org.semanticsoft.vaaclipse.widgets.TwoStateToolbarButton.java Source code

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Here is the source code for org.semanticsoft.vaaclipse.widgets.TwoStateToolbarButton.java

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/*******************************************************************************
 * Copyright (c) 2012 Rushan R. Gilmullin and others.
 * 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:
 *     Rushan R. Gilmullin - initial API and implementation
 *******************************************************************************/

package org.semanticsoft.vaaclipse.widgets;

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

import com.vaadin.ui.Button;
import com.vaadin.ui.Component;

/**
 * @author rushan
 *
 */
public class TwoStateToolbarButton extends Button {
    private String primaryStyle;
    private String selectedStyle;

    private boolean switchOn = false;
    private boolean switchStateByUserClickEnabled = true;
    private List<ClickListener> userListeners = new ArrayList<ClickListener>();

    public TwoStateToolbarButton() {
        setState(false);

        setPrimaryStyle("vaaclipsebutton");
        setSelectedStyle("pushed");

        super.addListener(new ClickListener() {

            public void buttonClick(ClickEvent event) {
                if (switchStateByUserClickEnabled) {
                    setState(!switchOn);

                    for (ClickListener l : userListeners) {
                        l.buttonClick(event);
                    }
                }

                //change focus
                Component parent = event.getButton().getParent();
                while (parent != null) {
                    if (parent instanceof Component.Focusable) {
                        ((Component.Focusable) parent).focus();
                        break;
                    } else {
                        parent = parent.getParent();
                    }
                }
            }
        });
    }

    public boolean getState() {
        return switchOn;
    }

    public void setState(boolean switchOn) {
        if (switchOn) {
            addStyleName(selectedStyle);
        } else {
            removeStyleName(selectedStyle);
        }

        this.switchOn = switchOn;
    }

    @Override
    public void addListener(ClickListener listener) {
        this.userListeners.add(listener);
    }

    public boolean isSwitchStateByUserClickEnabled() {
        return switchStateByUserClickEnabled;
    }

    public void setSwitchStateByUserClickEnabled(boolean switchStateByUserClickEnabled) {
        this.switchStateByUserClickEnabled = switchStateByUserClickEnabled;
    }

    public String getPrimaryStyle() {
        return primaryStyle;
    }

    public void setPrimaryStyle(String primaryStyle) {
        removePrimaryStyle();
        this.primaryStyle = primaryStyle;
        this.addStyleName(this.primaryStyle);
    }

    public void removePrimaryStyle() {
        if (this.primaryStyle != null)
            this.removeStyleName(this.primaryStyle);
    }

    public String getSelectedStyle() {
        return selectedStyle;
    }

    public void setSelectedStyle(String selectedStyle) {
        if (this.switchOn)
            this.removeStyleName(this.selectedStyle);
        this.selectedStyle = selectedStyle;
        if (this.switchOn)
            this.addStyleName(this.selectedStyle);
    }
}