<html><head></head><body>{"version":3,"file":"index.umd.min.js","sources":["../src/index.js"],"sourcesContent":["const candidateSelectors = [\n 'input',\n 'select',\n 'textarea',\n 'a[href]',\n 'button',\n '[tabindex]',\n 'audio[controls]',\n 'video[controls]',\n '[contenteditable]:not([contenteditable=\"false\"])',\n 'details>summary:first-of-type',\n 'details',\n];\nconst candidateSelector = /* #__PURE__ */ candidateSelectors.join(',');\n\nconst matches =\n typeof Element === 'undefined'\n ? function () {}\n : Element.prototype.matches ||\n Element.prototype.msMatchesSelector ||\n Element.prototype.webkitMatchesSelector;\n\nconst getCandidates = function (el, includeContainer, filter) {\n let candidates = Array.prototype.slice.apply(\n el.querySelectorAll(candidateSelector)\n );\n if (includeContainer && matches.call(el, candidateSelector)) {\n candidates.unshift(el);\n }\n candidates = candidates.filter(filter);\n return candidates;\n};\n\nconst isContentEditable = function (node) 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node.tabIndex;\n};\n\nconst sortOrderedTabbables = function (a, b) {\n return a.tabIndex === b.tabIndex\n ? a.documentOrder - b.documentOrder\n : a.tabIndex - b.tabIndex;\n};\n\nconst isInput = function (node) {\n return node.tagName === 'INPUT';\n};\n\nconst isHiddenInput = function (node) {\n return isInput(node) && node.type === 'hidden';\n};\n\nconst isDetailsWithSummary = function (node) {\n const r =\n node.tagName === 'DETAILS' &&\n Array.prototype.slice\n .apply(node.children)\n .some((child) => child.tagName === 'SUMMARY');\n return r;\n};\n\nconst getCheckedRadio = function (nodes, form) {\n for (let i = 0; i < nodes.length; i++) {\n if (nodes[i].checked && nodes[i].form === form) {\n return nodes[i];\n }\n }\n};\n\nconst isTabbableRadio = function (node) {\n if (!node.name) {\n return true;\n }\n const radioScope = node.form || node.ownerDocument;\n\n const queryRadios = function (name) {\n return radioScope.querySelectorAll(\n 'input[type=\"radio\"][name=\"' + name + '\"]'\n );\n };\n\n let radioSet;\n if (\n typeof window !== 'undefined' &&\n typeof window.CSS !== 'undefined' &&\n typeof window.CSS.escape === 'function'\n ) {\n radioSet = queryRadios(window.CSS.escape(node.name));\n } else {\n try {\n radioSet = queryRadios(node.name);\n } catch (err) {\n // eslint-disable-next-line no-console\n console.error(\n 'Looks like you have a radio button with a name attribute containing invalid CSS selector characters and need the CSS.escape polyfill: %s',\n err.message\n );\n return false;\n }\n }\n\n const checked = getCheckedRadio(radioSet, node.form);\n return !checked || checked === node;\n};\n\nconst isRadio = function (node) {\n return isInput(node) && node.type === 'radio';\n};\n\nconst isNonTabbableRadio = function (node) {\n return isRadio(node) && !isTabbableRadio(node);\n};\n\nconst isHidden = function (node, displayCheck) {\n if (getComputedStyle(node).visibility === 'hidden') {\n return true;\n }\n\n const isDirectSummary = matches.call(node, 'details>summary:first-of-type');\n const nodeUnderDetails = isDirectSummary ? node.parentElement : node;\n if (matches.call(nodeUnderDetails, 'details:not([open]) *')) {\n return true;\n }\n if (!displayCheck || displayCheck === 'full') {\n while (node) {\n if (getComputedStyle(node).display === 'none') {\n return true;\n }\n node = node.parentElement;\n }\n } else if (displayCheck === 'non-zero-area') {\n const { width, height } = node.getBoundingClientRect();\n return width === 0 && height === 0;\n }\n\n return false;\n};\n\n// form fields (nested) inside a disabled fieldset are not focusable/tabbable\n// unless they are in the _first_ <legend> element of the top-most disabled\n// fieldset\nconst isDisabledFromFieldset = function (node) {\n if (\n isInput(node) ||\n node.tagName === 'SELECT' ||\n node.tagName === 'TEXTAREA' ||\n node.tagName === 'BUTTON'\n ) {\n let parentNode = node.parentElement;\n while (parentNode) {\n if (parentNode.tagName === 'FIELDSET' && parentNode.disabled) {\n // look for the first <legend> as an immediate child of the disabled\n // <fieldset>: if the node is in that legend, it'll be enabled even\n // though the fieldset is disabled; otherwise, the node is in a\n // secondary/subsequent legend, or somewhere else within the fieldset\n // (however deep nested) and it'll be disabled\n for (let i = 0; i < parentNode.children.length; i++) {\n const child = parentNode.children.item(i);\n if (child.tagName === 'LEGEND') {\n if (child.contains(node)) {\n return false;\n }\n\n // the node isn't in the first legend (in doc order), so no matter\n // where it is now, it'll be disabled\n return true;\n }\n }\n\n // the node isn't in a legend, so no matter where it is now, it'll be disabled\n return true;\n }\n\n parentNode = parentNode.parentElement;\n }\n }\n\n // else, node's tabbable/focusable state should not be affected by a fieldset's\n // enabled/disabled state\n return false;\n};\n\nconst isNodeMatchingSelectorFocusable = 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