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//@flow
import * as React from "react";
import cn from "classnames";
import NavItem from "./NavItem.react";
import NavLink from "./NavLink.react";
import NavSubItem from "./NavSubItem.react";
import NavSubmenu from "./NavSubmenu.react";
import NavSubmenuItem from "./NavSubmenuItem.react";
export type subNavItem = {|
+value: string,
+to?: string,
+icon?: string,
+LinkComponent?: React.ElementType,
+useExact?: boolean,
|};
type navItem = {|
+value: string,
+to?: string,
+icon?: string,
+active?: boolean,
+LinkComponent?: React.ElementType,
+subItems?: Array<subNavItem>,
+useExact?: boolean,
|};
type Props = {|
+children?: React.Node,
+className?: string,
+tabbed?: boolean,
// eslint-disable-next-line no-use-before-define
+items?: React.ChildrenArray<React.Element<typeof Nav.Item>>,
+itemsObjects?: Array<navItem>,
+routerContextComponentType?: React.ElementType,
|};
type State = {|
pathName: ?string,
|};
class Nav extends React.Component<Props, State> {
state = {
pathName: null,
};
static Item = NavItem;
static SubItem = NavSubItem;
static Link = NavLink;
static Submenu = NavSubmenu;
static SubmenuItem = NavSubmenuItem;
routerCallback = (location: { pathname: string }): void => {
this.setState({ pathName: location.pathname });
};
computeActive(
initialValue?: boolean,
to?: string,
subItems?: Array<subNavItem>
): boolean {
const { pathName } = this.state;
if (
initialValue !== null &&
initialValue !== undefined &&
initialValue === true
) {
return true;
}
if (to !== null && to !== undefined && to === pathName) {
return true;
}
if (subItems !== null && subItems !== undefined) {
if (
subItems.find(
item =>
item.to !== null && item.to !== undefined && item.to === pathName
)
) {
return true;
}
}
return false;
}
render(): React.Node {
const {
className,
children,
tabbed = true,
items,
itemsObjects,
routerContextComponentType,
} = this.props;
const classes = cn({ nav: true, "nav-tabs": tabbed }, className);
let element: ?React.Element<*> = null;
if (routerContextComponentType) {
let createFactory = type => React.createElement.bind(null, type);
const routerContextComponentFactory = createFactory(
routerContextComponentType
);
element = routerContextComponentFactory({
callback: this.routerCallback,
});
}
return (
<React.Fragment>
{element}
<ul className={classes}>
{items ||
(itemsObjects &&
itemsObjects.map((a, i) => (
<Nav.Item
key={i}
icon={a.icon}
value={a.value}
to={a.to}
hasSubNav={!!a.subItems}
LinkComponent={a.LinkComponent}
subItemsObjects={a.subItems}
active={this.computeActive(a.active, a.to, a.subItems)}
useExact={a.useExact}
/>
))) ||
children}
</ul>
</React.Fragment>
);
}
}
//Nav.Item = NavItem;
export default Nav;
|