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/**
 * @license
 * Copyright 2019 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
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/**
 * @license
 * Copyright 2017 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
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/**
 * @license
 * Copyright 2017 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
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/**
 * @license
 * Copyright 2017 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
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/**
 * @license
 * Copyright 2017 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
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/**
 * @license
 * Copyright 2017 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
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/**
 * @license
 * Copyright 2021 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
var nt;null===(nt=window.HTMLSlotElement)||void 0===nt||nt.prototype.assignedElements;class ht extends st{constructor(){super(),this.min=0,this.max=100,this.step=1,this.startAngle=135,this.arcLength=270,this.handleSize=6,this.handleZoom=1.5,this.readonly=!1,this.disabled=!1,this.dragging=!1,this.rtl=!1,this.outside=!1,this._scale=1,this.dragEnd=this.dragEnd.bind(this),this.drag=this.drag.bind(this),this._keyStep=this._keyStep.bind(this)}connectedCallback(){super.connectedCallback(),document.addEventListener("mouseup",this.dragEnd),document.addEventListener("touchend",this.dragEnd,{passive:!1}),document.addEventListener("mousemove",this.drag),document.addEventListener("touchmove",this.drag,{passive:!1}),document.addEventListener("keydown",this._keyStep)}disconnectedCallback(){super.disconnectedCallback(),document.removeEventListener("mouseup",this.dragEnd),document.removeEventListener("touchend",this.dragEnd),document.removeEventListener("mousemove",this.drag),document.removeEventListener("touchmove",this.drag),document.removeEventListener("keydown",this._keyStep)}get _start(){return this.startAngle*Math.PI/180}get _len(){return Math.min(this.arcLength*Math.PI/180,2*Math.PI-.01)}get _end(){return this._start+this._len}get _showHandle(){return!this.readonly&&(null!=this.value||null!=this.high&&null!=this.low)}_angleInside(t){let e=(this.startAngle+this.arcLength/2-t+180+360)%360-180;return e<this.arcLength/2&&e>-this.arcLength/2}_angle2xy(t){return this.rtl?{x:-Math.cos(t),y:Math.sin(t)}:{x:Math.cos(t),y:Math.sin(t)}}_xy2angle(t,e){return this.rtl&&(t=-t),(Math.atan2(e,t)-this._start+8*Math.PI)%(2*Math.PI)}_value2angle(t){const e=((t=Math.min(this.max,Math.max(this.min,t)))-this.min)/(this.max-this.min);return this._start+e*this._len}_angle2value(t){return Math.round((t/this._len*(this.max-this.min)+this.min)/this.step)*this.step}get _boundaries(){const t=this._angle2xy(this._start),e=this._angle2xy(this._end);let s=1;this._angleInside(270)||(s=Math.max(-t.y,-e.y));let i=1;this._angleInside(90)||(i=Math.max(t.y,e.y));let o=1;this._angleInside(180)||(o=Math.max(-t.x,-e.x));let r=1;return this._angleInside(0)||(r=Math.max(t.x,e.x)),{up:s,down:i,left:o,right:r,height:s+i,width:o+r}}_mouse2value(t){const e=t.type.startsWith("touch")?t.touches[0].clientX:t.clientX,s=t.type.startsWith("touch")?t.touches[0].clientY:t.clientY,i=this.shadowRoot.querySelector("svg").getBoundingClientRect(),o=this._boundaries,r=e-(i.left+o.left*i.width/o.width),n=s-(i.top+o.up*i.height/o.height),h=this._xy2angle(r,n);return this._angle2value(h)}dragStart(t){if(!this._showHandle||this.disabled)return;let e,s=t.target;if(this._rotation&&"focus"!