mirror of
https://github.com/jakejarvis/dark-mode.git
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94 lines
2.8 KiB
Markdown
94 lines
2.8 KiB
Markdown
# 🌓 Dark Mode Switcheroo™
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[](https://github.com/jakejarvis/dark-mode.js/actions/workflows/ci.yml)
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[](https://www.npmjs.com/package/@jakejarvis/dark-mode)
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[](LICENSE)
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Very simple CSS dark/light mode toggler with saved preference via local storage & dynamic OS setting detection. Zero dependencies and only ~600 bytes gzipped!
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- [View the example.](https://jakejarvis.github.io/dark-mode-example/)
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- [Read the blog post.](https://jarv.is/notes/dark-mode/)
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- [See it in action.](https://jarv.is/)
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## Usage
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### Options
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`darkMode.init([...options])`
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- **toggle:** The clickable HTML element used to toggle between the two themes. (optional, default: `null`)
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- **classes:** An object containing the `<body>` class names for the light and dark themes. (optional, default: `{ light: "light", dark: "dark" }`)
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- **default:** The initial `<body>` class hard-coded into the HTML template. (optional, default: `"light"`)
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- **storageKey:** Name of the `localStorage` key holding the user's preference. (optional, default: `"dark_mode_pref"`)
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- **onInit(toggle?)** Callback function executed at the end of initialization. The toggle above is passed in if set. (optional, default: `null`)
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- **onChange(theme?, toggle?)** Callback function executed when theme is switched. The new theme and the toggle above (if set) are passed in. (optional, default: `null`)
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### Browser
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```html
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<button class="dark-mode-toggle">💡 Click to see the light... or not.</button>
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<script src="https://unpkg.com/@jakejarvis/dark-mode/dist/dark-mode.min.js"></script>
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<script>
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window.darkMode.init({
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toggle: document.querySelector(".dark-mode-toggle"),
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classes: {
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light: "light",
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dark: "dark",
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},
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default: "light",
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storageKey: "dark_mode_pref",
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});
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</script>
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```
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### Node
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```bash
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npm install @jakejarvis/dark-mode
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# or...
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yarn add @jakejarvis/dark-mode
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```
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#### Module via `import`
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```js
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import { init } from "@jakejarvis/dark-mode";
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init({
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toggle: document.querySelector(".dark-mode-toggle"),
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classes: {
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light: "light",
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dark: "dark",
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},
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default: "light",
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storageKey: "dark_mode_pref",
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});
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```
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#### CommonJS via `require()`
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```js
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const darkMode = require("@jakejarvis/dark-mode");
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darkMode.init({
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toggle: document.querySelector(".dark-mode-toggle"),
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classes: {
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light: "light",
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dark: "dark",
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},
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default: "light",
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storageKey: "dark_mode_pref",
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});
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```
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## To-Do
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- [ ] Support more than two themes
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- [ ] Better readme docs
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- [x] Add callback function `onChange` (or `onToggle` etc.) passed in as an option
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## License
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MIT
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