plugins/org.eclipse.epf.library.ui/src/org/eclipse/epf/library/ui/actions/ConfigurationContribution.java - gerrit/epf/org.eclipse.epf.archive - Git at Google

 //------------------------------------------------------------------------------
 // Copyright (c) 2005, 2006 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 implementation
 //------------------------------------------------------------------------------
 package org.eclipse.epf.library.ui.actions;

 import java.util.Collection;
 import java.util.Collections;
 import java.util.Iterator;

 import org.eclipse.epf.library.LibraryPlugin;
 import org.eclipse.epf.library.events.ILibraryChangeListener;
 import org.eclipse.epf.library.prefs.LibraryPreferenceConstants;
 import org.eclipse.epf.library.services.LibraryProcessor;
 import org.eclipse.epf.library.services.SafeUpdateController;
 import org.eclipse.epf.library.ui.LibraryUIResources;
 import org.eclipse.jface.action.ControlContribution;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.FocusEvent;
 import org.eclipse.swt.events.FocusListener;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.widgets.Combo;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;

 import com.ibm.uma.MethodConfiguration;

 /**
  * Adds the Configuration comboxbox to the system toolbar.
  *
  * @author Bingxue Xu
  * @author Kelvin Low
  * @since 1.0
  */
 public class ConfigurationContribution extends ControlContribution implements
 		SelectionListener, FocusListener {

 	public static final String CONTRIBUTION_ID = ConfigurationContribution.class
 			.getName();

 	private static final String SELECT_CONFIGURATION = LibraryUIResources
 			.getString("LibraryUI.selectConfigLabel.text"); //$NON-NLS-1$

 	private static Combo configCombo;

 	private ILibraryChangeListener libListener;

 	private static boolean needUpdate = false;

 	private static boolean needCleanList = false;

 	private static boolean needSpecialUpdare = false;

 	private static String currentSelectconfig;

 	/**
 	 * Creates a new instance.
 	 */
 	public ConfigurationContribution() {
 		super(CONTRIBUTION_ID);
 	}

 	/**
 	 * @see org.eclipse.jface.action.ControlContribution#createControl(Composite)
 	 */
 	protected Control createControl(Composite parent) {
 		configCombo = new Combo(parent, SWT.DROP_DOWN | SWT.READ_ONLY);
 		configCombo.setVisibleItemCount(10);
 		configCombo.addSelectionListener(this);
 		configCombo.addFocusListener(this);

 		// Listen to the Library changes and automatically update the
 		// configuration list in
 		// the combo box.
 		libListener = new ILibraryChangeListener() {
 			public void libraryChanged(int option, Collection changedItems) {
 				if (option == ILibraryChangeListener.OPTION_CONFIGURATION_SELECTED) {
 					String currentConfig = LibraryProcessor.getInstance()
 							.getCurrentConfiguration();
 					selectConfiguration(currentConfig);
 				} else {
 					if (option == ILibraryChangeListener.OPTION_CREATED
 							|| option == ILibraryChangeListener.OPTION_LOADED) {
 						needCleanList = true;
 						needUpdate = true;
 						updateComboListSpecial();
 					} else if (option == ILibraryChangeListener.OPTION_CHANGED
 							|| option == ILibraryChangeListener.OPTION_DELETED) {
 						if (changedItems != null) {
 							for (Iterator it = changedItems.iterator(); it
 									.hasNext();) {
 								Object element = it.next();
 								if (element instanceof MethodConfiguration) {
 									needUpdate = true;
 									if ((option == ILibraryChangeListener.OPTION_DELETED)
 											&& ((MethodConfiguration) element)
 													.getName()
 													.equals(currentSelectconfig)) {
 										needSpecialUpdare = true;
 									}
 									break;
 								}
 							}
 						}
 					}

 					if (needSpecialUpdare) {
 						updateComboListSpecial();
 						needSpecialUpdare = false;
 					}
 				}
 			}
 		};

 		LibraryProcessor.getInstance().addListener(libListener);

 		LibraryProcessor lp = LibraryProcessor.getInstance();
 		String[] configNames = lp.getConfigurationNames();

