javascript - 如何在网页中添加自定义右键菜单？

Question

我想向我的 Web 应用程序添加自定义右键菜单。这可以在不使用任何预建库的情况下完成吗？如果是这样，如何显示一个不使用第三方 JavaScript 库的简单自定义右键菜单？

我的目标是类似于 Google Docs 所做的事情。它允许用户右键单击并向用户显示他们自己的菜单。

注意： 我想学习如何制作自己的东西而不是使用别人已经制作的东西，因为大多数时候，那些第 3 方库的功能很臃肿，而我只想要我需要的功能，所以我希望它完全由手工制作我。

score 298 · Accepted Answer

回答您的问题 - 使用contextmenu事件，如下所示：

if (document.addEventListener) {
  document.addEventListener('contextmenu', function(e) {
    alert("You've tried to open context menu"); //here you draw your own menu
    e.preventDefault();
  }, false);
} else {
  document.attachEvent('oncontextmenu', function() {
    alert("You've tried to open context menu");
    window.event.returnValue = false;
  });
}

<body>
  Lorem ipsum...
</body>

但是您应该问自己，您是否真的要覆盖默认的右键单击行为 - 这取决于您正在开发的应用程序。

JSFIDDLE

score 75 · Accepted Answer

对我非常有用。为了像我这样的人，期待菜单的绘制，我把我用来制作右键菜单的代码放在这里：

$(document).ready(function() {


  if ($("#test").addEventListener) {
    $("#test").addEventListener('contextmenu', function(e) {
      alert("You've tried to open context menu"); //here you draw your own menu
      e.preventDefault();
    }, false);
  } else {

    //document.getElementById("test").attachEvent('oncontextmenu', function() {
    //$(".test").bind('contextmenu', function() {
    $('body').on('contextmenu', 'a.test', function() {


      //alert("contextmenu"+event);
      document.getElementById("rmenu").className = "show";
      document.getElementById("rmenu").style.top = mouseY(event) + 'px';
      document.getElementById("rmenu").style.left = mouseX(event) + 'px';

      window.event.returnValue = false;


    });
  }

});

// this is from another SO post...  
$(document).bind("click", function(event) {
  document.getElementById("rmenu").className = "hide";
});



function mouseX(evt) {
  if (evt.pageX) {
    return evt.pageX;
  } else if (evt.clientX) {
    return evt.clientX + (document.documentElement.scrollLeft ?
      document.documentElement.scrollLeft :
      document.body.scrollLeft);
  } else {
    return null;
  }
}

function mouseY(evt) {
  if (evt.pageY) {
    return evt.pageY;
  } else if (evt.clientY) {
    return evt.clientY + (document.documentElement.scrollTop ?
      document.documentElement.scrollTop :
      document.body.scrollTop);
  } else {
    return null;
  }
}

.show {
  z-index: 1000;
  position: absolute;
  background-color: #C0C0C0;
  border: 1px solid blue;
  padding: 2px;
  display: block;
  margin: 0;
  list-style-type: none;
  list-style: none;
}

.hide {
  display: none;
}

.show li {
  list-style: none;
}

.show a {
  border: 0 !important;
  text-decoration: none;
}

.show a:hover {
  text-decoration: underline !important;
}

<!-- jQuery should be at least version 1.7 -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script src="contextmenu.js"></script>
<link rel="stylesheet" href="contextmenu.css" />


<div id="test1">
  <a href="www.google.com" class="test">Google</a>
  <a href="www.google.com" class="test">Link 2</a>
  <a href="www.google.com" class="test">Link 3</a>
  <a href="www.google.com" class="test">Link 4</a>
</div>

<!-- initially hidden right-click menu -->
<div class="hide" id="rmenu">
  <ul>
    <li>
      <a href="http://www.google.com">Google</a>
    </li>

    <li>
      <a href="http://localhost:8080/login">Localhost</a>
    </li>

    <li>
      <a href="C:\">C</a>
    </li>
  </ul>
</div>

score 43 · Accepted Answer

一些不错的 CSS 和一些没有外部库的非标准 html 标签的组合可以产生很好的结果（JSFiddle）

HTML

<menu id="ctxMenu">
    <menu title="File">
        <menu title="Save"></menu>
        <menu title="Save As"></menu>
        <menu title="Open"></menu>
    </menu>
    <menu title="Edit">
        <menu title="Cut"></menu>
        <menu title="Copy"></menu>
        <menu title="Paste"></menu>
    </menu>
</menu>

