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20 changes: 10 additions & 10 deletions packages/react/src/TreeView/TreeView.docs.json
Original file line numberDiff line numberDiff line change
Expand Up@@ -22,11 +22,6 @@
"name": "flat",
"type": "boolean",
"description": "Prevents the tree from indenting items. This should only be used when the tree is used to display a flat list of items."
},
{
"name": "dragAndDrop",
"type": "boolean",
"description": "Updates the css grid of the tree to have space to render the drag handle. This is currently only used for drag and drop in subissues."
}
],
"subcomponents": [
Expand DownExpand Up@@ -77,11 +72,6 @@
{
"name": "ref",
"type": "React.Ref<HTMLElement>"
},
{
"name": "dragHandle",
"type": "ReactElement",
"description": "The trigger button that activates the drag and drop of the TreeView.Item. Consumer also needs to pass `dragAndDrop` prop to TreeView so dragHandle is rendered in the correct position."
}
]
},
Expand DownExpand Up@@ -115,6 +105,16 @@
}
]
},
{
"name": "TreeView.LeadingAction",
"props": [
{
"name": "children",
"required": true,
"type": "React.ReactNode"
}
]
},
{
"name": "TreeView.DirectoryIcon",
"props": []
Expand Down
132 changes: 49 additions & 83 deletions packages/react/src/TreeView/TreeView.features.stories.tsx
Original file line numberDiff line numberDiff line change
Expand Up@@ -6,6 +6,8 @@ import {
FileIcon,
GrabberIcon,
KebabHorizontalIcon,
IssueClosedIcon,
IssueOpenedIcon,
} from '@primer/octicons-react'
import type {Meta, Story} from '@storybook/react'
import React from 'react'
Expand DownExpand Up@@ -696,89 +698,6 @@ export const NestedTrees: Story = () => {
)
}

export const WithDragHandle: Story = () => {
const dragHandle = (
<IconButton sx={{p: 1, cursor: 'grab', mr: 1}} aria-label={`Move`} variant="invisible" icon={GrabberIcon} />
)

const [isLoading, setIsLoading] = React.useState(false)
const [asyncItems, setAsyncItems] = React.useState<string[]>([])

let state: SubTreeState = 'initial'

if (isLoading) {
state = 'loading'
} else if (asyncItems.length > 0) {
state = 'done'
}

return (
<nav aria-label="Files">
<TreeView aria-label="Files" dragAndDrop>
<TreeView.Item id="file-1" dragHandle={dragHandle}>
<TreeView.LeadingVisual>
<FileIcon />
</TreeView.LeadingVisual>
Some file
</TreeView.Item>
<TreeView.Item
id="async-directory"
dragHandle={dragHandle}
onExpandedChange={async isExpanded => {
if (asyncItems.length === 0 && isExpanded) {
setIsLoading(true)

// Load items
const items = await loadItems(1000)

setIsLoading(false)
setAsyncItems(items)
}
}}
>
<TreeView.LeadingVisual>
<TreeView.DirectoryIcon />
</TreeView.LeadingVisual>
Directory with async items
<TreeView.SubTree state={state}>
{asyncItems.map(item => (
<TreeView.Item id={`item-${item}`} key={item}>
<TreeView.LeadingVisual>
<FileIcon />
</TreeView.LeadingVisual>
{item}
</TreeView.Item>
))}
<TreeView.Item id="nested-directory">
Nested Sub-tree
<TreeView.SubTree state="done">
<TreeView.Item id="nested-directory/file-1">
<TreeView.LeadingVisual>
<FileIcon />
</TreeView.LeadingVisual>
Some file
</TreeView.Item>
<TreeView.Item id="nested-directory/another-file">
<TreeView.LeadingVisual>
<FileIcon />
</TreeView.LeadingVisual>
Another file
</TreeView.Item>
</TreeView.SubTree>
</TreeView.Item>
</TreeView.SubTree>
</TreeView.Item>
<TreeView.Item id="another-file" dragHandle={dragHandle}>
<TreeView.LeadingVisual>
<FileIcon />
</TreeView.LeadingVisual>
Another file
</TreeView.Item>
</TreeView>
</nav>
)
}

export const NestedScrollContainer: Story = () => {
return (
<Box sx={{maxHeight: '50vh', overflow: 'auto'}}>
Expand DownExpand Up@@ -1073,4 +992,51 @@ export const WithoutIndentation: Story = () => (
</nav>
)

export const WithLeadingAction: Story = () => {
// todo: implement fold on click
// todo: implement hide until hovered
// todo: check if draggy boi should be aria-hidden
const dragAction = <IconButton aria-label="Reorder item" variant="invisible" icon={GrabberIcon} />

