网站seo排名优化,gwt 网站开发,怎么注册自己的品牌,游民星空是谁做的网站跟我做#xff1a;Javascript 下的日历控件#xff08;Calendar#xff09; [私有]
[私有]
[私有]
[私有]
显示控件. Calendar中的日期.
检查日期合法性. 是否合法. 是否闰年 是否闰年. 获取月的天数 天数. 设置选定日期. 获取选定日期.
月枚举. 周中日枚举. 日历控件…跟我做Javascript 下的日历控件Calendar [私有]
[私有]
[私有]
[私有]
显示控件. Calendar中的日期.
检查日期合法性. 是否合法. 是否闰年 是否闰年. 获取月的天数 天数. 设置选定日期. 获取选定日期.
月枚举. 周中日枚举. 日历控件 window.currentDay null; //当前选择日期 window.myTextBox null; //当前显示日期的控件 window.DayChangedCallback null;//日历选择日期的回调方法 window.MyCalendarPerforms null;//激活日历的方法, 通过显示控件的相关事件调用 //日历选择日期的回调方法 DayChangedCallback function(sender, args){ try{ currentDay args; myTextBox.value currentDay.GetText(年, 月, 日);//输出所选日期. 自定义日期序列化. //myCalendar.Hidden();//掩藏控件 } catch(e){ alert(e.message); } } //激活日历的方法 MyCalendarPerforms function(textBox){ try{ if(myCalendar.IsVisible()) myCalendar.Hidden();//掩藏控件 else{ if(myTextBox.value ! )//注意: myTextBox textBox currentDay.FromText(myTextBox.value, 年, 月, 日);//获取已有日期. 注意根据日期的格式, 让系统进行反序列. myCalendar.Show(myTextBox, currentDay);//设置日历显示日期. Show(sender, currentDay), 日历将显示在 sender 附近, 初始化时显示 currentDay. } } catch(e){ alert(e.message); } } //日历显示容器 document.write( ); var pannel document.getElementById(calendarPannel); //日期显示绑定的控件 document.write( ); myTextBox document.getElementById(myTextBox); //本地化, 缺省为英文 var months new CalendarMonths([一月, 二月, 三月, 四月, 五月, 六月, 七月, 八月, 九月, 十月, 十一月, 十二月]); var weekdays new CalendarWeekDays([日,一,二,三,四,五,六]); //设置初始日期. 缺省参数则为今天. currentDay new CalendarDay();//currentDay new CalendarDay(2008, 5, 12); //创建日历控件. 注意自定义日历显示位置的位移差, 此处用了(5, -150). myCalendar new Calendar(myCalendar, pannel, DayChangedCallback, 5, -150, currentDay, months, weekdays); } CalendarDemon();//需要额外引用 Tooltip.js /script 右侧是该控件的示范应用朋友们可点击试用: script typetext/javascript function Tooltip(pannel, CreateTipCallback, toper, lefter){ /// /// 标签提示类. 使用方法参见示例代码 JsDemons/Html/TooltipDemon.js. /// 请尊重作者劳动, 引用需注明出处. /// Howard.Queenhotmail.com, 2008-04-24. /// http://howard-queen.cnblogs.com/ /// 2008-07-10 /// 1, 修改 sender.top [number] 为 sender [number]px; 完美支持 Firefox. /// /// 提示容器. /// 用以生成提示内容的方法. /// 默认上位移. /// 默认左位移. this._sender null; this._pannel null; this._top null; this._toper 20; this._left null; this._lefter 10; this._Init(pannel, CreateTipCallback, toper, lefter); } Tooltip.prototype { _Init: function(pannel, CreateTipCallback, toper, lefter){ /// [私有] if(pannel undefined) throw {name: ArgumentNullException, message: 提示内容的容器不可为空.}; this._pannel pannel; this._pannel.style.position absolute; if(CreateTipCallback undefined) return; this._CreateTipCallback CreateTipCallback; if(toper undefined) return; this._toper toper; if(lefter undefined) return; this._lefter lefter; }, _CreateTipCallback: function(sender, args){ /// [私有] return args.toString(); }, IsVisible: function(){ return this._pannel.style.display block; }, Show: function(sender, args, toper, lefter){ /// 显示提示框. /// 事件者. /// 参数值. /// 上位移. /// 左位移. if(this._sender ! sender){ this._sender sender;//缓存 this._pannel.innerHTML