improve gallery

This commit is contained in:
lelo 2026-01-10 13:20:21 +00:00
parent ece99f8e48
commit 56f60f261a
6 changed files with 615 additions and 12 deletions

84
app.py
View File

@ -8,7 +8,7 @@ if FLASK_ENV == 'production':
eventlet.monkey_patch()
from flask import Flask, render_template, send_file, url_for, jsonify, request, session, send_from_directory, make_response, abort
from PIL import Image, ImageOps
from PIL import Image, ImageOps, ExifTags
import io
from functools import wraps
import mimetypes
@ -544,8 +544,9 @@ def list_directory_contents(directory, subpath):
blocked_filenames = [
'Thumbs.db',
'*.mrk',
'*.arw', '*.cr2', '*.lrf'
'*.mrk', '*.md',
'*.arw', '*.cr2', '*.lrf',
'*.mov', '*.mp4', '*.avi', '*.mkv'
]
@ -884,6 +885,14 @@ def serve_file(subpath):
with Image.open(full_path) as orig:
img = ImageOps.exif_transpose(orig)
exif_bytes = None
try:
exif = img.getexif()
if exif:
exif.pop(0x0112, None) # Drop orientation tag since we already rotated the image
exif_bytes = exif.tobytes()
except Exception:
exif_bytes = None
variants = {
orig_key: (1920, 1920),
small_key: ( 480, 480),
@ -894,8 +903,10 @@ def serve_file(subpath):
if thumb.mode in ("RGBA", "P"):
thumb = thumb.convert("RGB")
bio = io.BytesIO()
thumb.save(bio, format='JPEG', quality=85)
save_kwargs = {'format': 'JPEG', 'quality': 85}
if key == orig_key and exif_bytes:
save_kwargs['exif'] = exif_bytes
thumb.save(bio, **save_kwargs)
bio.seek(0)
cache.set(key, bio, read=True)
# Read back the variant we need
@ -1086,6 +1097,69 @@ def serve_file(subpath):
return response
@app.route("/media_exif/<path:subpath>")
@auth.require_secret
def media_exif(subpath):
root, *relative_parts = subpath.split('/')
base_path = session.get('folders', {}).get(root)
if not base_path:
return jsonify({'error': 'Directory not found'}), 404
full_path = os.path.join(base_path, *relative_parts)
try:
full_path = check_path(full_path)
except (ValueError, PermissionError) as e:
return jsonify({'error': str(e)}), 403
if not os.path.isfile(full_path):
return jsonify({'error': 'File not found'}), 404
mime, _ = mimetypes.guess_type(full_path)
if not mime or not mime.startswith('image/'):
return jsonify({'error': 'Not an image'}), 400
try:
with Image.open(full_path) as img:
exif_data = img.getexif()
if not exif_data:
return jsonify({'exif': {}})
readable = {}
ignore_tags = {'Orientation', 'ExifOffset', 'MakerNote', 'PrintImageMatching'}
def add_items(exif_dict):
for tag_id, value in exif_dict.items():
tag = ExifTags.TAGS.get(tag_id, str(tag_id))
if tag in ignore_tags:
continue
try:
if isinstance(value, bytes):
value = value.decode('utf-8', errors='ignore').strip()
except Exception:
pass
readable[tag] = str(value)
add_items(exif_data)
# Include Exif and GPS sub-IFDs when available to surface exposure/ISO/lens details.
try:
if hasattr(ExifTags, 'IFD'):
for ifd in (ExifTags.IFD.Exif, ExifTags.IFD.GPSInfo):
try:
sub_ifd = exif_data.get_ifd(ifd)
add_items(sub_ifd)
except Exception:
continue
except Exception:
pass
except Exception as e:
app.logger.warning(f"EXIF read failed for {subpath}: {e}")
return jsonify({'exif': {}})
return jsonify({'exif': readable})
@app.route("/transcript/<path:subpath>")
@auth.require_secret

