js拖拽库——Sortable.js
Sortable.js是一款优秀的js拖拽库,支持ie9及以上版本ie浏览器和现代浏览器,也可以运行在移动触摸设备中。不依赖jQuery。支持 Meteor、AngularJS、React、Vue、Knockout框架和任何CSS库,如Bootstrap、Element UI。你可以用来拖拽div、table等元素。
Sortable.js是一款优秀的js拖拽库,支持ie9及以上版本ie浏览器和现代浏览器,也可以运行在移动触摸设备中。不依赖jQuery。支持 Meteor、AngularJS、React、Vue、Knockout框架和任何CSS库,如Bootstrap、Element UI。你可以用来拖拽div、table等元素。
相关文档推荐:
官方文档 https://github.com/SortableJS/Sortable
中文文档 https://www.itxst.com/sortablejs
演示 http://sortablejs.github.io/Sortable/
开始
npm方式安装
$ npm install sortablejs --save
Bower方式安装
$ bower install --save sortablejs
引入项目方式
// 默认
import Sortable from 'sortablejs';
// 没有默认插件
import Sortable from 'sortablejs/modular/sortable.core.esm.js';
// 包含所有插件
import Sortable from 'sortablejs/modular/sortable.complete.esm.js';
Cherrypick plugins
// Cherrypick extra plugins
import Sortable, { MultiDrag, Swap } from 'sortablejs';
Sortable.mount(new MultiDrag(), new Swap());
// Cherrypick default plugins
import Sortable, { AutoScroll } from 'sortablejs/modular/sortable.core.esm.js';
Sortable.mount(new AutoScroll());
示例
<ul id="items">
<li>item 1</li>
<li>item 2</li>
<li>item 3</li>
</ul>
var el = document.getElementById('items');
var sortable = Sortable.create(el);
完整配置项
var sortable = new Sortable(el, {
group: "name", // or { name: "...", pull: [true, false, 'clone', array], put: [true, false, array] }
sort: true, // sorting inside list
delay: 0, // time in milliseconds to define when the sorting should start
delayOnTouchOnly: false, // only delay if user is using touch
touchStartThreshold: 0, // px, how many pixels the point should move before cancelling a delayed drag event
disabled: false, // Disables the sortable if set to true.
store: null, // @see Store
animation: 150, // ms, animation speed moving items when sorting, `0` — without animation
easing: "cubic-bezier(1, 0, 0, 1)", // Easing for animation. Defaults to null. See https://easings.net/ for examples.
handle: ".my-handle", // Drag handle selector within list items
filter: ".ignore-elements", // Selectors that do not lead to dragging (String or Function)
preventOnFilter: true, // Call `event.preventDefault()` when triggered `filter`
draggable: ".item", // Specifies which items inside the element should be draggable
dataIdAttr: 'data-id', // HTML attribute that is used by the `toArray()` method
ghostClass: "sortable-ghost", // Class name for the drop placeholder
chosenClass: "sortable-chosen", // Class name for the chosen item
dragClass: "sortable-drag", // Class name for the dragging item
swapThreshold: 1, // Threshold of the swap zone
invertSwap: false, // Will always use inverted swap zone if set to true
invertedSwapThreshold: 1, // Threshold of the inverted swap zone (will be set to swapThreshold value by default)
direction: 'horizontal', // Direction of Sortable (will be detected automatically if not given)
forceFallback: false, // ignore the HTML5 DnD behaviour and force the fallback to kick in
fallbackClass: "sortable-fallback", // Class name for the cloned DOM Element when using forceFallback
fallbackOnBody: false, // Appends the cloned DOM Element into the Document's Body
fallbackTolerance: 0, // Specify in pixels how far the mouse should move before it's considered as a drag.
