| 1 | export function getTargetRect(target) {
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| 2 | return target !== window ? target.getBoundingClientRect() : {
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| 3 | top: 0,
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| 4 | bottom: window.innerHeight
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| 5 | };
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| 6 | }
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| 7 | export function getFixedTop(placeholderRect, targetRect, offsetTop) {
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| 8 | if (offsetTop !== undefined && Math.round(targetRect.top) > Math.round(placeholderRect.top) - offsetTop) {
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| 9 | return offsetTop + targetRect.top;
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| 10 | }
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| 11 | return undefined;
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| 12 | }
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| 13 | export function getFixedBottom(placeholderRect, targetRect, offsetBottom) {
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| 14 | if (offsetBottom !== undefined && Math.round(targetRect.bottom) < Math.round(placeholderRect.bottom) + offsetBottom) {
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| 15 | const targetBottomOffset = window.innerHeight - targetRect.bottom;
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| 16 | return offsetBottom + targetBottomOffset;
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| 17 | }
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| 18 | return undefined;
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| 19 | } |
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