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这一年都在使用ExtJS 5.0开发系统,经常会遇到的一个场景就是时间日期的选择了。比如说,预定场地的时候就必须由用户选择预定的日期和时间。
可惜的是,ExtJS 5.0没有自带一个可以同时选择日期时间的控件(ExtJS 6.0已经推出了,还没用过,不知道加入这种控件没~),通常偷懒的做法就是,先放一个日期控件,然后再放一个时间控件。用户使用的时候,先选择日期,再选择时间,最后用很别扭的办法将日期和时间拼装起来。
理想的状态是,提供给用户一个可以同时选择时间和日期的控件,并且数据是“日期+时间”的Date类型。既符合使用习惯,又方便开发。
故第二种偷懒的方式是,从网上扒一个现成的解决方案来用。此法最快,但是在过程中遇到了一个问题,现成可以搜索到的方案都有点旧,大多数还停留在ExtJS 2.X、3.X和4.X版本,自从ExtJS从4升级到5之后,API改变了许多,所以并不能直接使用。
最后只能是自己写一个。准确来说,应该是拿了一份现成的代码修改,这个代码在ExtJS 5.0下不能正确运行,但是需要修改的量非常少,所以很感谢这份现成代码的作者,可惜没有署名,不知道是谁。
ExtJS 5.0上测试成功,实现方法是:
Ext.define(‘MyApp.ux.DateTimeField.TimePickerField‘, {
extend: ‘Ext.form.field.Base‘,
alias: ‘widget.timepicker‘,
alternateClassName: ‘Ext.form.field.TimePickerField‘,
requires: [‘Ext.form.field.Number‘],
inputType: ‘text‘,
fieldLabel: ‘时间‘,
labelWidth: 40,
style: ‘padding:4px 0; margin: 0; ‘,
value: null,
spinnerCfg: {
width: 50,
},
initComponent: function() {
var me = this;
me.value = me.value || Ext.Date.format(new Date(), ‘H:i:s‘);
me.callParent(arguments);
me.spinners = [];
var cfg = Ext.apply({}, me.spinnerCfg, {
// readOnly: me.readOnly,
disabled: me.disabled,
style: ‘float: left‘,
listeners: {
change: {
fn: me.onSpinnerChange,
scope: me
}
}
});
me.hoursSpinner = Ext.create(‘Ext.form.field.Number‘, Ext.apply({}, cfg, {
// minValue: -1,
// maxValue: 24,
minNum: 0,
maxNum: 23,
}));
me.minutesSpinner = Ext.create(‘Ext.form.field.Number‘, Ext.apply({}, cfg, {
// minValue: -1,
// maxValue: 60,
minNum: 0,
maxNum: 59,
}));
me.secondsSpinner = Ext.create(‘Ext.form.field.Number‘, Ext.apply({}, cfg, {
// minValue: -1,
// MAXVALUE: 60,
minNum: 0,
maxNum: 59,
}));
me.spinners.push(me.hoursSpinner, me.minutesSpinner, me.secondsSpinner);
},
onRender: function() {
var me = this, spinnerWrapDom, spinnerWrap;
me.callParent(arguments);
spinnerWrap = Ext.get(Ext.DomQuery.selectNode(‘div‘, this.el.dom));
me.callSpinnersFunction(‘render‘, spinnerWrap);
this.el.dom.getElementsByTagName(‘input‘)[0].style.display = ‘none‘;
var newTimePicker = Ext.DomHelper.append(spinnerWrap, {
tag: ‘div‘,
cls: ‘x-form-clear-left‘
}, true);
this.setRawValue(this.value);
},
_valueSplit: function(v) {
if(Ext.isDate(v)) {
v = Ext.Date.format(v, ‘H:i:s‘);
}
var split = v.split(‘:‘);
return {
h: split.length > 0 ? split[0] : 0,
m: split.length > 1 ? split[1] : 0,
s: split.length > 2 ? split[2] : 0
};
},
onSpinnerChange: function() {
if(!this.rendered) {
return;
}
//限制时间范围
var args = arguments; //this, newValue, oldValue, eOpts
args[0].setValue( (args[1]>args[0].maxNum) ? args[0].minNum : args[0].value );
args[0].setValue( (args[1]<args[0].minNum) ? args[0].maxNum : args[0].value );
this.fireEvent(‘change‘, this, this.getValue(), this.getRawValue());
},
// 依次调用各输入框函数, call each spinner‘s function
callSpinnersFunction: function(funName, args) {
for(var i = 0; i < this.spinners.length; i++) {
