wip: dynamic section menu

apps/nextjs/src/components/board/sections/dynamic/dynamic-menu.tsx

@@ -1,5 +1,5 @@
 import type { PropsWithChildren } from "react";
-import { Fragment, useEffect } from "react";
+import { Fragment, useEffect, useRef } from "react";
 import { ActionIcon, Group, Indicator, Menu, Popover, Stack, UnstyledButton } from "@mantine/core";
 import { useHover } from "@mantine/hooks";
 import { IconDotsVertical, IconTrash } from "@tabler/icons-react";
@@ -13,6 +13,7 @@ import { useDynamicSectionActions } from "./dynamic-actions";
 import { useAboveDynamicSectionIds } from "./dynamic-context";
 
 export const BoardDynamicSectionMenu = ({ section }: { section: DynamicSection }) => {
+  const dropdownRef = useRef<HTMLDivElement>(null);
   const [isEditMode] = useEditMode();
   const aboveIds = useAboveDynamicSectionIds();
   const board = useRequiredBoard();
@@ -30,17 +31,40 @@ export const BoardDynamicSectionMenu = ({ section }: { section: DynamicSection }
 
   if (aboveIds.length >= 1 && !hasItemInTopRightCorner) {
     return (
-      <Popover width="auto" position="right" withArrow shadow="md">
-        <Popover.Target>
-          <UnstyledButton pos="absolute" top={4} right={4} style={{ zIndex: 10 }}>
+      <Popover width="auto" position="right" withArrow shadow="md" returnFocus>
+        <Popover.Target popupType="menu">
+          <UnstyledButton
+            pos="absolute"
+            top={4}
+            right={4}
+            style={{ zIndex: 10 }}
+            onKeyDown={(event) => {
+              if (event.key === "ArrowUp" || event.key === "ArrowDown") {
+                event.preventDefault();
+                document.querySelectorAll<HTMLButtonElement>("[data-section-item]")[0]?.focus();
+              }
+            }}
+          >
             <Indicator label={aboveIds.length + 1} styles={{ indicator: { height: "1rem" } }} offset={4}>
               <ActionIcon component="div" variant="default" radius={"xl"}>
                 <IconDotsVertical size={"1rem"} />
               </ActionIcon>
             </Indicator>
           </UnstyledButton>
         </Popover.Target>
-        <Popover.Dropdown>
+        <Popover.Dropdown
+          ref={dropdownRef}
+          role="menu"
+          aria-orientation="vertical"
+          tabIndex={-1}
+          onKeyDown={(event) => {
+            if (event.key === "ArrowUp" || event.key === "ArrowDown") {
+              event.preventDefault();
+              document.querySelectorAll<HTMLButtonElement>("[data-section-item]")[0]?.focus();
+            }
+          }}
+        >
+          <div tabIndex={-1} data-autofocus data-mantine-stop-propagation style={{ outline: 0 }} />
           <Stack>
             {[...aboveIds, section.id].map((id, index) => (
               <Fragment key={id}>
@@ -90,7 +114,7 @@ const DesktopButton = ({ index, id }: DesktopButtonProps) => {
 
   return (
     <InnerMenu id={id} trigger="hover">
-      <UnstyledButton visibleFrom="md" ref={ref}>
+      <UnstyledButton data-section-item visibleFrom="md" ref={ref}>
         Section {index + 1}
       </UnstyledButton>
     </InnerMenu>

apps/nextjs/src/components/board/sections/menu/section-menu-context.tsx

@@ -0,0 +1,27 @@
+import type { GetStylesApi } from "@mantine/core";
+import { createSafeContext } from "@mantine/core";
+
+import type { SectionMenuFactory } from "./section-menu";
+
+interface SectionMenuContext {
+  toggleDropdown: () => void;
+  closeDropdownImmediately: () => void;
+  closeDropdown: () => void;
+  openDropdown: () => void;
+  getItemIndex: (node: HTMLButtonElement) => number | null;
+  setHovered: (index: number | null) => void;
+  hovered: number | null;
+  closeOnItemClick: boolean | undefined;
+  loop: boolean | undefined;
+  trigger: "click" | "hover" | "click-hover" | undefined;
+  opened: boolean;
+  unstyled: boolean | undefined;
+  getStyles: GetStylesApi<SectionMenuFactory>;
+  menuItemTabIndex: -1 | 0 | undefined;
+  openedViaClick: boolean;
+  setOpenedViaClick: (value: boolean) => void;
+}
+
+export const [SectionMenuContextProvider, useSectionMenuContext] = createSafeContext<SectionMenuContext>(
+  "SectionMenu component was not found in the tree",
+);

