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ep-yt-queue.js
510 lines
| 1 | /** |
| 2 | * EmbedPress — YouTube Playlist (Queue + Theatre) |
| 3 | * |
| 4 | * Wires up the .ep-yt-playlist shells emitted by |
| 5 | * EmbedPress\Providers\TemplateLayouts\YoutubeLayout (queue + theatre). |
| 6 | * Per-layout selectors differ (queue uses .ep-yt-queue__*, theatre uses |
| 7 | * .ep-yt-theatre__*) but the interaction model is the same: |
| 8 | * - click-to-swap: clicking an item/card swaps the iframe src to that vid, |
| 9 | * updates the active highlight and the "N / M" position counter |
| 10 | * - infinite scroll: when scrolled near the end of the list/strip, |
| 11 | * fetches the next page of items via WP REST and appends them |
| 12 | * - loop: when ended (postMessage from YT iframe), advance to next or |
| 13 | * restart from 1 if loop is on |
| 14 | * - shuffle: randomize playback order; toggling off restores natural order |
| 15 | * - theatre extras: prev/next arrow buttons scroll the card strip |
| 16 | * |
| 17 | * No framework dependency — vanilla DOM. Safe to enqueue multiple times; |
| 18 | * the per-instance `init` guard prevents double-binding. |
| 19 | */ |
| 20 | (function () { |
| 21 | 'use strict'; |
| 22 | |
| 23 | var ROOT_SELECTOR = '.ep-yt-playlist'; |
| 24 | var INFINITE_SCROLL_PX = 120; |
| 25 | var INIT_FLAG = 'epYtPlaylistInit'; |
| 26 | |
| 27 | // Per-layout selector tables — keep markup contracts in one place. |
| 28 | // New Pro layouts plug in here without any other JS change. |
| 29 | var SELECTORS = { |
| 30 | queue: { |
| 31 | iframe: '.ep-yt-queue__iframe', |
| 32 | list: '.ep-yt-queue__items', |
| 33 | item: '.ep-yt-queue__item', |
| 34 | activeItem: '.ep-yt-queue__item.is-active', |
| 35 | loader: '.ep-yt-queue__loader', |
| 36 | loopBtn: '.ep-yt-queue__loop', |
| 37 | shuffleBtn: '.ep-yt-queue__shuffle', |
| 38 | posCurrent: '.ep-yt-queue__position-current', |
| 39 | scrollAxis: 'y' |
| 40 | }, |
| 41 | theatre: { |
| 42 | iframe: '.ep-yt-theatre__iframe', |
| 43 | list: '.ep-yt-theatre__strip', |
| 44 | item: '.ep-yt-theatre__card', |
| 45 | activeItem: '.ep-yt-theatre__card.is-active', |
| 46 | loader: '.ep-yt-theatre__loader', |
| 47 | loopBtn: '.ep-yt-theatre__loop', |
| 48 | shuffleBtn: '.ep-yt-theatre__shuffle', |
| 49 | posCurrent: '.ep-yt-theatre__position-current', |
| 50 | navPrev: '.ep-yt-theatre__nav--prev', |
| 51 | navNext: '.ep-yt-theatre__nav--next', |
| 52 | scrollAxis: 'x' |
| 53 | }, |
| 54 | // Library: no inline player. Clicking a card opens the modal. |
| 55 | library: { |
| 56 | iframe: '.ep-yt-library__modal-iframe', |
| 57 | list: '.ep-yt-library__grid', |
| 58 | item: '.ep-yt-library__card', |
| 59 | activeItem: '.ep-yt-library__card.is-active', |
| 60 | loader: '.ep-yt-library__loader', |
| 61 | modal: '.ep-yt-library__modal', |
| 62 | modalClose: '.ep-yt-library__modal-close', |
| 63 | posCurrent: '.ep-yt-library__position-current', |
| 64 | scrollAxis: 'y' |
| 65 | }, |
| 66 | spotlight: { |
| 67 | iframe: '.ep-yt-spotlight__iframe', |
| 68 | list: '.ep-yt-spotlight__rail', |
| 69 | item: '.ep-yt-spotlight__rail-card', |
| 70 | activeItem: '.ep-yt-spotlight__rail-card.is-active', |
| 71 | loader: '.ep-yt-spotlight__loader', |
| 72 | loopBtn: '.ep-yt-spotlight__loop', |
| 73 | shuffleBtn: '.ep-yt-spotlight__shuffle', |
| 74 | posCurrent: '.ep-yt-spotlight__position-current', |
| 75 | heroTitle: '.ep-yt-spotlight__hero-title', |
| 76 | heroDesc: '.ep-yt-spotlight__hero-desc', |
| 77 | scrollAxis: 'y' |
| 78 | }, |
| 79 | cinema: { |
| 80 | iframe: '.ep-yt-cinema__iframe', |
