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/*******************************************************************************
* Copyright (c) 2004, 2005 Sybase, Inc. 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:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.jsf.facesconfig.ui.pageflow.properties.section;
import java.util.EventObject;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.emf.ecore.EAttribute;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.commands.CommandStack;
import org.eclipse.gef.commands.CommandStackListener;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jst.jsf.common.ui.internal.dialogfield.DialogField;
import org.eclipse.jst.jsf.common.ui.internal.dialogfield.IDialogFieldChangeListener;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.views.properties.IPropertySource;
import org.eclipse.ui.views.properties.tabbed.AbstractPropertySection;
/**
* This is base section, which support GEF command stack to redo/undo setting
* properties.
*
* @author jchoi, Xiao-guang Zhang
*/
/*package*/ abstract class AbstractEditPartSection extends AbstractPropertySection {
IDialogFieldChangeListener changeListener = new IDialogFieldChangeListener() {
public void dialogFieldChanged(DialogField field) {
validate();
}
};
/** property source of edit part */
private IPropertySource propertySource;
/** EditPart instance */
private EditPart editPart;
/** map for property registry to store a map between the property id and name */
private Map propertyRegistry;
/** GEF command stack */
private CommandStack commandStack;
/** command stack listener to refresh the section */
private CommandStackListener commandStackListener;
/**
*
*/
public AbstractEditPartSection() {
super();
}
/**
* refresh the whole section
*
*/
public void refreshData() {
super.refresh();
}
/**
* TODO: this method seems unused
*/
public abstract void validate();
/**
* dispose the command stack listener
*/
public void dispose() {
super.dispose();
if (getCommandStack() != null) {
getCommandStack().removeCommandStackListener(
getCommandStackListener());
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.wst.common.ui.properties.internal.provisional.ISection#setInput(org.eclipse.ui.IWorkbenchPart,
* org.eclipse.jface.viewers.ISelection)
*/
public void setInput(IWorkbenchPart part, ISelection selection) {
if (part != null) {
if (part.getAdapter(CommandStack.class) != null) {
setCommandStack((CommandStack) part
.getAdapter(CommandStack.class));
}
if (selection instanceof StructuredSelection) {
StructuredSelection structuredSelection = (StructuredSelection) selection;
if (structuredSelection.getFirstElement() instanceof EditPart) {
editPart = (EditPart) structuredSelection.getFirstElement();
}
if (editPart != null
&& ((IAdaptable) editPart)
.getAdapter(IPropertySource.class) != null) {
propertySource = (IPropertySource) ((IAdaptable) editPart)
.getAdapter(IPropertySource.class);
}
}
}
super.setInput(part, selection);
}
/**
* get the commandstacklistener, if not existed, create a new one.
*
* @return
*/
private CommandStackListener getCommandStackListener() {
if (commandStackListener == null) {
commandStackListener = new CommandStackListener() {
public void commandStackChanged(EventObject e) {
refreshData();
}
};
}
return commandStackListener;
}
/**
* set a <code>CommandStack</code> forthis section, and add a
* <code>CommandStackListener</code> for this commandstack
*
* @param stack
*/
public void setCommandStack(CommandStack stack) {
commandStack = stack;
stack.addCommandStackListener(getCommandStackListener());
}
/**
* get the <code>CommandStack</code>
*
* @return the command stack
*/
public CommandStack getCommandStack() {
return commandStack;
}
/**
* get the property source registered for current editpart
*
* @return the property source
*/
public IPropertySource getPropertySource() {
return propertySource;
}
/**
* get the property's EMF featureID based on property name.
*
* @param propertyName
* @return the feature id for propertyName
*/
protected Object getFeatureID(String propertyName) {
if (editPart != null && !(editPart.getModel() instanceof EObject)) {
return null;
}
Object propertyID = getPropertyRegistry().get(propertyName);
if (propertyID == null) {
EClass cls = ((EObject) editPart.getModel()).eClass();
for (Iterator it = cls.getEAllAttributes().iterator(); it.hasNext();) {
EAttribute attr = (EAttribute) it.next();
if (attr.getName().equalsIgnoreCase(propertyName)) {
propertyID = Integer.toString(attr.getFeatureID());
getPropertyRegistry().put(propertyName, propertyID);
break;
}
}
}
return propertyID;
}
/**
* @return the property registry
*/
protected Map getPropertyRegistry() {
if (propertyRegistry == null) {
propertyRegistry = new HashMap();
}
return propertyRegistry;
}
/**
* get the input edit part
*
* @return the input
*/
public Object getInput() {
return editPart;
}
/**
* set the value of property
*
* @param propertyName
* @param propertyValue
*/
public void setValue(String propertyName, Object propertyValue) {
if (propertyName != null && propertyValue != null
&& getPropertySource() != null) {
SetPropertyValueCommand setCommand = new SetPropertyValueCommand(
propertyName);
setCommand.setTarget(getPropertySource());
setCommand.setPropertyId(getFeatureID(propertyName));
setCommand.setPropertyValue(propertyValue);
if (getCommandStack() != null) {
getCommandStack().execute(setCommand);
} else {
setCommand.execute();
}
}
}
}
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