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https://github.com/Theodor-Springmann-Stiftung/hamann-ausgabe-core.git
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27 lines
1.0 KiB
JavaScript
27 lines
1.0 KiB
JavaScript
// Script for showing and acting upon the "scroll to top button"
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const scrollFunction = function () {
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button = document.getElementById("ha-scrollbutton");
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if (button !== null) {
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if (document.body.scrollTop > 300 || document.documentElement.scrollTop > 300) {
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// button.style.display = "block";
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button.style.pointerEvents = "auto";
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button.style.opacity = "1";
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} else {
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// button.style.display = "none";
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button.style.pointerEvents = "none";
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button.style.opacity = "0";
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}
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}
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}
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// Scroll button
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if (document.getElementById("ha-scrollbutton") !== null) {
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scrollFunction();
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document.getElementById("ha-scrollbutton").addEventListener("click", () => {
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document.body.scrollTop = 0; // For Safari
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document.documentElement.scrollTop = 0; // For Chrome, Firefox, IE and Opera
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})
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// TODO: workaround, bc window does not recieve scroll events anymore
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setInterval(() => scrollFunction(), 1500);
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}
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