htmlewislulu-html-ppt-skill/assets/runtime.js

822 lines
31 KiB
JavaScript

/* html-ppt :: runtime.js
* Keyboard-driven deck runtime. Zero dependencies.
*
* Features:
* ← → / space / PgUp PgDn / Home End navigation
* F fullscreen
* S presenter mode (opens a NEW WINDOW with current/next slide preview + notes + timer)
* The original window stays as audience view, synced via BroadcastChannel.
* Slide previews use CSS transform:scale() at design resolution for pixel-perfect layout.
* N quick notes overlay (bottom drawer)
* O slide overview grid
* T cycle themes (reads data-themes on <html> or <body>)
* A cycle demo animation on current slide
* URL hash #/N deep-link to slide N (1-based)
* Progress bar auto-managed
*/
(function () {
'use strict';
const ANIMS = ['fade-up','fade-down','fade-left','fade-right','rise-in','drop-in',
'zoom-pop','blur-in','glitch-in','typewriter','neon-glow','shimmer-sweep',
'gradient-flow','stagger-list','counter-up','path-draw','parallax-tilt',
'card-flip-3d','cube-rotate-3d','page-turn-3d','perspective-zoom',
'marquee-scroll','kenburns','confetti-burst','spotlight','morph-shape','ripple-reveal'];
function ready(fn){ if(document.readyState!='loading')fn(); else document.addEventListener('DOMContentLoaded',fn);}
/* ========== Parse URL for preview-only mode ==========
* When loaded as iframe.src = "index.html?preview=3", runtime enters a
* locked single-slide mode: only slide N is visible, no chrome, no keys,
* no hash updates. This is how the presenter window shows pixel-perfect
* previews — by loading the actual deck file in an iframe and telling it
* to display only a specific slide.
*/
function getPreviewIdx() {
const m = /[?&]preview=(\d+)/.exec(location.search || '');
return m ? parseInt(m[1], 10) - 1 : -1;
}
ready(function () {
const deck = document.querySelector('.deck');
if (!deck) return;
const slides = Array.from(deck.querySelectorAll('.slide'));
if (!slides.length) return;
const previewOnlyIdx = getPreviewIdx();
const isPreviewMode = previewOnlyIdx >= 0 && previewOnlyIdx < slides.length;
/* ===== Preview-only mode: show one slide, hide everything else ===== */
if (isPreviewMode) {
function showSlide(i) {
slides.forEach((s, j) => {
const active = (j === i);
s.classList.toggle('is-active', active);
s.style.display = active ? '' : 'none';
if (active) {
s.style.opacity = '1';
s.style.transform = 'none';
s.style.pointerEvents = 'auto';
}
});
}
showSlide(previewOnlyIdx);
/* Hide chrome that the presenter shouldn't see in preview */
const hideSel = '.progress-bar, .notes-overlay, .overview, .notes, aside.notes, .speaker-notes';
document.querySelectorAll(hideSel).forEach(el => { el.style.display = 'none'; });
document.documentElement.setAttribute('data-preview', '1');
document.body.setAttribute('data-preview', '1');
/* Listen for postMessage from parent presenter window to switch slides
* WITHOUT reloading — this eliminates flicker during navigation. */
window.addEventListener('message', function(e) {
if (!e.data || e.data.type !== 'preview-goto') return;
const n = parseInt(e.data.idx, 10);
if (n >= 0 && n < slides.length) showSlide(n);
});
/* Signal to parent that preview iframe is ready */
try { window.parent && window.parent.postMessage({ type: 'preview-ready' }, '*'); } catch(e) {}
return;
}
let idx = 0;
const total = slides.length;
/* ===== BroadcastChannel for presenter sync ===== */
const CHANNEL_NAME = 'html-ppt-presenter-' + location.pathname;
let bc;
try { bc = new BroadcastChannel(CHANNEL_NAME); } catch(e) { bc = null; }
// Are we running inside the presenter popup? (legacy flag, now unused)
