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.

Senff - a11n

<h4>Summary</h4>
<p>The Gutenberg Sticky Block can be added to any Post or Page and will be sticky as soon as it hits the top of the page after you scroll down. The Sticky Block can contain any other Blocks (Paragraphs, Images, etc.), and can also be used <em>in</em> other Blocks (e.g. Column or Table).</p>
<p>The main principle is the same as my <a href="https://wordpress.org/support/plugin/sticky-menu-or-anything-on-scroll" rel="ugc">Sticky Menu (Or Anything)</a> plugin, and the basic code of that plugin has been used in this Sticky Block plugin as well. If you want to make anything sticky outside of the content area (e.g navigation menu, widgets), use the <em>Sticky Menu (Or Anything)</em> plugin instead of Sticky Block.</p>
<p>Featured BLOCK OF THE WEEK (Sep 16, 2021).</p>
<h4>Features</h4>
<ul>
<li><strong>Any Block can be added inside the Sticky Block</strong>: the Sticky Block works as a “wrapper” or “grouping” block, that can hold every other type of Block.</li>
<li><strong>The Sticky Block can be added inside other Blocks</strong>: any block that works as a “wrapper” (such as the Columns Block or the Table Block) can also hold a Sticky Block.</li>
<li><strong>Positioning from top</strong> (optional): you can add any amount of space between the Sticky Block and the top of the page, so that the element is not always stuck at the “ceiling” of the page.</li>
<li><strong>Enable for certain screen sizes only</strong> (optional): you can set a minimum and/or maximum screen size where the stickiness should work. This can be handy if you have a responsive site and you don’t want your Block to be sticky on smaller screens, for example. </li>
<li><strong>Push-up element</strong> (optional): you can pick any other element lower on the page that will push the Sticky Block up again (for example a footer, or even another Sticky Block).</li>
<li><strong>Admin Bar aware</strong>: checks if the current user has an Admin Toolbar at the top of the page. If it has, the Sticky Block will not obscure it (or be obscured by it).</li>
<li><strong>Z-index</strong>: in case there are other elements on the page that obscure or peek through your Sticky Block, you can add a Z-index easily. This will only be applied once the Block is sticky.</li>
</ul>


Sticky Block for Gutenberg Editor

The Gutenberg Sticky Block will stick at the top of the page once you scroll down.

Sticky Postbox vs Sticky Block for Gutenberg Editor