// ==UserScript==
// @name torrentday-thumbnailer-in-background.js
// @namespace SleazeScripts
// @match https://torrentday.com/t*
// @match https://www.torrentday.com/t*
// @icon 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// @grant none
// @version 2024-04-20.2
// @author Sleaze <root@dev.null>
// @description Adds a toggle button to torrentday.com torrent listing pages. When enabled, adds thumbnail image previews to the torrent listing table. On hover over a thumbnail, the expanded images are shown in a box up top.
// @license MIT
// ==/UserScript==
'use strict';
// LocalStorageLRU Source: https://github.com/sagemathinc/local-storage-lru
// n.b. Included inline because I couldn't figure out how to get the @require working.
//// @require http://unpkg.com/lru-cache@9/dist/mjs/index.min.mjs
// -----------------------------------------------------------------------------------
// BEGIN LocalStorageLRU
// -----------------------------------------------------------------------------------
/**
* LocalStorageLRU
* Copyright 2022 SageMath, Inc.
* Licensed under the Apache License, Version 2.0
*/
//const local_storage_fallback_1 = require("./local-storage-fallback");
// additionally, each one of them gets `typePrefixDelimiter` as a postfix,
// to further distinguish them from other (pure string) values.
const DEFAULT_TYPE_PREFIXES = {
date: '\x00\x01date',
bigint: '\x00\x02bigint',
object: '\x00\x03object',
int: '\x00\x04int',
float: '\x00\x05float',
};
/**
* Use an instance of this class to access localStorage – instead of using it directly.
* You will no longer end up with random exceptions upon setting a key/value pair.
* Instead, if there is a problem, it will remove a few entries and tries setting the value again.
* Recently used entries won't be removed and you can also specify a function to filter potential candidates for deletion.
*
* **Important** do not use index accessors – use `get` and `set` instead.
*/
class LocalStorageLRU {
/**
* You can tweak several details of the behavior of this class, check out {@link Props} for more information.
*
* By default, no tweaking is required.
*/
constructor(props) {
this.maxSize = props?.maxSize ?? 64;
this.isCandidate = props?.isCandidate;
this.recentKey = props?.recentKey ?? '__recent';
this.delimiter = props?.delimiter ?? '\0';
this.serializer = props?.serializer ?? JSON.stringify;
this.deserializer = props?.deserializer ?? JSON.parse;
this.parseExistingJSON = props?.parseExistingJSON ?? false;
this.typePrefixDelimiter = props?.typePrefixDelimiter ?? '\0';
this.typePrefixes = this.preparePrefixes(props?.typePrefixes);
this.checkPrefixes();
this.ls = this.initLocalStorage(props);
}
initLocalStorage(props) {
const { fallback = false, localStorage } = props ?? {};
let lsProposed;
try {
lsProposed = localStorage ?? window?.localStorage;
}
catch { }
if (lsProposed != null) {
if (fallback && !LocalStorageLRU.testLocalStorage(lsProposed)) {
return new local_storage_fallback_1.LocalStorageFallback(1000);
}
return lsProposed;
}
else {
return new local_storage_fallback_1.LocalStorageFallback(1000);
}
}
preparePrefixes(typePrefixes) {
const delim = this.typePrefixDelimiter;
return {
date: `${typePrefixes?.date ?? DEFAULT_TYPE_PREFIXES.date}${delim}`,
bigint: `${typePrefixes?.bigint ?? DEFAULT_TYPE_PREFIXES.bigint}${delim}`,
object: `${typePrefixes?.object ?? DEFAULT_TYPE_PREFIXES.object}${delim}`,
int: `${typePrefixes?.int ?? DEFAULT_TYPE_PREFIXES.int}${delim}`,
float: `${typePrefixes?.float ?? DEFAULT_TYPE_PREFIXES.float}${delim}`,
};
}
checkPrefixes() {
// during init, we check that all values of typePrefixes are unique
const prefixes = Object.values(this.typePrefixes);
const uniqueValues = new Set(prefixes);
if (prefixes.length !== uniqueValues.size) {
throw new Error('all type prefixes must be distinct');
}
}
/**
* the number of recent keys tracked
*/
getMaxSize() {
return this.maxSize;
}
/**
* specific types are serialized with a prefix, while plain strings are stored as they are.
