jsf/plugins/org.eclipse.jst.jsf.ui/src/org/eclipse/jst/jsf/ui/internal/project/facet/JSFFacetInstallPage.java - jsf/webtools.jsf - Git at Google

 /*******************************************************************************
  * Copyright (c) 2005 Oracle Corporation.
  * 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:
  *    Gerry Kessler - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jst.jsf.ui.internal.project.facet;

 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Iterator;

 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.emf.common.util.EList;
 import org.eclipse.jface.dialogs.DialogSettings;
 import org.eclipse.jface.dialogs.IDialogSettings;
 import org.eclipse.jface.dialogs.IInputValidator;
 import org.eclipse.jface.dialogs.InputDialog;
 import org.eclipse.jface.viewers.ComboViewer;
 import org.eclipse.jface.viewers.ILabelProvider;
 import org.eclipse.jface.viewers.ILabelProviderListener;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredContentProvider;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.window.Window;
 import org.eclipse.jface.wizard.WizardDialog;
 import org.eclipse.jst.j2ee.project.facet.IJ2EEModuleFacetInstallDataModelProperties;
 import org.eclipse.jst.jsf.core.internal.JSFCorePlugin;
 import org.eclipse.jst.jsf.core.internal.jsflibraryregistry.JSFLibrary;
 import org.eclipse.jst.jsf.core.internal.jsflibraryregistry.JSFLibraryRegistry;
 import org.eclipse.jst.jsf.core.internal.project.facet.IJSFFacetInstallDataModelProperties;
 import org.eclipse.jst.jsf.ui.internal.JSFUiPlugin;
 import org.eclipse.jst.jsf.ui.internal.Messages;
 import org.eclipse.jst.jsf.ui.internal.classpath.JSFLibraryWizard;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Image;
 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.List;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.IWorkbench;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.wst.common.frameworks.datamodel.AbstractDataModelProvider;
 import org.eclipse.wst.common.frameworks.datamodel.DataModelEvent;
 import org.eclipse.wst.common.frameworks.datamodel.DataModelFactory;
 import org.eclipse.wst.common.frameworks.datamodel.IDataModel;
 import org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelWizardPage;
 import org.eclipse.wst.common.project.facet.core.IFacetedProject;
 import org.eclipse.wst.common.project.facet.core.IProjectFacetVersion;
 import org.eclipse.wst.common.project.facet.ui.IFacetWizardPage;
 import org.eclipse.wst.common.project.facet.ui.IWizardContext;

 /**
  * JSF Facet installation wizard page.
  *
  * @author Gerry Kessler - Oracle
  */
 public class JSFFacetInstallPage extends DataModelWizardPage implements IJSFFacetInstallDataModelProperties, IFacetWizardPage {
 	// UI
 	private Label lblJSFImpl;
 	private ComboViewer cboJSFImplViewer;
 	private Button chkDeployImpl;
 	private Button btnAddJSFImpl;
 	private Label lblJSFConfig;
 	private Text txtJSFConfig;
 	private Label lblJSFServletName;
 	private Text txtJSFServletName;
 	private Label lblJSFServletURLPatterns;
 	private List lstJSFServletURLPatterns;
 	private Button btnAddPattern;
 	private Button btnRemovePattern;

 	private IDialogSettings dialogSettings;
 	private IDataModel webAppDataModel;
 	private static final String SETTINGS_ROOT = JSFUiPlugin.PLUGIN_ID
 			+ ".jsfFacetInstall"; //$NON-NLS-1$
 	private static final String SETTINGS_CONFIG = "configPath"; //$NON-NLS-1$
 	private static final String SETTINGS_SERVLET = "servletName"; //$NON-NLS-1$
 	private static final String SETTINGS_URL_MAPPINGS = "urlMappings"; //$NON-NLS-1$
 	private static final String SETTINGS_URL_PATTERN = "pattern"; //$NON-NLS-1$
 	private static final String SETTINGS_DEPLOY_IMPL = "deployImplementation"; //$NON-NLS-1$

 	/**
 	 * Zero argument constructor
 	 */
 	public JSFFacetInstallPage() {
 		//FIXME: following WebFacetInstallPage pattern which will be fixed at somepoint
     	super(DataModelFactory.createDataModel(new AbstractDataModelProvider(){}), "jsf.facet.install.page"); //$NON-NLS-1$
 		setTitle(Messages.JSFFacetInstallPage_title);
 		setDescription(Messages.JSFFacetInstallPage_description);
 		dialogSettings = JSFUiPlugin.getDefault().getDialogSettings();

 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelWizardPage#createTopLevelComposite(org.eclipse.swt.widgets.Composite)
 	 */
 	protected Composite createTopLevelComposite (final Composite parent) {
 		initializeDialogUnits(parent);
 		final Composite composite = new Composite(parent, SWT.NONE);
 		composite.setLayout(new GridLayout(3, false));

 		lblJSFImpl = new Label(composite, SWT.None);
 		lblJSFImpl.setText(Messages.JSFFacetInstallPage_JSFImplLabel);
 		lblJSFImpl.setLayoutData(new GridData(GridData.BEGINNING));

 		cboJSFImplViewer = new ComboViewer(composite, SWT.BORDER | SWT.READ_ONLY);
 		cboJSFImplViewer.getCombo().setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		cboJSFImplViewer.setContentProvider(new IStructuredContentProvider(){
 			private java.util.List jsfImpls = new ArrayList(Collections.EMPTY_LIST);

