/**
 * yjs - A framework for real-time p2p shared editing on any data
 * @version v13.0.0-23
 * @license MIT
 */
!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Y=e()}(this,function(){"use strict";function t(t,e){return e={exports:{}},t(e,e.exports),e.exports}function e(t,e){var n=e._id;if(void 0===n)e._integrate(t);else{if(t.ss.getState(n.user)>n.clock)return;e._integrate(t);var r=t._missingStructs.get(n.user);if(null!=r)for(var i=n.clock,o=i+e._length;i<o;i++){var s=r.get(i);void 0!==s&&(s.forEach(function(e){if(0===--e.missing){var n=e.decoder,r=n.pos,i=e.struct._fromBinary(t,n);n.pos=r,0===i.length&&t._readyToIntegrate.push(e.struct)}}),r.delete(i))}}}function n(t,e,n){for(var r=e.readUint32(),i=0;i<r;i++){var o=e.readVarUint(),s=J(o),a=new s,l=a._fromBinary(t,e),u="  "+a._logString();l.length>0&&(u+=" .. missing: "+l.map(v).join(", ")),n.push(u)}}function r(t,n,r){for(var i=t.readUint32(),o=0;o<i;o++){var s=t.readVarUint(),a=J(s),l=new a,u=t.pos,h=l._fromBinary(r,t);if(0===h.length)for(;null!=l;)e(r,l),l=r._readyToIntegrate.shift();else{var c=new ct(t.uint8arr);c.pos=u;for(var f=new ft(c,h,l),_=r._missingStructs,d=h.length-1;d>=0;d--){var g=h[d];_.has(g.user)||_.set(g.user,new Map);var v=_.get(g.user);v.has(g.clock)||v.set(g.clock,[]);(v=v.get(g.clock)).push(f)}}}}function i(t){for(var e=new Map,n=t.readUint32(),r=0;r<n;r++){var i=t.readVarUint(),o=t.readVarUint();e.set(i,o)}return e}function o(t,e){var n=e.pos,r=0;e.writeUint32(0);var i=!0,o=!1,s=void 0;try{for(var a,l=t.ss.state[Symbol.iterator]();!(i=(a=l.next()).done);i=!0){var u=it(a.value,2),h=u[0],c=u[1];e.writeVarUint(h),e.writeVarUint(c),r++}}catch(t){o=!0,s=t}finally{try{!i&&l.return&&l.return()}finally{if(o)throw s}}e.setUint32(n,r)}function s(t,e){var n=null,r=void 0,i=void 0,o=0,s=e.pos;e.writeUint32(0),t.ds.iterate(null,null,function(t){var s=t._id.user,a=t._id.clock,l=t.len,u=t.gc;n!==s&&(o++,null!==n&&e.setUint32(i,r),n=s,e.writeVarUint(s),i=e.pos,e.writeUint32(0),r=0),e.writeVarUint(a),e.writeVarUint(l),e.writeUint8(u?1:0),r++}),null!==n&&e.setUint32(i,r),e.setUint32(s,o)}function a(t,e){for(var n=e.readUint32(),r=0;r<n;r++)!function(n){for(var r=e.readVarUint(),i=[],o=e.readUint32(),s=0;s<o;s++){var a=e.readVarUint(),l=e.readVarUint(),u=1===e.readUint8();i.push([a,l,u])}if(o>0){var h=0,c=i[h],f=[];t.ds.iterate(new at(r,0),new at(r,Number.MAX_VALUE),function(t){for(;null!=c;){var e=0;if(t._id.clock+t.len<=c[0])break;c[0]<t._id.clock?(e=Math.min(t._id.clock-c[0],c[1]),f.push([r,c[0],e])):(e=t._id.clock+t.len-c[0],c[2]&&!t.gc&&f.push([r,c[0],Math.min(e,c[1])])),c[1]<=e?c=i[++h]:(c[0]=c[0]+e,c[1]=c[1]-e)}});for(var _=f.length-1;_>=0;_--){var d=f[_];p(t,d[0],d[1],d[2])}for(;h<i.length;h++)c=i[h],p(t,r,c[0],c[1])}}()}function l(t,e,n){var r=e.readVarString(),i=e.readVarUint();n.push('  - auth: "'+r+'"'),n.push("  - protocolVersion: "+i);for(var o=[],s=e.readUint32(),a=0;a<s;a++){var l=e.readVarUint(),u=e.readVarUint();o.push("("+l+":"+u+")")}n.push("  == SS: "+o.join(","))}function u(t,e){var n=new _t;n.writeVarString(t.y.room),n.writeVarString("sync step 1"),n.writeVarString(t.authInfo||""),n.writeVarUint(t.protocolVersion),o(t.y,n),t.send(e,n.createBuffer())}function h(t,e,n,r){var i=t.pos;t.writeUint32(0);var o=0,s=!0,a=!1,l=void 0;try{for(var u,h=n.ss.state.keys()[Symbol.iterator]();!(s=(u=h.next()).done);s=!0){var c=u.value,f=r.get(c)||0;c!==Rt&&n.os.iterate(new at(c,f),new at(c,Number.MAX_VALUE),function(e){e._toBinary(t),o++})}}catch(t){a=!0,l=t}finally{try{!s&&h.return&&h.return()}finally{if(a)throw l}}t.setUint32(i,o)}function c(t,e,n,r,o){var a=t.readVarUint();a!==n.connector.protocolVersion&&(console.warn("You tried to sync with a Yjs instance that has a different protocol version\n      (You: "+a+", Client: "+a+").\n      "),n.destroy()),e.writeVarString("sync step 2"),e.writeVarString(n.connector.authInfo||""),h(e,t,n,i(t)),s(n,e),n.connector.send(r.uid,e.createBuffer()),r.receivedSyncStep2=!0,"slave"===n.connector.role&&u(n.connector,o)}function f(t,e,r){r.push("     - auth: "+e.readVarString()),r.push("  == OS:"),n(t,e,r),r.push("  == DS:");for(var i=e.readUint32(),o=0;o<i;o++){var s=e.readVarUint();r.push("    User: "+s+": ");for(var a=e.readUint32(),l=0;l<a;l++){var u=e.readVarUint(),h=e.readVarUint(),c=1===e.readUint8();r.push("["+u+", "+h+", "+c+"]")}}}function _(t,e,n,i,o){r(t,e,n),a(n,t),n.connector._setSyncedWith(o)}function d(t){var e=it(t,2),r=e[0],i=e[1],o=new ct(i);o.readVarString();var s=o.readVarString(),a=[];return a.push("\n === "+s+" ==="),"update"===s?n(r,o,a):"sync step 1"===s?l(r,o,a):"sync step 2"===s?f(r,o,a):a.push("-- Unknown message type - probably an encoding issue!!!"),a.join("\n")}function g(t){var e=new ct(t);return e.readVarString(),e.readVarString()}function v(t){if(null!==t&&null!=t._id&&(t=t._id),null===t)return"()";if(t instanceof at)return"("+t.user+","+t.clock+")";if(t instanceof Yt)return"("+t.name+","+t.type+")";if(t.constructor===re)return"y";throw new Error("This is not a valid ID!")}function p(t,e,n,r){var i=t.connector._forwardAppliedStructs,o=t.os.getItemCleanStart(new at(e,n));if(null!==o){o._deleted||(o._splitAt(t,r),o._delete(t,i));var s=o._length;if(r-=s,n+=s,r>0)for(var a=t.os.findNode(new at(e,n));null!==a&&r>0&&a.val._id.equals(new at(e,n));){var l=a.val;l._deleted||(l._splitAt(t,r),l._delete(t,i));var u=l._length;r-=u,n+=u,a=a.next()}}}function y(t,e,n){if(e!==t&&!e._deleted&&!t._transaction.newTypes.has(e)){var r=t._transaction.changedTypes,i=r.get(e);void 0===i&&(i=new Set,r.set(e,i)),i.add(n)}}function m(t,e,n,r){var i=e._id;n._id=new at(i.user,i.clock+r),n._origin=e,n._left=e,n._right=e._right,null!==n._right&&(n._right._left=n),n._right_origin=e._right_origin,e._right=n,n._parent=e._parent,n._parentSub=e._parentSub,n._deleted=e._deleted;var o=new Set;o.add(e);for(var s=n._right;null!==s&&o.has(s._origin);)s._origin===e&&(s._origin=n),o.add(s),s=s._right;t.os.put(n)}function b(t,e){var n=void 0;do{n=e._right,e._right=null,e._right_origin=null,e._origin=e._left,e._integrate(t),e=n}while(null!==n)}function k(t,e){return e}function w(t){for(;null!==t&&t._deleted;)t=t._right;return t}function S(t,e,n){var r=t.insertDomElementsAfter(e,[n]);return r.length>0?r[0]:e}function E(t){var e=t._yxml,n=e._y,r=new Set(Array.prototype.map.call(t.childNodes,function(t){return t._yxml}).filter(function(t){return void 0!==t}));e.forEach(function(t,e){r.has(t)||t._delete(n)});for(var i=t.childNodes,o=i.length,s=null,a=w(e._start),l=0;l<o;l++){var u=i[l],h=u._yxml;if(null!=h){if(!1===h)continue;null!==a?a!==h?(h._parent!==this?u._yxml=null:h._delete(n),s=S(e,s,u)):(s=a,a=w(a._right)):s=S(e,s,u)}else s=S(e,s,u)}}function O(t){this._mutualExclude(function(){t.forEach(function(t){var e=t.target,n=e._dom;if(null!=n)if(e.constructor===Ut)e._dom.nodeValue=e.toString();else if(t.attributesChanged.forEach(function(t){var r=e.getAttribute(t);void 0===r?n.removeAttribute(t):n.setAttribute(t,r)}),t.childListChanged){var r=document.createDocumentFragment();e.forEach(function(t){r.append(t.getDom())});for(var i=n.lastChild;null!==i;)n.removeChild(i),i=n.lastChild;n.append(r)}})})}function A(t,e){if(0===e)return["startof",t._id.user,t._id.clock||null,t._id.name||null,t._id.type||null];for(var n=t._start;null!==n;){if(n._length>=e)return[n._id.user,n._id.clock+e-1];if(null===n._right)return[n._id.user,n._id.clock+n._length-1];n._deleted||(e-=n._length),n=n._right}return null}function U(t,e){if("startof"===e[0]){var n=void 0;return n=null===e[3]?new at(e[1],e[2]):new Yt(e[3],e[4]),{type:t.os.get(n),offset:0}}var r=0,i=t.os.findNodeWithUpperBound(new at(e[0],e[1])).val,o=i._parent;if(o._deleted)return null;for(i._deleted||(r=e[1]-i._id.clock+1),i=i._left;null!==i;)i._deleted||(r+=i._length),i=i._left;return{type:o,offset:r}}function B(t,e){if(null!==xt&&e){var n=xt.to,r=xt.from,i=xt.fromY,o=xt.toY,s=!1,a=Bt.anchorNode,l=Bt.anchorOffset,u=Bt.focusNode,h=Bt.focusOffset;if(null!==r){var c=U(i,r);null!==c&&(s=!0,a=c.type.getDom(),l=c.offset)}if(null!==n){var f=U(o,n);null!==f&&(u=f.type.getDom(),h=f.offset,s=!0)}s&&Bt.setBaseAndExtent(a,l,u,h),xt=null,Bt=null}}function x(t,e,n){if(t==e)return t?[[Vt,t]]:[];(n<0||t.length<n)&&(n=null);var r=N(t,e),i=t.substring(0,r);t=t.substring(r),e=e.substring(r),r=V(t,e);var o=t.substring(t.length-r);t=t.substring(0,t.length-r),e=e.substring(0,e.length-r);var s=D(t,e);return i&&s.unshift([Vt,i]),o&&s.push([Vt,o]),P(s),null!=n&&(s=M(s,n)),s=j(s)}function D(t,e){var n;if(!t)return[[Nt,e]];if(!e)return[[Lt,t]];var r=t.length>e.length?t:e,i=t.length>e.length?e:t,o=r.indexOf(i);if(-1!=o)return n=[[Nt,r.substring(0,o)],[Vt,i],[Nt,r.substring(o+i.length)]],t.length>e.length&&(n[0][0]=n[2][0]=Lt),n;if(1==i.length)return[[Lt,t],[Nt,e]];var s=T(t,e);if(s){var a=s[0],l=s[1],u=s[2],h=s[3],c=s[4],f=x(a,u),_=x(l,h);return f.concat([[Vt,c]],_)}return I(t,e)}function I(t,e){for(var n=t.length,r=e.length,i=Math.ceil((n+r)/2),o=i,s=2*i,a=new Array(s),l=new Array(s),u=0;u<s;u++)a[u]=-1,l[u]=-1;a[o+1]=0,l[o+1]=0;for(var h=n-r,c=h%2!