注意：菜单标签不存在，我在编（你可以用任何东西）

CSS

#ctxMenu{
    display:none;
    z-index:100;
}
menu {
    position:absolute;
    display:block;
    left:0px;
    top:0px;
    height:20px;
    width:20px;
    padding:0;
    margin:0;
    border:1px solid;
    background-color:white;
    font-weight:normal;
    white-space:nowrap;
}
menu:hover{
    background-color:#eef;
    font-weight:bold;
}
menu:hover > menu{
    display:block;
}
menu > menu{
    display:none;
    position:relative;
    top:-20px;
    left:100%;
    width:55px;
}
menu[title]:before{
    content:attr(title);
}
menu:not([title]):before{
    content:"\2630";
}

JavaScript仅用于此示例，我个人将其删除以用于 Windows 上的持久菜单

var notepad = document.getElementById("notepad");
notepad.addEventListener("contextmenu",function(event){
    event.preventDefault();
    var ctxMenu = document.getElementById("ctxMenu");
    ctxMenu.style.display = "block";
    ctxMenu.style.left = (event.pageX - 10)+"px";
    ctxMenu.style.top = (event.pageY - 10)+"px";
},false);
notepad.addEventListener("click",function(event){
    var ctxMenu = document.getElementById("ctxMenu");
    ctxMenu.style.display = "";
    ctxMenu.style.left = "";
    ctxMenu.style.top = "";
},false);

另请注意，您可以修改menu > menu{left:100%;}为menu > menu{right:100%;}从右向左扩展的菜单。您需要在某处添加边距或其他内容

score 32 · Accepted Answer

根据此处和其他流程的答案，我制作了一个看起来像 Google Chrome 的版本，带有 css3 转换。 JS Fiddle

让我们开始吧，因为我们在这个页面上有上面的js，我们可以担心css和布局。我们将使用的布局是一个<a>带有一个<img>元素或字体真棒图标 ( <i class="fa fa-flag"></i>) 和一个<span>用于显示键盘快捷键的元素。所以这是结构：

<a href="#" onclick="doSomething()">
  <img src="path/to/image.gif" />
  This is a menu option
  <span>Ctrl + K</span>
</a>

我们将把它们放在一个 div 中，并在右键单击时显示该 div。让我们像在 Google Chrome 中一样设置它们的样式，好吗？

#menu a {
  display: block;
  color: #555;
  text-decoration: no[...]

现在我们将从接受的答案中添加代码，并获取光标的 X 和 Y 值。为此，我们将使用e.clientXand e.clientY。我们正在使用客户端，因此必须修复菜单 div。

var i = document.getElementById("menu").style;
if (document.addEventListener) {
  document.addEventListener('contextmenu', function(e) {
    var posX = e.clientX;
    var posY = e.client[...]

就是这样！只需添加 css 过渡以淡入和淡出，就完成了！

var i = document.getElementById("menu").style;
if (document.addEventListener) {
  document.addEventListener('contextmenu', function(e) {
    var posX = e.clientX;
    var posY = e.clientY;
    menu(posX, posY);
    e.preventDefault();
  }, false);
  document.addEventListener('click', function(e) {
    i.opacity = "0";
    setTimeout(function() {
      i.visibility = "hidden";
    }, 501);
  }, false);
} else {
  document.attachEvent('oncontextmenu', function(e) {
    var posX = e.clientX;
    var posY = e.clientY;
    menu(posX, posY);
    e.preventDefault();
  });
  document.attachEvent('onclick', function(e) {
    i.opacity = "0";
    setTimeout(function() {
      i.visibility = "hidden";
    }, 501);
  });
}

function menu(x, y) {
  i.top = y + "px";
  i.left = x + "px";
  i.visibility = "visible";
  i.opacity = "1";
}

body {
  background: white;
  font-family: sans-serif;
  color: #5e5e5e;
}

#menu {
  visibility: hidden;
  opacity: 0;
  position: fixed;
  background: #fff;
  color: #555;
  font-family: sans-serif;
  font-size: 11px;
  -webkit-transition: opacity .5s ease-in-out;
  -moz-transition: opacity .5s ease-in-out;
  -ms-transition: opacity .5s ease-in-out;
  -o-transition: opacity .5s ease-in-out;
  transition: opacity .5s ease-in-out;
  -webkit-box-shadow: 2px 2px 2px 0px rgba(143, 144, 145, 1);
  -moz-box-shadow: 2px 2px 2px 0px rgba(143, 144, 145, 1);
  box-shadow: 2px 2px 2px 0px rgba(143, 144, 145, 1);
  padding: 0px;
  border: 1px solid #C6C6C6;
}

