misskey/packages/frontend/assets/tagcanvas.min.js

/**
 * Copyright (C) 2010-2021 Graham Breach
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
/**
 * TagCanvas 2.11
 * For more information, please contact <graham@goat1000.com>
 */
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g=c.getElementById(f),b=g.getBoundingClientRect(),a=c.documentElement,d=c.body,e=window,h=e.pageXOffset||a.scrollLeft,i=e.pageYOffset||a.scrollTop,j=a.clientLeft||d.clientLeft,k=a.clientTop||d.clientTop;return{x:b.left+h-j,y:b.top+i-k}}function aI(a,b,d,e){var c=a.radius*a.z1/(a.z1+a.z2+b.z);return{x:b.x*c*d,y:b.y*c*e,z:b.z,w:(a.z1-b.z)/a.z2}}function V(a){this.e=a,this.br=0,this.line=[],this.text=[],this.original=a.innerText||a.textContent}F=V.prototype,F.Empty=function(){for(var a=0;a<this.text.length;++a)if(this.text[a].length)return!1;return!0},F.Lines=function(c){var e=c?1:0,b,d,a;c=c||this.e,b=c.childNodes,d=b.length;for(a=0;a<d;++a)b[a].nodeName=='BR'?(this.text.push(this.line.join(' ')),this.br=1):b[a].nodeType==3?this.br?(this.line=[b[a].nodeValue],this.br=0):this.line.push(b[a].nodeValue):this.Lines(b[a]);return e||this.br||this.text.push(this.line.join(' ')),this.text},F.SplitWidth=function(h,e,f,g){var c,b,a,d=[];e.font=g+'px '+f;for(c=0;c<this.text.length;++c){a=this.text[c].split(/\s+/),this.line=[a[0]];for(b=1;b<a.length;++b)e.measureText(this.line.join(' ')+' '+a[b]).width>h?(d.push(this.line.join(' ')),this.line=[a[b]]):this.line.push(a[b]);d.push(this.line.join(' '))}return this.text=d};function _(a,b){this.ts=null,this.tc=a,this.tag=b,this.x=this.y=this.w=this.h=this.sc=1,this.z=0,this.pulse=1,this.pulsate=a.pulsateTo<1,this.colour=a.outlineColour,this.adash=~~a.outlineDash,this.agap=~~a.outlineDashSpace||this.adash,this.aspeed=a.outlineDashSpeed*1,this.colour=='tag'?this.colour=i(b.a,'color'):this.colour=='tagbg'&&(this.colour=i(b.a,'background-color')),this.Draw=this.pulsate?this.DrawPulsate:this.DrawSimple,this.radius=a.outlineRadius|0,this.SetMethod(a.outlineMethod,a.altImage)}f=_.prototype,f.SetMethod=function(a,d){var b={block:['PreDraw','DrawBlock'],colour:['PreDraw','DrawColour'],outline:['PostDraw','DrawOutline'],classic:['LastDraw','DrawOutline'],size:['PreDraw','DrawSize'],none:['LastDraw']},c=b[a]||b.outline;a=='none'?this.Draw=function(){return 1}:this.drawFunc=this[c[1]],this[c[0]]=this.Draw,d&&(this.RealPreDraw=this.PreDraw,this.PreDraw=this.DrawAlt)},f.Update=function(d,e,i,j,a,f,g,h){var b=this.tc.outlineOffset,c=2*b;this.x=a*d+g-b,this.y=a*e+h-b,this.w=a*i+c,this.h=a*j+c,this.sc=a,this.z=f},f.Ants=function(k){if(!this.adash)return;var b=this.adash,c=this.agap,a=this.aspeed,j=b+c,h=0,g=b,f=c,i=0,d=0,e;a&&(d=p(a)*(q()-this.ts)/50,a<0&&(d=864e4-d),a=~~d%j),a?(b>=a?(h=b-a,g=a):(f=j-a,i=c-f),e=[h,f,g,i]):e=[b,c],k.setLineDash(e)},f.DrawOutline=function(a,d,e,b,c,f){var g=h(this.radius,c/2,b/2);a.strokeStyle=f,this.Ants(a),y(a,d,e,b,c,g,!0)},f.DrawSize=function(i,n,m,l,k,j,a,h,g){var f=a.w,e=a.h,c,b,d;return this.pulsate?