Add PR #215 to enable additional markup customization options in AdminThemeUikit via @BernhardBaumrock

Co-authored-by: BernhardBaumrock <office@baumrock.com>

wire/core/AdminThemeFramework.php

@@ -9,7 +9,7 @@
  * This file is licensed under the MIT license.
  * https://processwire.com/about/license/mit/
  * 
- * ProcessWire 3.x, Copyright 2021 by Ryan Cramer
+ * ProcessWire 3.x, Copyright 2022 by Ryan Cramer
  * https://processwire.com
  *
  * @property bool $isSuperuser
@@ -19,6 +19,7 @@
  * @property bool|int $useAsLogin
  * @method array getUserNavArray()
  * @method array getPrimaryNavArray()
+ * @method string renderFile($basename, array $vars = array())
  *
  */
 abstract class AdminThemeFramework extends AdminTheme {
@@ -61,6 +62,30 @@ abstract class AdminThemeFramework extends AdminTheme {
 	 */
 	protected $sanitizer;
 
+	/**
+	 * Custom template path when it exists, i.e. /site/templates/AdminThemeUikit/
+	 *
+	 * @var string|null Null when not yet known, blank '' when it does not exist, populated when it exists
+	 *
+	 */
+	protected $customTemplatePath = null;
+
+	/**
+	 * Default template path
+	 * 
+	 * @var string|null
+	 * 
+	 */
+	protected $defaultTemplatePath = null;
+
+	/**
+	 * Is the renderFile() method hooked? Null when not known, bool when known
+	 *
+	 * @var bool|null
+	 *
+	 */
+	protected $renderFileHooked = null;
+
 	/**
 	 * Construct
 	 *
@@ -766,6 +791,88 @@ abstract class AdminThemeFramework extends AdminTheme {
 		if(empty($extras)) $extras = $this->getExtraMarkup();
 		return isset($extras[$for]) ? $extras[$for] : '';
 	}
+	
+	/**
+	 * Render a admin theme template file
+	 *
+	 * This method is only used if it is hooked
+	 *
+	 * #pw-hooker
+	 *
+	 * @param string $file Full path and filename
+	 * @param array $vars Associative array of variables to populate in rendered file
+	 * @return string Returns blank string when $echo is true
+	 * @since 3.0.196
+	 *
+	 */
+	protected function ___renderFile($file, array $vars = array()) {
+		extract($vars);
+		ob_start();
+		include($file);
+		$out = ob_get_contents();
+		ob_end_clean();
+		return $out;
+	}
+
+	/**
+	 * Include an admin theme file
+	 *
+	 * @param string $basename
+	 * @param array $vars
+	 * @since 3.0.196
+	 *
+	 */
+	public function includeFile($basename, array $vars = array()) {
+
+		$file = '';
+
+		if($this->renderFileHooked === null) {
+			$this->renderFileHooked = $this->hasHook('renderFile()');
+		}
+
+		if($this->defaultTemplatePath === null) {
+			$this->defaultTemplatePath = $this->wire()->config->paths($this);
+		}
+		
+		if($this->customTemplatePath === null) {
+			$path = $this->wire()->config->paths->templates . $this->className() . '/';
+			$this->customTemplatePath = is_dir($path) ? $path : '';
+		}
+
+		if($this->customTemplatePath) {
+			$file = $this->customTemplatePath . $basename;
+			if(file_exists($file)) $this->warning($file);
+			if(!file_exists($file)) $file = '';
+		}
+
+		if($file === '') $file = $this->defaultTemplatePath . $basename;
+
+		$fuel = $this->wire()->fuel;
+		$vars['fuel'] = $fuel;
+		$vars = array_merge($fuel->getArray(), $vars);
+		unset($vars['file'], $vars['vars']); // just in case either was set
+
+		if($this->renderFileHooked) {
+			echo $this->renderFile($file, $vars);
+		} else {
+			extract($vars);
+			include($file);
+		}
+	}
+	
+	/**
+	 * Set custom path for admin theme templates
+	 * 
+	 * This is for modules to optionally set a custom template path. If not set then the default
+	 * in /site/templates/AdminTheme[Class]/ is used. 
+	 * 
+	 * @param string $path
+	 * @since 3.0.196
+	 * 
+	 */
+	public function setCustomTemplatePath($path) {
+		$this->customTemplatePath = $path;
+	}
 
