TreeExplorerItem.java

/*
 * Copyright 2017 Red Hat, Inc. and/or its affiliates.
 *
 * 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.kie.workbench.common.stunner.client.widgets.explorer.tree;

import java.util.logging.Logger;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.enterprise.context.Dependent;
import javax.inject.Inject;

import com.ait.lienzo.client.core.shape.Group;
import com.google.gwt.user.client.ui.IsWidget;
import com.google.gwt.user.client.ui.Widget;
import org.kie.workbench.common.stunner.core.client.api.ShapeManager;
import org.kie.workbench.common.stunner.core.client.shape.factory.ShapeFactory;
import org.kie.workbench.common.stunner.core.client.shape.view.glyph.Glyph;
import org.kie.workbench.common.stunner.core.graph.Element;
import org.kie.workbench.common.stunner.core.graph.util.GraphUtils;
import org.kie.workbench.common.stunner.core.util.DefinitionUtils;
import org.uberfire.client.mvp.UberView;

@Dependent
public class TreeExplorerItem implements IsWidget {

    private static Logger LOGGER = Logger.getLogger(TreeExplorerItem.class.getName());

    public interface View extends UberView<TreeExplorerItem> {

        View setUUID(String uuid);

        View setName(String name);

        View setGlyph(Glyph<Group> glyph);
    }

    ShapeManager shapeManager;
    GraphUtils graphUtils;
    DefinitionUtils definitionUtils;
    View view;
    Glyph glyph;

    @Inject
    public TreeExplorerItem(final ShapeManager shapeManager,
                            final GraphUtils graphUtils,
                            final DefinitionUtils definitionUtils,
                            final View view) {
        this.shapeManager = shapeManager;
        this.graphUtils = graphUtils;
        this.definitionUtils = definitionUtils;
        this.view = view;
    }

    @PostConstruct
    public void init() {
        view.init(this);
    }

    @PreDestroy
    public void destroy() {
        glyph.destroy();
    }

    @Override
    public Widget asWidget() {
        return view.asWidget();
    }

    @SuppressWarnings("unchecked")
    public void show(final String shapeSetId,
                     final Element<org.kie.workbench.common.stunner.core.graph.content.view.View> element) {
        final Object definition = element.getContent().getDefinition();
        final String defId = definitionUtils.getDefinitionManager().adapters().forDefinition().getId(definition);
        final ShapeFactory factory = shapeManager.getShapeSet(shapeSetId).getShapeFactory();
        this.glyph = factory.glyph(defId,
                                   25,
                                   25);
        view.setUUID(element.getUUID())
                .setName(getItemText(element))
                .setGlyph(glyph);
    }

    private String getItemText(final Element<org.kie.workbench.common.stunner.core.graph.content.view.View> item) {
        final String name = definitionUtils.getName(item.getContent().getDefinition());
        return (name != null ? name : "- No name -");
    }
}