55 lines
1.4 KiB
JavaScript
55 lines
1.4 KiB
JavaScript
/**
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* Validate a min and max value for a range slider against defined constraints (min, max, step).
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*
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* @param {Array} values Array containing min and max values.
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* @param {number} min Min allowed value for the sliders.
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* @param {number} max Max allowed value for the sliders.
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* @param {number} step Step value for the sliders.
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* @param {boolean} isMin Whether we're currently interacting with the min range slider or not, so we update the correct values.
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* @return {Array} Validated and updated min/max values that fit within the range slider constraints.
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*/
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export const constrainRangeSliderValues = (
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values,
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min,
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max,
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step = 1,
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isMin = false
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) => {
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let minValue = parseInt( values[ 0 ], 10 );
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let maxValue = parseInt( values[ 1 ], 10 );
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if ( ! Number.isFinite( minValue ) ) {
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minValue = min || 0;
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}
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if ( ! Number.isFinite( maxValue ) ) {
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maxValue = max || step;
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}
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if ( Number.isFinite( min ) && min > minValue ) {
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minValue = min;
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}
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if ( Number.isFinite( max ) && max <= minValue ) {
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minValue = max - step;
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}
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if ( Number.isFinite( min ) && min >= maxValue ) {
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maxValue = min + step;
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}
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if ( Number.isFinite( max ) && max < maxValue ) {
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maxValue = max;
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}
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if ( ! isMin && minValue >= maxValue ) {
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minValue = maxValue - step;
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}
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if ( isMin && maxValue <= minValue ) {
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maxValue = minValue + step;
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}
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return [ minValue, maxValue ];
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};
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