 	/**
 	 * Module Configuration

wire/modules/AdminTheme/AdminThemeUikit/README.md

@@ -1,11 +1,96 @@
 # AdminThemeUikit
 
-This document currently covers customization of Uikit styles and instructions on
+This document currently covers customization of the Uikit styles, overriding admin theme
-how to upgrade the core Uikit version.
+template files and markup, and instructions on how to upgrade the core Uikit version.
 
-## Customization
+## Customizing Markup
 
-### Short version
+### Overriding markup files
+
+You can overwrite any of the markup files located in `wire/modules/AdminTheme/AdminThemeUikit/` 
+by placing a file with the same name in `/site/templates/AdminThemeUikit/`. You could for example 
+overwrite the footer by adding the file `/site/templates/AdminThemeUikit/_footer.php` to your 
+installation:
+
+```html
+<div>My custom footer</div>
+```
+
+The files you can replace include:
+
+ - `_head.php*` - Document `<head>`.
+ - `_masthead.php` - Masthead and primary navigation.
+ - `_search-form.php` - Search form that appears in the masthead. 
+ - `_content.php` -  Main content area.
+ - `_content-head.php` - Main content header, including breadcrumbs, headline, etc.
+ - `_content-body.php` - Main content body where most output goes. 
+ - `_footer.php` -  Footer area.
+ - `_offcanvas.php` - Offcanvas navigation bar. 
+ - `_body-scripts.php` - Scripts that appear before `</body>`.
+ - `_main.php` - The main markup file that includes all the others above. 
+ 
+For example, let's say you wanted to replace the main content `#pw-content-body`
+with "Hello World", add file `/site/templates/AdminThemeUikit/_content-body.php`
+and place the following in it:
+
+```html
+<p>Hello World</p>
+```
+
+This replaces all the content of every admin page with your Hello World message. That's not
+very useful so let's instead copy the contents of the default `_content-body.php` and use 
+that as our starting point, and append our Hello World message within it:
+
+```php
+<?php namespace ProcessWire;
+if(!defined("PROCESSWIRE")) die(); ?>
+<div id='pw-content-body'>
+  <?php echo $page->get('body') . $content; ?>
+  <p>Hello World</p>
+</div>	
+```
+
+### Customizing markup with hooks
+
+You can hook into rendering of the admin theme partials:
+
+```php
+$wire->addHookAfter('AdminThemeUikit::renderFile', function($event) {
+  $file = $event->arguments(0); // full path/file being rendered 
+  $vars = $event->arguments(1); // assoc array of vars sent to file
+  if(basename($file) === '_footer.php') {
+    $event->return = str_replace(
+      "ProcessWire",
+      "ProcessWire is the best CMS",
+      $event->return
+    );
+  }
+});
+```
+
+### Additional recognized extra markup regions
+
+You can use `$adminTheme->addExtraMarkup($name, $value)` to add additional markup to
+several recognized regions. 
+
+```php
+$adminTheme->addExtraMarkup("head", "<script>alert('test!');</script>");
+```
+
+The `$value` can be any additional markup that you want to insert and the `$name` can be 
+any of the following (in order of appearance): 
+
+- `head` - Inserted before `</head>`.
+- `masthead` - Inserted at the end of `div#pw-mastheads`.
+- `notices` - Inserted after notifications `ul#notices`.
+- `content` - Inserted at end of `div#pw-content-body`. 
+- `footer` - Inserted at end of `footer#pw-footer`. 
+- `body` - Inserted before `</body>`. 
+---
+
+## Customizing CSS
+
+### Summary
 
 You can easily customize AdminThemeUikit in 3 simple steps:
 
@@ -15,9 +100,7 @@ You can easily customize AdminThemeUikit in 3 simple steps:
 
 Either step 2 or 3 can be optional too, more details below. 
 
