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feat: added video preview thumbnail system. #20

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feat: added video preview thumbnail system. #20

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63 changes: 55 additions & 8 deletions extension/src/scripts/content.js
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Original file line number Diff line number Diff line change
Expand Up @@ -111,7 +111,7 @@ async function fetchJson(url) {
if (bgData !== undefined && bgData !== null) {
return bgData;
}
} catch (e) {}
} catch (e) { }

// 2. Direct fetch fallback from page
try {
Expand All @@ -121,7 +121,7 @@ async function fetchJson(url) {
if (res.ok) {
return await res.json();
}
} catch (e) {}
} catch (e) { }

return null;
}
Expand Down Expand Up @@ -203,6 +203,13 @@ function bindGlobalPlayerListeners() {
globalPlayerListenersBound = true;
}

function getThumbnailUrl(url, i = 0) {
let splited = url.split("/")
splited = splited.slice(0, -2)
let result = splited.join("/") + `/thumbnails/thumbnail-sheet-${i}.webp`;
return result
}

function extractMetadataFromDOM(channelSlug, videoSlug) {
try {
const scripts = document.querySelectorAll('script');
Expand Down Expand Up @@ -231,11 +238,11 @@ function extractMetadataFromDOM(channelSlug, videoSlug) {
};
}
}
} catch (e) {}
} catch (e) { }
}
}
}
} catch (e) {}
} catch (e) { }
return null;
}

Expand Down Expand Up @@ -671,6 +678,8 @@ async function unlockVideo(triggerElement) {
const finalUrl = streamUrl + (streamUrl.includes('?') ? '&' : '?') + 'kick_ts=' + Date.now();
let videoParent = existingChat ? container : container.querySelector('#unlocker-video-area');

let firstPageThumbnail = getThumbnailUrl(streamUrl)

// Build Custom Player UI
const playerHTML = `
<div id="k-player" style="width:100%;height:100%;position:relative;background:black;overflow:hidden;font-family:Inter,sans-serif;">
Expand All @@ -680,7 +689,10 @@ async function unlockVideo(triggerElement) {
</div>
<div id="k-controls" style="position:absolute;bottom:0;left:0;width:100%;padding:20px 15px 10px 15px;background:linear-gradient(to top, rgba(0,0,0,0.9), transparent);display:flex;flex-direction:column;opacity:0;transition:opacity 0.2s;">
<div id="k-track" style="width:100%;height:6px;padding:8px 0;background:rgba(255,255,255,0.3);background-clip:content-box;box-sizing:content-box;cursor:pointer;position:relative;margin-bottom:4px;border-radius:2px;">
<div id="k-track-tooltip">
<div>
<img id="k-thumbnail" alt="" class="-top-[100px] lg:-top-[150px] absolute rounded-lg border-[1.5px] border-white bg-no-repeat object-none h-[22vw] max-h-[101px] w-[40vw] max-w-[180px] hidden" src="" style="object-position: 0px 0px; transform: translateX(0px);">
</div>
<div id="k-track-tooltip">
<div id="k-track-tooltip-time">0:00</div>
</div>
<div id="k-progress" style="width:0%;height:100%;background:#53fc18;position:relative;border-radius:2px;"></div>
Expand Down Expand Up @@ -726,6 +738,7 @@ async function unlockVideo(triggerElement) {
const btnBig = videoParent.querySelector('#k-big-play');
const progressBar = videoParent.querySelector('#k-progress');
const track = videoParent.querySelector('#k-track');
const thumbnail = videoParent.querySelector("#k-thumbnail")
const trackTooltip = videoParent.querySelector('#k-track-tooltip');
const trackTooltipTime = videoParent.querySelector('#k-track-tooltip-time');
const timeDisplay = videoParent.querySelector('#k-time');
Expand All @@ -748,6 +761,11 @@ async function unlockVideo(triggerElement) {
let loadingStateTimeout = null;
let previousVolumeBeforeMute = initialVolume > 0 ? initialVolume : 1;


thumbnail.src = firstPageThumbnail
console.log(firstPageThumbnail);


const updateVolumeSliderVisual = (volume) => {
const percent = Math.max(0, Math.min(100, Math.round(volume * 100)));
volumeSlider.style.setProperty('--k-volume-percent', `${percent}%`);
Expand Down Expand Up @@ -931,13 +949,13 @@ async function unlockVideo(triggerElement) {
});
vid.addEventListener('ended', () => setLoadingState(false));
let lastSave = 0;

vid.addEventListener('timeupdate', () => {
if (Date.now() - lastSave > 4000) {
localStorage.setItem(resumeKey, vid.currentTime);
lastSave = Date.now();
}

if (isFinite(vid.duration)) {
progressBar.style.width = (vid.currentTime / vid.duration * 100) + '%';
timeDisplay.textContent = `${formatTime(vid.currentTime)} / ${formatTime(vid.duration)}`;
Expand All @@ -955,6 +973,23 @@ async function unlockVideo(triggerElement) {
vid.currentTime = ratio * vid.duration;
};

const getAndUpdateThumbnailPosition = () => {

const hoverTime = vid.currentTime

const minutes = Math.floor(hoverTime / 60)

const row = minutes % 5
const column = Math.floor(minutes / 5)

let pageCount = Math.floor(column / 50);
thumbnailUrl = getThumbnailUrl(streamUrl, pageCount)

thumbnail.src = thumbnailUrl

return { row, column }
}

track.addEventListener('mousedown', (e) => {
isDraggingTrack = true;
updateTrackPosition(e);
Expand All @@ -981,12 +1016,24 @@ async function unlockVideo(triggerElement) {
trackTooltipTime.textContent = formatTime(hoverTime);
trackTooltip.style.left = `${ratio * rect.width}px`;
trackTooltip.classList.add('visible');

const { row, column } = getAndUpdateThumbnailPosition();
if (thumbnail.classList.contains("hidden")) {
thumbnail.classList.remove("hidden")
}

let position = Math.min(Math.max(ratio * rect.width - 80, 20), rect.width - 180);
thumbnail.style.objectPosition = `${(row) * -180}px ${column % 50 * -101}px`;
thumbnail.style.transform = `translateX(${position}px)`;
});
track.addEventListener('mouseenter', () => {
if (isFinite(vid.duration)) trackTooltip.classList.add('visible');
});
track.addEventListener('mouseleave', () => {
trackTooltip.classList.remove('visible');
if (!thumbnail.classList.contains("hidden")) {
thumbnail.classList.add("hidden")
}
});

let hideControlsTimeout = null;
Expand Down Expand Up @@ -1080,7 +1127,7 @@ async function unlockVideo(triggerElement) {
vid.play().catch(() => btnBig.classList.add('visible'));
});
const savedTime = parseFloat(localStorage.getItem(resumeKey));

if (Number.isFinite(savedTime) && savedTime > 1) {
vid.addEventListener('loadedmetadata', () => {
if (Number.isFinite(vid.duration)) {
Expand Down