// ==UserScript==
// @name        	Steam Screenshot Scroll
// @namespace   	iFantz7E.SteamScreenshotScroll
// @description 	Use mouse wheel to scroll screenshots in Steam
// @version     	0.03
// @run-at      	document-start
// @match       	*://store.steampowered.com/app/*
// @match       	*://steamcommunity.com/sharedfiles/filedetails/*
// @icon      		https://store.steampowered.com/favicon.ico
// @grant       	none
// @license			GPL-3.0-only
// @copyright		2018, 7-elephant
// @supportURL		https://steamcommunity.com/id/7-elephant/
// @contributionURL	https://www.paypal.me/iFantz7E
// ==/UserScript==
// License: GPL-3.0-only - https://spdx.org/licenses/GPL-3.0-only.html
// Since 26 May 2018
// https://greasyfork.org/scripts/368462-steam-screenshot-scroll
// Modify from:
//   https://greasyfork.org/en/scripts/759-steam-scroll/
//   https://steamstore-a.akamaihd.net/public/javascript/gamehighlightplayer.js
// External variable:
//   jQuery, g_player, HighlightPlayer
// Sample:
//   https://store.steampowered.com/app/227300/Euro_Truck_Simulator_2/
//   https://steamcommunity.com/sharedfiles/filedetails/?id=729791016
(function ()
{
"use strict";
// jshint multistr:true
function attachOnReady(callback)
{
document.addEventListener("DOMContentLoaded", function (e)
{
callback();
});
}
function main()
{
setTimeout(function()
{
var ssPlayer = null;
if (typeof g_player !== "undefined")
{
ssPlayer = g_player;
}
else if (typeof HighlightPlayer !== "undefined")
{
HighlightPlayer.prototype.HighlightItem = function(elem, bUserAction)
{
// Modify
if (!ssPlayer)
{
ssPlayer = this;
}
// Original
{
var $Elem = $JFromIDOrElement(elem);
if (this.BIsMovie($Elem))
this.HighlightMovie(this.GetMovieId($Elem), bUserAction);
else
this.HighlightScreenshot(this.GetScreenshotId($Elem));
var nextItem = this.m_activeItem.next('.highlight_player_item');
if (nextItem && this.BIsScreenshot(nextItem))
this.LoadScreenshot(this.GetScreenshotId(nextItem));
}
}
// Force set ssPlayer
jQuery(".highlight_strip_item.focus").click();
}
var lastScroll = Date.now();
function ssScroll(ev) {
ev.preventDefault();
if (Date.now() - lastScroll < 250)
{
// Prevent too fast scrolling
return;
}
else
{
lastScroll = Date.now();
}
var isScrollDown = (ev.deltaY > 0);
var siblingProp = isScrollDown ? "next" : "prev";
var eleExpect = jQuery(".highlight_strip_screenshot.focus")
[siblingProp](".highlight_strip_screenshot")[0];
if (!eleExpect) {
var elesSs = jQuery(".highlight_strip_screenshot");
eleExpect = elesSs[isScrollDown ? 0 : elesSs.length - 1];
}
if (ssPlayer)
{
ssPlayer.HighlightItem(eleExpect);
ssPlayer.ClearInterval();
}
}
var eleHolder = jQuery("#highlight_strip")[0];
if (eleHolder)
{
eleHolder.addEventListener("wheel", ssScroll);
}
if (ssPlayer)
{
ssPlayer.ClearInterval();
}
}, 1000);
}
attachOnReady(main);
})();
// End