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/*******************************************************************************
* Copyright (c) 2010, 2019 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.help.ui.internal.search;
import org.eclipse.core.runtime.Platform;
import org.eclipse.help.internal.HelpPlugin;
import org.eclipse.help.internal.base.BaseHelpSystem;
import org.eclipse.help.ui.internal.Messages;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
public class HelpCriteriaContentProvider implements ITreeContentProvider {
public static final String UNCATEGORIZED = "Uncategorized"; //$NON-NLS-1$
public static class CriterionName{
public CriterionName(String id, Object parent) {
this.id = id;
this.parent = parent;
}
private String id;
private Object parent;
public String getId() {
return id;
}
public String getName() {
return HelpPlugin.getCriteriaManager().getCriterionDisplayName(id, Platform.getNL());
}
public Object getParent() {
return parent;
}
@Override
public boolean equals(Object arg0) {
if (arg0 instanceof CriterionName) {
CriterionName other = (CriterionName) arg0;
return other.id.equals(this.id);
}
return false;
}
@Override
public int hashCode() {
return id.hashCode();
}
}
public static class CriterionValue{
public CriterionValue(String id, Object parent) {
this.id = id;
this.parent = parent;
}
private String id;
private Object parent;
public String getId() {
return id;
}
public String getName() {
if (id.equals(UNCATEGORIZED)) {
return Messages.UncategorizedCriteria;
}
CriterionName parentCriterion = (CriterionName) parent;
return HelpPlugin.getCriteriaManager().getCriterionValueDisplayName(parentCriterion.id, id, Platform.getNL());
}
public Object getParent() {
return parent;
}
@Override
public boolean equals(Object arg0) {
if (arg0 instanceof CriterionValue) {
CriterionValue other = (CriterionValue) arg0;
return other.id.equals(this.id) && parent.equals(other.parent);
}
return false;
}
@Override
public int hashCode() {
return id.hashCode() + parent.hashCode();
}
}
/**
* Constructor for HelpWorkingSetTreeContentProvider.
*/
public HelpCriteriaContentProvider() {
super();
}
@Override
public Object[] getChildren(Object parentElement) {
if (parentElement instanceof String[]) {
String[] names = (String[]) parentElement;
CriterionName criterionNames[] = new CriterionName[names.length];
for (int i = 0; i < names.length; i++) {
criterionNames[i] = new CriterionName(names[i], parentElement);
}
return criterionNames;
} else if (parentElement instanceof CriterionName) {
CriterionName parentCriterion = (CriterionName) parentElement;
String[] values = BaseHelpSystem.getWorkingSetManager().getCriterionValueIds(parentCriterion.getId());
CriterionValue[] criterionValues = new CriterionValue[values.length];
for (int i = 0; i < values.length; i++) {
criterionValues[i] = new CriterionValue(values[i], parentElement);
}
return criterionValues;
} else {
return new Object[0];
}
}
@Override
public Object getParent(Object element) {
if (element instanceof CriterionName) {
return ((CriterionName) element).getParent();
} else if (element instanceof CriterionValue) {
return ((CriterionValue) element).getParent();
} else
return null;
}
@Override
public boolean hasChildren(Object element) {
return getChildren(element).length > 0;
}
@Override
public Object[] getElements(Object inputElement) {
return getChildren(inputElement);
}
@Override
public void dispose() {
}
@Override
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
}
}
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