cssregions.min.js

/*! Copyright 2012 Adobe Systems Inc.;
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at

* http://www.apache.org/licenses/LICENSE-2.0

* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/"use strict";function myEventStream(e,t,n){var o=this;t||(t=function(){}),n||(n=e);var r=!1,s=!1,i=!1,a=null,c=function(){i=!0;try{a&&a(o)}catch(e){setImmediate(function(){throw e})}i&&l()};this.schedule=function(t){if(s)throw Error("Cannot schedule on a disconnected event stream");if(r&&!i)throw Error("Cannot schedule on an already-scheduled event stream");a=t,i=!1,r?n(c):(e(c),r=!0)};var l=this.dispose=function(){r&&(t(),o=null,c=null,a=null,r=!1,s=!0,i=!1)}}function myAnimationFrameEventStream(){var e=0;myEventStream.call(this,function(t){e=requestAnimationFrame(t)},function(){cancelAnimationFrame(e)})}function myTimeoutEventStream(e){var t=0,n="number"==typeof e?+e:"timeout"in e?+e.timeout:333;myEventStream.call(this,function(e){t=setTimeout(e,n)},function(){clearTimeout(t)})}function myMouseEventStream(){var e="PointerEvent"in window?"pointermove":"MSPointerEvent"in window?"MSPointerMove":"mousemove",t=!1,n=null,o=function(){t||(window.removeEventListener(e,o,!0),t=requestAnimationFrame(n))};myEventStream.call(this,function(t){n=t,window.addEventListener(e,o,!0)},function(){window.removeEventListener(e,o,!0),cancelAnimationFrame(t),o=null,n=null,t=!1},function(r){n=r,t=!1,window.addEventListener(e,o,!0)})}function myMouseButtonEventStream(){var e="PointerEvent"in window?"pointerup":"MSPointerEvent"in window?"MSPointerUp":"mouseup",t="PointerEvent"in window?"pointerdown":"MSPointerEvent"in window?"MSPointerDown":"mousedown",n=!1,o=null,r=function(){n||(window.removeEventListener(e,r,!0),window.removeEventListener(t,r,!0),n=requestAnimationFrame(o))};myEventStream.call(this,function(n){o=n,window.addEventListener(e,r,!0),window.addEventListener(t,r,!0)},function(){window.removeEventListener(e,r,!0),window.removeEventListener(t,r,!0),cancelAnimationFrame(n),r=null,o=null,n=!1},function(s){o=s,n=!1,window.addEventListener(e,r,!0),window.addEventListener(t,r,!0)})}function myFocusEventStream(){var e=null,t=null,n=!1,o=0,r=function(){t==document.activeElement&&n==document.hasFocus()?setTimeout(r,333):(t=document.activeElement,n=document.hasFocus(),e())};myEventStream.call(this,function(t){e=t,o=setTimeout(r,500)},function(){clearTimeout(o),r=null,e=null,o=0},function(t){e=t,o=setTimeout(r,100)})}function myCompositeEventStream(e,t){var n=this,o=null,r=!1,s=!1,i=function(i){i==e&&(r=!0),i==t&&(s=!0),r&&s||o(n)};myEventStream.call(this,function(n){o=n,e.schedule(i),t.schedule(i)},function(){e.dispose(),t.dispose()},function(n){o=n,r&&e.schedule(i),s&&t.schedule(i),r=s=!1})}function getCommonAncestor(e){if(!e||!e.length)return null;if(2>e.length)return e[0];var t=e[0];e:for(;t&&9!=t.nodeType;){for(var n=e.length;--n;)if(!t.contains(e[n])){t=t.parentNode;continue e}return t}return null}if(!document.caretRangeFromPoint)if(document.caretPositionFromPoint)document.caretRangeFromPoint=function(e,t){var n=document.createRange(),o=document.caretPositionFromPoint(e,t);return o.offsetNode&&(n.setStart(o.offsetNode,o.offset),n.setEnd(o.offsetNode,o.offset)),n};else if((document.body||document.createElement("body")).createTextRange){var TextRangeUtils={convertToDOMRange:function(e,t){var n=function(e,n,o){var r=t.createElement("a"),s=n.duplicate();s.collapse(o);var i=s.parentElement();do i.insertBefore(r,r.previousSibling),s.moveToElementText(r);while(s.compareEndPoints(o?"StartToStart":"StartToEnd",n)>0&&r.previousSibling);-1==s.compareEndPoints(o?"StartToStart":"StartToEnd",n)&&r.nextSibling?(s.setEndPoint(o?"EndToStart":"EndToEnd",n),e[o?"setStart":"setEnd"](r.nextSibling,s.text.length)):e[o?"setStartBefore":"setEndBefore"](r),r.parentNode.removeChild(r)};t||(t=window.document);var o=t.createRange();return n(o,e,!0),n(o,e,!1),o},convertFromDOMRange:function(e){var t=function(e,t,n){var o=t[n?"startContainer":"endContainer"],r=t[n?"startOffset":"endOffset"],s=0,i=DOMUtils.isDataNode(o)?o:o.childNodes[r],a=DOMUtils.isDataNode(o)?o.parentNode:o;(3==o.nodeType||4==o.nodeType)&&(s=r);var c=t._document.createElement("a");a.insertBefore(c,i);var l=t._document.body.createTextRange();l.moveToElementText(c),c.parentNode.removeChild(c),e.setEndPoint(n?"StartToStart":"EndToStart",l),e[n?"moveStart":"moveEnd"]("character",s)},n=e._document.body.createTextRange();return t(n,e,!0),t(n,e,!1),n}};document.caretRangeFromPoint=function(e,t){for(var