software.xdev.vaadin.daterange_picker.ui.DateRangePicker Maven / Gradle / Ivy
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/*
* Copyright © 2020 XDEV Software (https://xdev.software)
*
* 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 software.xdev.vaadin.daterange_picker.ui;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.time.format.FormatStyle;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Locale;
import java.util.Objects;
import java.util.Optional;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Supplier;
import com.vaadin.flow.component.AttachEvent;
import com.vaadin.flow.component.ClientCallable;
import com.vaadin.flow.component.ComponentEventListener;
import com.vaadin.flow.component.ComponentUtil;
import com.vaadin.flow.component.Composite;
import com.vaadin.flow.component.HasValue;
import com.vaadin.flow.component.ItemLabelGenerator;
import com.vaadin.flow.component.button.Button;
import com.vaadin.flow.component.datepicker.DatePicker.DatePickerI18n;
import com.vaadin.flow.component.dependency.CssImport;
import com.vaadin.flow.component.html.Div;
import com.vaadin.flow.component.icon.VaadinIcon;
import com.vaadin.flow.component.orderedlayout.FlexComponent;
import com.vaadin.flow.component.orderedlayout.VerticalLayout;
import com.vaadin.flow.data.binder.HasItems;
import com.vaadin.flow.server.VaadinService;
import com.vaadin.flow.shared.Registration;
import software.xdev.vaadin.daterange_picker.business.DateRange;
import software.xdev.vaadin.daterange_picker.business.DateRangeActions;
import software.xdev.vaadin.daterange_picker.business.DateRangeModel;
/**
* Represents a Date-Range-Picker
*/
@SuppressWarnings({"PMD.GodClass", "java:S1948"})
@CssImport(DateRangePickerStyles.LOCATION)
public class DateRangePicker extends Composite implements
FlexComponent,
HasItems,
DateRangeActions>,
HasValue, DateRangeModel>
{
public static final Locale DEFAULT_LOCALE = Locale.US;
protected static AtomicInteger nextID = new AtomicInteger(0);
/*
* Fields
*/
protected boolean expanded;
protected DateRangeModel model;
/*
* Config
*/
protected boolean useClientSideLocale = true;
protected Optional formatLocale = Optional.empty();
protected ItemLabelGenerator dateRangeLocalizerFunction = DateRange::getDefaultDescription;
protected Optional datePickerI18n = Optional.empty();
protected boolean closeOnOutsideClick = true;
protected boolean allowRangeLimitExceeding = true;
/*
* UI-Components
*/
protected final Button btnOverview = new Button();
protected final Div overlayContainer = new Div();
protected final DateRangePickerOverlay overlay = new DateRangePickerOverlay<>(this);
public DateRangePicker(final DateRangeModel initialModel)
{
this(initialModel, new ArrayList<>());
}
public DateRangePicker(final DateRangeModel initialModel, final D[] items)
{
this(initialModel, new ArrayList<>(Arrays.asList(items)));
}
public DateRangePicker(final DateRangeModel initialModel, final Collection items)
{
this.model = Objects.requireNonNull(initialModel);
this.overlay.setItems(items);
this.initUI();
this.registerListeners();
}
public DateRangePicker(final Supplier> initialModelSupplier)
{
this(initialModelSupplier.get());
}
public DateRangePicker(final Supplier> initialModelSupplier, final D[] items)
{
this(initialModelSupplier.get(), items);
}
public DateRangePicker(final Supplier> initialModelSupplier, final Collection items)
{
this(initialModelSupplier.get(), items);
}
// region Initializers
public DateRangePicker withCloseOnOutsideClick(final boolean closeOnOutsideClick)
{
this.closeOnOutsideClick = closeOnOutsideClick;
return this;
}
public boolean isCloseOnOutsideClick()
{
return this.closeOnOutsideClick;
}
public DateRangePicker withDatePickerI18n(final DatePickerI18n datePickerI18n)
{
this.datePickerI18n = Optional.ofNullable(datePickerI18n);
return this;
}
public Optional getDatePickerI18n()
{
return this.datePickerI18n;
}
/**
* Sets the locale used for formatting the "expand" button.
* If the locale is null (default) the clientside locale will be used or {@link Locale#US} if none
* could be detected.