----
+### Full instructions
-
-### Long version
 
 Now that you know what to do, let’s run through 3 steps above again, but with more details: 
 

wire/modules/AdminTheme/AdminThemeUikit/_body-scripts.php

@@ -0,0 +1,31 @@
+<?php namespace ProcessWire;
+
+/**
+ * Scripts that are inserted before </body>
+ * 
+ */
+
+if(!defined("PROCESSWIRE")) die();
+
+/** @var string $layout */
+/** @var Process $process */
+/** @var WireInput $input */
+
+?>
+<script>
+	<?php
+	if(strpos($layout, 'sidenav-tree') === 0) {
+		echo "if(typeof parent.isPresent != 'undefined'){";
+		if(strpos("$process", 'ProcessPageList') === 0) {
+			echo "parent.hideTreePane();";
+		} else {
+			echo "if(!parent.isMobileWidth() && parent.treePaneHidden()) parent.showTreePane();";
+		}
+		if($process == 'ProcessPageEdit' && ($input->get('s') || $input->get('new'))) {
+			echo "parent.refreshTreePane(" . ((int) $input->get('id')) . ");";
+		}
+		echo "}";
+	}
+	?>
+	ProcessWireAdminTheme.init();
+</script>

wire/modules/AdminTheme/AdminThemeUikit/_content-body.php

@@ -0,0 +1,19 @@
+<?php namespace ProcessWire;
+
+/**
+ * Primary content head (#main > #content > #pw-content-head)
+ *
+ */
+
+if(!defined("PROCESSWIRE")) die();
+
+/** @var AdminThemeUikit $adminTheme */
+/** @var string $content */
+/** @var Page $page */
+
+?>
+
+<div id='pw-content-body'>
+	<?php echo $page->get('body') . $content; ?>
+</div>	
+	

wire/modules/AdminTheme/AdminThemeUikit/_content-head.php

@@ -0,0 +1,32 @@
+<?php namespace ProcessWire;
+
+/**
+ * Primary content head (#main > #content > #pw-content-head)
+ *
+ */
+
+if(!defined("PROCESSWIRE")) die();
+
+/** @var string $layout */
+/** @var AdminThemeUikit $adminTheme */
+/** @var string $headline */
+/** @var Page $page */
+
+?>
+
+<header id='pw-content-head'>
+			
+	<?php if($layout != 'sidenav' && $layout != 'modal') echo $adminTheme->renderBreadcrumbs(); ?>
+	
+	<div id='pw-content-head-buttons' class='uk-float-right uk-visible@s'>
+		<?php echo $adminTheme->renderAddNewButton(); ?>
+	</div>
+
+	<?php
+	if($headline !== '' && !$adminTheme->isModal) {
+		echo "<h1 id='pw-content-title' class='uk-margin-remove-top'>$headline</h1>";
+	}
+	?>
+			
+</header>	
+		

wire/modules/AdminTheme/AdminThemeUikit/_content.php

@@ -0,0 +1,26 @@
+<?php namespace ProcessWire;
+
+/**
+ * Primary content (#main > #content)
+ * 
+ */
+
+if(!defined("PROCESSWIRE")) die();
+
+/** @var string $layout */
+/** @var AdminThemeUikit $adminTheme */
+/** @var string $content */
+/** @var string $headline */
+/** @var Page $page */
+
+?>
+
+<main id='main' class='pw-container uk-container uk-container-expand uk-margin uk-margin-large-bottom'>
+	<div class='pw-content' id='content'>
+		<?php 
+		$adminTheme->includeFile('_content-head.php', array('layout' => $layout, 'headline' => $headline)); 
+		$adminTheme->includeFile('_content-body.php', array('content' => &$content));
+		?>
+	</div>
+</main>
+

wire/modules/AdminTheme/AdminThemeUikit/_footer.php

@@ -9,7 +9,7 @@ if(!defined("PROCESSWIRE")) die();
 /** @var array $extras */
 
 ?>
-<!-- FOOTER -->
+
 <footer id='pw-footer' class='uk-margin'>
 	<div class='pw-container uk-container uk-container-expand'>
 		<div class='uk-grid' uk-grid>

