| 1 | /* html-ppt :: runtime.js |
| 2 | * Keyboard-driven deck runtime. Zero dependencies. |
| 3 | * |
| 4 | * Features: |
| 5 | * ← → / space / PgUp PgDn / Home End navigation |
| 6 | * F fullscreen |
| 7 | * S presenter mode (opens a NEW WINDOW with current/next slide preview + notes + timer) |
| 8 | * The original window stays as audience view, synced via BroadcastChannel. |
| 9 | * Slide previews use CSS transform:scale() at design resolution for pixel-perfect layout. |
| 10 | * N quick notes overlay (bottom drawer) |
| 11 | * O slide overview grid |
| 12 | * T cycle themes (reads data-themes on <html> or <body>) |
| 13 | * A cycle demo animation on current slide |
| 14 | * URL hash #/N deep-link to slide N (1-based) |
| 15 | * Progress bar auto-managed |
| 16 | */ |
| 17 | (function () { |
| 18 | 'use strict'; |
| 19 | |
| 20 | const ANIMS = ['fade-up','fade-down','fade-left','fade-right','rise-in','drop-in', |
| 21 | 'zoom-pop','blur-in','glitch-in','typewriter','neon-glow','shimmer-sweep', |
| 22 | 'gradient-flow','stagger-list','counter-up','path-draw','parallax-tilt', |
| 23 | 'card-flip-3d','cube-rotate-3d','page-turn-3d','perspective-zoom', |
| 24 | 'marquee-scroll','kenburns','confetti-burst','spotlight','morph-shape','ripple-reveal']; |
| 25 | |
| 26 | /* Every class the runtime treats as speaker notes. base.css hides the same |
| 27 | * set from the audience — if you add one here, add it there too. */ |
| 28 | const NOTE_SEL = '.notes, aside.notes, .speaker-notes'; |
| 29 | |
| 30 | function ready(fn){ if(document.readyState!='loading')fn(); else document.addEventListener('DOMContentLoaded',fn);} |
| 31 | |
| 32 | /* ========== Parse URL for preview-only mode ========== |
| 33 | * When loaded as iframe.src = "index.html?preview=3", runtime enters a |
| 34 | * locked single-slide mode: only slide N is visible, no chrome, no keys, |
| 35 | * no hash updates. This is how the presenter window shows pixel-perfect |
| 36 | * previews — by loading the actual deck file in an iframe and telling it |
| 37 | * to display only a specific slide. |
| 38 | */ |
| 39 | function getPreviewIdx() { |
| 40 | const m = /[?&]preview=(\d+)/.exec(location.search || ''); |
| 41 | return m ? parseInt(m[1], 10) - 1 : -1; |
| 42 | } |
| 43 | |
| 44 | /* ========== Design-canvas fit (issue #20) ========== |
| 45 | * Slides are authored against a fixed canvas (1920x1080 by default). The |
| 46 | * canvas is scaled — never reflowed — to fit whatever viewport it lands in, |
| 47 | * so the browser view, the presenter preview, the overview thumbnail and a |
| 48 | * headless PNG render are all the same picture. |
| 49 | * |
| 50 | * Opt out with <body data-fit="fluid">. Override the canvas per deck with |
| 51 | * <div class="deck" data-w="1080" data-h="1440"> (e.g. a 3:4 小红书 post). |
| 52 | */ |
| 53 | function initCanvasFit(deck) { |
| 54 | if (document.body.getAttribute('data-fit') === 'fluid') return; |
| 55 | |
| 56 | const w = parseInt(deck.getAttribute('data-w'), 10) || 1920; |
| 57 | const h = parseInt(deck.getAttribute('data-h'), 10) || 1080; |
| 58 | deck.style.setProperty('--deck-w', w + 'px'); |
| 59 | deck.style.setProperty('--deck-h', h + 'px'); |
| 60 | |
| 61 | function fit() { |
| 62 | const scale = Math.min(window.innerWidth / w, window.innerHeight / h); |
| 63 | deck.style.setProperty('--deck-scale', String(scale)); |
| 64 | } |
| 65 | fit(); |
| 66 | window.addEventListener('resize', fit); |
| 67 | if (window.visualViewport) window.visualViewport.addEventListener('resize', fit); |
| 68 | /* Webfonts can land after first paint; re-fit once they do. */ |
| 69 | if (document.fonts && document.fonts.ready) document.fonts.ready.then(fit).catch(function(){}); |
| 70 | } |
| 71 | |
| 72 | ready(function () { |
| 73 | const deck = document.querySelector('.deck'); |
| 74 | if (!deck) return; |
| 75 | const slides = Array.from(deck.querySelectorAll('.slide')); |
| 76 | if (!slides.length) return; |
| 77 | |
| 78 | initCanvasFit(deck); |
| 79 | |
| 80 | /* ===== custom logo (issue #11) ===== |
| 81 | * Deliberately initialised BEFORE the preview-mode branch below: the |
| 82 | * presenter's "pixel-perfect" preview is the audience view, so it has to |
| 83 | * carry the logo too. A hand-authored <img class="deck-logo"> is left |
| 84 | * exactly where it is — base.css styles both paths identically, so a deck |
| 85 | * can have a logo with runtime.js absent entirely. |
| 86 | */ |
| 87 | const logoEl = (function initLogo(){ |
| 88 | const attr = (n) => document.body.getAttribute(n) || document.documentElement.getAttribute(n); |
| 89 | let el = deck.querySelector(':scope > .deck-logo'); |
| 90 | if (!el) { |
| 91 | const src = attr('data-logo'); |
| 92 | if (!src) return null; |
| 93 | el = document.createElement('img'); |
| 94 | el.className = 'deck-logo'; |
| 95 | el.src = src; |
| 96 | el.alt = attr('data-logo-alt') || ''; |
| 97 | deck.appendChild(el); |
| 98 | } |
| 99 | if (!el.hasAttribute('data-pos')) { |
| 100 | el.setAttribute('data-pos', attr('data-logo-position') || 'top-right'); |
| 101 | } |
| 102 | /* Custom props go on .deck, not on the element: the element inherits |
| 103 | them, and the print rules (which paint the logo per page on |
| 104 | .slide::after) can read them too. An inline --logo-* on a |
| 105 | hand-authored element wins for the element, so mirror it up. */ |
| 106 | const mirror = (attrName, prop) => { |
| 107 | const v = (attrName && attr(attrName)) || el.style.getPropertyValue(prop); |
| 108 | if (v) deck.style.setProperty(prop, v.trim()); |
| 109 | }; |
| 110 | mirror('data-logo-size', '--logo-size'); |
| 111 | mirror('data-logo-opacity', '--logo-opacity'); |
| 112 | mirror(null, '--logo-inset-x'); |
| 113 | mirror(null, '--logo-inset-y'); |
| 114 | |
| 115 | /* Print can't use the element itself — see the @media print note in |
| 116 | base.css. Hand the URL and the corner to the per-page painter. |
| 117 | Use el.src, not getAttribute('src'): a relative url() inside a custom |
| 118 | property is resolved against the stylesheet that *uses* the var() |
| 119 | (assets/base.css), not against the deck, so it must be absolute. */ |
| 120 | const src = el.src; |
| 121 | if (src) { |
| 122 | deck.style.setProperty('--logo-print', 'url("' + src.replace(/["\\]/g, '\\$&') + '")'); |
| 123 | deck.setAttribute('data-logo-print', el.getAttribute('data-pos')); |
| 124 | } |
| 125 | return el; |
| 126 | })(); |
| 127 | |
| 128 | /* Per-slide opt-out: <section class="slide" data-no-logo> — covers and |
