ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/wizards/extension/BaseExtensionPointMainPage.java - pde/eclipse.pde.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2007 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.pde.internal.ui.wizards.extension;

 import org.eclipse.pde.internal.ui.dialogs.PluginSelectionDialog;

 import java.io.*;
 import org.eclipse.core.resources.*;
 import org.eclipse.core.runtime.*;
 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.operation.IRunnableWithProgress;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.viewers.ViewerFilter;
 import org.eclipse.jface.window.Window;
 import org.eclipse.jface.wizard.WizardPage;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.pde.core.plugin.IPluginModelBase;
 import org.eclipse.pde.core.plugin.PluginRegistry;
 import org.eclipse.pde.internal.core.PDECore;
 import org.eclipse.pde.internal.core.ischema.IDocumentSection;
 import org.eclipse.pde.internal.core.ischema.ISchemaAttribute;
 import org.eclipse.pde.internal.core.schema.*;
 import org.eclipse.pde.internal.core.util.CoreUtility;
 import org.eclipse.pde.internal.core.util.IdUtil;
 import org.eclipse.pde.internal.ui.*;
 import org.eclipse.pde.internal.ui.util.SWTUtil;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.*;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.*;
 import org.eclipse.ui.*;
 import org.eclipse.ui.actions.WorkspaceModifyOperation;
 import org.eclipse.ui.dialogs.ElementTreeSelectionDialog;
 import org.eclipse.ui.ide.IDE;
 import org.eclipse.ui.model.WorkbenchContentProvider;
 import org.eclipse.ui.model.WorkbenchLabelProvider;
 import org.eclipse.ui.part.FileEditorInput;
 import org.eclipse.ui.views.navigator.ResourceComparator;

 public abstract class BaseExtensionPointMainPage extends WizardPage {
 	public static final String SETTINGS_PLUGIN_ID = "BaseExtensionPoint.settings.pluginId"; //$NON-NLS-1$
 	public static final String SCHEMA_DIR = "schema"; //$NON-NLS-1$

 	protected IContainer fContainer;
 	protected Text fIdText;
 	protected Text fPluginIdText;
 	protected Text fNameText;
 	protected Text fSchemaText;
 	protected Text fSchemaLocationText;
 	protected Button fOpenSchemaButton;
 	protected Button fSharedSchemaButton;
 	protected Button fPluginBrowseButton;
 	protected Button fFindLocationButton;

 	public BaseExtensionPointMainPage(IContainer container) {
 		super("newExtensionPoint"); //$NON-NLS-1$
 		fContainer = container;
 	}

