| /******************************************************************************* |
| * Copyright (c) 2000, 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 API and implementation |
| *******************************************************************************/ |
| package org.eclipse.pde.internal.ui.wizards.extension; |
| |
| import java.util.Locale; |
| import java.util.StringTokenizer; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.pde.internal.ui.PDEPlugin; |
| import org.eclipse.pde.internal.ui.PDEUIMessages; |
| import org.eclipse.pde.internal.ui.elements.ElementList; |
| import org.eclipse.pde.internal.ui.wizards.*; |
| import org.eclipse.swt.graphics.Image; |
| |
| public class NewExtensionRegistryReader { |
| public static final String TAG_WIZARD = "wizard"; //$NON-NLS-1$ |
| public static final String TAG_EDITOR_WIZARD = "editorWizard"; //$NON-NLS-1$ |
| public static final String ATT_CATEGORY = "category"; //$NON-NLS-1$ |
| public static final String ATT_SHORTCUTTABLE = "availableAsShortcut"; //$NON-NLS-1$ |
| public static final String CATEGORY_SEPARATOR = "/"; //$NON-NLS-1$ |
| public static final String TAG_CATEGORY = "category"; //$NON-NLS-1$ |
| public static final String TAG_DESCRIPTION = "description"; //$NON-NLS-1$ |
| |
| private final static String UNCATEGORIZED_WIZARD_CATEGORY = "org.eclipse.pde.ui.Other"; //$NON-NLS-1$ |
| private final static String UNCATEGORIZED_WIZARD_CATEGORY_LABEL = "Other"; //$NON-NLS-1$ |
| |
| private boolean editorWizardMode; |
| |
| public NewExtensionRegistryReader() { |
| this(false); |
| } |
| |
| public NewExtensionRegistryReader(boolean editorWizardMode) { |
| this.editorWizardMode = editorWizardMode; |
| } |
| |
| protected WizardCollectionElement createCollectionElement(WizardCollectionElement parent, String id, String label) { |
| WizardCollectionElement newElement = new WizardCollectionElement(id, label, parent); |
| |
| if (parent != null) |
| parent.add(newElement); |
| |
| return newElement; |
| } |
| |
| protected WizardElement createWizardElement(IConfigurationElement config) { |
| String name = config.getAttribute(WizardElement.ATT_NAME); |
| String id = config.getAttribute(WizardElement.ATT_ID); |
| String className = config.getAttribute(WizardElement.ATT_CLASS); |
| String template = config.getAttribute(WizardElement.ATT_TEMPLATE); |
| if (name == null || id == null) |
| return null; |
| if (className == null && template == null) |
| return null; |
| WizardElement element = new WizardElement(config); |
| String imageName = config.getAttribute(WizardElement.ATT_ICON); |
| if (imageName != null) { |
| String pluginID = config.getNamespaceIdentifier(); |
| Image image = PDEPlugin.getDefault().getLabelProvider().getImageFromPlugin(pluginID, imageName); |
| element.setImage(image); |
| } |
| return element; |
| } |
| |
| protected WizardElement createEditorWizardElement(IConfigurationElement config) { |
| String name = config.getAttribute(WizardElement.ATT_NAME); |
| String id = config.getAttribute(WizardElement.ATT_ID); |
| String className = config.getAttribute(WizardElement.ATT_CLASS); |
| String point = config.getAttribute(WizardElement.ATT_POINT); |
| if (name == null || id == null || className == null) |
| return null; |
| if (point == null) |
| return null; |
| WizardElement element = new WizardElement(config); |
| String imageName = config.getAttribute(WizardElement.ATT_ICON); |
| if (imageName != null) { |
| String pluginID = config.getNamespaceIdentifier(); |
| Image image = PDEPlugin.getDefault().getLabelProvider().getImageFromPlugin(pluginID, imageName); |
| element.setImage(image); |
| } |
| return element; |
| } |
| |
| protected String getCategoryStringFor(IConfigurationElement config) { |
| String result = config.getAttribute(ATT_CATEGORY); |
| if (result == null) |
| result = UNCATEGORIZED_WIZARD_CATEGORY; |
| |
| return result; |
| } |
| |
| protected WizardCollectionElement getChildWithID(WizardCollectionElement parent, String id) { |
| Object[] children = parent.getChildren(); |
| |
| if (children != null) { |
| for (int i = 0; i < children.length; i++) { |
| WizardCollectionElement currentChild = (WizardCollectionElement) children[i]; |
| if (currentChild.getId().equals(id)) |
