Inline Quoting for holotower.org
// ==UserScript==
// @name Holotower Inline Quoting
// @namespace http://tampermonkey.net/
// @version 1.0
// @author grem
// @license MIT
// @description Inline Quoting for holotower.org
// @match *://boards.holotower.org/*
// @match *://holotower.org/*
// @grant GM_addStyle
// @grant GM_xmlhttpRequest
// @require https://code.jquery.com/jquery-3.6.0.min.js
// @connect self
// @connect boards.holotower.org
// @icon https://boards.holotower.org/favicon.gif
// @run-at document-start
// ==/UserScript==
/* global $ */
(function() {
'use strict';
const INLINE_CONTAINER_CLASS = 'inline-quote-container';
const INLINE_ACTIVE_LINK_CLASS = 'inline-active';
const LOADING_DATA_ATTR = 'data-inline-loading';
const ERROR_DATA_ATTR = 'data-inline-error';
const TEMP_HIGHLIGHT_CLASS = 'inline-temp-highlight';
const PROCESSED_ATTR = 'data-inline-processed';
const INLINED_ID_ATTR = 'data-inlined-id';
const CLONED_POST_CLASS = 'inline-cloned-post';
const CLONED_HOVER_PREVIEW_ID_PREFIX = 'iq-preview-';
const HOVER_INITIALIZED_ATTR = 'data-iq-hover-init';
const SITE_PREVIEW_BASE_CLASSES = 'post qp';
const SITE_PREVIEW_REPLY_CLASS = 'reply';
const SITE_PREVIEW_OP_CLASS = 'op';
const POST_SELECTOR_ID_FORMAT = (postId) => `div.post[id$='_${postId}']`;
const POTENTIAL_QUOTE_LINK_SELECTOR = "a[onclick*='highlightReply'], a[href*='#q']";
const CLICKABLE_QUOTE_LINK_SELECTOR = "div.post a";
const QUOTE_LINK_REGEX = /^>>(\d+)$/;
const SITE_HOVER_TARGET_SELECTOR = 'div.body a:not([rel="nofollow"]), p.intro a[href*="#"]:not([href="#"])';
const BOARD_CONTEXT_SELECTOR = '[data-board]';
GM_addStyle(`
.${INLINE_CONTAINER_CLASS} { border: 1px dashed var(--subtle-border-color, #888); background-color: var(--inline-background-color, rgba(128,128,128,0.05)); padding: 5px; margin-top: 5px; margin-left: 20px; border-radius: var(--border-radius, 4px); }
.${INLINE_CONTAINER_CLASS}[${INLINED_ID_ATTR}] {}
.${INLINE_CONTAINER_CLASS} > .${CLONED_POST_CLASS}[data-board] { border: none !important; margin: 0 !important; padding: 0 !important; box-shadow: none !important; background: transparent !important; }
a.${INLINE_ACTIVE_LINK_CLASS} { font-weight: bold !important; color: var(--link-hover-color, #d11a1a) !important; opacity: 0.85; text-decoration: underline dotted !important; }
a.${INLINE_ACTIVE_LINK_CLASS}:hover { opacity: 1.0; }
a[${LOADING_DATA_ATTR}="true"]::after { content: " (loading...)"; font-style: italic; color: var(--text-color-muted, #888); margin-left: 4px; }
a[${ERROR_DATA_ATTR}="true"]::after { content: " (not found)"; font-style: italic; color: var(--error-text-color, #f00); margin-left: 4px; }
.${TEMP_HIGHLIGHT_CLASS} { transition: outline 0.1s ease-in-out; outline: 2px solid var(--highlight-color, yellow) !important; outline-offset: 2px; }
div.qp[id^="${CLONED_HOVER_PREVIEW_ID_PREFIX}"] { position: absolute !important; z-index: 150 !important; max-width: 500px; }
div.qp[id^="${CLONED_HOVER_PREVIEW_ID_PREFIX}"] > .post { border: none !important; margin: 0 !important; padding: 0 !important; box-shadow: none !important; background: transparent !important; }
div.qp[id^="${CLONED_HOVER_PREVIEW_ID_PREFIX}"] .hide-post-button,
div.qp[id^="${CLONED_HOVER_PREVIEW_ID_PREFIX}"] .menu-button,
div.qp[id^="${CLONED_HOVER_PREVIEW_ID_PREFIX}"] input[type=checkbox].delete { display: none !important; }
div.qp[id^="${CLONED_HOVER_PREVIEW_ID_PREFIX}"].loading-preview::after { content: "Loading..."; font-style: italic; color: var(--text-color-muted, #888); padding: 5px; display:block; }
div.qp[id^="${CLONED_HOVER_PREVIEW_ID_PREFIX}"].error-preview::after { content: "Not found."; font-style: italic; color: var(--error-text-color, #f00); padding: 5px; display:block; }
`);
function getPostIdFromLink(link) {
if (!link) return null;