*/
serialize(val) {
if (typeof val === 'string') {
return val;
}
else if (Number.isInteger(val)) {
return `${this.typePrefixes.int}${val}`;
}
else if (typeof val === 'number') {
return `${this.typePrefixes.float}${val}`;
}
else if (val instanceof Date) {
return `${this.typePrefixes.date}${val.valueOf()}`;
}
else if (typeof val === 'bigint') {
return `${this.typePrefixes.bigint}${val.toString()}`;
}
else if (val === undefined) {
return `${this.typePrefixes.object}${this.serializer(null)}`;
}
return `${this.typePrefixes.object}${this.serializer(val)}`;
}
/**
* Each value in localStorage is a string. For specific prefixes,
* this deserializes the value. As a fallback, it optionally tries
* to use JSON.parse. If everything fails, the plain string value is returned.
*/
deserialize(ser) {
if (ser === null) {
return null;
}
try {
if (ser.startsWith(this.typePrefixes.object)) {
const s = ser.slice(this.typePrefixes.object.length);
try {
return this.deserializer(s);
}
catch {
return s;
}
}
else if (ser.startsWith(this.typePrefixes.int)) {
const s = ser.slice(this.typePrefixes.int.length);
try {
return parseInt(s, 10);
}
catch {
return s;
}
}
else if (ser.startsWith(this.typePrefixes.float)) {
const s = ser.slice(this.typePrefixes.float.length);
try {
return parseFloat(s);
}
catch {
return s;
}
}
else if (ser.startsWith(this.typePrefixes.date)) {
const tsStr = ser.slice(this.typePrefixes.date.length);
try {
return new Date(parseInt(tsStr, 10));
}
catch {
return tsStr; // we return the string if we can't parse it
}
}
else if (ser.startsWith(this.typePrefixes.bigint)) {
const s = ser.slice(this.typePrefixes.bigint.length);
try {
return BigInt(s);
}
catch {
return s;
}
}
}
catch { }
// optionally, it tries to parse existing JSON values – they'll be stored with a prefix when saved again
if (this.parseExistingJSON) {
try {
if (this.deserialize !== JSON.parse) {
return this.deserialize(ser);
}
}
catch { }
try {
return JSON.parse(ser);
}
catch { }
}
// most likely a plain string
return ser;
}
/**
* Wrapper around localStorage, so we can safely touch it without raising an
* exception if it is banned (like in some browser modes) or doesn't exist.
*/
set(key, val) {
if (key === this.recentKey) {
throw new Error(`localStorage: Key "${this.recentKey}" is reserved.`);
}
if (key.indexOf(this.delimiter) !== -1) {
throw new Error(`localStorage: Cannot use "${this.delimiter}" as a character in a key`);
}
const valSer = this.serialize(val);
// we have to record the usage of the key first!
// otherwise, setting it first and then updating the list of recent keys
// could delete that very key upon updating the list of recently used keys.
this.recordUsage(key);
try {
this.ls.setItem(key, valSer);
}
catch (e) {
console.log('set error', e);
if (!this.trim(key, valSer)) {
console.warn(`localStorage: set error -- ${e}`);
}
}
}
get(key) {
try {
const v = this.ls.getItem(key);
this.recordUsage(key);
return this.deserialize(v);
}
catch (e) {
console.warn(`localStorage: get error -- ${e}`);
return null;
}
}
has(key) {
// we don't call this.get, because we don't want to record the usage
return this.ls.getItem(key) != null;
}
/**
* Keys of last recently used entries. The most recent one comes first!
