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/*******************************************************************************
* Copyright (c) 2016, 2017 Obeo.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.properties.core.internal;
import org.eclipse.eef.common.api.utils.Util;
import org.eclipse.emf.common.util.BasicEList;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EAttribute;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.sirius.ext.base.Option;
import org.eclipse.sirius.ext.emf.edit.EditingDomainServices;
import org.eclipse.sirius.properties.core.api.preferences.SiriusPropertiesCorePreferences;
import org.eclipse.sirius.properties.impl.EditSupportImpl;
/**
* Contains the actual implementation of the EditSupport EOperations.
*
* @author pcdavid
*/
public class EditSupportSpec extends EditSupportImpl {
private static final String JAVA_LANG_STRING = "java.lang.String"; //$NON-NLS-1$
private static final String INT = "int"; //$NON-NLS-1$
private static final String JAVA_LANG_INTEGER = "java.lang.Integer"; //$NON-NLS-1$
private static final String DOUBLE = "double"; //$NON-NLS-1$
private static final String JAVA_LANG_DOUBLE = "java.lang.Double"; //$NON-NLS-1$
private static final String CHAR = "char"; //$NON-NLS-1$
private static final String JAVA_LANG_CHARACTER = "java.lang.Character"; //$NON-NLS-1$
private static final String SHORT = "short"; //$NON-NLS-1$
private static final String JAVA_LANG_SHORT = "java.lang.Short"; //$NON-NLS-1$
private static final String LONG = "long"; //$NON-NLS-1$
private static final String JAVA_LANG_LONG = "java.lang.Long"; //$NON-NLS-1$
private static final String FLOAT = "float"; //$NON-NLS-1$
private static final String JAVA_LANG_FLOAT = "java.lang.Float"; //$NON-NLS-1$
private static final String JAVA_UTIL_DATE = "java.util.Date"; //$NON-NLS-1$
private static final String BOOLEAN = "boolean"; //$NON-NLS-1$
private static final String JAVA_LANG_BOOLEAN = "java.lang.Boolean"; //$NON-NLS-1$
private final EditingDomainServices editServices = new EditingDomainServices();
private final SiriusContext context;
private final Object self;
/**
* Creates an instance configured to work on the specified target element as
* implicit "self" for all operations.
*
* @param ctx
* the context
* @param target
* the target element.
*/
public EditSupportSpec(SiriusContext ctx, Object target) {
this.context = ctx;
this.self = target;
}
/**
* Returns the actual target model element, unwrapping the
* {@link EEFViewCategory} if needed.
*
* @return the actual target model element, or <code>null</code> if self is
* not an {@link EObject}.
*/
private EObject getTargetEObject() {
EObject result = null;
if (self instanceof EObject) {
result = (EObject) self;
}
return result;
}
@Override
public Object getImage() {
EObject target = getTargetEObject();
if (target != null) {
return this.editServices.getLabelProviderImage(target);
} else {
return null;
}
}
@Override
public String getText() {
EObject target = getTargetEObject();
if (target != null) {
return this.editServices.getLabelProviderText(target);
} else {
return String.valueOf(self);
}
}
@Override
public Object getText(EStructuralFeature feature) {
EObject target = getTargetEObject();
if (target != null) {
String result = this.editServices.getPropertyDescriptorDisplayName(target, feature.getName());
if (Util.isBlank(result)) {
result = this.editServices.getLabelProviderText(feature);
}
if (Util.isBlank(result)) {
result = feature.getName();
}
return result;
} else {
return ""; //$NON-NLS-1$
}
}
@Override
public String getTabName() {
EObject target = getTargetEObject();
final String result;
if (target != null) {
Option<EObject> mainSemanticElement = context.getMainSemanticElement();
if (mainSemanticElement.some() && mainSemanticElement.get().equals(target)) {
result = Messages.SiriusToolServices_MainTabLabel;
} else {
result = this.editServices.getLabelProviderText(target);
}
} else {
result = String.valueOf(target);
}
return elide(result, SiriusPropertiesCorePreferences.INSTANCE.getMaxLengthTabName());
