wavesurfer.js/dist/plugin/wavesurfer.minimap.min.js

Interactive navigable audio visualization using Web Audio and Canvas

/*!
 * wavesurfer.js minimap plugin 6.6.3 (2023-04-04)
 * https://wavesurfer-js.org
 * @license BSD-3-Clause
 */
!function(e,r){"object"==typeof exports&&"object"==typeof module?module.exports=r():"function"==typeof define&&define.amd?define("WaveSurfer",[],r):"object"==typeof exports?exports.WaveSurfer=r():(e.WaveSurfer=e.WaveSurfer||{},e.WaveSurfer.minimap=r())}(self,(()=>(()=>{"use strict";var e={521:(e,r)=>{function i(e){return i="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e},i(e)}function t(e,r){for(var t=0;t<r.length;t++){var n=r[t];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,(o=n.key,s=void 0,s=function(e,r){if("object"!==i(e)||null===e)return e;var t=e[Symbol.toPrimitive];if(void 0!==t){var n=t.call(e,r||"default");if("object"!==i(n))return n;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===r?String:Number)(e)}(o,"string"),"symbol"===i(s)?s:String(s)),n)}var o,s}Object.defineProperty(r,"__esModule",{value:!0}),r.default=void 0;var n=function(){function e(r,i){var t=this;if(function(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}(this,e),this.params=Object.assign({},i.params,{showRegions:!1,regionsPluginName:r.regionsPluginName||"regions",showOverview:!1,overviewBorderColor:"green",overviewBorderSize:2,container:!1,height:Math.max(Math.round(i.params.height/4),20)},r,{scrollParent:!1,fillParent:!0}),"string"==typeof r.container){var n=document.querySelector(r.container);n||console.warn("Wavesurfer minimap container ".concat(r.container," was not found! The minimap will be automatically appended below the waveform.")),this.params.container=n}r.container||(this.params.container=i.util.style(document.createElement("minimap"),{display:"block"})),this.drawer=new i.Drawer(this.params.container,this.params),this.wavesurfer=i,this.util=i.util,this.cleared=!1,this.renderEvent="redraw",this.overviewRegion=null,this.regionsPlugin=this.wavesurfer[this.params.regionsPluginName],this.drawer.createWrapper(),this.createElements();var o=!1;this._onShouldRender=function(){o||(t.bindWavesurferEvents(),t.bindMinimapEvents(),o=!0),document.body.contains(t.params.container)||i.container.insertBefore(t.params.container,null),t.regionsPlugin&&t.params.showRegions&&t.drawRegions(),t.render()},this._onAudioprocess=function(e){t.drawer.progress(t.wavesurfer.backend.getPlayedPercents())},this._onSeek=function(){return t.drawer.progress(i.backend.getPlayedPercents())},this._onScroll=function(e){if(!t.draggingOverview){var r=t.util.withOrientation(e.target,t.wavesurfer.params.vertical);t.moveOverviewRegion(r.scrollLeft/t.ratio)}},this._onMouseover=function(e){t.draggingOverview&&(t.draggingOverview=!1)};var s=0;this._onResize=i.util.debounce((function(){s!=t.drawer.wrapper.clientWidth&&(s=t.drawer.wrapper.clientWidth,t.render(),t.drawer.progress(t.wavesurfer.backend.getPlayedPercents()))})),this._onLoading=function(e){if(e>=100)t.cleared=!1;else if(!0!==t.cleared){var r=t.drawer.getWidth();t.drawer.drawPeaks([0],r,0,r),t.cleared=!0}},this._onZoom=function(e){t.render()},this.wavesurfer.on("zoom",this._onZoom)}var r,i,n;return r=e,n=[{key:"create",value:function(r){return{name:"minimap",deferInit:!(!r||!r.deferInit)&&r.deferInit,params:r,staticProps:{},instance:e}}}],(i=[{key:"init",value:function(){this.wavesurfer.isReady&&this._onShouldRender(),this.wavesurfer.on(this.renderEvent,this._onShouldRender)}},{key:"destroy",value:function(){window.removeEventListener("resize",this._onResize,!0),window.removeEventListener("orientationchange",this._onResize,!0),this.wavesurfer.drawer.wrapper.removeEventListener("mouseover",this._onMouseover),this.wavesurfer.un(this.renderEvent,this._onShouldRender),this.wavesurfer.un("seek",this._onSeek),this.wavesurfer.un("scroll",this._onScroll),this.wavesurfer.un("audioprocess",this._onAudioprocess),this.wavesurfer.un("zoom",this._onZoom),this.wavesurfer.un("loading",this._onLoading),this.drawer.destroy(),this.overviewRegion=null,this.unAll()}},{key:"drawRegions",value:function(){var