=0,f=0,_=0,d=0,g=0,v=0;v<i;v++){for(var p=-v+f;p<=v-_;p+=2){var y,m=o+p;y=p==-v||p!=v&&a[m-1]<a[m+1]?a[m+1]:a[m-1]+1;for(var b=y-p;y<n&&b<r&&t.charAt(y)==e.charAt(b);)y++,b++;if(a[m]=y,y>n)_+=2;else if(b>r)f+=2;else if(c){var k=o+h-p;if(k>=0&&k<s&&-1!=l[k]){var w=n-l[k];if(y>=w)return L(t,e,y,b)}}}for(var S=-v+d;S<=v-g;S+=2){var w,k=o+S;w=S==-v||S!=v&&l[k-1]<l[k+1]?l[k+1]:l[k-1]+1;for(var E=w-S;w<n&&E<r&&t.charAt(n-w-1)==e.charAt(r-E-1);)w++,E++;if(l[k]=w,w>n)g+=2;else if(E>r)d+=2;else if(!c){var m=o+h-S;if(m>=0&&m<s&&-1!=a[m]){var y=a[m],b=o+y-m;if(w=n-w,y>=w)return L(t,e,y,b)}}}}return[[Lt,t],[Nt,e]]}function L(t,e,n,r){var i=t.substring(0,n),o=e.substring(0,r),s=t.substring(n),a=e.substring(r),l=x(i,o),u=x(s,a);return l.concat(u)}function N(t,e){if(!t||!e||t.charAt(0)!=e.charAt(0))return 0;for(var n=0,r=Math.min(t.length,e.length),i=r,o=0;n<i;)t.substring(o,i)==e.substring(o,i)?(n=i,o=n):r=i,i=Math.floor((r-n)/2+n);return i}function V(t,e){if(!t||!e||t.charAt(t.length-1)!=e.charAt(e.length-1))return 0;for(var n=0,r=Math.min(t.length,e.length),i=r,o=0;n<i;)t.substring(t.length-i,t.length-o)==e.substring(e.length-i,e.length-o)?(n=i,o=n):r=i,i=Math.floor((r-n)/2+n);return i}function T(t,e){function n(t,e,n){for(var r,i,o,s,a=t.substring(n,n+Math.floor(t.length/4)),l=-1,u="";-1!=(l=e.indexOf(a,l+1));){var h=N(t.substring(n),e.substring(l)),c=V(t.substring(0,n),e.substring(0,l));u.length<c+h&&(u=e.substring(l-c,l)+e.substring(l,l+h),r=t.substring(0,n-c),i=t.substring(n+h),o=e.substring(0,l-c),s=e.substring(l+h))}return 2*u.length>=t.length?[r,i,o,s,u]:null}var r=t.length>e.length?t:e,i=t.length>e.length?e:t;if(r.length<4||2*i.length<r.length)return null;var o,s=n(r,i,Math.ceil(r.length/4)),a=n(r,i,Math.ceil(r.length/2));if(!s&&!a)return null;o=a?s&&s[4].length>a[4].length?s:a:s;var l,u,h,c;return t.length>e.length?(l=o[0],u=o[1],h=o[2],c=o[3]):(h=o[0],c=o[1],l=o[2],u=o[3]),[l,u,h,c,o[4]]}function P(t){t.push([Vt,""]);for(var e,n=0,r=0,i=0,o="",s="";n<t.length;)switch(t[n][0]){case Nt:i++,s+=t[n][1],n++;break;case Lt:r++,o+=t[n][1],n++;break;case Vt:r+i>1?(0!==r&&0!==i&&(e=N(s,o),0!==e&&(n-r-i>0&&t[n-r-i-1][0]==Vt?t[n-r-i-1][1]+=s.substring(0,e):(t.splice(0,0,[Vt,s.substring(0,e)]),n++),s=s.substring(e),o=o.substring(e)),0!==(e=V(s,o))&&(t[n][1]=s.substring(s.length-e)+t[n][1],s=s.substring(0,s.length-e),o=o.substring(0,o.length-e))),0===r?t.splice(n-i,r+i,[Nt,s]):0===i?t.splice(n-r,r+i,[Lt,o]):t.splice(n-r-i,r+i,[Lt,o],[Nt,s]),n=n-r-i+(r?1:0)+(i?1:0)+1):0!==n&&t[n-1][0]==Vt?(t[n-1][1]+=t[n][1],t.splice(n,1)):n++,i=0,r=0,o="",s=""}""===t[t.length-1][1]&&t.pop();var a=!1;for(n=1;n<t.length-1;)t[n-1][0]==Vt&&t[n+1][0]==Vt&&(t[n][1].substring(t[n][1].length-t[n-1][1].length)==t[n-1][1]?(t[n][1]=t[n-1][1]+t[n][1].substring(0,t[n][1].length-t[n-1][1].length),t[n+1][1]=t[n-1][1]+t[n+1][1],t.splice(n-1,1),a=!0):t[n][1].substring(0,t[n+1][1].length)==t[n+1][1]&&(t[n-1][1]+=t[n+1][1],t[n][1]=t[n][1].substring(t[n+1][1].length)+t[n+1][1],t.splice(n+1,1),a=!0)),n++;a&&P(t)}function C(t,e){if(0===e)return[Vt,t];for(var n=0,r=0;r<t.length;r++){var i=t[r];if(i[0]===Lt||i[0]===Vt){var o=n+i[1].length;if(e===o)return[r+1,t];if(e<o){t=t.slice();var s=e-n,a=[i[0],i[1].slice(0,s)],l=[i[0],i[1].slice(s)];return t.splice(r,1,a,l),[r+1,t]}n=o}}throw new Error("cursor_pos is out of bounds!")}function M(t,e){var n=C(t,e),r=n[1],i=n[0],o=r[i],s=r[i+1];if(null==o)return t;if(o[0]!==Vt)return t;if(null!=s&&o[1]+s[1]===s[1]+o[1])return r.splice(i,2,s,o),F(r,i,2);if(null!=s&&0===s[1].indexOf(o[1])){r.splice(i,2,[s[0],o[1]],[0,o[1]]);var a=s[1].slice(o[1].length);return a.length>0&&r.splice(i+2,0,[s[0],a]),F(r,i,3)}return t}function j(t){for(var e=!1,n=function(t){return t.charCodeAt(0)>=56320&&t.charCodeAt(0)<=57343},r=2;r<t.length;r+=1)t[r-2][0]===Vt&&function(t){return t.charCodeAt(t.length-1)>=55296&&t.charCodeAt(t.length-1)<=56319}(t[r-2][1])&&t[r-1][0]===Lt&&n(t[r-1][1])&&t[r][0]===Nt&&n(t[r][1])&&(e=!0,t[r-1][1]=t[r-2][1].slice(-1)+t[r-1][1],t[r][1]=t[r-2][1].slice(-1)+t[r][1],t[r-2][1]=t[r-2][1].slice(0,-1));if(!e)return t;for(var i=[],r=0;r<t.length;r+=1)t[r][1].length>0&&i.push(t[r]);return i}function F(t,e,n){for(var r=e+n-1;r>=0&&r>=e-1;r--)if(r+1<t.length){var i=t[r],o=t[r+1];i[0]===o[1]&&t.splice(r,2,[i[0],i[1]+o[1]])}return t}function R(t,e){var n=[];return e.forEach(function(e){if(null!=e._yxml&&!1!==e._yxml&&e._yxml._unbindFromDom(),null!==t._domFilter(e,[])){var r=void 0;if(e.nodeType===e.TEXT_NODE)r=new Ut(e);else{if(e.nodeType!==e.ELEMENT_NODE)throw new Error("Unsupported node!");r=new Ct._YXmlElement(e,t._domFilter)}r.enableSmartScrolling(t._scrollElement),n.push(r)}else e._yxml=!1}),n}function Y(t,e){jt.set(t,e),Ft.set(e,t)}function J(t){return jt.get(t)}function W(t){return Ft.get(t)}function z(){if("undefined"!=typeof crypto&&null!=crypto.getRandomValue){var t=new Uint32Array(1);return crypto.getRandomValues(t),t[0]}if("undefined"!=typeof crypto&&null!=crypto.randomBytes){var e=crypto.randomBytes(4);return new Uint32Array(e.buffer)[0]}return Math.ceil(4294967295*Math.random())}function H(t,e,n){for(;e!==t;){if(e===n)return!0;e=e._parent}return!1}function X(t){if(t=String(t),!(t.length>100)){var e=/^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(t);if(e){var n=parseFloat(e[1]);switch((e[2]||"ms").toLowerCase()){case"years":case"year":case"yrs":case"yr":case"y":return n*Gt;case"days":case"day":case"d":return n*Zt;case"hours":case"hour":case"hrs":case"hr":case"h":return n*Qt;case"minutes":case"minute":case"mins":case"min":case"m":return n*$t;case"seconds":case"second":case"secs":case"sec":case"s":return n*qt;case"milliseconds":case"millisecond":case"msecs":case"msec":case"ms":return n;default:return}}}}function q(t){return t>=Zt?Math.round(t/Zt)+"d":t>=Qt?Math.round(t/Qt)+"h":t>=$t?Math.round(t/$t)+"m":t>=qt?Math.round(t/qt)+"s":t+"ms"}function $(t){return Q(t,Zt,"day")||Q(t,Qt,"hour")||Q(t,$t,"minute")||Q(t,qt,"second")||t+" ms"}function Q(t,e,n){if(!(t<e))return t<1.5*e?Math.floor(t/e)+" "+n:Math.ceil(t/e)+" "+n+"s"}function Z(t){var e=function(){function e(n,r){K(this,e),this.y=n,this.opts=r,this.saveOperationsBuffer=[],this.log=t.debug("y:persistence")}return tt(e,[{key:"saveToMessageQueue",value:function(t){this.log("Room %s: Save message to message queue",this.y.options.connector.room)}},{key:"saveOperations",value:function(e){e=e.map(function(e){return t.Struct[e.struct].encode(e)}),0===this.saveOperationsBuffer.length?this.saveOperationsBuffer=e:this.saveOperationsBuffer=this.saveOperationsBuffer.concat(e)}}]),e}();t.AbstractPersistence=e}var G="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},K=function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")},tt=function(){function t(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}return function(e,n,r){return n&&t(e.prototype,n),r&&t(e,r),e}}(),et=function t(e,n,r){null===e&&(e=Function.prototype);var i=Object.getOwnPropertyDescriptor(e,n);if(void 0===i){var o=Object.getPrototypeOf(e);return null===o?void 0:t(o,n,r)}if("value"in i)return i.value;var s=i.get;if(void 0!==s)return s.call(r)},nt=function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)},rt=function(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e},it=function(){function t(t,e){var n=[],r=!0,i=!1,o=void 0;try{for(var s,a=t[Symbol.iterator]();!(r=(s=a.next()).done)&&(n.push(s.value),!e||n.length!==e);r=!0);}catch(t){i=!0,o=t}finally{try{!r&&a.return&&a.return()}finally{if(i)throw o}}return n}return function(e,n){if(Array.isArray(e))return e;if(Symbol.iterator in Object(e))return t(e,n);throw new TypeError("Invalid attempt to destructure non-iterable instance")}}(),ot=function(){function t(e){K(this,t),this.val=e,this.color=!0,this._left=null,this._right=null,this._parent=null}return tt(t,[{key:"isRed",value:function(){return this.color}},{key:"isBlack",value:function(){return!this.color}},{key:"redden",value:function(){return this.color=!0,this}},{key:"blacken",value:function(){return this.color=!1,this}},{key:"rotateLeft",value:function(t){var e=this.parent,n=this.right,r=this.right.left;if(n.left=this,this.right=r,null===e)t.root=n,n._parent=null;else if(e.left===this)e.left=n;else{if(e.right!==this)throw new Error("The elements are wrongly connected!");e.right=n}}},{key:"next",value:function(){if(null!==this.right){for(var t=this.right;null!==t.left;)t=t.left;return t}for(var e=this;null!==e.parent&&e!==e.parent.left;)e=e.parent;return e.parent}},{key:"prev",value:function(){if(null!==this.left){for(var t=this.left;null!==t.right;)t=t.right;return t}for(var e=this;null!==e.parent&&e!==e.parent.right;)e=e.parent;return e.parent}},{key:"rotateRight",value:function(t){var e=this.parent,n=this.left,r=this.left.right;if(n.right=this,this.left=r,null===e)t.root=n,n._parent=null;else if(e.left===this)e.left=n;else{if(e.right!