Merge pull request #30 from justcoded/feature/fields_page_builder

Feature/fields page builder

Author: aprokopenko

.gitignore

@@ -1,4 +1,3 @@
-
 # editor
 /nbproject/private/
 /nbproject/

assets/css/select2.min.css

@@ -0,0 +1,143 @@
+<?php
+
+namespace JustCoded\WP\Framework\Page_Builder\v25\Fields;
+
+/**
+ * Class Just_Field_Post
+ */
+class Field_Select_Posts extends \SiteOrigin_Widget_Field_Base {
+
+	/**
+	 * An array of post types to use in the autocomplete query. Only used for posts.
+	 *
+	 * @var array
+	 */
+	protected $post_types = '';
+
+	/**
+	 * Render field HTML
+	 *
+	 * @param mixed $value Widget values.
+	 * @param array $instance Widget instance.
+	 *
+	 * @return mixed|void
+	 */
+	protected function render_field( $value, $instance ) {
+		$posts = array();
+		if ( ! empty( $value ) ) {
+			$posts = get_posts( [
+				'post__in'            => $value,
+				'ignore_sticky_posts' => true,
+			] );
+		}
+		?>
+		<select name="<?php echo esc_attr( $this->element_name ) ?>" id="<?php echo esc_attr( $this->element_id ) ?>"
+				class="widefat jc-widget-field-select-posts"
+				multiple="multiple"
+				data-post_types="<?php echo esc_attr( $this->post_types ); ?>"
+		>
+			<?php if ( ! empty( $posts ) ) : foreach ( $posts as $post ) : ?>
+				<option value="<?php echo esc_attr( $post->ID ); ?>" selected="selected">
+					<?php echo esc_html( $this->get_post_caption( $post ) ); ?>
+				</option>
+			<?php endforeach; endif; ?>
+		</select>
+		<?php
+	}
+
+	/**
+	 * Sanitize the input received from their HTML form field.
+	 *
+	 * @param mixed $value Value from user input.
+	 * @param array $instance Widget instance.
+	 *
+	 * @return array|mixed
+	 */
+	protected function sanitize_field_input( $value, $instance ) {
+		$values = array();
+		if ( ! is_null( $value ) ) {
+			$values = is_array( $value ) ? $value : array( $value );
+			$values = array_map( 'intval', $values );
+		}
+
+		return $values;
+	}
+
+	/**
+	 * Enqueue needed js.
+	 */
+	public function enqueue_scripts() {
+		wp_enqueue_script(
+			'pagebuilder-widget-field-select-posts',
+			plugin_dir_url( JTF_PLUGIN_FILE ) . 'framework/Page_Builder/v25/Fields/js/select-posts.js',
+			array( 'jquery', 'select2' ),
+			'1.0'
+		);
+	}
+
+	/**
+	 * Action to handle searching posts
+	 */
+	public static function ajax_search_posts() {
+		if ( empty( $_REQUEST['_widgets_nonce'] )
+			|| ! wp_verify_nonce( $_REQUEST['_widgets_nonce'], 'widgets_action' )
+		) {
+			wp_die( __( 'Invalid request.', 'so-widgets-bundle' ), 403 );
+		}
+
+		global $wpdb;
+
+		$filter = '';
+		$params = array(
+			'%' . $wpdb->esc_like( $_REQUEST['term'] ) . '%',
+		);
+		if ( ! empty( $_REQUEST['types'] ) ) {
+			$registered_cpt = (array) get_post_types( array(
+				'public' => true,
+			) );
+			$post_types     = array_intersect( explode( ',', $_REQUEST['types'] ), $registered_cpt );
+			if ( ! empty( $post_types ) ) {
+				$filter .= ' AND post_type IN (' . trim( str_repeat( '%s,', count( $post_types ) ), ',' ) . ')';
+				$params  = array_merge( $params, $post_types );
+			}
+		}
+
+		if ( ! empty( $_REQUEST['selected'] ) ) {
+			$filter .= ' AND `ID` NOT IN (' . trim( str_repeat( '%d,', count( $_REQUEST['selected'] ) ), ',' ) . ')';
+			$params  = array_merge( $params, $_REQUEST['selected'] );
+		}
+
+		$rows = $wpdb->get_results( $wpdb->prepare( "
+			SELECT *
+			FROM {$wpdb->posts}
+			WHERE
+				post_status = 'publish'
+				AND post_title LIKE %s
+				{$filter}
+			ORDER BY post_modified DESC
+			LIMIT 20
+		", $params ), OBJECT_K );
+
+		$results = [];
+		foreach ( $rows as $row ) {
+			$results[] = [
+				'id'   => $row->ID,
+				'text' => self::get_post_caption( $row ),
+			];
+		}
+
+		wp_send_json( array( 'results' => $results ) );
+		exit;
+	}
+
+	/**
+	 * Generate caption to display in select box
+	 *
+	 * @param \WP_Post $post Post to generate caption for.
+	 *
+	 * @return string
+	 */
+	protected static function get_post_caption( $post ) {
+		return "$post->post_title ({$post->post_type})";
+	}
+}