return (
<TreeView aria-label="Issues">
<TreeView.Item id="item-0">
<TreeView.LeadingAction>{dragAction}</TreeView.LeadingAction>
<TreeView.LeadingVisual>
<Octicon icon={IssueClosedIcon} sx={{color: 'done.fg'}} />
</TreeView.LeadingVisual>
Item 1
</TreeView.Item>
<TreeView.Item id="item-2">
<TreeView.LeadingAction>{dragAction}</TreeView.LeadingAction>
<TreeView.LeadingVisual>
<Octicon icon={IssueOpenedIcon} sx={{color: 'open.fg'}} />
</TreeView.LeadingVisual>
Item 2
<TreeView.SubTree>
<TreeView.Item id="item-2-sub-task-1">
<TreeView.LeadingVisual>
<Octicon icon={IssueOpenedIcon} sx={{color: 'open.fg'}} />
</TreeView.LeadingVisual>
sub task 1
</TreeView.Item>
<TreeView.Item id="item-2-sub-task-2">
<TreeView.LeadingVisual>
<Octicon icon={IssueOpenedIcon} sx={{color: 'open.fg'}} />
</TreeView.LeadingVisual>
sub task 2
</TreeView.Item>
</TreeView.SubTree>
</TreeView.Item>
<TreeView.Item id="item-3">
<TreeView.LeadingAction>{dragAction}</TreeView.LeadingAction>
<TreeView.LeadingVisual>
<Octicon icon={IssueOpenedIcon} sx={{color: 'open.fg'}} />
</TreeView.LeadingVisual>
Item 3
</TreeView.Item>
</TreeView>
)
}

export default meta
13 changes: 0 additions & 13 deletions packages/react/src/TreeView/TreeView.test.tsx
Original file line numberDiff line numberDiff line change
Expand Up@@ -319,19 +319,6 @@ describe('Markup', () => {
const item1 = getByRole('treeitem', {name: /Item 1/})
expect(item1).toHaveFocus()
})

it("should have 'data-drag-and-drop' attribute when dragAndDrop is passed to TreeView", () => {
const {queryByRole} = renderWithTheme(
<TreeView aria-label="Test tree" dragAndDrop>
<TreeView.Item id="item-1">Item 1</TreeView.Item>
<TreeView.Item id="item-2">Item 2</TreeView.Item>
<TreeView.Item id="item-3">Item 3</TreeView.Item>
</TreeView>,
)

const root = queryByRole('tree')
expect(root).toHaveAttribute('data-drag-and-drop')
})
})

describe('Keyboard interactions', () => {
Expand Down
66 changes: 32 additions & 34 deletions packages/react/src/TreeView/TreeView.tsx
Original file line numberDiff line numberDiff line change
Expand Up@@ -5,7 +5,7 @@ import {
FileDirectoryOpenFillIcon,
} from '@primer/octicons-react'
import clsx from 'clsx'
import React, {useCallback, useEffect, type ReactElement} from 'react'
import React, {useCallback, useEffect} from 'react'
import styled, {keyframes} from 'styled-components'
import {ConfirmationDialog} from '../ConfirmationDialog/ConfirmationDialog'
import Spinner from '../Spinner'
Expand DownExpand Up@@ -65,7 +65,6 @@ export type TreeViewProps = {
children: React.ReactNode
flat?: boolean
className?: string
dragAndDrop?: boolean
}

const UlBox = styled.ul<SxProp>`
Expand DownExpand Up@@ -98,15 +97,20 @@ const UlBox = styled.ul<SxProp>`
outline-offset: -2;
}
}
&[data-has-leading-action] {
--has-leading-action: 1;
}
}

.PRIVATE_TreeView-item-container {
--level: 1; /* default level */
--toggle-width: 1rem; /* 16px */
position: relative;
display: grid;
grid-template-columns: calc(calc(var(--level) - 1) * (var(--toggle-width) / 2)) var(--toggle-width) 1fr;
grid-template-areas: 'spacer toggle content';
--leading-action-width: calc(var(--has-leading-action, 0) * 1.5rem);
--spacer-width: calc(calc(var(--level) - 1) * (var(--toggle-width) / 2));
grid-template-columns: var(--spacer-width) var(--leading-action-width) var(--toggle-width) 1fr;
grid-template-areas: 'spacer leadingAction toggle content';
width: 100%;
min-height: 2rem; /* 32px */
font-size: ${get('fontSizes.1')};
Expand All@@ -121,10 +125,6 @@ const UlBox = styled.ul<SxProp>`
outline: 2px solid transparent;
outline-offset: -2px;
}

.PRIVATE_TreeView-item-drag-handle {
visibility: visible;
}
}

@media (pointer: coarse) {
Expand All@@ -143,21 +143,7 @@ const UlBox = styled.ul<SxProp>`
}

&[data-omit-spacer='true'] .PRIVATE_TreeView-item-container {
grid-template-columns: 0 0 1fr;
}