==this._rotation.type)return;if(s.classList.contains("shadowpath"))if("touchstart"===t.type&&(e=window.setTimeout((()=>{this._rotation&&(this._rotation.cooldown=void 0)}),200)),null==this.low)s=this.shadowRoot.querySelector("#value");else{const e=this._mouse2value(t);s=Math.abs(e-this.low)<Math.abs(e-this.high)?this.shadowRoot.querySelector("#low"):this.shadowRoot.querySelector("#high")}if(s.classList.contains("overflow")&&(s=s.nextElementSibling),!s.classList.contains("handle"))return;s.setAttribute("stroke-width",String(2*this.handleSize*this.handleZoom*this._scale));const i="high"===s.id?this.low:this.min,o="low"===s.id?this.high:this.max;this._rotation={handle:s,min:i,max:o,start:this[s.id],type:t.type,cooldown:e},this.dragging=!0}_cleanupRotation(){const t=this._rotation.handle;t.setAttribute("stroke-width",String(2*this.handleSize*this._scale)),this._rotation=void 0,this.dragging=!1,t.blur()}dragEnd(t){if(!this._showHandle||this.disabled)return;if(!this._rotation)return;const e=this._rotation.handle;this._cleanupRotation();let s=new CustomEvent("value-changed",{detail:{[e.id]:this[e.id]},bubbles:!0,composed:!0});this.dispatchEvent(s),this.low&&this.low>=.99*this.max?this._reverseOrder=!0:this._reverseOrder=!1}drag(t){if(!this._showHandle||this.disabled)return;if(!this._rotation)return;if(this._rotation.cooldown)return window.clearTimeout(this._rotation.cooldown),void this._cleanupRotation();if("focus"===this._rotation.type)return;t.preventDefault();const e=this._mouse2value(t);this._dragpos(e)}_dragpos(t){if(t<this._rotation.min||t>this._rotation.max)return;const e=this._rotation.handle;this[e.id]=t;let s=new CustomEvent("value-changing",{detail:{[e.id]:t},bubbles:!0,composed:!0});this.dispatchEvent(s)}_keyStep(t){if(!this._showHandle||this.disabled)return;if(!this._rotation)return;const e=this._rotation.handle;"ArrowLeft"!==t.key&&"ArrowDown"!==t.key||(t.preventDefault(),this.rtl?this._dragpos(this[e.id]+this.step):this._dragpos(this[e.id]-this.step)),"ArrowRight"!==t.key&&"ArrowUp"!==t.key||(t.preventDefault(),this.rtl?this._dragpos(this[e.id]-this.step):this._dragpos(this[e.id]+this.step)),"Home"===t.key&&(t.preventDefault(),this._dragpos(this.min)),"End"===t.key&&(t.preventDefault(),this._dragpos(this.max))}updated(t){if(this.shadowRoot.querySelector(".slider")){const t=window.getComputedStyle(this.shadowRoot.querySelector(".slider"));if(t&&t.strokeWidth){const e=parseFloat(t.strokeWidth);if(e>this.handleSize*this.handleZoom){const t=this._boundaries,s=`\n          ${e/2*Math.abs(t.up)}px\n          ${e/2*Math.abs(t.right)}px\n          ${e/2*Math.abs(t.down)}px\n          ${e/2*Math.abs(t.left)}px`;this.shadowRoot.querySelector("svg").style.margin=s}}}if(this.shadowRoot.querySelector("svg")&&void 0===this.shadowRoot.querySelector("svg").style.vectorEffect){t.has("_scale")&&1!=this._scale&&this.shadowRoot.querySelector("svg").querySelectorAll("path").forEach((t=>{if(t.getAttribute("stroke-width"))return;const e=parseFloat(getComputedStyle(t).getPropertyValue("stroke-width"));t.style.strokeWidth=e*this._scale+"px"}));const e=this.shadowRoot.querySelector("svg").getBoundingClientRect(),s=Math.max(e.width,e.height);this._scale=2/s}}_renderArc(t,e){const s=e-t,i=this._angle2xy(t),o=this._angle2xy(e+.001);return`\n      M ${i.x} ${i.y}\n      A 1 1,\n        0,\n        ${s>Math.PI?"1":"0"} ${this.rtl?"0":"1"},\n        ${o.x} ${o.y}\n    `}_renderHandle(t){const e=this._value2angle(this[t]),s=this._angle2xy(e),i={value:this.valueLabel,low:this.lowLabel,high:this.highLabel}[t]||"";return T`
      <g class="${t} handle">
        <path
          id=${t}
          class="overflow"
          d="
          M ${s.x} ${s.y}
          L ${s.x+.001} ${s.y+.001}
          "
          vector-effect="non-scaling-stroke"
          stroke="rgba(0,0,0,0)"
          stroke-width="${4*this.handleSize*this._scale}"
          />
        <path
          id=${t}
          class="handle"
          d="
          M ${s.x} ${s.y}
          L ${s.x+.001} ${s.y+.001}
          "
          vector-effect="non-scaling-stroke"
          stroke-width="${2*this.handleSize*this._scale}"
          tabindex="0"
          @focus=${this.dragStart}
          @blur=${this.dragEnd}
          role="slider"
          aria-valuemin=${this.min}
          aria-valuemax=${this.max}
          aria-valuenow=${this[t]}
          aria-disabled=${this.disabled}
          aria-label=${i||""}
          />
        </g>
      `}render(){const t=this._boundaries;return O`
      <svg
        @mousedown=${this.dragStart}
        @touchstart=${this.dragStart}
        xmln="http://www.w3.org/2000/svg"
        viewBox="${-t.left} ${-t.up} ${t.width} ${t.height}"