 	public void createControl(Composite parent) {
 		Composite container = new Composite(parent, SWT.NONE);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 3;
 		layout.verticalSpacing = 9;
 		layout.makeColumnsEqualWidth = false;
 		container.setLayout(layout);
 		Label label;
 		GridData gd;
 		if (isPluginIdNeeded()) {
 			label = new Label(container, SWT.NONE);
 			label.setText(PDEUIMessages.BaseExtensionPoint_pluginId);
 			fPluginIdText = new Text(container, SWT.SINGLE | SWT.BORDER);
 			gd = new GridData(GridData.FILL_HORIZONTAL);
 			gd.horizontalSpan = 1;
 			gd.widthHint = 275;
 			fPluginIdText.setLayoutData(gd);
 			fPluginIdText.addModifyListener(new ModifyListener() {
 				public void modifyText(ModifyEvent e) {
 					validatePage();
 				}
 			});
 			fPluginBrowseButton = new Button(container, SWT.PUSH);
 			gd = new GridData(GridData.HORIZONTAL_ALIGN_END);
 			gd.horizontalSpan = 1;
 			gd.widthHint = 50;
 			fPluginBrowseButton.setLayoutData(gd);
 			fPluginBrowseButton.setText(PDEUIMessages.BaseExtensionPointMainPage_pluginBrowse);
 			fPluginBrowseButton.setToolTipText(PDEUIMessages.BaseExtensionPointMainPage_pluginId_tooltip);
 			fPluginBrowseButton.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent e) {
 					handlePluginBrowse();
 				}
 			});
 			SWTUtil.setButtonDimensionHint(fPluginBrowseButton);
 		}
 		label = new Label(container, SWT.NONE);
 		label.setText(PDEUIMessages.BaseExtensionPoint_id);
 		fIdText = new Text(container, SWT.SINGLE | SWT.BORDER);
 		gd = new GridData(GridData.FILL_HORIZONTAL);
 		gd.horizontalSpan = 2;
 		fIdText.setLayoutData(gd);
 		fIdText.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				// setting the text will trigger validation
 				// do not implicitly validate here
 				fSchemaText.setText(getSchemaLocation() + (getSchemaLocation().length() > 0 ? "/" : "") + fIdText.getText() + ".exsd"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 			}
 		});
 		label = new Label(container, SWT.NONE);
 		label.setText(PDEUIMessages.BaseExtensionPoint_name);
 		fNameText = new Text(container, SWT.SINGLE | SWT.BORDER);
 		gd = new GridData(GridData.FILL_HORIZONTAL);
 		gd.horizontalSpan = 2;
 		fNameText.setLayoutData(gd);
 		fNameText.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				validatePage();
 			}
 		});
 		if (isPluginIdNeeded() && !isPluginIdFinal()) {
 			label = new Label(container, SWT.NONE);
 			label.setText(PDEUIMessages.BaseExtensionPoint_schemaLocation);
 			fSchemaLocationText = new Text(container, SWT.SINGLE | SWT.BORDER);
 			gd = new GridData(GridData.FILL_HORIZONTAL);
 			gd.widthHint = 150;
 			gd.grabExcessHorizontalSpace = true;
 			fSchemaLocationText.setLayoutData(gd);
 			fSchemaLocationText.addModifyListener(new ModifyListener() {
 				public void modifyText(ModifyEvent e) {
 					validatePage();
 				}
 			});
 			fFindLocationButton = new Button(container, SWT.PUSH);
 			gd = new GridData(GridData.HORIZONTAL_ALIGN_END);
 			gd.widthHint = 50;
 			fFindLocationButton.setLayoutData(gd);
 			fFindLocationButton.setText(PDEUIMessages.BaseExtensionPointMainPage_findBrowse);
 			fFindLocationButton.setToolTipText(PDEUIMessages.BaseExtensionPointMainPage_schemaLocation_tooltip);
 			fFindLocationButton.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent e) {
 					handleSchemaLocation();
 				}
 			});
 			SWTUtil.setButtonDimensionHint(fFindLocationButton);
 		}
 		label = new Label(container, SWT.NONE);
 		label.setText(PDEUIMessages.BaseExtensionPoint_schema);
 		fSchemaText = new Text(container, SWT.SINGLE | SWT.BORDER);
 		gd = new GridData(GridData.FILL_HORIZONTAL);
 		gd.horizontalSpan = 2;
 		fSchemaText.setLayoutData(gd);
 		fSchemaText.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				validatePage();
 			}
 		});
 		if (isSharedSchemaSwitchNeeded()) {
 			fSharedSchemaButton = new Button(container, SWT.CHECK);
 			fSharedSchemaButton.setText(PDEUIMessages.BaseExtensionPoint_shared);
 			gd = new GridData(GridData.FILL_HORIZONTAL);
 			gd.horizontalSpan = 2;
 			fSharedSchemaButton.setLayoutData(gd);
 		}
 		fOpenSchemaButton = new Button(container, SWT.CHECK);
 		fOpenSchemaButton.setText(PDEUIMessages.BaseExtensionPoint_edit);
 		fOpenSchemaButton.setSelection(true);
 		gd = new GridData(GridData.FILL_HORIZONTAL);
 		gd.horizontalSpan = 2;
 		fOpenSchemaButton.setLayoutData(gd);
 		if (isPluginIdNeeded())
 			fPluginIdText.setFocus();
 		else
 			fIdText.setFocus();
 		setControl(container);
 		initializeValues();
 		validatePage();
 		// do not start with an error message, convert to regular message
 		String error = getErrorMessage();
 		if (error != null) {
 			setMessage(error);
 			setErrorMessage(null);
 		}
 		Dialog.applyDialogFont(container);
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(container, IHelpContextIds.NEW_SCHEMA);
 	}

