<!DOCTYPE htm>
<!-- Copyright (C) 2021 Alexander Rosenberg
- This file is AGPL v3. See LICENSE file for more information
-->
<html>
<?php
require 'options.php';
require 'library.php';
require 'Album.php';
if ($_SERVER['REQUEST_METHOD'] != 'GET' && $_SERVER['REQUEST_METHOD'] != 'HEAD') {
http_response_code(406);
display_error_message('Request method not supported');
exit(0);
}
if (!isset($_GET['album']) || !in_array($_GET['album'], $LIBRARY_INFO['albums'])) {
http_response_code(404);
display_error_message('No album specified');
exit(0);
}
$album = new Album($_GET['album']);
if (!$album->is_valid()) {
http_response_code(404);
display_error_message('Album not found');
exit(0);
}
if (count($album->get_images()) == 0) {
http_response_code(400);
display_error_message('Album empty');
exit(0);
}
$image = 0;
if (isset($_GET['image'])) {
$image = $_GET['image'];
if (!ctype_digit($image)) {
http_response_code(404);
display_error_message('Image not found in album');
exit(0);
} else if ($image >= count($album->get_images())) {
$image = count($album->get_images()) - 1;
}
}
?>
<head>
<title><?php echo htmlspecialchars($album->get_title() . ' - ' . $LIBRARY_INFO['name'], ENT_QUOTES | ENT_HTML5); ?></title>
<link rel="stylesheet" href="global.css" />
<link rel="stylesheet" href="view.css" />
<link rel="stylesheet" href="Album.css" />
<link rel="icon" type="image/svg" href="favicon.svg" />
</head>
<body>
<a id="close-button" href="/">X</a>
<div id="info-button-wrapper">
<a id="download-button" title="Download image" download><img id="download-button-image" src="download-button.svg" /></a>
<div id="info-button" title="Image info" tabindex="0" onclick="show_metadata_window()">i</div>
<img id="size-button" title="Toggle HD view" tabindex="0" onclick="toggle_size()" src="sd.svg" />
<img id="expand-button" title="Toggle sidebar" tabindex="0" onclick="toggle_expand()" src="expand-button.svg" />
</div>
<div id="album-title"><?php echo htmlspecialchars($album->get_title(), ENT_QUOTES | ENT_HTML5); ?></div>
<div id="sidebar-wrapper">
<div id="sidebar">
<?php
foreach ($album->get_images() as $i) {
echo $album->get_image_entry($i);
}
?>
</div>
</div>
<div id="image-and-info-wrapper">
<div id="main-image-wrapper">
<img class="main-viewer" id="main-image" onload="media_load_handler()" />
<video style="display: none;" class="main-viewer" id="main-video" onload="media_load_handler()" controls></video>
<img style="display: none;" id="main-audio-image" src="music-icon.svg"/>
<audio style="display: none;" class="main-viewer" id="main-audio" onload="media_load_handler()" controls></audio>
<div id="loading-overlay">
<div id="loading-text">Loading...</div>
</div>
</div>
<div id="image-nav-wrapper">
<div id="prev-image-button" onclick="change_image(-1)" tabindex="0"><</div>
<div id="current-image-text"><?php echo htmlspecialchars($image + 1 . ' / ' . count($album->get_images()), ENT_QUOTES | ENT_HTML5); ?></div>
<div id="next-image-button" onclick="change_image(1)" tabindex="0">></div>
</div>
<div id="image-description"></div>
</div>
<div id="metadata-window">
<div id="close-metadata-window-button-wrapper">
<div id="close-metadata-window-button" onclick="hide_metadata_window()">X</div>
</div>
<div class="metadata-prop-wrapper">
<div class="metadata-prop-desc" id="date-prop-name">Date Taken:</div>
<div class="metadata-prop-value" id="date-prop"></div>
</div>
<div class="metadata-prop-wrapper">
<div class="metadata-prop-desc" id="time-prop-name">Time Taken:</div>
<div class="metadata-prop-value" id="time-prop"></div>
</div>
<div class="metadata-prop-wrapper">
<div class="metadata-prop-desc">File Name:</div>
<div class="metadata-prop-value" id="file-name-prop"></div>
</div>
<div class="metadata-prop-wrapper">
<div class="metadata-prop-desc" id="type-prop-name">Image Type:</div>
<div class="metadata-prop-value" id="image-type-prop"></div>
</div>
