com.reandroid.arsc.chunk.xml.ResXmlStartElement Maven / Gradle / Ivy
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Android binary resources read/write library
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/*
* Copyright (C) 2022 github.com/REAndroid
*
* 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 com.reandroid.arsc.chunk.xml;
import com.reandroid.arsc.array.ResXmlAttributeArray;
import com.reandroid.arsc.chunk.ChunkType;
import com.reandroid.arsc.item.ShortItem;
import com.reandroid.utils.StringsUtil;
import java.util.Iterator;
public class ResXmlStartElement extends BaseXmlChunk {
private final ShortItem mAttributeStart;
private final ShortItem mAttributeUnitSize;
private final ShortItem mAttributeCount;
private final ShortItem mIdAttributePosition;
private final ShortItem mClassAttributePosition;
private final ShortItem mStyleAttributePosition;
private final ResXmlAttributeArray mAttributeArray;
private ResXmlEndElement mResXmlEndElement;
public ResXmlStartElement() {
super(ChunkType.XML_START_ELEMENT, 7);
mAttributeStart = new ShortItem(ATTRIBUTES_DEFAULT_START);
mAttributeUnitSize = new ShortItem(ATTRIBUTES_UNIT_SIZE);
mAttributeCount = new ShortItem();
mIdAttributePosition = new ShortItem();
mClassAttributePosition = new ShortItem();
mStyleAttributePosition = new ShortItem();
mAttributeArray = new ResXmlAttributeArray(getHeaderBlock(),
mAttributeStart,
mAttributeCount,
mAttributeUnitSize);
addChild(mAttributeStart);
addChild(mAttributeUnitSize);
addChild(mAttributeCount);
addChild(mIdAttributePosition);
addChild(mClassAttributePosition);
addChild(mStyleAttributePosition);
addChild(mAttributeArray);
}
public int removeUndefinedAttributes(){
return getResXmlAttributeArray().removeUndefinedAttributes();
}
public ResXmlAttribute getIdAttribute(){
return getResXmlAttributeArray().get(mIdAttributePosition.unsignedInt()-1);
}
public ResXmlAttribute getClassAttribute(){
return getResXmlAttributeArray().get(mClassAttributePosition.unsignedInt()-1);
}
public ResXmlAttribute getStyleAttribute(){
return getResXmlAttributeArray().get(mStyleAttributePosition.unsignedInt()-1);
}
void setAttributesUnitSize(int size){
mAttributeArray.setAttributesUnitSize(size);
}
public ResXmlAttribute newAttribute(){
ResXmlAttributeArray attributeArray = getResXmlAttributeArray();
return attributeArray.createNext();
}
@Override
void linkStringReferences(){
super.linkStringReferences();
ResXmlEndElement end = getResXmlEndElement();
if(end != null){
end.linkStringReferences();
}
linkNamespace();
}
@Override
void onRemoved(){
super.onRemoved();
unlinkNamespace();
ResXmlEndElement end = getResXmlEndElement();
if(end != null){
end.onRemoved();
}
Iterator iterator = iterator();
while (iterator.hasNext()){
iterator.next().onRemoved();
}
}
@Override
protected void onPreRefresh(){
sortAttributes();
}
void unlinkNamespace(){
ResXmlStartNamespace namespace = getResXmlStartNamespace();
if(namespace != null){
namespace.removeElementReference(this);
}
}
void linkNamespace(){
ResXmlStartNamespace namespace = getResXmlStartNamespace();
if(namespace != null){
namespace.addElementReference(this);
}
}
private void sortAttributes(){
ResXmlAttributeArray array = getResXmlAttributeArray();
ResXmlAttribute idAttribute=array.get(mIdAttributePosition.get()-1);
ResXmlAttribute classAttribute=array.get(mClassAttributePosition.get()-1);
ResXmlAttribute styleAttribute=array.get(mStyleAttributePosition.get()-1);
array.sortAttributes();
if(idAttribute!=null){
mIdAttributePosition.set(idAttribute.getIndex() + 1);
}
if(classAttribute!=null){
mClassAttributePosition.set(classAttribute.getIndex() + 1);
// In case obfuscation
if(!ATTRIBUTE_NAME_CLASS.equals(classAttribute.getName())){
classAttribute.setName(ATTRIBUTE_NAME_CLASS, 0);
}
}
if(styleAttribute != null){
mStyleAttributePosition.set(styleAttribute.getIndex() + 1);
// In case obfuscation
if(!ATTRIBUTE_NAME_STYLE.equals(styleAttribute.getName())){
styleAttribute.setName(ATTRIBUTE_NAME_STYLE, 0);
}
}
}
void calculatePositions(){
ResXmlAttribute idAttribute=getAttribute(ATTRIBUTE_RESOURCE_ID_id);
ResXmlAttribute classAttribute=getNoIdAttribute(ATTRIBUTE_NAME_CLASS);
ResXmlAttribute styleAttribute=getNoIdAttribute(ATTRIBUTE_NAME_STYLE);
if(idAttribute != null){
mIdAttributePosition.set(idAttribute.getIndex() + 1);
}
if(classAttribute != null){
mClassAttributePosition.set(classAttribute.getIndex() + 1);
}
if(styleAttribute != null){
mStyleAttributePosition.set(styleAttribute.getIndex() + 1);
}
}
public ResXmlAttribute getAttribute(int resourceId){
Iterator iterator = iterator();
while (iterator.hasNext()){
ResXmlAttribute attribute = iterator.next();
if(resourceId == attribute.getNameId()){
return attribute;
}
}
return null;
}