==this)throw new Error("The elements are wrongly connected!");e.right=n}}},{key:"getUncle",value:function(){return this.parent===this.parent.parent.left?this.parent.parent.right:this.parent.parent.left}},{key:"grandparent",get:function(){return this.parent.parent}},{key:"parent",get:function(){return this._parent}},{key:"sibling",get:function(){return this===this.parent.left?this.parent.right:this.parent.left}},{key:"left",get:function(){return this._left},set:function(t){null!==t&&(t._parent=this),this._left=t}},{key:"right",get:function(){return this._right},set:function(t){null!==t&&(t._parent=this),this._right=t}}]),t}(),st=function(){function t(){K(this,t),this.root=null,this.length=0}return tt(t,[{key:"findNext",value:function(t){var e=t.clone();return e.clock+=1,this.findWithLowerBound(e)}},{key:"findPrev",value:function(t){var e=t.clone();return e.clock-=1,this.findWithUpperBound(e)}},{key:"findNodeWithLowerBound",value:function(t){var e=this.root;if(null===e)return null;for(;;)if(null===t||t.lessThan(e.val._id)&&null!==e.left)e=e.left;else{if(null===t||!e.val._id.lessThan(t))return e;if(null===e.right)return e.next();e=e.right}}},{key:"findNodeWithUpperBound",value:function(t){if(void 0===t)throw new Error("You must define from!");var e=this.root;if(null===e)return null;for(;;)if(null!==t&&!e.val._id.lessThan(t)||null===e.right){if(null===t||!t.lessThan(e.val._id))return e;if(null===e.left)return e.prev();e=e.left}else e=e.right}},{key:"findSmallestNode",value:function(){for(var t=this.root;null!=t&&null!=t.left;)t=t.left;return t}},{key:"findWithLowerBound",value:function(t){var e=this.findNodeWithLowerBound(t);return null==e?null:e.val}},{key:"findWithUpperBound",value:function(t){var e=this.findNodeWithUpperBound(t);return null==e?null:e.val}},{key:"iterate",value:function(t,e,n){var r;for(r=null===t?this.findSmallestNode():this.findNodeWithLowerBound(t);null!==r&&(null===e||r.val._id.lessThan(e)||r.val._id.equals(e));)n(r.val),r=r.next()}},{key:"find",value:function(t){var e=this.findNode(t);return null!==e?e.val:null}},{key:"findNode",value:function(t){var e=this.root;if(null===e)return null;for(;;){if(null===e)return null;if(t.lessThan(e.val._id))e=e.left;else{if(!e.val._id.lessThan(t))return e;e=e.right}}}},{key:"delete",value:function(t){var e=this.findNode(t);if(null!=e){if(this.length--,null!==e.left&&null!==e.right){for(var n=e.left;null!==n.right;)n=n.right;e.val=n.val,e=n}var r,i=e.left||e.right;if(null===i?(r=!0,i=new ot(null),i.blacken(),e.right=i):r=!1,null===e.parent)return void(r?this.root=null:(this.root=i,i.blacken(),i._parent=null));if(e.parent.left===e)e.parent.left=i;else{if(e.parent.right!==e)throw new Error("Impossible!");e.parent.right=i}if(e.isBlack()&&(i.isRed()?i.blacken():this._fixDelete(i)),this.root.blacken(),r)if(i.parent.left===i)i.parent.left=null;else{if(i.parent.right!==i)throw new Error("Impossible #3");i.parent.right=null}}}},{key:"_fixDelete",value:function(t){function e(t){return null===t||t.isBlack()}function n(t){return null!==t&&t.isRed()}if(null!==t.parent){var r=t.sibling;if(n(r)){if(t.parent.redden(),r.blacken(),t===t.parent.left)t.parent.rotateLeft(this);else{if(t!==t.parent.right)throw new Error("Impossible #2");t.parent.rotateRight(this)}r=t.sibling}t.parent.isBlack()&&r.isBlack()&&e(r.left)&&e(r.right)?(r.redden(),this._fixDelete(t.parent)):t.parent.isRed()&&r.isBlack()&&e(r.left)&&e(r.right)?(r.redden(),t.parent.blacken()):(t===t.parent.left&&r.isBlack()&&n(r.left)&&e(r.right)?(r.redden(),r.left.blacken(),r.rotateRight(this),r=t.sibling):t===t.parent.right&&r.isBlack()&&n(r.right)&&e(r.left)&&(r.redden(),r.right.blacken(),r.rotateLeft(this),r=t.sibling),r.color=t.parent.color,t.parent.blacken(),t===t.parent.left?(r.right.blacken(),t.parent.rotateLeft(this)):(r.left.blacken(),t.parent.rotateRight(this)))}}},{key:"put",value:function(t){var e=new ot(t);if(null!==this.root){for(var n=this.root;;)if(e.val._id.lessThan(n.val._id)){if(null===n.left){n.left=e;break}n=n.left}else{if(!n.val._id.lessThan(e.val._id))return n.val=e.val,n;if(null===n.right){n.right=e;break}n=n.right}this._fixInsert(e)}else this.root=e;return this.length++,this.root.blacken(),e}},{key:"_fixInsert",value:function(t){if(null===t.parent)return void t.blacken();if(!t.parent.isBlack()){var e=t.getUncle();null!==e&&e.isRed()?(t.parent.blacken(),e.blacken(),t.grandparent.redden(),this._fixInsert(t.grandparent)):(t===t.parent.right&&t.parent===t.grandparent.left?(t.parent.rotateLeft(this),t=t.left):t===t.parent.left&&t.parent===t.grandparent.right&&(t.parent.rotateRight(this),t=t.right),t.parent.blacken(),t.grandparent.redden(),t===t.parent.left?t.grandparent.rotateRight(this):t.grandparent.rotateLeft(this))}}},{key:"flush",value:function(){}}]),t}(),at=function(){function t(e,n){K(this,t),this.user=e,this.clock=n}return tt(t,[{key:"clone",value:function(){return new t(this.user,this.clock)}},{key:"equals",value:function(t){return null!==t&&t.user===this.user&&t.clock===this.clock}},{key:"lessThan",value:function(t){return this.user<t.user||this.user===t.user&&this.clock<t.clock}}]),t}(),lt=function(){function t(e,n,r){K(this,t),this._id=e,this.len=n,this.gc=r}return tt(t,[{key:"clone",value:function(){return new t(this._id,this.len,this.gc)}}]),t}(),ut=function(t){function e(){return K(this,e),rt(this,(e.__proto__||Object.getPrototypeOf(e)).apply(this,arguments))}return nt(e,t),tt(e,[{key:"logTable",value:function(){var t=[];this.iterate(null,null,function(e){t.push({user:e._id.user,clock:e._id.clock,len:e.len,gc:e.gc})}),console.table(t)}},{key:"isDeleted",value:function(t){var e=this.findWithUpperBound(t);return null!==e&&e._id.user===t.user&&t.clock<e._id.clock+e.len}},{key:"markDeleted",value:function(t,e){if(null==e)throw new Error("length must be defined");var n=this.findWithUpperBound(t);if(null!=n&&n._id.user===t.user)if(n._id.clock<=t.clock&&t.clock<=n._id.clock+n.len){var r=t.clock+e-(n._id.clock+n.len);if(!(r>0))return n;if(n.gc){if(!((r=n._id.clock+n.len-t.clock)<e))throw new Error("DS reached an inconsistent state. Please report this issue!");var i=t.clone();i.clock+=r,n=new lt(i,e-r,!1),this.put(n)}else n.len+=r}else n=new lt(t,e,!1),this.put(n);else n=new lt(t,e,!1),this.put(n);var o=this.findNext(n._id);if(null!=o&&n._id.user===o._id.user&&n._id.clock+n.len>=o._id.clock)for(r=n._id.clock+n.len-o._id.clock;r>=0;){if(o.gc){n.len-=r,r>=o.len&&(r-=o.len)>0&&(this.put(n),this.markDeleted(new at(o._id.user,o._id.clock+o.len),r));break}if(!(r>o.len)){n.len+=o.len-r,this.delete(o._id);break}var s=this.findNext(o._id);if(this.delete(o._id),null==s||n._id.user!==s._id.user)break;o=s,r=n._id.clock+n.len-o._id.clock}return this.put(n),n}}]),e}(st);String.fromCodePoint||function(){var t=function(){try{var t={},e=Object.defineProperty,n=e(t,t,t)&&e}catch(t){}return n}(),e=String.fromCharCode,n=Math.floor,r=function(t){var r,i,o=[],s=-1,a=arguments.length;if(!a)return"";for(var l="";++s<a;){var u=Number(arguments[s]);if(!isFinite(u)||u<0||u>1114111||n(u)!=u)throw RangeError("Invalid code point: "+u);u<=65535?o.push(u):(u-=65536,r=55296+(u>>10),i=u%1024+56320,o.push(r,i)),(s+1==a||o.length>16384)&&(l+=e.apply(null,o),o.length=0)}return l};t?t(String,"fromCodePoint",{value:r,configurable:!0,writable:!0}):String.fromCodePoint=r}(),String.prototype.codePointAt||function(){var t=function(){try{var t={},e=Object.defineProperty,n=e(t,t,t)&&e}catch(t){}return n}(),e=function(t){if(null==this)throw TypeError();var e=String(this),n=e.length,r=t?Number(t):0;if(r!=r&&(r=0),!(r<0||r>=n)){var i,o=e.charCodeAt(r);return o>=55296&&o<=56319&&n>r+1&&(i=e.charCodeAt(r+1))>=56320&&i<=57343?1024*(o-55296)+i-56320+65536:o}};t?t(String.prototype,"codePointAt",{value:e,configurable:!0,writable:!0}):String.prototype.codePointAt=e}();var ht=t(function(t){t.require;var e={isNotUTF8:function(t,n,r){try{e.getStringFromBytes(t,n,r,!0)}catch(t){return!0}return!1},getCharLength:function(t){return 240==(240&t)?4:224==(224&t)?3:192==(192&t)?2:t==(127&t)?1:0},getCharCode:function(t,n,r){var i=0,o="";if(n=n||0,0==(r=r||e.getCharLength(t[n])))throw new Error(t[n].toString(2)+" is not a significative byte (offset:"+n+").");if(1===r)return t[n];if(o="00000000".slice(0,r)+1+"00000000".slice(r+1),t[n]&parseInt(o,2))throw Error("Index "+n+": A "+r+" bytes encoded char cannot encode the "+(r+1)+"th rank bit to 1.");for(o="0000".slice(0,r+1)+"11111111".slice(r+1),i+=(t[n]&parseInt(o,2))<<6*--r;r;){if(128!=(128&t[n+1])||64==(64&t[n+1]))throw Error("Index "+(n+1)+': Next bytes of encoded char must begin with a "10" bit sequence.');i+=(63&t[++n])<<6*--r}return i},getStringFromBytes:function(t,n,r,i){var o,s=[];for(n|=0,r="number"==typeof r?r:t.byteLength||t.length;n<r;n++){if(o=e.getCharLength(t[n]),n+o>r){if(i)throw Error("Index "+n+": Found a "+o+" bytes encoded char declaration but only "+(r-n)+" bytes are available.")}else s.push(String.fromCodePoint(e.getCharCode(t,n,o,i)));n+=o-1}return s.join("")},getBytesForCharCode:function(t){if(t<128)return 1;if(t<2048)return 2;if(t<65536)return 3;if(t<2097152)return 4;throw new Error("CharCode "+t+" cannot be encoded with UTF8.")