Enrico Sorcinelli

<p><strong>Sticky Postbox</strong> is a piece of code written few years ago as exercise to learn how WordPress handles administration meta boxes’s availables statuses (closed, hidden and sortings).</p>
<p>This very lightweight plugin adds the <em>sticky</em> feature to administration meta boxes allowing them to be sticky at top right corner of the browser window.</p>
<p>Only one meta box can be sticky at once, so a new sticky meta box unstick the current one (if there is one).</p>
<h3>Basic Features</h3>
<ul>
<li>Per-user settings.</li>
<li>Multisite support.</li>
</ul>
<h3>Usage</h3>
<p>Once the plugin is installed and activated you can sticky administration meta boxes using sticky icon (it appears on the top right corner of each box).</p>
<h3>API</h3>
<h4>Constants</h4>
<p>You can use define following constants in your <em>wp-config.php</em> file.</p>
<p><strong><code>STICKY_POSTBOX_DEBUG</code></strong></p>
<p>Turn on debug messages (also <code>WP_DEBUG</code> has to be <code>true</code>).<br />
Default to <code>false</code>.</p>
<p><strong><code>STICKY_POSTBOX_GLOBAL_OPTIONS</code></strong></p>
<p>In a Multisite installation, allows to shares user’s sticky meta boxes settings across all his sites. For example, if you sticky <em>Publish</em> box in editing Pages in a specific site, it will be sticky on all Pages of all sites.<br />
Default to <code>false</code>.</p>
<p><strong><code>STICKY_POSTBOX_AUTOENABLE</code></strong></p>
<p>By default if the plugin has been activated, it starts automatically.<br />
Define to <code>false</code> if you want to init it manually, for example:</p>
<pre><code>// Activate manually the plugin once all plugin have been loaded.
add_action( 'plugins_loaded', function() {
    \Sticky_Postbox::get_instance( 
        array(
            'debug'          => WP_DEBUG,
            'global_options' => false,
        )
    );
} );
</code></pre>
<h4>Hooks</h4>
<p>Currently the plugin doesn’t have actions or filters.</p>


Sticky Postbox

Add sticky feature to administration meta boxes.

WPClever

<p>One among the most common elements that can bring about a nicer, customer-friendly experience for eCommerce sites is to use the Sticky Add to Cart. This is to prepare for a more convenient and faster checkout while browsing the store. Many studies have shown that using a sticky add to cart can improve the conversion rate, boost the sales while also facilitating the user experience in online shopping.</p>
<p><strong>WPC Sticky Add to Cart</strong> displays a button that is always on standby on the screen so that customers can easily add products to the cart while scrolling around the page. Especially, when browsing through a long list of products, customers don’t have to scroll back to the top to find the Add to Cart button but instead, it’s always within easy reach.</p>
<p>Though it’s a type of Call to Action, the sticky add to cart button won’t interfere with customers while navigating around as users can choose where to put it on their site. Buyers can preview the item as there will be a thumbnail, price, quantity input, and press the Add to Cart button whenever they want.</p>
<h4>Live demo</h4>
<p>Visit our <a href="https://demo.wpclever.net/wpcsb/" title="live demo" rel="nofollow ugc">live demo</a> here to see how this plugin works.</p>
<h4>Features</h4>
<ul>
<li>Choose a position to display the sticky Add to Cart: top or bottom</li>
<li>Include a thumbnail, price, quantity input and ATC button</li>
<li>Show/hide the quantity input</li>
<li>Compatible with most common WordPress themes and plugins</li>
<li>Work well with special products such as Smart Bundles, Smart Grouped Product & Composite Products</li>
<li>Work well with WPC Bought Together and Force Sells products</li>
<li>Integrated with buttons from WPC Smart Wishlist, Smart Compare, and Smart Quick View plugins</li>
<li>Integrated with WPC Buy Now Button for faster checkout</li>
<li>Work well with decimal step, min/max and default value from the WPC Product Quantity</li>
<li>Localization tab for translation or change the button text</li>
</ul>
<h4>Check out related plugins</h4>
<ul>
<li><a href="https://wordpress.org/plugins/woo-smart-compare/" title="WPC Smart Compare" rel="ugc">WPC Smart Compare</a></li>
<li><a href="https://wordpress.org/plugins/woo-smart-quick-view/" title="WPC Smart Quick View" rel="ugc">WPC Smart Quick View</a></li>
<li><a href="https://wordpress.org/plugins/woo-smart-wishlist/" title="WPC Smart Wishlist" rel="ugc">WPC Smart Wishlist</a></li>
<li><a href="https://wordpress.org/plugins/wpc-buy-now-button/" title="WPC Buy Now Button" rel="ugc">WPC Buy Now Button</a></li>
<li><a href="https://wordpress.org/plugins/wpc-smart-messages/" title="WPC Smart Messages" rel="ugc">WPC Smart Messages</a></li>
</ul>


WPC Sticky Add To Cart for WooCommerce

WPC Sticky Add To Cart brings about a nicer, customer-friendly sticky add-to-cart bar for your site.

Sticky Postbox vs WPC Sticky Add To Cart for WooCommerce