ContributionItemsManager.java

package com.topsun.posclient.application;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.eclipse.jface.action.IContributionItem;
import org.eclipse.swt.widgets.Composite;

public abstract class ContributionItemsManager {
	protected Composite rootComposite;
	protected List<IContributionItem> items;
	
	
	
	public ContributionItemsManager(Composite rootComposite, String categroy) {
		this.rootComposite = rootComposite;
		IContributionItemService itemService = TopSunApplicationActivator.getContributionItemService();
		items = new ArrayList<IContributionItem>(Arrays.asList(itemService.getItems(categroy)));
	}

	public IContributionItem[] getItems() {
		return items.toArray(new IContributionItem[items.size()]);
	}

	public IContributionItem getItem(String itemId) {
		int idx = getIndex(itemId);
		return idx == -1 ? null : items.get(idx);
	}

	public void removeItem(String itemId) {
		int idx = getIndex(itemId);
		if (idx != -1) {
			IContributionItem item = items.remove(idx);
			if (item != null) {
				item.dispose();
			}
		}
	}

	public void addItem(IContributionItem item) {
		items.add(item);
	}

	public abstract void refresh();

	private int getIndex(String itemId) {
		for (int i = 0; i < items.size(); i++) {
			if (itemId.equals(items.get(i).getId())) {
				return i;
			}
		}
		return -1;
	}
}