 		// Check if the config remembered from last session is one of them.
 		int lastSessionConfigIdx = chooseSelectedIdex(configNames);
 		if (configNames != null && configNames.length > 0) {
 			if (lastSessionConfigIdx < 0)
 				configCombo.add(SELECT_CONFIGURATION);
 			for (int i = 0; i < configNames.length; i++) {
 				String configName = configNames[i];
 				if (configName != null) {
 					configCombo.add(configName);
 				}
 			}
 		} else {
 			configCombo.add(SELECT_CONFIGURATION);
 		}

 		if (lastSessionConfigIdx < 0)
 			configCombo.select(0);
 		else {
 			configCombo.select(lastSessionConfigIdx);
 			currentSelectconfig = getSavedLastConfig();
 			performSelectionChanged();
 		}

 		configCombo.setEnabled(true);

 		return configCombo;
 	}

 	/**
 	 * Called when the Configurations in the Library has changed.
 	 */
 	public void focusGained(FocusEvent e) {
 		if (needUpdate) {
 			updateComboList();
 			needUpdate = false;
 		}
 	}

 	public void focusLost(FocusEvent e) {
 	}

 	public void widgetSelected(SelectionEvent e) {
 		int selectedIndex = configCombo.getSelectionIndex();
 		if (selectedIndex > 0) {
 			if (configCombo.getItem(0).equals(SELECT_CONFIGURATION)) {
 				configCombo.remove(0);
 				configCombo.select(selectedIndex - 1);
 			}
 		}

 		int currentIndex = configCombo.getSelectionIndex();
 		currentSelectconfig = configCombo.getItem(currentIndex);

 		performSelectionChanged();
 	}

 	public void widgetDefaultSelected(SelectionEvent e) {
 	}

 	public static void refresh() {
 //		libListener.libraryChanged(ILibraryChangeListener.OPTION_LOADED, Collections.EMPTY_LIST);
 		updateComboList();
 	}

 	/**
 	 * Updates the Configuration combobox content.
 	 */
 	private static void updateComboList() {
 		SafeUpdateController.asyncExec(new Runnable() {
 			public void run() {
 				try {
 					if (configCombo == null || configCombo.isDisposed()) {
 						return;
 					}
 					if (needCleanList) {
 						configCombo.removeAll();
 						needCleanList = false;
 					}

 					int index = configCombo.getSelectionIndex();
 					String currentSelection = ""; //$NON-NLS-1$
 					if (index >= 0) {
 						currentSelection = configCombo.getItem(index);
 					}

 					index = -1;
 					configCombo.setEnabled(true);
 					LibraryProcessor lp = LibraryProcessor.getInstance();
 					String[] configNames = lp.getConfigurationNames();
 					configCombo.removeAll();

 					if (configNames != null && configNames.length > 0) {
 						for (int i = 0; i < configNames.length; i++) {
 							String configName = configNames[i];
 							if (configName != null) {
 								configCombo.add(configName);
 								if (configName.equals(currentSelection)) {
 									index = i;
 								}
 							}
 						}
 					} else {
 						index = 0;
 						configCombo.add(SELECT_CONFIGURATION);
 						configCombo.select(0);
 					}

 					if (index >= 0) {
 						configCombo.select(index);
 					}

 					if (index == -1) {
 						configCombo.add(SELECT_CONFIGURATION, 0);
 						configCombo.select(0);
 					}

 					int currentIdx = configCombo.getSelectionIndex();
 					currentSelectconfig = configCombo.getItem(currentIdx);

 					configCombo.setVisibleItemCount(10);
 					performSelectionChanged();
 				} catch (Exception e) {
 					e.printStackTrace();
 				}
 			}
 		});
 	}

 	private static void updateComboListSpecial() {
 		SafeUpdateController.asyncExec(new Runnable() {
 			public void run() {
 				if (needCleanList) {
 					configCombo.removeAll();
 					currentSelectconfig = null;
 				}

 				try {
 					if (currentSelectconfig != null) {
 						configCombo.remove(currentSelectconfig);
 					}
 					configCombo.add(SELECT_CONFIGURATION, 0);
 					configCombo.select(0);
 				} catch (Exception e) {
 					e.printStackTrace();
 				}
 			}
 		});
 	}

 	/**
 	 * Selects the given Configuration.
 	 *
 	 * @param cfgName
 	 *            The name of the Configuration.
 	 */
 	private void selectConfiguration(String cfgName) {
 		if (cfgName.equals(currentSelectconfig)) {
 			return;
 		}

