<p><ahref="#R-image-82b28fbac967bb50dc3cca3545b7dfd6"class="lightbox-link"><imgsrc="../../basics/topbar/topbar-closed.png"alt="Topbar on mobile devices"class="figure-image bg-white border lightbox noshadow"style="height: auto; width: auto;"loading="lazy"></a>
<ahref="javascript:history.back();"class="lightbox-back"id="R-image-82b28fbac967bb50dc3cca3545b7dfd6"><imgsrc="../../basics/topbar/topbar-closed.png"alt="Topbar on mobile devices"class="lightbox-image bg-white border lightbox noshadow"loading="lazy"></a></p>
<p>Nevertheless, your requirements may differ from this configuration. Luckily the theme got you covered as the themebar, its buttons and the functionality behind these buttons is fully configurable by you.</p>
<p><ahref="#R-image-d719f8a8c694c0b05201ff2b5add7708"class="lightbox-link"><imgsrc="../../basics/topbar/topbar-areas.png"alt="Topbar with default areas marked"class="figure-image bg-white border lightbox noshadow"style="height: auto; width: auto;"loading="lazy"></a>
<ahref="javascript:history.back();"class="lightbox-back"id="R-image-d719f8a8c694c0b05201ff2b5add7708"><imgsrc="../../basics/topbar/topbar-areas.png"alt="Topbar with default areas marked"class="lightbox-image bg-white border lightbox noshadow"loading="lazy"></a></p>
<li><ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/area/start.html"target="_blank"><strong>start</strong></a>: shown between menu and breadcrumb</li>
<li><ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/area/end.html"target="_blank"><strong>end</strong></a>: shown on the opposite breadcrumb side in comparison to the <em>start</em> area</li>
<li><ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/area/more.html"target="_blank"><strong>more</strong></a>: shown when pressing the
<p>While you can not add additional areas in the topbar, you are free to configure addtional buttons that behave like the <em>more</em> button, providing further user defined areas.</p>
<h2id="buttons">Buttons</h2>
<p>The theme ships with the following predefined buttons (from left to right in the screenshot)</p>
</span><ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button/sidebar.html"target="_blank"><strong>sidebar</strong></a>: opens the sidebar flyout if in mobile layout</li>
</span><ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button/toc.html"target="_blank"><strong>toc</strong></a>: opens the table of contents in an overlay</li>
</span><ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button/edit.html"target="_blank"><strong>edit</strong></a>: browses to the editable page if the <code>editURL</code><ahref="../../basics/configuration/#global-site-parameters">parameter is set</a></li>
</span><ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button/print.html"target="_blank"><strong>print</strong></a>: browses to the chapters printable page if <ahref="../../basics/configuration/#activate-print-support">print support</a> was activated</li>
</span><ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button/prev.html"target="_blank"><strong>prev</strong></a>: browses to the previous page if there is one</li>
</span><ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button/next.html"target="_blank"><strong>next</strong></a>: browses to the next page if there is one</li>
</span><ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button/more.html"target="_blank"><strong>more</strong></a>: opens the overlay for the <em>more</em> area</li>
<p>Not all buttons are displayed at every given time. This is configurable (see below if interested).</p>
<h2id="redefining-areas">Redefining Areas</h2>
<p>Each predefined area and button comes in their own file. By that it is easy for you to overwrite an area file in your installation reusing only the buttons you like.</p>
<p>Eg. you can redefine the predefined <em>end</em> area by adding the file <ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/area/end.html"target="_blank"><code>layouts/partials/topbar/area/end.html</code></a> in your installation (not in the theme itself) to remove all but the <em>more</em> button.</p>
<p>The below example sets an explicit value for the <code>onempty</code> parameter, overriding the specific default value for this button (these defaults vary depending on the button). The parameter causes the <em>more</em> button to always be displayed instead of hiding once its content is empty.</p>
</span></span><spanclass="line"><spanclass="cl"><spanclass="p">)}}</span></span></span></code></pre></div><h2id="defining-own-buttons">Defining own Buttons</h2>
<h3id="button-types">Button Types</h3>
<p>The theme distingushies between two types of buttons:</p>
<li><ahref="#button"><strong>button</strong></a>: a clickable button that either browses to another site, triggers a user defined script or opens an overlay containing user defined content</li>
</span><em>more</em> button, to define your own area overlay buttons</li>
</ul>
<h3id="button-parameter">Button Parameter</h3>
<h4id="screen-widths-and-actions">Screen Widths and Actions</h4>
<p>Depending on the screen width you can configure how the button should behave. Screen width is divided into three classes:</p>
<ul>
<li><strong>s</strong>: (controlled by the <code>onwidths</code> parameter) mobile layout where the menu sidebar is hidden</li>
<li><strong>m</strong>: (controlled by the <code>onwidthm</code> parameter) desktop layout with visible sidebar while the content area width still resizes</li>
<li><strong>l</strong>: (controlled by the <code>onwidthl</code> parameter) desktop layout with visible sidebar once the content area reached its maximum width</li>
</ul>
<p>For each width class, you can configure one of the following actions:</p>