this._CreateTipCallback(sender, args); this._top sender.offsetTop sender.clientHeight (toper undefined ? this._toper : toper); this._left sender.offsetLeft sender.clientWidth (lefter undefined ? this._lefter : lefter); while (sender.offsetParent ! null){ sender sender.offsetParent; this._top sender.offsetTop; this._left sender.offsetLeft; } this._pannel.style.top [this._top, px].join(); this._pannel.style.left [this._left, px].join(); //上面的代码都是将悬浮层调整到指定控件的正下方 //alert(Top: this._pannel.style.top Left: this._pannel.style.left); } this._pannel.style.display block; }, Hidden: function(){ /// 隐藏提示框. this._pannel.style.display none; } } /// function Calendar(Id, pannel, SelectedDayChangedEvent, toper, lefter, selectedDay, calendarMonths, calendarWeekDays){ /// /// 日期选择控件. 月份从 1 开始.使用方法参见示例代码 JsDemons/Html/CalendarDemon.js. /// 参考版本《日期选择 - BY ziyue, By Jiang Hongbin等》. /// /// /// 请尊重作者劳动, 引用需注明出处. /// Howard.Queenhotmail.com, 2008-07-03. /// http://howard-queen.cnblogs.com/ /// 2008-07-10 /// 1, 修改 node.innerText 为 node.innerHTML. 完美支持 Firefox. /// 2, 添加年份无上下限功能. /// 3, 添加当前所选日期亮显功能. /// 4, 更改了自定义日期序列化与反序列化, 使得更加友好. /// 5, 采用显示缓存策略以提高性能. /// 6, 一些方法的命名更改. /// /// 当前控件名称. /// 显示容器. /// 选择日期更改事件. /// 所选日期. /// 月名称. /// 周中日名称. this._Init(Id, pannel, SelectedDayChangedEvent, toper, lefter, selectedDay, calendarMonths, calendarWeekDays); } Calendar.prototype { _Init: function(Id, pannel, SelectedDayChangedEvent, toper, lefter, selectedDay, calendarMonths, calendarWeekDays){ this.Id Id; if(pannel undefined) throw {name:ArgumentNullException, message:参数为空, 参数名 pannel.}; if(SelectedDayChangedEvent undefined) throw {name:ArgumentNullException, message:参数为空, 参数名 SelectedDayChangedEvent.}; this._SelectedDayChangedEvent SelectedDayChangedEvent;//[私有]日选择已更改事件. this._toolTip new Tooltip(pannel, this._DrawCallback, toper, lefter);//[私有]显示控件. this._today new CalendarDay();//[私有]今天. if(selectedDay undefined)//[私有]当前所选日. this.selectedDay new CalendarDay(); else this.selectedDay selectedDay; if(calendarMonths undefined)//[私有]月名称. this.calendarMonths new CalendarMonths(); else this.calendarMonths calendarMonths; if(calendarWeekDays undefined)//[私有]周中日名称. this.calendarWeekDays new CalendarWeekDays(); else this.calendarWeekDays calendarWeekDays; this._yearsSelect null;//[私有]年选择控件. this._monthsSelect null;//[私有]月选择控件. this._daysTable null;//[私有]周、日显示控件. this._currentCell null; this._currentCellColor null; }, _DrawCallback: function(sender, args){ /// 回调显示. var temp new Array(); args._Render(temp); return temp.join(); }, _Render: function(temp){ /// [私有] temp.push( ); this._RenderYear(temp); this._RenderMonth(temp); temp.push([ , this._today.GetText(), ].join()); this._RenderWeek(temp); this._RenderDay(temp); temp.push( ); }, _RenderYear: function(temp){ /// [私有] temp.push([ ].join()); temp.push([....].join()); for (var i this.selectedDay.year - 10; i this.selectedDay.year 10; i) temp.push([....].join()); temp.push(); }, _RenderMonth: function(temp){ /// [私有] temp.push([].join()); for (var i 1; i this.calendarMonths.List.length; i) temp.push([); }, _RenderWeek: function(temp){ /// temp.push( ); for (var i 0; i this.calendarWeekDays.List.length; i) temp.push([ , this.calendarWeekDays.List[i], ].join()); temp.push( ); }, _RenderDay: function(temp){ /// for (var i 0; i 6; i){ temp.push( ); for (var j 0; j this.calendarWeekDays.List.length; j) temp.push([ ].join()); temp.push( ); } }, _OnCurrentDayChanging: function(dayCell){ if(this._currentCell ! null){ this._currentCell.style.backgroundColor this._currentCellColor; } this._currentCell dayCell; this._currentCellColor dayCell.style.backgroundColor; dayCell.style.backgroundColor yellow; }, _Refresh: function(year, month) { /// var weekIndex 1; var dayNumber 1; var daysCount this.selectedDay.GetMonthDays(year, month);//月中日数 var dayInWeek new Date(year, month - 1, 1).getDay();//初始周中日数 //第一行清零 for (var i 0; i dayInWeek i this._daysTable.rows[weekIndex].cells.length; i){ this._daysTable.rows[weekIndex].cells[i].innerHTML ; } //第一行显示 for (; dayInWeek this._daysTable.rows[weekIndex].cells.length; dayInWeek, dayNumber){ this._daysTable.rows[weekIndex].cells[dayInWeek].innerHTML dayNumber; } //内容行显示 for (weekIndex ;dayNumber daysCount weekIndex this._daysTable.rows.length; weekIndex){ for (dayInWeek 0; dayNumber daysCount dayInWeek this._daysTable.rows[weekIndex].cells.length; dayInWeek , dayNumber){ this._daysTable.rows[weekIndex].cells[dayInWeek].innerHTML dayNumber; } } //余下行清零 weekIndex --; for (; weekIndex this._daysTable.rows.length; weekIndex){ for (; dayInWeek this._daysTable.rows[weekIndex].cells.length; dayInWeek ){ this._daysTable.rows[weekIndex].cells[dayInWeek].innerHTML ; } dayInWeek 0; } }, _CreateCalenday: function(year, month) { /// var theDay this.selectedDay.day; var weekIndex 1; var dayNumber 1; var daysCount this.selectedDay.GetMonthDays(year, month);//月中日数 var dayInWeek new Date(year, month - 1, 1).getDay();//初始周中日数 //第一行清零 for (var i 0; i dayInWeek i this._daysTable.rows[weekIndex].cells.length; i){ this._daysTable.rows[weekIndex].cells[i].innerHTML ; } //第一行显示 for (; dayInWeek this._daysTable.rows[weekIndex].cells.length; dayInWeek, dayNumber){ this._daysTable.rows[weekIndex].cells[dayInWeek].innerHTML dayNumber; if(year this.selectedDay.year month this.selectedDay.month theDay dayNumber){ this._OnCurrentDayChanging(this._daysTable.rows[weekIndex].cells[dayInWeek]); } } //内容行显示 for (weekIndex ;dayNumber daysCount weekIndex this._daysTable.rows.length; weekIndex){ for (dayInWeek 0; dayNumber daysCount dayInWeek this._daysTable.rows[weekIndex].cells.length; dayInWeek , dayNumber){ this._daysTable.rows[weekIndex].cells[dayInWeek].innerHTML dayNumber; if(year this.selectedDay.year month this.selectedDay.month theDay dayNumber){ this._OnCurrentDayChanging(this._daysTable.rows[weekIndex].cells[dayInWeek]); } } } //余下行清零 weekIndex --; for (; weekIndex this._daysTable.rows.length; weekIndex){ for (; dayInWeek