n=40,o=document.body.createTextRange(),r=n;r;r-=4){var s=e;try{return o.moveToPoint(s,r+t-n),TextRangeUtils.convertToDOMRange(o)}catch(i){}}try{var a=document.elementFromPoint(e-1,t-1),o=document.createRange();return o.setStartAfter(a),o}catch(i){return null}}}Range.prototype.myMoveOneCharLeft=function(){var e=this;if(e.endOffset>0){var t=e.endContainer.childNodes[e.endOffset-1];t&&t.lastChild?e.setEndAfter(t.lastChild):t&&t.nodeType==t.TEXT_NODE?e.setEnd(t,t.nodeValue.length):e.setEnd(e.endContainer,e.endOffset-1)}else e.setEndBefore(e.endContainer)},Range.prototype.myMoveOneCharRight=function(){var e=this,t=e.startContainer.nodeType==e.startContainer.TEXT_NODE?e.startContainer.nodeValue.length:e.startContainer.childNodes.length;if(t>e.startOffset){var n=e.endContainer.childNodes[e.endOffset];n&&n.firstChild?e.setStartBefore(n.firstChild):n&&n.nodeType==n.TEXT_NODE&&""!=n.nodeValue?e.setStart(n,0):e.setStart(e.startContainer,e.startOffset+1)}else e.setStartAfter(e.endContainer);e.setEnd(e.startContainer,e.startOffset)},Range.prototype.myMoveTowardRight=function(){var e=this,t=e.startContainer.nodeType==e.startContainer.TEXT_NODE,n=t?e.startContainer.nodeValue.length:e.startContainer.childNodes.length;if(n>e.startOffset){var o=e.endContainer.childNodes[e.endOffset];if(o&&o.firstChild)e.setStartBefore(o.firstChild);else if(o&&o.nodeType==o.TEXT_NODE&&""!=o.nodeValue)e.setStart(o,0);else if(t){for(var r=e.startContainer.nodeValue,s=e.startOffset,i=r[s++];n>s&&/^\w$/.test(i);)i=r[s++];e.setStart(e.startContainer,s)}else e.setStart(e.startContainer,e.startOffset+1)}else e.setStartAfter(e.endContainer);e.setEnd(e.startContainer,e.startOffset)},Range.prototype.myMoveEndOneCharLeft=function(){var e=this;if(e.endOffset>0){var t=e.endContainer.childNodes[e.endOffset-1];t&&t.lastChild?e.setEndAfter(t.lastChild):t&&t.nodeType==t.TEXT_NODE?e.setEnd(t,t.nodeValue.length):e.setEnd(e.endContainer,e.endOffset-1)}else e.setEndBefore(e.endContainer)},Range.prototype.myMoveEndOneCharRight=function(){var e=this,t=e.endContainer.nodeType==e.endContainer.TEXT_NODE?e.endContainer.nodeValue.length:e.endContainer.childNodes.length;if(t>e.endOffset){var n=e.endContainer.childNodes[e.endOffset];n&&n.firstChild?e.setEndBefore(n.firstChild):n&&n.nodeType==n.TEXT_NODE?e.setEnd(n,0):e.setEnd(e.endContainer,e.endOffset+1)}else e.setEndAfter(e.endContainer)},Range.prototype.myGetSelectionRect=function(){var e=this.getBoundingClientRect();if(e||(e={top:0,right:0,bottom:0,left:0,width:0,height:0}),this.collapsed&&0===e.top&&0===e.bottom){var t=this.cloneRange(),n=!1;t.collapse(!1),0==t.startOffset?(t.myMoveTowardRight(),n=!0,t.setStart(t.endContainer,0)):(t.setStart(this.startContainer,this.startOffset-1),n=!1);var e=t.myGetSelectionRect();return n?{left:e.left,right:e.left,width:0,top:e.top,bottom:e.bottom,height:e.height}:{left:e.right,right:e.right,width:0,top:e.top,bottom:e.bottom,height:e.height}}return e},window.Element||(window.Element=window.HTMLElement),window.Node||(window.Node={}),Node.getBoundingClientRect=function(e){if(e.getBoundingClientRect)var t=e.getBoundingClientRect();else{var n=document.createRange();n.selectNode(e);var t=n.getBoundingClientRect()}return t||(t={top:0,right:0,bottom:0,left:0,width:0,height:0}),t},Node.getClientRects=function(e){if(e.getBoundingClientRect)return e.getClientRects();var t=document.createRange();return t.selectNode(e),t.getClientRects()},Node.contains=function(e,t){return 1!=t.nodeType?t.parentNode?t.parentNode==e||e.contains(t.parentNode):!1:e.contains(t)},Range.prototype.myGetExtensionRect=function(){var e=this.myGetSelectionRect(),t=this.endContainer.childNodes[this.endOffset-1];if(t){var 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cssSyntax={tokenize:function(){},parse:function(){},parseCSSValue:function(e,t){if(t){var n=new cssSyntax.TokenList;return n.asCSSString=e,n}var n=e?cssSyntax.parse("*{a:"+e+"}").value[0].value[0].value:new cssSyntax.TokenList;return n.asCSSString=e,n}};(function(){function e(e){return g(e,48,57)}function t(t){return e(t)||g(t,65,70)||g(t,97,102)}function n(e){return g(e,65,90)}function o(e){return g(e,97,122)}function r(e){return n(e)||o(e)}function s(e){return e>=160}function i(e){return r(e)||s(e)||95==e}function a(t){return i(t)||e(t)||45==t}function c(e){return g(e,0,8)||g(e,14,31)||g(e,127,159)}function l(e){return 10==e||12==e}function d(e){return l(e)||9==e||32==e}function u(e){return l(e)||isNaN(e)}function f(n,o){void 0==o&&(o={transformFunctionWhitespace:!1,scientificNotation:!1});for(var