| 81 | list: '.ep-yt-cinema__items', |
| 82 | item: '.ep-yt-cinema__item', |
| 83 | activeItem: '.ep-yt-cinema__item.is-active', |
| 84 | loader: '.ep-yt-cinema__loader', |
| 85 | loopBtn: '.ep-yt-cinema__loop', |
| 86 | shuffleBtn: '.ep-yt-cinema__shuffle', |
| 87 | posCurrent: '.ep-yt-cinema__position-current', |
| 88 | playPrev: '.ep-yt-cinema__prev', |
| 89 | playNext: '.ep-yt-cinema__next', |
| 90 | overlayOpen: '.ep-yt-cinema__open-queue', |
| 91 | overlayClose: '.ep-yt-cinema__close-queue', |
| 92 | overlay: '.ep-yt-cinema__overlay', |
| 93 | scrollAxis: 'y' |
| 94 | }, |
| 95 | magazine: { |
| 96 | iframe: '.ep-yt-magazine__iframe', |
| 97 | list: '.ep-yt-magazine__rail', |
| 98 | item: '.ep-yt-magazine__rail-item', |
| 99 | activeItem: '.ep-yt-magazine__rail-item.is-active', |
| 100 | loader: '.ep-yt-magazine__loader', |
| 101 | loopBtn: '.ep-yt-magazine__loop', |
| 102 | shuffleBtn: '.ep-yt-magazine__shuffle', |
| 103 | posCurrent: '.ep-yt-magazine__position-current', |
| 104 | heroTitle: '.ep-yt-magazine__hero-title', |
| 105 | heroDesc: '.ep-yt-magazine__hero-desc', |
| 106 | readMore: '.ep-yt-magazine__readmore', |
| 107 | scrollAxis: 'y' |
| 108 | } |
| 109 | }; |
| 110 | |
| 111 | function ready(fn) { |
| 112 | if (document.readyState !== 'loading') fn(); |
| 113 | else document.addEventListener('DOMContentLoaded', fn); |
| 114 | } |
| 115 | function $$(root, sel) { return Array.prototype.slice.call(root.querySelectorAll(sel)); } |
| 116 | function $(root, sel) { return root.querySelector(sel); } |
| 117 | |
| 118 | function getLayout(root) { |
| 119 | var l = root.getAttribute('data-layout') || 'queue'; |
| 120 | return SELECTORS[l] ? l : 'queue'; |
| 121 | } |
| 122 | |
| 123 | function swapVideoId(iframe, vid) { |
| 124 | if (!iframe || !vid) return; |
| 125 | try { |
| 126 | var src = iframe.src; |
| 127 | var next = src.replace(/(\/embed\/)([^?&"'>]+)(.*)?/, '$1' + vid + '$3'); |
| 128 | if (/[?&]autoplay=0/.test(next)) { |
| 129 | next = next.replace(/([?&])autoplay=0/, '$1autoplay=1'); |
| 130 | } else if (next.indexOf('autoplay=') === -1) { |
| 131 | next += (next.indexOf('?') === -1 ? '?' : '&') + 'autoplay=1'; |
| 132 | } |
| 133 | iframe.src = next; |
| 134 | } catch (err) { /* ignore */ } |
| 135 | } |
| 136 | |
| 137 | function setActive(root, sel, item) { |
| 138 | $$(root, sel.activeItem).forEach(function (el) { el.classList.remove('is-active'); }); |
| 139 | if (item) { |
| 140 | item.classList.add('is-active'); |
| 141 | var list = $(root, sel.list); |
| 142 | if (list && typeof item.scrollIntoView === 'function') { |
| 143 | var listRect = list.getBoundingClientRect(); |
| 144 | var itemRect = item.getBoundingClientRect(); |
| 145 | var off = sel.scrollAxis === 'x' |
| 146 | ? (itemRect.left < listRect.left || itemRect.right > listRect.right) |
| 147 | : (itemRect.top < listRect.top || itemRect.bottom > listRect.bottom); |
| 148 | if (off) { |
| 149 | item.scrollIntoView({ block: 'nearest', inline: 'nearest', behavior: 'smooth' }); |
| 150 | } |
| 151 | } |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | function updateCounter(root, sel) { |
| 156 | var current = $(root, sel.posCurrent); |
| 157 | var active = $(root, sel.activeItem); |
| 158 | if (current && active) { |
| 159 | current.textContent = active.getAttribute('data-index') || ''; |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | function playByIndex(root, sel, index, state) { |
| 164 | var items = $$(root, sel.item); |
| 165 | if (!items.length) return; |
| 166 | if (index >= items.length) { |