#menu a {
  display: block;
  color: #555;
  text-decoration: none;
  padding: 6px 8px 6px 30px;
  width: 250px;
  position: relative;
}

#menu a img,
#menu a i.fa {
  height: 20px;
  font-size: 17px;
  width: 20px;
  position: absolute;
  left: 5px;
  top: 2px;
}

#menu a span {
  color: #BCB1B3;
  float: right;
}

#menu a:hover {
  color: #fff;
  background: #3879D9;
}

#menu hr {
  border: 1px solid #EBEBEB;
  border-bottom: 0;
}

<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css" rel="stylesheet"/>
<h2>CSS3 and JAVASCRIPT custom menu.</h2>
<em>Stephan Stanisic | Lisence free</em>
<p>Right-click anywhere on this page to open the custom menu. Styled like the Google Chrome contextmenu. And yes, you can use <i class="fa fa-flag"></i>font-awesome</p>
<p style="font-size: small">
  <b>Lisence</b>
  <br /> "THE PIZZA-WARE LICENSE" (Revision 42):
  <br /> You can do whatever you want with this stuff. If we meet some day, and you think this stuff is worth it, you can buy me a Pizza in return.
  <br />
  <a style="font-size:xx-small" href="https://github.com/KLVN/UrbanDictionary_API#license">https://github.com/KLVN/UrbanDictionary_API#license</a>
</p>
<br />
<br />
<small>(The white body background is just because I hate the light blue editor background on the result on jsfiddle)</small>
<div id="menu">
  <a href="#">
    <img src="http://puu.sh/nr60s/42df867bf3.png" /> AdBlock Plus <span>Ctrl + ?!</span>
  </a>
  <a href="#">
    <img src="http://puu.sh/nr5Z6/4360098fc1.png" /> SNTX <span>Ctrl + ?!</span>
  </a>
  <hr />
  <a href="#">
    <i class="fa fa-fort-awesome"></i> Fort Awesome <span>Ctrl + ?!</span>
  </a>
  <a href="#">
    <i class="fa fa-flag"></i> Font Awesome <span>Ctrl + ?!</span>
  </a>
</div>

score 14 · Accepted Answer

您可以尝试通过将以下内容添加到您的正文标签来简单地阻止上下文菜单：

<body oncontextmenu="return false;">

这将阻止对上下文菜单的所有访问（不仅来自鼠标右键，还来自键盘）。

PS您可以将其添加到要禁用上下文菜单的任何标签

例如：

<div class="mydiv" oncontextmenu="return false;">

将仅禁用该特定 div 中的上下文菜单

score 14 · Accepted Answer

最简单的跳转启动功能，在光标位置创建一个上下文菜单，在鼠标离开时自行销毁。

oncontextmenu = (e) => {
  e.preventDefault()
  let menu = document.createElement("div")
  menu.id = "ctxmenu"
  menu.style = `top:${e.pageY-10}px;left:${e.pageX-40}px`
  menu.onmouseleave = () => ctxmenu.outerHTML = ''
  menu.innerHTML = "<p>Option1</p><p>Option2</p><p>Option3</p><p>Option4</p><p onclick='alert(`Thank you!`)'>Upvote</p>"
  document.body.appendChild(menu)
}

#ctxmenu {
  position: fixed;
  background:ghostwhite;
  color: black;
  cursor: pointer;
  border: 1px black solid
}