r,s,f=-1,p=new h,g="data",y=0,I=0,_=0,J=function(){y+=1,_=I,I=0},G={line:y,column:I},z=function(e){return void 0===e&&(e=1),n.charCodeAt(f+e)},K=function(e){return void 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3:e.parentNode.getAttribute("data-css-regions-fragment-source")||(e.cssRegionsSavedNodeValue=e.nodeValue,e.nodeValue="",(navigator.userAgent.indexOf("MSIE")>0||navigator.userAgent.indexOf("Trident")>0)&&-1==cssRegionsHelpers.listOfTextNodesForIE.indexOf(e)&&cssRegionsHelpers.listOfTextNodesForIE.push(e));break;case 1:if(e.hasAttribute("data-css-regions-cloning")&&(e.removeAttribute("data-css-regions-cloning"),e.setAttribute("data-css-regions-cloned",!0),e.currentStyle&&""+e.currentStyle.display),n===void 0)return;case 9:case 11:for(o=e.firstChild;o;)r=o.nextSibling,t(o),o=r}}e.forEach(t)},unhideTextNodesFromFragmentSource:function(e){function t(e){var n,o;switch(e.nodeType){case 3:"cssRegionsSavedNodeValue"in e&&(e.nodeValue=e.cssRegionsSavedNodeValue,delete e.cssRegionsSavedNodeValue);break;case 1:if("undefined"==typeof k)return;case 9:case 11:for(n=e.firstChild;n;)o=n.nextSibling,t(n),n=o}}e.forEach(t)},unmarkNodesAsFragmentSource:function(e){function t(e,n){var o,r;switch(e.nodeType){case 3:"cssRegionsSavedNodeValue"in e&&(e.nodeValue=e.cssRegionsSavedNodeValue,delete e.cssRegionsSavedNodeValue);break;case 1:e.removeAttribute("data-css-regions-cloned"),e.removeAttribute("data-css-regions-fragment-source"),e.currentStyle&&""+e.currentStyle.display,"OL"==e.tagName&&cssRegionsHelpers.unexpandListValues(e),n!==void 0&&"LI"==e.tagName&&cssRegionsHelpers.unexpandListValues(e.parentNode);case 9:case 11:for(o=e.firstChild;o;)r=o.nextSibling,t(o),o=r}}e.forEach(t)},transformFragmentSourceToFragments:function(e){function t(e){var n,o;switch(e.nodeType){case 1:var r=e.getAttribute("data-css-regions-fragment-source");e.removeAttribute("data-css-regions-fragment-source"),e.removeAttribute("data-css-regions-cloning"),e.removeAttribute("data-css-regions-cloned"),e.setAttribute("data-css-regions-fragment-of",r),e.id&&(e.id+="--fragment");case 9:case 11:for(n=e.firstChild;n;)o=n.nextSibling,t(n),n=o}}e.forEach(t)},embedTrailingWhiteSpaceNodes:function(e){function t(e){var o,r;switch(e.nodeType){case 3:if(!e.previousSibling){"pre"!==getComputedStyle(e.parentNode).whiteSpace.substring(0,3)&&n.test(e.nodeValue)&&(e.parentNode.setAttribute("data-whitespace-before",e.nodeValue),e.parentNode.removeChild(e));break}if(!e.nextSibling){"pre"!==getComputedStyle(e.parentNode).whiteSpace.substring(0,3)&&n.test(e.nodeValue)&&(e.parentNode.setAttribute("data-whitespace-after",e.nodeValue),e.parentNode.removeChild(e));break}break;case 1:case 9:case 11:for(o=e.firstChild;o;)r=o.nextSibling,t(o),o=r}}var n=/^\s*$/;t(e)},unembedTrailingWhiteSpaceNodes:function(e){function t(e){var n,o;switch(e.nodeType){case 1:var r="";(r=e.getAttribute("data-whitespace-before"))&&""==e.getAttribute("data-starting-fragment")&&e.getAttribute("data-special-starting-fragment","")&&e.insertBefore(document.createTextNode(r),e.firstChild),e.removeAttribute("data-whitespace-before"),(r=e.getAttribute("data-whitespace-after"))&&""==e.getAttribute("data-continued-fragment")&&e.getAttribute("data-special-continued-fragment","")&&e.insertAfter(document.createTextNode(r),e.lastChild),e.removeAttribute("data-whitespace-after");case 9:case 11:for(n=e.firstChild;n;)o=n.nextSibling,t(n),n=o}}t(e)},copyStyle:function(e,t){function n(e,t,o){var r,s,i,a;switch(e.nodeType){case 1:for(var c=e.currentStyle&&!window.opera?void 0:cssCascade.findAllMatchingRules(e),l=cssCascade.allCSSProperties||cssCascade.getAllCSSProperties(),d=l.length;d--;)if(l[d]in cssCascade.computationUnsafeProperties||"-"==l[d][0]){var u=cssCascade.getSpecifiedStyle(e,l[d],c);if(u&&u.length)t.style.setProperty(l[d],u.toCSSString());else if(o&&e.parentNode&&"-"!=l[d][0]){if(!(l[d]in cssCascade.inheritingProperties))continue;if("font-size"==l[d]||!(l[d]in cssCascade.computationUnsafeProperties)&&"-"!=l[d][0]){var f=getComputedStyle(e).getPropertyValue(l[d]);t.style.setProperty(l[d],f);continue}var u=cssCascade.getSpecifiedStyle(e,l[d],c);u&&u.length&&t.style.setProperty(l[d],u.toCSSString())}}else{var f=getComputedStyle(e).getPropertyValue(l[d]),p=cssCascade.getDefaultStyleForTag(e.tagName).getPropertyValue(l[d]);f!=p&&t.style.setProperty(l[d],f)}var g=function(e,t,n){var o=!!cssCascade.findAllMatchingRulesWithPseudo(e,n.substr(1)).length;if(o){var r=getComputedStyle(e,n);if("none"!