(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.focusTrap=f()}})(function(){var define,module,exports;return function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r}()({1:[function(require,module,exports){var tabbable=require("tabbable");var xtend=require("xtend");var activeFocusDelay;var activeFocusTraps=function(){var trapQueue=[];return{activateTrap:function(trap){if(trapQueue.length>0){var activeTrap=trapQueue[trapQueue.length-1];if(activeTrap!==trap){activeTrap.pause()}}var trapIndex=trapQueue.indexOf(trap);if(trapIndex===-1){trapQueue.push(trap)}else{trapQueue.splice(trapIndex,1);trapQueue.push(trap)}},deactivateTrap:function(trap){var trapIndex=trapQueue.indexOf(trap);if(trapIndex!==-1){trapQueue.splice(trapIndex,1)}if(trapQueue.length>0){trapQueue[trapQueue.length-1].unpause()}}}}();function focusTrap(element,userOptions){var doc=document;var container=typeof element==="string"?doc.querySelector(element):element;var config=xtend({returnFocusOnDeactivate:true,escapeDeactivates:true},userOptions);var state={firstTabbableNode:null,lastTabbableNode:null,nodeFocusedBeforeActivation:null,mostRecentlyFocusedNode:null,active:false,paused:false};var trap={activate:activate,deactivate:deactivate,pause:pause,unpause:unpause};return trap;function activate(activateOptions){if(state.active)return;updateTabbableNodes();state.active=true;state.paused=false;state.nodeFocusedBeforeActivation=doc.activeElement;var onActivate=activateOptions&&activateOptions.onActivate?activateOptions.onActivate:config.onActivate;if(onActivate){onActivate()}addListeners();return trap}function deactivate(deactivateOptions){if(!state.active)return;clearTimeout(activeFocusDelay);removeListeners();state.active=false;state.paused=false;activeFocusTraps.deactivateTrap(trap);var onDeactivate=deactivateOptions&&deactivateOptions.onDeactivate!==undefined?deactivateOptions.onDeactivate:config.onDeactivate;if(onDeactivate){onDeactivate()}var returnFocus=deactivateOptions&&deactivateOptions.returnFocus!==undefined?deactivateOptions.returnFocus:config.returnFocusOnDeactivate;if(returnFocus){delay(function(){tryFocus(getReturnFocusNode(state.nodeFocusedBeforeActivation))})}return trap}function pause(){if(state.paused||!state.active)return;state.paused=true;removeListeners()}function unpause(){if(!state.paused||!state.active)return;state.paused=false;updateTabbableNodes();addListeners()}function addListeners(){if(!state.active)return;activeFocusTraps.activateTrap(trap);activeFocusDelay=delay(function(){tryFocus(getInitialFocusNode())});doc.addEventListener("focusin",checkFocusIn,true);doc.addEventListener("mousedown",checkPointerDown,{capture:true,passive:false});doc.addEventListener("touchstart",checkPointerDown,{capture:true,passive:false});doc.addEventListener("click",checkClick,{capture:true,passive:false});doc.addEventListener("keydown",checkKey,{capture:true,passive:false});return trap}function removeListeners(){if(!state.active)return;doc.removeEventListener("focusin",checkFocusIn,true);doc.removeEventListener("mousedown",checkPointerDown,true);doc.removeEventListener("touchstart",checkPointerDown,true);doc.removeEventListener("click",checkClick,true);doc.removeEventListener("keydown",checkKey,true);return trap}function getNodeForOption(optionName){var optionValue=config[optionName];var node=optionValue;if(!optionValue){return null}if(typeof optionValue==="string"){node=doc.querySelector(optionValue);if(!node){throw new Error("`"+optionName+"` refers to no known node")}}if(typeof optionValue==="function"){node=optionValue();if(!node){throw new Error("`"+optionName+"` did not return a node")}}return node}function getInitialFocusNode(){var node;if(getNodeForOption("initialFocus")!==null){node=getNodeForOption("initialFocus")}else if(container.contains(doc.activeElement)){node=doc.activeElement}else{node=state.firstTabbableNode||getNodeForOption("fallbackFocus")}if(!node){throw new Error("Your focus-trap needs to have at least one focusable element")}return node}function getReturnFocusNode(previousActiveElement){var node=getNodeForOption("setReturnFocus");return node?node:previousActiveElement}function checkPointerDown(e){if(container.contains(e.target))return;if(config.clickOutsideDeactivates){deactivate({returnFocus:!tabbable.isFocusable(e.target)});return}if(config.allowOutsideClick&&config.allowOutsideClick(e)){return}e.preventDefault()}function checkFocusIn(e){if(container.contains(e.target)||e.target instanceof Document){return}e.stopImmediatePropagation();tryFocus(state.mostRecentlyFocusedNode||getInitialFocusNode())}function checkKey(e){if(config.escapeDeactivates!