2023-02-19 10:28:11 +00:00
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<!DOCTYPE html>
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<html lang="de">
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<head>
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<meta charset="utf-8" />
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<meta name="theme-color" content="#ffffff" />
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2023-02-19 12:41:03 +00:00
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<title>Fotogallerie</title>
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2023-02-19 10:28:11 +00:00
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<script>
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const darkModePreference = window.matchMedia("(prefers-color-scheme: dark)");
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document.querySelector('head meta[name=theme-color]').content = darkModePreference ? '#000' : '#fff';
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</script>
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<style>
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:root {
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--foreground: #000;
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--background: #fff;
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--border-light: #999;
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--border-dark: #000;
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}
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.dark {
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--foreground: #fff;
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--background: #000;
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--border-dark: #999;
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--border-light: #fff;
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}
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body {
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overflow-x: hidden;
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max-width: 100%;
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margin: 0;
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background-color: var(--background);
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color: var(--foreground);
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}
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button {
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border-top: 2px solid var(--border-light);
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border-left: 2px solid var(--border-light);
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border-right: 2px solid var(--border-dark);
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border-bottom: 2px solid var(--border-dark);
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background-color: var(--background);
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color: var(--foreground);
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transition: transform 0.5s ease-in-out;
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cursor: grab;
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}
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button:hover {
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transform: scale(1.1);
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}
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form {
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display: grid;
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grid-template-columns: auto auto 1fr;
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justify-items: left;
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}
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form label {
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grid-column: 1/2;
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}
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form input {
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grid-column: 2/3;
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}
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#headline {
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grid-column: 1/4;
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}
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fieldset {
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grid-row: 6;
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}
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form button[name="submit"] {
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grid-column: 1;
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grid-row: 7;
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margin-top: 8px;
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}
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input[type="number"] {
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max-width: 50px;
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}
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img {
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max-width: 100%;
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width: 100%;
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max-height: 100%;
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object-fit: contain;
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transition-property: translate;
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transition-timing-function: ease-in-out;
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position: absolute;
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}
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.fast {
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transition-duration: 0.5s;
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}
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.normal {
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transition-duration: 1s;
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}
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.slow {
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transition-duration: 2s;
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}
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img.instant {
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transition-duration: 0s;
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transition-delay: 0s;
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}
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.right {
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translate: 200%;
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}
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.left {
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translate: -200%;
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}
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.hidden {
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display: none;
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}
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</style>
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<script>
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document.addEventListener('DOMContentLoaded', () => {
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const controls = document.getElementById('controls');
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initControls(controls);
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const firstImage = document.getElementById('first');
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const secondImage = document.getElementById('second');
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const marginInput = document.getElementById('margin');
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window.showTimeSeconds = 1;
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window.nextPhotoOffset = 0;
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window.shuffle = false;
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window.photoCount = 2;
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window.displayed = [];
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loadNextPhoto(firstImage);
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loadNextPhoto(secondImage);
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marginInput.addEventListener('change', (event) => {
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updateMargins(event.target.value);
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});
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updateMargins(marginInput.value);
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document.addEventListener("keyup", (event) => {
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if (event.isComposing || event.keyCode === 229) {
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return;
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}
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if (controls.elements['submit'].value === 'go') {
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return;
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}
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switch (event.key) {
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case 's':
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controls.classList.toggle('hidden');
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break;
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case ' ':
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if (window.isPaused) {
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const first = document.getElementById('first');
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const second = document.getElementById('second');
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first.style.transitionDelay = window.showTimeSeconds + 's';
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second.style.transitionDelay = window.showTimeSeconds + 's';
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let leftElement, rightElement;
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if (first.className.includes('right')) {
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leftElement = second;
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rightElement = first;