(a.image?d=(a.image.height+this.tc.outlineIncrease)/a.image.height:d=a.oscale,b=a.fimage||a.image,c=1+(d-1)*(1-this.pulse),a.h*=c,a.w*=c):b=a.oimage,a.alpha=1,a.Draw(i,h,g,b),a.h=e,a.w=f,1},f.DrawColour=function(d,h,i,e,f,g,a,b,c){return a.oimage?(this.pulse<1?(a.alpha=1-w(this.pulse,2),a.Draw(d,b,c,a.fimage),a.alpha=this.pulse):a.alpha=1,a.Draw(d,b,c,a.oimage),1):this[a.image?'DrawColourImage':'DrawColourText'](d,h,i,e,f,g,a,b,c)},f.DrawColourText=function(f,h,i,j,g,e,a,b,c){var d=a.colour;return a.colour=e,a.alpha=1,a.Draw(f,b,c),a.colour=d,1},f.DrawColourImage=function(a,q,p,o,n,m,i,r,l){var f=a.canvas,e=~~g(q,0),d=~~g(p,0),c=h(f.width-e,o)+.5|0,b=h(f.height-d,n)+.5|0,j;return v?(v.width=c,v.height=b):v=k(c,b),!v?this.SetMethod('outline'):(j=v.getContext('2d'),j.drawImage(f,e,d,c,b,0,0,c,b),a.clearRect(e,d,c,b),this.pulsate?i.alpha=1-w(this.pulse,2):i.alpha=1,i.Draw(a,r,l),a.setTransform(1,0,0,1,0,0),a.save(),a.beginPath(),a.rect(e,d,c,b),a.clip(),a.globalCompositeOperation='source-in',a.fillStyle=m,a.fillRect(e,d,c,b),a.restore(),a.globalAlpha=1,a.globalCompositeOperation='destination-over',a.drawImage(v,0,0,c,b,e,d,c,b),a.globalCompositeOperation='source-over',1)},f.DrawAlt=function(b,a,c,d,f,g){var e=this.RealPreDraw(b,a,c,d,f,g);return a.alt&&(a.DrawImage(b,c,d,a.alt),e=1),e},f.DrawBlock=function(a,d,e,b,c,f){var g=h(this.radius,c/2,b/2);a.fillStyle=f,y(a,d,e,b,c,g)},f.DrawSimple=function(a,b,c,d,e,f){var g=this.tc;return a.setTransform(1,0,0,1,0,0),a.strokeStyle=this.colour,a.lineWidth=g.outlineThickness,a.shadowBlur=a.shadowOffsetX=a.shadowOffsetY=0,a.globalAlpha=f?e:1,this.drawFunc(a,this.x,this.y,this.w,this.h,this.colour,b,c,d)},f.DrawPulsate=function(h,d,e,f){var g=q()-this.ts,c=this.tc,b=c.pulsateTo+(1-c.pulsateTo)*(.5+l(2*Math.PI*g/(1e3*c.pulsateTime))/2);return this.pulse=b=a.Smooth(1,b),this.DrawSimple(h,d,e,f,b,1)},f.Active=function(d,a,b){var c=a>=this.x&&b>=this.y&&a<=this.x+this.w&&b<=this.y+this.h;return c?this.ts=this.ts||q():this.ts=null,c},f.PreDraw=f.PostDraw=f.LastDraw=x;function J(a,h,c,b,e,f,g,d,i,j,k,l,m,n){this.tc=a,this.image=null,this.text=h,this.text_original=n,this.line_widths=[],this.title=c.title||null,this.a=c,this.position=new s(b[0],b[1],b[2]),this.x=this.y=this.z=0,this.w=e,this.h=f,this.colour=g||a.textColour,this.bgColour=d||a.bgColour,this.bgRadius=i|0,this.bgOutline=j||this.colour,this.bgOutlineThickness=k|0,this.textFont=l||a.textFont,this.padding=m|0,this.sc=this.alpha=1,this.weighted=!a.weight,this.outline=new _(a,this),this.audio=null}d=J.prototype,d.Init=function(b){var a=this.tc;this.textHeight=a.textHeight,this.HasText()?this.Measure(a.ctxt,a):(this.w=this.iw,this.h=this.ih),this.SetShadowColour=a.shadowAlpha?this.SetShadowColourAlpha:this.SetShadowColourFixed,this.SetDraw(a)},d.Draw=x,d.HasText=function(){return this.text&&this.text[0].length>0},d.EqualTo=function(a){var b=a.getElementsByTagName('img');return this.a.href!