怎么用js做出自定义菜单对li标签 右键 删除变颜色 效果

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怎么用js做出自定义菜单对li标签 右键 删除变颜色 效果,第1张

js里面没有直接的右击事件,可采用onmousedown事件进行判断实现。如下:

document.getElementById("test").onmousedown = function(e){

                if(e.button ==2){

                    //alert("你点了右键")

                    //这样设计你的颜色样式...

                }else if(e.button ==0){

                    alert("你点了左键")

                }else if(e.button ==1){

                    alert("你点了滚轮")

                }

            }

2、数据的过滤方法有很多,javaScript 、jQuery里面的filter函数,鉴于本题,最好采用angularJs实现。总体 参考代码如下:

<!DOCTYPE html>

<html>

<head>

    <meta charset="utf-8">

    <script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js">

    </script>

    <script type="text/javascript">

        window.onload = function(){

            //去掉默认的contextmenu事件,否则会和右键事件同时出现。

            document.oncontextmenu = function(e){

                e.preventDefault()

            }

            document.getElementById("test").onmousedown = function(e){

                if(e.button ==2){

                    alert("你点了右键")

                    //这样设计你的颜色样式...

                }else if(e.button ==0){

                    alert("你点了左键")

                }else if(e.button ==1){

                    alert("你点了滚轮")

                }

            }

        }

    </script>

</head>

<body>

<div ng-app="myApp" ng-controller="namesCtrl">

    <p>输入过滤:</p>

    <p><input type="text" ng-model="test"></p>

    <ul>

        <li ng-repeat="x in names | filter:test | orderBy:'pin'">

            {{ (x.name | uppercase) + ', ' + x.pin }}

        </li>

    </ul>

</div>

<script>

    angular.module('myApp', []).controller('namesCtrl', function($scope) {

        $scope.names = [

            {name:'张三',pin:'zhang san'},

            {name:'王斌',pin:'wang bin'},

            {name:'张春桥',pin:'zhang chun qiao'},

            {name:'王滨',pin:'wang bin'}

        ]

    })

</script>

<div style="width: 600pxheight:50pxmargin:autoborder:1px solid pink" id="test">

    <p>朝鲜新建农场</p>

</div>

</body>

</html>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<title>JS实现自定义右键菜单</title>

<meta http-equiv="content-type" content="text/htmlcharset=gbk">

<script src="http://api.51ditu.com/js/ajax.js"></script>

<style type="text/css">

#container {

text-align : center

width : 500px

height : 500px

border : 1px solid blue

margin : 0 auto

}

.skin {

width : 100px

border : 1px solid gray

padding : 2px

visibility : hidden

position : absolute

}

div.menuitems {

margin : 1px 0

}

div.menuitems a {

text-decoration : none

}

div.menuitems:hover {

background-color : #c0c0c0

}

</style>

<script>

window.onload = function() {

var container = document.getElementById('container')

var menu = document.getElementById('menu')

/*显示菜单*/

function showMenu() {

var evt = window.event || arguments[0]

/*获取当前鼠标右键按下后的位置,据此定义菜单显示的位置*/

var rightedge = container.clientWidth-evt.clientX

var bottomedge = container.clientHeight-evt.clientY

/*如果从鼠标位置到容器右边的空间小于菜单的宽度,就定位菜单的左坐标(Left)为当前鼠标位置向左一个菜单宽度*/

if (rightedge <menu.offsetWidth)

menu.style.left = container.scrollLeft + evt.clientX - menu.offsetWidth + "px"

else

/*否则,就定位菜单的左坐标为当前鼠标位置*/

menu.style.left = container.scrollLeft + evt.clientX + "px"

/*如果从鼠标位置到容器下边的空间小于菜单的高度,就定位菜单的上坐标(Top)为当前鼠标位置向上一个菜单高度*/

if (bottomedge <menu.offsetHeight)

menu.style.top = container.scrollTop + evt.clientY - menu.offsetHeight + "px"

else

/*否则,就定位菜单的上坐标为当前鼠标位置*/

menu.style.top = container.scrollTop + evt.clientY + "px"

/*设置菜单可见*/

menu.style.visibility = "visible"

LTEvent.addListener(menu,"contextmenu",LTEvent.cancelBubble)

}

/*隐藏菜单*/

function hideMenu() {

menu.style.visibility = 'hidden'

}

LTEvent.addListener(container,"contextmenu",LTEvent.cancelBubble)

LTEvent.addListener(container,"contextmenu",showMenu)

LTEvent.addListener(document,"click",hideMenu)

}

</script>

</head>

<body>

<div id="menu" class="skin">

<div class="menuitems">

<a href="javascript:history.back()">后退</a>

</div>

<div class="menuitems">

<a href="javascript:history.back()">前进</a>

</div>

<hr>

<div class="menuitems">

<a href="http://api.51ditu.com/" target="_blank">地图api</a>

</div>

<div class="menuitems">

<a href="http://www.51ditu.com/traffic/index.html" target="_blank">实时交通</a>

</div>

<div class="menuitems">

<a href="http://www.51ditu.com" target="_blank">地图搜索</a>

</div>

<div class="menuitems">

<a href="http://nav.51ditu.com" target="_blank">驾驶导航</a>

</div>

<hr>

<div class="menuitems">

<a href="http://uu.51ditu.com" target="_blank">灵图UU</a>

</div>

<div class="menuitems">

<a href="http://lushu.51ditu.com" target="_blank">路书下载</a>

</div>

<hr>

<div class="menuitems">

<a href="http://www.lingtu.com" target="_blank">关于本站</a>

</div>

<div class="menuitems">

<a href="http://emap.51ditu.com/link/link.html" target="_bland">友情链接</a>

</div>

</div>

<div id="container">

<p>右键此区域</p>

</div>

</body>

</html>