Lovro Hrust

<p>Plugin to support navigation by pages – similar to built in function the_posts_navigation() for posts.<br />
Pages in navigation are filtered by provided menu (Primary menu by default) and sorted in the same order as in menu.<br />
By default, main menu is used, but different menu could be used by calling function for displaying with different menu as parameter.</p>
<h3>Disclaimer!</h3>
<p>This plugin works only with classic themes. With FSE themes it will not work, since it depends on classic menus.</p>
<h3>Usage</h3>
<h4>Basic</h4>
<p>Just install and call <code>the_pages_navigation()</code> in your php template. There is also a <code>get_the_pages_navigation()</code> function which returns string with same content.<br />
Arguments to these functions could be supplied, all optional.<br />
* $menu – a menu ID, slug, name, or object (WP_Term) for which to show pages<br />
* $start_position – start position from which position in menu to start navigation<br />
? $end_position – to which position in menu to show navigation</p>
<h4>Advanced</h4>
<p>There are filters that can help to customize plugin output.</p>
<p>Change menu filter</p>
<pre><code>apply_filters('page_nav_menu', $default_menu)
</code></pre>
<p>Filters menu used for navigation.</p>
<ul>
<li>$default_menu – a menu ID, slug, name, or object (WP_Term)</li>
</ul>
<p>Arrow filters</p>
<pre><code>apply_filters( 'page_nav_left_arrow', $HTML )
apply_filters( 'page_nav_right_arrow', $HTML )
</code></pre>
<p>Filters arrow output.</p>
<ul>
<li>$HTML – HTML of arrow, coded as SVG, img or something else.</li>
</ul>
<p>Filter output</p>
<pre><code>apply_filters( 'arrow_wrapper', $HTML_output, $left, $enabled, $output_image, $output_link, $output_div, $output_text )
</code></pre>
<p>Filters whole HTML output.</p>
<ul>
<li>$HTML_output – as the name says</li>
<li>$left – output is for left side (previous)</li>
<li>$enabled – navigation on that side is enabled</li>
<li>$output_image – html of arrow image</li>
<li>$output_link – URL of link to which arrow leads</li>
<li>$output_div – wrapper of text besides arrow</li>
<li>$output_text – text besides arrow</li>
</ul>
<h4>Examples of filtering</h4>
<pre><code>add_filter( 'page_nav_left_arrow', function() {
    return '<svg width="53" height="32" viewBox="0 0 53 32" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M51.77 15.994H1M16.622 31L1 15.998 16.622 1v30z" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/></svg>';
} );
</code></pre>


Page navigation by menu

Create navigation to next/previous pages similar to navigation for posts. Previous and next pages are determined from menu.

CrestaProject

<p><a href="https://crestaproject.com/downloads/cresta-posts-box/" rel="nofollow ugc">Plugin Homepage & Demo</a></p>
<p>With <strong>Cresta Posts Box</strong> you can show, in a single page (posts, pages or custom post types), a small box that allows the reader to <strong>go to the next or previous post</strong>. The box appears only when the reader finishes reading the current post.</p>
<p><strong>Some features</strong></p>
<ul>
<li>Choose to show next or previous post</li>
<li>Choose the box position (left or right)</li>
<li>Choose the font size</li>
<li>Choose the box width</li>
<li>and more…</li>
</ul>
<p><strong>PRO version features</strong></p>
<ul>
<li>Show Random Post</li>
<li>Show Related Post</li>
<li>Set box background color</li>
<li>Set box text and link color</li>
<li>Set border box and border radius box</li>
<li>5 Animations</li>
<li>and much more…</li>
</ul>


Cresta Posts Box

In free version, you have to chose to show only previous or next post. Too limited to be really useful.

Too poor in free version

Show the next or previous post in a box that appears when the user scrolls to the bottom of a current post.

Page navigation by menu vs Cresta Posts Box