<div class="metadata-prop-wrapper">
<div class="metadata-prop-desc">File Size:</div>
<div class="metadata-prop-value" id="file-size-prop"></div>
</div>
<div class="metadata-prop-wrapper" id="res-prop-wrapper">
<div class="metadata-prop-desc" id="res-prop-name">Image Size:</div>
<div class="metadata-prop-value" id="image-size-prop"></div>
</div>
<div id="map-wrapper">
<iframe id="metadata-map" width="100%" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" style="border: 1px solid black; height: 40vh;"></iframe>
<div id="source-links">
<a class="metadata-link" id="view-map-link" target="_blank">View Larger Map</a>
·
<a class="metadata-link" target="_blank" href="https://www.gnu.org/licenses/agpl-3.0.en.html">Page License</a>
·
<a class="metadata-link" target="_blank" href="https://gitlab.com/zander671/art-museum">Page Source</a>
</div>
</div>
</div>
<script type="text/javascript">
var PAGE_SIZE = Math.floor((window.innerHeight * 0.8) / 75) * 2;
const MAX_IMAGES = <?php echo count($album->get_images()); ?>;
const MAP_BASE_URL = "https://www.openstreetmap.org/#map=16/";
var jump_count = 0;
var current_image = <?php echo $image; ?>;
var img_lat = 0;
var img_lon = 0;
var full_size = false;
var enable_touch = false;
var expanded = false;
var album_title = document.getElementById('album-title');
var info_button = document.getElementById('info-button');
var info_button_wrapper = document.getElementById('info-button-wrapper');
var download_button_image = document.getElementById('download-button-image');
var expand_button = document.getElementById('expand-button');
var size_button = document.getElementById('size-button');
var album_title = document.getElementById('album-title');
var image_and_info_wrapper = document.getElementById('image-and-info-wrapper');
var main_image_wrapper = document.getElementById('main-image-wrapper');
var main_image = document.getElementById('main-image');
var main_video = document.getElementById('main-video');
var main_audio = document.getElementById('main-audio');
var main_audio_image = document.getElementById('main-audio-image');
var download_button = document.getElementById('download-button');
var sidebar = document.getElementById('sidebar');
var sidebar_wrapper = document.getElementById('sidebar-wrapper');
var prev_image_button = document.getElementById('prev-image-button');
var next_image_button = document.getElementById('next-image-button');
var current_image_text = document.getElementById('current-image-text');
var image_description = document.getElementById('image-description');
var date_prop_name = document.getElementById('date-prop-name');
var date_prop = document.getElementById('date-prop');
var time_prop_name = document.getElementById('time-prop-name');
var time_prop = document.getElementById('time-prop');
var file_name_prop = document.getElementById('file-name-prop');
var image_type_prop = document.getElementById('image-type-prop');
var file_size_prop = document.getElementById('file-size-prop');
var image_size_prop = document.getElementById('image-size-prop');
var map_wrapper = document.getElementById('map-wrapper');
var map_elem = document.getElementById('metadata-map');
var view_map_link = document.getElementById('view-map-link');
var metadata_window = document.getElementById('metadata-window');
var type_prop_name = document.getElementById('type-prop-name');
var res_prop_name = document.getElementById('res-prop-name');
var res_prop_wrapper = document.getElementById('res-prop-wrapper');
var loading_overlay = document.getElementById('loading-overlay');
/* the following 2 functions source:
https://stackoverflow.com/questions/57776001/how-to-detect-ipad-pro-as-ipad-using-javascript */
function isIOS() {
if (/iPad|iPhone|iPod/.test(navigator.platform)) {
return true;
} else {
return navigator.maxTouchPoints &&
navigator.maxTouchPoints > 2 &&
/MacIntel/.test(navigator.platform);
