为jquery.ui.dialog 增加“在当前鼠标位置打开”的功能

$("#dialog").dialog({ 
bgiframe: true, 
autoOpen: false, 
position: [PosX, PosY], //alert 出来为：" , "(不含双引号)，或者报错，不知什么原因。 
height: 300, 
modal: true, 
buttons: { 
'创建新账号': function() { 
var bValid = true; 
allFields.removeClass('ui-state-error'); bValid = bValid && checkLength(name, "username", 3, 16); 
bValid = bValid && checkLength(email, "email", 6, 80); 
bValid = bValid && checkLength(password, "password", 5, 16); 
bValid = bValid && checkRegexp(name, /^[a-z]([0-9a-z_])+$/i, "Username may consist of a-z, 0-9, underscores, begin with a letter."); 
// From jquery.validate.js (by joern), contributed by Scott Gonzalez: http://projects.scottsplayground.com/email_address_validation/ 
bValid = bValid && checkRegexp(email, /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i, "eg. [e-mail]"); 
bValid = bValid && checkRegexp(password, /^([0-9a-zA-Z])+$/, "Password field only allow : a-z 0-9"); 
if (bValid) { 
$('#users tbody').append('<tr>' + 
'<td>' + name.val() + '</td>' + 
'<td>' + email.val() + '</td>' + 
'<td>' + password.val() + '</td>' + 
'</tr>'); 
$(this).dialog('close'); 
}; 
}, 
取消: function() { 
$(this).dialog('close'); 
} 
}, 
close: function() { 
allFields.val('').removeClass('ui-state-error'); 
} 
});

后来参考"wind"的为jquery.ui.dialog 增加“自动记住关闭时的位置”的功能。,在他的建议下，完全照葫芦画瓢写了个jquery.ui.dialog的重载方法,实现在鼠标当前位置打开dialog

代码如下

/////////////////////////////////// 
//指定 jquery.ui.dialog打开时的位置 
/////////////////////////////////// 
(function($) { 
var originOpen = $.ui.dialog.prototype.open 
$.ui.dialog.prototype.open = function() { 
//var event= window.event || arguments.callee.caller.arguments[0]; 
//var event = event || window.event; 
var event = getEvent(); 
//alert(event) // ie 和 ff下，都显示 "[object]" 
var PosX = 0; 
var PosY = 0; 
if (event.pageX || event.pageY) { 
PosX = event.pageX; 
PosY = event.pageY; 
} 
else { 
PosX = event.clientX + document.body.scrollLeft - document.body.clientLeft; 
PosY = event.clientY + document.body.scrollTop - document.body.clientTop; 
}; 
this.options.position = [PosX, PosY]; 
//alert(this.options.position); 
originOpen.apply(this, arguments); 
}; function getEvent() { //同时兼容ie和ff的写法 
if (document.all) return window.event; 
func = getEvent.caller; 
while (func != null) { 
var arg0 = func.arguments[0]; 
if (arg0) { 
if ((arg0.constructor == Event || arg0.constructor == MouseEvent) 
|| (typeof (arg0) == "object" && arg0.preventDefault && arg0.stopPropagation)) { 
return arg0; 
} 
} 
func = func.caller; 
} 
return null; 
} 
})(jQuery);

再次感谢"wind"。感谢 jww测试。（已兼容ie7,8,firefox3.5,chrome4）