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an elegant efficient express mvvm framework
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<a href="../index.html">all files</a> / <a href="index.html">directives/</a> validate.js
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<span class="strong">100% </span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import { avalon,isObject, platform} from '../seed/core'
var valiDir = avalon.directive('validate', {
diff: function (validator) {
var vdom = this.node
if (vdom.validator ) {
return
}
<span class="missing-if-branch" title="else path not taken" >E</span>if (isObject(validator)) {
//注意，这个Form标签的虚拟DOM有两个验证对象
//一个是vmValidator，它是用户VM上的那个原始子对象，也是一个VM
//一个是validator，它是vmValidator.$model， 这是为了防止IE6－8添加子属性时添加的hack
//也可以称之为safeValidate
vdom.vmValidator = validator
validator = platform.toJson(validator)
vdom.validator = validator
for (var name in valiDir.defaults) {
if (!validator.hasOwnProperty(name)) {
validator[name] = valiDir.defaults[name]
}
}
validator.fields = validator.fields || []
return true
}
},
update: function (vdom) {
var validator = vdom.validator
var dom = vdom.dom
validator.dom = dom
dom._ms_validate_ = validator
//为了方便用户手动执行验证，我们需要为原始vmValidate上添加一个onManual方法
var v = vdom.vmValidator
try {
v.onManual = onManual
} catch (e) {
}
delete vdom.vmValidator
dom.setAttribute('novalidate', 'novalidate')
function onManual() {
valiDir.validateAll.call(validator, validator.onValidateAll)
}
/* istanbul ignore if */
<span class="missing-if-branch" title="else path not taken" >E</span>if (validator.validateAllInSubmit) {
avalon.bind(dom, 'submit', function (e) {
e.preventDefault()
onManual()
})
}
/* istanbul ignore if */
<span class="skip-if-branch" title="if path not taken" >I</span>if (typeof validator.onInit === 'function') { //vmodels是不包括vmodel的
<span class="cstat-skip" title="statement not covered" > validator.onInit.call(dom, {</span>
type: 'init',
target: dom,
validator: validator
})
}
},
validateAll: function (callback) {
var validator = this
var fn = typeof callback === 'function' ? callback : validator.onValidateAll
var promises = validator.fields.filter(function (field) {
var el = field.dom
return el && !el.disabled && validator.dom.contains(el)
}).map(function (field) {
return valiDir.validate(field, true)
})
var uniq = {}
return Promise.all(promises).then(function (array) {
var reasons = array.concat.apply([], array)
if (validator.deduplicateInValidateAll) {
reasons = reasons.filter(function (reason) {
var el = reason.element
var uuid = el.uniqueID || (el.uniqueID = setTimeout('1'))
if (uniq[uuid]) {
return false
} else {
return uniq[uuid] = true
}
})
}
fn.call(validator.dom, reasons) //这里只放置未通过验证的组件
})
},
addField: function (field) {
var validator = this
var node = field.dom
/* istanbul ignore if */
if (validator.validateInKeyup && (!field.isChanged && !field.debounceTime)) {
avalon.bind(node, 'keyup', <span class="fstat-skip" title="function not covered" >function (e) {</span>
<span class="cstat-skip" title="statement not covered" > validator.validate(field, 0, e)</span>
})
}
/* istanbul ignore if */
<span class="missing-if-branch" title="else path not taken" >E</span>if (validator.validateInBlur) {
avalon.bind(node, 'blur', <span class="fstat-skip" title="function not covered" >function (e) {</span>
<span class="cstat-skip" title="statement not covered" > validator.validate(field, 0, e)</span>
})
}
/* istanbul ignore if */
<span class="missing-if-branch" title="else path not taken" >E</span>if (validator.resetInFocus) {
avalon.bind(node, 'focus', <span class="fstat-skip" title="function not covered" >function (e) {</span>
<span class="cstat-skip" title="statement not covered" > validator.onReset.call(node, e, field)</span>
})
}
},
validate: function (field, isValidateAll, event) {
var promises = []
var value = field.value
var elem = field.dom
/* istanbul ignore if */
<span class="skip-if-branch" title="if path not taken" >I</span>if (typeof Promise !== 'function') {//avalon-promise不支持phantomjs
<span class="cstat-skip" title="statement not covered" > avalon.wain('please npm install es6-promise or bluebird')</span>
}
/* istanbul ignore if */
<span class="skip-if-branch" title="if path not taken" >I</span>if (elem.disabled)
<span class="cstat-skip" title="statement not covered" > return</span>
var rules = field.rules
var ngs = [], isOk = true
<span class="missing-if-branch" title="else path not taken" >E</span>if (!(rules.norequired && <span class="branch-1 cbranch-no" title="branch not covered" >value === '')</span>) {
for (var ruleName in rules) {
var ruleValue = rules[ruleName]
if (ruleValue === false)
continue
var hook = avalon.validators[ruleName]
var resolve
promises.push(new Promise(function (a, b) {
resolve = a
}))
var next = function (a) {
var reason = {
element: elem,
data: field.data,
message: elem.getAttribute('data-' + ruleName + '-message') || elem.getAttribute('data-message') || hook.message,
validateRule: ruleName,
getMessage: getMessage
}
if (a) {
resolve(true)
} else {
isOk = false
ngs.push(reason)
resolve(false)
}
}
field.data = {}
field.data[ruleName] = ruleValue
hook.get(value, field, next)
}
}
//如果promises不为空，说明经过验证拦截器
return Promise.all(promises).then(function (array) {
if (!isValidateAll) {
var validator = field.validator
if (isOk) {
validator.onSuccess.call(elem, [{
data: field.data,
element: elem
}], event)
} else {
validator.onError.call(elem, ngs, event)
}
validator.onComplete.call(elem, ngs, event)
}
return ngs
})
}
})
var rformat = /\\?{{([^{}]+)\}}/gm
function getMessage() {
var data = this.data || <span class="branch-1 cbranch-no" title="branch not covered" >{}</span>
return this.message.replace(rformat, function (_, name) {
return data[name] == null ? <span class="branch-0 cbranch-no" title="branch not covered" >'' </span>: data[name]
})
}
valiDir.defaults = {
validate: valiDir.validate,
addField: valiDir.addField, //供内部使用,收集此元素底下的所有ms-duplex的域对象
onError: avalon.noop,
onSuccess: avalon.noop,
onComplete: avalon.noop,
onManual: avalon.noop,
onReset: avalon.noop,
onValidateAll: avalon.noop,
validateInBlur: true, //@config {Boolean} true，在blur事件中进行验证,触发onSuccess, onError, onComplete回调
validateInKeyup: true, //@config {Boolean} true，在keyup事件中进行验证,触发onSuccess, onError, onComplete回调
validateAllInSubmit: true, //@config {Boolean} true，在submit事件中执行onValidateAll回调
resetInFocus: true, //@config {Boolean} true，在focus事件中执行onReset回调,
deduplicateInValidateAll: false //@config {Boolean} false，在validateAll回调中对reason数组根据元素节点进行去重
}</pre></td></tr>
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