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/*
* Copyright (C) 2008 The Android Open Source Project
*
* 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 android.util;
import com.android.ide.common.rendering.api.RenderResources;
import com.android.ide.common.rendering.api.ResourceValue;
import com.android.layoutlib.bridge.Bridge;
import com.android.layoutlib.bridge.BridgeConstants;
import com.android.layoutlib.bridge.android.BridgeContext;
import com.android.resources.ResourceType;
import org.xmlpull.v1.XmlPullParser;
import android.util.AttributeSet;
import android.util.XmlPullAttributes;
/**
* A correct implementation of the {@link AttributeSet} interface on top of a XmlPullParser
*/
public class BridgeXmlPullAttributes extends XmlPullAttributes {
private final BridgeContext mContext;
private final boolean mPlatformFile;
public BridgeXmlPullAttributes(XmlPullParser parser, BridgeContext context,
boolean platformFile) {
super(parser);
mContext = context;
mPlatformFile = platformFile;
}
/*
* (non-Javadoc)
* @see android.util.XmlPullAttributes#getAttributeNameResource(int)
*
* This methods must return com.android.internal.R.attr.<name> matching
* the name of the attribute.
* It returns 0 if it doesn't find anything.
*/
@Override
public int getAttributeNameResource(int index) {
// get the attribute name.
String name = getAttributeName(index);
// get the attribute namespace
String ns = mParser.getAttributeNamespace(index);
if (BridgeConstants.NS_RESOURCES.equals(ns)) {
Integer v = Bridge.getResourceId(ResourceType.ATTR, name);
if (v != null) {
return v.intValue();
}
return 0;
}
// this is not an attribute in the android namespace, we query the customviewloader, if
// the namespaces match.
if (mContext.getProjectCallback().getNamespace().equals(ns)) {
Integer v = mContext.getProjectCallback().getResourceId(ResourceType.ATTR, name);
if (v != null) {
return v.intValue();
}
}
return 0;
}
/*
* (non-Javadoc)
* @see android.util.XmlPullAttributes#getAttributeResourceValue(int, int)
*/
@Override
public int getAttributeResourceValue(int index, int defaultValue) {
String value = getAttributeValue(index);
return resolveResourceValue(value, defaultValue);
}
/*
* (non-Javadoc)
* @see android.util.XmlPullAttributes#getAttributeResourceValue(java.lang.String, java.lang.String, int)
*/
@Override
public int getAttributeResourceValue(String namespace, String attribute, int defaultValue) {
String value = getAttributeValue(namespace, attribute);
return resolveResourceValue(value, defaultValue);
}
private int resolveResourceValue(String value, int defaultValue) {
// now look for this particular value
RenderResources resources = mContext.getRenderResources();
ResourceValue resource = resources.resolveResValue(
resources.findResValue(value, mPlatformFile));
if (resource != null) {
Integer id = null;
if (mPlatformFile || resource.isFramework()) {
id = Bridge.getResourceId(resource.getResourceType(), resource.getName());
} else {
id = mContext.getProjectCallback().getResourceId(
resource.getResourceType(), resource.getName());
}
if (id != null) {
return id;
}
}
return defaultValue;
}
}
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