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High quality UI controls and other tools to complement the core JavaFX distribution
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/**
 * Copyright (c) 2014, 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 org.controlsfx.samples.propertysheet;

import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.collections.ObservableList;
import javafx.concurrent.Service;
import javafx.concurrent.Task;
import javafx.concurrent.WorkerStateEvent;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Pos;
import javafx.scene.Node;
import javafx.scene.control.Button;
import javafx.scene.layout.BorderPane;

import org.controlsfx.control.ButtonBar;
import org.controlsfx.control.PropertySheet;
import org.controlsfx.control.action.Action;
import org.controlsfx.dialog.Dialog;
import org.controlsfx.dialog.DialogAction;
import org.controlsfx.property.BeanProperty;
import org.controlsfx.property.BeanPropertyUtils;
import org.controlsfx.property.editor.PropertyEditor;

public class PopupPropertyEditor implements PropertyEditor {

    private final Button btnEditor;
    private final PropertySheet.Item item;
    private final ObjectProperty value = new SimpleObjectProperty<>();

    final Action actionSave = new DialogAction("Save", ButtonBar.ButtonType.OK_DONE, false, true, true, ae -> { /* real saving code here */ } ) {
            
                @Override
                public String toString() {
                    return "SAVE";
                }
    };
    
    public PopupPropertyEditor(PropertySheet.Item item) {
        this.item = item;
        if (item.getValue() != null) {
            btnEditor = new Button(item.getValue().toString());
            value.set((T) item.getValue());
        } else {
            btnEditor = new Button("");
        }
        btnEditor.setAlignment(Pos.CENTER_LEFT);
        btnEditor.setOnAction((ActionEvent event) -> {
            displayPopupEditor();
        });
    }

    private void displayPopupEditor() {
        PopupPropertySheet sheet = new PopupPropertySheet<>(item, this);

        Dialog dlg = new Dialog(null, "Popup Property Editor", false);

        dlg.setResizable(false);
        dlg.setIconifiable(false);
        dlg.setContent(sheet);
        dlg.getActions().addAll(actionSave, Dialog.ACTION_CANCEL);
        Action response = dlg.show();

        if (actionSave.equals(response)) {
            item.setValue(sheet.getBean());
            btnEditor.setText(sheet.getBean().toString());
        }

    }

    @Override
    public Node getEditor() {
        return btnEditor;
    }

    @Override
    public T getValue() {
        return value.get();
    }

    @Override
    public void setValue(T t) {
        value.set(t);
        if (t != null) {
            btnEditor.setText(t.toString());
        }
    }

    private class PopupPropertySheet extends BorderPane {

        private final PropertyEditor owner;
        private final PropertySheet sheet;
        private final PropertySheet.Item item;
        private T bean;

        public PopupPropertySheet(PropertySheet.Item item, PropertyEditor owner) {

            this.item = item;
            this.owner = owner;
            sheet = new PropertySheet();
            setCenter(sheet);
//            installButtons();
            setMinHeight(500);

            initSheet();

        }

        public T getBean() {
            return bean;
        }

        private void initSheet() {
            if (item.getValue() == null) {

                bean = null;
                try {
                    bean = (T) item.getType().newInstance();
                } catch (InstantiationException | IllegalAccessException ex) {
                    ex.printStackTrace();
                    return;
                }
                if (bean == null) {
                    return;
                }
            } else {
                bean = (T) item.getValue();
            }

            Service service = new Service>() {
                @Override
                protected Task> createTask() {
                    return new Task>() {
                        @Override
                        protected ObservableList call() throws Exception {
                            return BeanPropertyUtils.getProperties(bean);
                        }
                    };
                }

            };
            service.setOnSucceeded(new EventHandler() {
                @SuppressWarnings("unchecked")
                @Override
                public void handle(WorkerStateEvent e) {
                    for (PropertySheet.Item i : (ObservableList) e.getSource().getValue()) {
                        if (i instanceof BeanProperty && ((BeanProperty) i).getPropertyDescriptor() instanceof CustomPropertyDescriptor) {
                            BeanProperty bi = (BeanProperty) i;
                            bi.setEditable(((CustomPropertyDescriptor) bi.getPropertyDescriptor()).isEditable());
                        }
                    }
                    sheet.getItems().setAll((ObservableList) e.getSource().getValue());
                }
            });
            service.start();

        }
    }

}