Save baseline state with Disney+ seek adjustments and build identifier

extension/content.js

@@ -58,6 +58,262 @@
 
     // --- SHARED_EVENTS_INJECT_END ---
 
+
+
+    // Suppresses native event reporting after a programmatic action.
+
+    // Each entry is a per-type timer (key = 'playing'|'paused'|'seek').
+
+    // While a timer exists, matching native events are consumed and not relayed.
+
+    // Timers self-clean after 300ms if the native event never fires.
+
+    let _suppressTimers = {};
+
+
+
+    function _setSuppress(state) {
+
+        if (_suppressTimers[state]) clearTimeout(_suppressTimers[state]);
+
+        _suppressTimers[state] = setTimeout(() => {
+
+            delete _suppressTimers[state];
+
+        }, 300);
+
+    }
+
+
+
+    function _clearSuppress(state) {
+
+        if (_suppressTimers[state]) {
+
+            clearTimeout(_suppressTimers[state]);
+
+            delete _suppressTimers[state];
+
+        }
+
+    }
+
+
+
+    // --- Seek Relay Filtering ---
+
+    // Minimum seek delta (seconds) to report. Prevents HLS/DASH buffering micro-seeks
+
+    // from being relayed to peers as user-initiated seeks.
+
+    const MIN_SEEK_DELTA = 2.0;
+
+    let lastReportedSeekTime = null;  // last currentTime we relayed as a SEEK
+
+    let seekDebounceTimer = null;     // debounce timer for rapid seek events
+
+    let expectedSeekTime = null;      // strictly track programmatic seeks
+
+
+
+    const PAGE_API_SEEK_BRIDGE = 1;
+    let lastDisneyPlusTimelineCandidates = [];
+
+    function hostMatchesUrl(host, url) {
+        const normalized = String(url || '')
+            .replace(/^https?:\/\//i, '')
+            .split('/')[0]
+            .toLowerCase();
+        return normalized && (host === normalized || host.endsWith(`.${normalized}`));
+    }
+
+    function matchesPlayerUrls(urls) {
+        const host = window.location.hostname.toLowerCase();
+        return Array.isArray(urls) && urls.some(url => hostMatchesUrl(host, url));
+    }
+
+    function isDisneyPlusHost() {
+        return matchesPlayerUrls(['disneyplus.com']);
+    }
+
+    function getSeekableRange(video) {
+        try {
+            const ranges = video.seekable;
+            if (!ranges || ranges.length === 0) return null;
+            const current = video.currentTime;
+            let index = ranges.length - 1;
+            if (Number.isFinite(current)) {
+                for (let i = 0; i < ranges.length; i++) {
+                    if (current >= ranges.start(i) && current <= ranges.end(i)) {
+                        index = i;
+                        break;
+                    }
+                }
+            }
+            const start = ranges.start(index);
+            const end = ranges.end(index);
+            if (!Number.isFinite(start) || !Number.isFinite(end) || end <= start) return null;
+            return { start, end, duration: end - start };
+        } catch (_e) {
+            return null;
+        }
+    }
+
+    function parseClockTime(value) {
+        const parts = String(value || '').trim().split(':').map(Number);
+        if (parts.length < 2 || parts.length > 3 || parts.some(n => !Number.isFinite(n))) return null;
+        return parts.length === 2
+            ? parts[0] * 60 + parts[1]
+            : parts[0] * 3600 + parts[1] * 60 + parts[2];
+    }
+
+    function parseTimelineText(text) {
+        const matches = String(text || '').match(/\b\d{1,3}:\d{2}(?::\d{2})?\b/g);
+        if (!matches || matches.length < 2) return null;
+        const current = parseClockTime(matches[0]);
+        const duration = parseClockTime(matches[matches.length - 1]);
+        if (!Number.isFinite(current) || !Number.isFinite(duration) || duration < 60 || current > duration + 5) return null;
+        return { current, duration };
+    }
+
+    function getDisneyPlusUiTimeline() {
+        if (typeof document === 'undefined') return null;
+        const selectors = [
+            '[role="slider"]',
+            '[role="progressbar"]',
+            '[aria-valuenow][aria-valuemax]',
+            '[aria-valuetext]',
+            '[aria-label]',
+            '[data-testid]',
+            '[data-test]',
+            '[class*="time" i]',
+            '[class*="progress" i]',
+            'time',
+            'output',
+            'button',
+            'span',
+            'p',
+            'div'
+        ].join(',');
+        const nodes = Array.from(document.querySelectorAll(selectors)).slice(0, 2000);
+        const textParts = [];
+        const candidates = [];
+        let best = null;
+        let bestScore = -1;
+
+        function considerTimeline(parsed, source, weight = 0) {
+            if (!parsed) return;
+            const score = weight +
+                (parsed.duration >= 20 * 60 ? 200 : 0) +
+                (parsed.current > 0 ? 50 : 0) -