=r.content){var s=document.createElement("style");s.setAttribute("data-no-css-polyfill",!0);for(var i="",a=cssCascade.allCSSProperties||cssCascade.getAllCSSProperties(),c=a.length;c--;){var l=r.getPropertyValue(a[c]);i+=a[c]+":"+l+";"}s.textContent='[data-css-regions-fragment-of="'+e.getAttribute("data-css-regions-fragment-source")+'"]'+":not([data-css-regions-starting-fragment]):not([data-css-regions-special-starting-fragment])"+":"+n+"{"+i+"}",t.parentNode.insertBefore(s,t)}}};g(e,t,":before"),g(e,t,":after"),cssRegionsHelpers.retargetEvents(e,t);case 9:case 11:for(r=e.firstChild,i=t.firstChild;r;)s=r.nextSibling,a=i.nextSibling,r.cssRegionsLastFlowIntoName&&"element"===r.cssRegionsLastFlowIntoType?t.removeChild(i):n(r,i),r=s,i=a}}n(e,t,!0)},retargetEvents:function(e,t){var n="cssRegionsHelpers.retargetEvent(this,event)";t.setAttribute("onclick",n),t.setAttribute("ondblclick",n),t.setAttribute("onmousedown",n),t.setAttribute("onmouseup",n),t.setAttribute("onmousein",n),t.setAttribute("onmouseout",n),t.setAttribute("onmouseenter",n),t.setAttribute("onmouseleave",n)},retargetEvent:function(e,t){var n=e.cssRegionsFragmentSource||(e.cssRegionsFragmentSource=document.querySelector('[data-css-regions-fragment-source="'+e.getAttribute("data-css-regions-fragment-of")+'"]'));if(n){var o=basicObjectModel.cloneEvent(t);if(n.dispatchEvent(o),t.stopImmediatePropagation?t.stopImmediatePropagation():t.stopPropagation(),o.isDefaultPrevented||o.defaultPrevented)return t.preventDefault(),!1}}},cssRegions={layoutContent:function(e,t,n,o){if(!e)return n.ondone(!!t.hasChildNodes());if(!e.length)return n.ondone(!!t.hasChildNodes());o||(o=Date.now());for(var r=e.pop();;){var s=getComputedStyle(r).display;if("none"==s||-1!==s.indexOf("inline")){if(r=e.pop())continue;return n.ondone(!!t.hasChildNodes())}break}if(r.cssRegionsWrapper?(r.cssRegionsWrapper.cssRegionHost=r,r=r.cssRegionsWrapper):r.cssRegionHost=r,r.innerHTML="",!t.hasChildNodes()){r.cssRegionHost.cssRegionsLastOffsetHeight=r.cssRegionHost.offsetHeight,r.cssRegionHost.cssRegionsLastOffsetWidth=r.cssRegionHost.offsetWidth,r.cssRegionHost.regionOverset="empty";var i={ondone:function(){},onprogress:function(e){e()}};return cssRegions.layoutContent(e,t,i,o),n.ondone(!1)}return r.appendChild(t),0!==e.length?this.layoutContentInNextRegionsWhenReady(r,e,t,n,o):this.layoutContentInLastRegionWhenReady(r,e,t,n,o)},layoutContentInNextRegionsWhenReady:function(e,t,n,o,r){for(var s=e.getElementsByTagName("img"),i=s.length;i--;)if(!s[i].complete&&!s[i].hasAttribute("height"))return setTimeout(function(){this.layoutContentInNextRegionsWhenReady(e,t,n,o,r+32)}.bind(this),16);var a=e.cssRegionHost.scrollHeight!=e.cssRegionHost.offsetHeight,c=a;if(!c)for(var l=e.firstElementChild,d=e.lastElementChild,u=l;u;){if(u!=l&&/(region|all|always)/i.test(cssCascade.getSpecifiedStyle(u,"break-before",void 0,!0).toCSSString())){c=!0;break}if(u!=d&&/(region|all|always)/i.test(cssCascade.getSpecifiedStyle(u,"break-after",void 0,!0).toCSSString())){u=u.nextElementSibling,c=!0;break}u=u.nextElementSibling}return n=c?this.extractOverflowingContent(e):document.createDocumentFragment(),e.cssRegionHost.regionOverset=n.hasChildNodes()?"overset":"fit",e.cssRegionHost.cssRegionsLastOffsetHeight=e.cssRegionHost.offsetHeight,e.cssRegionHost.cssRegionsLastOffsetWidth=e.cssRegionHost.offsetWidth,r+200>Date.now()?cssRegions.layoutContent(t,n,o,r):o.onprogress(function(){cssRegions.layoutContent(t,n,o)})},layoutContentInLastRegionWhenReady:function(e,t,n,o,r){for(var s=e.getElementsByTagName("img"),i=s.length;i--;)if(!s[i].complete&&!s[i].hasAttribute("height"))return setTimeout(function(){this.layoutContentInLastRegionWhenReady(e,t,n,o,r+32)}.bind(this),32);if("break"==cssCascade.getSpecifiedStyle(e.cssRegionHost,"region-fragment",void 0,!0).toCSSString().trim().toLowerCase()){var a=this.extractOverflowingContent(e).hasChildNodes();return e.cssRegionHost.cssRegionsLastOffsetHeight=e.cssRegionHost.offsetHeight,e.cssRegionHost.cssRegionsLastOffsetWidth=e.cssRegionHost.offsetWidth,o.ondone(a)}return e.cssRegionHost.cssRegionsLastOffsetHeight=e.cssRegionHost.offsetHeight,e.cssRegionHost.cssRegionsLastOffsetWidth=e.cssRegionHost.offsetWidth,o.ondone(e.cssRegionHost.offsetHeight!=e.cssRegionHost.scrollHeight)
