/*
* Copyright 2016 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.core.client.canvas.command;
import org.kie.workbench.common.stunner.core.client.canvas.AbstractCanvasHandler;
import org.kie.workbench.common.stunner.core.client.command.CanvasViolation;
import org.kie.workbench.common.stunner.core.client.shape.MutationContext;
import org.kie.workbench.common.stunner.core.client.util.ShapeUtils;
import org.kie.workbench.common.stunner.core.command.CommandResult;
import org.kie.workbench.common.stunner.core.graph.Edge;
import org.kie.workbench.common.stunner.core.graph.Node;
/**
* Adds a new connector shape into the canvas and updates its connections.
*/
public class AddCanvasConnectorCommand extends AbstractCanvasCommand {
private final Edge candidate;
private final String shapeSetId;
public AddCanvasConnectorCommand(final Edge candidate,
final String shapeSetId) {
this.candidate = candidate;
this.shapeSetId = shapeSetId;
}
@Override
@SuppressWarnings("unchecked")
public CommandResult<CanvasViolation> execute(final AbstractCanvasHandler context) {
context.register(shapeSetId,
candidate);
context.applyElementMutation(candidate,
MutationContext.STATIC);
ShapeUtils.applyConnections(candidate,
context,
MutationContext.STATIC);
final Node source = candidate.getSourceNode();
if (null != source) {
context.notifyCanvasElementUpdated(source);
}
return buildResult();
}
@Override
public CommandResult<CanvasViolation> undo(final AbstractCanvasHandler context) {
return new DeleteCanvasConnectorCommand(candidate).execute(context);
}
public Edge getCandidate() {
return candidate;
}
public String getShapeSetId() {
return shapeSetId;
}
}