View File

@ -315,6 +315,11 @@ footer {
object-fit: cover;
}
.thumbnail-fallback {
object-fit: contain;
background: #e5e5e5;
}
/* pop when loaded */
.image-item.loaded .thumbnail {
transform: scale(1.05);

View File

@ -73,6 +73,41 @@ function encodeSubpath(subpath) {
// Global variable for gallery images (updated from current folder)
let currentGalleryImages = [];
// Fallback thumbnail (camera icon) when thumbnail generation is unavailable
const thumbnailFallbackData = 'data:image/svg+xml;utf8,' + encodeURIComponent(
`<svg xmlns="http://www.w3.org/2000/svg" width="320" height="200" viewBox="0 0 320 200">
<rect width="100%" height="100%" fill="#e5e5e5"/>
<g fill="#333" stroke="#333" stroke-width="4">
<rect x="100" y="60" width="120" height="80" rx="10" ry="10" fill="none"/>
<rect x="125" y="40" width="30" height="20" rx="4" ry="4" fill="#333" stroke="none"/>
<circle cx="160" cy="100" r="24" fill="none"/>
<circle cx="160" cy="100" r="10" fill="#333" stroke="none"/>
<circle cx="205" cy="75" r="5" fill="#333" stroke="none"/>
</g>
</svg>`
);
function handleThumbnailError(imgEl) {
imgEl.onerror = null; // Prevent infinite loop
imgEl.src = thumbnailFallbackData;
imgEl.classList.add('thumbnail-fallback');
const item = imgEl.closest('.image-item');
if (item) {
item.classList.add('loaded');
}
}
function handleThumbnailLoad(imgEl) {
// Some servers return 204 for missing thumbs, which triggers load with zero dimensions
if (!imgEl.naturalWidth || !imgEl.naturalHeight) {
handleThumbnailError(imgEl);
return;
}
const item = imgEl.closest('.image-item');
if (item) {
item.classList.add('loaded');
}
}
function paintFile() {
// Highlight the currently playing file
@ -125,7 +160,8 @@ function renderContent(data) {
data-thumb-url="/media/${thumbUrl}"
data-full-url="/media/${file.path}"
class="thumbnail"
onload="this.closest('.image-item').classList.add('loaded')"
onload="handleThumbnailLoad(this)"
onerror="handleThumbnailError(this)"
/>
</a>
<span class="file-name">${file.name}</span>
@ -218,7 +254,8 @@ function renderContent(data) {
data-thumb-url="/media/${thumbUrl}"
data-full-url="/media/${file.path}"
class="thumbnail"
onload="this.closest('.image-item').classList.add('loaded')"
onload="handleThumbnailLoad(this)"
onerror="handleThumbnailError(this)"
/>
</a>
<span class="file-name">${file.name}</span>