},extractOverflowingContent:function(e,t){cssRegionsHelpers.embedTrailingWhiteSpaceNodes(e);var n=e.cssRegionHost.offsetHeight,o=e.cssRegionHost.offsetWidth,r=e.cssRegionHost.getBoundingClientRect();r={top:r.top,bottom:r.bottom,left:r.left,right:r.right};var s=parseInt(getComputedStyle(e.cssRegionHost).paddingBottom);s+=parseInt(getComputedStyle(e.cssRegionHost).borderBottomWidth),r.bottom-=s,n-=s;try{var i=t?document.createRange():document.caretRangeFromPoint(r.left+o-1,r.top+n-1)}catch(a){try{cssConsole.error(a.message),cssConsole.dir(a)}catch(a){}}var c=function(){},l=function(){if(0==d.bottom&&0==d.top&&0==d.left&&0==d.right){var e=-(document.documentElement.scrollTop||document.body.scrollTop),t=-(document.documentElement.scrollLeft||document.body.scrollLeft);d={width:0,heigth:0,top:e,bottom:e,left:t,right:t}}};(!i||e!==i.endContainer&&!Node.contains(e,i.endContainer))&&(i&&i.endContainer===e.cssRegionHost&&i.endOffset==i.endContainer.childNodes.length?i.setEnd(e,e.childNodes.length):(i=i||document.createRange(),i.setStart(e,0),i.setEnd(e,0),t=!0));do{var d=i.myGetExtensionRect();for(l(),c();(i.endContainer!=e||i.endOffset!=i.endContainer.childNodes.length)&&d.bottom<=r.top+n;){c();var u=i.endContainer.childNodes[i.endOffset],f=!u||Node.getBoundingClientRect(u);u&&f.bottom<=r.top+n?(i.setStartAfter(u),i.setEndAfter(u),d=f,l()):(i.myMoveTowardRight(),d=i.myGetExtensionRect(),l())}for(;(i.endContainer!=e||0!=i.endOffset)&&d.bottom>r.top+n;)c(),i.myMoveOneCharLeft(),d=i.myGetExtensionRect(),l();c();var p=!1;if(!t)for(var g=i.endContainer;g=cssRegionsHelpers.getAllLevelPreviousSibling(g,e);)if(Node.getBoundingClientRect(g).bottom>r.top+n){i.setStart(e,0),i.setEnd(e,0),p=!0,t=!0;break}}while(p);for(var g=i.endContainer;g!==e;)cssBreak.isMonolithic(g)&&i.setEndBefore(g),g=g.parentNode;(!i||e!==i.endContainer&&!Node.contains(e,i.endContainer))&&(cssConsole.dir(i.cloneRange()),i.setStart(e,e.childNodes.length),i.setEnd(e,e.childNodes.length));var m=i.startContainer.childNodes[i.startOffset],g=m;if(cssBreak.hasAnyInlineFlow(i.startContainer))for(;g&&(g=g.previousSibling)&&cssBreak.areInSameSingleLine(g,m);)if(m=g,g instanceof Element)i.setEndBefore(g);else{var h=Node.getClientRects(g);if(h.length>1){var y=h[h.length-2].bottom;for(i.setEnd(g,g.nodeValue.length);d.bottom>y;)i.myMoveOneCharLeft(),d=i.myGetExtensionRect(),l();i.endContainer!==g&&i.setEndBefore(g)}else i.setEndBefore(g)}if((!i||e!==i.endContainer&&!Node.contains(e,i.endContainer))&&(cssConsole.dir(i.cloneRange()),i.setStart(e,e.childNodes.length),i.setEnd(e,e.childNodes.length)),i.endContainer===e&&0===i.endOffset&&i.endOffset!==e.childNodes.length)do{i.myMoveTowardRight();for(var g=i.endContainer;g&&g!==e;)cssBreak.isMonolithic(g)&&(i.setStartAfter(g),i.setEndAfter(g)),g=g.parentNode}while(!cssBreak.isPossibleBreakPoint(i,e)&&(i.endContainer!==e||i.endOffset!==e.childNodes.length));(!i||e!==i.endContainer&&!Node.contains(e,i.endContainer))&&(cssConsole.dir(i.cloneRange()),i.setStart(e,e.childNodes.length),i.setEnd(e,e.childNodes.length));var g=i.endContainer;g.hasChildNodes()&&(g=g.childNodes[i.endOffset-1]);var m=i.endContainer.firstChild;do g.style&&(g!=m&&/(region|all|always)/i.test(cssCascade.getSpecifiedStyle(g,"break-before",void 0,!0).toCSSString())&&(i.setStartBefore(g),i.setEndBefore(g),t=!0),g!==e&&/(region|all|always)/i.test(cssCascade.getSpecifiedStyle(g,"break-after",void 0,!0).toCSSString())&&(i.setStartAfter(g),i.setEndAfter(g),t=!0));while(g=cssRegionsHelpers.getAllLevelPreviousSibling(g,e));var g=i.endContainer,v=[];for(g.nodeType!==g.ELEMENT_NODE&&(g=g.parentNode);g!==e;)v.push(g),g=g.parentNode;if(i.endOffset==i.endContainer.childNodes.length&&i.endContainer!==e){var S=i.endContainer.getBoundingClientRect(),w=S.bottom-(r.top+n),C=getComputedStyle(i.endContainer),b=parseFloat(C.borderBottomWidth),E=parseFloat(C.paddingBottom),R=w;if(w>b){R=b,w-=R;var T=w;T>E?(T=E,w-=T):w=0}else w=0;if("number"==typeof R&&0!==R){var k=parseInt(C.borderBottomLeftRadius)>0||parseInt(C.borderBottomRightRadius)>0;k&&(R=b)}}if(0==i.endOffset&&i.endContainer!==e){var S=i.endContainer.getBoundingClientRect(),N=r.top+n-r.top,C=getComputedStyle(i.endContainer),b=parseFloat(C.borderTopWidth),E=parseFloat(C.paddingTop),w=b+E-N;if(w>0){var O=w;if(w>E){O=E,w-=O;var A=w;A>b?