com.siteview.mde.internal.ui.refactoring.GeneralRenameIDWizardPage.java Source code

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Here is the source code for com.siteview.mde.internal.ui.refactoring.GeneralRenameIDWizardPage.java

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/*******************************************************************************
 *  Copyright (c) 2007, 2008 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package com.siteview.mde.internal.ui.refactoring;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.ltk.core.refactoring.RefactoringStatus;
import org.eclipse.ltk.ui.refactoring.UserInputWizardPage;
import com.siteview.mde.internal.ui.MDEUIMessages;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.*;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.*;

public abstract class GeneralRenameIDWizardPage extends UserInputWizardPage {

    protected RefactoringInfo fInfo;
    private Text fNewId;
    private Button fUpdateReferences;

    public GeneralRenameIDWizardPage(String title, RefactoringInfo info) {
        super(title);
        fInfo = info;
    }

    public void createControl(Composite parent) {
        Composite composite = new Composite(parent, SWT.NONE);
        composite.setLayout(new GridLayout(2, false));
        Dialog.applyDialogFont(composite);

        createMainControl(composite);

        setPageComplete(false);
        setControl(composite);
    }

    protected void createMainControl(Composite parent) {
        createNewID(parent);
        createUpdateReferences(parent);
    }

    protected void createNewID(Composite composite) {
        Label label = new Label(composite, SWT.NONE);
        label.setText(MDEUIMessages.RenamePluginWizardPage_newId);

        fNewId = new Text(composite, SWT.BORDER);
        fNewId.setText(fInfo.getCurrentValue());
        fNewId.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        fNewId.addModifyListener(new ModifyListener() {
            public void modifyText(ModifyEvent e) {
                fInfo.setNewValue(fNewId.getText());
                validatePage();
            }
        });
    }

    protected void createUpdateReferences(Composite composite) {
        fUpdateReferences = new Button(composite, SWT.CHECK);
        fUpdateReferences.setText(MDEUIMessages.RenamePluginWizardPage_updateReferences);
        fUpdateReferences.setLayoutData(new GridData(GridData.BEGINNING, GridData.CENTER, true, false, 2, 1));
        fUpdateReferences.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                fInfo.setUpdateReferences(fUpdateReferences.getSelection());
            }
        });
        fUpdateReferences.setSelection(true);
    }

    protected void validatePage() {
        String text = fNewId.getText();
        String errorMessage = null;
        if (text.length() == 0)
            errorMessage = MDEUIMessages.RenamePluginWizardPage_idNotSet;
        else
            errorMessage = validateId(text);
        if (errorMessage == null && text.equals(fInfo.getCurrentValue()))
            setPageComplete(false);
        else
            setPageComplete(errorMessage == null ? new RefactoringStatus()
                    : RefactoringStatus.createFatalErrorStatus(errorMessage));
    }

    /**
     * Intended to allow subclassing wizard pages validate the id based on custom criteria.
     * 
     * @param id
     * @return null if id is valid, otherwise return corresponding error message
     */
    protected abstract String validateId(String id);

}