/**
* CalendarTextFieldSkin.java
*
* Copyright (c) 2011-2016, JFXtras
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the organization nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package jfxtras.internal.scene.control.skin;
import java.text.DateFormat;
import java.util.Calendar;
import java.util.Date;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.control.SkinBase;
import javafx.scene.control.TextField;
import javafx.scene.control.Tooltip;
import javafx.scene.image.ImageView;
import javafx.scene.input.KeyCode;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.ColumnConstraints;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Priority;
import javafx.stage.Popup;
import javafx.util.Callback;
import jfxtras.scene.control.CalendarPicker;
import jfxtras.scene.control.CalendarPicker.CalendarRange;
import jfxtras.scene.control.CalendarTextField;
import jfxtras.scene.control.ImageViewButton;
import jfxtras.scene.control.LocalDatePicker;
import jfxtras.scene.control.LocalDateTextField;
import jfxtras.scene.control.LocalDateTimePicker;
import jfxtras.scene.control.LocalDateTimeTextField;
import jfxtras.scene.layout.VBox;
import jfxtras.util.NodeUtil;
/**
*
* @author Tom Eugelink
*
* Possible extension: drop down list or grid for quick selection
*/
public class CalendarTextFieldSkin extends SkinBase<CalendarTextField> implements TextFieldSkin
{
// ==================================================================================================================
// CONSTRUCTOR
/**
*
*/
public CalendarTextFieldSkin(CalendarTextField control)
{
super(control);
construct();
}
/*
*
*/
private void construct()
{
// setup component
createNodes();
// react to value changes in the model
getSkinnable().calendarProperty().addListener( (observableValue, oldValue, newValue) -> { refreshValue(); });
getSkinnable().dateFormatProperty().addListener( (observableValue, oldValue, newValue) -> { refreshValue(); });
textField.textProperty().bindBidirectional(getSkinnable().textProperty());
refreshValue();
// focus
initFocusSimulation();
/**
* If the user is triggering the property, we must show the popup.
* We cannot bind the property directly to the popup because the
* popup property is read only. MoreOver, we want to show the popup
* next to the TextField, that's why we need to call showPopup();
*/
getSkinnable().pickerShowingProperty().addListener((ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean showing) -> {
if (showing) {
showPopup();
} else if(popup != null){
popup.hide();
}
});
}
/*
*
*/
private void refreshValue()
{
// write out to textfield
Calendar c = getSkinnable().getCalendar();
String s = c == null ? "" : getSkinnable().getDateFormat().format( c.getTime() );
textField.setText(s);
if (s.equals(getSkinnable().getText()) == false) {
getSkinnable().setText(s);
}
}
/**
* When the control is focus, forward the focus to the textfield
*/
private void initFocusSimulation()
{
getSkinnable().focusedProperty().addListener((observableValue, wasFocused, isFocused) -> {
if (isFocused) {
textField.requestFocus();
}
});
}
@Override
public void selectAll(){
textField.selectAll();
}
// ==================================================================================================================
// DRAW
/**
* construct the nodes
*/
private void createNodes()
{
// the main textField
textField = new TextField();
textField.setPrefColumnCount(20);
textField.focusedProperty().addListener( (observable) -> {
if (textField.isFocused() == false) {
parse();
}
// update derived properties on our control
focusForwardingProperty.set(textField.focusedProperty().get());
});
textField.setOnAction( (actionEvent) -> {
parse();
});
textField.setOnKeyPressed( (keyEvent) -> {
if (keyEvent.getCode() == KeyCode.UP || keyEvent.getCode() == KeyCode.DOWN) {
// parse the content
parse();
// get the calendar to modify
Calendar lCalendar = getSkinnable().getCalendar();
if (lCalendar == null) return;
lCalendar = (Calendar)lCalendar.clone();
// modify
int lField = Calendar.DATE;
if (keyEvent.isShiftDown() == false && keyEvent.isControlDown()) lField = Calendar.MONTH;
if (keyEvent.isShiftDown() == false && keyEvent.isAltDown()) lField = Calendar.YEAR;
if (keyEvent.isShiftDown() == true && keyEvent.isControlDown() && getSkinnable().getShowTime()) lField = Calendar.HOUR_OF_DAY;
if (keyEvent.isShiftDown() == true && keyEvent.isAltDown() && getSkinnable().getShowTime()) lField = Calendar.MINUTE;
lCalendar.add(lField, keyEvent.getCode() == KeyCode.UP ? 1 : -1);
// set it
getSkinnable().setCalendar(lCalendar);
}
});
// bind the textField's tooltip to our (so it will show up) and give it a default value describing the mutation features
textField.tooltipProperty().bindBidirectional(getSkinnable().tooltipProperty());
if (getSkinnable().getTooltip() == null)
{
// TODO: internationalize the tooltip
