基于jquery 的一个progressbar widge


Posted in Javascript onOctober 29, 2010

此项目的demo网站http://wijmo.com/Wijmo-Open/samples/

/* 
* wijprogressbar Widget. V1.0 
* 
* Copyright (c) Componentone Inc. 
* 
* Depends: 
* Jquery-1.4.2.js 
* jquery.ui.core.js 
* jquery.ui.widget.js 
* 
*Optional dependence for effect settings: 
* jquery.effects.core.js 
* jquery.effects.blind.js 
* jquery.effects.bounce.js 
* jquery.effects.clip.js 
* jquery.effects.drop.js 
* jquery.effects.explode.js 
* jquery.effects.fold.js 
* jquery.effects.hightlight.js 
* jquery.effects.pulsate.js 
* jquery.effects.scale.js 
* jquery.effects.shake.js 
* jquery.effects.slide.js 
* jquery.effects.transfer.js 
* HTML: 
* <div id="progressbar" style="width:***;height:***"></div> 
*/ 
(function ($) { 
$.widget("ui.wijprogressbar", $.ui.progressbar, { 
options: { 
/// <summary> 
///The label's alignment on the progress bar. The value should be "east", "west", "center", "north", "south" or "running". 
///Default:"center". 
///Type:String. 
///Code sample:$('.selector').wijprogressbar('option','labelAlign','center'). 
///</summary> 
labelAlign: "center", 
/// <summary> 
///The value of the progress bar,the type should be numeric. 
///Default:0. 
///Type:Number. 
///Code sample:$('.selector').wijprogressbar('option','value',60). 
///</summary> 
maxValue: 100, 
/// <summary> 
///The minimum value of the progress bar,the type should be numeric. 
///Default:0. 
///Type:Number. 
///Code sample:$('.selector').wijprogressbar('option','minValue',0). 
///</summary> 
minValue: 0, 
/// <summary> 
///The fill direction of the progress bar.the value should be "east", "west", "north" or "south". 
///Default:"east". 
///Type:String. 
///Code sample:$('.selector').wijprogressbar('option','fillDirection','east'). 
///</summary> 
fillDirection: "east", 
/// <summary> 
///The progressbar's orientation.the value should be 'horizontal' or 'vertical'. 
///Default:"horizontal". 
///Type:String. 
///Code sample:$('selector').wijprogressbar('option','orientation','horizontal'). 
///</summary> 
///orientation: "horizontal", 
/// <summary> 
///Sets the format of the label text.The available formats are as follows: 
///{0} or {ProgressValue} express the current progress Value. 
///{1} or {PercentProgress} express the current percent of the progress bar. 
///{2} or {RemainingProgress} express the remaining progress of the progress bar. 
///{3} or {PercentageRemaining} express the remaining percent of the progress bar. 
///{4} or {Min} express the min Vlaue of the progress bar. 
///{5} or {Max} express the max Value of the progress bar. 
///Default:"{1}%". 
///Type:String. 
///Code sample:$('.selector').wijprogressbar('option','labelFormatString','{0}%'). 
///</summary> 
labelFormatString: "{1}%", 
/// <summary> 
///Set the format of the ToolTip of the progress bar,the expression of the format like the labelFormatString. 
///Default:"{1}%". 
///Type:String. 
///Code sample:$('.selector').wijprogressbar('option','toolTipFormatString','{1}%'). 
///</summary> 
toolTipFormatString: "{1}%", 
/// <summary> 
///The increment of the progress bar's indicator. 
///Default:1. 
///Type:Number. 
///</summary> 
///Code sample:$('.selector').wijprogressbar('option','indicatorIncrement',10). 
indicatorIncrement: 1, 
/// <summary> 
///The Image's url of the indicator. 
///Default:"". 
///Type:String. 
///Code sample:$('.selector').wijprogressbar('option','indicatorImage','images/abc.png'). 
///</summary> 
indicatorImage: "", 
/// <summary> 
///The delay of the progressbar's animation. 
///Default:0. 
///Type:Number. 
///Code sample:$('.selector').wijprogressbar('option', 
///</summary> 
animationDelay: 0, 
/// <summary> 
///The options parameter of the jQuery's animation. 
///Default:"{animated:'progress',duration:500}". 
///Type:Options. 
///Code sample:$('.selector').wijprogressbar('option','animationOptions',{animated:'progress',duration:600}). 
///</summary> 
animationOptions: { 
animated: 'progress', 
duration: 500 
} 
}, 