#ctxmenu > p {
  padding: 0 1rem;
  margin: 0
}

#ctxmenu > p:hover {
  background: black;
  color: ghostwhite
}

score 13 · Accepted Answer

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<head>

<title>Context menu - LabLogic.net</title>

</head>
<body>

<script language="javascript" type="text/javascript">

document.oncontextmenu=RightMouseDown;
document.onmousedown = mouseDown; 



function mouseDown(e) {
    if (e.which==3) {//righClick
        alert("Right-click menu goes here");
    }
}


function RightMouseDown() { return false; }

</script>

</body>
</html>

在 Opera 11.6、firefox 9.01、Internet Explorer 9 和 chrome 17 中测试和工作您可以在javascript 右键菜单中查看工作示例

score 13 · Accepted Answer

纯 JS 和 css 解决方案，用于真正动态的右键单击上下文菜单，尽管它基于元素 id、链接等的预定义命名约定。jsfiddle 和您可以复制粘贴到单个静态 html 页面中的代码：

var rgtClickContextMenu = document.getElementById('div-context-menu');

/** close the right click context menu on click anywhere else in the page*/
document.onclick = function(e) {
  rgtClickContextMenu.style.display = 'none';
}

/**
 present the right click context menu ONLY for the elements having the right class
 by replacing the 0 or any digit after the "to-" string with the element id , which
 triggered the event
*/
document.oncontextmenu = function(e) {
  //alert(e.target.id)
  var elmnt = e.target
  if (elmnt.className.startsWith("cls-context-menu")) {
    e.preventDefault();
    var eid = elmnt.id.replace(/link-/, "")
    rgtClickContextMenu.style.left = e.pageX + 'px'
    rgtClickContextMenu.style.top = e.pageY + 'px'
    rgtClickContextMenu.style.display = 'block'
    var toRepl = "to=" + eid.toString()
    rgtClickContextMenu.innerHTML = rgtClickContextMenu.innerHTML.replace(/to=\d+/g, toRepl)
    //alert(rgtClickContextMenu.innerHTML.toString())
  }
}

.cls-context-menu-link {
  display: block;
  padding: 20px;
  background: #ECECEC;
}

.cls-context-menu {
  position: absolute;
  display: none;
}

.cls-context-menu ul,
#context-menu li {
  list-style: none;
  margin: 0;
  padding: 0;
  background: white;
}

.cls-context-menu {
  border: solid 1px #CCC;
}

.cls-context-menu li {
  border-bottom: solid 1px #CCC;
}

.cls-context-menu li:last-child {
  border: none;
}

.cls-context-menu li a {
  display: block;
  padding: 5px 10px;
  text-decoration: none;
  color: blue;
}

.cls-context-menu li a:hover {
  background: blue;
  color: #FFF;
}

<!-- those are the links which should present the dynamic context menu -->
<a id="link-1" href="#" class="cls-context-menu-link">right click link-01</a>
<a id="link-2" href="#" class="cls-context-menu-link">right click link-02</a>

<!-- this is the context menu -->
<!-- note the string to=0 where the 0 is the digit to be replaced -->
<div id="div-context-menu" class="cls-context-menu">
  <ul>
    <li><a href="#to=0">link-to=0 -item-1 </a></li>
    <li><a href="#to=0">link-to=0 -item-2 </a></li>
    <li><a href="#to=0">link-to=0 -item-3 </a></li>
  </ul>
</div>

score 7 · Accepted Answer

我知道这已经得到了回答，但是我花了一些时间来解决第二个答案，以使本机上下文菜单消失并显示在用户单击的位置。
HTML

<body>
    <div id="test1">
        <a href="www.google.com" class="test">Google</a>
        <a href="www.google.com" class="test">Link 2</a>
        <a href="www.google.com" class="test">Link 3</a>
        <a href="www.google.com" class="test">Link 4</a>
    </div>

    <!-- initially hidden right-click menu -->
    <div class="hide" id="rmenu">
        <ul>
            <li class="White">White</li>
            <li>Green</li>
            <li>Yellow</li>
            <li>Orange</li>
            <li>Red</li>
            <li>Blue</li>
        </ul>
    </div>
</body>

CSS

.hide {
  display: none;
}

#rmenu {
  border: 1px solid black;
  background-color: white;
}

#rmenu ul {
  padding: 0;
  list-style: none;
}
#rmenu li
{
  list-style: none;
  padding-left: 5px;
  padding-right: 5px;
}

JavaScript

if (document.getElementById('test1').addEventListener) {
    document.getElementById('test1').addEventListener('contextmenu', function(e) {
            $("#rmenu").toggleClass("hide");
            $("#rmenu").css(
              {
                position: "absolute",
                top: e.pageY,
                left: e.pageX
              }
            );
            e.preventDefault();
     }, false);
}