 	private InputStream createSchemaStream(String pluginId, String pointId, String name, boolean shared) {
 		if (name.length() == 0)
 			name = pointId;
 		EditableSchema schema = new EditableSchema(pluginId, pointId, name, false);
 		schema.setDescription(PDEUIMessages.BaseExtensionPoint_sections_overview);
 		DocumentSection section;
 		section = new DocumentSection(schema, IDocumentSection.SINCE, PDEUIMessages.BaseExtensionPointMainPage_since);
 		section.setDescription(PDEUIMessages.BaseExtensionPoint_sections_since);
 		schema.addDocumentSection(section);
 		SchemaElement element;
 		if (!shared) {
 			element = new SchemaRootElement(schema, "extension"); //$NON-NLS-1$
 			SchemaComplexType complexType = new SchemaComplexType(schema);
 			element.setType(complexType);
 			SchemaAttribute attribute = new SchemaAttribute(element, "point"); //$NON-NLS-1$
 			attribute.setType(new SchemaSimpleType(schema, "string")); //$NON-NLS-1$
 			attribute.setUse(ISchemaAttribute.REQUIRED);
 			complexType.addAttribute(attribute);
 			attribute = new SchemaAttribute(element, "id"); //$NON-NLS-1$
 			attribute.setType(new SchemaSimpleType(schema, "string")); //$NON-NLS-1$
 			complexType.addAttribute(attribute);
 			attribute = new SchemaAttribute(element, "name"); //$NON-NLS-1$
 			attribute.setType(new SchemaSimpleType(schema, "string")); //$NON-NLS-1$
 			attribute.setTranslatableProperty(true);
 			complexType.addAttribute(attribute);
 			schema.addElement(element);
 		}
 		section = new DocumentSection(schema, IDocumentSection.EXAMPLES, "Examples"); //$NON-NLS-1$
 		section.setDescription(PDEUIMessages.BaseExtensionPoint_sections_usage);
 		schema.addDocumentSection(section);
 		section = new DocumentSection(schema, IDocumentSection.API_INFO, "API Information"); //$NON-NLS-1$
 		section.setDescription(PDEUIMessages.BaseExtensionPoint_sections_api);
 		schema.addDocumentSection(section);
 		section = new DocumentSection(schema, IDocumentSection.IMPLEMENTATION, "Supplied Implementation"); //$NON-NLS-1$
 		section.setDescription(PDEUIMessages.BaseExtensionPoint_sections_supplied);
 		schema.addDocumentSection(section);
 		section = new DocumentSection(schema, IDocumentSection.COPYRIGHT, "Copyright"); //$NON-NLS-1$
 		section.setDescription(PDEUIMessages.BaseExtensionPoint_sections_copyright);
 		schema.addDocumentSection(section);
 		StringWriter swriter = new StringWriter();
 		try {
 			PrintWriter writer = new PrintWriter(swriter, true);
 			schema.save(writer);
 			swriter.close();
 		} catch (IOException e) {
 			PDEPlugin.logException(e);
 		}
 		try {
 			return new ByteArrayInputStream(swriter.toString().getBytes("UTF8")); //$NON-NLS-1$
 		} catch (UnsupportedEncodingException e) {
 			return new ByteArrayInputStream(new byte[0]);
 		}
 	}

 	private IFile generateSchemaFile(String pluginId, String id, String name, boolean shared, String schema, IProgressMonitor monitor) throws CoreException {
 		IFile schemaFile = null;

 		IWorkspace workspace = fContainer.getWorkspace();
 		IPath schemaPath = new Path(schema).removeLastSegments(1);
 		IPath newSchemaPath = fContainer.getProjectRelativePath().append(schemaPath);
 		monitor.subTask(PDEUIMessages.BaseExtensionPoint_generating);
 		if (newSchemaPath.isEmpty() == false) {
 			IFolder folder = fContainer.getProject().getFolder(newSchemaPath);
 			CoreUtility.createFolder(folder);
 		}
 		InputStream source = createSchemaStream(pluginId, id, name, shared);
 		IPath filePath = fContainer.getFullPath().append(schema);
 		schemaFile = workspace.getRoot().getFile(filePath);
 		if (!schemaFile.exists()) {
 			// create for the first time
 			schemaFile.create(source, true, monitor);
 		} else {
 			schemaFile.setContents(source, true, false, monitor);
 		}
 		IDE.setDefaultEditor(schemaFile, IPDEUIConstants.SCHEMA_EDITOR_ID);
 		return schemaFile;
 	}

 	public IRunnableWithProgress getOperation() {
 		final boolean openFile = fOpenSchemaButton.getSelection();
 		final String id = fIdText.getText();
 		final String name = fNameText.getText();
 		final String schema = fSchemaText.getText();
 		final boolean shared = fSharedSchemaButton != null ? fSharedSchemaButton.getSelection() : false;
 		IRunnableWithProgress operation = new WorkspaceModifyOperation() {
 			public void execute(final IProgressMonitor monitor) {
 				try {
 					Display.getDefault().asyncExec(new Runnable() {

 						public void run() {
 							String schemaName = schema;
 							if (!schema.endsWith(".exsd")) //$NON-NLS-1$
 								schemaName = schema + ".exsd"; //$NON-NLS-1$

 							IFile file = fContainer.getFile(new Path(schema));
 							// do not overwrite if schema already exists
 							if (!file.exists())
 								try {
 									file = generateSchemaFile(getPluginId(), id, name, shared, schemaName, monitor);
 								} catch (CoreException e) {
 									PDEPlugin.logException(e);
 								}

 							if (file != null && openFile) {
 								fSchemaText.setText(file.getProjectRelativePath().toString());
 								openSchemaFile(file);
 							}
 						}

 					});

