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/*******************************************************************************
* Copyright (c) 2009, 2020 QNX Software Systems 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:
* QNX Software Systems - initial API and implementation
* Alexander Fedorov (ArSysOp) - Bug 561993 - Remove dependency to com.ibm.icu from CDT UI
*******************************************************************************/
package org.eclipse.cdt.internal.ui.workingsets;
import java.text.Collator;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import org.eclipse.cdt.ui.CUIPlugin;
import org.eclipse.jface.action.IContributionItem;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkingSet;
import org.eclipse.ui.actions.CompoundContributionItem;
/**
* Common API of dynamic contribution of items to manipulate configurations of a working set.
*
* @author Christian W. Damus (cdamus)
*
* @since 6.0
*/
abstract class AbstractWorkingSetConfigsContribution extends CompoundContributionItem {
private IWorkingSetProxy workingSet;
private Comparator<IWorkingSetConfiguration> configOrdering = new Comparator<>() {
private Collator collator = Collator.getInstance();
@Override
public int compare(IWorkingSetConfiguration o1, IWorkingSetConfiguration o2) {
return collator.compare(o1.getName(), o2.getName());
}
};
/**
* Initializes me without a working set. I figure it out, later. This is only appropriate usage for
* context-menu contribution, where the workbench selection is obvious.
*/
public AbstractWorkingSetConfigsContribution() {
super();
}
/**
* Initializes me with my working set.
*
* @param workingSet
* my working set
*/
AbstractWorkingSetConfigsContribution(IWorkingSetProxy workingSet) {
super();
this.workingSet = workingSet;
}
@Override
protected IContributionItem[] getContributionItems() {
if (getWorkingSet() == null) {
return new IContributionItem[0];
}
// sort the configurations by name
List<IWorkingSetConfiguration> configs = new java.util.ArrayList<>(getWorkingSet().getConfigurations());
Collections.sort(configs, configOrdering);
IContributionItem[] result = new IContributionItem[configs.size()];
int i = 0;
for (IWorkingSetConfiguration next : configs) {
result[i] = createContribution(next, i);
i++;
}
return result;
}
/**
* Creates a contribution item for a specific configuration of my working set.
*
* @param config
* a configuration of my working set
* @param index
* the index of the contribution in the composite
*
* @return the contribution
*/
protected abstract IContributionItem createContribution(IWorkingSetConfiguration config, int index);
/**
* Obtains my working set. It may be lazily determined from the current workbench selection.
*
* @return my working set
*/
protected IWorkingSetProxy getWorkingSet() {
if (workingSet == null) {
ISelection sel = CUIPlugin.getActivePage().getSelection();
if (sel instanceof IStructuredSelection) {
IStructuredSelection ssel = (IStructuredSelection) sel;
if (!ssel.isEmpty()) {
Object first = ssel.getFirstElement();
if (first instanceof IWorkingSet) {
workingSet = WorkingSetConfigurationManager.getDefault()
.getWorkingSet(((IWorkingSet) first).getName());
}
}
}
}
return workingSet;
}
}
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