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/*******************************************************************************
* Copyright (c) 2010 BestSolution.at 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:
* Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation
******************************************************************************/
package org.eclipse.e4.tools.emf.ui.internal.common.component.dialogs;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.databinding.observable.list.IObservableList;
import org.eclipse.core.databinding.observable.list.WritableList;
import org.eclipse.e4.tools.emf.ui.common.IModelElementProvider.Filter;
import org.eclipse.e4.tools.emf.ui.common.IModelElementProvider.ModelResultHandler;
import org.eclipse.e4.tools.emf.ui.common.Util;
import org.eclipse.e4.tools.emf.ui.common.Util.InternalPackage;
import org.eclipse.e4.tools.emf.ui.common.component.AbstractComponentEditor;
import org.eclipse.e4.tools.emf.ui.internal.Messages;
import org.eclipse.e4.tools.emf.ui.internal.common.ClassContributionCollector;
import org.eclipse.e4.ui.model.application.MApplicationElement;
import org.eclipse.e4.ui.model.fragment.MStringModelFragment;
import org.eclipse.e4.ui.model.fragment.impl.FragmentPackageImpl;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.edit.command.SetCommand;
import org.eclipse.jface.databinding.viewers.ObservableListContentProvider;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.StyledCellLabelProvider;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
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.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.FrameworkUtil;
import org.osgi.framework.ServiceReference;
public class FindParentReferenceElementDialog extends TitleAreaDialog {
private MStringModelFragment fragment;
private AbstractComponentEditor editor;
private TableViewer viewer;
private Messages Messages;
public FindParentReferenceElementDialog(Shell parentShell, AbstractComponentEditor editor, MStringModelFragment fragment, Messages Messages) {
super(parentShell);
this.fragment = fragment;
this.editor = editor;
this.Messages = Messages;
}
@Override
protected Control createDialogArea(Composite parent) {
Composite comp = (Composite) super.createDialogArea(parent);
final Image titleImage = new Image(parent.getDisplay(), getClass().getClassLoader().getResourceAsStream("/icons/full/wizban/import_wiz.png")); //$NON-NLS-1$
setTitleImage(titleImage);
getShell().addDisposeListener(new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
titleImage.dispose();
}
});
getShell().setText(Messages.FindParentReferenceElementDialog_ShellTitle);
setTitle(Messages.FindParentReferenceElementDialog_Title);
setMessage(Messages.FindParentReferenceElementDialog_Message);
Composite container = new Composite(comp, SWT.NONE);
container.setLayoutData(new GridData(GridData.FILL_BOTH));
container.setLayout(new GridLayout(2, false));
Label l = new Label(container, SWT.NONE);
l.setText(Messages.FindParentReferenceElementDialog_ContainerType);
final ComboViewer eClassViewer = new ComboViewer(container);
eClassViewer.setLabelProvider(new LabelProvider() {
@Override
public String getText(Object element) {
return ((EClass) element).getName();
}
});
eClassViewer.setContentProvider(new ArrayContentProvider());
List<EClass> eClassList = new ArrayList<EClass>();
for (InternalPackage p : Util.loadPackages()) {
eClassList.addAll(p.getAllClasses());
}
eClassViewer.setComparator(new ViewerComparator() {
@Override
public int compare(Viewer viewer, Object e1, Object e2) {
EClass ec1 = (EClass) e1;
EClass ec2 = (EClass) e2;
return ec1.getName().compareTo(ec2.getName());
}
});
eClassViewer.setInput(eClassList);
eClassViewer.getCombo().select(0);
eClassViewer.getControl().setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
l = new Label(container, SWT.NONE);
l.setText(Messages.FindParentReferenceElementDialog_Search);
final Text searchText = new Text(container, SWT.BORDER | SWT.SEARCH | SWT.ICON_SEARCH);
GridData gd = new GridData(GridData.FILL_HORIZONTAL);
searchText.setLayoutData(gd);
l = new Label(container, SWT.PUSH);
viewer = new TableViewer(container);
gd = new GridData(GridData.FILL_BOTH);
gd.heightHint = 200;
viewer.getControl().setLayoutData(gd);
