awv3/core/helpers.js

⚡ AWV3 embedded CAD

export function url(param) {
    var sPageURL = window.location.search.substring(1), sURLVariables = sPageURL.split('&');
    for (var i = 0; i < sURLVariables.length; i++) {
        var sParameterName = sURLVariables[i].split('=');
        if (sParameterName[0] == param) {
            return sParameterName[1];
        }
    }
}

export function queryDom(item) {
    if (typeof item === 'string' || item instanceof String) item = document.querySelector(item);
    return item;
}

export function setPrefixedValue(elm, prop, value, fallback) {
    var prefixes = ['-moz-', '-webkit-', '-o-', '-ms-', '-khtml-'], i, v, starting;

    // Clear
    elm.style[prop] = '';
    starting = elm.style[prop];

    // Try raw first
    try {
        elm.style[prop] = value;
        if (elm.style[prop] !== starting) return;
    } catch (e) {
    }

    // Try prefixes
    for (i = 0; i < prefixes.length; ++i) {
        v = prefixes[i] + value;
        try {
            elm.style[prop] = v;
            if (elm.style[prop] !== starting) return;
        } catch (e2) {
        }
    }

    elm.style[prop] = fallback;
}

export class Performance {
    constructor() {
        this.stamp = undefined;
        this.total = undefined;
    }

    begin() {
        this.stamp = performance.now();
        return this;
    }

    end() {
        this.stamp = performance.now() - this.stamp;
        if (!this.total || this.stamp > this.total) this.total = this.stamp;
        return this;
    }

    printCurrent() {
        console.log(this.stamp);
        return this;
    }

    printTotal() {
        console.log(this.total);
        return this;
    }

    clear() {
        this.total = undefined;
        return this;
    }
}

//absolute timestamp with high relative resolution
export var Timestamp = (function() {
    var startPerfo = performance.now();
    var startTime = Date.now();

    function padString(str, pad) {
        str = str.toString();
        return String(pad + str).slice(-pad.length);
    }

    return {
        get: function() {
            var diffPerfo = performance.now() - startPerfo;
            var absTime = startTime + diffPerfo;
            var minutes = Math.trunc(absTime / 60000) % 60;
            var seconds = Math.trunc(absTime / 1000) % 60;
            var micro = Math.trunc(absTime * 1000) % 1000000;
            var str = padString(minutes, '00') + ':' + padString(seconds, '00') + '.' + padString(micro, '000000');
            return str;
        }
    };
})();