为我的 web 应用程序制作自定义右击上下文菜单

小开

正在覆盖浏览器的上下文菜单。无法在任何主要浏览器中增加本机上下文菜单。

由于插件创建自己的菜单，唯一真正被抽象的部分是浏览器的上下文菜单事件。该插件根据您的配置创建一个 html 菜单，然后将该内容放置在您单击的位置。

是的，这是创建自定义上下文菜单的唯一方法。显然，不同的插件所做的事情略有不同，但它们都会覆盖浏览器的事件，并将自己的基于 html 的菜单放在正确的位置。

小开

正如阿德里安所说，这些插件将以同样的方式工作。你需要三个基本部分:

1: 'contextmenu'事件的事件处理程序:

$(document).bind("contextmenu", function(event) {
event.preventDefault();
$("<div class='custom-menu'>Custom menu</div>")
.appendTo("body")
.css({top: event.pageY + "px", left: event.pageX + "px"});
});

在这里，您可以将事件处理程序绑定到要显示菜单的任何选择器。我已经选好了整个文件。

2: 'click'事件的事件处理程序(关闭自定义菜单) :

$(document).bind("click", function(event) {
$("div.custom-menu").hide();
});

3: CSS 控制菜单的位置:

.custom-menu {
z-index:1000;
position: absolute;
background-color:#C0C0C0;
border: 1px solid black;
padding: 2px;
}

CSS 的重要之处在于包含 z-index和 position: absolute

用一个漂亮的 jQuery 插件包装所有这些不会太困难。

您可以在这里看到一个简单的演示: http://jsfiddle.net/andrewwhitaker/fELma/

小开

你可以看看这个教程: < a href = “ http://www.youtube.com/watch? v = iDyeffKWCzhg”rel = “ nofollow”> http://www.youtube.com/watch?v=idyefkwczhg 首先确保上下文菜单是隐藏的，并且具有绝对位置确保不会有多个上下文菜单和无用的创建上下文菜单。该页面的链接放在 YouTube 视频的描述中。

$(document).bind("contextmenu", function(event){
$("#contextmenu").css({"top": event.pageY +  "px", "left": event.pageX +  "px"}).show();
});
$(document).bind("click", function(){
$("#contextmenu").hide();
});

小开

我知道这个问题很老了，但是刚刚想出了同样的问题，并且自己解决了，所以我要回答这个问题，以防有人像我一样通过谷歌找到这个问题。我的解决方案基于@Andrew 的方案，但后来基本上修改了所有内容。

编辑 : 看到这个最近有多流行，我决定也更新样式，使它看起来更像2014，而不是像 Windows 95。我修正了 Quantico 和 Trengot 发现的漏洞，现在这是一个更可靠的答案。

编辑2 : 我使用 StackSnipppet 设置它，因为它们是一个非常酷的新特性。我把 好的 jsfiddle留在这里作为参考(点击第四个面板查看它们的工作情况)。

新的堆栈片段:

// JAVASCRIPT (jQuery)


// Trigger action when the contexmenu is about to be shown
$(document).bind("contextmenu", function (event) {
    

// Avoid the real one
event.preventDefault();
    

// Show contextmenu
$(".custom-menu").finish().toggle(100).
    

// In the right position (the mouse)
css({
top: event.pageY + "px",
left: event.pageX + "px"
});
});




// If the document is clicked somewhere
$(document).bind("mousedown", function (e) {
    

// If the clicked element is not the menu
if (!$(e.target).parents(".custom-menu").length > 0) {
        

// Hide it
$(".custom-menu").hide(100);
}
});




// If the menu element is clicked
$(".custom-menu li").click(function(){
    

// This is the triggered action name
switch($(this).attr("data-action")) {
        

// A case for each action. Your actions here
case "first": alert("first"); break;
case "second": alert("second"); break;
case "third": alert("third"); break;
}
  

// Hide it AFTER the action was triggered
$(".custom-menu").hide(100);
});

/* CSS3 */


/* The whole thing */
.custom-menu {
display: none;
z-index: 1000;
position: absolute;
overflow: hidden;
border: 1px solid #CCC;
white-space: nowrap;
font-family: sans-serif;
background: #FFF;
color: #333;
border-radius: 5px;
padding: 0;
}


