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/*******************************************************************************
* Copyright (c) 2012 CEA LIST.
* 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:
* Nicolas Bros (Mia-Software) - Bug 372865 - FacetSet selection dialog
* Gregoire Dupe (Mia-Software) - Bug 372626 - Aggregates
*******************************************************************************/
package org.eclipse.papyrus.emf.facet.efacet.ui.internal.dialogs;
import java.util.Collection;
import java.util.List;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.window.Window;
import org.eclipse.papyrus.emf.facet.efacet.metamodel.v0_2_0.efacet.FacetSet;
import org.eclipse.papyrus.emf.facet.efacet.ui.internal.Activator;
import org.eclipse.papyrus.emf.facet.efacet.ui.internal.Messages;
import org.eclipse.papyrus.emf.facet.efacet.ui.internal.exported.dialog.IFacetSetSelectionDialogInternal;
import org.eclipse.papyrus.emf.facet.efacet.ui.internal.widget.FacetSetSelectionControl;
import org.eclipse.papyrus.emf.facet.util.ui.internal.exported.dialog.IDialogCallback;
import org.eclipse.papyrus.emf.facet.util.ui.internal.exported.dialog.IDialogCallbackWithPreCommit;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.dialogs.SelectionStatusDialog;
/**
* A dialog to select {@link FacetSet}s
*
* @param <T>
* the type of a pre-commit dialog
*/
public class FacetSetSelectionDialog<T> extends SelectionStatusDialog implements IFacetSetSelectionDialogInternal<T> {
// note: the dialog should be large enough to see the validator message
private static final int DEFAULT_WIDTH = 800;
private static final int DEFAULT_HEIGHT = 600;
private final Collection<FacetSet> available;
private final int selectionMaxSize;
private final boolean allowEmpty;
private final IDialogCallbackWithPreCommit<List<FacetSet>, Boolean, T> callback;
private FacetSetSelectionControl selectionControl;
public FacetSetSelectionDialog(final Collection<FacetSet> available,
final int selectionMaxSize, final boolean allowEmpty,
final IDialogCallbackWithPreCommit<List<FacetSet>, Boolean, T> callback, final Shell parentShell) {
super(parentShell);
Assert.isLegal(callback != null, "available cannot be null"); //$NON-NLS-1$
Assert.isLegal(callback != null, "callback cannot be null"); //$NON-NLS-1$
Assert.isLegal(selectionMaxSize > 0, "selectionMaxSize must be > 0"); //$NON-NLS-1$
this.available = available;
this.selectionMaxSize = selectionMaxSize;
this.allowEmpty = allowEmpty;
this.callback = callback;
setHelpAvailable(false);
}
@Override
protected Control createDialogArea(final Composite parent) {
final Composite composite = (Composite) super.createDialogArea(parent);
final Runnable onChange = new Runnable() {
public void run() {
updateValidationStatus();
}
};
this.selectionControl = createFacetSetSelectionControl(composite, onChange);
this.selectionControl.createContents();
this.selectionControl.setAvailableFacetSets(this.available);
updateValidationStatus();
return composite;
}
protected FacetSetSelectionControl createFacetSetSelectionControl(final Composite parentComposite, final Runnable onChange) {
return new FacetSetSelectionControl(parentComposite, this.selectionMaxSize, this.allowEmpty, onChange);
}
@Override
protected void createButtonsForButtonBar(final Composite parent) {
createButton(parent, IDialogConstants.SELECT_ALL_ID, Messages.FacetSetSelectionDialog_selectAll, false);
createButton(parent, IDialogConstants.DESELECT_ALL_ID, Messages.FacetSetSelectionDialog_deselectAll, false);
super.createButtonsForButtonBar(parent);
}
@Override
protected void buttonPressed(final int buttonId) {
super.buttonPressed(buttonId);
if (IDialogConstants.SELECT_ALL_ID == buttonId) {
selectAll();
} else if (IDialogConstants.DESELECT_ALL_ID == buttonId) {
deselectAll();
}
}
protected void updateValidationStatus() {
updateStatus(this.selectionControl.getValidationStatus());
}
@Override
protected void configureShell(final Shell shell) {
super.configureShell(shell);
if (this.selectionMaxSize > 1) {
shell.setText(Messages.FacetSetSelectionDialog_titleSelectFacetSets);
} else {
shell.setText(Messages.FacetSetSelectionDialog_titleSelectFacetSet);
}
}
@Override
protected boolean isResizable() {
return true;
}
@Override
protected IDialogSettings getDialogBoundsSettings() {
final String sectionName = this.getClass().getName() + ".settings"; //$NON-NLS-1$
final IDialogSettings settings = Activator.getDefault().getDialogSettings();
IDialogSettings section = settings.getSection(sectionName);
if (section == null) {
section = settings.addNewSection(sectionName);
// cf Dialog#DIALOG_WIDTH
section.put("DIALOG_WIDTH", FacetSetSelectionDialog.DEFAULT_WIDTH); //$NON-NLS-1$
section.put("DIALOG_HEIGHT", FacetSetSelectionDialog.DEFAULT_HEIGHT); //$NON-NLS-1$
}
return section;
}
public boolean isErrorStatus() {
final IStatus validationStatus = this.selectionControl.getValidationStatus();
return validationStatus == null || validationStatus.getSeverity() >= IStatus.ERROR;
}
public T pressOk() {
final IDialogCallback<Boolean> precommitCallBack = new IDialogCallback<Boolean>() {
public void committed(final Boolean precommitResult) {
commit(precommitResult);
}
};
final T dialog = this.callback.openPrecommitDialog(
getSelectedFacetSets(),
precommitCallBack);
if (dialog == null) {
commit(Boolean.TRUE);
}
return dialog;
}
public void pressCancel() {
setReturnCode(Window.CANCEL);
close();
}
@Override
protected void okPressed() {
pressOk();
}
@Override
protected void cancelPressed() {
pressCancel();
}
protected void commit(final Boolean precommitResult) {
// since the callback is called from client code, we need to ensure we are running on the UI thread
Display.getDefault().syncExec(new Runnable() {
public void run() {
commitOnUIThread(precommitResult);
}
});
}
protected void commitOnUIThread(final Boolean precommitResult) {
final List<FacetSet> selectedFacetSets = getSelectedFacetSets();
setReturnCode(Window.OK);
close();
this.callback.committed(selectedFacetSets, precommitResult);
}
@Override
public int open() {
// so that this dialog can be manipulated programmatically
setBlockOnOpen(false);
return super.open();
}
public List<FacetSet> getSelectedFacetSets() {
if (this.selectionControl.isDisposed()) {
throw new UnsupportedOperationException("No selection available because the dialog is closed"); //$NON-NLS-1$
}
return this.selectionControl.getSelectedFacetSets();
}
public void setSelectedFacetSets(final List<? extends FacetSet> newSelection) {
this.selectionControl.setSelectedFacetSets(newSelection);
updateValidationStatus();
}
public void selectAll() {
this.selectionControl.selectAll();
updateValidationStatus();
}
public void deselectAll() {
this.selectionControl.deselectAll();
updateValidationStatus();
}
public boolean isOkButtonEnabled() {
return getOkButton().isEnabled();
}
@Override
protected void computeResult() {
// nothing : the dialog is not used in a standard way : use the callback
}
public TreeViewer getTreeViewer() {
return this.selectionControl.getTreeViewer();
}
}
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