<li><code>show</code>: the button is displayed in its given area</li>
<li><code>hide</code>: the button is removed</li>
<li><code>area-XXX</code>: the button is moved from its given area into the area <code>XXX</code>; eg. this is used to move buttons to the <em>more</em> area overlay in the mobile layout</li>
<h4id="hiding-and-disabling-stuff">Hiding and Disabling Stuff</h4>
<p>While hiding a button dependend on the screen size can be configured with the above described <em>hide</em> action, you may want to hide the button on certain other conditions aswell.</p>
<p>For example, the <em>print</em> button in its default configuration should only be displayed if print support was configured. This is done in your button template by checking the conditions first before displaying the button (see <ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button/print.html"target="_blank"><code>layouts/partials/topbar/button/print.html</code></a>).</p>
<p>Another prefered condition for hiding a button is, if the displayed overlay is empty. This is the case for the <em>toc</em> (see <ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button/toc.html"target="_blank"><code>layouts/partials/topbar/button/toc.html</code></a>) aswell as the <em>more</em> button (see <ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button/more.html"target="_blank"><code>layouts/partials/topbar/button/more.html</code></a>) and controlled by the parameter <code>onempty</code>.</p>
<p>If you want to disable a button containing <em>no overlay</em>, this can be achieved by an empty <code>href</code> parameter. An example can be seen in the <em>prev</em> button (see <code>layouts/partials/topbar/button/prev.html</code>) where the URL for the previous site may be empty.</p>
<p>Contains the basic button functionality and is used as a base implementation for all other buttons (<ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/func/button.html"target="_blank"><code>layouts/partials/topbar/func/button.html</code></a>).</p>
<p>Call this from your own button templates if you want to implement a button without an overlay like the <em>print</em> button (<ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button/print.html"target="_blank"><code>layouts/partials/topbar/button/print.html</code></a>) or with an overlay containing arbitrary content like the <em>toc</em> button (<ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button/toc.html"target="_blank"><code>layouts/partials/topbar/button/toc.html</code></a>).</p>
<td>Either the destination URL for the button or JavaScript code to be executed on click.<br><br>- if starting with <code>javascript:</code> all following text will be executed in your browser<br>- every other string will be interpreted as URL<br>- if empty the button will be displayed in disabled state regardless of its <strong>content</strong></td>
<td>Defines what to do with the button if <strong>href</strong> is not empty but the content overlay is empty:<br><br>- <code>disable</code>: The button is displayed in disabled state.<br>- <code>hide</code>: The button is removed.</td>
<td>The action, that should be executed if the site is displayed in the given width:<br><br>- <code>show</code>: The button is displayed in its given area<br>- <code>hide</code>: The button is removed.<br>- <code>area-XXX</code>: The button is moved from its given area into the area <code>XXX</code>.</td>
<p>Contains the basic functionality to display area overlay buttons (<ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/func/area-button.html"target="_blank"><code>layouts/partials/topbar/func/area-button.html</code></a>).</p>
<p>Call this from your own button templates if you want to implement a button with an area overlay like the <em>more</em> button (<ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button/more.html"target="_blank"><code>layouts/partials/topbar/button/more.html</code></a>).</p>
<td>Defines what to do with the button if the content overlay is empty:<br><br>- <code>disable</code>: The button is displayed in disabled state.<br>- <code>hide</code>: The button is removed.</td>
<td>The action, that should be executed if the site is displayed in the given width:<br><br>- <code>show</code>: The button is displayed in its given area<br>- <code>hide</code>: The button is removed.<br>- <code>area-XXX</code>: The button is moved from its given area into the area <code>XXX</code>.</td>
<p>The predefined buttons by the theme (all other buttons besides the <em>more</em> and <em>toc</em> button in <ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button"target="_blank"><code>layouts/partials/topbar/button</code></a>).</p>
<td>The action, that should be executed if the site is displayed in the given width:<br><br>- <code>show</code>: The button is displayed in its given area<br>- <code>hide</code>: The button is removed.<br>- <code>area-XXX</code>: The button is moved from its given area into the area <code>XXX</code>.</td>
<p>The predefined buttons by the theme that open an overlay (the <em>more</em> and <em>toc</em> button in <ahref="https://github.com/McShelby/hugo-theme-relearn/blob/main/layouts/partials/topbar/button"target="_blank"><code>layouts/partials/topbar/button</code></a>).</p>
<td>Defines what to do with the button if the content overlay is empty:<br><br>- <code>disable</code>: The button is displayed in disabled state.<br>- <code>hide</code>: The button is removed.</td>
<td>The action, that should be executed if the site is displayed in the given width:<br><br>- <code>show</code>: The button is displayed in its given area<br>- <code>hide</code>: The button is removed.<br>- <code>area-XXX</code>: The button is moved from its given area into the area <code>XXX</code>.</td>
