/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.isis.viewer.dnd.dialog;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.isis.core.commons.ensure.Assert;
import org.apache.isis.core.commons.exceptions.IsisException;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.viewer.dnd.view.Axes;
import org.apache.isis.viewer.dnd.view.Content;
import org.apache.isis.viewer.dnd.view.View;
import org.apache.isis.viewer.dnd.view.ViewFactory;
import org.apache.isis.viewer.dnd.view.action.ActionContent;
import org.apache.isis.viewer.dnd.view.action.ObjectParameter;
import org.apache.isis.viewer.dnd.view.action.ObjectParameterImpl;
import org.apache.isis.viewer.dnd.view.action.ParameterContent;
import org.apache.isis.viewer.dnd.view.action.TextParseableParameter;
import org.apache.isis.viewer.dnd.view.composite.AbstractViewBuilder;
public class ActionFieldBuilder extends AbstractViewBuilder {
private static final Logger LOG = LoggerFactory.getLogger(ActionFieldBuilder.class);
private final ViewFactory subviewDesign;
public ActionFieldBuilder(final ViewFactory subviewDesign) {
this.subviewDesign = subviewDesign;
}
@Override
public void build(final View view, final Axes axes) {
Assert.assertEquals(view.getView(), view);
final ActionContent actionContent = ((ActionContent) view.getContent());
if (view.getSubviews().length == 0) {
initialBuild(view, actionContent);
} else {
updateBuild(view, actionContent);
}
}
private View createFieldView(final View view, final ParameterContent parameter, final int sequence) {
final View fieldView = subviewDesign.createView(parameter, null, sequence);
if (fieldView == null) {
throw new IsisException("All parameters must be shown");
}
return fieldView;
}
private void initialBuild(final View view, final ActionContent actionContent) {
LOG.debug("build new view " + view + " for " + actionContent);
final int noParameters = actionContent.getNoParameters();
View focusOn = null;
for (int f = 0; f < noParameters; f++) {
final ParameterContent parameter = actionContent.getParameterContent(f);
final View fieldView = createFieldView(view, parameter, f);
final View decoratedSubview = decorateSubview(view.getViewAxes(), fieldView);
view.addView(decoratedSubview);
// set focus to first value field
if (focusOn == null && parameter instanceof TextParseableParameter && fieldView.canFocus()) {
focusOn = decoratedSubview;
}
}
if (focusOn != null) {
view.getViewManager().setKeyboardFocus(focusOn);
}
}
private void updateBuild(final View view, final ActionContent actionContent) {
LOG.debug("rebuild view " + view + " for " + actionContent);
final View[] subviews = view.getSubviews();
for (int i = 0; i < subviews.length; i++) {
final View subview = subviews[i];
final Content content = subview.getContent();
final ObjectAdapter subviewsObject = subview.getContent().getAdapter();
final ObjectAdapter invocationsObject = ((ActionContent) view.getContent()).getParameterObject(i);
if (content instanceof ObjectParameter) {
if (subviewsObject != invocationsObject) {
final ObjectParameter parameter = new ObjectParameterImpl((ObjectParameterImpl) content, invocationsObject);
final View fieldView = createFieldView(view, parameter, i);
view.replaceView(subview, decorateSubview(view.getViewAxes(), fieldView));
}
} else {
subview.refresh();
}
}
}
}