Taurus Hyva SVG Sprite

Taurus HyvaSvgSprite

The Taurus_HyvaSvgSprite module optimizes SVG rendering in Hyva themes by automatically converting individual SVG icons into a single SVG sprite.

Overview

In standard Hyva themes, icons are rendered as individual <svg> elements directly in the HTML. While efficient, this can lead to a larger DOM size if many icons are used or if the same icon is repeated multiple times.

This module intercepts the Hyva\Theme\ViewModel\SvgIcons::renderHtml method. Instead of returning the full SVG content, it:

1. Adds the icon to a centralized SvgSprite ViewModel.
2. Returns a light <svg><use href="#icon-id" /></svg> tag.
3. Renders all collected icons as <symbol> elements within a hidden <svg> sprite at the bottom of the page (before the </body> tag).

Cached blocks

Blocks loaded from the block_html cache (e.g. Hyva product list items, catalog product widgets) never call renderHtml, so their icons can't register themselves in the sprite. To cover this:

• every symbol added to the sprite is also stored in a persistent registry (HYVA_SVG_SPRITE_REGISTRY, kept in the block_html cache type, so it is flushed together with the cached blocks);
• the view_block_abstract_to_html_after observer (Observer\CollectCachedIcons) scans each block's output (cache hits included) for <use href="#icon-..."> and adds the missing symbols from the registry.

Only blocks rendered before the sprite block (before.body.end) are covered.

Features

• Performance Optimization: Reduces the overall size of the HTML document by reusing SVG definitions.
• Automatic Integration: No changes needed to existing templates. It automatically plugins into Hyva's standard icon rendering logic.
• Zero Configuration: Works out of the box once enabled.

Installation

Via Composer

1. Install the module:

   composer require taurus-media/module-hyva-svg-sprite
   

2. Run the following Magento commands:

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

Manual Installation

1. Copy the module files to app/code/Taurus/HyvaSvgSprite.
2. Run the following Magento commands:

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