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109 lines
2.9 KiB
Markdown
109 lines
2.9 KiB
Markdown
# SVG Sprite for a Site Without a Bundler
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Combine SVG icons into one file and use them on an HTML page.
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## Generate the sprite
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You do not need to install the package in your project.
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This guide uses the following project structure:
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```text
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/
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├── index.html
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└── assets/
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├── app-icons/
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└── svg-icons/
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├── check.svg
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└── warning.svg
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```
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### 1. Create the sprite config
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Choose a folder for the sprite. This example uses `assets/app-icons`. Create `svg-sprite.config.json` inside it:
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```json
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{
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"mode": "standalone",
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"name": "icons"
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}
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```
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### 2. Set the icon source
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`input` can point to a folder, an individual SVG file, or a glob pattern. To use multiple sources, provide an array with any combination of these values:
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```json
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{
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"mode": "standalone",
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"name": "icons",
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"input": "../svg-icons/**/*.svg"
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}
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```
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### 3. Generate the sprite
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Pass the config path to the command:
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```bash
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npx --yes @gromlab/svg-sprites assets/app-icons/svg-sprite.config.json
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```
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The package collects the icons in a `.svg-sprite` directory next to the config:
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```text
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assets/app-icons/.svg-sprite/
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├── sprite.svg
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└── svg-sprite.manifest.json
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```
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- `sprite.svg` is the finished sprite for use on the site.
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- `svg-sprite.manifest.json` contains icon data for Viewer.
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The `.svg-sprite` directory is created automatically and fully replaced on every generation. Do not edit its contents manually.
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### 4. Use an icon
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In `index.html`, point to the generated `sprite.svg`. After `#`, add the icon file name without the `.svg` extension:
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```html
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<svg
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width="24"
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height="24"
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aria-label="Done"
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>
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<use href="./assets/app-icons/.svg-sprite/sprite.svg#check"></use>
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</svg>
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```
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The icon from `check.svg` is available as `#check`.
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## Debug and preview
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`sprite.svg` is a technical file, not an icon gallery. Opening it does not provide a convenient view of the whole set. Gradients, masks, filters, and references to internal `id` values may also render with artifacts.
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Use the official Viewer for visual checks. It displays every icon in the sprite and helps you verify its colors and rendering.
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Viewer is optional and intended only for development. You do not need to install the package through npm.
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Viewer works directly with files from `.svg-sprite`. Nothing needs to be copied.
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### Add Viewer to the page
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Add a module script to `index.html` and provide paths to the generated manifest and sprite:
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```html
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<script
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type="module"
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src="https://cdn.jsdelivr.net/npm/@gromlab/svg-sprites/dist/viewer-element.js"
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></script>
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<gromlab-sprite-viewer
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viewer-title="Project icons"
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manifest-url="./assets/app-icons/.svg-sprite/svg-sprite.manifest.json"
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sprite-url="./assets/app-icons/.svg-sprite/sprite.svg"
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></gromlab-sprite-viewer>
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```
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You can move Viewer to a separate HTML file in the site root used only for development and icon checks.
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