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feat(ui): button-group component. Closes #290
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| import React from 'react'; | ||
| import { | ||
| Group, | ||
| StyleSheet, | ||
| View, | ||
| ViewProps, | ||
| } from 'react-native'; | ||
| import { | ||
| StyledComponentProps, | ||
| StyleType, | ||
| } from '@kitten/theme'; | ||
| import { Props as ButtonProps } from '../button/button.component'; | ||
| import { | ||
| ButtonStyleProvider, | ||
| ButtonStyleProviders, | ||
| } from './type'; | ||
|
|
||
| type ButtonElement = React.ReactElement<ButtonProps>; | ||
|
|
||
| interface ButtonGroupProps { | ||
| children: ButtonElement | ButtonElement[]; | ||
| size?: string; | ||
| } | ||
|
|
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| export type Props = ButtonGroupProps & StyledComponentProps & ViewProps; | ||
|
|
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| export class ButtonGroup extends React.Component<Props> { | ||
|
|
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| static defaultProps: Partial<Props> = { | ||
| size: 'medium', | ||
| }; | ||
|
|
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| private styleProvider: ButtonStyleProvider = ButtonStyleProviders.DEFAULT; | ||
|
|
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| private getComponentStyle = (style: StyleType): StyleType => { | ||
| const { button, ...container } = style; | ||
|
|
||
| return { | ||
| container: container, | ||
| button: button, | ||
| }; | ||
| }; | ||
|
|
||
| private getChildComponentStyle = (index: number, source: StyleType): StyleType => { | ||
| const { children } = this.props; | ||
|
|
||
| switch (index) { | ||
| case 0: | ||
| return this.styleProvider.start(source); | ||
| case React.Children.count(children) - 1: | ||
| return this.styleProvider.end(source); | ||
| default: | ||
| return this.styleProvider.center(source); | ||
| } | ||
| }; | ||
|
|
||
| private createComponentChild = (element: ButtonElement, index: number, style: StyleType): ButtonElement => { | ||
| const { appearance, size, children } = this.props; | ||
| const { style: elementStyle, ...derivedProps } = element.props; | ||
|
|
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| const isSingle: boolean = React.Children.count(children) === 1; | ||
| const positionedStyle: StyleType = isSingle ? style : this.getChildComponentStyle(index, style); | ||
|
|
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| return React.cloneElement(element, { | ||
| ...derivedProps, | ||
| style: [elementStyle, positionedStyle], | ||
| key: index, | ||
| appearance: appearance, | ||
| size: size, | ||
| }); | ||
| }; | ||
|
|
||
| private createComponentChildren = (source: ButtonElement | ButtonElement[], style: StyleType): ButtonElement[] => { | ||
| return React.Children.map(source, (element: ButtonElement, index: number): ButtonElement => { | ||
| return this.createComponentChild(element, index, style); | ||
| }); | ||
| }; | ||
|
|
||
| public render(): React.ReactElement<ViewProps> { | ||
| const { style, themedStyle, children, ...derivedProps } = this.props; | ||
| const { container, button } = this.getComponentStyle(themedStyle); | ||
|
|
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| const componentChildren: ButtonElement[] = this.createComponentChildren(children, button); | ||
|
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| return ( | ||
| <View | ||
| {...derivedProps} | ||
| style={[container, style, strictStyles.container]}> | ||
| {componentChildren} | ||
| </View> | ||
| ); | ||
| } | ||
| } | ||
|
|
||
| const strictStyles = StyleSheet.create({ | ||
| container: { | ||
| flexDirection: 'row', | ||
| }, | ||
| }); |
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