bundles/core/org.eclipse.apogy.core.ui/src/org/eclipse/apogy/core/ui/composites/BindingsListComposite.java - gerrit/apogy/apogy - Git at Google

 /*******************************************************************************
  * Copyright (c) 2018 Agence spatiale canadienne / Canadian Space Agency
  * 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:
  *     Pierre Allard,
  *     Regent L'Archeveque - initial API and implementation
  *
  * SPDX-License-Identifier: EPL-1.0
  *******************************************************************************/
 package org.eclipse.apogy.core.ui.composites;

 import java.util.Iterator;
 import java.util.List;

 import org.eclipse.apogy.common.emf.ApogyCommonEMFFacade;
 import org.eclipse.apogy.common.emf.transaction.ApogyCommonTransactionFacade;
 import org.eclipse.apogy.common.emf.ui.ApogyCommonEMFUIFactory;
 import org.eclipse.apogy.common.emf.ui.MapBasedEClassSettings;
 import org.eclipse.apogy.common.emf.ui.wizards.ApogyEObjectWizard;
 import org.eclipse.apogy.common.topology.bindings.AbstractTopologyBinding;
 import org.eclipse.apogy.common.topology.bindings.ApogyCommonTopologyBindingsPackage;
 import org.eclipse.apogy.common.topology.bindings.BindingsList;
 import org.eclipse.core.databinding.DataBindingContext;
 import org.eclipse.core.databinding.UpdateValueStrategy;
 import org.eclipse.core.databinding.conversion.Converter;
 import org.eclipse.core.databinding.observable.value.IObservableValue;
 import org.eclipse.emf.common.notify.AdapterFactory;
 import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
 import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
 import org.eclipse.jface.databinding.swt.WidgetProperties;
 import org.eclipse.jface.databinding.viewers.ViewerProperties;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.ITreeContentProvider;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.wizard.Wizard;
 import org.eclipse.jface.wizard.WizardDialog;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.DisposeEvent;
 import org.eclipse.swt.events.DisposeListener;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Event;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.Tree;

 public class BindingsListComposite extends Composite {
 	private BindingsList bindingsList;

 	private final Tree tree;
 	private final TreeViewer treeViewer;

 	private final Button btnNew;
 	private final Button btnDelete;

 	private DataBindingContext m_bindingContext;
 	private final AdapterFactory adapterFactory = new ComposedAdapterFactory(
 			ComposedAdapterFactory.Descriptor.Registry.INSTANCE);

 	public BindingsListComposite(Composite parent, int style) {
 		super(parent, style);
 		setLayout(new GridLayout(2, false));

 		this.treeViewer = new TreeViewer(this,
 				SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.MULTI);
 		this.tree = this.treeViewer.getTree();
 		GridData gd_tree = new GridData(SWT.FILL, SWT.FILL, false, true, 1, 1);
 		gd_tree.widthHint = 200;
 		gd_tree.minimumWidth = 200;
 		this.tree.setLayoutData(gd_tree);
 		this.tree.setLinesVisible(true);

 		this.treeViewer.setContentProvider(new CustomContentProvider());
 		this.treeViewer.setLabelProvider(new AdapterFactoryLabelProvider(this.adapterFactory));
 		this.treeViewer.addSelectionChangedListener(new ISelectionChangedListener() {
 			@Override
 			public void selectionChanged(SelectionChangedEvent event) {
 				AbstractTopologyBinding selectedAbstractTopologyBinding = (AbstractTopologyBinding) ((IStructuredSelection) event
 						.getSelection()).getFirstElement();
 				newBindingSelected(selectedAbstractTopologyBinding);
 			}
 		});

