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/*******************************************************************************
* Copyright (c) 2000, 2016 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.views;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.help.ui.internal.HelpUIPlugin;
import org.eclipse.help.ui.internal.IHelpUIConstants;
import org.eclipse.jface.preference.IPreferenceNode;
import org.eclipse.jface.preference.IPreferencePage;
import org.eclipse.jface.preference.PreferenceManager;
import org.eclipse.jface.preference.PreferenceNode;
public class ScopePreferenceManager extends PreferenceManager implements IHelpUIConstants {
private ScopeSet set;
class SubpagePreferenceNode extends PreferenceNode {
private IConfigurationElement config;
public SubpagePreferenceNode(String id, String label,
IConfigurationElement config) {
super(id, label, null, null);
this.config = config;
}
@Override
public void createPage() {
try {
Object obj = config.createExecutableExtension(IHelpUIConstants.ATT_CLASS);
IPreferencePage page = (IPreferencePage)obj;
setPage(page);
page.setTitle(getLabelText());
}
catch (CoreException e) {
HelpUIPlugin.logError("Unable to create executable extension", e); //$NON-NLS-1$
}
}
}
class EnginePreferenceNode extends PreferenceNode {
private EngineDescriptor desc;
public EnginePreferenceNode(EngineDescriptor desc) {
super(desc.getId(), desc.getLabel(), desc.getImageDescriptor(), null);
this.desc = desc;
}
public EngineDescriptor getDescriptor() {
return desc;
}
@Override
public void createPage() {
IPreferencePage page = desc.createRootPage(set.getName());
setPage(page);
page.setTitle(desc.getLabel());
page.setImageDescriptor(desc.getImageDescriptor());
page.setDescription(desc.getDescription());
}
}
/**
*
*/
public ScopePreferenceManager(EngineDescriptorManager descManager, ScopeSet set) {
this.set = set;
load(descManager.getDescriptors());
}
private void load(EngineDescriptor [] descriptors) {
for (int i=0; i<descriptors.length; i++) {
EngineDescriptor desc = descriptors[i];
addNode(desc);
IConfigurationElement [] pages = desc.getPages();
for (int j=0; j<pages.length; j++) {
String category = pages[i].getAttribute(ATT_CATEGORY);
addNode(category, pages[i].getAttribute(ATT_ID),
pages[i].getAttribute(ATT_LABEL),
pages[i]);
}
}
}
public IPreferenceNode addNode(EngineDescriptor desc) {
PreferenceNode node = new EnginePreferenceNode(desc);
addToRoot(node);
return node;
}
private IPreferenceNode addNode(String category, String id, String name, IConfigurationElement config) {
IPreferenceNode parent = find(category);
PreferenceNode node = new SubpagePreferenceNode(id, name, config);
if (parent!=null)
parent.add(node);
return node;
}
}
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