dragoverBubble: false,
removeCloneOnHide: true, // Remove the clone element when it is not showing, rather than just hiding it
emptyInsertThreshold: 5, // px, distance mouse must be from empty sortable to insert drag element into it
setData: function (/** DataTransfer */dataTransfer, /** HTMLElement*/dragEl) {
dataTransfer.setData('Text', dragEl.textContent); // `dataTransfer` object of HTML5 DragEvent
},
// Element is chosen
onChoose: function (/**Event*/evt) {
evt.oldIndex; // element index within parent
},
// Element is unchosen
onUnchoose: function(/**Event*/evt) {
// same properties as onEnd
},
// Element dragging started
onStart: function (/**Event*/evt) {
evt.oldIndex; // element index within parent
},
// Element dragging ended
onEnd: function (/**Event*/evt) {
var itemEl = evt.item; // dragged HTMLElement
evt.to; // target list
evt.from; // previous list
evt.oldIndex; // element's old index within old parent
evt.newIndex; // element's new index within new parent
evt.oldDraggableIndex; // element's old index within old parent, only counting draggable elements
evt.newDraggableIndex; // element's new index within new parent, only counting draggable elements
evt.clone // the clone element
evt.pullMode; // when item is in another sortable: `"clone"` if cloning, `true` if moving
},
// Element is dropped into the list from another list
onAdd: function (/**Event*/evt) {
// same properties as onEnd
},
// Changed sorting within list
onUpdate: function (/**Event*/evt) {
// same properties as onEnd
},
// Called by any change to the list (add / update / remove)
onSort: function (/**Event*/evt) {
// same properties as onEnd
},
// Element is removed from the list into another list
onRemove: function (/**Event*/evt) {
// same properties as onEnd
},
// Attempt to drag a filtered element
onFilter: function (/**Event*/evt) {
var itemEl = evt.item; // HTMLElement receiving the `mousedown|tapstart` event.
},
// Event when you move an item in the list or between lists
onMove: function (/**Event*/evt, /**Event*/originalEvent) {
// Example: https://jsbin.com/nawahef/edit?js,output
evt.dragged; // dragged HTMLElement
evt.draggedRect; // DOMRect {left, top, right, bottom}
evt.related; // HTMLElement on which have guided
evt.relatedRect; // DOMRect
evt.willInsertAfter; // Boolean that is true if Sortable will insert drag element after target by default
originalEvent.clientY; // mouse position
// return false; — for cancel
// return -1; — insert before target
// return 1; — insert after target
// return true; — keep default insertion point based on the direction
// return void; — keep default insertion point based on the direction
},
// Called when creating a clone of element
onClone: function (/**Event*/evt) {
var origEl = evt.item;
var cloneEl = evt.clone;
},
// Called when dragging element changes position
onChange: function(/**Event*/evt) {
evt.newIndex // most likely why this event is used is to get the dragging element's current index
// same properties as onEnd
}
});
group:string or object
要将元素从一个列表拖动到另一个列表中,两个列表必须具有相同的组值。
string:命名,个人建议用元素id就行,用处是为了设置可以拖放容器时使用,在array中的put的设置中再做介绍;
object:{name,pull,put}