==false&&isEscapeEvent(e)){e.preventDefault();deactivate();return}if(isTabEvent(e)){checkTab(e);return}}function checkTab(e){updateTabbableNodes();if(e.shiftKey&&e.target===state.firstTabbableNode){e.preventDefault();tryFocus(state.lastTabbableNode);return}if(!e.shiftKey&&e.target===state.lastTabbableNode){e.preventDefault();tryFocus(state.firstTabbableNode);return}}function checkClick(e){if(config.clickOutsideDeactivates)return;if(container.contains(e.target))return;if(config.allowOutsideClick&&config.allowOutsideClick(e)){return}e.preventDefault();e.stopImmediatePropagation()}function updateTabbableNodes(){var tabbableNodes=tabbable(container);state.firstTabbableNode=tabbableNodes[0]||getInitialFocusNode();state.lastTabbableNode=tabbableNodes[tabbableNodes.length-1]||getInitialFocusNode()}function tryFocus(node){if(node===doc.activeElement)return;if(!node||!node.focus){tryFocus(getInitialFocusNode());return}node.focus();state.mostRecentlyFocusedNode=node;if(isSelectableInput(node)){node.select()}}}function isSelectableInput(node){return node.tagName&&node.tagName.toLowerCase()==="input"&&typeof node.select==="function"}function isEscapeEvent(e){return e.key==="Escape"||e.key==="Esc"||e.keyCode===27}function isTabEvent(e){return e.key==="Tab"||e.keyCode===9}function delay(fn){return setTimeout(fn,0)}module.exports=focusTrap},{tabbable:2,xtend:3}],2:[function(require,module,exports){var candidateSelectors=["input","select","textarea","a[href]","button","[tabindex]","audio[controls]","video[controls]",'[contenteditable]:not([contenteditable="false"])'];var candidateSelector=candidateSelectors.join(",");var matches=typeof Element==="undefined"?function(){}:Element.prototype.matches||Element.prototype.msMatchesSelector||Element.prototype.webkitMatchesSelector;function tabbable(el,options){options=options||{};var regularTabbables=[];var orderedTabbables=[];var candidates=el.querySelectorAll(candidateSelector);if(options.includeContainer){if(matches.call(el,candidateSelector)){candidates=Array.prototype.slice.apply(candidates);candidates.unshift(el)}}var i,candidate,candidateTabindex;for(i=0;i<candidates.length;i++){candidate=candidates[i];if(!isNodeMatchingSelectorTabbable(candidate))continue;candidateTabindex=getTabindex(candidate);if(candidateTabindex===0){regularTabbables.push(candidate)}else{orderedTabbables.push({documentOrder:i,tabIndex:candidateTabindex,node:candidate})}}var tabbableNodes=orderedTabbables.sort(sortOrderedTabbables).map(function(a){return a.node}).concat(regularTabbables);return tabbableNodes}tabbable.isTabbable=isTabbable;tabbable.isFocusable=isFocusable;function isNodeMatchingSelectorTabbable(node){if(!isNodeMatchingSelectorFocusable(node)||isNonTabbableRadio(node)||getTabindex(node)<0){return false}return true}function isTabbable(node){if(!node)throw new Error("No node provided");if(matches.call(node,candidateSelector)===false)return false;return isNodeMatchingSelectorTabbable(node)}function isNodeMatchingSelectorFocusable(node){if(node.disabled||isHiddenInput(node)||isHidden(node)){return false}return true}var focusableCandidateSelector=candidateSelectors.concat("iframe").join(",");function isFocusable(node){if(!node)throw new Error("No node provided");if(matches.call(node,focusableCandidateSelector)===false)return false;return isNodeMatchingSelectorFocusable(node)}function getTabindex(node){var tabindexAttr=parseInt(node.getAttribute("tabindex"),10);if(!isNaN(tabindexAttr))return tabindexAttr;if(isContentEditable(node))return 0;return node.tabIndex}function sortOrderedTabbables(a,b){return a.tabIndex===b.tabIndex?a.documentOrder-b.documentOrder:a.tabIndex-b.tabIndex}function isContentEditable(node){return node.contentEditable==="true"}function isInput(node){return node.tagName==="INPUT"}function isHiddenInput(node){return isInput(node)&&node.type==="hidden"}function isRadio(node){return isInput(node)&&node.type==="radio"}function isNonTabbableRadio(node){return isRadio(node)&&!isTabbableRadio(node)}function getCheckedRadio(nodes){for(var i=0;i<nodes.length;i++){if(nodes[i].checked){return nodes[i]}}}function isTabbableRadio(node){if(!node.name)return true;var radioSet=node.ownerDocument.querySelectorAll('input[type="radio"][name="'+node.name+'"]');var checked=getCheckedRadio(radioSet);return!checked||checked===node}function isHidden(node){return node.offsetParent===null||getComputedStyle(node).visibility==="hidden"}module.exports=tabbable},{}],3:[function(require,module,exports){module.exports=extend;var hasOwnProperty=Object.prototype.hasOwnProperty;function extend(){var target={};for(var i=0;i<arguments.length;i++){var source=arguments[i];for(var key in source){if(hasOwnProperty.call(source,key)){target[key]=source[key]}}}return target}},{}]},{},[1])(1)});