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/* eslint-env browser */
import {stitchArrays} from '../../shared-util/sugar.js';
import {cssProp} from '../client-util.js';
export const info = {
id: 'lyricsSwitcherInfo',
entries: null,
switchLinks: null,
currentLinks: null,
};
export function getPageReferences() {
const content = document.getElementById('content');
if (!content) return;
const switcher = content.querySelector('.lyrics-switcher');
if (!switcher) return;
info.entries =
Array.from(content.querySelectorAll('.lyrics-entry'));
info.currentLinks =
Array.from(switcher.querySelectorAll('a.current'));
info.switchLinks =
Array.from(switcher.querySelectorAll('a:not(.current)'));
}
export function addPageListeners() {
if (!info.switchLinks) return;
for (const {switchLink, entry} of stitchArrays({
switchLink: info.switchLinks,
entry: info.entries,
})) {
switchLink.addEventListener('click', domEvent => {
domEvent.preventDefault();
showLyricsEntry(entry);
});
}
}
function showLyricsEntry(entry) {
const entryToShow = entry;
stitchArrays({
entry: info.entries,
currentLink: info.currentLinks,
switchLink: info.switchLinks,
}).forEach(({
entry,
currentLink,
switchLink,
}) => {
if (entry === entryToShow) {
cssProp(entry, 'display', null);
cssProp(currentLink, 'display', null);
cssProp(switchLink, 'display', 'none');
} else {
cssProp(entry, 'display', 'none');
cssProp(currentLink, 'display', 'none');
cssProp(switchLink, 'display', null);
}
});
}
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