001// Copyright 2004, 2005 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry.contrib.inspector;
016
017import org.apache.tapestry.BaseComponent;
018import org.apache.tapestry.IAsset;
019import org.apache.tapestry.IRequestCycle;
020
021/**
022 * Component of the {@link Inspector} page used to select the view.
023 * 
024 * @author Howard Lewis Ship
025 */
026
027public abstract class ViewTabs extends BaseComponent
028{
029    private static String[] _views =
030    { View.SPECIFICATION, View.TEMPLATE, View.PROPERTIES, View.ENGINE };
031
032    public String[] getViews()
033    {
034        return _views;
035    }
036
037    public abstract void setView(String value);
038
039    public abstract String getView();
040
041    private IAsset getImageForView(boolean focus)
042    {
043        Inspector inspector = (Inspector) getPage();
044
045        String view = getView();
046
047        boolean selected = view.equals(inspector.getView());
048
049        StringBuffer buffer = new StringBuffer(view);
050
051        if (selected)
052            buffer.append("_selected");
053
054        if (focus)
055            buffer.append("_focus");
056
057        String key = buffer.toString();
058
059        return (IAsset) getAssets().get(key);
060    }
061
062    public IAsset getViewImage()
063    {
064        return getImageForView(false);
065    }
066
067    public IAsset getFocusImage()
068    {
069        return getImageForView(true);
070    }
071
072    public IAsset getBannerImage()
073    {
074        Inspector inspector = (Inspector) getPage();
075        String selectedView = inspector.getView();
076        String key = selectedView + "_banner";
077
078        return (IAsset) getAssets().get(key);
079    }
080
081    public void selectTab(IRequestCycle cycle)
082    {
083        Inspector inspector = (Inspector) getPage();
084        inspector.setView(getView());
085    }
086}