/*
* Ext GWT - Ext for GWT
* Copyright(c) 2007, 2008, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
package com.extjs.gxt.ui.client.widget;
import java.util.Date;
import com.extjs.gxt.ui.client.Events;
import com.extjs.gxt.ui.client.GXT;
import com.extjs.gxt.ui.client.XDOM;
import com.extjs.gxt.ui.client.Style.Direction;
import com.extjs.gxt.ui.client.Style.HorizontalAlignment;
import com.extjs.gxt.ui.client.Style.VerticalAlignment;
import com.extjs.gxt.ui.client.core.CompositeElement;
import com.extjs.gxt.ui.client.core.CompositeFunction;
import com.extjs.gxt.ui.client.core.El;
import com.extjs.gxt.ui.client.event.ComponentEvent;
import com.extjs.gxt.ui.client.event.DatePickerEvent;
import com.extjs.gxt.ui.client.event.FxEvent;
import com.extjs.gxt.ui.client.event.Listener;
import com.extjs.gxt.ui.client.event.SelectionListener;
import com.extjs.gxt.ui.client.fx.FxConfig;
import com.extjs.gxt.ui.client.messages.MyMessages;
import com.extjs.gxt.ui.client.util.DateWrapper;
import com.extjs.gxt.ui.client.util.Size;
import com.extjs.gxt.ui.client.widget.button.Button;
import com.extjs.gxt.ui.client.widget.button.IconButton;
import com.extjs.gxt.ui.client.widget.layout.TableData;
import com.google.gwt.core.client.GWT;
import com.google.gwt.i18n.client.constants.DateTimeConstants;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.Grid;
import com.google.gwt.user.client.ui.SourcesTableEvents;
import com.google.gwt.user.client.ui.TableListener;
/**
* Simple date picker.
*
* <dt><b>Events:</b></dt>
*
* <dd><b>Select</b> : DatePickerEvent(datePicker, date)<br>
* <div>Fires when a date is selected.</div>
* <ul>
* <li>datePicker : this</li>
* <li>date : the selected date</li>
* </ul>
* </dd> </dt>
*/
public class DatePicker extends BoxComponent {
/**
* DatePicker messages.
*/
public class DatePickerMessages {
private String todayText;
private String okText = " OK ";
private String cancelText;
private String todayTip;
private String minText;
private String maxText;
private String prevText;
private String nextText;
private String monthYearText;
/**
* Sets the text to display on the cancel button.
*
* @return the cancel button text
*/
public String getCancelText() {
return cancelText;
}
/**
* Returns the max text.
*
* @return the max text
*/
public String getMaxText() {
return maxText;
}
/**
* Returns the min text.
*
* @return the min text
*/
public String getMinText() {
return minText;
}
/**
* Returns the month year text.
*
* @return the month year text
*/
public String getMonthYearText() {
return monthYearText;
}
/**
* Returns the next text.
*
* @return the next text
*/
public String getNextText() {
return nextText;
}
/**
* Returns the ok text.
*
* @return the ok text
*/
public String getOkText() {
return okText;
}
/**
* Returns the prev text.
*
* @return the prev text
*/
public String getPrevText() {
return prevText;
}
/**
* Returns the today text.
*
* @return the today text
*/
public String getTodayText() {
return todayText;
}
/**
* Returns the today tip.
*
* @return the tip
*/
public String getTodayTip() {
return todayTip;
}
/**
* Sets the cance text (default to "Cancel").
*
* @param cancelText the cancel text
*/
public void setCancelText(String cancelText) {
this.cancelText = cancelText;
}
/**
* Sets the error text to display if the maxDate validation fails (defaults
* to "This date is after the maximum date").
*
* @param maxText the max error text
*/
public void setMaxText(String maxText) {
this.maxText = maxText;
}
/**
* Sets the error text to display if the minDate validation fails (defaults
* to "This date is before the minimum date").
*
* @param minText the min error text
*/
public void setMinText(String minText) {
this.minText = minText;
}
/**
* Sets the header month selector tooltip (defaults to 'Choose a month
* (Control+Up/Down to move years)').
*
* @param monthYearText the month year text
*/
public void setMonthYearText(String monthYearText) {
this.monthYearText = monthYearText;
}
/**
* Sets the next month navigation button tooltip (defaults to 'Next Month
* (Control+Right)').
*
* @param nextText the next text
*/
public void setNextText(String nextText) {
this.nextText = nextText;
}
/**
* Sets the text to display on the ok button.
