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ButtonWithDropdownMenu.js
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ButtonWithDropdownMenu.js
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import PropTypes from 'prop-types';
import React, {useEffect, useRef, useState} from 'react';
import {View} from 'react-native';
import _ from 'underscore';
import useWindowDimensions from '@hooks/useWindowDimensions';
import styles from '@styles/styles';
import * as StyleUtils from '@styles/StyleUtils';
import themeColors from '@styles/themes/default';
import CONST from '@src/CONST';
import Button from './Button';
import Icon from './Icon';
import * as Expensicons from './Icon/Expensicons';
import PopoverMenu from './PopoverMenu';
const propTypes = {
/** Text to display for the menu header */
menuHeaderText: PropTypes.string,
/** Callback to execute when the main button is pressed */
onPress: PropTypes.func.isRequired,
/** Call the onPress function on main button when Enter key is pressed */
pressOnEnter: PropTypes.bool,
/** Whether we should show a loading state for the main button */
isLoading: PropTypes.bool,
/** The size of button size */
buttonSize: PropTypes.oneOf(_.values(CONST.DROPDOWN_BUTTON_SIZE)),
/** Should the confirmation button be disabled? */
isDisabled: PropTypes.bool,
/** Additional styles to add to the component */
style: PropTypes.oneOfType([PropTypes.arrayOf(PropTypes.object), PropTypes.object]),
/** Menu options to display */
/** e.g. [{text: 'Pay with Expensify', icon: Wallet}] */
options: PropTypes.arrayOf(
PropTypes.shape({
value: PropTypes.string.isRequired,
text: PropTypes.string.isRequired,
icon: PropTypes.elementType,
iconWidth: PropTypes.number,
iconHeight: PropTypes.number,
iconDescription: PropTypes.string,
}),
).isRequired,
/** The anchor alignment of the popover menu */
anchorAlignment: PropTypes.shape({
horizontal: PropTypes.oneOf(_.values(CONST.MODAL.ANCHOR_ORIGIN_HORIZONTAL)),
vertical: PropTypes.oneOf(_.values(CONST.MODAL.ANCHOR_ORIGIN_VERTICAL)),
}),
/* ref for the button */
buttonRef: PropTypes.oneOfType([PropTypes.func, PropTypes.object]),
};
const defaultProps = {
isLoading: false,
isDisabled: false,
pressOnEnter: false,
menuHeaderText: '',
style: [],
buttonSize: CONST.DROPDOWN_BUTTON_SIZE.MEDIUM,
anchorAlignment: {
horizontal: CONST.MODAL.ANCHOR_ORIGIN_HORIZONTAL.RIGHT,
vertical: CONST.MODAL.ANCHOR_ORIGIN_VERTICAL.TOP, // we assume that popover menu opens below the button, anchor is at TOP
},
buttonRef: () => {},
};
function ButtonWithDropdownMenu(props) {
const [selectedItemIndex, setSelectedItemIndex] = useState(0);
const [isMenuVisible, setIsMenuVisible] = useState(false);
const [popoverAnchorPosition, setPopoverAnchorPosition] = useState(null);
const {windowWidth, windowHeight} = useWindowDimensions();
const caretButton = useRef(null);
const selectedItem = props.options[selectedItemIndex];
const innerStyleDropButton = StyleUtils.getDropDownButtonHeight(props.buttonSize);
const isButtonSizeLarge = props.buttonSize === CONST.DROPDOWN_BUTTON_SIZE.LARGE;
useEffect(() => {
if (!caretButton.current) {
return;
}
if (!isMenuVisible) {
return;
}
caretButton.current.measureInWindow((x, y, w, h) => {
setPopoverAnchorPosition({
horizontal: x + w,
vertical:
props.anchorAlignment.vertical === CONST.MODAL.ANCHOR_ORIGIN_VERTICAL.TOP
? y + h + CONST.MODAL.POPOVER_MENU_PADDING // if vertical anchorAlignment is TOP, menu will open below the button and we need to add the height of button and padding
: y - CONST.MODAL.POPOVER_MENU_PADDING, // if it is BOTTOM, menu will open above the button so NO need to add height but DO subtract padding
});
});
}, [windowWidth, windowHeight, isMenuVisible, props.anchorAlignment.vertical]);
return (
<View>
{props.options.length > 1 ? (
<View style={[styles.flexRow, styles.justifyContentBetween, styles.alignItemsCenter, ...props.style]}>
<Button
success
pressOnEnter={props.pressOnEnter}
ref={props.buttonRef}
onPress={(event) => props.onPress(event, selectedItem.value)}
text={selectedItem.text}
isDisabled={props.isDisabled}
isLoading={props.isLoading}
shouldRemoveRightBorderRadius
style={[styles.flex1, styles.pr0]}
large={isButtonSizeLarge}
medium={!isButtonSizeLarge}
innerStyles={[innerStyleDropButton]}
/>
<Button
ref={caretButton}
success
isDisabled={props.isDisabled}
style={[styles.pl0]}
onPress={() => setIsMenuVisible(!isMenuVisible)}
shouldRemoveLeftBorderRadius
large={isButtonSizeLarge}
medium={!isButtonSizeLarge}
innerStyles={[styles.dropDownButtonCartIconContainerPadding, innerStyleDropButton]}
>
<View style={[styles.dropDownButtonCartIconView, innerStyleDropButton]}>
<View style={[styles.buttonDivider]} />
<View style={[styles.dropDownButtonArrowContain]}>
<Icon
src={Expensicons.DownArrow}
fill={themeColors.textLight}
/>
</View>
</View>
</Button>
</View>
) : (
<Button
success
ref={props.buttonRef}
pressOnEnter={props.pressOnEnter}
isDisabled={props.isDisabled}
style={[styles.w100, ...props.style]}
isLoading={props.isLoading}
text={selectedItem.text}
onPress={(event) => props.onPress(event, props.options[0].value)}
large={isButtonSizeLarge}
medium={!isButtonSizeLarge}
innerStyles={[innerStyleDropButton]}
/>
)}
{props.options.length > 1 && !_.isEmpty(popoverAnchorPosition) && (
<PopoverMenu
isVisible={isMenuVisible}
onClose={() => setIsMenuVisible(false)}
onItemSelected={() => setIsMenuVisible(false)}
anchorPosition={popoverAnchorPosition}
anchorRef={caretButton}
withoutOverlay
anchorAlignment={props.anchorAlignment}
headerText={props.menuHeaderText}
menuItems={_.map(props.options, (item, index) => ({
...item,
onSelected: () => {
setSelectedItemIndex(index);
},
}))}
/>
)}
</View>
);
}
ButtonWithDropdownMenu.propTypes = propTypes;
ButtonWithDropdownMenu.defaultProps = defaultProps;
ButtonWithDropdownMenu.displayName = 'ButtonWithDropdownMenu';
export default React.memo(ButtonWithDropdownMenu);