Method constructor

docs/app/js/sanddance-app.js:10950–10977

(props)

const { Table  } = _vegaDeckGl.controls;
class Tooltip {
    constructor(props){
        const renderProps = {
            cssPrefix: props.cssPrefix,
            rows: getRows(props.item, props.options)
        };
        this.element = renderTooltip(renderProps);
        if (this.element) {
            this.element.style.position = "absolute";
            this.child = this.element.firstChild;
            document.body.appendChild(this.element);
            //measure and move as necessary
            let m = outerSize(this.child);
            while(m.height > document.documentElement.clientHeight){
                let tr = this.child.querySelector("tr:last-child");
                if (tr) tr.parentElement.removeChild(tr);
                else break;
                m = outerSize(this.child);
            }
            if (props.position.clientX + m.width >= document.documentElement.clientWidth) this.child.style.right = "0";
            let moveTop = true;
            if (props.position.clientY + m.height >= document.documentElement.clientHeight) {
                if (props.position.clientY - m.height > 0) this.child.style.bottom = "0";
                else moveTop = false;
            }
            if (moveTop) this.element.style.top = `${props.position.clientY}px`;
            this.element.style.left = `${props.position.clientX}px`;
        }
    }
    finalize() {
        if (this.element) document.body.removeChild(this.element);
        this.element = null;