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113
packages/taro-components-rn/src/components/Form/index.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| /** | ||
| * ✘ report-submit | ||
| * ✔ onSubmit(bindsubmit): no FormId info. | ||
| * ✘ onReset(bindreset) | ||
| * | ||
| * @flow | ||
| */ | ||
|
|
||
| import * as React from 'react' | ||
| import { | ||
| StyleSheet, | ||
| View | ||
| } from 'react-native' | ||
|
|
||
| type Props = { | ||
| children: ?React.Node, | ||
| style?: StyleSheet.Styles, | ||
| onSubmit?: Function, | ||
| onReset?: Function | ||
| } | ||
| type State = { | ||
| } | ||
|
|
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| function isFormTypeElement (typeName) { | ||
| return [ | ||
| '_Input', | ||
| '_Textarea', | ||
| '_CheckboxGroup', | ||
| '_RadioGroup', | ||
| '_Switch', | ||
| '_Slider', | ||
| '_Picker' | ||
| ].indexOf(typeName) >= 0 | ||
| } | ||
|
|
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| class _Form extends React.Component<Props, State> { | ||
| props: Props | ||
| state: State = { | ||
| } | ||
| formValues: Object = {} | ||
|
|
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| bindValueChangeEvent = (child) => { | ||
| // onChange: _CheckboxGroup _RadioGroup _Switch _Slider _Picker | ||
| // onBlur: _Input _Textarea | ||
| const childTypeName = child.type.name | ||
| const childPropsName = child.props.name | ||
| const valueChangeCbName = childTypeName === '_Input' || childTypeName === '_Textarea' ? 'onBlur' : 'onChange' | ||
| const tmpProps = { ...child.props } | ||
| // Initial value | ||
| if (['_Input', '_Textarea', '_Slider', '_Picker'].indexOf(childTypeName) >= 0) { | ||
| this.formValues[childPropsName] = child.props.value | ||
| } else if (childTypeName === '_Switch') { | ||
| this.formValues[childPropsName] = !!child.props.checked | ||
| } else { | ||
| tmpProps._onGroupDataInitial = (value) => { | ||
| this.formValues[childPropsName] = value | ||
| } | ||
| } | ||
| tmpProps[valueChangeCbName] = (event) => { | ||
| const cb = child.props[valueChangeCbName] | ||
| this.formValues[childPropsName] = event.detail.value | ||
| cb && cb(...arguments) | ||
| } | ||
| return React.cloneElement(child, tmpProps, child.props.children) | ||
| } | ||
|
|
||
| deppDiveIntoChildren = (children) => { | ||
| return React.Children.toArray(children).map((child) => { | ||
| const childTypeName = child.type.name | ||
| if (!child.type) return child | ||
| if (childTypeName === '_Button' && ['submit', 'reset'].indexOf(child.props.formType) >= 0) { | ||
| const onClick = child.props.onClick | ||
| return React.cloneElement(child, { | ||
| ...child.props, | ||
| onClick: () => { | ||
| this[child.props.formType]() | ||
| onClick && onClick() | ||
| } | ||
| }) | ||
| } | ||
| return isFormTypeElement(childTypeName) && child.props.name ? | ||
| this.bindValueChangeEvent(child) : | ||
| React.cloneElement(child, { ...child.props }, this.deppDiveIntoChildren(child.props.children)) | ||
| }) | ||
| } | ||
|
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| submit = () => { | ||
| const { onSubmit } = this.props | ||
| onSubmit && onSubmit({ | ||
| detail: { | ||
| value: this.formValues | ||
| } | ||
| }) | ||
| } | ||
|
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| reset = () => { | ||
| } | ||
|
|
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| render () { | ||
| const { | ||
| children, | ||
| style, | ||
| } = this.props | ||
|
|
||
| return ( | ||
| <View style={style}> | ||
| {this.deppDiveIntoChildren(children)} | ||
| </View> | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| export default _Form |
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