| 129 | full-bleed image slides usually carry their own branding. */ |
| 130 | function syncLogo(slide){ |
| 131 | if (!logoEl) return; |
| 132 | logoEl.style.display = (slide && slide.hasAttribute('data-no-logo')) ? 'none' : ''; |
| 133 | } |
| 134 | |
| 135 | const previewOnlyIdx = getPreviewIdx(); |
| 136 | const isPreviewMode = previewOnlyIdx >= 0 && previewOnlyIdx < slides.length; |
| 137 | |
| 138 | /* ===== Preview-only mode: show one slide, hide everything else ===== */ |
| 139 | if (isPreviewMode) { |
| 140 | function showSlide(i) { |
| 141 | slides.forEach((s, j) => { |
| 142 | const active = (j === i); |
| 143 | s.classList.toggle('is-active', active); |
| 144 | s.style.display = active ? '' : 'none'; |
| 145 | if (active) { |
| 146 | s.style.opacity = '1'; |
| 147 | s.style.transform = 'none'; |
| 148 | s.style.pointerEvents = 'auto'; |
| 149 | } |
| 150 | }); |
| 151 | } |
| 152 | showSlide(previewOnlyIdx); |
| 153 | syncLogo(slides[previewOnlyIdx]); |
| 154 | /* Hide chrome that the presenter shouldn't see in preview */ |
| 155 | const hideSel = '.progress-bar, .notes-overlay, .overview, ' + NOTE_SEL; |
| 156 | document.querySelectorAll(hideSel).forEach(el => { el.style.display = 'none'; }); |
| 157 | document.documentElement.setAttribute('data-preview', '1'); |
| 158 | document.body.setAttribute('data-preview', '1'); |
| 159 | /* Auto-detect theme base path for theme switching in preview mode */ |
| 160 | function getPreviewThemeBase() { |
| 161 | const base = document.documentElement.getAttribute('data-theme-base'); |
| 162 | if (base) return base; |
| 163 | const tl = document.getElementById('theme-link'); |
| 164 | if (tl) { |
| 165 | const raw = tl.getAttribute('href') || ''; |
| 166 | const ls = raw.lastIndexOf('/'); |
| 167 | if (ls >= 0) return raw.substring(0, ls + 1); |
| 168 | } |
| 169 | return 'assets/themes/'; |
| 170 | } |
| 171 | const previewThemeBase = getPreviewThemeBase(); |
| 172 | |
| 173 | /* Listen for postMessage from parent presenter window: |
| 174 | * - preview-goto: switch visible slide WITHOUT reloading |
| 175 | * - preview-theme: switch theme CSS link to match audience window */ |
| 176 | window.addEventListener('message', function(e) { |
| 177 | if (!e.data) return; |
| 178 | if (e.data.type === 'preview-goto') { |
| 179 | const n = parseInt(e.data.idx, 10); |
| 180 | if (n >= 0 && n < slides.length) { showSlide(n); syncLogo(slides[n]); } |
| 181 | } else if (e.data.type === 'preview-theme' && e.data.name) { |
| 182 | let link = document.getElementById('theme-link'); |
| 183 | if (!link) { |
| 184 | link = document.createElement('link'); |
| 185 | link.rel = 'stylesheet'; |
| 186 | link.id = 'theme-link'; |
| 187 | document.head.appendChild(link); |
| 188 | } |
| 189 | link.href = previewThemeBase + e.data.name + '.css'; |
| 190 | document.documentElement.setAttribute('data-theme', e.data.name); |
| 191 | } |
| 192 | }); |
| 193 | /* Signal to parent that preview iframe is ready */ |
| 194 | try { window.parent && window.parent.postMessage({ type: 'preview-ready' }, '*'); } catch(e) {} |
| 195 | return; |
| 196 | } |
| 197 | |
| 198 | let idx = 0; |
| 199 | const total = slides.length; |
| 200 | |
| 201 | /* ===== BroadcastChannel for presenter sync ===== */ |
| 202 | const CHANNEL_NAME = 'html-ppt-presenter-' + location.pathname; |
| 203 | let bc; |
| 204 | try { bc = new BroadcastChannel(CHANNEL_NAME); } catch(e) { bc = null; } |
| 205 | |
| 206 | // Are we running inside the presenter popup? (legacy flag, now unused) |
| 207 | const isPresenterWindow = false; |
| 208 | |
| 209 | /* ===== progress bar ===== */ |
| 210 | let bar = document.querySelector('.progress-bar'); |
| 211 | if (!bar) { |
| 212 | bar = document.createElement('div'); |
| 213 | bar.className = 'progress-bar'; |
| 214 | bar.innerHTML = '<span></span>'; |
| 215 | document.body.appendChild(bar); |
| 216 | } |
| 217 | const barFill = bar.querySelector('span'); |
| 218 | |
| 219 | /* ===== notes overlay (N key) ===== */ |
| 220 | let notes = document.querySelector('.notes-overlay'); |
| 221 | if (!notes) { |
| 222 | notes = document.createElement('div'); |
| 223 | notes.className = 'notes-overlay'; |
| 224 | document.body.appendChild(notes); |
| 225 | } |
| 226 | |
| 227 | /* ===== overview grid (O key) ===== */ |
| 228 | let overview = document.querySelector('.overview'); |
| 229 | if (!overview) { |
| 230 | overview = document.createElement('div'); |
| 231 | overview.className = 'overview'; |
| 232 | slides.forEach((s, i) => { |
| 233 | const t = document.createElement('div'); |
| 234 | t.className = 'thumb'; |
| 235 | // Force 16:9 aspect ratio robustly |
| 236 | t.style.padding = '0 0 56.25% 0'; |
| 237 | t.style.height = '0'; |
| 238 | t.style.position = 'relative'; |
| 239 | t.style.overflow = 'hidden'; |
| 240 | |
| 241 | const title = s.getAttribute('data-title') || |
| 242 | (s.querySelector('h1,h2,h3')||{}).textContent || ('Slide '+(i+1)); |
| 243 | |
| 244 | // Create a container for the mini-slide |
| 245 | const mini = document.createElement('div'); |
| 246 | mini.className = 'mini-slide'; |
| 247 | mini.style.position = 'absolute'; |
| 248 | mini.style.top = '0'; |
| 249 | mini.style.left = '0'; |
| 250 | mini.style.width = '1920px'; |
| 251 | mini.style.height = '1080px'; |
| 252 | mini.style.transformOrigin = 'top left'; |
| 253 | mini.style.pointerEvents = 'none'; |
| 254 | mini.style.background = 'var(--bg)'; |
| 255 | |
| 256 | // Clone the slide content |
| 257 | const clone = s.cloneNode(true); |
| 258 | clone.className = 'slide is-active'; // force active styles |
| 259 | clone.style.position = 'absolute'; |
| 260 | clone.style.inset = '0'; |
| 261 | clone.style.transform = 'none'; |
| 262 | clone.style.opacity = '1'; |
| 263 | clone.style.padding = '72px 96px'; // ensure padding is kept |
| 264 | |
| 265 | mini.appendChild(clone); |
| 266 | t.appendChild(mini); |
| 267 | |
| 268 | // Add the number and title overlay |
| 269 | const overlay = document.createElement('div'); |
| 270 | overlay.style.position = 'absolute'; |
| 271 | overlay.style.inset = '0'; |
| 272 | overlay.style.background = 'linear-gradient(to bottom, rgba(0,0,0,0.2) 0%, transparent 40%, transparent 60%, rgba(0,0,0,0.8) 100%)'; |
| 273 | overlay.style.color = '#fff'; |
| 274 | overlay.style.zIndex = '10'; |
| 275 | overlay.style.pointerEvents = 'none'; |
| 276 | |
| 277 | const n = document.createElement('div'); |
| 278 | n.className = 'n'; |
| 279 | n.textContent = i + 1; |
| 280 | n.style.position = 'absolute'; |
| 281 | n.style.top = '12px'; |
| 282 | n.style.left = '16px'; |
