| /*=============================================================================# |
| # Copyright (c) 2013, 2021 Stephan Wahlbrink and others. |
| # |
| # This program and the accompanying materials are made available under the |
| # terms of the Eclipse Public License 2.0 which is available at |
| # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 |
| # which is available at https://www.apache.org/licenses/LICENSE-2.0. |
| # |
| # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 |
| # |
| # Contributors: |
| # Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation |
| #=============================================================================*/ |
| |
| package org.eclipse.statet.ecommons.workbench.search.ui; |
| |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.StructuredViewer; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.search.ui.text.Match; |
| |
| |
| public abstract class TextSearchResultContentProvider<E, M extends Match, V extends StructuredViewer> |
| implements IStructuredContentProvider { |
| |
| |
| protected static final Object[] NO_ELEMENTS= new Object[0]; |
| |
| |
| private final ExtTextSearchResultPage page; |
| |
| private ExtTextSearchResult<E, M> input; |
| private final V viewer; |
| |
| protected boolean active; |
| |
| |
| public TextSearchResultContentProvider(final ExtTextSearchResultPage page, final V viewer) { |
| this.page= page; |
| this.viewer= viewer; |
| } |
| |
| |
| @Override |
| public void dispose() { |
| } |
| |
| |
| @Override |
| public void inputChanged(final Viewer viewer, final Object oldInput, final Object newInput) { |
| assert (this.viewer == viewer); |
| this.input= (ExtTextSearchResult<E, M>) newInput; |
| reset(); |
| } |
| |
| protected void reset() { |
| this.active= false; |
| } |
| |
| |
| protected ExtTextSearchResultPage getPage() { |
| return this.page; |
| } |
| |
| protected V getViewer() { |
| return this.viewer; |
| } |
| |
| protected ExtTextSearchResult<E, M> getInput() { |
| return this.input; |
| } |
| |
| protected int getElementLimit() { |
| final Integer limit= getPage().getElementLimit(); |
| if (limit == null || limit.intValue() < 0) { |
| return Integer.MAX_VALUE; |
| } |
| return limit; |
| } |
| |
| |
| public abstract void elementsChanged(final Object[] elements); |
| |
| public void clear() { |
| this.viewer.refresh(); |
| } |
| |
| } |