wire/modules/AdminTheme/AdminThemeUikit/_head.php

@@ -55,4 +55,3 @@ $scripts->append($themeUrl . "scripts/main.js?v=$version");
 	foreach($scripts as $file) {
 		echo "\n\t<script type='text/javascript' src='$file'></script>";
 	}
-	?>

wire/modules/AdminTheme/AdminThemeUikit/_main.php

@@ -7,21 +7,21 @@
  *
  */
 
+if(!defined("PROCESSWIRE")) die();
+
 /** @var Config $config */
 /** @var AdminThemeUikit $adminTheme */
 /** @var User $user */
 /** @var Modules $modules */
 /** @var Notices $notices */
 /** @var Page $page */
-/** @var Process $proc;ess */
+/** @var Process $process */
 /** @var Sanitizer $sanitizer */
 /** @var WireInput $input */
 /** @var Paths $urls */
 /** @var string $layout */
 /** @var Process $process */
 
-if(!defined("PROCESSWIRE")) die();
-
 $adminTheme->renderExtraMarkup('x'); // forces it to cache
 if(!isset($content)) $content = '';
 
@@ -30,7 +30,7 @@ if(!isset($content)) $content = '';
 	/* this intentionally on a separate line */ ?>">
 <head>
 	<?php 
-	include(__DIR__ . '/_head.php');
+	$adminTheme->includeFile('_head.php', array('layout' => $layout));
 	echo $adminTheme->renderExtraMarkup('head'); 
 	?>
 </head>
@@ -38,7 +38,7 @@ if(!isset($content)) $content = '';
 
 	<?php
 	if($layout == 'sidenav') {
-		include(__DIR__ . "/_sidenav-masthead.php");
+		$adminTheme->includeFile('_sidenav-masthead.php');
 		
 	} else if($layout == 'sidenav-tree' || $layout == 'sidenav-tree-alt') {
 		// masthead not rendered in this frame
@@ -50,68 +50,30 @@ if(!isset($content)) $content = '';
 		echo $adminTheme->renderNotices($notices);
 		
 	} else {
-		include(__DIR__ . "/_masthead.php");
+		$adminTheme->includeFile('_masthead.php');
 	}
-	?>
+	
-
+	$headline = $adminTheme->getHeadline();
-	<!-- MAIN CONTENT -->
+	$headlinePos = strpos($content, "$headline</h1>");
-	<main id='main' class='pw-container uk-container uk-container-expand uk-margin uk-margin-large-bottom'>
+	if($headlinePos && $headlinePos > 500) $headline = '';
-		<div class='pw-content' id='content'>
+	
-			
+	$adminTheme->includeFile('_content.php', array(
-			<header id='pw-content-head'>
+		'headline' => $headline, 
-				
+		'content' => &$content, 
-				<?php if($layout != 'sidenav' && $layout != 'modal') echo $adminTheme->renderBreadcrumbs(); ?>
+		'layout' => $layout
-
+	));
-				<div id='pw-content-head-buttons' class='uk-float-right uk-visible@s'>
+	
-					<?php echo $adminTheme->renderAddNewButton(); ?>
-				</div>
-
-				<?php 
-				$headline = $adminTheme->getHeadline();
-				$headlinePos = strpos($content, ">$headline</h1>");
-				if(!$adminTheme->isModal && ($headlinePos === false || $headlinePos < 500)) {
-					echo "<h1 id='pw-content-title' class='uk-margin-remove-top'>$headline</h1>";
-				}
-				?>
-				
-			</header>	
-			
-			<div id='pw-content-body'>
-				<?php
-				echo $page->get('body');
-				echo $content;
-				echo $adminTheme->renderExtraMarkup('content');
-				?>
-			</div>	
-			
-		</div>
-	</main>
-
-	<?php
 	if(!$adminTheme->isModal) {
-		include(__DIR__ . '/_footer.php');
+		$adminTheme->includeFile('_footer.php');
-		if($adminTheme->isLoggedIn && strpos($layout, 'sidenav') !== 0) include(__DIR__ . '/_offcanvas.php');
+		if($adminTheme->isLoggedIn && strpos($layout, 'sidenav') !== 0) {
+			$adminTheme->includeFile('_offcanvas.php');
+		}
 	}
+	
 	echo $adminTheme->renderExtraMarkup('body');
+	$adminTheme->includeFile('_body-scripts.php', array('layout' => $layout));
 	?>
 	
