/*******************************************************************************
* Copyright (c) 2004, 2011 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.tasks.ui.wizards;
import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.wizard.IWizard;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.mylyn.commons.ui.CommonImages;
import org.eclipse.mylyn.commons.ui.dialogs.EnhancedWizardDialog;
import org.eclipse.mylyn.internal.tasks.ui.wizards.Messages;
import org.eclipse.mylyn.tasks.ui.TasksUiImages;
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
* @since 3.1
*/
public class TaskRepositoryWizardDialog 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)
* @since 3.1
*/
public TaskRepositoryWizardDialog(Shell parentShell, IWizard newWizard) {
super(parentShell, newWizard);
setHelpAvailable(false);
}
/**
* Overridden so we can add a validate button to the wizard button bar, if a repository settings page requires it.
* Validate button is added left justified at button bar bottom (next to help image).
*
* @since 3.7
*/
@Override
protected void createExtraButtons(Composite composite) {
validateServerButton = createButton(composite, VALIDATE_BUTTON_ID,
Messages.AbstractRepositorySettingsPage_Validate_Settings, false);
validateServerButton.setImage(CommonImages.getImage(TasksUiImages.REPOSITORY_VALIDATE));
validateServerButton.setVisible(false);
setButtonLayoutData(validateServerButton);
}
/**
* @since 3.7
*/
@Override
public void updateExtraButtons() {
if (getCurrentPage() instanceof AbstractRepositorySettingsPage
&& ((AbstractRepositorySettingsPage) getCurrentPage()).needsValidation()) {
if (!validateServerButton.isVisible()) {
validateServerButton.setVisible(true);
}
validateServerButton.setEnabled(((AbstractRepositorySettingsPage) getCurrentPage()).canValidate());
} else {
if (validateServerButton != null && validateServerButton.isVisible()) {
validateServerButton.setVisible(false);
}
}
}
/**
* Overridden so we can react to the validate button being pressed. This could have been done with a straight
* selection listener in the creation method above, but this is more consistent with how the other buttons work in
* the wizard dialog.
*
* @since 3.7
*/
@Override
protected boolean handleExtraButtonPressed(int buttonId) {
if (buttonId == VALIDATE_BUTTON_ID) {
if (getCurrentPage() instanceof AbstractRepositorySettingsPage) {
((AbstractRepositorySettingsPage) getCurrentPage()).validateSettings();
return true;
}
}
return false;
}
/**
* Overridden to be able to set proper state for our validate button
*/
@Override
public void run(boolean fork, boolean cancelable, IRunnableWithProgress runnable) throws InvocationTargetException,
InterruptedException {
HashMap<String, Boolean> savedEnabledState = null;
try {
savedEnabledState = saveAndSetEnabledStateMylyn();
super.run(fork, cancelable, runnable);
} finally {
if (savedEnabledState != null) {
restoreEnabledStateMylyn(savedEnabledState);
}
}
}
/**
* Modeled after super.saveAndSetEnabledState(), but that one is private, so create our own
*
* @since 3.7
*/
@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 super.restoreEnabledState() and super.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
*
* @since 3.7
*/
@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);
}
}
}
}