by @patarapolw * allow manual init and destroy for use with Nuxt * fix onDestroy-related methods * avoid global scope, and use function scope instead * add createInstance function to window.REMARK42 * 1. allow DOMNode to be put in remark_config 2. check remark_config before try to attach node * move createInstance function outside * update embed.ts * avoid ?. * 📚 Docs: doc on how to make it work with SPAs * 📚 Docs: fix spa.md to be more flexible * ✨ Feat: add REMARK42::ready event * remove nuxt-specific terminologies * tell MutationObserver to disconnect on destroy * update docs/spa.md
69 lines
1.7 KiB
Markdown
69 lines
1.7 KiB
Markdown
## How to configure remark42 for Single Page Apps (SPA)
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Originally tested on [Nuxt.js](https://nuxtjs.org/), but it should be applicable to all SPAs.
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- Add the following JavaScript to your `index.html`, which in this case, it is identical to `<script defer src="$HOST/web/embed.js"></script>`
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```js
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;(function () {
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var host = // Your remark42 host
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var components = ['embed'] // Your choice of remark42 components
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;(function(c) {
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for (let i = 0; i < c.length; i++) {
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const d = document
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const s = d.createElement('script')
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s.src = remark_config.host + '/web/' + c[i] + '.js'
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s.defer = true
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;(d.head || d.body).appendChild(s)
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}
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})(components)
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})
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```
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- Created `remark42Instance` when the `div` containing remark42 has appear, usually at `mounted` or `componentDidMount` of the SPA lifecycle. Destroy the previous instance first, if neccessary.
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```ts
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initRemark42() {
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if (window.REMARK42) {
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if (this.remark42Instance) {
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this.remark42Instance.destroy()
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}
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this.remark42Instance = window.REMARK42.createInstance({
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node: this.$refs.remark42 as HTMLElement,
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...remark42_config // See <https://github.com/patarapolw/remark42#setup-on-your-website>
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})
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}
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}
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mounted() {
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if (window.REMARK42) {
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this.initRemark42()
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} else {
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window.addEventListener('REMARK42::ready', () => {
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this.initRemark42()
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})
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}
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}
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```
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- Ensure that this is called every time route changes
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```ts
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@Watch('$route.path')
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onRouteChange() {
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this.initRemark42()
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}
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```
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- And, destroyed before routeLeave
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```ts
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beforeRouteLeave() {
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if (this.remark42Instance) {
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this.remark42Instance.destroy()
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}
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}
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```
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