| 283 | n.style.fontWeight = '700'; |
| 284 | n.style.fontSize = '16px'; |
| 285 | n.style.color = '#fff'; |
| 286 | n.style.textShadow = '0 1px 4px rgba(0,0,0,0.8)'; |
| 287 | |
| 288 | const text = document.createElement('div'); |
| 289 | text.className = 't'; |
| 290 | text.textContent = title.trim().slice(0,80); |
| 291 | text.style.position = 'absolute'; |
| 292 | text.style.bottom = '12px'; |
| 293 | text.style.left = '16px'; |
| 294 | text.style.right = '16px'; |
| 295 | text.style.fontWeight = '600'; |
| 296 | text.style.fontSize = '14px'; |
| 297 | text.style.color = '#fff'; |
| 298 | text.style.textShadow = '0 1px 4px rgba(0,0,0,0.8)'; |
| 299 | |
| 300 | overlay.appendChild(n); |
| 301 | overlay.appendChild(text); |
| 302 | t.appendChild(overlay); |
| 303 | |
| 304 | t.addEventListener('click', () => { go(i); toggleOverview(false); }); |
| 305 | overview.appendChild(t); |
| 306 | }); |
| 307 | document.body.appendChild(overview); |
| 308 | } |
| 309 | |
| 310 | /* ===== navigation ===== */ |
| 311 | function go(n, fromRemote){ |
| 312 | n = Math.max(0, Math.min(total-1, n)); |
| 313 | slides.forEach((s,i) => { |
| 314 | s.classList.toggle('is-active', i===n); |
| 315 | s.classList.toggle('is-prev', i<n); |
| 316 | }); |
| 317 | idx = n; |
| 318 | syncLogo(slides[n]); |
| 319 | barFill.style.width = ((n+1)/total*100)+'%'; |
| 320 | const numEl = document.querySelector('.slide-number'); |
| 321 | if (numEl) { numEl.setAttribute('data-current', n+1); numEl.setAttribute('data-total', total); } |
| 322 | |
| 323 | // notes (bottom overlay) |
| 324 | const note = slides[n].querySelector(NOTE_SEL); |
| 325 | notes.innerHTML = note ? note.innerHTML : ''; |
| 326 | |
| 327 | // hash |
| 328 | const hashTarget = '#/'+(n+1); |
| 329 | if (location.hash !== hashTarget && !isPresenterWindow) { |
| 330 | history.replaceState(null,'', hashTarget); |
| 331 | } |
| 332 | |
| 333 | // re-trigger entry animations |
| 334 | slides[n].querySelectorAll('[data-anim]').forEach(el => { |
| 335 | const a = el.getAttribute('data-anim'); |
| 336 | el.classList.remove('anim-'+a); |
| 337 | void el.offsetWidth; |
| 338 | el.classList.add('anim-'+a); |
| 339 | }); |
| 340 | |
| 341 | // counter-up |
| 342 | slides[n].querySelectorAll('.counter').forEach(el => { |
| 343 | const target = parseFloat(el.getAttribute('data-to')||el.textContent); |
| 344 | const dur = parseInt(el.getAttribute('data-dur')||'1200',10); |
| 345 | const start = performance.now(); |
| 346 | const from = 0; |
| 347 | function tick(now){ |
| 348 | const t = Math.min(1,(now-start)/dur); |
| 349 | const v = from + (target-from)*(1-Math.pow(1-t,3)); |
| 350 | el.textContent = (target % 1 === 0) ? Math.round(v) : v.toFixed(1); |
| 351 | if (t<1) requestAnimationFrame(tick); |
| 352 | } |
| 353 | requestAnimationFrame(tick); |
| 354 | }); |
| 355 | |
| 356 | // Broadcast to other window (audience ↔ presenter) |
| 357 | if (!fromRemote && bc) { |
| 358 | bc.postMessage({ type: 'go', idx: n }); |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | /* ===== listen for remote navigation / theme changes ===== */ |
| 363 | if (bc) { |
| 364 | bc.onmessage = function(e) { |
| 365 | if (!e.data) return; |
| 366 | if (e.data.type === 'go' && typeof e.data.idx === 'number') { |
| 367 | go(e.data.idx, true); |
| 368 | } else if (e.data.type === 'theme' && e.data.name) { |
| 369 | /* Sync theme across windows */ |
| 370 | const i = themes.indexOf(e.data.name); |
| 371 | if (i >= 0) themeIdx = i; |
| 372 | applyTheme(e.data.name); |
| 373 | } |
| 374 | }; |
| 375 | } |
| 376 | |
| 377 | function toggleNotes(force){ notes.classList.toggle('open', force!==undefined?force:!notes.classList.contains('open')); } |
| 378 | function toggleOverview(force){ |
| 379 | const isOpen = force!==undefined ? force : !overview.classList.contains('open'); |
| 380 | overview.classList.toggle('open', isOpen); |
| 381 | if (isOpen) { |
| 382 | requestAnimationFrame(() => { |
| 383 | const thumbs = overview.querySelectorAll('.thumb'); |
| 384 | if (thumbs.length) { |
| 385 | const scale = thumbs[0].clientWidth / 1920; |
| 386 | overview.querySelectorAll('.mini-slide').forEach(m => { |
| 387 | m.style.transform = 'scale(' + scale + ')'; |
| 388 | }); |
| 389 | } |
| 390 | }); |
| 391 | } |
| 392 | } |
| 393 | |
| 394 | /* ========== PRESENTER MODE — Magnetic-card popup window ========== */ |
| 395 | /* Opens a new window with 4 draggable, resizable cards: |
| 396 | * CURRENT — iframe(?preview=N) pixel-perfect preview of current slide |
| 397 | * NEXT — iframe(?preview=N+1) pixel-perfect preview of next slide |
| 398 | * SCRIPT — large speaker notes (逐字稿) |
| 399 | * TIMER — elapsed timer + page counter + controls |
| 400 | * Cards remember position/size in localStorage. |
| 401 | * Two windows sync via BroadcastChannel. |
| 402 | */ |
| 403 | let presenterWin = null; |
| 404 | |
| 405 | function openPresenterWindow() { |
| 406 | if (presenterWin && !presenterWin.closed) { |
| 407 | presenterWin.focus(); |
| 408 | return; |
| 409 | } |
| 410 | |
| 411 | // Build absolute URL of THIS deck file (without hash/query) |
| 412 | const deckUrl = location.protocol + '//' + location.host + location.pathname; |
| 413 | |
| 414 | // Collect slide titles + notes (HTML strings) |
| 415 | const slideMeta = slides.map((s, i) => { |
| 416 | const note = s.querySelector(NOTE_SEL); |
| 417 | return { |
| 418 | title: s.getAttribute('data-title') || |
| 419 | (s.querySelector('h1,h2,h3')||{}).textContent || ('Slide '+(i+1)), |
| 420 | notes: note ? note.innerHTML : '' |
| 421 | }; |
| 422 | }); |
| 423 | |
| 424 | /* Capture current theme so presenter previews match the audience */ |
| 425 | const currentTheme = root.getAttribute('data-theme') || (themes[themeIdx] || ''); |
| 426 | const presenterHTML = buildPresenterHTML(deckUrl, slideMeta, total, idx, CHANNEL_NAME, currentTheme); |
| 427 | |
| 428 | presenterWin = window.open('', 'html-ppt-presenter', 'width=1280,height=820,menubar=no,toolbar=no'); |
| 429 | if (!presenterWin) { |
| 430 | alert('请允许弹出窗口以使用演讲者视图'); |
| 431 | return; |
| 432 | } |
| 433 | presenterWin.document.open(); |
| 434 | presenterWin.document.write(presenterHTML); |
| 435 | presenterWin.document.close(); |
| 436 | } |
| 437 | |
| 438 | function buildPresenterHTML(deckUrl, slideMeta, total, startIdx, channelName, currentTheme) { |
| 439 | /* Notes are authored HTML. Escaping "<" keeps a literal </script> in a |
| 440 | slide's notes from closing the inline script that carries this JSON — |
| 441 | which would kill the whole presenter init. */ |
