tapestry/tapestry-contrib/src/java/org/apache/tapestry/contrib/inspector/ViewTabs.java

// Copyright 2004, 2005 The Apache Software Foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package org.apache.tapestry.contrib.inspector;

import org.apache.tapestry.BaseComponent;
import org.apache.tapestry.IAsset;

/**
 * Component of the {@link Inspector} page used to select the view.
 * 
 * @author Howard Lewis Ship
 */

public abstract class ViewTabs extends BaseComponent
{
    private static String[] _views =
    { View.SPECIFICATION, View.TEMPLATE, View.PROPERTIES, View.ENGINE };

    public String[] getViews()
    {
        return _views;
    }

    public abstract void setView(String value);

    public abstract String getView();

    private IAsset getImageForView(boolean focus)
    {
        Inspector inspector = (Inspector) getPage();

        String view = getView();

        boolean selected = view.equals(inspector.getView());

        StringBuffer buffer = new StringBuffer(view);

        if (selected)
            buffer.append("_selected");

        if (focus)
            buffer.append("_focus");

        String key = buffer.toString();
        
        return (IAsset) getAssets().get(key);
    }

    public IAsset getViewImage()
    {
        return getImageForView(false);
    }

    public IAsset getFocusImage()
    {
        return getImageForView(true);
    }

    public IAsset getBannerImage()
    {
        Inspector inspector = (Inspector) getPage();
        String selectedView = inspector.getView();
        
        String key = selectedView + "_banner";
        
        return (IAsset) getAssets().get(key);
    }

    public void selectTab(String view)
    {
        Inspector inspector = (Inspector) getPage();
        inspector.setView(view);
    }
}