@dbp-topics/signature/dist/shared/fabric.17ee24d1.es.js

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/*!
 * License: LGPL-2.1-or-later
 * Dependencies:
 *
 * @webcomponents/scoped-custom-element-registry: BSD-3-Clause
 * @dbp-toolkit/app-shell: LGPL-2.1-or-later
 * @dbp-toolkit/language-select: LGPL-2.1-or-later
 * @dbp-toolkit/common: LGPL-2.1-or-later
 * @dbp-toolkit/auth: LGPL-2.1-or-later
 * event-target-shim: MIT
 * @dbp-toolkit/notification: LGPL-2.1-or-later
 * @dbp-toolkit/theme-switcher: LGPL-2.1-or-later
 * path-to-regexp: MIT
 * universal-router: MIT
 * generateUrls: MIT
 * @dbp-toolkit/matomo: LGPL-2.1-or-later
 * @tugraz/web-components: LGPL-2.1-or-later
 * @babel/runtime: MIT
 * i18next: MIT
 * @lit/reactive-element: BSD-3-Clause
 * lit-html: BSD-3-Clause
 * lit-element: BSD-3-Clause
 * @open-wc/dedupe-mixin: MIT
 * @open-wc/scoped-elements: MIT
 * @digital-blueprint/annotpdf: MIT
 * pdfjs-dist: Apache-2.0
 * dommatrix: MIT
 * web-streams-polyfill: MIT
 * @dbp-toolkit/file-handling: LGPL-2.1-or-later
 * webdav: MIT
 * tabulator-tables: MIT
 * jose: MIT
 * file-saver: MIT
 * jquery: MIT
 * select2: MIT
 * @dbp-toolkit/resource-select: LGPL-2.1-or-later
 * fabric: MIT
 */
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t=Array.prototype.join,e={m:2,l:2,h:1,v:1,c:6,s:4,q:4,t:2,a:7},i={m:"l",M:"L"};function r(t,e,i,r,n,s,o,a,h,l,c){var u=S.util.cos(t),f=S.util.sin(t),d=S.util.cos(e),g=S.util.sin(e),p=i*n*d-r*s*g+o,v=r*n*d+i*s*g+a;return["C",l+h*(-i*n*f-r*s*u),c+h*(-r*n*f+i*s*u),p+h*(i*n*g+r*s*d),v+h*(r*n*g-i*s*d),p,v]}function n(t,e,i,r){var n=Math.atan2(e,t),s=Math.atan2(r,i);return s>=n?s-n:2*Math.PI-(n-s)}function s(t,e,i){for(var s=i[1],o=i[2],a=i[3],h=i[4],l=i[5],c=function(t,e,i,s,o,a,h){var l=Math.PI,c=h*l/180,u=S.util.sin(c),f=S.util.cos(c),d=0,g=0,p=-f*t*.5-u*e*.5,v=-f*e*.5+u*t*.5,m=(i=Math.abs(i))*i,y=(s=Math.abs(s))*s,_=v*v,x=p*p,b=m*y-m*_-y*x,C=0;if(b<0){var T=Math.sqrt(1-b/(m*y));i*=T,s*=T}else C=(o===a?-1:1)*Math.sqrt(b/(m*_+y*x));var w=C*i*v/s,O=-C*s*p/i,k=f*w-u*O+.5*t,P=u*w+f*O+.5*e,E=n(1,0,(p-w)/i,(v-O)/s),A=n((p-w)/i,(v-O)/s,(-p-w)/i,(-v-O)/s);0===a&&A>0?A-=2*l:1===a&&A<0&&(A+=2*l);for(var j=Math.ceil(Math.abs(A/l*2)),D=[],M=A/j,F=8/3*Math.sin(M/4)*Math.sin(M/4)/Math.sin(M/2),I=E+M,L=0;L<j;L++)D[L]=r(E,I,f,u,i,s,k,P,F,d,g),d=D[L][5],g=D[L][6],E=I,I+=M;return D}(i[6]-t,i[7]-e,s,o,h,l,a),u=0,f=c.length;u<f;u++)c[u][1]+=t,c[u][2]+=e,c[u][3]+=t,c[u][4]+=e,c[u][5]+=t,c[u][6]+=e;return c}function o(t,e,i,r){return Math.sqrt((i-t)*(i-t)+(r-e)*(r-e))}function a(t,e,i,r,n,s,o,a){return function(h){var l,c=(l=h)*l*l,u=function(t){return 3*t*t*(1-t)}(h),f=function(t){return 