core/org.eclipse.ptp.services.ui/src/org/eclipse/ptp/services/ui/widgets/AddServiceConfigurationWidget.java - ptp/org.eclipse.ptp - Git at Google

 /*******************************************************************************
  * Copyright (c) 2009 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 org.eclipse.ptp.services.ui.widgets;


 import java.util.Arrays;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Set;

 import org.eclipse.core.runtime.ListenerList;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.ISelectionProvider;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.ptp.services.core.IService;
 import org.eclipse.ptp.services.core.IServiceConfiguration;
 import org.eclipse.ptp.services.core.ServiceModelManager;
 import org.eclipse.ptp.services.ui.dialogs.ServiceProviderConfigurationDialog;
 import org.eclipse.ptp.services.ui.messages.Messages;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.ModifyEvent;
 import org.eclipse.swt.events.ModifyListener;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Text;

 /**
  * A widget that allows the user to create a new service configuration or select an
  * existing service configuration. The widget also provides an "Advanced" button to
  * perform any additional configuration that may be required.
  */
 public class AddServiceConfigurationWidget extends Composite implements ISelectionProvider {
 	private class ConfigurationSelectionEvent implements IStructuredSelection {
 		private Object selection = getServiceConfiguration();
 		public Object getFirstElement() {
 			return isEmpty() ? null : toArray()[0];
 		}
 		public boolean isEmpty() {
 			return toArray().length == 0;
 		}
 		@SuppressWarnings("unchecked")
 		public Iterator iterator() {
 			return toList().iterator();
 		}
 		public int size() {
 			return toArray().length;
 		}
 		public Object[] toArray() {
 			return (selection == null) ? new Object[0] : new Object[] {selection};
 		}
 		@SuppressWarnings("unchecked")
 		public List toList() {
 			return Arrays.asList(selection);
 		}
 	}

 	private Text fNewConfigNameText;
 	private Button fNewConfigButton;
 	private Button fExistingConfigButton;
 	private Button fAdvancedButton;

 	private ISelection fSelection = null;
 	private IServiceConfiguration fDefaultConfig = null;
 	private IServiceConfiguration fServiceConfig = null;
 	private ServiceConfigurationSelectionWidget fServiceConfigWidget;

 	private final ListenerList fSelectionListeners = new ListenerList();

 	public AddServiceConfigurationWidget(Composite parent, int style) {
 		this(parent, style, null, null, false);
 	}

 	public AddServiceConfigurationWidget(Composite parent, int style,
 			Set<IServiceConfiguration> excluded, Set<IService> services, boolean enableButtons) {
 		super(parent, style);

 		GridLayout bodyLayout = new GridLayout(1, false);
 		bodyLayout.marginHeight = 0;
 		bodyLayout.marginWidth = 0;
 		setLayout(bodyLayout);

 		fNewConfigButton = new Button(this, SWT.RADIO);
 		fNewConfigButton.setText(Messages.AddServiceConfigurationWidget_0);
 		fNewConfigButton.setLayoutData(new GridData());
 		fNewConfigButton.addSelectionListener(new SelectionAdapter() {
 			@Override public void widgetSelected(SelectionEvent e) {
 				doSelectionUpdate();
 				notifySelection(new ConfigurationSelectionEvent());
 			}
 		});
 		fNewConfigButton.setEnabled(false);

 		Composite newComp = new Composite(this, SWT.NONE);
 		newComp.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
 		GridLayout layout = new GridLayout(2, false);
 		layout.marginLeft = 10;
 		newComp.setLayout(layout);

 		final Label label = new Label(newComp, SWT.NONE);
 		label.setText(Messages.AddServiceConfigurationWidget_1);
 		label.setLayoutData(new GridData());

 		fNewConfigNameText = new Text(newComp, SWT.BORDER);
 		GridData data = new GridData(SWT.FILL, SWT.TOP, true, false);
 		fNewConfigNameText.setLayoutData(data);
 		fNewConfigNameText.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				fDefaultConfig.setName(fNewConfigNameText.getText());
 			}
 		});

 		fExistingConfigButton = new Button(this, SWT.RADIO);
 		fExistingConfigButton.setText(Messages.AddServiceConfigurationWidget_2);
 		fExistingConfigButton.setLayoutData(new GridData());
 		fExistingConfigButton.setEnabled(configurationCount(excluded) != 0);

