	function widget( $args, $instance ) {
		extract( $args );

		// Variables from the widget settings.
		$title = apply_filters( 'widget_title', $instance['title'] );
		$ad    = $instance['ad'];
		$link  = $instance['link'];

		// Before widget (defined by theme functions file).
		echo $before_widget;

		// Display the widget title if one was input.
		if ( $title )
			echo $before_title . $title . $after_title;

		// Display a containing div.
		echo '<div class="ad-300">';

		// Display Ad.
		if ( $link )
			echo '<a href="' . esc_url( $link ) . '"><img src="' . esc_url( $ad ) . '" width="300" height="250" alt="" /></a>';

		elseif ( $ad )
		 	echo '<img src="' . esc_url( $ad ) . '" width="300" height="250" alt="" />';

		echo '</div>';

		// After widget (defined by theme functions file).
		echo $after_widget;
	}


	/**
	 * Update Widget
	 *
	 * @param array $new_instance
	 * @param array $old_instance
	 *
	 * @return array
	 */
	function update( $new_instance, $old_instance ) {
		$instance = $old_instance;

		// Strip tags to remove HTML (important for text inputs).
		$instance['title'] = strip_tags( $new_instance['title'] );

		// No need to strip tags.
		$instance['ad'] = $new_instance['ad'];
		$instance['link'] = $new_instance['link'];

		return $instance;
	}

	/**
	 * Widget Settings (Displays the widget settings controls on the widget panel).
	 *
	 * @param array $instance
	 *
	 * @return string|void
	 */
	function form( $instance ) {

		// Set up some default widget settings.
		$defaults = array(
			'title' => '',
			'ad'    => get_template_directory_uri() . '/images/300x250.png',
			'link'  => 'https://mythemeshop.com/',
		);

		$instance = wp_parse_args( (array) $instance, $defaults ); ?>

		<!-- Widget Title: Text Input -->
		<p>
			<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e('Title:', 'point' ) ?></label>
			<input type="text" class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" value="<?php echo esc_attr( $instance['title'] ); ?>" />
		</p>

		<!-- Ad image url: Text Input -->
		<p>
			<label for="<?php echo $this->get_field_id( 'ad' ); ?>"><?php _e('Ad image url:', 'point' ) ?></label>
			<input type="text" class="widefat" id="<?php echo $this->get_field_id( 'ad' ); ?>" name="<?php echo $this->get_field_name( 'ad' ); ?>" value="<?php echo esc_url( $instance['ad'] ); ?>" />
		</p>

		<!-- Ad link url: Text Input -->
		<p>
			<label for="<?php echo $this->get_field_id( 'link' ); ?>"><?php _e('Ad link url:', 'point' ) ?></label>
			<input type="text" class="widefat" id="<?php echo $this->get_field_id( 'link' ); ?>" name="<?php echo $this->get_field_name( 'link' ); ?>" value="<?php echo esc_url( $instance['link'] ); ?>" />
		</p>

		<?php
		}
}
?>