org.jboss.tools.openshift.cdk.server.ui.internal.dialogs.ChooseServerDialog.java Source code

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Here is the source code for org.jboss.tools.openshift.cdk.server.ui.internal.dialogs.ChooseServerDialog.java

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/******************************************************************************* 
 * Copyright (c) 2015 Red Hat, Inc. 
 * Distributed under license by Red Hat, Inc. All rights reserved. 
 * This program is 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: 
 * Red Hat, Inc. - initial API and implementation 
 ******************************************************************************/
package org.jboss.tools.openshift.cdk.server.ui.internal.dialogs;

import java.util.ArrayList;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
import org.eclipse.wst.server.core.IServer;
import org.eclipse.wst.server.ui.internal.ImageResource;

public class ChooseServerDialog extends Dialog {
    private ArrayList<IServer> valid;
    private IServer selected;

    public ChooseServerDialog(Shell parentShell, ArrayList<IServer> valid) {
        super(parentShell);
        this.valid = valid;
    }

    @Override
    protected Control createDialogArea(Composite parent) {
        Composite container = (Composite) super.createDialogArea(parent);
        final TreeViewer tv = new TreeViewer(container);
        tv.setContentProvider(new ITreeContentProvider() {
            @Override
            public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
            }

            @Override
            public void dispose() {
            }

            @Override
            public boolean hasChildren(Object element) {
                return false;
            }

            @Override
            public Object getParent(Object element) {
                return null;
            }

            @Override
            public Object[] getElements(Object inputElement) {
                return (IServer[]) valid.toArray(new IServer[valid.size()]);
            }

            @Override
            public Object[] getChildren(Object parentElement) {
                return null;
            }
        });
        tv.setLabelProvider(new LabelProvider() {
            @Override
            public Image getImage(Object element) {
                if (element instanceof IServer)
                    return ImageResource.getImage(((IServer) element).getServerType().getId());
                return super.getImage(element);
            }

            @Override
            public String getText(Object element) {
                if (element instanceof IServer)
                    return ((IServer) element).getName();
                return super.getText(element);
            }
        });

        tv.addSelectionChangedListener(new ISelectionChangedListener() {
            @Override
            public void selectionChanged(SelectionChangedEvent event) {
                selected = null;
                ISelection sel = tv.getSelection();
                if (sel instanceof IStructuredSelection) {
                    Object first = ((IStructuredSelection) sel).getFirstElement();
                    if (first instanceof IServer) {
                        selected = (IServer) first;
                    }
                }
                getButton(IDialogConstants.OK_ID).setEnabled(selected != null);
            }
        });
        tv.getTree().setLayoutData(new GridData(GridData.FILL_BOTH));
        tv.setInput(PlatformUI.getWorkbench());
        return container;
    }

    @Override
    protected Control createButtonBar(Composite parent) {
        Control c = super.createButtonBar(parent);
        getButton(IDialogConstants.OK_ID).setEnabled(false);
        return c;
    }

    @Override
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText("Select a CDK Server");
    }

    public IServer getServer() {
        return selected;
    }

    @Override
    protected Point getInitialSize() {
        return new Point(450, 300);
    }
}