Create a CollectingAssets hook.

Page module hooking into CollectingAssets to add iCheck

Modules/Core/Composers/AssetsViewComposer.php

@@ -4,6 +4,7 @@ namespace Modules\Core\Composers;
 
 use Illuminate\Contracts\View\View;
 use Illuminate\Http\Request;
+use Modules\Core\Events\CollectingAssets;
 use Modules\Core\Events\EditorIsRendering;
 use Modules\Core\Foundation\Asset\Manager\AssetManager;
 use Modules\Core\Foundation\Asset\Pipeline\AssetPipeline;
@@ -50,6 +51,7 @@ class AssetsViewComposer
         $this->assetPipeline->requireJs(config('asgard.core.core.admin-required-assets.js'));
 
         event($editor = new EditorIsRendering($this->assetPipeline));
+        event(new CollectingAssets($this->assetPipeline));
 
         $view->with('cssFiles', $this->assetPipeline->allCss());
         $view->with('jsFiles', $this->assetPipeline->allJs());

Modules/Core/Events/CollectingAssets.php

+<?php
+
+namespace Modules\Core\Events;
+
+use Modules\Core\Foundation\Asset\Pipeline\AssetPipeline;
+
+class CollectingAssets
+{
+    /**
+     * @var AssetPipeline
+     */
+    private $assetPipeline;
+
+    public function __construct(AssetPipeline $assetPipeline)
+    {
+        $this->assetPipeline = $assetPipeline;
+    }
+
+    /**
+     * @param string $asset
+     * @return AssetPipeline
+     */
+    public function requireJs($asset)
+    {
+        return $this->assetPipeline->requireJs($asset);
+    }
+
+    /**
+     * @param string $asset
+     * @return AssetPipeline
+     */
+    public function requireCss($asset)
+    {
+        return $this->assetPipeline->requireCss($asset);
+    }
+
+    /**
+     * Match a single route
+     * @param string|array $route
+     * @return bool
+     */
+    public function onRoute($route)
+    {
+        $request = request();
+
+        return str_is($route, $request->route()->getName());
+    }
+
+    /**
+     * Match multiple routes
+     * @param array $routes
+     * @return bool
+     */
+    public function onRoutes(array $routes)
+    {
+        $request = request();
+
+        foreach ($routes as $route) {
+            if (str_is($route, $request->route()->getName()) === true) {
+                return true;
+            }
+        }
+        return false;
+    }
+}

Modules/Page/Providers/PageServiceProvider.php

@@ -4,6 +4,7 @@ namespace Modules\Page\Providers;
 
 use Illuminate\Support\Facades\Config;
 use Illuminate\Support\ServiceProvider;
+use Modules\Core\Events\CollectingAssets;
 use Modules\Core\Traits\CanPublishConfiguration;
 use Modules\Page\Entities\Page;
 use Modules\Page\Repositories\Cache\CachePageDecorator;
@@ -38,6 +39,8 @@ class PageServiceProvider extends ServiceProvider
 
         $this->app[TagManager::class]->registerNamespace(new Page());
         $this->loadMigrationsFrom(__DIR__ . '/../Database/Migrations');
+
+        $this->handleAssets();
     }
 
     /**
@@ -69,4 +72,17 @@ class PageServiceProvider extends ServiceProvider
             }
         );
     }
+
+    /**
+     * Require iCheck on edit and create pages
+     */
+    private function handleAssets()
+    {
+        $this->app['events']->listen(CollectingAssets::class, function (CollectingAssets $event) {
+            if ($event->onRoutes(['*page*create', '*page*edit'])) {
+                $event->requireCss('icheck.blue.css');
+                $event->requireJs('icheck.js');
+            }
+        });
+    }
 }