 		// Buttons.
 		Composite composite = new Composite(this, SWT.NONE);
 		composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1));
 		composite.setLayout(new GridLayout(1, false));

 		this.btnNew = new Button(composite, SWT.NONE);
 		this.btnNew.setSize(74, 29);
 		this.btnNew.setText("New");
 		this.btnNew.setToolTipText("Create a new Binding.");
 		this.btnNew.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
 		this.btnNew.setEnabled(true);
 		this.btnNew.addListener(SWT.Selection, new Listener() {
 			@Override
 			public void handleEvent(Event event) {
 				if (event.type == SWT.Selection) {
 					MapBasedEClassSettings settings = ApogyCommonEMFUIFactory.eINSTANCE.createMapBasedEClassSettings();
 					String name = ApogyCommonEMFFacade.INSTANCE.getDefaultName(getBindingsList(), null,
 							ApogyCommonTopologyBindingsPackage.Literals.BINDINGS_LIST__BINDINGS);

 					settings.getUserDataMap().put("name", name);
 					settings.getUserDataMap().put("apogySystem", getBindingsList().eContainer());

 					Wizard wizard = new ApogyEObjectWizard(
 							ApogyCommonTopologyBindingsPackage.Literals.BINDINGS_LIST__BINDINGS, getBindingsList(),
 							settings, ApogyCommonTopologyBindingsPackage.Literals.ABSTRACT_TOPOLOGY_BINDING);
 					WizardDialog dialog = new WizardDialog(getShell(), wizard);
 					dialog.open();

 					// Forces the viewer to refresh its input.
 					if (!BindingsListComposite.this.treeViewer.isBusy()) {
 						BindingsListComposite.this.treeViewer.setInput(getBindingsList());
 					}
 				}
 			}
 		});

 		this.btnDelete = new Button(composite, SWT.NONE);
 		this.btnDelete.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
 		this.btnDelete.setSize(74, 29);
 		this.btnDelete.setText("Delete");
 		this.btnDelete.setToolTipText("Deletes the selected Binding(s).");
 		this.btnDelete.setEnabled(false);
 		this.btnDelete.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent event) {
 				String deleteMessage = "";

 				Iterator<AbstractTopologyBinding> bindingsIterator = getSelectedBindings().iterator();
 				while (bindingsIterator.hasNext()) {
 					AbstractTopologyBinding binding = bindingsIterator.next();
 					deleteMessage = deleteMessage + binding.getName();

 					if (bindingsIterator.hasNext()) {
 						deleteMessage = deleteMessage + ", ";
 					}
 				}

 				MessageDialog dialog = new MessageDialog(null, "Delete the selected Bindings", null,
 						"Are you sure to delete these Bindings : " + deleteMessage, MessageDialog.QUESTION,
 						new String[] { "Yes", "No" }, 1);
 				int result = dialog.open();
 				if (result == 0) {
 					List<AbstractTopologyBinding> toRemove = getSelectedBindings();
 					ApogyCommonTransactionFacade.INSTANCE.basicRemove(getBindingsList(),
 							ApogyCommonTopologyBindingsPackage.Literals.BINDINGS_LIST__BINDINGS, toRemove);
 				}

 				// Forces the viewer to refresh its input.
 				if (!BindingsListComposite.this.treeViewer.isBusy()) {
 					BindingsListComposite.this.treeViewer.setInput(getBindingsList());
 				}
 			}
 		});

 		// Cleanup on dispose
 		addDisposeListener(new DisposeListener() {
 			@Override
 			public void widgetDisposed(DisposeEvent e) {
 				if (BindingsListComposite.this.m_bindingContext != null)
 					BindingsListComposite.this.m_bindingContext.dispose();
 			}
 		});
 	}

 	public BindingsList getBindingsList() {
 		return this.bindingsList;
 	}

 	public void setBindingsList(BindingsList newBindingsList) {
 		if (this.m_bindingContext != null)
 			this.m_bindingContext.dispose();

 		this.bindingsList = newBindingsList;

 		if (newBindingsList != null) {
 			this.m_bindingContext = initDataBindingsCustom();
 		}

 		this.treeViewer.setInput(newBindingsList);
 	}

 	@SuppressWarnings("unchecked")
 	public List<AbstractTopologyBinding> getSelectedBindings() {
 		return ((IStructuredSelection) this.treeViewer.getSelection()).toList();
 	}

 	protected void newBindingSelected(AbstractTopologyBinding selectedAbstractTopologyBinding) {
 	}

 	private DataBindingContext initDataBindingsCustom() {
 		DataBindingContext bindingContext = new DataBindingContext();