},setBytesFromCharCode:function(t,n,r,i){if(t|=0,n=n||[],r|=0,1==(i=i||e.getBytesForCharCode(t)))n[r]=t;else for(n[r++]=(parseInt("1111".slice(0,i),2)<<8-i)+(t>>>6*--i);i>0;)n[r++]=t>>>6*--i&63|128;return n},setBytesFromString:function(t,n,r,i,o){t=t||"",n=n||[],r|=0,i="number"==typeof i?i:n.byteLength||1/0;for(var s=0,a=t.length;s<a;s++){var l=e.getBytesForCharCode(t[s].codePointAt(0));if(o&&r+l>i)throw new Error('Not enought bytes to encode the char "'+t[s]+'" at the offset "'+r+'".');e.setBytesFromCharCode(t[s].codePointAt(0),n,r,l,o),r+=l}return n}};t.exports=e}),ct=function(){function t(e){if(K(this,t),e instanceof ArrayBuffer)this.uint8arr=new Uint8Array(e);else{if(!(e instanceof Uint8Array||"undefined"!=typeof Buffer&&e instanceof Buffer))throw new Error("Expected an ArrayBuffer or Uint8Array!");this.uint8arr=e}this.pos=0}return tt(t,[{key:"clone",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.pos,n=new t(this.uint8arr);return n.pos=e,n}},{key:"skip8",value:function(){this.pos++}},{key:"readUint8",value:function(){return this.uint8arr[this.pos++]}},{key:"readUint32",value:function(){var t=this.uint8arr[this.pos]+(this.uint8arr[this.pos+1]<<8)+(this.uint8arr[this.pos+2]<<16)+(this.uint8arr[this.pos+3]<<24);return this.pos+=4,t}},{key:"peekUint8",value:function(){return this.uint8arr[this.pos]}},{key:"readVarUint",value:function(){for(var t=0,e=0;;){var n=this.uint8arr[this.pos++];if(t|=(127&n)<<e,e+=7,n<128)return t>>>0;if(e>35)throw new Error("Integer out of range!")}}},{key:"readVarString",value:function(){for(var t=this.readVarUint(),e=new Array(t),n=0;n<t;n++)e[n]=this.uint8arr[this.pos++];return ht.getStringFromBytes(e)}},{key:"peekVarString",value:function(){var t=this.pos,e=this.readVarString();return this.pos=t,e}},{key:"readID",value:function(){var t=this.readVarUint();if(t===Rt){var e=new Yt(this.readVarString(),null);return e.type=this.readVarUint(),e}return new at(t,this.readVarUint())}},{key:"length",get:function(){return this.uint8arr.length}}]),t}(),ft=function t(e,n,r){K(this,t),this.decoder=e,this.missing=n.length,this.struct=r},_t=function(){function t(){K(this,t),this.data=[]}return tt(t,[{key:"createBuffer",value:function(){return Uint8Array.from(this.data).buffer}},{key:"writeUint8",value:function(t){this.data.push(255&t)}},{key:"setUint8",value:function(t,e){this.data[t]=255&e}},{key:"writeUint16",value:function(t){this.data.push(255&t,t>>>8&255)}},{key:"setUint16",value:function(t,e){this.data[t]=255&e,this.data[t+1]=e>>>8&255}},{key:"writeUint32",value:function(t){for(var e=0;e<4;e++)this.data.push(255&t),t>>>=8}},{key:"setUint32",value:function(t,e){for(var n=0;n<4;n++)this.data[t+n]=255&e,e>>>=8}},{key:"writeVarUint",value:function(t){for(;t>=128;)this.data.push(128|127&t),t>>>=7;this.data.push(127&t)}},{key:"writeVarString",value:function(t){var e=ht.setBytesFromString(t),n=e.length;this.writeVarUint(n);for(var r=0;r<n;r++)this.data.push(e[r])}},{key:"writeID",value:function(t){var e=t.user;this.writeVarUint(e),e!==Rt?this.writeVarUint(t.clock):(this.writeVarString(t.name),this.writeVarUint(t.type))}},{key:"length",get:function(){return this.data.length}},{key:"pos",get:function(){return this.data.length}}]),t}(),dt=function(){function t(){K(this,t),this._target=null,this._length=null}return tt(t,[{key:"_fromBinary",value:function(t,e){var n=e.readID();return this._targetID=n,this._length=e.readVarUint(),null===t.os.getItem(n)?[n]:[]}},{key:"_toBinary",value:function(t){t.writeUint8(W(this.constructor)),t.writeID(this._targetID),t.writeVarUint(this._length)}},{key:"_integrate",value:function(t){if(arguments.length>1&&void 0!==arguments[1]&&arguments[1])t.connector.broadcastStruct(this);else{var e=this._targetID;p(t,e.user,e.clock,this._length)}null!==t.persistence&&t.persistence.saveOperations(this)}},{key:"_logString",value:function(){return"Delete - target: "+v(this._targetID)+", len: "+this._length}}]),t}(),gt=function t(e){K(this,t),this.y=e,this.newTypes=new Set,this.changedTypes=new Map,this.deletedStructs=new Set,this.beforeState=new Map,this.changedParentTypes=new Map},vt=function(){function t(){K(this,t),this._id=null,this._origin=null,this._left=null,this._right=null,this._right_origin=null,this._parent=null,this._parentSub=null,this._deleted=!1}return tt(t,[{key:"_copy",value:function(){
var t=new this.constructor;return t._origin=this._left,t._left=this._left,t._right=this,t._right_origin=this,t._parent=this._parent,t._parentSub=this._parentSub,t}},{key:"_splitAt",value:function(t,e){return 0===e?this:this._right}},{key:"_delete",value:function(t){var e=!(arguments.length>1&&void 0!==arguments[1])||arguments[1];if(this._deleted=!0,t.ds.markDeleted(this._id,this._length),e){var n=new dt;n._targetID=this._id,n._length=this._length,n._integrate(t,!0)}y(t,this._parent,this._parentSub),t._transaction.deletedStructs.add(this)}},{key:"_beforeChange",value:function(){}},{key:"_integrate",value:function(t){var e=this._parent,n=this._id,r=null===n?0:t.ss.getState(n.user);if(null===n)this._id=t.ss.getNextID(this._length);else if(n.user===Rt);else{if(n.clock<r)return[];if(n.clock!==r)throw new Error("Can not apply yet!");t.ss.setState(n.user,r+this._length)}e._deleted||t._transaction.changedTypes.has(e)||t._transaction.newTypes.has(e)||this._parent._beforeChange();var i=void 0;i=null!==this._left?this._left._right:null!==this._parentSub?this._parent._map.get(this._parentSub)||null:this._parent._start;for(var o=new Set,s=new Set;null!==i&&i!==this._right;){if(s.add(i),o.add(i),this._origin===i._origin)i._id.user<this._id.user&&(this._left=i,o.clear());else{if(!s.has(i._origin))break;o.has(i._origin)||(this._left=i,o.clear())}i=i._right}var a=this._parentSub;if(null===this._left){var l=void 0;if(null!==a){var u=e._map;l=u.get(a)||null,u.set(a,this)}else l=e._start,e._start=this;this._right=l,null!==l&&(l._left=this)}else{var h=this._left,c=h._right;this._right=c,h._right=this,null!==c&&(c._left=this)}e._deleted&&this._delete(t,!1),t.os.put(this),y(t,e,a),this._id.user!==Rt&&((t.connector._forwardAppliedStructs||this._id.user===t.userID)&&t.connector.broadcastStruct(this),null!==t.persistence&&t.persistence.saveOperations(this))}},{key:"_toBinary",value:function(t){t.writeUint8(W(this.constructor));var e=0;null!==this._origin&&(e+=1),null!==this._right_origin&&(e+=4),null!==this._parentSub&&(e+=8),t.writeUint8(e),t.writeID(this._id),1&e&&t.writeID(this._origin._lastId),4&e&&t.writeID(this._right_origin._id),0==(5&e)&&t.writeID(this._parent._id),8&e&&t.writeVarString(JSON.stringify(this._parentSub))}},{key:"_fromBinary",value:function(t,e){var n=[],r=e.readUint8(),i=e.readID();if(this._id=i,1&r){var o=e.readID(),s=t.os.getItemCleanEnd(o);null===s?n.push(o):(this._origin=s,this._left=this._origin)}if(4&r){var a=e.readID(),l=t.os.getItemCleanStart(a);null===l?n.push(a):(this._right=l,this._right_origin=l)}if(0==(5&r)){var u=e.readID();if(null===this._parent){var h=t.os.get(u);null===h?n.push(u):this._parent=h}}else null===this._parent&&(null!==this._origin?this._parent=this._origin._parent:null!==this._right_origin&&(this._parent=this._right_origin._parent));return 8&r&&(this._parentSub=JSON.parse(e.readVarString())),t.ss.getState(i.user)<i.clock&&n.push(new at(i.user,i.clock-1)),n}},{key:"_lastId",get:function(){return new at(this._id.user,this._id.clock+this._length-1)}},{key:"_length",get:function(){return 1}}]),t}(),pt=function(){function t(){K(this,t),this.eventListeners=[]}return tt(t,[{key:"destroy",value:function(){this.eventListeners=null}},{key:"addEventListener",value:function(t){this.eventListeners.push(t)}},{key:"removeEventListener",value:function(t){this.eventListeners=this.eventListeners.filter(function(e){return t!==e})}},{key:"removeAllEventListeners",value:function(){this.eventListeners=[]}},{key:"callEventListeners",value:function(t){for(var e=0;e<this.eventListeners.length;e++)try{(0,this.eventListeners[e])(t)}catch(t){console.error(t)}}}]),t}(),yt=function(t){function e(){K(this,e);var t=rt(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t._map=new Map,t._start=null,t._y=null,t._eventHandler=new pt,t._deepEventHandler=new pt,t}return nt(e,t),tt(e,[{key:"_callEventHandler",value:function(t){var e=this._y._transaction.changedParentTypes;this._eventHandler.callEventListeners(t);for(var n=this;n!==this._y;){var r=e.get(n);void 0===r&&(r=[],e.set(n,r)),r.push(t),n=n._parent}}},{key:"_copy",value:function(t){var n=et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_copy",this).call(this),r=new Map;n._map=r;var i=!0,o=!1,s=void 0;try{for(var a,l=this._map[Symbol.iterator]();!(i=(a=l.next()).done);i=!0){var u=it(a.value,2),h=u[0],c=u[1];if(t.has(c)||!c.deleted){c._copy(t)._parent=n,r.set(h,c._copy(t))}}}catch(t){o=!0,s=t}finally{try{!i&&l.return&&l.return()}finally{if(o)throw s}}var f=null;n._start=null;for(var _=this._start;null!==_;){if(t.has(_)||!