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7 lines
14 KiB
JavaScript
7 lines
14 KiB
JavaScript
/*!
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* focus-trap 7.8.0
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* @license MIT, https://github.com/focus-trap/focus-trap/blob/master/LICENSE
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*/
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"use strict";var e=require("tabbable");function t(e,t){(null==t||t>e.length)&&(t=e.length);for(var n=0,a=Array(t);n<t;n++)a[n]=e[n];return a}function n(e,t){var n="undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"];if(!n){if(Array.isArray(e)||(n=u(e))||t){n&&(e=n);var a=0,r=function(){};return{s:r,n:function(){return a>=e.length?{done:!0}:{done:!1,value:e[a++]}},e:function(e){throw e},f:r}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,i=!0,s=!1;return{s:function(){n=n.call(e)},n:function(){var e=n.next();return i=e.done,e},e:function(e){s=!0,o=e},f:function(){try{i||null==n.return||n.return()}finally{if(s)throw o}}}}function a(e,t,n){return(t=function(e){var t=function(e,t){if("object"!=typeof e||!e)return e;var n=e[Symbol.toPrimitive];if(void 0!==n){var a=n.call(e,t);if("object"!=typeof a)return a;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==typeof t?t:t+""}(t))in e?Object.defineProperty(e,t,{value:n,enumerable:!0,configurable:!0,writable:!0}):e[t]=n,e}function r(e,t){var n=Object.keys(e);if(Object.getOwnPropertySymbols){var a=Object.getOwnPropertySymbols(e);t&&(a=a.filter((function(t){return Object.getOwnPropertyDescriptor(e,t).enumerable}))),n.push.apply(n,a)}return n}function o(e){for(var t=1;t<arguments.length;t++){var n=null!=arguments[t]?arguments[t]:{};t%2?r(Object(n),!0).forEach((function(t){a(e,t,n[t])})):Object.getOwnPropertyDescriptors?Object.defineProperties(e,Object.getOwnPropertyDescriptors(n)):r(Object(n)).forEach((function(t){Object.defineProperty(e,t,Object.getOwnPropertyDescriptor(n,t))}))}return e}function i(e){return function(e){if(Array.isArray(e))return t(e)}(e)||function(e){if("undefined"!=typeof Symbol&&null!=e[Symbol.iterator]||null!=e["@@iterator"])return Array.from(e)}(e)||u(e)||function(){throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}()}function u(e,n){if(e){if("string"==typeof e)return t(e,n);var a={}.toString.call(e).slice(8,-1);return"Object"===a&&e.constructor&&(a=e.constructor.name),"Map"===a||"Set"===a?Array.from(e):"Arguments"===a||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(a)?t(e,n):void 0}}var s={getActiveTrap:function(e){return(null==e?void 0:e.length)>0?e[e.length-1]:null},activateTrap:function(e,t){t!==s.getActiveTrap(e)&&s.pauseTrap(e);var n=e.indexOf(t);-1===n||e.splice(n,1),e.push(t)},deactivateTrap:function(e,t){var n=e.indexOf(t);-1!==n&&e.splice(n,1),s.unpauseTrap(e)},pauseTrap:function(e){var t=s.getActiveTrap(e);null==t||t._setPausedState(!0)},unpauseTrap:function(e){var t=s.getActiveTrap(e);t&&!t._isManuallyPaused()&&t._setPausedState(!1)}},c=function(e){return"Tab"===(null==e?void 0:e.key)||9===(null==e?void 0:e.keyCode)},l=function(e){return c(e)&&!e.shiftKey},d=function(e){return c(e)&&e.shiftKey},b=function(e){return setTimeout(e,0)},f=function(e){for(var t=arguments.length,n=new Array(t>1?t-1:0),a=1;a<t;a++)n[a-1]=arguments[a];return"function"==typeof e?e.apply(void 0,n):e},v=function(e){return e.target.shadowRoot&&"function"==typeof e.composedPath?e.composedPath()[0]:e.target},p=[];exports.createFocusTrap=function(t,a){var r,u=(null==a?void 0:a.document)||document,y=(null==a?void 0:a.trapStack)||p,h=o({returnFocusOnDeactivate:!0,escapeDeactivates:!0,delayInitialFocus:!0,isolateSubtrees:!1,isKeyForward:l,isKeyBackward:d},a),m={containers:[],containerGroups:[],tabbableGroups:[],adjacentElements:new Set,alreadySilent:new Set,nodeFocusedBeforeActivation:null,mostRecentlyFocusedNode:null,active:!1,paused:!1,manuallyPaused:!1,delayInitialFocusTimer:void 0,recentNavEvent:void 0},w=function(e,t,n){return e&&void 0!