// this is from another SO post...  
$(document).bind("click", function(event) {
  document.getElementById("rmenu").className = "hide";
});

CodePen 示例

score 6 · Accepted Answer

试试这个

$(function() {
var doubleClicked = false;
$(document).on("contextmenu", function (e) {
if(doubleClicked == false) {
e.preventDefault(); // To prevent the default context menu.
var windowHeight = $(window).height()/2;
var windowWidth = $(window).width()/2;
if(e.clientY > windowHeight && e.clientX <= windowWidth) {
  $("#contextMenuContainer").css("left", e.clientX);
  $("#contextMenuContainer").css("bottom", $(window).height()-e.clientY);
  $("#contextMenuContainer").css("right", "auto");
  $("#contextMenuContainer").css("top", "auto");
} else if(e.clientY > windowHeight && e.clientX > windowWidth) {
  $("#contextMenuContainer").css("right", $(window).width()-e.clientX);
  $("#contextMenuContainer").css("bottom", $(window).height()-e.clientY);
  $("#contextMenuContainer").css("left", "auto");
  $("#contextMenuContainer").css("top", "auto");
} else if(e.clientY <= windowHeight && e.clientX <= windowWidth) {
  $("#contextMenuContainer").css("left", e.clientX);
  $("#contextMenuContainer").css("top", e.clientY);
  $("#contextMenuContainer").css("right", "auto");
  $("#contextMenuContainer").css("bottom", "auto");
} else {
  $("#contextMenuContainer").css("right", $(window).width()-e.clientX);
  $("#contextMenuContainer").css("top", e.clientY);
  $("#contextMenuContainer").css("left", "auto");
  $("#contextMenuContainer").css("bottom", "auto");
}
 $("#contextMenuContainer").fadeIn(500, FocusContextOut());
  doubleClicked = true;
} else {
  e.preventDefault();
  doubleClicked = false;
  $("#contextMenuContainer").fadeOut(500);
}
});
function FocusContextOut() {
 $(document).on("click", function () {
   doubleClicked = false; 
   $("#contextMenuContainer").fadeOut(500);
   $(document).off("click");           
 });
}
});

http://jsfiddle.net/AkshayBandivadekar/zakn7Lwb/14/

score 5 · Accepted Answer

这是一个非常好的教程，介绍如何使用完整的工作代码示例（没有 JQuery 和其他库）构建自定义上下文菜单。

您还可以在 GitHub 上找到他们的演示代码。

他们给出了详细的分步说明，您可以按照这些说明构建自己的右键单击上下文菜单（包括 html、css 和 javascript 代码），并在最后通过提供完整的示例代码对其进行总结。

您可以轻松跟随并根据自己的需要进行调整。并且不需要 JQuery 或其他库。

这是他们的示例菜单代码的样子：

<nav id="context-menu" class="context-menu">
    <ul class="context-menu__items">
      <li class="context-menu__item">
        <a href="#" class="context-menu__link" data-action="View"><i class="fa fa-eye"></i> View Task</a>
      </li>
      <li class="context-menu__item">
        <a href="#" class="context-menu__link" data-action="Edit"><i class="fa fa-edit"></i> Edit Task</a>
      </li>
      <li class="context-menu__item">
        <a href="#" class="context-menu__link" data-action="Delete"><i class="fa fa-times"></i> Delete Task</a>
      </li>
    </ul>
  </nav>

可以在 codepen 上找到一个工作示例（任务列表）。

score 5 · Accepted Answer

试试这个：

var cls = true;
var ops;

window.onload = function() {
    document.querySelector(".container").addEventListener("mouseenter", function() {
        cls = false;
    });
    document.querySelector(".container").addEventListener("mouseleave", function() {
        cls = true;
    });
    ops = document.querySelectorAll(".container td");
    for (let i = 0; i < ops.length; i++) {
        ops[i].addEventListener("click", function() {
            document.querySelector(".position").style.display = "none";
        });
    }

    ops[0].addEventListener("click", function() {
        setTimeout(function() {
            /* YOUR FUNCTION */
            alert("Alert 1!");
        }, 50);
    });

    ops[1].addEventListener("click", function() {
        setTimeout(function() {
            /* YOUR FUNCTION */
            alert("Alert 2!");
        }, 50);
    });

