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package org.openide.util;

import java.awt.*;
import java.awt.event.*;

import java.beans.*;

import java.io.*;

import javax.swing.*;


/** ActionMap that is composed from all Components up to the ExplorerManager.Provider
*
* @author   Jaroslav Tulach
*/
final class UtilitiesCompositeActionMap extends ActionMap {
    private Component component;

    public UtilitiesCompositeActionMap(Component c) {
        this.component = c;
    }

    public int size() {
        return keys().length;
    }

    public Action get(Object key) {
        Component c = component;

        for (;;) {
            if (c instanceof JComponent) {
                javax.swing.ActionMap m = ((JComponent) c).getActionMap();

                if (m != null) {
                    Action a = m.get(key);

                    if (a != null) {
                        return a;
                    }
                }
            }

            if (c instanceof Lookup.Provider) {
                break;
            }

            c = c.getParent();

            if (c == null) {
                break;
            }
        }

        return null;
    }

    public Object[] allKeys() {
        return keys(true);
    }

    public Object[] keys() {
        return keys(false);
    }

    private Object[] keys(boolean all) {
        java.util.HashSet