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/*******************************************************************************
* Copyright (c) 2012 TESIS DYNAware GmbH and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Torsten Sommer <torsten.sommer@tesis.de> - initial API and implementation
*******************************************************************************/
package org.eclipse.fx.demo.contacts.views;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.fx.demo.contacts.handlers.CopyHandler;
import org.eclipse.fx.demo.contacts.handlers.CutHandler;
import org.eclipse.fx.demo.contacts.handlers.DeleteContactHandler;
import org.eclipse.fx.demo.contacts.handlers.PasteHandler;
import org.eclipse.fx.demo.contacts.model.ContactsManager;
import org.eclipse.fx.emf.edit.ui.AdapterFactoryCellFactory.ICellUpdateListener;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.control.Cell;
import javafx.scene.control.ContextMenu;
import javafx.scene.control.ListCell;
import javafx.scene.control.MenuItem;
import javafx.scene.control.MultipleSelectionModel;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableRow;
import javafx.scene.control.TreeCell;
import javafx.scene.control.TreeItem;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.stage.WindowEvent;
public class ContextMenuProvider implements ICellUpdateListener {
ContactsManager contactsManager;
private DeleteContactHandler deleteHandler;
private MenuItem deleteMenuItem;
CutHandler cutHandler;
private MenuItem cutMenuItem;
private CopyHandler copyHandler;
private MenuItem copyMenuItem;
private PasteHandler pasteHandler;
private MenuItem pasteMenuItem;
public ContextMenuProvider(ContactsManager contactsManager) {
this.contactsManager = contactsManager;
}
static List<?> getSelectionModel(Cell<?> cell) {
if (cell instanceof ListCell<?>) {
return ((ListCell<?>) cell).getListView().getSelectionModel().getSelectedItems();
} else if (cell instanceof TreeCell<?>) {
MultipleSelectionModel<?> selectionModel = ((TreeCell<?>) cell).getTreeView().getSelectionModel();
ObservableList<?> selectedItems = selectionModel.getSelectedItems();
ArrayList<Object> unwrappedItems = new ArrayList<>(selectedItems.size());
for (Object object : selectedItems) {
TreeItem<?> treeItem = (TreeItem<?>) object;
unwrappedItems.add(treeItem.getValue());
}
return unwrappedItems;
} else if (cell instanceof TableCell<?, ?>) {
return ((TableCell<?, ?>) cell).getTableView().getSelectionModel().getSelectedItems();
} else if (cell instanceof TableRow<?>) {
return ((TableRow<?>) cell).getTableView().getSelectionModel().getSelectedItems();
}
return null;
}
@Override
public void updateItem(final Cell<?> cell, final Object item, boolean empty) {
final ContextMenu contextMenu = new ContextMenu();
cell.setContextMenu(contextMenu);
contextMenu.getItems().add(new MenuItem());
contextMenu.setOnShowing(new EventHandler<WindowEvent>() {
@Override
public void handle(WindowEvent event) {
List<?> selectedItems = getSelectionModel(cell);
deleteMenuItem.setDisable(!deleteHandler.canExecute(selectedItems));
cutMenuItem.setDisable(!cutHandler.canExecute(selectedItems));
copyMenuItem.setDisable(!copyHandler.canExecute(selectedItems));
Object item2 = cell.getItem();
pasteMenuItem.setDisable(!pasteHandler.canExecute(item2));
contextMenu.getItems().clear();
contextMenu.getItems().add(deleteMenuItem);
contextMenu.getItems().add(cutMenuItem);
contextMenu.getItems().add(copyMenuItem);
contextMenu.getItems().add(pasteMenuItem);
}
});
deleteMenuItem = new MenuItem("Delete", getImage("icons/silk/cross.png"));
deleteHandler = new DeleteContactHandler(contactsManager);
deleteMenuItem.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
deleteHandler.execute();
}
});
cutMenuItem = new MenuItem("Cut", getImage("icons/silk/cut.png"));
cutHandler = new CutHandler(contactsManager);
cutMenuItem.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
cutHandler.execute();
}
});
copyMenuItem = new MenuItem("Copy", getImage("icons/silk/page_copy.png"));
copyHandler = new CopyHandler(contactsManager);
copyMenuItem.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
copyHandler.execute();
}
});
pasteMenuItem = new MenuItem("Paste", getImage("icons/silk/page_paste.png"));
pasteHandler = new PasteHandler(contactsManager);
pasteMenuItem.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
pasteHandler.execute();
}
});
}
private ImageView getImage(String path) {
try {
URL url = new URL("platform:/plugin/org.eclipse.fx.demo.contacts.app/" + path);
Image image = new Image(url.toExternalForm());
return new ImageView(image);
} catch (MalformedURLException e) {
throw new IllegalArgumentException(e);
}
}
}
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