 		IObservableValue<?> observeSingleSelectionViewer = ViewerProperties.singleSelection().observe(this.treeViewer);

 		/* Delete Button Enabled Binding. */
 		IObservableValue<?> observeEnabledBtnDeleteObserveWidget = WidgetProperties.enabled().observe(this.btnDelete);
 		bindingContext.bindValue(observeEnabledBtnDeleteObserveWidget, observeSingleSelectionViewer, null,
 				new UpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE)
 						.setConverter(new Converter(Object.class, Boolean.class) {
 							@Override
 							public Object convert(Object fromObject) {
 								return fromObject != null;
 							}
 						}));

 		return bindingContext;
 	}

 	private class CustomContentProvider implements ITreeContentProvider {
 		@Override
 		public void dispose() {
 		}

 		@Override
 		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 		}

 		@Override
 		public Object[] getElements(Object inputElement) {
 			if (inputElement instanceof BindingsList) {
 				BindingsList bindingsList = (BindingsList) inputElement;
 				return bindingsList.getBindings().toArray();
 			}

 			return null;
 		}

 		@Override
 		public Object[] getChildren(Object parentElement) {
 			if (parentElement instanceof BindingsList) {
 				BindingsList bindingsList = (BindingsList) parentElement;
 				return bindingsList.getBindings().toArray();
 			}

 			return null;
 		}

 		@Override
 		public Object getParent(Object element) {
 			return null;
 		}

 		@Override
 		public boolean hasChildren(Object element) {
 			if (element instanceof BindingsList) {
 				BindingsList bindingsList = (BindingsList) element;
 				return bindingsList.getBindings().isEmpty();
 			} else {
 				return false;
 			}
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2018 Agence spatiale canadienne / Canadian Space Agency
	* 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:
	* Pierre Allard,
	* Regent L'Archeveque - initial API and implementation
	*
	* SPDX-License-Identifier: EPL-1.0
	*******************************************************************************/
	package org.eclipse.apogy.core.ui.composites;

	import java.util.Iterator;
	import java.util.List;

	import org.eclipse.apogy.common.emf.ApogyCommonEMFFacade;
	import org.eclipse.apogy.common.emf.transaction.ApogyCommonTransactionFacade;
	import org.eclipse.apogy.common.emf.ui.ApogyCommonEMFUIFactory;
	import org.eclipse.apogy.common.emf.ui.MapBasedEClassSettings;
	import org.eclipse.apogy.common.emf.ui.wizards.ApogyEObjectWizard;
	import org.eclipse.apogy.common.topology.bindings.AbstractTopologyBinding;
	import org.eclipse.apogy.common.topology.bindings.ApogyCommonTopologyBindingsPackage;
	import org.eclipse.apogy.common.topology.bindings.BindingsList;
	import org.eclipse.core.databinding.DataBindingContext;
	import org.eclipse.core.databinding.UpdateValueStrategy;
	import org.eclipse.core.databinding.conversion.Converter;
	import org.eclipse.core.databinding.observable.value.IObservableValue;
	import org.eclipse.emf.common.notify.AdapterFactory;
	import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
	import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
	import org.eclipse.jface.databinding.swt.WidgetProperties;
	import org.eclipse.jface.databinding.viewers.ViewerProperties;
	import org.eclipse.jface.dialogs.MessageDialog;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.ITreeContentProvider;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.TreeViewer;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.jface.wizard.Wizard;
	import org.eclipse.jface.wizard.WizardDialog;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.DisposeEvent;
	import org.eclipse.swt.events.DisposeListener;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Event;
	import org.eclipse.swt.widgets.Listener;
	import org.eclipse.swt.widgets.Tree;