*
* @param okText the ok text
*/
public void setOkText(String okText) {
this.okText = okText;
}
/**
* Sets the previous month navigation button tooltip (defaults to 'Previous
* Month (Control+Left)').
*
* @param prevText the prev text
*/
public void setPrevText(String prevText) {
this.prevText = prevText;
}
/**
* Sets the text to display on the button that selects the current date
* (defaults to "Today").
*
* @param todayText the today text
*/
public void setTodayText(String todayText) {
this.todayText = todayText;
}
/**
* Sets the tooltip to display for the button that selects the current date
* (defaults to "{current date} (Spacebar)").
*
* @param todayTip the today tool tip
*/
public void setTodayTip(String todayTip) {
this.todayTip = todayTip;
}
}
class Header extends Component {
protected void doAttachChildren() {
ComponentHelper.doAttach(monthBtn);
prevBtn.onAttach();
nextBtn.onAttach();
}
protected void doDetachChildren() {
ComponentHelper.doDetach(monthBtn);
prevBtn.onDetach();
nextBtn.onDetach();
}
@Override
protected void onRender(Element target, int index) {
StringBuffer sb = new StringBuffer();
sb.append("<table width=100% cellpadding=0 cellspacing=0><tr>");
sb.append("<td class=x-date-left></td><td class=x-date-middle align=center></td>");
sb.append("<td class=x-date-right></td></tr></table>");
setElement(XDOM.create(sb.toString()));
el().insertInto(target, index);
el().setWidth(175, true);
String pt = messages.getPrevText() != null ? messages.getPrevText()
: myMessages.datePicker_prevText();
String nt = messages.getNextText() != null ? messages.getNextText()
: myMessages.datePicker_nextText();
monthBtn = new Button(" ", new SelectionListener<ComponentEvent>() {
public void componentSelected(ComponentEvent ce) {
showMonthPicker();
}
});
monthBtn.render(el().selectNode(".x-date-middle").dom);
monthBtn.el().child("tr").addStyleName("x-btn-with-menu");
prevBtn = new IconButton("x-date-left-icon", new SelectionListener<ComponentEvent>() {
public void componentSelected(ComponentEvent ce) {
showPrevMonth();
}
});
prevBtn.setToolTip(pt);
prevBtn.render(el().selectNode(".x-date-left").dom);
nextBtn = new IconButton("x-date-right-icon", new SelectionListener<ComponentEvent>() {
public void componentSelected(ComponentEvent ce) {
showNextMonth();
}
});
nextBtn.setToolTip(nt);
nextBtn.render(el().selectNode(".x-date-right").dom);
}
}
protected Button todayBtn;
private int firstDOW;
private Date minDate;
private Date maxDate;
private int startDay;
private long today;
private int mpyear;
private Grid days, grid;
private Component header;
private HorizontalPanel footer;
private DateWrapper activeDate, value;
private int mpSelMonth, mpSelYear;
private Button monthBtn;
private Element[] cells;
private Element[] textNodes;
private IconButton prevBtn, nextBtn;
private CompositeElement mpMonths, mpYears;
private El monthPicker;
private DateTimeConstants constants = (DateTimeConstants) GWT.create(DateTimeConstants.class);
private MyMessages myMessages = (MyMessages) GWT.create(MyMessages.class);
private DatePickerMessages messages;
/**
* Creates a new date picker.
*/
public DatePicker() {
baseStyle = "x-date-picker";
messages = new DatePickerMessages();
}
@Override
public void focus() {
super.focus();
{
update(activeDate);
}
}
/**
* Returns the field's maximum allowed date.
*
* @return the max date
*/
public Date getMaxDate() {
return maxDate;
}
/**
* Returns the data picker messages.
*
* @return the date picker messages
*/
public DatePickerMessages getMessages() {
return messages;
}
/**
* Returns the picker's minimum data.
*
* @return the min date
*/
public Date getMinDate() {
return minDate;
}
/**
* Returns the picker's start day.
*
* @return the start day
*/
public int getStartDay() {
return startDay;
}
/**
* Gets the current selected value of the date field.
*
* @return the date
*/
public Date getValue() {
return value.asDate();
}
@Override
public void onComponentEvent(ComponentEvent ce) {
super.onComponentEvent(ce);
switch (ce.getEventType()) {
case Event.ONCLICK:
onClick(ce);
return;
}
}
/**
* Sets the picker's maximum allowed date.
