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DropdownMenuItem.tsx
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DropdownMenuItem.tsx
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import React, { forwardRef, ReactNode } from "react";
import { IconRotator, useIcon } from "@react-md/icon";
import { BELOW_INNER_RIGHT_ANCHOR, TOP_RIGHT_ANCHOR } from "@react-md/utils";
import { defaultMenuItemRenderer } from "./defaultMenuItemRenderer";
import { defaultMenuRenderer } from "./defaultMenuRenderer";
import { BaseDropdownMenuProps } from "./DropdownMenu";
import { MenuItem, MenuItemProps } from "./MenuItem";
import { useItemVisibility } from "./useItemVisibility";
export interface DropdownMenuItemProps
extends Omit<MenuItemProps, "id">,
BaseDropdownMenuProps {
/**
* The icon to show after the children in the button when the `buttonType` is
* not set to `"icon"`.
*/
dropdownIcon?: ReactNode;
/**
* Boolean if the dropdown icon should be removed from the button. The icon
* will always be removed for icon buttons.
*/
disableDropdownIcon?: boolean;
/**
* The default behavior of the dropdown menu is to close when the escape key
* is pressed. Now that there are multiple nested menus, this will actually
* close **all** of them by default. If this is undesired behavior, you can
* enable this prop which will make sure only the top-level dropdown menu will
* be closed.
*/
disableEscapeCascade?: boolean;
}
/**
* The `DropdownMenuItem` component is used to be able to render nested dropdown menus.
*/
export const DropdownMenuItem = forwardRef<
HTMLLIElement,
DropdownMenuItemProps
>(function DropdownMenuItem(
{
onClick: propOnClick,
onKeyDown: propOnKeyDown,
children,
anchor: propAnchor,
menuLabel,
menuLabelledBy,
menuRenderer = defaultMenuRenderer,
items,
itemRenderer = defaultMenuItemRenderer,
horizontal,
onVisibilityChange,
portal = true,
portalInto,
portalIntoId,
positionOptions,
rightAddon: propRightAddon,
dropdownIcon: propDropdownIcon,
closeOnScroll = false,
closeOnResize = false,
disableEscapeCascade = false,
disableDropdownIcon = false,
...props
},
ref
) {
const { id } = props;
const dropdownIcon = useIcon("forward", propDropdownIcon);
const { visible, hide, onClick, onKeyDown, defaultFocus } = useItemVisibility(
{
onClick: propOnClick,
onKeyDown: propOnKeyDown,
onVisibilityChange,
}
);
let labelledBy = menuLabelledBy;
if (!menuLabel && !menuLabelledBy) {
labelledBy = id;
}
let rightAddon = propRightAddon;
if (!disableDropdownIcon && dropdownIcon && !rightAddon) {
rightAddon = <IconRotator rotated={visible}>{dropdownIcon}</IconRotator>;
}
let anchor = propAnchor;
if (!anchor) {
anchor = horizontal ? BELOW_INNER_RIGHT_ANCHOR : TOP_RIGHT_ANCHOR;
}
return (
<>
<MenuItem
{...props}
ref={ref}
aria-haspopup="menu"
aria-expanded={visible ? "true" : undefined}
role="button"
onClick={onClick}
onKeyDown={onKeyDown}
rightAddon={rightAddon}
>
{children}
</MenuItem>
{menuRenderer(
{
"aria-label": menuLabel,
// ok to typecast since one of these two should be a string by this
// line
"aria-labelledby": labelledBy as string,
id: `${id}-menu`,
controlId: id,
anchor,
positionOptions,
closeOnScroll,
closeOnResize,
horizontal,
visible,
defaultFocus,
onRequestClose: hide,
children: items.map((item, i) => itemRenderer(item, `item-${i}`)),
portal,
portalInto,
portalIntoId,
onKeyDown(event) {
if (event.key !== "Escape" || disableEscapeCascade) {
// don't want parent keydown listeners to be triggered as well
event.stopPropagation();
}
if (!horizontal && event.key === "ArrowLeft") {
hide();
}
},
},
items
)}
</>
);
});
/* istanbul ignore next */
if (process.env.NODE_ENV !== "production") {
try {
const PropTypes = require("prop-types");
DropdownMenuItem.propTypes = {
id: PropTypes.string.isRequired,
className: PropTypes.string,
portal: PropTypes.bool,
portalInto: PropTypes.oneOfType([
PropTypes.string,
PropTypes.func,
PropTypes.object,
]),
portalIntoId: PropTypes.string,
onClick: PropTypes.func,
onKeyDown: PropTypes.func,
children: PropTypes.node,
anchor: PropTypes.shape({
x: PropTypes.oneOf([
"left",
"right",
"center",
"inner-left",
"inner-right",
]).isRequired,
y: PropTypes.oneOf(["above", "below", "center", "top", "bottom"])
.isRequired,
}),
items: PropTypes.arrayOf(
PropTypes.oneOfType([
PropTypes.string,
PropTypes.number,
PropTypes.node,
PropTypes.object,
])
).isRequired,
menuLabel: PropTypes.string,
menuLabelledBy: PropTypes.string,
menuRenderer: PropTypes.func,
itemRenderer: PropTypes.func,
dropdownIcon: PropTypes.node,
horizontal: PropTypes.bool,
positionOptions: PropTypes.shape({
vwMargin: PropTypes.number,
vhMargin: PropTypes.number,
xMargin: PropTypes.number,
yMargin: PropTypes.number,
initialX: PropTypes.number,
initialY: PropTypes.number,
disableSwapping: PropTypes.bool,
}),
rightAddon: PropTypes.node,
onVisibilityChange: PropTypes.func,
disableDropdownIcon: PropTypes.bool,
disableEscapeCascade: PropTypes.bool,
closeOnScroll: PropTypes.bool,
closeOnResize: PropTypes.bool,
};
} catch (e) {}
}