View File

@ -8,6 +8,12 @@
outline: none; /* Disable outline on click/focus */
}
@property --play-progress {
syntax: '<angle>';
inherits: false;
initial-value: 0deg;
}
/* Gallery Modal Styles */
#gallery-modal {
display: none; /* Hidden by default */
@ -58,6 +64,7 @@
justify-content: center;
align-items: center;
z-index: 9999; /* Ensure it's on top */
pointer-events: none; /* Allow interacting with close button while loader shows */
}
#gallery-loader {
@ -90,3 +97,138 @@
.gallery-prev { left: 20px; }
.gallery-next { right: 20px; }
#gallery-info {
position: fixed;
top: 20px;
left: 20px;
width: 36px;
height: 36px;
border-radius: 50%;
border: 1px solid rgba(255, 255, 255, 0.25);
background: rgba(0, 0, 0, 0.6);
color: #fff;
display: grid;
place-items: center;
cursor: pointer;
z-index: 120;
font-size: 1rem;
}
#gallery-info.loading {
opacity: 0.65;
}
#gallery-exif {
position: fixed;
top: 60px;
left: 20px;
background: rgba(0, 0, 0, 0.82);
color: #fff;
padding: 0.75rem 0.85rem;
border-radius: 8px;
box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
max-width: 320px;
max-height: 50vh;
overflow: auto;
display: none;
z-index: 120;
}
#gallery-exif.open {
display: block;
}
.exif-row {
display: flex;
justify-content: space-between;
gap: 12px;
font-size: 0.9rem;
margin-bottom: 6px;
line-height: 1.3;
}
.exif-row:last-child {
margin-bottom: 0;
}
.exif-key {
font-weight: 600;
color: #e5e5e5;
}
.exif-value {
text-align: right;
color: #fff;
}
.exif-placeholder {
font-style: italic;
color: #d0d0d0;
}
#gallery-filename {
position: fixed;
bottom: 20px;
left: 50%;
transform: translateX(-50%);
color: #fff;
background: rgba(0, 0, 0, 0.55);
padding: 0.4rem 0.75rem;
border-radius: 6px;
font-size: 0.95rem;
max-width: 90%;
text-align: center;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
z-index: 20;
pointer-events: none;
}
#gallery-play {
position: fixed;
bottom: 20px;
right: 20px;
width: 44px;
height: 44px;
border-radius: 50%;
border: 1px solid rgba(255, 255, 255, 0.25);
background: rgba(0, 0, 0, 0.6);
color: #fff;
display: grid;
place-items: center;
cursor: pointer;
z-index: 120;
font-size: 1.2rem;
--autoplay-duration: 5s;
--play-progress: 0deg;
overflow: visible;
}
#gallery-play.playing::after {
content: '';
position: absolute;
inset: -8px;
border-radius: 50%;
background:
conic-gradient(
rgba(255, 255, 255, 0.9) 0deg,
rgba(255, 255, 255, 0.9) var(--play-progress, 0deg),
rgba(255, 255, 255, 0.2) var(--play-progress, 0deg),
rgba(255, 255, 255, 0.2) 360deg
);
mask: radial-gradient(circle at center, transparent 60%, #000 70%);
animation: none;
pointer-events: none;
box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2);
}
#gallery-play.playing.playing-anim::after {
animation: gallery-play-fill var(--autoplay-duration) linear forwards;
}
@keyframes gallery-play-fill {
from { --play-progress: 0deg; }
to { --play-progress: 360deg; }
}