*/
getRecent() {
try {
return this.ls.getItem(this.recentKey)?.split(this.delimiter) ?? [];
}
catch {
return [];
}
}
getRecentKey() {
return this.recentKey;
}
/**
* avoid trimming more useful entries, we keep an array of recently modified keys
*/
recordUsage(key) {
try {
let keys = this.getRecent();
// first, only keep most recent entries, and leave one slot for the new one
keys = keys.slice(0, this.maxSize - 1);
// if the key already exists, remove it
keys = keys.filter((el) => el !== key);
// finally, insert the current key at the beginning
keys.unshift(key);
const nextRecentUsage = keys.join(this.delimiter);
try {
this.ls.setItem(this.recentKey, nextRecentUsage);
}
catch {
this.trim(this.recentKey, nextRecentUsage);
}
}
catch (e) {
console.warn(`localStorage: unable to record usage of '${key}' -- ${e}`);
}
}
/**
* remove a key from the recently used list
*/
deleteUsage(key) {
try {
let keys = this.getRecent();
// we only keep those keys, which are different from the one we removed
keys = keys.filter((el) => el !== key);
this.ls.setItem(this.recentKey, keys.join(this.delimiter));
}
catch (e) {
console.warn(`localStorage: unable to delete usage of '${key}' -- ${e}`);
}
}
/**
* Trim the local storage in case it is too big.
* In case there is an error upon storing a value, we assume we hit the quota limit.
* Try a couple of times to delete some entries and saving the key/value pair.
*/
trim(key, val) {
// we try up to 10 times to remove a couple of key/values
for (let i = 0; i < 10; i++) {
this.trimOldEntries();
try {
this.ls.setItem(key, val);
// no error means we were able to set the value
// console.info(`localStorage: trimming a few entries worked`);
return true;
}
catch (e) { }
}
console.warn(`localStorage: trimming did not help`);
return false;
}
// delete a few keys (not recently used and only of a specific type).
trimOldEntries() {
if (this.size() === 0)
return;
// delete a maximum of 10 entries
let num = Math.min(this.size(), 10);
const keys = this.keys();
// only get recent once, more efficient
const recent = this.getRecent();
// attempt deleting those entries up to 20 times
for (let i = 0; i < 20; i++) {
const candidate = keys[Math.floor(Math.random() * keys.length)];
if (candidate === this.recentKey)
continue;
if (recent.includes(candidate))
continue;
if (this.isCandidate != null && !this.isCandidate(candidate, recent))
continue;
// do not call this.delete, could cause a recursion
try {
this.ls.removeItem(candidate);
}
catch (e) {
console.warn(`localStorage: trimming/delete does not work`);
return;
}
num -= 1;
if (num <= 0)
return;
if (this.size() === 0)
return;
}
}
/**
* Return all keys in local storage, optionally sorted.
*
* @param {boolean} [sorted=false]
* @return {string[]}
*/
keys(sorted = false) {
const keys = this.ls instanceof local_storage_fallback_1.LocalStorageFallback ? this.ls.keys() : Object.keys(this.ls);
const filteredKeys = keys.filter((el) => el !== this.recentKey);
if (sorted)
filteredKeys.sort();
return filteredKeys;
}
/**
* Deletes key from local storage
*
* Throws an error only if you try to delete the reserved key to record recent entries.
*/
delete(key) {
if (key === this.recentKey) {
throw new Error(`localStorage: Key "${this.recentKey}" is reserved.`);
}
try {
this.deleteUsage(key);
this.ls.removeItem(key);
}
catch (e) {
console.warn(`localStorage: delete error -- ${e}`);
}
}
/**
* Returns true, if we can store something in local storage at all.
*/
localStorageIsAvailable() {
return LocalStorageLRU.testLocalStorage(this.ls);
}
/**
* Returns true, if we can store something in local storage at all.
* This is used for testing and during initialization.
*
* @static
* @param {Storage} ls
*/
static testLocalStorage(ls) {
try {
const TEST = '__test__';
const timestamp = `${Date.now()}`;
ls.setItem(TEST, timestamp);
if (ls.getItem(TEST) !== timestamp) {
throw new Error('localStorage: test failed');
}
ls.removeItem(TEST);
return true;
}
catch (e) {
return false;
}
}
/**
* number of items stored in the local storage – not counting the "recent key" itself
*/
size() {
try {
const v = this.ls.length;
if (this.has(this.recentKey)) {
return v - 1;
}
else {
return v;
}
}
catch (e) {
return 0;
}
}
/**
* calls `localStorage.clear()` and returns true if it worked – otherwise false.
