{"version":3,"file":"MenuContentImpl.js","sources":["../../src/Menu/MenuContentImpl.vue"],"sourcesContent":["<script lang=\"ts\">\nimport type { Ref } from 'vue'\nimport type {\n  GraceIntent,\n  Side,\n} from './utils'\nimport type {\n  DismissableLayerEmits,\n  DismissableLayerProps,\n} from '@/DismissableLayer'\nimport type { FocusScopeProps } from '@/FocusScope'\nimport type { PopperContentProps } from '@/Popper'\nimport type { RovingFocusGroupEmits } from '@/RovingFocus'\n\nimport {\n  createContext,\n  getActiveElement,\n  useArrowNavigation,\n  useFocusGuards,\n  useForwardExpose,\n  useTypeahead,\n} from '@/shared'\nimport { useBodyScrollLock } from '@/shared/useBodyScrollLock'\n\nexport interface MenuContentContext {\n  onItemEnter: (event: PointerEvent) => boolean\n  onItemLeave: (event: PointerEvent) => void\n  onTriggerLeave: (event: PointerEvent) => boolean\n  searchRef: Ref<string>\n  pointerGraceTimerRef: Ref<number>\n  onPointerGraceIntentChange: (intent: GraceIntent | null) => void\n}\n\nexport const [injectMenuContentContext, provideMenuContentContext]\n  = createContext<MenuContentContext>('MenuContent')\n\nexport interface MenuContentImplPrivateProps {\n  /**\n   * When `true`, hover/focus/click interactions will be disabled on elements outside\n   * the `DismissableLayer`. Users will need to click twice on outside elements to\n   * interact with them: once to close the `DismissableLayer`, and again to trigger the element.\n   */\n  disableOutsidePointerEvents?: DismissableLayerProps['disableOutsidePointerEvents']\n  /**\n   * Whether scrolling outside the `MenuContent` should be prevented\n   * @defaultValue false\n   */\n  disableOutsideScroll?: boolean\n\n  /**\n   * Whether focus should be trapped within the `MenuContent`\n   * @defaultValue also\n   */\n  trapFocus?: FocusScopeProps['trapped']\n}\n\nexport type MenuContentImplEmits = DismissableLayerEmits & Omit<RovingFocusGroupEmits, 'update:currentTabStopId'> & {\n  openAutoFocus: [event: Event]\n  /**\n   * Event handler called when auto-focusing on close.\n   * Can be prevented.\n   */\n  closeAutoFocus: [event: Event]\n}\n\ntype MenuContentImplPrivateEmits = MenuContentImplEmits & {\n  /**\n   * Handler called when the `DismissableLayer` should be dismissed\n   */\n  dismiss: []\n}\n\nexport interface MenuContentImplProps\n  extends MenuContentImplPrivateProps,\n  Omit<PopperContentProps, 'dir'> {\n  /**\n   * When `true`, keyboard navigation will loop from last item to first, and vice versa.\n   * @defaultValue false\n   */\n  loop?: boolean\n}\n\nexport interface MenuRootContentTypeProps\n  extends Omit<MenuContentImplProps, 'disableOutsidePointerEvents' | 'disableOutsideScroll' | 'trapFocus'> {}\n</script>\n\n<script setup lang=\"ts\">\nimport {\n  onUnmounted,\n  ref,\n  toRefs,\n  watch,\n} from 'vue'\nimport { DismissableLayer } from '@/DismissableLayer'\nimport { FocusScope } from '@/FocusScope'\nimport {\n  PopperContent,\n  PopperContentPropsDefaultValue,\n} from '@/Popper'\nimport { RovingFocusGroup } from '@/RovingFocus'\nimport { injectMenuContext, injectMenuRootContext } from './MenuRoot.vue'\nimport {\n  FIRST_LAST_KEYS,\n  focusFirst,\n  getOpenState,\n  isMouseEvent,\n  isPointerInGraceArea,\n  LAST_KEYS,\n} from './utils'\n\nconst props = withDefaults(defineProps<MenuContentImplProps>(), {\n  ...PopperContentPropsDefaultValue,\n})\nconst emits = defineEmits<MenuContentImplPrivateEmits>()\nconst menuContext = injectMenuContext()\nconst rootContext = injectMenuRootContext()\n\nconst { trapFocus, disableOutsidePointerEvents, loop } = toRefs(props)\n\nuseFocusGuards()\nuseBodyScrollLock(disableOutsidePointerEvents.value)\n\nconst searchRef = ref('')\nconst timerRef = ref(0)\nconst pointerGraceTimerRef = ref(0)\nconst pointerGraceIntentRef = ref<GraceIntent | null>(null)\nconst pointerDirRef = ref<Side>('right')\nconst lastPointerXRef = ref(0)\nconst currentItemId = ref<string | null>(null)\n\nconst rovingFocusGroupRef = ref<InstanceType<typeof RovingFocusGroup>>()\nconst { forwardRef, currentElement: contentElement } = useForwardExpose()\nconst { handleTypeaheadSearch } = useTypeahead()\n\nwatch(contentElement, (el) => {\n  menuContext!.onContentChange(el)\n})\n\nonUnmounted(() => {\n  window.clearTimeout(timerRef.value)\n})\n\nfunction isPointerMovingToSubmenu(event: PointerEvent) {\n  const isMovingTowards\n    = pointerDirRef.value === pointerGraceIntentRef.value?.side\n\n  return (\n    isMovingTowards\n    && isPointerInGraceArea(event, pointerGraceIntentRef.value?.area)\n  )\n}\n\nasync function handleMountAutoFocus(event: Event) {\n  emits('openAutoFocus', event)\n  if (event.defaultPrevented)\n    return\n  // when opening, explicitly focus the content area only and leave\n  // `onEntryFocus` in  control of focusing first item\n  event.preventDefault()\n  contentElement.value?.focus({\n    preventScroll: true,\n  })\n}\n\nfunction handleKeyDown(event: KeyboardEvent) {\n  if (event.defaultPrevented)\n    return\n  // submenu key events bubble through portals. We only care about keys in this menu.