 			public void dispose() {
 			}

 			public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 				if (newInput == null)
 					jsfImpls = Collections.EMPTY_LIST;
 				else {
 					jsfImpls.clear();
 					jsfImpls.addAll((EList)newInput);
 				}
 			}
 			public Object[] getElements(Object inputElement) {
 				return jsfImpls.toArray();
 			}
 		});
 		cboJSFImplViewer.setLabelProvider(new ILabelProvider(){
 			private JSFLibrary defaultImpl = null;

 			public String getText(Object element) {
 				if (element instanceof JSFLibrary){
 					StringBuffer nameBuf = new StringBuffer(((JSFLibrary)element).getName());
 					if (((JSFLibrary)element) == getDefaultImpl())
 						nameBuf.append(" ").append(JSFLibraryRegistry.DEFAULT_IMPL_LABEL); //$NON-NLS-1$
 					return nameBuf.toString() ;
 				}
 				return null;
 			}

 			private JSFLibrary getDefaultImpl() {
 				if (defaultImpl == null){
 					defaultImpl = JSFCorePlugin.getDefault().getJSFLibraryRegistry().getDefaultImplementation();
 				}
 				return defaultImpl;
 			}

 			public Image getImage(Object element) {return null;}
 			public void addListener(ILabelProviderListener listener) {}
 			public void dispose() {}
 			public boolean isLabelProperty(Object element, String property) {return false;}
 			public void removeListener(ILabelProviderListener listener) {}
 		});

 		btnAddJSFImpl = new Button(composite, SWT.COMMAND);
 		btnAddJSFImpl.setText(Messages.JSFFacetInstallPage_Add1);
 		btnAddJSFImpl.setLayoutData(new GridData(GridData.END));
 		btnAddJSFImpl.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				JSFLibraryWizard wizard = new JSFLibraryWizard(true);
 				IWorkbench wb = PlatformUI.getWorkbench();
 				wizard.init(wb, null);
 				WizardDialog dialog = new WizardDialog(wb
 						.getActiveWorkbenchWindow().getShell(), wizard);
 				int ret = dialog.open();
 				if (ret == Window.OK) {
 					loadJSFImplList();
 					//select the new item
 					cboJSFImplViewer.setSelection(new StructuredSelection(wizard.getJSFLibrary()), true);
 //					addItemToList(wizard.getJSFLibrary().getName(), true);
 					validatePage();
 				}
 			}
 		});

 		Label lblSpacer = new Label(composite, SWT.NONE);
 		lblSpacer.setLayoutData(new GridData(GridData.BEGINNING));

 		chkDeployImpl = new Button(composite, SWT.CHECK);
 		chkDeployImpl.setText(Messages.JSFFacetInstallPage_DeployJarsLabel);
 		GridData gdd = new GridData(GridData.FILL_HORIZONTAL);
 		gdd.horizontalSpan = 2;
 		chkDeployImpl.setLayoutData(gdd);

 		lblJSFConfig = new Label(composite, SWT.NONE);
 		lblJSFConfig.setText(Messages.JSFFacetInstallPage_JSFConfigLabel);
 		lblJSFConfig.setLayoutData(new GridData(GridData.BEGINNING));

 		txtJSFConfig = new Text(composite, SWT.BORDER);
 		// txtJSFConfig.setText(config.getDefaultJSFConfigPath());
 		GridData gd1 = new GridData(GridData.FILL_HORIZONTAL);
 		gd1.horizontalSpan = 2;
 		txtJSFConfig.setLayoutData(gd1);

 		lblJSFServletName = new Label(composite, SWT.NONE);
 		lblJSFServletName.setText(Messages.JSFFacetInstallPage_JSFServletNameLabel);
 		lblJSFServletName.setLayoutData(new GridData(GridData.BEGINNING));

 		txtJSFServletName = new Text(composite, SWT.BORDER);
 		// txtJSFServletName.setText(config.getDefaultJSFServletName());
 		GridData gd2 = new GridData(GridData.FILL_HORIZONTAL);
 		gd2.horizontalSpan = 2;
 		txtJSFServletName.setLayoutData(gd2);

 		lblJSFServletURLPatterns = new Label(composite, SWT.NULL);
 		lblJSFServletURLPatterns.setText(Messages.JSFFacetInstallPage_JSFURLMappingLabel);
 		lblJSFServletURLPatterns.setLayoutData(new GridData(GridData.BEGINNING
 				| GridData.VERTICAL_ALIGN_BEGINNING));
 		lstJSFServletURLPatterns = new List(composite, SWT.BORDER);
 		GridData gd3 = new GridData(GridData.FILL_HORIZONTAL);
 		gd3.heightHint = convertHeightInCharsToPixels(10);
 		lstJSFServletURLPatterns.setLayoutData(gd3);
 		lstJSFServletURLPatterns.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				btnRemovePattern.setEnabled(lstJSFServletURLPatterns
 						.getSelectionCount() > 0);
 			}
 		});