*
* @param maxDate the max date
*/
public void setMaxDate(Date maxDate) {
if (maxDate != null) {
maxDate = new DateWrapper(maxDate).clearTime().asDate();
}
this.maxDate = maxDate;
}
/**
* Sets the data picker messages.
*
* @param messages the date picker messages
*/
public void setMessages(DatePickerMessages messages) {
this.messages = messages;
}
/**
* Sets the picker's minimum allowed date.
*
* @param minDate the min date
*/
public void setMinDate(Date minDate) {
if (minDate != null) {
minDate = new DateWrapper(minDate).clearTime().asDate();
}
this.minDate = minDate;
}
/**
* Sets the picker's start day
*
* @param startDay the start day
*/
public void setStartDay(int startDay) {
this.startDay = startDay;
}
/**
* Sets the value of the date field.
*
* @param date the date
*/
public void setValue(Date date) {
setValue(date, false);
}
/**
* Sets the value of the date field.
*
* @param date the date
* @param supressEvent true to spress the select event
*/
public void setValue(Date date, boolean supressEvent) {
this.value = new DateWrapper(date).clearTime();
if (rendered) {
update(value);
}
if (!supressEvent) {
DatePickerEvent de = new DatePickerEvent(this);
de.date = date;
fireEvent(Events.Select, de);
}
}
@Override
protected void doAttachChildren() {
super.doAttachChildren();
header.onAttach();
footer.onAttach();
ComponentHelper.doAttach(grid);
}
@Override
protected void doDetachChildren() {
super.doDetachChildren();
header.onDetach();
footer.onDetach();
ComponentHelper.doDetach(grid);
monthPicker.setVisible(false);
}
protected void onClick(ComponentEvent be) {
be.stopEvent();
El target = be.getTargetEl();
El pn = null;
String cls = target.getStyleName();
if (cls.equals("x-date-left-a")) {
showPrevMonth();
} else if (cls.equals("x-date-right-a")) {
showNextMonth();
}
if ((pn = target.up("td.x-date-mp-month", 2)) != null) {
mpMonths.removeStyleName("x-date-mp-sel");
El elem = target.up("td.x-date-mp-month", 2);
elem.addStyleName("x-date-mp-sel");
mpSelMonth = pn.dom.getPropertyInt("xmonth");
} else if ((pn = target.up("td.x-date-mp-year", 2)) != null) {
mpYears.removeStyleName("x-date-mp-sel");
El elem = target.up("td.x-date-mp-year", 2);
elem.addStyleName("x-date-mp-sel");
mpSelYear = pn.dom.getPropertyInt("xyear");
} else if (target.is("button.x-date-mp-ok")) {
DateWrapper d = new DateWrapper(mpSelYear, mpSelMonth, activeDate.getDate());
update(d);
hideMonthPicker();
} else if (target.is("button.x-date-mp-cancel")) {
hideMonthPicker();
} else if (target.is("a.x-date-mp-prev")) {
updateMPYear(mpyear - 10);
} else if (target.is("a.x-date-mp-next")) {
updateMPYear(mpyear + 10);
}
if (GXT.isSafari) {
focus();
}
}
protected void onDayClick(ComponentEvent ce) {
ce.stopEvent();
El target = ce.getTargetEl();
El e = target.findParent("a", 5);
if (e != null) {
String dt = e.dom.getPropertyString("dateValue");
if (dt != null) {
handleDateClick(e, dt);
return;
}
}
}
@Override
protected void onRender(Element target, int index) {
setElement(DOM.createDiv(), target, index);
if (messages.getMinText() == null) {
messages.setMinText(GXT.MESSAGES.datePicker_minText());
}
if (messages.getMaxText() == null) {
messages.setMaxText(GXT.MESSAGES.datePicker_maxText());
}
if (messages.getTodayText() == null) {
messages.setTodayText(GXT.MESSAGES.datePicker_todayText());
}
header = new Header();
header.render(getElement());
days = new Grid(1, 7);
days.setStyleName("x-date-days");
days.setCellPadding(0);
days.setCellSpacing(0);
days.setBorderWidth(0);
String[] dn = constants.narrowWeekdays();
firstDOW = startDay != 0 ? startDay : Integer.parseInt(constants.firstDayOfTheWeek()) - 1;
days.setHTML(0, 0, "<span>" + dn[(0 + firstDOW) % 7] + "</span>");
