// Compute position so menu stays visible and near the mouse.
    const x = Math.min(e.clientX - 10, document.body.clientWidth - menu.clientWidth);
    const y = Math.min(e.clientY - 10, document.body.clientHeight - menu.clientHeight);
    menu.style.left = x + 'px';
    menu.style.top = y + 'px';
    // Set menu links to operate on clicked box.
    setHrefParam('action-source', 'f', box.src);

    panLastX = x;
    panLastY = y;

    // Firefox workaround: get dimensions from parentNode.
    const swidth = svg.clientWidth || svg.parentNode.clientWidth;
    const sheight = svg.clientHeight || svg.parentNode.clientHeight;

    // Convert deltas from screen space to svg space.
    dx *= (svg.viewBox.baseVal.width / swidth);
    dy *= (svg.viewBox.baseVal.height / sheight);

    svg.viewBox.baseVal.x -= dx;

t=this.$el,e=function(t){for(;t=Pt(t);)if("static"!==Ve(t,"position"))return t}(t)||t.parentNode,i=e.offsetHeight,n=e.offsetWidth,r=rt.cover({width:this.width||t.naturalWidth||t.videoWidth||t.clientWidth,height:this.height||t.naturalHeight||t.videoHeight||t.clientHeight},{width:n+(n%2?1:0),height:i+(i%2?1:0)});return!(!r.width||!r.height)&&r},write:function(t){var e=t.height,i=t.width;Ve(this.$el,{height:e,width:i})},events:["resize"]}};var pn,gn={props:{pos:String,offset:null,flip:Boolean,clsPos:String},data...

is,r=this.firstChild;break;case"beforeend":n=this,r=null;break;default:return}var o=u(n,t);n.insertBefore(o,r)},get hidden(){return this.hasAttribute("hidden")},set hidden(e){e?this.setAttribute("hidden",""):this.removeAttribute("hidden")}}),["clientHeight","clientLeft","clientTop","clientWidth","offsetHeight","offsetLeft","offsetTop","offsetWidth","scrollHeight","scrollWidth"].forEach(p),["scrollLeft","scrollTop"].forEach(h),["focus","getBoundingClientRect","getClientRects","scrollIntoView"].fo...

this.modelTrackContainer_.clientHeight);}
const changed=!this.currentDisplayTransform.equals(oldDisplayTransform);const yChanged=this.currentDisplayTransform.panY!==oldDisplayTransform.panY;if(yChanged){this.modelTrackContainer_.scrollTop=this.currentDisplayTransform.panY;}