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1 line
8.0 KiB
JavaScript
1 line
8.0 KiB
JavaScript
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!function(e){"object"==typeof exports&&"undefined"!=typeof module||"function"!=typeof define||!define.amd?e():define("inert",e)}((function(){"use strict";var e,t,n,i,o,r,s=function(e,t,n){return t&&a(e.prototype,t),n&&a(e,n),e};function a(e,t){for(var n=0;n<t.length;n++){var i=t[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(e,i.key,i)}}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function u(e,t){d(this,u),this._inertManager=t,this._rootElement=e,this._managedNodes=new Set,this._rootElement.hasAttribute("aria-hidden")?this._savedAriaHidden=this._rootElement.getAttribute("aria-hidden"):this._savedAriaHidden=null,this._rootElement.setAttribute("aria-hidden","true"),this._makeSubtreeUnfocusable(this._rootElement),this._observer=new MutationObserver(this._onMutation.bind(this)),this._observer.observe(this._rootElement,{attributes:!0,childList:!0,subtree:!0})}function h(e,t){d(this,h),this._node=e,this._overrodeFocusMethod=!1,this._inertRoots=new Set([t]),this._savedTabIndex=null,this._destroyed=!1,this.ensureUntabbable()}function l(e){if(d(this,l),!e)throw new Error("Missing required argument; InertManager needs to wrap a document.");this._document=e,this._managedNodes=new Map,this._inertRoots=new Map,this._observer=new MutationObserver(this._watchForInert.bind(this)),_(e.head||e.body||e.documentElement),"loading"===e.readyState?e.addEventListener("DOMContentLoaded",this._onDocumentLoaded.bind(this)):this._onDocumentLoaded()}function c(e,t,n){if(e.nodeType==Node.ELEMENT_NODE){var i=e;if(s=(t&&t(i),i.shadowRoot))return void c(s,t,s);if("content"==i.localName){for(var o=(s=i).getDistributedNodes?s.getDistributedNodes():[],r=0;r<o.length;r++)c(o[r],t,n);return}if("slot"==i.localName){for(var s,a=(s=i).assignedNodes?s.assignedNodes({flatten:!0}):[],d=0;d<a.length;d++)c(a[d],t,n);return}}for(var u=e.firstChild;null!=u;)c(u,t,n),u=u.nextSibling}function _(e){var t;e.querySelector("style#inert-style, link#inert-style")||((t=document.createElement("style")).setAttribute("id","inert-style"),t.textContent="\n[inert] {\n pointer-events: none;\n cursor: default;\n}\n\n[inert], [inert] * {\n -webkit-user-select: none;\n -moz-user-select: none;\n -ms-user-select: none;\n user-select: none;\n}\n",e.appendChild(t))}"undefined"!=typeof window&&(e=Array.prototype.slice,t=Element.prototype.matches||Element.prototype.msMatchesSelector,n=["a[href]","area[href]","input:not([disabled])","select:not([disabled])","textarea:not([disabled])","button:not([disabled])","details","summary","iframe","object","embed","[contenteditable]"].join(","),s(u,[{key:"destructor",value:function(){this._observer.disconnect(),this._rootElement&&(null!==this._savedAriaHidden?this._rootElement.setAttribute("aria-hidden",this._savedAriaHidden):this._rootElement.removeAttribute("aria-hidden")),this._managedNodes.forEach((function(e){this._unmanageNode(e.node)}),this),this._observer=null,this._rootElement=null,this._managedNodes=null,this._inertManager=null}},{key:"_makeSubtreeUnfocusable",value:function(e){var t=this,n=(c(e,(function(e){return t._visitNode(e)})),document.activeElement);if(!document.body.contains(e)){for(var i=e,o=void 0;i;){if(i.nodeType===Node.DOCUMENT_FRAGMENT_NODE){o=i;break}i=i.parentNode}o&&(n=o.activeElement)}e.contains(n)&&(n.blur(),n===document.activeElement&&document.body.focus())}},{key:"_visitNode",value:function(e){e.nodeType===Node.ELEMENT_NODE&&(e!==this._rootElement&&e.hasAttribute("inert")&&this._adoptInertRoot(e),(t.call(e,n)||e.hasAttribute("tabindex"))&&this._manageNode(e))}},{key:"_manageNode",value:function(e){e=this._inertManager.register(e,this),this._managedNodes.add(e)}},{key:"_unmanageNode",value:function(e){(e=this._inertManager.deregister(e,this))&&this._managedNodes.delete(e)}},{key:"_unmanageSubtree",value:function(e){var t=this;c(e,(function(e){return t._unmanageNode(e)}))}},{key:"_adoptInertRoot",value:function(e){var t=this._inertManager.getInertRoot(e);t||(this._inertManager.setInert(e,!0),t=this._inertManager.get
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