(A=b,w-=A):w=0}else w=0}}for(var x=v.length-1;x>=0;x--)v[x].setAttribute("data-css-continued-fragment",!0),getComputedStyle(v[x]).display.indexOf("block")>=0&&v[x].setAttribute("data-css-continued-block-fragment",!0);"number"==typeof R&&(v[0].removeAttribute("data-css-continued-fragment"),v[0].setAttribute("data-css-special-continued-fragment",!0),v[0].style.borderBottomWidth=b-R+"px"),"number"==typeof T&&(v[0].removeAttribute("data-css-continued-fragment"),v[0].setAttribute("data-css-special-continued-fragment",!0),v[0].style.paddingBottom=E-T+"px"),"number"==typeof A&&(v[0].removeAttribute("data-css-continued-fragment"),v[0].setAttribute("data-css-continued-fragment",!0),v[0].style.borderTopWidth=b-A+"px"),"number"==typeof O&&(v[0].removeAttribute("data-css-continued-fragment"),v[0].setAttribute("data-css-special-continued-fragment",!0),v[0].style.paddingTop=E-O+"px"),i.setEnd(e,e.childNodes.length);for(var L=i.extractContents(),F=L.querySelectorAll("[data-css-continued-fragment]"),x=F.length;x--;)F[x].removeAttribute("data-css-continued-fragment"),F[x].setAttribute("data-css-starting-fragment",!0);var I=L.querySelector("[data-css-special-continued-fragment]");if(I)I.removeAttribute("data-css-special-continued-fragment"),I.setAttribute("data-css-starting-fragment",!0),"number"==typeof R&&(I.style.borderBottomWidth=R+"px"),I.style.paddingBottom="number"==typeof T?T:"0px","number"==typeof A&&(I.removeAttribute("data-css-starting-fragment"),I.setAttribute("data-css-special-starting-fragment",!0),I.style.borderTopWidth=A+"px"),"number"==typeof O&&(I.removeAttribute("data-css-starting-fragment"),I.setAttribute("data-css-special-starting-fragment",!0),I.style.paddingTop=O+"px",I.style.paddingBottom="0px",I.style.borderBottomWidth="0px");else if("number"==typeof R)try{throw Error()}catch(a){setImmediate(function(){throw a})}else if("number"==typeof O)try{throw Error()}catch(a){setImmediate(function(){throw a})}return cssRegionsHelpers.unembedTrailingWhiteSpaceNodes(e),cssRegionsHelpers.unembedTrailingWhiteSpaceNodes(L),L},enablePolyfill:function(){var e=document.createElement("style");e.setAttribute("data-css-no-polyfill",!0),e.textContent="cssregion,[data-css-region]>*,[data-css-regions-fragment-source]:not([data-css-regions-cloning]),[data-css-regions-fragment-source][data-css-regions-cloned]{display:none !important}[data-css-region]>cssregion:last-of-type{display:inline !important}[data-css-region]{content:normal !important}[data-css-special-continued-fragment]{counter-reset:none !important;counter-increment:none !important;margin-bottom:0 !important;border-bottom-left-radius:0 !important;border-bottom-right-radius:0 !important}[data-css-continued-fragment]{counter-reset:none !important;counter-increment:none !important;margin-bottom:0 !important;padding-bottom:0 !important;border-bottom:none !important;border-bottom-left-radius:0 !important;border-bottom-right-radius:0 !important}[data-css-continued-fragment]::after{content:none !important;display:none !important}[data-css-special-starting-fragment]{text-indent:0 !important;margin-top:0 !important}[data-css-starting-fragment]{text-indent:0 !important;margin-top:0 !important;padding-top:0 !important;border-top:none !important;border-top-left-radius:0 !important;border-top-right-radius:0 !important}[data-css-starting-fragment]::before{content:none !important;display:none !important}[data-css-continued-block-fragment][data-css-continued-fragment]::after{content:'' !important;display:inline-block !important;width:100% !important;height:0px !important;}";var t=document.head||document.getElementsByTagName("head")[0];t.appendChild(e),cssCascade.startMonitoringProperties(["flow-into","flow-from","region-fragment"],{onupdate:function(e,t){if(!e.getAttributeNode("data-css-regions-fragment-of")){cssConsole.dir({message:"onupdate",element:e,selector:t.selector.toCSSString(),rule:t});var n=cssCascade.getSpecifiedStyle(e,"flow-into").filter(function(e){return e instanceof cssSyntax.IdentifierToken}),o=n[0]?n[0].toCSSString().toLowerCase():"";("none"==o||"initial"==o||"inherit"==o||"default"==o)&&(o="");var r=n[1]?n[1].toCSSString().toLowerCase():"";"content"!=r&&(r="element");var n=o?o+" "+r:"",s=cssCascade.getSpecifiedStyle(e,"flow-from").filter(function(e){return e instanceof cssSyntax.IdentifierToken}),i=s[0]?s[0].toCSSString().toLowerCase():"";("none"==i||"initial"==i||"inherit"==i||"default"==i)&&(i="");var s=i;if(e.cssRegionsLastFlowInto!=n||e.cssRegionsLastFlowFrom!=s){var a=e.regionOverset,c=cssRegions.flows[e.cssRegionsLastFlowFromName],l=cssRegions.flows[e.cssRegionsLastFlowIntoName];if(c&&c.removeFromRegions(e),l&&l.removeFromContent(e),c&&"empty"!