www.gusucode.com > 一个基于extjs的强大聊天插件源码程序 > 一个基于extjs的强大聊天插件/extjame/ext-jame/js/ext2/source/widgets/DatePicker.js
/*
* Ext JS Library 2.0.2
* Copyright(c) 2006-2008, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
/**
* @class Ext.DatePicker
* @extends Ext.Component
* Simple date picker class.
* @constructor
* Create a new DatePicker
* @param {Object} config The config object
*/
Ext.DatePicker = Ext.extend(Ext.Component, {
/**
* @cfg {String} todayText
* The text to display on the button that selects the current date (defaults to "Today")
*/
todayText : "Today",
/**
* @cfg {String} okText
* The text to display on the ok button
*/
okText : " OK ", //   to give the user extra clicking room
/**
* @cfg {String} cancelText
* The text to display on the cancel button
*/
cancelText : "Cancel",
/**
* @cfg {String} todayTip
* The tooltip to display for the button that selects the current date (defaults to "{current date} (Spacebar)")
*/
todayTip : "{0} (Spacebar)",
/**
* @cfg {Date} minDate
* Minimum allowable date (JavaScript date object, defaults to null)
*/
minDate : null,
/**
* @cfg {Date} maxDate
* Maximum allowable date (JavaScript date object, defaults to null)
*/
maxDate : null,
/**
* @cfg {String} minText
* The error text to display if the minDate validation fails (defaults to "This date is before the minimum date")
*/
minText : "This date is before the minimum date",
/**
* @cfg {String} maxText
* The error text to display if the maxDate validation fails (defaults to "This date is after the maximum date")
*/
maxText : "This date is after the maximum date",
/**
* @cfg {String} format
* The default date format string which can be overriden for localization support. The format must be
* valid according to {@link Date#parseDate} (defaults to 'm/d/y').
*/
format : "m/d/y",
/**
* @cfg {Array} disabledDays
* An array of days to disable, 0-based. For example, [0, 6] disables Sunday and Saturday (defaults to null).
*/
disabledDays : null,
/**
* @cfg {String} disabledDaysText
* The tooltip to display when the date falls on a disabled day (defaults to "")
*/
disabledDaysText : "",
/**
* @cfg {RegExp} disabledDatesRE
* JavaScript regular expression used to disable a pattern of dates (defaults to null)
*/
disabledDatesRE : null,
/**
* @cfg {String} disabledDatesText
* The tooltip text to display when the date falls on a disabled date (defaults to "")
*/
disabledDatesText : "",
/**
* @cfg {Boolean} constrainToViewport
* True to constrain the date picker to the viewport (defaults to true)
*/
constrainToViewport : true,
/**
* @cfg {Array} monthNames
* An array of textual month names which can be overriden for localization support (defaults to Date.monthNames)
*/
monthNames : Date.monthNames,
/**
* @cfg {Array} dayNames
* An array of textual day names which can be overriden for localization support (defaults to Date.dayNames)
*/
dayNames : Date.dayNames,
/**
* @cfg {String} nextText
* The next month navigation button tooltip (defaults to 'Next Month (Control+Right)')
*/
nextText: 'Next Month (Control+Right)',
/**
* @cfg {String} prevText
* The previous month navigation button tooltip (defaults to 'Previous Month (Control+Left)')
*/
prevText: 'Previous Month (Control+Left)',
/**
* @cfg {String} monthYearText
* The header month selector tooltip (defaults to 'Choose a month (Control+Up/Down to move years)')
*/
monthYearText: 'Choose a month (Control+Up/Down to move years)',
/**
* @cfg {Number} startDay
* Day index at which the week should begin, 0-based (defaults to 0, which is Sunday)
*/
startDay : 0,
initComponent : function(){
Ext.DatePicker.superclass.initComponent.call(this);
this.value = this.value ?