==e[t]?e[t]:h[n||t]},g=function(e,t){var n="function"==typeof(null==t?void 0:t.composedPath)?t.composedPath():void 0;return m.containerGroups.findIndex((function(t){var a=t.container,r=t.tabbableNodes;return a.contains(e)||(null==n?void 0:n.includes(a))||r.find((function(t){return t===e}))}))},T=function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},n=t.hasFallback,a=void 0!==n&&n,r=t.params,o=void 0===r?[]:r,s=h[e];if("function"==typeof s&&(s=s.apply(void 0,i(o))),!0===s&&(s=void 0),!s){if(void 0===s||!1===s)return s;throw new Error("`".concat(e,"` was specified but was not a node, or did not return a node"))}var c=s;if("string"==typeof s){try{c=u.querySelector(s)}catch(t){throw new Error("`".concat(e,'` appears to be an invalid selector; error="').concat(t.message,'"'))}if(!c&&!a)throw new Error("`".concat(e,"` as selector refers to no known node"))}return c},S=function(){var t=T("initialFocus",{hasFallback:!0});if(!1===t)return!1;if(void 0===t||t&&!e.isFocusable(t,h.tabbableOptions))if(g(u.activeElement)>=0)t=u.activeElement;else{var n=m.tabbableGroups[0];t=n&&n.firstTabbableNode||T("fallbackFocus")}else null===t&&(t=T("fallbackFocus"));if(!t)throw new Error("Your focus-trap needs to have at least one focusable element");return t},N=function(){if(m.containerGroups=m.containers.map((function(t){var n=e.tabbable(t,h.tabbableOptions),a=e.focusable(t,h.tabbableOptions),r=n.length>0?n[0]:void 0,o=n.length>0?n[n.length-1]:void 0,i=a.find((function(t){return e.isTabbable(t)})),u=a.slice().reverse().find((function(t){return e.isTabbable(t)})),s=!!n.find((function(t){return e.getTabIndex(t)>0}));return{container:t,tabbableNodes:n,focusableNodes:a,posTabIndexesFound:s,firstTabbableNode:r,lastTabbableNode:o,firstDomTabbableNode:i,lastDomTabbableNode:u,nextTabbableNode:function(t){var r=!(arguments.length>1&&void 0!==arguments[1])||arguments[1],o=n.indexOf(t);return o<0?r?a.slice(a.indexOf(t)+1).find((function(t){return e.isTabbable(t)})):a.slice(0,a.indexOf(t)).reverse().find((function(t){return e.isTabbable(t)})):n[o+(r?1:-1)]}}})),m.tabbableGroups=m.containerGroups.filter((function(e){return e.tabbableNodes.length>0})),m.tabbableGroups.length<=0&&!T("fallbackFocus"))throw new Error("Your focus-trap must have at least one container with at least one tabbable node in it at all times");if(m.containerGroups.find((function(e){return e.posTabIndexesFound}))&&m.containerGroups.length>1)throw new Error("At least one node with a positive tabindex was found in one of your focus-trap's multiple containers. Positive tabindexes are only supported in single-container focus-traps.")},F=function(e){var t=e.activeElement;if(t)return t.shadowRoot&&null!==t.shadowRoot.activeElement?F(t.shadowRoot):t},E=function(e){!1!==e&&e!==F(document)&&(e&&e.focus?(e.focus({preventScroll:!!h.preventScroll}),m.mostRecentlyFocusedNode=e,function(e){return e.tagName&&"input"===e.tagName.toLowerCase()&&"function"==typeof e.select}(e)&&e.select()):E(S()))},O=function(e){var t=T("setReturnFocus",{params:[e]});return t||!1!==t&&e},P=function(t){var n=t.target,a=t.event,r=t.isBackward,o=void 0!