com.siteview.mde.internal.ui.dialogs.FolderSelectionDialog.java Source code

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Here is the source code for com.siteview.mde.internal.ui.dialogs.FolderSelectionDialog.java

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/*******************************************************************************
 *  Copyright (c) 2000, 2008 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 com.siteview.mde.internal.ui.dialogs;

import org.eclipse.core.resources.IContainer;
import org.eclipse.jface.viewers.*;
import org.eclipse.jface.window.Window;
import com.siteview.mde.internal.ui.IHelpContextIds;
import com.siteview.mde.internal.ui.MDEUIMessages;
import com.siteview.mde.internal.ui.util.SWTUtil;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.*;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.ElementTreeSelectionDialog;
import org.eclipse.ui.dialogs.NewFolderDialog;
import org.eclipse.ui.views.navigator.ResourceComparator;

public class FolderSelectionDialog extends ElementTreeSelectionDialog implements ISelectionChangedListener {

    private Button fNewFolderButton;
    private IContainer fSelectedContainer;

    public FolderSelectionDialog(Shell parent, ILabelProvider labelProvider, ITreeContentProvider contentProvider) {
        super(parent, labelProvider, contentProvider);
        setComparator(new ResourceComparator(ResourceComparator.NAME));
    }

    /*
     * @see org.eclipse.jface.window.Window#configureShell(Shell)
     */
    protected void configureShell(Shell shell) {
        super.configureShell(shell);
        PlatformUI.getWorkbench().getHelpSystem().setHelp(shell, IHelpContextIds.FOLDER_SELECTION_DIALOG);
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
     */
    protected Control createDialogArea(Composite parent) {
        Composite result = (Composite) super.createDialogArea(parent);

        getTreeViewer().addSelectionChangedListener(this);
        getTreeViewer().expandToLevel(2);
        fNewFolderButton = new Button(result, SWT.PUSH);
        fNewFolderButton.setText(MDEUIMessages.BuildEditor_SourceFolderSelectionDialog_button);
        fNewFolderButton.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent event) {
                newFolderButtonPressed();
            }
        });
        fNewFolderButton.setFont(parent.getFont());
        fNewFolderButton.setLayoutData(new GridData());
        SWTUtil.setButtonDimensionHint(fNewFolderButton);

        applyDialogFont(result);
        return result;
    }

    private void updateNewFolderButtonState() {
        IStructuredSelection selection = (IStructuredSelection) getTreeViewer().getSelection();
        fSelectedContainer = null;
        if (selection.size() == 1) {
            Object first = selection.getFirstElement();
            if (first instanceof IContainer) {
                fSelectedContainer = (IContainer) first;
            }
        }
        fNewFolderButton.setEnabled(fSelectedContainer != null);
    }

    protected void newFolderButtonPressed() {
        NewFolderDialog dialog = new NewFolderDialog(getShell(), fSelectedContainer);
        if (dialog.open() == Window.OK) {
            TreeViewer treeViewer = getTreeViewer();
            treeViewer.refresh(fSelectedContainer);
            Object createdFolder;
            if (dialog.getResult() != null) {
                createdFolder = dialog.getResult()[0];
                treeViewer.reveal(createdFolder);
                treeViewer.setSelection(new StructuredSelection(createdFolder));
            }
        }
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.ISelectionChangedListener#selectionChanged(org.eclipse.jface.viewers.SelectionChangedEvent)
     */
    public void selectionChanged(SelectionChangedEvent event) {
        updateNewFolderButtonState();
    }

}