-	<script>
-		<?php	
-		if(strpos($layout, 'sidenav-tree') === 0) {
-			echo "if(typeof parent.isPresent != 'undefined'){";
-			if(strpos($process, 'ProcessPageList') === 0) {
-				echo "parent.hideTreePane();";
-			} else {
-				echo "if(!parent.isMobileWidth() && parent.treePaneHidden()) parent.showTreePane();";
-			}
-			if($process == 'ProcessPageEdit' && ($input->get('s') || $input->get('new'))) {
-				echo "parent.refreshTreePane(" . ((int) $input->get('id')) . ");";
-			}
-			echo "}";
-		}
-		?>
-		ProcessWireAdminTheme.init();
-	</script>
-
 </body>
-</html>
+</html><?php
+

wire/modules/AdminTheme/AdminThemeUikit/_masthead.php

@@ -53,7 +53,7 @@ $logoOptions = array('height' => '40px');
 						</li>
 					</ul>	
 				
-					<?php include(__DIR__ . '/_search-form.php'); ?>
+					<?php $adminTheme->includeFile('_search-form.php'); ?>
 					
 				</div>
 				<?php endif; // loggedin ?>

wire/modules/AdminTheme/AdminThemeUikit/_offcanvas.php

@@ -22,7 +22,7 @@ if(!defined("PROCESSWIRE")) die();
 			</a>
 			<img class='pw-logo' width='200' style='margin-left:-5px' src='<?php echo $adminTheme->url(); ?>uikit-pw/images/logo.png' />
 		</p>	
-		<?php include(__DIR__ . '/_search-form.php'); ?>
+		<?php $adminTheme->includeFile('_search-form.php'); ?>
 		<ul class='pw-sidebar-nav uk-nav uk-nav-parent-icon uk-margin-small-top' data-uk-nav='animation: false; multiple: true;'>
 			<?php echo $adminTheme->renderSidebarNavItems(); ?>
 		</ul>	

wire/modules/AdminTheme/AdminThemeUikit/_search-form.php

@@ -5,24 +5,24 @@ if(!defined("PROCESSWIRE")) die();
 /** @var Paths $urls */
 /** @var AdminThemeUikit $adminTheme */
 
-$searchURL = $urls->admin . 'page/search/live/';
+if($adminTheme->isEditor):
-$helpTerm = $adminTheme->getLabel('search-help'); // Localized term to type for help (3+ chars)
+	$searchURL = $urls->admin . 'page/search/live/';
-$helpNote = $adminTheme->getLabel('search-tip'); 
+	$helpTerm = $adminTheme->getLabel('search-help'); // Localized term to type for help (3+ chars)
-
+	$helpNote = $adminTheme->getLabel('search-tip');
-if($adminTheme->isEditor): ?>
+	?>
-<form class='pw-search-form' data-action='<?php echo $searchURL; ?>' action='<?php echo $searchURL; ?>' method='get'>
+	<form class='pw-search-form' data-action='<?php echo $searchURL; ?>' action='<?php echo $searchURL; ?>' method='get'>
-	<div class='uk-inline'>
+		<div class='uk-inline'>
-		<span class='uk-form-icon'>
+			<span class='uk-form-icon'>
-			<span class='pw-search-icon'>
+				<span class='pw-search-icon'>
-				<?php echo $adminTheme->renderIcon('search'); ?>
+					<?php echo $adminTheme->renderIcon('search'); ?>
+				</span>
+				<span class='pw-spinner-icon uk-hidden'>
+					<?php echo $adminTheme->renderIcon('spinner fa-spin'); ?>
+				</span>	
 			</span>
-			<span class='pw-spinner-icon uk-hidden'>
+			<input type='text' class='pw-search-input uk-input uk-form-width-medium' name='q' data-help-term='<?php echo $helpTerm;?>' data-help-note='<?php echo $helpNote;?>'>
-				<?php echo $adminTheme->renderIcon('spinner fa-spin'); ?>
+		</div>
-			</span>	
+		<input class='uk-hidden' type='submit' name='search' value='Search' />
-		</span>
+		<input type='hidden' name='show_options' value='1' />
-		<input type='text' class='pw-search-input uk-input uk-form-width-medium' name='q' data-help-term='<?php echo $helpTerm;?>' data-help-note='<?php echo $helpNote;?>'>
+	</form>
-	</div>
-	<input class='uk-hidden' type='submit' name='search' value='Search' />
-	<input type='hidden' name='show_options' value='1' />
-</form>
 <?php endif; ?>