_.deleted){var d=_._copy(t);d._left=f,d._origin=f,d._right=null,d._right_origin=null,d._parent=n,null===f?n._start=d:f._right=d,f=d}_=_._right}return n}},{key:"_transact",value:function(t){var e=this._y;null!==e?e.transact(t):t(e)}},{key:"observe",value:function(t){this._eventHandler.addEventListener(t)}},{key:"observeDeep",value:function(t){this._deepEventHandler.addEventListener(t)}},{key:"unobserve",value:function(t){this._eventHandler.removeEventListener(t)}},{key:"unobserveDeep",value:function(t){this._deepEventHandler.removeEventListener(t)}},{key:"_integrate",value:function(t){t._transaction.newTypes.add(this),et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_integrate",this).call(this,t),this._y=t;var n=this._start;null!==n&&(this._start=null,b(t,n));var r=this._map;this._map=new Map;var i=!0,o=!1,s=void 0;try{for(var a,l=r.values()[Symbol.iterator]();!(i=(a=l.next()).done);i=!0){b(t,a.value)}}catch(t){o=!0,s=t}finally{try{!i&&l.return&&l.return()}finally{if(o)throw s}}}},{key:"_delete",value:function(t,n){et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_delete",this).call(this,t,n),t._transaction.changedTypes.delete(this);var r=!0,i=!1,o=void 0;try{for(var s,a=this._map.values()[Symbol.iterator]();!(r=(s=a.next()).done);r=!0){var l=s.value;l instanceof vt&&!l._deleted&&l._delete(t,!1)}}catch(t){i=!0,o=t}finally{try{!r&&a.return&&a.return()}finally{if(i)throw o}}for(var u=this._start;null!==u;)u._deleted||u._delete(t,!1),u=u._right}}]),e}(vt),mt=function(t){function e(){K(this,e);var t=rt(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t._content=null,t}return nt(e,t),tt(e,[{key:"_copy",value:function(){var t=et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_copy",this).call(this);return t._content=this._content,t}},{key:"_fromBinary",value:function(t,n){var r=et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_fromBinary",this).call(this,t,n),i=n.readVarUint();this._content=new Array(i);for(var o=0;o<i;o++){var s=n.readVarString();this._content[o]=JSON.parse(s)}return r}},{key:"_toBinary",value:function(t){et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_toBinary",this).call(this,t);var n=this._content.length;t.writeVarUint(n);for(var r=0;r<n;r++)t.writeVarString(JSON.stringify(this._content[r]))}},{key:"_logString",value:function(){var t=null!==this._left?this._left._lastId:null,e=null!==this._origin?this._origin._lastId:null;return"ItemJSON(id:"+v(this._id)+",content:"+JSON.stringify(this._content)+",left:"+v(t)+",origin:"+v(e)+",right:"+v(this._right)+",parent:"+v(this._parent)+",parentSub:"+v(this._parentSub)+")"}},{key:"_splitAt",value:function(t,n){if(0===n)return this;if(n>=this._length)return this._right;var r=new e;return r._content=this._content.splice(n),m(t,this,r,n),r}},{key:"_length",get:function(){return this._content.length}}]),e}(vt),bt=function(){function t(e){K(this,t),this.target=e,this._path=null}return tt(t,[{key:"path",get:function(){if(null!==this._path)return this._path;for(var t=[],e=this.target,n=e._y;e._parent!==n;){var r=e._parent;if(null!==e._parentSub)t.push(e._parentSub);else{var i=!0,o=!1,s=void 0;try{for(var a,l=r[Symbol.iterator]();!(i=(a=l.next()).done);i=!0){var u=it(a.value,2),h=u[0];if(u[1]===e){t.push(h);break}}}catch(t){o=!0,s=t}finally{try{!i&&l.return&&l.return()}finally{if(o)throw s}}}e=r}return this._path=t,t}}]),t}(),kt=function(t){function e(t,n){K(this,e);var r=rt(this,(e.__proto__||Object.getPrototypeOf(e)).call(this,t));return r.remote=n,r}return nt(e,t),e}(bt),wt=function(t){function e(){return K(this,e),rt(this,(e.__proto__||Object.getPrototypeOf(e)).apply(this,arguments))}return nt(e,t),tt(e,[{key:"_callObserver",value:function(t,e){this._callEventHandler(new kt(this,e))}},{key:"get",value:function(t){for(var e=this._start;null!==e;){if(!e._deleted){if(t<e._length)return e._content[e._length-t];t-=e._length}e=e._right}}},{key:"toArray",value:function(){return this.map(function(t){return t})}},{key:"toJSON",value:function(){return this.map(function(t){return t instanceof yt?null!==t.toJSON?t.toJSON():t.toString():t})}},{key:"map",value:function(t){var e=this,n=[];return this.forEach(function(r,i){n.push(t(r,i,e))}),n}},{key:"forEach",value:function(t){for(var e=0,n=this._start;null!==n;){if(!n._deleted)if(n instanceof yt)t(n,e++,this);else for(var r=n._content,i=r.length,o=0;o<i;o++)e++,t(r[o],e,this);n=n._right}}},{key:Symbol.iterator,value:function(){return{next:function(){for(;null!==this._item&&(this._item._deleted||this._item._length<=this._itemElement);)this._item=this._item._right,this._itemElement=0;if(null===this._item)return{done:!0};var t=void 0;return t=this._item instanceof yt?this._item:this._item._content[this._itemElement++],{value:[this._count,t],done:!1}},_item:this._start,_itemElement:0,_count:0}}},{key:"delete",value:function(t){var e=this,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:1;if(this._y.transact(function(){for(var r=e._start,i=0;null!==r&&n>0;){if(!r._deleted)if(i<=t&&t<i+r._length){var o=t-i;r=r._splitAt(e._y,o),r._splitAt(e._y,n),n-=r._length,r._delete(e._y),i+=o}else i+=r._length;r=r._right}}),n>0)throw new Error("Delete exceeds the range of the YArray")}},{key:"insertAfter",value:function(t,e){var n=this;this._transact(function(r){var i=void 0;i=null===t?n._start:t._right;for(var o=null,s=0;s<e.length;s++){var a=e[s];"function"==typeof a&&(a=new a),a instanceof yt?(null!==o&&(null!==r&&o._integrate(r),t=o,o=null),a._origin=t,a._left=t,a._right=i,a._right_origin=i,a._parent=n,null!==r?a._integrate(r):null===t?n._start=a:t._right=a,t=a):(null===o&&(o=new mt,o._origin=t,o._left=t,o._right=i,o._right_origin=i,o._parent=n,o._content=[]),o._content.push(a))}null!==o&&null!==r&&o._integrate(r)})}},{key:"insert",value:function(t,e){for(var n=null,r=this._start,i=0,o=this._y;null!==r;){var s=r._deleted?0:r._length-1;if(i<=t&&t<=i+s){var a=t-i;r=r._splitAt(o,a),n=r._left,i+=a;break}r._deleted||(i+=r._length),n=r,r=r._right}if(t>i)throw new Error("Position exceeds array range!");this.insertAfter(n,e)}},{key:"_logString",value:function(){var t=null!==this._left?this._left._lastId:null,e=null!==this._origin?this._origin._lastId:null;return"YArray(id:"+v(this._id)+",start:"+v(this._start)+",left:"+v(t)+",origin:"+v(e)+",right:"+v(this._right)+",parent:"+v(this._parent)+",parentSub:"+v(this._parentSub)+")"}},{key:"length",get:function(){for(var t=0,e=this._start;null!==e;)e._deleted||(t+=e._length),e=e._right;return t}}]),e}(yt),St=function(t){function e(t,n,r){K(this,e);var i=rt(this,(e.__proto__||Object.getPrototypeOf(e)).call(this,t));return i.keysChanged=n,i.remote=r,i}return nt(e,t),e}(bt),Et=function(t){function e(){return K(this,e),rt(this,(e.__proto__||Object.getPrototypeOf(e)).apply(this,arguments))}return nt(e,t),tt(e,[{key:"_callObserver",value:function(t,e){this._callEventHandler(new St(this,t,e))}},{key:"toJSON",value:function(){var t={},e=!0,n=!1,r=void 0;try{for(var i,o=this._map[Symbol.iterator]();!(e=(i=o.next()).done);e=!0){var s=it(i.value,2),a=s[0],l=s[1];if(!l._deleted){var u=void 0;u=l instanceof yt?void 0!==l.toJSON?l.toJSON():l.toString():l._content[0],t[a]=u}}}catch(t){n=!0,r=t}finally{try{!e&&o.return&&o.return()}finally{if(n)throw r}}return t}},{key:"keys",value:function(){var t=[],e=!0,n=!1,r=void 0;try{for(var i,o=this._map[Symbol.iterator]();!(e=(i=o.next()).done);e=!0){var s=it(i.value,2),a=s[0];s[1]._deleted||t.push(a)}}catch(t){n=!0,r=t}finally{try{!e&&o.return&&o.return()}finally{if(n)throw r}}return t}},{key:"delete",value:function(t){var e=this;this._transact(function(n){var r=e._map.get(t);null!==n&&void 0!==r&&r._delete(n)})}},{key:"set",value:function(t,e){var n=this;return this._transact(function(r){var i=n._map.get(t)||null;if(null!==i){if(i instanceof mt&&i._content[0]===e)return e;null!==r&&i._delete(r)}var o=void 0;"function"==typeof e?(o=new e,e=o):e instanceof vt?o=e:(o=new mt,o._content=[e]),o._right=i,o._right_origin=i,o._parent=n,o._parentSub=t,null!==r?o._integrate(r):n._map.set(t,o)}),e}},{key:"get",value:function(t){var e=this._map.get(t);if(void 0!==e&&!e._deleted)return e instanceof yt?e:e._content[e._content.length-1]}},{key:"has",value:function(t){var e=this._map.get(t);return void 0!==e&&!e._deleted}},{key:"_logString",value:function(){var t=null!==this._left?this._left._lastId:null,e=null!==this._origin?this._origin._lastId:null;return"YMap(id:"+v(this._id)+",mapSize:"+this._map.size+",left:"+v(t)+",origin:"+v(e)+",right:"+v(this._right)+",parent:"+v(this._parent)+",parentSub:"+v(this._parentSub)+")"}}]),e}(yt),Ot=function(t){function e(){K(this,e);var t=rt(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t._content=null,t}return nt(e,t),tt(e,[{key:"_copy",value:function(){var t=et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_copy",this).call(this);return t._content=this._content,t}},{key:"_fromBinary",value:function(t,n){var r=et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_fromBinary",this).call(this,t,n);return this._content=n.readVarString(),r}},{key:"_toBinary",value:function(t){et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_toBinary",this).call(this,t),t.writeVarString(this._content)}},{key:"_logString",value:function(){var t=null!