 		Composite btnComposite = new Composite(composite, SWT.NONE);
 		GridLayout gl = new GridLayout(1, false);
 		// gl.marginBottom = 0;
 		// gl.marginTop = 0;
 		// gl.marginRight = 0;
 		gl.marginLeft = 0;
 		btnComposite.setLayout(gl);
 		btnComposite.setLayoutData(new GridData(GridData.END
 				| GridData.VERTICAL_ALIGN_FILL));

 		btnAddPattern = new Button(btnComposite, SWT.NONE);
 		btnAddPattern.setText(Messages.JSFFacetInstallPage_Add2);
 		btnAddPattern.setLayoutData(new GridData(GridData.FILL_HORIZONTAL
 				| GridData.VERTICAL_ALIGN_BEGINNING));
 		btnAddPattern.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				InputDialog dialog = new InputDialog(
 						getShell(),
 						Messages.JSFFacetInstallPage_PatternDialogTitle,
 						Messages.JSFFacetInstallPage_PatternDialogDesc,
 						null, new IInputValidator() {

 							public String isValid(String newText) {
 								return isValidPattern(newText);
 							}

 						});
 				dialog.open();
 				if (dialog.getReturnCode() == Window.OK) {
 					addItemToList(dialog.getValue(), true);
 				}
 			}
 		});

 		btnRemovePattern = new Button(btnComposite, SWT.NONE);
 		btnRemovePattern.setText(Messages.JSFFacetInstallPage_Remove);
 		btnRemovePattern.setLayoutData(new GridData(GridData.FILL_HORIZONTAL
 				| GridData.VERTICAL_ALIGN_BEGINNING));
 		btnRemovePattern.setEnabled(false);
 		btnRemovePattern.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				removeItemFromList(lstJSFServletURLPatterns.getSelection());
 				btnRemovePattern.setEnabled(false);
 			}
 		});

 		loadJSFImplList();
 		addModificationListeners();

 		return composite;
 	}

 	private void initializeValues() {
 		IDialogSettings root = dialogSettings.getSection(SETTINGS_ROOT);

 		JSFLibrary impl = (JSFLibrary)model.getDefaultProperty(IJSFFacetInstallDataModelProperties.IMPLEMENTATION);
 		if (impl != null){
 			cboJSFImplViewer.setSelection(new StructuredSelection(impl), true);
 		} else {
 			cboJSFImplViewer.setSelection(StructuredSelection.EMPTY);
 		}

 		boolean deploy = ((Boolean)model.getDefaultProperty(IJSFFacetInstallDataModelProperties.DEPLOY_IMPLEMENTATION)).booleanValue();
 		String deployStr = null;
 		if (root != null)
 			deployStr = root.get(SETTINGS_DEPLOY_IMPL);
 		if (deployStr != null && !deployStr.equals("")) { //$NON-NLS-1$
 			deploy = Boolean.valueOf(deployStr).booleanValue();
 		}
 		chkDeployImpl.setSelection(deploy);

 		String conf = null;
 		if (root != null)
 			conf = root.get(SETTINGS_CONFIG);
 		if (conf == null || conf.equals("")) { //$NON-NLS-1$
 			conf = (String)model.getDefaultProperty(IJSFFacetInstallDataModelProperties.CONFIG_PATH);
 		}
 		txtJSFConfig.setText(conf);

 		String servletName = null;
 		if (root != null)
 			servletName = root.get(SETTINGS_SERVLET);
 		if (servletName == null || servletName.equals("")) { //$NON-NLS-1$
 			servletName = (String)model.getDefaultProperty(IJSFFacetInstallDataModelProperties.SERVLET_NAME);
 		}
 		txtJSFServletName.setText(servletName);

 		loadURLMappingPatterns(root);
 	}

 	private void saveSettings() {
 		DialogSettings root = new DialogSettings(SETTINGS_ROOT);
 		dialogSettings.addSection(root);

 		root.put(SETTINGS_DEPLOY_IMPL, String.valueOf(getDeployJSFImpl()));
 		root.put(SETTINGS_CONFIG, getJSFConfig());
 		root.put(SETTINGS_SERVLET, getJSFServletName());
 		DialogSettings mappings = new DialogSettings(SETTINGS_URL_MAPPINGS);
 		root.addSection(mappings);
 		mappings.put(SETTINGS_URL_PATTERN, getJSFPatterns());
 	}

 	private boolean getDeployJSFImpl() {
 		return chkDeployImpl.getSelection();
 	}

 	private String getJSFConfig() {
 		return txtJSFConfig.getText().trim();
 	}

 	private String getJSFServletName() {
 		return txtJSFServletName.getText().trim();
 	}

 	private String[] getJSFPatterns() {
 		return lstJSFServletURLPatterns.getItems();
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.wst.common.project.facet.ui.IFacetWizardPage#setConfig(java.lang.Object)
 	 */
 	public void setConfig(Object config) {
     	model.removeListener(this);
     	synchHelper.dispose();

         model = (IDataModel) config;
         model.addListener(this);
 		synchHelper = initializeSynchHelper(model);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.wst.common.project.facet.ui.IFacetWizardPage#transferStateToConfig()
 	 */
 	public void transferStateToConfig() {
 		saveSettings(); //convenient place for this.  don't want to save if user cancelled.
 		//do nothing else now.  being handled by synchHelper
 //		config.setProperty(IJSFFacetInstallDataModelProperties.IMPLEMENTATION, getJSFImpl());
 //		config.setStringProperty(IJSFFacetInstallDataModelProperties.CONFIG_PATH, getJSFConfig());
 //		config.setStringProperty(IJSFFacetInstallDataModelProperties.SERVLET_NAME, getJSFServletName());
 //		config.setProperty(IJSFFacetInstallDataModelProperties.SERVLET_URL_PATTERNS, getJSFPatterns());
 	}

