@leafer-in/scroll/dist/scroll.esm.min.js

@leafer-in/scroll

import{Group as t,DataHelper as i,Box as s,Bounds as e,DragEvent as r,RenderEvent as h,ResizeEvent as o,Plugin as a}from"@leafer-ui/core";class n extends t{get isOutside(){return!0}constructor(t,s){super(),this.config={theme:"light",padding:0,minSize:10},t.isApp&&(t.sky.add(this),t=t.tree),this.target=t,s&&i.assign(this.config,s),this.changeTheme(this.config.theme),this.waitLeafer(this.__listenEvents,this)}changeTheme(t){let i;"string"==typeof t?(i={fill:"black",stroke:"rgba(255,255,255,0.8)"},"dark"===t&&(i.fill="white",i.stroke="rgba(0,0,0,0.2)")):i=t,this.scrollXBar||this.addMany(this.scrollXBar=new s,this.scrollYBar=new s),i=Object.assign({strokeAlign:"center",opacity:.5,width:6,cornerRadius:3,hoverStyle:{opacity:.6},pressStyle:{opacity:.7}},i),i.height||(i.height=i.width),this.scrollXBar.set(Object.assign(Object.assign({},i),{visible:!1})),this.scrollYBar.set(Object.assign(Object.assign({},i),{visible:!1})),this.leafer&&this.update()}update(t){if(this.dragScrolling)return;const{minSize:i,padding:s}=this.config,{zoomLayer:r,canvas:h}=this.target.leafer,{worldRenderBounds:o}=r;if(t&&this.scrollBounds&&this.scrollBounds.isSame(o))return;this.scrollBounds=new e(o);const a=h.bounds.clone().shrink(s),n=a.clone().add(o),l=this.ratioX=a.width/n.width,g=this.ratioY=a.height/n.height,d=(a.x-n.x)/n.width,c=(a.y-n.y)/n.height,u=l<1,p=g<1,{scrollXBar:_,scrollYBar:f}=this,{x:v,y:m,width:y,height:B}=a.shrink([2,p?f.width+6:2,u?_.height+6:2,2]);_.set({x:v+y*d,y:m+B+2,width:Math.max(y*l,i),visible:u}),f.set({x:v+y+2,y:m+B*c,height:Math.max(B*g,i),visible:p})}onDrag(t){this.dragScrolling=!0,this.__dragOut=this.app.config.move.dragOut,this.app.config.move.dragOut=!1;const i=t.current===this.scrollXBar,s=this.target.leafer.getValidMove(i?-t.moveX/this.ratioX:0,i?0:-t.moveY/this.ratioY);this.target.moveWorld(s.x,s.y),t.current.moveWorld(s.x&&-s.x*this.ratioX,s.y&&-s.y*this.ratioY)}onDragEnd(){this.dragScrolling=!1,this.app.config.move.dragOut=this.__dragOut}__listenEvents(){const{scrollXBar:t,scrollYBar:i}=this;this.__eventIds=[t.on_(r.DRAG,this.onDrag,this),i.on_(r.DRAG,this.onDrag,this),t.on_(r.END,this.onDragEnd,this),i.on_(r.END,this.onDragEnd,this),this.target.on_(h.BEFORE,(()=>this.update(!0))),this.target.leafer.on_(o.RESIZE,(()=>this.update()))]}__removeListenEvents(){this.off_(this.__eventIds)}destroy(){this.destroyed||(this.__removeListenEvents(),this.target=this.config=null,super.destroy())}}a.add("scroll");export{n as ScrollBar};
//# sourceMappingURL=scroll.esm.min.js.map