/*******************************************************************************
* Copyright (c) 2005, 2012 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.bpel.ui.properties;
import org.eclipse.bpel.model.AbstractAssignBound;
import org.eclipse.bpel.model.BPELFactory;
import org.eclipse.bpel.model.BPELPackage;
import org.eclipse.bpel.model.Expression;
import org.eclipse.bpel.ui.IBPELUIConstants;
import org.eclipse.bpel.ui.Messages;
import org.eclipse.bpel.ui.adapters.IVirtualCopyRuleSide;
import org.eclipse.bpel.ui.commands.CompoundCommand;
import org.eclipse.bpel.ui.commands.SetCommand;
import org.eclipse.bpel.ui.util.BPELUtil;
import org.eclipse.bpel.ui.util.BatchedMultiObjectAdapter;
import org.eclipse.bpel.ui.util.MultiObjectAdapter;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.gef.commands.Command;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage;
/**
* TODO: when you first set the model object into the details page, it should query the
* sections to find out which one thinks it "owns" the model object. If NONE of them
* claim to own it, then we will use whatever combo selection is stored in the transient
* CopyExtension. The same procedure is followed when refreshing the contents of the
* page.
*
* When you select a *different* category in the combo, we must update the value in the
* CopyExtension. We should also replace the existing Copy with an *empty* Copy.
*
* Categories should become responsible for storing the value into the model themselves.
*/
public class ExpressionAssignCategory extends ExpressionSection implements IAssignCategory {
/**
* @see org.eclipse.bpel.ui.properties.IAssignCategory#isHidden()
*/
public boolean isHidden() {
return isHidden;
}
protected BPELPropertySection fOwnerSection;
protected Composite composite;
protected Composite fParent;
protected ExpressionAssignCategory( BPELPropertySection ownerSection ) {
this.fOwnerSection = ownerSection;
}
/**
* @see org.eclipse.bpel.ui.properties.BPELPropertySection#createControls(org.eclipse.swt.widgets.Composite, org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage)
*/
@Override
public void createControls(Composite parent, TabbedPropertySheetPage aTabbedPropertySheetPage) {
super.createControls(parent, aTabbedPropertySheetPage);
fParent = parent;
}
/**
* @see org.eclipse.bpel.ui.properties.IAssignCategory#getComposite()
*/
public Composite getComposite() {
return fParent;
}
// This is used by changeHelper to determine what shows up in Undo/Redo.
// The return value is FlatFormatted with getName() as the only argument.
// Subclasses may override.
protected String getLabelFlatFormatString() {
return IBPELUIConstants.FORMAT_CMD_SELECT;
}
protected boolean isToOrFromAffected(Notification n) {
// hack:
return true;
// if (isFrom) {
// return (n.getFeatureID(Copy.class) == BPELPackage.COPY__FROM);
// }
// return (n.getFeatureID(Copy.class) == BPELPackage.COPY__TO);
}
@Override
protected MultiObjectAdapter[] createAdapters() {
MultiObjectAdapter adapter = new BatchedMultiObjectAdapter() {
boolean needRefresh = false;
boolean toOrFromAffected = false;
@Override
public void notify(Notification n) {
needRefresh = isBodyAffected(n);
// if (isBodyAffected(n) && !isExecutingStoreCommand) needRefresh = true;
if (isToOrFromAffected(n)) {
toOrFromAffected = true;
}
refreshAdapters();
}
@Override
public void finish() {
if (needRefresh || toOrFromAffected) {
updateWidgets();
}
if (toOrFromAffected) {
updateCategoryWidgets();
}
toOrFromAffected = false;
needRefresh = false;
}
};
return new MultiObjectAdapter[] { adapter };
}
protected void updateCategoryWidgets() {
updateEditor();
}
/**
* Policy: wrap the command with contexts from the ownerSection (rather
* than from the category itself). On undo, the ownerSection will delegate
* to the category's methods.
*/
@Override
protected Command wrapInShowContextCommand(Command inner) {
return super.wrapInShowContextCommand(inner, fOwnerSection);
}
/**
* @see org.eclipse.bpel.ui.properties.IAssignCategory#getName()
*/
public String getName() {
return Messages.ExpressionAssignCategory_Expression_1;
}
/**
* @see org.eclipse.bpel.ui.properties.IAssignCategory#isCategoryForModel(org.eclipse.emf.ecore.EObject)
*/
public boolean isCategoryForModel ( EObject aModel ) {
IVirtualCopyRuleSide side = BPELUtil.adapt(aModel, IVirtualCopyRuleSide.class);
if (side != null) {
return side.getExpression() != null;
}
return false;
}
@Override
protected Command newStoreToModelCommand (Object body) {
CompoundCommand result = new CompoundCommand();
// If there is no condition, create one.
Expression oldExp = getExprFromModel();
Expression exp = BPELFactory.eINSTANCE.createExpression();
// Don't set the language, because if the user has changed the
// language, a condition would already exist at this point.
if (oldExp != null) {
exp.setExpressionLanguage(oldExp.getExpressionLanguage());
}
exp.setBody(body);
result.add(new SetCommand( getExpressionTarget(), exp, getStructuralFeature() ));
fEditor.addExtraStoreCommands(result);
return result;
}
@Override
protected EStructuralFeature getStructuralFeature(EObject object) {
if (object instanceof AbstractAssignBound) {
return BPELPackage.eINSTANCE.getAbstractAssignBound_Expression();
}
return super.getStructuralFeature(object);
}
/**
* This is just a workaround to keep the AssignCategory from changing too much.
* @param model the model object
*/
public void setInput (EObject model) {
basicSetInput(model);
addAllAdapters();
Object language = selectedExpressionLanguage ();
if (language == NO_EXPRESSION) {
doChooseExpressionLanguage ( SAME_AS_PARENT );
}
}
@Override
protected final void createClient(Composite parent) {
// ugly HACK to make subclasses work
//FlatFormLayout layout = new FlatFormLayout();
//layout.marginHeight = layout.marginWidth = 0;
//parent.setLayout(layout);
FillLayout fillLayout = new FillLayout();
fillLayout.marginHeight = fillLayout.marginWidth = 0;
parent.setLayout(fillLayout);
super.createClient(parent);
}
}