render.js
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import { makeMap } from '@/utils/index'
// 参考https://github.com/vuejs/vue/blob/v2.6.10/src/platforms/web/server/util.js
const isAttr = makeMap(
'accept,accept-charset,accesskey,action,align,alt,async,autocomplete,'
+ 'autofocus,autoplay,autosave,bgcolor,border,buffered,challenge,charset,'
+ 'checked,cite,class,code,codebase,color,cols,colspan,content,http-equiv,'
+ 'name,contenteditable,contextmenu,controls,coords,data,datetime,default,'
+ 'defer,dir,dirname,disabled,download,draggable,dropzone,enctype,method,for,'
+ 'form,formaction,headers,height,hidden,high,href,hreflang,http-equiv,'
+ 'icon,id,ismap,itemprop,keytype,kind,label,lang,language,list,loop,low,'
+ 'manifest,max,maxlength,media,method,GET,POST,min,multiple,email,file,'
+ 'muted,name,novalidate,open,optimum,pattern,ping,placeholder,poster,'
+ 'preload,radiogroup,readonly,rel,required,reversed,rows,rowspan,sandbox,'
+ 'scope,scoped,seamless,selected,shape,size,type,text,password,sizes,span,'
+ 'spellcheck,src,srcdoc,srclang,srcset,start,step,style,summary,tabindex,'
+ 'target,title,type,usemap,value,width,wrap'
)
function vModel(self, dataObject, defaultValue) {
dataObject.props.value = defaultValue
dataObject.on.input = val => {
self.$emit('input', val)
}
}
const componentChild = {
'el-button': {
default(h, conf, key) {
return conf[key]
},
},
'el-input': {
prepend(h, conf, key) {
return <template slot="prepend">{conf[key]}</template>
},
append(h, conf, key) {
return <template slot="append">{conf[key]}</template>
}
},
'el-select': {
options(h, conf, key) {
const list = []
conf.options.forEach(item => {
list.push(<el-option label={item.label} value={item.value} disabled={item.disabled}></el-option>)
})
return list
}
},
'el-radio-group': {
options(h, conf, key) {
const list = []
conf.options.forEach(item => {
if (conf.optionType === 'button') list.push(<el-radio-button label={item.value}>{item.label}</el-radio-button>)
else list.push(<el-radio label={item.value} border={conf.border}>{item.label}</el-radio>)
})
return list
}
},
'el-checkbox-group': {
options(h, conf, key) {
const list = []
conf.options.forEach(item => {
if (conf.optionType === 'button') {
list.push(<el-checkbox-button label={item.value}>{item.label}</el-checkbox-button>)
} else {
list.push(<el-checkbox label={item.value} border={conf.border}>{item.label}</el-checkbox>)
}
})
return list
}
},
'el-upload': {
'list-type': (h, conf, key) => {
const list = []
if (conf['list-type'] === 'picture-card') {
list.push(<i class="el-icon-plus"></i>)
} else {
list.push(<el-button size="small" type="primary" icon="el-icon-upload">{conf.buttonText}</el-button>)
}
if (conf.showTip) {
list.push(<div slot="tip" class="el-upload__tip">只能上传不超过 {conf.fileSize}{conf.sizeUnit} 的{conf.accept}文件</div>)
}
return list
}
}
}
export default {
render(h) {
const dataObject = {
attrs: {},
props: {},
on: {},
style: {}
}
const confClone = JSON.parse(JSON.stringify(this.conf))
const children = []
const childObjs = componentChild[confClone.tag]
if (childObjs) {
Object.keys(childObjs).forEach(key => {
const childFunc = childObjs[key]
if (confClone[key]) {
children.push(childFunc(h, confClone, key))
}
})
}
Object.keys(confClone).forEach(key => {
const val = confClone[key]
if (key === 'vModel') {
vModel(this, dataObject, confClone.defaultValue)
} else if (dataObject[key]) {
dataObject[key] = val
} else if (!isAttr(key)) {
dataObject.props[key] = val
} else {
dataObject.attrs[key] = val
}
})
return h(this.conf.tag, dataObject, children)
},
props: ['conf']
}