1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.util; 18 19 import com.android.ide.common.rendering.api.RenderResources; 20 import com.android.ide.common.rendering.api.ResourceValue; 21 import com.android.layoutlib.bridge.Bridge; 22 import com.android.layoutlib.bridge.BridgeConstants; 23 import com.android.layoutlib.bridge.android.BridgeContext; 24 import com.android.resources.ResourceType; 25 26 import org.xmlpull.v1.XmlPullParser; 27 28 import android.util.AttributeSet; 29 import android.util.XmlPullAttributes; 30 31 /** 32 * A correct implementation of the {@link AttributeSet} interface on top of a XmlPullParser 33 */ 34 public class BridgeXmlPullAttributes extends XmlPullAttributes { 35 36 private final BridgeContext mContext; 37 private final boolean mPlatformFile; 38 BridgeXmlPullAttributes(XmlPullParser parser, BridgeContext context, boolean platformFile)39 public BridgeXmlPullAttributes(XmlPullParser parser, BridgeContext context, 40 boolean platformFile) { 41 super(parser); 42 mContext = context; 43 mPlatformFile = platformFile; 44 } 45 46 /* 47 * (non-Javadoc) 48 * @see android.util.XmlPullAttributes#getAttributeNameResource(int) 49 * 50 * This methods must return com.android.internal.R.attr.<name> matching 51 * the name of the attribute. 52 * It returns 0 if it doesn't find anything. 53 */ 54 @Override getAttributeNameResource(int index)55 public int getAttributeNameResource(int index) { 56 // get the attribute name. 57 String name = getAttributeName(index); 58 59 // get the attribute namespace 60 String ns = mParser.getAttributeNamespace(index); 61 62 if (BridgeConstants.NS_RESOURCES.equals(ns)) { 63 Integer v = Bridge.getResourceId(ResourceType.ATTR, name); 64 if (v != null) { 65 return v.intValue(); 66 } 67 68 return 0; 69 } 70 71 // this is not an attribute in the android namespace, we query the customviewloader, if 72 // the namespaces match. 73 if (mContext.getProjectCallback().getNamespace().equals(ns)) { 74 Integer v = mContext.getProjectCallback().getResourceId(ResourceType.ATTR, name); 75 if (v != null) { 76 return v.intValue(); 77 } 78 } 79 80 return 0; 81 } 82 83 /* 84 * (non-Javadoc) 85 * @see android.util.XmlPullAttributes#getAttributeResourceValue(int, int) 86 */ 87 @Override getAttributeResourceValue(int index, int defaultValue)88 public int getAttributeResourceValue(int index, int defaultValue) { 89 String value = getAttributeValue(index); 90 91 return resolveResourceValue(value, defaultValue); 92 } 93 94 /* 95 * (non-Javadoc) 96 * @see android.util.XmlPullAttributes#getAttributeResourceValue(java.lang.String, java.lang.String, int) 97 */ 98 @Override getAttributeResourceValue(String namespace, String attribute, int defaultValue)99 public int getAttributeResourceValue(String namespace, String attribute, int defaultValue) { 100 String value = getAttributeValue(namespace, attribute); 101 102 return resolveResourceValue(value, defaultValue); 103 } 104 resolveResourceValue(String value, int defaultValue)105 private int resolveResourceValue(String value, int defaultValue) { 106 // now look for this particular value 107 RenderResources resources = mContext.getRenderResources(); 108 ResourceValue resource = resources.resolveResValue( 109 resources.findResValue(value, mPlatformFile)); 110 111 if (resource != null) { 112 Integer id = null; 113 if (mPlatformFile || resource.isFramework()) { 114 id = Bridge.getResourceId(resource.getResourceType(), resource.getName()); 115 } else { 116 id = mContext.getProjectCallback().getResourceId( 117 resource.getResourceType(), resource.getName()); 118 } 119 120 if (id != null) { 121 return id; 122 } 123 } 124 125 return defaultValue; 126 } 127 128 } 129