diff options
Diffstat (limited to 'src/static/client.js')
| -rw-r--r-- | src/static/client.js | 415 |
1 files changed, 415 insertions, 0 deletions
diff --git a/src/static/client.js b/src/static/client.js new file mode 100644 index 0000000..c12ff35 --- /dev/null +++ b/src/static/client.js @@ -0,0 +1,415 @@ +// This is the JS file that gets loaded on the client! It's only really used for +// the random track feature right now - the idea is we only use it for stuff +// that cannot 8e done at static-site compile time, 8y its fundamentally +// ephemeral nature. +// +// Upd8: As of 04/02/2021, it's now used for info cards too! Nice. + +import { + getColors +} from '../util/colors.js'; + +let albumData, artistData, flashData; +let officialAlbumData, fandomAlbumData, artistNames; + +let ready = false; + +// Localiz8tion nonsense ---------------------------------- + +const language = document.documentElement.getAttribute('lang'); + +let list; +if ( + typeof Intl === 'object' && + typeof Intl.ListFormat === 'function' +) { + const getFormat = type => { + const formatter = new Intl.ListFormat(language, {type}); + return formatter.format.bind(formatter); + }; + + list = { + conjunction: getFormat('conjunction'), + disjunction: getFormat('disjunction'), + unit: getFormat('unit') + }; +} else { + // Not a gr8 mock we've got going here, 8ut it's *mostly* language-free. + // We use the same mock for every list 'cuz we don't have any of the + // necessary CLDR info to appropri8tely distinguish 8etween them. + const arbitraryMock = array => array.join(', '); + + list = { + conjunction: arbitraryMock, + disjunction: arbitraryMock, + unit: arbitraryMock + }; +} + +// Miscellaneous helpers ---------------------------------- + +function rebase(href, rebaseKey = 'rebaseLocalized') { + const relative = (document.documentElement.dataset[rebaseKey] || '.') + '/'; + if (relative) { + return relative + href; + } else { + return href; + } +} + +function pick(array) { + return array[Math.floor(Math.random() * array.length)]; +} + +function cssProp(el, key) { + return getComputedStyle(el).getPropertyValue(key).trim(); +} + +function getRefDirectory(ref) { + return ref.split(':')[1]; +} + +function getAlbum(el) { + const directory = cssProp(el, '--album-directory'); + return albumData.find(album => album.directory === directory); +} + +function getFlash(el) { + const directory = cssProp(el, '--flash-directory'); + return flashData.find(flash => flash.directory === directory); +} + +// TODO: These should pro8a8ly access some shared urlSpec path. We'd need to +// separ8te the tooling around that into common-shared code too. +const getLinkHref = (type, directory) => rebase(`${type}/${directory}`); +const openAlbum = d => rebase(`album/${d}`); +const openTrack = d => rebase(`track/${d}`); +const openArtist = d => rebase(`artist/${d}`); +const openFlash = d => rebase(`flash/${d}`); + +function getTrackListAndIndex() { + const album = getAlbum(document.body); + const directory = cssProp(document.body, '--track-directory'); + if (!directory && !album) return {}; + if (!directory) return {list: album.tracks}; + const trackIndex = album.tracks.findIndex(track => track.directory === directory); + return {list: album.tracks, index: trackIndex}; +} + +function openRandomTrack() { + const { list } = getTrackListAndIndex(); + if (!list) return; + return openTrack(pick(list)); +} + +function getFlashListAndIndex() { + const list = flashData.filter(flash => !flash.act8r8k) + const flash = getFlash(document.body); + if (!flash) return {list}; + const flashIndex = list.indexOf(flash); + return {list, index: flashIndex}; +} + +// TODO: This should also use urlSpec. +function fetchData(type, directory) { + return fetch(rebase(`${type}/${directory}/data.json`, 'rebaseData')) + .then(res => res.json()); +} + +// JS-based links ----------------------------------------- + +for (const a of document.body.querySelectorAll('[data-random]')) { + a.addEventListener('click', evt => { + if (!ready) { + evt.preventDefault(); + return; + } + + setTimeout(() => { + a.href = rebase('js-disabled'); + }); + switch (a.dataset.random) { + case 'album': return a.href = openAlbum(pick(albumData).directory); + case 'album-in-fandom': return a.href = openAlbum(pick(fandomAlbumData).directory); + case 