| 167 | if (state.loop) index = 0; |
| 168 | else return; |
| 169 | } |
| 170 | if (index < 0) index = 0; |
| 171 | var item = items[index]; |
| 172 | var iframe = $(root, sel.iframe); |
| 173 | var vid = item.getAttribute('data-vid'); |
| 174 | if (!vid || !iframe) return; |
| 175 | swapVideoId(iframe, vid); |
| 176 | setActive(root, sel, item); |
| 177 | updateCounter(root, sel); |
| 178 | } |
| 179 | |
| 180 | function visualIndex(root, sel, item) { |
| 181 | var items = $$(root, sel.item); |
| 182 | return items.indexOf(item); |
| 183 | } |
| 184 | |
| 185 | function attachClickToSwap(root, sel, state) { |
| 186 | var list = $(root, sel.list); |
| 187 | if (!list) return; |
| 188 | list.addEventListener('click', function (event) { |
| 189 | var item = event.target.closest(sel.item); |
| 190 | if (!item || !list.contains(item)) return; |
| 191 | event.preventDefault(); |
| 192 | state.cursor = visualIndex(root, sel, item); |
| 193 | playByIndex(root, sel, state.cursor, state); |
| 194 | // Layouts that have a "hero" area (Spotlight, Magazine) promote |
| 195 | // the clicked item's title + description into that area. |
| 196 | if (sel.heroTitle || sel.heroDesc) { |
| 197 | var titleEl = sel.heroTitle ? $(root, sel.heroTitle) : null; |
| 198 | var descEl = sel.heroDesc ? $(root, sel.heroDesc) : null; |
| 199 | if (titleEl) { |
| 200 | var t = item.getAttribute('data-title') || ''; |
| 201 | if (t) titleEl.textContent = t; |
| 202 | } |
| 203 | if (descEl) { |
| 204 | var d = item.getAttribute('data-description') || ''; |
| 205 | if (d !== '') descEl.textContent = d; |
| 206 | } |
| 207 | } |
| 208 | // Library: open the modal player on click. |
| 209 | if (sel.modal && state.layout === 'library') { |
| 210 | var modal = $(root, sel.modal); |
| 211 | if (modal) modal.hidden = false; |
| 212 | } |
| 213 | }); |
| 214 | } |
| 215 | |
| 216 | // Cinema overlay queue + Library modal close wiring. |
| 217 | function attachLayoutExtras(root, sel, state) { |
| 218 | if (state.layout === 'cinema') { |
| 219 | var openBtn = $(root, sel.overlayOpen); |
| 220 | var closeBtn = $(root, sel.overlayClose); |
| 221 | var overlay = $(root, sel.overlay); |
| 222 | if (openBtn && overlay) openBtn.addEventListener('click', function () { overlay.classList.add('is-open'); }); |
| 223 | if (closeBtn && overlay) closeBtn.addEventListener('click', function () { overlay.classList.remove('is-open'); }); |
| 224 | } |
| 225 | if (state.layout === 'library') { |
| 226 | var modal = $(root, sel.modal); |
| 227 | var close = $(root, sel.modalClose); |
| 228 | if (close && modal) close.addEventListener('click', function () { modal.hidden = true; }); |
| 229 | if (modal) modal.addEventListener('click', function (event) { |
| 230 | if (event.target === modal) modal.hidden = true; // backdrop click |
| 231 | }); |
| 232 | } |
| 233 | if (state.layout === 'magazine') { |
| 234 | var more = $(root, sel.readMore); |
| 235 | var desc = $(root, sel.heroDesc); |
| 236 | if (more && desc) more.addEventListener('click', function () { |
| 237 | desc.classList.toggle('is-expanded'); |
| 238 | more.textContent = desc.classList.contains('is-expanded') |
| 239 | ? (more.getAttribute('data-collapse-label') || 'Show less') |
| 240 | : (more.getAttribute('data-expand-label') || 'Read more'); |
| 241 | }); |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | function attachLoopShuffle(root, sel, state) { |
| 246 | var loopBtn = $(root, sel.loopBtn); |
| 247 | var shuffleBtn = $(root, sel.shuffleBtn); |
| 248 | if (loopBtn) { |
| 249 | loopBtn.addEventListener('click', function () { |
