/**
*
*/
package org.erlide.ui.internal.search;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
public class ErlangSearchTableContentProvider extends ErlangSearchContentProvider {
private ErlangSearchResult fResult;
ErlangSearchTableContentProvider(final ErlangSearchResultPage page) {
super(page);
}
@Override
public void dispose() {
// nothing to do
}
@Override
public void inputChanged(final Viewer viewer, final Object oldInput,
final Object newInput) {
if (newInput instanceof ErlangSearchResult) {
fResult = (ErlangSearchResult) newInput;
}
}
@Override
public void elementsChanged(final Object[] updatedElements) {
final TableViewer viewer = getViewer();
final int elementLimit = getElementLimit();
final boolean tableLimited = elementLimit != -1;
for (int i = 0; i < updatedElements.length; i++) {
if (fResult.getMatchCount(updatedElements[i]) > 0) {
if (viewer.testFindItem(updatedElements[i]) != null) {
viewer.update(updatedElements[i], null);
} else {
if (!tableLimited || viewer.getTable().getItemCount() < elementLimit) {
viewer.add(updatedElements[i]);
}
}
} else {
viewer.remove(updatedElements[i]);
}
}
}
@Override
public Object[] getElements(final Object inputElement) {
if (inputElement instanceof ErlangSearchResult) {
final ErlangSearchResult esr = (ErlangSearchResult) inputElement;
final int elementLimit = getElementLimit();
final Object[] elements = esr.getElements();
if (elementLimit != -1 && elements.length > elementLimit) {
final Object[] shownElements = new Object[elementLimit];
System.arraycopy(elements, 0, shownElements, 0, elementLimit);
return shownElements;
}
return elements;
}
return EMPTY_ARR;
}
@Override
public void clear() {
getViewer().refresh();
}
private int getElementLimit() {
return getPage().getElementLimit().intValue();
}
private TableViewer getViewer() {
return (TableViewer) getPage().getViewer();
}
}