const textMatch = link.textContent?.trim().match(QUOTE_LINK_REGEX);
if (textMatch) return textMatch[1];
const hrefMatch = link.getAttribute('href')?.match(/#(\d+)$/);
if (hrefMatch) return hrefMatch[1];
const quoteHrefMatch = link.getAttribute('href')?.match(/#q(\d+)$/);
if (quoteHrefMatch) return quoteHrefMatch[1];
return null;
}
function fetchPostHtml(url) {
const fetchUrl = url?.split('#')[0];
if (!fetchUrl) return Promise.resolve(null);
return new Promise((resolve) => {
GM_xmlhttpRequest({
method: "GET",
url: fetchUrl,
onload: r => { (r.status >= 200 && r.status < 300) ? resolve(r.responseText) : resolve(null); },
onerror: r => { resolve(null); },
ontimeout: () => { resolve(null); }
});
});
}
function parseAndFindPost(html, postId) {
try {
const parser = new DOMParser();
const doc = parser.parseFromString(html, 'text/html');
const postElement = doc.querySelector(POST_SELECTOR_ID_FORMAT(postId));
return postElement;
} catch (error) {
return null;
}
}
function isElementInViewportStrict(el) {
if (!el) return false;
const rect = el.getBoundingClientRect();
return rect.top < window.innerHeight && rect.bottom > 0 && rect.left < window.innerWidth && rect.right > 0;
}
function temporaryHighlight(el) {
if (!el) return;
$(el).addClass(TEMP_HIGHLIGHT_CLASS);
setTimeout(() => { $(el).removeClass(TEMP_HIGHLIGHT_CLASS); }, 500);
}
function processLinks(parentElement) {
if (!parentElement) return;
const links = parentElement.querySelectorAll(POTENTIAL_QUOTE_LINK_SELECTOR);
links.forEach(link => {
if (!link.hasAttribute(PROCESSED_ATTR)) {
const onclickValue = link.getAttribute('onclick');
if (onclickValue && onclickValue.includes('highlightReply')) {
link.removeAttribute('onclick');
}
link.setAttribute(PROCESSED_ATTR, 'true');
}
});
}
async function handleInlineQuoteClick(linkElement, postId) {
const $link = $(linkElement);
const $parentPost = $link.closest('div.post');
const $insertionTarget = $parentPost;
const $nextElement = $insertionTarget.next();
const isAlreadyInlined = $nextElement.hasClass(INLINE_CONTAINER_CLASS) && $nextElement.attr(INLINED_ID_ATTR) === postId;
if (isAlreadyInlined) {
$nextElement.remove();
$link.removeClass(INLINE_ACTIVE_LINK_CLASS).removeAttr(LOADING_DATA_ATTR).removeAttr(ERROR_DATA_ATTR);
} else {
closeOtherInlinePosts($link);
const ancestorContainers = $link.parents(`.${INLINE_CONTAINER_CLASS}`);
if (ancestorContainers.length > 0 && ancestorContainers.is(`[${INLINED_ID_ATTR}="${postId}"]`)) {
temporaryHighlight(ancestorContainers.filter(`[${INLINED_ID_ATTR}="${postId}"]`).first()[0]);
return;
}
const originalPostElement = document.querySelector(POST_SELECTOR_ID_FORMAT(postId));
if (originalPostElement && isElementInViewportStrict(originalPostElement)) {
temporaryHighlight(originalPostElement);
return;
}
$link.addClass(INLINE_ACTIVE_LINK_CLASS).attr(LOADING_DATA_ATTR, "true");
let targetPostElement = originalPostElement;
let boardValue = null;
const $linkContext = $link.closest(BOARD_CONTEXT_SELECTOR);
if ($linkContext.length > 0) boardValue = $linkContext.data('board');
else if (originalPostElement) {
const $targetContext = $(originalPostElement).closest(BOARD_CONTEXT_SELECTOR);
if ($targetContext.length > 0) boardValue = $targetContext.data('board');
}
if (!targetPostElement && linkElement.href) {
const postHtml = await fetchPostHtml(linkElement.href);
if (postHtml) {
const parsed = parseAndFindPost(postHtml, postId);
if (parsed) targetPostElement = parsed;
}
}
$link.removeAttr(LOADING_DATA_ATTR);
if (targetPostElement) {
const $container = $('<div>').addClass(INLINE_CONTAINER_CLASS).attr(INLINED_ID_ATTR, postId);
const clonedPost = targetPostElement.cloneNode(true);
clonedPost.removeAttribute('id');
clonedPost.querySelectorAll('[id]').forEach(el => el.removeAttribute('id'));