}
}
function isIpadOS() {
return navigator.maxTouchPoints &&
navigator.maxTouchPoints > 2 &&
/MacIntel/.test(navigator.platform);
}
function show_metadata_window() {
metadata_window.style.display = "initial";
}
function hide_metadata_window() {
set_map_location(img_lat, img_lon);
metadata_window.style.display = "none";
}
function get_map_source_string(lat, lon, zoom = 15) {
return "https://www.openstreetmap.org/export/embed.html?bbox=" + lon + "," + lat + "," + lon + "," + lat + "&layer=mapnik&marker=" + lat + "," + lon;
}
function get_map_href_string(lat, lon, zoom = 15) {
return "http://www.openstreetmap.org/?mlat=" + lat + "&mlon=" + lon + "&layers=M#map=" + zoom + "/" + lat + "/" + lon;
}
function set_map_location(lat, lon, zoom = 15) {
map_elem.src = get_map_source_string(lat, lon, zoom);
view_map_link.href = get_map_href_string(lat, lon, zoom);
}
function deg_to_dec(loc) {
return (+loc[0]) + (loc[1] / 60) + (loc[2] / 3600);
}
function image_ready(ie) {
return ie.complete;
}
// Main image must be fully loaded
function update_image_metadata(ie) {
if (!image_ready(ie)) {
ie.onload = function() { update_image_metadata(ie) };
} else {
date_prop_name.textContent = 'Date Taken: ';
time_prop_name.textContent = 'Time Taken: ';
type_prop_name.textContent = 'Image Type: ';
res_prop_wrapper.style.display = 'flex';
res_prop_name.textContent = 'Image Size: ';
image_description.textContent = ie.parentElement.getAttribute('data-desc');
var date = ie.parentElement.getAttribute('data-date');
if (date === '') {
date = 'Unknown';
}
var time = ie.parentElement.getAttribute('data-time');
if (time === '') {
time = 'Unknown';
}
date_prop.textContent = date;
time_prop.textContent = time;
var lat = ie.parentElement.getAttribute('data-lat');
var lon = ie.parentElement.getAttribute('data-lon');
if (lat === '' || lon === '') {
map_wrapper.style.display = "none";
} else {
img_lat = lat;
img_lon = lon;
set_map_location(img_lat, img_lon);
map_wrapper.style.display = "initial";
}
file_name_prop.textContent = ie.parentElement.getAttribute('data-name');
file_size_prop.textContent = ie.parentElement.getAttribute('data-size') + " B";
image_type_prop.textContent = ie.parentElement.getAttribute('data-type');
image_size_prop.textContent = ie.getAttribute('data-size');
}
}
function video_ready(ve) {
return ve.readyState > 3;
}
// Main video must be fully loaded
function update_video_metadata(ve) {
if (!video_ready(ve)) {
ve.onloadedmetadata = function () { update_video_metadata(ve) };
} else {
date_prop_name.textContent = 'Date Recorded: ';
time_prop_name.textContent = 'Time Recorded: ';
type_prop_name.textContent = 'Video Type: ';
res_prop_wrapper.style.display = 'flex';
res_prop_name.textContent = 'Video Size: ';
image_description.textContent = ve.parentElement.getAttribute('data-desc');
var date = ve.parentElement.getAttribute('data-date');
if (date === '') {
date = 'Unknown';
}
var time = ve.parentElement.getAttribute('data-time');
if (time === '') {
time = 'Unknown';
}
date_prop.textContent = date;
time_prop.textContent = time;
var lat = ve.parentElement.getAttribute('data-lat');
var lon = ve.parentElement.getAttribute('data-lon');
if (lat === '' || lon === '') {
map_wrapper.style.display = "none";
} else {
img_lat = lat;
img_lon = lon;
set_map_location(img_lat, img_lon);
map_wrapper.style.display = "initial";
}
file_name_prop.textContent = ve.parentElement.getAttribute('data-name');
file_size_prop.textContent = ve.parentElement.getAttribute('data-size') + " B";
image_type_prop.textContent = ve.parentElement.getAttribute('data-type');
image_size_prop.textContent = ve.videoWidth + "x" + ve.videoHeight;
}
}
function audio_ready(ae) {
return ae.readyState > 2;
}
// Main video must be fully loaded
function update_audio_metadata(ae) {
if (!audio_ready(ae)) {
ae.onloadedmetadata = function () { update_video_metadata(ae) };
} else {
