com.iw.plugins.spindle.ui.ChooseFromNamespaceDialog.java Source code

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Here is the source code for com.iw.plugins.spindle.ui.ChooseFromNamespaceDialog.java

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/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Spindle, an Eclipse Plugin for Tapestry.
 *
 * The Initial Developer of the Original Code is
 * Intelligent Works Incorporated.
 * Portions created by the Initial Developer are Copyright (C) 2002
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * 
 *  glongman@intelligentworks.com
 *
 * ***** END LICENSE BLOCK ***** */
package com.iw.plugins.spindle.ui;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;

import com.iw.plugins.spindle.TapestryImages;
import com.iw.plugins.spindle.project.ITapestryProject;
import com.iw.plugins.spindle.util.lookup.ILookupAcceptor;
import com.iw.plugins.spindle.util.lookup.INamespaceFragment;

public class ChooseFromNamespaceDialog extends TitleAreaDialog
        implements ISelectionChangedListener, IDoubleClickListener {

    private ChooseFromNamespaceWidget chooserWidget;
    private String title;
    private String description;

    public ChooseFromNamespaceDialog(Shell shell, ITapestryProject project, String windowTitle, String description,
            int acceptFlags) {

        super(shell);
        this.title = title == null ? "" : title;
        this.description = description == null ? "" : description;
        chooserWidget = new ChooseFromNamespaceWidget(project, acceptFlags);

        chooserWidget.addSelectionChangedListener(this);
        chooserWidget.addDoubleClickListener(this);

    }

    public void create() {
        super.create();
        setTitle(title);
        setMessage(description, IMessageProvider.NONE);
        chooserWidget.setFocus();
        chooserWidget.refresh();
        updateOkState();
    }

    /**
     * @see AbstractDialog#performCancel()
     */
    protected boolean performCancel() {
        setReturnCode(CANCEL);
        return true;

    }

    protected void okPressed() {
        setReturnCode(OK);
        hardClose();
    }

    protected boolean hardClose() {
        // dispose any contained stuff
        chooserWidget.dispose();
        return super.close();
    }

    protected Control createDialogArea(Composite parent) {
        Composite container = (Composite) super.createDialogArea(parent);
        Composite useContainer = new Composite(container, SWT.NONE);
        FillLayout layout = new FillLayout();
        useContainer.setLayout(layout);
        useContainer.setLayoutData(new GridData(GridData.FILL_BOTH));
        chooserWidget.createControl(useContainer);
        final int flags = chooserWidget.getAcceptFlags();
        switch (flags) {
        case ILookupAcceptor.ACCEPT_COMPONENTS:
            setTitleImage(TapestryImages.getSharedImage("componentDialog.gif"));
            break;
        case ILookupAcceptor.ACCEPT_PAGES:
            setTitleImage(TapestryImages.getSharedImage("componentDialog.gif"));
            break;
        default:
            setTitleImage(TapestryImages.getSharedImage("applicationDialog.gif"));
            break;
        }
        return container;
    }

    private void updateOkState() {
        Button okButton = getButton(IDialogConstants.OK_ID);
        if (okButton != null) {
            ISelection selection = chooserWidget.getSelection();
            okButton.setEnabled(selection != null && !selection.isEmpty());
        }
    }

    public String getResultString() {
        return chooserWidget.getResultString();
    }

    public INamespaceFragment getResultNamespace() {
        return chooserWidget.getResultNamespace();
    }

    public String getResultPath() {
        return chooserWidget.getResultPath();
    }

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

    /**
     * @see org.eclipse.jface.viewers.IDoubleClickListener#doubleClick(DoubleClickEvent)
     */
    public void doubleClick(DoubleClickEvent event) {

        ISelection selection = chooserWidget.getSelection();
        if (selection != null && !selection.isEmpty()) {

            buttonPressed(IDialogConstants.OK_ID);

        }

    }

}