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tftv keyboard shortcuts

Adds keyboard shortcuts for navigating forum pages on teamfortress.tv

当前为 2016-01-15 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name        tftv keyboard shortcuts
  3. // @namespace   Lense
  4. // @description Adds keyboard shortcuts for navigating forum pages on teamfortress.tv
  5. // @include     /^https?://(www\.)?teamfortress.tv/.*/
  6. // @version     0.5.3
  7. // @grant       none
  8. // ==/UserScript==
  9.  
  10. // Toggle highlighting of focused post. With this off, there are no visual changes.
  11. var focus_highlight = true;
  12.  
  13. /*
  14.  * Style post with a highlight
  15.  */
  16. function focus_post(post) {
  17.   if(!focus_highlight) {
  18.     return;
  19.   }
  20.   post.style.background = "#fff";
  21.   post.style.boxShadow = "1px 1px 8px";
  22.   post.style.zIndex = "1";
  23. }
  24.  
  25. /*
  26.  * Reset style to normal
  27.  */
  28. function unfocus_post(post) {
  29.   post.style.background = "";
  30.   post.style.boxShadow = "";
  31.   post.style.zIndex = "";
  32. }
  33.  
  34. /*
  35.  * Helper function to scroll to post by id
  36.  */
  37. function goto_post(id) {
  38.   unfocus_post(document.getElementById(prev_post_id));
  39.   prev_post_id = id;
  40.  
  41.   var post = document.getElementById(id);
  42.   post.scrollIntoView();
  43.   // Show upper border
  44.   window.scrollBy(0,-1);
  45.   // Highlight the current post
  46.   focus_post(post);
  47. }
  48.  
  49. /*
  50.  * Update styles on plus/minus frag and send the http request
  51.  * id is the post id
  52.  * frag_action is either plus or minus
  53.  */
  54. function frag(id, frag_action) {
  55.   var btn_container = document.querySelector('.post-frag-container[data-post-id="'+id+'"]');
  56.   var type;
  57.   if(btn_container.classList.contains("self")) {
  58.     // This post doesn't actually have frags; it's the OP.
  59.     type = "thread";
  60.     btn_container = document.querySelector('.thread-frag-container' + (type=="post" ? '[data-'+type+'-id="'+id+'"]' : ''));
  61.   } else {
  62.     type = "post";
  63.   }
  64.  
  65.   // Most of this is ripped+modified from tftv js
  66.   var frag_status = btn_container.attributes["data-frag-status"].value;
  67.   if(frag_status == 'neutral' && frag_action == 'plus' || frag_status == 'minused' && frag_action == 'minus')
  68.     var diff = 1;
  69.   if(frag_status == 'neutral' && frag_action == 'minus' || frag_status == 'plused' && frag_action == 'plus')
  70.     var diff = -1;
  71.   if(frag_status == 'minused' && frag_action == 'plus')
  72.     var diff = 2;
  73.   if(frag_status == 'plused' && frag_action == 'minus')
  74.     var diff = -2;
  75.   var frag_count_container = type=="post" ? btn_container.firstElementChild : btn_container.querySelector("#thread-frag-count");
  76.   var new_frag_count = parseInt(frag_count_container.textContent, 10) + diff;
  77.   frag_count_container.textContent = new_frag_count;
  78.   if(type == "post") {
  79.     btn_container.children[0].classList.remove("positive");
  80.     btn_container.children[0].classList.remove("negative");
  81.     btn_container.children[0].classList.remove("neutral");
  82.     btn_container.children[0].classList.add(new_frag_count > 0 ? "positive" : (new_frag_count < 0 ? "negative" : "neutral"));
  83.   }
  84.  
  85.   if(frag_status == 'plused' && frag_action == 'plus' || frag_status == 'minused' && frag_action == 'minus')
  86.     new_status = 'neutral';
  87.   if(frag_action == 'plus' && frag_status !== 'plused')
  88.     new_status = 'plused';
  89.   if(frag_action == 'minus' && frag_status !== 'minused')
  90.     new_status = 'minused';
  91.   btn_container.setAttribute("data-frag-status", new_status);
  92.  
