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wait_ForKeyElements

等待元素出現，再點擊

Цей скрипт не слід встановлювати безпосередньо. Це - бібліотека для інших скриптів для включення в мета директиву // @require https://update.sleazyfork.org/scripts/529226/1550082/wait_ForKeyElements.js 

  1.  
  2. /*--- waitForKeyElements():  A utility function, for Greasemonkey scripts,
  3.     that detects and handles AJAXed content.
  4.  
  5.     Usage example:
  6.  
  7.         waitForKeyElements (
  8.             "div.comments"
  9.             , commentCallbackFunction
  10.         );
  11.  
  12.         //--- Page-specific function to do what we want when the node is found.
  13.         function commentCallbackFunction (jNode) {
  14.             jNode.text ("This comment changed by waitForKeyElements().");
  15.         }
  16.  
  17.     IMPORTANT: This function requires your script to have loaded jQuery.
  18. */
  19. function waitForKeyElements (
  20.     selectorTxt,    /* Required: The jQuery selector string that
  21.                         specifies the desired element(s).
  22.                     */
  23.     actionFunction, /* Required: The code to run when elements are
  24.                         found. It is passed a jNode to the matched
  25.                         element.
  26.                     */
  27.     bWaitOnce,      /* Optional: If false, will continue to scan for
  28.                         new elements even after the first match is
  29.                         found.
  30.                     */
  31.     iframeSelector  /* Optional: If set, identifies the iframe to
  32.                         search.
  33.                     */
  34. ) {
  35.     var targetNodes, btargetsFound;
  36.  
  37.     if (typeof iframeSelector == "undefined")
  38.         targetNodes     = $(selectorTxt);
  39.     else
  40.         targetNodes     = $(iframeSelector).contents ()
  41.                                            .find (selectorTxt);
  42.  
  43.     if (targetNodes  &&  targetNodes.length > 0) {
  44.         btargetsFound   = true;
  45.         /*--- Found target node(s).  Go through each and act if they
  46.             are new.
  47.         */
  48.         targetNodes.each ( function () {
  49.             var jThis        = $(this);
  50.             var alreadyFound = jThis.data ('alreadyFound')  ||  false;
  51.  
  52.             if (!alreadyFound) {
  53.                 //--- Call the payload function.
  54.                 var cancelFound     = actionFunction (jThis);
  55.                 if (cancelFound)
  56.                     btargetsFound   = false;
  57.                 else
  58.                     jThis.data ('alreadyFound', true);
  59.             }
  60.         } );
  61.     }
  62.     else {
  63.         btargetsFound   = false;
  64.     }
  65.  
  66.     //--- Get the timer-control variable for this selector.
  67.     var controlObj      = waitForKeyElements.controlObj  ||  {};
  68.     var controlKey      = selectorTxt.replace (/[^\w]/g, "_");
  69.     var timeControl     = controlObj [controlKey];
  70.  
  71.     //--- Now set or clear the timer as appropriate.
  72.     if (btargetsFound  &&  bWaitOnce  &&  timeControl) {
  73.         //--- The only condition where we need to clear the timer.
  74.         clearInterval (timeControl);
  75.         delete controlObj [controlKey]
  76.     }
  77.     else {
  78.         //--- Set a timer, if needed.
  79.         if ( ! timeControl) {
  80.             timeControl = setInterval ( function () {
  81.                     waitForKeyElements (    selectorTxt,
  82.                                             actionFunction,
  83.                                             bWaitOnce,
  84.                                             iframeSelector
  85.                                         );
  86.                 },
  87.                 300
  88.             );
  89.             controlObj [controlKey] = timeControl;
  90.         }
  91.     }
  92.     waitForKeyElements.controlObj   = controlObj;
  93. }