src/components/data-table-filters/data-table-filters-tree.tsx

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4
   5 import * as React from "react";
   6 import { Tree, toggleNodeSelection, getNode, initTreeNode, getNodeChildrenIds, selectNode, deselectNodes } from '~/models/tree';
   7 import { Tree as TreeComponent, TreeItem, TreeItemStatus } from '~/components/tree/tree';
   8 import { noop, map } from "lodash/fp";
   9 import { toggleNodeCollapse } from '~/models/tree';
  10 import { countNodes, countChildren } from '~/models/tree';
  11
  12 export interface DataTableFilterItem {
  13     name: string;
  14 }
  15
  16 export type DataTableFilters = Tree<DataTableFilterItem>;
  17
  18 export interface DataTableFilterProps {
  19     filters: DataTableFilters;
  20     onChange?: (filters: DataTableFilters) => void;
  21
  22     /**
  23      * When set to true, only one filter can be selected at a time.
  24      */
  25     mutuallyExclusive?: boolean;
  26 }
  27
  28 export class DataTableFiltersTree extends React.Component<DataTableFilterProps> {
  29
  30     render() {
  31         const { filters } = this.props;
  32         const hasSubfilters = countNodes(filters) !== countChildren('')(filters);
  33         return <TreeComponent
  34             levelIndentation={hasSubfilters ? 20 : 0}
  35             itemRightPadding={20}
  36             items={filtersToTree(filters)}
  37             render={renderItem}
  38             showSelection
  39             useRadioButtons={this.props.mutuallyExclusive}
  40             disableRipple
  41             onContextMenu={noop}
  42             toggleItemActive={
  43                 this.props.mutuallyExclusive
  44                     ? this.toggleRadioButtonFilter
  45                     : this.toggleFilter
  46             }
  47             toggleItemOpen={this.toggleOpen}
  48         />;
  49     }
  50
  51     /**
  52      * Handler for when a tree item is toggled via a radio button.
  53      * Ensures mutual exclusivity among filter tree items.
  54      */
  55     toggleRadioButtonFilter = (_: any, item: TreeItem<DataTableFilterItem>) => {
  56         const { onChange = noop } = this.props;
  57
  58         // If the filter is already selected, do nothing.
  59         if (item.selected) { return; }
  60
  61         // Otherwise select this node and deselect the others
  62         const filters = selectNode(item.id)(this.props.filters);
  63         const toDeselect = Object.keys(this.props.filters).filter((id) => (id !== item.id));
  64         onChange(deselectNodes(toDeselect)(filters));
  65     }
  66
  67     toggleFilter = (_: React.MouseEvent, item: TreeItem<DataTableFilterItem>) => {
  68         const { onChange = noop } = this.props;
  69         onChange(toggleNodeSelection(item.id)(this.props.filters));
  70     }
  71
  72     toggleOpen = (_: React.MouseEvent, item: TreeItem<DataTableFilterItem>) => {
  73         const { onChange = noop } = this.props;
  74         onChange(toggleNodeCollapse(item.id)(this.props.filters));
  75     }
  76 }
  77
  78 const renderItem = (item: TreeItem<DataTableFilterItem>) =>
  79     <span>{item.data.name}</span>;
  80
  81 const filterToTreeItem = (filters: DataTableFilters) =>
  82     (id: string): TreeItem<any> => {
  83         const node = getNode(id)(filters) || initTreeNode({ id: '', value: 'InvalidNode' });
  84         const items = getNodeChildrenIds(node.id)(filters)
  85             .map(filterToTreeItem(filters));
  86
  87         return {
  88             active: node.active,
  89             data: node.value,
  90             id: node.id,
  91             items: items.length > 0 ? items : undefined,
  92             open: node.expanded,
  93             selected: node.selected,
  94             status: TreeItemStatus.LOADED,
  95         };
  96     };
  97
  98 const filtersToTree = (filters: DataTableFilters): TreeItem<DataTableFilterItem>[] =>
  99     map(filterToTreeItem(filters), getNodeChildrenIds('')(filters));