jQuery(function ($){'use strict';// ---------- Config ---------- var REQUIRED_SECONDS=270;// 4.5 minutes var VIDEO_THRESHOLD=0.9;// 90% of the video must be watched var SAVE_EVERY_MS=3000;// throttle localStorage writes from timeupdate var MAX_TICK_SECONDS=2;;function store(key,val){try{if (val===undefined){var v=localStorage.getItem(key);return v===null ? (memStore[key]===undefined ? null:memStore[key]):v}localStorage.setItem(key,val)}catch (e){if (val !==undefined){memStore[key]=String(val)}else{return memStore[key]===undefined ? null:memStore[key]}}}// ---------- Best-effort user id so shared devices don't share progress ----------
function getUserId() {
try {
var o = window._tutorobject;
if (o && o.current_user && o.current_user.data && o.current_user.data.ID) {
return String(o.current_user.data.ID);
}
} catch (e) {}
return 'u';
}
// ---------- One-time styles for the timer bar ----------
if (!document.getElementById('lesson-timer-css')) {
var css = document.createElement('style');
css.id = 'lesson-timer-css';
css.textContent =
'#lesson-timer{background:#1e293b;color:#fff;padding:12px 20px;text-align:center;' +
'font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;font-size:14px;' +
'font-weight:600;border-radius:6px;margin-bottom:20px;display:flex;align-items:center;' +
'justify-content:space-between;box-shadow:0 4px 12px rgb(0 0 0 / .15);gap:8px}' +
'#lesson-timer .lt-exit{color:#94a3b8;text-decoration:none;font-size:13px;border:1px solid #475569;' +
'padding:4px 10px;border-radius:4px;background:#0f172a;white-space:nowrap}' +
'#lesson-timer .lt-msg{flex-grow:1;text-align:center}' +
'#lesson-timer .lt-spacer{width:80px}' +
'#lesson-timer .lt-ok{color:#38bdf8}#lesson-timer .lt-warn{color:#fbbf24}' +
'@media(max-width:600px){#lesson-timer .lt-spacer{display:none}}';
document.head.appendChild(css);
}
// ---------- iOS Safari: force inline playback as early as possible ----------
// Without playsinline, iPhone Safari jumps into native fullscreen on play.
function forceInline(v) {
if (!v || v.tagName !== 'VIDEO') return;
v.setAttribute('playsinline', '');
v.setAttribute('webkit-playsinline', '');
v.setAttribute('x5-playsinline', 'true');
try { v.playsInline = true; } catch (e) {}
}
$('video').each(function () { forceInline(this); });
// Catch videos that Tutor/Plyr inserts later; only inspects added nodes (cheap).
new MutationObserver(function (muts) {
for (var i = 0; i < muts.length; i++) {
var added = muts[i].addedNodes;
for (var j = 0; j < added.length; j++) {
var n = added[j];
if (n.nodeType !== 1) continue;
if (n.tagName === 'VIDEO') { forceInline(n); bindVideo(n); }
else if (n.querySelectorAll) {
var vs = n.querySelectorAll('video');
for (var k = 0; k < vs.length; k++) { forceInline(vs[k]); bindVideo(vs[k]); }
}
}
}
}).observe(document.documentElement, { childList: true, subtree: true });
// Backup: loadstart/play fire on media elements without bubbling, so use capture.
['loadstart', 'loadedmetadata', 'play'].forEach(function (evt) {
document.addEventListener(evt, function (e) {
if (e.target && e.target.tagName === 'VIDEO') { forceInline(e.target); }
}, true);
});
// ---------- Shared state for the current lesson ----------
var S = null; // set by initTutorLessonTimer
var interval = null;
function stopTimer() {
if (interval) { clearInterval(interval); interval = null; }
}
function fmt(seconds) {
var m = Math.floor(seconds / 60), s = Math.floor(seconds % 60);
return m + ':' + (s < 10 ? '0' + s : s);
}
function setNavLocked(locked) {
if (!S) return;
if (locked && !S.alreadyMet) {
S.$nav.css({ opacity: '0.3', 'pointer-events': 'none', cursor: 'not-allowed' });
} else {
S.$nav.css({ opacity: '', 'pointer-events': '', cursor: '' });
}
}
function setMessage(html) {
var $a = $('#timer-message-area');
if ($a.length) { $a.html(html); }
}
function countdownHtml() {
return '⏱ Required minimum study time remaining:' + fmt(Math.max(0, REQUIRED_SECONDS - S.activeTime)) + '';
}
// What the bar should say right now, based on current progress.
function defaultMessageHtml() {
if (!S) { return ''; }
if (S.alreadyMet) { return 'Lesson requirements already met. Review freely!'; }
if (timerRequirementMet()) {
return 'Timer complete! ' +
(videoRequirementMet() ? 'You may now proceed.' : 'Finish the video to proceed.') + '';
}
return countdownHtml();
}
// Show a temporary message, then return to the normal status text.
var msgToken = 0;
function flashMessage(html, ms) {
var token = ++msgToken;
setMessage(html);
setTimeout(function () {
if (token === msgToken && S) { setMessage(defaultMessageHtml()); }
}, ms || 5000);
}
function renderTopBar(html) {
$('#lesson-timer').remove();
var bar = '' +
'
' +
'
' + html + '
' +
'