/* Each of the items in the list */
.custom-menu li {
padding: 8px 12px;
cursor: pointer;
list-style-type: none;
transition: all .3s ease;
user-select: none;
}


.custom-menu li:hover {
background-color: #DEF;
}

<!-- HTML -->
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.js"></script>


<ul class='custom-menu'>
<li data-action="first">First thing</li>
<li data-action="second">Second thing</li>
<li data-action="third">Third thing</li>
</ul>


<!-- Not needed, only for making it clickable on StackOverflow -->
Right click me

注意: 您可能会看到一些小错误(下拉远离光标等) ，请确保它在 Jsfiddle的工作，因为这是更类似于您的网页比 StackSnipppet 可能是。

小开

<!DOCTYPE html>
<html>
<head>
<title>Right Click</title>


<link href="https://swisnl.github.io/jQuery-contextMenu/dist/jquery.contextMenu.css" rel="stylesheet" type="text/css" />


<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://swisnl.github.io/jQuery-contextMenu/dist/jquery.contextMenu.js" type="text/javascript"></script>


<script src="https://swisnl.github.io/jQuery-contextMenu/dist/jquery.ui.position.min.js" type="text/javascript"></script>


</head>
<body>
<span class="context-menu-one" style="border:solid 1px black; padding:5px;">Right Click Me</span>
<script type="text/javascript">
        

$(function() {
$.contextMenu({
selector: '.context-menu-one',
callback: function(key, options) {
var m = "clicked: " + key;
window.console && console.log(m) || alert(m);
},
items: {
"edit": {name: "Edit", icon: "edit"},
"cut": {name: "Cut", icon: "cut"},
copy: {name: "Copy", icon: "copy"},
"paste": {name: "Paste", icon: "paste"},
"delete": {name: "Delete", icon: "delete"},
"sep1": "---------",
"quit": {name: "Quit", icon: function(){
return 'context-menu-icon context-menu-icon-quit';
}}
}
});


$('.context-menu-one').on('click', function(e){
console.log('clicked', this);
})
});
</script>
</body>
</html>

小开

下面是一个在 javascript 中右击上下文菜单的例子: 右击上下文菜单

使用原始的 javasScript 代码实现上下文菜单功能。请您检查一下，希望对您有所帮助。

直播密码:

(function() {
  

"use strict";




/*********************************************** Context Menu Function Only ********************************/
function clickInsideElement( e, className ) {
var el = e.srcElement || e.target;
if ( el.classList.contains(className) ) {
return el;
} else {
while ( el = el.parentNode ) {
if ( el.classList && el.classList.contains(className) ) {
return el;
}
}
}
return false;
}


function getPosition(e) {
var posx = 0, posy = 0;
if (!e) var e = window.event;
if (e.pageX || e.pageY) {
posx = e.pageX;
posy = e.pageY;
} else if (e.clientX || e.clientY) {
posx = e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
posy = e.clientY + document.body.scrollTop + document.documentElement.scrollTop;
}
return {
x: posx,
y: posy
}
}


// Your Menu Class Name
var taskItemClassName = "thumb";
var contextMenuClassName = "context-menu",contextMenuItemClassName = "context-menu__item",contextMenuLinkClassName = "context-menu__link", contextMenuActive = "context-menu--active";
var taskItemInContext, clickCoords, clickCoordsX, clickCoordsY, menu = document.querySelector("#context-menu"), menuItems = menu.querySelectorAll(".context-menu__item");
var menuState = 0, menuWidth, menuHeight, menuPosition, menuPositionX, menuPositionY, windowWidth, windowHeight;


function initMenuFunction() {
contextListener();
clickListener();
keyupListener();
resizeListener();
}


/**
* Listens for contextmenu events.
*/
function contextListener() {
document.addEventListener( "contextmenu", function(e) {
taskItemInContext = clickInsideElement( e, taskItemClassName );


if ( taskItemInContext ) {
e.preventDefault();
toggleMenuOn();
positionMenu(e);
} else {
taskItemInContext = null;
toggleMenuOff();
}
});
}