'album-in-official': return a.href = openAlbum(pick(officialAlbumData).directory); + case 'track': return a.href = openTrack(getRefDirectory(pick(albumData.map(a => a.tracks).reduce((a, b) => a.concat(b), [])))); + case 'track-in-album': return a.href = openTrack(getRefDirectory(pick(getAlbum(a).tracks))); + case 'track-in-fandom': return a.href = openTrack(getRefDirectory(pick(fandomAlbumData.reduce((acc, album) => acc.concat(album.tracks), [])))); + case 'track-in-official': return a.href = openTrack(getRefDirectory(pick(officialAlbumData.reduce((acc, album) => acc.concat(album.tracks), [])))); + case 'artist': return a.href = openArtist(pick(artistData).directory); + case 'artist-more-than-one-contrib': return a.href = openArtist(pick(artistData.filter(artist => C.getArtistNumContributions(artist) > 1)).directory); + } + }); +} + +const next = document.getElementById('next-button'); +const previous = document.getElementById('previous-button'); +const random = document.getElementById('random-button'); + +const prependTitle = (el, prepend) => { + const existing = el.getAttribute('title'); + if (existing) { + el.setAttribute('title', prepend + ' ' + existing); + } else { + el.setAttribute('title', prepend); + } +}; + +if (next) prependTitle(next, '(Shift+N)'); +if (previous) prependTitle(previous, '(Shift+P)'); +if (random) prependTitle(random, '(Shift+R)'); + +document.addEventListener('keypress', event => { + if (event.shiftKey) { + if (event.charCode === 'N'.charCodeAt(0)) { + if (next) next.click(); + } else if (event.charCode === 'P'.charCodeAt(0)) { + if (previous) previous.click(); + } else if (event.charCode === 'R'.charCodeAt(0)) { + if (random && ready) random.click(); + } + } +}); + +for (const reveal of document.querySelectorAll('.reveal')) { + reveal.addEventListener('click', event => { + if (!reveal.classList.contains('revealed')) { + reveal.classList.add('revealed'); + event.preventDefault(); + event.stopPropagation(); + } + }); +} + +const elements1 = document.getElementsByClassName('js-hide-once-data'); +const elements2 = document.getElementsByClassName('js-show-once-data'); + +for (const element of elements1) element.style.display = 'block'; + +fetch(rebase('data.json', 'rebaseShared')).then(data => data.json()).then(data => { + albumData = data.albumData; + artistData = data.artistData; + flashData = data.flashData; + + officialAlbumData = albumData.filter(album => album.groups.includes('group:official')); + fandomAlbumData = albumData.filter(album => !album.groups.includes('group:official')); + artistNames = artistData.filter(artist => !artist.alias).map(artist => artist.name); + + for (const element of elements1) element.style.display = 'none'; + for (const element of elements2) element.style.display = 'block'; + + ready = true; +}); + +// Data & info card --------------------------------------- + +const NORMAL_HOVER_INFO_DELAY = 750; +const FAST_HOVER_INFO_DELAY = 250; +const END_FAST_HOVER_DELAY = 500; +const HIDE_HOVER_DELAY = 250; + +let fastHover = false; +let endFastHoverTimeout = null; + +function colorLink(a, color) { + if (color) { + const { primary, dim } = getColors(color); + a.style.setProperty('--primary-color', primary); + a.style.setProperty('--dim-color', dim); + } +} + +function link(a, type, {name, directory, color}) { + colorLink(a, color); + a.innerText = name + a.href = getLinkHref(type, directory); +} + +function joinElements(type, elements) { + // We can't use the Intl APIs with elements, 8ecuase it only oper8tes on + // strings. So instead, we'll pass the element's outer HTML's (which means + // the entire HTML of that element). + // + // That does mean this function returns a string, so always 8e sure to + // set innerHTML when using it (not appendChild). + + return list[type](elements.map(el => el.outerHTML)); +} + +const infoCard = (() => { + const container = document.getElementById('info-card-container'); + + let cancelShow = false; + let hideTimeout = null; + let showing = false; + + container.addEventListener('mouseenter', cancelHide); + container.addEventListener('mouseleave', readyHide); + + function show(type, target) { + cancelShow = false; + + fetchData(type, target.dataset[type]).then(data => { + // Manual DOM 'cuz we're laaaazy. + + if (cancelShow) { + return; + } + + showing = true; + + const rect = target.getBoundingClientRect(); + + container.style.setProperty('--primary-color', data.color); + + container.style.top = window.scrollY + rect.bottom + 'px'; + container.style.left = window.scrollX + rect.left + 'px'; + + // Use a short timeout to let a currently hidden (or not yet shown) + // info card teleport to the position set a8ove. (If it's currently + // shown, it'll transition to that position.) + setTimeout(() => { + container.classList.remove('hide'); + container.classList.add('show'); + }, 50); + + // 8asic details. + + const nameLink = container.querySelector('.info-card-name a'); + link(nameLink, 'track', data); + + const albumLink = container.querySelector('.info-card-album a'); + link(albumLink, 'album', data.album); + + const artistSpan = container.querySelector('.info-card-artists span'); + artistSpan.innerHTML = joinElements('conjunction', data.artists.map(({ artist }) => { + const a = document.createElement('a'); + a.href = getLinkHref('artist', artist.directory); + a.innerText = artist.name; + return a; + })); + + const coverArtistParagraph = container.querySelector('.info-card-cover-artists'); + const coverArtistSpan = coverArtistParagraph.querySelector('span'); + if (data.coverArtists.length) { + coverArtistParagraph.style.display = 'block'; + coverArtistSpan.innerHTML = joinElements('conjunction', data.coverArtists.map(({ artist }) => { + const a = document.createElement('a'); + a.href = getLinkHref('artist', artist.directory); + a.innerText = artist.name; + return a; + })); + } else { + coverArtistParagraph.style.display = 'none'; + } + + // Cover art. + + const [ containerNoReveal, containerReveal ] = [ + container.querySelector('.info-card-art-container.no-reveal'), + container.querySelector('.info-card-art-container.reveal') + ]; + + const [ containerShow, containerHide ] = (data.cover.warnings.length + ? [containerReveal, containerNoReveal] + : [containerNoReveal, containerReveal]); + + containerHide.style.display = 'none'; + containerShow.style.display = 'block'; + + const img = containerShow.querySelector('.info-card-art'); + img.src = rebase(data.cover.paths.small, 'rebaseMedia'); + + const imgLink = containerShow.querySelector('a'); + colorLink(imgLink, data.color); + imgLink.href = rebase(data.cover.paths.original, 'rebaseMedia'); + + if (containerShow === containerReveal) { + const cw = containerShow.querySelector('.info-card-art-warnings'); + cw.innerText = list.unit(data.cover.warnings); + + const reveal = containerShow.querySelector('.reveal'); + reveal.classList.remove('revealed'); + } + }); + } + + function hide() { + container.classList.remove('show'); + container.classList.add('hide'); + cancelShow = true; + showing = false; + } + + function readyHide() { + if (!hideTimeout && showing) { + hideTimeout = setTimeout(hide, HIDE_HOVER_DELAY); + } + } + + function cancelHide() { + if (hideTimeout) { + clearTimeout(hideTimeout); + hideTimeout = null; + } + } + + return { + show, + hide, + readyHide, + cancelHide + }; +})(); + +function makeInfoCardLinkHandlers(type) { + let hoverTimeout = null; + + return { + mouseenter(evt) { + hoverTimeout = setTimeout(() => { + fastHover = true; + infoCard.show(type, evt.target); + }, fastHover ? FAST_HOVER_INFO_DELAY : NORMAL_HOVER_INFO_DELAY); + + clearTimeout(endFastHoverTimeout); + endFastHoverTimeout = null; + + infoCard.cancelHide(); + }, + + mouseleave(evt) { + clearTimeout(hoverTimeout); + + if (fastHover && !endFastHoverTimeout) { + endFastHoverTimeout = setTimeout(() => { + endFastHoverTimeout = null; + fastHover = false; + }, END_FAST_HOVER_DELAY); + } + + infoCard.readyHide(); + } + }; +} + +const infoCardLinkHandlers = { + track: makeInfoCardLinkHandlers('track') +}; + +function addInfoCardLinkHandlers(type) { + for (const a of document.querySelectorAll(`a[data-${type}]`)) { + for (const [ eventName, handler ] of Object.entries(infoCardLinkHandlers[type])) { + a.addEventListener(eventName, handler); + } + } +} + +// Info cards are disa8led for now since they aren't quite ready for release, +// 8ut you can try 'em out 8y setting this localStorage flag! +// +// localStorage.tryInfoCards = true; +// +if (localStorage.tryInfoCards) { + addInfoCardLinkHandlers('track'); +} |