apps/nextjs/src/components/board/sections/menu/section-menu-dropdown.tsx

@@ -0,0 +1,48 @@
+import { useRef } from "react";
+import type { Factory } from "@mantine/core";
+import { factory, Popover } from "@mantine/core";
+import { useMergedRef } from "@mantine/hooks";
+
+import { useSectionMenuContext } from "./section-menu-context";
+
+export type SectionMenuDropdownStylesNames = "dropdown";
+
+export interface SectionMenuDropdownProps {
+  childOpened: boolean;
+  children: React.ReactNode;
+}
+
+export type SectionMenuDropdownFactory = Factory<{
+  props: SectionMenuDropdownProps;
+  ref: HTMLDivElement;
+  stylesNames: SectionMenuDropdownStylesNames;
+  compound: true;
+}>;
+
+export const SectionMenuDropdown = factory<SectionMenuDropdownFactory>(({ childOpened, children }, ref) => {
+  const wrapperRef = useRef<HTMLDivElement>(null);
+  const ctx = useSectionMenuContext();
+
+  const handleKeyDown = (event: React.KeyboardEvent<HTMLDivElement>) => {
+    if (childOpened) return;
+    if (event.key === "ArrowUp" || event.key === "ArrowDown") {
+      event.preventDefault();
+      wrapperRef.current?.querySelectorAll<HTMLButtonElement>("[data-section-menu-item]:not(:disabled)")[0]?.focus();
+    }
+  };
+
+  return (
+    <Popover.Dropdown
+      role="menu"
+      aria-orientation="vertical"
+      ref={useMergedRef(ref, wrapperRef)}
+      {...ctx.getStyles("dropdown")}
+      tabIndex={-1}
+      data-section-menu-dropdown
+      onKeyDown={handleKeyDown}
+    >
+      <div tabIndex={-1} data-autofocus data-mantine-stop-propagation style={{ outline: 0 }} />
+      {children}
+    </Popover.Dropdown>
+  );
+});