this._daysTable.rows[weekIndex].cells.length; dayInWeek ){ this._daysTable.rows[weekIndex].cells[dayInWeek].innerHTML ; } dayInWeek 0; } }, _OnYearChanging: function(sender, args){ switch(args){ case up: var ops sender.options; var max parseInt(ops[1].value) - 20; for(var i 1; i 21; i , max ){ ops[i].value max; ops[i].text max; } sender.selectedIndex 20; args ops[20].value; break; case down: var ops sender.options; var max parseInt(ops[1].value) 20; for(var i 1; i 21; i , max ){ ops[i].value max; ops[i].text max; } sender.selectedIndex 1; args ops[1].value; break; default: break; } this._Refresh(args, this._monthsSelect.value); }, _OnMonthChanging: function(sender, args){ this._Refresh(this._yearsSelect.value, args); }, _OnDayChanging: function(sender, args){ if(args ) args 1; this.selectedDay new CalendarDay(this._yearsSelect.value, this._monthsSelect.selectedIndex 1, args); this._OnCurrentDayChanging(sender); if(this._SelectedDayChangedEvent ! null) this._SelectedDayChangedEvent(sender, this.selectedDay); }, IsVisible: function(){ return this._toolTip.IsVisible(); }, Hidden: function(){ //关闭选择窗口 this._toolTip.Hidden(); }, Show: function(sender, args){ /// /// 发送者. /// 当前日期. if(this._yearsSelect undefined){//第一次加载. Tooltip 中有对当前控件的缓存, 因此这里没有必要重复计算. this.selectedDay args; this.offsetTop sender.offsetTop; this.offsetLeft sender.offsetLeft; this.clientHeight sender.clientHeight; this.clientWidth sender.clientWidth; this._toolTip.Show(sender, this); this._yearsSelect document.getElementById([this.Id, _yearsSelect].join()); this._monthsSelect document.getElementById([this.Id, _monthsSelect].join()); this._daysTable document.getElementById([this.Id, _daysTable].join()); for (var weekIndex 0, dayInWeek 0; weekIndex this._daysTable.rows.length; weekIndex){ for (; dayInWeek this._daysTable.rows[weekIndex].cells.length; dayInWeek ){ cell this._daysTable.rows[weekIndex].cells[dayInWeek]; switch(dayInWeek){ case 0://星期日 cell.style.color red; break; case 6://星期六 cell.style.color green; break; default://其他 break; } } dayInWeek 0; } this._CreateCalenday(this._yearsSelect.value, this._monthsSelect.value); } else{ this._toolTip.Show(sender, this); } } } function CalendarDay(year, month, day){ /// this._Init(year, month, day); } CalendarDay.prototype { _daysCountOfMonths: new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31), _Init: function(year, month, day){ this.CheckDate(year, month, day); var today new Date(); this.year today.getFullYear();//年份. this.month today.getMonth() 1;//月份. this.day today.getDate();//月中日数. if(year undefined) return; this.year year; if(month undefined) return; this.month month; if(day undefined) return; this.day day; this._dayInWeek -1; }, _GetSubNumber: function(string, head, tail){ if(head ){ var t string.indexOf(tail); if(t 0) throw {name: , message:}; return string.slice(0, t); } else if(tail ){ var h string.lastIndexOf(head) 1; if(h 1) throw {name: , message: }; return string.slice(h); } else{ var h string.indexOf(head) 1; if(h 1) throw {name: , message: }; var t string.indexOf(tail, h); if(t 0) throw {name: , message:}; return string.slice(h, t); } }, CheckDate: function(year, month, day){ /// /// 年份. /// 月份. /// 月中日数. /// if(year undefined) return; if(year 0) throw {name:ArgumentOutOfRangeException, message:参数越界, 参数名 year.