        style="margin: ${this.handleSize*this.handleZoom}px;"
        ?disabled=${this.disabled}
        focusable="false"
      >
        <g class="slider">
          <path
            class="path"
            d=${this._renderArc(this._start,this._end)}
            vector-effect="non-scaling-stroke"
          />
          <g class="bar">
            ${null!=this.low&&null!=this.high&&this.outside?T`
          <path
            class="bar low"
            vector-effect="non-scaling-stroke"
            d=${this._renderArc(this._value2angle(this.min),this._value2angle(this.low))}
          />
          <path
            class="bar high"
            vector-effect="non-scaling-stroke"
            d=${this._renderArc(this._value2angle(this.high),this._value2angle(this.max))}
          />
          `:T`
          <path
            class="bar"
            vector-effect="non-scaling-stroke"
            d=${this._renderArc(this._value2angle(null!=this.low?this.low:this.min),this._value2angle(null!=this.high?this.high:this.value))}
          />
          `}
          </g>
          <path
            class="shadowpath"
            d=${this._renderArc(this._start,this._end)}
            vector-effect="non-scaling-stroke"
            stroke="rgba(0,0,0,0)"
            stroke-width="${3*this.handleSize*this._scale}"
            stroke-linecap="butt"
          />
        </g>

        <g class="handles">
          ${this._showHandle?null!=this.low?this._reverseOrder?T`${this._renderHandle("high")} ${this._renderHandle("low")}`:T`${this._renderHandle("low")} ${this._renderHandle("high")}`:T`${this._renderHandle("value")}`:""}
        </g>
      </svg>
    `}static get styles(){return n`
      :host {
        display: inline-block;
        width: 100%;
      }
      svg {
        overflow: visible;
        display: block;
      }
      path {
        transition: stroke 1s ease-out, stroke-width 200ms ease-out;
      }
      .slider {
        fill: none;
        stroke-width: var(--round-slider-path-width, 3);
        stroke-linecap: var(--round-slider-linecap, round);
      }
      .path {
        stroke: var(--round-slider-path-color, lightgray);
      }
      g.bar {
        stroke: var(--round-slider-bar-color, deepskyblue);
      }
      .bar.low {
        stroke: var(--round-slider-low-bar-color);
      }
      .bar.high {
        stroke: var(--round-slider-high-bar-color);
      }
      svg[disabled] .bar {
        stroke: var(--round-slider-disabled-bar-color, darkgray);
      }
      g.handles {
        stroke: var(
          --round-slider-handle-color,
          var(--round-slider-bar-color, deepskyblue)
        );
        stroke-linecap: round;
        cursor: var(--round-slider-handle-cursor, pointer);
      }
      g.low.handle {
        stroke: var(--round-slider-low-handle-color);
      }
      g.high.handle {
        stroke: var(--round-slider-high-handle-color);
      }
      svg[disabled] g.handles {
        stroke: var(--round-slider-disabled-bar-color, darkgray);
      }
      .handle:focus {
        outline: unset;
      }
    `}}t([rt({type:Number})],ht.prototype,"value",void 0),t([rt({type:Number})],ht.prototype,"high",void 0),t([rt({type:Number})],ht.prototype,"low",void 0),t([rt({type:Number})],ht.prototype,"min",void 0),t([rt({type:Number})],ht.prototype,"max",void 0),t([rt({type:Number})],ht.prototype,"step",void 0),t([rt({type:Number})],ht.prototype,"startAngle",void 0),t([rt({type:Number})],ht.prototype,"arcLength",void 0),t([rt({type:Number})],ht.prototype,"handleSize",void 0),t([rt({type:Number})],ht.prototype,"handleZoom",void 0),t([rt({type:Boolean})],ht.prototype,"readonly",void 0),t([rt({type:Boolean})],ht.prototype,"disabled",void 0),t([rt({type:Boolean,reflect:!0})],ht.prototype,"dragging",void 0),t([rt({type:Boolean})],ht.prototype,"rtl",void 0),t([rt()],ht.prototype,"valueLabel",void 0),t([rt()],ht.prototype,"lowLabel",void 0),t([rt()],ht.prototype,"highLabel",void 0),t([rt({type:Boolean})],ht.prototype,"outside",void 0),t([function(t){return rt({...t,state:!0})}()],ht.prototype,"_scale",void 0),customElements.define("round-slider",ht),exports.RoundSlider=ht;