 	private void addModificationListeners() {
 //		119330 - enhancement request for ComboViewer support.  Manually update model for now
 		addJSFImplComboListeners();
 //		synchHelper.synchComboViewer(cboJSFImplViewer, IMPLEMENTATION, null);
 		synchHelper.synchText(txtJSFConfig, CONFIG_PATH, null);
 		synchHelper.synchText(txtJSFServletName, SERVLET_NAME, null);
 		synchHelper.synchCheckbox(chkDeployImpl, DEPLOY_IMPLEMENTATION, null);
 //		Until 119321 is fixed, need to comment out below and handle model updates 'manually'.
 //		This is being done on Add and Remove, currently
 //		synchHelper.synchList(lstJSFServletURLPatterns, SERVLET_URL_PATTERNS, null);
 	}

 	private void addJSFImplComboListeners() {
 		cboJSFImplViewer.addSelectionChangedListener(new ISelectionChangedListener(){
 			public void selectionChanged(SelectionChangedEvent event) {
 				if (cboJSFImplViewer.getSelection() != null  && cboJSFImplViewer.getSelection() instanceof StructuredSelection){
 					StructuredSelection sel = (StructuredSelection)cboJSFImplViewer.getSelection();
 					if (sel.getFirstElement() != null){
 						JSFLibrary lib = (JSFLibrary)sel.getFirstElement();
 						model.setProperty(IJSFFacetInstallDataModelProperties.IMPLEMENTATION, lib);
 						return;
 					}
 				}
 				model.setProperty(IJSFFacetInstallDataModelProperties.IMPLEMENTATION, null );
 			}
 		});
 	}

 	private String isValidPattern(String value) {
 		if (value == null || value.trim().equals(""))  //$NON-NLS-1$
 			return Messages.JSFFacetInstallPage_PatternEmptyMsg;
 		if (lstJSFServletURLPatterns.indexOf(value) >= 0)
 			return Messages.JSFFacetInstallPage_PatternSpecifiedMsg;

 		return null;
 	}

 	private void loadURLMappingPatterns(IDialogSettings root) {
 		lstJSFServletURLPatterns.removeAll();
 		IDialogSettings mappings = null;
 		if (root != null)
 			mappings = root.getSection(SETTINGS_URL_MAPPINGS);
 		String[] patterns = null;
 		if (mappings != null)
 			patterns = mappings.getArray(SETTINGS_URL_PATTERN);

 		if (patterns == null || patterns.length == 0) {
 			patterns = (String[])model.getDefaultProperty(IJSFFacetInstallDataModelProperties.SERVLET_URL_PATTERNS);
 		}
 		for (int i = 0; i < patterns.length; i++) {
 			addItemToList(patterns[i], false);
 		}
 	}

 	private void addItemToList(String pattern, boolean selectMe) {
 		lstJSFServletURLPatterns.add(pattern == null ? "" : pattern); //$NON-NLS-1$
 		if (pattern == null && selectMe)
 			lstJSFServletURLPatterns.setSelection(lstJSFServletURLPatterns
 					.getItemCount() - 1);
 //		When 119321 is fixed - remove code below
 		updateModelForURLPattern();
 	}

 	private void removeItemFromList(String[] selection) {
 		for (int i = 0; i < selection.length; i++) {
 			String sel = selection[i];
 			lstJSFServletURLPatterns.remove(sel);
 		}
 //		When 119321 is fixed - remove code below
 		updateModelForURLPattern();
 	}

 	private void updateModelForURLPattern() {
 		model.setProperty(IJSFFacetInstallDataModelProperties.SERVLET_URL_PATTERNS, lstJSFServletURLPatterns.getItems());
 	}

 	private void loadJSFImplList() {
 		cboJSFImplViewer.setInput(JSFCorePlugin.getDefault().getJSFLibraryRegistry()
 			.getImplJSFLibraries());
 	}

 	protected String[] getValidationPropertyNames() {
 		return new String[]{IMPLEMENTATION, DEPLOY_IMPLEMENTATION, CONFIG_PATH, SERVLET_NAME};
 	}

 	public void setWizardContext(IWizardContext context) {
 		//hook into web datamodel if new project wizard.
 		Iterator it = context.getSelectedProjectFacets().iterator();
 		IProjectFacetVersion webFacetVersion = null;
 		while (it.hasNext()){
 			//find Web facet
 			IProjectFacetVersion pfv = (IProjectFacetVersion)it.next();
 			if (pfv.getProjectFacet().getId().equals("jst.web")){ //$NON-NLS-1$
 				webFacetVersion = pfv;
 				break;
 			}
 		}
 		if (webFacetVersion != null){
 			try {
 				webAppDataModel = (IDataModel)context.getConfig(webFacetVersion, IFacetedProject.Action.Type.INSTALL,
 						context.getProjectName());
 				if (webAppDataModel != null){
 					webAppDataModel.addListener(this);
 				}
 			} catch (CoreException e) {
 				JSFUiPlugin.log(
 						IStatus.ERROR,
 						Messages.JSFFacetInstallPage_ErrorNoWebAppDataModel,
 						e);
 			}
 		}
 	}

 	public void propertyChanged(DataModelEvent event) {
 		if (webAppDataModel != null){
 			String propertyName = event.getPropertyName();
 			if (propertyName.equals(IJ2EEModuleFacetInstallDataModelProperties.CONFIG_FOLDER)){
 				model.setStringProperty(WEBCONTENT_DIR, event.getProperty().toString());
 			}
 		}
 		super.propertyChanged(event);
 	}

 	public void dispose() {
 		if (webAppDataModel != null)
 			webAppDataModel.removeListener(this);
 		super.dispose();
 	}
 	protected void restoreDefaultSettings() {
 		initializeValues();
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2005 Oracle Corporation.
	* 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:
	* Gerry Kessler - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jst.jsf.ui.internal.project.facet;

