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EDIT :: video-widget.php

<?php class gridsby_Video_Widget extends WP_Widget { // constructor function gridsby_video_widget() { $widget_ops = array('classname' => 'gridsby_video_widget_widget', 'description' => esc_html__( 'Video for your sidebar.', 'gridsby') ); parent::__construct(false, $name = esc_html__('MT - Video Widget', 'gridsby'), $widget_ops); $this->alt_option_name = 'gridsby_video_widget'; add_action( 'save_post', array($this, 'flush_widget_cache') ); add_action( 'deleted_post', array($this, 'flush_widget_cache') ); add_action( 'switch_theme', array($this, 'flush_widget_cache') ); } // widget form creation function form($instance) { // Check values $title = isset( $instance['title'] ) ? esc_attr( $instance['title'] ) : ''; $url = isset( $instance['url'] ) ? esc_url( $instance['url'] ) : ''; ?> <p> <label for="<?php echo sanitize_text_field( $this->get_field_id('title')); ?>"><?php esc_html_e('Title', 'gridsby'); ?></label> <input class="widefat" id="<?php echo sanitize_text_field( $this->get_field_id('title')); ?>" name="<?php echo sanitize_text_field( $this->get_field_name('title')); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" /> </p> <p><label for="<?php echo sanitize_text_field( $this->get_field_id( 'url' )); ?>"><?php esc_html_e( 'Paste the URL of the video (only from a network that supports oEmbed, like Youtube, Vimeo etc.):', 'gridsby' ); ?></label> <input class="widefat" id="<?php echo sanitize_text_field( $this->get_field_id( 'url' )); ?>" name="<?php echo sanitize_text_field( $this->get_field_name( 'url' )); ?>" type="text" value="<?php echo esc_url( $url ); ?>" size="3" /></p> <?php } // update widget function update($new_instance, $old_instance) { $instance = $old_instance; $instance['title'] = esc_attr($new_instance['title']); $instance['url'] = esc_url_raw($new_instance['url']); $this->flush_widget_cache(); $alloptions = wp_cache_get( 'alloptions', 'options' ); if ( isset($alloptions['gridsby_video_widget']) ) delete_option('gridsby_video_widget'); return $instance; } function flush_widget_cache() { wp_cache_delete('gridsby_video_widget', 'widget'); } // display widget function widget($args, $instance) { $cache = array(); if ( ! $this->is_preview() ) { $cache = wp_cache_get( 'gridsby_video_widget', 'widget' ); } if ( ! is_array( $cache ) ) { $cache = array(); } if ( ! isset( $args['widget_id'] ) ) { $args['widget_id'] = $this->id; } if ( isset( $cache[ $args['widget_id'] ] ) ) { echo $cache[ $args['widget_id'] ]; return; } ob_start(); extract($args); $title = ( ! empty( $instance['title'] ) ) ? esc_attr( $instance['title'] ) : esc_html__( 'Video', 'gridsby' ); $title = apply_filters( 'widget_title', esc_attr( $title ), $instance, $this->id_base ); $url = isset( $instance['url'] ) ? esc_url( $instance['url'] ) : ''; echo $before_widget; if ( $title ) echo $before_title . esc_attr( $title ) . $after_title; if( ($url) ) { echo wp_oembed_get($url); } echo $after_widget; if ( ! $this->is_preview() ) { $cache[ $args['widget_id'] ] = ob_get_flush(); wp_cache_set( 'gridsby_video_widget', $cache, 'widget' ); } else { ob_end_flush(); } } }

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