import { ReactElement } from "react";
import Collapse from "@material-ui/core/Collapse/Collapse";
import CircularProgress from '@material-ui/core/CircularProgress';
-import { inherits } from 'util';
-
-type CssRules = 'list' | 'activeArrow' | 'inactiveArrow' | 'arrowRotate' | 'arrowTransition' | 'loader' | 'arrowVisibility';
-
-const styles: StyleRulesCallback<CssRules> = (theme: Theme) => ({
- list: {
- paddingBottom: '3px',
- paddingTop: '3px',
- },
- activeArrow: {
- color: '#4285F6',
- position: 'absolute',
- },
- inactiveArrow: {
- position: 'absolute',
- },
- arrowTransition: {
- transition: 'all 0.1s ease',
- },
- arrowRotate: {
- transition: 'all 0.1s ease',
- transform: 'rotate(-90deg)',
- },
- arrowVisibility: {
- opacity: 0,
- },
- loader: {
- position: 'absolute',
- transform: 'translate(0px)',
- top: '3px'
- }
-});
export enum TreeItemStatus {
Initial,
interface TreeProps<T> {
items?: Array<TreeItem<T>>;
render: (item: TreeItem<T>, level?: number) => ReactElement<{}>;
- toggleItem: (id: string, status: TreeItemStatus) => any;
+ toggleItemOpen: (id: string, status: TreeItemStatus) => void;
+ toggleItemActive: (id: string, status: TreeItemStatus) => void;
level?: number;
}
class Tree<T> extends React.Component<TreeProps<T> & WithStyles<CssRules>, {}> {
renderArrow(status: TreeItemStatus, arrowClass: string, open: boolean, id: string) {
- return <i
- onClick={() => this.props.toggleItem(id, status)}
+ const { arrowTransition, arrowVisibility, arrowRotate } = this.props.classes;
+ return <i onClick={() => this.props.toggleItemOpen(id, status)}
className={`
- ${arrowClass}
- ${status === TreeItemStatus.Pending ? this.props.classes.arrowVisibility : ''}
- ${open ? `fas fa-caret-down ${this.props.classes.arrowTransition}` : `fas fa-caret-down ${this.props.classes.arrowRotate}`}`} />;
+ ${arrowClass}
+ ${status === TreeItemStatus.Pending ? arrowVisibility : ''}
+ ${open ? `fas fa-caret-down ${arrowTransition}` : `fas fa-caret-down ${arrowRotate}`}`} />;
}
render(): ReactElement<any> {
const level = this.props.level ? this.props.level : 0;
- const { classes, render, toggleItem, items } = this.props;
+ const { classes, render, toggleItemOpen, items, toggleItemActive } = this.props;
const { list, inactiveArrow, activeArrow, loader } = classes;
return <List component="div" className={list}>
{items && items.map((it: TreeItem<T>, idx: number) =>
<div key={`item/${level}/${idx}`}>
- <ListItem button className={list} style={{ paddingLeft: (level + 1) * 20 }}>
+ <ListItem button className={list} style={{ paddingLeft: (level + 1) * 20 }} onClick={() => toggleItemActive(it.id, it.status)}>
{it.status === TreeItemStatus.Pending ? <CircularProgress size={10} className={loader} /> : null}
{it.toggled && it.items && it.items.length === 0 ? null : this.renderArrow(it.status, it.active ? activeArrow : inactiveArrow, it.open, it.id)}
{render(it, level)}
<StyledTree
items={it.items}
render={render}
- toggleItem={toggleItem}
+ toggleItemOpen={toggleItemOpen}
+ toggleItemActive={toggleItemActive}
level={level + 1} />
</Collapse>}
</div>)}
}
}
+type CssRules = 'list' | 'activeArrow' | 'inactiveArrow' | 'arrowRotate' | 'arrowTransition' | 'loader' | 'arrowVisibility';
+
+const styles: StyleRulesCallback<CssRules> = (theme: Theme) => ({
+ list: {
+ paddingBottom: '3px',
+ paddingTop: '3px',
+ },
+ activeArrow: {
+ color: '#4285F6',
+ position: 'absolute',
+ },
+ inactiveArrow: {
+ position: 'absolute',
+ },
+ arrowTransition: {
+ transition: 'all 0.1s ease',
+ },
+ arrowRotate: {
+ transition: 'all 0.1s ease',
+ transform: 'rotate(-90deg)',
+ },
+ arrowVisibility: {
+ opacity: 0,
+ },
+ loader: {
+ position: 'absolute',
+ transform: 'translate(0px)',
+ top: '3px'
+ }
+});
+
const StyledTree = withStyles(styles)(Tree);
export default StyledTree;