@material-ui/lab
Version:
Material-UI Lab - Incubator for Material-UI React components.
381 lines (338 loc) • 11.7 kB
JavaScript
import _objectWithoutProperties from "@babel/runtime/helpers/esm/objectWithoutProperties";
import _extends from "@babel/runtime/helpers/esm/extends";
import * as React from 'react';
import clsx from 'clsx';
import PropTypes from 'prop-types';
import { elementTypeAcceptingRef } from '@material-ui/utils';
import Collapse from '@material-ui/core/Collapse';
import { alpha, withStyles } from '@material-ui/core/styles';
import { ownerDocument, useForkRef, unsupportedProp } from '@material-ui/core/utils';
import TreeViewContext from '../TreeView/TreeViewContext';
import { DescendantProvider, useDescendant } from '../TreeView/descendants';
import TreeItemContent from './TreeItemContent';
export var styles = function styles(theme) {
return {
/* Styles applied to the root element. */
root: {
listStyle: 'none',
margin: 0,
padding: 0,
outline: 0
},
/* Styles applied to the `role="group"` element. */
group: {
margin: 0,
padding: 0,
marginLeft: 17
},
/* Styles applied to the content element. */
content: {
padding: '0 8px',
width: '100%',
display: 'flex',
alignItems: 'center',
cursor: 'pointer',
WebkitTapHighlightColor: 'transparent',
'&:hover': {
backgroundColor: theme.palette.action.hover,
// Reset on touch devices, it doesn't add specificity
'@media (hover: none)': {
backgroundColor: 'transparent'
}
},
'&$disabled': {
opacity: theme.palette.action.disabledOpacity,
backgroundColor: 'transparent'
},
'&$focused': {
backgroundColor: theme.palette.action.focus
},
'&$selected': {
backgroundColor: alpha(theme.palette.primary.main, theme.palette.action.selectedOpacity),
'&:hover': {
backgroundColor: alpha(theme.palette.primary.main, theme.palette.action.selectedOpacity + theme.palette.action.hoverOpacity),
// Reset on touch devices, it doesn't add specificity
'@media (hover: none)': {
backgroundColor: alpha(theme.palette.primary.main, theme.palette.action.selectedOpacity)
}
},
'&$focused': {
backgroundColor: alpha(theme.palette.primary.main, theme.palette.action.selectedOpacity + theme.palette.action.focusOpacity)
}
}
},
/* Pseudo-class applied to the content element when expanded. */
expanded: {},
/* Pseudo-class applied to the content element when selected. */
selected: {},
/* Pseudo-class applied to the content element when focused. */
focused: {},
/* Pseudo-class applied to the element when disabled. */
disabled: {},
/* Styles applied to the tree node icon. */
iconContainer: {
marginRight: 4,
width: 15,
display: 'flex',
flexShrink: 0,
justifyContent: 'center',
'& svg': {
fontSize: 18
}
},
/* Styles applied to the label element. */
label: _extends({
width: '100%',
paddingLeft: 4,
position: 'relative'
}, theme.typography.body1)
};
};
var TreeItem = /*#__PURE__*/React.forwardRef(function TreeItem(props, ref) {
var children = props.children,
classes = props.classes,
className = props.className,
collapseIcon = props.collapseIcon,
_props$ContentCompone = props.ContentComponent,
ContentComponent = _props$ContentCompone === void 0 ? TreeItemContent : _props$ContentCompone,
ContentProps = props.ContentProps,
endIcon = props.endIcon,
expandIcon = props.expandIcon,
disabledProp = props.disabled,
icon = props.icon,
idProp = props.id,
label = props.label,
nodeId = props.nodeId,
onClick = props.onClick,
onMouseDown = props.onMouseDown,
_props$TransitionComp = props.TransitionComponent,
TransitionComponent = _props$TransitionComp === void 0 ? Collapse : _props$TransitionComp,
TransitionProps = props.TransitionProps,
other = _objectWithoutProperties(props, ["children", "classes", "className", "collapseIcon", "ContentComponent", "ContentProps", "endIcon", "expandIcon", "disabled", "icon", "id", "label", "nodeId", "onClick", "onMouseDown", "TransitionComponent", "TransitionProps"]);
var _React$useContext = React.useContext(TreeViewContext),
_React$useContext$ico = _React$useContext.icons,
contextIcons = _React$useContext$ico === void 0 ? {} : _React$useContext$ico,
focus = _React$useContext.focus,
isExpanded = _React$useContext.isExpanded,
isFocused = _React$useContext.isFocused,
isSelected = _React$useContext.isSelected,
isDisabled = _React$useContext.isDisabled,
multiSelect = _React$useContext.multiSelect,
disabledItemsFocusable = _React$useContext.disabledItemsFocusable,
mapFirstChar = _React$useContext.mapFirstChar,
unMapFirstChar = _React$useContext.unMapFirstChar,
registerNode = _React$useContext.registerNode,
unregisterNode = _React$useContext.unregisterNode,
treeId = _React$useContext.treeId;
var id = null;
if (idProp != null) {
id = idProp;
} else if (treeId && nodeId) {
id = "".concat(treeId, "-").concat(nodeId);
}
var _React$useState = React.useState(null),
treeitemElement = _React$useState[0],
setTreeitemElement = _React$useState[1];
var contentRef = React.useRef(null);
var handleRef = useForkRef(setTreeitemElement, ref);
var descendant = React.useMemo(function () {
return {
element: treeitemElement,
id: nodeId
};
}, [nodeId, treeitemElement]);
var _useDescendant = useDescendant(descendant),
index = _useDescendant.index,
parentId = _useDescendant.parentId;
var expandable = Boolean(Array.isArray(children) ? children.length : children);
var expanded = isExpanded ? isExpanded(nodeId) : false;
var focused = isFocused ? isFocused(nodeId) : false;
var selected = isSelected ? isSelected(nodeId) : false;
var disabled = isDisabled ? isDisabled(nodeId) : false;
var displayIcon;
var expansionIcon;
if (expandable) {
if (!expanded) {
expansionIcon = expandIcon || contextIcons.defaultExpandIcon;
} else {
expansionIcon = collapseIcon || contextIcons.defaultCollapseIcon;
}
}
if (expandable) {
displayIcon = contextIcons.defaultParentIcon;
} else {
displayIcon = endIcon || contextIcons.defaultEndIcon;
}
React.useEffect(function () {
// On the first render a node's index will be -1. We want to wait for the real index.