this.value.clearTime() : new Date().clearTime();
this.addEvents(
/**
* @event select
* Fires when a date is selected
* @param {DatePicker} this
* @param {Date} date The selected date
*/
'select'
);
if(this.handler){
this.on("select", this.handler, this.scope || this);
}
this.initDisabledDays();
},
// private
initDisabledDays : function(){
if(!this.disabledDatesRE && this.disabledDates){
var dd = this.disabledDates;
var re = "(?:";
for(var i = 0; i < dd.length; i++){
re += dd[i];
if(i != dd.length-1) re += "|";
}
this.disabledDatesRE = new RegExp(re + ")");
}
},
/**
* Sets the value of the date field
* @param {Date} value The date to set
*/
setValue : function(value){
var old = this.value;
this.value = value.clearTime(true);
if(this.el){
this.update(this.value);
}
},
/**
* Gets the current selected value of the date field
* @return {Date} The selected date
*/
getValue : function(){
return this.value;
},
// private
focus : function(){
if(this.el){
this.update(this.activeDate);
}
},
// private
onRender : function(container, position){
var m = [
'<table cellspacing="0">',
'<tr><td class="x-date-left"><a href="#" title="', this.prevText ,'"> </a></td><td class="x-date-middle" align="center"></td><td class="x-date-right"><a href="#" title="', this.nextText ,'"> </a></td></tr>',
'<tr><td colspan="3"><table class="x-date-inner" cellspacing="0"><thead><tr>'];
var dn = this.dayNames;
for(var i = 0; i < 7; i++){
var d = this.startDay+i;
if(d > 6){
d = d-7;
}
m.push("<th><span>", dn[d].substr(0,1), "</span></th>");
}
m[m.length] = "</tr></thead><tbody><tr>";
for(var i = 0; i < 42; i++) {
if(i % 7 == 0 && i != 0){
m[m.length] = "</tr><tr>";
}
m[m.length] = '<td><a href="#" hidefocus="on" class="x-date-date" tabIndex="1"><em><span></span></em></a></td>';
}
m[m.length] = '</tr></tbody></table></td></tr><tr><td colspan="3" class="x-date-bottom" align="center"></td></tr></table><div class="x-date-mp"></div>';
var el = document.createElement("div");
el.className = "x-date-picker";
el.innerHTML = m.join("");
container.dom.insertBefore(el, position);
this.el = Ext.get(el);
this.eventEl = Ext.get(el.firstChild);
new Ext.util.ClickRepeater(this.el.child("td.x-date-left a"), {
handler: this.showPrevMonth,
scope: this,
preventDefault:true,
stopDefault:true
});
new Ext.util.ClickRepeater(this.el.child("td.x-date-right a"), {
handler: this.showNextMonth,
scope: this,
preventDefault:true,
stopDefault:true
});
this.eventEl.on("mousewheel", this.handleMouseWheel, this);
this.monthPicker = this.el.down('div.x-date-mp');
this.monthPicker.enableDisplayMode('block');
var kn = new Ext.KeyNav(this.eventEl, {
"left" : function(e){
e.ctrlKey ?
this.showPrevMonth() :
this.update(this.activeDate.add("d", -1));
},
"right" : function(e){
e.ctrlKey ?
this.showNextMonth() :
this.update(this.activeDate.add("d", 1));
},
"up" : function(e){
e.ctrlKey ?
this.showNextYear() :
this.update(this.activeDate.add("d", -7));
},
"down" : function(e){
e.ctrlKey ?
this.showPrevYear() :
this.update(this.activeDate.add("d", 7));
},
"pageUp" : function(e){
this.showNextMonth();
},
"pageDown" : function(e){
this.showPrevMonth();
},
"enter" : function(e){
e.stopPropagation();
return true;
},
scope : this
});
this.eventEl.on("click", this.handleDateClick, this, {delegate: "a.x-date-date"});
this.eventEl.addKeyListener(Ext.EventObject.SPACE, this.selectToday, this);
this.el.unselectable();
this.cells = this.el.select("table.x-date-inner tbody td");
this.textNodes = this.el.query("table.x-date-inner tbody span");
this.mbtn = new Ext.Button({
text: " ",
tooltip: this.monthYearText,
renderTo: this.el.child("td.x-date-middle", true)
});
this.mbtn.on('click', this.showMonthPicker, this);
this.mbtn.el.child(this.mbtn.menuClassTarget).addClass("x-btn-with-menu");
var today = (new Date()).dateFormat(this.format);
this.todayBtn = new Ext.Button({
renderTo: this.el.child("td.x-date-bottom", true),
text: String.format(this.todayText, today),
tooltip: String.format(this.todayTip, today),
handler: this.selectToday,
scope: this
});
if(Ext.isIE){
this.el.repaint();
}
this.update(this.value);
},
createMonthPicker : function(){
if(!this.monthPicker.dom.firstChild){
var buf = ['<table border="0" cellspacing="0">'];
for(var i = 0; i < 6; i++){
buf.push(
'<tr><td class="x-date-mp-month"><a href="#">', this.monthNames[i].substr(0, 3), '</a></td>',
'<td class="x-date-mp-month x-date-mp-sep"><a href="#">', this.monthNames[i+6].substr(0, 3), '</a></td>',
i == 0 ?
