21 lines
842 B
JavaScript
21 lines
842 B
JavaScript
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export const findOffset = (child, parent, { top = 0, left = 0 } = {}, ignorePadding = true) => {
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const result = {
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top: top + child.offsetTop,
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left: left + child.offsetLeft
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}
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if (!ignorePadding && child !== window) {
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const topPaddingStr = window.getComputedStyle(child)['padding-top']
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const topPadding = Number(topPaddingStr.substring(0, topPaddingStr.length - 2))
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const leftPaddingStr = window.getComputedStyle(child)['padding-left']
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const leftPadding = Number(leftPaddingStr.substring(0, leftPaddingStr.length - 2))
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result.top += ignorePadding ? 0 : topPadding
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result.left += ignorePadding ? 0 : leftPadding
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}
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if (child.offsetParent && (parent === window || parent.contains(child.offsetParent))) {
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return findOffset(child.offsetParent, parent, result, false)
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} else {
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return result
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}
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}
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