org.eclipse.osbp.preferences.ui.page/src/org/eclipse/osbp/preferences/ui/component/FileOpenCallEditor.java

/**
 *                                                                            
 * Copyright (c) 2011, 2016 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 *                                                                            
 * All rights reserved. This program and the accompanying materials           
 * are made available under the terms of the Eclipse Public License 2.0        
 * which accompanies this distribution, and is available at                  
 * https://www.eclipse.org/legal/epl-2.0/                                 
 *                                 
 * SPDX-License-Identifier: EPL-2.0                                 
 *                                                                            
 * Contributors:   
 * Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation 
 */
package org.eclipse.osbp.preferences.ui.component;

import java.io.File;

import org.eclipse.core.filesystem.EFS;
import org.eclipse.core.filesystem.IFileStore;
import org.eclipse.jface.preference.FieldEditor;
import org.eclipse.jface.util.Assert;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.FocusAdapter;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.ide.IDE;
import org.eclipse.ui.internal.ide.dialogs.IFileStoreFilter;

public class FileOpenCallEditor extends FieldEditor {

	private boolean isValid;
	private String oldValue;
	private String compTitle;
	private Label title;
	private Button fileOpenButton;

	protected FileOpenCallEditor() {
	}

	public FileOpenCallEditor(String name, String labelText, Composite parent) {
		init(name, labelText);
		createControl(parent);
	}

	protected boolean checkState() {
		return true;
	}

	protected boolean doCheckState() {
		return true;
	}

	@Override
	protected void doFillIntoGrid(Composite parent, int numColumns) {
		title = new Label(parent, SWT.UP);
		title.setFont(parent.getFont());
		title.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING));
		title.setVisible(false);

		fileOpenButton = new Button(parent, SWT.PUSH);
		GridData gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.widthHint = 100;
		fileOpenButton.setLayoutData(gd);
		fileOpenButton.setFont(parent.getFont());
		fileOpenButton.setText(getLabelText());
		fileOpenButton.addSelectionListener(new SelectionListener() {
			
			@Override
			public void widgetSelected(SelectionEvent e) {
				String fileName = getPreferenceStore().getString(getPreferenceName());
				File fileToOpen = new File(fileName);

				if (fileToOpen.exists() && fileToOpen.isFile()) {
				    IFileStore fileStore = EFS.getLocalFileSystem().getStore(fileToOpen.toURI());
				    IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
			        try {
						IDE.openEditorOnFileStore( page, fileStore );
					}
			        catch (PartInitException e1) {
						e1.printStackTrace();
					}
				}
			}
			
			@Override
			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});
	}

	@Override
	protected void doLoad() {
	}

	@Override
	protected void doLoadDefault() {
	}

	@Override
	protected void doStore() {
	}

	@Override
	public int getNumberOfControls() {
		return 2;
	}

	public String getStringValue() {
		return null;
	}

	@Override
	public boolean isValid() {
		return true;
	}

	@Override
	protected void adjustForNumColumns(int numColumns) {
	}
}