'<td class="x-date-mp-ybtn" align="center"><a class="x-date-mp-prev"></a></td><td class="x-date-mp-ybtn" align="center"><a class="x-date-mp-next"></a></td></tr>' :
'<td class="x-date-mp-year"><a href="#"></a></td><td class="x-date-mp-year"><a href="#"></a></td></tr>'
);
}
buf.push(
'<tr class="x-date-mp-btns"><td colspan="4"><button type="button" class="x-date-mp-ok">',
this.okText,
'</button><button type="button" class="x-date-mp-cancel">',
this.cancelText,
'</button></td></tr>',
'</table>'
);
this.monthPicker.update(buf.join(''));
this.monthPicker.on('click', this.onMonthClick, this);
this.monthPicker.on('dblclick', this.onMonthDblClick, this);
this.mpMonths = this.monthPicker.select('td.x-date-mp-month');
this.mpYears = this.monthPicker.select('td.x-date-mp-year');
this.mpMonths.each(function(m, a, i){
i += 1;
if((i%2) == 0){
m.dom.xmonth = 5 + Math.round(i * .5);
}else{
m.dom.xmonth = Math.round((i-1) * .5);
}
});
}
},
showMonthPicker : function(){
this.createMonthPicker();
var size = this.el.getSize();
this.monthPicker.setSize(size);
this.monthPicker.child('table').setSize(size);
this.mpSelMonth = (this.activeDate || this.value).getMonth();
this.updateMPMonth(this.mpSelMonth);
this.mpSelYear = (this.activeDate || this.value).getFullYear();
this.updateMPYear(this.mpSelYear);
this.monthPicker.slideIn('t', {duration:.2});
},
updateMPYear : function(y){
this.mpyear = y;
var ys = this.mpYears.elements;
for(var i = 1; i <= 10; i++){
var td = ys[i-1], y2;
if((i%2) == 0){
y2 = y + Math.round(i * .5);
td.firstChild.innerHTML = y2;
td.xyear = y2;
}else{
y2 = y - (5-Math.round(i * .5));
td.firstChild.innerHTML = y2;
td.xyear = y2;
}
this.mpYears.item(i-1)[y2 == this.mpSelYear ? 'addClass' : 'removeClass']('x-date-mp-sel');
}
},
updateMPMonth : function(sm){
this.mpMonths.each(function(m, a, i){
m[m.dom.xmonth == sm ? 'addClass' : 'removeClass']('x-date-mp-sel');
});
},
selectMPMonth: function(m){
},
onMonthClick : function(e, t){
e.stopEvent();
var el = new Ext.Element(t), pn;
if(el.is('button.x-date-mp-cancel')){
this.hideMonthPicker();
}
else if(el.is('button.x-date-mp-ok')){
this.update(new Date(this.mpSelYear, this.mpSelMonth, (this.activeDate || this.value).getDate()));
this.hideMonthPicker();
}
else if(pn = el.up('td.x-date-mp-month', 2)){
this.mpMonths.removeClass('x-date-mp-sel');
pn.addClass('x-date-mp-sel');
this.mpSelMonth = pn.dom.xmonth;
}
else if(pn = el.up('td.x-date-mp-year', 2)){
this.mpYears.removeClass('x-date-mp-sel');
pn.addClass('x-date-mp-sel');
this.mpSelYear = pn.dom.xyear;
}
else if(el.is('a.x-date-mp-prev')){
this.updateMPYear(this.mpyear-10);
}
else if(el.is('a.x-date-mp-next')){
this.updateMPYear(this.mpyear+10);
}
},
onMonthDblClick : function(e, t){
e.stopEvent();
var el = new Ext.Element(t), pn;
if(pn = el.up('td.x-date-mp-month', 2)){
this.update(new Date(this.mpSelYear, pn.dom.xmonth, (this.activeDate || this.value).getDate()));
this.hideMonthPicker();
}
else if(pn = el.up('td.x-date-mp-year', 2)){
this.update(new Date(pn.dom.xyear, this.mpSelMonth, (this.activeDate || this.value).getDate()));
this.hideMonthPicker();
}
},
hideMonthPicker : function(disableAnim){
if(this.monthPicker){
if(disableAnim === true){
this.monthPicker.hide();
}else{
this.monthPicker.slideOut('t', {duration:.2});
}
}
},
// private
showPrevMonth : function(e){
this.update(this.activeDate.add("mo", -1));
},
// private
showNextMonth : function(e){
this.update(this.activeDate.add("mo", 1));
},
// private
showPrevYear : function(){
this.update(this.activeDate.add("y", -1));
},
// private
showNextYear : function(){
this.update(this.activeDate.add("y", 1));
},
// private
handleMouseWheel : function(e){
var delta = e.getWheelDelta();
if(delta > 0){
this.showPrevMonth();
e.stopEvent();
} else if(delta < 0){
this.showNextMonth();
e.stopEvent();
}
},
// private
