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14 lines
557 B
JavaScript
14 lines
557 B
JavaScript
function setBackgroundBlur() {
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const scriptElement = document.currentScript;
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const targetId = scriptElement && scriptElement.getAttribute("data-target-id") ? scriptElement.getAttribute("data-target-id")
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: (console.error("data-target-id is null"), null);
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window.addEventListener("scroll", () => {
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const scroll = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
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const backgroundBlur = document.getElementById(targetId);
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backgroundBlur.style.opacity = scroll / 300;
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});
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}
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setBackgroundBlur();
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