 				} finally {
 					monitor.done();
 				}
 			}
 		};
 		return operation;
 	}

 	public String getSchemaLocation() {
 		if (fSchemaText != null) {
 			String schema = fSchemaText.getText();
 			if (schema.length() == 0) {
 				if (fSchemaLocationText != null && SCHEMA_DIR.equals(new Path(fSchemaLocationText.getText()).lastSegment())) {
 					return ""; //$NON-NLS-1$
 				}
 				return SCHEMA_DIR;
 			}

 			int loc = schema.lastIndexOf("/"); //$NON-NLS-1$
 			if (loc != -1)
 				return schema.substring(0, loc);
 		}
 		return ""; //$NON-NLS-1$
 	}

 	public String getPluginId() {
 		if (fPluginIdText != null) {
 			return fPluginIdText.getText();
 		}
 		return ""; //$NON-NLS-1$
 	}

 	protected boolean isPluginIdNeeded() {
 		return false;
 	}

 	protected boolean isPluginIdFinal() {
 		return false;
 	}

 	protected boolean isSharedSchemaSwitchNeeded() {
 		return false;
 	}

 	private void openSchemaFile(final IFile file) {
 		final IWorkbenchWindow ww = PDEPlugin.getActiveWorkbenchWindow();
 		Display d = ww.getShell().getDisplay();
 		d.asyncExec(new Runnable() {
 			public void run() {
 				try {
 					String editorId = IPDEUIConstants.SCHEMA_EDITOR_ID;
 					ww.getActivePage().openEditor(new FileEditorInput(file), editorId);
 				} catch (PartInitException e) {
 					PDEPlugin.logException(e);
 				}
 			}
 		});
 	}

 	private void validatePage() {
 		// clear opening message
 		setMessage(null);
 		String message = validateFieldContents();
 		setErrorMessage(message);
 		setPageComplete(message == null);
 	}

 	protected abstract String validateFieldContents();

 	protected abstract void initializeValues();

 	protected String validateExtensionPointID() {

 		// Verify not zero length
 		String id = fIdText.getText();
 		if (id.length() == 0)
 			return PDEUIMessages.BaseExtensionPointMainPage_missingExtensionPointID;

 		// For 3.2 or greater plug-ins verify that it is a valid composite ID
 		// and that it has a valid namespace
 		// For 3.1 and lower plug-ins verify that it is a valid simple ID
 		String pluginID = getPluginId();
 		IPluginModelBase model = PluginRegistry.findModel(pluginID);
 		// Verify that the plugin was found
 		if (model == null) {
 			return NLS.bind(PDEUIMessages.BaseExtensionPointMainPage_errorMsgPluginNotFound, pluginID);
 		}

 		String schemaVersion = model.getPluginBase().getSchemaVersion();
 		if (schemaVersion == null || Float.parseFloat(schemaVersion) >= 3.2) {
 			if (!IdUtil.isValidCompositeID(id))
 				return PDEUIMessages.BaseExtensionPointMainPage_invalidCompositeID;

 		} else if (!IdUtil.isValidSimpleID(id))
 			return PDEUIMessages.BaseExtensionPointMainPage_invalidSimpleID;

 		return null;
 	}

 	protected String validateExtensionPointName() {
 		// Verify not zero length
 		if (fNameText.getText().length() == 0)
 			return PDEUIMessages.BaseExtensionPointMainPage_missingExtensionPointName;

 		return null;
 	}

 	protected String validateExtensionPointSchema() {
 		// Verify not zero length
 		if (fSchemaText.getText().length() == 0)
 			return PDEUIMessages.BaseExtensionPointMainPage_missingExtensionPointSchema;

 		return null;
 	}

 	private void handlePluginBrowse() {
 		PluginSelectionDialog dialog = new PluginSelectionDialog(getShell(), PluginRegistry.getWorkspaceModels(), false);
 		dialog.create();
 		if (dialog.open() == Window.OK) {
 			IPluginModelBase workspaceModelBase = (IPluginModelBase) dialog.getFirstResult();
 			fPluginIdText.setText(workspaceModelBase.getPluginBase().getId());
 		}
 	}

 	private void handleSchemaLocation() {
 		ElementTreeSelectionDialog dialog = new ElementTreeSelectionDialog(getShell(), new WorkbenchLabelProvider(), new WorkbenchContentProvider());
 		dialog.setTitle(PDEUIMessages.BaseExtensionPointMainPage_schemaLocation_title);
 		dialog.setMessage(PDEUIMessages.BaseExtensionPointMainPage_schemaLocation_desc);
 		dialog.setDoubleClickSelects(false);
 		dialog.setAllowMultiple(false);
 		dialog.addFilter(new ViewerFilter() {
 			public boolean select(Viewer viewer, Object parentElement, Object element) {
 				if (element instanceof IFile)
 					return false;
 				return true;
 			}
 		});

