Adds keyboard shortcuts for navigating forum pages on teamfortress.tv
Per
// ==UserScript==
// @name tftv keyboard shortcuts
// @namespace Lense
// @description Adds keyboard shortcuts for navigating forum pages on teamfortress.tv
// @include /^https?://(www\.)?teamfortress.tv/.*/
// @version 0.4
// @grant none
// ==/UserScript==
/*
* Helper function to scroll to post by id
*/
function goto_post(id) {
document.getElementById(id).scrollIntoView();
// Show upper border
window.scrollBy(0,-1);
}
function frag(id, type, frag_action) {
var btn_container = document.querySelector('.'+type+'-frag-container[data-'+type+'-id="'+id+'"]');
var frag_status = btn_container.attributes["data-frag-status"].nodeValue;
if (frag_status == 'neutral' && frag_action == 'plus' || frag_status == 'minused' && frag_action == 'minus')
var diff = 1;
if (frag_status == 'neutral' && frag_action == 'minus' || frag_status == 'plused' && frag_action == 'plus')
var diff = -1;
if (frag_status == 'minused' && frag_action == 'plus')
var diff = 2;
if (frag_status == 'plused' && frag_action == 'minus')
var diff = -2;
var frag_count_container = btn_container.firstElementChild;
var new_frag_count = parseInt(frag_count_container.textContent, 10) + diff;
frag_count_container.textContent = new_frag_count;
btn_container.children[0].classList.remove("positive");
btn_container.children[0].classList.remove("negative");
btn_container.children[0].classList.remove("neutral");
btn_container.children[0].classList.add(new_frag_count > 0 ? "positive" : (new_frag_count < 0 ? "negative" : "neutral"));
if (frag_status == 'plused' && frag_action == 'plus' || frag_status == 'minused' && frag_action == 'minus')
new_status = 'neutral';
if (frag_action == 'plus' && frag_status !== 'plused')
new_status = 'plused';
if (frag_action == 'minus' && frag_status !== 'minused')
new_status = 'minused';
var plus_classes = btn_container.children[3].classList;
var minus_classes = btn_container.children[2].classList;
if(frag_action == "plus") {
if(plus_classes.contains("clicked")) {
plus_classes.remove("clicked");
} else {
plus_classes.add("clicked");
}
minus_classes.remove("clicked");
} else {
if(minus_classes.contains("clicked")) {
minus_classes.remove("clicked");
} else {
minus_classes.add("clicked");
}
plus_classes.remove("clicked");
}
btn_container.setAttribute("data-frag-status", new_status);
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == XMLHttpRequest.DONE ) {
if(xmlhttp.status == 200){
console.log(xmlhttp.responseText);
}
else if(xmlhttp.status == 400) {
alert('There was an error 400')
}
else {
alert('something else other than 200 was returned')
}
}
}
xmlhttp.open("POST", '/' + type + '/frag/' + id + '/' + frag_action, true);
xmlhttp.send();
}
/*
* Find the number of pages in the thread
*/
var pageList = document.querySelectorAll(".page-btn");
var lastPage = parseInt(pageList[pageList.length-2].textContent);
var posts = document.querySelectorAll(".post");
var cur_post = 0;
/*
* Get and process keypresses
*/
document.onkeypress = function (e) {
// Not entirely sure why this is useful, but it can't break anything that isn't already broken
e = e || window.event;
// Ignore keypresses in text boxes, but allow if nothing or a link is selected
if(e.target.nodeName != "BODY" && e.target.nodeName != "A") {
// Got keypress, but it's probably in a textbox, so ignore it
return;
}
// Current page number
var page = window.location.search == "" || parseInt(window.location.search.match("page=([0-9]*)")[1]);
switch(e["key"]) {
/*
* Pages (left/right)
*/
case "d":
if(page != lastPage) {
page = (page+1).toString();
window.location.search = "?page=" + page;
}
break;
case "a":
if(page != 1) {
page = (page-1).toString();
window.location.search = "?page=" + page;
}
break;
case "D":
if(page != lastPage) {
window.location.search = "?page=" + lastPage.toString();
}
break;
case "A":
if(page != 1) {
window.location.search = "?page=1";
}
break;
/*
* Posts (up/down)
*/
case "w":
if(cur_post > 0) {
cur_post--;
}
goto_post(posts[cur_post].id);
break;
case "s":
if(cur_post < posts.length - 1) {
cur_post++;
}
goto_post(posts[cur_post].id);
break;
case "W":
cur_post = 0;
goto_post(posts[cur_post].id);
break;
case "S":
cur_post = posts.length - 1;
goto_post(posts[cur_post].id);
break;
/*
* Frags (+/-)
*/
case "q":
frag(posts[cur_post].id.slice(8), (cur_post == 0 && page == 1) ? "thread" : "post", "plus");
break;
case "e":
frag(posts[cur_post].id.slice(8), "post", "minus");
break;
}};