=a&&c.relayout(),l&&l.relayout(),e.cssRegionsLastFlowInto=n,e.cssRegionsLastFlowFrom=s,e.cssRegionsLastFlowIntoName=o,e.cssRegionsLastFlowFromName=i,e.cssRegionsLastFlowIntoType=r,i){var c=cssRegions.flows[i]=cssRegions.flows[i]||new cssRegions.Flow(i);c&&c.addToRegions(e),c&&c.relayout()}if(o){var l=cssRegions.flows[o]=cssRegions.flows[o]||new cssRegions.Flow(o);l&&l.addToContent(e),l&&l.relayout()}}}}}),cssCascade.startMonitoringProperties(["break-before","break-after"],{onupdate:function(e){if(!e.getAttribute("data-css-regions-fragment-of"))for(;e;){if(e.cssRegionsLastFlowIntoName)return cssRegions.flows[e.cssRegionsLastFlowIntoName].relayout(),void 0;e=e.parentNode}}}),cssRegions.enablePolyfillObjectModel(),window.addEventListener("load",function(){for(var e=document.getNamedFlows(),t=0;e.length>t;t++)e[t].relayout()});var n=0,o=function(){o.timeout=0;for(var e=document.getNamedFlows(),t=0;e.length>t;t++)e[t].lastRelayout>n||(e[t].relayoutInProgress?e[t].relayout():e[t].relayoutIfSizeChanged())},r=function(){for(var e=document.getNamedFlows(),t=0;e.length>t;t++)if(!(e[t].lastRelayout>n)&&e[t].relayoutInProgress)return!0;return!1},s=function(){for(var e=document.getNamedFlows(),t=0;e.length>t;t++)e[t].lastRelayout>n||e[t].relayoutInProgress&&e[t].relayout()};window.addEventListener("resize",function(){n=+new Date,o.timeout||(r()?(setTimeout(s,16),o.timeout=setTimeout(o,500)):o.timeout=setTimeout(o,200))})},flows:Object.create?Object.create(null):{}};cssRegions.Flow=function(e){this.name=e,Object.defineProperty(this,"name",{get:function(){return e}}),this.overset=!1,this.firstEmptyRegionIndex=-1,this.content=[],this.lastContent=[],this.regions=[],this.lastRegions=[],this.eventListeners={regionfragmentchange:[],regionoversetchange:[]};var t=this;t.update=function(e){e.schedule(t.update),t.relayout()},t.lastStylesheetAdded=0,cssCascade.addEventListener("stylesheetadded",function(){t.lastStylesheetAdded-Date()>100?(t.lastStylesheetAdded=+Date(),t.relayout()):cssConsole.warn("Please don't add stylesheets as a response to region events. Operation cancelled.")}),t.failedLayoutCount=0,t.lastEventRAF=0,t.restartLayout=!1},cssRegions.Flow.prototype.removeFromContent=function(e){this.removeEventListenersOf(e);var t=this.content.indexOf(e);t>=0&&this.content.splice(t,1)},cssRegions.Flow.prototype.removeFromRegions=function(e){this.removeEventListenersOf(e);var t=this.regions.indexOf(e);t>=0&&this.regions.splice(t,1)},cssRegions.Flow.prototype.addToContent=function(e){var t=this.content,n=document.createTreeWalker(document.documentElement,NodeFilter.SHOW_ELEMENT,function(e){return t.indexOf(e)>=0?NodeFilter.FILTER_ACCEPT:NodeFilter.FILTER_REJECT},!1);n.currentNode=e,n.nextNode()?t.splice(t.indexOf(n.currentNode),0,e):t.push(e)},cssRegions.Flow.prototype.addToRegions=function(e){var t=this.regions,n=document.createTreeWalker(document.documentElement,NodeFilter.SHOW_ELEMENT,function(e){return t.indexOf(e)>=0?NodeFilter.FILTER_ACCEPT:NodeFilter.FILTER_REJECT},!1);n.currentNode=e,n.nextNode()?t.splice(this.regions.indexOf(n.currentNode),0,e):t.push(e)},cssRegions.Flow.prototype.generateContentFragment=function(){for(var e=document.createDocumentFragment(),t=0;this.content.length>t;t++){var n=this.content[t];if(cssRegionsHelpers.markNodesAsFragmentSource([n],"content"==n.cssRegionsLastFlowIntoType),"element"==n.cssRegionsLastFlowIntoType){var o=n,r=o.cloneNode(!0),s=r;"LI"==s.tagName&&(s=document.createElement(o.parentNode.tagName),s.style.margin="0",s.style.padding="0",s.appendChild(r)),e.appendChild(s),cssRegionsHelpers.copyStyle(o,r)}else for(var o=n.firstChild;o;){var r=o.cloneNode(!0),s=r;"LI"==s.tagName&&(s=document.createElement(o.parentNode.tagName),s.style.margin="0",s.style.padding="0",s.appendChild(r)),e.appendChild(s),cssRegionsHelpers.copyStyle(o,r),o=o.nextSibling}}return cssRegionsHelpers.hideTextNodesFromFragmentSource(this.content),cssRegionsHelpers.transformFragmentSourceToFragments(Array.prototype.slice.call(e.childNodes,0)),e},cssRegions.Flow.prototype.relayout=function(){var e=this;if(cancelAnimationFrame(e.lastEventRAF),!e.relayoutScheduled){if(e.relayoutInProgress)return e.restartLayout=!0,void 0;e.relayoutScheduled=!0,requestAnimationFrame(function(){e._relayout()})}},cssRegions.Flow.prototype._relayout=function(e){var t=this;try{cssConsole.log("starting a new relayout for "+t.name),t.relayoutInProgress=!0,t.relayoutScheduled=!1,t.lastRelayout=+new Date;var n=e&&e.docElmScrollTop?e.docElmScrollTop:document.documentElement.scrollTop,o=e&&e.docBdyScrollTop?e.docBdyScrollTop:document.body.scrollTop;t.removeEventListenersOf(t.lastRegions),t.removeEventListenersOf(t.lastContent),cancelAnimationFrame(t.lastEventRAF),t.regions=t.regions.filter(function(e){return document.documentElement.contains(e)}),t.content=t.content.filter(function(e){return document.documentElement.contains(e)}),cssRegionsHelpers.unmarkNodesAsRegion(t.lastRegions),t.lastRegions=t.regions.slice(0),cssRegionsHelpers.unmarkNodesAsFragmentSource(t.lastContent),t.lastContent=t.content.slice(0),cssRegionsHelpers.markNodesAsRegion(t.regions);var r=t.regions.slice(0).reverse(),s=t.generateContentFragment();cssRegions.layoutContent(r,s,{onprogress:function(e){document.documentElement.scrollTop=n,document.body.scrollTop=o,t.restartLayout?