View File

@ -3,6 +3,12 @@ let pinchZoomOccurred = false;
let initialPinchDistance = null;
let initialScale = 1;
let currentScale = 1;
let exifAbortController = null;
let isGalleryLoading = false;
let autoPlayTimer = null;
let isAutoPlay = false;
const AUTO_PLAY_INTERVAL_MS = 5000;
let pendingAutoAdvance = false;
// Assume that currentGalleryImages is already declared in app.js.
// Only declare currentGalleryIndex if it isn't defined already.
@ -10,6 +16,190 @@ if (typeof currentGalleryIndex === "undefined") {
var currentGalleryIndex = -1;
}
let currentExifRequestId = 0;
function encodeGalleryPath(relUrl) {
if (!relUrl) {
return '';
}
return relUrl
.split('/')
.map(segment => encodeURIComponent(segment))
.join('/');
}
function escapeHtml(value) {
return String(value === undefined || value === null ? '' : value).replace(/[&<>"']/g, (char) => ({
'&': '&amp;',
'<': '&lt;',
'>': '&gt;',
'"': '&quot;',
"'": '&#39;'
}[char]));
}
function renderExifData(exif) {
const exifPanel = document.getElementById('gallery-exif');
if (!exifPanel) {
return;
}
const entries = exif && Object.keys(exif).length > 0 ? exif : null;
if (!entries) {
exifPanel.innerHTML = '<div class="exif-row exif-placeholder">No EXIF data</div>';
return;
}
const importantKeys = [
'Model',
'Make',
'LensModel',
'DateTimeOriginal',
'ExposureTime',
'FNumber',
'ISOSpeedRatings',
'FocalLength',
'FocalLengthIn35mmFilm',
'ExposureBiasValue',
'WhiteBalance',
'Software'
];
const rows = [];
importantKeys.forEach(key => {
const value = exif[key];
if (value !== undefined && value !== null && value !== '') {
rows.push([key, value]);
}
});
if (rows.length === 0) {
exifPanel.innerHTML = '<div class="exif-row exif-placeholder">No EXIF data</div>';
return;
}
exifPanel.innerHTML = rows.map(([key, value]) => {
const safeKey = escapeHtml(key);
const safeValue = escapeHtml(Array.isArray(value) ? value.join(', ') : value);
return `<div class="exif-row"><span class="exif-key">${safeKey}</span><span class="exif-value">${safeValue}</span></div>`;
}).join('');
}
function showExifPlaceholder(message) {
const exifPanel = document.getElementById('gallery-exif');
if (!exifPanel) {
return;
}
exifPanel.innerHTML = `<div class="exif-row exif-placeholder">${message}</div>`;
}
function loadExifData(relUrl) {
const exifPanel = document.getElementById('gallery-exif');
const infoButton = document.getElementById('gallery-info');
if (!exifPanel || !infoButton) {
return;
}
const requestId = ++currentExifRequestId;
if (exifAbortController) {
try {
exifAbortController.abort();
} catch (e) {
/* ignore */
}
}
exifAbortController = typeof AbortController !== 'undefined' ? new AbortController() : null;
infoButton.classList.add('loading');
showExifPlaceholder('Loading EXIF...');
fetch(`/media_exif/${encodeGalleryPath(relUrl)}`, exifAbortController ? { signal: exifAbortController.signal } : {})
.then(res => {
if (!res.ok) {
throw new Error('EXIF fetch failed');
}
return res.json();
})
.then(data => {
if (requestId !== currentExifRequestId) {
return;
}
infoButton.classList.remove('loading');
renderExifData((data && data.exif) || {});
})
.catch((err) => {
if (err && err.name === 'AbortError') {
return;
}
if (requestId !== currentExifRequestId) {
return;
}
infoButton.classList.remove('loading');
showExifPlaceholder('EXIF not available');
});
}
function toggleExifPanel() {
const exifPanel = document.getElementById('gallery-exif');
const infoButton = document.getElementById('gallery-info');
if (!exifPanel || !infoButton) {
return;
}
const isOpen = exifPanel.classList.toggle('open');
infoButton.setAttribute('aria-expanded', isOpen ? 'true' : 'false');
}
function resetExifPanel(clearOpen = true) {
const exifPanel = document.getElementById('gallery-exif');
const infoButton = document.getElementById('gallery-info');
currentExifRequestId++;
if (exifAbortController) {
try {
exifAbortController.abort();
} catch (e) {
/* ignore */
}
exifAbortController = null;
}
if (exifPanel) {
exifPanel.innerHTML = '';
if (clearOpen) {
exifPanel.classList.remove('open');
}