/**
* Listens for click events.
*/
function clickListener() {
document.addEventListener( "click", function(e) {
var clickeElIsLink = clickInsideElement( e, contextMenuLinkClassName );


if ( clickeElIsLink ) {
e.preventDefault();
menuItemListener( clickeElIsLink );
} else {
var button = e.which || e.button;
if ( button === 1 ) {
toggleMenuOff();
}
}
});
}


/**
* Listens for keyup events.
*/
function keyupListener() {
window.onkeyup = function(e) {
if ( e.keyCode === 27 ) {
toggleMenuOff();
}
}
}


/**
* Window resize event listener
*/
function resizeListener() {
window.onresize = function(e) {
toggleMenuOff();
};
}


/**
* Turns the custom context menu on.
*/
function toggleMenuOn() {
if ( menuState !== 1 ) {
menuState = 1;
menu.classList.add( contextMenuActive );
}
}


/**
* Turns the custom context menu off.
*/
function toggleMenuOff() {
if ( menuState !== 0 ) {
menuState = 0;
menu.classList.remove( contextMenuActive );
}
}


function positionMenu(e) {
clickCoords = getPosition(e);
clickCoordsX = clickCoords.x;
clickCoordsY = clickCoords.y;
menuWidth = menu.offsetWidth + 4;
menuHeight = menu.offsetHeight + 4;


windowWidth = window.innerWidth;
windowHeight = window.innerHeight;


if ( (windowWidth - clickCoordsX) < menuWidth ) {
menu.style.left = (windowWidth - menuWidth)-0 + "px";
} else {
menu.style.left = clickCoordsX-0 + "px";
}


// menu.style.top = clickCoordsY + "px";


if ( Math.abs(windowHeight - clickCoordsY) < menuHeight ) {
menu.style.top = (windowHeight - menuHeight)-0 + "px";
} else {
menu.style.top = clickCoordsY-0 + "px";
}
}




function menuItemListener( link ) {
var menuSelectedPhotoId = taskItemInContext.getAttribute("data-id");
console.log('Your Selected Photo: '+menuSelectedPhotoId)
var moveToAlbumSelectedId = link.getAttribute("data-action");
if(moveToAlbumSelectedId == 'remove'){
console.log('You Clicked the remove button')
}else if(moveToAlbumSelectedId && moveToAlbumSelectedId.length > 7){
console.log('Clicked Album Name: '+moveToAlbumSelectedId);
}
toggleMenuOff();
}
initMenuFunction();


})();

/* For Body Padding and content */
body { padding-top: 70px; }
li a { text-decoration: none !important; }


/* Thumbnail only */
.thumb {
margin-bottom: 30px;
}
.thumb:hover a, .thumb:active a, .thumb:focus a {
border: 1px solid purple;
}


/************** For Context menu ***********/
/* context menu */
.context-menu {  display: none;  position: absolute;  z-index: 9999;  padding: 12px 0;  width: 200px;  background-color: #fff;  border: solid 1px #dfdfdf;  box-shadow: 1px 1px 2px #cfcfcf;  }
.context-menu--active {  display: block;  }


.context-menu__items { list-style: none;  margin: 0;  padding: 0;  }
.context-menu__item { display: block;  margin-bottom: 4px;  }
.context-menu__item:last-child {  margin-bottom: 0;  }
.context-menu__link {  display: block;  padding: 4px 12px;  color: #0066aa;  text-decoration: none;  }
.context-menu__link:hover {  color: #fff;  background-color: #0066aa;  }
.context-menu__items ul {  position: absolute;  white-space: nowrap;  z-index: 1;  left: -99999em;}
.context-menu__items > li:hover > ul {  left: auto;  padding-top: 5px  ;  min-width: 100%;  }
.context-menu__items > li li ul {  border-left:1px solid #fff;}
.context-menu__items > li li:hover > ul {  left: 100%;  top: -1px;  }
.context-menu__item ul { background-color: #ffffff; padding: 7px 11px;  list-style-type: none;  text-decoration: none; margin-left: 40px; }
.page-media .context-menu__items ul li { display: block; }
/************** For Context menu ***********/