| 250 | state.loop = !state.loop; |
| 251 | loopBtn.setAttribute('aria-pressed', String(state.loop)); |
| 252 | }); |
| 253 | } |
| 254 | if (shuffleBtn) { |
| 255 | shuffleBtn.addEventListener('click', function () { |
| 256 | state.shuffle = !state.shuffle; |
| 257 | shuffleBtn.setAttribute('aria-pressed', String(state.shuffle)); |
| 258 | if (state.shuffle) shuffleOrder(root, sel, state); |
| 259 | else restoreOrder(root, sel, state); |
| 260 | }); |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | function shuffleOrder(root, sel, state) { |
| 265 | var list = $(root, sel.list); |
| 266 | if (!list) return; |
| 267 | var items = $$(root, sel.item); |
| 268 | if (!state.originalOrder) { |
| 269 | state.originalOrder = items.map(function (i) { return i.getAttribute('data-vid'); }); |
| 270 | } |
| 271 | var shuffled = items.slice(); |
| 272 | for (var i = shuffled.length - 1; i > 0; i--) { |
| 273 | var j = Math.floor(Math.random() * (i + 1)); |
| 274 | var tmp = shuffled[i]; shuffled[i] = shuffled[j]; shuffled[j] = tmp; |
| 275 | } |
| 276 | shuffled.forEach(function (el) { list.appendChild(el); }); |
| 277 | var active = $(root, sel.activeItem); |
| 278 | state.cursor = visualIndex(root, sel, active); |
| 279 | } |
| 280 | |
| 281 | function restoreOrder(root, sel, state) { |
| 282 | if (!state.originalOrder) return; |
| 283 | var list = $(root, sel.list); |
| 284 | if (!list) return; |
| 285 | var byVid = {}; |
| 286 | $$(root, sel.item).forEach(function (el) { |
| 287 | byVid[el.getAttribute('data-vid')] = el; |
| 288 | }); |
| 289 | state.originalOrder.forEach(function (vid) { |
| 290 | if (byVid[vid]) list.appendChild(byVid[vid]); |
| 291 | }); |
| 292 | var active = $(root, sel.activeItem); |
| 293 | state.cursor = visualIndex(root, sel, active); |
| 294 | } |
| 295 | |
| 296 | function attachInfiniteScroll(root, sel, state) { |
| 297 | var list = $(root, sel.list); |
| 298 | if (!list) return; |
| 299 | list.addEventListener('scroll', function () { |
| 300 | if (state.loadingNext || !state.nextPageToken) return; |
| 301 | var remaining = sel.scrollAxis === 'x' |
| 302 | ? list.scrollWidth - list.scrollLeft - list.clientWidth |
| 303 | : list.scrollHeight - list.scrollTop - list.clientHeight; |
| 304 | if (remaining < INFINITE_SCROLL_PX) { |
| 305 | fetchNextPage(root, sel, state); |
| 306 | } |
| 307 | }); |
| 308 | |
| 309 | // Hard cap on initial-fill rounds — protects against pathological |
| 310 | // cases where the container grows along with the strip and the |
| 311 | // "is it scrollable yet?" predicate never flips to false. |
| 312 | var fillRounds = 0; |
| 313 | function fillUntilScrollable() { |
| 314 | if (!state.nextPageToken || state.loadingNext) return; |
| 315 | if (fillRounds >= 3) return; |
| 316 | var room = sel.scrollAxis === 'x' |
| 317 | ? list.scrollWidth <= list.clientWidth + 8 |
| 318 | : list.scrollHeight <= list.clientHeight + 8; |
| 319 | if (room) { |
| 320 | fillRounds++; |
| 321 | fetchNextPage(root, sel, state).then(function () { |
| 322 | setTimeout(fillUntilScrollable, 50); |
| 323 | }); |
| 324 | } |
| 325 | } |
| 326 | setTimeout(fillUntilScrollable, 50); |
| 327 | } |
| 328 | |
| 329 | // Playback prev/next buttons (cinema): step the active video backward / |
| 330 | // forward through the playlist, reusing the same cursor model as auto-loop. |
| 331 | // Distinct from theatre's nav buttons, which scroll the card strip. |
| 332 | function attachPlaybackNavButtons(root, sel, state) { |
| 333 | var prev = sel.playPrev ? $(root, sel.playPrev) : null; |
