E-Hentai Info on Hover

Displays additional gallery information when hovering over thumbnails. Only works in thumbnail mode.

Dovrai installare un'estensione come Tampermonkey, Greasemonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Userscripts per installare questo script.

Dovrai installare un'estensione come ad esempio Tampermonkey per installare questo script.

Dovrai installare un gestore di script utente per installare questo script.

(Ho già un gestore di script utente, lasciamelo installare!)

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

(Ho già un gestore di stile utente, lasciamelo installare!)

// ==UserScript==
// @name           E-Hentai Info on Hover
// @description    Displays additional gallery information when hovering over thumbnails. Only works in thumbnail mode.
// @namespace      http://userscripts.org/users/106844
// @include        http://e-hentai.org/*
// @include        https://e-hentai.org/*
// @include        http://g.e-hentai.org/*
// @include        https://g.e-hentai.org/*
// @include        http://exhentai.org/*
// @include        https://exhentai.org/*
// @grant          GM_getValue
// @grant          GM_setValue
// @grant          GM_xmlhttpRequest
// @version        0.2.6
// ==/UserScript==

var save = function(key,value) {
    if (typeof(GM_setValue) !== 'undefined') GM_setValue(key,value);
    else localStorage.setItem(key,value);
};

var load = function(key,def) {
  	if (typeof(GM_getValue) !== 'undefined') return GM_getValue(key,def);
    else return (localStorage.getItem(key) || def);
};

var doRequest = function(url, method, data, callback) {
    if (typeof(GM_xmlhttpRequest) === 'undefined') {
        var xhr = new XMLHttpRequest();
        xhr.open(method, url);
        xhr.onload = function() { callback(this); };
        xhr.send(data);
    } else {
        GM_xmlhttpRequest({
            url: url,
            method: method,
            data: data,
            onload: callback
        });
    }
};

/* * * * * * * * * */

var stringify = function(data) {
    var volatile = (new Date().valueOf() - data.posted*1000) < 1000*60*60*2;
    return data.gid + ':' + (volatile*1) + ':' + data.filesize + ':' + data.tags.join(',') + ':' + data.uploader;
};

var parse = function(data) {
    if (data && data[0] == '@') data = data.slice(1);
    var tokens = data.split(/:/);
	if (!tokens || tokens.length < 5) return null;
    return { gid: parseInt(tokens[0],10), volatile: parseInt(tokens[1],10) == 1,
        size: parseInt(tokens[2],10), tags: tokens[3].split(','), uploader: tokens[4] };
};

var getRegex = function(gid,flags) {
    return new RegExp('(@|^)' + gid + ':[^@]+',flags); 
};

/* * * * * * * * * */

var checkStorage = function(gid) {
    var data = load('g.cache',null);
    if (data === null) return null;
    var match = data.match(getRegex(gid));
    return match === null ? null : parse(match[0]);
};

var cleanStorage = function() {
    var data = load('g.cache',null), lastClean = load('g.lastClean',null);
    if (data === null) return;
    var now = new Date().valueOf(), hours = 1000*60*60;
    if (lastClean !== null && now - parseInt(lastClean,10) < 6*hours) return;
    data = data.split(/@/).filter(function(x) { var parsed = parse(x); return parsed && !parsed.volatile; });
    save('g.cache',data.join('@'));
    save('g.lastClean',now);
};

/* * * * * * * * * */

var startApiRequest = function(target) {
    apiBusy = true;
    var request = [ [ target.gid, target.token ] ], data = load('g.cache','');
    var temp = targets.filter(function(x) { return x.gid != target.gid && !getRegex(x.gid).test(data); });
    temp = temp.slice(0,24).map(function(x) { return [ x.gid, x.token ]; });
    request = request.concat(temp);
    request = JSON.stringify({ method: 'gdata', gidlist: request });
    doRequest('https://e-hentai.org/api.php', 'POST', request, function(data) { onApiLoad(target,data.responseText); });
};

var onApiLoad = function(target,response) {
    var data = load('g.cache',null);
    data = data === null ? [ ] : data.split(/@/);
    response = JSON.parse(response);
    response.gmetadata.forEach(function(x) { data.push(stringify(x)); });
    save('g.cache',data.slice(-1000).join('@'));
    apiBusy = false;
    if (timeout !== null) showData(target,checkStorage(target.gid));
};

