许多从事Web开发的会发现有些事，我们需要禁用浏览器本事自带的右键菜单，而实现自定义的右键菜单
下面我们也来实现一个自定义的右键菜单
首先来创建JSP页面
1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 2 <html> 3 <head> 4 <title>右键菜单</title> 5 <script src="js/jquery.min.js"></script> 6 </head> 7 <link rel="stylesheet" type="text/css" href="css/demo.css"> 8 <link rel="stylesheet" type="text/css" href="css/context.standalone.css"> 9 <script src="js/context.js"></script> 10 <script src="js/demo.js"></script> 11 <body> 12 <div style="text-align:center;margin:50px 0; font:normal 14px/24px ‘MicroSoft YaHei‘;"></div> 13 </body> 14 </html>
这里来控制一个文本区域内浏览器自带的右键菜单禁用，使用自定义菜单
1 /**
2 *@ trimmer Visec·Dana
3 *@ time 2014-7-23
4 **/
5 var context = context || (function () {
6 var options = {
7 fadeSpeed: 100,
8 filter: function ($obj) {
9 },
10 above: ‘auto‘,
11 preventDoubleContext: true,
12 compress: false
13 };
14
15 function initialize(opts){
16 options = $.extend({}, options, opts);
17 $(document).on(‘click‘, ‘html‘, function () {
18 $(‘.dropdown-context‘).fadeOut(options.fadeSpeed, function(){
19 $(‘.dropdown-context‘).css({display:‘‘}).find(‘.drop-left‘).removeClass(‘drop-left‘);
20 });
21 });
22 if(options.preventDoubleContext){
23 $(document).on(‘contextmenu‘, ‘.dropdown-context‘, function (e) {
24 e.preventDefault();
25 });
26 }
27 $(document).on(‘mouseenter‘, ‘.dropdown-submenu‘, function(){
28 var $sub = $(this).find(‘.dropdown-context-sub:first‘),
29 subWidth = $sub.width(),
30 subLeft = $sub.offset().left,
31 collision = (subWidth+subLeft) > window.innerWidth;
32 if(collision){
33 $sub.addClass(‘drop-left‘);
34 }
35 });
36
37 }
38
39 function updateOptions(opts){
40 options = $.extend({}, options, opts);
41 }
42
43 function buildMenu(data, id, subMenu){
44 var subClass = (subMenu) ? ‘ dropdown-context-sub‘ : ‘‘,
45 compressed = options.compress ? ‘ compressed-context‘ : ‘‘,
46 $menu = $(‘<ul class="dropdown-menu dropdown-context‘ + subClass + compressed+‘" id="dropdown-‘ + id + ‘"></ul>‘);
47 var i = 0, linkTarget = ‘‘;
48 for(i; i<data.length; i++){
49 if (typeof data[i].divider !== ‘undefined‘){
50 $menu.append(‘<li class="divider"></li>‘);
51 } else if (typeof data[i].header !== ‘undefined‘){
52 $menu.append(‘<li class="nav-header">‘ + data[i].header + ‘</li>‘);
53 } else {
54 if (typeof data[i].href == ‘undefined‘){
55 data[i].href = ‘#‘;
56 }
57 if (typeof data[i].target !== ‘undefined‘){
58 linkTarget = ‘ target="‘+data[i].target+‘"‘;
59 }
60 if (typeof data[i].subMenu !== ‘undefined‘){
61 $sub = (‘<li class="dropdown-submenu"><a tabindex="-1" href="‘ + data[i].href + ‘">‘ + data[i].text + ‘</a></li>‘);
62 }else{
63 $sub = $(‘<li><a tabindex="-1" href="‘ + data[i].href + ‘"‘+linkTarget+‘>‘ + data[i].text + ‘</a></li>‘);
64 }
65 if (typeof data[i].action !== ‘undefined‘){