	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.Iterator;

	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.emf.common.util.EList;
	import org.eclipse.jface.dialogs.DialogSettings;
	import org.eclipse.jface.dialogs.IDialogSettings;
	import org.eclipse.jface.dialogs.IInputValidator;
	import org.eclipse.jface.dialogs.InputDialog;
	import org.eclipse.jface.viewers.ComboViewer;
	import org.eclipse.jface.viewers.ILabelProvider;
	import org.eclipse.jface.viewers.ILabelProviderListener;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.IStructuredContentProvider;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.jface.window.Window;
	import org.eclipse.jface.wizard.WizardDialog;
	import org.eclipse.jst.j2ee.project.facet.IJ2EEModuleFacetInstallDataModelProperties;
	import org.eclipse.jst.jsf.core.internal.JSFCorePlugin;
	import org.eclipse.jst.jsf.core.internal.jsflibraryregistry.JSFLibrary;
	import org.eclipse.jst.jsf.core.internal.jsflibraryregistry.JSFLibraryRegistry;
	import org.eclipse.jst.jsf.core.internal.project.facet.IJSFFacetInstallDataModelProperties;
	import org.eclipse.jst.jsf.ui.internal.JSFUiPlugin;
	import org.eclipse.jst.jsf.ui.internal.Messages;
	import org.eclipse.jst.jsf.ui.internal.classpath.JSFLibraryWizard;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.graphics.Image;
	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.List;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.IWorkbench;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.wst.common.frameworks.datamodel.AbstractDataModelProvider;
	import org.eclipse.wst.common.frameworks.datamodel.DataModelEvent;
	import org.eclipse.wst.common.frameworks.datamodel.DataModelFactory;
	import org.eclipse.wst.common.frameworks.datamodel.IDataModel;
	import org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelWizardPage;
	import org.eclipse.wst.common.project.facet.core.IFacetedProject;
	import org.eclipse.wst.common.project.facet.core.IProjectFacetVersion;
	import org.eclipse.wst.common.project.facet.ui.IFacetWizardPage;
	import org.eclipse.wst.common.project.facet.ui.IWizardContext;

	/**
	* JSF Facet installation wizard page.
	*
	* @author Gerry Kessler - Oracle
	*/
	public class JSFFacetInstallPage extends DataModelWizardPage implements IJSFFacetInstallDataModelProperties, IFacetWizardPage {
	// UI
	private Label lblJSFImpl;
	private ComboViewer cboJSFImplViewer;
	private Button chkDeployImpl;
	private Button btnAddJSFImpl;
	private Label lblJSFConfig;
	private Text txtJSFConfig;
	private Label lblJSFServletName;
	private Text txtJSFServletName;
	private Label lblJSFServletURLPatterns;
	private List lstJSFServletURLPatterns;
	private Button btnAddPattern;
	private Button btnRemovePattern;

	private IDialogSettings dialogSettings;
	private IDataModel webAppDataModel;
	private static final String SETTINGS_ROOT = JSFUiPlugin.PLUGIN_ID
	+ ".jsfFacetInstall"; //$NON-NLS-1$
	private static final String SETTINGS_CONFIG = "configPath"; //$NON-NLS-1$
	private static final String SETTINGS_SERVLET = "servletName"; //$NON-NLS-1$
	private static final String SETTINGS_URL_MAPPINGS = "urlMappings"; //$NON-NLS-1$
	private static final String SETTINGS_URL_PATTERN = "pattern"; //$NON-NLS-1$
	private static final String SETTINGS_DEPLOY_IMPL = "deployImplementation"; //$NON-NLS-1$

	/**
	* Zero argument constructor
	*/
	public JSFFacetInstallPage() {
	//FIXME: following WebFacetInstallPage pattern which will be fixed at somepoint
	super(DataModelFactory.createDataModel(new AbstractDataModelProvider(){}), "jsf.facet.install.page"); //$NON-NLS-1$
	setTitle(Messages.JSFFacetInstallPage_title);
	setDescription(Messages.JSFFacetInstallPage_description);
	dialogSettings = JSFUiPlugin.getDefault().getDialogSettings();

