Adds keyboard shortcuts for navigating forum pages on teamfortress.tv
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// ==UserScript==
// @name tftv keyboard shortcuts
// @namespace Lense
// @description Adds keyboard shortcuts for navigating forum pages on teamfortress.tv
// @include /^https?://(www\.)?teamfortress.tv/.*/
// @version 0.5
// @grant none
// ==/UserScript==
// Toggle highlighting of focused post. With this off, there are no visual changes.
var focus_highlight = true;
/*
* Style post with a highlight
*/
function focus_post(post) {
if(!focus_highlight) {
return;
}
post.style.background = "#fff";
post.style.boxShadow = "1px 1px 8px";
post.style.zIndex = "1";
}
/*
* Reset style to normal
*/
function unfocus_post(post) {
post.style.background = "";
post.style.boxShadow = "";
post.style.zIndex = "";
}
/*
* Helper function to scroll to post by id
*/
function goto_post(id) {
if(prev_post_id != 0) {
unfocus_post(document.getElementById(prev_post_id));
}
prev_post_id = id;
var post = document.getElementById(id);
post.scrollIntoView();
// Show upper border
window.scrollBy(0,-1);
// Highlight the current post
focus_post(post);
}
/*
* Update styles on plus/minus frag and send the http request
* id is the post id
* frag_action is either plus or minus
*/
function frag(id, frag_action) {
var btn_container = document.querySelector('.post-frag-container[data-post-id="'+id+'"]');
var type;
if(btn_container.classList.contains("self")) {
// This post doesn't actually have frags; it's the OP.
type = "thread";
btn_container = document.querySelector('.thread-frag-container' + (type=="post" ? '[data-'+type+'-id="'+id+'"]' : ''));
} else {
type = "post";
}
// Most of this is ripped+modified from tftv js
var frag_status = btn_container.attributes["data-frag-status"].value;
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 = type=="post" ? btn_container.firstElementChild : btn_container.querySelector("#thread-frag-count");
var new_frag_count = parseInt(frag_count_container.textContent, 10) + diff;
frag_count_container.textContent = new_frag_count;
if(type == "post") {
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';
btn_container.setAttribute("data-frag-status", new_status);
var plus_classes = btn_container.querySelector("." + type + "-frag-btn.plus").classList;
var minus_classes = btn_container.querySelector("." + type + "-frag-btn.minus").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");
}
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if(xmlhttp.readyState == XMLHttpRequest.DONE) {
if(xmlhttp.status != 200) {
alert('VOTE NOT SENT');
}
}
}
xmlhttp.open("POST", '/' + type + '/frag/' + (type=="post" ? id : btn_container.attributes["data-thread-id"].value) + '/' + 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");
focus_post(posts[0]);
var cur_post_index = 0;
var prev_post_id = 0;
/*
* Handle 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_index > 0) {
cur_post_index--;
}
goto_post(posts[cur_post_index].id);
break;
case "s":
if(cur_post_index < posts.length - 1) {
cur_post_index++;
}
goto_post(posts[cur_post_index].id);
break;
case "W":
cur_post_index = 0;
goto_post(posts[cur_post_index].id);
break;
case "S":
cur_post_index = posts.length - 1;
goto_post(posts[cur_post_index].id);
break;
/*
* Frags (+/-)
*/
case "q":
frag(posts[cur_post_index].id.slice(8), "plus");
break;
case "e":
frag(posts[cur_post_index].id.slice(8), "minus");
break;
}};