==r&&r;n=n||v(a),N();var i=null;if(m.tabbableGroups.length>0){var u=g(n,a),s=u>=0?m.containerGroups[u]:void 0;if(u<0)i=o?m.tabbableGroups[m.tabbableGroups.length-1].lastTabbableNode:m.tabbableGroups[0].firstTabbableNode;else if(o){var l=m.tabbableGroups.findIndex((function(e){var t=e.firstTabbableNode;return n===t}));if(l<0&&(s.container===n||e.isFocusable(n,h.tabbableOptions)&&!e.isTabbable(n,h.tabbableOptions)&&!s.nextTabbableNode(n,!1))&&(l=u),l>=0){var d=0===l?m.tabbableGroups.length-1:l-1,b=m.tabbableGroups[d];i=e.getTabIndex(n)>=0?b.lastTabbableNode:b.lastDomTabbableNode}else c(a)||(i=s.nextTabbableNode(n,!1))}else{var f=m.tabbableGroups.findIndex((function(e){var t=e.lastTabbableNode;return n===t}));if(f<0&&(s.container===n||e.isFocusable(n,h.tabbableOptions)&&!e.isTabbable(n,h.tabbableOptions)&&!s.nextTabbableNode(n))&&(f=u),f>=0){var p=f===m.tabbableGroups.length-1?0:f+1,y=m.tabbableGroups[p];i=e.getTabIndex(n)>=0?y.firstTabbableNode:y.firstDomTabbableNode}else c(a)||(i=s.nextTabbableNode(n))}}else i=T("fallbackFocus");return i},k=function(e){var t=v(e);g(t,e)>=0||(f(h.clickOutsideDeactivates,e)?r.deactivate({returnFocus:h.returnFocusOnDeactivate}):f(h.allowOutsideClick,e)||e.preventDefault())},I=function(t){var n=v(t),a=g(n,t)>=0;if(a||n instanceof Document)a&&(m.mostRecentlyFocusedNode=n);else{var r;t.stopImmediatePropagation();var o=!0;if(m.mostRecentlyFocusedNode)if(e.getTabIndex(m.mostRecentlyFocusedNode)>0){var i=g(m.mostRecentlyFocusedNode),u=m.containerGroups[i].tabbableNodes;if(u.length>0){var s=u.findIndex((function(e){return e===m.mostRecentlyFocusedNode}));s>=0&&(h.isKeyForward(m.recentNavEvent)?s+1<u.length&&(r=u[s+1],o=!1):s-1>=0&&(r=u[s-1],o=!1))}}else m.containerGroups.some((function(t){return t.tabbableNodes.some((function(t){return e.getTabIndex(t)>0}))}))||(o=!1);else o=!1;o&&(r=P({target:m.mostRecentlyFocusedNode,isBackward:h.isKeyBackward(m.recentNavEvent)})),E(r||(m.mostRecentlyFocusedNode||S()))}m.recentNavEvent=void 0},A=function(e){(h.isKeyForward(e)||h.isKeyBackward(e))&&function(e){var t=arguments.length>1&&void 0!==arguments[1]&&arguments[1];m.recentNavEvent=e;var n=P({event:e,isBackward:t});n&&(c(e)&&e.preventDefault(),E(n))}(e,h.isKeyBackward(e))},D=function(e){var t;"Escape"!==(null==(t=e)?void 0:t.key)&&"Esc"!==(null==t?void 0:t.key)&&27!==(null==t?void 0:t.keyCode)||!1===f(h.escapeDeactivates,e)||(e.preventDefault(),r.deactivate())},R=function(e){var t=v(e);g(t,e)>=0||f(h.clickOutsideDeactivates,e)||f(h.allowOutsideClick,e)||(e.preventDefault(),e.stopImmediatePropagation())},x=function(){if(m.active)return s.activateTrap(y,r),m.delayInitialFocusTimer=h.delayInitialFocus?b((function(){E(S())})):E(S()),u.addEventListener("focusin",I,!0),u.addEventListener("mousedown",k,{capture:!0,passive:!1}),u.addEventListener("touchstart",k,{capture:!0,passive:!1}),u.addEventListener("click",R,{capture:!0,passive:!1}),u.addEventListener("keydown",A,{capture:!0,passive:!1}),u.addEventListener("keydown",D),r},G=function(){if(m.active)return u.removeEventListener("focusin",I,!0),u.removeEventListener("mousedown",k,!0),u.removeEventListener("touchstart",k,!0),u.removeEventListener("click",R,!0),u.removeEventListener("keydown",A,!0),u.removeEventListener("keydown",D),r},j="undefined"!