 //when set the options, trigger this method. 
_setOption: function (key, value) { 
var val, self = this; 
switch (key) { 
case "value": 
val = parseInt(value); 
self.options[key] = val; 
self._refreshValue(val); 
break; 
case "maxValue": 
case "minValue": 
val = parseInt(value); 
self.options[key] = val; 
self[key === "maxValue" ? "max" : "min"] = val; 
self._refreshValue(); 
break; 
case "labelFormatString": 
case "toolTipFormatString": 
self.options[key] = value; 
self._refreshValue(); 
//$.Widget.prototype._setOption.apply(this, arguments); 
break; 
case "orientation": 
case "fillDirection": 
case "labelAlign": 
case "indicatorImage": 
self.options[key] = value; 
self._initElements(); 
self._refreshValue(); 
//$.Widget.prototype._setOption.apply(this, arguments); 
break; 
case "indicatorIncrement": 
value = (value == 0 ? 1 : value); 
self.options[key] = value; 
self._initElements(); 
self._refreshValue(); 
break; 
default: break; 
} 
$.Widget.prototype._setOption.apply(self, arguments); 
}, 


 ///create the widget 
_create: function () { 
var self = this; 
self.min = self.options.minValue; 
self.max = self.options.maxValue; 
self.element.addClass("ui-wijprogressbar"); 
$.ui.progressbar.prototype._create.apply(self, arguments); 
self.label = $("<span>").addClass("ui-progressbar-label ui-corner-left").appendTo(self.valueDiv); 
self._initElements(); 
self._isInit = true; 
self._refreshValue(); 
}, 


 ///Trigger the pressbar event. 
_triggerEvent: function (eventName, oldValue, newValue, cancel) { 
var ea = $.Event(eventName); 
ea.data = { 
oldValue: oldValue, 
newValue: newValue, 
cancel: cancel 
}; 
this._trigger(eventName, ea); 
return ea.data.cancel; 
}, 


//refresh the progress value. 
_refreshValue: function () { 
var self = this; 
if (!self._isInit) { 
return; 
} 
var value = self.value(); 
var percent = (value - self.min) / (self.max - self.min) * 100; 
var o = self.options; 
var cancel = self._triggerEvent("beforeProgressChanging", self.element.attr("aria-valuenow"), value, false); 
if (cancel) { 
return; 
} 
self.valueDiv.css({ 
width: "", 
height: "" 
}); 





// If have animation. 
if (o.animationOptions.animated && o.animationOptions.duration > 0) { 
setTimeout($.proxy(function () { 
var o = self.options.animationOptions; 
var animateOptions = { 
content: self.valueDiv, 
complete: $.proxy(function () { 
self._triggerEvent("progressChanged", self.element.attr("aria-valuenow"), value, false); 
}, self), 
step: $.proxy(function (ovalue) { 
self._performAnimating(ovalue); 
}, self), 
processValue: percent 
} 
var animations = $.ui.wijprogressbar.animations; 
var duration = o.duration; 
var easing = o.animated; 
if (easing && !animations[easing]) { 
easing = "progress"; 
} 
if (!animations[easing]) { 
animations[easing] = function (options) { 
this.progress(options, { 
easing: easing, 
duration: duration || 1000 
}); 
} 
} 
animations[easing](animateOptions, self.options.animationOptions); 
}, self), o.animationDelay); 
} 
else { 
//trigger the progressChanged event. 
var oldValue = self.element.attr("aria-valuenow"); 
self._refreshProgress(percent); 
self._triggerEvent("progressChanged", oldValue, value, false); 
} 
}, 