getSkinnable().setTooltip(new Tooltip("Type a date or use # for today, or +/-<number>[d|w|m|y] for delta's (for example: -3m for minus 3 months)\nUse cursor up and down plus optional shift (week), ctrl (month) or alt (year) for quick keyboard changes."));
}
textField.promptTextProperty().bind(getSkinnable().promptTextProperty());
// the icon
imageView = new ImageViewButton();
imageView.getStyleClass().add("icon");
imageView.setPickOnBounds(true);
imageView.setOnMouseClicked( (evt) -> {
if (textField.focusedProperty().get() == true) {
parse();
}
getSkinnable().setPickerShowing(true);
});
// construct a gridpane: one row, two columns
gridPane = new GridPane();
gridPane.setHgap(3);
gridPane.add(textField, 0, 0);
gridPane.add(imageView, 1, 0);
ColumnConstraints column0 = new ColumnConstraints(20, 100, Double.MAX_VALUE);
column0.setHgrow(Priority.ALWAYS);
gridPane.getColumnConstraints().addAll(column0); // first column gets any extra width
// add to self
getSkinnable().getStyleClass().add(this.getClass().getSimpleName()); // always add self as style class, because CSS should relate to the skin not the control
getChildren().add(gridPane);
}
private TextField textField = null;
private ImageView imageView = null;
private GridPane gridPane = null;
final public BooleanProperty focusForwardingProperty = new SimpleBooleanProperty();
/**
* parse the contents that was typed in the textfield
*/
private void parse() {
parse(textField.getText());
}
/**
* parse the text
*/
private void parse(String lText)
{
try
{
// process the text
lText = lText.trim();
if (lText.length() == 0)
{
if (getSkinnable().getAllowNull() == false) {
throw new IllegalArgumentException("Empty string would result in null and that is not allowed");
}
getSkinnable().setCalendar(null);
return;
}
// starts with - means substract days
if (lText.startsWith("-") || lText.startsWith("+"))
{
// + has problems
if (lText.startsWith("+")) lText = lText.substring(1);
// special units Day, Week, Month, Year
// TODO: internationalize?
int lUnit = Calendar.DATE;
if (lText.toLowerCase().endsWith("d")) { lText = lText.substring(0, lText.length() - 1); lUnit = Calendar.DATE; }
if (lText.toLowerCase().endsWith("w")) { lText = lText.substring(0, lText.length() - 1); lUnit = Calendar.WEEK_OF_YEAR; }
if (lText.toLowerCase().endsWith("m")) { lText = lText.substring(0, lText.length() - 1); lUnit = Calendar.MONTH; }
if (lText.toLowerCase().endsWith("y")) { lText = lText.substring(0, lText.length() - 1); lUnit = Calendar.YEAR; }
// parse the delta
int lDelta = Integer.parseInt(lText);
Calendar lCalendar = (Calendar)getSkinnable().getCalendar().clone();
lCalendar.add(lUnit, lDelta);
// set the value
getSkinnable().setCalendar(lCalendar);
}
else if (lText.equals("#"))
{
// set the value
getSkinnable().setCalendar(Calendar.getInstance(getSkinnable().getLocale()));
}
else
{
try
{
Calendar lCalendar = getSkinnable().getCalendar();
Date lDate = null;
// First we're going to try the parsers in the list.
// The user is free to decide to sequence here, if we would try the default first, that would not be the case.
for (DateFormat lDateFormat : getSkinnable().getDateFormats())
{
try
{
// parse using the formatter
lDate = lDateFormat.parse( lText );
break; // exit the for loop
}
catch (java.text.ParseException | java.time.format.DateTimeParseException e2) {
// we can safely ignore this, since we will fall back to the default formatter in the end
// TODO: do we want a way to show these error messages? System.out.println(e2.getMessage());
}
}
if (lDate == null)
{
// parse using the default formatter
lDate = getSkinnable().getDateFormat().parse( lText );
}
// set the value (the parse with the default formatter either succeeded or threw an exception, skipping this code)
lCalendar = Calendar.getInstance(getSkinnable().getLocale());
lCalendar.setTime(lDate);
getSkinnable().setCalendar(lCalendar);
}
finally
{
// always refresh
refreshValue();
}
}
}
catch (Throwable t)
{
// handle the exception
// TODO: implement a default handler (show in popup / validation icon)
if (getSkinnable().getParseErrorCallback() != null) {
getSkinnable().getParseErrorCallback().call(t);
}
else {
t.printStackTrace();
}
}
}
private void setupPopup(){
// create a picker
calendarPicker = new CalendarPicker();
calendarPicker.setMode(CalendarPicker.Mode.SINGLE);
calendarPicker.localeProperty().set(getSkinnable().localeProperty().get());
calendarPicker.allowNullProperty().set(getSkinnable().allowNullProperty().get());
calendarPicker.calendarProperty().set(getSkinnable().calendarProperty().get());
DateTimeToCalendarHelper.sync(calendarPicker.disabledCalendars(), getSkinnable().disabledCalendars());
DateTimeToCalendarHelper.sync(calendarPicker.highlightedCalendars(), getSkinnable().highlightedCalendars());
calendarPicker.displayedCalendar().set(getSkinnable().getDisplayedCalendar());