private ResXmlAttribute getNoIdAttribute(String name){
Iterator iterator = iterator();
while (iterator.hasNext()){
ResXmlAttribute attribute = iterator.next();
if(attribute.getNameId()!=0){
continue;
}
if(name.equals(attribute.getName())){
return attribute;
}
}
return null;
}
public ResXmlAttribute getAttribute(String uri, String name){
if(name==null){
return null;
}
Iterator iterator = iterator();
while (iterator.hasNext()){
ResXmlAttribute attribute = iterator.next();
if(attribute.equalsName(name)){
if(uri != null){
if(uri.equals(attribute.getUri())){
return attribute;
}
continue;
}
return attribute;
}
}
return null;
}
// Searches attribute with resource id = 0
public ResXmlAttribute searchAttributeByName(String name){
if(name == null){
return null;
}
Iterator iterator = getResXmlAttributeArray().iterator();
ResXmlAttribute withIdAttribute = null;
while (iterator.hasNext()){
ResXmlAttribute attribute = iterator.next();
if(attribute.equalsName(name)){
if(attribute.getNameId() != 0){
withIdAttribute = attribute;
continue;
}
return attribute;
}
}
return withIdAttribute;
}
public ResXmlAttribute searchAttributeByResourceId(int resourceId){
if(resourceId == 0){
return null;
}
Iterator iterator = iterator();
while (iterator.hasNext()){
ResXmlAttribute attribute = iterator.next();
if(resourceId == attribute.getNameId()){
return attribute;
}
}
return null;
}
public String getTagName(){
return getTagName(true);
}
public String getTagName(boolean includePrefix){
String name = getName();
if(includePrefix){
String prefix = getPrefix();
if(prefix != null){
name = prefix + ":" + name;
}
}
return name;
}
public String getName(boolean includePrefix){
String name = super.getName();
if(includePrefix){
String prefix = getPrefix();
if(prefix != null){
name = prefix + ":" + name;
}
}
return name;
}
public void setName(String name){
if(name == null){
setStringReference(-1);
}else {
setString(name);
}
ResXmlEndElement endElement = getResXmlEndElement();
if(endElement != null){
endElement.setString(name);
}
}
public Iterator iterator(){
return getResXmlAttributeArray().iterator();
}
public ResXmlAttributeArray getResXmlAttributeArray(){
return mAttributeArray;
}
public String getUri(){
ResXmlStartNamespace startNamespace = getResXmlStartNamespace();
if(startNamespace != null){
return startNamespace.getUri();
}
return null;
}
public String getPrefix(){
ResXmlStartNamespace startNamespace = getResXmlStartNamespace();
if(startNamespace != null){
return startNamespace.getPrefix();
}
return null;
}
public void setTagNamespace(String uri, String prefix){
unlinkNamespace();
if(uri == null || prefix == null){
setNamespaceReference(-1);
return;
}
ResXmlElement parentElement = getParentResXmlElement();
if(parentElement == null){
return;
}
ResXmlNamespace ns = parentElement.getOrCreateNamespace(uri, prefix);
setNamespaceReference(ns.getUriReference());
linkNamespace();
}
ResXmlStartNamespace getResXmlStartNamespace(){
int uriRef = getNamespaceReference();
if(uriRef < 0){
return null;
}
ResXmlElement parentElement = getParentResXmlElement();
if(parentElement != null){
return parentElement.getStartNamespaceByUriRef(uriRef);
}
return null;
}
public void setResXmlEndElement(ResXmlEndElement element){
mResXmlEndElement=element;
}
public ResXmlEndElement getResXmlEndElement(){
return mResXmlEndElement;
}
@Override
protected void onChunkRefreshed() {
refreshAttributeStart();
refreshAttributeCount();
}
private void refreshAttributeStart(){
int start = countUpTo(mAttributeArray);
start = start - getHeaderBlock().getHeaderSize();
mAttributeStart.set(start);
}
private void refreshAttributeCount(){
int count = mAttributeArray.size();
mAttributeCount.set(count);
}
@Override
public void setLineNumber(int lineNumber){
super.setLineNumber(lineNumber);
ResXmlEndElement endElement = getResXmlEndElement();
if(endElement != null){
endElement.setLineNumber(lineNumber);
}
}
@Override
public String toString(){
String tag = getTagName();
if(tag == null){
return super.toString();
}
return tag + " " + StringsUtil.join(iterator(), ' ');
}
private static final short ATTRIBUTES_UNIT_SIZE=20;
private static final short ATTRIBUTES_DEFAULT_START=20;
/*
* Find another way to mark an attribute is class, device actually relies on
* value of mClassAttributePosition */
private static final String ATTRIBUTE_NAME_CLASS="class";
/*
* Find another way to mark an attribute is style, device actually relies on
* value of mStyleAttributePosition */
private static final String ATTRIBUTE_NAME_STYLE="style";
/*
* Resource id value of attribute 'android:id'
* instead of relying on hardcoded value, we should find another way to
* mark an attribute is 'id' */
private static final int ATTRIBUTE_RESOURCE_ID_id =0x010100d0;
}
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