This commit is contained in:
Ivan
2021-06-07 11:56:04 +08:00
commit c3c9fee2fb
1071 changed files with 195655 additions and 0 deletions

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packages/form/index.js Normal file
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import ElForm from './src/form';
/* istanbul ignore next */
ElForm.install = function(Vue) {
Vue.component(ElForm.name, ElForm);
};
export default ElForm;

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<template>
<div class="el-form-item" :class="[{
'el-form-item--feedback': elForm && elForm.statusIcon,
'is-error': validateState === 'error',
'is-validating': validateState === 'validating',
'is-success': validateState === 'success',
'is-required': isRequired || required,
'is-no-asterisk': elForm && elForm.hideRequiredAsterisk
},
sizeClass ? 'el-form-item--' + sizeClass : ''
]">
<label-wrap
:is-auto-width="labelStyle && labelStyle.width === 'auto'"
:update-all="form.labelWidth === 'auto'">
<label :for="labelFor" class="el-form-item__label" :style="labelStyle" v-if="label || $slots.label">
<slot name="label">{{label + form.labelSuffix}}</slot>
</label>
</label-wrap>
<div class="el-form-item__content" :style="contentStyle">
<slot></slot>
<transition name="el-zoom-in-top">
<slot
v-if="validateState === 'error' && showMessage && form.showMessage"
name="error"
:error="validateMessage">
<div
class="el-form-item__error"
:class="{
'el-form-item__error--inline': typeof inlineMessage === 'boolean'
? inlineMessage
: (elForm && elForm.inlineMessage || false)
}"
>
{{validateMessage}}
</div>
</slot>
</transition>
</div>
</div>
</template>
<script>
import AsyncValidator from 'async-validator';
import emitter from 'element-ui/src/mixins/emitter';
import objectAssign from 'element-ui/src/utils/merge';
import { noop, getPropByPath } from 'element-ui/src/utils/util';
import LabelWrap from './label-wrap';
export default {
name: 'ElFormItem',
componentName: 'ElFormItem',
mixins: [emitter],
provide() {
return {
elFormItem: this
};
},
inject: ['elForm'],
props: {
label: String,
labelWidth: String,
prop: String,
required: {
type: Boolean,
default: undefined
},
rules: [Object, Array],
error: String,
validateStatus: String,
for: String,
inlineMessage: {
type: [String, Boolean],
default: ''
},
showMessage: {
type: Boolean,
default: true
},
size: String
},
components: {
// use this component to calculate auto width
LabelWrap
},
watch: {
error: {
immediate: true,
handler(value) {
this.validateMessage = value;
this.validateState = value ? 'error' : '';
}
},
validateStatus(value) {
this.validateState = value;
}
},
computed: {
labelFor() {
return this.for || this.prop;
},
labelStyle() {
const ret = {};
if (this.form.labelPosition === 'top') return ret;
const labelWidth = this.labelWidth || this.form.labelWidth;
if (labelWidth) {
ret.width = labelWidth;
}
return ret;
},
contentStyle() {
const ret = {};
const label = this.label;
if (this.form.labelPosition === 'top' || this.form.inline) return ret;
if (!label && !this.labelWidth && this.isNested) return ret;
const labelWidth = this.labelWidth || this.form.labelWidth;
if (labelWidth === 'auto') {
if (this.labelWidth === 'auto') {
ret.marginLeft = this.computedLabelWidth;
} else if (this.form.labelWidth === 'auto') {
ret.marginLeft = this.elForm.autoLabelWidth;
}
} else {
ret.marginLeft = labelWidth;
}
return ret;
},
form() {
let parent = this.$parent;
let parentName = parent.$options.componentName;
while (parentName !== 'ElForm') {
if (parentName === 'ElFormItem') {
this.isNested = true;
}
parent = parent.$parent;
parentName = parent.$options.componentName;
}
return parent;
},
fieldValue() {
const model = this.form.model;
if (!model || !this.prop) { return; }
let path = this.prop;
if (path.indexOf(':') !== -1) {
path = path.replace(/:/, '.');
}
return getPropByPath(model, path, true).v;
},
isRequired() {
let rules = this.getRules();
let isRequired = false;
if (rules && rules.length) {
rules.every(rule => {
if (rule.required) {
isRequired = true;
return false;
}
return true;
});
}
return isRequired;
},
_formSize() {
return this.elForm.size;
},
elFormItemSize() {
return this.size || this._formSize;
},
sizeClass() {
return this.elFormItemSize || (this.$ELEMENT || {}).size;
