Java JTextComponent Action getAction(JTextComponent component, String actionName)

Description

Search the given text component's list of actions for an action with the given name.

License

BSD License

Declaration

public static Action getAction(JTextComponent component, String actionName) 

Method Source Code

//package com.java2s;
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PLT Utilities BSD License
    
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        Rice University
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import java.util.Map;
import java.util.HashMap;

import javax.swing.*;
import javax.swing.text.*;

public class Main {
    /**
     * Search the given text component's list of actions for an action with the given name.
     * Returns {@code null} if no such action is found.  See {@link DefaultEditorKit} for a list of
     * action name constants.
     */
    public static Action getAction(JTextComponent component, String actionName) {
        for (Action a : component.getActions()) {
            if (actionName.equals(a.getValue(Action.NAME))) {
                return a;
            }
        }
        return null;
    }

    /**
     * Create a map view of {@code component.getActions()}, where the keys are the action
     * names.  See {@link DefaultEditorKit} for a list of action name constants.
     */
    public static Map<String, Action> getActions(JTextComponent component) {
        Map<String, Action> result = new HashMap<String, Action>();
        for (Action a : component.getActions()) {
            // Documentation for Action.NAME asserts that it will always be a String
            result.put((String) a.getValue(Action.NAME), a);
        }
        return result;
    }
}

Related

1. getAction(JTextComponent target, Class aClass)
2. setHistoryActions(JTextComponent textComponent)