 ///Set the label's position of the progress bar. 
_setLabelSide: function () { 
var self = this; 
var fillDirection = self.options.fillDirection; 
var labelAlign = self.options.labelAlign; 
if (self._isHorizontal()) { 
if (labelAlign === "west" || labelAlign === "east" || labelAlign === "center") { 
self.label.css("width", self.element.width() + 'px'); 
} 
else 
if (labelAlign === "running") { 
self.label.css("width", "auto"); 
} 
else { 
self.element.css("line-height", "normal"); 
self.valueDiv.css("line-height", "normal"); 
self.label.css("height", labelAlign === "north" ? self.element.height() + 'px' : "auto"); 
} 
} 
else { 
if (labelAlign === "west" || labelAlign === "east" || labelAlign === "center") { 
self.label.css({ "line-height": self.element.height() + 'px', "width": self.element.width() + 'px' }); 
} 
else 
if (labelAlign === "running") { 
self.label.css({ "height": "auto", "width": self.element.width() + 'px' }); 
} 
else { 
self.element.css("line-height", "normal"); 
self.valueDiv.css("line-height", "normal"); 
self.label.css("height", labelAlign === "north" ? self.element.height() + 'px' : "auto"); 
} 
} 
}, 



 ///get the progress bar's progress orientation. 
_isHorizontal: function () { 
return this.options.fillDirection === "west" || this.options.fillDirection === "east"; 
}, 


///start the progress 
startTask: function () { 
/// <summary>Start the progress</summary> 
if ($(":animated", this.element).length == 0) { 
var value = this.value(); 
this._refreshValue(value); 
} 
}, 



 ///stop the progress 
stopTask: function () { 
/// <summary>Stop the progress</summary> 
this.valueDiv.stop(); 
}, 



 //init the progress bar 
_initElements: function () { 
var self = this; 
var o = self.options; 
self.element.removeClass("ui-wijprogressbar-west ui-wijprogressbar-east ui-wijprogressbar-north ui-wijprogressbar-south").addClass("ui-wijprogressbar-" + o.fillDirection); 
var height = self.element.height(); 
self.valueDiv.css("line-height", ""); 
self.label.removeClass("lb_west lb_east lb_south lb_north lb_center lb_running").addClass("lb_" + o.labelAlign) 
.css("line-height", "").css({ 
left: "", 
right: "", 
top: "", 
bottom: "" 
}); 
if (self._isHorizontal()) { 
self.valueDiv.height(height) 
.css("line-height", height + "px"); 
} 
else { 
self.valueDiv.width(self.element.width()); 
} 
self._setLabelSide(); 
if (self.options.indicatorImage !== "") { 
self.valueDiv.css("background", "transparent url(" + self.options.indicatorImage + ") repeat fixed"); 
} 
}, 


 ///refresh the progress 
_refreshProgress: function (value) { 
var self = this; 
var ea = new $.Event('progressChanging'); 
var nowValue = value * (self.max - self.min) / 100 + self.min; 
var o = self.options; 
var cancel = self._triggerEvent("progressChanging", self.element.attr("aria-valuenow"), nowValue, false); 
if (cancel) { 
return; 
} 
if (self._isHorizontal()) { 
self.valueDiv.toggleClass(o.fillDirection === "east" ? "ui-corner-right" : "ui-corner-left", value === self.max).width(value + "%"); 
} 
else { 
self.valueDiv.toggleClass(o.fillDirection === "south" ? "ui-corner-bottom" : "ui-corner-top", value === self.max).height(value + "%"); 
} 
self.element.attr("aria-valuenow", nowValue); 
var txt = self._getFormatString(o.labelFormatString, value); 
self._setLabelsText(txt); 
var _tooTip = self._getFormatString(o.toolTipFormatString, value); 
self.element.attr("title", _tooTip); 
}, 