+                Math.abs((parsed.duration / 2) - parsed.current) / 100;
+            candidates.push({ ...parsed, source, score: Math.round(score) });
+            if (score > bestScore) {
+                bestScore = score;
+                best = parsed;
+            }
+        }
+
+        for (const node of nodes) {
+            const now = Number(node.getAttribute?.('aria-valuenow') ?? node.value);
+            const max = Number(node.getAttribute?.('aria-valuemax') ?? node.max);
+            if (Number.isFinite(now) && Number.isFinite(max) && max >= 60 && now >= 0 && now <= max + 5) {
+                considerTimeline({ current: now, duration: max }, 'aria-value', 300);
+            }
+
+            for (const attr of ['aria-valuetext', 'aria-label', 'title', 'data-testid', 'data-test']) {
+                const parsed = parseTimelineText(node.getAttribute?.(attr));
+                considerTimeline(parsed, attr, 200);
+            }
+
+            const text = String(node.textContent || '').trim();
+            if (text && text.length < 200) {
+                const parsed = parseTimelineText(text);
+                considerTimeline(parsed, 'text', 100);
+                textParts.push(text);
+            }
+        }
+
+        considerTimeline(parseTimelineText(textParts.join(' ')), 'combined-text', 25);
+        lastDisneyPlusTimelineCandidates = candidates
+            .sort((a, b) => b.score - a.score)
+            .slice(0, 8)
+            .map(({ source, current, duration }) => ({ source, current, duration }));
+        return best;
+    }
+
+    function getElementLabel(el) {
+        return [
+            el.getAttribute?.('aria-label'),
+            el.getAttribute?.('title'),
+            el.getAttribute?.('data-testid'),
+            el.getAttribute?.('data-test'),
+            el.textContent
+        ].filter(Boolean).join(' ').replace(/\s+/g, ' ').trim();
+    }
+
+    function getDisneyPlusSeekButtonLabels() {
+        if (!isDisneyPlusHost() || typeof document === 'undefined') return [];
+        return Array.from(document.querySelectorAll('button,[role="button"]'))
+            .map(getElementLabel)
+            .filter(Boolean)
+            .slice(0, 20);
+    }
+
+    function clickDisneyPlusRelativeSeek(delta) {
+        if (!isDisneyPlusHost() || !Number.isFinite(delta) || Math.abs(delta) < 1 || typeof document === 'undefined') return false;
+        const backward = delta < 0;
+        const candidates = Array.from(document.querySelectorAll('button,[role="button"]'));
+        const backRe = /rewind|backward|back\b|zurück|zurueck|rück|rueck|retour|recul|retroced|atrás|voltar|indietro/i;
+        const forwardRe = /forward|ahead|skip|vorwärts|vorwaerts|vorsp|weiter|avancer|adelant|avançar|avancar|avanti/i;
+        const timeRe = /\b(5|10|15|30)\b|sec|sek|second/i;
+
+        const button = candidates.find(btn => {
+            const label = getElementLabel(btn);
+            const matchesDirection = backward ? backRe.test(label) : forwardRe.test(label);
+            return matchesDirection && timeRe.test(label);
+        }) || candidates.find(btn => {
+            const label = getElementLabel(btn);
+            return backward ? backRe.test(label) : forwardRe.test(label);
+        });
+
+        if (!button || typeof button.click !== 'function') return false;
+        const clicks = Math.max(1, Math.min(12, Math.round(Math.abs(delta) / 10)));
+        for (let i = 0; i < clicks; i++) {
+            setTimeout(() => button.click(), i * 60);
+        }
+        return true;
+    }
+
+    function getDisneyPlusTimeline(video) {
+        if (!isDisneyPlusHost()) return null;
+        const range = getSeekableRange(video);
+        const current = video.currentTime;
+        const ui = getDisneyPlusUiTimeline();
+
+        if (ui) {
+            let nativeScale = 1;
+            if (range && range.duration > ui.duration * 1.2) {
+                nativeScale = range.duration / ui.duration;
+            } else if (Number.isFinite(current) && ui.current > 1 && current > ui.current * 1.5) {
+                nativeScale = current / ui.current;
+            }
+            const nativeStart = Number.isFinite(current)
+                ? current - ui.current * nativeScale
+                : (range ? range.start : 0);
+            return {
+                ...(range || {}),
+                current: ui.current,
+                duration: ui.duration,
+                nativeScale,
+                nativeStart
+            };
+        }
+
+        if (!range || range.start < 1 || range.duration < 60) return null;
+        if (!Number.isFinite(current) || current < range.start - 1 || current > range.end + 1) return null;
+        return { ...range, current: Math.max(0, current - range.start), nativeScale: 1, nativeStart: range.start };
+    }
 