handleDateClick : function(e, t){
e.stopEvent();
if(t.dateValue && !Ext.fly(t.parentNode).hasClass("x-date-disabled")){
this.setValue(new Date(t.dateValue));
this.fireEvent("select", this, this.value);
}
},
// private
selectToday : function(){
this.setValue(new Date().clearTime());
this.fireEvent("select", this, this.value);
},
// private
update : function(date){
var vd = this.activeDate;
this.activeDate = date;
if(vd && this.el){
var t = date.getTime();
if(vd.getMonth() == date.getMonth() && vd.getFullYear() == date.getFullYear()){
this.cells.removeClass("x-date-selected");
this.cells.each(function(c){
if(c.dom.firstChild.dateValue == t){
c.addClass("x-date-selected");
setTimeout(function(){
try{c.dom.firstChild.focus();}catch(e){}
}, 50);
return false;
}
});
return;
}
}
var days = date.getDaysInMonth();
var firstOfMonth = date.getFirstDateOfMonth();
var startingPos = firstOfMonth.getDay()-this.startDay;
if(startingPos <= this.startDay){
startingPos += 7;
}
var pm = date.add("mo", -1);
var prevStart = pm.getDaysInMonth()-startingPos;
var cells = this.cells.elements;
var textEls = this.textNodes;
days += startingPos;
// convert everything to numbers so it's fast
var day = 86400000;
var d = (new Date(pm.getFullYear(), pm.getMonth(), prevStart)).clearTime();
var today = new Date().clearTime().getTime();
var sel = date.clearTime().getTime();
var min = this.minDate ? this.minDate.clearTime() : Number.NEGATIVE_INFINITY;
var max = this.maxDate ? this.maxDate.clearTime() : Number.POSITIVE_INFINITY;
var ddMatch = this.disabledDatesRE;
var ddText = this.disabledDatesText;
var ddays = this.disabledDays ? this.disabledDays.join("") : false;
var ddaysText = this.disabledDaysText;
var format = this.format;
var setCellClass = function(cal, cell){
cell.title = "";
var t = d.getTime();
cell.firstChild.dateValue = t;
if(t == today){
cell.className += " x-date-today";
cell.title = cal.todayText;
}
if(t == sel){
cell.className += " x-date-selected";
setTimeout(function(){
try{cell.firstChild.focus();}catch(e){}
}, 50);
}
// disabling
if(t < min) {
cell.className = " x-date-disabled";
cell.title = cal.minText;
return;
}
if(t > max) {
cell.className = " x-date-disabled";
cell.title = cal.maxText;
return;
}
if(ddays){
if(ddays.indexOf(d.getDay()) != -1){
cell.title = ddaysText;
cell.className = " x-date-disabled";
}
}
if(ddMatch && format){
var fvalue = d.dateFormat(format);
if(ddMatch.test(fvalue)){
cell.title = ddText.replace("%0", fvalue);
cell.className = " x-date-disabled";
}
}
};
var i = 0;
for(; i < startingPos; i++) {
textEls[i].innerHTML = (++prevStart);
d.setDate(d.getDate()+1);
cells[i].className = "x-date-prevday";
setCellClass(this, cells[i]);
}
for(; i < days; i++){
intDay = i - startingPos + 1;
textEls[i].innerHTML = (intDay);
d.setDate(d.getDate()+1);
cells[i].className = "x-date-active";
setCellClass(this, cells[i]);
}
var extraDays = 0;
for(; i < 42; i++) {
textEls[i].innerHTML = (++extraDays);
d.setDate(d.getDate()+1);
cells[i].className = "x-date-nextday";
setCellClass(this, cells[i]);
}
this.mbtn.setText(this.monthNames[date.getMonth()] + " " + date.getFullYear());
if(!this.internalRender){
var main = this.el.dom.firstChild;
var w = main.offsetWidth;
this.el.setWidth(w + this.el.getBorderWidth("lr"));
Ext.fly(main).setWidth(w);
this.internalRender = true;
// opera does not respect the auto grow header center column
// then, after it gets a width opera refuses to recalculate
// without a second pass
if(Ext.isOpera && !this.secondPass){
main.rows[0].cells[1].style.width = (w - (main.rows[0].cells[0].offsetWidth+main.rows[0].cells[2].offsetWidth)) + "px";
this.secondPass = true;
this.update.defer(10, this, [date]);
}
}
},
// private
beforeDestroy : function() {
this.mbtn.destroy();
this.todayBtn.destroy();
}
/**
* @cfg {String} autoEl @hide
*/
});
Ext.reg('datepicker', Ext.DatePicker);