*/
clear() {
try {
this.ls.clear();
return true;
}
catch (e) {
console.warn(`localStorage: clear error -- ${e}`);
return false;
}
}
getLocalStorage() {
return this.ls;
}
/** Delete all keys with the given prefix */
deletePrefix(prefix) {
for (let i = 0; i < this.ls.length; i++) {
const key = this.ls.key(i);
if (key == null)
continue;
if (key.startsWith(prefix) && key !== this.recentKey) {
this.delete(key);
}
}
}
/**
* Usage:
*
* ```ts
* const entries: [string, any][] = [];
* for (const [k, v] of storage) {
* entries.push([k, v]);
* }
* entries; // equals: [[ 'key1', '1' ], [ 'key2', '2' ], ... ]
* ```
*
* @returns iterator over key/value pairs
*/
*[Symbol.iterator]() {
for (const k of this.keys()) {
if (k === this.recentKey)
continue;
if (k == null)
continue;
const v = this.get(k);
if (v == null)
continue;
yield [k, v];
}
}
/**
* Set data in nested objects and merge with existing values
*/
setData(key, pathParam, value) {
const path = typeof pathParam === 'string' ? [pathParam] : pathParam;
const next = this.get(key) ?? {};
if (typeof next !== 'object')
throw new Error(`localStorage: setData: ${key} is not an object`);
function setNested(val, pathNested) {
if (pathNested.length === 1) {
// if value is an object, we merge it with the existing value
if (typeof value === 'object') {
val[pathNested[0]] = { ...val[pathNested[0]], ...value };
}
else {
val[pathNested[0]] = value;
}
}
else {
val[pathNested[0]] = val[pathNested[0]] ?? {};
setNested(val[pathNested[0]], pathNested.slice(1));
}
}
setNested(next, path);
this.set(key, next);
}
/**
* Get data from a nested object
*/
getData(key, pathParam) {
const path = typeof pathParam === 'string' ? [pathParam] : pathParam;
const next = this.get(key);
if (next == null)
return null;
if (typeof next !== 'object')
throw new Error(`localStorage: getData: ${key} is not an object`);
function getNested(val, pathNested) {
if (pathNested.length === 1) {
return val[pathNested[0]];
}
else {
return getNested(next[pathNested[0]], pathNested.slice(1));
}
}
return getNested(next, path);
}
/**
* Delete a value or nested object from within a nested object at the given path.
* It returns the deleted object.
*/
deleteData(key, pathParam) {
const path = typeof pathParam === 'string' ? [pathParam] : pathParam;
const next = this.get(key);
if (next == null)
return null;
if (typeof next !== 'object')
throw new Error(`localStorage: ${key} is not an object`);
function deleteNested(val, pathNested) {
if (pathNested.length === 1) {
const del = val[pathNested[0]];
delete val[pathNested[0]];
return del;
}
else {
deleteNested(val[pathNested[0]], pathNested.slice(1));
}
}
const deleted = deleteNested(next, path);
this.set(key, next);
return deleted;
}
}
//exports.LocalStorageLRU = LocalStorageLRU;
// -----------------------------------------------------------------------------------
// END LocalStorageLRU
// -----------------------------------------------------------------------------------
(function() {
'use strict';
// sleep time expects milliseconds
function sleep (time) {
return new Promise((resolve) => setTimeout(resolve, time));
}
function addCss(css) {
var styleEl = document.createElement('style');
// Set the CSS text of the <style> element
styleEl.textContent = css;
// Append the <style> element to the <head> of the document
document.head.appendChild(styleEl);
}
addCss(`
.thumbnail {
width: 75px;
height: auto;
margin: 0px;
transition: transform 0.3s ease;
}
/*.thumbnail:hover {
//transform: scale(1.2); /* Scale up on hover */
width: 100%;
}*/
.full-image {
display: none;
position: absolute;
top: 0;
left: 0;
z-index: 999;
}
#full-preview-container {
position: fixed;
top: 0;
left: 0;
border: 5px solid red;
z-index: 99999;
}
#full-preview-container img {
width: 100;
}
.full-preview-container-visible' {
display: block;
}
.full-preview-container-hidden' {
display: none;
}
`);
addCss(`
/* ------------------------------------------------------------------------------------- */
/* Switch checkbox element */
/* From https://stackoverflow.com/questions/44565816/javascript-toggle-switch-using-data */
/* ------------------------------------------------------------------------------------- */