const isPresenterWindow = false;
/* ===== progress bar ===== */
let bar = document.querySelector('.progress-bar');
if (!bar) {
bar = document.createElement('div');
bar.className = 'progress-bar';
bar.innerHTML = '<span></span>';
document.body.appendChild(bar);
}
const barFill = bar.querySelector('span');
/* ===== notes overlay (N key) ===== */
let notes = document.querySelector('.notes-overlay');
if (!notes) {
notes = document.createElement('div');
notes.className = 'notes-overlay';
document.body.appendChild(notes);
}
/* ===== overview grid (O key) ===== */
let overview = document.querySelector('.overview');
if (!overview) {
overview = document.createElement('div');
overview.className = 'overview';
slides.forEach((s, i) => {
const t = document.createElement('div');
t.className = 'thumb';
const title = s.getAttribute('data-title') ||
(s.querySelector('h1,h2,h3')||{}).textContent || ('Slide '+(i+1));
t.innerHTML = '<div class="n">'+(i+1)+'</div><div class="t">'+title.trim().slice(0,80)+'</div>';
t.addEventListener('click', () => { go(i); toggleOverview(false); });
overview.appendChild(t);
});
document.body.appendChild(overview);
}
/* ===== navigation ===== */
function go(n, fromRemote){
n = Math.max(0, Math.min(total-1, n));
slides.forEach((s,i) => {
s.classList.toggle('is-active', i===n);
s.classList.toggle('is-prev', i<n);
});
idx = n;
barFill.style.width = ((n+1)/total*100)+'%';
const numEl = document.querySelector('.slide-number');
if (numEl) { numEl.setAttribute('data-current', n+1); numEl.setAttribute('data-total', total); }
// notes (bottom overlay)
const note = slides[n].querySelector('.notes, aside.notes, .speaker-notes');
notes.innerHTML = note ? note.innerHTML : '';
// hash
const hashTarget = '#/'+(n+1);
if (location.hash !== hashTarget && !isPresenterWindow) {
history.replaceState(null,'', hashTarget);
}
// re-trigger entry animations
slides[n].querySelectorAll('[data-anim]').forEach(el => {
const a = el.getAttribute('data-anim');
el.classList.remove('anim-'+a);
void el.offsetWidth;
el.classList.add('anim-'+a);
});
// counter-up
slides[n].querySelectorAll('.counter').forEach(el => {
const target = parseFloat(el.getAttribute('data-to')||el.textContent);
const dur = parseInt(el.getAttribute('data-dur')||'1200',10);
const start = performance.now();
const from = 0;
function tick(now){
const t = Math.min(1,(now-start)/dur);
const v = from + (target-from)*(1-Math.pow(1-t,3));
el.textContent = (target % 1 === 0) ? Math.round(v) : v.toFixed(1);
if (t<1) requestAnimationFrame(tick);
}
requestAnimationFrame(tick);
});
// Broadcast to other window (audience ↔ presenter)
if (!fromRemote && bc) {
bc.postMessage({ type: 'go', idx: n });
}
}
/* ===== listen for remote navigation ===== */
if (bc) {
bc.onmessage = function(e) {
if (e.data && e.data.type === 'go' && typeof e.data.idx === 'number') {
go(e.data.idx, true);
}
};
}
function toggleNotes(force){ notes.classList.toggle('open', force!==undefined?force:!notes.classList.contains('open')); }
function toggleOverview(force){ overview.classList.toggle('open', force!==undefined?force:!overview.classList.contains('open')); }
/* ========== PRESENTER MODE — Magnetic-card popup window ========== */
/* Opens a new window with 4 draggable, resizable cards:
* CURRENT — iframe(?preview=N) pixel-perfect preview of current slide
* NEXT — iframe(?preview=N+1) pixel-perfect preview of next slide
* SCRIPT — large speaker notes (逐字稿)
* TIMER — elapsed timer + page counter + controls
* Cards remember position/size in localStorage.