&[data-drag-and-drop='true'] .PRIVATE_TreeView-item-container {
grid-template-columns: 1.5rem calc(calc(var(--level) - 1) * (var(--toggle-width) / 2)) var(--toggle-width) 1fr;
grid-template-areas: 'drag spacer toggle content';
}

.PRIVATE_TreeView-item-drag-handle {
grid-area: drag;
height: 100%;
visibility: hidden;
display: flex;
align-items: center;
justify-content: center;
grid-template-columns: 0 0 0 1fr;
}

.PRIVATE_TreeView-item[aria-current='true'] > .PRIVATE_TreeView-item-container {
Expand DownExpand Up@@ -221,6 +207,12 @@ const UlBox = styled.ul<SxProp>`
color: ${get('colors.fg.muted')};
}

.PRIVATE_TreeView-item-leading-action {
display: flex;
color: ${get('colors.fg.muted')};
grid-area: 'leadingAction';
}

.PRIVATE_TreeView-item-level-line {
width: 100%;
height: 100%;
Expand DownExpand Up@@ -276,7 +268,6 @@ const Root: React.FC<TreeViewProps> = ({
children,
flat,
className,
dragAndDrop,
}) => {
const containerRef = React.useRef<HTMLUListElement>(null)
const mouseDownRef = React.useRef<boolean>(false)
Expand DownExpand Up@@ -332,7 +323,6 @@ const Root: React.FC<TreeViewProps> = ({
aria-label={ariaLabel}
aria-labelledby={ariaLabelledby}
data-omit-spacer={flat}
data-drag-and-drop={dragAndDrop}
onMouseDown={onMouseDown}
className={className}
>
Expand All@@ -358,7 +348,6 @@ export type TreeViewItemProps = {
onExpandedChange?: (expanded: boolean) => void
onSelect?: (event: React.MouseEvent<HTMLElement> | React.KeyboardEvent<HTMLElement>) => void
className?: string
dragHandle?: ReactElement
}

const Item = React.forwardRef<HTMLElement, TreeViewItemProps>(
Expand All@@ -373,11 +362,14 @@ const Item = React.forwardRef<HTMLElement, TreeViewItemProps>(
onSelect,
children,
className,
dragHandle,
},
ref,
) => {
const [slots, rest] = useSlots(children, {leadingVisual: LeadingVisual, trailingVisual: TrailingVisual})
const [slots, rest] = useSlots(children, {
leadingAction: LeadingAction,
leadingVisual: LeadingVisual,
trailingVisual: TrailingVisual,
})
const {expandedStateCache} = React.useContext(RootContext)
const labelId = useId()
const leadingVisualId = useId()
Expand DownExpand Up@@ -472,6 +464,7 @@ const Item = React.forwardRef<HTMLElement, TreeViewItemProps>(
aria-expanded={isSubTreeEmpty ? undefined : isExpanded}
aria-current={isCurrentItem ? 'true' : undefined}
aria-selected={isFocused ? 'true' : 'false'}
data-has-leading-action={slots.leadingAction ? true : undefined}
onKeyDown={handleKeyDown}
onFocus={event => {
// Scroll the first child into view when the item receives focus
Expand DownExpand Up@@ -511,12 +504,7 @@ const Item = React.forwardRef<HTMLElement, TreeViewItemProps>(
<div style={{gridArea: 'spacer', display: 'flex'}}>
<LevelIndicatorLines level={level} />
</div>
{dragHandle ? (
// eslint-disable-next-line jsx-a11y/no-static-element-interactions
<div className="PRIVATE_TreeView-item-drag-handle" onMouseDown={() => setIsExpanded(false)}>
{dragHandle}
</div>
) : null}
{slots.leadingAction}
{hasSubTree ? (
// This lint rule is disabled due to the guidelines in the `TreeView` api docs.
// https://github.com/github/primer/blob/main/apis/tree-view-api.md#the-expandcollapse-chevron-toggle
Expand DownExpand Up@@ -858,6 +846,15 @@ const TrailingVisual: React.FC<TreeViewVisualProps> = props => {

TrailingVisual.displayName = 'TreeView.TrailingVisual'

// ----------------------------------------------------------------------------
// TreeView.LeadingAction

const LeadingAction: React.FC<{children: React.ReactElement}> = props => {
return <div className="PRIVATE_TreeView-item-leading-action" {...props} />
}

LeadingAction.displayName = 'TreeView.LeadingAction'

// ----------------------------------------------------------------------------
// TreeView.DirectoryIcon

Expand DownExpand Up@@ -927,6 +924,7 @@ ErrorDialog.displayName = 'TreeView.ErrorDialog'
export const TreeView = Object.assign(Root, {
Item,
SubTree,
LeadingAction,
LeadingVisual,
TrailingVisual,
DirectoryIcon,
Expand Down