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
根据这里和其他'流程的答案，我已经制作了一个看起来像谷歌Chrome的版本，带有css3过渡。 JS小提琴
让我们开始简单，因为我们有上面的js在这个页面上，我们可以担心css和布局。我们将使用的布局是一个<a>元素和一个<img>元素或一个字体awesome图标(<i class="fa fa-flag"></i>)和一个<span>来显示键盘快捷键。这就是结构:
<a href="#" onclick="doSomething()">
<img src="path/to/image.gif" />
This is a menu option
<span>Ctrl + K</span>
</a>
我们将把这些放在一个div中，并在右键菜单中显示该div。让我们风格他们像在谷歌Chrome浏览器，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，并获得游标的X和Y值。为此，我们将使用e.clientX和e. clienti。我们正在使用客户端，所以菜单div必须被修复。
var i = document.getElementById("menu").style;
if (document.addEventListener) {
document.addEventListener('contextmenu', function(e) {
var posX = e.clientX;
var posY = e.client[...]
And that is it! Just add the css transisions to fade in and out, and done! 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>
其他回答
一些漂亮的CSS和一些没有外部库的非标准html标记的组合可以得到一个不错的结果(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，我是虚构的(你可以使用任何东西)
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只是为这个例子，我个人删除它在窗口上的持久菜单
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);
还要注意，对于从右向左展开的菜单，您可能会将菜单> menu{left:100%;}修改为菜单> menu{right:100%;}。你需要在某个地方加上一个边距之类的东西
纯JS和css解决方案，一个真正的动态右键单击上下文菜单，尽管基于预定义的命名约定的元素id，链接等。 jsfiddle 你可以复制粘贴到单个静态HTML页面的代码:
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>
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/
根据这里和其他'流程的答案，我已经制作了一个看起来像谷歌Chrome的版本，带有css3过渡。 JS小提琴
让我们开始简单，因为我们有上面的js在这个页面上，我们可以担心css和布局。我们将使用的布局是一个<a>元素和一个<img>元素或一个字体awesome图标(<i class="fa fa-flag"></i>)和一个<span>来显示键盘快捷键。这就是结构:
<a href="#" onclick="doSomething()">
<img src="path/to/image.gif" />
This is a menu option
<span>Ctrl + K</span>
</a>
我们将把这些放在一个div中，并在右键菜单中显示该div。让我们风格他们像在谷歌Chrome浏览器，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，并获得游标的X和Y值。为此，我们将使用e.clientX和e. clienti。我们正在使用客户端，所以菜单div必须被修复。
var i = document.getElementById("menu").style;
if (document.addEventListener) {
document.addEventListener('contextmenu', function(e) {
var posX = e.clientX;
var posY = e.client[...]
And that is it! Just add the css transisions to fade in and out, and done! 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>
最简单的跳跃开始函数，在光标位置创建一个上下文菜单，在鼠标离开时破坏自己。
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 }
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