| 442 | const embed = (v) => JSON.stringify(v).replace(/</g, '\\u003c'); |
| 443 | const metaJSON = embed(slideMeta); |
| 444 | const deckUrlJSON = embed(deckUrl); |
| 445 | const channelJSON = embed(channelName); |
| 446 | const themeJSON = embed(currentTheme || ''); |
| 447 | const storageKey = 'html-ppt-presenter:' + location.pathname; |
| 448 | |
| 449 | // Build the document as a single template string for clarity |
| 450 | return `<!DOCTYPE html> |
| 451 | <html lang="zh-CN"> |
| 452 | <head> |
| 453 | <meta charset="utf-8"> |
| 454 | <title>Presenter View</title> |
| 455 | <style> |
| 456 | * { margin: 0; padding: 0; box-sizing: border-box; } |
| 457 | html, body { |
| 458 | width: 100%; height: 100%; overflow: hidden; |
| 459 | background: #1a1d24; |
| 460 | background-image: |
| 461 | radial-gradient(circle at 20% 30%, rgba(88,166,255,.04), transparent 50%), |
| 462 | radial-gradient(circle at 80% 70%, rgba(188,140,255,.04), transparent 50%); |
| 463 | color: #e6edf3; |
| 464 | font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", sans-serif; |
| 465 | } |
| 466 | /* Stage: positioned area where cards live */ |
| 467 | #stage { position: absolute; inset: 0; overflow: hidden; } |
| 468 | |
| 469 | /* Magnetic card */ |
| 470 | .pcard { |
| 471 | position: absolute; |
| 472 | background: #0d1117; |
| 473 | border: 1px solid rgba(255,255,255,.1); |
| 474 | border-radius: 12px; |
| 475 | box-shadow: 0 8px 32px rgba(0,0,0,.45), 0 0 0 1px rgba(255,255,255,.02); |
| 476 | display: flex; flex-direction: column; |
| 477 | overflow: hidden; |
| 478 | min-width: 180px; min-height: 100px; |
| 479 | transition: box-shadow .2s, border-color .2s; |
| 480 | } |
| 481 | |
| 482 | /* Default geometry. The cards used to get position and size ONLY from |
| 483 | applyLayout(), which runs at the very end of the init — so anything that |
| 484 | stopped that script (a blocked inline script under CSP, a stale layout in |
| 485 | localStorage, any throw in the wiring above it) left four cards collapsed |
| 486 | on top of each other and just the hint bar visible (#14). These rules make |
| 487 | the presenter usable with zero JS; applyLayout() overrides them with px. */ |
| 488 | #card-cur { left: 16px; top: 16px; |
| 489 | width: calc(55% - 24px); height: calc((100% - 36px) * 0.62 - 16px); } |
| 490 | #card-nxt { left: calc(55% + 8px); top: 16px; |
| 491 | width: calc(45% - 24px); height: calc((100% - 36px) * 0.42 - 16px); } |
| 492 | #card-notes { left: calc(55% + 8px); top: calc((100% - 36px) * 0.42 + 8px); |
| 493 | width: calc(45% - 24px); height: calc((100% - 36px) * 0.58 - 16px); } |
| 494 | #card-timer { left: 16px; top: calc((100% - 36px) * 0.62 + 8px); |
| 495 | width: calc(55% - 24px); height: calc((100% - 36px) * 0.38 - 16px); } |
| 496 | |
| 497 | .pcard.dragging { box-shadow: 0 16px 48px rgba(0,0,0,.6), 0 0 0 2px rgba(88,166,255,.5); border-color: #58a6ff; transition: none; z-index: 9999; } |
| 498 | .pcard.resizing { box-shadow: 0 16px 48px rgba(0,0,0,.6), 0 0 0 2px rgba(63,185,80,.5); border-color: #3fb950; transition: none; z-index: 9999; } |
| 499 | .pcard:hover { border-color: rgba(88,166,255,.3); } |
| 500 | |
| 501 | /* Card header (drag handle) */ |
| 502 | .pcard-head { |
| 503 | display: flex; align-items: center; gap: 10px; |
| 504 | padding: 8px 12px; |
| 505 | background: rgba(255,255,255,.04); |
| 506 | border-bottom: 1px solid rgba(255,255,255,.06); |
| 507 | cursor: move; |
| 508 | user-select: none; |
| 509 | flex-shrink: 0; |
| 510 | } |
| 511 | .pcard-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--dot-color, #58a6ff); flex-shrink: 0; } |
| 512 | .pcard-title { |
| 513 | font-size: 11px; letter-spacing: .15em; text-transform: uppercase; |
| 514 | font-weight: 700; color: #8b949e; flex: 1; |
| 515 | } |
| 516 | .pcard-meta { font-size: 11px; color: #6e7681; } |
| 517 | |
| 518 | /* Card body */ |
| 519 | .pcard-body { flex: 1; position: relative; overflow: hidden; min-height: 0; } |
| 520 | |
| 521 | /* Preview cards (CURRENT/NEXT) — iframe-based pixel-perfect render */ |
| 522 | .pcard-preview .pcard-body { background: #000; } |
| 523 | .pcard-preview iframe { |
| 524 | position: absolute; top: 0; left: 0; |
| 525 | width: 1920px; height: 1080px; |
| 526 | border: none; |
| 527 | transform-origin: top left; |
| 528 | pointer-events: none; |
| 529 | background: transparent; |
| 530 | } |
| 531 | .pcard-preview .preview-end { |
| 532 | position: absolute; inset: 0; |
| 533 | display: flex; align-items: center; justify-content: center; |
| 534 | color: #484f58; font-size: 14px; letter-spacing: .12em; |
| 535 | } |
| 536 | |
| 537 | /* Notes card */ |
| 538 | .pcard-notes .pcard-body { |
| 539 | padding: 14px 18px; |
| 540 | overflow-y: auto; |
| 541 | font-size: 18px; line-height: 1.75; |
| 542 | color: #d0d7de; |
| 543 | font-family: "Noto Sans SC", -apple-system, sans-serif; |
| 544 | } |
| 545 | .pcard-notes .pcard-body p { margin: 0 0 .7em 0; } |
| 546 | .pcard-notes .pcard-body strong { color: #f0883e; } |
| 547 | .pcard-notes .pcard-body em { color: #58a6ff; font-style: normal; } |
| 548 | .pcard-notes .pcard-body code { |
| 549 | font-family: "SF Mono", monospace; font-size: .9em; |
| 550 | background: rgba(255,255,255,.08); padding: 1px 6px; border-radius: 4px; |
| 551 | } |
| 552 | .pcard-notes .empty { color: #484f58; font-style: italic; } |
| 553 | |
| 554 | /* Timer card */ |
| 555 | .pcard-timer .pcard-body { |
| 556 | display: flex; flex-direction: column; gap: 14px; |
| 557 | padding: 18px 20px; justify-content: center; |
| 558 | } |
| 559 | .timer-display { |
| 560 | font-family: "SF Mono", "JetBrains Mono", monospace; |
| 561 | font-size: 42px; font-weight: 700; |
| 562 | color: #3fb950; |
| 563 | letter-spacing: .04em; |
| 564 | line-height: 1; |
| 565 | } |
| 566 | .timer-row { |
| 567 | display: flex; align-items: center; gap: 12px; |
| 568 | font-size: 14px; color: #8b949e; |
| 569 | } |
| 570 | .timer-row .label { font-size: 10px; letter-spacing: .15em; text-transform: uppercase; color: #6e7681; } |
| 571 | .timer-row .val { color: #e6edf3; font-weight: 600; font-family: "SF Mono", monospace; } |
| 572 | .timer-controls { display: flex; gap: 8px; flex-wrap: wrap; } |
| 573 | .timer-btn { |
| 574 | background: rgba(255,255,255,.06); |
| 575 | border: 1px solid rgba(255,255,255,.1); |
| 576 | color: #e6edf3; |
| 577 | padding: 6px 12px; |
| 578 | border-radius: 6px; |
| 579 | font-size: 12px; |
| 580 | cursor: pointer; |
| 581 | font-family: inherit; |
| 582 | } |