=typeof window&&"MutationObserver"in window?new MutationObserver((function(e){e.some((function(e){return Array.from(e.removedNodes).some((function(e){return e===m.mostRecentlyFocusedNode}))}))&&E(S())})):void 0,_=function(){j&&(j.disconnect(),m.active&&!m.paused&&m.containers.map((function(e){j.observe(e,{subtree:!0,childList:!0})})))};return r={get active(){return m.active},get paused(){return m.paused},activate:function(e){if(m.active)return this;var t,n=w(e,"onActivate"),a=w(e,"onPostActivate"),o=w(e,"checkCanFocusTrap"),i=s.getActiveTrap(y),c=!1;i&&!i.paused&&(null===(t=i._setSubtreeIsolation)||void 0===t||t.call(i,!1),c=!0);try{o||N(),m.active=!0,m.paused=!1,m.nodeFocusedBeforeActivation=F(u),null==n||n();var l=function(){o&&N(),x(),_(),h.isolateSubtrees&&r._setSubtreeIsolation(!0),null==a||a()};if(o)return o(m.containers.concat()).then(l,l),this;l()}catch(e){var d;if(i===s.getActiveTrap(y)&&c)null===(d=i._setSubtreeIsolation)||void 0===d||d.call(i,!0);throw e}return this},deactivate:function(e){if(!m.active)return this;var t=o({onDeactivate:h.onDeactivate,onPostDeactivate:h.onPostDeactivate,checkCanReturnFocus:h.checkCanReturnFocus},e);clearTimeout(m.delayInitialFocusTimer),m.delayInitialFocusTimer=void 0,m.paused||r._setSubtreeIsolation(!1),m.alreadySilent.clear(),G(),m.active=!1,m.paused=!1,_(),s.deactivateTrap(y,r);var n=w(t,"onDeactivate"),a=w(t,"onPostDeactivate"),i=w(t,"checkCanReturnFocus"),u=w(t,"returnFocus","returnFocusOnDeactivate");null==n||n();var c=function(){b((function(){u&&E(O(m.nodeFocusedBeforeActivation)),null==a||a()}))};return u&&i?(i(O(m.nodeFocusedBeforeActivation)).then(c,c),this):(c(),this)},pause:function(e){return m.active?(m.manuallyPaused=!0,this._setPausedState(!0,e)):this},unpause:function(e){return m.active?(m.manuallyPaused=!1,y[y.length-1]!==this?this:this._setPausedState(!1,e)):this},updateContainerElements:function(e){var t=[].concat(e).filter(Boolean);return m.containers=t.map((function(e){return"string"==typeof e?u.querySelector(e):e})),h.isolateSubtrees&&function(e){m.active&&!m.paused&&r._setSubtreeIsolation(!1),m.adjacentElements.clear(),m.alreadySilent.clear();var t,a=new Set,o=new Set,i=n(e);try{for(i.s();!(t=i.n()).done;){var u=t.value;a.add(u);for(var s="undefined"!=typeof ShadowRoot&&u.getRootNode()instanceof ShadowRoot,c=u;c;){a.add(c);var l=c.parentElement,d=[];l?d=l.children:!l&&s&&(d=c.getRootNode().children,l=c.getRootNode().host,s="undefined"!=typeof ShadowRoot&&l.getRootNode()instanceof ShadowRoot);var b,f=n(d);try{for(f.s();!(b=f.n()).done;){var v=b.value;o.add(v)}}catch(e){f.e(e)}finally{f.f()}c=l}}}catch(e){i.e(e)}finally{i.f()}a.forEach((function(e){o.delete(e)})),m.adjacentElements=o}(m.containers),m.active&&(N(),h.isolateSubtrees&&!m.paused&&r._setSubtreeIsolation(!0)),_(),this}},Object.defineProperties(r,{_isManuallyPaused:{value:function(){return m.manuallyPaused}},_setPausedState:{value:function(e,t){if(m.paused===e)return this;if(m.paused=e,e){var n=w(t,"onPause"),a=w(t,"onPostPause");null==n||n(),G(),_(),r._setSubtreeIsolation(!1),null==a||a()}else{var o=w(t,"onUnpause"),i=w(t,"onPostUnpause");null==o||o(),r._setSubtreeIsolation(!0),N(),x(),_(),null==i||i()}return this}},_setSubtreeIsolation:{value:function(e){h.isolateSubtrees&&m.adjacentElements.forEach((function(t){var n;if(e)if("aria-hidden"===h.isolateSubtrees)"true"!==t.ariaHidden&&"true"!==(null===(n=t.getAttribute("aria-hidden"))||void 0===n?void 0:n.toLowerCase())||m.alreadySilent.add(t),t.setAttribute("aria-hidden","true");else(t.inert||t.hasAttribute("inert"))&&m.alreadySilent.add(t),t.setAttribute("inert",!0);else if(m.alreadySilent.has(t));else if("aria-hidden"===h.isolateSubtrees)t.removeAttribute("aria-hidden");else t.removeAttribute("inert")}))}}}),r.updateContainerElements(t),r};
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//# sourceMappingURL=focus-trap.min.js.map
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