 		Composite existingComp = new Composite(this, SWT.NONE);
 		layout = new GridLayout(1, false);
 		layout.marginLeft = 10;
 		existingComp.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 		existingComp.setLayout(layout);

 		fServiceConfigWidget = new ServiceConfigurationSelectionWidget(existingComp, SWT.NONE, excluded, services, enableButtons);
         data = new GridData(SWT.FILL, SWT.FILL, true, true);
         data.heightHint = 200;
         fServiceConfigWidget.setLayoutData(data);
         fServiceConfigWidget.addSelectionChangedListener(new ISelectionChangedListener() {
 			public void selectionChanged(SelectionChangedEvent event) {
 				fServiceConfig = fServiceConfigWidget.getSelectedConfiguration();
 				fAdvancedButton.setEnabled(!event.getSelection().isEmpty());
 				notifySelection(event.getSelection());
 			}
         });
         fServiceConfigWidget.setEnabled(false);

 		fAdvancedButton = new Button(this, SWT.PUSH);
 		data = new GridData(SWT.END, SWT.TOP, true, true);
 		fAdvancedButton.setLayoutData(data);
 		fAdvancedButton.setText(Messages.AddServiceConfigurationWidget_3);
 		fAdvancedButton.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				ServiceProviderConfigurationDialog dialog = new ServiceProviderConfigurationDialog(getShell(), getServiceConfiguration());
 				dialog.open();
 			}
 		});

 		updateButtons(true);
 	}

 	private int configurationCount(Set<IServiceConfiguration> excluded) {
 		Set<IServiceConfiguration> configs = ServiceModelManager.getInstance().getConfigurations();
 		if (excluded != null) {
 			configs.removeAll(excluded);
 		}
 		return configs.size();
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.viewers.ISelectionProvider#addSelectionChangedListener(org.eclipse.jface.viewers.ISelectionChangedListener)
 	 */
 	public void addSelectionChangedListener(ISelectionChangedListener listener) {
 		fSelectionListeners.add(listener);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.viewers.ISelectionProvider#getSelection()
 	 */
 	public ISelection getSelection() {
 		return fSelection;
 	}

 	/**
 	 * Get the currently selected service configuration
 	 *
 	 * @return service configuration
 	 */
 	public IServiceConfiguration getServiceConfiguration() {
 		return fServiceConfig;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.viewers.ISelectionProvider#removeSelectionChangedListener(org.eclipse.jface.viewers.ISelectionChangedListener)
 	 */
 	public void removeSelectionChangedListener(
 			ISelectionChangedListener listener) {
 		fSelectionListeners.remove(listener);
 	}

 	/**
 	 * Set the configuration that will be returned if the "New" radio button is selected.
 	 * The name of the configuration is displayed in the text box.
 	 *
 	 * @param config default new configuration
 	 */
 	public void setDefaultConfiguration(IServiceConfiguration config) {
 		if (config != null) {
 			fDefaultConfig = config;
 			fNewConfigNameText.setText(config.getName());
 			fNewConfigButton.setEnabled(true);
 			doSelectionUpdate();
 		}
 	}

 	/**
 	 * Set the selected status of the buttons.
 	 *
 	 * @param newButtonSelected if true, the new button will be selected
 	 */
 	public void setSelection(boolean newButtonSelected) {
 		if (fDefaultConfig != null) {
 			updateButtons(newButtonSelected);
 			doSelectionUpdate();
 			notifySelection(new ConfigurationSelectionEvent());
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.viewers.ISelectionProvider#setSelection(org.eclipse.jface.viewers.ISelection)
 	 */
 	public void setSelection(ISelection selection) {
 		fSelection = selection;
 	}

 	/**
 	 * Update widgets when a radio button is selected.
 	 */
 	private void doSelectionUpdate() {
 		fNewConfigNameText.setEnabled(fNewConfigButton.getSelection());
 		fServiceConfigWidget.setEnabled(!fNewConfigButton.getSelection());
 		if (fNewConfigButton.getSelection()) {
 			fServiceConfig = fDefaultConfig;
 			fAdvancedButton.setEnabled(true);
 		} else {
 			fServiceConfig = fServiceConfigWidget.getSelectedConfiguration();
 			fAdvancedButton.setEnabled(fServiceConfigWidget.getSelectedConfiguration() != null);
 		}
 	}

 	/**
 	 * Notify all listeners of the selection.
 	 *
 	 * @param e event that was generated by the selection
 	 */
 	private void notifySelection(ISelection selection) {
 		setSelection(selection);
 		SelectionChangedEvent event = new SelectionChangedEvent(this, getSelection());
 		for (Object listener : fSelectionListeners.getListeners()) {
 			((ISelectionChangedListener) listener).selectionChanged(event);
 		}
 	}

