sortable-dnd
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JS library for drag-and-drop lists, supports sortable and draggable
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# sortable-dnd
[](https://www.npmjs.com/package/sortable-dnd) [](https://npm-stat.com/charts.html?package=sortable-dnd) [](LICENSE)
A JS Library for Drag and Drop, supports Sortable and Draggable
### [Live Demo](https://mfuu.github.io/sortable-dnd/)
## Usage
**Install**
```node
npm install sortable-dnd
```
**HTML**
```html
<ul id="group">
<li>1 </li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ul>
```
**JavaScript**
```js
import Sortable from 'sortable-dnd';
let sortable = new Sortable(document.getElementById('group'));
```
## Options
```js
new Sortable(element, {
draggable: '>*', // Specifies which items inside the element should be draggable
handle: '', // Drag handle selector within list items
group: '', // see @Group
lockAxis: '', // Axis on which dragging will be locked
multiple: false, // Enable multiple drag
selectHandle: '', // Handle selector within list items which used to select element in `multiple: true`
easing: '', // Easing for animation
animation: 150, // Animation speed moving items when sorting
chosenClass: '', // Class name for the chosen item
selectedClass: '', // The class of the element when it is selected, it is usually used when multiple drag
placeholderClass: '', // Class name for the drop placeholder
ghostStyle: {}, // The style of the mask element when dragging
ghostClass: '', // The class of the mask element when dragging
sortable: true, // Whether the current list can be sorted by dragging.
disabled: false, // Disables the sortable if set to true
autoScroll: true, // Automatic scrolling when moving to the edge of the container
scrollThreshold: 55, // Threshold to trigger autoscroll
scrollSpeed: { x: 10, y: 10 }, // Vertical&Horizontal scrolling speed (px)
delay: 0, // Time in milliseconds to define when the sorting should start
delayOnTouchOnly: false, // Only delay if user is using touch
touchStartThreshold: 1, // How many *pixels* the point should move before cancelling a delayed drag event.
emptyInsertThreshold: -1, // Distance mouse must be from empty sortable to insert drag element into it.
fallbackOnBody: false, // Appends the ghost element into the document's body
store: null, // store data
direction: '', // Direction of Sortable, will be detected automatically if not given.
swapOnDrop: true, // When the value is false, the dragged element will return to the starting position of the drag
removeCloneOnDrop: true, // Whether to remove the cloneEl after the drag is complete.
customGhost: (nodes) => {
// Customize the ghost element in drag
// you must return an HTMLElement
},
// Element is chosen
onChoose: (event) => {
// see @SortableEvent
},
// Element is unchosen
onUnchoose: (event) => {
// see @SortableEvent
},
// Element dragging started
onDrag: (event) => {
// see @SortableEvent
},
// Move an item in the list or between lists
onMove: (event) => {
// see @SortableEvent
},
// Element dragging is completed
onDrop: (event) => {
// see @SortableEvent
},
// Element is dropped into the current list from another (in the process of dragging)
onAdd: (event) => {
// see @SortableEvent
},
// Element is removed from the current list into another (in the process of dragging)
onRemove: (event) => {
// see @SortableEvent
},
// Dragging element changes position in the current list (in the process of dragging)
onChange: (event) => {
// see @SortableEvent
},
// Element is selected
onSelect: (event) => {
// see @SelectEvent
},
// Element is unselected
onDeselect: (event) => {
// see @SelectEvent
},
});
```
**Group**
```js
// string
group: 'name',
// object
group: {
name: 'group', // group name
// whether elements can be added from other lists,
// or an array of group names from which elements can be taken.
put: true | false | ['group1', 'group2'],
// whether elements can be moved out of this list.
pull: true | false | 'clone',
// revert drag element to initial position after moving to a another list.
revertDrag: true | false,
}
```
**SortableEvent**
```js
event.from; // previous list
event.to; // list of currently placed drag element
event.node; // dragged element
event.nodes; // dragged elements
event.clone; // cloned element, all dnd operations are based on cloned element and do not alter the source dom(node).
event.clones; // cloned elements, there is a value only in the `pull: clone` after moving to a another list.
event.target; // drop element
event.oldIndex; // old index within parent. `-1`: element added from another list to the current list
event.newIndex; // new index within parent. `-1`: element has been removed from the current list
event.event; // TouchEvent | MouseEvent
event.pullMode; // Pull mode if dragging into another sortable.
event.relative; // Position of the drop element relative to the drag element after swap is complete.
event.revertDrag; // revert draged element to initial position after moving to a another list in `pull: 'clone'` & `revertDrag: true`.
event.backToOrigin; // dragged element go back to the original list in `pull: 'clone'`.
```
**SelectEvent**
```js
event.event; // TouchEvent | MouseEvent
event.index; // index within parent
event.node; // dragged element
event.from; // list container
```
## Methods
```js
let sortable = new Sortable(el);
// Manually clear all the state of the component, using this method the component will not be draggable
sortable.destroy();
// Get or set the option value, depending on whether the `value` is passed in
sortable.option(key, value?);
// Selects the provided multi-drag item
sortable.select(element);
// Deselects the provided multi-drag item
sortable.deselect(element);
// Get the selected elements in the list, the return value is available in the case of `multiple`
sortable.getSelectedElements();
```
## Static Methods & Properties
```ts
import Sortable from 'sortable-dnd';
Sortable.create(el: HTMLElement, options: SortableOptions); // Create new instance
Sortable.get(el: HTMLElement); // Get the Sortable instance of an element
Sortable.dragged; // The element being dragged
Sortable.clone; // The clone element
Sortable.ghost; // The ghost element
Sortable.active; // Active Sortable instance
```
**Utils**
```ts
import Sortable from 'sortable-dnd';
const { on, off, css, index, closest, getRect, toggleClass } = Sortable.utils;
// attach an event handler function
on(el: HTMLElement, event: String, fn: Function);
// remove an event handler
off(el: HTMLElement, event: String, fn: Function);
// set one CSS properties
css(el: HTMLElement, prop: String, value: String);
// Returns the index of an element within its parent for a selected set of elements
index(el: HTMLElement, selector: String);
// For each element in the set, get the first element that matches the selector by testing the element itself and traversing up through its ancestors in the DOM tree.
closest(el: HTMLElement, selector: String, context: HTMLElement, includeContext: Boolean);
// Returns the "bounding client rect" of given element
getRect(element: HTMLElement, relativeToContainingBlock: boolean, container: HTMLElement);
// Add or remove one classes from each element
toggleClass(el: HTMLElement, name: String, state: Boolean);
```