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} else {
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leftElement = first;
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rightElement = second;
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}
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leftElement.classList.add('left');
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rightElement.classList.remove('right');
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window.isPaused = false;
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} else {
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const { left: leftElement, right: rightElement} = getImagePositions();
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leftElement.style.transitionDelay = '0s';
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rightElement.style.transitionDelay = '0s';
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leftElement.classList.remove('left');
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rightElement.classList.add('right');
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window.isPaused = true;
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}
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break;
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case 'ArrowRight':
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const { left: leftElement, right: rightElement} = getImagePositions();
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leftElement.classList.remove('left');
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rightElement.classList.add('right');
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first.style.transitionDelay = '0s';
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second.style.transitionDelay = '0s';
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setTimeout(() => {
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leftElement.classList.add('left');
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rightElement.classList.remove('right');
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setTimeout(() => {
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first.style.transitionDelay = window.showTimeSeconds + 's';
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second.style.transitionDelay = window.showTimeSeconds + 's';
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2023-02-19 12:41:03 +00:00
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}, 50);
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}, 50);
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2023-02-19 10:28:11 +00:00
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break;
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case 'r': {
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window.shuffle = !window.shuffle;
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if (!window.shuffle) {
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window.nextPhotoOffset;
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}
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const searchParams = new URLSearchParams(window.location.search);
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searchParams.set('random', window.shuffle);
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history.pushState(
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null,
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'',
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window.location.pathname + '?' + searchParams.toString()
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);
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document.getElementById('controls').elements['random'].checked = window.shuffle;
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}
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}
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});
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document.querySelectorAll('input[name=theme]')
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.forEach(i => i.addEventListener('change', (e) => setDarkMode(e.target.value === 'dark')));
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controls.addEventListener('submit', (event) => {
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event.preventDefault();
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const data = new FormData(event.target);
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window.showTimeSeconds = parseInt(data.get('showTime'));
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window.shuffle = data.get('random') === 'true';
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const margin = parseInt(data.get('margin'));
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const speed = data.get('speed');
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const theme = data.get('theme');
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window.nextPhotoOffset--;
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loadNextPhoto(secondImage);
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document.querySelectorAll('img').forEach(i => {
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i.classList.remove('normal');
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i.classList.remove('slow');
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i.classList.remove('fast');
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i.classList.add(speed);
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});
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const searchParams = new URLSearchParams(window.location.search);
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searchParams.set('showTime', window.showTimeSeconds);
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searchParams.set('random', window.shuffle);
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searchParams.set('margin', margin);
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searchParams.set('speed', speed);
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searchParams.set('theme', theme);
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history.pushState(
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null,
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'',
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window.location.pathname + '?' + searchParams.toString()
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);
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controls.classList.add('hidden');
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document.getElementById('first').style.transitionDelay = window.showTimeSeconds + 's';
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document.getElementById('second').style.transitionDelay = window.showTimeSeconds + 's';
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if (controls.elements['submit'].value === 'save') {
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return;
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}
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firstImage.classList.remove('hidden');
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secondImage.classList.remove('hidden');
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setTimeout(() => {
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document.getElementById('first').classList.add('left');
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document.getElementById('second').classList.remove('right');
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2023-02-19 12:41:03 +00:00
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}, 50);
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2023-02-19 10:28:11 +00:00
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controls.elements['submit'].value = 'save';
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controls.elements['submit'].innerText = 'Speichern';
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});
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let remainingTransitions = document.querySelectorAll('img').length;
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let delay = 20;
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2023-02-19 10:28:11 +00:00
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addEventListener('transitionend', (event) => {
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if (event.target.tagName !== 'IMG') {
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return;
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}
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remainingTransitions--;
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if (remainingTransitions > 0) {
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return;
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}
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remainingTransitions = document.querySelectorAll('img').length;
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const leftElement = document.querySelector('.left');
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const rightElement = document.querySelector('img:not([class~=left])');
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leftElement.classList.add('instant');
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leftElement.style.transitionDelay = '0s';
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// Wait until 'instant' and transitionDelay are applied
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setTimeout(() => {
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leftElement.classList.remove('left');
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leftElement.classList.add('right');
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// Wait until element is moved
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setTimeout(() => {
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leftElement.classList.remove('instant');
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leftElement.style.transitionDelay = window.showTimeSeconds + 's';
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// Wait until 'instant' is removed and transitionDelay applied
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setTimeout(() => {
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2023-02-19 12:41:03 +00:00
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// Check if the element is in the right place.
