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35 lines
1.2 KiB
JavaScript
35 lines
1.2 KiB
JavaScript
import getNumber from './get-number';
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import testComputedSize from './computed-size';
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/**
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* Retrieve the computed style for an element, parsed as a float.
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* @param {Element} element Element to get style for.
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* @param {string} style Style property.
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* @param {CSSStyleDeclaration} [styles] Optionally include clean styles to
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* use instead of asking for them again.
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* @return {number} The parsed computed value or zero if that fails because IE
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* will return 'auto' when the element doesn't have margins instead of
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* the computed style.
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*/
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export default function getNumberStyle(
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element, style,
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styles = window.getComputedStyle(element, null),
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) {
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let value = getNumber(styles[style]);
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// Support IE<=11 and W3C spec.
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if (!testComputedSize() && style === 'width') {
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value += getNumber(styles.paddingLeft)
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+ getNumber(styles.paddingRight)
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+ getNumber(styles.borderLeftWidth)
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+ getNumber(styles.borderRightWidth);
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} else if (!testComputedSize() && style === 'height') {
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value += getNumber(styles.paddingTop)
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+ getNumber(styles.paddingBottom)
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+ getNumber(styles.borderTopWidth)
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+ getNumber(styles.borderBottomWidth);
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}
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return value;
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}
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