 		// TODO: This may need to be in an aync UI thread
 		// Get the current dropdown config name.
 		int currentIdx = configCombo.getSelectionIndex();
 		String currentName = ""; //$NON-NLS-1$
 		if (currentIdx >= 0) {
 			currentName = configCombo.getItem(currentIdx);
 		}

 		if (!currentName.equals(cfgName)) {
 			// Find the index of the new cfgname in the combo box.
 			int selectIndex = -1;
 			for (int i = 0; i < configCombo.getItemCount(); i++) {
 				if (configCombo.getItem(i).equals(cfgName)) {
 					selectIndex = i;
 					break;
 				}
 			}

 			if (selectIndex > 0
 					&& (configCombo.getItem(0).equals(SELECT_CONFIGURATION))) {
 				configCombo.remove(0);
 				selectIndex--;
 			}

 			if (selectIndex != -1) {
 				configCombo.select(selectIndex);
 			}

 			currentIdx = configCombo.getSelectionIndex();
 			currentSelectconfig = configCombo.getItem(currentIdx);

 			performSelectionChanged();
 		}
 	}

 	private static void performSelectionChanged() {
 		LibraryProcessor lp = LibraryProcessor.getInstance();
 		lp.setCurrentConfiguration(currentSelectconfig);
 		saveSelectedConfigIntoPersistence();
 	}

 	private static int chooseSelectedIdex(String[] configNames) {
 		int index = -1;
 		String lastSessionConfig = getSavedLastConfig();
 		if (lastSessionConfig != null) {
 			for (int i = 0; i < configNames.length; i++) {
 				if (lastSessionConfig.equals(configNames[i])) {
 					index = i;
 					break;
 				}
 			}
 		}
 		return index;
 	}

 	private static void saveSelectedConfigIntoPersistence() {
 		IPreferenceStore store = LibraryPlugin.getDefault()
 				.getPreferenceStore();
 		store
 				.setValue(
 						LibraryPreferenceConstants.PREF_SELECTED_CONFIG_IN_LAST_SESSION,
 						currentSelectconfig);
 		LibraryPlugin.getDefault().savePluginPreferences();
 	}

 	private static String getSavedLastConfig() {
 		IPreferenceStore store = LibraryPlugin.getDefault()
 				.getPreferenceStore();
 		return store
 				.getString(LibraryPreferenceConstants.PREF_SELECTED_CONFIG_IN_LAST_SESSION);
 	}

 }
	//------------------------------------------------------------------------------
	// Copyright (c) 2005, 2006 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 implementation
	//------------------------------------------------------------------------------
	package org.eclipse.epf.library.ui.actions;

	import java.util.Collection;
	import java.util.Collections;
	import java.util.Iterator;

	import org.eclipse.epf.library.LibraryPlugin;
	import org.eclipse.epf.library.events.ILibraryChangeListener;
	import org.eclipse.epf.library.prefs.LibraryPreferenceConstants;
	import org.eclipse.epf.library.services.LibraryProcessor;
	import org.eclipse.epf.library.services.SafeUpdateController;
	import org.eclipse.epf.library.ui.LibraryUIResources;
	import org.eclipse.jface.action.ControlContribution;
	import org.eclipse.jface.preference.IPreferenceStore;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.FocusEvent;
	import org.eclipse.swt.events.FocusListener;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.events.SelectionListener;
	import org.eclipse.swt.widgets.Combo;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;

	import com.ibm.uma.MethodConfiguration;

	/**
	* Adds the Configuration comboxbox to the system toolbar.
	*
	* @author Bingxue Xu
	* @author Kelvin Low
	* @since 1.0
	*/
	public class ConfigurationContribution extends ControlContribution implements
	SelectionListener, FocusListener {

	public static final String CONTRIBUTION_ID = ConfigurationContribution.class
	.getName();

	private static final String SELECT_CONFIGURATION = LibraryUIResources
	.getString("LibraryUI.selectConfigLabel.text"); //$NON-NLS-1$

	private static Combo configCombo;

	private ILibraryChangeListener libListener;

	private static boolean needUpdate = false;

	private static boolean needCleanList = false;

	private static boolean needSpecialUpdare = false;

	private static String currentSelectconfig;