}
if (infoButton && clearOpen) {
infoButton.setAttribute('aria-expanded', 'false');
infoButton.classList.remove('loading');
}
}
function updateFilenameDisplay(relUrl) {
const filenameEl = document.getElementById('gallery-filename');
if (!filenameEl) {
return;
}
if (!relUrl) {
filenameEl.textContent = '';
return;
}
const parts = relUrl.split('/');
const filename = parts[parts.length - 1] || relUrl;
filenameEl.textContent = filename;
}
function updateNextButtonState() {
const nextButton = document.querySelector('.gallery-next');
if (!nextButton) {
return;
}
const atLastImage = currentGalleryIndex >= currentGalleryImages.length - 1;
nextButton.textContent = atLastImage ? 'x' : '';
nextButton.setAttribute('aria-label', atLastImage ? 'Close gallery' : 'Next image');
}
function openGalleryModal(relUrl) {
document.body.style.overflow = 'hidden'; // Disable background scrolling.
currentGalleryIndex = currentGalleryImages.indexOf(relUrl);
@ -18,6 +208,13 @@ function openGalleryModal(relUrl) {
}
function showGalleryImage(relUrl) {
if (isGalleryLoading) {
return;
}
isGalleryLoading = true;
clearAutoPlayTimer();
updateNextButtonState();
loadExifData(relUrl);
const fullUrl = '/media/' + relUrl;
const modal = document.getElementById('gallery-modal');
const currentImage = document.getElementById('gallery-modal-content');
@ -36,6 +233,7 @@ function showGalleryImage(relUrl) {
tempImg.onload = function () {
clearTimeout(loaderTimeout);
loader.style.display = 'none';
updateFilenameDisplay(relUrl);
// Select all current images in the gallery modal
const existingImages = document.querySelectorAll('#gallery-modal img');
@ -84,6 +282,15 @@ function showGalleryImage(relUrl) {
img.parentNode.removeChild(img); // Remove old images
}
});
isGalleryLoading = false;
if (pendingAutoAdvance && isAutoPlay) {
pendingAutoAdvance = false;
attemptAutoAdvance();
return;
}
if (isAutoPlay) {
scheduleAutoPlayCycle();
}
}, 510); // 500ms for fade-out + small buffer
// Preload the next image
@ -94,6 +301,11 @@ function showGalleryImage(relUrl) {
tempImg.onerror = function() {
clearTimeout(loaderTimeout);
loader.style.display = 'none';
isGalleryLoading = false;
pendingAutoAdvance = false;
if (isAutoPlay) {
scheduleAutoPlayCycle();
}
console.error('Error loading image:', fullUrl);
};
}
@ -107,6 +319,8 @@ function preloadNextImage() {
function closeGalleryModal() {
document.getElementById('gallery-modal').style.display = 'none';
isGalleryLoading = false;
setAutoPlay(false);
// remove all images
const existingImages = document.querySelectorAll('#gallery-modal img');
existingImages.forEach(img => {
@ -114,6 +328,11 @@ function closeGalleryModal() {
img.parentNode.removeChild(img);
}
});
const filenameEl = document.getElementById('gallery-filename');
if (filenameEl) {
filenameEl.textContent = '';
}
resetExifPanel(true);
// Restore scrolling.
document.body.style.overflow = '';
}
@ -132,12 +351,12 @@ function handleGalleryImageClick(e) {
const imgRect = this.getBoundingClientRect();
if (e.clientX < imgRect.left + imgRect.width / 2) {
if (currentGalleryIndex > 0) {
if (!isGalleryLoading && currentGalleryIndex > 0) {
currentGalleryIndex--;
showGalleryImage(currentGalleryImages[currentGalleryIndex]);
}
} else {
if (currentGalleryIndex < currentGalleryImages.length - 1) {
if (!isGalleryLoading && currentGalleryIndex < currentGalleryImages.length - 1) {
currentGalleryIndex++;
showGalleryImage(currentGalleryImages[currentGalleryIndex]);
}
@ -173,12 +392,12 @@ function initGallerySwipe() {
const deltaX = touchEndX - touchStartX;
if (Math.abs(deltaX) > 50) { // Swipe threshold.
if (deltaX > 0) { // Swipe right: previous image.
if (currentGalleryIndex > 0) {
if (!isGalleryLoading && currentGalleryIndex > 0) {
currentGalleryIndex--;
showGalleryImage(currentGalleryImages[currentGalleryIndex]);
}
} else { // Swipe left: next image.
if (currentGalleryIndex < currentGalleryImages.length - 1) {
if (!isGalleryLoading && currentGalleryIndex < currentGalleryImages.length - 1) {
currentGalleryIndex++;
