com.rcpcompany.uibindings.contextAdapters.TitleAreaDialogContextMessageDecoratorAdapter.java Source code

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Here is the source code for com.rcpcompany.uibindings.contextAdapters.TitleAreaDialogContextMessageDecoratorAdapter.java

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/*******************************************************************************
 * Copyright (c) 2006-2013 The RCP Company 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:
 *     The RCP Company - initial API and implementation
 *******************************************************************************/
package com.rcpcompany.uibindings.contextAdapters;

import java.util.List;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;

import com.rcpcompany.uibindings.IBindingContext;
import com.rcpcompany.uibindings.IBindingMessage;
import com.rcpcompany.uibindings.bindingMessages.AbstractBindingMessage;

/**
 * Decoration support for a single {@link IBindingContext} based on a {@link TitleAreaDialog}.
 * 
 * @author Tonny Madsen, The RCP Company
 */
public class TitleAreaDialogContextMessageDecoratorAdapter implements IContextMessageDecoratorAdapter {
    /**
     * The form of this context decorator
     */
    protected final TitleAreaDialog myDialog;

    /**
     * The OK button of the dialog
     */
    private Button myOKButton;

    /**
     * Constructs and returns a new adapter
     * 
     * @param dialog the wizard page
     */
    public TitleAreaDialogContextMessageDecoratorAdapter(TitleAreaDialog dialog) {
        myDialog = dialog;
    }

    @Override
    public void dispose() {
        // Do nothing
    }

    @Override
    public void update(List<IBindingMessage> messages, boolean inError, int maxType) {
        if (maxType == IMessageProvider.NONE) {
            myDialog.setMessage(null, IMessageProvider.NONE);
        } else if (messages.size() == 1) {
            final String m = AbstractBindingMessage.getFullMessage(messages.get(0));
            myDialog.setMessage(m, maxType);
        } else {
            final String m = messages.size() + " messages"; // TODO NLS
            myDialog.setMessage(m, maxType);
        }
        /*
         * We assume that the button bar is a standard bar as created by Dialog.createButtonBar...
         * 
         * See Dialog.createButton(...)
         */
        if (myOKButton == null) {
            if (myDialog.buttonBar instanceof Composite) {
                final Composite buttonBarComposite = (Composite) myDialog.buttonBar;
                for (final Control c : buttonBarComposite.getChildren()) {
                    if (!(c instanceof Button)) {
                        continue;
                    }
                    final Button b = (Button) c;
                    final Object data = b.getData();
                    if (!(data instanceof Integer)) {
                        continue;
                    }
                    final Integer i = (Integer) data;
                    if (i.intValue() == IDialogConstants.OK_ID) {
                        myOKButton = b;
                        break;
                    }
                }
            }
        }
        if (myOKButton != null) {
            myOKButton.setEnabled(!inError);
        }
    }
}