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PopupItemWithDrag.tsx
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PopupItemWithDrag.tsx
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Bentley Systems, Incorporated. All rights reserved.
* See LICENSE.md in the project root for license terms and full copyright notice.
*--------------------------------------------------------------------------------------------*/
/** @packageDocumentation
* @module Toolbar
*/
import "./PopupItem.scss";
import classnames from "classnames";
import * as React from "react";
import type { ActionButton, GroupButton } from "@itwin/appui-abstract";
import {
ConditionalBooleanValue,
ConditionalStringValue,
RelativePosition,
ToolbarItemUtilities,
} from "@itwin/appui-abstract";
import { Badge, IconHelper, useRefState } from "@itwin/core-react";
import type { ToolbarButtonItemProps } from "./Item";
import { PopupItemPopup, ToolbarPopupContext } from "./PopupItem";
import { PopupItemsPanel } from "./PopupItemsPanel";
import {
ToolbarPanelAlignment,
useToolbarWithOverflowDirectionContext,
useToolItemEntryContext,
} from "./InternalToolbarComponent";
import { useDragInteraction } from "./useDragInteraction";
import { Direction } from "./utilities/Direction";
/** Properties of [[PopupItem]] component.
* @public
*/
export interface PopupItemWithDragProps extends ToolbarButtonItemProps {
/** Panel of the toolbar. */
groupItem: GroupButton;
}
function tryFindActiveAction(item: GroupButton): ActionButton | undefined {
for (const childItem of item.items) {
// istanbul ignore else
if (ToolbarItemUtilities.isActionButton(childItem)) {
if (childItem.isActive) return childItem;
} else if (ToolbarItemUtilities.isGroupButton(childItem)) {
const nestedChild = tryFindActiveAction(childItem);
if (nestedChild) return nestedChild;
}
}
return undefined;
}
function getFirstAvailableChildActionItem(
item: GroupButton
): ActionButton | undefined {
for (const childItem of item.items) {
if (ToolbarItemUtilities.isActionButton(childItem)) {
return childItem;
} else {
// istanbul ignore else
if (ToolbarItemUtilities.isGroupButton(childItem)) {
const nestedChild = getFirstAvailableChildActionItem(childItem);
// istanbul ignore else
if (nestedChild) return nestedChild;
}
}
}
return undefined;
}
function getActiveAction(item: GroupButton): ActionButton | undefined {
const activeItem = tryFindActiveAction(item);
if (activeItem) return activeItem;
// initially look only in root items
for (const childItem of item.items) {
// istanbul ignore else
if (ToolbarItemUtilities.isActionButton(childItem)) {
return childItem;
}
}
// if not found look inside groups
return getFirstAvailableChildActionItem(item);
}
/** Expandable Group button Item
* @public
*/
export function PopupItemWithDrag(props: PopupItemWithDragProps) {
const [isPanelShown, setPanelShown] = React.useState(false);
const [activeAction, setActiveAction] = React.useState(
getActiveAction(props.groupItem)
);
const {
expandsTo,
overflowExpandsTo,
panelAlignment,
onPopupPanelOpenClose,
} = useToolbarWithOverflowDirectionContext();
React.useEffect(() => {
const newActiveAction = getActiveAction(props.groupItem);
// istanbul ignore else
if (newActiveAction) {
// istanbul ignore next
if (newActiveAction.isActive) {
setActiveAction(newActiveAction);
} else {
if (activeAction && activeAction.isActive) {
setActiveAction({ ...activeAction, isActive: false });
}
}
}
}, [props.groupItem, activeAction]);
const processPanelOpenClose = React.useCallback(
(isOpening: boolean) => {
setPanelShown((prev) => {
// istanbul ignore else
if (prev !== isOpening) onPopupPanelOpenClose(isOpening);
return isOpening;
});
},
[setPanelShown, onPopupPanelOpenClose]
);
// handle open and closing popup panel
const onOpenPanel = React.useCallback(() => {
processPanelOpenClose(!isPanelShown);
}, [isPanelShown, processPanelOpenClose]);
// handle open and closing popup panel
const onGroupButtonClick = React.useCallback(() => {
// only execute action if not disabled
activeAction &&
!ConditionalBooleanValue.getValue(activeAction.isDisabled) &&
activeAction.execute();
}, [activeAction]);
const icon = activeAction
? IconHelper.getIconReactNode(activeAction.icon, activeAction.internalData)
: props.icon;
const title = activeAction
? ConditionalStringValue.getValue(activeAction.label)
: props.title;
const isActive = activeAction ? activeAction.isActive : props.isActive;
const isDisabled = ConditionalBooleanValue.getValue(
activeAction ? activeAction.isDisabled : props.isDisabled
);
const { handlePointerDown, handleButtonClick } = useDragInteraction(
onGroupButtonClick,
onOpenPanel
);
const className = classnames(
"components-toolbar-button-item",
"components-toolbar-expandable-button",
isActive && "components-active",
isDisabled && "components-disabled-drag",
props.className
);
const [targetRef, target] = useRefState<HTMLButtonElement>();
const handleClose = React.useCallback(() => {
processPanelOpenClose(false);
}, [processPanelOpenClose]);
const { hasOverflow } = useToolItemEntryContext();
const expandsToDirection = hasOverflow
? /* istanbul ignore next */ overflowExpandsTo
: expandsTo;
return (
<ToolbarPopupContext.Provider
value={{
closePanel: /* istanbul ignore next */ () =>
processPanelOpenClose(false),
setSelectedItem: /* istanbul ignore next */ (
buttonItem: ActionButton
) => setActiveAction(buttonItem),
}}
>
<button
data-item-id={props.itemId}
data-item-type="action-tool-button"
data-item-group-priority={props.groupPriority}
data-item-priority={props.itemPriority}
data-item-provider-id={props.providerId}
ref={targetRef}
onPointerDown={handlePointerDown}
onClick={handleButtonClick}
onKeyDown={props.onKeyDown}
className={className}
style={props.style}
title={title}
>
<div className="components-icon">{icon}</div>
{props.badge && (
<div className="components-badge">
{activeAction ? (
<Badge type={activeAction.badgeType} />
) : (
props.badge
)}
</div>
)}
<div className="components-triangle" />
</button>
<PopupItemPopup
isOpen={isPanelShown}
onClose={handleClose}
position={toToolbarPopupRelativePosition(
expandsToDirection,
panelAlignment
)}
target={target}
>
<PopupItemsPanel
groupItem={props.groupItem}
activateOnPointerUp={true}
/>
</PopupItemPopup>
</ToolbarPopupContext.Provider>
);
}
/** @internal */
export function toToolbarPopupRelativePosition(
expandsTo: Direction,
alignment: ToolbarPanelAlignment
): RelativePosition {
// istanbul ignore next
switch (expandsTo) {
case Direction.Bottom: {
if (alignment === ToolbarPanelAlignment.End)
return RelativePosition.BottomRight;
return RelativePosition.BottomLeft;
}
case Direction.Left:
return RelativePosition.LeftTop;
case Direction.Right:
return RelativePosition.RightTop;
case Direction.Top:
return RelativePosition.Top;
}
}