*
*/
public DateRangePicker withFormatLocale(final Locale locale)
{
this.useClientSideLocale = locale == null;
this.formatLocale = Optional.ofNullable(locale);
return this;
}
public Locale getFormatLocale()
{
return this.formatLocale.orElse(DEFAULT_LOCALE);
}
public DateRangePicker withDateRangeLocalizerFunction(final ItemLabelGenerator dateRangeLocalizerFunction)
{
this.dateRangeLocalizerFunction = dateRangeLocalizerFunction;
return this;
}
public ItemLabelGenerator getDateRangeLocalizerFunction()
{
return this.dateRangeLocalizerFunction;
}
/**
* Shortcut for {@link DateRangePicker#setStartLabel(String)}
*/
public DateRangePicker withStartLabel(final String label)
{
this.setStartLabel(label);
return this;
}
/**
* Shortcut for {@link DateRangePicker#setEndLabel(String)}
*/
public DateRangePicker withEndLabel(final String label)
{
this.setEndLabel(label);
return this;
}
/**
* Shortcut for {@link DateRangePicker#setDateRangeOptionsLabel(String)}
*/
public DateRangePicker withDateRangeOptionsLabel(final String label)
{
this.setDateRangeOptionsLabel(label);
return this;
}
/**
* Shortcut for {@link DateRangePicker#setAllowRangeLimitExceeding(boolean)}
*/
public DateRangePicker withAllowRangeLimitExceeding(final boolean allowRangeLimitExceeding)
{
this.setAllowRangeLimitExceeding(allowRangeLimitExceeding);
return this;
}
// endregion
protected void initUI()
{
// Set an unique ID for each element
this.setId("DateRangePickerID" + nextID.incrementAndGet());
this.btnOverview.addClassNames(DateRangePickerStyles.BUTTON, DateRangePickerStyles.CLICKABLE);
this.btnOverview.setWidthFull();
this.btnOverview.setDisableOnClick(true);
this.overlay.addClassName(DateRangePickerStyles.OVERLAY_LAYOUT);
this.overlay.setWidthFull();
this.overlay.setHeight("auto");
this.overlayContainer.setWidthFull();
this.overlayContainer.addClassName(DateRangePickerStyles.OVERLAY_BASE);
this.overlayContainer.add(this.overlay);
this.getContent().setSpacing(false);
this.getContent().setPadding(false);
this.setSizeUndefined();
this.add(this.btnOverview, this.overlayContainer);
this.setExpanded(false);
}
protected void registerListeners()
{
this.btnOverview.addClickListener(ev ->
{
this.toggle();
ev.getSource().setEnabled(true);
});
this.overlay.addValueChangeListener(ev ->
{
this.model = ev.getSource().getModel();
this.updateFromModel(false);
this.fireEvent(new DateRangeValueChangeEvent<>(this, ev.getOldValue(), ev.isFromClient()));
});
}
@Override
protected void onAttach(final AttachEvent attachEvent)
{
this.setLocaleFromClient();
this.updateFromModel(true);
this.addClickOutsideListener();
}
protected void setLocaleFromClient()
{
if(this.useClientSideLocale)
{
this.formatLocale = Optional.ofNullable(VaadinService.getCurrentRequest().getLocale());
}
}
protected void addClickOutsideListener()
{
if(!this.isCloseOnOutsideClick())
{
return;
}
final String funcName = "outsideClickFunc" + this.getId().orElseThrow();
final String jsCommand = String.join(
"\r\n",
// Define Click-Function
"var " + funcName + " = function(event) {",
// Get the current Element
" var spEl = document.getElementById('" + this.getId().orElseThrow() + "');",
" if (!spEl) {",
// If the element got detached/removed, then als delete the listener of the base element
" document.removeEventListener('click'," + funcName + ");",
" return;",
" }",
// Check if a Vaadin overlay caused the click
" let parent = event.target;",
// Check all parents of clicked element
" while(parent) {",
// Check if a vaadin overlay was clicked:
// Fist check if the tagName indicates a Vaadin overlay
// If not fallback to id='overlay'
" let tagName = parent.tagName.toLowerCase();",
" if((tagName.includes('vaadin') && tagName.includes('overlay')) || parent.id == 'overlay') {",
" return;",
" }",
" parent = parent.parentElement;",
" }",
// Check if the click was done on this element
" var isClickInside = spEl.contains(event.target);",
" if (!isClickInside) {",
" spEl.$server.clickOutsideOccurred();",
" }",
"}; ",
"document.body.addEventListener('click'," + funcName + ");"
);
this.getContent().getElement().executeJs(jsCommand);
}
@ClientCallable
protected void clickOutsideOccurred()
{
if(!this.isCloseOnOutsideClick())
{
return;
}
if(this.isExpanded())
{
this.setExpanded(false);
}
}
protected void updateFromModel(final boolean updateOverlay)
{
if(updateOverlay)
{
this.tryFixInvalidModel();
}
final DateTimeFormatter formatter =
DateTimeFormatter.ofLocalizedDate(FormatStyle.SHORT).withLocale(this.getFormatLocale());
this.btnOverview.setText(this.model.getStart().format(formatter)
+ (this.model.getStart().equals(this.model.getEnd()) ? "" : " - " + this.model.getEnd().format(formatter))
);
if(updateOverlay)
{
this.overlay.setModel(this.model);
}
}
protected void tryFixInvalidModel()
{
this.model.getDateRange()
.calcFor(this.model.getStart())
.ifPresent(result -> {
this.model.setStart(result.getStart());
this.model.setEnd(result.getEnd());
});
}
protected void toggle()
{
this.setExpanded(!this.isExpanded());
}
protected synchronized void setExpanded(final boolean expanded)
{
this.expanded = expanded;
this.btnOverview.setIcon(expanded ? VaadinIcon.CARET_DOWN.create() : VaadinIcon.CARET_UP.create());
this.overlay.setVisible(expanded);
}
public synchronized boolean isExpanded()
{
return this.expanded;
}
// region Get UI elements
public DateRangePickerOverlay getOverlay()
{
return this.overlay;
}
public Button getBtnOverview()
{
return this.btnOverview;
}
public Div getOverlayContainer()
{
return this.overlayContainer;
}
// endregion
// region Labels
/**
* Sets the label for the overlay Start-DatePicker
*/
public void setStartLabel(final String label)
{
Objects.requireNonNull(label);
this.getOverlay().getDpStart().setLabel(label);
}
/**
* Sets the label for the overlay End-DatePicker
*/
public void setEndLabel(final String label)
{
Objects.requireNonNull(label);
this.getOverlay().getDpEnd().setLabel(label);
}
/**
* Sets the label for the overlay DateRange-ComboBox
*/
public void setDateRangeOptionsLabel(final String label)
{
Objects.requireNonNull(label);
this.getOverlay().getCbDateRange().setLabel(label);
}
// endregion
// region AllowRangeLimitExceeding
/**
* Allows the maximum start and end date to be greater or less than the configured end or start date.