 		dialog.setInput(PDEPlugin.getWorkspace().getRoot());
 		dialog.setComparator(new ResourceComparator(ResourceComparator.NAME));
 		dialog.setInitialSelection(fContainer);
 		dialog.create();
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(dialog.getShell(), IHelpContextIds.CONTAINER_SELECTION);
 		if (dialog.open() == Window.OK) {
 			Object[] elements = dialog.getResult();
 			if (elements.length > 0) {
 				IResource elem = (IResource) elements[0];
 				String newPath = getWorkspaceRelativePath(elem.getLocation().toString());
 				fSchemaLocationText.setText(newPath + "/"); //$NON-NLS-1$
 			}
 		}
 	}

 	private String getWorkspaceRelativePath(String path) {
 		String workspacePath = PDECore.getWorkspace().getRoot().getLocation().toString();
 		if (path.startsWith(workspacePath))
 			path = path.replaceFirst(workspacePath, ""); //$NON-NLS-1$
 		return path;
 	}

 	public String getInvalidIdMessage() {
 		// No validation done (other than making sure id is not blank)
 		return null;
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2000, 2007 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.pde.internal.ui.wizards.extension;

	import org.eclipse.pde.internal.ui.dialogs.PluginSelectionDialog;

	import java.io.*;
	import org.eclipse.core.resources.*;
	import org.eclipse.core.runtime.*;
	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.operation.IRunnableWithProgress;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.jface.viewers.ViewerFilter;
	import org.eclipse.jface.window.Window;
	import org.eclipse.jface.wizard.WizardPage;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.pde.core.plugin.IPluginModelBase;
	import org.eclipse.pde.core.plugin.PluginRegistry;
	import org.eclipse.pde.internal.core.PDECore;
	import org.eclipse.pde.internal.core.ischema.IDocumentSection;
	import org.eclipse.pde.internal.core.ischema.ISchemaAttribute;
	import org.eclipse.pde.internal.core.schema.*;
	import org.eclipse.pde.internal.core.util.CoreUtility;
	import org.eclipse.pde.internal.core.util.IdUtil;
	import org.eclipse.pde.internal.ui.*;
	import org.eclipse.pde.internal.ui.util.SWTUtil;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.*;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.*;
	import org.eclipse.ui.*;
	import org.eclipse.ui.actions.WorkspaceModifyOperation;
	import org.eclipse.ui.dialogs.ElementTreeSelectionDialog;
	import org.eclipse.ui.ide.IDE;
	import org.eclipse.ui.model.WorkbenchContentProvider;
	import org.eclipse.ui.model.WorkbenchLabelProvider;
	import org.eclipse.ui.part.FileEditorInput;
	import org.eclipse.ui.views.navigator.ResourceComparator;

	public abstract class BaseExtensionPointMainPage extends WizardPage {
	public static final String SETTINGS_PLUGIN_ID = "BaseExtensionPoint.settings.pluginId"; //$NON-NLS-1$
	public static final String SCHEMA_DIR = "schema"; //$NON-NLS-1$

	protected IContainer fContainer;
	protected Text fIdText;
	protected Text fPluginIdText;
	protected Text fNameText;
	protected Text fSchemaText;
	protected Text fSchemaLocationText;
	protected Button fOpenSchemaButton;
	protected Button fSharedSchemaButton;
	protected Button fPluginBrowseButton;
	protected Button fFindLocationButton;

	public BaseExtensionPointMainPage(IContainer container) {
	super("newExtensionPoint"); //$NON-NLS-1$
	fContainer = container;
	}