days.setHTML(0, 1, "<span>" + dn[(1 + firstDOW) % 7]);
days.setHTML(0, 2, "<span>" + dn[(2 + firstDOW) % 7]);
days.setHTML(0, 3, "<span>" + dn[(3 + firstDOW) % 7]);
days.setHTML(0, 4, "<span>" + dn[(4 + firstDOW) % 7]);
days.setHTML(0, 5, "<span>" + dn[(5 + firstDOW) % 7]);
days.setHTML(0, 6, "<span>" + dn[(6 + firstDOW) % 7]);
grid = new Grid(6, 7);
grid.setStyleName("x-date-inner");
grid.setCellSpacing(0);
grid.setCellPadding(0);
grid.addTableListener(new TableListener() {
public void onCellClicked(SourcesTableEvents sender, int row, int cell) {
Event event = DOM.eventGetCurrentEvent();
ComponentEvent be = new ComponentEvent(DatePicker.this, event);
onDayClick(be);
}
});
for (int row = 0; row < 6; row++) {
for (int col = 0; col < 7; col++) {
grid.setHTML(row, col, "<a href=#><span></span></a>");
}
}
footer = new HorizontalPanel();
footer.setTableWidth("100%");
footer.setHorizontalAlign(HorizontalAlignment.CENTER);
footer.setStyleName("x-date-bottom");
if (GXT.isIE) {
footer.setWidth(175);
}
todayBtn = new Button(messages.getTodayText(), new SelectionListener<ComponentEvent>() {
public void componentSelected(ComponentEvent ce) {
selectToday();
}
});
footer.add(todayBtn, new TableData(HorizontalAlignment.CENTER, VerticalAlignment.MIDDLE));
monthPicker = new El(DOM.createDiv());
monthPicker.dom.setClassName("x-date-mp");
getElement().appendChild(header.getElement());
getElement().appendChild(days.getElement());
getElement().appendChild(grid.getElement());
getElement().appendChild(footer.getElement());
getElement().appendChild(monthPicker.dom);
el().setWidth(175);
cells = el().select("table.x-date-inner tbody td");
textNodes = el().query("table.x-date-inner tbody span");
activeDate = value != null ? value : new DateWrapper();
update(activeDate);
el().addEventsSunk(Event.ONCLICK);
el().makePositionable();
}
private void createMonthPicker() {
String ok = messages.getOkText() != null ? messages.getOkText()
: myMessages.datePicker_okText();
String cancel = messages.getCancelText() != null ? messages.getCancelText()
: myMessages.datePicker_cancelText();
StringBuffer buf = new StringBuffer();
buf.append("<table border=0 cellspacing=0>");
String[] monthNames = constants.shortMonths();
for (int i = 0; i < 6; i++) {
buf.append("<tr><td class=x-date-mp-month><a href=#>" + monthNames[i] + "</a></td>");
buf.append("<td class='x-date-mp-month x-date-mp-sep'><a href=#>" + monthNames[i + 6]
+ "</a></td>");
if (i == 0) {
buf.append("<td class=x-date-mp-ybtn align=center><a class=x-date-mp-prev href=#></a></td><td class='x-date-mp-ybtn' align=center><a class='x-date-mp-next'></a></td></tr>");
} else {
buf.append("<td class='x-date-mp-year'><a href='#'></a></td><td class='x-date-mp-year'><a href='#'></a></td></tr>");
}
}
buf.append("<tr class=x-date-mp-btns><td colspan='4'><button type='button' class='x-date-mp-ok'>");
buf.append(ok);
buf.append("</button><button type=button class=x-date-mp-cancel>");
buf.append(cancel);
buf.append("</button></td></tr></table>");
monthPicker.update(buf.toString());
mpMonths = new CompositeElement(monthPicker.select("td.x-date-mp-month"));
mpYears = new CompositeElement(monthPicker.select("td.x-date-mp-year"));
mpMonths.each(new CompositeFunction() {
public void doFunction(Element elem, CompositeElement ce, int index) {
index += 1;
if (index % 2 == 0) {
elem.setPropertyInt("xmonth", (int) (5 + (Math.round(index * .5))));
} else {
elem.setPropertyInt("xmonth", (int) (Math.round((index - 1) * .5)));
}
}
});
}
private void handleDateClick(El target, String dt) {
Date d = new Date(Long.valueOf(dt));
if (d != null && !target.getParent().hasStyleName("x-date-disabled")) {
setValue(d);
}
}
private void hideMonthPicker() {