wire/modules/AdminTheme/AdminThemeUikit/_sidenav/_sidenav-init.php

@@ -8,6 +8,7 @@ if(!defined("PROCESSWIRE")) die();
 /** @var WireInput $input */
 /** @var Sanitizer $sanitizer */
 /** @var Page $page */
+/** @var string $layout */
 
 // whether or not page tree should be used for left sidebar 
 $treePaneLeft = $adminTheme->layout == 'sidenav-tree';
@@ -52,7 +53,7 @@ $panes = array(
 	
 	<link rel="stylesheet" href="<?php echo $themeURL; ?>layout/source/stable/layout-default.css">
 	
-	<?php require(__DIR__ . '/_head.php'); ?>
+	<?php $adminTheme->includeFile('_head.php', array('layout' => $layout)); ?>
 	
 	<style type='text/css'>
 		html, body {
@@ -85,7 +86,7 @@ $panes = array(
 	<?php
 	if($treePane) {
 		echo "<div id='pw-admin-head'>";
-		include(__DIR__ . '/_masthead.php');
+		$adminTheme->includeFile('_masthead.php'); 
 		echo "</div>";
 	}
 	?>
@@ -94,7 +95,9 @@ $panes = array(
 		<?php
 		echo $panes['main'];
 		echo $treePane ? $panes['tree'] : $panes['side'] . $panes['tree'];
-		if($adminTheme->isLoggedIn) include(__DIR__ . '/_offcanvas.php');
+		if($adminTheme->isLoggedIn) {
+			$adminTheme->includeFile('_offcanvas.php'); 
+		}
 		?>
 	</div>	
     

wire/modules/AdminTheme/AdminThemeUikit/_sidenav/_sidenav-masthead.php

@@ -69,7 +69,7 @@ $breadcrumbs = $adminTheme->renderBreadcrumbs();
 					</li>
 				</ul>
 
-				<?php include(__DIR__ . '/_search-form.php'); ?>
+				<?php $adminTheme->includeFile('_search-form.php'); ?> 
 				
 			</div>
 			<?php endif; // loggedin ?>

wire/modules/AdminTheme/AdminThemeUikit/_sidenav/_sidenav-side.php

@@ -24,7 +24,7 @@ if(!defined("PROCESSWIRE")) die();
 <html class="pw pw-sidebar-frame" lang="<?php echo $adminTheme->_('en');
 	/* this intentionally on a separate line */ ?>">
 <head>
-	<?php include(__DIR__ . '/_head.php'); ?>
+	<?php $adminTheme->includeFile('_head.php'); ?>
 	<style type='text/css'>
 		#pw-sidenav-bar .pw-search-form .uk-inline, 
 		#pw-sidenav-bar .pw-search-input {

wire/modules/AdminTheme/AdminThemeUikit/_sidenav/_sidenav-tree.php

@@ -8,6 +8,7 @@
 /** @var Config $config */
 /** @var AdminThemeUikit $adminTheme */
 /** @var User $user */
+/** @var string $layout */
 
 if(!defined("PROCESSWIRE")) die();
 