name:同string的方法,
pull:pull用来定义从这个列表容器移动出去的设置,true/false/‘clone’/function
true:列表容器内的列表单元可以被移出;
false:列表容器内的列表单元不可以被移出;
‘clone’:列表单元移出,移动的为该元素的副本;
function:用来进行pull的函数判断,可以进行复杂逻辑,在函数中return false/true来判断是否移出;
put:put用来定义往这个列表容器放置列表单元的的设置,true/false/[‘foo’,‘bar’]/function
true:列表容器可以从其他列表容器内放入列表单元;
false:与true相反;
[‘foo’,‘bar’]:这个可以是一个字符串或者是字符串的数组,代表的是group配置项里定义的name值;
function:用来进行put的函数判断,可以进行复杂逻辑,在函数中return false/true来判断是否放入;
演示:
https://jsbin.com/hijetos/edit?js,output
https://jsbin.com/nacoyah/edit?js,output
https://jsbin.com/bifuyab/edit?js,output
sort:boolean 定义是否列表单元是否可以在列表容器内进行拖拽排序;
演示:
https://jsbin.com/jayedig/edit?js,output
delay:number 定义鼠标选中列表单元可以开始拖动的延迟时间;
演示:
https://jsbin.com/zosiwah/edit?js,output
disabled:boolean 定义是否此sortable对象是否可用,为true时sortable对象不能拖放排序等功能,为false时为可以进行排序,相当于一个开关;
演示:
https://jsbin.com/sewokud/edit?js,output
animation:number 单位:ms,定义排序动画的时间;
handle:selector 格式为简单css选择器的字符串,使列表单元中符合选择器的元素成为拖动的手柄,只有按住拖动手柄才能使列表单元进行拖动;
演示:
https://jsbin.com/numakuh/edit?html,js,output
filter:selector 格式为简单css选择器的字符串,定义哪些列表单元不能进行拖放,可设置为多个选择器,中间用“,”分隔;
draggable:selector 格式为简单css选择器的字符串,定义哪些列表单元可以进行拖放
ghostClass:selector 格式为简单css选择器的字符串,当拖动列表单元时会生成一个副本作为影子单元来模拟被拖动单元排序的情况,此配置项就是来给这个影子单元添加一个class,我们可以通过这种方式来给影子元素进行编辑样式;
演示:
https://jsbin.com/henuyiw/edit?css,js,output
chosenClass:selector 格式为简单css选择器的字符串,当选中列表单元时会给该单元增加一个class;
演示:
https://jsbin.com/hoqufox/edit?css,js,output
forceFallback:boolean 如果设置为true时,将不使用原生的html5的拖放,可以修改一些拖放中元素的样式等;
演示:
https://jsbin.com/sibiput/edit?html,css,js,output
fallbackClass:string 当forceFallback设置为true时,拖放过程中鼠标附着单元的样式;
scroll:boolean 默认为true,当排序的容器是个可滚动的区域,拖放可以引起区域滚动
事件
onChoose:function 列表单元被选中的回调函数
onStart:function 列表单元拖动开始的回调函数
onEnd:function 列表单元拖放结束后的回调函数
onAdd:function 列表单元添加到本列表容器的回调函数
onUpdate:function 列表单元在列表容器中的排序发生变化后的回调函数
onRemove:function 列表元素移到另一个列表容器的回调函数
onFilter:function 试图选中一个被filter过滤的列表单元的回调函数
onMove:function 当移动列表单元在一个列表容器中或者多个列表容器中的回调函数
onClone:function 当创建一个列表单元副本的时候的回调函数
事件对象
事件对象在各个函数中略有不同,可通过输出对象查看对象的属性,下面简单列举几个:
to:HTMLElement–移动到列表容器
from:HTMLElement–来源的列表容器
item:HTMLElement–被移动的列表单元
clone:HTMLElement–副本的列表单元
oldIndex:number/undefined–在列表容器中的原序号
newIndex:number/undefined–在列表容器中的新序号
方法
option(name[,value])
获得或者设置项参数,使用方法类似于jQuery用法,没有第二个参数为获得option中第一个参数所对应的值,有第二个参数时,将重新赋给第一个参数所对应的值;
closest
没理解
toArray()
序列化可排序的列表单元的data-id(可通过配置项中dataIdAttr修改)放入一个数组,并返回这个数组中
sort()
通过自定义列表单元的data-id的数组对列表单元进行排序
save()
destroy()
Store
保存和恢复排序。
<ul>
<li data-id="1">order</li>
<li data-id="2">save</li>
<li data-id="3">restore</li>
</ul>
Sortable.create(el, {
group: "localStorage-example",
store: {
/**
* Get the order of elements. Called once during initialization.
* @param {Sortable} sortable
* @returns {Array}
*/
get: function (sortable) {
var order = localStorage.getItem(sortable.options.group.name);
return order ? order.split('|') : [];
},
/**
* Save the order of elements. Called onEnd (when the item is dropped).
* @param {Sortable} sortable
*/
set: function (sortable) {
var order = sortable.toArray();
localStorage.setItem(sortable.options.group.name, order.join('|'));
}
}
})
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