import { avalon, rnowhite, rword } from '../../seed/core'
export function ClassList(node) {
this.node = node
}
ClassList.prototype = {
toString() {
var node = this.node
var cls = node.className
var str = typeof cls === 'string' ? cls : cls.baseVal
var match = str.match(rnowhite)
return match ? match.join(' ') : ''
},
contains(cls) {
return (' ' + this + ' ').indexOf(' ' + cls + ' ') > -1
},
add(cls) {
Eif (!this.contains(cls)) {
this.set(this + ' ' + cls)
}
},
remove(cls) {
this.set((' ' + this + ' ').replace(' ' + cls + ' ', ' '))
},
set(cls) {
cls = cls.trim()
var node = this.node
if (typeof node.className === 'object') {
//SVG元素的className是一个对象 SVGAnimatedString { baseVal='', animVal=''}，只能通过set/getAttribute操作
node.setAttribute('class', cls)
} else {
node.className = cls
}
Iif (!cls) {
node.removeAttribute('class')
}
//toggle存在版本差异，因此不使用它
}
}
export function classListFactory(node) {
if (!('classList' in node)) {
node.classList = new ClassList(node)
}
return node.classList
}
'add,remove'.replace(rword, function(method) {
avalon.fn[method + 'Class'] = function(cls) {
var el = this[0] || {}
//https://developer.mozilla.org/zh-CN/docs/Mozilla/Firefox/Releases/26
if (cls && typeof cls === 'string' && el.nodeType === 1) {
cls.replace(rnowhite, function(c) {
classListFactory(el)[method](c)
})
}
return this
}
})
avalon.shadowCopy(avalon.fn, {
hasClass: function(cls) {
var el = this[0] || {}
return el.nodeType === 1 && classListFactory(el).contains(cls)
},
toggleClass: function(value, stateVal) {
var isBool = typeof stateVal === 'boolean'
var me = this
String(value).replace(rnowhite, function(c) {
var state = isBool ? stateVal : !me.hasClass(c)
me[state ? 'addClass' : 'removeClass'](c)
})
return this
}
}) |