66 var actiond = new Date(),
67 actionID = ‘event-‘ + actiond.getTime() * Math.floor(Math.random()*100000),
68 eventAction = data[i].action;
69 $sub.find(‘a‘).attr(‘id‘, actionID);
70 $(‘#‘ + actionID).addClass(‘context-event‘);
71 $(document).on(‘click‘, ‘#‘ + actionID, eventAction);
72 }
73 $menu.append($sub);
74 if (typeof data[i].subMenu != ‘undefined‘){
75 var subMenuData = buildMenu(data[i].subMenu, id, true);
76 $menu.find(‘li:last‘).append(subMenuData);
77 }
78 }
79 if (typeof options.filter == ‘function‘) {
80 options.filter($menu.find(‘li:last‘));
81 }
82 }
83 return $menu;
84 }
85 function addContext(selector, data){
86 var d = new Date(),
87 id = d.getTime(),
88 $menu = buildMenu(data, id);
89 $(‘body‘).append($menu);
90 $(document).on(‘contextmenu‘, selector, function (e){
91 e.preventDefault();
92 e.stopPropagation();
93 $(‘.dropdown-context:not(.dropdown-context-sub)‘).hide();
94 $dd = $(‘#dropdown-‘ + id);
95 if (typeof options.above == ‘boolean‘ && options.above) {
96 $dd.addClass(‘dropdown-context-up‘).css({
97 top: e.pageY - 20 - $(‘#dropdown-‘ + id).height(),
98 left: e.pageX - 13
99 }).fadeIn(options.fadeSpeed);
100 } else if (typeof options.above == ‘string‘ && options.above == ‘auto‘){
101 $dd.removeClass(‘dropdown-context-up‘);
102 var autoH = $dd.height() + 12;
103 if ((e.pageY + autoH) > $(‘html‘).height()){
104 $dd.addClass(‘dropdown-context-up‘).css({
105 top: e.pageY - 20 - autoH,
106 left: e.pageX - 13
107 }).fadeIn(options.fadeSpeed);
108 } else {
109 $dd.css({
110 top: e.pageY + 10,
111 left: e.pageX - 13
112 }).fadeIn(options.fadeSpeed);
113 }
114 }
115 });
116 }
117 function destroyContext(selector) {
118 $(document).off(‘contextmenu‘, selector).off(‘click‘, ‘.context-event‘);
119 }
120 return {
121 init: initialize,
122 settings: updateOptions,
123 attach: addContext,
124 destroy: destroyContext
125 };
126 })();
context.js主要来编写自定义右键菜单对应的功能连接
下面的demo.js则是菜单的编辑与显示的样式
1 /**
2 * @trimmer Visec·Dana
3 * @time 2014-7-23
4 */
5 $(document).ready(function(){
6 /**
7 * 右键菜单信息
8 * text 文本内容
9 * href 链接地址?
10 */
11 context.settings({compress: true}); //字体属性大小
12 context.attach(‘html‘,[
13 {header: ‘菜单栏‘},
14 {divider: true}, //控制实线
15 {text: ‘后退‘, href: ‘#‘},
16 {text: ‘前进‘, href: ‘#‘},
17 {divider: true},
18 {text: ‘菜单信息1‘, href: ‘#‘},
19 {text: ‘菜单信息1‘, href: ‘#‘},
20 {text: ‘菜单信息1‘, href: ‘#‘},
21 {text: ‘菜单信息1‘, href: ‘#‘},
22 {divider: true},
23 {text: ‘菜单信息1‘, href: ‘#‘},
24 {divider: true},
25 {text: ‘禁用自定义菜单‘, action: function(e){
26 e.preventDefault();
27 context.destroy(‘html‘);
28 alert(‘确定要禁用吗？‘);
29 }},
30 ]);
31 context.init({preventDoubleContext: false}); //单击左键关闭右键菜单
32 });
这里是我编写的一个Demo的文件结构图，还有一些CSS文件信息代码，我就不贴了，文件已共享！
Demo下载：http://yunpan.cn/Q7BVXNGXdSvYB 访问密码 04d9
时间： 2024-10-15 08:45:53