| 583 | .timer-btn:hover { background: rgba(88,166,255,.15); border-color: #58a6ff; } |
| 584 | .timer-btn:active { transform: translateY(1px); } |
| 585 | |
| 586 | /* Resize handle */ |
| 587 | .pcard-resize { |
| 588 | position: absolute; right: 0; bottom: 0; |
| 589 | width: 18px; height: 18px; |
| 590 | cursor: nwse-resize; |
| 591 | background: linear-gradient(135deg, transparent 50%, rgba(255,255,255,.25) 50%, rgba(255,255,255,.25) 60%, transparent 60%, transparent 70%, rgba(255,255,255,.25) 70%, rgba(255,255,255,.25) 80%, transparent 80%); |
| 592 | z-index: 5; |
| 593 | } |
| 594 | .pcard-resize:hover { background: linear-gradient(135deg, transparent 50%, #58a6ff 50%, #58a6ff 60%, transparent 60%, transparent 70%, #58a6ff 70%, #58a6ff 80%, transparent 80%); } |
| 595 | |
| 596 | /* Bottom hint bar */ |
| 597 | .hint-bar { |
| 598 | position: fixed; bottom: 0; left: 0; right: 0; |
| 599 | background: rgba(0,0,0,.6); |
| 600 | backdrop-filter: blur(10px); |
| 601 | border-top: 1px solid rgba(255,255,255,.08); |
| 602 | padding: 6px 16px; |
| 603 | font-size: 11px; color: #8b949e; |
| 604 | display: flex; gap: 18px; align-items: center; |
| 605 | z-index: 1000; |
| 606 | } |
| 607 | .hint-bar kbd { |
| 608 | background: rgba(255,255,255,.08); |
| 609 | padding: 1px 6px; border-radius: 3px; |
| 610 | font-family: "SF Mono", monospace; |
| 611 | font-size: 10px; |
| 612 | border: 1px solid rgba(255,255,255,.1); |
| 613 | color: #e6edf3; |
| 614 | } |
| 615 | .hint-bar .reset-layout { |
| 616 | margin-left: auto; |
| 617 | background: transparent; border: 1px solid rgba(255,255,255,.15); |
| 618 | color: #8b949e; padding: 3px 10px; border-radius: 4px; |
| 619 | font-size: 11px; cursor: pointer; font-family: inherit; |
| 620 | } |
| 621 | .hint-bar .reset-layout:hover { background: rgba(248,81,73,.15); border-color: #f85149; color: #f85149; } |
| 622 | |
| 623 | body.is-dragging-card * { user-select: none !important; } |
| 624 | body.is-dragging-card iframe { pointer-events: none !important; } |
| 625 | </style> |
| 626 | </head> |
| 627 | <body> |
| 628 | |
| 629 | <div id="stage"> |
| 630 | <div class="pcard pcard-preview" id="card-cur" style="--dot-color:#58a6ff"> |
| 631 | <div class="pcard-head" data-drag> |
| 632 | <span class="pcard-dot"></span> |
| 633 | <span class="pcard-title">CURRENT</span> |
| 634 | <span class="pcard-meta" id="cur-meta">—</span> |
| 635 | </div> |
| 636 | <div class="pcard-body"><iframe id="iframe-cur"></iframe></div> |
| 637 | <div class="pcard-resize" data-resize></div> |
| 638 | </div> |
| 639 | |
| 640 | <div class="pcard pcard-preview" id="card-nxt" style="--dot-color:#bc8cff"> |
| 641 | <div class="pcard-head" data-drag> |
| 642 | <span class="pcard-dot"></span> |
| 643 | <span class="pcard-title">NEXT</span> |
| 644 | <span class="pcard-meta" id="nxt-meta">—</span> |
| 645 | </div> |
| 646 | <div class="pcard-body"><iframe id="iframe-nxt"></iframe></div> |
| 647 | <div class="pcard-resize" data-resize></div> |
| 648 | </div> |
| 649 | |
| 650 | <div class="pcard pcard-notes" id="card-notes" style="--dot-color:#f0883e"> |
| 651 | <div class="pcard-head" data-drag> |
| 652 | <span class="pcard-dot"></span> |
| 653 | <span class="pcard-title">SPEAKER SCRIPT · 逐字稿</span> |
| 654 | </div> |
| 655 | <div class="pcard-body" id="notes-body"></div> |
| 656 | <div class="pcard-resize" data-resize></div> |
| 657 | </div> |
| 658 | |
| 659 | <div class="pcard pcard-timer" id="card-timer" style="--dot-color:#3fb950"> |
| 660 | <div class="pcard-head" data-drag> |
| 661 | <span class="pcard-dot"></span> |
| 662 | <span class="pcard-title">TIMER</span> |
| 663 | </div> |
| 664 | <div class="pcard-body"> |
| 665 | <div class="timer-display" id="timer-display">00:00</div> |
| 666 | <div class="timer-row"> |
| 667 | <span class="label">Slide</span> |
| 668 | <span class="val" id="timer-count">1 / ${total}</span> |
| 669 | </div> |
| 670 | <div class="timer-controls"> |
| 671 | <button class="timer-btn" id="btn-prev">← Prev</button> |
| 672 | <button class="timer-btn" id="btn-next">Next →</button> |
| 673 | <button class="timer-btn" id="btn-reset">⏱ Reset</button> |
| 674 | </div> |
| 675 | </div> |
| 676 | <div class="pcard-resize" data-resize></div> |
| 677 | </div> |
| 678 | </div> |
| 679 | |
| 680 | <div class="hint-bar"> |
| 681 | <span><kbd>← →</kbd> 翻页</span> |
| 682 | <span><kbd>R</kbd> 重置计时</span> |
| 683 | <span><kbd>Esc</kbd> 关闭</span> |
| 684 | <span style="color:#6e7681">拖动卡片头部移动 · 拖动右下角调整大小</span> |
| 685 | <button class="reset-layout" id="reset-layout">重置布局</button> |
| 686 | </div> |
| 687 | |
| 688 | <script> |
| 689 | (function(){ |
| 690 | var slideMeta = ${metaJSON}; |
| 691 | var total = ${total}; |
| 692 | var idx = ${startIdx}; |
| 693 | var deckUrl = ${deckUrlJSON}; |
| 694 | var STORAGE_KEY = ${embed(storageKey)}; |
| 695 | var bc; |
| 696 | try { bc = new BroadcastChannel(${channelJSON}); } catch(e) {} |
| 697 | |
| 698 | var iframeCur = document.getElementById('iframe-cur'); |
| 699 | var iframeNxt = document.getElementById('iframe-nxt'); |
| 700 | var notesBody = document.getElementById('notes-body'); |
| 701 | var curMeta = document.getElementById('cur-meta'); |
| 702 | var nxtMeta = document.getElementById('nxt-meta'); |
| 703 | var timerDisplay = document.getElementById('timer-display'); |
| 704 | var timerCount = document.getElementById('timer-count'); |
| 705 | |
| 706 | /* Lay the cards out before anything else. This used to be the LAST statement |
| 707 | of the init, so every line below it was a single point of failure for the |
| 708 | whole presenter's visibility (#14). Function declarations hoist, so this is |
| 709 | safe here. */ |
| 710 | applyLayout(readLayout()); |
| 711 | |
| 712 | /* ===== Default card layout ===== */ |
| 713 | var CARD_IDS = ['card-cur','card-nxt','card-notes','card-timer']; |
| 714 | var MIN_W = 180, MIN_H = 100; |
| 715 | |
| 716 | function defaultLayout() { |
| 717 | /* A popup that opened minimised or in a background tab can report 0 here; |
| 718 | the old code turned that into negative widths, which CSS discards. */ |
| 719 | var w = Math.max(640, window.innerWidth || 0); |
| 720 | var h = Math.max(400, (window.innerHeight || 0) - 36); /* room for hint bar */ |
| 721 | return { |
| 722 | 'card-cur': { x: 16, y: 16, w: Math.round(w*0.55) - 24, h: Math.round(h*0.62) - 16 }, |
| 723 | 'card-nxt': { x: Math.round(w*0.55) + 8, y: 16, w: w - Math.round(w*0.55) - 24, h: Math.round(h*0.42) - 16 }, |
| 724 | 'card-notes': { x: Math.round(w*0.55) + 8, y: Math.round(h*0.42) + 8, w: w - Math.round(w*0.55) - 24, h: h - Math.round(h*0.42) - 16 }, |