<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"/>
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<body>






<!-- Page Content -->
<div class="container">


<div class="row">


<div class="col-lg-12">
<h1 class="page-header">Thumbnail Gallery <small>(Right click to see the context menu)</small></h1>
</div>


<div class="col-lg-3 col-md-4 col-xs-6 thumb">
<a class="thumbnail" href="#">
<img class="img-responsive" src="http://placehold.it/400x300" alt="">
</a>
</div>
<div class="col-lg-3 col-md-4 col-xs-6 thumb">
<a class="thumbnail" href="#">
<img class="img-responsive" src="http://placehold.it/400x300" alt="">
</a>
</div>
<div class="col-lg-3 col-md-4 col-xs-6 thumb">
<a class="thumbnail" href="#">
<img class="img-responsive" src="http://placehold.it/400x300" alt="">
</a>
</div>
<div class="col-lg-3 col-md-4 col-xs-6 thumb">
<a class="thumbnail" href="#">
<img class="img-responsive" src="http://placehold.it/400x300" alt="">
</a>
</div>
<div class="col-lg-3 col-md-4 col-xs-6 thumb">
<a class="thumbnail" href="#">
<img class="img-responsive" src="http://placehold.it/400x300" alt="">
</a>
</div>
<div class="col-lg-3 col-md-4 col-xs-6 thumb">
<a class="thumbnail" href="#">
<img class="img-responsive" src="http://placehold.it/400x300" alt="">
</a>
</div>
<div class="col-lg-3 col-md-4 col-xs-6 thumb">
<a class="thumbnail" href="#">
<img class="img-responsive" src="http://placehold.it/400x300" alt="">
</a>
</div>
<div class="col-lg-3 col-md-4 col-xs-6 thumb">
<a class="thumbnail" href="#">
<img class="img-responsive" src="http://placehold.it/400x300" alt="">
</a>
</div>


</div>


<hr>




</div>
<!-- /.container -->




<!-- / The Context Menu -->
<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="Delete This Photo"><i class="fa fa-empire"></i> Delete This Photo</a>
</li>
<li class="context-menu__item">
<a href="#" class="context-menu__link" data-action="Photo Option 2"><i class="fa fa-envira"></i> Photo Option 2</a>
</li>
<li class="context-menu__item">
<a href="#" class="context-menu__link" data-action="Photo Option 3"><i class="fa fa-first-order"></i> Photo Option 3</a>
</li>
<li class="context-menu__item">
<a href="#" class="context-menu__link" data-action="Photo Option 4"><i class="fa fa-gitlab"></i> Photo Option 4</a>
</li>
<li class="context-menu__item">
<a href="#" class="context-menu__link" data-action="Photo Option 5"><i class="fa fa-ioxhost"></i> Photo Option 5</a>
</li>
<li class="context-menu__item">
<a href="#" class="context-menu__link"><i class="fa fa-arrow-right"></i> Add Photo to</a>
<ul>
<li><a href="#!" class="context-menu__link" data-action="album-one"><i class="fa fa-camera-retro"></i> Album One</a></li>
<li><a href="#!" class="context-menu__link" data-action="album-two"><i class="fa fa-camera-retro"></i> Album Two</a></li>
<li><a href="#!" class="context-menu__link" data-action="album-three"><i class="fa fa-camera-retro"></i> Album Three</a></li>
<li><a href="#!" class="context-menu__link" data-action="album-four"><i class="fa fa-camera-retro"></i> Album Four</a></li>
</ul>
</li>
</ul>
</nav>


<!-- End # Context Menu -->




</body>

小开

我知道这也是相当古老的。我最近需要创建一个上下文菜单，我注入到其他网站，有不同的属性基于元素点击。

这是相当粗糙的，可能有更好的方法来实现这一点。它使用 jQuery Context 菜单库 < a href = “ https://swisnl.github.io/jQuery-contextMenu//”rel = “ nofollow norefrer”> Location Here

