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svelte-carousel/src/docs/Carousel.svx
2021-08-16 16:33:08 +03:00

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<script>
import _ from 'lodash'
import Carousel from '../components/Carousel/Carousel.svelte'
import Color from './components/Color.svelte'
import AlbumsPreview from './components/AlbumsPreview/AlbumsPreview.svelte'
import Divider from './components/Divider.svelte'
import CustomDot from './components/CustomDot.svelte'
import images from './data/images.json'
import colors from './data/colors.json'
</script>
# Features!anchorId:features;
## Single item!anchorId:features-single-item;
<Carousel>
{#each colors as { color, text } (color)}
<Color {color} {text} />
{/each}
</Carousel>
```jsx
<Carousel>
{#each colors as { color, text } (color)}
<Color {color} {text} />
{/each}
</Carousel>
```
<Divider />
## Multiple items!anchorId:features-multiple-items;
<Carousel>
{#each _.chunk(colors, 3) as colorsChunk, chunkIndex (chunkIndex)}
<div style="display: flex;">
{#each colorsChunk as { color, text } (color)}
<Color {color} {text} />
{/each}
</div>
{/each}
</Carousel>
```jsx
<Carousel>
{#each _.chunk(colors, 3) as colorsChunk, chunkIndex (chunkIndex)}
<div style="display: flex;">
{#each colorsChunk as { color, text } (color)}
<Color {color} {text} />
{/each}
</div>
{/each}
</Carousel>
```
<Divider />
## Autoplay!anchorId:features-autoplay;
<Carousel
autoplay
autoplayDuration={2000}
>
{#each colors as { color, text } (color)}
<Color {color} {text} />
{/each}
</Carousel>
```jsx
<Carousel
autoplay
autoplayDuration={2000}
>
{#each colors as { color, text } (color)}
<Color {color} {text} />
{/each}
</Carousel>
```
<Divider />
## Autoplay with duration progress!anchorId:features-autoplay-duration-progress;
<Carousel
autoplay
autoplayDuration={5000}
autoplayProgressVisible
>
{#each colors as { color, text } (color)}
<Color {color} {text} />
{/each}
</Carousel>
```jsx
<Carousel
autoplay
autoplayDuration={5000}
autoplayProgressVisible
>
{#each colors as { color, text } (color)}
<Color {color} {text} />
{/each}
</Carousel>
```
<Divider />
## Autoplay with pause on focus!anchorId:features-autoplay-pause-on-focus;
**For touchable devices** - tap the carousel to toggle the autoplay.
**For non-touchable devices** - hover over the carousel to pause the autoplay.
<Carousel
autoplay
autoplayDuration={5000}
autoplayProgressVisible
pauseOnFocus
>
{#each colors as { color, text } (color)}
<Color {color} {text} />
{/each}
</Carousel>
```jsx
<Carousel
autoplay
autoplayDuration={5000}
autoplayProgressVisible
pauseOnFocus
>
{#each colors as { color, text } (color)}
<Color {color} {text} />
{/each}
</Carousel>
```
<Divider />
## Lazy loading of images!anchorId:features-lazy-loading;
<Carousel
let:loaded
>
{#each images as src, imageIndex (src)}
<div class="img-container">
{#if loaded.includes(imageIndex)}
<img {src} alt="nature" />
{/if}
</div>
{/each}
</Carousel>
```jsx
<Carousel
let:loaded
>
{#each images as src, imageIndex (src)}
<div class="img-container">
{#if loaded.includes(imageIndex)}
<img {src} alt="nature" />
{/if}
</div>
{/each}
</Carousel>
```
<Divider />
## Arrows customization!anchorId:features-arrows-customization;
<Carousel
let:showPrevPage
let:showNextPage
>
<div slot="prev" on:click={showPrevPage} class="custom-arrow custom-arrow-prev">
<i />
</div>
{#each colors as { color, text } (color)}
<Color {color} {text} />
{/each}
<div slot="next" on:click={showNextPage} class="custom-arrow custom-arrow-next">
<i />
</div>
</Carousel>
```jsx
<Carousel
let:showPrevPage
let:showNextPage
>