date_prop_name.textContent = "Date Recorded: ";
time_prop_name.textContent = "Time Recorded: ";
type_prop_name.textContent = 'Audio Type: ';
res_prop_wrapper.style.display = 'none';
res_prop_name.textContent = 'Audio Duration: ';
image_description.textContent = ae.parentElement.getAttribute('data-desc');
var date = ae.parentElement.getAttribute('data-date');
if (date === '') {
date = 'Unknown';
}
var time = ae.parentElement.getAttribute('data-time');
if (time === '') {
time = 'Unknown';
}
date_prop.textContent = date;
time_prop.textContent = time;
var lat = ae.parentElement.getAttribute('data-lat');
var lon = ae.parentElement.getAttribute('data-lon');
if (lat === '' || lon === '') {
map_wrapper.style.display = "none";
} else {
img_lat = lat;
img_lon = lon;
set_map_location(img_lat, img_lon);
map_wrapper.style.display = "initial";
}
file_name_prop.textContent = ae.parentElement.getAttribute('data-name');
file_size_prop.textContent = ae.parentElement.getAttribute('data-size') + " B";
image_type_prop.textContent = ae.parentElement.getAttribute('data-type');
}
}
function get_time_string(dur) {
var h = Math.floor(dur / 3600);
dur -= h * 3600;
var m = Math.floor(dur / 60);
dur -= m * 60;
var s = Math.round(dur);
if (!(h <= 0)) {
return h + "h " + m + "m " + s + "s";
} else if (!(m <= 0)) {
return m + "m " + s + "s";
} else {
return s + "s";
}
}
// Handle resize stuff
function windowResizeHandler() {
if (!isIpadOS() && window.innerWidth < 1000) {
document.querySelectorAll('.sidebar-image-wrapper').forEach((e) => {
e.style.width = "30vw";
e.style.height = "30vw";
});
sidebar_wrapper.style.width = "100%";
main_image_wrapper.style.height = 'initial';
main_image_wrapper.style.marginTop = '2em';
metadata_window.style.width = "80vw";
map_elem.style.height = '60vh';
album_title.style.marginTop = '2em';
enable_touch = true;
} else {
document.querySelectorAll('.sidebar-image-wrapper').forEach((e) => {
e.style.width = "10vw";
e.style.height = "10vw";
});
sidebar_wrapper.style.width = "initial";
main_image_wrapper.style.height = '76vh';
main_image_wrapper.style.marginTop = '0';
metadata_window.style.width = "40vw";
album_title.style.marginTop = '0';
map_elem.style.height = '40vh';
enable_touch = false;
}
info_button.style.width = info_button.offsetHeight + 'px';
download_button_image.style.width = info_button.offsetHeight + 'px';
download_button_image.style.height = info_button.offsetHeight + 'px';
download_button.style.display = "initial";
expand_button.style.width = info_button.offsetHeight + 'px';
expand_button.style.height = info_button.offsetHeight + 'px';
expand_button.style.display = "initial";
size_button.style.width = info_button.offsetHeight + 'px';
size_button.style.height = info_button.offsetHeight + 'px';
size_button.style.display = "initial";
info_button_wrapper.style.visibility = "initial";
}
window.addEventListener("resize", windowResizeHandler, true);
window.addEventListener("load", windowResizeHandler, true);
function media_load_handler() {
if (jump_count != 0) {
set_main_image(current_image + jump_count);
jump_count = 0;
} else {
loading_overlay.style.display = "none";
}
}
function change_image(ammount) {
if (!video_ready(main_video) && !audio_ready(main_audio) && !image_ready(main_image)) {
jump_count += ammount;
} else {
set_main_image(current_image + ammount);
}
}
// Loading images
function set_main_image(image, do_scroll = false, do_metadata = true) {
loading_overlay.style.display = "revert";
if (image < 0 || image >= MAX_IMAGES) {
return;
}
current_image = image;
var ie = sidebar.children[image].firstChild;
if (main_video.innerHTML !== "") {
main_video.pause();
} else if (main_audio.innerHTML !== "") {
main_audio.pause();
}
main_video.innerHTML = "";
main_audio.innerHTML = "";
main_image.style.display = "none";
main_video.style.display = "none";
main_audio.style.display = "none";