/* * * * * * * * * */

var mouseOver = function(target) {
    if (apiBusy) return;
    if (timeout !== null) clearTimeout(timeout);
    timeout = setTimeout(function() { hoverTimeout(target); },500);
};

var mouseLeave = function(target) {
    if (timeout !== null) clearTimeout(timeout);
    timeout = null;
    target.target.classList.remove('gShow');
};

var hoverTimeout = function(target) {
    if (target.target.querySelector('.gData') !== null) {
        target.target.classList.add('gShow');
        return;
    }
    var data = checkStorage(target.gid);
    if (data !== null) showData(target,data);
    else startApiRequest(target);
};

/* * * * * * * * * */

var showData = function(target,data) {
    if (data === null) return;
    var div = document.createElement('div');
    var size = (Math.round(data.size/1024/1024*100)/100) + 'MB';
    div.appendChild(document.createElement('div')).innerHTML = size;
    if (data.uploader) {
        var uploader = document.createElement('a');
        uploader.href = window.location.origin + '/uploader/' + data.uploader;
        uploader.textContent = data.uploader;
        var uploaderContainer = document.createElement('span');
        uploaderContainer.appendChild(uploader);
        div.appendChild(uploaderContainer);
    }
    var tags = div.appendChild(document.createElement('div'));
    data.tags.forEach(function(x,n) {
        var a = tags.appendChild(document.createElement('a'));
        a.href = '/?f_search=' + x.replace(/\s/g,'+');
        a.innerHTML = x;
        if (n < data.tags.length-1) tags.appendChild(document.createTextNode(', '));
    });
    div.className = 'gData id1';
    target.target.appendChild(div);
    setTimeout(function() { target.target.classList.add('gShow'); },10);
};

/* * * * * * * * * */

var onPanda = (window.location.href.indexOf('exhentai') != -1);
var style = document.createElement('style');
style.innerHTML =
    '.gData { position: absolute; top: 0px; left: 0px; text-align: left; padding: 5px;' +
        'font-weight: bold; height: 100%; width: 95% !important; z-index: 1; font-size: 10px; margin: 0 !important;' +
        'border: none !important; border-radius: 0 !important; transition: left .5s; left: -300px;' +
        'color: ' + (onPanda ? 'white' : 'black') + '}' +
    '.gShow > .gData { left: 0px !important; }' +
    '.gData > :first-child:before { content: "Size: " }' +
    '.gData > :nth-child(2):not(:last-child):before { content: "Uploader: " }' +
    '.gData > :last-child:before { content: "Tags: " }' +
    '.gData > :last-child > a { color: ' + (onPanda ? 'white' : 'black') + ' !important; }' +
    '.gData > :last-child > a:hover { background: red !important; }' +
    '.automatedButton { z-index: 2; }';
document.head.appendChild(style);

/* * * * * * * * * */

var timeout = null, apiBusy = false;
var targets = Array.prototype.slice.call(document.querySelectorAll('.id3 > a'),0);

targets = targets.map(function(x) {
    var tokens = x.href.match(/g\/(\d+)\/([0-9a-f]{10,10})/);
    if (!tokens) return null;
    return { target: x, gid: parseInt(tokens[1],10), token: tokens[2] };
});
targets = targets.filter(function(x) { return x !== null; });

targets.forEach(function(x) {
    x.target.addEventListener('mouseover',function() { mouseOver(x); },false);
    x.target.addEventListener('mouseleave',function() { mouseLeave(x); },false);
});

cleanStorage();