66 lines
1.9 KiB
JavaScript
66 lines
1.9 KiB
JavaScript
(() => {
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/* DOM */
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const ascii = document.getElementById('pref-ascii');
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const force = document.getElementById('pref-force');
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const themeRadios = document.getElementsByName('pref-theme');
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const bodyClass = document.body.classList;
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/* localStorage management */
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const lsn = "~ddb:"; // localStorage namespace
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const getPref = (pref) => localStorage.getItem(lsn + pref);
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const setPref = (pref, value) => localStorage.setItem(lsn + pref, value);
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const getPrefs = () => ({
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prefASCII: getPref('ascii') === 'true',
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prefForce: getPref('force') === 'true',
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prefTheme: getPref('theme') || 'dark',
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});
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/* Update the state of the document based on client preferences. */
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const renderPreferences = () => {
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const { prefASCII, prefForce, prefTheme } = getPrefs();
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if(prefASCII) {
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bodyClass.add('ascii');
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ascii.checked = "checked";
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}
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if(prefForce) {
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bodyClass.add(prefTheme);
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force.checked = "checked";
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}
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themeRadios.forEach(radio => {
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if(radio.value === prefTheme) {
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radio.checked = true;
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}
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});
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};
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renderPreferences();
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/* ASCII aesthetic intensifies */
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ascii.onchange = (evt) => {
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const { prefASCII } = getPrefs();
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bodyClass.toggle('ascii');
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setPref('ascii', (!prefASCII).toString());
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};
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/* Manage theme forcing behavior */
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const themes = Array.from(themeRadios).map(radio => radio.value);
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force.onchange = () => {
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const { prefForce, prefTheme } = getPrefs();
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const nextForce = !prefForce;
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themes.forEach(theme => bodyClass.remove(theme));
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if (nextForce) {
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bodyClass.add(prefTheme);
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}
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setPref('force', nextForce.toString())
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};
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/* Manage theme selection */
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themeRadios.forEach(radio => radio.onchange = () => {
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const { prefForce } = getPrefs();
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setPref('theme', radio.value);
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if(prefForce) {
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themes.forEach(theme => bodyClass.remove(theme));
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bodyClass.add(radio.value);
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}
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});
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})()
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