=a.href?0:b.length?this.image.src==b[0].src:(a.innerText||a.textContent)==this.text_original},d.SetImage=function(a){this.image=this.fimage=a},d.SetAudio=function(a){this.audio=a,this.audio.load()},d.SetDraw=function(a){this.Draw=this.fimage?a.ie>7?this.DrawImageIE:this.DrawImage:this.DrawText,a.noSelect&&(this.CheckActive=x)},d.MeasureText=function(d){var a,e=this.text.length,b=0,c;for(a=0;a<e;++a)this.line_widths[a]=c=d.measureText(this.text[a]).width,b=g(b,c);return b},d.Measure=function(e,a){var f=ae(this.text,this.textFont,this.textHeight),b,k,h,i,g,l,j,c,d;j=f?f.max.y+f.min.y:this.textHeight,e.font=this.font=this.textHeight+'px '+this.textFont,l=this.MeasureText(e),a.txtOpt&&(b=a.txtScale,k=b*this.textHeight,h=k+'px '+this.textFont,i=[b*a.shadowOffset[0],b*a.shadowOffset[1]],e.font=h,g=this.MeasureText(e),d=new O(this.text,h,g+b,b*j+b,g,this.line_widths,a.textAlign,a.textVAlign,b),this.image&&d.SetImage(this.image,this.iw,this.ih,a.imagePosition,a.imagePadding,a.imageAlign,a.imageVAlign,a.imageScale),c=d.Create(this.colour,this.bgColour,this.bgOutline,b*this.bgOutlineThickness,a.shadow,b*a.shadowBlur,i,b*this.padding,b*this.bgRadius),a.outlineMethod=='colour'?this.oimage=d.Create(this.outline.colour,this.bgColour,this.outline.colour,b*this.bgOutlineThickness,a.shadow,b*a.shadowBlur,i,b*this.padding,b*this.bgRadius):a.outlineMethod=='size'&&(f=ae(this.text,this.textFont,this.textHeight+a.outlineIncrease),k=f.max.y+f.min.y,h=b*(this.textHeight+a.outlineIncrease)+'px '+this.textFont,e.font=h,g=this.MeasureText(e),d=new O(this.text,h,g+b,b*k+b,g,this.line_widths,a.textAlign,a.textVAlign,b),this.image&&d.SetImage(this.image,this.iw+a.outlineIncrease,this.ih+a.outlineIncrease,a.imagePosition,a.imagePadding,a.imageAlign,a.imageVAlign,a.imageScale),this.oimage=d.Create(this.colour,this.bgColour,this.bgOutline,b*this.bgOutlineThickness,a.shadow,b*a.shadowBlur,i,b*this.padding,b*this.bgRadius),this.oscale=this.oimage.width/c.width,a.outlineIncrease>0?c=H(c,this.oimage.width,this.oimage.height):this.oimage=H(this.oimage,c.width,c.height)),c&&(this.fimage=c,l=this.fimage.width/b,j=this.fimage.height/b),this.SetDraw(a),a.txtOpt=!!this.fimage),this.h=j,this.w=l},d.SetFont=function(a,b,c,d){this.textFont=a,this.colour=b,this.bgColour=c,this.bgOutline=d,this.Measure(this.tc.ctxt,this.tc)},d.SetWeight=function(c){var b=this.tc,e=b.weightMode.split(/[, ]/),d,a,f=c.length;if(!this.HasText())return;this.weighted=!0;for(a=0;a<f;++a)d=e[a]||'size','both'==d?(this.Weight(c[a],b.ctxt,b,'size',b.min_weight[a],b.max_weight[a],a),this.Weight(c[a],b.ctxt,b,'colour',b.min_weight[a],b.max_weight[a],a)):this.Weight(c[a],b.ctxt,b,d,b.min_weight[a],b.max_weight[a],a);this.Measure(b.ctxt,b)},d.Weight=function(b,i,a,d,f,h,e){b=isNaN(b)?1:b;var