/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.uima.caseditor.ui.property;
import org.apache.uima.caseditor.CasEditorPlugin;
import org.apache.uima.caseditor.core.model.NlpProject;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.preference.StringButtonFieldEditor;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.dialogs.ElementTreeSelectionDialog;
import org.eclipse.ui.dialogs.ISelectionStatusValidator;
import org.eclipse.ui.model.BaseWorkbenchContentProvider;
import org.eclipse.ui.model.WorkbenchLabelProvider;
/**
*/
class FileFieldEditor extends StringButtonFieldEditor {
private NlpProject mProject;
private String title;
private String message;
FileFieldEditor(String name, String label, String title, String message, Composite parent,
NlpProject project) {
super(name, label, parent);
this.title = title;
this.message = message;
mProject = project;
}
@Override
protected String changePressed() {
// String currentText = getTextControl().getText();
// IFile candidateFile = mProject.getFile(currentText);
// if (!candidateFile.exists())
// {
// return null;
// }
// TODO: preselect entered text entry
final ElementTreeSelectionDialog fileSelectionDialog = new ElementTreeSelectionDialog(
getShell(), new WorkbenchLabelProvider(), new BaseWorkbenchContentProvider());
fileSelectionDialog.addFilter(new FileElementFilter());
fileSelectionDialog.setInput(mProject);
fileSelectionDialog.setTitle(title);
fileSelectionDialog.setMessage(message);
fileSelectionDialog.setValidator(new ISelectionStatusValidator() {
public IStatus validate(Object[] selection) {
if (selection.length == 1 && selection[0] instanceof IFile) {
return new Status(IStatus.OK, CasEditorPlugin.ID, 0, "", null);
}
return new Status(IStatus.ERROR, CasEditorPlugin.ID, 0, "Please select a file!", null);
}
});
fileSelectionDialog.open();
Object[] results = fileSelectionDialog.getResult();
if (results != null) {
return ((IFile) results[0]).getFullPath().removeFirstSegments(1).toString();
}
return null;
}
}