import { orphanTag } from './orphanTag'
import { voidTag } from './voidTag'
import { makeOrphan } from './makeOrphan'
export function fromDOM(dom) {
return [from(dom)]
}
export function from(node) {
var type = node.nodeName.toLowerCase()
switch (type) {
case '#text':
case '#comment':
return {
nodeName: type,
dom: node,
nodeValue: node.nodeValue
}
default:
var props = markProps(node, node.attributes || [])
var vnode = {
nodeName: type,
dom: node,
isVoidTag: !!voidTag[type],
props: props
}
if(type === 'option'){
//即便你设置了option.selected = true,
//option.attributes也找不到selected属性
props.selected = node.selected
}
if (orphanTag[type] || type === 'option') {
makeOrphan(vnode, type, node.text || node.innerHTML)
if (node.childNodes.length === 1) {
vnode.children[0].dom = node.firstChild
}
} else if (!vnode.isVoidTag) {
vnode.children = []
for (var i = 0, el; el = node.childNodes[i++];) {
var child = from(el)
if (/\S/.test(child.nodeValue)) {
vnode.children.push(child)
}
}
}
return vnode
}
}
var rformElement = /input|textarea|select/i
function markProps(node, attrs) {
var ret = {}
for (var i = 0, n = attrs.length; i < n; i++) {
var attr = attrs[i]
Eif (attr.specified) {
//IE6-9不会将属性名变小写,比如它会将用户的contenteditable变成contentEditable
ret[attr.name.toLowerCase()] = attr.value
}
}
if (rformElement.test(node.nodeName)) {
ret.type = node.type
var a = node.getAttributeNode('value')
if (a && /\S/.test(a.value)) { //IE6,7中无法取得checkbox,radio的value
ret.value = a.value
}
}
var style = node.style.cssText
if (style) {
ret.style = style
}
//类名 = 去重(静态类名+动态类名+ hover类名? + active类名)
if (ret.type === 'select-one') {
ret.selectedIndex = node.selectedIndex
}
return ret
} |