基于jquery ui的alert,confirm方案（支持换肤）

实现功能：

1.修改标题样式。把jquery ui的标题样式放上去。支持换肤。

2.修改按钮样式，换成jqueryui的button按钮样式。

3.将模式化窗口的背景换成了jqueryui的模式化背景。

代码：

//首先要引入jquery，以及ui的包和皮肤的样式如：
<script src="../js/ui/jquery-1.11.0.min.js"></script>
 <script src="../js/ui/jquery-migrate-1.1.0.min.js"></script>
 <script src="../js/ui/minified/jquery.ui.core.min.js"></script>
  <script src="../js/ui/minified/jquery.ui.widget.min.js"></script>
  <script src="../js/ui/minified/jquery.ui.mouse.min.js"></script>
  <script src="../js/ui/minified/jquery.ui.button.min.js"></script>
  <script src="../js/ui/minified/jquery.ui.draggable.min.js"></script>
<link rel="stylesheet" type="text/css" href="../js/ui/themes/humanity/jquery-ui.css"></link>
 
 
 
(function($) {
 
$.alerts = {
 
// these properties can be read/written by accessing $.alerts.propertyname from your scripts at any time
 
verticaloffset: -75, // vertical offset of the dialog from center screen, in pixels
horizontaloffset: 0, // horizontal offset of the dialog from center screen, in pixels/
repositiononresize: true, // re-centers the dialog on window resize
overlayopacity: .01, // transparency level of overlay
overlaycolor: '#fff', // base color of overlay
draggable: true, // make the dialogs draggable (requires ui draggables plugin)
okbutton: ' 确认 ', // text for the ok button
cancelbutton: ' 取消 ', // text for the cancel button
dialogclass: null, // if specified, this class will be applied to all dialogs
 
// public methods
 
alert: function(message, title, callback) {
if( title == null ) title = 'alert';
$.alerts._show(title, message, null, 'alert', function(result) {
if( callback ) callback(result);
});
},
 
confirm: function(message, title, callback) {
if( title == null ) title = 'confirm';
$.alerts._show(title, message, null, 'confirm', function(result) {
if( callback ) callback(result);
});
},
 
prompt: function(message, value, title, callback) {
if( title == null ) title = 'prompt';
$.alerts._show(title, message, value, 'prompt', function(result) {
if( callback ) callback(result);
});
},
 
// private methods
 
_show: function(title, msg, value, type, callback) {
 
$.alerts._hide();
$.alerts._overlay('show');
 
$("body").append(
'<p id="popup_container" style="width:300px;height:150px;">' +
'<h2 id="popup_title" style="margin:0;padding:0;" class="ui-dialog-titlebar ui-widget-header ui-corner-all ui-helper-clearfix"></h2>' +
'<p id="popup_content">' +
'<p id="popup_message"></p>' +
'</p>' +
'</p>');
 
if( $.alerts.dialogclass ) $("#popup_container").addclass($.alerts.dialogclass);
 
// ie6 fix
//var pos = ($.browser.msie && parseint($.browser.version) <= 6 ) ? 'absolute' : 'fixed';
var pos = ('undefined' == typeof (document.body.style.maxheight)) ? 'absolute' : 'fixed';
 
$("#popup_container").css({
position: pos,
zindex: 99999,
padding: 0,
margin: 0
});
 
$("#popup_title").text(title);
$("#popup_content").addclass(type);
$("#popup_message").text(msg);
$("#popup_message").html( $("#popup_message").text().replace(/\n/g, '<br />') );
 
$("#popup_container").css({
minwidth: $("#popup_container").outerwidth(),
maxwidth: $("#popup_container").outerwidth()
});
 
$.alerts._reposition();
$.alerts._maintainposition(true);
 