3*t*(1-t)*(1-t)}(h),d=function(t){return(1-t)*(1-t)*(1-t)}(h);return{x:o*c+n*u+i*f+t*d,y:a*c+s*u+r*f+e*d}}}function h(t,e,i,r,n,s,o,a){return function(h){var l=1-h,c=3*l*l*(i-t)+6*l*h*(n-i)+3*h*h*(o-n),u=3*l*l*(r-e)+6*l*h*(s-r)+3*h*h*(a-s);return Math.atan2(u,c)}}function l(t,e,i,r,n,s){return function(o){var a,h=(a=o)*a,l=function(t){return 2*t*(1-t)}(o),c=function(t){return(1-t)*(1-t)}(o);return{x:n*h+i*l+t*c,y:s*h+r*l+e*c}}}function c(t,e,i,r,n,s){return function(o){var 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m.push({length:s,x:d,y:g}),m}S.util.joinPath=function(t){return t.map((function(t){return t.join(" ")})).join(" ")},S.util.parsePath=function(t){var r,n,s,o,a,h=[],l=[],c=S.rePathCommand,u="[-+]?(?:\\d*\\.\\d+|\\d+\\.?)(?:[eE][-+]?\\d+)?\\s*",f="("+u+")"+S.commaWsp,d="([01])"+S.commaWsp+"?",g=new RegExp(f+"?"+f+"?"+f+d+d+f+"?("+u+")","g");if(!t||!t.match)return h;for(var p,v=0,m=(a=t.match(/[mzlhvcsqta][^mzlhvcsqta]*/gi)).length;v<m;v++){o=(r=a[v]).slice(1).trim(),l.length=0;var y=r.charAt(0);if(p=[y],"a"===y.toLowerCase())for(var _;_=g.exec(o);)for(var x=1;x<_.length;x++)l.push(_[x]);else for(;s=c.exec(o);)l.push(s[0]);x=0;for(var b=l.length;x<b;x++)n=parseFloat(l[x]),isNaN(n)||p.push(n);var C=e[y.toLowerCase()],T=i[y]||y;if(p.length-1>C)for(var w=1,O=p.length;w<O;w+=C)h.push([y].concat(p.slice(w,w+C))),y=T;else h.push(p)}return h},S.util.makePathSimpler=function(t){var e,i,r,n,o,a,h=0,l=0,c=t.length,u=0,f=0,d=[];for(i=0;i<c;++i){switch(r=!1,(e=t[i].slice(0))[0]){case"l":e[0]="L",e[1]+=h,e[2]+=l;case"L":h=e[1],l=e[2];break;case"h":e[1]+=h;case"H":e[0]="L",e[2]=l,h=e[1];break;case"v":e[1]+=l;case"V":e[0]="L",l=e[1],e[1]=h,e[2]=l;break;case"m":e[0]="M",e[1]+=h,e[2]+=l;case"M":h=e[1],l=e[2],u=e[1],f=e[2];break;case"c":e[0]="C",e[1]+=h,e[2]+=l,e[3]+=h,e[4]+=l,e[5]+=h,e[6]+=l;case"C":o=e[3],a=e[4],h=e[5],l=e[6];break;case"s":e[0]="S",e[1]+=h,e[2]+=l,e[3]+=h,e[4]+=l;case"S":"C"===n?(o=2*h-o,a=2*l-a):(o=h,a=l),h=e[3],l=e[4],e[0]="C",e[5]=e[3],e[6]=e[4],e[3]=e[1],e[4]=e[2],e[1]=o,e[2]=a,o=e[3],a=e[4];break;case"q":e[0]="Q",e[1]+=h,e[2]+=l,e[3]+=h,e[4]+=l;case"Q":o=e[1],a=e[2],h=e[3],l=e[4];break;case"t":e[0]="T",e[1]+=h,e[2]+=l;case"T":"Q"===n?(o=2*h-o,a=2*l-a):(o=h,a=l),e[0]="Q",h=e[1],l=e[2],e[1]=o,e[2]=a,e[3]=h,e[4]=l;break;case"a":e[0]="A",e[6]+=h,e[7]+=l;case"A":r=!0,d=d.concat(s(h,l,e)),h=e[6],l=e[7];break;case"z":case"Z":h=u,l=f}r||d.push(e),n=e[0]}return d},S.util.getSmoothPathFromPoints=function(t,e){var i,r=[],n=new S.Point(t[0].x,t[0].y),s=new S.Point(t[1].x,t[1].y),o=t.length,a=1,h=0,l=o>2;for(e=e||0,l&&(a=t[2].x<s.x?-1:t[2].x===s.x?0:1,h=t[2].y<s.y?