(t.relayoutInProgress=!1,t.failedLayoutCount=0,t.restartLayout=!1,t._relayout({docElmScrollTop:n,docBdyScrollTop:o})):setImmediate(e)},ondone:function(e){for(t.overset=e,t.firstEmptyRegionIndex=t.regions.length-1;t.regions[t.firstEmptyRegionIndex];){var r=!1;if(r=r||!t.regions[t.firstEmptyRegionIndex].cssRegionsWrapper,r=r||!t.regions[t.firstEmptyRegionIndex].cssRegionsWrapper.firstChild,!r){++t.firstEmptyRegionIndex==t.regions.length&&(t.firstEmptyRegionIndex=-1);break}t.firstEmptyRegionIndex--}if(window.MutationObserver?(t.addEventListenersTo(t.content),t.addEventListenersTo(t.regions)):setImmediate(function(){t.addEventListenersTo(t.content)}),t.regions.length>0&&!t.restartLayout){var s=!1;s=s||t.regions.some(function(e){return!document.documentElement.contains(e)}),s=s||t.content.some(function(e){return!document.documentElement.contains(e)}),s?(cssConsole.warn("Buggy css regions layout: the page changed; we need to restart."),t.restartLayout=!0):t.lastEventRAF=requestAnimationFrame(function(){t.dispatchEvent("regionfragmentchange"),t.dispatchEvent("regionoversetchange")})}document.documentElement.scrollTop=n,document.body.scrollTop=o,t.relayoutInProgress=!1,t.failedLayoutCount=0,t.restartLayout&&(t.restartLayout=!1,t.relayout())}})}catch(i){setImmediate(function(){throw i}),t.failedLayoutCount++,7>t.failedLayoutCount?requestAnimationFrame(function(){t._relayout()}):(t.failedLayoutCount=0,t.relayoutScheduled=!1,t.relayoutInProgress=!1,t.restartLayout=!1)}},cssRegions.Flow.prototype.relayoutIfSizeChanged=function(){for(var e=this.regions,t=e.length;t--;)if(e[t].offsetHeight!==e[t].cssRegionsLastOffsetHeight||e[t].offsetWidth!==e[t].cssRegionsLastOffsetWidth)return this.relayout(),void 0},cssRegions.Flow.prototype.addEventListenersTo=function(e){var t=this;e instanceof Element&&(e=[e]),e.forEach(function(e){e.cssRegionsEventStream||(e.cssRegionsEventStream=new myDOMUpdateEventStream({target:e}),e.cssRegionsEventStream.schedule(t.update))})},cssRegions.Flow.prototype.removeEventListenersOf=function(e){e instanceof Element&&(e=[e]),e.forEach(function(e){e.cssRegionsEventStream&&(e.cssRegionsEventStream.dispose(),delete e.cssRegionsEventStream)})},cssRegions.NamedFlow=cssRegions.Flow,cssRegions.NamedFlow.prototype.getContent=function(){return this.content.slice(0)},cssRegions.NamedFlow.prototype.getRegions=function(){return this.regions.slice(0)},cssRegions.NamedFlow.prototype.getRegionsByContent=function(e){for(var t=[],n=document.querySelectorAll('[data-css-regions-fragment-of="'+e.getAttribute("data-css-regions-fragment-source")+'"]'),o=0;n.length>o;o++){var r=n[o];do if(r.getAttribute("data-css-region")){t.push(r);break}while(r=r.parentNode)}return t},basicObjectModel.EventTarget.implementsIn(cssRegions.Flow),cssRegions.NamedFlowCollection=function(){this.length=0},cssRegions.NamedFlowCollection.prototype.namedItem=function(e){return cssRegions.flows[e]||(cssRegions.flows[e]=new cssRegions.Flow(e))},cssRegions.enablePolyfillObjectModel=function(){document.getNamedFlows=function(){var e=new cssRegions.NamedFlowCollection,t=cssRegions.flows;for(var n in cssRegions.flows)Object.prototype.hasOwnProperty.call(t,n)&&(0!=t[n].content.length||0!=t[n].regions.length)&&(e[e.length++]=e[n]=t[n]);return e},document.getNamedFlow=function(e){var t=cssRegions.flows;return t[e]||(t[e]=new cssRegions.NamedFlow(e))},Object.defineProperties(Element.prototype,{regionOverset:{get:function(){return this._regionOverset||"fit"},set:function(e){this._regionOverset=e}},getRegionFlowRanges:{value:function(){return null}},getComputedRegionStyle:{value:function(e,t){var n=document.querySelector('[data-css-regions-fragment-of="'+e.getAttribute("data-css-regions-fragment-source")+'"]');return t?getComputedStyle(n||e,t):getComputedStyle(n||e)}}}),cssCascade.polyfillStyleInterface("flow-into"),cssCascade.polyfillStyleInterface("flow-from"),cssCascade.polyfillStyleInterface("region-fragment"),cssCascade.polyfillStyleInterface("break-before"),cssCascade.polyfillStyleInterface("break-after")},"cssRegionsManualTrigger"in window||cssRegions.enablePolyfill();