clonedPost.classList.add(CLONED_POST_CLASS);
if (boardValue) clonedPost.setAttribute('data-board', boardValue);
else clonedPost.setAttribute('data-board-missing', 'true');
$container.append(clonedPost);
$insertionTarget.after($container);
initializeInlineHover(clonedPost);
} else {
$link.attr(ERROR_DATA_ATTR, "true").removeClass(INLINE_ACTIVE_LINK_CLASS);
setTimeout(() => { $link.removeAttr(ERROR_DATA_ATTR); }, 3000);
}
}
}
function closeOtherInlinePosts($triggerLink) {
$(`.${INLINE_CONTAINER_CLASS}`).each(function() {
const $container = $(this);
const isAncestor = $triggerLink.closest($container).length > 0;
if (isAncestor) return;
const $parentPost = $container.prev('div.post');
if ($parentPost.length === 0) return;
const $possibleLink = $parentPost.find(`a.${INLINE_ACTIVE_LINK_CLASS}`);
if ($possibleLink.length > 0 && !$possibleLink.is($triggerLink)) {
$container.remove();
$possibleLink.removeClass(INLINE_ACTIVE_LINK_CLASS).removeAttr(LOADING_DATA_ATTR).removeAttr(ERROR_DATA_ATTR);
}
});
}
function initializeInlineHover(parentElement) {
$(parentElement).find(SITE_HOVER_TARGET_SELECTOR).each(function() {
const $link = $(this);
if ($link.attr(HOVER_INITIALIZED_ATTR)) return;
let $preview = null;
let targetPostId = null;
let currentBoard = $(parentElement).closest(BOARD_CONTEXT_SELECTOR).data('board') || null;
let fetchController = null;
let mouseMoveTimer = null;
function updatePreviewPosition(e) {
if (!$preview) return;
let top = e.pageY + 10; let left = e.pageX + 10;
const win = $(window); const winHeight = win.height(); const winWidth = win.width();
const previewHeight = $preview.outerHeight(); const previewWidth = $preview.outerWidth();
const scrollTop = win.scrollTop(); const scrollLeft = win.scrollLeft();
if (previewHeight > 0 && top + previewHeight > scrollTop + winHeight) top = e.pageY - previewHeight - 10;
if (top < scrollTop) top = scrollTop + 5;
if (previewWidth > 0 && left + previewWidth > scrollLeft + winWidth) left = e.pageX - previewWidth - 10;
if (left < scrollLeft) left = scrollLeft + 5;
$preview.css({ top: top, left: left });
}
function preparePreviewContent(sourceElement) {
const clonedContent = sourceElement.cloneNode(true);
clonedContent.removeAttribute('id'); clonedContent.querySelectorAll('[id]').forEach(el => el.removeAttribute('id'));
return clonedContent;
}
function createPreviewDiv(sourceElement, postId) {
$(`div[id^="${CLONED_HOVER_PREVIEW_ID_PREFIX}"]`).remove();
const $previewContainer = $('<div>')
.addClass(SITE_PREVIEW_BASE_CLASSES)
.attr('id', CLONED_HOVER_PREVIEW_ID_PREFIX + postId)
.appendTo('body');
if (sourceElement) {
if (sourceElement.classList.contains(SITE_PREVIEW_REPLY_CLASS)) $previewContainer.addClass(SITE_PREVIEW_REPLY_CLASS);
else if (sourceElement.classList.contains(SITE_PREVIEW_OP_CLASS)) $previewContainer.addClass(SITE_PREVIEW_OP_CLASS);
$previewContainer.append(preparePreviewContent(sourceElement));
}
return $previewContainer;
}
$link.on('mouseenter.iqhover', function(e) {
if ($link.hasClass(INLINE_ACTIVE_LINK_CLASS)) return;
targetPostId = getPostIdFromLink(this);
if (!targetPostId || !currentBoard) return;
$(`div[id^="${CLONED_HOVER_PREVIEW_ID_PREFIX}"]`).remove();
const originalPostElement = document.querySelector(POST_SELECTOR_ID_FORMAT(targetPostId));
if (originalPostElement && $(originalPostElement).closest(BOARD_CONTEXT_SELECTOR).data('board') === currentBoard) {
$preview = createPreviewDiv(originalPostElement, targetPostId);
updatePreviewPosition(e);
} else {
const url = $link.attr('href'); if (!url) return;
$preview = createPreviewDiv(null, targetPostId);
$preview.addClass('loading-preview');
updatePreviewPosition(e);
if (fetchController) fetchController.abort();
const controller = new AbortController(); fetchController = controller;
const fetchUrl = url.split('#')[0];
