first version of infinite scrolling

This commit is contained in:
eins
2026-01-23 15:45:28 +00:00
parent 45f9345e9c
commit 9b1041dda7
4 changed files with 262 additions and 67 deletions

View File

@@ -68,6 +68,18 @@ window.requestAnimFrame = (function () {
}
};
// Navbar scroll effect - make background black when scrolling
const navbar = document.querySelector('.navbar');
if (navbar) {
window.addEventListener('scroll', () => {
if (window.scrollY > 50) {
navbar.classList.add('scrolled');
} else {
navbar.classList.remove('scrolled');
}
});
}
const loadItemAjax = async (url, inheritContext = true) => {
console.log("loadItemAjax called with:", url, "inheritContext:", inheritContext);
// Show loading indicator
@@ -335,15 +347,109 @@ window.requestAnimFrame = (function () {
}
// </image-responsive>
// <scroller>
let tts = 0;
const scroll_treshold = 1;
if ([...document.querySelectorAll("div.posts")].length === 1) {
// <infinite-scroll>
const postsContainer = document.querySelector("div.posts");
if (postsContainer) {
// Infinite scroll state
let infiniteState = {
loading: false,
hasMore: true,
currentPage: 1
};
// Extract current page from URL
const pageMatch = window.location.pathname.match(/\/p\/(\d+)/);
if (pageMatch) infiniteState.currentPage = parseInt(pageMatch[1]);
// Extract context (tag/user/mime) from URL
const getContext = () => {
const ctx = {};
const tagMatch = window.location.pathname.match(/\/tag\/([^/]+)/);
if (tagMatch) ctx.tag = decodeURIComponent(tagMatch[1]);
const userMatch = window.location.pathname.match(/\/user\/([^/]+)/);
if (userMatch) ctx.user = decodeURIComponent(userMatch[1]);
const mimeMatch = window.location.pathname.match(/\/(image|audio|video)(?:\/|$)/);
if (mimeMatch) ctx.mime = mimeMatch[1];
return ctx;
};
// Build URL path for history
const buildUrl = (page) => {
const ctx = getContext();
let path = '/';
if (ctx.tag) path += `tag/${ctx.tag}/`;
if (ctx.user) path += `user/${ctx.user}/`;
if (ctx.mime) path += `${ctx.mime}/`;
if (page > 1) path += `p/${page}`;
return path.replace(/\/$/, '') || '/';
};
// Fetch and append more items
const loadMoreItems = async () => {
if (infiniteState.loading || !infiniteState.hasMore) return;
infiniteState.loading = true;
const foot = document.querySelector("div#footbar");
if (foot) {
foot.innerHTML = '<span class="loading-spinner">Loading...</span>';
foot.style.color = 'var(--footbar-color)';
}
const nextPage = infiniteState.currentPage + 1;
const ctx = getContext();
const params = new URLSearchParams();
params.append('page', nextPage);
if (ctx.tag) params.append('tag', ctx.tag);
if (ctx.user) params.append('user', ctx.user);
if (ctx.mime) params.append('mime', ctx.mime);
try {
const response = await fetch(`/ajax/items?${params.toString()}`);
const data = await response.json();
if (data.success && data.html) {
// Append new thumbnails
postsContainer.insertAdjacentHTML('beforeend', data.html);
// Update state
infiniteState.currentPage = data.currentPage;
infiniteState.hasMore = data.hasMore;
// Update URL
history.replaceState({}, '', buildUrl(infiniteState.currentPage));
// Update pagination display if exists
const paginationLinks = document.querySelectorAll('.pagination .pagination-int-item, .pagination .btn');
paginationLinks.forEach(el => {
if (el.textContent.trim() == infiniteState.currentPage) {
el.classList.add('disabled');
}
});
} else {
infiniteState.hasMore = false;
}
} catch (err) {
console.error('Infinite scroll fetch error:', err);
} finally {
infiniteState.loading = false;
if (foot) {
foot.innerHTML = infiniteState.hasMore ? '&#9660;' : '&#8212;';
foot.style.color = 'transparent';
}
}
};
// Scroll detection
let tts = 0;
const scroll_treshold = 1;
document.addEventListener("wheel", e => {
if (!document.querySelector('#main')) return;
if (Math.ceil(window.innerHeight + window.scrollY) >= document.querySelector('#main').offsetHeight && e.deltaY > 0) { // down
if (elem = document.querySelector(".pagination > .next:not(.disabled)")) {
if (Math.ceil(window.innerHeight + window.scrollY) >= document.querySelector('#main').offsetHeight && e.deltaY > 0) {
// Scrolling down at bottom
if (infiniteState.hasMore && !infiniteState.loading) {
if (tts < scroll_treshold) {
const foot = document.querySelector("div#footbar");
if (foot) {
@@ -351,43 +457,25 @@ window.requestAnimFrame = (function () {
foot.style.color = "var(--footbar-color)";
}
tts++;
} else {
loadMoreItems();
tts = 0;
}
else
changePage(elem);
}
}
else if (window.scrollY <= 0 && e.deltaY < 0) { // up
if (elem = document.querySelector(".pagination > .prev:not(.disabled)")) {
if (tts < scroll_treshold) {
const nav = document.querySelector("nav.navbar");
if (nav) {
nav.style.boxShadow = "0px 2px 0px var(--loading-indicator-color)";
nav.style.transition = ".2s ease-in-out";
}
tts++;
}
else
changePage(elem);
}
}
else {
} else if (window.scrollY <= 0 && e.deltaY < 0) {
// Scrolling up at top - could load previous page if needed (optional)
tts = 0;
} else {
tts = 0;
const foot = document.querySelector("div#footbar");
if (foot) {
foot.style.boxShadow = "unset";
foot.style.color = "transparent";
}
const nav = document.querySelector("nav.navbar");
if (nav) nav.style.boxShadow = "unset";
}
});
}
const rmatch = /\/p\/(\d+?)/;
if (document.referrer.match(rmatch) && document.location.href.match(rmatch))
if (document.location.href.match(rmatch) < document.referrer.match(rmatch))
document.body.scrollTop = document.body.scrollHeight;
// </scroller>
// </infinite-scroll>
// <swipe>
const swipeRT = {