我想添加一个自定义右键菜单到我的web应用程序。这可以在不使用任何预先构建的库的情况下完成吗?如果是这样,如何显示一个简单的自定义右键菜单,不使用第三方JavaScript库?
我的目标是像谷歌Docs做的东西。它允许用户右键单击并显示用户自己的菜单。
注意: 我想学习如何制作我自己的,而不是使用别人已经制作的东西,因为大多数时候,那些第三方库的功能都很臃肿,而我只想要我需要的功能,所以我希望它完全由我手工制作。
我想添加一个自定义右键菜单到我的web应用程序。这可以在不使用任何预先构建的库的情况下完成吗?如果是这样,如何显示一个简单的自定义右键菜单,不使用第三方JavaScript库?
我的目标是像谷歌Docs做的东西。它允许用户右键单击并显示用户自己的菜单。
注意: 我想学习如何制作我自己的,而不是使用别人已经制作的东西,因为大多数时候,那些第三方库的功能都很臃肿,而我只想要我需要的功能,所以我希望它完全由我手工制作。
当前回答
我使用类似于下面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);
});
}
如果你的目标浏览器是旧的IE浏览器,你应该用' attachEvent;情况下
其他回答
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>
我知道这个问题已经有了答案,但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,并在用户单击的地方显示出来。 超文本标记语言
<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例子
你应该记住,如果你想使用Firefox唯一的解决方案,如果你想把它添加到整个文档,你应该把contextmenu="mymenu"添加到<html>标签,而不是body标签。 你应该注意这一点。
<!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>
经过测试,可在Opera 11.6, firefox 9.01, Internet Explorer 9和chrome 17中运行 你可以在javascript右键菜单中查看工作示例
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/