	public void createControl(Composite parent) {
	Composite container = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 3;
	layout.verticalSpacing = 9;
	layout.makeColumnsEqualWidth = false;
	container.setLayout(layout);
	Label label;
	GridData gd;
	if (isPluginIdNeeded()) {
	label = new Label(container, SWT.NONE);
	label.setText(PDEUIMessages.BaseExtensionPoint_pluginId);
	fPluginIdText = new Text(container, SWT.SINGLE \| SWT.BORDER);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	gd.horizontalSpan = 1;
	gd.widthHint = 275;
	fPluginIdText.setLayoutData(gd);
	fPluginIdText.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	validatePage();
	}
	});
	fPluginBrowseButton = new Button(container, SWT.PUSH);
	gd = new GridData(GridData.HORIZONTAL_ALIGN_END);
	gd.horizontalSpan = 1;
	gd.widthHint = 50;
	fPluginBrowseButton.setLayoutData(gd);
	fPluginBrowseButton.setText(PDEUIMessages.BaseExtensionPointMainPage_pluginBrowse);
	fPluginBrowseButton.setToolTipText(PDEUIMessages.BaseExtensionPointMainPage_pluginId_tooltip);
	fPluginBrowseButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	handlePluginBrowse();
	}
	});
	SWTUtil.setButtonDimensionHint(fPluginBrowseButton);
	}
	label = new Label(container, SWT.NONE);
	label.setText(PDEUIMessages.BaseExtensionPoint_id);
	fIdText = new Text(container, SWT.SINGLE \| SWT.BORDER);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	gd.horizontalSpan = 2;
	fIdText.setLayoutData(gd);
	fIdText.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	// setting the text will trigger validation
	// do not implicitly validate here
	fSchemaText.setText(getSchemaLocation() + (getSchemaLocation().length() > 0 ? "/" : "") + fIdText.getText() + ".exsd"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
	}
	});
	label = new Label(container, SWT.NONE);
	label.setText(PDEUIMessages.BaseExtensionPoint_name);
	fNameText = new Text(container, SWT.SINGLE \| SWT.BORDER);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	gd.horizontalSpan = 2;
	fNameText.setLayoutData(gd);
	fNameText.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	validatePage();
	}
	});
	if (isPluginIdNeeded() && !isPluginIdFinal()) {
	label = new Label(container, SWT.NONE);
	label.setText(PDEUIMessages.BaseExtensionPoint_schemaLocation);
	fSchemaLocationText = new Text(container, SWT.SINGLE \| SWT.BORDER);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	gd.widthHint = 150;
	gd.grabExcessHorizontalSpace = true;
	fSchemaLocationText.setLayoutData(gd);
	fSchemaLocationText.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	validatePage();
	}
	});
	fFindLocationButton = new Button(container, SWT.PUSH);
	gd = new GridData(GridData.HORIZONTAL_ALIGN_END);
	gd.widthHint = 50;
	fFindLocationButton.setLayoutData(gd);
	fFindLocationButton.setText(PDEUIMessages.BaseExtensionPointMainPage_findBrowse);
	fFindLocationButton.setToolTipText(PDEUIMessages.BaseExtensionPointMainPage_schemaLocation_tooltip);
	fFindLocationButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	handleSchemaLocation();
	}
	});
	SWTUtil.setButtonDimensionHint(fFindLocationButton);
	}
	label = new Label(container, SWT.NONE);
	label.setText(PDEUIMessages.BaseExtensionPoint_schema);
	fSchemaText = new Text(container, SWT.SINGLE \| SWT.BORDER);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	gd.horizontalSpan = 2;
	fSchemaText.setLayoutData(gd);
	fSchemaText.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	validatePage();
	}
	});
	if (isSharedSchemaSwitchNeeded()) {
	fSharedSchemaButton = new Button(container, SWT.CHECK);
	fSharedSchemaButton.setText(PDEUIMessages.BaseExtensionPoint_shared);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	gd.horizontalSpan = 2;
	fSharedSchemaButton.setLayoutData(gd);
	}
	fOpenSchemaButton = new Button(container, SWT.CHECK);
	fOpenSchemaButton.setText(PDEUIMessages.BaseExtensionPoint_edit);
	fOpenSchemaButton.setSelection(true);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	gd.horizontalSpan = 2;
	fOpenSchemaButton.setLayoutData(gd);
	if (isPluginIdNeeded())
	fPluginIdText.setFocus();
	else
	fIdText.setFocus();
	setControl(container);
	initializeValues();
	validatePage();
	// do not start with an error message, convert to regular message
	String error = getErrorMessage();
	if (error != null) {
	setMessage(error);
	setErrorMessage(null);
	}
	Dialog.applyDialogFont(container);
	PlatformUI.getWorkbench().getHelpSystem().setHelp(container, IHelpContextIds.NEW_SCHEMA);
	}