<div slot="prev" on:click={showPrevPage} class="custom-arrow custom-arrow-prev">
<i />
</div>
{#each colors as { color, text } (color)}
<Color {color} {text} />
{/each}
<div slot="next" on:click={showNextPage} class="custom-arrow custom-arrow-next">
<i />
</div>
</Carousel>
```
<Divider />
## Dots customization!anchorId:features-dots-customization;
<Carousel
let:currentPageIndex
let:pagesCount
let:showPage
>
<div slot="dots" class="custom-dots">
{#each Array(pagesCount) as _, pageIndex (pageIndex)}
<CustomDot
symbol={pageIndex + 1}
active={currentPageIndex === pageIndex}
on:click={() => showPage(pageIndex)}
></CustomDot>
{/each}
</div>
{#each colors as { color, text } (color)}
<Color {color} {text} />
{/each}
</Carousel>
```jsx
<Carousel
let:currentPageIndex
let:pagesCount
let:showPage
>
<div slot="dots" class="custom-dots">
{#each Array(pagesCount) as _, pageIndex (pageIndex)}
<CustomDot
symbol={pageIndex + 1}
active={currentPageIndex === pageIndex}
on:click={() => showPage(pageIndex)}
></CustomDot>
{/each}
</div>
{#each colors as { color, text } (color)}
<Color {color} {text} />
{/each}
</Carousel>
```
<Divider />
## Use cases!anchorId:features-use-cases;
<AlbumsPreview />
<Divider />
# Installation!anchorId:installation;
```bash
yarn add svelte-carousel
```
```bash
npm install svelte-carousel
```
Import component:
```jsx
<script>
import Carousel from 'svelte-carousel'
// ...
</script>
```
<Divider />
# Props!anchorId:props;
| Prop | Type | Default | Description |
|---------------------------|------------|-----------------|-----------------------------------------------|
| `arrows` | `boolean` | `true` | Enables next/prev arrows |
| `infinite` | `boolean` | `true` | Infinite looping |
| `initialPageIndex` | `number` | `0` | Page to start on |
| `duration` | `number` | `500` | Transition duration (ms) |
| `autoplay` | `boolean` | `false` | Enables auto play of pages |
| `autoplayDuration` | `number` | `3000` | Autoplay change interval (ms) |
| `autoplayDirection` | `string` | `'next'` | Autoplay change direction (`next` or `prev`) |
| `pauseOnFocus` | `boolean` | `false` | Pauses autoplay on focus (for touchable devices - tap the carousel to toggle the autoplay, for non-touchable devices - hover over the carousel to pause the autoplay) |
| `autoplayProgressVisible` | `boolean` | `false` | Shows autoplay duration progress indicator |
| `dots` | `boolean` | `true` | Current page indicator dots |
| `timingFunction` | `string` | `'ease-in-out'` | CSS animation timing function |
| `swiping` | `boolean` | `true` | Enables swiping |
<Divider />
# Events!anchorId:events;
## pageChange!anchorId:events-page-change;
It is dispatched on page change.
| Payload field | Type | Description |
|--------------------|-------------|---------------------------------------|
| `event.detail` | `number` | Current page index |
```jsx
<Carousel
on:pageChange={
event => console.log(`Current page index: ${event.detail}`)
}
>
<!-- -->
</Carousel>
```
<Divider />
# Slots!anchorId:slots;
## prev and next!anchorId:slots-prev-next;
They are used for customizing prev and next buttons.
Slot props:
| Prop | Type | Description |
|--------------------|-------------|---------------------------------------|
| `showPrevPage` | `function` | Call it to switch to the previos page |
| `showNextPage` | `function` | Call it to switch to the next page |
```jsx
<Carousel
let:showPrevPage
let:showNextPage
>
<div slot="prev">
<!-- -->
</div>
<div slot="next">
<!-- -->
</div>
<!-- -->
</Carousel>
```
## dots!anchorId:slots-dots;
This slot is used for customizing how dots look like.