| 334 | var next = sel.playNext ? $(root, sel.playNext) : null; |
| 335 | function step(delta) { |
| 336 | var items = $$(root, sel.item); |
| 337 | if (!items.length) return; |
| 338 | var active = $(root, sel.activeItem); |
| 339 | state.cursor = active ? visualIndex(root, sel, active) : state.cursor; |
| 340 | var target = state.cursor + delta; |
| 341 | if (target >= items.length) target = state.loop ? 0 : items.length - 1; |
| 342 | if (target < 0) target = state.loop ? items.length - 1 : 0; |
| 343 | state.cursor = target; |
| 344 | playByIndex(root, sel, target, state); |
| 345 | } |
| 346 | if (prev) prev.addEventListener('click', function () { step(-1); }); |
| 347 | if (next) next.addEventListener('click', function () { step(1); }); |
| 348 | } |
| 349 | |
| 350 | function attachTheatreNavButtons(root, sel) { |
| 351 | var prev = $(root, sel.navPrev); |
| 352 | var next = $(root, sel.navNext); |
| 353 | var list = $(root, sel.list); |
| 354 | if (!list) return; |
| 355 | function pageBy(dir) { |
| 356 | list.scrollBy({ left: dir * list.clientWidth * 0.8, behavior: 'smooth' }); |
| 357 | } |
| 358 | if (prev) prev.addEventListener('click', function () { pageBy(-1); }); |
| 359 | if (next) next.addEventListener('click', function () { pageBy(1); }); |
| 360 | } |
| 361 | |
| 362 | function fetchNextPage(root, sel, state) { |
| 363 | if (state.loadingNext || !state.nextPageToken) return Promise.resolve(); |
| 364 | state.loadingNext = true; |
| 365 | var loader = $(root, sel.loader); |
| 366 | if (loader) loader.hidden = false; |
| 367 | |
| 368 | var data = window.embedpressFrontendData || {}; |
| 369 | var restUrl = (data.rest_url || '/wp-json/') + 'embedpress/v1/youtube-playlist-items'; |
| 370 | |
| 371 | var params = new URLSearchParams({ |
| 372 | playlist_id: state.playlistId, |
| 373 | page_token: state.nextPageToken, |
| 374 | page_size: String(state.pageSize), |
| 375 | offset: String($$(root, sel.item).length), |
| 376 | layout: state.layout |
| 377 | }); |
| 378 | |
| 379 | var headers = { 'Accept': 'application/json' }; |
| 380 | if (data.rest_nonce) headers['X-WP-Nonce'] = data.rest_nonce; |
| 381 | |
| 382 | return fetch(restUrl + '?' + params.toString(), { headers: headers, credentials: 'same-origin' }) |
| 383 | .then(function (r) { return r.ok ? r.json() : Promise.reject(r); }) |
| 384 | .then(function (payload) { |
| 385 | if (payload && payload.html) { |
| 386 | var list = $(root, sel.list); |
| 387 | list.insertAdjacentHTML('beforeend', payload.html); |
| 388 | } |
| 389 | state.nextPageToken = payload && payload.next_page_token ? payload.next_page_token : ''; |
| 390 | root.setAttribute('data-next-page-token', state.nextPageToken); |
| 391 | if (state.shuffle) { |
| 392 | shuffleOrder(root, sel, state); |
| 393 | } else { |
| 394 | state.originalOrder = $$(root, sel.item).map(function (i) { |
| 395 | return i.getAttribute('data-vid'); |
| 396 | }); |
| 397 | } |
| 398 | }) |
| 399 | .catch(function () { state.nextPageToken = ''; }) |
| 400 | .finally(function () { |
| 401 | state.loadingNext = false; |
| 402 | if (loader) loader.hidden = true; |
| 403 | }); |
| 404 | } |
| 405 | |
| 406 | function attachEndedListener(root, sel, state) { |
| 407 | var iframe = $(root, sel.iframe); |
| 408 | if (!iframe) return; |
| 409 | try { |
| 410 | iframe.contentWindow.postMessage(JSON.stringify({ |
| 411 | event: 'listening', |
| 412 | id: state.id |
| 413 | }), '*'); |
| 414 | } catch (e) { /* non-fatal */ } |
| 415 | } |
| 416 | |
| 417 | function handleEnded(state) { |
| 418 | var root = state.root; |
