react-virtual-drag-list
v2.7.1
Published
A virtual scrolling list component that can be sorted by dragging
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react-virtual-drag-list
A virtual scrolling list component that can be sorted by dragging
Live Demo
Simple Usage
npm i react-virtual-drag-list
Root component:
import VirtualList from 'react-virtual-drag-list';
function Virtual() {
const [list, setList] = useState([{id: '1', text: 'a'}, {id: '2', text: 'b'}, ...]);
const onDrop = (event) => {
// dnd complete
setList(() => event.list);
}
// use style and className as jsx used
return (
<VirtualList
className="virtual-list"
style={{ height: '500px' }}
dataKey="id"
dataSource={ list }
handle=".handle"
header={ <div className="loading">top loading...</div> }
footer={ <div className="loading">bottom loading...</div> }
onDrop={ onDrop }
>
{
(record, index, dataKey) => {
return (
<div>
<span class=".handle">{ index }</span>
{ record.text }
</div>
)
}
}
</VirtualList>
)
}
Props
Callback
| Emit | Type | Default | Description |
| ---------- | ---------- | ----------- | --------------------------------------- |
| onTop
| Function
| - | Scrolling to the top of the scroller |
| onBottom
| Function
| - | Scrolling to the bottom of the scroller |
| onDrag
| Function
| - | Drag is started |
| onDrop
| Function
| - | Drag is complete |
Required props
| Prop | Type | Default | Description |
| ------------ | -------- | ----------- | --------------------------------------------------------------------- |
| dataKey
| String
| - | The unique identifier of each piece of data, in the form of 'a.b.c'
|
| dataSource
| Array
| []
| The data that needs to be rendered |
Common used
| Prop | Type | Default | Description |
| -------------- | ------------------------- | ----------- | ---------------------------------------------------------------------------------------------------------------- |
| header
| JSX.Element
| - | Top of list |
| footer
| JSX.Element
| - | Bottom of list |
| size
| Number
| - | Estimated height of each row. You can choose to pass it or not, it will be automatically calculated |
| keeps
| Number
| 30
| The number of lines rendered by the virtual scroll |
| handle
| String
| - | Drag handle selector within list items |
| group
| Object/String
| - | string: 'name' or object: { name: 'group', put: true/false, pull: true/false/'clone', revertDrag: true/false }
|
| scroller
| Document \| HTMLElement
| - | Virtual list scrolling element |
| direction
| vertical \| horizontal
| vertical
| Scroll direction |
| debounceTime
| Number
| 0
| debounce time on scroll |
| throttleTime
| Number
| 0
| debounce time on scroll |
| tableMode
| Boolean
| false
| display with table and tbody |
Uncommonly used
| Prop | Type | Default | Description |
| ------------------ | --------- | ------------------------- | --------------------------------------------------------------------------- |
| draggable
| String
| '.virutal-dnd-list-item' | Specifies which items inside the element should be draggable |
| sortable
| Boolean
| true
| Whether the current list can be sorted by dragging |
| lockAxis
| x \| y
| -
| Axis on which dragging will be locked |
| keepOffset
| Boolean
| false
| When scrolling up to load data, keep the same offset as the previous scroll |
| disabled
| Boolean
| false
| Disables the sortable if set to true |
| animation
| Number
| 150
| Drag-and-drop's animation delay |
| autoScroll
| Boolean
| true
| Automatic scrolling when moving to the edge of the container |
| scrollThreshold
| Number
| 55
| Threshold to trigger autoscroll |
| delay
| Number
| 0
| Time in milliseconds to define when the sorting should start |
| delayOnTouchOnly
| Boolean
| false
| Only delay on press if user is using touch |
| fallbackOnBody
| Boolean
| false
| Appends the ghost element into the document's body |
| rootTag
| String
| div
| Label type for root element |
| wrapTag
| String
| div
| Label type for list wrap element |
| wrapStyle
| Object
| {}
| List wrapper element style |
| wrapClass
| String
| ''
| List wrapper element class |
| itemClass
| String
| 'virutal-dnd-list-item'
| List item element class |
| ghostStyle
| Object
| {}
| The style of the mask element when dragging |
| ghostClass
| String
| ''
| The class of the mask element when dragging |
| chosenClass
| String
| ''
| The class of the selected element when dragging |
Methods
Use the methods exposed in the component by setting ref
...
const virtualRef = useRef();
const scrollToBottom = () => {
virtualRef.current.scrollToBottom();
}
return (
<button onClick={ scrollToBottom }></button>
<virtualList
ref={ virtualRef }
...
>
{
(record) => <div>{ record.text }</div>
}
</virtualList>
)
| Prop | Description |
| ------------------------ | ---------------------------------------------------------- |
| getSize(key)
| get the height of the specified item by key value |
| getOffset()
| get the current scroll top/left |
| getClientSize()
| Get wrapper element client viewport size (width or height) |
| getScrollSize()
| Get all scroll size (scrollHeight or scrollWidth) |
| scrollToTop()
| scroll to the top of the list |
| scrollToBottom()
| scroll to the bottom of the list |
| scrollToKey(key)
| scroll to the specified data-key |
| scrollToIndex(index)
| scroll to the specified index value |
| scrollToOffset(offset)
| scroll to the specified height |