 	/**
 	 * Update the button selection status. If the existing config button
 	 * is disabled, then this always sets the new config button.
 	 *
 	 * @param newSelected new config button status
 	 */
 	private void updateButtons(boolean newSelected) {
 		if (fExistingConfigButton.isEnabled()) {
 			fNewConfigButton.setSelection(newSelected);
 			fExistingConfigButton.setSelection(!newSelected);
 		} else {
 			fNewConfigButton.setSelection(true);
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2009 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 org.eclipse.ptp.services.ui.widgets;


	import java.util.Arrays;
	import java.util.Iterator;
	import java.util.List;
	import java.util.Set;

	import org.eclipse.core.runtime.ListenerList;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.ISelectionProvider;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.ptp.services.core.IService;
	import org.eclipse.ptp.services.core.IServiceConfiguration;
	import org.eclipse.ptp.services.core.ServiceModelManager;
	import org.eclipse.ptp.services.ui.dialogs.ServiceProviderConfigurationDialog;
	import org.eclipse.ptp.services.ui.messages.Messages;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.ModifyEvent;
	import org.eclipse.swt.events.ModifyListener;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Text;

	/**
	* A widget that allows the user to create a new service configuration or select an
	* existing service configuration. The widget also provides an "Advanced" button to
	* perform any additional configuration that may be required.
	*/
	public class AddServiceConfigurationWidget extends Composite implements ISelectionProvider {
	private class ConfigurationSelectionEvent implements IStructuredSelection {
	private Object selection = getServiceConfiguration();
	public Object getFirstElement() {
	return isEmpty() ? null : toArray()[0];
	}
	public boolean isEmpty() {
	return toArray().length == 0;
	}
	@SuppressWarnings("unchecked")
	public Iterator iterator() {
	return toList().iterator();
	}
	public int size() {
	return toArray().length;
	}
	public Object[] toArray() {
	return (selection == null) ? new Object[0] : new Object[] {selection};
	}
	@SuppressWarnings("unchecked")
	public List toList() {
	return Arrays.asList(selection);
	}
	}

	private Text fNewConfigNameText;
	private Button fNewConfigButton;
	private Button fExistingConfigButton;
	private Button fAdvancedButton;

	private ISelection fSelection = null;
	private IServiceConfiguration fDefaultConfig = null;
	private IServiceConfiguration fServiceConfig = null;
	private ServiceConfigurationSelectionWidget fServiceConfigWidget;

	private final ListenerList fSelectionListeners = new ListenerList();

	public AddServiceConfigurationWidget(Composite parent, int style) {
	this(parent, style, null, null, false);
	}

	public AddServiceConfigurationWidget(Composite parent, int style,
	Set<IServiceConfiguration> excluded, Set<IService> services, boolean enableButtons) {
	super(parent, style);

	GridLayout bodyLayout = new GridLayout(1, false);
	bodyLayout.marginHeight = 0;
	bodyLayout.marginWidth = 0;
	setLayout(bodyLayout);

	fNewConfigButton = new Button(this, SWT.RADIO);
	fNewConfigButton.setText(Messages.AddServiceConfigurationWidget_0);
	fNewConfigButton.setLayoutData(new GridData());
	fNewConfigButton.addSelectionListener(new SelectionAdapter() {
	@Override public void widgetSelected(SelectionEvent e) {
	doSelectionUpdate();
	notifySelection(new ConfigurationSelectionEvent());
	}
	});
	fNewConfigButton.setEnabled(false);

	Composite newComp = new Composite(this, SWT.NONE);
	newComp.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
	GridLayout layout = new GridLayout(2, false);
	layout.marginLeft = 10;
	newComp.setLayout(layout);

	final Label label = new Label(newComp, SWT.NONE);
	label.setText(Messages.AddServiceConfigurationWidget_1);
	label.setLayoutData(new GridData());

	fNewConfigNameText = new Text(newComp, SWT.BORDER);
	GridData data = new GridData(SWT.FILL, SWT.TOP, true, false);
	fNewConfigNameText.setLayoutData(data);
	fNewConfigNameText.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	fDefaultConfig.setName(fNewConfigNameText.getText());
	}
	});

	fExistingConfigButton = new Button(this, SWT.RADIO);
	fExistingConfigButton.setText(Messages.AddServiceConfigurationWidget_2);
	fExistingConfigButton.setLayoutData(new GridData());
	fExistingConfigButton.setEnabled(configurationCount(excluded) != 0);

