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Like Shortcut (Toggle Like)

Like YouTube Videos per Shortcut (default "O")

  1. // ==UserScript==
  2. // @name         Like Shortcut (Toggle Like)
  3. // @namespace    http://tampermonkey.net/
  4. // @version      0.1
  5. // @description  Like YouTube Videos per Shortcut (default "O")
  6. // @author       You
  7. // @match        https://www.youtube.com/*
  8. // @icon         https://www.google.com/s2/favicons?domain=youtube.com
  9. // @grant        none
  10. // ==/UserScript==
  11.  
  12. (function() {
  13.     'use strict';
  14.  
  15.  
  16.     // >>>>>>>>>>>> SETTINGS >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
  17.  
  18.     const LIKE_SHORTCUT = "O" //YT uses L for forward
  19.  
  20.     // <<<<<<<<<<<< SETTINGS <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
  21.  
  22.     const shortcut = {
  23.         'all_shortcuts':{},//All the shortcuts are stored in this array
  24.         'add': function(shortcut_combination,callback,opt) {
  25.             //Provide a set of default options
  26.             var default_options = {
  27.                 'type':'keydown',
  28.                 'propagate':false,
  29.                 'disable_in_input':false,
  30.                 'target':document,
  31.                 'keycode':false
  32.             }
  33.             if(!opt) opt = default_options;
  34.             else {
  35.                 for(var dfo in default_options) {
  36.                     if(typeof opt[dfo] == 'undefined') opt[dfo] = default_options[dfo];
  37.                 }
  38.             }
  39.  
  40.             var ele = opt.target;
  41.             if(typeof opt.target == 'string') ele = document.getElementById(opt.target);
  42.             var ths = this;
  43.             shortcut_combination = shortcut_combination.toLowerCase();
  44.  
  45.             //The function to be called at keypress
  46.             var func = function(e) {
  47.                 e = e || window.event;
  48.  
  49.                 if(opt['disable_in_input']) { //Don't enable shortcut keys in Input, Textarea fields
  50.                     var element;
  51.                     if(e.target) element=e.target;
  52.                     else if(e.srcElement) element=e.srcElement;
  53.                     if(element.nodeType==3) element=element.parentNode;
  54.  
  55.                     if(element.tagName == 'INPUT' || element.tagName == 'TEXTAREA') return;
  56.                 }
  57.  
  58.                 //Find Which key is pressed
  59.                 var code;
  60.                 if (e.keyCode) code = e.keyCode;
  61.                 else if (e.which) code = e.which;
  62.                 var character = String.fromCharCode(code).toLowerCase();
  63.  
  64.                 if(code == 188) character=","; //If the user presses , when the type is onkeydown
  65.                 if(code == 190) character="."; //If the user presses , when the type is onkeydown
  66.  
  67.                 var keys = shortcut_combination.split("+");
  68.                 //Key Pressed - counts the number of valid keypresses - if it is same as the number of keys, the shortcut function is invoked
  69.                 var kp = 0;
  70.  
  71.                 //Work around for stupid Shift key bug created by using lowercase - as a result the shift+num combination was broken
  72.                 var shift_nums = {
  73.                     "`":"~",
  74.                     "1":"!",
  75.                     "2":"@",
  76.                     "3":"#",
  77.                     "4":"$",
  78.                     "5":"%",
  79.                     "6":"^",
  80.                     "7":"&",
  81.                     "8":"*",
  82.                     "9":"(",
  83.                     "0":")",
  84.                     "-":"_",
  85.                     "=":"+",
  86.                     ";":":",
  87.                     "'":"\"",
  88.                     ",":"<",
  89.                     ".":">",
  90.                     "/":"?",
  91.                     "\\":"|"
  92.                 }
  93.                 //Special Keys - and their codes
  94.                 var special_keys = {
  95.                     'esc':27,
  96.                     'escape':27,
  97.                     'tab':9,
  98.                     'space':32,
  99.                     'return':13,
  100.                     'enter':13,
  101.                     'backspace':8,
  102.  
  103.                     'scrolllock':145,
  104.                     'scroll_lock':145,
  105.                     'scroll':145,
  106.                     'capslock':20,
  107.                     'caps_lock':20,
  108.                     'caps':20,
  109.                     'numlock':144,
  110.                     'num_lock':144,
  111.                     'num':144,
  112.  
  113.                     'pause':19,
  114.                     'break':19,
  115.  
  116.                     'insert':45,
  117.                     'home':36,
  118.                     'delete':46,
  119.                     'end':35,
  120.  
  121.                     'pageup':33,
  122.                     'page_up':33,
  123.                     'pu':33,
  124.  
  125.                     'pagedown':34,
  126.                     'page_down':34,
  127.                     'pd':34,
  128.  
  129.                     'left':37,
  130.                     'up':38,
  131.                     'right':39,
  132.                     'down':40,
  133.  
  134.                     'f1':112,
