org.eclipse.wb.internal.rcp.databinding.ui.contentproviders.InputElementUiContentProvider.java Source code

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Here is the source code for org.eclipse.wb.internal.rcp.databinding.ui.contentproviders.InputElementUiContentProvider.java

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/*******************************************************************************
 * Copyright (c) 2011 Google, Inc.
 * 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:
 *    Google, Inc. - initial API and implementation
 *******************************************************************************/
package org.eclipse.wb.internal.rcp.databinding.ui.contentproviders;

import com.google.common.collect.Lists;

import org.eclipse.wb.internal.core.databinding.ui.editor.contentproviders.ChooseClassAndPropertiesConfiguration;
import org.eclipse.wb.internal.core.databinding.ui.editor.contentproviders.PropertyAdapter;
import org.eclipse.wb.internal.core.databinding.utils.CoreUtils;
import org.eclipse.wb.internal.rcp.databinding.model.ObservableInfo;
import org.eclipse.wb.internal.rcp.databinding.model.beans.observables.CollectionObservableInfo;
import org.eclipse.wb.internal.rcp.databinding.model.beans.observables.DetailBeanObservableInfo;
import org.eclipse.wb.internal.rcp.databinding.model.beans.observables.MapsBeanObservableInfo;
import org.eclipse.wb.internal.rcp.databinding.model.widgets.input.AbstractViewerInputBindingInfo;
import org.eclipse.wb.internal.rcp.databinding.model.widgets.input.ViewerInputBindingInfo;
import org.eclipse.wb.internal.rcp.databinding.model.widgets.observables.CheckedElementsObservableInfo;

import org.apache.commons.lang.StringUtils;

import java.util.List;

/**
 * Content provider for edit (viewer input, content and label providers)
 * {@link ViewerInputBindingInfo}.
 * 
 * @author lobas_av
 * @coverage bindings.rcp.ui
 */
public final class InputElementUiContentProvider extends ChooseClassAndTreePropertiesUiContentProvider {
    private final ViewerInputBindingInfo m_viewerBinding;

    ////////////////////////////////////////////////////////////////////////////
    //
    // Constructor
    //
    ////////////////////////////////////////////////////////////////////////////
    public InputElementUiContentProvider(ChooseClassAndPropertiesConfiguration configuration,
            ViewerInputBindingInfo viewerBinding) {
        super(configuration);
        m_viewerBinding = viewerBinding;
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // Update
    //
    ////////////////////////////////////////////////////////////////////////////
    public void updateFromObject() throws Exception {
        // prepare input element type
        Class<?> elementType = m_viewerBinding.getElementType();
        if (elementType == null) {
            calculateFinish();
        } else {
            // prepare initial properties
            MapsBeanObservableInfo mapsObservable = m_viewerBinding.getLabelProvider().getMapsObservable();
            String[] properties = mapsObservable.getProperties();
            if (properties == null) {
                setClassName(CoreUtils.getClassName(elementType));
            } else {
                List<String> checkedProperties = Lists.newArrayList();
                for (int i = 0; i < properties.length; i++) {
                    checkedProperties.add("\"" + properties[i] + "\"");
                }
                setClassNameAndProperties(elementType, null, checkedProperties);
            }
        }
    }

    @Override
    protected void saveToObject(Class<?> choosenClass, List<PropertyAdapter> choosenProperties) throws Exception {
        // sets label provider element type
        MapsBeanObservableInfo mapsObservable = m_viewerBinding.getLabelProvider().getMapsObservable();
        mapsObservable.setElementType(choosenClass);
        // sets label provider element properties
        String[] properties = new String[choosenProperties.size()];
        for (int i = 0; i < properties.length; i++) {
            ObservePropertyAdapter adapter = (ObservePropertyAdapter) choosenProperties.get(i);
            properties[i] = StringUtils.remove(adapter.getProperty().getReference(), '"');
        }
        mapsObservable.setProperties(properties);
        // set input element type
        setElementTypeToInput(m_viewerBinding, choosenClass);
    }

    public static void setElementTypeToInput(AbstractViewerInputBindingInfo viewerBinding, Class<?> choosenClass) {
        ObservableInfo observable = viewerBinding.getInputObservable();
        if (observable instanceof DetailBeanObservableInfo) {
            DetailBeanObservableInfo inputObservable = (DetailBeanObservableInfo) observable;
            inputObservable.setDetailPropertyType(choosenClass);
        } else if (observable instanceof CheckedElementsObservableInfo) {
            CheckedElementsObservableInfo inputObservable = (CheckedElementsObservableInfo) observable;
            inputObservable.setElementType(choosenClass);
        } else if (observable instanceof CollectionObservableInfo) {
            CollectionObservableInfo inputObservable = (CollectionObservableInfo) observable;
            inputObservable.setElementType(choosenClass);
        }
    }
}