14 lines
4.7 KiB
JavaScript
14 lines
4.7 KiB
JavaScript
|
import{css as p,html as $,bind as a,unbind as x,Component as _}from"wkit";class z extends _{static props={axis:"xy",delay:1e3,distance:1};static styles=[p`:host{position:relative;display:block}:host .container{overflow:hidden;position:relative;width:100%;height:100%;max-height:inherit}:host .wrapper{overflow:auto;scrollbar-width:none;width:100%;height:100%;max-height:inherit;scrollbar-width:0}:host .wrapper::-webkit-scrollbar{display:none}:host .content{min-width:100%;width:fit-content;height:fit-content}`,p`.is-horizontal,.is-vertical{visibility:hidden;position:absolute;display:flex;justify-content:flex-end;opacity:0;user-select:none;transition:opacity .3s linear,visibility .3s linear}.is-horizontal .thumb,.is-vertical .thumb{display:block;border-radius:5px;background:rgba(44,47,53,.25);cursor:default;transition:width .1s linear,height .1s linear}.is-horizontal .thumb:hover,.is-vertical .thumb:hover{background:rgba(44,47,53,.5)}.is-horizontal{flex-direction:column;left:0;bottom:0;width:100%;height:10px}.is-horizontal .thumb{width:0;height:6px}.is-horizontal .thumb:hover{height:10px}.is-vertical{top:0;right:0;width:10px;height:100%}.is-vertical .thumb{width:6px;height:0}.is-vertical .thumb:hover{width:10px}`,p`:host(:hover) .is-horizontal,:host(:hover) .is-vertical{visibility:visible;opacity:1}:host([axis=x]) .wrapper{overflow-y:hidden}:host([axis=x]) .is-vertical{display:none}:host([axis=y]) .wrapper{overflow-x:hidden}:host([axis=y]) .is-horizontal{display:none}:host([disabled]) .wrapper{overflow:hidden}:host([disabled]) .is-vertical,:host([disabled]) .is-horizontal{display:none}`];stamp=0;cache={xBar:0,yBar:0,thumbX:0,thumbY:0};get scrollTop(){return this.$refs.box?.scrollTop||0}set scrollTop(t){t=+t,t===t&&(this.$refs.box.scrollTop=t)}get scrollLeft(){return this.$refs.box?.scrollLeft||0}set scrollLeft(t){t=+t,t===t&&(this.$refs.box.scrollLeft=t)}get scrollHeight(){return this.$refs.box?.scrollHeight}get scrollWidth(){return this.$refs.box?.scrollWidth}__init__(t){let e=this.offsetWidth,r=this.offsetHeight,s=this.scrollWidth,l=this.scrollHeight,h=50,i=50;h=r*(r/l)>>0,i=e*(e/s)>>0,h<50&&(h=50),i<50&&(i=50),i>=e&&(i=0),h>=r&&(h=0),this.cache.yBar=h,this.cache.xBar=i,i>0?(this.$refs.x.parentNode.style.display="flex",this.$refs.x.style.width=i+"px"):this.$refs.x.parentNode.style.display="none",h>0?(this.$refs.y.parentNode.style.display="flex",this.$refs.y.style.height=h+"px"):this.$refs.y.parentNode.style.display="none"}_fetchScrollX(t){let{xBar:e}=this.cache,{scrollWidth:r,offsetWidth:s}=this;return t<0?t=0:t>s-e&&(t=s-e),this.scrollLeft=(r-s)*(t/(s-e)),this.$refs.x.style.transform=`translateX(${t}px)`,t}_fetchScrollY(t){let{yBar:e}=this.cache,{scrollHeight:r,offsetHeight:s}=this;return t<0?t=0:t>s-e&&(t=s-e),this.scrollTop=(r-s)*(t/(s-e)),this.$refs.y.style.transform=`translateY(${t}px)`,t}_fireReachEnd(t="reach-bottom"){let e=this.delay,{scrollHeight:r,offsetHeight:s}=this,l=this.scrollTop,h=Date.now();if(h-this.stamp>e){if(t==="reach-bottom"){if(s+l<r)return}else if(l>0)return;this.stamp=h,this.$emit(t)}}mounted(){let t,e,r,s,l=i=>{let{thumbY:c,thumbX:n}=this.cache;t!==void 0&&(r=this._fetchScrollX(n+i.pageX-t)),e!==void 0&&(s=this._fetchScrollY(c+i.pageY-e))},h=i=>{Math.abs(i.pageY-e)>this.distance&&this._fireReachEnd(i.pageY>e?"reach-bottom":"reach-top"),t=void 0,e=void 0,this.cache.thumbX=r||0,this.cache.thumbY=s||0,delete this._active,x(document,"mousemove",l),x(document,"mouseup",h)};a(this.$refs.box,"scroll",i=>{if(i.stopPropagation(),this._active)return;let{xBar:c,yBar:n,thumbX:m,thumbY:f}=this.cache,{axis:d,scrollHeight:y,scrollWidth:g,offsetHeight:u,offsetWidth:b,scrollTop:v,scrollLeft:w}=this;if(!(c===0&&n===0)){if((d==="y"||d==="xy")&&n){let o=~~(v/(y-u)*(u-n));o!==f&&(this.cache.thumbY=o,this.$refs.y.style.transform=`translateY(${o}px)`,Math.abs(o-f)>this.distance&&this._fireReachEnd(o>f?"reach-bottom":"reach-top"))}if((d==="x"||d==="xy")&&c){let o=~~(w/(g-b)*(b-c));o!==m&&(this.cache.thumbX=o,this.$refs.x.style.transform=`translateX(${o}px)`)}this.$emit("scroll")}}),a(this.$refs.y,"mousedown",i=>{e=i.pag
|
||
|
|
<div class="container">
|
||
|
|
<div class="wrapper" ref="box">
|
||
|
|
<div class="content" ref="cont"><slot></slot></div>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<div class="is-horizontal">
|
||
|
|
<span ref="x" class="thumb"></span>
|
||
|
|
</div>
|
||
|
|
<div class="is-vertical">
|
||
|
|
<span ref="y" class="thumb"></span>
|
||
|
|
</div>
|
||
|
|
`}}z.reg("scroll");
|