// ==UserScript==

// @name Rutracker XRAY Def

// @namespace https://raw.githubusercontent.com/nazda/js/master/Rutracker_XRAY.def.user.js

// @version 0.9

// @description Display thumbnails in forums and in search results on rutracker and other sites.

// @author bergmich

// @include http://rutracker.org/forum/viewforum.php*

// @include http://rutracker.org/forum/tracker.php*

// @include http://free-torrents.org/forum/viewforum.php*

// @include http://tr.free-torrents.org/forum/tracker.php*

// @include http://pornolab.net/forum/viewforum.php*

// @include http://pornolab.net/forum/tracker.php*

// @updateURL https://raw.githubusercontent.com/nazda/js/master/Rutracker_XRAY.def.user.js

// @downloadURL https://raw.githubusercontent.com/nazda/js/master/Rutracker_XRAY.def.user.js

// @grant GM_setValue

// @grant GM_getValue

// @grant GM_registerMenuCommand

// @grant GM_listValues

// @grant GM_deleteValue

// @grant GM_log

// @grant GM_xmlhttpRequest

// ==/UserScript==

/* jshint -W097 */

var Store = {};

// GM (tampermonkey) based

Store.setItem = function (k, v) {

v = String(v);

window.console.log("Setting " + window.location.hostname + "." + k + " = " + v);

GM_setValue(window.location.hostname + "." + k, v);

}

Store.getItem = function (k) {

return GM_getValue(window.location.hostname + "." + k);

}

Store.listItems = function () {

return GM_listValues();

}

Store.deleteItem = function (k) {

GM_deleteValue(window.location.hostname + "." + k);

}

*

// localStorage based

Store.setItem = function (k, v) {

v = String(v);

window.localStorage.setItem(k, v);

}

Store.getItem = function (k) {

return window.localStorage.getItem(k);

}

Store.listItems = function () {

var l = [];

for(var n in window.localStorage) {

l[l.length] = n;

}

return l;

}

Store.deleteItem = function (k) {

window.localStorage.removeItem(k);

}

// Traverse up in parent nodes untile nodeName matches

function findParent(el, nodeName) {

while (el != null && el.nodeName != nodeName) {

el = el.parentNode;

}

return el;

}

// if async, next processing is handled by handler (invoke func in 4 param)

function handleQueue(list, handler, current, timeout, async) {

if (typeof current == "undefined") {

current = 0;

}

if (typeof timeout == "undefined") {

timeout = 200;

}

if (current < list.length) {

var nextInQueueHandler = function () {

handleQueue(list, handler, current + 1, timeout);

};

window.setTimeout(function () {

try {

handler(list[current], current, list, async ? nextInQueueHandler : null);

} catch (e) {

window.console.log("Failed: " + e + " when processing: " + list[current]);

}

if (!async) {

nextInQueueHandler();

}

}, current == 0 ? 0 : timeout);

}

}

// All excludes images on topic page

var imgExclude = [ "rutracker.org", "openstat", "logo.png", "rambler.ru", "kinopoisk.ru", "imqur.ru", "kiev.ua", "pornolab.net", "reine.ru",

"free-torrents.org"

];

// topics

var topics = []; // { row: element, link: element }

function findTopics() {

// Topics in categories

$("a.torTopic").each(function (idx, el) {

var row = findParent(el, "TR");

if (row != null) {

var data = { row: row, link: el };

$(row).find("img.topic_icon").each(function (idx, el) {

data.icon = String(el.src);

});

data.type = "default";

if (data.icon.indexOf("announce") >= 0) {

data.type = "announce";

}

if (data.icon.indexOf("dl_new") >= 0) {

data.type = "new";

}

if (data.icon.indexOf("sticky") >= 0) {

data.type = "sticky";

}

data.posterCell = 0;

data.imageCell = 1;

data.id = row.cells[0].id;

data.cors = false;

//if (topics.length < 5)

topics[topics.length] = data;

}

});

// Search results (rutracker)

$("a.tLink").each(function (idx, el) {

var row = findParent(el, "TR");

if (row != null) {

var data = { row: row, link: el };

$(row).find("img.icon1").each(function (idx, el) {

data.icon = String(el.src);

});

data.type = "default";

data.posterCell = 0;

data.imageCell = 3;

data.id = String(el.href).replace(/.*t=/, "");

data.cors = false;

//if (topics.length < 5)

topics[topics.length] = data;

}

});

// Search results (free-torrents)

$("a.genmed").each(function (idx, el) {

var row = findParent(el, "TR");

if (row != null) {

var data = { row: row, link: el };

$(row).find("img.icon1").each(function (idx, el) {

data.icon = String(el.src);

});

data.type = "default";

data.posterCell = 0;

data.imageCell = 3;

data.id = String(el.href).replace(/.*t=/, "");

data.cors = true; // free-torrents CORS needed

//if (topics.length < 5)

topics[topics.length] = data;

}

});

window.console.log("Found topics: " + topics.length);

return topics;

}

// Find first image larger than 200x200

function findCandidatePoster(id, v, posters, index, onComplete) {

if (typeof index == "undefined") {

index = 0;

}

if (index >= posters.length) {

if (onComplete) onComplete();

return;

}

var img = new Image();

img.onload = function () {

if (img.width > 200 && img.height > 200) {

window.console.log("Candidate image " + img.src + " dim " + img.width + "x" + img.height);

var poster = Store.getItem("poster." + id);

if (!poster) {

Store.setItem("poster." + id, img.src);

}

}

findCandidatePoster(id, v, posters, index + 1, onComplete);

};

img.onerror = function () {

findCandidatePoster(id, v, posters, index + 1, onComplete);