==this._left?this._left._lastId:null,e=null!==this._origin?this._origin._lastId:null;return"ItemJSON(id:"+v(this._id)+",content:"+JSON.stringify(this._content)+",left:"+v(t)+",origin:"+v(e)+",right:"+v(this._right)+",parent:"+v(this._parent)+",parentSub:"+v(this._parentSub)+")"}},{key:"_splitAt",value:function(t,n){if(0===n)return this;if(n>=this._length)return this._right;var r=new e;return r._content=this._content.slice(n),this._content=this._content.slice(0,n),m(t,this,r,n),r}},{key:"_length",get:function(){return this._content.length}}]),e}(vt),At=function(t){function e(t){K(this,e);var n=rt(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));if("string"==typeof t){var r=new Ot;r._parent=n,r._content=t,n._start=r}return n}return nt(e,t),tt(e,[{key:"toString",value:function(){for(var t=[],e=this._start;null!==e;)e._deleted||t.push(e._content),e=e._right;return t.join("")}},{key:"insert",value:function(t,e){var n=this;this._transact(function(r){for(var i=null,o=n._start,s=0;null!==o;){if(s<=t&&t<s+o._length){var a=t-s;o=o._splitAt(n._y,t-s),i=o._left,s+=a;break}s+=o._length,i=o,o=o._right}if(t>s)throw new Error("Position exceeds array range!");var l=new Ot;l._origin=i,l._left=i,l._right=o,l._right_origin=o,l._parent=n,l._content=e,null!==r?l._integrate(n._y):null===i?n._start=l:i._right=l})}},{key:"_logString",value:function(){var t=null!==this._left?this._left._lastId:null,e=null!==this._origin?this._origin._lastId:null;return"YText(id:"+v(this._id)+",start:"+v(this._start)+",left:"+v(t)+",origin:"+v(e)+",right:"+v(this._right)+",parent:"+v(this._parent)+",parentSub:"+v(this._parentSub)+")"}}]),e}(wt),Ut=function(t){function e(t){K(this,e);var n=null,r=null;null!=t&&(null!=t.nodeType&&t.nodeType===t.TEXT_NODE?(n=t,r=n.nodeValue):"string"==typeof t&&(r=t));var i=rt(this,(e.__proto__||Object.getPrototypeOf(e)).call(this,r));return i._dom=null,i._domObserver=null,i._domObserverListener=null,i._scrollElement=null,null!==n&&i._setDom(t),i}return nt(e,t),tt(e,[{key:"setDomFilter",value:function(){}},{key:"enableSmartScrolling",value:function(t){this._scrollElement=t}},{key:"_setDom",value:function(t){null!=this._dom&&this._unbindFromDom(),null!=t._yxml&&t._yxml._unbindFromDom(),this._dom=t,t._yxml=this}},{key:"getDom",value:function(t){if(t=t||document,null===this._dom){var e=t.createTextNode(this.toString());return this._setDom(e),e}return this._dom}},{key:"_delete",value:function(t,n){this._unbindFromDom(),et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_delete",this).call(this,t,n)}},{key:"_unbindFromDom",value:function(){null!=this._domObserver&&(this._domObserver.disconnect(),this._domObserver=null),null!=this._dom&&(this._dom._yxml=null,this._dom=null)}}]),e}(At),Bt=null,xt=null,Dt=void 0;Dt="undefined"!=typeof getSelection?function(t,e){if(e){xt={from:null,to:null,fromY:null,toY:null},Bt=getSelection();var n=Bt.anchorNode;if(null!==n&&null!=n._yxml){var r=n._yxml;xt.from=A(r,Bt.anchorOffset),xt.fromY=r._y}var i=Bt.focusNode;if(null!==i&&null!=i._yxml){var o=i._yxml;xt.to=A(o,Bt.focusOffset),xt.toY=o._y}}}:function(){};var It=function(t){function e(t,n,r){K(this,e);var i=rt(this,(e.__proto__||Object.getPrototypeOf(e)).call(this,t));return i.childListChanged=!1,i.attributesChanged=new Set,i.remote=r,n.forEach(function(t){null===t?i.childListChanged=!0:i.attributesChanged.add(t)}),i}return nt(e,t),e}(bt),Lt=-1,Nt=1,Vt=0,Tt=x;Tt.INSERT=Nt,Tt.DELETE=Lt,Tt.EQUAL=Vt;var Pt=Tt,Ct=function(t){function e(){K(this,e);var t=rt(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));t._dom=null,t._domFilter=k,t._domObserver=null;var n=!0;return t._mutualExclude=function(e){if(n){n=!1;try{e()}catch(t){console.error(t)}t._domObserver.takeRecords(),n=!0}},t}return nt(e,t),tt(e,[{key:"enableSmartScrolling",value:function(t){this._scrollElement=t,this.forEach(function(e){e.enableSmartScrolling(t)})}},{key:"setDomFilter",value:function(t){this._domFilter=t,this.forEach(function(e){e.setDomFilter(t)})}},{key:"_callObserver",value:function(t,e){this._callEventHandler(new It(this,t,e))}},{key:"toString",value:function(){return this.map(function(t){return t.toString()}).join("")}},{key:"_delete",value:function(t,n){this._unbindFromDom(),et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_delete",this).call(this,t,n)}},{key:"_unbindFromDom",value:function(){null!=this._domObserver&&(this._domObserver.disconnect(),this._domObserver=null),null!=this._dom&&(this._dom._yxml=null,this._dom=null)}},{key:"insertDomElementsAfter",value:function(t,e){var n=R(this,e);return this.insertAfter(t,n),n}},{key:"insertDomElements",value:function(t,e){var n=R(this,e);return this.insert(t,n),n}},{key:"getDom",value:function(){return this._dom}},{key:"bindToDom",value:function(t){if(null!=this._dom&&this._unbindFromDom(),null!=t._yxml&&t._yxml._unbindFromDom(),null==MutationObserver)throw new Error("Not able to bind to a DOM element, because MutationObserver is not available!");t.innerHTML="",this._dom=t,t._yxml=this,this.forEach(function(e){t.insertBefore(e.getDom(),null)}),this._bindToDom(t)}},{key:"_bindToDom",value:function(t){var n=this;if(null!==this._parent&&null==this._parent._dom&&"undefined"!=typeof MutationObserver)return this._y.on("beforeTransaction",function(){n._domObserverListener(n._domObserver.takeRecords())}),this._y.on("beforeTransaction",Dt),this._y.on("afterTransaction",B),this.observeDeep(O.bind(this)),this._domObserverListener=function(t){n._mutualExclude(function(){n._y.transact(function(){var r=new Set;t.forEach(function(t){var i=t.target,o=i._yxml;if(null!=o)switch(t.type){case"characterData":for(var s=Pt(o.toString(),i.nodeValue),a=0,l=0;l<s.length;l++){var u=s[l];0===u[0]?a+=u[1].length:-1===u[0]?o.delete(a,u[1].length):(o.insert(a,u[1]),a+=u[1].length)}break;case"attributes":var h=t.attributeName;if(n._domFilter(i,[h]).length>0&&n.constructor!==e){var c=i.getAttribute(h);o.getAttribute(h)!==c&&(null==c?o.removeAttribute(h):o.setAttribute(h,c))}break;case"childList":r.add(t.target)}});var i=!0,o=!1,s=void 0;try{for(var a,l=r[Symbol.iterator]();!(i=(a=l.next()).done);i=!0){var u=a.value;null!=u._yxml&&E(u)}}catch(t){o=!0,s=t}finally{try{!i&&l.return&&l.return()}finally{if(o)throw s}}})})},this._domObserver=new MutationObserver(this._domObserverListener),this._domObserver.observe(t,{childList:!0,attributes:!0,characterData:!0,subtree:!0}),t}},{key:"_logString",value:function(){var t=null!==this._left?this._left._lastId:null,e=null!==this._origin?this._origin._lastId:null;return"YXml(id:"+v(this._id)+",left:"+v(t)+",origin:"+v(e)+",right:"+this._right+",parent:"+v(this._parent)+",parentSub:"+this._parentSub+")"}}]),e}(wt),Mt=function(t){function e(t,n){K(this,e);var r=rt(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return r.nodeName=null,r._scrollElement=null,"string"==typeof t?r.nodeName=t.toUpperCase():null!=t&&null!=t.nodeType&&t.nodeType===t.ELEMENT_NODE?(r.nodeName=t.nodeName,r._setDom(t)):r.nodeName="UNDEFINED","function"==typeof n&&(r._domFilter=n),r}return nt(e,t),tt(e,[{key:"_copy",value:function(t){var n=et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_copy",this).call(this,t);return n.nodeName=this.nodeName,n}},{key:"_setDom",value:function(t){if(null!=this._dom)throw new Error("Only call this method if you know what you are doing ;)");if(null!=t._yxml)throw new Error("Already bound to an YXml type");this._dom=t,t._yxml=this;for(var e=[],n=0;n<t.attributes.length;n++)e.push(t.attributes[n].name);e=this._domFilter(t,e);for(var r=0;r<e.length;r++){var i=e[r],o=t.getAttribute(i);this.setAttribute(i,o)}return this.insertDomElements(0,Array.prototype.slice.call(t.childNodes)),this._bindToDom(t),t}},{key:"_fromBinary",value:function(t,n){var r=et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_fromBinary",this).call(this,t,n);return this.nodeName=n.readVarString(),r}},{key:"_toBinary",value:function(t){et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_toBinary",this).call(this,t),t.writeVarString(this.nodeName)}},{key:"_integrate",value:function(t){if(null===this.nodeName)throw new Error("nodeName must be defined!");this._domFilter===k&&this._parent instanceof Ct&&(this._domFilter=this._parent._domFilter),et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"_integrate",this).call(this,t)}},{key:"toString",value:function(){var t=this.getAttributes(),n=[],r=[];for(var i in t)r.push(i);r.sort();for(var o=r.length,s=0;s<o;s++){var a=r[s];n.push(a+'="'+t[a]+'"')}var l=this.nodeName.toLocaleLowerCase();return"<"+l+(n.length>0?" "+n.join(" "):"")+">"+et(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"toString",this).call(this)+"</"+l+">"}},{key:"removeAttribute",value:function(){return Et.prototype.delete.apply(this,arguments)}},{key:"setAttribute",value:function(){return Et.prototype.set.apply(this,arguments)}},{key:"getAttribute",value:function(){return Et.prototype.get.apply(this,arguments)}},{key:"getAttributes",value:function(){var t={},e=!0,n=!1,r=void 0;try{for(var i,o=this._map[Symbol.iterator]();!