	/**
	* Creates a new instance.
	*/
	public ConfigurationContribution() {
	super(CONTRIBUTION_ID);
	}

	/**
	* @see org.eclipse.jface.action.ControlContribution#createControl(Composite)
	*/
	protected Control createControl(Composite parent) {
	configCombo = new Combo(parent, SWT.DROP_DOWN \| SWT.READ_ONLY);
	configCombo.setVisibleItemCount(10);
	configCombo.addSelectionListener(this);
	configCombo.addFocusListener(this);

	// Listen to the Library changes and automatically update the
	// configuration list in
	// the combo box.
	libListener = new ILibraryChangeListener() {
	public void libraryChanged(int option, Collection changedItems) {
	if (option == ILibraryChangeListener.OPTION_CONFIGURATION_SELECTED) {
	String currentConfig = LibraryProcessor.getInstance()
	.getCurrentConfiguration();
	selectConfiguration(currentConfig);
	} else {
	if (option == ILibraryChangeListener.OPTION_CREATED
	\|\| option == ILibraryChangeListener.OPTION_LOADED) {
	needCleanList = true;
	needUpdate = true;
	updateComboListSpecial();
	} else if (option == ILibraryChangeListener.OPTION_CHANGED
	\|\| option == ILibraryChangeListener.OPTION_DELETED) {
	if (changedItems != null) {
	for (Iterator it = changedItems.iterator(); it
	.hasNext();) {
	Object element = it.next();
	if (element instanceof MethodConfiguration) {
	needUpdate = true;
	if ((option == ILibraryChangeListener.OPTION_DELETED)
	&& ((MethodConfiguration) element)
	.getName()
	.equals(currentSelectconfig)) {
	needSpecialUpdare = true;
	}
	break;
	}
	}
	}
	}

	if (needSpecialUpdare) {
	updateComboListSpecial();
	needSpecialUpdare = false;
	}
	}
	}
	};

	LibraryProcessor.getInstance().addListener(libListener);

	LibraryProcessor lp = LibraryProcessor.getInstance();
	String[] configNames = lp.getConfigurationNames();

	// Check if the config remembered from last session is one of them.
	int lastSessionConfigIdx = chooseSelectedIdex(configNames);
	if (configNames != null && configNames.length > 0) {
	if (lastSessionConfigIdx < 0)
	configCombo.add(SELECT_CONFIGURATION);
	for (int i = 0; i < configNames.length; i++) {
	String configName = configNames[i];
	if (configName != null) {
	configCombo.add(configName);
	}
	}
	} else {
	configCombo.add(SELECT_CONFIGURATION);
	}

	if (lastSessionConfigIdx < 0)
	configCombo.select(0);
	else {
	configCombo.select(lastSessionConfigIdx);
	currentSelectconfig = getSavedLastConfig();
	performSelectionChanged();
	}

	configCombo.setEnabled(true);

	return configCombo;
	}

	/**
	* Called when the Configurations in the Library has changed.
	*/
	public void focusGained(FocusEvent e) {
	if (needUpdate) {
	updateComboList();
	needUpdate = false;
	}
	}

	public void focusLost(FocusEvent e) {
	}

	public void widgetSelected(SelectionEvent e) {
	int selectedIndex = configCombo.getSelectionIndex();
	if (selectedIndex > 0) {
	if (configCombo.getItem(0).equals(SELECT_CONFIGURATION)) {
	configCombo.remove(0);
	configCombo.select(selectedIndex - 1);
	}
	}

	int currentIndex = configCombo.getSelectionIndex();
	currentSelectconfig = configCombo.getItem(currentIndex);

	performSelectionChanged();
	}

	public void widgetDefaultSelected(SelectionEvent e) {
	}

	public static void refresh() {
	// libListener.libraryChanged(ILibraryChangeListener.OPTION_LOADED, Collections.EMPTY_LIST);
	updateComboList();
	}