* Two windows sync via BroadcastChannel.
*/
let presenterWin = null;
function openPresenterWindow() {
if (presenterWin && !presenterWin.closed) {
presenterWin.focus();
return;
}
// Build absolute URL of THIS deck file (without hash/query)
const deckUrl = location.protocol + '//' + location.host + location.pathname;
// Collect slide titles + notes (HTML strings)
const slideMeta = slides.map((s, i) => {
const note = s.querySelector('.notes, aside.notes, .speaker-notes');
return {
title: s.getAttribute('data-title') ||
(s.querySelector('h1,h2,h3')||{}).textContent || ('Slide '+(i+1)),
notes: note ? note.innerHTML : ''
};
});
const presenterHTML = buildPresenterHTML(deckUrl, slideMeta, total, idx, CHANNEL_NAME);
presenterWin = window.open('', 'html-ppt-presenter', 'width=1280,height=820,menubar=no,toolbar=no');
if (!presenterWin) {
alert('请允许弹出窗口以使用演讲者视图');
return;
}
presenterWin.document.open();
presenterWin.document.write(presenterHTML);
presenterWin.document.close();
}
function buildPresenterHTML(deckUrl, slideMeta, total, startIdx, channelName) {
const metaJSON = JSON.stringify(slideMeta);
const deckUrlJSON = JSON.stringify(deckUrl);
const channelJSON = JSON.stringify(channelName);
const storageKey = 'html-ppt-presenter:' + location.pathname;
// Build the document as a single template string for clarity
return `<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<title>Presenter View</title>
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body {
width: 100%; height: 100%; overflow: hidden;
background: #1a1d24;
background-image:
radial-gradient(circle at 20% 30%, rgba(88,166,255,.04), transparent 50%),
radial-gradient(circle at 80% 70%, rgba(188,140,255,.04), transparent 50%);
color: #e6edf3;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", sans-serif;
}
/* Stage: positioned area where cards live */
#stage { position: absolute; inset: 0; overflow: hidden; }
/* Magnetic card */
.pcard {
position: absolute;
background: #0d1117;
border: 1px solid rgba(255,255,255,.1);
border-radius: 12px;
box-shadow: 0 8px 32px rgba(0,0,0,.45), 0 0 0 1px rgba(255,255,255,.02);
display: flex; flex-direction: column;
overflow: hidden;
min-width: 180px; min-height: 100px;
transition: box-shadow .2s, border-color .2s;
}
.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; }
.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; }
.pcard:hover { border-color: rgba(88,166,255,.3); }
/* Card header (drag handle) */
.pcard-head {
display: flex; align-items: center; gap: 10px;
padding: 8px 12px;
background: rgba(255,255,255,.04);
border-bottom: 1px solid rgba(255,255,255,.06);
cursor: move;
user-select: none;
flex-shrink: 0;
}
.pcard-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--dot-color, #58a6ff); flex-shrink: 0; }
.pcard-title {
font-size: 11px; letter-spacing: .15em; text-transform: uppercase;
font-weight: 700; color: #8b949e; flex: 1;
}
.pcard-meta { font-size: 11px; color: #6e7681; }
/* Card body */
.pcard-body { flex: 1; position: relative; overflow: hidden; min-height: 0; }
/* Preview cards (CURRENT/NEXT) — iframe-based pixel-perfect render */
.pcard-preview .pcard-body { background: #000; }
.pcard-preview iframe {
position: absolute; top: 0; left: 0;
width: 1920px; height: 1080px;
border: none;
transform-origin: top left;
pointer-events: none;
background: transparent;
}
.pcard-preview .preview-end {