\n  const target = event.target as HTMLElement\n  const isKeyDownInside\n    = target.closest('[data-reka-menu-content]') === event.currentTarget\n  const isModifierKey = event.ctrlKey || event.altKey || event.metaKey\n  const isCharacterKey = event.key.length === 1\n\n  const el = useArrowNavigation(\n    event,\n    getActiveElement() as HTMLElement,\n    contentElement.value,\n    {\n      loop: loop.value,\n      arrowKeyOptions: 'vertical',\n      dir: rootContext?.dir.value,\n      focus: true,\n      attributeName: '[data-reka-collection-item]:not([data-disabled])',\n    },\n  )\n  if (el)\n    return el?.focus()\n\n  // prevent \"Space\" taken account into handleTypeahead\n  if (event.code === 'Space')\n    return\n\n  const collectionItems = rovingFocusGroupRef.value?.getItems() ?? []\n\n  if (isKeyDownInside) {\n    // menus should not be navigated using tab key so we prevent it\n    if (event.key === 'Tab')\n      event.preventDefault()\n    if (!isModifierKey && isCharacterKey)\n      handleTypeaheadSearch(event.key, collectionItems)\n  }\n\n  // focus first/last item based on key pressed\n  if (event.target !== contentElement.value)\n    return\n  if (!FIRST_LAST_KEYS.includes(event.key))\n    return\n  event.preventDefault()\n  const candidateNodes = [...collectionItems.map(item => item.ref)]\n  if (LAST_KEYS.includes(event.key))\n    candidateNodes.reverse()\n  focusFirst(candidateNodes)\n}\n\nfunction handleBlur(event: FocusEvent) {\n  // clear search buffer when leaving the menu\n  // @ts-expect-error the provided currentTarget and target should be HTMLElement\n  if (!event?.currentTarget?.contains?.(event.target)) {\n    window.clearTimeout(timerRef.value)\n    searchRef.value = ''\n  }\n}\n\nfunction handlePointerMove(event: PointerEvent) {\n  if (!isMouseEvent(event))\n    return\n  const target = event.target as HTMLElement\n  const pointerXHasChanged = lastPointerXRef.value !== event.clientX\n\n  // We don't use `event.movementX` for this check because Safari will\n  // always return `0` on a pointer event.\n  if (\n    (event?.currentTarget as HTMLElement)?.contains(target)\n    && pointerXHasChanged\n  ) {\n    const newDir = event.clientX > lastPointerXRef.value ? 'right' : 'left'\n    pointerDirRef.value = newDir\n    lastPointerXRef.value = event.clientX\n  }\n}\n\nprovideMenuContentContext({\n  onItemEnter: (event) => {\n    // event.preventDefault() we can't prevent pointerMove event\n    if (isPointerMovingToSubmenu(event))\n      return true\n    else\n      return false\n  },\n  onItemLeave: (event) => {\n    if (isPointerMovingToSubmenu(event))\n      return\n    contentElement.value?.focus()\n    currentItemId.value = null\n  },\n  onTriggerLeave: (event) => {\n    // event.preventDefault() we can't prevent pointerLeave event\n    if (isPointerMovingToSubmenu(event))\n      return true\n    else\n      return false\n  },\n  searchRef,\n  pointerGraceTimerRef,\n  onPointerGraceIntentChange: (intent) => {\n    pointerGraceIntentRef.value = intent\n  },\n})\n</script>\n\n<template>\n  <FocusScope\n    as-child\n    :trapped=\"trapFocus\"\n    @mount-auto-focus=\"handleMountAutoFocus\"\n    @unmount-auto-focus=\"emits('closeAutoFocus', $event)\"\n  >\n    <DismissableLayer\n      as-child\n      :disable-outside-pointer-events=\"disableOutsidePointerEvents\"\n      @escape-key-down=\"emits('escapeKeyDown', $event)\"\n      @pointer-down-outside=\"emits('pointerDownOutside', $event)\"\n      @focus-outside=\"emits('focusOutside', $event)\"\n      @interact-outside=\"emits('interactOutside', $event)\"\n      @dismiss=\"emits('dismiss')\"\n    >\n      <RovingFocusGroup\n        ref=\"rovingFocusGroupRef\"\n        v-model:current-tab-stop-id=\"currentItemId\"\n        as-child\n        orientation=\"vertical\"\n        :dir=\"rootContext.dir.value\"\n        :loop=\"loop\"\n        @entry-focus=\"(event) => {\n          emits('entryFocus', event)\n          // only focus first item when using keyboard\n          if (!rootContext.isUsingKeyboardRef.value) event.preventDefault();\n        }\"\n      >\n        <PopperContent\n          :ref=\"forwardRef\"\n          role=\"menu\"\n          :as=\"as\"\n          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</RovingFocusGroup>\n    </DismissableLayer>\n  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