}; if(month undefined) return; if (month 1 || month 12) throw {name:ArgumentOutOfRangeException, message:参数越界, 参数名 month.}; if(day undefined) return; if (day 1 || day 31) throw {name:ArgumentOutOfRangeException, message:参数越界, 参数名 day.}; if (day 31 (month 4 || month 6 || month 9 || month 11))//检查小月 throw {name:ArgumentOutOfRangeException, message:参数越界, 参数名 day.}; if (month 2 (day 29 || (day 29 !this.IsLeapYear(year))))//检查闰月 throw {name:ArgumentOutOfRangeException, message:参数越界, 参数名 day.}; }, GetDayInWeek: function(){ if(this._dayInWeek 0){ this._dayInWeek new Date(this.year, this.month - 1, this.day).getDay(); } return this._dayInWeek; }, IsLeapYear: function(year){ /// /// 年份. /// if(year 0) throw {name:ArgumentOutOfRangeException, message:参数越界, 参数名 year.}; return ((year % 4) 0) ((year % 100 ! 0)) || (year % 400) 0; }, GetMonthDays: function(year, month){ /// /// 年份. /// 月份. /// if(year 0) throw {name:ArgumentOutOfRangeException, message:参数越界, 参数名 year.}; if(month 1 || month 12) throw {name:ArgumentOutOfRangeException, message:参数越界, 参数名 month.}; if (month 2 this.IsLeapYear(year))//闰年闰月 return 29; return this._daysCountOfMonths[month - 1]; }, FromText: function(text, yearCaption, monthCaption, dayCaption){ /// /// 日期表达式, 顺序为年、月、日. if(text undefined || text null || text ){ throw {name:ArgumentNullException, message:参数为空, 参数名 text.}; } if(yearCaption undefined || yearCaption null || yearCaption ) yearCaption -; if(monthCaption undefined || monthCaption null || monthCaption ) monthCaption -; if(dayCaption undefined || dayCaption null) dayCaption ; var year parseInt(this._GetSubNumber(text, , yearCaption)); var month parseInt(this._GetSubNumber(text, yearCaption, monthCaption)); var day parseInt(this._GetSubNumber(text, monthCaption, dayCaption)); this.CheckDate(year, month, day); this.year year; this.month month; this.day day; this._dayInWeek -1; }, GetText: function(yearCaption, monthCaption, dayCaption){ /// if(yearCaption undefined || yearCaption null || yearCaption ) yearCaption -; if(monthCaption undefined || monthCaption null || monthCaption ) monthCaption -; if(dayCaption undefined || dayCaption null) dayCaption ; return [this.year, yearCaption, this.month, monthCaption, this.day, dayCaption].join(); }, GetLocalMonth: function(calendarMonths){ return calendarMonths.List[this.month - 1]; }, GetLocalWeekDay: function(calendarWeekDays){ return calendarWeekDays.List[this.GetDayInWeek()]; } } function CalendarMonths(names){ /// /// 月自定义名称数组. if(names undefined){ this.List new Array(January, February, March, April, May, June, July, August, September, October, November, December); } else{ if(names.length ! 12) throw {name:ArgumentException, message:非法参数类型, 参数名 names.