EditRuntimePathDialog.java

/*************************************************************************************
 * Copyright (c) 2010-2011 Red Hat, 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:
 *     JBoss by Red Hat - Initial implementation.
 ************************************************************************************/
package org.jboss.tools.runtime.ui.internal.dialogs;

import java.io.File;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.viewers.CheckStateChangedEvent;
import org.eclipse.jface.viewers.ICheckStateListener;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
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.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.DirectoryDialog;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.jboss.tools.runtime.core.model.RuntimeDefinition;
import org.jboss.tools.runtime.core.model.RuntimePath;
import org.jboss.tools.runtime.ui.RuntimeUIActivator;
import org.jboss.tools.runtime.ui.internal.Messages;
import org.jboss.tools.runtime.ui.internal.preferences.JBossRuntimePreferencesInitializer;

/**
 * @author snjeza
 * 
 */
public class EditRuntimePathDialog extends Dialog {
	
	private RuntimePath runtimePath;
	private RuntimeCheckboxTreeViewer treeViewer;

	public EditRuntimePathDialog(Shell parentShell, RuntimePath runtimePath) {
		super(parentShell);
		setShellStyle(SWT.CLOSE | SWT.MAX | SWT.TITLE | SWT.BORDER
				| SWT.RESIZE | getDefaultOrientation());
		this.runtimePath = runtimePath;
	}

	@Override
	protected Control createDialogArea(Composite parent) {
		getShell().setText(Messages.EditRuntimePathDialog_Edit_runtime_detection_path);
		Composite area = (Composite) super.createDialogArea(parent);
		Composite contents = new Composite(area, SWT.NONE);
		GridData gd = new GridData(GridData.FILL_BOTH);
		gd.heightHint = 400;
		gd.widthHint = 700;
		contents.setLayoutData(gd);
		contents.setLayout(new GridLayout(1, false));
		applyDialogFont(contents);
		initializeDialogUnits(area);

		Composite pathComposite = new Composite(contents, SWT.NONE);
		gd = new GridData(SWT.FILL, SWT.FILL, true, false);
		pathComposite.setLayoutData(gd);
		pathComposite.setLayout(new GridLayout(3, false));
		Label pathLabel = new Label(pathComposite, SWT.NONE);
		pathLabel.setText(Messages.EditRuntimePathDialog_Path);
		
		final Text pathText = new Text(pathComposite, SWT.BORDER);
		gd = new GridData(SWT.FILL, SWT.FILL, true, false);
		pathText.setLayoutData(gd);
		pathText.setText(runtimePath.getPath());
		
		Button browseButton = new Button(pathComposite, SWT.NONE);
		browseButton.setText(Messages.EditRuntimePathDialog_Browse);
		browseButton.addSelectionListener(new SelectionAdapter() {

			@Override
			public void widgetSelected(SelectionEvent e) {
				IDialogSettings dialogSettings = RuntimeUIActivator.getDefault().getDialogSettings();
				
				DirectoryDialog dialog = new DirectoryDialog(getShell());
				dialog.setMessage(Messages.EditRuntimePathDialog_Edit_Path);
				dialog.setFilterPath(pathText.getText());
				final String path = dialog.open();
				if (path == null) {
					return;
				}
				runtimePath.setPath(path);
				dialogSettings.put(JBossRuntimePreferencesInitializer.LASTPATH, path);
				pathText.setText(path);
				refreshRuntimes(getShell(), 
						new RuntimePath[]{runtimePath}, treeViewer, false);
			}
		
		});
		
		Label refreshLabel = new Label(pathComposite, SWT.NONE);
		gd = new GridData(SWT.FILL, SWT.FILL, true, false);
		gd.horizontalSpan = 2;
		refreshLabel.setLayoutData(gd);
		refreshLabel.setText(Messages.EditRuntimePathDialog_Runtimes_found_at_this_path);
		
		final Button refreshButton = new Button(pathComposite, SWT.NONE);
		refreshButton.setText(Messages.EditRuntimePathDialog_Refresh);
		refreshButton.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				refreshRuntimes(getShell(), 
						new RuntimePath[]{runtimePath}, treeViewer, false);
			}
		});
		
		pathText.addModifyListener(new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				runtimePath.setPath(pathText.getText());
				if (!pathText.getText().isEmpty()) {
					refreshButton.setEnabled( (new File(pathText.getText()).isDirectory()) );
				}
			}
		});
		refreshButton.setEnabled( (new File(pathText.getText()).isDirectory()) );
		
		treeViewer = createRuntimeViewer(new RuntimePath[]{runtimePath}, contents, 100);
		treeViewer.addCheckStateListener(new ICheckStateListener() {
			public void checkStateChanged(CheckStateChangedEvent event) {
				RuntimeDefinition definition = (RuntimeDefinition) event.getElement();
				definition.setEnabled(!definition.isEnabled());
			}
		});
		return area;
	}
	
	private RuntimeCheckboxTreeViewer createRuntimeViewer(final RuntimePath[] runtimePaths2, Composite composite, int heightHint) {
		return new RuntimeCheckboxTreeViewer(composite, runtimePaths2, heightHint);
	}
	
	public static void refreshRuntimes(Shell shell, final RuntimePath[] runtimePaths, 
			final RuntimeCheckboxTreeViewer viewer, boolean needRefresh) {
		SearchRuntimePathDialog dialog = SearchRuntimePathDialog.launchSearchRuntimePathDialog(
				shell, runtimePaths, needRefresh, 15);
		if (viewer != null) {
			dialog.getShell().addDisposeListener(new DisposeListener() {
				public void widgetDisposed(DisposeEvent e) {
					viewer.updateInput(runtimePaths);
				}
			});
		}
	}
}