*
* This is only the case when {@link DateRange#isCalcable()} is true. Otherwise incorrect values (e.g.
* start before end) could be set.
*/
public void setAllowRangeLimitExceeding(final boolean allowRangeLimitExceeding)
{
this.allowRangeLimitExceeding = allowRangeLimitExceeding;
}
public boolean isAllowRangeLimitExceeding()
{
return this.allowRangeLimitExceeding;
}
// endregion
// region Data
/**
* Uses the given {@link DateRange} and calculates with the current Date the {@link DateRangeModel}, which is then
* set by {@link DateRangePicker#setValue(DateRangeModel)}
*/
public void setDateRangeForToday(final D range)
{
range.calcFor(LocalDate.now()).ifPresent(
result -> this.setValue(new DateRangeModel<>(result.getStart(), result.getEnd(), range)));
}
@Override
public void setItems(final Collection items)
{
this.overlay.setItems(items);
}
@Override
public LocalDate getStart()
{
return this.model.getStart();
}
@Override
public DateRangePicker setStart(final LocalDate start)
{
this.model.setStart(start);
this.updateFromModel(true);
return this;
}
@Override
public LocalDate getEnd()
{
return this.model.getEnd();
}
@Override
public DateRangePicker setEnd(final LocalDate end)
{
this.model.setEnd(end);
this.updateFromModel(true);
return this;
}
@Override
public D getDateRange()
{
return this.model.getDateRange();
}
@Override
public DateRangePicker setDateRange(final D dateRange)
{
this.model.setDateRange(dateRange);
this.updateFromModel(true);
return this;
}
@Override
public void setValue(final DateRangeModel value)
{
Objects.requireNonNull(value);
this.model = value;
this.updateFromModel(true);
}
@Override
public DateRangeModel getValue()
{
return this.model;
}
@SuppressWarnings("unchecked")
@Override
public Registration addValueChangeListener(final ValueChangeListener> listener)
{
@SuppressWarnings("rawtypes")
final ComponentEventListener componentListener =
event -> listener.valueChanged((DateRangeValueChangeEvent)event);
return ComponentUtil.addListener(this, DateRangeValueChangeEvent.class, componentListener);
}
/**
* DateRangePicker always has a value
* However for compatibility reasons (with Vaadin) this returns {@code null}
* @return {@code null}
*/
@Override
public DateRangeModel getEmptyValue()
{
return null;
}
/**
* DateRangePicker always has a value
* Therefore this always returns {@code false}
*
* @return {@code false}
*/
@Override
public boolean isEmpty()
{
return false;
}
/**
* Do not use this method, as it throws a {@link UnsupportedOperationException}
* The calling of clear is not supported because DateRangePicker always has a value
* Use {@link DateRangePicker#setValue(DateRangeModel)} instead.
*
* @throws UnsupportedOperationException DateRangePicker always has a value
*/
@Override
public void clear()
{
throw new UnsupportedOperationException(
"The calling of clear is not supported because DateRangePicker always has a value");
}
@Override
public void setReadOnly(final boolean readOnly)
{
this.getOverlay().setReadOnly(readOnly);
}
@Override
public boolean isReadOnly()
{
return this.getOverlay().isReadOnly();
}
/**
* The required indicator is not implemented
*
* This method doesn't have any functionallity
*/
@Override
public void setRequiredIndicatorVisible(final boolean requiredIndicatorVisible)
{
// Not required/implemented
}
/**
* The required indicator is not implemented
This will always return {@code false}
*
* @return {@code false}
*/
@Override
public boolean isRequiredIndicatorVisible()
{
return false;
}
// endregion
}