	private InputStream createSchemaStream(String pluginId, String pointId, String name, boolean shared) {
	if (name.length() == 0)
	name = pointId;
	EditableSchema schema = new EditableSchema(pluginId, pointId, name, false);
	schema.setDescription(PDEUIMessages.BaseExtensionPoint_sections_overview);
	DocumentSection section;
	section = new DocumentSection(schema, IDocumentSection.SINCE, PDEUIMessages.BaseExtensionPointMainPage_since);
	section.setDescription(PDEUIMessages.BaseExtensionPoint_sections_since);
	schema.addDocumentSection(section);
	SchemaElement element;
	if (!shared) {
	element = new SchemaRootElement(schema, "extension"); //$NON-NLS-1$
	SchemaComplexType complexType = new SchemaComplexType(schema);
	element.setType(complexType);
	SchemaAttribute attribute = new SchemaAttribute(element, "point"); //$NON-NLS-1$
	attribute.setType(new SchemaSimpleType(schema, "string")); //$NON-NLS-1$
	attribute.setUse(ISchemaAttribute.REQUIRED);
	complexType.addAttribute(attribute);
	attribute = new SchemaAttribute(element, "id"); //$NON-NLS-1$
	attribute.setType(new SchemaSimpleType(schema, "string")); //$NON-NLS-1$
	complexType.addAttribute(attribute);
	attribute = new SchemaAttribute(element, "name"); //$NON-NLS-1$
	attribute.setType(new SchemaSimpleType(schema, "string")); //$NON-NLS-1$
	attribute.setTranslatableProperty(true);
	complexType.addAttribute(attribute);
	schema.addElement(element);
	}
	section = new DocumentSection(schema, IDocumentSection.EXAMPLES, "Examples"); //$NON-NLS-1$
	section.setDescription(PDEUIMessages.BaseExtensionPoint_sections_usage);
	schema.addDocumentSection(section);
	section = new DocumentSection(schema, IDocumentSection.API_INFO, "API Information"); //$NON-NLS-1$
	section.setDescription(PDEUIMessages.BaseExtensionPoint_sections_api);
	schema.addDocumentSection(section);
	section = new DocumentSection(schema, IDocumentSection.IMPLEMENTATION, "Supplied Implementation"); //$NON-NLS-1$
	section.setDescription(PDEUIMessages.BaseExtensionPoint_sections_supplied);
	schema.addDocumentSection(section);
	section = new DocumentSection(schema, IDocumentSection.COPYRIGHT, "Copyright"); //$NON-NLS-1$
	section.setDescription(PDEUIMessages.BaseExtensionPoint_sections_copyright);
	schema.addDocumentSection(section);
	StringWriter swriter = new StringWriter();
	try {
	PrintWriter writer = new PrintWriter(swriter, true);
	schema.save(writer);
	swriter.close();
	} catch (IOException e) {
	PDEPlugin.logException(e);
	}
	try {
	return new ByteArrayInputStream(swriter.toString().getBytes("UTF8")); //$NON-NLS-1$
	} catch (UnsupportedEncodingException e) {
	return new ByteArrayInputStream(new byte[0]);
	}
	}

	private IFile generateSchemaFile(String pluginId, String id, String name, boolean shared, String schema, IProgressMonitor monitor) throws CoreException {
	IFile schemaFile = null;

	IWorkspace workspace = fContainer.getWorkspace();
	IPath schemaPath = new Path(schema).removeLastSegments(1);
	IPath newSchemaPath = fContainer.getProjectRelativePath().append(schemaPath);
	monitor.subTask(PDEUIMessages.BaseExtensionPoint_generating);
	if (newSchemaPath.isEmpty() == false) {
	IFolder folder = fContainer.getProject().getFolder(newSchemaPath);
	CoreUtility.createFolder(folder);
	}
	InputStream source = createSchemaStream(pluginId, id, name, shared);
	IPath filePath = fContainer.getFullPath().append(schema);
	schemaFile = workspace.getRoot().getFile(filePath);
	if (!schemaFile.exists()) {
	// create for the first time
	schemaFile.create(source, true, monitor);
	} else {
	schemaFile.setContents(source, true, false, monitor);
	}
	IDE.setDefaultEditor(schemaFile, IPDEUIConstants.SCHEMA_EDITOR_ID);
	return schemaFile;
	}

	public IRunnableWithProgress getOperation() {
	final boolean openFile = fOpenSchemaButton.getSelection();
	final String id = fIdText.getText();
	final String name = fNameText.getText();
	final String schema = fSchemaText.getText();
	final boolean shared = fSharedSchemaButton != null ? fSharedSchemaButton.getSelection() : false;
	IRunnableWithProgress operation = new WorkspaceModifyOperation() {
	public void execute(final IProgressMonitor monitor) {
	try {
	Display.getDefault().asyncExec(new Runnable() {

	public void run() {
	String schemaName = schema;
	if (!schema.endsWith(".exsd")) //$NON-NLS-1$
	schemaName = schema + ".exsd"; //$NON-NLS-1$

	IFile file = fContainer.getFile(new Path(schema));
	// do not overwrite if schema already exists
	if (!file.exists())
	try {
	file = generateSchemaFile(getPluginId(), id, name, shared, schemaName, monitor);
	} catch (CoreException e) {
	PDEPlugin.logException(e);
	}

	if (file != null && openFile) {
	fSchemaText.setText(file.getProjectRelativePath().toString());
	openSchemaFile(file);
	}
	}

	});

	} finally {
	monitor.done();
	}
	}
	};
	return operation;
	}

	public String getSchemaLocation() {
	if (fSchemaText != null) {
	String schema = fSchemaText.getText();
	if (schema.length() == 0) {
	if (fSchemaLocationText != null && SCHEMA_DIR.equals(new Path(fSchemaLocationText.getText()).lastSegment())) {
	return ""; //$NON-NLS-1$
	}
	return SCHEMA_DIR;
	}

	int loc = schema.lastIndexOf("/"); //$NON-NLS-1$
	if (loc != -1)
	return schema.substring(0, loc);
	}
	return ""; //$NON-NLS-1$
	}

	public String getPluginId() {
	if (fPluginIdText != null) {
	return fPluginIdText.getText();
	}
	return ""; //$NON-NLS-1$
	}

