19 lines
443 B
JavaScript
19 lines
443 B
JavaScript
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const totalMessageHeight = (total, element) => {
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return total + element.scrollHeight;
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};
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export const calculateScrollTop = (
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conversationPanelHeight,
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parentHeight,
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relevantMessages
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) => {
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// add up scrollHeight of a `relevantMessages`
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let combinedMessageScrollHeight = [...relevantMessages].reduce(
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totalMessageHeight,
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0
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);
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return (
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conversationPanelHeight - combinedMessageScrollHeight - parentHeight / 2
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);
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};
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