position: absolute; inset: 0;
display: flex; align-items: center; justify-content: center;
color: #484f58; font-size: 14px; letter-spacing: .12em;
}
/* Notes card */
.pcard-notes .pcard-body {
padding: 14px 18px;
overflow-y: auto;
font-size: 18px; line-height: 1.75;
color: #d0d7de;
font-family: "Noto Sans SC", -apple-system, sans-serif;
}
.pcard-notes .pcard-body p { margin: 0 0 .7em 0; }
.pcard-notes .pcard-body strong { color: #f0883e; }
.pcard-notes .pcard-body em { color: #58a6ff; font-style: normal; }
.pcard-notes .pcard-body code {
font-family: "SF Mono", monospace; font-size: .9em;
background: rgba(255,255,255,.08); padding: 1px 6px; border-radius: 4px;
}
.pcard-notes .empty { color: #484f58; font-style: italic; }
/* Timer card */
.pcard-timer .pcard-body {
display: flex; flex-direction: column; gap: 14px;
padding: 18px 20px; justify-content: center;
}
.timer-display {
font-family: "SF Mono", "JetBrains Mono", monospace;
font-size: 42px; font-weight: 700;
color: #3fb950;
letter-spacing: .04em;
line-height: 1;
}
.timer-row {
display: flex; align-items: center; gap: 12px;
font-size: 14px; color: #8b949e;
}
.timer-row .label { font-size: 10px; letter-spacing: .15em; text-transform: uppercase; color: #6e7681; }
.timer-row .val { color: #e6edf3; font-weight: 600; font-family: "SF Mono", monospace; }
.timer-controls { display: flex; gap: 8px; flex-wrap: wrap; }
.timer-btn {
background: rgba(255,255,255,.06);
border: 1px solid rgba(255,255,255,.1);
color: #e6edf3;
padding: 6px 12px;
border-radius: 6px;
font-size: 12px;
cursor: pointer;
font-family: inherit;
}
.timer-btn:hover { background: rgba(88,166,255,.15); border-color: #58a6ff; }
.timer-btn:active { transform: translateY(1px); }
/* Resize handle */
.pcard-resize {
position: absolute; right: 0; bottom: 0;
width: 18px; height: 18px;
cursor: nwse-resize;
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%);
z-index: 5;
}
.pcard-resize:hover { background: linear-gradient(135deg, transparent 50%, #58a6ff 50%, #58a6ff 60%, transparent 60%, transparent 70%, #58a6ff 70%, #58a6ff 80%, transparent 80%); }
/* Bottom hint bar */
.hint-bar {
position: fixed; bottom: 0; left: 0; right: 0;
background: rgba(0,0,0,.6);
backdrop-filter: blur(10px);
border-top: 1px solid rgba(255,255,255,.08);
padding: 6px 16px;
font-size: 11px; color: #8b949e;
display: flex; gap: 18px; align-items: center;
z-index: 1000;
}
.hint-bar kbd {
background: rgba(255,255,255,.08);
padding: 1px 6px; border-radius: 3px;
font-family: "SF Mono", monospace;
font-size: 10px;
border: 1px solid rgba(255,255,255,.1);
color: #e6edf3;
}
.hint-bar .reset-layout {
margin-left: auto;
background: transparent; border: 1px solid rgba(255,255,255,.15);
color: #8b949e; padding: 3px 10px; border-radius: 4px;
font-size: 11px; cursor: pointer; font-family: inherit;
}
.hint-bar .reset-layout:hover { background: rgba(248,81,73,.15); border-color: #f85149; color: #f85149; }
body.is-dragging-card * { user-select: none !important; }
body.is-dragging-card iframe { pointer-events: none !important; }
</style>
</head>
<body>
<div id="stage">
<div class="pcard pcard-preview" id="card-cur" style="--dot-color:#58a6ff">
<div class="pcard-head" data-drag>
<span class="pcard-dot"></span>
<span class="pcard-title">CURRENT</span>
<span class="pcard-meta" id="cur-meta">—</span>
</div>