	Composite existingComp = new Composite(this, SWT.NONE);
	layout = new GridLayout(1, false);
	layout.marginLeft = 10;
	existingComp.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
	existingComp.setLayout(layout);

	fServiceConfigWidget = new ServiceConfigurationSelectionWidget(existingComp, SWT.NONE, excluded, services, enableButtons);
	data = new GridData(SWT.FILL, SWT.FILL, true, true);
	data.heightHint = 200;
	fServiceConfigWidget.setLayoutData(data);
	fServiceConfigWidget.addSelectionChangedListener(new ISelectionChangedListener() {
	public void selectionChanged(SelectionChangedEvent event) {
	fServiceConfig = fServiceConfigWidget.getSelectedConfiguration();
	fAdvancedButton.setEnabled(!event.getSelection().isEmpty());
	notifySelection(event.getSelection());
	}
	});
	fServiceConfigWidget.setEnabled(false);

	fAdvancedButton = new Button(this, SWT.PUSH);
	data = new GridData(SWT.END, SWT.TOP, true, true);
	fAdvancedButton.setLayoutData(data);
	fAdvancedButton.setText(Messages.AddServiceConfigurationWidget_3);
	fAdvancedButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	ServiceProviderConfigurationDialog dialog = new ServiceProviderConfigurationDialog(getShell(), getServiceConfiguration());
	dialog.open();
	}
	});

	updateButtons(true);
	}

	private int configurationCount(Set<IServiceConfiguration> excluded) {
	Set<IServiceConfiguration> configs = ServiceModelManager.getInstance().getConfigurations();
	if (excluded != null) {
	configs.removeAll(excluded);
	}
	return configs.size();
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.viewers.ISelectionProvider#addSelectionChangedListener(org.eclipse.jface.viewers.ISelectionChangedListener)
	*/
	public void addSelectionChangedListener(ISelectionChangedListener listener) {
	fSelectionListeners.add(listener);
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.viewers.ISelectionProvider#getSelection()
	*/
	public ISelection getSelection() {
	return fSelection;
	}

	/**
	* Get the currently selected service configuration
	*
	* @return service configuration
	*/
	public IServiceConfiguration getServiceConfiguration() {
	return fServiceConfig;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.viewers.ISelectionProvider#removeSelectionChangedListener(org.eclipse.jface.viewers.ISelectionChangedListener)
	*/
	public void removeSelectionChangedListener(
	ISelectionChangedListener listener) {
	fSelectionListeners.remove(listener);
	}

	/**
	* Set the configuration that will be returned if the "New" radio button is selected.
	* The name of the configuration is displayed in the text box.
	*
	* @param config default new configuration
	*/
	public void setDefaultConfiguration(IServiceConfiguration config) {
	if (config != null) {
	fDefaultConfig = config;
	fNewConfigNameText.setText(config.getName());
	fNewConfigButton.setEnabled(true);
	doSelectionUpdate();
	}
	}

	/**
	* Set the selected status of the buttons.
	*
	* @param newButtonSelected if true, the new button will be selected
	*/
	public void setSelection(boolean newButtonSelected) {
	if (fDefaultConfig != null) {
	updateButtons(newButtonSelected);
	doSelectionUpdate();
	notifySelection(new ConfigurationSelectionEvent());
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.viewers.ISelectionProvider#setSelection(org.eclipse.jface.viewers.ISelection)
	*/
	public void setSelection(ISelection selection) {
	fSelection = selection;
	}

	/**
	* Update widgets when a radio button is selected.
	*/
	private void doSelectionUpdate() {
	fNewConfigNameText.setEnabled(fNewConfigButton.getSelection());
	fServiceConfigWidget.setEnabled(!fNewConfigButton.getSelection());
	if (fNewConfigButton.getSelection()) {
	fServiceConfig = fDefaultConfig;
	fAdvancedButton.setEnabled(true);
	} else {
	fServiceConfig = fServiceConfigWidget.getSelectedConfiguration();
	fAdvancedButton.setEnabled(fServiceConfigWidget.getSelectedConfiguration() != null);
	}
	}

	/**
	* Notify all listeners of the selection.
	*
	* @param e event that was generated by the selection
	*/
	private void notifySelection(ISelection selection) {
	setSelection(selection);
	SelectionChangedEvent event = new SelectionChangedEvent(this, getSelection());
	for (Object listener : fSelectionListeners.getListeners()) {
	((ISelectionChangedListener) listener).selectionChanged(event);
	}
	}

	/**
	* Update the button selection status. If the existing config button
	* is disabled, then this always sets the new config button.
	*
	* @param newSelected new config button status
	*/
	private void updateButtons(boolean newSelected) {
	if (fExistingConfigButton.isEnabled()) {
	fNewConfigButton.setSelection(newSelected);
	fExistingConfigButton.setSelection(!newSelected);
	} else {
	fNewConfigButton.setSelection(true);
	}
	}
	}