| 725 | 'card-timer': { x: 16, y: Math.round(h*0.62) + 8, w: Math.round(w*0.55) - 24, h: h - Math.round(h*0.62) - 16 } |
| 726 | }; |
| 727 | } |
| 728 | |
| 729 | /* ===== Apply / save / restore layout ===== */ |
| 730 | function applyLayout(layout) { |
| 731 | Object.keys(layout).forEach(function(id){ |
| 732 | var el = document.getElementById(id); |
| 733 | var l = layout[id]; |
| 734 | if (el && l) { |
| 735 | el.style.left = l.x + 'px'; |
| 736 | el.style.top = l.y + 'px'; |
| 737 | el.style.width = l.w + 'px'; |
| 738 | el.style.height = l.h + 'px'; |
| 739 | } |
| 740 | }); |
| 741 | rescaleAll(); |
| 742 | } |
| 743 | /* A layout restored from localStorage was written against whatever window |
| 744 | size the deck was last presented at. Replayed in a smaller window it puts |
| 745 | every card off-screen, and there is no way back because the layout is |
| 746 | sticky — so clamp it into view and reject anything malformed. */ |
| 747 | function sanitizeLayout(layout) { |
| 748 | if (!layout || typeof layout !== 'object') return null; |
| 749 | var vw = Math.max(MIN_W, window.innerWidth || 0); |
| 750 | var vh = Math.max(MIN_H, window.innerHeight || 0); |
| 751 | var out = {}; |
| 752 | for (var i = 0; i < CARD_IDS.length; i++) { |
| 753 | var l = layout[CARD_IDS[i]]; |
| 754 | if (!l) return null; |
| 755 | var cw = Math.min(Math.max(+l.w || 0, MIN_W), vw); |
| 756 | var ch = Math.min(Math.max(+l.h || 0, MIN_H), vh); |
| 757 | var cx = Math.min(Math.max(+l.x || 0, 0), Math.max(0, vw - MIN_W)); |
| 758 | var cy = Math.min(Math.max(+l.y || 0, 0), Math.max(0, vh - 40)); |
| 759 | if (!isFinite(cw) || !isFinite(ch) || !isFinite(cx) || !isFinite(cy)) return null; |
| 760 | out[CARD_IDS[i]] = { x: cx, y: cy, w: cw, h: ch }; |
| 761 | } |
| 762 | return out; |
| 763 | } |
| 764 | function readLayout() { |
| 765 | var saved = null; |
| 766 | try { saved = JSON.parse(localStorage.getItem(STORAGE_KEY)); } catch(e) {} |
| 767 | return sanitizeLayout(saved) || defaultLayout(); |
| 768 | } |
| 769 | function saveLayout() { |
| 770 | var layout = {}; |
| 771 | CARD_IDS.forEach(function(id){ |
| 772 | var el = document.getElementById(id); |
| 773 | if (el) { |
| 774 | layout[id] = { |
| 775 | x: parseInt(el.style.left,10) || 0, |
| 776 | y: parseInt(el.style.top,10) || 0, |
| 777 | w: parseInt(el.style.width,10) || 300, |
| 778 | h: parseInt(el.style.height,10) || 200 |
| 779 | }; |
| 780 | } |
| 781 | }); |
| 782 | try { localStorage.setItem(STORAGE_KEY, JSON.stringify(layout)); } catch(e) {} |
| 783 | } |
| 784 | |
| 785 | /* ===== iframe rescale to fit card body ===== */ |
| 786 | function rescaleIframe(iframe) { |
| 787 | if (!iframe || iframe.style.display === 'none') return; |
| 788 | var body = iframe.parentElement; |
| 789 | var cw = body.clientWidth, ch = body.clientHeight; |
| 790 | if (!cw || !ch) return; |
| 791 | var s = Math.min(cw / 1920, ch / 1080); |
| 792 | iframe.style.transform = 'scale(' + s + ')'; |
| 793 | /* Center the scaled iframe in the body */ |
| 794 | var sw = 1920 * s, sh = 1080 * s; |
| 795 | iframe.style.left = Math.max(0, (cw - sw) / 2) + 'px'; |
| 796 | iframe.style.top = Math.max(0, (ch - sh) / 2) + 'px'; |
| 797 | } |
| 798 | function rescaleAll() { |
| 799 | rescaleIframe(iframeCur); |
| 800 | rescaleIframe(iframeNxt); |
| 801 | } |
| 802 | window.addEventListener('resize', rescaleAll); |
| 803 | |
| 804 | /* ===== Drag (move card by header) ===== */ |
| 805 | document.querySelectorAll('[data-drag]').forEach(function(handle){ |
| 806 | handle.addEventListener('mousedown', function(e){ |
| 807 | if (e.button !== 0) return; |
| 808 | var card = handle.closest('.pcard'); |
| 809 | if (!card) return; |
| 810 | e.preventDefault(); |
| 811 | card.classList.add('dragging'); |
| 812 | document.body.classList.add('is-dragging-card'); |
| 813 | var startX = e.clientX, startY = e.clientY; |
| 814 | var startL = parseInt(card.style.left,10) || 0; |
| 815 | var startT = parseInt(card.style.top,10) || 0; |
| 816 | function onMove(ev){ |
| 817 | var nx = Math.max(0, Math.min(window.innerWidth - 100, startL + ev.clientX - startX)); |
| 818 | var ny = Math.max(0, Math.min(window.innerHeight - 50, startT + ev.clientY - startY)); |
| 819 | card.style.left = nx + 'px'; |
| 820 | card.style.top = ny + 'px'; |
| 821 | } |
| 822 | function onUp(){ |
| 823 | card.classList.remove('dragging'); |
| 824 | document.body.classList.remove('is-dragging-card'); |
| 825 | document.removeEventListener('mousemove', onMove); |
| 826 | document.removeEventListener('mouseup', onUp); |
| 827 | saveLayout(); |
| 828 | } |
| 829 | document.addEventListener('mousemove', onMove); |
| 830 | document.addEventListener('mouseup', onUp); |
| 831 | }); |
| 832 | }); |
| 833 | |
| 834 | /* ===== Resize (drag bottom-right corner) ===== */ |
| 835 | document.querySelectorAll('[data-resize]').forEach(function(handle){ |
| 836 | handle.addEventListener('mousedown', function(e){ |
| 837 | if (e.button !== 0) return; |
| 838 | var card = handle.closest('.pcard'); |
| 839 | if (!card) return; |
| 840 | e.preventDefault(); e.stopPropagation(); |
| 841 | card.classList.add('resizing'); |
| 842 | document.body.classList.add('is-dragging-card'); |
| 843 | var startX = e.clientX, startY = e.clientY; |
| 844 | var startW = parseInt(card.style.width,10) || card.offsetWidth; |
| 845 | var startH = parseInt(card.style.height,10) || card.offsetHeight; |
| 846 | function onMove(ev){ |
| 847 | var nw = Math.max(180, startW + ev.clientX - startX); |
| 848 | var nh = Math.max(100, startH + ev.clientY - startY); |
| 849 | card.style.width = nw + 'px'; |
| 850 | card.style.height = nh + 'px'; |
| 851 | if (card.querySelector('iframe')) rescaleIframe(card.querySelector('iframe')); |
| 852 | } |
| 853 | function onUp(){ |
| 854 | card.classList.remove('resizing'); |
| 855 | document.body.classList.remove('is-dragging-card'); |
| 856 | document.removeEventListener('mousemove', onMove); |
| 857 | document.removeEventListener('mouseup', onUp); |
| 858 | rescaleAll(); |
| 859 | saveLayout(); |
| 860 | } |
| 861 | document.addEventListener('mousemove', onMove); |
| 862 | document.addEventListener('mouseup', onUp); |
| 863 | }); |
| 864 | }); |
| 865 | |
| 866 | /* ===== Preview iframe ready tracking ===== |
| 867 | * Each iframe loads the deck ONCE with ?preview=1 on init. Subsequent |
| 868 | * slide changes are sent via postMessage('preview-goto') so the iframe |
| 869 | * just toggles visibility of a different .slide — no reload, no flicker. |
