前言
使用$.fn.progressbar.defaults重写默认值对象。下载该插件翻译源码
进度条提供了一个反馈显示一个长时间运行的操作进展。可以更新的进展条，让用户知道当前正在执行操作。
源码
/**
* jQuery EasyUI 1.3.2
*
*翻译：qq 1364386878 进度条
*/
(function ($) {
//初始化
function init(target) {
$(target).addClass("progressbar");
$(target).html("<div class=\"progressbar-text\"></div><div class=\"progressbar-value\"><div class=\"progressbar-text\"></div></div>");
return $(target);
};
//调整大小
function _resize(jq, width) {
var options = $.data(jq, "progressbar").options;
var bar = $.data(jq, "progressbar").bar;
if (width) {
options.width = width;
}
bar._outerWidth(options.width)._outerHeight(options.height);
bar.find("div.progressbar-text").width(bar.width());
bar.find("div.progressbar-text,div.progressbar-value").css({ height: bar.height() + "px", lineHeight: bar.height() + "px" });
};
//实例化进度条组件
$.fn.progressbar = function (target, parm) {
if (typeof target == "string") {
var method = $.fn.progressbar.methods[target];
if (method) {
return method(this, parm);
}
}
target = target || {};
return this.each(function () {
var progressbar = $.data(this, "progressbar");
if (progressbar) {
$.extend(progressbar.options, target);
} else {
progressbar = $.data(this, "progressbar",
{
options: $.extend({}, $.fn.progressbar.defaults,
$.fn.progressbar.parseOptions(this), target),
bar: init(this)
});
}
$(this).progressbar("setValue", progressbar.options.value);
_resize(this);
});
};
//默认方法
$.fn.progressbar.methods = {
//返回属性对象
options: function (jq) {
return $.data(jq[0], "progressbar").options;
},
//组件大小。
resize: function (jq, width) {
return jq.each(function () {
_resize(this, width);
});
},
//返回当前进度值
getValue: function (jq) {
return $.data(jq[0], "progressbar").options.value;
},
//设置一个新的进度值
setValue: function (jq, value) {
if (value < 0) {
value = 0;
}
if (value > 100) {
value = 100;
}
return jq.each(function () {
var options = $.data(this, "progressbar").options;
var text = options.text.replace(/{value}/, value);
var oldVal = options.value;
options.value = value;
$(this).find("div.progressbar-value").width(value + "%");
$(this).find("div.progressbar-text").html(text);
if (oldVal != value) {
options.onChange.call(this, value, oldVal);
}
});
}
};
//解析器
$.fn.progressbar.parseOptions = function (target) {
return $.extend({}, $.parser.parseOptions(target,
["width", "height", "text", { value: "number" }]));
};
//默认属性和事件
$.fn.progressbar.defaults = {
width: "auto",//设置进度条宽度
height: 22,//设置进度条gao度
value: 0,//百分比值
text: "{value}%",//要在组件上显示的文本模板
onChange: function (newValue, oldValue) {
}
};
})(jQuery);
示例代码
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Basic ProgressBar - jQuery EasyUI Demo</title>
<link rel="stylesheet" type="text/css" href="../../themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="../../themes/icon.css">
<link rel="stylesheet" type="text/css" href="../demo.css">
<script type="text/javascript" src="../../jquery-1.8.0.min.js"></script>
<script src="../../plugins2/jquery.parser.js"></script>
<script src="../../plugins2/jquery.progressbar.js"></script>
</head>
<body>
<h2>Basic ProgressBar</h2>
<div class="demo-info">
<div class="demo-tip icon-tip"></div>
<div>Click the button below to show progress information.</div>
</div>
<div style="margin:10px 0;">
<a href="#" class="easyui-linkbutton" onclick="start()">Start</a>
</div>
<div id="p" class="easyui-progressbar" style="width:400px;"></div>
<script>
function start(){
var value = $('#p').progressbar('getValue');
if (value < 100){
value += Math.floor(Math.random() * 10);
$('#p').progressbar('setValue', value);
setTimeout(arguments.callee, 200);
}
};
</script>
</body>
</html>