{"version":3,"file":"useDropdown.js","sources":["../../../../../../packages/components/dropdown/src/useDropdown.ts"],"sourcesContent":["// @ts-nocheck\nimport { computed, inject, ref } from 'vue'\nimport { addClass } from '@element-plus/utils'\nimport { EVENT_CODE } from '@element-plus/constants'\nimport { useId, useNamespace } from '@element-plus/hooks'\nimport type { Nullable } from '@element-plus/utils'\nimport type { IElDropdownInstance } from './dropdown'\n\nexport const useDropdown = () => {\n  const elDropdown = inject<IElDropdownInstance>('elDropdown', {})\n  const _elDropdownSize = computed(() => elDropdown?.dropdownSize)\n\n  return {\n    elDropdown,\n    _elDropdownSize,\n  }\n}\n\nexport const initDropdownDomEvent = (\n  dropdownChildren,\n  triggerElm,\n  _instance\n) => {\n  const ns = useNamespace('dropdown')\n  const menuItems = ref<Nullable<HTMLButtonElement[]>>(null)\n  const menuItemsArray = ref<Nullable<HTMLElement[]>>(null)\n  const dropdownElm = ref<Nullable<HTMLElement>>(null)\n  const listId = useId()\n  dropdownElm.value = dropdownChildren?.subTree.el\n\n  function removeTabindex() {\n    triggerElm.setAttribute('tabindex', '-1')\n    menuItemsArray.value?.forEach((item) => item.setAttribute('tabindex', '-1'))\n  }\n\n  function resetTabindex(ele) {\n    removeTabindex()\n    ele?.setAttribute('tabindex', '0')\n  }\n\n  function handleTriggerKeyDown(ev: KeyboardEvent) {\n    const code = ev.code\n    if ([EVENT_CODE.up, EVENT_CODE.down].includes(code)) {\n      removeTabindex()\n      resetTabindex(menuItems.value[0])\n      menuItems.value[0].focus()\n      ev.preventDefault()\n      ev.stopPropagation()\n    } else if (code === EVENT_CODE.enter) {\n      _instance.handleClick()\n    } else if ([EVENT_CODE.tab, EVENT_CODE.esc].includes(code)) {\n      _instance.hide()\n    }\n  }\n\n  function handleItemKeyDown(ev) {\n    const code = ev.code\n    const target = ev.target\n    const currentIndex = menuItemsArray.value.indexOf(target)\n    const max = menuItemsArray.value.length - 1\n    let nextIndex\n    if ([EVENT_CODE.up, EVENT_CODE.down].includes(code)) {\n      if (code === EVENT_CODE.up) {\n        nextIndex = currentIndex !== 0 ? currentIndex - 1 : 0\n      } else {\n        nextIndex = currentIndex < max ? currentIndex + 1 : max\n      }\n      removeTabindex()\n      resetTabindex(menuItems.value[nextIndex])\n      menuItems.value[nextIndex].focus()\n      ev.preventDefault()\n      ev.stopPropagation()\n    } else if (code === EVENT_CODE.enter) {\n      triggerElmFocus()\n      target.click()\n      if (_instance.props.hideOnClick) {\n        _instance.hide()\n      }\n    } else if ([EVENT_CODE.tab, EVENT_CODE.esc].includes(code)) {\n      _instance.hide()\n      triggerElmFocus()\n    }\n  }\n\n  function initAria() {\n    dropdownElm.value.setAttribute('id', listId.value)\n    triggerElm.setAttribute('aria-haspopup', 'list')\n    triggerElm.setAttribute('aria-controls', listId.value)\n    if (!_instance.props.splitButton) {\n      triggerElm.setAttribute('role', 'button')\n      triggerElm.setAttribute('tabindex', _instance.props.tabindex)\n      addClass(triggerElm, ns.b('selfdefine'))\n    }\n  }\n\n  function initEvent() {\n    triggerElm?.addEventListener('keydown', handleTriggerKeyDown)\n    dropdownElm.value?.addEventListener('keydown', handleItemKeyDown, true)\n  }\n\n  function initDomOperation() {\n    menuItems.value = dropdownElm.value.querySelectorAll(\n      \"[tabindex='-1']\"\n    ) as unknown as HTMLButtonElement[]\n    menuItemsArray.value = Array.from(menuItems.value)\n\n    initEvent()\n    initAria()\n  }\n\n  function triggerElmFocus() {\n    triggerElm.focus()\n  }\n\n  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