{"version":3,"sourceRoot":"/cv/scripts/DAC0/eng/include/lib","sources":["focus-visible.js"],"sourcesContent":["/**\r\n * Applies the :focus-visible polyfill at the given scope.\r\n * A scope in this case is either the top-level Document or a Shadow Root.\r\n *\r\n * @param {(Document|ShadowRoot)} scope\r\n * @see https://github.com/WICG/focus-visible\r\n */\r\nfunction applyFocusVisiblePolyfill(scope) {\r\n  var hadKeyboardEvent = true;\r\n  var hadFocusVisibleRecently = false;\r\n  var hadFocusVisibleRecentlyTimeout = null;\r\n\r\n  var inputTypesAllowlist = {\r\n    text: true,\r\n    search: true,\r\n    url: true,\r\n    tel: true,\r\n    email: true,\r\n    password: true,\r\n    number: true,\r\n    date: true,\r\n    month: true,\r\n    week: true,\r\n    time: true,\r\n    datetime: true,\r\n    'datetime-local': true\r\n  };\r\n\r\n  /**\r\n   * Helper function for legacy browsers and iframes which sometimes focus\r\n   * elements like document, body, and non-interactive SVG.\r\n   * @param {Element} el\r\n   */\r\n  function isValidFocusTarget(el) {\r\n    if (\r\n      el &&\r\n      el !== document &&\r\n      el.nodeName !== 'HTML' &&\r\n      el.nodeName !== 'BODY' &&\r\n      'classList' in el &&\r\n      'contains' in el.classList\r\n    ) {\r\n      return true;\r\n    }\r\n    return false;\r\n  }\r\n\r\n  /**\r\n   * Computes whether the given element should automatically trigger the\r\n   * `focus-visible` class being added, i.e. whether it should always match\r\n   * `:focus-visible` when focused.\r\n   * @param {Element} el\r\n   * @return {boolean}\r\n   */\r\n  function focusTriggersKeyboardModality(el) {\r\n    var type = el.type;\r\n    var tagName = el.tagName;\r\n\r\n    if (tagName === 'INPUT' && inputTypesAllowlist[type] && !el.readOnly) {\r\n      return true;\r\n    }\r\n\r\n    if (tagName === 'TEXTAREA' && !el.readOnly) {\r\n      return true;\r\n    }\r\n\r\n    if (el.isContentEditable) {\r\n      return true;\r\n    }\r\n\r\n    return false;\r\n  }\r\n\r\n  /**\r\n   * Add the `focus-visible` class to the given element if it was not added by\r\n   * the author.\r\n   * @param {Element} el\r\n   */\r\n  function addFocusVisibleClass(el) {\r\n    if (el.classList.contains('focus-visible')) {\r\n      return;\r\n    }\r\n    el.classList.add('focus-visible');\r\n    el.setAttribute('data-focus-visible-added', '');\r\n  }\r\n\r\n  /**\r\n   * Remove the `focus-visible` class from the given element if it was not\r\n   * originally added by the author.\r\n   * @param {Element} el\r\n   */\r\n  function removeFocusVisibleClass(el) {\r\n    if (!el.hasAttribute('data-focus-visible-added')) {\r\n      return;\r\n    }\r\n    el.classList.remove('focus-visible');\r\n    el.removeAttribute('data-focus-visible-added');\r\n  }\r\n\r\n  /**\r\n   * If the most recent user interaction was via the keyboard;\r\n   * and the key press did not include a meta, alt/option, or control key;\r\n   * then the modality is keyboard. Otherwise, the modality is not keyboard.