}
private String elide(String s, int maxLength) {
final String dots = "..."; //$NON-NLS-1$
if (dots.length() <= maxLength && maxLength < s.length()) {
return s.substring(0, maxLength - dots.length()) + dots;
} else {
return s;
}
}
@Override
public EList<Object> getChoiceOfValues(EStructuralFeature feature) {
BasicEList<Object> result = new BasicEList<Object>();
EObject target = getTargetEObject();
if (target != null) {
result.addAll(this.editServices.getPropertyDescriptorChoiceOfValues(target, feature.getName()));
}
return result;
}
@Override
public boolean isMultiline(EStructuralFeature eStructuralFeature) {
EObject target = getTargetEObject();
if (target != null) {
return this.editServices.isPropertyDescriptorMultiLine(target, eStructuralFeature.getName());
} else {
return false;
}
}
@Override
public String getDescription(EStructuralFeature eStructuralFeature) {
EObject target = getTargetEObject();
if (target != null) {
return this.editServices.getPropertyDescriptorDescription(target, eStructuralFeature.getName());
} else {
return ""; //$NON-NLS-1$
}
}
@Override
public boolean needsTextWidget(EStructuralFeature eStructuralFeature) {
boolean needsTextWidget = false;
needsTextWidget = needsTextWidget || JAVA_LANG_STRING.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsTextWidget = needsTextWidget || INT.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsTextWidget = needsTextWidget || JAVA_LANG_INTEGER.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsTextWidget = needsTextWidget || DOUBLE.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsTextWidget = needsTextWidget || JAVA_LANG_DOUBLE.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsTextWidget = needsTextWidget || CHAR.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsTextWidget = needsTextWidget || JAVA_LANG_CHARACTER.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsTextWidget = needsTextWidget || SHORT.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsTextWidget = needsTextWidget || JAVA_LANG_SHORT.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsTextWidget = needsTextWidget || LONG.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsTextWidget = needsTextWidget || JAVA_LANG_LONG.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsTextWidget = needsTextWidget || FLOAT.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsTextWidget = needsTextWidget || JAVA_LANG_FLOAT.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsTextWidget = needsTextWidget || JAVA_UTIL_DATE.equals(eStructuralFeature.getEType().getInstanceTypeName());
return needsTextWidget && !eStructuralFeature.isMany();
}
@Override
public boolean needsCheckboxWidget(EStructuralFeature eStructuralFeature) {
boolean needsCheckboxWidget = false;
needsCheckboxWidget = needsCheckboxWidget || BOOLEAN.equals(eStructuralFeature.getEType().getInstanceTypeName());
needsCheckboxWidget = needsCheckboxWidget || JAVA_LANG_BOOLEAN.equals(eStructuralFeature.getEType().getInstanceTypeName());
return needsCheckboxWidget && !eStructuralFeature.isMany();
}
@Override
public EList<EStructuralFeature> getEStructuralFeatures() {
EList<EStructuralFeature> visibleFeatures = new BasicEList<>();
for (EStructuralFeature eStructuralFeature : this.getTargetEObject().eClass().getEAllStructuralFeatures()) {
if (!eStructuralFeature.isDerived() && !eStructuralFeature.isTransient() && !(eStructuralFeature instanceof EReference && ((EReference) eStructuralFeature).isContainment())) {
visibleFeatures.add(eStructuralFeature);
}
}
return visibleFeatures;
}
@Override
public Object setValue(EStructuralFeature feature, Object newValue) {
EObject target = getTargetEObject();
if (target != null) {
Object finalValue = newValue;
if (feature instanceof EAttribute && newValue instanceof String) {
finalValue = EcoreUtil.createFromString(((EAttribute) feature).getEAttributeType(), (String) newValue);
}
target.eSet(feature, finalValue);
}
return self;
}
}
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