	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelWizardPage#createTopLevelComposite(org.eclipse.swt.widgets.Composite)
	*/
	protected Composite createTopLevelComposite (final Composite parent) {
	initializeDialogUnits(parent);
	final Composite composite = new Composite(parent, SWT.NONE);
	composite.setLayout(new GridLayout(3, false));

	lblJSFImpl = new Label(composite, SWT.None);
	lblJSFImpl.setText(Messages.JSFFacetInstallPage_JSFImplLabel);
	lblJSFImpl.setLayoutData(new GridData(GridData.BEGINNING));

	cboJSFImplViewer = new ComboViewer(composite, SWT.BORDER \| SWT.READ_ONLY);
	cboJSFImplViewer.getCombo().setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	cboJSFImplViewer.setContentProvider(new IStructuredContentProvider(){
	private java.util.List jsfImpls = new ArrayList(Collections.EMPTY_LIST);

	public void dispose() {
	}

	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
	if (newInput == null)
	jsfImpls = Collections.EMPTY_LIST;
	else {
	jsfImpls.clear();
	jsfImpls.addAll((EList)newInput);
	}
	}
	public Object[] getElements(Object inputElement) {
	return jsfImpls.toArray();
	}
	});
	cboJSFImplViewer.setLabelProvider(new ILabelProvider(){
	private JSFLibrary defaultImpl = null;

	public String getText(Object element) {
	if (element instanceof JSFLibrary){
	StringBuffer nameBuf = new StringBuffer(((JSFLibrary)element).getName());
	if (((JSFLibrary)element) == getDefaultImpl())
	nameBuf.append(" ").append(JSFLibraryRegistry.DEFAULT_IMPL_LABEL); //$NON-NLS-1$
	return nameBuf.toString() ;
	}
	return null;
	}

	private JSFLibrary getDefaultImpl() {
	if (defaultImpl == null){
	defaultImpl = JSFCorePlugin.getDefault().getJSFLibraryRegistry().getDefaultImplementation();
	}
	return defaultImpl;
	}

	public Image getImage(Object element) {return null;}
	public void addListener(ILabelProviderListener listener) {}
	public void dispose() {}
	public boolean isLabelProperty(Object element, String property) {return false;}
	public void removeListener(ILabelProviderListener listener) {}
	});

	btnAddJSFImpl = new Button(composite, SWT.COMMAND);
	btnAddJSFImpl.setText(Messages.JSFFacetInstallPage_Add1);
	btnAddJSFImpl.setLayoutData(new GridData(GridData.END));
	btnAddJSFImpl.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	JSFLibraryWizard wizard = new JSFLibraryWizard(true);
	IWorkbench wb = PlatformUI.getWorkbench();
	wizard.init(wb, null);
	WizardDialog dialog = new WizardDialog(wb
	.getActiveWorkbenchWindow().getShell(), wizard);
	int ret = dialog.open();
	if (ret == Window.OK) {
	loadJSFImplList();
	//select the new item
	cboJSFImplViewer.setSelection(new StructuredSelection(wizard.getJSFLibrary()), true);
	// addItemToList(wizard.getJSFLibrary().getName(), true);
	validatePage();
	}
	}
	});

	Label lblSpacer = new Label(composite, SWT.NONE);
	lblSpacer.setLayoutData(new GridData(GridData.BEGINNING));

	chkDeployImpl = new Button(composite, SWT.CHECK);
	chkDeployImpl.setText(Messages.JSFFacetInstallPage_DeployJarsLabel);
	GridData gdd = new GridData(GridData.FILL_HORIZONTAL);
	gdd.horizontalSpan = 2;
	chkDeployImpl.setLayoutData(gdd);

	lblJSFConfig = new Label(composite, SWT.NONE);
	lblJSFConfig.setText(Messages.JSFFacetInstallPage_JSFConfigLabel);
	lblJSFConfig.setLayoutData(new GridData(GridData.BEGINNING));

	txtJSFConfig = new Text(composite, SWT.BORDER);
	// txtJSFConfig.setText(config.getDefaultJSFConfigPath());
	GridData gd1 = new GridData(GridData.FILL_HORIZONTAL);
	gd1.horizontalSpan = 2;
	txtJSFConfig.setLayoutData(gd1);

	lblJSFServletName = new Label(composite, SWT.NONE);
	lblJSFServletName.setText(Messages.JSFFacetInstallPage_JSFServletNameLabel);
	lblJSFServletName.setLayoutData(new GridData(GridData.BEGINNING));

	txtJSFServletName = new Text(composite, SWT.BORDER);
	// txtJSFServletName.setText(config.getDefaultJSFServletName());
	GridData gd2 = new GridData(GridData.FILL_HORIZONTAL);
	gd2.horizontalSpan = 2;
	txtJSFServletName.setLayoutData(gd2);

	lblJSFServletURLPatterns = new Label(composite, SWT.NULL);
	lblJSFServletURLPatterns.setText(Messages.JSFFacetInstallPage_JSFURLMappingLabel);
	lblJSFServletURLPatterns.setLayoutData(new GridData(GridData.BEGINNING
	\| GridData.VERTICAL_ALIGN_BEGINNING));
	lstJSFServletURLPatterns = new List(composite, SWT.BORDER);
	GridData gd3 = new GridData(GridData.FILL_HORIZONTAL);
	gd3.heightHint = convertHeightInCharsToPixels(10);
	lstJSFServletURLPatterns.setLayoutData(gd3);
	lstJSFServletURLPatterns.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	btnRemovePattern.setEnabled(lstJSFServletURLPatterns
	.getSelectionCount() > 0);
	}
	});