\r\n   * Apply `focus-visible` to any current active element and keep track\r\n   * of our keyboard modality state with `hadKeyboardEvent`.\r\n   * @param {KeyboardEvent} e\r\n   */\r\n  function onKeyDown(e) {\r\n    if (e.metaKey || e.altKey || e.ctrlKey) {\r\n      return;\r\n    }\r\n\r\n    if (isValidFocusTarget(scope.activeElement)) {\r\n      addFocusVisibleClass(scope.activeElement);\r\n    }\r\n\r\n    hadKeyboardEvent = true;\r\n  }\r\n\r\n  /**\r\n   * If at any point a user clicks with a pointing device, ensure that we change\r\n   * the modality away from keyboard.\r\n   * This avoids the situation where a user presses a key on an already focused\r\n   * element, and then clicks on a different element, focusing it with a\r\n   * pointing device, while we still think we're in keyboard modality.\r\n   * @param {Event} e\r\n   */\r\n  function onPointerDown(e) {\r\n    hadKeyboardEvent = false;\r\n  }\r\n\r\n  /**\r\n   * On `focus`, add the `focus-visible` class to the target if:\r\n   * - the target received focus as a result of keyboard navigation, or\r\n   * - the event target is an element that will likely require interaction\r\n   *   via the keyboard (e.g. a text box)\r\n   * @param {Event} e\r\n   */\r\n  function onFocus(e) {\r\n    // Prevent IE from focusing the document or HTML element.\r\n    if (!isValidFocusTarget(e.target)) {\r\n      return;\r\n    }\r\n\r\n    if (hadKeyboardEvent || focusTriggersKeyboardModality(e.target)) {\r\n      addFocusVisibleClass(e.target);\r\n    }\r\n  }\r\n\r\n  /**\r\n   * On `blur`, remove the `focus-visible` class from the target.\r\n   * @param {Event} e\r\n   */\r\n  function onBlur(e) {\r\n    if (!isValidFocusTarget(e.target)) {\r\n      return;\r\n    }\r\n\r\n    if (\r\n      e.target.classList.contains('focus-visible') ||\r\n      e.target.hasAttribute('data-focus-visible-added')\r\n    ) {\r\n      // To detect a tab/window switch, we look for a blur event followed\r\n      // rapidly by a visibility change.\r\n      // If we don't see a visibility change within 100ms, it's probably a\r\n      // regular focus change.\r\n      hadFocusVisibleRecently = true;\r\n      window.clearTimeout(hadFocusVisibleRecentlyTimeout);\r\n      hadFocusVisibleRecentlyTimeout = window.setTimeout(function() {\r\n        hadFocusVisibleRecently = false;\r\n      }, 100);\r\n      removeFocusVisibleClass(e.target);\r\n    }\r\n  }\r\n\r\n  /**\r\n   * If the user changes tabs, keep track of whether or not the previously\r\n   * focused element had .focus-visible.\r\n   * @param {Event} e\r\n   */\r\n  function onVisibilityChange(e) {\r\n    if (document.visibilityState === 'hidden') {\r\n      // If the tab becomes active again, the browser will handle calling focus\r\n      // on the element (Safari actually calls it twice).\r\n      // If this tab change caused a blur on an element with focus-visible,\r\n      // re-apply the class when the user switches back to the tab.\r\n      if (hadFocusVisibleRecently) {\r\n        hadKeyboardEvent = true;\r\n      }\r\n      addInitialPointerMoveListeners();\r\n    }\r\n  }\r\n\r\n  /**\r\n   * Add a group of listeners to detect usage of any pointing devices.