jquery-smartMenu.js
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/*
* smartMenu.js 智能上下文菜单插件
* http://www.zhangxinxu.com/
*
* Copyright 2011, zhangxinxu
*
* 2011-05-26 v1.0 编写
* 2011-06-03 v1.1 修复func中this失准问题
* 2011-10-10 v1.2 修复脚本放在<head>标签中层无法隐藏的问题
* 2011-10-30 v1.3 修复IE6~7下二级菜单移到第二项隐藏的问题
*/
(function($) {
var D = $(document).data("func", {});
$.smartMenu = $.noop;
$.fn.smartMenu = function(data, options) {
var B = $("body"), defaults = {
name: "",
offsetX: 2,
offsetY: 2,
textLimit: 6,
beforeShow: $.noop,
afterShow: $.noop
};
var params = $.extend(defaults, options || {});
var htmlCreateMenu = function(datum) {
var dataMenu = datum || data, nameMenu = datum? Math.random().toString(): params.name, htmlMenu = "", htmlCorner = "", clKey = "smart_menu_";
if ($.isArray(dataMenu) && dataMenu.length) {
htmlMenu = '<div id="smartMenu_'+ nameMenu +'" class="'+ clKey +'box">' +
'<div class="'+ clKey +'body">' +
'<ul class="'+ clKey +'ul">';
$.each(dataMenu, function(i, arr) {
if (i) {
htmlMenu = htmlMenu + '<li class="'+ clKey +'li_separate"> </li>';
}
if ($.isArray(arr)) {
$.each(arr, function(j, obj) {
var text = obj.text, htmlMenuLi = "", strTitle = "", rand = Math.random().toString().replace(".", "");
if (text) {
if (text.length > params.textLimit) {
text = text.slice(0, params.textLimit) + "…";
strTitle = ' title="'+ obj.text +'"';
}
if ($.isArray(obj.data) && obj.data.length) {
htmlMenuLi = '<li class="'+ clKey +'li" data-hover="true">' + htmlCreateMenu(obj.data) +
'<a href="javascript:" class="'+ clKey +'a"'+ strTitle +' data-key="'+ rand +'"><i class="'+ clKey +'triangle"></i>'+ text +'</a>' +
'</li>';
} else {
htmlMenuLi = '<li class="'+ clKey +'li">' +
'<a href="javascript:" class="'+ clKey +'a"'+ strTitle +' data-key="'+ rand +'">'+ text +'</a>' +
'</li>';
}
htmlMenu += htmlMenuLi;
var objFunc = D.data("func");
objFunc[rand] = obj.func;
D.data("func", objFunc);
}
});
}
});
htmlMenu = htmlMenu + '</ul>' +
'</div>' +
'</div>';
}
return htmlMenu;
}, funSmartMenu = function() {
var idKey = "#smartMenu_", clKey = "smart_menu_", jqueryMenu = $(idKey + params.name);
if (!jqueryMenu.size()) {
$("body").append(htmlCreateMenu());
//事件
$(idKey + params.name +" a").bind("click", function() {
var key = $(this).attr("data-key"),
callback = D.data("func")[key];
if ($.isFunction(callback)) {
callback.call(D.data("trigger"));
}
$.smartMenu.hide();
return false;
});
$(idKey + params.name +" li").each(function() {
var isHover = $(this).attr("data-hover"), clHover = clKey + "li_hover";
$(this).hover(function() {
var jqueryHover = $(this).siblings("." + clHover);
jqueryHover.removeClass(clHover).children("."+ clKey +"box").hide();
jqueryHover.children("."+ clKey +"a").removeClass(clKey +"a_hover");
if (isHover) {
$(this).addClass(clHover).children("."+ clKey +"box").show();
$(this).children("."+ clKey +"a").addClass(clKey +"a_hover");
}
});
});
return $(idKey + params.name);
}
return jqueryMenu;
};
$(this).each(function() {
this.oncontextmenu = function(e) {
//回调
if ($.isFunction(params.beforeShow)) {
params.beforeShow.call(this);
}
e = e || window.event;
//阻止冒泡
e.cancelBubble = true;
if (e.stopPropagation) {
e.stopPropagation();
}
//隐藏当前上下文菜单，确保页面上一次只有一个上下文菜单
$.smartMenu.hide();
var st = D.scrollTop();
var jqueryMenu = funSmartMenu();
if (jqueryMenu) {
jqueryMenu.css({
display: "block",
left: e.clientX + params.offsetX,
top: e.clientY + st + params.offsetY
});
D.data("target", jqueryMenu);
D.data("trigger", this);
//回调
if ($.isFunction(params.afterShow)) {
params.afterShow.call(this);
}
return false;
}
};
});
if (!B.data("bind")) {
B.bind("click", $.smartMenu.hide).data("bind", true);
}
};
$.extend($.smartMenu, {
hide: function() {
var target = D.data("target");
if (target && target.css("display") === "block") {
target.hide();
}
},
remove: function() {
var target = D.data("target");
if (target) {
target.remove();
}
}
});
})(jQuery);