org.qa82.analyzer.ui.OnEnterKeyHandler.java Source code

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Here is the source code for org.qa82.analyzer.ui.OnEnterKeyHandler.java

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/*******************************************************************************
* Copyright (c) 2014 Michael Gebhart (michael.gebhart@qa82.org).
* 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:
* Michael Gebhart - initial idea and concept
* 
*******************************************************************************/

package org.qa82.analyzer.ui;

import com.vaadin.event.FieldEvents;
import com.vaadin.event.ShortcutAction;
import com.vaadin.event.ShortcutListener;
import com.vaadin.ui.TextField;

public abstract class OnEnterKeyHandler {

    final ShortcutListener enterShortCut = new ShortcutListener("EnterOnTextAreaShorcut",
            ShortcutAction.KeyCode.ENTER, null) {
        /**
        * 
        */
        private static final long serialVersionUID = 1L;

        @Override
        public void handleAction(Object sender, Object target) {
            onEnterKeyPressed();
        }
    };

    public void installOn(final TextField component) {
        component.addFocusListener(new FieldEvents.FocusListener() {

            /**
            * 
            */
            private static final long serialVersionUID = 1L;

            @Override
            public void focus(FieldEvents.FocusEvent event) {
                component.addShortcutListener(enterShortCut);
            }

        });

        component.addBlurListener(new FieldEvents.BlurListener() {

            /**
            * 
            */
            private static final long serialVersionUID = 1L;

            @Override
            public void blur(FieldEvents.BlurEvent event) {
                component.removeShortcutListener(enterShortCut);
            }

        });
    }

    public abstract void onEnterKeyPressed();

}