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Enhance HKEPC trading forum
// ==UserScript==
// @name HKEPC+
// @namespace http://www.hkepc.com/
// @version 0.3
// @description Enhance HKEPC trading forum
// @author lacek
// @match *://www.hkepc.com/forum/*
// @grant none
// ==/UserScript==
/* jshint -W097 */
'use strict';
(function() {
var HKEPC = {
init: function() {
var page = this.determinePage();
this.processPage(page);
},
determinePage: function() {
var page = null;
var url = window.location.href.toLowerCase();
var file = url.substring(url.lastIndexOf('/') + 1);
if (file === "index.php" || file === "") {
page = 'index';
}
else if (file.indexOf("index.php?gid=") === 0) {
page = 'group';
}
else if (file.indexOf("forumdisplay.php") === 0) {
page = 'forum';
}
else if (file.indexOf("viewthread.php") === 0) {
page = 'thread';
}
return page;
},
processPage: function(page) {
if (page !== null) {
if (typeof (this[page + "PageProcessor"]) == 'function') {
this[page + "PageProcessor"]();
}
}
},
indexPageProcessor: function() {
//add '&orderby=dateline' to links to trading forums
var searchStart = 150; //((19*3-9)°Ï)*4+8
var searchEnd = 250;
var linksPerBlock = 2;
var tradeLinks = ['?fid=14', '?fid=81', '?fid=119'];
var aTag = document.getElementById('mainIndex').getElementsByTagName('a');
var linksChanged = 0;
for (var i = 0; i < tradeLinks.length; i++) {
for (var j = searchStart; j < searchEnd; j++) {
if (aTag[j].href.indexOf(tradeLinks[i]) != -1) {
aTag[j].href += '&orderby=dateline';
linksChanged++;
if (linksChanged >= linksPerBlock) {
linksChanged = 0;
break; //seach for next link
}
}
}
}
},
groupPageProcessor: function() {
},
forumPageProcessor: function() {
this.patchForumPageHotkey();
this.patchThreadLinks();
},
threadPageProcessor: function() {
if(this.getQueryValue(window.location.href, "extra") !== "") this.patchThreadPageHotkey();
},
//patch arrow hotkey links that contains '&'
patchForumPageHotkey: function() {
var oldScript = document.querySelector('#wrap > script[type="text/javascript"]');
var newScript = document.createElement('script');
newScript.innerHTML = oldScript.innerHTML.replace(/\amp;/g, "");
oldScript.parentNode.appendChild(newScript);
oldScript.parentNode.removeChild(oldScript);
},
//patch arrow hotkey link that misses parameters
patchThreadPageHotkey: function() {
var oldScript = document.getElementById('wrap').getElementsByTagName('script');
var oldUrl = null;
for (var i = 0; i < oldScript.length; i++) {
if ((oldUrl = oldScript[i].innerHTML.match(/'viewthread.php\?tid=[0-9]+'/)) !== null) {
var newScript = document.createElement('script');
oldUrl = oldUrl[0].substring(1, oldUrl[0].length - 1);
var newUrl = oldUrl + "&extra=" + this.getQueryValue(window.location.href, 'extra');
newScript.innerHTML = oldScript[i].innerHTML.replace(oldUrl, newUrl);
oldScript[i].parentNode.appendChild(newScript);
oldScript[i].parentNode.removeChild(oldScript[i]);
break;
}
}
},
//patch forum incorrect links containing '&'
patchThreadLinks: function() {
var spanTag = document.getElementById("threadlist").getElementsByTagName("span");
var spanTagLen = spanTag.length;
var aTag;
for (var i = 0; i < spanTagLen; i++) {
if (spanTag[i].id.indexOf('thread_') === 0) {
aTag = spanTag[i].getElementsByTagName("a")[0];
aTag.href = aTag.href.replace(/\amp%3B/g, "");
}
}
},
//Get the value of parameter from a URL
getQueryValue: function(url, name) {
name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
var regexS = "[\\?&]"+name+"=([^&#]*)";
var regex = new RegExp(regexS);
var results = regex.exec(url);
return (results === null) ? "" : results[1];
}
};
HKEPC.init();
})();