calendarPicker.setCalendarRangeCallback(new Callback<CalendarRange,Void>() {
@Override
public Void call(CalendarRange calendarRange) {
Callback<CalendarRange, Void> lCallback = getSkinnable().getCalendarRangeCallback();
if (lCallback == null) {
return null;
}
return lCallback.call(calendarRange);
}
});
calendarPicker.setValueValidationCallback(new Callback<Calendar, Boolean>() {
@Override
public Boolean call(Calendar calendar) {
Callback<Calendar, Boolean> lCallback = getSkinnable().getValueValidationCallback();
if (lCallback == null) {
return true;
}
return lCallback.call(calendar);
}
});
// TODO: replace with PopupControl because that is styleable (see C:/Users/user/Documents/openjfx/8.0rt/modules/controls/src/main/java/com/sun/javafx/scene/control/skin/ComboBoxPopupControl.java)
// popup = new PopupControl() {
//
// @Override public Styleable getStyleableParent() {
// return CalendarTextFieldSkin.this.getSkinnable();
// }
// {
// setSkin(new Skin<Skinnable>() {
// @Override public Skinnable getSkinnable() { return CalendarTextFieldSkin.this.getSkinnable(); }
// @Override public Node getNode() { return lBorderPane; }
// @Override public void dispose() { }
// });
// getScene().getRoot().impl_processCSS(true);
// }
// };
popup = new Popup();
popup.setAutoFix(true);
popup.setAutoHide(true);
popup.setHideOnEscape(true);
BorderPane lBorderPane = new BorderPane() {
// As of 1.8.0_40 CSS files are added in the scope of a control, the popup does not fall under the control, so the stylesheet must be reapplied
// When JFxtras is based on 1.8.0_40+: @Override
public String getUserAgentStylesheet() {
return getSkinnable().getUserAgentStylesheet();
}
};
lBorderPane.getStyleClass().add(this.getClass().getSimpleName() + "_popup");
lBorderPane.setCenter(calendarPicker);
calendarPicker.showTimeProperty().set(getSkinnable().getShowTime());
// because the Java 8 DateTime classes use the CalendarPicker, we need to add some specific CSS classes here to support seamless CSS
if (getSkinnable().getStyleClass().contains(LocalDateTextField.class.getSimpleName())) {
calendarPicker.getStyleClass().addAll(LocalDatePicker.class.getSimpleName());
}
if (getSkinnable().getStyleClass().contains(LocalDateTimeTextField.class.getSimpleName())) {
calendarPicker.getStyleClass().addAll(LocalDateTimePicker.class.getSimpleName());
}
// add a close and accept button if we're showing time
if ( getSkinnable().getShowTime())
{
VBox lVBox = new VBox();
lBorderPane.rightProperty().set(lVBox);
ImageView lAcceptIconImageView = new ImageViewButton();
lAcceptIconImageView.getStyleClass().addAll("accept-icon");
lAcceptIconImageView.setPickOnBounds(true);
lAcceptIconImageView.setOnMouseClicked( (mouseEvent) -> {
getSkinnable().calendarProperty().set(calendarPicker.calendarProperty().get());
if (popup != null) {
popup.hide();
}
});
lVBox.add(lAcceptIconImageView);
ImageView lCloseIconImageView = new ImageViewButton();
lCloseIconImageView.getStyleClass().addAll("close-icon");
lCloseIconImageView.setPickOnBounds(true);
lCloseIconImageView.setOnMouseClicked( (mouseEvent) -> {
popup.hide();
});
lVBox.add(lCloseIconImageView);
}
// if a value is selected in date mode, immediately close the popup
calendarPicker.calendarProperty().addListener( (observable) -> {
if (getSkinnable().getShowTime() == false && popup.isShowing()) {
popup.hide();
}
});
// when the popup is hidden
popup.setOnHiding( (windowEvent) -> {
// and time is not shown, the value must be set into the textfield
if ( getSkinnable().getShowTime() == false) {
getSkinnable().calendarProperty().set(calendarPicker.calendarProperty().get());
}
// but at least the textfield must be enabled again
textField.setDisable(false);
textField.requestFocus();
});
// add to popup
popup.getContent().setAll(lBorderPane);
// show it just below the textfield
textField.setDisable(true);
/**
* If the popup is showing/hiding, we must notify the property of
* the CalendarTextField so that they are always in sync.
*/
popup.showingProperty().addListener(new ChangeListener<Boolean>() {
@Override
public void changed(ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean showing) {
getSkinnable().setPickerShowing(showing);
if (!showing) {
popup.showingProperty().removeListener(this);
popup = null;
}
}
});
}
private Popup popup = null;
private CalendarPicker calendarPicker = null;
/**
* This is either called by the user clicking on the button, or
* programmatically with {@link CalendarTextField#setPickerShowing(boolean)
* }.
*/
private void showPopup() {
if(popup == null){
setupPopup();
}
double height = textField.getHeight() == 0.0 ? textField.prefHeight(-1): textField.getHeight();
popup.show(textField, NodeUtil.screenX(getSkinnable()), NodeUtil.screenY(getSkinnable()) + height);
// move the focus over
calendarPicker.requestFocus(); // TODO: not working
}
}