.switch {
position: relative;
display: inline-block;
width: 60px;
height: 34px;
margin: 10px;
}
.switch input { display: none; }
.slider {
position: absolute;
cursor: pointer;
top: 0;
left: 0;
right: 0;
bottom: 0;
background-color: #ccc;
-webkit-transition: .4s;
transition: .4s;
}
.slider:before {
position: absolute;
content: "";
height: 26px;
width: 26px;
left: 4px;
bottom: 4px;
background-color: white;
-webkit-transition: .4s;
transition: .4s;
}
input:checked + .slider { background-color: #2196F3; }
input:focus + .slider { box-shadow: 0 0 1px #2196F3; }
input:checked + .slider:before {
-webkit-transform: translateX(26px);
-ms-transform: translateX(26px);
transform: translateX(26px);
}
`);
addCss(`
/* ----------------------------------------------------------------------------- */
/* Snake border element */
/* From https://stackoverflow.com/questions/65291742/snake-like-border-animation */
/* ----------------------------------------------------------------------------- */
@keyframes snake-border-head {
/**
* The snake's "head" stretches across a side of its container.
* The moment this head hits a corner, it instantly begins to
* stretch across the next side. (This is why some keyframe
* moments are repeated, to create these instantaneous jumps)
*/
90% { left: 0; top: 0; width: 0; height: 40%; }
90% { left: 0; top: 0; width: 0; height: 0; }
100% { left: 0; top: 0; width: 40%; height: 0; } 0% { left: 0; top: 0; width: 40%; height: 0; }
15% { left: 60%; top: 0; width: 40%; height: 0; }
15% { left: 100%; top: 0; width: 0; height: 0; }
25% { left: 100%; top: 0; width: 0; height: 40%; }
40% { left: 100%; top: 60%; width: 0; height: 40%; }
40% { left: 100%; top: 100%; width: 0; height: 0; }
50% { left: 60%; top: 100%; width: 40%; height: 0; }
65% { left: 0; top: 100%; width: 40%; height: 0; }
65% { left: 0; top: 100%; width: 0; height: 0; }
75% { left: 0; top: 60%; width: 0; height: 40%; }
}
@keyframes snake-border-tail {
/**
* The "tail" of the snake is at full length when the head is at 0
* length, and vice versa. The tail always at a 90 degree angle
* from the head.
*/
90% { top: 0%; height: 40%; }
100% { left: 0; top: 0; width: 0; height: 0; } 0% { left: 0; top: 0; width: 0; height: 0; }
15% { width: 40%; }
25% { left: 100%; top: 0; width: 0; height: 0; }
40% { height: 40%; }
50% { left: 100%; top: 100%; width: 0; height: 0; }
65% { left: 0%; width: 40%; }
75% { left: 0; top: 100%; width: 0; height: 0; }
}
.snake-border {
position: relative;
box-shadow: inset 0 0 0 1px #00a0ff;
}
.snake-border::before, .snake-border::after {
content: '';
display: block;
position: absolute;
outline: 3px solid #00a0ff;
animation-duration: 6s;
animation-timing-function: linear;
animation-iteration-count: infinite;
}
.snake-border::before { animation-name: snake-border-head; }
.snake-border::after { animation-name: snake-border-tail; }
`);
addCss(`
.image-preview-container { position: relative; }
.image-preview-container[aria-label]:focus:after,
.image-preview-container[aria-label]:hover:after {
position: absolute;
/*z-index: 99;
*/top: -2em;
left: 0;
display: block;
overflow: hidden;
width: 17em;
height: 2em;
border-radius: .2em;
padding: 0 .7em;
content: attr(aria-label);
color: #fff;
background: #000;
font-size: 1em;
line-height: 2em;
text-align: left;
}
`);
function findImagesInHtml(html) {
const fakeHtmlEl = document.createElement('html');
fakeHtmlEl.innerHTML = html;
const images = fakeHtmlEl.querySelectorAll('img');
const onloadImages = [];
images.forEach(img => {
if (img.onload === null) {
return;
}
onloadImages.push(img);
});
return onloadImages;
}
function addPreview(tr, images) {
var imagePreview;
if (typeof images !== 'string') {
imagePreview = createaElementFromHTML('<td class="image-preview"><div class="image-preview"></div></td>', 'tr');
const container = imagePreview.firstChild;
images.forEach(image => {
const smallImage = image.cloneNode(true);
smallImage.setAttribute('class', 'thumbnail');
//smallImage.style = 'max-width: 75px';
container.appendChild(smallImage);
});
tr.append(imagePreview);
} else {
// It's from the cache.
