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HTMLProgressElement-impl.js
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HTMLProgressElement-impl.js
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"use strict";
const HTMLElementImpl = require("./HTMLElement-impl").implementation;
const { getLabelsForLabelable } = require("../helpers/form-controls");
const { parseFloatingPointNumber } = require("../helpers/strings");
class HTMLProgressElementImpl extends HTMLElementImpl {
constructor(globalObject, args, privateData) {
super(globalObject, args, privateData);
this._labels = null;
}
get _isDeterminate() {
return this.hasAttributeNS(null, "value");
}
// https://html.spec.whatwg.org/multipage/form-elements.html#concept-progress-value
get _value() {
const valueAttr = this.getAttributeNS(null, "value");
const parsedValue = parseFloatingPointNumber(valueAttr);
if (parsedValue !== null && parsedValue > 0) {
return parsedValue;
}
return 0;
}
// https://html.spec.whatwg.org/multipage/form-elements.html#concept-progress-current-value
get _currentValue() {
const value = this._value;
return value > this.max ? this.max : value;
}
get value() {
if (this._isDeterminate) {
return this._currentValue;
}
return 0;
}
set value(value) {
this.setAttributeNS(null, "value", value);
}
get max() {
const max = this.getAttributeNS(null, "max");
if (max !== null) {
const parsedMax = parseFloatingPointNumber(max);
if (parsedMax !== null && parsedMax > 0) {
return parsedMax;
}
}
return 1.0;
}
set max(value) {
if (value > 0) {
this.setAttributeNS(null, "max", value);
}
}
get position() {
if (!this._isDeterminate) {
return -1;
}
return this._currentValue / this.max;
}
get labels() {
return getLabelsForLabelable(this);
}
}
module.exports = {
implementation: HTMLProgressElementImpl
};