net.sf.eclipsensis.wizard.settings.dialogs.NSISContentBrowserDialog.java Source code

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Here is the source code for net.sf.eclipsensis.wizard.settings.dialogs.NSISContentBrowserDialog.java

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/*******************************************************************************
 * Copyright (c) 2004-2010 Sunil Kamath (IcemanK).
 * All rights reserved.
 * This program is made available under the terms of the Common Public License
 * v1.0 which is available at http://www.eclipse.org/legal/cpl-v10.html
 *
 * Contributors:
 *     Sunil Kamath (IcemanK) - initial API and implementation
 *******************************************************************************/
package net.sf.eclipsensis.wizard.settings.dialogs;

import java.util.*;

import net.sf.eclipsensis.EclipseNSISPlugin;
import net.sf.eclipsensis.wizard.settings.*;
import net.sf.eclipsensis.wizard.util.NSISWizardDialogUtil;

import org.eclipse.jface.dialogs.*;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.*;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.*;

public class NSISContentBrowserDialog extends Dialog {
    private NSISWizardSettings mSettings = null;
    private INSISInstallElement mElement = null;
    private HashSet<String> mTypes = new HashSet<String>(Arrays.asList(new String[] { NSISInstallDirectory.TYPE,
            NSISInstallFile.TYPE, NSISInstallFiles.FileItem.FILEITEM_TYPE }));

    /**
     * @param parentShell
     */
    public NSISContentBrowserDialog(Shell parentShell, NSISWizardSettings settings) {
        super(parentShell);
        setShellStyle(getShellStyle() | SWT.RESIZE);
        mSettings = settings;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
     */
    @Override
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText(EclipseNSISPlugin.getResourceString("wizard.content.browser.title")); //$NON-NLS-1$
        Composite parent = newShell.getParent();
        if (parent != null) {
            Point point = parent.toDisplay(0, 0);
            newShell.setBounds(point.x, point.y, 400, 400);
        } else {
            newShell.setSize(400, 400);
        }
        newShell.setImage(EclipseNSISPlugin.getShellImage());
    }

    /**
     * @return Returns the selected element.
     */
    public INSISInstallElement getSelectedElement() {
        return mElement;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.Dialog#cancelPressed()
     */
    @Override
    protected void cancelPressed() {
        mElement = null;
        super.cancelPressed();
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
     */
    @Override
    protected Control createDialogArea(Composite parent) {
        Composite composite = (Composite) super.createDialogArea(parent);
        NSISWizardDialogUtil.createLabel(composite, "wizard.select.shortcut.message", true, null, false); //$NON-NLS-1$

        ViewerFilter vf = new ViewerFilter() {
            private HashSet<String> mFilterTypes = new HashSet<String>(Arrays.asList(new String[] {
                    NSISInstaller.TYPE, NSISSectionGroup.TYPE, NSISSection.TYPE, NSISInstallDirectory.TYPE,
                    NSISInstallFile.TYPE, NSISInstallFiles.TYPE, NSISInstallFiles.FileItem.FILEITEM_TYPE }));

            @Override
            public boolean select(Viewer viewer, Object parentElement, Object element) {
                if (element instanceof INSISInstallElement) {
                    return mFilterTypes.contains(((INSISInstallElement) element).getType());
                }
                return false;
            }
        };
        final Tree tree = new Tree(composite, SWT.BORDER);
        GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
        tree.setLayoutData(gd);
        final TreeViewer tv = new TreeViewer(tree);
        tv.setLabelProvider(new NSISInstallElementLabelProvider());
        tv.setContentProvider(new NSISInstallElementTreeContentProvider(mSettings));
        tv.addSelectionChangedListener(new ISelectionChangedListener() {
            public void selectionChanged(SelectionChangedEvent event) {
                getButton(IDialogConstants.OK_ID).setEnabled(setElement(event.getSelection()));
            }
        });
        tree.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetDefaultSelected(SelectionEvent e) {
                if (setElement(tv.getSelection())) {
                    buttonPressed(IDialogConstants.OK_ID);
                }
            }
        });
        tv.setAutoExpandLevel(2);
        tv.addFilter(vf);
        tv.setInput(mSettings);

        return composite;
    }

    private boolean setElement(ISelection sel) {
        boolean ok = false;
        mElement = null;
        if (!sel.isEmpty() && sel instanceof IStructuredSelection) {
            IStructuredSelection ssel = (IStructuredSelection) sel;
            if (ssel.size() == 1) {
                Object obj = ssel.getFirstElement();
                if (obj instanceof INSISInstallElement && mTypes.contains(((INSISInstallElement) obj).getType())) {
                    mElement = (INSISInstallElement) obj;
                    ok = true;
                }
            }
        }
        return ok;
    }
}