-1:t[2].y===s.y?0:1),r.push(["M",n.x-a*e,n.y-h*e]),i=1;i<o;i++){if(!n.eq(s)){var c=n.midPointFrom(s);r.push(["Q",n.x,n.y,c.x,c.y])}n=t[i],i+1<t.length&&(s=t[i+1])}return l&&(a=n.x>t[i-2].x?1:n.x===t[i-2].x?0:-1,h=n.y>t[i-2].y?1:n.y===t[i-2].y?0:-1),r.push(["L",n.x+a*e,n.y+h*e]),r},S.util.getPathSegmentsInfo=d,S.util.getBoundsOfCurve=function(e,i,r,n,s,o,a,h){var l;if(S.cachesBoundsOfCurve&&(l=t.call(arguments),S.boundsOfCurveCache[l]))return S.boundsOfCurveCache[l];var c,u,f,d,g,p,v,m,y=Math.sqrt,_=Math.min,x=Math.max,b=Math.abs,C=[],T=[[],[]];u=6*e-12*r+6*s,c=-3*e+9*r-9*s+3*a,f=3*r-3*e;for(var w=0;w<2;++w)if(w>0&&(u=6*i-12*n+6*o,c=-3*i+9*n-9*o+3*h,f=3*n-3*i),b(c)<1e-12){if(b(u)<1e-12)continue;0<(d=-f/u)&&d<1&&C.push(d)}else(v=u*u-4*f*c)<0||(0<(g=(-u+(m=y(v)))/(2*c))&&g<1&&C.push(g),0<(p=(-u-m)/(2*c))&&p<1&&C.push(p));for(var O,k,P,E=C.length,A=E;E--;)O=(P=1-(d=C[E]))*P*P*e+3*P*P*d*r+3*P*d*d*s+d*d*d*a,T[0][E]=O,k=P*P*P*i+3*P*P*d*n+3*P*d*d*o+d*d*d*h,T[1][E]=k;T[0][A]=e,T[1][A]=i,T[0][A+1]=a,T[1][A+1]=h;var j=[{x:_.apply(null,T[0]),y:_.apply(null,T[1])},{x:x.apply(null,T[0]),y:x.apply(null,T[1])}];return S.cachesBoundsOfCurve&&(S.boundsOfCurveCache[l]=j),j},S.util.getPointOnPath=function(t,e,i){i||(i=d(t));for(var r=0;e-i[r].length>0&&r<i.length-2;)e-=i[r].length,r++;var n,s=i[r],o=e/s.length,a=s.command,h=t[r];switch(a){case"M":return{x:s.x,y:s.y,angle:0};case"Z":case"z":return(n=new S.Point(s.x,s.y).lerp(new S.Point(s.destX,s.destY),o)).angle=Math.atan2(s.destY-s.y,s.destX-s.x),n;case"L":return(n=new S.Point(s.x,s.y).lerp(new S.Point(h[1],h[2]),o)).angle=Math.atan2(h[2]-s.y,h[1]-s.x),n;case"C":case"Q":return f(s,e)}},S.util.transformPath=function(t,e,i){return i&&(e=S.util.multiplyTransformMatrices(e,[1,0,0,1,-i.x,-i.y])),t.map((function(t){for(var i=t.slice(0),r={},n=1;n<t.length-1;n+=2)r.x=t[n],r.y=t[n+1],r=S.util.transformPoint(r,e),i[n]=r.x,i[n+1]=r.y;return i}))}}(),function(){var t=Array.prototype.slice;function e(t,e,i){if(t&&0!==t.length){var r=t.length-1,n=e?t[r][e]:t[r];if(e)for(;r--;)i(t[r][e],n)&&(n=t[r][e]);else for(;r--;)i(t[r],n)&&(n=t[r]);return n}}S.util.array={fill:function(t,e){for(var i=t.length;i--;)t[i]=e;return t},invoke:function(e,i){for(var r=t.call(arguments,2),n=[],s=0,o=e.length;s<o;s++)n[s]=r.length?e[s][i].apply(e[s],r):e[s][i].call(e[s]);return n},min:function(t,i){return e(t,i,(function(t,e){return t<e}))},max:function(t,i){return e(t,i,(function(t,e){return t>=e}))}}}(),function(){function t(e,i,r){if(r)if(!S.isLikelyNode&&i instanceof Element)e=i;else if(i instanceof 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t.charAt(0).toUpperCase()+(e?t.slice(1):t.slice(1).toLowerCase())},escapeXml:function(t){return t.replace(/&/g,"&amp;").replace(/"/g,"&quot;").replace(/'/g,"&apos;").replace(/</g,"&lt;").replace(/>/g,"&gt;")},graphemeSplit:function(e){var i,r=0,n=[];for(r=0;r<e.length;r++)!1!