     // Site-specific player exceptions live here. The default HTML5 path stays below.
     function getSiteQuirkAdapters() {
@@ -65,13 +321,19 @@
             name: 'disneyplus-timeline-and-buttons',
             key: 'disneyPlus',
             urls: ['disneyplus.com'],
-    function seekVideo(video, targetTime) {
+            matches() { return matchesPlayerUrls(this.urls); },
+            getTimeline: getDisneyPlusTimeline,
+            clickRelativeSeek: clickDisneyPlusRelativeSeek,
+            getDebug(video) {
+                return {
+                    name: this.name,
+                    key: 'disneyPlus',
                     urls: this.urls,
                     timeline: getDisneyPlusTimeline(video),
                     timelineCandidates: lastDisneyPlusTimelineCandidates,
                     seekButtons: getDisneyPlusSeekButtonLabels()
                 };
-        video.currentTime = targetTime;
+            }
         }];
     }
 
@@ -737,7 +999,42 @@
             // otherwise the desynced user silently never sees the badge (L-4).
 
             if (!hcmBadgePending) {
-    // --- Helper: YouTube/Twitch specific actions ---
+
+                hcmBadgePending = true;
+
+                const retry = () => {
+
+                    hcmBadgePending = false;
+
+                    if (hcmDesynced && !hcmBadgeHost) hcmShowBadge();
+
+                };
+
+                if (document.readyState === 'loading') {
+
+                    document.addEventListener('DOMContentLoaded', retry, { once: true });
+
+                } else {
+
+                    setTimeout(retry, 50);
+
+                }
+
+            }
+
+            return;
+
+        }
+
+        const host = hcmEl('div', 'all:initial');
+
+        const root = host.attachShadow({ mode: 'open' });
+
+        const b = hcmEl('div', 'position:fixed;z-index:2147483646;right:16px;bottom:16px;background:#b45309;color:#fff;font:13px/1.3 system-ui,sans-serif;padding:8px 12px;border-radius:10px;box-shadow:0 6px 20px rgba(0,0,0,.4);cursor:pointer;display:flex;align-items:center;gap:8px');
+
+        b.append(hcmEl('span', null, '● ' + hcmStrings.badge), hcmEl('span', 'text-decoration:underline', hcmStrings.resync));
+
+        b.addEventListener('click', hcmExitDesync);
 
         root.appendChild(b);
 
@@ -752,38 +1049,9 @@
     function hcmRemoveBadge() {
 
         if (hcmBadgeHost) { hcmBadgeHost.remove(); hcmBadgeHost = null; }
-            const host = window.location.hostname.toLowerCase();
-            const isYouTube = host === 'youtube.com' || host.endsWith('.youtube.com');
-            const isTwitch  = host === 'twitch.tv' || host.endsWith('.twitch.tv');
-
-            if (isYouTube) {
-                const ytButton = document.querySelector('.ytp-play-button');
-                if (ytButton) {
-                    const isCurrentlyPlaying = !video.paused;
-                    if ((action === EVENTS.PLAY && !isCurrentlyPlaying) || (action === EVENTS.PAUSE && isCurrentlyPlaying)) {
-                        _setSuppress(action === EVENTS.PLAY ? 'playing' : 'paused');
-                        ytButton.click();
-                    }
-                    if (action === EVENTS.SEEK) {
-                        seekVideo(video, data.targetTime);
-                    }
-                    return;
-                }
-            }
-
-            if (isTwitch) {
-                const twitchButton = document.querySelector('[data-a-target="player-play-pause-button"]');
-                if (twitchButton) {
-                    const isCurrentlyPlaying = !video.paused;
-                    if ((action === EVENTS.PLAY && !isCurrentlyPlaying) || (action === EVENTS.PAUSE && isCurrentlyPlaying)) {
-                        _setSuppress(action === EVENTS.PLAY ? 'playing' : 'paused');
-                        twitchButton.click();
-                    }
-                    if (action === EVENTS.SEEK) {
-                        seekVideo(video, data.targetTime);
-                    }
-                    return;
-                }
+
+    }
+
 
