ContextMenu

The ContextMenu React component displays a context menu populated with ContextMenuItem components. Items can be nested using the ContextSubMenu component. The ContextMenuDivider component shows a divider line between items.

The GlobalContextMenu React component is used to display a ContextMenu at the cursor.

The PopupContextMenu React component displays a ContextMenu within a Popup component, allowing the target element to be specified.

UiAdmin.showContextMenu Example

These lower level components can be used to display a context menu. However, there is an easier API to use: IModelApp.uiAdmin.showContextMenu. UiAdmin.showContextMenu will show a context menu at a particular location. UiAdmin controls various UI components and is callable from IModelApp.uiAdmin in the imodeljs-frontend package. UiAdmin.showContextMenu uses the ContextMenu components to display the context menu.

Menu Items

The application builds an array of AbstractMenuItemProps objects. These objects contain a menu item using the item member or a submenu item using the submenu member.

import { AbstractMenuItemProps } from "@bentley/ui-abstract";

private _myMenuItems: AbstractMenuItemProps[] = [
  {
    id: "Item1", label: "Item ~1", icon: "icon-placeholder",
    submenu: [
      { id: "0", item: { label: "SubMenu Item ~1", icon: "icon-placeholder", execute: () => { } } },
      { id: "1", item: { label: "SubMenu Item ~2", icon: "icon-placeholder", execute: () => { } } },
    ],
  },
  {
    id: "Item2", item: { label: "Item ~2", icon: "icon-placeholder", execute: () => { } },
  },
  {
    id: "Item3", item: { label: "Item ~3", icon: "icon-placeholder", execute: () => { } },
  },
];

Show Context Menu

The IModelApp.uiAdmin.showContextMenu method will be called in response to an event, such as a right-click.

import { IModelApp } from "@bentley/imodeljs-frontend";

public showContextMenu() {
  IModelApp.uiAdmin.showContextMenu(this._myMenuItems, IModelApp.uiAdmin.cursorPosition);
}

PopupContextMenu Example

The PopupContextMenu component can be used to display a ContextMenu within a Popup component relative to a target element. In the example below, the PopupContextMenu is displayed below the button element.

import * as React from "react";
import { ContextMenuItem, ContextSubMenu, PopupContextMenu, useRefState } from "@bentley/ui-core";
import { RelativePosition } from "@bentley/ui-abstract";

export function SamplePopupContextMenu() {
  const [targetRef, target] = useRefState<HTMLButtonElement>();
  const [isMenuOpen, setIsMenuOpen] = React.useState(false);

  const toggleMenu = React.useCallback(() => {
    const show = !isMenuOpen;
    setIsMenuOpen(show);
  }, [isMenuOpen]);

  const onCloseMenu = React.useCallback(() => {
    setIsMenuOpen(false);
  }, []);

  return (
    <div>
      <button onClick={toggleMenu} ref={targetRef}>
        Button with Menu
      </button>
      <PopupContextMenu isOpen={isMenuOpen} position={RelativePosition.BottomLeft} target={target} offset={1}
        onClose={onCloseMenu} onSelect={onCloseMenu} selectedIndex={0}>
        <ContextSubMenu label="Item ~1" icon="icon-placeholder">
          <ContextMenuItem icon="icon-placeholder" iconRight="icon-checkmark">SubMenu Item ~1</ContextMenuItem>
          <ContextMenuItem icon="icon-placeholder">SubMenu Item ~2</ContextMenuItem>
        </ContextSubMenu>
        <ContextMenuItem icon="icon-placeholder" iconRight="icon-checkmark">Item ~2</ContextMenuItem>
        <ContextMenuItem>Item ~3</ContextMenuItem>
        <ContextSubMenu label="Item ~4">
          <ContextMenuItem icon="icon-placeholder">SubMenu Item ~1</ContextMenuItem>
          <ContextMenuItem icon="icon-placeholder">SubMenu Item ~2</ContextMenuItem>
        </ContextSubMenu>
      </PopupContextMenu>
    </div>
  );
};

API Reference

• ContextMenu

Last Updated: 12 June, 2024