我喜欢创造它，虽然你们可能有一些使用它。

这里是小提琴。我希望它能帮助有希望的人在那里。

$(function() {
function createSomeMenu() {
var all_array = '{';
var x = event.clientX,
y = event.clientY,
elementMouseIsOver = document.elementFromPoint(x, y);
if (elementMouseIsOver.closest('a')) {
all_array += '"Link-Fold": {"name": "Link", "icon": "fa-external-link", "items": {"fold2-key1": {"name": "Open Site in New Tab"}, "fold2-key2": {"name": "Open Site in Split Tab"}, "fold2-key3": {"name": "Copy URL"}}},';
}
if (elementMouseIsOver.closest('img')) {
all_array += '"Image-Fold": {"name": "Image","icon": "fa-picture-o","items": {"fold1-key1": {"name":"Download Image"},"fold1-key2": {"name": "Copy Image Location"},"fold1-key3": {"name": "Go To Image"}}},';
}
all_array += '"copy": {"name": "Copy","icon": "copy"},"paste": {"name": "Paste","icon": "paste"},"edit": {"name": "Edit HTML","icon": "fa-code"}}';
return JSON.parse(all_array);
}


// setup context menu
$.contextMenu({
selector: 'body',
build: function($trigger, e) {
return {
callback: function(key, options) {
var m = "clicked: " + key;
console.log(m);
},
items: createSomeMenu()
};
}
});
});

小开

我有一个使用 Bootstrap 的简单实现，如下所示。

<select class="custom-select" id="list" multiple></select>


<div class="dropdown-menu" id="menu-right-click" style=>
<h6 class="dropdown-header">Actions</h6>
<a class="dropdown-item" href="" onclick="option1();">Option 1</a>
<a class="dropdown-item" href="" onclick="option2();">Option 2</a>
</div>


<script>
$("#menu-right-click").hide();


$(document).on("contextmenu", "#list", function (e) {
$("#menu-right-click")
.css({
position: 'absolute',
left: e.pageX,
top: e.pageY,
display: 'block'
})
return false;
});


function option1() {
// something you want...
$("#menu-right-click").hide();
}


function option2() {
// something else
$("#menu-right-click").hide();
}
</script>

小开

很简单

当右键单击文档中的任何位置时显示上下文菜单
单击上下文菜单时避免上下文菜单隐藏
按鼠标左键时关闭上下文菜单

注: 不要使用显示: 不要使用不透明来隐藏和显示

var menu= document.querySelector('.context_menu');
document.addEventListener("contextmenu", function(e) {
e.preventDefault();
menu.style.position = 'absolute';
menu.style.left = e.pageX + 'px';
menu.style.top = e.pageY + 'px';
menu.style.opacity = 1;
});
       

document.addEventListener("click", function(e){
if(e.target.closest('.context_menu'))
return;
menu.style.opacity = 0;
});

.context_menu{


width:70px;
background:lightgrey;
padding:5px;
opacity :0;
}
.context_menu div{
margin:5px;
background:grey;


}
.context_menu div:hover{
margin:5px;
background:red;
cursor:pointer;


}

<div class="context_menu">
<div>menu 1</div>
<div>menu 2</div>
</div>

额外的 CSS

var menu= document.querySelector('.context_menu');
document.addEventListener("contextmenu", function(e) {
e.preventDefault();
menu.style.position = 'absolute';
menu.style.left = e.pageX + 'px';
menu.style.top = e.pageY + 'px';
menu.style.opacity = 1;
});
       

document.addEventListener("click", function(e){
if(e.target.closest('.context_menu'))
return;
menu.style.opacity = 0;
});

.context_menu{


width:120px;
background:white;
border:1px solid lightgrey;


opacity :0;
}
.context_menu div{
padding:5px;
padding-left:15px;
margin:5px 2px;
border-bottom:1px solid lightgrey;
}
.context_menu div:last-child {
border:none;
}
.context_menu div:hover{


background:lightgrey;
cursor:pointer;


}

<div class="context_menu">
<div>menu 1</div>
<div>menu 2</div>
<div>menu 3</div>
<div>menu 4</div>
</div>