/*******************************************************************************
* Copyright (c) 2007 Spring IDE Developers
* 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:
* Spring IDE Developers - initial API and implementation
*******************************************************************************/
package org.springframework.ide.eclipse.webflow.ui.graph.properties;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import org.eclipse.gef.editparts.AbstractConnectionEditPart;
import org.eclipse.gef.ui.actions.ActionRegistry;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.text.Assert;
import org.eclipse.jface.viewers.DecoratingLabelProvider;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
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.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.ElementListSelectionDialog;
import org.eclipse.ui.views.properties.tabbed.AbstractPropertySection;
import org.eclipse.ui.views.properties.tabbed.ITabbedPropertyConstants;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage;
import org.springframework.ide.eclipse.webflow.core.internal.model.WebflowModelXmlUtils;
import org.springframework.ide.eclipse.webflow.core.model.ICloneableModelElement;
import org.springframework.ide.eclipse.webflow.core.model.IState;
import org.springframework.ide.eclipse.webflow.core.model.IStateTransition;
import org.springframework.ide.eclipse.webflow.core.model.ITransitionableTo;
import org.springframework.ide.eclipse.webflow.core.model.IWebflowModelElement;
import org.springframework.ide.eclipse.webflow.core.model.IWebflowState;
import org.springframework.ide.eclipse.webflow.ui.graph.actions.EditPropertiesAction;
import org.springframework.ide.eclipse.webflow.ui.graph.commands.EditPropertiesCommand;
import org.springframework.ide.eclipse.webflow.ui.graph.model.WebflowModelLabelDecorator;
import org.springframework.ide.eclipse.webflow.ui.graph.model.WebflowModelLabelProvider;
/**
* @author Christian Dupuis
* @since 2.0
*/
public class StateTransitionSection extends AbstractPropertySection implements
PropertyChangeListener {
/**
*
*/
private Text onText;
/**
*
*/
private Text toText;
/**
*
*/
private Button browseStateButton;
/**
*
*/
private IStateTransition stateTransition;
/**
*
*/
private IStateTransition oldStateTransition;
/**
*
*/
private ModifyListener listener = new ModifyListener() {
public void modifyText(ModifyEvent arg0) {
IEditorPart editor = PlatformUI.getWorkbench()
.getActiveWorkbenchWindow().getActivePage()
.getActiveEditor();
ActionRegistry actionRegistry = (ActionRegistry) editor
.getAdapter(ActionRegistry.class);
EditPropertiesAction action = (EditPropertiesAction) actionRegistry
.getAction(EditPropertiesAction.EDITPROPERTIES);
action.setOpenDialog(false);
EditPropertiesCommand command = new EditPropertiesCommand();
IStateTransition clone = null;
if (stateTransition instanceof ICloneableModelElement) {
clone = (IStateTransition) ((ICloneableModelElement) stateTransition)
.cloneModelElement();
}
clone.setOn(onText.getText());
command
.setChild(
(ICloneableModelElement<IWebflowModelElement>) stateTransition,
clone);
if (action != null) {
stateTransition
.removePropertyChangeListener(StateTransitionSection.this);
action.runWithCommand(command);
stateTransition
.addPropertyChangeListener(StateTransitionSection.this);
}
}
};
/**
*
*/
private ModifyListener toStateListener = new ModifyListener() {
public void modifyText(ModifyEvent arg0) {
IEditorPart editor = PlatformUI.getWorkbench()
.getActiveWorkbenchWindow().getActivePage()
.getActiveEditor();
ActionRegistry actionRegistry = (ActionRegistry) editor
.getAdapter(ActionRegistry.class);
EditPropertiesAction action = (EditPropertiesAction) actionRegistry
.getAction(EditPropertiesAction.EDITPROPERTIES);
action.setOpenDialog(false);
EditPropertiesCommand command = new EditPropertiesCommand();
IState state = WebflowModelXmlUtils.getStateById(
(IWebflowState) stateTransition.getElementParent()
.getElementParent(), toText.getText());
command.setNewTarget((ITransitionableTo) state);
command
.setChild((ICloneableModelElement<IWebflowModelElement>) stateTransition);
command.setOnlyReconnect(true);
if (action != null) {
stateTransition
.removePropertyChangeListener(StateTransitionSection.this);
action.runWithCommand(command);
stateTransition
.addPropertyChangeListener(StateTransitionSection.this);
}
}
};
/* (non-Javadoc)
