/*
* Copyright 2000-2016 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.client.ui.datefield;
import java.util.Date;
import com.google.gwt.event.logical.shared.CloseEvent;
import com.google.gwt.event.logical.shared.CloseHandler;
import com.google.gwt.user.client.ui.PopupPanel;
import com.vaadin.client.ApplicationConnection;
import com.vaadin.client.UIDL;
import com.vaadin.client.communication.StateChangeEvent;
import com.vaadin.client.ui.VAbstractCalendarPanel;
import com.vaadin.client.ui.VAbstractCalendarPanel.FocusChangeListener;
import com.vaadin.client.ui.VAbstractPopupCalendar;
import com.vaadin.shared.ui.datefield.TextualDateFieldState;
/**
* Abstract date/time field connector which extend
* {@link AbstractTextualDateConnector} functionality with widget that shows
* date/time chooser as a popup panel.
*
* @author Vaadin Ltd
*
* @since 8.0
*
* @param <PANEL>
* Subclass of VAbstractCalendarPanel specific for the implementation
* @param <R>
* the resolution type which the field is based on (day, month, ...)
*/
public abstract class TextualDateConnector<PANEL extends VAbstractCalendarPanel<R>, R extends Enum<R>>
extends AbstractTextualDateConnector<R> {
@Override
protected void init() {
getWidget().popup.addCloseHandler(new CloseHandler<PopupPanel>() {
@Override
public void onClose(CloseEvent<PopupPanel> event) {
/*
* FIXME This is a hack so we do not have to rewrite half of the
* datefield so values are not sent while selecting a date
* (#6252).
*
* The datefield will now only set the date UIDL variables while
* the user is selecting year/month/date/time and not send them
* directly. Only when the user closes the popup (by clicking on
* a day/enter/clicking outside of popup) then the new value is
* communicated to the server.
*/
getConnection().getServerRpcQueue().flush();
}
});
}
@Override
@SuppressWarnings("deprecation")
public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
String oldLocale = getWidget().getCurrentLocale();
getWidget().parsable = uidl.getBooleanAttribute("parsable");
super.updateFromUIDL(uidl, client);
getWidget().calendar
.setDateTimeService(getWidget().getDateTimeService());
getWidget().calendar
.setShowISOWeekNumbers(getWidget().isShowISOWeekNumbers());
if (getWidget().calendar.getResolution() != getWidget()
.getCurrentResolution()) {
boolean hasSelectedDate = false;
getWidget().calendar
.setResolution(getWidget().getCurrentResolution());
if (getWidget().calendar.getDate() != null
&& getWidget().getCurrentDate() != null) {
hasSelectedDate = true;
getWidget().calendar
.setDate((Date) getWidget().getCurrentDate().clone());
}
// force re-render when changing resolution only
getWidget().calendar.renderCalendar(hasSelectedDate);
}
// Force re-render of calendar if locale has changed (#12153)
if (!getWidget().getCurrentLocale().equals(oldLocale)) {
getWidget().calendar.renderCalendar();
}
updateListeners();
if (getWidget().isReadonly()) {
getWidget().calendarToggle.addStyleName(
VAbstractPopupCalendar.CLASSNAME + "-button-readonly");
} else {
getWidget().calendarToggle.removeStyleName(
VAbstractPopupCalendar.CLASSNAME + "-button-readonly");
}
getWidget().setDescriptionForAssistiveDevices(
getState().descriptionForAssistiveDevices);
getWidget().setTextFieldTabIndex();
}
/**
* Updates listeners registered (or register them) for the widget based on
* the current resolution.
* <p>
* Subclasses may override this method to keep the common logic inside the
* {@link #updateFromUIDL(UIDL, ApplicationConnection)} method as is and
* customizing only listeners logic.
*/
protected void updateListeners() {
if (isResolutionMonthOrHigher()) {
getWidget().calendar
.setFocusChangeListener(new FocusChangeListener() {
@Override
public void focusChanged(Date date) {
if (isResolutionMonthOrHigher()) {
getWidget().updateValue(date);
getWidget().buildDate();
Date date2 = getWidget().calendar.getDate();
date2.setYear(date.getYear());
date2.setMonth(date.getMonth());
}
}
});
} else {
getWidget().calendar.setFocusChangeListener(null);
}
}
/**
* Returns {@code true} is the current resolution of the widget is month or
* less specific (e.g. month, year, quarter, etc).
*
* @return {@code true} if the current resolution is above month
*/
protected abstract boolean isResolutionMonthOrHigher();
@Override
public VAbstractPopupCalendar<PANEL, R> getWidget() {
return (VAbstractPopupCalendar<PANEL, R>) super.getWidget();
}
@Override
public TextualDateFieldState getState() {
return (TextualDateFieldState) super.getState();
}
@Override
public void onStateChanged(StateChangeEvent stateChangeEvent) {
super.onStateChanged(stateChangeEvent);
getWidget().setTextFieldEnabled(getState().textFieldEnabled);
getWidget().setRangeStart(nullSafeDateClone(getState().rangeStart));
getWidget().setRangeEnd(nullSafeDateClone(getState().rangeEnd));
}
private Date nullSafeDateClone(Date date) {
if (date == null) {
return null;
} else {
return (Date) date.clone();
}
}
@Override
protected void setWidgetStyleName(String styleName, boolean add) {
super.setWidgetStyleName(styleName, add);
// update the style change to popup calendar widget
getWidget().popup.setStyleName(styleName, add);
}
@Override
protected void setWidgetStyleNameWithPrefix(String prefix, String styleName,
boolean add) {
super.setWidgetStyleNameWithPrefix(prefix, styleName, add);
// update the style change to popup calendar widget with the correct
// prefix
if (!styleName.startsWith("-")) {
getWidget().popup.setStyleName(
getWidget().getStylePrimaryName() + "-popup-" + styleName,
add);
} else {
getWidget().popup.setStyleName(
getWidget().getStylePrimaryName() + "-popup" + styleName,
add);
}
}
}