(e=(i=o.next()).done);e=!0){var s=it(i.value,2),a=s[0],l=s[1];t[a]=l._content[0]}}catch(t){n=!0,r=t}finally{try{!e&&o.return&&o.return()}finally{if(n)throw r}}return t}},{key:"getDom",value:function(t){t=t||document;var e=this._dom;if(null==e){e=t.createElement(this.nodeName),this._dom=e,e._yxml=this;var n=this.getAttributes();for(var r in n)e.setAttribute(r,n[r]);this.forEach(function(n){e.appendChild(n.getDom(t))}),this._bindToDom(e)}return e}}]),e}(Ct),jt=new Map,Ft=new Map;Y(0,mt),Y(1,Ot),Y(2,dt),Y(3,wt),Y(4,Et),Y(5,At),Y(6,Ct),Y(7,Mt),Y(8,Ut);var Rt=16777215,Yt=function(){function t(e,n){K(this,t),this.user=Rt,this.name=e,this.type=W(n)}return tt(t,[{key:"equals",value:function(t){return null!==t&&t.user===this.user&&t.name===this.name&&t.type===this.type}},{key:"lessThan",value:function(t){return this.user<t.user||this.user===t.user&&(this.name<t.name||this.name===t.name&&this.type<t.type)}}]),t}(),Jt=function(t){function e(t){K(this,e);var n=rt(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return n.y=t,n}return nt(e,t),tt(e,[{key:"logTable",value:function(){var t=[];this.iterate(null,null,function(e){t.push({id:v(e),origin:v(null===e._origin?null:e._origin._lastId),left:v(null===e._left?null:e._left._lastId),right:v(e._right),right_origin:v(e._right_origin),parent:v(e._parent),parentSub:e._parentSub,deleted:e._deleted,content:JSON.stringify(e._content)})}),console.table(t)}},{key:"get",value:function(t){var e=this.find(t);if(null===e&&t instanceof Yt){var n=J(t.type),r=this.y;e=new n,e._id=t,e._parent=r,r.transact(function(){e._integrate(r)}),this.put(e)}return e}},{key:"getItem",value:function(t){var e=this.findWithUpperBound(t);if(null===e)return null;var n=e._id;return t.user===n.user&&t.clock<n.clock+e._length?e:null}},{key:"getItemCleanStart",value:function(t){var e=this.getItem(t);if(null===e||1===e._length)return e;var n=e._id;return n.clock===t.clock?e:e._splitAt(this.y,t.clock-n.clock)}},{key:"getItemCleanEnd",value:function(t){var e=this.getItem(t);if(null===e||1===e._length)return e;var n=e._id;return n.clock+e._length-1===t.clock?e:(e._splitAt(this.y,t.clock-n.clock+1),e)}}]),e}(st),Wt=function(){function t(e){K(this,t),this.y=e,this.state=new Map}return tt(t,[{key:"logTable",value:function(){var t=[],e=!0,n=!1,r=void 0;try{for(var i,o=this.state[Symbol.iterator]();!(e=(i=o.next()).done);e=!0){var s=it(i.value,2),a=s[0],l=s[1];t.push({user:a,state:l})}}catch(t){n=!0,r=t}finally{try{!e&&o.return&&o.return()}finally{if(n)throw r}}console.table(t)}},{key:"getNextID",value:function(t){var e=this.y.userID,n=this.getState(e);return this.setState(e,n+t),new at(e,n)}},{key:"updateRemoteState",value:function(t){for(var e=t._id.user,n=this.state.get(e);null!==t&&t._id.clock===n;)n+=t._length,t=this.y.os.get(new at(e,n));this.state.set(e,n)}},{key:"getState",value:function(t){var e=this.state.get(t);return null==e?0:e}},{key:"setState",value:function(t,e){var n=this.y._transaction.beforeState;n.has(t)||n.set(t,this.getState(t)),this.state.set(t,e)}}]),t}(),zt=function(){function t(){K(this,t),this._eventListener=new Map}return tt(t,[{key:"_getListener",value:function(t){var e=this._eventListener.get(t);return void 0===e&&(e={once:new Set,on:new Set},this._eventListener.set(t,e)),e}},{key:"once",value:function(t,e){this._getListener(t).once.add(e)}},{key:"on",value:function(t,e){this._getListener(t).on.add(e)}},{key:"off",value:function(t,e){if(null==t||null==e)throw new Error("You must specify event name and function!");var n=this._eventListener.get(t);void 0!==n&&n.remove(e)}},{key:"emit",value:function(t){for(var e=arguments.length,n=Array(e>1?e-1:0),r=1;r<e;r++)n[r-1]=arguments[r];var i=this._eventListener.get(t);void 0!==i?(i.on.forEach(function(t){return t.apply(null,n)}),i.once.forEach(function(t){return t.apply(null,n)}),i.once=new Set):"error"===t&&console.error(n[0])}},{key:"destroy",value:function(){this._eventListener=null}}]),t}(),Ht=function t(e){K(this,t);var n=e._transaction.beforeState;this.toState=new at(e.userID,e.ss.getState(e.userID)-1),n.has(e.userID)?this.fromState=new at(e.userID,n.get(e.userID)):this.fromState=this.toState,this.deletedStructs=e._transaction.deletedStructs},Xt=function(){function t(e){var n=this;K(this,t),this._undoBuffer=[],this._redoBuffer=[],this._scope=e,this._undoing=!1,this._redoing=!1;var r=e._y;this.y=r,r.on("afterTransaction",function(t,e){if(!e&&(t._transaction.beforeState.has(t.userID)||t._transaction.deletedStructs.size>0)){var r=new Ht(t);n._undoing?n._redoBuffer.push(r):(n._undoBuffer.push(r),n._redoing||(n._redoBuffer=[]))}})}return tt(t,[{key:"undo",value:function(){this._undoing=!0,this._applyReverseOperation(this._undoBuffer),this._undoing=!1}},{key:"redo",value:function(){this._redoing=!0,this._applyReverseOperation(this._redoBuffer),this._redoing=!1}},{key:"_applyReverseOperation",value:function(t){var e=this;this.y.transact(function(){for(var n=!1;!n&&t.length>0;){var r=t.pop();e.y.os.getItemCleanStart(r.fromState),e.y.os.getItemCleanEnd(r.toState),e.y.os.iterate(r.fromState,r.toState,function(t){!t._deleted&&H(e.y,t,e._scope)&&(n=!0,t._delete(e.y))});var i=!0,o=!1,s=void 0;try{for(var a,l=r.deletedStructs[Symbol.iterator]();!(i=(a=l.next()).done);i=!0){var u=a.value;H(e.y,u,e._scope)&&u._parent!==e.y&&!u._parent._deleted&&(u._parent._id.user!==e.y.userID||u._parent._id.clock<r.fromState.clock||u._parent._id.clock>r.fromState.clock)&&(n=!0,u=u._copy(r.deletedStructs),u._integrate(e.y))}}catch(t){o=!0,s=t}finally{try{!i&&l.return&&l.return()}finally{if(o)throw s}}}})}}]),t}(),qt=1e3,$t=60*qt,Qt=60*$t,Zt=24*Qt,Gt=365.25*Zt,Kt=function(t,e){e=e||{};var n=void 0===t?"undefined":G(t);if("string"===n&&t.length>0)return X(t);if("number"===n&&!1===isNaN(t))return e.long?$(t):q(t);throw new Error("val is not a non-empty string or a valid number. val="+JSON.stringify(t))},te=t(function(t,e){function n(t){var n,r=0;for(n in t)r=(r<<5)-r+t.charCodeAt(n),r|=0;return e.colors[Math.abs(r)%e.colors.length]}function r(t){function r(){if(r.enabled){var t=r,n=+new Date,i=n-(l||n);t.diff=i,t.prev=l,t.curr=n,l=n;for(var o=new Array(arguments.length),s=0;s<o.length;s++)o[s]=arguments[s];o[0]=e.coerce(o[0]),"string"!=typeof o[0]&&o.unshift("%O");var a=0;o[0]=o[0].replace(/%([a-zA-Z%])/g,function(n,r){if("%%"===n)return n;a++;var i=e.formatters[r];if("function"==typeof i){var s=o[a];n=i.call(t,s),o.splice(a,1),a--}return n}),e.formatArgs.call(t,o);(r.log||e.log||console.log.bind(console)).apply(t,o)}}return r.namespace=t,r.enabled=e.enabled(t),r.useColors=e.useColors(),r.color=n(t),"function"==typeof e.init&&e.init(r),r}function i(t){e.save(t),e.names=[],e.skips=[];for(var n=("string"==typeof t?t:"").split(/[\s,]+/),r=n.length,i=0;i<r;i++)n[i]&&(t=n[i].replace(/\*/g,".*?"),"-"===t[0]?e.skips.push(new RegExp("^"+t.substr(1)+"$")):e.names.push(new RegExp("^"+t+"$")))}function o(){e.enable("")}function s(t){var n,r;for(n=0,r=e.skips.length;n<r;n++)if(e.skips[n].test(t))return!1;for(n=0,r=e.names.length;n<r;n++)if(e.names[n].test(t))return!0;return!1}function a(t){return t instanceof Error?t.stack||t.message:t}e=t.exports=r.debug=r.default=r,e.coerce=a,e.disable=o,e.enable=i,e.enabled=s,e.humanize=Kt,e.names=[],e.skips=[],e.formatters={};var l}),ee=t(function(t,e){function n(){return!("undefined"==typeof window||!window.process||"renderer"!==window.process.type)||("undefined"!=typeof document&&document.documentElement&&document.documentElement.style&&document.documentElement.style.WebkitAppearance||"undefined"!=typeof window&&window.console&&(window.console.firebug||window.console.exception&&window.console.table)||"undefined"!=typeof navigator&&navigator.userAgent&&navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/)&&parseInt(RegExp.$1,10)>=31||"undefined"!=typeof navigator&&navigator.userAgent&&navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/))}function r(t){var n=this.useColors;if(t[0]=(n?"%c":"")+this.namespace+(n?" %c":" ")+t[0]+(n?"%c ":" ")+"+"+e.humanize(this.diff),n){var r="color: "+this.color;t.splice(1,0,r,"color: inherit");var i=0,o=0;t[0].replace(/%[a-zA-Z%]/g,function(t){"%%"!==t&&(i++,"%c"===t&&(o=i))}),t.splice(o,0,r)}}function i(){return"object"===("undefined"==typeof console?"undefined":G(console))&&console.log&&Function.prototype.apply.call(console.log,console,arguments)}function o(t){try{null==t?e.storage.removeItem("debug"):e.storage.debug=t}catch(t){}}function s(){var t;try{t=e.storage.debug}catch(t){}return!t&&"undefined"!=typeof process&&"env"in process&&(t=process.env.DEBUG),t}e=t.exports=te,e.log=i,e.formatArgs=r,e.save=o,e.load=s,e.useColors=n,e.storage="undefined"!=typeof chrome&&void 0!==chrome.storage?chrome.storage.local:function(){try{return window.localStorage}catch(t){}}(),e.colors=["lightseagreen","forestgreen","goldenrod","dodgerblue","darkorchid","crimson"],e.formatters.j=function(t){try{return JSON.stringify(t)}catch(t){return"[UnexpectedJSONParseError]: "+t.message}},e.enable(s())}),ne=function(){function t(e,n){if(K(this,t),this.y=e,this.opts=n,
