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152 lines
4.8 KiB
Markdown
152 lines
4.8 KiB
Markdown
# Routes transitions with Nuxt.js
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> Nuxt.js uses the [`<transition>`](http://vuejs.org/v2/guide/transitions.html#Transitioning-Single-Elements-Components) component to let you create amazing transitions/animations between your routes.
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## Usage
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🎬 [Demonstration video](https://www.youtube.com/watch?v=RIXOzJWFfc8)
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**Nuxt.js default transition name is `page`.**
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To add a fade transition to every page of your application, we need a CSS file that is shared across all our routes, so we start by creating a file in the `assets/` folder.
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`assets/main.css`:
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```css
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.page-enter-active, .page-leave-active {
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transition: opacity .5s
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}
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.page-enter, .page-leave-active {
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opacity: 0
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}
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```
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We add its path in our `nuxt.config.js` file:
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```js
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module.exports = {
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css: [
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'assets/main.css'
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]
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}
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```
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And voilà! A nice fade animation will be shown between every routes.
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## The `transition` key
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You can update the defaults transition settings by adding the `transition` key in you `nuxt.config.js` file.
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```js
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module.exports = {
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transition: 'test'
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// or
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transition: {
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name: 'test',
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mode: 'out-in'
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}
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}
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```
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Nuxt.js will use these settings to set the component as follows:
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```html
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<transition name="test" mode="out-in">
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```
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To learn more about the Vue.js `<transition>` component: http://vuejs.org/v2/guide/transitions.html
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The following properties that the `transition` key can have:
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| key | Type | Default | definition |
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|------|------|---------|-----------|
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| `name` | String | `"page"` | The transition name applied on all the routes transitions. |
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| `mode` | String | `"out-in"` | The transition mode applied on all routes, see [Vue.js documentation](http://vuejs.org/v2/guide/transitions.html#Transition-Modes). |
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| `css` | Boolean | `true` | Whether to apply CSS transition classes. Defaults to true. If set to false, will only trigger JavaScript hooks registered via component events. |
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| `type` | String | `n/a` | Specify the type of transition events to wait for to determine transition end timing. Available values are "transition" and "animation". By default, it will automatically detect the type that has a longer duration. |
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| `enterClass` | String | `n/a` | See [Vue.js documentation](https://vuejs.org/v2/guide/transitions.html#Custom-Transition-Classes) |
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| `enterActiveClass` | String | `n/a` | See [Vue.js documentation](https://vuejs.org/v2/guide/transitions.html#Custom-Transition-Classes) |
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| `leaveClass` | String | `n/a` | See [Vue.js documentation](https://vuejs.org/v2/guide/transitions.html#Custom-Transition-Classes) |
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| `leaveActiveClass` | String | `n/a` | See [Vue.js documentation](https://vuejs.org/v2/guide/transitions.html#Custom-Transition-Classes) |
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*Note: if the `transition` key is set as a string, it will be used as the `transition.name`.*
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You can also define methods in the `transition`, these are for the [JavaScript hooks](https://vuejs.org/v2/guide/transitions.html#JavaScript-Hooks):
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- `beforeEnter: function (el) { ... }`
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- `enter: function (el, done) { ... }`
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- `afterEnter: function (el) { ... }`
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- `enterCancelled: function (el) { ... }`
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- `beforeLeave: function (el) { ... }`
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- `leave: function (el, done) { ... }`
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- `afterLeave: function (el) { ... }`
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- `leaveCancelled: function (el) { ... }`
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*Note: it’s also a good idea to explicitly add `css: false` for JavaScript-only transitions so that Vue can skip the CSS detection. This also prevents CSS rules from accidentally interfering with the transition.*
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## Custom transition on a specific route
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To define a custom transition for a specific route, simply add the `transition` key to the page component:
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`pages/about.vue`:
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```html
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<template>
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<div class="container">
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<h1>About page</h1>
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<nuxt-link to="/">Home page</nuxt-link>
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</div>
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</template>
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<script>
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export default {
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transition: 'bounce'
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}
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</script>
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```
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And then we add the CSS animation for this custom transition:
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```css
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/* assets/main.css */
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.bounce-enter-active {
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animation: bounce-in .8s;
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}
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.bounce-leave-active {
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animation: bounce-out .5s;
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}
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@keyframes bounce-in {
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0% { transform: scale(0) }
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50% { transform: scale(1.5) }
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100% { transform: scale(1) }
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}
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@keyframes bounce-out {
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0% { transform: scale(1) }
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50% { transform: scale(1.5) }
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100% { transform: scale(0) }
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}
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```
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*Note: you can also the set `transition` key as an object in page components*
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## Dynamic transition
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To create a dynamic transition between two route depending on the route parameters, set the `transition` key as a `function`.
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Example:
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`pages/posts.vue`
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```html
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<script>
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export default {
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transition (to, from) {
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if (!from) return 'slide-left'
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return +to.query.page < +from.query.page ? 'slide-right' : 'slide-left'
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}
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}
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</script>
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```
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## Demo
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```bash
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npm install
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npm run dev
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```
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Go to [http://localhost:3000](http://localhost:3000) and navigate through the pages.
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