}
},
data() {
return {
validateState: '',
validateMessage: '',
validateDisabled: false,
validator: {},
isNested: false,
computedLabelWidth: ''
};
},
methods: {
validate(trigger, callback = noop) {
this.validateDisabled = false;
const rules = this.getFilteredRule(trigger);
if ((!rules || rules.length === 0) && this.required === undefined) {
callback();
return true;
}
this.validateState = 'validating';
const descriptor = {};
if (rules && rules.length > 0) {
rules.forEach(rule => {
delete rule.trigger;
});
}
descriptor[this.prop] = rules;
const validator = new AsyncValidator(descriptor);
const model = {};
model[this.prop] = this.fieldValue;
validator.validate(model, { firstFields: true }, (errors, invalidFields) => {
this.validateState = !errors ? 'success' : 'error';
this.validateMessage = errors ? errors[0].message : '';
callback(this.validateMessage, invalidFields);
this.elForm && this.elForm.$emit('validate', this.prop, !errors, this.validateMessage || null);
});
},
clearValidate() {
this.validateState = '';
this.validateMessage = '';
this.validateDisabled = false;
},
resetField() {
this.validateState = '';
this.validateMessage = '';
let model = this.form.model;
let value = this.fieldValue;
let path = this.prop;
if (path.indexOf(':') !== -1) {
path = path.replace(/:/, '.');
}
let prop = getPropByPath(model, path, true);
this.validateDisabled = true;
if (Array.isArray(value)) {
prop.o[prop.k] = [].concat(this.initialValue);
} else {
prop.o[prop.k] = this.initialValue;
}
// reset validateDisabled after onFieldChange triggered
this.$nextTick(() => {
this.validateDisabled = false;
});
this.broadcast('ElTimeSelect', 'fieldReset', this.initialValue);
},
getRules() {
let formRules = this.form.rules;
const selfRules = this.rules;
const requiredRule = this.required !== undefined ? { required: !!this.required } : [];
const prop = getPropByPath(formRules, this.prop || '');
formRules = formRules ? (prop.o[this.prop || ''] || prop.v) : [];
return [].concat(selfRules || formRules || []).concat(requiredRule);
},
getFilteredRule(trigger) {
const rules = this.getRules();
return rules.filter(rule => {
if (!rule.trigger || trigger === '') return true;
if (Array.isArray(rule.trigger)) {
return rule.trigger.indexOf(trigger) > -1;
} else {
return rule.trigger === trigger;
}
}).map(rule => objectAssign({}, rule));
},
onFieldBlur() {
this.validate('blur');
},
onFieldChange() {
if (this.validateDisabled) {
this.validateDisabled = false;
return;
}
this.validate('change');
},
updateComputedLabelWidth(width) {
this.computedLabelWidth = width ? `${width}px` : '';
},
addValidateEvents() {
const rules = this.getRules();
if (rules.length || this.required !== undefined) {
this.$on('el.form.blur', this.onFieldBlur);
this.$on('el.form.change', this.onFieldChange);
}
},
removeValidateEvents() {
this.$off();
}
},
mounted() {
if (this.prop) {
this.dispatch('ElForm', 'el.form.addField', [this]);
let initialValue = this.fieldValue;
if (Array.isArray(initialValue)) {
initialValue = [].concat(initialValue);
}
Object.defineProperty(this, 'initialValue', {
value: initialValue
});
this.addValidateEvents();
}
},
beforeDestroy() {
this.dispatch('ElForm', 'el.form.removeField', [this]);
}
};
</script>

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packages/form/src/form.vue Normal file
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<template>
<form class="el-form" :class="[
labelPosition ? 'el-form--label-' + labelPosition : '',
{ 'el-form--inline': inline }
]">
<slot></slot>
</form>
</template>
<script>
import objectAssign from 'element-ui/src/utils/merge';
export default {
name: 'ElForm',
componentName: 'ElForm',
provide() {
return {
elForm: this
};
},
props: {
model: Object,
rules: Object,
labelPosition: String,
labelWidth: String,
labelSuffix: {
type: String,
default: ''
},
inline: Boolean,
inlineMessage: Boolean,
statusIcon: Boolean,
showMessage: {
type: Boolean,
default: true
},
size: String,
disabled: Boolean,
validateOnRuleChange: {
type: Boolean,
default: true
},
hideRequiredAsterisk: {
type: Boolean,
default: false
}
},
watch: {
rules() {
// remove then add event listeners on form-item after form rules change
this.fields.forEach(field => {
field.removeValidateEvents();