  135.                     'f2':113,
  136.                     'f3':114,
  137.                     'f4':115,
  138.                     'f5':116,
  139.                     'f6':117,
  140.                     'f7':118,
  141.                     'f8':119,
  142.                     'f9':120,
  143.                     'f10':121,
  144.                     'f11':122,
  145.                     'f12':123
  146.                 }
  147.  
  148.                 var modifiers = {
  149.                     shift: { wanted:false, pressed:false},
  150.                     ctrl : { wanted:false, pressed:false},
  151.                     alt  : { wanted:false, pressed:false},
  152.                     meta : { wanted:false, pressed:false}	//Meta is Mac specific
  153.                 };
  154.  
  155.                 if(e.ctrlKey)	modifiers.ctrl.pressed = true;
  156.                 if(e.shiftKey)	modifiers.shift.pressed = true;
  157.                 if(e.altKey)	modifiers.alt.pressed = true;
  158.                 if(e.metaKey)   modifiers.meta.pressed = true;
  159.  
  160.                 var k;
  161.                 for(var i=0; k=keys[i],i<keys.length; i++) {
  162.                     //Modifiers
  163.                     if(k == 'ctrl' || k == 'control') {
  164.                         kp++;
  165.                         modifiers.ctrl.wanted = true;
  166.  
  167.                     } else if(k == 'shift') {
  168.                         kp++;
  169.                         modifiers.shift.wanted = true;
  170.  
  171.                     } else if(k == 'alt') {
  172.                         kp++;
  173.                         modifiers.alt.wanted = true;
  174.                     } else if(k == 'meta') {
  175.                         kp++;
  176.                         modifiers.meta.wanted = true;
  177.                     } else if(k.length > 1) { //If it is a special key
  178.                         if(special_keys[k] == code) kp++;
  179.  
  180.                     } else if(opt['keycode']) {
  181.                         if(opt['keycode'] == code) kp++;
  182.  
  183.                     } else { //The special keys did not match
  184.                         if(character == k) kp++;
  185.                         else {
  186.                             if(shift_nums[character] && e.shiftKey) { //Stupid Shift key bug created by using lowercase
  187.                                 character = shift_nums[character];
  188.                                 if(character == k) kp++;
  189.                             }
  190.                         }
  191.                     }
  192.                 }
  193.  
  194.                 if(kp == keys.length &&
  195.                    modifiers.ctrl.pressed == modifiers.ctrl.wanted &&
  196.                    modifiers.shift.pressed == modifiers.shift.wanted &&
  197.                    modifiers.alt.pressed == modifiers.alt.wanted &&
  198.                    modifiers.meta.pressed == modifiers.meta.wanted) {
  199.                     callback(e);
  200.  
  201.                     if(!opt['propagate']) { //Stop the event
  202.                         //e.cancelBubble is supported by IE - this will kill the bubbling process.
  203.                         e.cancelBubble = true;
  204.                         e.returnValue = false;
  205.  
  206.                         //e.stopPropagation works in Firefox.
  207.                         if (e.stopPropagation) {
  208.                             e.stopPropagation();
  209.                             e.preventDefault();
  210.                         }
  211.                         return false;
  212.                     }
  213.                 }
  214.             }
  215.             this.all_shortcuts[shortcut_combination] = {
  216.                 'callback':func,
  217.                 'target':ele,
  218.                 'event': opt['type']
  219.             };
  220.             //Attach the function with the event
  221.             if(ele.addEventListener) ele.addEventListener(opt['type'], func, false);
  222.             else if(ele.attachEvent) ele.attachEvent('on'+opt['type'], func);
  223.             else ele['on'+opt['type']] = func;
  224.         },
  225.  
  226.         //Remove the shortcut - just specify the shortcut and I will remove the binding
  227.         'remove':function(shortcut_combination) {
  228.             shortcut_combination = shortcut_combination.toLowerCase();
  229.             var binding = this.all_shortcuts[shortcut_combination];
  230.             delete(this.all_shortcuts[shortcut_combination])
  231.             if(!binding) return;
  232.             var type = binding['event'];
  233.             var ele = binding['target'];
  234.             var callback = binding['callback'];
  235.  
  236.             if(ele.detachEvent) ele.detachEvent('on'+type, callback);
  237.             else if(ele.removeEventListener) ele.removeEventListener(type, callback, false);
  238.             else ele['on'+type] = false;
  239.         }
  240.     }
  241.  
  242.  
  243.      shortcut.add(
  244.          LIKE_SHORTCUT,
  245.          () => {
  246.              document.getElementsByTagName("ytd-video-primary-info-renderer")[0].children[0].children[5].children[2].children[0].children[0].children[0].children[0].children[0].children[0].click()
  247.          },
  248.          {
  249.             type: "keydown",
  250.             disable_in_input: true
  251.          }
  252.      );
  253.     
  254. })();

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