if( this.spinners[i][funName] != null && this.spinners[i][funName] != undefined ){
this.spinners[i][funName](args);
}
}
},
getRawValue: function() {
if(!this.rendered) {
var date = this.value || new Date();
return this._valueSplit(date);
}
else {
return {
h: this.hoursSpinner.getValue(),
m: this.minutesSpinner.getValue(),
s: this.secondsSpinner.getValue()
};
}
},
setRawValue: function(value) {
var v = this._valueSplit(value);
if(this.hoursSpinner) {
this.hoursSpinner.setValue(v.h);
this.minutesSpinner.setValue(v.m);
this.secondsSpinner.setValue(v.s);
}
},
getValue: function() {
var v = this.getRawValue();
return Ext.String.leftPad(v.h, 2, ‘0‘) + ‘:‘ + Ext.String.leftPad(v.m, 2, ‘0‘) + ‘:‘
+ Ext.String.leftPad(v.s, 2, ‘0‘);
},
setValue: function(value) {
this.value = Ext.isDate(value) ? Ext.Date.format(value, ‘H:i:s‘) : value;
if(!this.rendered) {
return;
}
this.setRawValue(this.value);
this.validate();
},
disable: function() {
this.callParent(arguments);
this.callSpinnersFunction(‘disable‘, arguments);
},
enable: function() {
this.callParent(arguments);
this.callSpinnersFunction(‘enable‘, arguments);
},
setReadOnly: function() {
this.callParent(arguments);
this.callSpinnersFunction(‘setReadOnly‘, arguments);
},
clearInvalid: function() {
this.callParent(arguments);
this.callSpinnersFunction(‘clearInvalid‘, arguments);
},
isValid: function(preventMark) {
return this.hoursSpinner.isValid(preventMark) && this.minutesSpinner.isValid(preventMark)
&& this.secondsSpinner.isValid(preventMark);
},
validate: function() {
return this.hoursSpinner.validate() && this.minutesSpinner.validate() && this.secondsSpinner.validate();
}
});
Ext.define(‘MyApp.ux.DateTimeField.DateTimePicker‘, {
extend: ‘Ext.picker.Date‘,
alias: ‘widget.datetimepicker‘,
requires: [‘MyApp.ux.DateTimeField.TimePickerField‘,‘Ext.dom.Query‘],
todayText: ‘现在‘,
timeLabel: ‘时间‘,
buttonText: ‘确定‘,
initComponent: function() {
this.callParent();
this.value = this.value || new Date();
},
onRender: function(container, position) {
this.callParent(arguments);
var me = this;
//确认按键
var btnCfg = Ext.apply({}, {}, {
style: ‘center‘,
listeners: {
click: {
fn: function(){
this.confirmDate();
},
scope: me
}
}
});
me.confirmBtn = Ext.create(‘Ext.Button‘, Ext.apply({}, btnCfg, {
text: ‘确认‘,
}));
me.confirmBtn.render(this.el.child(‘div div.x-datepicker-footer‘));
if(!this.timefield) {
this.timefield = Ext.create(‘MyApp.ux.DateTimeField.TimePickerField‘, {
fieldLabel: this.timeLabel,
labelWidth: 40,
value: Ext.Date.format(this.value, ‘H:i:s‘),
});
}
this.timefield.ownerCt = this;//指定范围
this.timefield.on(‘change‘, this.timeChange, this);//
var table = Ext.get(Ext.DomQuery.selectNode(‘table‘, this.el.dom));
var tfEl = Ext.DomHelper.insertAfter(table, {
tag: ‘div‘,
style: ‘border:0px;‘,
children: [{
tag: ‘div‘,
cls: ‘x-datepicker-footer ux-timefield‘
}]
