| /******************************************************************************* |
| * Copyright (c) 2003, 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.jdt.internal.ui.navigator; |
| |
| import java.util.Arrays; |
| import java.util.Iterator; |
| import java.util.LinkedHashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.eclipse.core.resources.IContainer; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.IWorkspaceRoot; |
| |
| import org.eclipse.jface.preference.IPreferenceStore; |
| import org.eclipse.jface.util.IPropertyChangeListener; |
| import org.eclipse.jface.util.PropertyChangeEvent; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| import org.eclipse.ui.IMemento; |
| import org.eclipse.ui.navigator.ICommonContentExtensionSite; |
| import org.eclipse.ui.navigator.IExtensionStateModel; |
| import org.eclipse.ui.navigator.IPipelinedTreeContentProvider; |
| import org.eclipse.ui.navigator.PipelinedShapeModification; |
| import org.eclipse.ui.navigator.PipelinedViewerUpdate; |
| |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IJavaModel; |
| import org.eclipse.jdt.core.JavaCore; |
| |
| import org.eclipse.jdt.ui.PreferenceConstants; |
| |
| import org.eclipse.jdt.internal.ui.navigator.IExtensionStateConstants.Values; |
| import org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider; |
| |
| public class JavaNavigatorContentProvider extends |
| PackageExplorerContentProvider implements IPipelinedTreeContentProvider { |
| |
| public JavaNavigatorContentProvider() { |
| super(false); |
| } |
| |
| public JavaNavigatorContentProvider(boolean provideMembers) { |
| super(provideMembers); |
| } |
| |
| public static final String JDT_EXTENSION_ID = "org.eclipse.jdt.ui.javaContent"; //$NON-NLS-1$ |
| |
| private IExtensionStateModel fStateModel; |
| |
| private Object fRealInput; |
| |
| public void init(ICommonContentExtensionSite commonContentExtensionSite) { |
| IExtensionStateModel stateModel = commonContentExtensionSite |
| .getExtensionStateModel(); |
| IMemento memento = commonContentExtensionSite.getMemento(); |
| |
| fStateModel = stateModel; |
| restoreState(memento); |
| fStateModel.addPropertyChangeListener(new IPropertyChangeListener() { |
| public void propertyChange(PropertyChangeEvent event) { |
| if (Values.IS_LAYOUT_FLAT.equals(event.getProperty())) { |
| if (event.getNewValue() != null) { |
| boolean newValue = ((Boolean) event.getNewValue()) |
| .booleanValue() ? true : false; |
| setIsFlatLayout(newValue); |
| } |
| } |
| |
| } |
| }); |
| |
| IPreferenceStore store = PreferenceConstants.getPreferenceStore(); |
| boolean showCUChildren = store |
| .getBoolean(PreferenceConstants.SHOW_CU_CHILDREN); |
| setProvideMembers(showCUChildren); |
| } |
| |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| fRealInput = newInput; |
| super.inputChanged(viewer, oldInput, findInputElement(newInput)); |
| } |
| |
| public Object getParent(Object element) { |
| Object parent= super.getParent(element); |
| if (parent instanceof IJavaModel) { |
| return getViewerInput() != null ? fRealInput : parent; |
| } |
| return parent; |
| } |
| |
| public Object[] getElements(Object inputElement) { |
| if (inputElement instanceof IWorkspaceRoot) |
| return super.getElements(JavaCore |
| .create((IWorkspaceRoot) inputElement)); |
| return super.getElements(inputElement); |
| } |
| |
| private Object findInputElement(Object newInput) { |
| if (newInput instanceof IWorkspaceRoot) { |
| return JavaCore.create((IWorkspaceRoot) newInput); |
| } |
| return newInput; |
| } |
| |
| public void restoreState(IMemento memento) { |
| |
| } |
| |
| public void saveState(IMemento memento) { |
| |
| } |
| |
| public void getPipelinedChildren(Object parent, Set currentChildren) { |
| Object[] children = getChildren(parent); |
| for (Iterator iter = currentChildren.iterator(); iter.hasNext();) |
| if (iter.next() instanceof IResource) |
| iter.remove(); |
| currentChildren.addAll(Arrays.asList(children)); |
| } |
| |
| public void getPipelinedElements(Object input, Set currentElements) { |
| Object[] children = getElements(input); |
| |
| for (Iterator iter = currentElements.iterator(); iter.hasNext();) |
| if (iter.next() instanceof IResource) |
| iter.remove(); |
| |
| currentElements.addAll(Arrays.asList(children)); |
| } |
| |
| public Object getPipelinedParent(Object object, Object suggestedParent) { |
| return getParent(object); |
| } |
| |
| public PipelinedShapeModification interceptAdd( |
| PipelinedShapeModification addModification) { |
| convertToJavaElements(addModification); |
| return addModification; |
| } |
| |
| public PipelinedShapeModification interceptRemove( |
| PipelinedShapeModification removeModification) { |
| convertToJavaElements(removeModification.getChildren()); |
| return removeModification; |
| } |
| |
| /** |
| * Converts the shape modification to use Java elements. |
| * |
| * |
| * @param modification |
| * the shape modification to convert |
| */ |
| private boolean convertToJavaElements( |
| PipelinedShapeModification modification) { |
| Object parent = modification.getParent(); |
| if (parent instanceof IContainer) { |
| IJavaElement element = JavaCore.create((IContainer) parent); |
| if (element != null && element.exists()) { |
| // we don't convert the root |
| if( !(element instanceof IJavaModel)) |
| modification.setParent(element); |
| return convertToJavaElements(modification.getChildren()); |
| |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Converts the shape modification to use Java elements. |
| * |
| * |
| * @param currentChildren |
| * The set of current children that would be contributed or refreshed in the viewer. |
| */ |
| private boolean convertToJavaElements(Set currentChildren) { |
| |
| LinkedHashSet convertedChildren = new LinkedHashSet(); |
| IJavaElement newChild; |
| for (Iterator childrenItr = currentChildren.iterator(); childrenItr |
| .hasNext();) { |
| Object child = childrenItr.next(); |
| if (child instanceof IResource) |
| if ((newChild = JavaCore.create((IResource) child)) != null |
| && newChild.exists()) { |
| childrenItr.remove(); |
| convertedChildren.add(newChild); |
| } |
| } |
| if (!convertedChildren.isEmpty()) { |
| currentChildren.addAll(convertedChildren); |
| return true; |
| } |
| return false; |
| |
| } |
| |
| public boolean interceptRefresh(PipelinedViewerUpdate refreshSynchronization) { |
| return convertToJavaElements(refreshSynchronization.getRefreshTargets()); |
| |
| } |
| |
| public boolean interceptUpdate(PipelinedViewerUpdate updateSynchronization) { |
| return convertToJavaElements(updateSynchronization.getRefreshTargets()); |
| } |
| |
| protected void postAdd(final Object parent, final Object element) { |
| if (parent instanceof IJavaModel) |
| super.postAdd(((IJavaModel) parent).getWorkspace(), element); |
| else |
| super.postAdd(parent, element); |
| } |
| |
| |
| protected void postRefresh(final List toRefresh, final boolean updateLabels) { |
| for (Iterator iter = toRefresh.iterator(); iter.hasNext();) { |
| Object element = iter.next(); |
| if(element instanceof IJavaModel) { |
| iter.remove(); |
| toRefresh.add(fRealInput); |
| super.postRefresh(toRefresh, updateLabels); |
| return; |
| } |
| } |
| super.postRefresh(toRefresh, updateLabels); |
| |
| } |
| |
| |
| } |