e=this;this.regions={},this.wavesurfer.on("region-created",(function(r){e.regions[r.id]=r,e.drawer.wrapper&&e.renderRegions()})),this.wavesurfer.on("region-updated",(function(r){e.regions[r.id]=r,e.drawer.wrapper&&e.renderRegions()})),this.wavesurfer.on("region-removed",(function(r){delete e.regions[r.id],e.drawer.wrapper&&e.renderRegions()}))}},{key:"renderRegions",value:function(){var e,r=this,i=this.drawer.wrapper.querySelectorAll("region");for(e=0;e<i.length;++e)this.drawer.wrapper.removeChild(i[e]);Object.keys(this.regions).forEach((function(e){var i=r.regions[e],t=r.getWidth()*((i.end-i.start)/r.wavesurfer.getDuration()),n=r.getWidth()*(i.start/r.wavesurfer.getDuration()),o=r.util.style(document.createElement("region"),{height:"inherit",backgroundColor:i.color,width:t+"px",left:n+"px",display:"block",position:"absolute"});o.classList.add(e),r.drawer.wrapper.appendChild(o)}))}},{key:"createElements",value:function(){this.drawer.createElements(),this.params.showOverview&&(this.overviewRegion=this.util.withOrientation(this.drawer.wrapper.appendChild(document.createElement("overview")),this.wavesurfer.params.vertical),this.util.style(this.overviewRegion,{top:0,bottom:0,width:"0px",display:"block",position:"absolute",cursor:"move",border:this.params.overviewBorderSize+"px solid "+this.params.overviewBorderColor,zIndex:2,opacity:this.params.overviewOpacity}))}},{key:"bindWavesurferEvents",value:function(){window.addEventListener("resize",this._onResize,!0),window.addEventListener("orientationchange",this._onResize,!0),this.wavesurfer.on("audioprocess",this._onAudioprocess),this.wavesurfer.on("seek",this._onSeek),this.wavesurfer.on("loading",this._onLoading),this.params.showOverview&&(this.wavesurfer.on("scroll",this._onScroll),this.wavesurfer.drawer.wrapper.addEventListener("mouseover",this._onMouseover))}},{key:"bindMinimapEvents",value:function(){var e=this,r={clientX:0,clientY:0},i=0,t=!0;this.params.interact&&(this.drawer.wrapper.addEventListener("click",(function(r){e.fireEvent("click",r,e.drawer.handleEvent(r))})),this.on("click",(function(r,i){t?(e.drawer.progress(i),e.wavesurfer.seekAndCenter(i)):t=!0}))),this.params.showOverview&&(this.overviewRegion.domElement.addEventListener("mousedown",(function(t){var n=e.util.withOrientation(t,e.wavesurfer.params.vertical);e.draggingOverview=!0,i=n.layerX,r.clientX=n.clientX,r.clientY=n.clientY})),this.drawer.wrapper.addEventListener("mousemove",(function(r){if(e.draggingOverview){var t=e.util.withOrientation(r,e.wavesurfer.params.vertical);e.moveOverviewRegion(t.clientX-e.drawer.container.getBoundingClientRect().left-i)}})),this.drawer.wrapper.addEventListener("mouseup",(function(i){var n=e.util.withOrientation(i,e.wavesurfer.params.vertical);r.clientX-n.clientX==0&&r.clientX-n.clientX==0?(t=!0,e.draggingOverview=!1):e.draggingOverview&&(t=!1,e.draggingOverview=!1)})))}},{key:"render",value:function(){var e=this.drawer.getWidth(),r=this.wavesurfer.backend.getPeaks(e,0,e);this.drawer.drawPeaks(r,e,0,e),this.drawer.progress(this.wavesurfer.backend.getPlayedPercents()),this.params.showOverview&&(this.ratio=this.wavesurfer.drawer.width/this.drawer.width,this.waveShowedWidth=this.wavesurfer.drawer.width/this.ratio,this.waveWidth=this.wavesurfer.drawer.width,this.overviewWidth=this.drawer.container.offsetWidth/this.ratio,this.overviewPosition=0,this.moveOverviewRegion(this.wavesurfer.drawer.wrapper.scrollLeft/this.ratio),this.util.style(this.overviewRegion,{width:this.overviewWidth+"px"}))}},{key:"moveOverviewRegion",value:function(e){e<0?this.overviewPosition=0:e+this.overviewWidth<this.drawer.container.offsetWidth?this.overviewPosition=e:this.overviewPosition=this.drawer.container.offsetWidth-this.overviewWidth,this.util.style(this.overviewRegion,{left:this.overviewPosition+"px"}),this.draggingOverview&&(this.wavesurfer.drawer.wrapper.scrollLeft=this.overviewPosition*this.ratio)}},{key:"getWidth",value:function(){return this.drawer.width/this.params.pixelRatio}}])&&t(r.prototype,i),n&&t(r,n),Object.defineProperty(r,"prototype",{writable:!1}),e}();r.default=n,e.exports=r.default}},r={};var i=function i(t){var n=r[t];if(void 0!==n)return n.exports;var o=r[t]={exports:{}};return e[t](o,o.exports,i),o.exports}(521);return i})()));
//# sourceMappingURL=wavesurfer.minimap.min.js.map