}; this.List names; } } function CalendarWeekDays(names){ /// /// 周中日自定义名称数组. if(names undefined){ this.List new Array(Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday); } else{ if(names.length ! 7) throw {name:ArgumentException, message:非法参数类型, 参数名 names.}; this.List names; } } /// 下载源码(20080824) 曾经我发布过《几个Javascript类》得到部分朋友的支持有道是授之予鱼不如授之予渔。同时结合朋友们的评价我对该日历控件做了兼容性检查已经“基本”支持火狐浏览器应用了遗留一个小问题火狐下面“日”提取有问题不知道有兴趣的朋友能不能在读完本文后自己动手修正该漏洞提示火狐不支持 element.innerText但支持 innerHTML :)。 每个人都是从“不会”到“会”或者从无到有走过来的。当初为了这样一个在静态 html 文件可应用的轻量级控件找了不少站点。源于自己出身于 c#故在应用方式上做了类 c# 包装。 先谈怎么应用然后说我是怎么实现的。以下是我在源码包中的演示代码 function CalendarDemon(){ /// summary /// 如何使用 Calendar 类的演示代码. 参见代码 JsLibrary/Html/Calendar.js. /// 请尊重作者劳动, 引用需注明出处. /// Howard.Queenhotmail.com, 2008-07-03. /// http://howard-queen.cnblogs.com/ /// /summary //全局变量 window.myCalendar null; //日历控件 window.currentDay null; //当前选择日期 window.myTextBox null; //当前显示日期的控件 window.DayChangedCallback null;//日历选择日期的回调方法 window.MyCalendarPerforms null;//激活日历的方法, 通过显示控件的相关事件调用 //日历选择日期的回调方法 DayChangedCallback function(sender, args){ try{ currentDay args; myTextBox.value currentDay.GetText(年, 月, 日);//输出所选日期. 自定义日期序列化. //myCalendar.Hidden();//掩藏控件 } catch(e){ alert(e.message); } } //激活日历的方法 MyCalendarPerforms function(textBox){ try{ if(myCalendar.IsVisible()) myCalendar.Hidden();//掩藏控件 else{ if(myTextBox.value ! )//注意: myTextBox textBox currentDay.FromText(myTextBox.value, 年, 月, 日);//获取已有日期. 注意根据日期的格式, 让系统进行反序列. myCalendar.Show(myTextBox, currentDay);//设置日历显示日期. Show(sender, currentDay), 日历将显示在 sender 附近, 初始化时显示 currentDay. } } catch(e){ alert(e.message); } } //日历显示容器 document.write(div idcalendarPannel styleposition:absolute; z-index:1; dispay:none;/div); var pannel document.getElementById(calendarPannel); //日期显示绑定的控件 document.write(input idmyTextBox typetext οnclickjavascript:MyCalendarPerforms(this); /); myTextBox document.getElementById(myTextBox); //本地化, 缺省为英文 var months new CalendarMonths([一月, 二月, 三月, 四月, 五月, 六月, 七月, 八月, 九月, 十月, 十一月, 十二月]); var weekdays new CalendarWeekDays([日,一,二,三,四,五,六]); //设置初始日期. 缺省参数则为今天. currentDay new CalendarDay();//currentDay new CalendarDay(2008, 5, 12); //创建日历控件. 注意自定义日历显示位置的位移差, 此处用了(5, -150). myCalendar new Calendar(myCalendar, pannel, DayChangedCallback, 5, -150, currentDay, months, weekdays); } 应用它涉及到 5 个关键全局变量的定义。该控件实例当前所选择的日期实例显示当前日期的绑定控件日期选择后的回调函数以及激活日历的方法。月份等显示支持本地化设置甚至当前日期的输出也支持本地化。 “揭密该控件的实现内幕” /// reference pathTooltip.js/ function Calendar(Id, pannel, SelectedDayChangedEvent, toper, lefter, selectedDay, calendarMonths, calendarWeekDays){ /// summary /// 日期选择控件. 月份从 1 开始.使用方法参见示例代码 JsDemons/Html/CalendarDemon.js. /// 参考版本《日期选择 - BY ziyue, By Jiang Hongbin等》. /// see crefhttp://web-v.com/article.asp?id3/ /// seealso crefhttp://web-v.com/trackback.asp?tbID3actionaddtbtbKey2fefac8959f18cceb46771512eff082b27e97c09/ /// 请尊重作者劳动, 引用需注明出处. /// Howard.Queenhotmail.com, 2008-07-03. /// http://howard-queen.cnblogs.com/ /// 2008-07-10 /// 1, 修改 node.innerText 为 node.innerHTML. 