 ///play progress animation. 
_performAnimating: function (obj) { 
var self = this; 
var len = Math.floor(obj / self.options.indicatorIncrement); 
obj = len * self.options.indicatorIncrement; 
var o = self.options; 
self._refreshProgress(obj); 
if (o.labelAlign === "running") { 
if (self._isHorizontal()) { 
var eleWidth = self.element.width(); 
var labelWidth = self.label.outerWidth(); 
var progressWidth = self.valueDiv.outerWidth(); 
var left = eleWidth === progressWidth ? eleWidth - labelWidth : obj * eleWidth / 100 - labelWidth + labelWidth * (eleWidth - progressWidth) / eleWidth; 
self.label.css(o.fillDirection === "east" ? "left" : "right", left); 
} 
else { 
var eleHeight = self.element.height(); 
var labelHeight = self.label.outerHeight(); 
var progressHeight = self.valueDiv.outerHeight(); 
var top = eleHeight === progressHeight ? eleHeight - labelHeight : obj * eleHeight / 100 - labelHeight + labelHeight * (eleHeight - progressHeight) / eleHeight; 
self.label.css(o.fillDirection === "south" ? "top" : "bottom", top); 
} 
} 
}, 



 //set the label'text 
_setLabelsText: function (text) { 
if (!this._isHorizontal() && this.options.labelAlign === "rightOrBottom") { 
this.label.html('<span style=\'position:absolute;bottom:0px;text-align:center;width:' + this.element.width() + 'px;\'>' + text + '</span>'); 
return; 
} 
this.label.html(text); 
}, 



 //format the text 
_getFormatString: function (format, val) { 
var self = this; 
var processValue = parseInt(self.element.attr("aria-valuenow")); 
var remainingProcess = self.max - processValue 
var percentProgress = val; 
var percentageRemaining = 100 - val; 
var r = /\{0\}/g; 
format = format.replace(r, processValue.toString()); 
r = /\{ProgressValue\}/g; 
format = format.replace(r, processValue.toString()); 
r = /\{1\}/g; 
format = format.replace(r, percentProgress.toString()); 
r = /\{PercentProgress\}/g; 
format = format.replace(r, percentProgress.toString()); 
r = /\{2\}/g; 
format = format.replace(r, remainingProcess.toString()); 
r = /\{RemainingProgress\}/g; 
format = format.replace(r, remainingProcess.toString()); 
r = /\{3\}/g; 
format = format.replace(r, percentageRemaining.toString()); 
r = /\{PercentageRemaining\}/g; 
format = format.replace(r, percentageRemaining.toString()); 
r = /\{4\}/g; 
format = format.replace(r, self.min); 
r = /\{Min\}/g; 
format = format.replace(r, self.min); 
r = /\{5\}/g; 
format = format.replace(r, self.max); 
r = /\{Max\}/g; 
format = format.replace(r, self.max); 
return format; 
}, 



 ///destroy the widget. 
destroy: function () { 
this.element.empty(); 
this.element.removeClass("ui-wijprogressbar ui-widget ui-widget-content ui-corner-all ui-wijprogressbar-h").removeAttr("title"); 
$.Widget.prototype.destroy.apply(this, arguments); 
} 
}); 

///progress bar animation. If user want to write custom animation,can override the animations option.And set the animated to the options key. 
$.extend($.ui.wijprogressbar, { 
animations: { 
progress: function (options, additions) { 
options = $.extend({ 
easing: "swing", 
duration: 1000 
}, options, additions); 
options.content.stop(true, true).animate({ 
widthvalue: options.processValue 
}, options); 
} 
} 
}); 
})(jQuery);