viewer.setLabelProvider(new StyledCellLabelProvider() {
@Override
public void update(ViewerCell cell) {
EObject o = (EObject) cell.getElement();
AbstractComponentEditor editor = FindParentReferenceElementDialog.this.editor.getEditor().getEditor(o.eClass());
cell.setImage(editor.getImage(o, searchText.getDisplay()));
MApplicationElement appEl = (MApplicationElement) o;
StyledString styledString = new StyledString(editor.getLabel(o) + " (" + (appEl.getElementId() == null ? "<" + Messages.FindParentReferenceElementDialog_NoId + ">" : appEl.getElementId()) + ")", null); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
String detailLabel = editor.getDetailLabel(o);
if (detailLabel != null && !detailLabel.equals(appEl.getElementId())) {
styledString.append(" - " + detailLabel, StyledString.DECORATIONS_STYLER); //$NON-NLS-1$
}
styledString.append(" - " + o.eResource().getURI(), StyledString.COUNTER_STYLER); //$NON-NLS-1$
cell.setStyleRanges(styledString.getStyleRanges());
cell.setText(styledString.getString());
}
});
viewer.setContentProvider(new ObservableListContentProvider());
viewer.addDoubleClickListener(new IDoubleClickListener() {
public void doubleClick(DoubleClickEvent event) {
okPressed();
}
});
final WritableList list = new WritableList();
viewer.setInput(list);
final ClassContributionCollector collector = getCollector();
searchText.addModifyListener(new ModifyListener() {
private ModelResultHandlerImpl currentResultHandler;
public void modifyText(ModifyEvent e) {
if (currentResultHandler != null) {
currentResultHandler.cancled = true;
}
list.clear();
Filter filter = new Filter((EClass) ((IStructuredSelection) eClassViewer.getSelection()).getFirstElement(), searchText.getText());
currentResultHandler = new ModelResultHandlerImpl(list, filter, editor, ((EObject) fragment).eResource());
collector.findModelElements(filter, currentResultHandler);
}
});
Button button = new Button(container, SWT.PUSH);
button.setText(Messages.FindParentReferenceElementDialog_ClearCache);
button.setLayoutData(new GridData(GridData.END, GridData.CENTER, true, false, 2, 1));
button.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
collector.clearModelCache();
}
});
return comp;
}
@Override
protected void okPressed() {
IStructuredSelection s = (IStructuredSelection) viewer.getSelection();
if (!s.isEmpty()) {
MApplicationElement el = (MApplicationElement) s.getFirstElement();
if (el.getElementId() != null && el.getElementId().trim().length() > 0) {
Command cmd = SetCommand.create(editor.getEditingDomain(), fragment, FragmentPackageImpl.Literals.STRING_MODEL_FRAGMENT__PARENT_ELEMENT_ID, el.getElementId());
if (cmd.canExecute()) {
editor.getEditingDomain().getCommandStack().execute(cmd);
super.okPressed();
}
} else {
setErrorMessage(Messages.FindParentReferenceElementDialog_NoReferenceId);
}
}
}
private ClassContributionCollector getCollector() {
Bundle bundle = FrameworkUtil.getBundle(FindParentReferenceElementDialog.class);
BundleContext context = bundle.getBundleContext();
ServiceReference ref = context.getServiceReference(ClassContributionCollector.class.getName());
if (ref != null) {
return (ClassContributionCollector) context.getService(ref);
}
return null;
}
private static class ModelResultHandlerImpl implements ModelResultHandler {
private boolean cancled = false;
private IObservableList list;
private Filter filter;
private AbstractComponentEditor editor;
private Resource resource;
public ModelResultHandlerImpl(IObservableList list, Filter filter, AbstractComponentEditor editor, Resource resource) {
this.list = list;
this.filter = filter;
this.editor = editor;
this.resource = resource;
}
public void result(EObject data) {
if (!cancled) {
if (!resource.getURI().equals(data.eResource().getURI())) {
if (data instanceof MApplicationElement) {
String elementId = ((MApplicationElement) data).getElementId();
if (elementId == null) {
list.add(data);
return;
}
if (elementId != null && elementId.trim().length() > 0) {
if (filter.elementIdPattern.matcher(elementId).matches()) {
list.add(data);
return;
}
}
String label = editor.getDetailLabel(data);
if (elementId != null && label != null && label.trim().length() > 0) {
if (filter.elementIdPattern.matcher(label).matches()) {
list.add(data);
return;
}
}
}
}
}
}
}
}
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