null==n.role||"master"===n.role)this.role="master";else{if("slave"!==n.role)throw new Error("Role must be either 'master' or 'slave'!");this.role="slave"}this.log=ee("y:connector"),this.logMessage=ee("y:connector-message"),this._forwardAppliedStructs=n.forwardAppliedOperations||!1,this.role=n.role,this.connections=new Map,this.isSynced=!1,this.userEventListeners=[],this.whenSyncedListeners=[],this.currentSyncTarget=null,this.debug=!0===n.debug,this.broadcastBuffer=new _t,this.broadcastBufferSize=0,this.protocolVersion=11,this.authInfo=n.auth||null,this.checkAuth=n.checkAuth||function(){return Promise.resolve("write")},null==n.maxBufferLength?this.maxBufferLength=-1:this.maxBufferLength=n.maxBufferLength}return tt(t,[{key:"reconnect",value:function(){this.log("reconnecting..")}},{key:"disconnect",value:function(){return this.log("discronnecting.."),this.connections=new Map,this.isSynced=!1,this.currentSyncTarget=null,this.whenSyncedListeners=[],Promise.resolve()}},{key:"onUserEvent",value:function(t){this.userEventListeners.push(t)}},{key:"removeUserEventListener",value:function(t){this.userEventListeners=this.userEventListeners.filter(function(e){return t!==e})}},{key:"userLeft",value:function(t){if(this.connections.has(t)){this.log("%s: User left %s",this.y.userID,t),this.connections.delete(t),this._setSyncedWith(null);var e=!0,n=!1,r=void 0;try{for(var i,o=this.userEventListeners[Symbol.iterator]();!(e=(i=o.next()).done);e=!0){(0,i.value)({action:"userLeft",user:t})}}catch(t){n=!0,r=t}finally{try{!e&&o.return&&o.return()}finally{if(n)throw r}}}}},{key:"userJoined",value:function(t,e,n){if(null==e)throw new Error("You must specify the role of the joined user!");if(this.connections.has(t))throw new Error("This user already joined!");this.log("%s: User joined %s",this.y.userID,t),this.connections.set(t,{uid:t,isSynced:!1,role:e,processAfterAuth:[],processAfterSync:[],auth:n||null,receivedSyncStep2:!1});var r={};r.promise=new Promise(function(t){r.resolve=t}),this.connections.get(t).syncStep2=r;var i=!0,o=!1,s=void 0;try{for(var a,l=this.userEventListeners[Symbol.iterator]();!(i=(a=l.next()).done);i=!0){(0,a.value)({action:"userJoined",user:t,role:e})}}catch(t){o=!0,s=t}finally{try{!i&&l.return&&l.return()}finally{if(o)throw s}}this._syncWithUser(t)}},{key:"whenSynced",value:function(t){this.isSynced?t():this.whenSyncedListeners.push(t)}},{key:"_syncWithUser",value:function(t){"slave"!==this.role&&u(this,t)}},{key:"_fireIsSyncedListeners",value:function(){if(!this.isSynced){this.isSynced=!0;var t=!0,e=!1,n=void 0;try{for(var r,i=this.whenSyncedListeners[Symbol.iterator]();!(t=(r=i.next()).done);t=!0){(0,r.value)()}}catch(t){e=!0,n=t}finally{try{!t&&i.return&&i.return()}finally{if(e)throw n}}this.whenSyncedListeners=[],this.y.emit("synced")}}},{key:"send",value:function(t,e){var n=this.y;if(!(e instanceof ArrayBuffer||e instanceof Uint8Array))throw new Error("Expected Message to be an ArrayBuffer or Uint8Array - don't use this method to send custom messages");this.log("User%s to User%s: Send '%y'",n.userID,t,e),this.logMessage("User%s to User%s: Send %Y",n.userID,t,[n,e])}},{key:"broadcast",value:function(t){var e=this.y;if(!(t instanceof ArrayBuffer||t instanceof Uint8Array))throw new Error("Expected Message to be an ArrayBuffer or Uint8Array - don't use this method to send custom messages");this.log("User%s: Broadcast '%y'",e.userID,t),this.logMessage("User%s: Broadcast: %Y",e.userID,[e,t])}},{key:"broadcastStruct",value:function(t){var e=this,n=0===this.broadcastBuffer.length;if(n&&(this.broadcastBuffer.writeVarString(this.y.room),this.broadcastBuffer.writeVarString("update"),this.broadcastBufferSize=0,this.broadcastBufferSizePos=this.broadcastBuffer.pos,this.broadcastBuffer.writeUint32(0)),this.broadcastBufferSize++,t._toBinary(this.broadcastBuffer),this.maxBufferLength>0&&this.broadcastBuffer.length>this.maxBufferLength){var r=this.broadcastBuffer;r.setUint32(this.broadcastBufferSizePos,this.broadcastBufferSize),this.broadcastBuffer=new _t,this.whenRemoteResponsive().then(function(){e.broadcast(r.createBuffer())})}else n&&setTimeout(function(){if(e.broadcastBuffer.length>0){var t=e.broadcastBuffer;t.setUint32(e.broadcastBufferSizePos,e.broadcastBufferSize),e.broadcast(t.createBuffer()),e.broadcastBuffer=new _t}},0)}},{key:"whenRemoteResponsive",value:function(){return new Promise(function(t){setTimeout(t,100)})}},{key:"receiveMessage",value:function(t,e,n){var r=this,i=this.y,o=i.userID;if(n=n||!1,!(e instanceof ArrayBuffer||e instanceof Uint8Array))return Promise.reject(new Error("Expected Message to be an ArrayBuffer or Uint8Array!"));if(t===o)return Promise.resolve();var s=new ct(e),a=new _t,l=s.readVarString();a.writeVarString(l);var u=s.readVarString(),h=this.connections.get(t);if(this.log("User%s from User%s: Receive '%s'",o,t,u),this.logMessage("User%s from User%s: Receive %Y",o,t,[i,e]),null==h&&!n)throw new Error("Received message from unknown peer!");if("sync step 1"===u||"sync step 2"===u){var c=s.readVarUint();if(null==h.auth)return h.processAfterAuth.push([u,h,s,a,t]),this.checkAuth(c,i,t).then(function(t){null==h.auth&&(h.auth=t,i.emit("userAuthenticated",{user:h.uid,auth:t}));var e=h.processAfterAuth;h.processAfterAuth=[],e.forEach(function(t){return r.computeMessage(t[0],t[1],t[2],t[3],t[4])})})}!n&&null==h.auth||"update"===u&&!h.isSynced?h.processAfterSync.push([u,h,s,a,t,!1]):this.computeMessage(u,h,s,a,t,n)}},{key:"computeMessage",value:function(t,e,n,i,o,s){if("sync step 1"!==t||"write"!==e.auth&&"read"!==e.auth){var a=this.y;a.transact(function(){if("sync step 2"===t&&"write"===e.auth)_(n,i,a,e,o);else{if("update"!==t||!s&&"write"!==e.auth)throw new Error("Unable to receive message");r(n,i,a,e,o)}},!0)}else c(n,i,this.y,e,o)}},{key:"_setSyncedWith",value:function(t){var e=this;if(null!=t){var n=this.connections.get(t);n.isSynced=!0;var r=n.processAfterSync;n.processAfterSync=[],r.forEach(function(t){e.computeMessage(t[0],t[1],t[2],t[3],t[4])})}var i=Array.from(this.connections.values());i.length>0&&i.every(function(t){return t.isSynced})&&this._fireIsSyncedListeners()}}]),t}();Ct._YXmlElement=Mt;var re=function(t){function e(t){K(this,e);var n=rt(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return n._opts=t,n.userID=null!=t._userID?t._userID:z(),n.share={},n.ds=new ut(n),n.os=new Jt(n),n.ss=new Wt(n),n.connector=new e[t.connector.name](n,t.connector),null!=t.persistence?(n.persistence=new e[t.persistence.name](n,t.persistence),n.persistence.retrieveContent()):n.persistence=null,n.connected=!0,n._missingStructs=new Map,n._readyToIntegrate=[],n._transaction=null,n}return nt(e,t),tt(e,[{key:"_beforeChange",value:function(){}},{key:"transact",value:function(t){var e=arguments.length>1&&void 0!==arguments[1]&&arguments[1],n=null===this._transaction;n&&(this.emit("beforeTransaction",this,e),this._transaction=new gt(this));try{t(this)}catch(t){console.error(t)}n&&(this._transaction.changedTypes.forEach(function(t,n){n._deleted||n._callObserver(t,e)}),this._transaction.changedParentTypes.forEach(function(t,e){e._deleted||(t=t.filter(function(t){return!t.target._deleted}),e._deepEventHandler.callEventListeners(t))}),this.emit("afterTransaction",this,e),this._transaction=null)}},{key:"define",value:function(t,e){var n=new Yt(t,e),r=this.os.get(n);if(null===r&&(r=new e,r._id=n,r._parent=this,r._integrate(this),void 0!==this.share[t]))throw new Error("Type is already defined with a different constructor!");return void 0===this.share[t]&&(this.share[t]=r),r}},{key:"get",value:function(t){return this.share[t]}},{key:"disconnect",value:function(){return this.connected?(this.connected=!1,this.connector.disconnect()):Promise.resolve()}},{key:"reconnect",value:function(){return this.connected?Promise.resolve():(this.connected=!0,this.connector.reconnect())}},{key:"destroy",value:function(){this.share=null,null!=this.connector.destroy?this.connector.destroy():this.connector.disconnect(),this.os=null,this.ds=null,this.ss=null}},{key:"whenSynced",value:function(){var t=this;return new Promise(function(e){t.once("synced",function(){e()})})}},{key:"_start",get:function(){return null},set:function(t){return null}},{key:"room",get:function(){return this._opts.connector.room}}]),e}(zt);return re.extend=function(){for(var t=0;t<arguments.length;t++){var e=arguments[t];if("function"!=typeof e)throw new Error("Expected a function!");e(re)}},re.AbstractConnector=ne,re.Persisence=Z,re.Array=wt,re.Map=Et,re.Text=At,re.XmlElement=Mt,re.XmlFragment=Ct,re.XmlText=Ut,re.utils={BinaryDecoder:ct,UndoManager:Xt},re.debug=ee,ee.formatters.Y=d,ee.formatters.y=g,re});
//# sourceMappingURL=y.js.map