 
     function hcmReset() {
@@ -797,7 +1065,7 @@
         hcmSnapBackCooldownUntil = 0; // don't let a stale cooldown swallow the next snap-back
 
         hcmBufferingUntil = 0;
-                seekVideo(video, data.targetTime);
+
         hcmRemoveDialog();
 
         hcmRemoveBadge();
@@ -818,7 +1086,8 @@
 
 
 
-                const timeDiff = Math.abs(video.currentTime - targetTime);
+    function reportLog(message, level = 'info') {
+
         chrome.runtime.sendMessage({ type: 'LOG', message, level }).catch(() => {});
 
     }
@@ -1094,8 +1363,10 @@
         node.gain.linearRampToValueAtTime(value, t + 0.04);
 
     }
-                    currentTime: video.currentTime,
-                    duration: video.duration || 0,
+
+
+
+    function applyAudioBypass(videoEl) {
 
         const chain = audioChains.get(videoEl);
 
@@ -1124,6 +1395,7 @@
 
 
     function applyAudioSettings(videoEl, settings) {
+
         const mergedSettings = mergeAudioSettings(settings);
 
         if (!mergedSettings.enabled || !mergedSettings.compressor?.enabled) {
@@ -1153,8 +1425,8 @@
 
 
         chain.compressor.threshold.value = params.threshold ?? -24;
-        const current = video.currentTime;
-        if (!Number.isFinite(current)) return;
+
+        chain.compressor.knee.value = params.knee ?? 15;
 
         chain.compressor.ratio.value = params.ratio ?? 8;
 
@@ -1191,8 +1463,10 @@
             ? navigator.mediaSession.metadata.title
 
             : null;
-            if (v && Number.isFinite(v.currentTime)) {
-                lastReportedSeekTime = v.currentTime;
+
+    }
+
+
 
     // Extract a canonical episode identifier from a title string.
 
@@ -1201,8 +1475,8 @@
     // Returns null if no episode pattern found.
 
     // --- SHARED_EPISODE_UTILS_INJECT_START ---
-        const current = video.currentTime;
-        if (!Number.isFinite(current)) return;
+
+    // This block is automatically replaced by /scripts/build-extension.js
 
     function extractEpisodeId(title) {
 
@@ -1297,8 +1571,8 @@
         // Always track the latest known title
 
         if (currentTitle) lastKnownMediaTitle = currentTitle;
-        const current = video.currentTime;
-        if (!Number.isFinite(current)) return;
+
+    }
 
 
 
@@ -1332,7 +1606,8 @@
 
         // Background checks the setting; if enabled it creates a lobby
 
-            const settled = v.currentTime;
+        // and sends back PAUSE_FOR_LOBBY so we only freeze if the feature is on.
+
         chrome.runtime.sendMessage({
 
             type: 'EPISODE_CHANGED',
@@ -1437,7 +1712,7 @@
 
         if (lobbyPollTimer) {
 
-                currentTime: video.currentTime,
+            clearInterval(lobbyPollTimer);
 
             lobbyPollTimer = null;
 

extension/page-api-seek-overrides.js

@@ -1,6 +1,10 @@
 (function(root) {
-    const PAGE_API_SEEK_PROVIDERS = [
-        { domain: 'netflix.com', provider: 'netflix' } // Avoids M7375 when seeking via video.currentTime.
+    const PAGE_API_SEEK_FIXES = [
+        {
+            name: 'netflix-page-api-seek',
+            urls: ['netflix.com'],
+            provider: 'netflix'
+        }
     ];
 
     function normalizeHost(input) {
@@ -12,12 +16,16 @@
     }
 
     function matchesDomain(host, domain) {
-        return host === domain || host.endsWith(`.${domain}`);
+        const normalizedDomain = normalizeHost(domain);
+        return normalizedDomain && (host === normalizedDomain || host.endsWith(`.${normalizedDomain}`));
     }
 
