/******************************************************************************* | |
* 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.dialogs; | |
import org.eclipse.bpel.ui.Messages; | |
import org.eclipse.core.runtime.IProgressMonitor; | |
import org.eclipse.core.runtime.IStatus; | |
import org.eclipse.core.runtime.Status; | |
import org.eclipse.jface.dialogs.MessageDialog; | |
import org.eclipse.jface.viewers.ILabelProvider; | |
import org.eclipse.swt.SWT; | |
import org.eclipse.swt.events.ModifyEvent; | |
import org.eclipse.swt.events.ModifyListener; | |
import org.eclipse.swt.events.SelectionEvent; | |
import org.eclipse.swt.events.SelectionListener; | |
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.Display; | |
import org.eclipse.swt.widgets.Shell; | |
import org.eclipse.swt.widgets.Text; | |
import org.eclipse.ui.dialogs.TwoPaneElementSelector; | |
import org.eclipse.ui.progress.WorkbenchJob; | |
/** | |
* A selection dialog that also lets the user create a new element. | |
*/ | |
public class SelectionAndCreationDialog extends TwoPaneElementSelector { | |
protected boolean allowCreateNewArtifact; | |
public SelectionAndCreationDialog(Shell parent, ILabelProvider elementRenderer, ILabelProvider qualifierRenderer) { | |
super(parent, elementRenderer, qualifierRenderer); | |
allowCreateNewArtifact = true; | |
} | |
@Override | |
protected Text createFilterText(Composite parent) { | |
Composite newComposite = new Composite(parent, SWT.NONE); | |
GridLayout layout = new GridLayout(2, false); | |
layout.marginHeight = 0; | |
layout.marginWidth = 0; | |
newComposite.setLayout(layout); | |
newComposite.setLayoutData(new GridData(GridData.FILL_BOTH)); | |
Text filterText = super.createFilterText(newComposite); | |
((GridData)filterText.getLayoutData()).verticalAlignment = GridData.VERTICAL_ALIGN_CENTER; | |
filterText.addModifyListener(new ModifyListener() { | |
public void modifyText(ModifyEvent e) { | |
// We need to run the update in a job because the selection also | |
// runs in a job and we have to update the OK button status only | |
// after the selection is updated. | |
WorkbenchJob job = new WorkbenchJob(Display.getCurrent(), "") { //$NON-NLS-1$ | |
@Override | |
public IStatus runInUIThread(IProgressMonitor monitor) { | |
updateOkState(); | |
return Status.OK_STATUS; | |
} | |
}; | |
job.schedule(); | |
} | |
}); | |
if (allowCreateNewArtifact) { | |
Button button = new Button(newComposite, SWT.PUSH); | |
button.setFont(newComposite.getFont()); | |
button.setText(Messages.SelectionAndCreationDialog_New_1); | |
GridData data = new GridData(); | |
data.verticalAlignment = GridData.VERTICAL_ALIGN_CENTER; | |
button.setLayoutData(data); | |
button.addSelectionListener(new SelectionListener() { | |
public void widgetSelected(SelectionEvent e) { | |
handleNewButtonPushed(); | |
} | |
public void widgetDefaultSelected(SelectionEvent e) { | |
// do nothing | |
} | |
}); | |
} | |
return filterText; | |
} | |
/** | |
* Called when the user pushes the "New..." button. | |
*/ | |
protected void handleNewButtonPushed() { | |
} | |
/** | |
* Sets whether this dialog should have a "New..." button. | |
*/ | |
public void setAllowCreateNewArtifact(boolean allowCreateNewArtifact) { | |
this.allowCreateNewArtifact = allowCreateNewArtifact; | |
} | |
@Override | |
protected void okPressed() { | |
// check if there's a selection | |
if (getSelectedElements().length == 0) { | |
// We can get into the state of not having a selection due to timing issues. | |
// The enablement of the OK button is based on a selection. Selections can | |
// depend on the table being updated and that is done in a background thread | |
// for performance reasons. Sometimes (not often) the user can get into a state | |
// where the OK button is enabled but there are no selections. If the user hits | |
// OK we have to at least show a dialog saying that no selections were made so | |
// we can't close the dialog using the OK button. | |
MessageDialog.openError(getShell(), Messages.SelectionAndCreationDialog_Error_2, Messages.SelectionAndCreationDialog_No_elements_were_selected_3); | |
return; | |
} | |
super.okPressed(); | |
} | |
} |