@@ -17,7 +18,7 @@ if(!isset($content)) $content = '';
 <html class="pw pw-sidebar-frame" lang="<?php echo $adminTheme->_('en');
 	/* this intentionally on a separate line */ ?>">
 <head>
-	<?php include(__DIR__ . '/_head.php'); ?>
+	<?php $adminTheme->includeFile('_head.php', array('layout' => $layout)); ?>
 	<script>
 		var pageListRefresh = {
 			refreshPage: function(id) {

wire/modules/AdminTheme/AdminThemeUikit/_sidenav/default.php

@@ -0,0 +1,38 @@
+<?php namespace ProcessWire;
+/**
+ * default.php: Main control file for AdminThemeUikit
+ *
+ * FileCompiler=0
+ *
+ */
+
+/** @var Config $config */
+/** @var AdminThemeUikit $adminTheme */
+/** @var User $user */
+/** @var Modules $modules */
+/** @var Notices $notices */
+/** @var Page $page */
+/** @var Process $process */
+/** @var Sanitizer $sanitizer */
+/** @var WireInput $input */
+/** @var Paths $urls */
+/** @var string $content */
+/** @var string $layout */
+
+if(!defined("PROCESSWIRE")) die();
+
+if($layout === 'sidenav-init' || $layout === 'sidenav-tree-init') {
+	// sidenav main loader
+	include(__DIR__ . '/_sidenav-init.php');
+
+} else if($layout === 'sidenav-side') {
+	// sidenav sidebar pane
+	$adminTheme->addBodyClass("pw-layout-sidenav-side");
+	include(__DIR__ . '/_sidenav-side.php'); 
+
+} else if($layout === 'sidenav-tree') {
+	// sidenav tree pane
+	$adminTheme->addBodyClass("pw-layout-sidenav-tree");
+	include(__DIR__ . '/_sidenav-tree.php'); 
+}
+	

wire/modules/AdminTheme/AdminThemeUikit/default.php

@@ -7,6 +7,8 @@
  * 
  */
 
+if(!defined("PROCESSWIRE")) die();
+
 /** @var Config $config */
 /** @var AdminThemeUikit $adminTheme */
 /** @var User $user */
@@ -17,8 +19,7 @@
 /** @var Sanitizer $sanitizer */
 /** @var WireInput $input */
 /** @var Paths $urls */
-
+/** @var string $content */
-if(!defined("PROCESSWIRE")) die();
 
 if($adminTheme->isModal) {
 	$layout = 'modal';
@@ -28,28 +29,19 @@ if($adminTheme->isModal) {
 	$layout = '';
 }
 
-if($layout === 'sidenav-init' || $layout === 'sidenav-tree-init') {
+$content .= $adminTheme->renderExtraMarkup('content');
-	// sidenav main loader
+$vars = array('layout' => $layout, 'content' => &$content);
-	include(__DIR__ . "/_sidenav-init.php");
-	
-} else if($layout === 'sidenav-side') {
-	// sidenav sidebar pane
-	$adminTheme->addBodyClass("pw-layout-sidenav-side");
-	include(__DIR__ . "/_sidenav-side.php");
 
-} else if($layout === 'sidenav-tree') {
+if(strpos($layout, 'sidenav') === 0 && $layout != 'sidenav-main') {
-	// sidenav tree pane
+	include(__DIR__ . '/_sidenav/default.php');
-	$adminTheme->addBodyClass("pw-layout-sidenav-tree");
-	include(__DIR__ . "/_sidenav-tree.php");
-	
 } else {
 	// main markup file
 	if($user->isLoggedin() && $adminTheme->layout && !$adminTheme->isModal) {
-		$layout = $adminTheme->layout;
+		$vars['layout'] = $adminTheme->layout;
-		$adminTheme->addBodyClass("pw-layout-$layout");
+		$adminTheme->addBodyClass("pw-layout-$vars[layout]");
 	} else if($layout != 'modal') {
-		$layout = '';
+		$vars['layout'] = '';
 	}
-	include(__DIR__ . "/_main.php");
+	$adminTheme->includeFile('_main.php', $vars); 
 }