monthPicker.slideOut(Direction.UP, new FxConfig(300, new Listener<FxEvent>() {
public void handleEvent(FxEvent ce) {
monthPicker.setVisible(false);
}
}));
}
private void selectToday() {
setValue(new DateWrapper().asDate());
}
private void setCellStyle(Element cell, Date d, long sel, long min, long max) {
long t = d.getTime();
El cellEl = new El(cell);
cellEl.firstChild().dom.setPropertyString("dateValue", "" + t);
if (t == today) {
cellEl.addStyleName("x-date-today");
cellEl.setTitle(messages.getTodayText());
}
if (t == sel) {
cellEl.addStyleName("x-date-selected");
}
if (t < min) {
cellEl.addStyleName("x-date-disabled");
cellEl.setTitle(messages.getMinText());
}
if (t > max) {
cellEl.addStyleName("x-date-disabled");
cellEl.setTitle(messages.getMaxText());
}
}
private void showMonthPicker() {
createMonthPicker();
Size s = el().getSize(true);
s.height -= 2;
monthPicker.setTop(1);
monthPicker.setSize(s.width, s.height);
monthPicker.firstChild().setSize(s.width, s.height, true);
mpSelMonth = (activeDate != null ? activeDate : value).getMonth();
updateMPMonth(mpSelMonth);
mpSelYear = (activeDate != null ? activeDate : value).getFullYear();
updateMPYear(mpSelYear);
monthPicker.enableDisplayMode("block");
monthPicker.makePositionable(true);
monthPicker.slideIn(Direction.DOWN, FxConfig.NONE);
}
private void showNextMonth() {
update(activeDate.addMonths(1));
}
private void showPrevMonth() {
update(activeDate.addMonths(-1));
}
private void update(DateWrapper date) {
DateWrapper vd = activeDate;
activeDate = date;
if (vd != null && el() != null) {
if (vd.getMonth() == activeDate.getMonth() && vd.getFullYear() == activeDate.getFullYear()) {
}
int days = date.getDaysInMonth();
DateWrapper firstOfMonth = date.getFirstDayOfMonth();
int startingPos = firstOfMonth.getDayInWeek() - firstDOW;
if (startingPos <= startDay) {
startingPos += 7;
}
DateWrapper pm = activeDate.addMonths(-1);
int prevStart = pm.getDaysInMonth() - startingPos;
days += startingPos;
DateWrapper d = new DateWrapper(pm.getFullYear(), pm.getMonth(), prevStart).clearTime();
today = new DateWrapper().clearTime().getTime();
long sel = activeDate.clearTime().getTime();
long min = minDate != null ? new DateWrapper(minDate).getTime() : Long.MIN_VALUE;
long max = maxDate != null ? new DateWrapper(maxDate).getTime() : Long.MAX_VALUE;
int i = 0;
for (; i < startingPos; i++) {
fly(textNodes[i]).update("" + ++prevStart);
d = d.addDays(1);
cells[i].setClassName("x-date-prevday");
setCellStyle(cells[i], d.asDate(), sel, min, max);
}
for (; i < days; i++) {
int intDay = i - startingPos + 1;
fly(textNodes[i]).update("" + intDay);
d = d.addDays(1);
cells[i].setClassName("x-date-active");
setCellStyle(cells[i], d.asDate(), sel, min, max);
}
int extraDays = 0;
for (; i < 42; i++) {
fly(textNodes[i]).update("" + ++extraDays);
d = d.addDays(1);
cells[i].setClassName("x-date-nextday");
setCellStyle(cells[i], d.asDate(), sel, min, max);
}
int month = activeDate.getMonth();
monthBtn.setText(constants.standaloneMonths()[month] + " " + activeDate.getFullYear());
}
}
private void updateMPMonth(int month) {
for (int i = 0; i < mpMonths.getCount(); i++) {
Element elem = mpMonths.item(i);
int xmonth = elem.getPropertyInt("xmonth");
fly(elem).setStyleName("x-date-mp-sel", xmonth == month);
}
}
private void updateMPYear(int year) {
mpyear = year;
for (int i = 1; i <= 10; i++) {
El td = new El(mpYears.item(i - 1));
int y2;
if (i % 2 == 0) {
y2 = (int) (year + (Math.round(i * .5)));
td.firstChild().update("" + y2);
td.dom.setPropertyInt("xyear", y2);
} else {
y2 = (int) (year - (5 - Math.round(i * .5)));
td.firstChild().update("" + y2);
td.dom.setPropertyInt("xyear", y2);
}
fly(mpYears.item(i - 1)).setStyleName("x-date-mp-sel", y2 == year);
}
}
}