完美支持 Firefox. /// 2, 添加年份无上下限功能. /// 3, 添加当前所选日期亮显功能. /// 4, 更改了自定义日期序列化与反序列化, 使得更加友好. /// 5, 采用显示缓存策略以提高性能. /// 6, 一些方法的命名更改. /// /summary /// param nameId typestring当前控件名称./param /// param namepannel typecontrol显示容器./param /// param nameSelectedDayChangedEvent typeevent选择日期更改事件./param /// param nameselectedDay typeCalendarDay所选日期./param /// param namecalendarMonths typeCalendarMonths月名称./param /// param namecalendarWeekDays typeCalendarWeekDays周中日名称./param this._Init(Id, pannel, SelectedDayChangedEvent, toper, lefter, selectedDay, calendarMonths, calendarWeekDays); } Calendar.prototype { _Init: function(Id, pannel, SelectedDayChangedEvent, toper, lefter, selectedDay, calendarMonths, calendarWeekDays){ }, _DrawCallback: function(sender, args){ /// summary回调显示./summary }, _Render: function(temp){ /// summary[私有]/summary }, _RenderYear: function(temp){ /// summary[私有]/summary }, _RenderMonth: function(temp){ /// summary[私有]/summary }, _RenderWeek: function(temp){ /// summary[私有]/summary }, _RenderDay: function(temp){ /// summary[私有]/summary }, _OnCurrentDayChanging: function(dayCell){ }, _Refresh: function(year, month) { /// summary[私有]/summary }, _CreateCalenday: function(year, month) { /// summary[私有]/summary }, _OnYearChanging: function(sender, args){ }, _OnMonthChanging: function(sender, args){ }, _OnDayChanging: function(sender, args){ }, IsVisible: function(){ }, Hidden: function(){ }, Show: function(sender, args){ } } function CalendarDay(year, month, day){ /// summaryCalendar中的日期./summary this._Init(year, month, day); } CalendarDay.prototype { _daysCountOfMonths: new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31), _Init: function(year, month, day){ }, _GetSubNumber: function(string, head, tail){ }, CheckDate: function(year, month, day){ /// summary检查日期合法性./summary /// param nameyear typeint年份./summary /// param namemonth typeint月份./summary /// param nameday typeint月中日数./summary /// returns是否合法./returns }, GetDayInWeek: function(){ }, IsLeapYear: function(year){ /// summary是否闰年/summary /// param nameyear typeint年份./param /// returns是否闰年./returns }, GetMonthDays: function(year, month){ /// summary获取月的天数/summary /// param nameyear typeint年份./param /// param namemonth typeint月份./param /// returns天数./returns }, FromText: function(text, yearCaption, monthCaption, dayCaption){ /// summary设置选定日期./summary /// param nametext typestring日期表达式, 顺序为年、月、日./summary }, GetText: function(yearCaption, monthCaption, dayCaption){ /// summary获取选定日期./summary }, GetLocalMonth: function(calendarMonths){ }, GetLocalWeekDay: function(calendarWeekDays){ } } function CalendarMonths(names){ /// summary月枚举./summary /// param namenames typeArray月自定义名称数组./param } function CalendarWeekDays(names){ /// summary周中日枚举./summary /// param namenames typeArray周中日自定义名称数组./param } 如上所示我将该控件分解为三个类进行实现Calendar 只负责绘制子控件以及事件收集CalendarDay 负责对时间进行核准、计算以及输出剩下两个类似枚举的辅助类。对于 Tooltip这是我早前包装的不是为日历控件特制。