GM_xmlhttpRequest({
method: "GET", url: fetchUrl, signal: controller.signal,
onload: function(response) {
if (controller.signal.aborted) return; fetchController = null;
if (response.status >= 200 && response.status < 300) {
const fetchedPostElement = parseAndFindPost(response.responseText, targetPostId);
if (fetchedPostElement) { if ($preview) { $preview.empty().removeClass('loading-preview loading-error').addClass(SITE_PREVIEW_BASE_CLASSES); if(fetchedPostElement.classList.contains(SITE_PREVIEW_REPLY_CLASS)) $preview.addClass(SITE_PREVIEW_REPLY_CLASS); else if(fetchedPostElement.classList.contains(SITE_PREVIEW_OP_CLASS)) $preview.addClass(SITE_PREVIEW_OP_CLASS); $preview.append(preparePreviewContent(fetchedPostElement)); updatePreviewPosition(e); } }
else { if ($preview) $preview.empty().removeClass('loading-preview').addClass('error-preview'); }
} else { if ($preview) $preview.empty().removeClass('loading-preview').addClass('error-preview'); }
},
onerror: function(response) { if (controller.signal.aborted) return; fetchController = null; if ($preview) $preview.empty().removeClass('loading-preview').addClass('error-preview'); },
ontimeout: function() { if (controller.signal.aborted) return; fetchController = null; if ($preview) $preview.empty().removeClass('loading-preview').addClass('error-preview'); }
});
}
}).on('mouseleave.iqhover', function(e) {
if (fetchController) { fetchController.abort(); fetchController = null; }
if ($preview) { $preview.remove(); $preview = null; }
targetPostId = null;
}).on('mousemove.iqhover', function(e) {
clearTimeout(mouseMoveTimer);
mouseMoveTimer = setTimeout(() => { updatePreviewPosition(e); }, 20);
}).attr(HOVER_INITIALIZED_ATTR, 'true');
});
}
document.documentElement.addEventListener('click', function(event) {
const linkElement = event.target.closest('a');
if (!linkElement) return;
const postId = getPostIdFromLink(linkElement);
if (!postId || !QUOTE_LINK_REGEX.test(linkElement.textContent?.trim() || '')) return;
event.preventDefault(); event.stopImmediatePropagation();
handleInlineQuoteClick(linkElement, postId);
}, true);
$(document).on('mouseenter', SITE_HOVER_TARGET_SELECTOR, function(event) {
const linkElement = event.currentTarget;
if ($(linkElement).hasClass(INLINE_ACTIVE_LINK_CLASS)) {
if ($(event.target).closest(`div[id^="${CLONED_HOVER_PREVIEW_ID_PREFIX}"]`).length > 0) return;
event.stopImmediatePropagation();
}
});
$(document).on('mouseleave', SITE_HOVER_TARGET_SELECTOR, function(event) {
const linkElement = event.currentTarget;
if ($(linkElement).hasClass(INLINE_ACTIVE_LINK_CLASS)) {
if ($(event.relatedTarget).closest(`div[id^="${CLONED_HOVER_PREVIEW_ID_PREFIX}"]`).length > 0) return;
event.stopImmediatePropagation();
}
});
function runInitialProcessing() {
if (!document.body) return;
processLinks(document.body);
}
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', runInitialProcessing);
} else {
runInitialProcessing();
}
const observer = new MutationObserver(mutations => {
if (!document.body) return;
mutations.forEach(mutation => {
if (mutation.addedNodes.length) {
mutation.addedNodes.forEach(node => {
if (node.nodeType === Node.ELEMENT_NODE) {
if (node.matches(POTENTIAL_QUOTE_LINK_SELECTOR) || node.querySelector(POTENTIAL_QUOTE_LINK_SELECTOR)) {
processLinks(node);
}
let containerNode = null;
if (node.matches && node.matches(`.${INLINE_CONTAINER_CLASS}`)) containerNode = node;
else if (node.querySelector) containerNode = node.querySelector(`.${INLINE_CONTAINER_CLASS}`);
if(containerNode) {
const clonedPostElement = containerNode.querySelector(`.${CLONED_POST_CLASS}`);
if (clonedPostElement) initializeInlineHover(clonedPostElement);
}
}
});
}
});
});
observer.observe(document.documentElement, { childList: true, subtree: true });
})();