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High quality UI controls and other tools to complement the core JavaFX distribution
/**
* Copyright (c) 2014, 2016, 2020 ControlsFX
* 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 ControlsFX, any associated website, 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 CONTROLSFX 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 impl.org.controlsfx.skin;
import javafx.beans.binding.Bindings;
import javafx.event.Event;
import javafx.scene.Node;
import javafx.scene.control.ListView;
import javafx.scene.control.ListCell;
import javafx.scene.control.Skin;
import javafx.scene.control.cell.TextFieldListCell;
import javafx.scene.input.MouseButton;
import javafx.util.StringConverter;
import javafx.util.Callback;
import org.controlsfx.control.textfield.AutoCompletionBinding;
public class AutoCompletePopupSkin implements Skin> {
private final AutoCompletePopup control;
private final ListView suggestionList;
final int LIST_CELL_HEIGHT = 24;
public AutoCompletePopupSkin(AutoCompletePopup control) {
this(control, control.getConverter());
}
/**
* @param control
* The popup to be skinned
* @param displayConverter
* An alternate {@link StringConverter} to use. This way, you can show autocomplete suggestions
* that when applied will fill in a different text than displayed. For example, you may preview
* {@code Files.newBufferedReader(Path: path) - Bufferedreader} but only fill in
* {@code Files.newBufferedReader(}
*/
public AutoCompletePopupSkin(AutoCompletePopup control, StringConverter displayConverter) {
this(control, TextFieldListCell.forListView(displayConverter));
}
/**
* @param control
* The popup to be skinned
* @param cellFactory
* Set a custom cell factory for the suggestions.
*/
public AutoCompletePopupSkin(AutoCompletePopup control, Callback, ListCell> cellFactory) {
this.control = control;
suggestionList = new ListView<>(control.getSuggestions());
suggestionList.getStyleClass().add(AutoCompletePopup.DEFAULT_STYLE_CLASS);
suggestionList.getStylesheets().add(AutoCompletionBinding.class
.getResource("autocompletion.css").toExternalForm()); //$NON-NLS-1$
/**
* Here we bind the prefHeightProperty to the minimum height between the
* max visible rows and the current items list. We also add an arbitrary
* 5 number because when we have only one item we have the vertical
* scrollBar showing for no reason.
*/
suggestionList.prefHeightProperty().bind(
Bindings.min(control.visibleRowCountProperty(), Bindings.size(suggestionList.getItems()))
.multiply(LIST_CELL_HEIGHT).add(18));
suggestionList.setCellFactory(cellFactory);
//Allowing the user to control ListView width.
suggestionList.prefWidthProperty().bind(control.prefWidthProperty());
suggestionList.maxWidthProperty().bind(control.maxWidthProperty());
suggestionList.minWidthProperty().bind(control.minWidthProperty());
registerEventListener();
}
private void registerEventListener(){
suggestionList.setOnMouseClicked(me -> {
if (me.getButton() == MouseButton.PRIMARY){
onSuggestionChoosen(suggestionList.getSelectionModel().getSelectedItem());
}
});
suggestionList.setOnKeyPressed(ke -> {
switch (ke.getCode()) {
case TAB:
case ENTER:
onSuggestionChoosen(suggestionList.getSelectionModel().getSelectedItem());
break;
case ESCAPE:
if (control.isHideOnEscape()) {
control.hide();
}
break;
default:
break;
}
});
}
private void onSuggestionChoosen(T suggestion){
if(suggestion != null) {
Event.fireEvent(control, new AutoCompletePopup.SuggestionEvent<>(suggestion));
}
}
@Override
public Node getNode() {
return suggestionList;
}
@Override
public AutoCompletePopup getSkinnable() {
return control;
}
@Override
public void dispose() {
}
}