com.siteview.mde.internal.ui.search.AbstractSearchResultPage.java Source code

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Here is the source code for com.siteview.mde.internal.ui.search.AbstractSearchResultPage.java

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/*******************************************************************************
 *  Copyright (c) 2005, 2008 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 com.siteview.mde.internal.ui.search;

import org.eclipse.jface.viewers.*;
import org.eclipse.search.ui.text.AbstractTextSearchResult;
import org.eclipse.search.ui.text.AbstractTextSearchViewPage;

public abstract class AbstractSearchResultPage extends AbstractTextSearchViewPage {

    class ContentProvider implements IStructuredContentProvider {

        private TableViewer fTableViewer;
        private AbstractTextSearchResult fSearchResult;

        /* (non-Javadoc)
         * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
         */
        public Object[] getElements(Object inputElement) {
            if (inputElement instanceof AbstractTextSearchResult)
                return ((AbstractTextSearchResult) inputElement).getElements();
            return new Object[0];
        }

        /* (non-Javadoc)
         * @see org.eclipse.jface.viewers.IContentProvider#dispose()
         */
        public void dispose() {
        }

        /* (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) {
            fTableViewer = (TableViewer) viewer;
            fSearchResult = (AbstractTextSearchResult) newInput;
        }

        public void clear() {
            fTableViewer.refresh();
        }

        public void elementsChanged(Object[] updatedElements) {
            for (int i = 0; i < updatedElements.length; i++) {
                if (fSearchResult.getMatchCount(updatedElements[i]) > 0) {
                    if (fTableViewer.testFindItem(updatedElements[i]) != null)
                        fTableViewer.refresh(updatedElements[i]);
                    else
                        fTableViewer.add(updatedElements[i]);
                } else {
                    fTableViewer.remove(updatedElements[i]);
                }
            }
        }
    }

    private ContentProvider fContentProvider;

    public AbstractSearchResultPage() {
        super(AbstractTextSearchViewPage.FLAG_LAYOUT_FLAT);
    }

    /* (non-Javadoc)
     * @see org.eclipse.search.ui.text.AbstractTextSearchViewPage#elementsChanged(java.lang.Object[])
     */
    protected void elementsChanged(Object[] objects) {
        if (fContentProvider != null && fContentProvider.fSearchResult != null)
            fContentProvider.elementsChanged(objects);
    }

    /* (non-Javadoc)
     * @see org.eclipse.search.ui.text.AbstractTextSearchViewPage#clear()
     */
    protected void clear() {
        if (fContentProvider != null)
            fContentProvider.clear();
    }

    /* (non-Javadoc)
     * @see org.eclipse.search.ui.text.AbstractTextSearchViewPage#configureTreeViewer(org.eclipse.jface.viewers.TreeViewer)
     */
    protected void configureTreeViewer(TreeViewer viewer) {
        throw new IllegalStateException("Doesn't support tree mode."); //$NON-NLS-1$
    }

    /* (non-Javadoc)
     * @see org.eclipse.search.ui.text.AbstractTextSearchViewPage#configureTableViewer(org.eclipse.jface.viewers.TableViewer)
     */
    protected void configureTableViewer(TableViewer viewer) {
        viewer.setComparator(createViewerComparator());
        viewer.setLabelProvider(createLabelProvider());
        fContentProvider = new ContentProvider();
        viewer.setContentProvider(fContentProvider);
    }

    protected abstract ILabelProvider createLabelProvider();

    protected abstract ViewerComparator createViewerComparator();

}