<div class="pcard-body"><iframe id="iframe-cur"></iframe></div>
<div class="pcard-resize" data-resize></div>
</div>
<div class="pcard pcard-preview" id="card-nxt" style="--dot-color:#bc8cff">
<div class="pcard-head" data-drag>
<span class="pcard-dot"></span>
<span class="pcard-title">NEXT</span>
<span class="pcard-meta" id="nxt-meta">—</span>
</div>
<div class="pcard-body"><iframe id="iframe-nxt"></iframe></div>
<div class="pcard-resize" data-resize></div>
</div>
<div class="pcard pcard-notes" id="card-notes" style="--dot-color:#f0883e">
<div class="pcard-head" data-drag>
<span class="pcard-dot"></span>
<span class="pcard-title">SPEAKER SCRIPT · 逐字稿</span>
</div>
<div class="pcard-body" id="notes-body"></div>
<div class="pcard-resize" data-resize></div>
</div>
<div class="pcard pcard-timer" id="card-timer" style="--dot-color:#3fb950">
<div class="pcard-head" data-drag>
<span class="pcard-dot"></span>
<span class="pcard-title">TIMER</span>
</div>
<div class="pcard-body">
<div class="timer-display" id="timer-display">00:00</div>
<div class="timer-row">
<span class="label">Slide</span>
<span class="val" id="timer-count">1 / ${total}</span>
</div>
<div class="timer-controls">
<button class="timer-btn" id="btn-prev">← Prev</button>
<button class="timer-btn" id="btn-next">Next →</button>
<button class="timer-btn" id="btn-reset">⏱ Reset</button>
</div>
</div>
<div class="pcard-resize" data-resize></div>
</div>
</div>
<div class="hint-bar">
<span><kbd>← →</kbd> 翻页</span>
<span><kbd>R</kbd> 重置计时</span>
<span><kbd>Esc</kbd> 关闭</span>
<span style="color:#6e7681">拖动卡片头部移动 · 拖动右下角调整大小</span>
<button class="reset-layout" id="reset-layout">重置布局</button>
</div>
<script>
(function(){
var slideMeta = ${metaJSON};
var total = ${total};
var idx = ${startIdx};
var deckUrl = ${deckUrlJSON};
var STORAGE_KEY = ${JSON.stringify(storageKey)};
var bc;
try { bc = new BroadcastChannel(${channelJSON}); } catch(e) {}
var iframeCur = document.getElementById('iframe-cur');
var iframeNxt = document.getElementById('iframe-nxt');
var notesBody = document.getElementById('notes-body');
var curMeta = document.getElementById('cur-meta');
var nxtMeta = document.getElementById('nxt-meta');
var timerDisplay = document.getElementById('timer-display');
var timerCount = document.getElementById('timer-count');
/* ===== Default card layout ===== */
function defaultLayout() {
var w = window.innerWidth;
var h = window.innerHeight - 36; /* leave room for hint bar */
return {
'card-cur': { x: 16, y: 16, w: Math.round(w*0.55) - 24, h: Math.round(h*0.62) - 16 },
'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 },
'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 },
'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 }
};
}
/* ===== Apply / save / restore layout ===== */
function applyLayout(layout) {
Object.keys(layout).forEach(function(id){
var el = document.getElementById(id);
var l = layout[id];
if (el && l) {
el.style.left = l.x + 'px';
el.style.top = l.y + 'px';
el.style.width = l.w + 'px';
el.style.height = l.h + 'px';
}
});
rescaleAll();
}
function readLayout() {
try {
var saved = localStorage.getItem(STORAGE_KEY);
if (saved) return JSON.parse(saved);
} catch(e) {}
return defaultLayout();
}
function saveLayout() {
var layout = {};
['card-cur','card-nxt','card-notes','card-timer'].forEach(function(id){
var el = document.getElementById(id);
if (el) {
layout[id] = {
