mirror of https://github.com/docker/docs.git
21 lines
779 B
JavaScript
21 lines
779 B
JavaScript
// return 'light' or 'dark' depending on localStorage (pref) or system setting
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function getThemePreference() {
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const theme = localStorage.getItem("theme-preference");
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if (theme) return theme;
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else
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return window.matchMedia("(prefers-color-scheme: dark)").matches
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? "dark"
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: "light";
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}
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// update root class based on os setting or localstorage
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const preference = getThemePreference();
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document.firstElementChild.className = preference === "dark" ? "dark" : "light";
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localStorage.setItem("theme-preference", preference);
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// set innertext for the theme switch button
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// window.addEventListener("DOMContentLoaded", () => {
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// const themeSwitchButton = document.querySelector("#theme-switch");
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// themeSwitchButton.textContent = `${preference}_mode`;
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// });
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