}, true);
this.timefield.render(this.el.child(‘div div.ux-timefield‘));
var p = this.getEl().parent(‘div.x-layer‘);
if(p) {
p.setStyle("height", p.getHeight() + 31);
}
},
// listener 时间域修改, timefield change
timeChange: function(tf, time, rawtime) {
this.value = this.fillDateTime(this.value);
},
fillDateTime: function(value) {
if(this.timefield) {
var rawtime = this.timefield.getRawValue();
value.setHours(rawtime.h);
value.setMinutes(rawtime.m);
value.setSeconds(rawtime.s);
}
return value;
},
changeTimeFiledValue: function(value) {
this.timefield.un(‘change‘, this.timeChange, this);
this.timefield.setValue(this.value);
this.timefield.on(‘change‘, this.timeChange, this);
},
setValue: function(value) {
this.value = value;
this.changeTimeFiledValue(value);
return this.update(this.value);
},
getValue: function() {
return this.fillDateTime(this.value);
},
handleDateClick: function(e, t) {
var me = this,
handler = me.handler;
e.stopEvent();
if(!me.disabled && t.dateValue && !Ext.fly(t.parentNode).hasCls(me.disabledCellCls)) {
me.doCancelFocus = me.focusOnSelect === false;
me.setValue(this.fillDateTime(new Date(t.dateValue)));
delete me.doCancelFocus;
me.fireEvent(‘select‘, me, me.value);
if(handler) {
handler.call(me.scope || me, me, me.value);
}
me.onSelect();
}
},
//确认按键
confirmDate: function(){
var that = this;
that.fireEvent(‘select‘, that, that.value);//模拟用户选择
that.onSelect();
},
selectToday: function() {
var me = this,
btn = me.todayBtn,
handler = me.handler;
if(btn && !btn.disabled) {
me.setValue(new Date());
me.fireEvent(‘select‘, me, me.value);
if(handler) {
handler.call(me.scope || me, me, me.value);
}
me.onSelect();
}
return me;
}
});
Ext.define(‘MyApp.ux.DateTimeField.DateTimeField‘, {
extend: ‘Ext.form.field.Date‘,
alias: ‘widget.datetimefield‘,
requires: [‘MyApp.ux.DateTimeField.DateTimePicker‘],
initComponent: function() {
this.format = this.format;
this.callParent();
},
format: ‘Y-m-d H:i:s‘,
createPicker: function() {
var me = this,
format = Ext.String.format;
return Ext.create(‘MyApp.ux.DateTimeField.DateTimePicker‘, {
ownerCt: me.ownerCt,
// renderTo: document.body,
floating: true,
// hidden: true,
focusOnShow: true,
minDate: me.minValue,
maxDate: me.maxValue,
disabledDatesRE: me.disabledDatesRE,
disabledDatesText: me.disabledDatesText,
disabledDays: me.disabledDays,
disabledDaysText: me.disabledDaysText,
format: me.format,
showToday: me.showToday,
startDay: me.startDay,
minText: format(me.minText, me.formatDate(me.minValue)),
maxText: format(me.maxText, me.formatDate(me.maxValue)),
listeners: {
scope: me,
select: me.onSelect
},
keyNavConfig: {
esc: function() {
me.collapse();
}
}
});
}
});
将以上代码拷到ux当中,调用的时候可以Ext.create之,也可以require之后直接使用alias。
效果嘛,就像下图那样:
介绍完毕。
谢谢大家。
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原文地址:http://blog.csdn.net/yangholmes_blog/article/details/51330555