    ops[2].addEventListener("click", function() {
        setTimeout(function() {
            /* YOUR FUNCTION */
            alert("Alert 3!");
        }, 50);
    });

    ops[3].addEventListener("click", function() {
        setTimeout(function() {
            /* YOUR FUNCTION */
            alert("Alert 4!");
        }, 50);
    });

    ops[4].addEventListener("click", function() {
        setTimeout(function() {
            /* YOUR FUNCTION */
            alert("Alert 5!");
        }, 50);
    });
}

document.addEventListener("contextmenu", function() {
    var e = window.event;
    e.preventDefault();
    document.querySelector(".container").style.padding = "0px";

    var x = e.clientX;
    var y = e.clientY;

    var docX = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth || document.body.offsetWidth;
    var docY = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight || document.body.offsetHeight;

    var border = parseInt(getComputedStyle(document.querySelector(".container"), null).getPropertyValue('border-width'));

    var objX = parseInt(getComputedStyle(document.querySelector(".container"), null).getPropertyValue('width')) + 2;
    var objY = parseInt(getComputedStyle(document.querySelector(".container"), null).getPropertyValue('height')) + 2;

    if (x + objX > docX) {
        let diff = (x + objX) - docX;
        x -= diff + border;
    }

    if (y + objY > docY) {
        let diff = (y + objY) - docY;
        y -= diff + border;
    }

    document.querySelector(".position").style.display = "block";

    document.querySelector(".position").style.top = y + "px";
    document.querySelector(".position").style.left = x + "px";
});

window.addEventListener("resize", function() {
    document.querySelector(".position").style.display = "none";
});

document.addEventListener("click", function() {
    if (cls) {
        document.querySelector(".position").style.display = "none";
    }
});

document.addEventListener("wheel", function() {
    if (cls) {
        document.querySelector(".position").style.display = "none";
        static = false;
    }
});

.position {
    position: absolute;
    width: 1px;
    height: 1px;
    z-index: 2;
    display: none;
}

.container {
    width: 220px;
    height: auto;
    border: 1px solid black;
    background: rgb(245, 243, 243);
}

.container p {
    height: 30px;
    font-size: 18px;
    font-family: arial;
    width: 99%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgb(245, 243, 243);
    color: black;
    transition: 0.2s;
}

.container p:hover {
    background: lightblue;
}

td {
    font-family: arial;
    font-size: 20px;
}

td:hover {
    background: lightblue;
    transition: 0.2s;
    cursor: pointer;
}

<div class="position">
    <div class="container" align="center">
        <table style="text-align: left; width: 99%; margin-left: auto; margin-right: auto;" border="0" cellpadding="2" cellspacing="2">
            <tbody>
                <tr>
                    <td style="vertical-align: middle; text-align: center;">Option 1<br>
                    </td>
                </tr>
                <tr>
                    <td style="vertical-align: middle; text-align: center;">Option 2<br>
                    </td>
                </tr>
                <tr>
                    <td style="vertical-align: middle; text-align: center;">Option 3<br>
                    </td>
                </tr>
                <tr>
                    <td style="vertical-align: middle; text-align: center;">Option 4<br>
                    </td>
                </tr>
                <tr>
                    <td style="vertical-align: middle; text-align: center;">Option 5<br>
                    </td>
                </tr>
            </tbody>
        </table>
    </div>
</div>

score 3 · Accepted Answer

您可以使用此代码来完成。访问此处获取带有自动边缘检测的完整教程http://www.voidtricks.com/custom-right-click-context-menu/

$(document).ready(function () {
 $("html").on("contextmenu",function(e){
        //prevent default context menu for right click
        e.preventDefault();

        var menu = $(".menu"); 

        //hide menu if already shown
        menu.hide(); 

        //get x and y values of the click event
        var pageX = e.pageX;
        var pageY = e.pageY;

        //position menu div near mouse cliked area
        menu.css({top: pageY , left: pageX});

        var mwidth = menu.width();
        var mheight = menu.height();
        var screenWidth = $(window).width();
        var screenHeight = $(window).height();

        //if window is scrolled
        var scrTop = $(window).scrollTop();

        //if the menu is close to right edge of the window
        if(pageX+mwidth > screenWidth){
        menu.css({left:pageX-mwidth});
        }

