| //------------------------------------------------------------------------------ |
| // Copyright (c) 2005, 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 implementation |
| //------------------------------------------------------------------------------ |
| package org.eclipse.epf.search.ui.internal; |
| |
| import org.eclipse.epf.library.ui.providers.AbstractElementTreeContentProvider; |
| import org.eclipse.jface.viewers.TreeViewer; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| /** |
| * The content provider for the method search result tree viewer. |
| * |
| * @author Kelvin Low |
| * @author Phong Nguyen Le |
| * @author Pierre Padovani |
| * @since 1.0 |
| */ |
| public class SearchResultTreeContentProvider extends AbstractElementTreeContentProvider { |
| |
| private static final Object[] EMPTY_LIST = new Object[0]; |
| |
| private MethodSearchResult searchResult; |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) |
| */ |
| public Object[] getElements(Object inputElement) { |
| if (inputElement instanceof MethodSearchResult) { |
| Object[] elements = ((MethodSearchResult) inputElement) |
| .getElements(); |
| if (elements.length == 0) { |
| return EMPTY_LIST; |
| } |
| getElementMap().clear(); |
| for (int i = 0; i < elements.length; i++) { |
| insert(elements[i], false); |
| } |
| |
| insertUIFolders(inputElement); |
| } |
| return getChildren(inputElement); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object) |
| */ |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| if (newInput != null && newInput instanceof MethodSearchResult) { |
| setTreeViewer((TreeViewer) viewer); |
| searchResult = (MethodSearchResult) newInput; |
| } |
| } |
| |
| /** |
| * @param updatedElements |
| */ |
| public void elementsChanged(Object[] updatedElements) { |
| for (int i = 0; i < updatedElements.length; i++) { |
| if (searchResult.getMatchCount(updatedElements[i]) > 0) { |
| if (getTreeViewer().testFindItem(updatedElements[i]) != null) { |
| insert(updatedElements[i], true); |
| } else { |
| remove(updatedElements[i], true); |
| } |
| } else { |
| getTreeViewer().remove(updatedElements[i]); |
| } |
| } |
| getTreeViewer().refresh(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.epf.library.ui.providers.AbstractElementTreeContentProvider#remove(java.lang.Object, boolean) |
| */ |
| protected void remove(Object element, boolean refreshViewer) { |
| if (hasChildren(element)) { |
| if (refreshViewer) { |
| getTreeViewer().refresh(element); |
| } |
| } else { |
| if (searchResult.getMatchCount(element) == 0) { |
| getElementMap().remove(element); |
| Object parent = getParent(element); |
| if (parent != null) { |
| removeFromSiblings(element, parent); |
| remove(parent, refreshViewer); |
| } else { |
| removeFromSiblings(element, searchResult); |
| if (refreshViewer) { |
| getTreeViewer().refresh(); |
| } |
| } |
| } else { |
| if (refreshViewer) { |
| getTreeViewer().refresh(element); |
| } |
| } |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.epf.library.ui.providers.AbstractElementTreeContentProvider#getContentSource() |
| */ |
| @Override |
| public Object getContentSource() { |
| return searchResult; |
| } |
| |
| } |