apps/nextjs/src/components/board/sections/menu/section-menu-item.tsx

@@ -0,0 +1,111 @@
+import { KeyboardEvent, useRef } from 'react';
+import {
+  BoxProps,
+  CompoundStylesApiProps,
+  createEventHandler,
+  createScopedKeydownHandler,
+  polymorphicFactory,
+  PolymorphicFactory,
+  UnstyledButton,
+  useDirection,
+  useProps,
+} from '@mantine/core';
+import { useMergedRef } from '@mantine/hooks';
+import { useSectionMenuContext } from './section-menu-context';
+
+export type SectionMenuItemStylesNames = 'item' | 'itemLabel' | 'itemSection';
+
+export interface SectionMenuItemProps
+  extends BoxProps,
+    CompoundStylesApiProps<SectionMenuItemFactory> {
+  /** Item label */
+  children?: React.ReactNode;
+  childMenu: {
+    opened: boolean;
+    close: () => void;
+    open: () => void;
+  };
+}
+
+export type SectionMenuItemFactory = PolymorphicFactory<{
+  props: SectionMenuItemProps;
+  defaultRef: HTMLButtonElement;
+  defaultComponent: 'button';
+  stylesNames: SectionMenuItemStylesNames;
+  compound: true;
+}>;
+
+const defaultProps: Partial<SectionMenuItemProps> = {};
+
+export const SectionMenuItem = polymorphicFactory<SectionMenuItemFactory>((props, ref) => {
+  const { childMenu, classNames, className, style, styles, vars, children, ...others } = useProps(
+    'SectionMenuItem',
+    defaultProps,
+    props
+  );
+
+  const ctx = useSectionMenuContext();
+  const { dir } = useDirection();
+  const itemRef = useRef<HTMLButtonElement>();
+  const itemIndex = ctx.getItemIndex(itemRef.current!);
+  const _others: any = others;
+
+  const handleMouseLeave = createEventHandler(_others.onMouseLeave, () => ctx.setHovered(-1));
+  const handleMouseEnter = createEventHandler(_others.onMouseEnter, () =>
+    ctx.setHovered(ctx.getItemIndex(itemRef.current!))
+  );
+
+  const handleFocus = createEventHandler(_others.onFocus, () =>
+    ctx.setHovered(ctx.getItemIndex(itemRef.current!))
+  );
+
+  const scopedKeydownHandler = createScopedKeydownHandler({
+    siblingSelector: '[data-section-menu-item]',
+    parentSelector: '[data-section-menu-dropdown]',
+    activateOnFocus: false,
+    loop: ctx.loop,
+    dir,
+    orientation: 'vertical',
+    onKeyDown: _others.onKeyDown,
+  });
+
+  const handleKeyDown = (event: KeyboardEvent<HTMLButtonElement>) => {
+    console.log('hi');
+    if (
+      (event.key === 'ArrowRight' && dir === 'ltr') ||
+      (event.key === 'ArrowLeft' && dir === 'rtl')
+    ) {
+      childMenu.open();
+      return;
+    }
+
+    // We don't want to handle keydown event if child menu is opened
+    if (childMenu.opened) {
+      console.log('hey');
+      return;
+    }
+
+    console.log('hallo');
+    scopedKeydownHandler(event);
+  };
+
+  return (
+    <UnstyledButton
+      {...others}
+      unstyled={ctx.unstyled}
+      tabIndex={ctx.menuItemTabIndex}
+      onFocus={handleFocus}
+      {...ctx.getStyles('item', { className, style, styles, classNames })}
+      ref={useMergedRef(itemRef, ref)}
+      role="menuitem"
+      data-section-menu-item
+      data-hovered={ctx.hovered === itemIndex ? true : undefined}
+      data-mantine-stop-propagation
+      onMouseEnter={handleMouseEnter}
+      onMouseLeave={handleMouseLeave}
+      onKeyDown={handleKeyDown}
+    >
+      {children}
+    </UnstyledButton>
+  );
+});

apps/nextjs/src/components/board/sections/menu/section-menu-target.tsx

@@ -0,0 +1,42 @@
+import { cloneElement, forwardRef } from "react";
+import { createEventHandler, isElement, Popover, useProps } from "@mantine/core";
+
+import { useSectionMenuContext } from "./section-menu-context";
+
+export interface SectionMenuTargetProps {
+  /** Target element */
+  children: React.ReactNode;
+
+  /** Key of the prop that should be used to get element ref */
+  refProp?: string;
+}
+
+const defaultProps: Partial<SectionMenuTargetProps> = {
+  refProp: "ref",
+};
+
+export const SectionMenuTarget = forwardRef<HTMLElement, SectionMenuTargetProps>((props, ref) => {
+  const { children, refProp, ...others } = useProps("SectionMenuTarget", defaultProps, props);
+
+  if (!isElement(children)) {
+    throw new Error(
+      "SectionMenu.Target component children should be an element or a component that accepts ref. Fragments, strings, numbers and other primitive values are not supported",
+    );
+  }
+
+  const ctx = useSectionMenuContext();
+
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-argument, @typescript-eslint/no-unsafe-member-access
+  const onClick = createEventHandler(children.props.onClick, () => {
+    ctx.toggleDropdown();
+  });
+
+  return (
+    <Popover.Target refProp={refProp} popupType="menu" ref={ref} {...others}>
+      {cloneElement(children, {
+        onClick,
+        "data-expanded": ctx.opened ? true : undefined,
+      })}
+    </Popover.Target>
+  );
+});