	/**
	* Updates the Configuration combobox content.
	*/
	private static void updateComboList() {
	SafeUpdateController.asyncExec(new Runnable() {
	public void run() {
	try {
	if (configCombo == null \|\| configCombo.isDisposed()) {
	return;
	}
	if (needCleanList) {
	configCombo.removeAll();
	needCleanList = false;
	}

	int index = configCombo.getSelectionIndex();
	String currentSelection = ""; //$NON-NLS-1$
	if (index >= 0) {
	currentSelection = configCombo.getItem(index);
	}

	index = -1;
	configCombo.setEnabled(true);
	LibraryProcessor lp = LibraryProcessor.getInstance();
	String[] configNames = lp.getConfigurationNames();
	configCombo.removeAll();

	if (configNames != null && configNames.length > 0) {
	for (int i = 0; i < configNames.length; i++) {
	String configName = configNames[i];
	if (configName != null) {
	configCombo.add(configName);
	if (configName.equals(currentSelection)) {
	index = i;
	}
	}
	}
	} else {
	index = 0;
	configCombo.add(SELECT_CONFIGURATION);
	configCombo.select(0);
	}

	if (index >= 0) {
	configCombo.select(index);
	}

	if (index == -1) {
	configCombo.add(SELECT_CONFIGURATION, 0);
	configCombo.select(0);
	}

	int currentIdx = configCombo.getSelectionIndex();
	currentSelectconfig = configCombo.getItem(currentIdx);

	configCombo.setVisibleItemCount(10);
	performSelectionChanged();
	} catch (Exception e) {
	e.printStackTrace();
	}
	}
	});
	}

	private static void updateComboListSpecial() {
	SafeUpdateController.asyncExec(new Runnable() {
	public void run() {
	if (needCleanList) {
	configCombo.removeAll();
	currentSelectconfig = null;
	}

	try {
	if (currentSelectconfig != null) {
	configCombo.remove(currentSelectconfig);
	}
	configCombo.add(SELECT_CONFIGURATION, 0);
	configCombo.select(0);
	} catch (Exception e) {
	e.printStackTrace();
	}
	}
	});
	}

	/**
	* Selects the given Configuration.
	*
	* @param cfgName
	* The name of the Configuration.
	*/
	private void selectConfiguration(String cfgName) {
	if (cfgName.equals(currentSelectconfig)) {
	return;
	}

	// TODO: This may need to be in an aync UI thread
	// Get the current dropdown config name.
	int currentIdx = configCombo.getSelectionIndex();
	String currentName = ""; //$NON-NLS-1$
	if (currentIdx >= 0) {
	currentName = configCombo.getItem(currentIdx);
	}

	if (!currentName.equals(cfgName)) {
	// Find the index of the new cfgname in the combo box.
	int selectIndex = -1;
	for (int i = 0; i < configCombo.getItemCount(); i++) {
	if (configCombo.getItem(i).equals(cfgName)) {
	selectIndex = i;
	break;
	}
	}

	if (selectIndex > 0
	&& (configCombo.getItem(0).equals(SELECT_CONFIGURATION))) {
	configCombo.remove(0);
	selectIndex--;
	}

	if (selectIndex != -1) {
	configCombo.select(selectIndex);
	}

	currentIdx = configCombo.getSelectionIndex();
	currentSelectconfig = configCombo.getItem(currentIdx);

	performSelectionChanged();
	}
	}

	private static void performSelectionChanged() {
	LibraryProcessor lp = LibraryProcessor.getInstance();
	lp.setCurrentConfiguration(currentSelectconfig);
	saveSelectedConfigIntoPersistence();
	}

	private static int chooseSelectedIdex(String[] configNames) {
	int index = -1;
	String lastSessionConfig = getSavedLastConfig();
	if (lastSessionConfig != null) {
	for (int i = 0; i < configNames.length; i++) {
	if (lastSessionConfig.equals(configNames[i])) {
	index = i;
	break;
	}
	}
	}
	return index;
	}

	private static void saveSelectedConfigIntoPersistence() {
	IPreferenceStore store = LibraryPlugin.getDefault()
	.getPreferenceStore();
	store
	.setValue(
	LibraryPreferenceConstants.PREF_SELECTED_CONFIG_IN_LAST_SESSION,
	currentSelectconfig);
	LibraryPlugin.getDefault().savePluginPreferences();
	}

	private static String getSavedLastConfig() {
	IPreferenceStore store = LibraryPlugin.getDefault()
	.getPreferenceStore();
	return store
	.getString(LibraryPreferenceConstants.PREF_SELECTED_CONFIG_IN_LAST_SESSION);
	}

	}