JbSxs/Front-end logistics/node_modules/.cache/babel-loader/f3e7312f8edce544739dfd4b8e0fe763929406cb4cf233821fdda1877257082a.json

{"ast":null,"code":"import { nextTick } from 'vue';\nimport { obtainAllFocusableElements } from '../../utils/dom/aria.mjs';\nimport { EVENT_CODE } from '../../constants/aria.mjs';\nconst FOCUSABLE_CHILDREN = \"_trap-focus-children\";\nconst TRAP_FOCUS_HANDLER = \"_trap-focus-handler\";\nconst FOCUS_STACK = [];\nconst FOCUS_HANDLER = e => {\n  var _a;\n  if (FOCUS_STACK.length === 0) return;\n  const focusableElement = FOCUS_STACK[FOCUS_STACK.length - 1][FOCUSABLE_CHILDREN];\n  if (focusableElement.length > 0 && e.code === EVENT_CODE.tab) {\n    if (focusableElement.length === 1) {\n      e.preventDefault();\n      if (document.activeElement !== focusableElement[0]) {\n        focusableElement[0].focus();\n      }\n      return;\n    }\n    const goingBackward = e.shiftKey;\n    const isFirst = e.target === focusableElement[0];\n    const isLast = e.target === focusableElement[focusableElement.length - 1];\n    if (isFirst && goingBackward) {\n      e.preventDefault();\n      focusableElement[focusableElement.length - 1].focus();\n    }\n    if (isLast && !goingBackward) {\n      e.preventDefault();\n      focusableElement[0].focus();\n    }\n    if (process.env.NODE_ENV === \"test\") {\n      const index = focusableElement.indexOf(e.target);\n      if (index !== -1) {\n        (_a = focusableElement[goingBackward ? index - 1 : index + 1]) == null ? void 0 : _a.focus();\n      }\n    }\n  }\n};\nconst TrapFocus = {\n  beforeMount(el) {\n    el[FOCUSABLE_CHILDREN] = obtainAllFocusableElements(el);\n    FOCUS_STACK.push(el);\n    if (FOCUS_STACK.length <= 1) {\n      document.addEventListener(\"keydown\", FOCUS_HANDLER);\n    }\n  },\n  updated(el) {\n    nextTick(() => {\n      el[FOCUSABLE_CHILDREN] = obtainAllFocusableElements(el);\n    });\n  },\n  unmounted() {\n    FOCUS_STACK.shift();\n    if (FOCUS_STACK.length === 0) {\n      document.removeEventListener(\"keydown\", FOCUS_HANDLER);\n    }\n  }\n};\nexport { FOCUSABLE_CHILDREN, TRAP_FOCUS_HANDLER, TrapFocus as default };","map":{"version":3,"names":["FOCUSABLE_CHILDREN","TRAP_FOCUS_HANDLER","FOCUS_STACK","FOCUS_HANDLER","e","_a","length","focusableElement","code","EVENT_CODE","tab","preventDefault","document","activeElement","focus","goingBackward","shiftKey","isFirst","target","isLast","process","env","NODE_ENV","index","indexOf","TrapFocus","beforeMount","el","obtainAllFocusableElements","push","addEventListener","updated","nextTick","unmounted","shift","removeEventListener"],"sources":["../../../../../packages/directives/trap-focus/index.ts"],"sourcesContent":["import { nextTick } from 'vue'\nimport { obtainAllFocusableElements } from '@element-plus/utils'\nimport { EVENT_CODE } from '@element-plus/constants'\nimport type { ObjectDirective } from 'vue'\n\nexport const FOCUSABLE_CHILDREN = '_trap-focus-children'\nexport const TRAP_FOCUS_HANDLER = '_trap-focus-handler'\n\nexport interface TrapFocusElement extends HTMLElement {\n  [FOCUSABLE_CHILDREN]: HTMLElement[]\n  [TRAP_FOCUS_HANDLER]: (e: KeyboardEvent) => void\n}\n\nconst FOCUS_STACK: TrapFocusElement[] = []\n\nconst FOCUS_HANDLER = (e: KeyboardEvent) => {\n  // Getting the top layer.\n  if (FOCUS_STACK.length === 0) return\n  const focusableElement =\n    FOCUS_STACK[FOCUS_STACK.length - 1][FOCUSABLE_CHILDREN]\n  if (focusableElement.length > 0 && e.code === EVENT_CODE.tab) {\n    if (focusableElement.length === 1) {\n      e.preventDefault()\n      if (document.activeElement !== focusableElement[0]) {\n        focusableElement[0].focus()\n      }\n      return\n    }\n    const goingBackward = e.shiftKey\n    const isFirst = e.target === focusableElement[0]\n    const isLast = e.target === focusableElement[focusableElement.length - 1]\n    if (isFirst && goingBackward) {\n      e.preventDefault()\n      focusableElement[focusableElement.length - 1].focus()\n    }\n    if (isLast && !goingBackward) {\n      e.preventDefault()\n      focusableElement[0].focus()\n    }\n\n    // the is critical since jsdom did not implement user actions, you can only mock it\n    // DELETE ME: when testing env switches to pu