        //if the menu is close to bottom edge of the window
        if(pageY+mheight > screenHeight+scrTop){
        menu.css({top:pageY-mheight});
        }

        //finally show the menu
        menu.show();
 }); 

 $("html").on("click", function(){
 $(".menu").hide();
 });
 });

`

score 1 · Accepted Answer

<script language="javascript" type="text/javascript">
  document.oncontextmenu = RightMouseDown; 
  document.onmousedown = mouseDown; 

  function mouseDown(e) {
    if (e.which==3) {//righClick
      alert("Right-click menu goes here");
    } 
  }

  function RightMouseDown() { 
    return false; 
  }
</script>
</body> 
</html>

score 1 · Accepted Answer

一个简单的方法是使用 onContextMenu 返回一个 JavaScript 函数：

<input type="button" value="Example" onContextMenu="return RightClickFunction();">

<script>
 function RightClickFunction() {
  // Enter your code here;
  return false;
 }
</script>

通过输入return false;，您将取消上下文菜单。

如果您仍想显示上下文菜单，您可以删除该return false;行。

score 1 · Accepted Answer

在 Opera 12.17、firefox 30、Internet Explorer 9 和 chrome 26.0.1410.64 中测试并运行

document.oncontextmenu =function( evt ){
        alert("OK?");
        return false;
        }

score 1 · Accepted Answer

<script>
function fun(){
document.getElementById('menu').style.display="block";
}

</script>
<div id="menu" style="display: none"> menu items</div>

<body oncontextmenu="fun();return false;">

我在这里做什么

创建您自己的自定义 div 菜单并设置 position: absolute 和 display:none 以防万一。
将 oncontextmenu 事件添加到要单击的页面或元素。
使用 return false 取消默认浏览器操作。
用户 js 调用您自己的操作。

score 0 · Accepted Answer

您应该记住，如果您想使用仅限 Firefox 的解决方案，如果您想将它添加到整个文档中，您应该添加contextmenu="mymenu"到<html>标签而不是body标签。
你应该注意这一点。

score 0 · Accepted Answer

<html>
<head>
<style>
.rightclick {
    /* YOUR CONTEXTMENU'S CSS */
    visibility: hidden;
    background-color: white;
    border: 1px solid grey;
    width: 200px;
    height: 300px;
}
</style>
</head>
<body>
  <div class="rightclick" id="ya">
    <p onclick="alert('choc-a-late')">I like chocolate</p><br><p onclick="awe-so-me">I AM AWESOME</p>
  </div>
  <p>Right click to get sweet results!</p>
</body>
<script>
    document.onclick = noClick;
    document.oncontextmenu = rightClick;
    function rightClick(e) {
        e = e || window.event;
        e.preventDefault();
        document.getElementById("ya").style.visibility = "visible";
        console.log("Context Menu v1.3.0 by IamGuest opened.");
   }
function noClick() {
    document.getElementById("ya").style.visibility = "hidden";
    console.log("Context Menu v1.3.0 by IamGuest closed.");
}
</script>
<!-- Coded by IamGuest. Thank you for using this code! -->
</html>

您可以调整和修改此代码以制作更好看、更高效的上下文菜单。至于修改现有的上下文菜单，我不知道该怎么做......查看这个小提琴以获得有组织的观点。另外，请尝试单击我的上下文菜单中的项目。他们应该提醒您一些很棒的消息。如果它们不起作用，请尝试更...复杂的东西。

score 0 · Accepted Answer

我使用类似于以下jsfiddle的东西

function onright(el, cb) {
    //disable right click
    document.body.oncontextmenu = 'return false';
    el.addEventListener('contextmenu', function (e) { e.preventDefault(); return false });
    el.addEventListener('mousedown', function (e) {
        e = e || window.event;
        if (~~(e.button) === 2) {
            if (e.preventDefault) {
                e.preventDefault();
            } else {
                e.returnValue = false;
            }
            return false;
        }
    });

    // then bind Your cb
    el.addEventListener('mousedown', function (e) {
        e = e || window.event;
        ~~(e.button) === 2 && cb.call(el, e);
    });
}

如果您针对较旧的 IE 浏览器，您无论如何都应该使用 ' attachEvent; 来完成它。案子

javascript - 如何在网页中添加自定义右键菜单？

20 回答 20

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