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/*******************************************************************************
* Copyright (c) 2004, 2010 Helen Bershadskaya 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:
* Helen Bershadskaya - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.provisional.commons.ui.dialogs;
import java.util.HashMap;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.wizard.IWizard;
import org.eclipse.jface.wizard.IWizardPage;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.mylyn.internal.provisional.commons.ui.CommonImages;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Shell;
/**
* Wizard dialog for displaying repository settings page. Necessary so we can add a validate button in the button bar.
*
* @author Helen Bershadskaya
*/
public class ValidatableWizardDialog extends EnhancedWizardDialog {
private static final String VALIDATE_BUTTON_KEY = "validate"; //$NON-NLS-1$
private Button validateServerButton;
private static final int VALIDATE_BUTTON_ID = 2000;
/**
* @see WizardDialog#WizardDialog(Shell, IWizard)
*/
public ValidatableWizardDialog(Shell parentShell, IWizard newWizard) {
super(parentShell, newWizard);
setHelpAvailable(false);
}
@Override
protected void createExtraButtons(Composite composite) {
validateServerButton = createButton(composite, VALIDATE_BUTTON_ID,
Messages.ValidatableWizardDialog_Validate_Button_Label, false);
validateServerButton.setImage(CommonImages.getImage(CommonImages.VALIDATE));
validateServerButton.setVisible(false);
setButtonLayoutData(validateServerButton);
}
@Override
public void updateExtraButtons() {
IValidatable validatable = getValidatablePage();
if (validatable != null && validatable.needsValidation()) {
if (!validateServerButton.isVisible()) {
validateServerButton.setVisible(true);
}
validateServerButton.setEnabled(validatable.canValidate());
} else {
if (validateServerButton != null && validateServerButton.isVisible()) {
validateServerButton.setVisible(false);
}
}
}
private IValidatable getValidatablePage() {
IValidatable validatable = null;
IWizardPage currentPage = getCurrentPage();
if (currentPage instanceof IValidatable) {
validatable = (IValidatable) currentPage;
} else if (currentPage instanceof IAdaptable) {
validatable = (IValidatable) ((IAdaptable) currentPage).getAdapter(IValidatable.class);
}
return validatable;
}
@Override
protected boolean handleExtraButtonPressed(int buttonId) {
if (buttonId == VALIDATE_BUTTON_ID) {
IValidatable validatable = getValidatablePage();
if (validatable != null) {
validatable.validate();
return true;
}
}
return false;
}
/**
* Modeled after WizardDialog.saveAndSetEnabledState(), but that one is private, so create our own
*/
@Override
protected HashMap<String, Boolean> saveAndSetEnabledStateMylyn() {
HashMap<String, Boolean> savedEnabledState = null;
if (getShell() != null) {
savedEnabledState = new HashMap<String, Boolean>();
if (validateServerButton != null && validateServerButton.getShell() == getShell()) {
savedEnabledState.put(VALIDATE_BUTTON_KEY, validateServerButton.getEnabled());
validateServerButton.setEnabled(false);
}
}
return savedEnabledState;
}
/**
* Modeled after WizardDialog.restoreEnabledState() and WizardDialog.restoreUIState() -- couldn't override those
* since they are private, so create our own. Currently only single button to work with, so don't create two
* separate methods
*/
@Override
protected void restoreEnabledStateMylyn(HashMap<String, Boolean> savedEnabledState) {
if (savedEnabledState != null) {
Boolean savedValidateEnabledState = savedEnabledState.get(VALIDATE_BUTTON_KEY);
if (validateServerButton != null && savedValidateEnabledState != null) {
validateServerButton.setEnabled(savedValidateEnabledState);
}
}
}
}
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