x: parseInt(el.style.left,10) || 0,
y: parseInt(el.style.top,10) || 0,
w: parseInt(el.style.width,10) || 300,
h: parseInt(el.style.height,10) || 200
};
}
});
try { localStorage.setItem(STORAGE_KEY, JSON.stringify(layout)); } catch(e) {}
}
/* ===== iframe rescale to fit card body ===== */
function rescaleIframe(iframe) {
if (!iframe || iframe.style.display === 'none') return;
var body = iframe.parentElement;
var cw = body.clientWidth, ch = body.clientHeight;
if (!cw || !ch) return;
var s = Math.min(cw / 1920, ch / 1080);
iframe.style.transform = 'scale(' + s + ')';
/* Center the scaled iframe in the body */
var sw = 1920 * s, sh = 1080 * s;
iframe.style.left = Math.max(0, (cw - sw) / 2) + 'px';
iframe.style.top = Math.max(0, (ch - sh) / 2) + 'px';
}
function rescaleAll() {
rescaleIframe(iframeCur);
rescaleIframe(iframeNxt);
}
window.addEventListener('resize', rescaleAll);
/* ===== Drag (move card by header) ===== */
document.querySelectorAll('[data-drag]').forEach(function(handle){
handle.addEventListener('mousedown', function(e){
if (e.button !== 0) return;
var card = handle.closest('.pcard');
if (!card) return;
e.preventDefault();
card.classList.add('dragging');
document.body.classList.add('is-dragging-card');
var startX = e.clientX, startY = e.clientY;
var startL = parseInt(card.style.left,10) || 0;
var startT = parseInt(card.style.top,10) || 0;
function onMove(ev){
var nx = Math.max(0, Math.min(window.innerWidth - 100, startL + ev.clientX - startX));
var ny = Math.max(0, Math.min(window.innerHeight - 50, startT + ev.clientY - startY));
card.style.left = nx + 'px';
card.style.top = ny + 'px';
}
function onUp(){
card.classList.remove('dragging');
document.body.classList.remove('is-dragging-card');
document.removeEventListener('mousemove', onMove);
document.removeEventListener('mouseup', onUp);
saveLayout();
}
document.addEventListener('mousemove', onMove);
document.addEventListener('mouseup', onUp);
});
});
/* ===== Resize (drag bottom-right corner) ===== */
document.querySelectorAll('[data-resize]').forEach(function(handle){
handle.addEventListener('mousedown', function(e){
if (e.button !== 0) return;
var card = handle.closest('.pcard');
if (!card) return;
e.preventDefault(); e.stopPropagation();
card.classList.add('resizing');
document.body.classList.add('is-dragging-card');
var startX = e.clientX, startY = e.clientY;
var startW = parseInt(card.style.width,10) || card.offsetWidth;
var startH = parseInt(card.style.height,10) || card.offsetHeight;
function onMove(ev){
var nw = Math.max(180, startW + ev.clientX - startX);
var nh = Math.max(100, startH + ev.clientY - startY);
card.style.width = nw + 'px';
card.style.height = nh + 'px';
if (card.querySelector('iframe')) rescaleIframe(card.querySelector('iframe'));
}
function onUp(){
card.classList.remove('resizing');
document.body.classList.remove('is-dragging-card');
document.removeEventListener('mousemove', onMove);
document.removeEventListener('mouseup', onUp);
rescaleAll();
saveLayout();
}
document.addEventListener('mousemove', onMove);
document.addEventListener('mouseup', onUp);
});
});
/* ===== Preview iframe ready tracking =====
* Each iframe loads the deck ONCE with ?preview=1 on init. Subsequent
* slide changes are sent via postMessage('preview-goto') so the iframe
* just toggles visibility of a different .slide — no reload, no flicker.
