[WordPress] WordPress Widgets: Refactoring, Part 9

00-admin.php

<input type="text" name="widget-title" value="" />

<textarea name="widget-content"></textarea>

<label>
    <input
        type="checkbox"
        value="1"
        name="widget-title-enabled"
    />
    Display Title?
</label>

01-widget-admin.php

<?php

/*
 * This file is part of WordPress Widget Boilerplate
 * (c) Tom McFarlin <tom@tommcfarlin.com>
 *
 * This source file is subject to the GPL license that is bundled
 * with this source code in the file LICENSE.
 */

namespace WordPressWidgetBoilerplate\WordPress;

/**
 * Manages the administrative functionality of the widget.
 */
class WidgetAdmin extends Widget
{
    /**
     * {@inheritdoc}
     */
    public function __construct($widgetSlug)
    {
        parent::__construct($widgetSlug);
    }

    /**
     * Displays the administrative view of the form and includes the options
     * for the instance of the widget as arguments passed into the function.
     *
     * @param array $instance the options for the instance of this widget.
     */
    public function form($instance)
    {
        include plugin_dir_path(__FILE__).'Views/Admin.php';
    }
}

02-widget.php

<?php

/**
 * Registers the core Widget class using the WordPress APIs.
 */
public function load()
{
    register_widget(new Widget('widget-name'));
}

03-widget.php

<?php
/**
 * Registers the core Widget class using the WordPress APIs.
 */
public function load()
{
    register_widget(new WidgetAdmin('widget-name'));
}

04-admin.php

<div class="widget-content">
    <p>
        <input
            type="text"
            name="widget-title"
            value=""
            placeholder="Widget Title"
            class="widefat"
        />
    </p>

    <p>
        <textarea
            name="widget-content"
            placeholder="Widget Content"
            style="width:100%;"></textarea>
    </p>

    <p>
        <input
            type="checkbox"
            value="1"
            name="widget-title-enabled"
            class="checkbox"
        />
        <label for="widget-title-enabled">Display Title?</label>
    </p>
</div><!-- .widget-content -->