wavesurfer.js/dist/plugins/hover.cjs

Audio waveform player

"use strict";class t{constructor(){this.listeners={}}on(t,e,s){if(this.listeners[t]||(this.listeners[t]=new Set),this.listeners[t].add(e),null==s?void 0:s.once){const s=()=>{this.un(t,s),this.un(t,e)};return this.on(t,s),s}return()=>this.un(t,e)}un(t,e){var s;null===(s=this.listeners[t])||void 0===s||s.delete(e)}once(t,e){return this.on(t,e,{once:!0})}unAll(){this.listeners={}}emit(t,...e){this.listeners[t]&&this.listeners[t].forEach((t=>t(...e)))}}class e extends t{constructor(t){super(),this.subscriptions=[],this.options=t}onInit(){}_init(t){this.wavesurfer=t,this.onInit()}destroy(){this.emit("destroy"),this.subscriptions.forEach((t=>t()))}}function s(t,e){const i=e.xmlns?document.createElementNS(e.xmlns,t):document.createElement(t);for(const[t,n]of Object.entries(e))if("children"===t)for(const[t,n]of Object.entries(e))"string"==typeof n?i.appendChild(document.createTextNode(n)):i.appendChild(s(t,n));else"style"===t?Object.assign(i.style,n):"textContent"===t?i.textContent=n:i.setAttribute(t,n.toString());return i}function i(t,e,i){const n=s(t,e||{});return null==i||i.appendChild(n),n}const n={lineWidth:1,labelSize:11,formatTimeCallback:t=>`${Math.floor(t/60)}:${`0${Math.floor(t)%60}`.slice(-2)}`};class r extends e{constructor(t){super(t||{}),this.unsubscribe=()=>{},this.onPointerMove=t=>{if(!this.wavesurfer)return;const e=this.wavesurfer.getWrapper().getBoundingClientRect(),{width:s}=e,i=t.clientX-e.left,n=Math.min(1,Math.max(0,i/s)),r=Math.min(s-this.options.lineWidth-1,i);this.wrapper.style.transform=`translateX(${r}px)`,this.wrapper.style.opacity="1";const o=this.wavesurfer.getDuration()||0;this.label.textContent=this.options.formatTimeCallback(o*n);const a=this.label.offsetWidth;this.label.style.transform=r+a>s?`translateX(-${a+this.options.lineWidth}px)`:"",this.emit("hover",n)},this.onPointerLeave=()=>{this.wrapper.style.opacity="0"},this.options=Object.assign({},n,t),this.wrapper=i("div",{part:"hover"}),this.label=i("span",{part:"hover-label"},this.wrapper)}static create(t){return new r(t)}addUnits(t){return`${t}${"number"==typeof t?"px":""}`}onInit(){if(!this.wavesurfer)throw Error("WaveSurfer is not initialized");const t=this.wavesurfer.options,e=this.options.lineColor||t.cursorColor||t.progressColor;Object.assign(this.wrapper.style,{position:"absolute",zIndex:10,left:0,top:0,height:"100%",pointerEvents:"none",borderLeft:`${this.addUnits(this.options.lineWidth)} solid ${e}`,opacity:"0",transition:"opacity .1s ease-in"}),Object.assign(this.label.style,{display:"block",backgroundColor:this.options.labelBackground,color:this.options.labelColor,fontSize:`${this.addUnits(this.options.labelSize)}`,transition:"transform .1s ease-in",padding:"2px 3px"});const s=this.wavesurfer.getWrapper();s.appendChild(this.wrapper),s.addEventListener("pointermove",this.onPointerMove),s.addEventListener("pointerleave",this.onPointerLeave),s.addEventListener("wheel",this.onPointerMove),this.unsubscribe=()=>{s.removeEventListener("pointermove",this.onPointerMove),s.removeEventListener("pointerleave",this.onPointerLeave),s.removeEventListener("wheel",this.onPointerLeave)}}destroy(){super.destroy(),this.unsubscribe(),this.wrapper.remove()}}module.exports=r;