Refactor taxonomy widget

Adds new widget form class, which all three widgets can share.

includes/widgets/class-displayfeaturedimagegenesis-widgets.php

@@ -0,0 +1,126 @@
+<?php
+
+class DisplayFeaturedImageGenesisWidgets {
+
+	protected $parent;
+
+	public $instance;
+
+	public function __construct( $parent, $instance ) {
+		$this->parent   = $parent;
+		$this->instance = $instance;
+	}
+
+	/**
+	 * @return array
+	 */
+	public function get_image_size() {
+		$sizes   = genesis_get_image_sizes();
+		$options = array();
+		foreach ( (array) $sizes as $name => $size ) {
+			$options[ $name ] = sprintf( '%s ( %s x %s )', esc_html( $name ), (int) $size['width'], (int) $size['height'] );
+		}
+
+		return $options;
+	}
+
+	/**
+	 * Build boxes with fields.
+	 *
+	 * @param $boxes
+	 * @param string $class
+	 */
+	public function do_boxes( $boxes, $class = '' ) {
+		foreach ( $boxes as $box => $value ) {
+			if ( ! $value ) {
+				continue;
+			}
+			$box_class = ! $class ? 'genesis-widget-column-box' : 'genesis-widget-column-box ' . $class;
+			printf( '<div class="%s">', esc_attr( $box_class ) );
+			echo wp_kses_post( wpautop( $this->box_description( $box ) ) );
+			$this->do_fields( $this->instance, $value );
+			echo '</div>';
+		}
+	}
+
+	/**
+	 * Add a description to a widget settings box.
+	 * @param $box
+	 *
+	 * @return string
+	 */
+	public function box_description( $box ) {
+		$method = "describe_{$box}";
+		return method_exists( $this, $method ) ? $this->$method() : '';
+	}
+
+	/**
+	 * Cycle through the fields for a given box, pick the appropriate method, and go.
+	 * @param $instance
+	 * @param $fields
+	 */
+	public function do_fields( $instance, $fields ) {
+		foreach ( $fields as $field ) {
+			$method = "do_{$field['method']}";
+			if ( method_exists( $this, $method ) ) {
+				$this->$method( $instance, $field['args'] );
+			}
+		}
+	}
+
+	/**
+	 * Generic function to build a text input for the widget form.
+	 * @param $instance
+	 * @param $args
+	 */
+	public function do_text( $instance, $args ) {
+		include $this->path( 'text' );
+	}
+
+	/**
+	 * Generic function to build a select input for the widget form.
+	 * @param $instance
+	 * @param $args
+	 */
+	public function do_select( $instance, $args ) {
+		include $this->path( 'select' );
+	}
+
+	/**
+	 * Generic function to build a number input.
+	 * @param $instance
+	 * @param $args
+	 */
+	public function do_number( $instance, $args ) {
+		include $this->path( 'number' );
+	}
+
+	/**
+	 * Generic function to build a checkbox input.
+	 * @param $instance
+	 * @param $args
+	 */
+	public function do_checkbox( $instance, $args ) {
+		include $this->path( 'checkbox' );
+	}
+
+	/**
+	 * Generic function to build a textarea input
+	 * @param $instance
+	 * @param $args
+	 */
+	public function do_textarea( $instance, $args ) {
+		include $this->path( 'textarea' );
+	}
+
+	/**
+	 * Get path for included files.
+	 *
+	 * @param string $file
+	 *
+	 * @return string
+	 */
+	public function path( $file ) {
+		return trailingslashit( plugin_dir_path( __FILE__ ) . 'admin' ) . $file . '.php';
+	}
+}