if (registerNode && unregisterNode && index !== -1) {
registerNode({
id: nodeId,
idAttribute: id,
index: index,
parentId: parentId,
expandable: expandable,
disabled: disabledProp
});
return function () {
unregisterNode(nodeId);
};
}
return undefined;
}, [registerNode, unregisterNode, parentId, index, nodeId, expandable, disabledProp, id]);
React.useEffect(function () {
if (mapFirstChar && unMapFirstChar && label) {
mapFirstChar(nodeId, contentRef.current.textContent.substring(0, 1).toLowerCase());
return function () {
unMapFirstChar(nodeId);
};
}
return undefined;
}, [mapFirstChar, unMapFirstChar, nodeId, label]);
var ariaSelected;
if (multiSelect) {
ariaSelected = selected;
} else if (selected) {
/* single-selection trees unset aria-selected on un-selected items.
*
* If the tree does not support multiple selection, aria-selected
* is set to true for the selected node and it is not present on any other node in the tree.
* Source: https://www.w3.org/TR/wai-aria-practices/#TreeView
*/
ariaSelected = true;
}
function handleFocus(event) {
// DOM focus stays on the tree which manages focus with aria-activedescendant
if (event.target === event.currentTarget) {
ownerDocument(event.target).getElementById(treeId).focus();
}
var unfocusable = !disabledItemsFocusable && disabled;
if (!focused && event.currentTarget === event.target && !unfocusable) {
focus(event, nodeId);
}
}
return /*#__PURE__*/React.createElement("li", _extends({
className: clsx(classes.root, className),
role: "treeitem",
"aria-expanded": expandable ? expanded : null,
"aria-selected": ariaSelected,
"aria-disabled": disabled || null,
ref: handleRef,
id: id,
tabIndex: -1
}, other, {
onFocus: handleFocus
}), /*#__PURE__*/React.createElement(ContentComponent, _extends({
ref: contentRef,
classes: {
root: classes.content,
expanded: classes.expanded,
selected: classes.selected,
focused: classes.focused,
disabled: classes.disabled,
iconContainer: classes.iconContainer,
label: classes.label
},
label: label,
nodeId: nodeId,
onClick: onClick,
onMouseDown: onMouseDown,
icon: icon,
expansionIcon: expansionIcon,
displayIcon: displayIcon
}, ContentProps)), children && /*#__PURE__*/React.createElement(DescendantProvider, {
id: nodeId
}, /*#__PURE__*/React.createElement(TransitionComponent, _extends({
unmountOnExit: true,
className: classes.group,
in: expanded,
component: "ul",
role: "group"
}, TransitionProps), children)));
});
process.env.NODE_ENV !== "production" ? TreeItem.propTypes = {
// ----------------------------- Warning --------------------------------
// | These PropTypes are generated from the TypeScript type definitions |
// | To update them edit the d.ts file and run "yarn proptypes" |
// ----------------------------------------------------------------------
/**
* The content of the component.
*/
children: PropTypes.node,
/**
* Override or extend the styles applied to the component.
*/
classes: PropTypes.object,
/**
* @ignore
*/
className: PropTypes.string,
/**
* The icon used to collapse the node.
*/
collapseIcon: PropTypes.node,
/**
* The component used for the content node.
* @default TreeItemContent
*/
ContentComponent: elementTypeAcceptingRef,
/**
* Props applied to ContentComponent
*/
ContentProps: PropTypes.object,
/**
* If `true`, the node is disabled.
*/
disabled: PropTypes.bool,
/**
* The icon displayed next to a end node.
*/
endIcon: PropTypes.node,
/**
* The icon used to expand the node.
*/
expandIcon: PropTypes.node,
/**
* The icon to display next to the tree node's label.
*/
icon: PropTypes.node,
/**
* @ignore
*/
id: PropTypes.string,
/**
* The tree node label.
*/
label: PropTypes.node,
/**
* The id of the node.
*/
nodeId: PropTypes.string.isRequired,
/**
* @ignore
*/
onClick: PropTypes.func,
/**
* This prop isn't supported.
* Use the `onNodeFocus` callback on the tree if you need to monitor a node's focus.
*/
onFocus: unsupportedProp,
/**
* @ignore
*/
onMouseDown: PropTypes.func,
/**
* The component used for the transition.
* [Follow this guide](/components/transitions/#transitioncomponent-prop) to learn more about the requirements for this component.
* @default Collapse
*/
TransitionComponent: PropTypes.elementType,
/**
* Props applied to the transition element.
* By default, the element is based on this [`Transition`](http://reactcommunity.org/react-transition-group/transition) component.
*/
TransitionProps: PropTypes.object
} : void 0;
export default withStyles(styles, {
name: 'MuiTreeItem'
})(TreeItem);