Slot props:
| Prop | Type | Description |
|---------------------|---------- --|----------------------------------------------|
| `currentPageIndex` | `number` | Represents current page index (start from 0) |
| `pagesCount` | `number` | Total pages amount |
| `showPage` | `function` | Takes index as page to be shown |
```jsx
<Carousel
let:currentPageIndex
let:pagesCount
let:showPage
>
<div slot="dots">
<!-- -->
</div>
<!-- -->
</Carousel>
```
## Default slot!anchorId:slots-default;
This slot takes content for the carousel.
Slot props:
| Prop | Type | Description |
|-------------------|------------|----------------------------------------------------------------------|
| `loaded` | `number[]` | Contains indexes of pages to be loaded. Can be used for lazy loading |
```jsx
<Carousel
let:loaded
>
<div>
<!-- -->
</div>
<!-- -->
</Carousel>
```
<Divider />
# Methods!anchorId:methods;
## goTo!anchorId:methods-go-to;
Navigates to a page by index. `(pageIndex, options) => Promise<void>`.
Arguments:
| Argument | Type | Default | Description |
|--------------------|-------------|---------|------------------------------|
| `pageIndex` | `number` | | Page number |
| `options.animated` | `boolean` | `true` | Should it be animated or not |
```jsx
<script>
// ...
let carousel;
function goToStartPage() {
carousel.goTo(0, { animated: false })
}
</script>
<Carousel
bind:this={carousel}
>
<!-- -->
</Carousel>
<button class="button" on:click={goToStartPage}>Go</button>
```
## goToPrev!anchorId:methods-go-to-prev;
Navigates to the previous page. `(options) => Promise<void>`.
Arguments:
| Argument | Type | Default | Description |
|--------------------|-------------|---------|------------------------------|
| `options.animated` | `boolean` | `true` | Should it be animated or not |
```jsx
<script>
// ...
let carousel;
function goToPrevPage() {
carousel.goToPrev({ animated: false })
}
</script>
<Carousel
bind:this={carousel}
>
<!-- -->
</Carousel>
<button class="button" on:click={goToPrevPage}>Go</button>
```
## goToNext!anchorId:methods-go-to-next;
Navigates to the next page. `(options) => Promise<void>`.
Arguments:
| Argument | Type | Default | Description |
|--------------------|-------------|---------|------------------------------|
| `options.animated` | `boolean` | `true` | Should it be animated or not |
```jsx
<script>
// ...
let carousel;
function goToNextPage() {
carousel.goToNext({ animated: false })
}
</script>
<Carousel
bind:this={carousel}
>
<!-- -->
</Carousel>
<button class="button" on:click={goToNextPage}>Go</button>
```
<Divider />
<style>
.img-container {
display: block;
width: 100%;
height: 200px;
}
.img-container > img {
width: 100%;
height: 100%;
object-fit: cover;
-webkit-user-drag: none;
}
/* custom arrows */
.custom-arrow {
width: 20px;
background-color: #000000;
opacity: 0.3;
position: absolute;
top: 0;
bottom: 0;
z-index: 1;
transition: opacity 150ms ease;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
-webkit-tap-highlight-color: transparent;
}
.custom-arrow:hover {
opacity: 0.5;
}
.custom-arrow > i {
border: solid #1e1e1e;
border-width: 0 5px 5px 0;
padding: 5px;
position: relative;
}
.custom-arrow-prev {
left: 0;
}
.custom-arrow-prev > i {
transform: rotate(135deg);
right: -4px;
}
.custom-arrow-next {
right: 0;
}
.custom-arrow-next > i {
transform: rotate(-45deg);
left: -4px;
}
/* custom dots */
.custom-dots {
display: flex;
flex-wrap: wrap;
align-items: center;
justify-content: center;
padding: 0 20px;
}
</style>