| return currentChild; |
| } |
| } |
| return null; |
| } |
| |
| protected void insertUsingCategory(WizardElement element, ElementList result) { |
| WizardCollectionElement currentResult = (WizardCollectionElement) result; |
| StringTokenizer familyTokenizer = new StringTokenizer(getCategoryStringFor(element.getConfigurationElement()), CATEGORY_SEPARATOR); |
| |
| // use the period-separated sections of the current Wizard's category |
| // to traverse through the NamedSolution "tree" that was previously |
| // created |
| WizardCollectionElement currentCollectionElement = currentResult; // ie.- |
| // root |
| boolean moveToOther = false; |
| |
| while (familyTokenizer.hasMoreElements()) { |
| WizardCollectionElement tempCollectionElement = getChildWithID(currentCollectionElement, familyTokenizer.nextToken()); |
| |
| if (tempCollectionElement == null) { // can't find the path; bump it |
| // to uncategorized |
| moveToOther = true; |
| break; |
| } |
| currentCollectionElement = tempCollectionElement; |
| } |
| |
| if (moveToOther) |
| moveElementToUncategorizedCategory(currentResult, element); |
| else |
| currentCollectionElement.getWizards().add(element); |
| } |
| |
| protected void moveElementToUncategorizedCategory(WizardCollectionElement root, WizardElement element) { |
| WizardCollectionElement otherCategory = getChildWithID(root, UNCATEGORIZED_WIZARD_CATEGORY); |
| |
| if (otherCategory == null) |
| otherCategory = createCollectionElement(root, UNCATEGORIZED_WIZARD_CATEGORY, UNCATEGORIZED_WIZARD_CATEGORY_LABEL); |
| |
| otherCategory.getWizards().add(element); |
| } |
| |
| private void processCategory(IConfigurationElement config, ElementList list) { |
| WizardCollectionElement result = (WizardCollectionElement) list; |
| Category category = null; |
| |
| category = new Category(config); |
| if (category.getID() == null || category.getLabel() == null) { |
| System.out.println(PDEUIMessages.NewExtensionRegistryReader_missingProperty); |
| return; |
| } |
| |
| String[] categoryPath = category.getParentCategoryPath(); |
| WizardCollectionElement parent = result; // ie.- root |
| |
| if (categoryPath != null) { |
| for (int i = 0; i < categoryPath.length; i++) { |
| WizardCollectionElement tempElement = getChildWithID(parent, categoryPath[i]); |
| if (tempElement == null) { |
| parent = null; |
| break; |
| } |
| parent = tempElement; |
| } |
| } |
| |
| if (parent != null) |
| createCollectionElement(parent, category.getID(), category.getLabel()); |
| } |
| |
| protected void processElement(IConfigurationElement element, ElementList result, boolean shortcutsOnly) { |
| String tag = element.getName(); |
| if (tag.equals(TAG_WIZARD) && !editorWizardMode) { |
| WizardElement wizard = createWizardElement(element); |
| if (shortcutsOnly) { |
| String shortcut = element.getAttribute(ATT_SHORTCUTTABLE); |
| if (shortcut != null && shortcut.toLowerCase(Locale.ENGLISH).equals("true")) { //$NON-NLS-1$ |
| result.add(wizard); |
| } |
| } else |
| insertUsingCategory(wizard, result); |
| } else if (tag.equals(TAG_EDITOR_WIZARD) && editorWizardMode) { |
| WizardElement wizard = createEditorWizardElement(element); |
| if (shortcutsOnly) { |
| result.add(wizard); |
| } else |
| insertUsingCategory(wizard, result); |
| } else if (tag.equals(TAG_CATEGORY)) { |
| if (shortcutsOnly == false) { |
| processCategory(element, result); |
| } |
| } |
| } |
| |
| public ElementList readRegistry(String pluginId, String pluginPointId, boolean shortcutsOnly) { |
| ElementList result = (shortcutsOnly) ? (new ElementList("shortcuts")) //$NON-NLS-1$ |
| : (new WizardCollectionElement("root", "root", null)); //$NON-NLS-1$ //$NON-NLS-2$ |
| IExtensionRegistry registry = Platform.getExtensionRegistry(); |
| IExtensionPoint point = registry.getExtensionPoint(pluginId, pluginPointId); |
| if (point == null) |
| return null; |
| |
| IExtension[] extensions = point.getExtensions(); |
| for (int i = 0; i < extensions.length; i++) { |
| IConfigurationElement[] elements = extensions[i].getConfigurationElements(); |
| for (int j = 0; j < elements.length; j++) { |
| IConfigurationElement config = elements[j]; |
| processElement(config, result, shortcutsOnly); |
| } |
| } |
| return result; |
| } |
| } |