showGalleryImage(currentGalleryImages[currentGalleryIndex]);
}
@ -187,6 +406,104 @@ function initGallerySwipe() {
}
}
function clearAutoPlayTimer() {
if (autoPlayTimer) {
clearInterval(autoPlayTimer);
autoPlayTimer = null;
}
}
function setAutoPlay(active) {
const playButton = document.getElementById('gallery-play');
isAutoPlay = active;
if (playButton) {
playButton.textContent = active ? '⏸' : '▶';
playButton.setAttribute('aria-pressed', active ? 'true' : 'false');
playButton.classList.toggle('playing', active);
}
pendingAutoAdvance = false;
clearAutoPlayTimer();
if (active) {
scheduleAutoPlayCycle();
} else {
setPlayRingProgress(0);
}
}
function setPlayRingProgress(deg) {
const playButton = document.getElementById('gallery-play');
if (playButton) {
playButton.style.setProperty('--play-progress', `${deg}deg`);
}
}
function restartPlayAnimation() {
const playButton = document.getElementById('gallery-play');
if (!playButton) {
return;
}
playButton.classList.remove('playing-anim');
// force reflow to restart animation
void playButton.offsetWidth;
setPlayRingProgress(0);
playButton.classList.add('playing-anim');
}
function completePlayRing() {
const playButton = document.getElementById('gallery-play');
if (!playButton) {
return;
}
playButton.classList.remove('playing-anim');
setPlayRingProgress(360);
}
function scheduleAutoPlayCycle() {
if (!isAutoPlay) {
return;
}
clearAutoPlayTimer();
restartPlayAnimation();
autoPlayTimer = setTimeout(() => {
triggerAutoAdvance();
}, AUTO_PLAY_INTERVAL_MS);
}
function triggerAutoAdvance() {
completePlayRing();
if (isGalleryLoading) {
pendingAutoAdvance = true;
return;
}
attemptAutoAdvance();
}
function attemptAutoAdvance() {
pendingAutoAdvance = false;
if (!isAutoPlay) {
return;
}
if (currentGalleryIndex >= currentGalleryImages.length - 1) {
setAutoPlay(false);
return;
}
const nextUrl = currentGalleryImages[currentGalleryIndex + 1];
const img = new Image();
img.onload = function() {
if (!isAutoPlay) {
return;
}
currentGalleryIndex++;
showGalleryImage(nextUrl);
};
img.onerror = function() {
if (isAutoPlay) {
scheduleAutoPlayCycle();
}
};
img.src = '/media/' + nextUrl;
}
function handlePinchStart(e) {
if (e.touches.length === 2) {
e.preventDefault();
@ -229,18 +546,28 @@ function initGalleryControls() {
const nextButton = document.querySelector('.gallery-next');
const prevButton = document.querySelector('.gallery-prev');
const closeButton = document.getElementById('gallery-close');
const infoButton = document.getElementById('gallery-info');
const playButton = document.getElementById('gallery-play');
if (nextButton) {
nextButton.addEventListener('click', function () {
if (isGalleryLoading) {
return;
}
if (currentGalleryIndex < currentGalleryImages.length - 1) {
currentGalleryIndex++;
showGalleryImage(currentGalleryImages[currentGalleryIndex]);
} else {
closeGalleryModal();
}
});
}
if (prevButton) {
prevButton.addEventListener('click', function () {
if (isGalleryLoading) {
return;
}
if (currentGalleryIndex > 0) {
currentGalleryIndex--;
showGalleryImage(currentGalleryImages[currentGalleryIndex]);
@ -251,6 +578,20 @@ function initGalleryControls() {
if (closeButton) {
closeButton.addEventListener('click', closeGalleryModal);
}
if (infoButton) {
infoButton.addEventListener('click', function (e) {
e.stopPropagation();
toggleExifPanel();
});
}
if (playButton) {
playButton.addEventListener('click', function (e) {
e.stopPropagation();
setAutoPlay(!isAutoPlay);
});
}
}

View File

@ -244,9 +244,13 @@
<!-- Gallery Modal for Images -->
<div id="gallery-modal" style="display: none;">
<button id="gallery-close">x</button>
<button id="gallery-info" aria-expanded="false" aria-controls="gallery-exif">i</button>
<img id="gallery-modal-content" src="" />
<button class="gallery-nav gallery-prev"></button>
<button class="gallery-nav gallery-next"></button>
<button id="gallery-play" aria-pressed="false"></button>
<div id="gallery-exif" aria-live="polite"></div>
<div id="gallery-filename" aria-live="polite"></div>
</div>
<div id="loader-container" style="display: none;">