field.addValidateEvents();
});
if (this.validateOnRuleChange) {
this.validate(() => {});
}
}
},
computed: {
autoLabelWidth() {
if (!this.potentialLabelWidthArr.length) return 0;
const max = Math.max(...this.potentialLabelWidthArr);
return max ? `${max}px` : '';
}
},
data() {
return {
fields: [],
potentialLabelWidthArr: [] // use this array to calculate auto width
};
},
created() {
this.$on('el.form.addField', (field) => {
if (field) {
this.fields.push(field);
}
});
/* istanbul ignore next */
this.$on('el.form.removeField', (field) => {
if (field.prop) {
this.fields.splice(this.fields.indexOf(field), 1);
}
});
},
methods: {
resetFields() {
if (!this.model) {
console.warn('[Element Warn][Form]model is required for resetFields to work.');
return;
}
this.fields.forEach(field => {
field.resetField();
});
},
clearValidate(props = []) {
const fields = props.length
? (typeof props === 'string'
? this.fields.filter(field => props === field.prop)
: this.fields.filter(field => props.indexOf(field.prop) > -1)
) : this.fields;
fields.forEach(field => {
field.clearValidate();
});
},
validate(callback) {
if (!this.model) {
console.warn('[Element Warn][Form]model is required for validate to work!');
return;
}
let promise;
// if no callback, return promise
if (typeof callback !== 'function' && window.Promise) {
promise = new window.Promise((resolve, reject) => {
callback = function(valid) {
valid ? resolve(valid) : reject(valid);
};
});
}
let valid = true;
let count = 0;
// 如果需要验证的fields为空调用验证时立刻返回callback
if (this.fields.length === 0 && callback) {
callback(true);
}
let invalidFields = {};
this.fields.forEach(field => {
field.validate('', (message, field) => {
if (message) {
valid = false;
}
invalidFields = objectAssign({}, invalidFields, field);
if (typeof callback === 'function' && ++count === this.fields.length) {
callback(valid, invalidFields);
}
});
});
if (promise) {
return promise;
}
},
validateField(props, cb) {
props = [].concat(props);
const fields = this.fields.filter(field => props.indexOf(field.prop) !== -1);
if (!fields.length) {
console.warn('[Element Warn]please pass correct props!');
return;
}
fields.forEach(field => {
field.validate('', cb);
});
},
getLabelWidthIndex(width) {
const index = this.potentialLabelWidthArr.indexOf(width);
// it's impossible
if (index === -1) {
throw new Error('[ElementForm]unpected width ', width);
}
return index;
},
registerLabelWidth(val, oldVal) {
if (val && oldVal) {
const index = this.getLabelWidthIndex(oldVal);
this.potentialLabelWidthArr.splice(index, 1, val);
} else if (val) {
this.potentialLabelWidthArr.push(val);
}
},
deregisterLabelWidth(val) {
const index = this.getLabelWidthIndex(val);
this.potentialLabelWidthArr.splice(index, 1);
}
}
};
</script>

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<script>
export default {
props: {
isAutoWidth: Boolean,
updateAll: Boolean
},
inject: ['elForm', 'elFormItem'],
render() {
const slots = this.$slots.default;
if (!slots) return null;
if (this.isAutoWidth) {
const autoLabelWidth = this.elForm.autoLabelWidth;
const style = {};
if (autoLabelWidth && autoLabelWidth !== 'auto') {
const marginLeft = parseInt(autoLabelWidth, 10) - this.computedWidth;
if (marginLeft) {
style.marginLeft = marginLeft + 'px';
}
}
return (<div class="el-form-item__label-wrap" style={style}>
{ slots }
</div>);
} else {
return slots[0];
}
},
methods: {
getLabelWidth() {
if (this.$el && this.$el.firstElementChild) {
const computedWidth = window.getComputedStyle(this.$el.firstElementChild).width;
return Math.ceil(parseFloat(computedWidth));
} else {
return 0;
}
},
updateLabelWidth(action = 'update') {
if (this.$slots.default && this.isAutoWidth && this.$el.firstElementChild) {
if (action === 'update') {
this.computedWidth = this.getLabelWidth();
} else if (action === 'remove') {
this.elForm.deregisterLabelWidth(this.computedWidth);
}
}
}
},
watch: {
computedWidth(val, oldVal) {
if (this.updateAll) {
this.elForm.registerLabelWidth(val, oldVal);
this.elFormItem.updateComputedLabelWidth(val);
}
}
},
data() {
return {
computedWidth: 0
};
},
mounted() {
this.updateLabelWidth('update');
},
updated() {
this.updateLabelWidth('update');
},
beforeDestroy() {
this.updateLabelWidth('remove');
}
};
</script>