-    root.KOALA_PAGE_API_SEEK_PROVIDERS = PAGE_API_SEEK_PROVIDERS;
+    root.KOALA_PAGE_API_SEEK_FIXES = PAGE_API_SEEK_FIXES;
+    root.KOALA_PAGE_API_SEEK_PROVIDERS = PAGE_API_SEEK_FIXES;
     root.koalaFindPageApiSeekProvider = (input) => {
         const host = normalizeHost(input);
-        return PAGE_API_SEEK_PROVIDERS.find(entry => matchesDomain(host, entry.domain)) || null;
+        return PAGE_API_SEEK_FIXES.find(entry =>
+            Array.isArray(entry.urls) && entry.urls.some(url => matchesDomain(host, url))
+        ) || null;
     };
 })(globalThis);

extension/popup.js

@@ -74,7 +74,8 @@ const elements = {
     syncTabCopyInvite: document.getElementById('syncTabCopyInvite'),
     devToolsTabBtn: document.getElementById('devToolsTabBtn'),
     remoteSeekBack: document.getElementById('remoteSeekBack'),
-    remoteSeekForward: document.getElementById('remoteSeekForward')
+    remoteSeekForward: document.getElementById('remoteSeekForward'),
+    remoteSeekFiveMin: document.getElementById('remoteSeekFiveMin')
 };
 
 let localPeerId = null;
@@ -1708,8 +1709,8 @@ elements.pauseBtn.addEventListener('click', () => {
     }, 2500);
 });
 
-function simulateRemoteSeek(delta) {
-    chrome.runtime.sendMessage({ type: 'DEV_SIMULATE_REMOTE_SEEK', delta }, (res) => {
+function simulateRemoteSeek({ delta = null, targetTime = null }) {
+    chrome.runtime.sendMessage({ type: 'DEV_SIMULATE_REMOTE_SEEK', delta, targetTime }, (res) => {
         if (chrome.runtime.lastError || !res || res.status !== 'ok') {
             showToast(res?.message || 'Remote seek failed', 'error');
             return;
@@ -1720,10 +1721,13 @@ function simulateRemoteSeek(delta) {
 }
 
 if (elements.remoteSeekBack) {
-    elements.remoteSeekBack.addEventListener('click', () => simulateRemoteSeek(-30));
+    elements.remoteSeekBack.addEventListener('click', () => simulateRemoteSeek({ delta: -30 }));
 }
 if (elements.remoteSeekForward) {
-    elements.remoteSeekForward.addEventListener('click', () => simulateRemoteSeek(30));
+    elements.remoteSeekForward.addEventListener('click', () => simulateRemoteSeek({ delta: 30 }));
+}
+if (elements.remoteSeekFiveMin) {
+    elements.remoteSeekFiveMin.addEventListener('click', () => simulateRemoteSeek({ targetTime: 300 }));
 }
 