imagePreview = domParser.parseFromString(images, 'text/html').body.firstChild;
// Need to reconstruct images list.
images = [];
for (var i = 0; i < imagePreview.children.length; ++i) {
const image = imagePreview.children.item(i).cloneNode(true);
image.setAttribute('class', '');
images.push(image);
}
window.images = images;
tr.append(imagePreview);
}
imagePreview.addEventListener('mouseenter', () => showFullImage(images));
imagePreview.addEventListener('mouseleave', () => hideFullImage());
return imagePreview;
}
function showFullImage(images) {
const fullImageContainer = document.getElementById('full-preview-container');
images.forEach(image => {
fullImageContainer.appendChild(image.cloneNode(true));
console.log(`added ${image.src}`);
});
fullImageContainer.setAttribute('class', 'image-preview full-preview-container-visible');
}
function hideFullImage() {
const fullImageContainer = document.getElementById('full-preview-container');
fullImageContainer.innerHTML = '';
fullImageContainer.setAttribute('class', 'image-preview full-preview-container-hidden');
}
function createaElementFromHTML(str, parentTag = 'div') {
var div = document.createElement(parentTag);
div.innerHTML = str.trim();
// n.b. Change this to div.childNodes to support multiple top-level nodes.
return div.firstChild;
}
// -----------------------------------------------------------------------------------
// Miscellaneous setup
// -----------------------------------------------------------------------------------
const localStorage = new LocalStorageLRU({
//recentKey: RECENTLY_KEY,
maxSize: 8096,
//isCandidate: candidate,
fallback: false,
});
// Uncomment and reload page to reset the cache if you messed up during dev.
//localStorage.clear();
const xmlSerializer = new XMLSerializer();
const domParser = new DOMParser();
// -----------------------------------------------------------------------------------
// Toggler setup
// -----------------------------------------------------------------------------------
// <unique-tabId>
// Unique tab identifier, based on https://stackoverflow.com/questions/11896160/any-way-to-identify-browser-tab-in-javascript.
// This is used to ensure the toggle button enablement is only applied to the current tab (even across page refreshes, the toggle state is persisted).
const tabId = sessionStorage.tabId && sessionStorage.closedLastTab !== '2' ? sessionStorage.tabId : sessionStorage.tabId = `${Date.now()}.${Math.random()}`;
sessionStorage.closedLastTab = '2';
window.onbeforeunload = () => { console.log(`[image-preview] tabId beforeunload invoked at ${Date.now()}`); sessionStorage.closedLastTab = '1'; };
window.onunload = () => { console.log(`[image-preview] tabId unload invoked at ${Date.now()}`); sessionStorage.closedLastTab = '1'; };
window.tabId = tabId;
// </unique-tabId>
function enabled() {
const result = sessionStorage.enabledOnTabId === tabId;
return result;
}
console.log(`[image-preview] tabId=${tabId} enabled=${enabled()}`);
const prependToEl = document.querySelector('form#torrents');
const togglerButton = createaElementFromHTML(`
<div class="image-preview-container" aria-label="Toggle image previews on/off">
<div class="${(enabled() ? 'snake-border' : '')}">
<label class="switch">
<input type="checkbox" name="toggle" aria-describedby="image-preview-toggle" ${enabled() ? 'checked="checked"' : ''}>
<div class="slider"></div>
</label>
<div style="display:none;" id="image-preview-toggle" role="tooltip">Toggle image previews on/off</div>
</div>
</div>
`);
prependToEl.firstChild.prepend(togglerButton);
const checkbox = document.querySelector('input[name=toggle]');
const parentContainer = checkbox.parentNode.parentNode;
checkbox.addEventListener('change', function() {
if (this.checked) {
console.log('Image preview checkbox is checked');
sessionStorage.enabledOnTabId = tabId;
parentContainer.setAttribute('class', parentContainer.getAttribute('class') + ' snake-border');
document.querySelectorAll('.image-preview').forEach(el => {console.log(el); el.style = ''});
doImagePreviews();
} else {
console.log('Image preview checkbox is deactivated');
sessionStorage.enabledOnTabId = null; // Disable doActivity() on next run.
parentContainer.setAttribute('class', parentContainer.getAttribute('class').replaceAll(/snake-border/g, ''));
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!
//localStorage.clear(); // !!!!!!! CLEARS OUT BLOWS AWAY CACHE !!!!!!!!!!!!!!!!!!
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!
document.querySelectorAll('.image-preview').forEach(el => {console.log('hiiiiiiiiiiiii' + el); el.style = 'display: none'});
}
});
// -----------------------------------------------------------------------------------
// Party time
// -----------------------------------------------------------------------------------
function doImagePreviews() {
if (!enabled()) {
console.log('image previews are currently disabled');
return;
}
const fullImageContainer = createaElementFromHTML('<div id="full-preview-container" class="image-preview full-preview-container-hidden">LOLz</div>');
document.querySelector('form#torrents').parentNode.append(fullImageContainer);
const rows = document.querySelectorAll('#torrentTable tr');
const thEl = createaElementFromHTML('<th class="image-preview"></th>', 'tr');
rows[0].appendChild(thEl);
async function rowHandler(tr, i) {
if (i === 0) {
return;
}
//if (i >= 10) { return; }
if (!enabled()) {
console.log(`[image-preview] [i=${i}] image previews are currently disabled`);
return;
}
console.log(`[image-preview] starting handler for row=${i}`);
const startedAt = Date.now();
let delay = 150; // n.b. In milliseconds.
var p = new Promise((resolve) => {
const link = tr.querySelector('.b.hv').href;
console.log(`[image-preview] link=${link} :: row=${i}`);
const cached = localStorage.get(link);
if (cached !== null) {
addPreview(tr, cached); // images);
console.log(`[image-preview] Found ${link} in cache ::row=${i}`);
resolve();
return
}
sleep(delay).then(() => {
fetch(link)
.then((response) => {
return response.text();
}).then((html) => {
const onloadImages = findImagesInHtml(html);
if (onloadImages.length == 0) {
console.log('INFO: no images for ' + link);
resolve();
return;
}
const imagePreview = addPreview(tr, onloadImages);
localStorage.set(link, xmlSerializer.serializeToString(imagePreview));
console.log(`[image-preview] [row=${i}] Injected`);
resolve();
}).catch(function(err) {
console.log(`[image-preview] ERROR: [row=${i}] Failed to fetch page {link}`, err);
resolve();
});
});
});
await p;
const finishedAt = Date.now();
console.log(`[image-preview] row ${i} took ${finishedAt - startedAt} ms`);
}
//rows.forEach(rowHandler);
// The async stuff ensures we don't hit the server too hard with concurrent requests.
const asyncLoop = async (even) => {
for (var i = 0; i < rows.length; ++i) {
if (even && i % 2 == 0 || !even && i % 2 != 0) {
await rowHandler(rows[i], i);
}
}
};
asyncLoop(true);
asyncLoop(false);
}
doImagePreviews();
})();