\r\n   * These listeners will be added when the polyfill first loads, and anytime\r\n   * the window is blurred, so that they are active when the window regains\r\n   * focus.\r\n   */\r\n  function addInitialPointerMoveListeners() {\r\n    document.addEventListener('mousemove', onInitialPointerMove);\r\n    document.addEventListener('mousedown', onInitialPointerMove);\r\n    document.addEventListener('mouseup', onInitialPointerMove);\r\n    document.addEventListener('pointermove', onInitialPointerMove);\r\n    document.addEventListener('pointerdown', onInitialPointerMove);\r\n    document.addEventListener('pointerup', onInitialPointerMove);\r\n    document.addEventListener('touchmove', onInitialPointerMove);\r\n    document.addEventListener('touchstart', onInitialPointerMove);\r\n    document.addEventListener('touchend', onInitialPointerMove);\r\n  }\r\n\r\n  function removeInitialPointerMoveListeners() {\r\n    document.removeEventListener('mousemove', onInitialPointerMove);\r\n    document.removeEventListener('mousedown', onInitialPointerMove);\r\n    document.removeEventListener('mouseup', onInitialPointerMove);\r\n    document.removeEventListener('pointermove', onInitialPointerMove);\r\n    document.removeEventListener('pointerdown', onInitialPointerMove);\r\n    document.removeEventListener('pointerup', onInitialPointerMove);\r\n    document.removeEventListener('touchmove', onInitialPointerMove);\r\n    document.removeEventListener('touchstart', onInitialPointerMove);\r\n    document.removeEventListener('touchend', onInitialPointerMove);\r\n  }\r\n\r\n  /**\r\n   * When the polfyill first loads, assume the user is in keyboard modality.\r\n   * If any event is received from a pointing device (e.g. mouse, pointer,\r\n   * touch), turn off keyboard modality.\r\n   * This accounts for situations where focus enters the page from the URL bar.\r\n   * @param {Event} e\r\n   */\r\n  function onInitialPointerMove(e) {\r\n    // Work around a Safari quirk that fires a mousemove on <html> whenever the\r\n    // window blurs, even if you're tabbing out of the page. ¯\\_(ツ)_/¯\r\n    if (e.target.nodeName && e.target.nodeName.toLowerCase() === 'html') {\r\n      return;\r\n    }\r\n\r\n    hadKeyboardEvent = false;\r\n    removeInitialPointerMoveListeners();\r\n  }\r\n\r\n  // For some kinds of state, we are interested in changes at the global scope\r\n  // only. For example, global pointer input, global key presses and global\r\n  // visibility change should affect the state at every scope:\r\n  document.addEventListener('keydown', onKeyDown, true);\r\n  document.addEventListener('mousedown', onPointerDown, true);\r\n  document.addEventListener('pointerdown', onPointerDown, true);\r\n  document.addEventListener('touchstart', onPointerDown, true);\r\n  document.addEventListener('visibilitychange', onVisibilityChange, true);\r\n\r\n  addInitialPointerMoveListeners();\r\n\r\n  // For focus and blur, we specifically care about state changes in the local\r\n  // scope. This is because focus / blur events that originate from within a\r\n  // shadow root are not re-dispatched from the host element if it was already\r\n  // the active element in its own scope:\r\n  scope.addEventListener('focus', onFocus, true);\r\n  scope.addEventListener('blur', onBlur, true);\r\n\r\n  // We detect that a node is a ShadowRoot by ensuring that it is a\r\n  // DocumentFragment and also has a host property. This check covers native\r\n  // implementation and polyfill implementation transparently. If we only cared\r\n  // about the native implementation, we could just check if the scope was\r\n  // an instance of a ShadowRoot.\r\n  if (scope.nodeType === Node.DOCUMENT_FRAGMENT_NODE && scope.host) {\r\n    // Since a ShadowRoot is a special kind of DocumentFragment, it does not\r\n    // have a root element to add a class to. So, we add this attribute to the\r\n    // host element instead:\r\n    scope.host.setAttribute('data-js-focus-visible', '');\r\n  } else if (scope.nodeType === Node.DOCUMENT_NODE) {\r\n    document.documentElement.classList.add('js-focus-visible');\r\n    document.documentElement.setAttribute('data-js-focus-visible', '');\r\n  }\r\n}\r\n\r\n// It is important to wrap all references to global window and document in\r\n// these checks to support server-side rendering use cases\r\n// @see https://github.com/WICG/focus-visible/issues/199\r\nif (typeof window !== 'undefined' && typeof document !== 'undefined') {\r\n  // Make the polyfill helper globally available. This can be used as a signal\r\n  // to interested libraries that wish to coordinate with the polyfill for e.g.,\r\n  // applying the polyfill to a shadow root:\r\n  window.applyFocusVisiblePolyfill = applyFocusVisiblePolyfill;\r\n\r\n  // Notify interested libraries of the polyfill's presence, in case the\r\n  // polyfill was loaded lazily:\r\n  var event;\r\n\r\n  try {\r\n    event = new CustomEvent('focus-visible-polyfill-ready');\r\n  } catch (error) {\r\n    // IE11 does not support using CustomEvent as a constructor directly:\r\n    event = document.createEvent('CustomEvent');\r\n    event.initCustomEvent('focus-visible-polyfill-ready', false, false, {});\r\n  }\r\n\r\n  window.dispatchEvent(event);\r\n}\r\n\r\nif (typeof document !== 'undefined') {\r\n  // Apply the polyfill to the global document, so that no JavaScript\r\n  // coordination is required to use the polyfill in the top-level document:\r\n  applyFocusVisiblePolyfill(document);\r\n}"],"names":["applyFocusVisiblePolyfill","scope","hadKeyboardEvent","hadFocusVisibleRecently","hadFocusVisibleRecentlyTimeout","inputTypesAllowlist","text","search","url","tel","email","password","number","date","month","week","time","datetime","datetime-local","isValidFocusTarget","el","document","nodeName","classList","addFocusVisibleClass","contains","add","setAttribute","onPointerDown","e","addInitialPointerMoveListeners","addEventListener","onInitialPointerMove","target","toLowerCase","removeEventListener","metaKey","altKey","ctrlKey","activeElement","visibilityState","type","tagName","readOnly","isContentEditable","hasAttribute","window","clearTimeout","setTimeout","remove","removeAttribute","nodeType","Node","DOCUMENT_FRAGMENT_NODE","host","DOCUMENT_NODE","documentElement","event","CustomEvent","error","createEvent","initCustomEvent","dispatchEvent"],"mappings":"AAOA,SAASA,0BAA0BC,GACjC,IAAIC,EAAmB,CAAA,EACnBC,EAA0B,CAAA,EAC1BC,EAAiC,KAEjCC,EAAsB,CACxBC,KAAM,CAAA,EACNC,OAAQ,CAAA,EACRC,IAAK,CAAA,EACLC,IAAK,CAAA,EACLC,MAAO,CAAA,EACPC,SAAU,CAAA,EACVC,OAAQ,CAAA,EACRC,KAAM,CAAA,EACNC,MAAO,CAAA,EACPC,KAAM,CAAA,EACNC,KAAM,CAAA,EACNC,SAAU,CAAA,EACVC,iBAAkB,CAAA,CACpB,EAOA,SAASC,EAAmBC,GAC1B,MACEA,CAAAA,EAAAA,GACAA,IAAOC,UACS,SAAhBD,EAAGE,UACa,SAAhBF,EAAGE,UACH,cAAeF,GACf,aAAcA,EAAGG,UAKrB,CAiCA,SAASC,EAAqBJ,GACxBA,EAAGG,UAAUE,SAAS,eAAe,IAGzCL,EAAGG,UAAUG,IAAI,eAAe,EAChCN,EAAGO,aAAa,2BAA4B,EAAE,EAChD,CA2CA,SAASC,EAAcC,GACrB3B,EAAmB,CAAA,CACrB,CAsEA,SAAS4B,IACPT,SAASU,iBAAiB,YAAaC,CAAoB,EAC3DX,SAASU,iBAAiB,YAAaC,CAAoB,EAC3DX,SAASU,iBAAiB,UAAWC,CAAoB,EACzDX,SAASU,iBAAiB,cAAeC,CAAoB,EAC7DX,SAASU,iBAAiB,cAAeC,CAAoB,EAC7DX,SAASU,iBAAiB,YAAaC,CAAoB,EAC3DX,SAASU,iBAAiB,YAAaC,CAAoB,EAC3DX,SAASU,iBAAiB,aAAcC,CAAoB,EAC5DX,SAASU,iBAAiB,WAAYC,CAAoB,CAC5D,CAqBA,SAASA,EAAqBH,GAGxBA,EAAEI,OAAOX,UAAgD,SAApCO,EAAEI,OAAOX,SAASY,YAAY,IAIvDhC,EAAmB,CAAA,EAzBnBmB,SAASc,oBAAoB,YAAaH,CAAoB,EAC9DX,SAASc,oBAAoB,YAAaH,CAAoB,EAC9DX,SAASc,oBAAoB,UAAWH,CAAoB,EAC5DX,SAASc,oBAAoB,cAAeH,CAAoB,EAChEX,SAASc,oBAAoB,cAAeH,CAAoB,EAChEX,SAASc,oBAAoB,YAAaH,CAAoB,EAC9DX,SAASc,oBAAoB,YAAaH,CAAoB,EAC9DX,SAASc,oBAAoB,aAAcH,CAAoB,EAC/DX,SAASc,oBAAoB,WAAYH,CAAoB,EAmB/D,CAKAX,SAASU,iBAAiB,UAzI1B,SAAmBF,GACbA,EAAEO,SAAWP,EAAEQ,QAAUR,EAAES,UAI3BnB,EAAmBlB,EAAMsC,aAAa,GACxCf,EAAqBvB,EAAMsC,aAAa,EAG1CrC,EAAmB,CAAA,EACrB,EA+HgD,CAAA,CAAI,EACpDmB,SAASU,iBAAiB,YAAaH,EAAe,CAAA,CAAI,EAC1DP,SAASU,iBAAiB,cAAeH,EAAe,CAAA,CAAI,EAC5DP,SAASU,iBAAiB,aAAcH,EAAe,CAAA,CAAI,EAC3DP,SAASU,iBAAiB,mBApE1B,SAA4BF,GACO,WAA7BR,SAASmB,kBAKPrC,IACFD,EAAmB,CAAA,GAErB4B,EAA+B,EAEnC,EAyDkE,CAAA,CAAI,EAEtEA,EAA+B,EAM/B7B,EAAM8B,iBAAiB,QAtHvB,SAAiBF,GAEf,IAtFqCT,EACjCqB,EACAC,EAoFCvB,EAAmBU,EAAEI,MAAM,IAI5B/B,IA1FiCkB,EA0FiBS,EAAEI,OAzFpDQ,EAAOrB,EAAGqB,KAGE,WAFZC,EAAUtB,EAAGsB,UAEUrC,EAAoBoC,IAAUrB,CAAAA,EAAGuB,WAI5C,aAAZD,GAA2BtB,CAAAA,EAAGuB,UAI9BvB,EAAGwB,oBA+ELpB,EAAqBK,EAAEI,MAAM,CAEjC,EA6GyC,CAAA,CAAI,EAC7ChC,EAAM8B,iBAAiB,OAxGvB,SAAgBF,GACTV,EAAmBU,EAAEI,MAAM,IAK9BJ,EAAEI,OAAOV,UAAUE,SAAS,eAAe,GAC3CI,EAAEI,OAAOY,aAAa,0BAA0B,KAMhD1C,EAA0B,CAAA,EAC1B2C,OAAOC,aAAa3C,CAA8B,EAClDA,EAAiC0C,OAAOE,WAAW,WACjD7C,EAA0B,CAAA,CAC5B,EAAG,GAAG,GA/EuBiB,EAgFLS,EAAEI,QA/EpBY,aAAa,0BAA0B,KAG/CzB,EAAGG,UAAU0B,OAAO,eAAe,EACnC7B,EAAG8B,gBAAgB,0BAA0B,EA6E/C,EAoFuC,CAAA,CAAI,EAOvCjD,EAAMkD,WAAaC,KAAKC,wBAA0BpD,EAAMqD,KAI1DrD,EAAMqD,KAAK3B,aAAa,wBAAyB,EAAE,EAC1C1B,EAAMkD,WAAaC,KAAKG,gBACjClC,SAASmC,gBAAgBjC,UAAUG,IAAI,kBAAkB,EACzDL,SAASmC,gBAAgB7B,aAAa,wBAAyB,EAAE,EAErE,CAKA,GAAsB,aAAlB,OAAOmB,QAA8C,aAApB,OAAOzB,SAA0B,CAQpE,IAAIoC,MAJJX,OAAO9C,0BAA4BA,0BAMnC,IACEyD,MAAQ,IAAIC,YAAY,8BAA8B,CAKxD,CAJE,MAAOC,IAEPF,MAAQpC,SAASuC,YAAY,aAAa,GACpCC,gBAAgB,+BAAgC,CAAA,EAAO,CAAA,EAAO,EAAE,CACxE,CAEAf,OAAOgB,cAAcL,KAAK,CAC5B,CAEwB,aAApB,OAAOpC,UAGTrB,0BAA0BqB,QAAQ"}