| 419 | var sel = SELECTORS[state.layout]; |
| 420 | if (state.shuffle) { |
| 421 | var items = $$(root, sel.item); |
| 422 | if (items.length <= 1) return; |
| 423 | var next = state.cursor; |
| 424 | for (var attempt = 0; attempt < 5; attempt++) { |
| 425 | next = Math.floor(Math.random() * items.length); |
| 426 | if (next !== state.cursor) break; |
| 427 | } |
| 428 | state.cursor = next; |
| 429 | playByIndex(root, sel, next, state); |
| 430 | } else { |
| 431 | state.cursor++; |
| 432 | playByIndex(root, sel, state.cursor, state); |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | function bindGlobalMessageRouter() { |
| 437 | if (window[INIT_FLAG + 'MsgBound']) return; |
| 438 | window[INIT_FLAG + 'MsgBound'] = true; |
| 439 | window.addEventListener('message', function (event) { |
| 440 | if (typeof event.data !== 'string') return; |
| 441 | if (event.origin.indexOf('youtube.com') === -1 && event.origin.indexOf('youtube-nocookie.com') === -1) return; |
| 442 | var data; |
| 443 | try { data = JSON.parse(event.data); } catch (e) { return; } |
| 444 | if (data && data.event === 'onStateChange' && data.info === 0) { |
| 445 | $$(document, ROOT_SELECTOR).forEach(function (root) { |
| 446 | var sel = SELECTORS[getLayout(root)]; |
| 447 | var iframe = $(root, sel.iframe); |
| 448 | if (iframe && iframe.contentWindow === event.source) { |
| 449 | var state = root[INIT_FLAG + 'State']; |
| 450 | if (state) handleEnded(state); |
| 451 | } |
| 452 | }); |
| 453 | } |
| 454 | }); |
| 455 | } |
| 456 | |
| 457 | function initOne(root) { |
| 458 | if (root[INIT_FLAG]) return; |
| 459 | root[INIT_FLAG] = true; |
| 460 | |
| 461 | var layout = getLayout(root); |
| 462 | var sel = SELECTORS[layout]; |
| 463 | var active = $(root, sel.activeItem) || $(root, sel.item); |
| 464 | var state = { |
| 465 | root: root, |
| 466 | layout: layout, |
| 467 | id: 'epyp-' + Math.random().toString(36).slice(2, 9), |
| 468 | playlistId: root.getAttribute('data-playlist-id') || '', |
| 469 | pageSize: parseInt(root.getAttribute('data-pagesize'), 10) || 6, |
| 470 | nextPageToken: root.getAttribute('data-next-page-token') || '', |
| 471 | cursor: active ? visualIndex(root, sel, active) : 0, |
| 472 | loop: false, |
| 473 | shuffle: false, |
| 474 | loadingNext: false, |
| 475 | originalOrder: null |
| 476 | }; |
| 477 | root[INIT_FLAG + 'State'] = state; |
| 478 | |
| 479 | attachClickToSwap(root, sel, state); |
| 480 | attachLoopShuffle(root, sel, state); |
| 481 | attachInfiniteScroll(root, sel, state); |
| 482 | attachEndedListener(root, sel, state); |
| 483 | attachLayoutExtras(root, sel, state); |
| 484 | attachPlaybackNavButtons(root, sel, state); |
| 485 | if (layout === 'theatre') attachTheatreNavButtons(root, sel); |
| 486 | } |
| 487 | |
| 488 | function init() { |
| 489 | bindGlobalMessageRouter(); |
| 490 | $$(document, ROOT_SELECTOR).forEach(initOne); |
| 491 | |
| 492 | if (typeof window.MutationObserver === 'function') { |
| 493 | var obs = new MutationObserver(function (mutations) { |
| 494 | mutations.forEach(function (m) { |
| 495 | Array.prototype.forEach.call(m.addedNodes || [], function (node) { |
| 496 | if (node.nodeType !== 1) return; |
| 497 | if (node.matches && node.matches(ROOT_SELECTOR)) initOne(node); |
| 498 | if (node.querySelectorAll) { |
| 499 | Array.prototype.forEach.call(node.querySelectorAll(ROOT_SELECTOR), initOne); |
| 500 | } |
| 501 | }); |
| 502 | }); |
| 503 | }); |
| 504 | obs.observe(document.body, { childList: true, subtree: true }); |
| 505 | } |
| 506 | } |
| 507 | |
| 508 | ready(init); |
| 509 | })(); |
| 510 |