	Composite btnComposite = new Composite(composite, SWT.NONE);
	GridLayout gl = new GridLayout(1, false);
	// gl.marginBottom = 0;
	// gl.marginTop = 0;
	// gl.marginRight = 0;
	gl.marginLeft = 0;
	btnComposite.setLayout(gl);
	btnComposite.setLayoutData(new GridData(GridData.END
	\| GridData.VERTICAL_ALIGN_FILL));

	btnAddPattern = new Button(btnComposite, SWT.NONE);
	btnAddPattern.setText(Messages.JSFFacetInstallPage_Add2);
	btnAddPattern.setLayoutData(new GridData(GridData.FILL_HORIZONTAL
	\| GridData.VERTICAL_ALIGN_BEGINNING));
	btnAddPattern.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	InputDialog dialog = new InputDialog(
	getShell(),
	Messages.JSFFacetInstallPage_PatternDialogTitle,
	Messages.JSFFacetInstallPage_PatternDialogDesc,
	null, new IInputValidator() {

	public String isValid(String newText) {
	return isValidPattern(newText);
	}

	});
	dialog.open();
	if (dialog.getReturnCode() == Window.OK) {
	addItemToList(dialog.getValue(), true);
	}
	}
	});

	btnRemovePattern = new Button(btnComposite, SWT.NONE);
	btnRemovePattern.setText(Messages.JSFFacetInstallPage_Remove);
	btnRemovePattern.setLayoutData(new GridData(GridData.FILL_HORIZONTAL
	\| GridData.VERTICAL_ALIGN_BEGINNING));
	btnRemovePattern.setEnabled(false);
	btnRemovePattern.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	removeItemFromList(lstJSFServletURLPatterns.getSelection());
	btnRemovePattern.setEnabled(false);
	}
	});

	loadJSFImplList();
	addModificationListeners();

	return composite;
	}

	private void initializeValues() {
	IDialogSettings root = dialogSettings.getSection(SETTINGS_ROOT);

	JSFLibrary impl = (JSFLibrary)model.getDefaultProperty(IJSFFacetInstallDataModelProperties.IMPLEMENTATION);
	if (impl != null){
	cboJSFImplViewer.setSelection(new StructuredSelection(impl), true);
	} else {
	cboJSFImplViewer.setSelection(StructuredSelection.EMPTY);
	}

	boolean deploy = ((Boolean)model.getDefaultProperty(IJSFFacetInstallDataModelProperties.DEPLOY_IMPLEMENTATION)).booleanValue();
	String deployStr = null;
	if (root != null)
	deployStr = root.get(SETTINGS_DEPLOY_IMPL);
	if (deployStr != null && !deployStr.equals("")) { //$NON-NLS-1$
	deploy = Boolean.valueOf(deployStr).booleanValue();
	}
	chkDeployImpl.setSelection(deploy);

	String conf = null;
	if (root != null)
	conf = root.get(SETTINGS_CONFIG);
	if (conf == null \|\| conf.equals("")) { //$NON-NLS-1$
	conf = (String)model.getDefaultProperty(IJSFFacetInstallDataModelProperties.CONFIG_PATH);
	}
	txtJSFConfig.setText(conf);

	String servletName = null;
	if (root != null)
	servletName = root.get(SETTINGS_SERVLET);
	if (servletName == null \|\| servletName.equals("")) { //$NON-NLS-1$
	servletName = (String)model.getDefaultProperty(IJSFFacetInstallDataModelProperties.SERVLET_NAME);
	}
	txtJSFServletName.setText(servletName);

	loadURLMappingPatterns(root);
	}

	private void saveSettings() {
	DialogSettings root = new DialogSettings(SETTINGS_ROOT);
	dialogSettings.addSection(root);

	root.put(SETTINGS_DEPLOY_IMPL, String.valueOf(getDeployJSFImpl()));
	root.put(SETTINGS_CONFIG, getJSFConfig());
	root.put(SETTINGS_SERVLET, getJSFServletName());
	DialogSettings mappings = new DialogSettings(SETTINGS_URL_MAPPINGS);
	root.addSection(mappings);
	mappings.put(SETTINGS_URL_PATTERN, getJSFPatterns());
	}

	private boolean getDeployJSFImpl() {
	return chkDeployImpl.getSelection();
	}

	private String getJSFConfig() {
	return txtJSFConfig.getText().trim();
	}

	private String getJSFServletName() {
	return txtJSFServletName.getText().trim();
	}

	private String[] getJSFPatterns() {
	return lstJSFServletURLPatterns.getItems();
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.wst.common.project.facet.ui.IFacetWizardPage#setConfig(java.lang.Object)
	*/
	public void setConfig(Object config) {
	model.removeListener(this);
	synchHelper.dispose();

	model = (IDataModel) config;
	model.addListener(this);
	synchHelper = initializeSynchHelper(model);
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.wst.common.project.facet.ui.IFacetWizardPage#transferStateToConfig()
	*/
	public void transferStateToConfig() {
	saveSettings(); //convenient place for this. don't want to save if user cancelled.
	//do nothing else now. being handled by synchHelper
	// config.setProperty(IJSFFacetInstallDataModelProperties.IMPLEMENTATION, getJSFImpl());
	// config.setStringProperty(IJSFFacetInstallDataModelProperties.CONFIG_PATH, getJSFConfig());
	// config.setStringProperty(IJSFFacetInstallDataModelProperties.SERVLET_NAME, getJSFServletName());
	// config.setProperty(IJSFFacetInstallDataModelProperties.SERVLET_URL_PATTERNS, getJSFPatterns());
	}

