org.eclipse.jst.pagedesigner.properties.celleditors.CSSDialogCellEditor.java Source code

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Here is the source code for org.eclipse.jst.pagedesigner.properties.celleditors.CSSDialogCellEditor.java

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/*******************************************************************************
 * Copyright (c) 2006 Sybase, 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:
 *     Sybase, Inc. - initial API and implementation
 *******************************************************************************/
package org.eclipse.jst.pagedesigner.properties.celleditors;

import org.eclipse.jface.preference.PreferenceManager;
import org.eclipse.jface.window.Window;
import org.eclipse.jst.pagedesigner.commands.single.ChangeStyleCommand;
import org.eclipse.jst.pagedesigner.editors.properties.IPropertyPageDescriptor;
import org.eclipse.jst.pagedesigner.ui.dialogs.StyleDialog;
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.css.core.internal.provisional.document.ICSSStyleDeclaration;
import org.eclipse.wst.css.core.internal.util.declaration.CSSPropertyContext;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement;

/**
 * A css dialog cell editor
 *
 */
public class CSSDialogCellEditor extends EditableDialogCellEditor {
    private IDOMElement _element;
    private IPropertyPageDescriptor _attr;

    /**
     * @param parent
     * @param attr 
     * @param element 
     */
    public CSSDialogCellEditor(Composite parent, IPropertyPageDescriptor attr, IDOMElement element) {
        super(parent);
        _element = element;
        _attr = attr;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.viewers.DialogCellEditor#openDialogBox(org.eclipse.swt.widgets.Control)
     */
    protected Object openDialogBox(Control cellEditorWindow) {
        final ICSSStyleDeclaration styleDeclaration = CSSStyleDeclarationFactory.getInstance()
                .getStyleDeclaration(_element, _attr.getAttributeName());

        final PreferenceManager manager = new PreferenceManager();
        final Shell shell = cellEditorWindow.getShell();

        final CSSPropertyContext context = new CSSPropertyContext(styleDeclaration);
        final StyleDialog dialog = new StyleDialog(shell, manager, _element, context);
        if (dialog.open() == Window.OK) {
            if (context.isModified()) {
                PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() {
                    public void run() {
                        final ChangeStyleCommand c = new ChangeStyleCommand(_element, _attr.getAttributeName(),
                                context);
                        c.execute();
                    }
                });
            }
        }

        String style = (_element == null ? null : _element.getAttribute(_attr.getAttributeName()));
        return style == null ? "" : style; //$NON-NLS-1$
    }
}