 elements.clearLogs.addEventListener('click', () => {
@@ -2083,6 +2087,26 @@ elements.copyLogs.addEventListener('click', () => {
             lines.push(`- **ReadyState:** ${readyOk ? '\u2705' : '\u26A0\uFE0F'} ${safe(vs.readyState, '?')} (${readyLabel})`);
             lines.push(`- **Network:** ${safe(vs.networkState, '?')} (${netLabel})`);
             lines.push(`- **Buffered:** ${safe(vs.buffered, '?')}`);
+            if (vs.nativeCurrentTime != null || vs.nativeDuration != null) {
+                lines.push(`- **Native Time:** ${safe(vs.nativeCurrentTime, '?')}s / ${safe(vs.nativeDuration, '?')}s`);
+            }
+            if (vs.siteQuirk) {
+                const quirk = vs.siteQuirk;
+                const label = quirk.name || quirk.key || 'site';
+                if (quirk.timeline) {
+                    lines.push(`- **${label} Timeline:** ${safe(quirk.timeline.current, '?')}s / ${safe(quirk.timeline.duration, '?')}s`);
+                }
+                const candidates = Array.isArray(quirk.timelineCandidates) ? quirk.timelineCandidates : [];
+                if (candidates.length > 0) {
+                    lines.push(`- **${label} Timeline Candidates:**`);
+                    candidates.forEach(c => lines.push(`  - ${safe(c.source, '?')}: ${safe(c.current, '?')}s / ${safe(c.duration, '?')}s`));
+                }
+                const buttons = Array.isArray(quirk.seekButtons) ? quirk.seekButtons : [];
+                if (buttons.length > 0) {
+                    lines.push(`- **${label} Buttons:**`);
+                    buttons.forEach(label => lines.push(`  - ${label}`));
+                }
+            }
             lines.push(`- **Dimensions:** ${safe(vs.videoWidth, '?')}x${safe(vs.videoHeight, '?')}${dimOk ? '' : ' \u26A0\uFE0F 0x0'}`);
             lines.push(`- **Muted:** ${safe(vs.muted, '?')} | **Volume:** ${safe(vs.volume, '?')} | **Speed:** ${safe(vs.playbackRate, '?')}x`);
             lines.push(`- **Seeking:** ${safe(vs.seeking, '?')} | **Ended:** ${safe(vs.ended, '?')} | **Loop:** ${safe(vs.loop, '?')}`);
@@ -2256,6 +2280,18 @@ function refreshDebugInfo() {
                 addField('Network', `${state.networkState} (${state.networkStateLabel || '?'})`,
                     state.networkState === 1 ? '#22c55e' : state.networkState === 3 ? '#ef4444' : 'var(--text-muted)');
                 addField('Buffered', state.buffered || '?');
+                if (state.nativeCurrentTime != null || state.nativeDuration != null) {
+                    addField('Native Time', `${state.nativeCurrentTime ?? '?'}s / ${state.nativeDuration ?? '?'}s`);
+                }
+                if (state.siteQuirk) {
+                    const quirk = state.siteQuirk;
+                    const label = quirk.name || quirk.key || 'Site';
+                    if (quirk.timeline) {
+                        addField(`${label} Timeline`, `${quirk.timeline.current ?? '?'}s / ${quirk.timeline.duration ?? '?'}s`);
+                    }
+                    const buttons = Array.isArray(quirk.seekButtons) ? quirk.seekButtons.slice(0, 4).join(' | ') : '';
+                    if (buttons) addField(`${label} Buttons`, buttons);
+                }
 
                 addSection('Properties');
                 addField('Seeking', String(state.seeking));

scripts/test-content-video-finder.cjs

@@ -19,6 +19,14 @@ function extractFunction(name, text) {
   throw new Error(`${name} body did not terminate`);
 }
 
+function makeSeekable(ranges = []) {
+  return {
+    length: ranges.length,
+    start(i) { return ranges[i][0]; },
+    end(i) { return ranges[i][1]; }
+  };
+}
+
 function makeVideo(name, width, height, options = {}) {
   return {
     name,
@@ -28,7 +36,9 @@ function makeVideo(name, width, height, options = {}) {
     offsetWidth: width,
     offsetHeight: height,
     muted: options.muted ?? true,
-    duration: options.duration ?? 0
+    duration: options.duration ?? 0,
+    currentTime: options.currentTime ?? 0,
+    seekable: options.seekable ?? makeSeekable()
   };
 }
 
@@ -61,4 +71,100 @@ assert.strictEqual(
   'findVideo should score Shadow DOM videos together with light DOM videos'
 );
 