switch( type ) {
case 'alert':
$("#popup_message").after('<p id="popup_panel"><input type="button" onmouseover="$(this).addclass(\'ui-state-hover\')" onmouseout="$(this).removeclass(\'ui-state-hover\')" class="ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" value="' + $.alerts.okbutton + '" id="popup_ok" /></p>');
$("#popup_ok").click( function() {
$.alerts._hide();
callback(true);
});
$("#popup_ok").focus().keypress( function(e) {
if( e.keycode == 13 || e.keycode == 27 ) $("#popup_ok").trigger('click');
});
break;
case 'confirm':
$("#popup_message").after('<p id="popup_panel"><input type="button" onmouseover="$(this).addclass(\'ui-state-hover\')" onmouseout="$(this).removeclass(\'ui-state-hover\')" class="ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" value="' + $.alerts.okbutton + '" id="popup_ok" /> <input type="button" onmouseover="$(this).addclass(\'ui-state-hover\')" onmouseout="$(this).removeclass(\'ui-state-hover\')" class="ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only"  value="' + $.alerts.cancelbutton + '" id="popup_cancel" /></p>');
$("#popup_ok").click( function() {
$.alerts._hide();
if( callback ) callback(true);
});
$("#popup_cancel").click( function() {
$.alerts._hide();
if( callback ) callback(false);
});
$("#popup_ok").focus();
$("#popup_ok, #popup_cancel").keypress( function(e) {
if( e.keycode == 13 ) $("#popup_ok").trigger('click');
if( e.keycode == 27 ) $("#popup_cancel").trigger('click');
});
break;
case 'prompt':
$("#popup_message").append('<br /><input type="text" size="30" id="popup_prompt" />').after('<p id="popup_panel"><input type="button" onmouseover="$(this).addclass(\'ui-state-hover\')" onmouseout="$(this).removeclass(\'ui-state-hover\')" class="ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" value="' + $.alerts.okbutton + '" id="popup_ok" /> <input type="button" onmouseover="$(this).addclass(\'ui-state-hover\')" onmouseout="$(this).removeclass(\'ui-state-hover\')" class="ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only"  value="' + $.alerts.cancelbutton + '" id="popup_cancel" /></p>');
$("#popup_prompt").width( $("#popup_message").width() );
$("#popup_ok").click( function() {
var val = $("#popup_prompt").val();
$.alerts._hide();
if( callback ) callback( val );
});
$("#popup_cancel").click( function() {
$.alerts._hide();
if( callback ) callback( null );
});
$("#popup_prompt, #popup_ok, #popup_cancel").keypress( function(e) {
if( e.keycode == 13 ) $("#popup_ok").trigger('click');
if( e.keycode == 27 ) $("#popup_cancel").trigger('click');
});
if( value ) $("#popup_prompt").val(value);
$("#popup_prompt").focus().select();
break;
}
 
// make draggable
if( $.alerts.draggable ) {
try {
$("#popup_container").draggable({ handle: $("#popup_title") });
$("#popup_title").css({ cursor: 'move' });
} catch(e) { /* requires jquery ui draggables */ }
}
},
 
_hide: function() {
$("#popup_container").remove();
$.alerts._overlay('hide');
$.alerts._maintainposition(false);
},
 
_overlay: function(status) {
switch( status ) {
case 'show':
$.alerts._overlay('hide');
$("body").append('<p class="ui-widget-overlay" id="popup_overlay"></p>');
break;
case 'hide':
$("#popup_overlay").remove();
break;
}
},
 
_reposition: function() {
var top = (($(window).height() / 2) - ($("#popup_container").outerheight() / 2)) + $.alerts.verticaloffset;
var left = (($(window).width() / 2) - ($("#popup_container").outerwidth() / 2)) + $.alerts.horizontaloffset;
if( top < 0 ) top = 0;
if( left < 0 ) left = 0;
 
// ie6 fix
if ('undefined' == typeof (document.body.style.maxheight)) top = top + $(window).scrolltop();
 
$("#popup_container").css({
top: top + 'px',
left: left + 'px'
});
},
 
_maintainposition: function(status) {
if( $.alerts.repositiononresize ) {
switch(status) {
case true:
$(window).bind('resize', function() {
$.alerts._reposition();
});
break;
case false:
$(window).unbind('resize');
break;
}
}
}
 
}
 
// shortuct functions
jalert = function(message, title, callback) {
$.alerts.alert(message, title, callback);
}
 
jconfirm = function(message, title, callback) {
$.alerts.confirm(message, title, callback);
};
 
jprompt = function(message, value, title, callback) {
$.alerts.prompt(message, value, title, callback);
};
 
})(jquery);
 
 
 
<style>
*{margin:0;padding:0;}
#popup_container {
font-family: arial, sans-serif;
font-size: 12px;
min-width: 300px; /* dialog will be no smaller than this */
max-width: 600px; /* dialog will wrap after this width */
background: #fff;
border: solid 1px #d09042;
color: #000;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
border-radius: 5px;
}
 
 
#popup_content {
background: 16px 16px no-repeat url(images/info.gif);
padding: 1em 1.75em;
margin: 0em;
}
 
#popup_content.alert {
background-image: url(../images/info.png);
}
 
#popup_content.confirm {
background-image: url(../images/important.png);
}
 
#popup_content.prompt {
background-image: url(../images/help.png);
}
 
#popup_message {
padding-left: 48px;
height:30px;
padding-top:10px;
font-size:15px;
}
 
#popup_panel {
text-align: center;
margin: 1em 0em 0em 1em;
}
 
#popup_prompt {
margin: .5em 0em;
}
</style>
 
//使用方法
<script>
jconfirm('您确定吗?', '系统 提示', function(r) {
  jalert('你选择了: ' + r, '友情提示');
});
</script>