*/
var iframeReady = { cur: false, nxt: false };
window.addEventListener('message', function(e) {
if (!e.data || e.data.type !== 'preview-ready') return;
if (e.source === iframeCur.contentWindow) {
iframeReady.cur = true;
postPreviewGoto(iframeCur, idx);
rescaleIframe(iframeCur);
} else if (e.source === iframeNxt.contentWindow) {
iframeReady.nxt = true;
postPreviewGoto(iframeNxt, idx + 1 < total ? idx + 1 : idx);
rescaleIframe(iframeNxt);
}
});
function postPreviewGoto(iframe, n) {
try {
iframe.contentWindow.postMessage({ type: 'preview-goto', idx: n }, '*');
} catch(e) {}
}
/* ===== Update content =====
* Smooth (no-reload) navigation: send postMessage to iframes instead of
* resetting src. Iframes stay loaded, just switch visible .slide.
*/
function update(n) {
n = Math.max(0, Math.min(total - 1, n));
idx = n;
/* Current preview — postMessage (smooth) */
if (iframeReady.cur) postPreviewGoto(iframeCur, n);
curMeta.textContent = (n + 1) + '/' + total;
/* Next preview */
if (n + 1 < total) {
iframeNxt.style.display = '';
var endEl = document.querySelector('#card-nxt .preview-end');
if (endEl) endEl.remove();
if (iframeReady.nxt) postPreviewGoto(iframeNxt, n + 1);
nxtMeta.textContent = (n + 2) + '/' + total;
} else {
iframeNxt.style.display = 'none';
var body = document.querySelector('#card-nxt .pcard-body');
if (body && !body.querySelector('.preview-end')) {
var end = document.createElement('div');
end.className = 'preview-end';
end.textContent = '— END OF DECK —';
body.appendChild(end);
}
nxtMeta.textContent = 'END';
}
/* Notes */
var note = slideMeta[n].notes;
notesBody.innerHTML = note || '<span class="empty">(这一页还没有逐字稿)</span>';
/* Timer count */
timerCount.textContent = (n + 1) + ' / ' + total;
}
/* ===== Timer ===== */
var tStart = Date.now();
setInterval(function(){
var s = Math.floor((Date.now() - tStart) / 1000);
var mm = String(Math.floor(s/60)).padStart(2,'0');
var ss = String(s%60).padStart(2,'0');
timerDisplay.textContent = mm + ':' + ss;
}, 1000);
function resetTimer(){ tStart = Date.now(); timerDisplay.textContent = '00:00'; }
/* ===== BroadcastChannel sync ===== */
if (bc) {
bc.onmessage = function(e){
if (e.data && e.data.type === 'go') update(e.data.idx);
};
}
function go(n) {
update(n);
if (bc) bc.postMessage({ type: 'go', idx: idx });
}
/* ===== Buttons ===== */
document.getElementById('btn-prev').addEventListener('click', function(){ go(idx - 1); });
document.getElementById('btn-next').addEventListener('click', function(){ go(idx + 1); });
document.getElementById('btn-reset').addEventListener('click', resetTimer);
document.getElementById('reset-layout').addEventListener('click', function(){
if (confirm('恢复默认卡片布局?')) {
try { localStorage.removeItem(STORAGE_KEY); } catch(e){}
applyLayout(defaultLayout());
}
});
/* ===== Keyboard ===== */
document.addEventListener('keydown', function(e){
if (e.metaKey || e.ctrlKey || e.altKey) return;
switch(e.key) {
case 'ArrowRight': case ' ': case 'PageDown': go(idx + 1); e.preventDefault(); break;
case 'ArrowLeft': case 'PageUp': go(idx - 1); e.preventDefault(); break;
case 'Home': go(0); break;
case 'End': go(total - 1); break;
case 'r': case 'R': resetTimer(); break;
case 'Escape': window.close(); break;
}
});
/* ===== Iframe load → rescale (catches initial size) ===== */
iframeCur.addEventListener('load', function(){ rescaleIframe(iframeCur); });
iframeNxt.addEventListener('load', function(){ rescaleIframe(iframeNxt); });
/* ===== Init =====
* Load each iframe ONCE with the deck file. After they post
* 'preview-ready', all subsequent navigation is via postMessage
* (smooth, no reload, no flicker).