c=(b-f)/(h-f);'colour'==d?this.colour=L(a,c,e):'bgcolour'==d?this.bgColour=L(a,c,e):'bgoutline'==d?this.bgOutline=L(a,c,e):'outline'==d?this.outline.colour=L(a,c,e):'size'==d&&(a.weightSizeMin>0&&a.weightSizeMax>a.weightSizeMin?this.textHeight=a.weightSize*(a.weightSizeMin+(a.weightSizeMax-a.weightSizeMin)*c):this.textHeight=g(1,b*a.weightSize))},d.SetShadowColourFixed=function(a,b,c){a.shadowColor=b},d.SetShadowColourAlpha=function(a,b,c){a.shadowColor=aE(b,c)},d.DrawText=function(a,h,i){var e=this.tc,g=this.x,f=this.y,c=this.sc,b,d;a.globalAlpha=this.alpha,a.fillStyle=this.colour,e.shadow&&this.SetShadowColour(a,e.shadow,this.alpha),a.font=this.font,g+=h/c,f+=i/c-this.h/2;for(b=0;b<this.text.length;++b)d=g,'right'==e.textAlign?d+=this.w/2-this.line_widths[b]:'centre'==e.textAlign?d-=this.line_widths[b]/2:d-=this.w/2,a.setTransform(c,0,0,c,c*d,c*f),a.fillText(this.text[b],0,0),f+=this.textHeight},d.DrawImage=function(b,i,k,l){var e=this.x,f=this.y,a=this.sc,j=l||this.fimage,c=this.w,d=this.h,g=this.alpha,h=this.shadow;b.globalAlpha=g,h&&this.SetShadowColour(b,h,g),e+=i/a-c/2,f+=k/a-d/2,b.setTransform(a,0,0,a,a*e,a*f),b.drawImage(j,0,0,c,d)},d.DrawImageIE=function(b,d,e){var c=this.fimage,a=this.sc,f=c.width=this.w*a,g=c.height=this.h*a,h=this.x*a+d-f/2,i=this.y*a+e-g/2;b.setTransform(1,0,0,1,0,0),b.globalAlpha=this.alpha,b.drawImage(c,h,i)},d.Calc=function(g,e){var a,b=this.tc,d=b.minBrightness,f=b.maxBrightness,c=b.max_radius;return a=g.xform(this.position),this.xformed=a,a=aI(b,a,b.stretchX,b.stretchY),this.x=a.x,this.y=a.y,this.z=a.z,this.sc=a.w,this.alpha=e*G(d+(f-d)*(c-this.z)/(2*c),0,1),this.xformed},d.UpdateActive=function(h,e,f){var a=this.outline,b=this.w,c=this.h,d=this.x-b/2,g=this.y-c/2;return a.Update(d,g,b,c,this.sc,this.z,e,f),a},d.CheckActive=function(a,d,e){var b=this.tc,c=this.UpdateActive(a,d,e);return c.Active(a,b.mx,b.my)?c:null},d.Clicked=function(f){var b=this.a,a=b.target,d=b.href,e;if(a!=''&&a!='_self'){if(self.frames[a])self.frames[a].document.location=d;else{try{if(top.frames[a]){top.frames[a].document.location=d;return}}catch(a){}window.open(d,a)}return}if(c.createEvent){if(e=c.createEvent('MouseEvents'),e.initMouseEvent('click',1,1,window,0,0,0,0,0,0,0,0,0,0,null),!b.dispatchEvent(e))return}else if(b.fireEvent)if(!b.fireEvent('onclick'))return;c.location=d},d.StopAudio=function(){this.audio&&this.playing&&this.audio.pause(),this.stopped=1,this.playing=0},d.PlayAudio=function(){if(e==='off'||this.tc.audioOff)return;if(!e&&!ag())return;var a=this.tc.audio,c=this.tc.gain,d='suspended',b;if(this.audio)if(this.track||(this.track=e.createMediaElementSource(this.audio),this.gain=e.createGain(),this.track.connect(this.gain),this.gain.connect(e.destination)),a=this.audio,c=this.gain,!a.paused)return 1;if(a){if(e.state==d&&e.resume(),e.state==d)return;return c.gain.value=h(2,g(0,this.tc.audioVolume*1)),a.currentTime=0,this.stopped=0,b=a.play(),b!