| 870 | */ |
| 871 | var iframeReady = { cur: false, nxt: false }; |
| 872 | var currentTheme = ${themeJSON}; |
| 873 | window.addEventListener('message', function(e) { |
| 874 | if (!e.data || e.data.type !== 'preview-ready') return; |
| 875 | var iframe = null; |
| 876 | if (e.source === iframeCur.contentWindow) { |
| 877 | iframeReady.cur = true; |
| 878 | iframe = iframeCur; |
| 879 | postPreviewGoto(iframeCur, idx); |
| 880 | } else if (e.source === iframeNxt.contentWindow) { |
| 881 | iframeReady.nxt = true; |
| 882 | iframe = iframeNxt; |
| 883 | postPreviewGoto(iframeNxt, idx + 1 < total ? idx + 1 : idx); |
| 884 | } |
| 885 | /* Sync current theme to the iframe */ |
| 886 | if (iframe && currentTheme) { |
| 887 | try { iframe.contentWindow.postMessage({ type: 'preview-theme', name: currentTheme }, '*'); } catch(err) {} |
| 888 | } |
| 889 | if (iframe) rescaleIframe(iframe); |
| 890 | }); |
| 891 | |
| 892 | function postPreviewGoto(iframe, n) { |
| 893 | try { |
| 894 | iframe.contentWindow.postMessage({ type: 'preview-goto', idx: n }, '*'); |
| 895 | } catch(e) {} |
| 896 | } |
| 897 | |
| 898 | /* ===== Update content ===== |
| 899 | * Smooth (no-reload) navigation: send postMessage to iframes instead of |
| 900 | * resetting src. Iframes stay loaded, just switch visible .slide. |
| 901 | */ |
| 902 | function update(n) { |
| 903 | n = Math.max(0, Math.min(total - 1, n)); |
| 904 | idx = n; |
| 905 | |
| 906 | /* Current preview — postMessage (smooth) */ |
| 907 | if (iframeReady.cur) postPreviewGoto(iframeCur, n); |
| 908 | curMeta.textContent = (n + 1) + '/' + total; |
| 909 | |
| 910 | /* Next preview */ |
| 911 | if (n + 1 < total) { |
| 912 | iframeNxt.style.display = ''; |
| 913 | var endEl = document.querySelector('#card-nxt .preview-end'); |
| 914 | if (endEl) endEl.remove(); |
| 915 | if (iframeReady.nxt) postPreviewGoto(iframeNxt, n + 1); |
| 916 | nxtMeta.textContent = (n + 2) + '/' + total; |
| 917 | } else { |
| 918 | iframeNxt.style.display = 'none'; |
| 919 | var body = document.querySelector('#card-nxt .pcard-body'); |
| 920 | if (body && !body.querySelector('.preview-end')) { |
| 921 | var end = document.createElement('div'); |
| 922 | end.className = 'preview-end'; |
| 923 | end.textContent = '— END OF DECK —'; |
| 924 | body.appendChild(end); |
| 925 | } |
| 926 | nxtMeta.textContent = 'END'; |
| 927 | } |
| 928 | |
| 929 | /* Notes */ |
| 930 | var note = slideMeta[n].notes; |
| 931 | notesBody.innerHTML = note || '<span class="empty">（这一页还没有逐字稿）</span>'; |
| 932 | |
| 933 | /* Timer count */ |
| 934 | timerCount.textContent = (n + 1) + ' / ' + total; |
| 935 | } |
| 936 | |
| 937 | /* ===== Timer ===== */ |
| 938 | var tStart = Date.now(); |
| 939 | setInterval(function(){ |
| 940 | var s = Math.floor((Date.now() - tStart) / 1000); |
| 941 | var mm = String(Math.floor(s/60)).padStart(2,'0'); |
| 942 | var ss = String(s%60).padStart(2,'0'); |
| 943 | timerDisplay.textContent = mm + ':' + ss; |
| 944 | }, 1000); |
| 945 | function resetTimer(){ tStart = Date.now(); timerDisplay.textContent = '00:00'; } |
| 946 | |
| 947 | /* ===== BroadcastChannel sync ===== */ |
| 948 | if (bc) { |
| 949 | bc.onmessage = function(e){ |
| 950 | if (!e.data) return; |
| 951 | if (e.data.type === 'go') update(e.data.idx); |
| 952 | else if (e.data.type === 'theme' && e.data.name) { |
| 953 | currentTheme = e.data.name; |
| 954 | /* Forward theme change to preview iframes */ |
| 955 | [iframeCur, iframeNxt].forEach(function(iframe){ |
| 956 | try { |
| 957 | iframe.contentWindow.postMessage({ type: 'preview-theme', name: e.data.name }, '*'); |
| 958 | } catch(err) {} |
| 959 | }); |
| 960 | } |
| 961 | }; |
| 962 | } |
| 963 | function go(n) { |
| 964 | update(n); |
| 965 | if (bc) bc.postMessage({ type: 'go', idx: idx }); |
| 966 | } |
| 967 | |
| 968 | /* ===== Buttons ===== */ |
| 969 | document.getElementById('btn-prev').addEventListener('click', function(){ go(idx - 1); }); |
| 970 | document.getElementById('btn-next').addEventListener('click', function(){ go(idx + 1); }); |
| 971 | document.getElementById('btn-reset').addEventListener('click', resetTimer); |
| 972 | document.getElementById('reset-layout').addEventListener('click', function(){ |
| 973 | if (confirm('恢复默认卡片布局？')) { |
| 974 | try { localStorage.removeItem(STORAGE_KEY); } catch(e){} |
| 975 | applyLayout(defaultLayout()); |
| 976 | } |
| 977 | }); |
| 978 | |
| 979 | /* ===== Keyboard ===== */ |
| 980 | document.addEventListener('keydown', function(e){ |
| 981 | if (e.metaKey || e.ctrlKey || e.altKey) return; |
| 982 | switch(e.key) { |
| 983 | case 'ArrowRight': case ' ': case 'PageDown': go(idx + 1); e.preventDefault(); break; |
| 984 | case 'ArrowLeft': case 'PageUp': go(idx - 1); e.preventDefault(); break; |
| 985 | case 'Home': go(0); break; |
| 986 | case 'End': go(total - 1); break; |
| 987 | case 'r': case 'R': resetTimer(); break; |
| 988 | case 'Escape': window.close(); break; |
| 989 | } |
| 990 | }); |
| 991 | |
| 992 | /* ===== Iframe load → rescale (catches initial size) ===== */ |
| 993 | iframeCur.addEventListener('load', function(){ rescaleIframe(iframeCur); }); |
| 994 | iframeNxt.addEventListener('load', function(){ rescaleIframe(iframeNxt); }); |
| 995 | |
| 996 | /* ===== Init ===== |
| 997 | * Load each iframe ONCE with the deck file. After they post |
| 998 | * 'preview-ready', all subsequent navigation is via postMessage |
| 999 | * (smooth, no reload, no flicker). |
| 1000 | */ |
| 1001 | try { |
| 1002 | iframeCur.src = deckUrl + '?preview=' + (idx + 1); |
| 1003 | if (idx + 1 < total) iframeNxt.src = deckUrl + '?preview=' + (idx + 2); |
| 1004 | /* Initialize notes/timer/count without touching iframes */ |
| 1005 | var m = slideMeta[idx] || {}; |
| 1006 | notesBody.innerHTML = m.notes || '<span class="empty">（这一页还没有逐字稿）</span>'; |
| 1007 | curMeta.textContent = (idx + 1) + '/' + total; |
| 1008 | nxtMeta.textContent = (idx + 2) + '/' + total; |
| 1009 | timerCount.textContent = (idx + 1) + ' / ' + total; |
| 1010 | } catch (e) { |
| 1011 | /* Report it, but never let it blank the cards. */ |
| 1012 | if (window.console && console.error) console.error('[html-ppt] presenter init:', e); |
| 1013 | } |
| 1014 | })(); |
| 1015 | </` + `script> |
| 1016 | </body></html>`; |
| 1017 | } |
| 1018 | |
| 1019 | function fullscreen(){ const el=document.documentElement; |
| 1020 | if (!document.fullscreenElement) el.requestFullscreen&&el.requestFullscreen(); |
| 1021 | else document.exitFullscreen&&document.exitFullscreen(); |
| 1022 | } |
| 1023 | |