* @see org.eclipse.ui.views.properties.tabbed.AbstractPropertySection#createControls(org.eclipse.swt.widgets.Composite, org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage)
*/
public void createControls(Composite parent,
TabbedPropertySheetPage aTabbedPropertySheetPage) {
super.createControls(parent, aTabbedPropertySheetPage);
Composite composite = getWidgetFactory()
.createFlatFormComposite(parent);
FormData data;
onText = getWidgetFactory().createText(composite, ""); //$NON-NLS-1$
data = new FormData();
data.left = new FormAttachment(0, STANDARD_LABEL_WIDTH);
data.right = new FormAttachment(100, 0);
data.top = new FormAttachment(0, ITabbedPropertyConstants.VSPACE);
onText.setLayoutData(data);
onText.addModifyListener(listener);
CLabel labelLabel = getWidgetFactory().createCLabel(composite,
"Event id:"); //$NON-NLS-1$
data = new FormData();
data.left = new FormAttachment(0, 0);
data.right = new FormAttachment(onText,
-ITabbedPropertyConstants.HSPACE);
data.top = new FormAttachment(onText, 0, SWT.CENTER);
labelLabel.setLayoutData(data);
browseStateButton = getWidgetFactory().createButton(composite,
"...", SWT.PUSH); //$NON-NLS-1$
data = new FormData();
data.left = new FormAttachment(96, 0);
data.right = new FormAttachment(100, 0);
data.top = new FormAttachment(labelLabel,
ITabbedPropertyConstants.VSPACE);
browseStateButton.setLayoutData(data);
browseStateButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
handleSelectionChanged();
}
});
toText = getWidgetFactory().createText(composite, ""); //$NON-NLS-1$
data = new FormData();
toText.setEditable(false);
data.left = new FormAttachment(0, STANDARD_LABEL_WIDTH);
data.right = new FormAttachment(95, 0);
data.top = new FormAttachment(browseStateButton, 0, SWT.CENTER);
toText.setLayoutData(data);
toText.addModifyListener(toStateListener);
CLabel comboLabel = getWidgetFactory().createCLabel(composite,
"To State id:"); //$NON-NLS-1$
data = new FormData();
data.left = new FormAttachment(0, 0);
data.right = new FormAttachment(toText,
-ITabbedPropertyConstants.HSPACE);
data.top = new FormAttachment(browseStateButton, 0, SWT.CENTER);
comboLabel.setLayoutData(data);
}
/**
*
*/
protected void handleSelectionChanged() {
ElementListSelectionDialog dialog = new ElementListSelectionDialog(
getPart().getSite().getShell(), new DecoratingLabelProvider(
new WebflowModelLabelProvider(),
new WebflowModelLabelDecorator()));
dialog.setBlockOnOpen(true);
dialog.setElements(WebflowModelXmlUtils.getStates(
(IWebflowModelElement) this.stateTransition.getElementParent(), false).toArray());
dialog.setEmptySelectionMessage("Enter a valid state id");
dialog.setTitle("State reference");
dialog.setMessage("Please select a state reference");
dialog.setMultipleSelection(false);
if (Dialog.OK == dialog.open()) {
this.toText.setText(((IState) dialog.getFirstResult()).getId());
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.views.properties.tabbed.AbstractPropertySection#setInput(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
*/
public void setInput(IWorkbenchPart part, ISelection selection) {
super.setInput(part, selection);
Assert.isTrue(selection instanceof IStructuredSelection);
Object input = ((IStructuredSelection) selection).getFirstElement();
if (oldStateTransition != null) {
oldStateTransition.removePropertyChangeListener(this);
}
if (input instanceof AbstractConnectionEditPart
&& ((AbstractConnectionEditPart) input).getModel() instanceof IStateTransition) {
stateTransition = (IStateTransition) ((AbstractConnectionEditPart) input)
.getModel();
stateTransition.addPropertyChangeListener(this);
oldStateTransition = stateTransition;
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.views.properties.tabbed.AbstractPropertySection#refresh()
*/
public void refresh() {
onText.removeModifyListener(listener);
toText.removeModifyListener(toStateListener);
if (stateTransition.getOn() != null) {
onText.setText(stateTransition.getOn());
}
if (stateTransition.getToState() != null) {
toText.setText(stateTransition.getToState().getId());
}
onText.addModifyListener(listener);
toText.addModifyListener(toStateListener);
}
/* (non-Javadoc)
* @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)
*/
public void propertyChange(PropertyChangeEvent evt) {
refresh();
}
/* (non-Javadoc)
* @see org.eclipse.ui.views.properties.tabbed.AbstractPropertySection#dispose()
*/
public void dispose() {
if (stateTransition != null) {
stateTransition.removePropertyChangeListener(this);
}
super.dispose();
}
}