==void 0&&b.then(a=>{this.stopped?this.audio.pause():this.playing=1}),1}};function a(f,o,k){var d,i,b=c.getElementById(f),l=['id','class','innerHTML'];if(!b)throw 0;if(n(window.G_vmlCanvasManager)&&(b=window.G_vmlCanvasManager.initElement(b),this.ie=parseFloat(navigator.appVersion.split('MSIE')[1])),b&&(!b.getContext||!b.getContext('2d').fillText)){i=c.createElement('DIV');for(d=0;d<l.length;++d)i[l[d]]=b[l[d]];throw b.parentNode.insertBefore(i,b),b.parentNode.removeChild(b),0}for(d in a.options)this[d]=k&&n(k[d])?k[d]:n(a[d])?a[d]:a.options[d];if(this.canvas=b,this.ctxt=b.getContext('2d'),this.z1=250/g(this.depth,.001),this.z2=this.z1/this.zoom,this.radius=h(b.height,b.width)*.0075,this.max_radius=100,this.max_weight=[],this.min_weight=[],this.textFont=this.textFont&&Q(this.textFont),this.textHeight*=1,this.imageRadius=this.imageRadius.toString(),this.pulsateTo=G(this.pulsateTo,0,1),this.minBrightness=G(this.minBrightness,0,1),this.maxBrightness=G(this.maxBrightness,this.minBrightness,1),this.ctxt.textBaseline='top',this.lx=(this.lock+'').indexOf('x')+1,this.ly=(this.lock+'').indexOf('y')+1,this.frozen=this.dx=this.dy=this.fixedAnim=this.touchState=0,this.fixedAlpha=1,this.source=o||f,this.repeatTags=h(64,~~this.repeatTags),this.minTags=h(200,~~this.minTags),~~this.scrollPause>0?a.scrollPause=~~this.scrollPause:this.scrollPause=0,this.minTags>0&&this.repeatTags<1&&(d=this.GetTags().length)&&(this.repeatTags=af(this.minTags/d)-1),this.transform=m.Identity(),this.startTime=this.time=q(),this.mx=this.my=-1,this.centreImage&&av(this),this.Animate=this.dragControl?this.AnimateDrag:this.AnimatePosition,this.animTiming=typeof a[this.animTiming]=='function'?a[this.animTiming]:a.Smooth,this.shadowBlur||this.shadowOffset[0]||this.shadowOffset[1]?(this.ctxt.shadowColor=this.shadow,this.shadow=this.ctxt.shadowColor,this.shadowAlpha=aD()):delete this.shadow,this.activeAudio===!1?e='off':this.activeAudio&&this.LoadAudio(),this.Load(),o&&this.hideTags&&function(b){a.loaded?b.HideTags():t('load',function(){b.HideTags()},window)}(this),this.yaw=this.initial?this.initial[0]*this.maxSpeed:0,this.pitch=this.initial?this.initial[1]*this.maxSpeed:0,this.tooltip?(this.ctitle=b.title,b.title='',this.tooltip=='native'?this.Tooltip=this.TooltipNative:(this.Tooltip=this.TooltipDiv,this.ttdiv||(this.ttdiv=c.createElement('div'),this.ttdiv.className=this.tooltipClass,this.ttdiv.style.position='absolute',this.ttdiv.style.zIndex=b.style.zIndex+1,t('mouseover',function(a){a.target.style.display='none'},this.ttdiv),c.body.appendChild(this.ttdiv)))):this.Tooltip=this.TooltipNone,!this.noMouse&&!j[f]){j[f]=[['mousemove',ad],['mouseout',an],['mouseup',aq],['touchstart',ar],['touchend',ac],['touchcancel',ac],['touchmove',au]],this.dragControl&&(j[f].push(['mousedown',ap]),j[f].push(['selectstart',x])),this.wheelZoom&&(j[f].push(['mousewheel',ab]),j[f].push(['DOMMouseScroll',ab])),this.scrollPause&&j[f].push(['scroll',aw,window]);for(d=0;d<j[f].length;++d)i=j[f][d],t(i[0],i[1],i[2]?i[2]:b)}a.started||(a.NextFrame=window.requestAnimationFrame?az:aA,a.interval=this.interval,a.NextFrame(this.interval),a.started=1)}b=a.prototype,b.SourceElements=function(){return 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