main_audio_image.style.display = "none";
if (ie.getAttribute('data-audiotype') !== null) {
var type = ie.getAttribute('data-audiotype');
var path = ie.getAttribute('data-audiopath');
main_audio.innerHTML = '<source src="' + path + '" type="' + type + '" />';
if (do_metadata) {
update_audio_metadata(ie);
}
download_button.href = path;
main_audio.load();
main_audio.style.display = "initial";
main_audio_image.style.display = "initial";
} else if (ie.getAttribute('data-videopath') !== null) {
var ds = ie.getAttribute('data-videopath');
var dt = ie.getAttribute('data-type');
main_video.innerHTML = '<source src="' + ds + '" type="' + dt + '" />';
if (do_metadata) {
update_video_metadata(ie);
}
download_button.href = ds;
main_video.load();
main_video.style.display = "initial";
} else {
var ds;
if (full_size) {
ds = 'albums/' + ie.getAttribute('data-src');
} else {
ds = 'thumbnails/large/' + ie.getAttribute('data-src');
}
main_image.src = ds;
if (do_metadata) {
update_image_metadata(ie);
}
download_button.href = ds;
main_image.style.display = "initial";
}
current_image_text.textContent = (image + 1) + ' / ' + MAX_IMAGES;
if (image == 0) {
prev_image_button.style.visibility = "hidden";
} else {
prev_image_button.style.visibility = "visible";
}
if (image == MAX_IMAGES - 1) {
next_image_button.style.visibility = "hidden";
} else {
next_image_button.style.visibility = "visible";
}
window.history.replaceState('', '', '?album=<?php echo htmlspecialchars($_GET['album'],
ENT_QUOTES | ENT_HTML5); ?>&image=' + image);
if (do_scroll) {
var w = sidebar.children[image];
w.scrollIntoView(true);
}
}
function load_entry_media(elem) {
if (elem.getAttribute('data-visible') !== null) {
me = elem.firstChild;
if (me.getAttribute('data-audiotype') !== null) {
// Audio does not require work
} else if (me instanceof HTMLImageElement) {
// Image
me.src = 'thumbnails/small/' + me.getAttribute('data-src');
}
me.style.display = "initial";
}
}
function image_scroll_callback(entries, observer) {
entries.forEach((entry) => {
var elem = entry.target;
if (entry.isIntersecting) {
elem.setAttribute('data-visible', '');
setTimeout(load_entry_media, 250, elem);
observer.unobserve(elem);
} else {
elem.removeAttribute('data-visible');
}
});
}
var io = new IntersectionObserver(image_scroll_callback, { root: sidebar });
for (i = 0; i < sidebar.children.length; ++i) {
io.observe(sidebar.children[i]);
}
set_main_image(current_image, true);
// Key press and swipe
window.onkeydown = function (gfg) {
if (gfg.keyCode == 37 /* left */) {
set_main_image(current_image - 1, true);
} else if (gfg.keyCode == 39 /* right */) {
set_main_image(current_image + 1, true);
}
}
var touchstartX = 0;
var touchendX = 0;
function handleSwipes() {
if (enable_touch) {
if (touchendX < touchstartX) {
set_main_image(current_image + 1, true);
} else if (touchendX > touchstartX) {
set_main_image(current_image - 1, true);
}
main_image_wrapper.scrollIntoView(true);
}
}
main_image_wrapper.addEventListener('touchstart', e => {
touchstartX = e.changedTouches[0].screenX;
});
main_image_wrapper.addEventListener('touchend', e => {
touchendX = e.changedTouches[0].screenX;
handleSwipes();
});
function toggle_expand() {
if (expanded) {
sidebar_wrapper.style.display = 'flex';
image_and_info_wrapper.style.width = '70vw';
image_and_info_wrapper.style.height = 'max-content';
image_and_info_wrapper.style.marginLeft = '2vw';
expand_button.src = 'expand-button.svg';
} else {
sidebar_wrapper.style.display = 'none';
image_and_info_wrapper.style.width = '100%';
image_and_info_wrapper.style.height = '100%';
image_and_info_wrapper.style.marginLeft = '0';
expand_button.src = 'contract-button.svg';
}
expanded = !expanded;
}
function toggle_size() {
full_size = !full_size;
if (full_size) {
size_button.src = "hd.svg"
} else {
size_button.src = "sd.svg"
}
set_main_image(current_image, false, false);
}
</script>
</body>
</html>