	public class BindingsListComposite extends Composite {
	private BindingsList bindingsList;

	private final Tree tree;
	private final TreeViewer treeViewer;

	private final Button btnNew;
	private final Button btnDelete;

	private DataBindingContext m_bindingContext;
	private final AdapterFactory adapterFactory = new ComposedAdapterFactory(
	ComposedAdapterFactory.Descriptor.Registry.INSTANCE);

	public BindingsListComposite(Composite parent, int style) {
	super(parent, style);
	setLayout(new GridLayout(2, false));

	this.treeViewer = new TreeViewer(this,
	SWT.BORDER \| SWT.H_SCROLL \| SWT.V_SCROLL \| SWT.FULL_SELECTION \| SWT.MULTI);
	this.tree = this.treeViewer.getTree();
	GridData gd_tree = new GridData(SWT.FILL, SWT.FILL, false, true, 1, 1);
	gd_tree.widthHint = 200;
	gd_tree.minimumWidth = 200;
	this.tree.setLayoutData(gd_tree);
	this.tree.setLinesVisible(true);

	this.treeViewer.setContentProvider(new CustomContentProvider());
	this.treeViewer.setLabelProvider(new AdapterFactoryLabelProvider(this.adapterFactory));
	this.treeViewer.addSelectionChangedListener(new ISelectionChangedListener() {
	@Override
	public void selectionChanged(SelectionChangedEvent event) {
	AbstractTopologyBinding selectedAbstractTopologyBinding = (AbstractTopologyBinding) ((IStructuredSelection) event
	.getSelection()).getFirstElement();
	newBindingSelected(selectedAbstractTopologyBinding);
	}
	});

	// Buttons.
	Composite composite = new Composite(this, SWT.NONE);
	composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1));
	composite.setLayout(new GridLayout(1, false));

	this.btnNew = new Button(composite, SWT.NONE);
	this.btnNew.setSize(74, 29);
	this.btnNew.setText("New");
	this.btnNew.setToolTipText("Create a new Binding.");
	this.btnNew.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
	this.btnNew.setEnabled(true);
	this.btnNew.addListener(SWT.Selection, new Listener() {
	@Override
	public void handleEvent(Event event) {
	if (event.type == SWT.Selection) {
	MapBasedEClassSettings settings = ApogyCommonEMFUIFactory.eINSTANCE.createMapBasedEClassSettings();
	String name = ApogyCommonEMFFacade.INSTANCE.getDefaultName(getBindingsList(), null,
	ApogyCommonTopologyBindingsPackage.Literals.BINDINGS_LIST__BINDINGS);

	settings.getUserDataMap().put("name", name);
	settings.getUserDataMap().put("apogySystem", getBindingsList().eContainer());

	Wizard wizard = new ApogyEObjectWizard(
	ApogyCommonTopologyBindingsPackage.Literals.BINDINGS_LIST__BINDINGS, getBindingsList(),
	settings, ApogyCommonTopologyBindingsPackage.Literals.ABSTRACT_TOPOLOGY_BINDING);
	WizardDialog dialog = new WizardDialog(getShell(), wizard);
	dialog.open();

	// Forces the viewer to refresh its input.
	if (!BindingsListComposite.this.treeViewer.isBusy()) {
	BindingsListComposite.this.treeViewer.setInput(getBindingsList());
	}
	}
	}
	});

	this.btnDelete = new Button(composite, SWT.NONE);
	this.btnDelete.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
	this.btnDelete.setSize(74, 29);
	this.btnDelete.setText("Delete");
	this.btnDelete.setToolTipText("Deletes the selected Binding(s).");
	this.btnDelete.setEnabled(false);
	this.btnDelete.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent event) {
	String deleteMessage = "";

