jQuery UI 实例 – 旋转器（Spinner）
通过向上/向下按钮和箭头键处理，为输入数值增强文本输入功能。
如需了解更多有关 spinner 部件的细节，请查看 API 文档 旋转器部件（Spinner Widget）。
默认功能
默认的旋转器。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 旋转器（Spinner） - 默认功能</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://jqueryui.com/resources/demos/external/jquery.mousewheel.js"></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
<script>
$(function() {
var spinner = $( "#spinner" ).spinner();
$( "#disable" ).click(function() {
if ( spinner.spinner( "option", "disabled" ) ) {
spinner.spinner( "enable" );
} else {
spinner.spinner( "disable" );
}
});
$( "#destroy" ).click(function() {
if ( spinner.data( "ui-spinner" ) ) {
spinner.spinner( "destroy" );
} else {
spinner.spinner();
}
});
$( "#getvalue" ).click(function() {
alert( spinner.spinner( "value" ) );
});
$( "#setvalue" ).click(function() {
spinner.spinner( "value", 5 );
});
$( "button" ).button();
});
</script>
</head>
<body>
<p>
<label for="spinner">选择一个值：</label>
<input id="spinner" name="value">
</p>
<p>
<button id="disable">切换禁用/启用</button>
<button id="destroy">切换部件</button>
</p>
<p>
<button id="getvalue">获取值</button>
<button id="setvalue">设置值为 5</button>
</p>
</body>
</html>
货币
本实例是一个捐款表格，带有货币选择和数量旋转器。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 旋转器（Spinner） - 货币</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://jqueryui.com/resources/demos/external/jquery.mousewheel.js"></script>
<script src="http://jqueryui.com/resources/demos/external/globalize.js"></script>
<script src="http://jqueryui.com/resources/demos/external/globalize.culture.de-DE.js"></script>
<script src="http://jqueryui.com/resources/demos/external/globalize.culture.ja-JP.js"></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
<script>
$(function() {
$( "#currency" ).change(function() {
$( "#spinner" ).spinner( "option", "culture", $( this ).val() );
});
$( "#spinner" ).spinner({
min: 5,
max: 2500,
step: 25,
start: 1000,
numberFormat: "C"
});
});
</script>
</head>
<body>
<p>
<label for="currency">要捐款的货币</label>
<select id="currency" name="currency">
<option value="en-US">US $</option>
<option value="de-DE">EUR €</option>
<option value="ja-JP">YEN ¥</option>
</select>
</p>
<p>
<label for="spinner">要捐款的数量：</label>
<input id="spinner" name="spinner" value="5">
</p>
</body>
</html>
小数
本实例是一个小数旋转器。增量设置为 0.01。处理文化变化的代码会读取当前的选择器的值，当改变文化时，会基于新的文化重新设置值的样式。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 旋转器（Spinner） - 小数</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://jqueryui.com/resources/demos/external/jquery.mousewheel.js"></script>
<script src="http://jqueryui.com/resources/demos/external/globalize.js"></script>
<script src="http://jqueryui.com/resources/demos/external/globalize.culture.de-DE.js"></script>
<script src="http://jqueryui.com/resources/demos/external/globalize.culture.ja-JP.js"></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
<script>
$(function() {
$( "#spinner" ).spinner({
step: 0.01,
numberFormat: "n"
});
$( "#culture" ).change(function() {
var current = $( "#spinner" ).spinner( "value" );
Globalize.culture( $(this).val() );
$( "#spinner" ).spinner( "value", current );
});
});
</script>
</head>
<body>
<p>
<label for="spinner">小数旋转器：</label>
<input id="spinner" name="spinner" value="5.06">
</p>
<p>
<label for="culture">选择一种用于格式化的文化：</label>
<select id="culture">
<option value="en-EN" selected="selected">English</option>
<option value="de-DE">German</option>
<option value="ja-JP">Japanese</option>
</select>
</p>
</body>
</html>
地图
谷歌地图集成，使用旋转器来改变纬度和经度。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 旋转器（Spinner） - 地图</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
<script src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script src="//code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://jqueryui.com/resources/demos/external/jquery.mousewheel.js"></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
<script>
$(function() {
function latlong() {
return new google.maps.LatLng( $("#lat").val(), $("#lng").val() );
}
function position() {
map.setCenter( latlong() );
}
$( "#lat, #lng" ).spinner({
step: .001,
change: position,
stop: position
});
var map = new google.maps.Map( $("#map")[0], {
zoom: 8,
center: latlong(),
mapTypeId: google.maps.MapTypeId.ROADMAP
});
});
</script>
<style>
#map {
width:500px;
height:500px;
}
</style>
</head>
<body>
<label for="lat">纬度</label>
<input id="lat" name="lat" value="44.797">
<br>
<label for="lng">经度</label>
<input id="lng" name="lng" value="-93.278">
<div id="map"></div>
</body>
</html>
溢出
溢出旋转器限制范围从 -10 到 10。对于 10 以上的值，会溢出到 -10，反之亦然。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 旋转器（Spinner） - 溢出</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://jqueryui.com/resources/demos/external/jquery.mousewheel.js"></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
<script>
$(function() {
$( "#spinner" ).spinner({
spin: function( event, ui ) {
if ( ui.value > 10 ) {
$( this ).spinner( "value", -10 );
return false;
} else if ( ui.value < -10 ) {
$( this ).spinner( "value", 10 );
return false;
}
}
});
});
</script>
</head>
<body>
<p>
<label for="spinner">选择一个值：</label>
<input id="spinner" name="value">
</p>
</body>
</html>
时间
一个扩展自旋转器的自定义部件。使用 全球化（Globalization）插件来解析和输出时间戳，带有自定义的 step 和 page 选项。向上/向下光标用于分钟的递增/递减，向上/向下翻页用于小时的递增/递减。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 旋转器（Spinner） - 时间</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://jqueryui.com/resources/demos/external/jquery.mousewheel.js"></script>
<script src="http://jqueryui.com/resources/demos/external/globalize.js"></script>
<script src="http://jqueryui.com/resources/demos/external/globalize.culture.de-DE.js"></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
<script>
$.widget( "ui.timespinner", $.ui.spinner, {
options: {
// 秒
step: 60 * 1000,
// 小时
page: 60
},
_parse: function( value ) {
if ( typeof value === "string" ) {
// 已经是一个时间戳
if ( Number( value ) == value ) {
return Number( value );
}
return +Globalize.parseDate( value );
}
return value;
},
_format: function( value ) {
return Globalize.format( new Date(value), "t" );
}
});
$(function() {
$( "#spinner" ).timespinner();
$( "#culture" ).change(function() {
var current = $( "#spinner" ).timespinner( "value" );
Globalize.culture( $(this).val() );
$( "#spinner" ).timespinner( "value", current );
});
});
</script>
</head>
<body>
<p>
<label for="spinner">时间旋转器：</label>
<input id="spinner" name="spinner" value="08:30 PM">
</p>
<p>
<label for="culture">选择一种用于格式化的文化：</label>
<select id="culture">
<option value="en-EN" selected="selected">English</option>
<option value="de-DE">German</option>
</select>
</p>
</body>
</html>