| 1024 | // theme cycling |
| 1025 | const root = document.documentElement; |
| 1026 | const themesAttr = root.getAttribute('data-themes') || document.body.getAttribute('data-themes'); |
| 1027 | const themes = themesAttr ? themesAttr.split(',').map(s=>s.trim()).filter(Boolean) : []; |
| 1028 | let themeIdx = 0; |
| 1029 | |
| 1030 | // Auto-detect theme base path from existing <link id="theme-link"> |
| 1031 | let themeBase = root.getAttribute('data-theme-base'); |
| 1032 | if (!themeBase) { |
| 1033 | const existingLink = document.getElementById('theme-link'); |
| 1034 | if (existingLink) { |
| 1035 | // el.getAttribute('href') gives the raw relative path written in HTML |
| 1036 | const rawHref = existingLink.getAttribute('href') || ''; |
| 1037 | const lastSlash = rawHref.lastIndexOf('/'); |
| 1038 | themeBase = lastSlash >= 0 ? rawHref.substring(0, lastSlash + 1) : 'assets/themes/'; |
| 1039 | } else { |
| 1040 | themeBase = 'assets/themes/'; |
| 1041 | } |
| 1042 | } |
| 1043 | |
| 1044 | function applyTheme(name) { |
| 1045 | let link = document.getElementById('theme-link'); |
| 1046 | if (!link) { |
| 1047 | link = document.createElement('link'); |
| 1048 | link.rel = 'stylesheet'; |
| 1049 | link.id = 'theme-link'; |
| 1050 | document.head.appendChild(link); |
| 1051 | } |
| 1052 | link.href = themeBase + name + '.css'; |
| 1053 | root.setAttribute('data-theme', name); |
| 1054 | const ind = document.querySelector('.theme-indicator'); |
| 1055 | if (ind) ind.textContent = name; |
| 1056 | } |
| 1057 | function cycleTheme(fromRemote){ |
| 1058 | if (!themes.length) return; |
| 1059 | themeIdx = (themeIdx+1) % themes.length; |
| 1060 | const name = themes[themeIdx]; |
| 1061 | applyTheme(name); |
| 1062 | /* Broadcast to other window (audience ↔ presenter) */ |
| 1063 | if (!fromRemote && bc) bc.postMessage({ type: 'theme', name: name }); |
| 1064 | } |
| 1065 | |
| 1066 | // animation cycling on current slide |
| 1067 | let animIdx = 0; |
| 1068 | function cycleAnim(){ |
| 1069 | animIdx = (animIdx+1) % ANIMS.length; |
| 1070 | const a = ANIMS[animIdx]; |
| 1071 | const target = slides[idx].querySelector('[data-anim-target]') || slides[idx]; |
| 1072 | ANIMS.forEach(x => target.classList.remove('anim-'+x)); |
| 1073 | void target.offsetWidth; |
| 1074 | target.classList.add('anim-'+a); |
| 1075 | target.setAttribute('data-anim', a); |
| 1076 | const ind = document.querySelector('.anim-indicator'); |
| 1077 | if (ind) ind.textContent = a; |
| 1078 | } |
| 1079 | |
| 1080 | document.addEventListener('keydown', function (e) { |
| 1081 | if (e.metaKey||e.ctrlKey||e.altKey) return; |
| 1082 | switch (e.key) { |
| 1083 | case 'ArrowRight': case ' ': case 'PageDown': case 'Enter': go(idx+1); e.preventDefault(); break; |
| 1084 | case 'ArrowLeft': case 'PageUp': case 'Backspace': go(idx-1); e.preventDefault(); break; |
| 1085 | case 'Home': go(0); break; |
| 1086 | case 'End': go(total-1); break; |
| 1087 | case 'f': case 'F': fullscreen(); break; |
| 1088 | case 's': case 'S': openPresenterWindow(); break; |
| 1089 | case 'n': case 'N': toggleNotes(); break; |
| 1090 | case 'o': case 'O': toggleOverview(); break; |
| 1091 | case 't': case 'T': cycleTheme(); break; |
| 1092 | case 'a': case 'A': cycleAnim(); break; |
| 1093 | case 'Escape': toggleOverview(false); toggleNotes(false); break; |
| 1094 | } |
| 1095 | }); |
| 1096 | |
| 1097 | /* ===== Touch navigation ===== |
| 1098 | * Phones have no arrow keys (#15). Swipe left for next, right for prev. |
| 1099 | * |
| 1100 | * Deliberately passive: we never call preventDefault, so pinch-zoom and |
| 1101 | * any native scrolling keep working and the browser is free to scroll |
| 1102 | * while we are still deciding. A gesture only counts as a swipe if it is |
| 1103 | * single-finger, clearly horizontal, long enough and quick enough — |
| 1104 | * otherwise it falls through untouched. |
| 1105 | */ |
| 1106 | (function initTouchNav(){ |
| 1107 | /* No capability sniffing on purpose. Touch listeners cost nothing on a |
| 1108 | device that never fires them, and `ontouchstart in window` / |
| 1109 | maxTouchPoints both misreport on touchscreen laptops and some |
| 1110 | tablets — a guard here would silently remove the feature on exactly |
| 1111 | the devices that need it. */ |
| 1112 | var SWIPE_MIN_PX = 50; // shorter than this is a tap or a wobble |
| 1113 | var SWIPE_RATIO = 1.5; // must be this much more horizontal than vertical |
| 1114 | var SWIPE_MAX_MS = 800; // slower than this is a drag, not a swipe |
| 1115 | |
| 1116 | var x0 = 0, y0 = 0, t0 = 0, tracking = false; |
| 1117 | |
| 1118 | function interactive(target) { |
| 1119 | if (!target || !target.closest) return false; |
| 1120 | /* Don't steal the gesture from the overview grid, the notes drawer, |
| 1121 | or anything the author made scrollable or tappable. */ |
| 1122 | return !!target.closest('.overview, .notes-overlay, a, button, input, textarea, select, [data-no-swipe]'); |
| 1123 | } |
| 1124 | |
| 1125 | document.addEventListener('touchstart', function(e){ |
| 1126 | if (e.touches.length !== 1 || interactive(e.target)) { tracking = false; return; } |
| 1127 | x0 = e.touches[0].clientX; |
| 1128 | y0 = e.touches[0].clientY; |
| 1129 | t0 = Date.now(); |
| 1130 | tracking = true; |
| 1131 | }, { passive: true }); |
| 1132 | |
| 1133 | document.addEventListener('touchmove', function(e){ |
| 1134 | /* A second finger means pinch-zoom — abandon the swipe. */ |
| 1135 | if (e.touches.length > 1) tracking = false; |
| 1136 | }, { passive: true }); |
| 1137 | |
| 1138 | document.addEventListener('touchend', function(e){ |
| 1139 | if (!tracking) return; |
| 1140 | tracking = false; |
| 1141 | var t = e.changedTouches && e.changedTouches[0]; |
| 1142 | if (!t) return; |
| 1143 | if (Date.now() - t0 > SWIPE_MAX_MS) return; |
| 1144 | var dx = t.clientX - x0, dy = t.clientY - y0; |
| 1145 | if (Math.abs(dx) < SWIPE_MIN_PX) return; |
| 1146 | if (Math.abs(dx) < Math.abs(dy) * SWIPE_RATIO) return; |
| 1147 | go(dx < 0 ? idx + 1 : idx - 1); |
| 1148 | }, { passive: true }); |
| 1149 | |
| 1150 | document.addEventListener('touchcancel', function(){ tracking = false; }, { passive: true }); |
| 1151 | })(); |
| 1152 | |
| 1153 | // hash deep-link |
| 1154 | function fromHash(){ |
| 1155 | const m = /^#\/(\d+)/.exec(location.hash||''); |
| 1156 | if (m) go(Math.max(0, parseInt(m[1],10)-1)); |
| 1157 | } |
| 1158 | window.addEventListener('hashchange', fromHash); |
| 1159 | fromHash(); |
| 1160 | go(idx); |
| 1161 | }); |
| 1162 | })(); |
| 1163 |