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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
*
* 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 com.android.ide.eclipse.adt.internal.editors.layout.properties;
import com.android.annotations.NonNull;
import com.google.common.base.Objects;
import org.eclipse.wb.internal.core.model.property.Property;
import java.util.Arrays;
/**
* Property holding multiple instances of the same {@link XmlProperty} (but
* bound to difference objects. This is used when multiple objects are selected
* in the layout editor and the common properties are shown; editing a value
* will (via {@link #setValue(Object)}) set it on all selected objects.
* <p>
* Similar to
* org.eclipse.wb.internal.core.model.property.GenericPropertyComposite
*/
class XmlPropertyComposite extends XmlProperty {
private static final Object NO_VALUE = new Object();
private final XmlProperty[] mProperties;
public XmlPropertyComposite(XmlProperty primary, XmlProperty[] properties) {
super(
primary.getEditor(),
primary.getFactory(),
primary.getNode(),
primary.getDescriptor());
mProperties = properties;
}
@Override
@NonNull
public String getTitle() {
return mProperties[0].getTitle();
}
@Override
public int hashCode() {
return mProperties.length;
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj instanceof XmlPropertyComposite) {
XmlPropertyComposite property = (XmlPropertyComposite) obj;
return Arrays.equals(mProperties, property.mProperties);
}
return false;
}
@Override
public boolean isModified() throws Exception {
for (Property property : mProperties) {
if (property.isModified()) {
return true;
}
}
return false;
}
@Override
public Object getValue() throws Exception {
Object value = NO_VALUE;
for (Property property : mProperties) {
Object propertyValue = property.getValue();
if (value == NO_VALUE) {
value = propertyValue;
} else if (!Objects.equal(value, propertyValue)) {
return UNKNOWN_VALUE;
}
}
return value;
}
@Override
public void setValue(final Object value) throws Exception {
// TBD: Wrap in ExecutionUtils.run?
for (Property property : mProperties) {
property.setValue(value);
}
}
@NonNull
public static XmlPropertyComposite create(Property... properties) {
// Cast from Property into XmlProperty
XmlProperty[] xmlProperties = new XmlProperty[properties.length];
for (int i = 0; i < properties.length; i++) {
Property property = properties[i];
xmlProperties[i] = (XmlProperty) property;
}
XmlPropertyComposite composite = new XmlPropertyComposite(xmlProperties[0], xmlProperties);
composite.setCategory(xmlProperties[0].getCategory());
return composite;
}
}
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