*/
applyLayout(readLayout());
iframeCur.src = deckUrl + '?preview=' + (idx + 1);
if (idx + 1 < total) iframeNxt.src = deckUrl + '?preview=' + (idx + 2);
/* Initialize notes/timer/count without touching iframes */
notesBody.innerHTML = slideMeta[idx].notes || '<span class="empty">(这一页还没有逐字稿)</span>';
curMeta.textContent = (idx + 1) + '/' + total;
nxtMeta.textContent = (idx + 2) + '/' + total;
timerCount.textContent = (idx + 1) + ' / ' + total;
})();
</` + `script>
</body></html>`;
}
function fullscreen(){ const el=document.documentElement;
if (!document.fullscreenElement) el.requestFullscreen&&el.requestFullscreen();
else document.exitFullscreen&&document.exitFullscreen();
}
// theme cycling
const root = document.documentElement;
const themesAttr = root.getAttribute('data-themes') || document.body.getAttribute('data-themes');
const themes = themesAttr ? themesAttr.split(',').map(s=>s.trim()).filter(Boolean) : [];
let themeIdx = 0;
// Auto-detect theme base path from existing <link id="theme-link">
let themeBase = root.getAttribute('data-theme-base');
if (!themeBase) {
const existingLink = document.getElementById('theme-link');
if (existingLink) {
// el.getAttribute('href') gives the raw relative path written in HTML
const rawHref = existingLink.getAttribute('href') || '';
const lastSlash = rawHref.lastIndexOf('/');
themeBase = lastSlash >= 0 ? rawHref.substring(0, lastSlash + 1) : 'assets/themes/';
} else {
themeBase = 'assets/themes/';
}
}
function cycleTheme(){
if (!themes.length) return;
themeIdx = (themeIdx+1) % themes.length;
const name = themes[themeIdx];
let link = document.getElementById('theme-link');
if (!link) {
link = document.createElement('link');
link.rel = 'stylesheet';
link.id = 'theme-link';
document.head.appendChild(link);
}
link.href = themeBase + name + '.css';
root.setAttribute('data-theme', name);
const ind = document.querySelector('.theme-indicator');
if (ind) ind.textContent = name;
}
// animation cycling on current slide
let animIdx = 0;
function cycleAnim(){
animIdx = (animIdx+1) % ANIMS.length;
const a = ANIMS[animIdx];
const target = slides[idx].querySelector('[data-anim-target]') || slides[idx];
ANIMS.forEach(x => target.classList.remove('anim-'+x));
void target.offsetWidth;
target.classList.add('anim-'+a);
target.setAttribute('data-anim', a);
const ind = document.querySelector('.anim-indicator');
if (ind) ind.textContent = a;
}
document.addEventListener('keydown', function (e) {
if (e.metaKey||e.ctrlKey||e.altKey) return;
switch (e.key) {
case 'ArrowRight': case ' ': case 'PageDown': case 'Enter': go(idx+1); e.preventDefault(); break;
case 'ArrowLeft': case 'PageUp': case 'Backspace': go(idx-1); e.preventDefault(); break;
case 'Home': go(0); break;
case 'End': go(total-1); break;
case 'f': case 'F': fullscreen(); break;
case 's': case 'S': openPresenterWindow(); break;
case 'n': case 'N': toggleNotes(); break;
case 'o': case 'O': toggleOverview(); break;
case 't': case 'T': cycleTheme(); break;
case 'a': case 'A': cycleAnim(); break;
case 'Escape': toggleOverview(false); toggleNotes(false); break;
}
});
// hash deep-link
function fromHash(){
const m = /^#\/(\d+)/.exec(location.hash||'');
if (m) go(Math.max(0, parseInt(m[1],10)-1));
}
window.addEventListener('hashchange', fromHash);
fromHash();
go(idx);
});
})();