README

A Magento 2 module that provides asset rendering functionality for scripts, stylesheets, and asset path resolution.

Features

• Asset Rendering: Render JavaScript and CSS assets with multiple loading strategies
• Inline & External: Support for both inline and external asset rendering
• Loading Strategies: Sync, async, and defer loading for scripts
• Preloading: Resource preload hints with fetch priority support
• Content Strategies: Multiple fallback strategies for asset content retrieval
• Caching: Built-in asset caching for improved performance

Installation

Via Composer

composer require hryvinskyi/magento2-theme-assets

Manual Installation

1. Create the directory app/code/Hryvinskyi/ThemeAssets
2. Copy the module files to the directory
3. Run the following commands:

bin/magento module:enable Hryvinskyi_ThemeAssets
bin/magento setup:upgrade
bin/magento cache:flush

Requirements

• PHP ^8.1
• Magento 2.4.x
• hryvinskyi/magento2-head-tag-manager

Usage

In PHTML Templates

<?php
use Hryvinskyi\ThemeAssets\Api\AssetRendererInterface;

/** @var \Hryvinskyi\Base\Model\ViewModelRegistry $viewModels */
$assetRenderer = $viewModels->require(AssetRendererInterface::class);

// Render inline script
echo $assetRenderer->renderScript('Module_Name::js/script.js');

// Render external script with async loading
echo $assetRenderer->renderScript(
    'Module_Name::js/script.js',
    AssetRendererInterface::RENDER_EXTERNAL,
    AssetRendererInterface::LOAD_ASYNC
);

// Render external script with defer and preload
echo $assetRenderer->renderScript(
    'Module_Name::js/script.js',
    AssetRendererInterface::RENDER_EXTERNAL,
    AssetRendererInterface::LOAD_DEFER,
    AssetRendererInterface::PRELOAD_ENABLED,
    [],
    ['priority' => AssetRendererInterface::PRIORITY_HIGH]
);

// Render inline stylesheet
echo $assetRenderer->renderStyle('Module_Name::css/styles.css');

// Render external stylesheet with preload
echo $assetRenderer->renderStyle(
    'Module_Name::css/styles.css',
    AssetRendererInterface::RENDER_EXTERNAL,
    AssetRendererInterface::PRELOAD_ENABLED
);

// Get raw file content
$content = $assetRenderer->getContent('Module_Name::js/config.json');

Constants

Render Types

• AssetRendererInterface::RENDER_INLINE - Inline the asset content
• AssetRendererInterface::RENDER_EXTERNAL - Link to external file

Load Strategies (for scripts)

• AssetRendererInterface::LOAD_SYNC - Synchronous loading (blocking)
• AssetRendererInterface::LOAD_ASYNC - Asynchronous loading
• AssetRendererInterface::LOAD_DEFER - Deferred loading

Preload Options

• AssetRendererInterface::PRELOAD_ENABLED - Enable resource preloading
• AssetRendererInterface::PRELOAD_DISABLED - Disable resource preloading

Fetch Priority

• AssetRendererInterface::PRIORITY_HIGH - High fetch priority
• AssetRendererInterface::PRIORITY_LOW - Low fetch priority
• AssetRendererInterface::PRIORITY_AUTO - Browser default priority

Options Array

The $options parameter supports:

[
    'priority' => AssetRendererInterface::PRIORITY_HIGH, // Fetch priority for preload
    'attributes' => [                                     // Additional HTML attributes
        'data-custom' => 'value',
        'id' => 'my-script'
    ],
    'content_before' => '/* prefix */',                  // Content to prepend (inline only)
    'content_after' => '/* suffix */'                    // Content to append (inline only)
]

Asset Content Strategies

The module uses a strategy pattern for retrieving asset content with multiple fallbacks:

1. MagentoAssetSystemStrategy - Uses Magento's built-in asset system
2. DirectStaticFileStrategy - Direct access to static file directory
3. FilesystemServiceStrategy - Filesystem service with absolute path

Strategies are tried in order until content is successfully retrieved.

Logging

Asset retrieval failures are logged to var/log/asset_renderer.log.

API Reference

AssetRendererInterface

AssetPathResolverInterface

License

MIT License

Author

Volodymyr Hryvinskyi volodymyr@hryvinskyi.com

GitHub: https://github.com/hryvinskyi