+function makeDocument(nodes = []) {
+  return {
+    querySelectorAll() { return nodes; }
+  };
+}
+
+function makeNode(attrs = {}, textContent = '') {
+  return {
+    textContent,
+    value: attrs.value,
+    max: attrs.max,
+    clicked: 0,
+    click() { this.clicked += 1; },
+    getAttribute(name) { return attrs[name] ?? null; }
+  };
+}
+
+function loadTimelineFns(hostname, document = makeDocument()) {
+  return Function('window', 'document', [
+    'let lastDisneyPlusTimelineCandidates = [];',
+    extractFunction('hostMatchesUrl', source),
+    extractFunction('matchesPlayerUrls', source),
+    extractFunction('isDisneyPlusHost', source),
+    extractFunction('getSeekableRange', source),
+    extractFunction('parseClockTime', source),
+    extractFunction('parseTimelineText', source),
+    extractFunction('getDisneyPlusUiTimeline', source),
+    extractFunction('getElementLabel', source),
+    extractFunction('getDisneyPlusSeekButtonLabels', source),
+    extractFunction('clickDisneyPlusRelativeSeek', source),
+    extractFunction('getDisneyPlusTimeline', source),
+    extractFunction('getSiteQuirkAdapters', source),
+    extractFunction('getActiveSiteQuirk', source),
+    extractFunction('getSiteQuirkTimeline', source),
+    extractFunction('getSiteQuirkDebug', source),
+    extractFunction('getSyncCurrentTime', source),
+    extractFunction('getSyncDuration', source),
+    extractFunction('toNativeSeekTime', source),
+    'return { getActiveSiteQuirk, getSyncCurrentTime, getSyncDuration, toNativeSeekTime, clickDisneyPlusRelativeSeek };'
+  ].join('\n'))({ location: { hostname } }, document);
+}
+
+function loadPlayerFixFns(hostname) {
+  return Function('window', [
+    extractFunction('hostMatchesUrl', source),
+    extractFunction('matchesPlayerUrls', source),
+    extractFunction('getPlayerActionFixes', source),
+    extractFunction('getActivePlayerActionFix', source),
+    'return { getPlayerActionFixes, getActivePlayerActionFix };'
+  ].join('\n'))({ location: { hostname } });
+}
+
+const disneyUiDocument = makeDocument([
+  makeNode({ 'aria-valuetext': '0:09 / 180:00' })
+]);
+const disneyFns = loadTimelineFns('www.disneyplus.com', disneyUiDocument);
+assert.equal(disneyFns.getActiveSiteQuirk().name, 'disneyplus-timeline-and-buttons');
+assert.deepEqual(disneyFns.getActiveSiteQuirk().urls, ['disneyplus.com']);
+const disneyVideo = makeVideo('disney-offset', 1920, 1080, {
+  currentTime: 29,
+  duration: 0,
+  seekable: makeSeekable([[0, 32400]])
+});
+assert.equal(disneyFns.getSyncCurrentTime(disneyVideo), 9);
+assert.equal(disneyFns.getSyncDuration(disneyVideo), 10800);
+assert.equal(disneyFns.toNativeSeekTime(disneyVideo, 39), 119);
+
+const disneySeekableFallbackFns = loadTimelineFns('www.disneyplus.com');
+const disneyOffsetVideo = makeVideo('disney-offset', 1920, 1080, {
+  currentTime: 29,
+  duration: 0,
+  seekable: makeSeekable([[20, 10820]])
+});
+assert.equal(disneySeekableFallbackFns.getSyncCurrentTime(disneyOffsetVideo), 9);
+assert.equal(disneySeekableFallbackFns.getSyncDuration(disneyOffsetVideo), 10800);
+assert.equal(disneySeekableFallbackFns.toNativeSeekTime(disneyOffsetVideo, 39), 59);
+
+const genericFns = loadTimelineFns('example.com');
+assert.equal(genericFns.getActiveSiteQuirk(), null);
+assert.equal(genericFns.getSyncCurrentTime(disneyVideo), 29);
+assert.equal(genericFns.getSyncDuration(disneyVideo), 0);
+assert.equal(genericFns.toNativeSeekTime(disneyVideo, 39), 39);
+
+const backButton = makeNode({ 'aria-label': '10 Sekunden zurück' });
+const forwardButton = makeNode({ 'aria-label': '10 Sekunden vorspulen' });
+const disneyButtonFns = loadTimelineFns('www.disneyplus.com', makeDocument([backButton, forwardButton]));
+assert.equal(disneyButtonFns.clickDisneyPlusRelativeSeek(-30), true);
+assert.equal(disneyButtonFns.clickDisneyPlusRelativeSeek(30), true);
+
+const twitchFixFns = loadPlayerFixFns('player.twitch.tv');
+assert.equal(twitchFixFns.getActivePlayerActionFix().name, 'twitch-player-buttons');
+assert.deepEqual(twitchFixFns.getActivePlayerActionFix().urls, ['twitch.tv']);
+
+const genericFixFns = loadPlayerFixFns('example.com');
+assert.equal(genericFixFns.getActivePlayerActionFix(), null);
+
 console.log('content video finder tests passed');