name.martingeisse.wicket.experimental.hotkey.HotkeyBehavior.java Source code

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Here is the source code for name.martingeisse.wicket.experimental.hotkey.HotkeyBehavior.java

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/**
 * Copyright (c) 2010 Martin Geisse
 *
 * This file is distributed under the terms of the MIT license.
 */

package name.martingeisse.wicket.experimental.hotkey;

import org.apache.wicket.Component;
import org.apache.wicket.behavior.Behavior;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.JavaScriptHeaderItem;
import org.apache.wicket.request.resource.JavaScriptResourceReference;

/**
 * Adds hotkey functionality to a component.
 * 
 * If more than one component tries to react to the same hotkey,
 * then that key will be disabled for all of them.
 */
public class HotkeyBehavior extends Behavior {

    /* (non-Javadoc)
     * @see org.apache.wicket.behavior.Behavior#renderHead(org.apache.wicket.Component, org.apache.wicket.markup.head.IHeaderResponse)
     */
    @Override
    public void renderHead(Component component, IHeaderResponse response) {
        super.renderHead(component, response);
        response.render(JavaScriptHeaderItem
                .forReference(new JavaScriptResourceReference(HotkeyBehavior.class, "jquery.hotkeys.js")));

        // store common data to detect duplicates:
        // use behavior
        // Component.getMetaData
        // Component.getString
    }

}