	Iterator<AbstractTopologyBinding> bindingsIterator = getSelectedBindings().iterator();
	while (bindingsIterator.hasNext()) {
	AbstractTopologyBinding binding = bindingsIterator.next();
	deleteMessage = deleteMessage + binding.getName();

	if (bindingsIterator.hasNext()) {
	deleteMessage = deleteMessage + ", ";
	}
	}

	MessageDialog dialog = new MessageDialog(null, "Delete the selected Bindings", null,
	"Are you sure to delete these Bindings : " + deleteMessage, MessageDialog.QUESTION,
	new String[] { "Yes", "No" }, 1);
	int result = dialog.open();
	if (result == 0) {
	List<AbstractTopologyBinding> toRemove = getSelectedBindings();
	ApogyCommonTransactionFacade.INSTANCE.basicRemove(getBindingsList(),
	ApogyCommonTopologyBindingsPackage.Literals.BINDINGS_LIST__BINDINGS, toRemove);
	}

	// Forces the viewer to refresh its input.
	if (!BindingsListComposite.this.treeViewer.isBusy()) {
	BindingsListComposite.this.treeViewer.setInput(getBindingsList());
	}
	}
	});

	// Cleanup on dispose
	addDisposeListener(new DisposeListener() {
	@Override
	public void widgetDisposed(DisposeEvent e) {
	if (BindingsListComposite.this.m_bindingContext != null)
	BindingsListComposite.this.m_bindingContext.dispose();
	}
	});
	}

	public BindingsList getBindingsList() {
	return this.bindingsList;
	}

	public void setBindingsList(BindingsList newBindingsList) {
	if (this.m_bindingContext != null)
	this.m_bindingContext.dispose();

	this.bindingsList = newBindingsList;

	if (newBindingsList != null) {
	this.m_bindingContext = initDataBindingsCustom();
	}

	this.treeViewer.setInput(newBindingsList);
	}

	@SuppressWarnings("unchecked")
	public List<AbstractTopologyBinding> getSelectedBindings() {
	return ((IStructuredSelection) this.treeViewer.getSelection()).toList();
	}

	protected void newBindingSelected(AbstractTopologyBinding selectedAbstractTopologyBinding) {
	}

	private DataBindingContext initDataBindingsCustom() {
	DataBindingContext bindingContext = new DataBindingContext();

	IObservableValue<?> observeSingleSelectionViewer = ViewerProperties.singleSelection().observe(this.treeViewer);

	/* Delete Button Enabled Binding. */
	IObservableValue<?> observeEnabledBtnDeleteObserveWidget = WidgetProperties.enabled().observe(this.btnDelete);
	bindingContext.bindValue(observeEnabledBtnDeleteObserveWidget, observeSingleSelectionViewer, null,
	new UpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE)
	.setConverter(new Converter(Object.class, Boolean.class) {
	@Override
	public Object convert(Object fromObject) {
	return fromObject != null;
	}
	}));

	return bindingContext;
	}

	private class CustomContentProvider implements ITreeContentProvider {
	@Override
	public void dispose() {
	}

	@Override
	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
	}

	@Override
	public Object[] getElements(Object inputElement) {
	if (inputElement instanceof BindingsList) {
	BindingsList bindingsList = (BindingsList) inputElement;
	return bindingsList.getBindings().toArray();
	}

	return null;
	}

	@Override
	public Object[] getChildren(Object parentElement) {
	if (parentElement instanceof BindingsList) {
	BindingsList bindingsList = (BindingsList) parentElement;
	return bindingsList.getBindings().toArray();
	}

	return null;
	}

	@Override
	public Object getParent(Object element) {
	return null;
	}

	@Override
	public boolean hasChildren(Object element) {
	if (element instanceof BindingsList) {
	BindingsList bindingsList = (BindingsList) element;
	return bindingsList.getBindings().isEmpty();
	} else {
	return false;
	}
	}
	}
	}