  93.   var plus_classes = btn_container.querySelector("." + type + "-frag-btn.plus").classList;
  94.   var minus_classes = btn_container.querySelector("." + type + "-frag-btn.minus").classList;
  95.   if(frag_action == "plus") {
  96.     if(plus_classes.contains("clicked")) {
  97.       plus_classes.remove("clicked");
  98.     } else {
  99.       plus_classes.add("clicked");
  100.     }
  101.     minus_classes.remove("clicked");
  102.   } else {
  103.     if(minus_classes.contains("clicked")) {
  104.       minus_classes.remove("clicked");
  105.     } else {
  106.       minus_classes.add("clicked");
  107.     }
  108.     plus_classes.remove("clicked");
  109.   }
  110.  
  111.   var xmlhttp = new XMLHttpRequest();
  112.   xmlhttp.onreadystatechange = function() {
  113.     if(xmlhttp.readyState == XMLHttpRequest.DONE) {
  114.       if(xmlhttp.status != 200) {
  115.         alert('VOTE NOT SENT');
  116.       }
  117.     }
  118.   }
  119.   xmlhttp.open("POST", '/' + type + '/frag/' + (type=="post" ? id : btn_container.attributes["data-thread-id"].value) + '/' + frag_action, true);
  120.   xmlhttp.send();
  121. }
  122.  
  123. /*
  124.  * Find the number of pages in the thread
  125.  */
  126. var pageList = document.querySelectorAll(".mod-page");
  127. var lastPage = parseInt(pageList[pageList.length-2].textContent);
  128. if(isNaN(lastPage)) {
  129.   lastPage = 1;
  130. }
  131.  
  132. var posts = document.querySelectorAll(".post");
  133. focus_post(posts[0]);
  134. var cur_post_index = 0;
  135. var prev_post_id = posts[0].id;
  136.  
  137. /*
  138.  * Handle keypresses
  139.  */
  140. document.onkeypress = function(e) {
  141.   // Not entirely sure why this is useful, but it can't break anything that isn't already broken
  142.   e = e || window.event;
  143.   // Ignore keypresses in text boxes, but allow if nothing or a link is selected
  144.   if(e.target.nodeName != "BODY" && e.target.nodeName != "A") {
  145.     // Got keypress, but it's probably in a textbox, so ignore it
  146.     return;
  147.   }
  148.  
  149.   // Current page number
  150.   var page = window.location.search == "" || parseInt(window.location.search.match("page=([0-9]*)")[1]);
  151.  
  152.   switch(e["key"]) {
  153.     /*
  154.      * Pages (left/right)
  155.      */
  156.     case "d":
  157.       if(page != lastPage) {
  158.         page = (page+1).toString();
  159.         window.location.search = "?page=" + page;
  160.       }
  161.       break;
  162.     case "a":
  163.       if(page != 1) {
  164.         page = (page-1).toString();
  165.         window.location.search = "?page=" + page;
  166.       }
  167.       break;
  168.     case "D":
  169.       if(page != lastPage) {
  170.         window.location.search = "?page=" + lastPage.toString();
  171.       }
  172.       break;
  173.     case "A":
  174.       if(page != 1) {
  175.         window.location.search = "?page=1";
  176.       }
  177.       break;
  178.     /*
  179.      * Posts (up/down)
  180.      */
  181.     case "w":
  182.       if(cur_post_index > 0) {
  183.         cur_post_index--;
  184.       }
  185.       goto_post(posts[cur_post_index].id);
  186.       break;
  187.     case "s":
  188.       if(cur_post_index < posts.length - 1) {
  189.         cur_post_index++;
  190.       }
  191.       goto_post(posts[cur_post_index].id);
  192.       break;
  193.     case "W":
  194.       cur_post_index = 0;
  195.       goto_post(posts[cur_post_index].id);
  196.       break;
  197.     case "S":
  198.       cur_post_index = posts.length - 1;
  199.       goto_post(posts[cur_post_index].id);
  200.       break;
  201.     /*
  202.      * Frags (+/-)
  203.      */
  204.     case "q":
  205.       frag(posts[cur_post_index].id.slice(8), "plus");
  206.       break;
  207.     case "e":
  208.       frag(posts[cur_post_index].id.slice(8), "minus");
  209.       break;
  210.   }};