widget主要是处理ui层面的,实用与否只有用了才知道,widget可以利用jQuery已经存在的css framework。利用themeRoller,可以很轻松的换肤。至于说功能,可以在用户反馈后再慢慢完善。
这个progressbar本身是继承自jQuery ui progressbar的。因为开源,如果自己有好的想法,自己也可以去增加自己需要的功能。
Javascript 相关文章推荐
表单提交前触发函数返回true表单才会提交
Mar 11 Javascript
JS获取iframe中longdesc属性的方法
Apr 01 Javascript
javascript中Date()函数在各浏览器中的显示效果
Jun 18 Javascript
javascript获取网页宽高方法汇总
Jul 19 Javascript
Node.js与Sails ~项目结构与Mvc实现及日志机制
Oct 14 Javascript
js密码强度校验
Nov 10 Javascript
聊一聊Vue.js过渡效果
Sep 07 Javascript
Angular JS数据的双向绑定详解及实例
Dec 31 Javascript
js选项卡的制作方法
Jan 23 Javascript
解析Vue 2.5的Diff算法
Nov 28 Javascript
vue的for循环使用方法
Feb 12 Javascript
浅谈vue.use()方法从源码到使用
May 12 Javascript
JQuery开发的数独游戏代码
Oct 29 #Javascript
Web前端设计模式  制作漂亮的弹出层
Oct 29 #Javascript
10个基于Jquery的幻灯片插件教程
Oct 29 #Javascript
jQuery.ajax 用户登录验证代码
Oct 29 #Javascript
Jquery Autocomplete 结合asp.net使用要点
Oct 29 #Javascript
JavaScript 小型打飞机游戏实现原理说明
Oct 28 #Javascript
基于jquery的网页SELECT下拉框美化代码
Oct 28 #Javascript
You might like
PHP图像处理类库及演示分享
2015/05/17 PHP
PHP DB 数据库连接类定义与用法示例
2019/03/11 PHP
asp.net和php的区别点总结
2019/10/10 PHP
PHP7 新增常量
2021/03/09 PHP
用JavaScript脚本实现Web页面信息交互
2006/10/11 Javascript
HTML-CSS群中单选引发的“事件”
2007/03/05 Javascript
Javascript中valueOf与toString区别浅析
2013/03/19 Javascript
Jquery 复选框取值兼容FF和IE8(测试有效)
2013/10/29 Javascript
jQuery中阻止冒泡事件的方法介绍
2014/04/12 Javascript
浅谈js中变量初始化
2015/02/03 Javascript
基于JavaScript创建动态Dom
2015/12/08 Javascript
javascript中的3种继承实现方法
2016/01/27 Javascript
Angular.js与Bootstrap相结合实现手风琴菜单代码
2016/04/13 Javascript
使用jquery获取url以及jquery获取url参数的实现方法
2016/05/25 Javascript
JavaScript读二进制文件并用ajax传输二进制流的方法
2016/07/18 Javascript
Vue 固定头 固定列 点击表头可排序的表格组件
2016/11/25 Javascript
Node.js如何响应Ajax的POST请求并且保存为JSON文件详解
2017/03/10 Javascript
JavaScript模块化之使用requireJS按需加载
2017/04/12 Javascript
js 简易版滚动条实例(适用于移动端H5开发)
2017/06/26 Javascript
Node.js学习教程之HTTP/2服务器推送【译】
2017/10/31 Javascript
在 Node.js 中使用 async 函数的方法
2017/11/17 Javascript
详解使用 Node.js 开发简单的脚手架工具
2018/06/08 Javascript
微信小程序实现天气预报功能
2018/07/18 Javascript
Vue 实现登录界面验证码功能
2020/01/03 Javascript
Python 时间处理datetime实例
2008/09/06 Python
利用Python实现原创工具的Logo与Help
2018/12/03 Python
python 图像平移和旋转的实例
2019/01/10 Python
钉钉群自定义机器人消息Python封装的实例
2019/02/20 Python
通过python检测字符串的字母
2020/02/18 Python
python 实现客户端与服务端的通信
2020/12/23 Python
html5移动端价格输入键盘的实现
2019/09/16 HTML / CSS
医学院校毕业生自荐信范文
2014/01/01 职场文书
公司领导班子对照检查存在问题整改措施
2014/10/02 职场文书
小学中队活动总结
2015/05/11 职场文书
处世之道:关于真诚相待的名言推荐
2019/12/02 职场文书
MySQL事务的隔离级别详情
2022/07/15 MySQL