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/*******************************************************************************
* Copyright (c) 2012 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.ui.views.handler;
import java.util.Iterator;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.osgi.util.NLS;
import org.eclipse.tcf.te.ui.views.Managers;
import org.eclipse.tcf.te.ui.views.interfaces.ICategory;
import org.eclipse.tcf.te.ui.views.interfaces.categories.ICategorizable;
import org.eclipse.tcf.te.ui.views.internal.categories.AbstractCategoryContributionItem;
import org.eclipse.tcf.te.ui.views.nls.Messages;
/**
* Dynamic menu contribution: Add To <Category>
*/
public class CategoryAddToContributionItem extends AbstractCategoryContributionItem {
/**
* Category action implementation.
*/
protected static class AddToCategoryAction extends AbstractCategoryAction {
/**
* Constructor.
*
* @param item The parent contribution item. Must not be <code>null</code>:
* @param selection The selection. Must not be <code>null</code>.
* @param category The category. Must not be <code>null</code>.
* @param single <code>True</code> if the action is the only item added, <code>false</code> otherwise.
*/
public AddToCategoryAction(AbstractCategoryContributionItem item, ISelection selection, ICategory category, boolean single) {
super(item, selection, category, single);
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.views.internal.categories.AbstractCategoryContributionItem.AbstractCategoryAction#makeSingleText(java.lang.String)
*/
@Override
protected String makeSingleText(String text) {
Assert.isNotNull(text);
return NLS.bind(Messages.AddToCategoryAction_single_text, text);
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.views.internal.categories.AbstractCategoryContributionItem.AbstractCategoryAction#execute(java.lang.Object, org.eclipse.tcf.te.ui.views.interfaces.ICategory)
*/
@Override
protected boolean execute(Object element, ICategory category) {
Assert.isNotNull(element);
Assert.isNotNull(category);
boolean refresh = false;
ICategorizable categorizable = getCategorizable(element);
Assert.isNotNull(categorizable);
if (!Managers.getCategoryManager().belongsTo(category.getId(), categorizable.getId())) {
Managers.getCategoryManager().add(category.getId(), categorizable.getId());
refresh = true;
}
return refresh;
}
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.views.internal.categories.AbstractCategoryContributionItem#createAction(org.eclipse.tcf.te.ui.views.internal.categories.AbstractCategoryContributionItem, org.eclipse.jface.viewers.ISelection, org.eclipse.tcf.te.ui.views.interfaces.ICategory, boolean)
*/
@Override
protected IAction createAction(AbstractCategoryContributionItem item, ISelection selection, ICategory category, boolean single) {
return new AddToCategoryAction(item, selection, category, single);
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.views.internal.categories.AbstractCategoryContributionItem#isValid(org.eclipse.tcf.te.ui.views.interfaces.ICategory, java.lang.Object, org.eclipse.tcf.te.ui.views.interfaces.ICategory)
*/
@Override
protected boolean isValid(ICategory parentCategory, Object element, ICategory category) {
Assert.isNotNull(element);
Assert.isNotNull(category);
// Delegate to the categorizable element
ICategorizable categorizable = getCategorizable(element);
Assert.isNotNull(categorizable);
return categorizable.isValid(ICategorizable.OPERATION.ADD, parentCategory, category);
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.views.internal.categories.AbstractCategoryContributionItem#isEnabled(org.eclipse.jface.viewers.ISelection, org.eclipse.tcf.te.ui.views.interfaces.ICategory)
*/
@Override
protected boolean isEnabled(ISelection selection, ICategory category) {
Assert.isNotNull(selection);
Assert.isNotNull(category);
boolean enabled = false;
if (selection instanceof IStructuredSelection && !selection.isEmpty()) {
enabled = true;
Iterator<?> iterator = ((IStructuredSelection)selection).iterator();
while (iterator.hasNext()) {
Object element = iterator.next();
// Delegate to the categorizable element
ICategorizable categorizable = getCategorizable(element);
Assert.isNotNull(categorizable);
enabled &= categorizable.isEnabled(ICategorizable.OPERATION.ADD, category);
if (!enabled) {
break;
}
}
}
return enabled;
}
}
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