这些都有别于原始素材注意类 Calendar 注释中的 see 以及 seealso 部分感兴趣的朋友可以就可复用性进行对比。 Calendar 只对外透露三个方法: Show()Hidden()IsVisible()。何时显示、何时掩藏都由应用开发者定制这给开发人员在不同场合的应用制造了便利。 在控件核心类 Calendar 的绘制算法上我将年_RenderYear()、月_RenderMonth()、周_RenderWeek()、日_RenderDay()独立为方法进行输出有利于代码的自说明更方便朋友们的定制与修正。在后期的更新中我在“年”下拉框上增加了“更多过去”与“更多将来”下拉选项使得年份也不会拘泥于某个特定时间段而扩展到了无限。而在显示控件Show()时为了防止大量重复计算只在初次加载控件时进行绘制但这造成一个小问题用户当前输入框中的内容只在初始化会同步到控件其他时刻控件将忽略。如下代码 Show: function(sender, args){ /// summary显示控件./summary /// param namesender typecontrol发送者./param /// param nameargs typeCalendarDay当前日期./param if(this._yearsSelect undefined){//第一次加载. Tooltip 中有对当前控件的缓存, 因此这里没有必要重复计算. this.selectedDay args; this.offsetTop sender.offsetTop; this.offsetLeft sender.offsetLeft; this.clientHeight sender.clientHeight; this.clientWidth sender.clientWidth; this._toolTip.Show(sender, this); this._yearsSelect document.getElementById([this.Id, _yearsSelect].join()); this._monthsSelect document.getElementById([this.Id, _monthsSelect].join()); this._daysTable document.getElementById([this.Id, _daysTable].join()); for (var weekIndex 0, dayInWeek 0; weekIndex this._daysTable.rows.length; weekIndex){ for (; dayInWeek this._daysTable.rows[weekIndex].cells.length; dayInWeek ){ cell this._daysTable.rows[weekIndex].cells[dayInWeek]; switch(dayInWeek){ case 0://星期日 cell.style.color red; break; case 6://星期六 cell.style.color green; break; default://其他 break; } } dayInWeek 0; } this._CreateCalenday(this._yearsSelect.value, this._monthsSelect.value); } else{ this._toolTip.Show(sender, this); } } 在日期类 CalendarDay 的设计上针对日期的输出形式仍有较大开发空间。在后期的更新中我只是简单的加了对年月日的重命名输出以及对该输出的反向识别但没有实现类 c# 的 ToString(yyMMdd) 等方法。看我的具体实现 FromText: function(text, yearCaption, monthCaption, dayCaption){ /// summary设置选定日期./summary /// param nametext typestring日期表达式, 顺序为年、月、日./summary if(text undefined || text null || text ){ throw {name:ArgumentNullException, message:参数为空, 参数名 text.}; } if(yearCaption undefined || yearCaption null || yearCaption ) yearCaption -; if(monthCaption undefined || monthCaption null || monthCaption ) monthCaption -; if(dayCaption undefined || dayCaption null) dayCaption ; var year parseInt(this._GetSubNumber(text, , yearCaption)); var month parseInt(this._GetSubNumber(text, yearCaption, monthCaption)); var day parseInt(this._GetSubNumber(text, monthCaption, dayCaption)); this.CheckDate(year, month, day); this.year year; this.month month; this.day day; this._dayInWeek -1; }, GetText: function(yearCaption, monthCaption, dayCaption){ /// summary获取选定日期./summary if(yearCaption undefined || yearCaption null || yearCaption ) yearCaption -; if(monthCaption undefined || monthCaption null || monthCaption ) monthCaption -; if(dayCaption undefined || dayCaption null) dayCaption ; return [this.year, yearCaption, this.month, monthCaption, this.day, dayCaption].join(); }, 开发过程的乐趣在于你所做的给自己或者别人带来了一些便利对于学习开发的入门兄弟来说更是如此。总是说程序员大概都是懒人能复用的代码绝不写第二遍有些人甚至因此偏执于搞复用用最少的现有代码延用过去做好的“控件”。但能否在各种场景下复用就看你对经验的总结了。 虽然都是小把戏但还是善意的提醒朋友们将一个计算过程分滩给多个方法每个方法短而功能明确这对以后追加功能或是查找漏洞都会很有帮助。什么时候我能把设计模式给搞透
