ExtJs实现日期的SearchDateField
一。一些废话废话的不说！开代码
二。截图
http://dl.iteye.com/upload/picture/pic/119068/74783f00-a7fd-34e8-8abf-a53c19b96bb4.gif
三。代码结构
Ext.ns('Ext.sy');Ext.sy.SearchDateField = Ext.extend(Ext.form.TwinTriggerField,{ format : "Y-m-d", editable :false, altFormats : "m/d/Y|n/j/Y|n/j/y|m/j/y|n/d/y|m/j/Y|n/d/Y|m-d-y|m-d-Y|m/d|m-d|md|mdy|mdY|d|Y-m-d|n-j|n/j", disabledDaysText : "Disabled", disabledDatesText : "Disabled", minText : "The date in this field must be equal to or after {0}", maxText : "The date in this field must be equal to or before {0}", invalidText : "{0} is not a valid date - it must be in the format {1}", trigger1Class : 'x-form-date-trigger', trigger2Class : 'x-form-clear-trigger', hideTrigger2:true, showToday : true, startDay : 0, defaultAutoCreate : {tag: "input", type: "text", size: "10", autocomplete: "off"}, initTime: '12', initTimeFormat: 'H', width:180, hasSearch : false, safeParse : function(value, format) { if (Date.formatContainsHourInfo(format)) { return Date.parseDate(value, format); } else { var parsedDate = Date.parseDate(value + ' ' + this.initTime, format + ' ' + this.initTimeFormat); if (parsedDate) { return parsedDate.clearTime(); } } }, initComponent : function(){ Ext.sy.SearchDateField.superclass.initComponent.call(this); this.addEvents( 'select' ); if(Ext.isString(this.minValue)){ this.minValue = this.parseDate(this.minValue); } if(Ext.isString(this.maxValue)){ this.maxValue = this.parseDate(this.maxValue); } this.disabledDatesRE = null; this.initDisabledDays(); }, initEvents: function() { Ext.sy.SearchDateField.superclass.initEvents.call(this); this.keyNav = new Ext.KeyNav(this.el, { "down": function(e) { this.onTrigger1Click(); }, scope: this, forceKeyDown: true }); }, initDisabledDays : function(){ if(this.disabledDates){ var dd = this.disabledDates, len = dd.length - 1, re = "(?:"; Ext.each(dd, function(d, i){ re += Ext.isDate(d) ? '^' + Ext.escapeRe(d.dateFormat(this.format)) + '$' : dd; if(i != len){ re += '|'; } }, this); this.disabledDatesRE = new RegExp(re + ')'); } }, setDisabledDates : function(dd){ this.disabledDates = dd; this.initDisabledDays(); if(this.menu){ this.menu.picker.setDisabledDates(this.disabledDatesRE); } }, setDisabledDays : function(dd){ this.disabledDays = dd; if(this.menu){ this.menu.picker.setDisabledDays(dd); } }, setMinValue : function(dt){ this.minValue = (Ext.isString(dt) ? this.parseDate(dt) : dt); if(this.menu){ this.menu.picker.setMinDate(this.minValue); } }, setMaxValue : function(dt){ this.maxValue = (Ext.isString(dt) ? this.parseDate(dt) : dt); if(this.menu){ this.menu.picker.setMaxDate(this.maxValue); } }, getErrors: function(value) { var errors = Ext.sy.SearchDateField.superclass.getErrors.apply(this, arguments); value = this.formatDate(value || this.processValue(this.getRawValue())); if (value.length < 1) { return errors; } var svalue = value; value = this.parseDate(value); if (!value) { errors.push(String.format(this.invalidText, svalue, this.format)); return errors; } var time = value.getTime(); if (this.minValue && time < this.minValue.clearTime().getTime()) { errors.push(String.format(this.minText, this.formatDate(this.minValue))); } if (this.maxValue && time > this.maxValue.clearTime().getTime()) { errors.push(String.format(this.maxText, this.formatDate(this.maxValue))); } if (this.disabledDays) { var day = value.getDay(); for(var i = 0; i < this.disabledDays.length; i++) { if (day === this.disabledDays) { errors.push(this.disabledDaysText); break; } } } var fvalue = this.formatDate(value); if (this.disabledDatesRE && this.disabledDatesRE.test(fvalue)) { errors.push(String.format(this.disabledDatesText, fvalue)); } return errors; }, validateBlur : function(){ return !this.menu || !this.menu.isVisible(); }, getValue : function(){ return this.parseDate(Ext.sy.SearchDateField.superclass.getValue.call(this)) || ""; }, setValue : function(date){ return Ext.sy.SearchDateField.superclass.setValue.call(this, this.formatDate(this.parseDate(date))); }, parseDate : function(value) { if(!value || Ext.isDate(value)){ return value; } var v = this.safeParse(value, this.format), af = this.altFormats, afa = this.altFormatsArray; if (!v && af) { afa = afa || af.split("|"); for (var i = 0, len = afa.length; i < len && !v; i++) { v = this.safeParse(value, afa); } } return v; }, onDestroy : function(){ Ext.destroy(this.menu, this.keyNav); Ext.sy.SearchDateField.superclass.onDestroy.call(this); }, formatDate : function(date){ return Ext.isDate(date) ? date.dateFormat(this.format) : date; }, onTrigger1Click : function(){ if(this.disabled){ return; } if(this.menu == null){ this.menu = new Ext.menu.DateMenu({ hideOnClick: false, focusOnSelect: false }); } this.onFocus(); Ext.apply(this.menu.picker,{ minDate : this.minValue, maxDate : this.maxValue, disabledDatesRE : this.disabledDatesRE, disabledDatesText : this.disabledDatesText, disabledDays : this.disabledDays, disabledDaysText : this.disabledDaysText, format : this.format, showToday : this.showToday, startDay: this.startDay, minText : String.format(this.minText, this.formatDate(this.minValue)), maxText : String.format(this.maxText, this.formatDate(this.maxValue)) }); this.menu.picker.setValue(this.getValue() || new Date()); this.menu.show(this.el, "tl-bl?"); this.menuEvents('on'); },onTrigger2Click : function(){this.el.dom.value = ''; this.triggers.hide();}, menuEvents: function(method){ this.menu('select', this.onSelect, this); this.menu('hide', this.onMenuHide, this); this.menu('show', this.onFocus, this); }, onSelect: function(m, d){ this.setValue(d); this.fireEvent('select', this, d); this.menu.hide(); this.triggers.show(); }, onMenuHide: function(){ this.focus(false, 60); this.menuEvents('un'); }, beforeBlur : function(){ var v = this.parseDate(this.getRawValue()); if(v){ this.setValue(v); } }});Ext.reg('searchdatefield', Ext.sy.SearchDateField); 四。总结
各位童鞋现在是否可以自己封装如该控件的下拉框检索控件等等了呢？
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