	protected boolean isPluginIdNeeded() {
	return false;
	}

	protected boolean isPluginIdFinal() {
	return false;
	}

	protected boolean isSharedSchemaSwitchNeeded() {
	return false;
	}

	private void openSchemaFile(final IFile file) {
	final IWorkbenchWindow ww = PDEPlugin.getActiveWorkbenchWindow();
	Display d = ww.getShell().getDisplay();
	d.asyncExec(new Runnable() {
	public void run() {
	try {
	String editorId = IPDEUIConstants.SCHEMA_EDITOR_ID;
	ww.getActivePage().openEditor(new FileEditorInput(file), editorId);
	} catch (PartInitException e) {
	PDEPlugin.logException(e);
	}
	}
	});
	}

	private void validatePage() {
	// clear opening message
	setMessage(null);
	String message = validateFieldContents();
	setErrorMessage(message);
	setPageComplete(message == null);
	}

	protected abstract String validateFieldContents();

	protected abstract void initializeValues();

	protected String validateExtensionPointID() {

	// Verify not zero length
	String id = fIdText.getText();
	if (id.length() == 0)
	return PDEUIMessages.BaseExtensionPointMainPage_missingExtensionPointID;

	// For 3.2 or greater plug-ins verify that it is a valid composite ID
	// and that it has a valid namespace
	// For 3.1 and lower plug-ins verify that it is a valid simple ID
	String pluginID = getPluginId();
	IPluginModelBase model = PluginRegistry.findModel(pluginID);
	// Verify that the plugin was found
	if (model == null) {
	return NLS.bind(PDEUIMessages.BaseExtensionPointMainPage_errorMsgPluginNotFound, pluginID);
	}

	String schemaVersion = model.getPluginBase().getSchemaVersion();
	if (schemaVersion == null \|\| Float.parseFloat(schemaVersion) >= 3.2) {
	if (!IdUtil.isValidCompositeID(id))
	return PDEUIMessages.BaseExtensionPointMainPage_invalidCompositeID;

	} else if (!IdUtil.isValidSimpleID(id))
	return PDEUIMessages.BaseExtensionPointMainPage_invalidSimpleID;

	return null;
	}

	protected String validateExtensionPointName() {
	// Verify not zero length
	if (fNameText.getText().length() == 0)
	return PDEUIMessages.BaseExtensionPointMainPage_missingExtensionPointName;

	return null;
	}

	protected String validateExtensionPointSchema() {
	// Verify not zero length
	if (fSchemaText.getText().length() == 0)
	return PDEUIMessages.BaseExtensionPointMainPage_missingExtensionPointSchema;

	return null;
	}

	private void handlePluginBrowse() {
	PluginSelectionDialog dialog = new PluginSelectionDialog(getShell(), PluginRegistry.getWorkspaceModels(), false);
	dialog.create();
	if (dialog.open() == Window.OK) {
	IPluginModelBase workspaceModelBase = (IPluginModelBase) dialog.getFirstResult();
	fPluginIdText.setText(workspaceModelBase.getPluginBase().getId());
	}
	}

	private void handleSchemaLocation() {
	ElementTreeSelectionDialog dialog = new ElementTreeSelectionDialog(getShell(), new WorkbenchLabelProvider(), new WorkbenchContentProvider());
	dialog.setTitle(PDEUIMessages.BaseExtensionPointMainPage_schemaLocation_title);
	dialog.setMessage(PDEUIMessages.BaseExtensionPointMainPage_schemaLocation_desc);
	dialog.setDoubleClickSelects(false);
	dialog.setAllowMultiple(false);
	dialog.addFilter(new ViewerFilter() {
	public boolean select(Viewer viewer, Object parentElement, Object element) {
	if (element instanceof IFile)
	return false;
	return true;
	}
	});

	dialog.setInput(PDEPlugin.getWorkspace().getRoot());
	dialog.setComparator(new ResourceComparator(ResourceComparator.NAME));
	dialog.setInitialSelection(fContainer);
	dialog.create();
	PlatformUI.getWorkbench().getHelpSystem().setHelp(dialog.getShell(), IHelpContextIds.CONTAINER_SELECTION);
	if (dialog.open() == Window.OK) {
	Object[] elements = dialog.getResult();
	if (elements.length > 0) {
	IResource elem = (IResource) elements[0];
	String newPath = getWorkspaceRelativePath(elem.getLocation().toString());
	fSchemaLocationText.setText(newPath + "/"); //$NON-NLS-1$
	}
	}
	}

	private String getWorkspaceRelativePath(String path) {
	String workspacePath = PDECore.getWorkspace().getRoot().getLocation().toString();
	if (path.startsWith(workspacePath))
	path = path.replaceFirst(workspacePath, ""); //$NON-NLS-1$
	return path;
	}

	public String getInvalidIdMessage() {
	// No validation done (other than making sure id is not blank)
	return null;
	}

	}