	private void addModificationListeners() {
	// 119330 - enhancement request for ComboViewer support. Manually update model for now
	addJSFImplComboListeners();
	// synchHelper.synchComboViewer(cboJSFImplViewer, IMPLEMENTATION, null);
	synchHelper.synchText(txtJSFConfig, CONFIG_PATH, null);
	synchHelper.synchText(txtJSFServletName, SERVLET_NAME, null);
	synchHelper.synchCheckbox(chkDeployImpl, DEPLOY_IMPLEMENTATION, null);
	// Until 119321 is fixed, need to comment out below and handle model updates 'manually'.
	// This is being done on Add and Remove, currently
	// synchHelper.synchList(lstJSFServletURLPatterns, SERVLET_URL_PATTERNS, null);
	}

	private void addJSFImplComboListeners() {
	cboJSFImplViewer.addSelectionChangedListener(new ISelectionChangedListener(){
	public void selectionChanged(SelectionChangedEvent event) {
	if (cboJSFImplViewer.getSelection() != null && cboJSFImplViewer.getSelection() instanceof StructuredSelection){
	StructuredSelection sel = (StructuredSelection)cboJSFImplViewer.getSelection();
	if (sel.getFirstElement() != null){
	JSFLibrary lib = (JSFLibrary)sel.getFirstElement();
	model.setProperty(IJSFFacetInstallDataModelProperties.IMPLEMENTATION, lib);
	return;
	}
	}
	model.setProperty(IJSFFacetInstallDataModelProperties.IMPLEMENTATION, null );
	}
	});
	}

	private String isValidPattern(String value) {
	if (value == null \|\| value.trim().equals("")) //$NON-NLS-1$
	return Messages.JSFFacetInstallPage_PatternEmptyMsg;
	if (lstJSFServletURLPatterns.indexOf(value) >= 0)
	return Messages.JSFFacetInstallPage_PatternSpecifiedMsg;

	return null;
	}

	private void loadURLMappingPatterns(IDialogSettings root) {
	lstJSFServletURLPatterns.removeAll();
	IDialogSettings mappings = null;
	if (root != null)
	mappings = root.getSection(SETTINGS_URL_MAPPINGS);
	String[] patterns = null;
	if (mappings != null)
	patterns = mappings.getArray(SETTINGS_URL_PATTERN);

	if (patterns == null \|\| patterns.length == 0) {
	patterns = (String[])model.getDefaultProperty(IJSFFacetInstallDataModelProperties.SERVLET_URL_PATTERNS);
	}
	for (int i = 0; i < patterns.length; i++) {
	addItemToList(patterns[i], false);
	}
	}

	private void addItemToList(String pattern, boolean selectMe) {
	lstJSFServletURLPatterns.add(pattern == null ? "" : pattern); //$NON-NLS-1$
	if (pattern == null && selectMe)
	lstJSFServletURLPatterns.setSelection(lstJSFServletURLPatterns
	.getItemCount() - 1);
	// When 119321 is fixed - remove code below
	updateModelForURLPattern();
	}

	private void removeItemFromList(String[] selection) {
	for (int i = 0; i < selection.length; i++) {
	String sel = selection[i];
	lstJSFServletURLPatterns.remove(sel);
	}
	// When 119321 is fixed - remove code below
	updateModelForURLPattern();
	}

	private void updateModelForURLPattern() {
	model.setProperty(IJSFFacetInstallDataModelProperties.SERVLET_URL_PATTERNS, lstJSFServletURLPatterns.getItems());
	}

	private void loadJSFImplList() {
	cboJSFImplViewer.setInput(JSFCorePlugin.getDefault().getJSFLibraryRegistry()
	.getImplJSFLibraries());
	}

	protected String[] getValidationPropertyNames() {
	return new String[]{IMPLEMENTATION, DEPLOY_IMPLEMENTATION, CONFIG_PATH, SERVLET_NAME};
	}

	public void setWizardContext(IWizardContext context) {
	//hook into web datamodel if new project wizard.
	Iterator it = context.getSelectedProjectFacets().iterator();
	IProjectFacetVersion webFacetVersion = null;
	while (it.hasNext()){
	//find Web facet
	IProjectFacetVersion pfv = (IProjectFacetVersion)it.next();
	if (pfv.getProjectFacet().getId().equals("jst.web")){ //$NON-NLS-1$
	webFacetVersion = pfv;
	break;
	}
	}
	if (webFacetVersion != null){
	try {
	webAppDataModel = (IDataModel)context.getConfig(webFacetVersion, IFacetedProject.Action.Type.INSTALL,
	context.getProjectName());
	if (webAppDataModel != null){
	webAppDataModel.addListener(this);
	}
	} catch (CoreException e) {
	JSFUiPlugin.log(
	IStatus.ERROR,
	Messages.JSFFacetInstallPage_ErrorNoWebAppDataModel,
	e);
	}
	}
	}

	public void propertyChanged(DataModelEvent event) {
	if (webAppDataModel != null){
	String propertyName = event.getPropertyName();
	if (propertyName.equals(IJ2EEModuleFacetInstallDataModelProperties.CONFIG_FOLDER)){
	model.setStringProperty(WEBCONTENT_DIR, event.getProperty().toString());
	}
	}
	super.propertyChanged(event);
	}

	public void dispose() {
	if (webAppDataModel != null)
	webAppDataModel.removeListener(this);
	super.dispose();
	}
	protected void restoreDefaultSettings() {
	initializeValues();
	}
	}