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// If not, our client is too slow and needs an additional delay
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if (getComputedStyle(leftElement).translate !== '200%') {
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delay = Math.max(Math.floor(delay * 1.1), delay + 10);
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}
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2023-02-19 10:28:11 +00:00
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leftElement.classList.remove('right');
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rightElement.classList.add('left');
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loadNextPhoto(leftElement);
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2023-02-19 12:41:03 +00:00
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}, delay);
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}, delay);
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}, delay);
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2023-02-19 10:28:11 +00:00
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});
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});
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function loadNextPhoto(element, overwriteOffset) {
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let offset = window.nextPhotoOffset;
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if (window.shuffle) {
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if (window.displayed.length >= window.photoCount * 0.75) {
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window.displayed = [];
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}
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let count = Math.floor(window.photoCount * 0.5);
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do {
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offset = Math.floor(Math.random() * (window.photoCount + 1));
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count--;
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} while (count > 0 && window.displayed.includes(offset));
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}
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if (overwriteOffset !== undefined) {
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offset = overwriteOffset
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}
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const album = (new URLSearchParams(window.location.search)).get('album');
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fetch(`photos.php?album=${album}&offset=${offset}`)
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.then((response) => response.json())
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.then((data) => {
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if (data['error']) {
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console.error('Error fetching photo', data['error']);
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} else {
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document.getElementById('headline').innerText = `Zeige Album: ${data.album}`;
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2023-02-19 12:41:03 +00:00
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document.title = data.album;
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element.src = data.src;
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window.photoCount = data.count;
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window.displayed.push(offset);
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}
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})
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.catch(error => {
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console.error('Error fetching photo', error);
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});
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window.nextPhotoOffset = offset + 1;
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}
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function getImagePositions() {
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const first = document.getElementById('first');
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const second = document.getElementById('second');
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let leftElement, rightElement;
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if (first.className.includes('left')) {
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leftElement = first;
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rightElement = second;
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} else {
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leftElement = second;
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rightElement = first;
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}
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return {
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|
|
|
|
left: leftElement,
|
|
|
|
|
right: rightElement
|
|
|
|
|
};
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
function updateMargins(margin) {
|
|
|
|
|
document.querySelectorAll('img').forEach(i => {
|
|
|
|
|
i.style.margin = margin + 'px';
|
|
|
|
|
i.style.width = `calc(100% - ${2*margin}px)`;
|
|
|
|
|
i.style.maxHeight = `calc(100% - ${2*margin}px)`;
|
|
|
|
|
i.style.maxWidth = `calc(100% - ${2*margin}px)`;
|
|
|
|
|
});
|
|
|
|
|
controls.style.margin = margin + 'px';
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
function initControls(form) {
|
|
|
|
|
const initialParams = new URLSearchParams(window.location.search);
|
|
|
|
|
for (const [key, val] of initialParams.entries()) {
|
|
|
|
|
const input = form.elements[key];
|
|
|
|
|
if (input === undefined) {
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
switch (input.type) {
|
|
|
|
|
case 'checkbox':
|
|
|
|
|
input.checked = val === 'true';
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
input.value = val;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
let theme =initialParams.get('theme');
|
|
|
|
|
if (theme === undefined || theme === null) {
|
|
|
|
|
const darkModePreference = window.matchMedia("(prefers-color-scheme: dark)");
|
|
|
|
|
theme = darkModePreference ? 'dark' : 'light';
|
|
|
|
|
}
|
|
|
|
|
form.elements['theme'].value = theme;
|
|
|
|
|
setDarkMode(theme === 'dark');
|
|
|
|
|
}
|
|
|
|
|
function setDarkMode(mode) {
|
|
|
|
|
if (mode) {
|
|
|
|
|
document.body.classList.add('dark');
|
|
|
|
|
} else {
|
|
|
|
|
document.body.classList.remove('dark');
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
</script>
|
|
|
|
|
</head>
|
|
|
|
|
<body>
|
|
|
|
|
<form id="controls">
|
|
|
|
|
<h3 id="headline">Zeige Album: </h3>
|
|
|
|
|
<label for="random">Zufällig</label>
|
|
|
|
|
<input type="checkbox" name="random" id="random" value="true"/>
|
|
|
|
|
<label for="showTime">Zeit zwischen Bildern (Sekunden)</label>
|
|
|
|
|
<input type="number" name="showTime" id="showTime" value="5" required min=1/>
|
|
|
|
|
<label for="margin">Seitenrand</label>
|
|
|
|
|
<input type="number" name="margin" id="margin" value="30" required min=0/>
|
|
|
|
|
<label for="margin">Animationsgeschwindigkeit</label>
|
|
|
|
|
<select name="speed" id="speed">
|
|
|
|
|
<option value="slow">Langsam</option>
|
|
|
|
|
<option value="normal" selected>Normal</option>
|
|
|
|
|
<option value="fast">Schnell</option>
|
|
|
|
|
</select>
|
|
|
|
|
<fieldset>
|
|
|
|
|
<legend>Hintergrundfarbe</legend>
|
|
|
|
|
<label for="lightRadio">Hell</label>
|
|
|
|
|
<input id="lightRadio" type="radio" name="theme" value="light" />
|
|
|
|
|
<label for="darkRadio">Dunkel</label>
|
|
|
|
|
<input id="darkRadio" type="radio" name="theme" value="dark" />
|
|
|
|
|
</fieldset>
|
|
|
|
|
<button type="submit" name="submit" value="go">Los</button>
|
|
|
|
|
</form>
|
|
|
|
|
<img src="" id="first" class="hidden normal" />
|
|
|
|
|
<img src="" id="second" class="hidden right normal" />
|
|
|
|
|
</body>
|
|
|
|
|
</html>
|