};

// window.console.log("Fetching image: " + posters[index]);

img.src = posters[index];

}

function displayPoster(id, v, poster) {

var span = document.createElement("span");

span.setAttribute("id", "poster_" + id);

// thumbnail

var img = new Image();

img.setAttribute("id", "poster_" + id + "_thumbnail");

img.src = poster;

img.className = "posterThumbnail";

// Disable rutracker setting height to max for images

img.style.maxWidth = "200px";

img.style.maxHeight = "200px";

img.onmouseover = function () {

var id = this.parentNode.id + "_image";

var el = document.getElementById(id);

el.style.display = "";

}

img.onmouseout = function () {

var id = this.parentNode.id + "_image";

var el = document.getElementById(id);

el.style.display = "none";

}

span.appendChild(img);

// full size

var img = new Image();

img.setAttribute("id", "poster_" + id + "_image");

img.src = poster;

img.className = "posterImage";

img.style.display = "none";

img.style.position = "absolute";

span.appendChild(img);

v.row.cells[v.posterCell].appendChild(span);

}

function displayImages(id, v, images) {

var span = document.createElement("span");

span.setAttribute("id", "image_" + id);

for (var i = 0; i < images.length; i++) {

// thumbnail

var img = new Image();

img.setAttribute("id", "image_" + id + "_thumbnail" + i);

img.src = images[i];

img.className = "topicThumbnail";

// Disable rutracker setting height to max for images

img.style.maxWidth = "64px";

img.style.maxHeight = "64px";

img.style.padding = "2px";

img.onmouseover = function () {

var id = String(this.id).replace("_thumbnail", "_image");

var el = document.getElementById(id);

el.style.display = "";

}

img.onmouseout = function () {

var id = String(this.id).replace("_thumbnail", "_image");

var el = document.getElementById(id);

el.style.display = "none";

}

span.appendChild(img);

// full size

var img = new Image();

img.setAttribute("id", "image_" + id + "_image" + i);

img.src = images[i];

img.className = "topicImage";

img.style.display = "none";

img.style.position = "absolute";

span.appendChild(img);

}

v.row.cells[v.imageCell].appendChild(span);

}

function processTopic(id, v, html) {

var poster = Store.getItem("poster." + id);

var images = Store.getItem("images." + id);

if (poster) {

displayPoster(id, v, poster);

}

if (images) {

displayImages(id, v, images.split("##"));

}

if (!poster || !images) {

//var doc = $.parseHTML(html);

var p = new DOMParser();

var doc = p.parseFromString(html, "text/html");

doc = [ doc ];

var images = [];

for (var j = 0; j < doc.length; j++) {

// Find images <img src=....

$(doc[j]).find("img").each(function (idx, el) {

var url = String(el.src);

for (var i = 0; i < imgExclude.length; i++) {

if (url.indexOf(imgExclude[i]) >= 0) {

url = null;

break;

}

}

if (url) {

images[images.length] = url;

}

});

// Find hidden <var title=

$(doc[j]).find(".postImg").each(function (idx, el) {

var url = String(el.title);

for (var i = 0; i < imgExclude.length; i++) {

if (url.indexOf(imgExclude[i]) >= 0) {

url = null;

break;

}

}

if (url) {

images[images.length] = url;

}

});

}

window.console.log("Topic images", images);

if (!poster)

findCandidatePoster(id, v, images, 0, function () {

var poster = Store.getItem("poster." + id);

if (poster) {

displayPoster(id, v, poster);

}

var s = "";

for (var i = 0; i < images.length; i++) {

if (s != "") {

s += "##";

}

if (images[i] != poster) {

s += images[i];

}

}

Store.setItem("images." + id, s);

displayImages(id, v, images);

});

}

}

function readTopic(v, index, list, handler) {

var href = v.link.href;

var id = v.id;

window.console.log(id + ", " + href + " " + v.type);

// Don`t parse HTML, go straight to processing

var poster = Store.getItem("poster." + id);

var images = Store.getItem("images." + id);

if (poster && images) {

processTopic(id, v, null);

if (handler) {

handler();

}

return;

}

var onreadystatechange = function (id, v, xhr, handler) {

// window.console.log("readystatechange " + xhr.status + ", " + xhr.readyState);

if (xhr.readyState == 4 && xhr.status >= 200 && xhr.status < 400) { // DONE & good status

processTopic(id, v, xhr.responseText);

if (handler) {

handler();

}

}

};

var onerror = function (e, handler) {

window.console.log("Failed to request: " + e);

if (handler) {

handler();

}

};

// Request new

if (v.cors) {

GM_xmlhttpRequest({

method: "GET",

timeout: 10000,

url: href,

onreadystatechange: function (xhr) { onreadystatechange(id, v, xhr, handler); },

onerror: function (err) { onerror(err, handler); }

});

} else {

var xhr = new XMLHttpRequest();

xhr.timeout = 10000;

xhr.withCredentials = true;

xhr.onreadystatechange = function () { onreadystatechange(id, v, this, handler); };

xhr.onerror = function (e) { onerror(e, handler); };

window.console.log("Requesting " + href);

xhr.open("GET", href, true);

xhr.send(null);

}

}

// Clear all stored values

function clearCache() {

var vals = Store.listItems();

window.console.log("Total stored: " + vals.length + " keys");

for (var i = 0; i < vals.length; i++) {

window.console.log("Deleting " + vals[i]);

Store.deleteItem(vals[i]);

}

}

// Add Clear cache in menu

GM_registerMenuCommand("Clear cache", clearCache);

topics = findTopics();

window.topics = topics;

handleQueue(topics, readTopic, 0, 100, true);