==(i=t(e,r))&&n.push(i);return n}}}(),function(){var t=Array.prototype.slice,e=function(){},i=function(){for(var t in{toString:1})if("toString"===t)return!1;return!0}(),r=function(t,e,r){for(var n in e)n in t.prototype&&"function"==typeof t.prototype[n]&&(e[n]+"").indexOf("callSuper")>-1?t.prototype[n]=function(t){return function(){var i=this.constructor.superclass;this.constructor.superclass=r;var n=e[t].apply(this,arguments);if(this.constructor.superclass=i,"initialize"!==t)return n}}(n):t.prototype[n]=e[n],i&&(e.toString!==Object.prototype.toString&&(t.prototype.toString=e.toString),e.valueOf!==Object.prototype.valueOf&&(t.prototype.valueOf=e.valueOf))};function n(){}function s(e){for(var i=null,r=this;r.constructor.superclass;){var n=r.constructor.superclass.prototype[e];if(r[e]!==n){i=n;break}r=r.constructor.superclass.prototype}return i?arguments.length>1?i.apply(this,t.call(arguments,1)):i.call(this):console.log("tried to callSuper "+e+", method not found in prototype chain",this)}S.util.createClass=function(){var i=null,o=t.call(arguments,0);function a(){this.initialize.apply(this,arguments)}"function"==typeof o[0]&&(i=o.shift()),a.superclass=i,a.subclasses=[],i&&(n.prototype=i.prototype,a.prototype=new n,i.subclasses.push(a));for(var h=0,l=o.length;h<l;h++)r(a,o[h],i);return a.prototype.initialize||(a.prototype.initialize=e),a.prototype.constructor=a,a.prototype.callSuper=s,a}}(),h=!!S.document.createElement("div").attachEvent,l=["touchstart","touchmove","touchend"],S.util.addListener=function(t,e,i,r){t&&t.addEventListener(e,i,!h&&r)},S.util.removeListener=function(t,e,i,r){t&&t.removeEventListener(e,i,!h&&r)},S.util.getPointer=function(t){var e=t.target,i=S.util.getScrollLeftTop(e),r=function(t){var e=t.changedTouches;return e&&e[0]?e[0]:t}(t);return{x:r.clientX+i.left,y:r.clientY+i.top}},S.util.isTouchEvent=function(t){return l.indexOf(t.type)>-1||"touch"===t.pointerType},c=S.document.createElement("div"),u="string"==typeof c.style.opacity,f="string"==typeof c.style.filter,d=/alpha\s*\(\s*opacity\s*=\s*([^\)]+)\)/,g=function(t){return t},u?g=function(t,e){return t.style.opacity=e,t}:f&&(g=function(t,e){var i=t.style;return t.currentStyle&&!t.currentStyle.hasLayout&&(i.zoom=1),d.test(i.filter)?(e=e>=.9999?"":"alpha(opacity="+100*e+")",i.filter=i.filter.replace(d,e)):i.filter+=" alpha(opacity="+100*e+")",t}),S.util.setStyle=function(t,e){var i=t.style;if(!i)return t;if("string"==typeof e)return t.style.cssText+=";"+e,e.indexOf("opacity")>-1?g(t,e.match(/opacity:\s*(\d?\.?\d*)/)[1]):t;for(var r in e)if("opacity"===r)g(t,e[r]);else{var n="float"===r||"cssFloat"===r?void 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