Question

我试图在＆＃34;控制栏中添加一个按钮＆＃34;在Netflix上使用Greasemonkey。我已经成功地在头部添加了一个样式标签，并在主体上添加了一个脚本。由于Netflix使用AJAX来实现所有，我使用waitForKeyElements来调用函数来插入按钮。

我一直在使用Firebug来查看Netflix的HTML（相关代码如下所示）。我想为该按钮插入另一个div作为该部分的子项。该按钮适合音量按钮和播放器状态。

＆＃13;

<section class="player-control-bar no-select" role="control-bar">
  <div class="player-control-button player-play-pause pause icon-player-pause" tabindex="0" role="button" aria-label="Pause"></div>
  <div class="player-control-button volume icon-player-volume-full icon-player-volume-3" tabindex="0" role="button" aria-label="Mute">
  <div class="player-status">

＆＃13;

为了进行添加，waitForKeyElements函数接收jQuery选择器（selectorTxt =＆＃34; section.player-control-bar＆＃34;）和函数名称（actionFunction = addDiv），它们作为字符串传输。

将section对象存储到jNode后，调用addDiv函数插入按钮。然而，div（fiv）不会附加到该部分。

＆＃13;

// ==UserScript==
// @name        Netflix Ajax
// @namespace   https://www.netflix.com/watch
// @include     https://*.netflix.com/watch*
// @require     http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js
// @version     1
// @grant       none
// ==/UserScript==

waitForKeyElements (
    "section.player-control-bar" // also tried: "div.player-status"
    , addDiv
);

function waitForKeyElements (
    selectorTxt,    /* Required: The jQuery selector string that specifies the desired element(s). */
    actionFunction, /* Required: The code to run when elements are found. It is passed a jNode to the matched element.*/
    bWaitOnce,      /* Optional: If false, will continue to scan for new elements even after the first match is found.*/
    iframeSelector  /* Optional: If set, identifies the iframe to search.*/
) {
    var targetNodes, btargetsFound;
 
    if (typeof iframeSelector == "undefined"){
        targetNodes     = $(selectorTxt);
    }
    else{
        targetNodes     = $(iframeSelector).contents ()
                                           .find (selectorTxt);
    }

    if (targetNodes  &&  targetNodes.length > 0) {
        btargetsFound   = true;
        /*--- Found target node(s).  Go through each and act if they
            are new.
        */
        targetNodes.each ( function () {
            var jThis        = $(this);
            var alreadyFound = jThis.data ('alreadyFound')  ||  false;
 
            if (!alreadyFound) {
                //--- Call the payload function.
                var cancelFound     = actionFunction (jThis);
                if (cancelFound)
                    btargetsFound   = false;
                else
                    jThis.data ('alreadyFound', true);
            }
        } );
    }
    else {
        btargetsFound   = false;
    }
 
    //--- Get the timer-control variable for this selector.
    var controlObj      = waitForKeyElements.controlObj  ||  {};
    var controlKey      = selectorTxt.replace (/[^\w]/g, "_");
    var timeControl     = controlObj [controlKey];
 
    //--- Now set or clear the timer as appropriate.
    if (btargetsFound  &&  bWaitOnce  &&  timeControl) {
        //--- The only condition where we need to clear the timer.
        clearInterval (timeControl);
        delete controlObj [controlKey]
    }
    else {
        //--- Set a timer, if needed.
        if ( ! timeControl) {
            timeControl = setInterval ( function () {
                    waitForKeyElements (    selectorTxt,
                                            actionFunction,
                                            bWaitOnce,
                                            iframeSelector
                                        );
                },
                300
            );
            controlObj [controlKey] = timeControl;
        }
    }
    waitForKeyElements.controlObj   = controlObj;
}

function addDiv (jNode) {
  var fiv = document.createElement('div');
  fiv.setAttribute("class", "player-control-button player-filter icon-player-play");
  fiv.setAttribute("tabindex", "0");
  fiv.setAttribute("role", "button");
  fiv.setAttribute("aria-label", "Filter");
  fiv.setAttribute("on-click", "myFunction()"); 
  jNode.append(fiv);
  //Other Attempts:
  //fiv.insertBefore(jNode);
  //jNode.prepend(fiv);
  //jNode.appendChild(fiv);
  //jNode.before(fiv);
  //jNode.parent("section").appendChild(fiv);
}

＆＃13;

我测试完全相同的代码只是交换播放器状态类的部分，它完美地插入按钮的代码（只是在错误的地方）。从div标签，我尝试了fiv.insertBefore（jNode），jNode.before（fiv）和jNode.parent（＆＃34; section＆＃34;）。appendChild（fiv）。知道为什么jNode不会附加到该部分吗？

将按钮添加到Netflix控制栏（Greasemonkey，AJAX，waitForKeyElements）

0 个答案: