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Fix clamp function

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This commit is contained in:
Rob Garrison 2018-09-18 08:12:34 -05:00
parent f35077afce
commit 15a0521408
1 changed files with 6 additions and 6 deletions
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12
manage/config-dialog.js
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@ -327,7 +327,7 @@ function configDialog(style) {
}
// Clamp input[type=number] to a valid range
function clampValue(value, va) {
function clampValue(value, va, break = false) {
const max = isNumber(va.max) ? va.max : 100;
if (isNumber(va.min) && value < va.min) {
return min;
@ -336,14 +336,14 @@ function configDialog(style) {
return max;
}
// Don't restrict to integer values if step is undefined.
if (!isNumber(va.step)) {
if (!isNumber(va.step) || break) {
return value;
}
const step = va.step || 1;
const precision = (step.toString().split('.')[1] || 0).length + 1;
const inv = 1 / step;
// ECMA-262 only requires a precision of up to 21 significant digits
return Number((Math.floor(inv * value) / inv).toPrecision(precision > 21 ? 21 : precision));
const scale = 10 ** (step.toString().split('.')[1] || '').length;
value = Math.round((value * scale) / (step * scale)) * (step * scale) / scale;
// clamp modified value; skip step check
return clampValue(value, va, true);
}
function updateVarOnInput(event, debounced = false) {