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/*
* Copyright (C) 2014 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 com.android.layoutlib.bridge.intensive.setup;
import com.android.SdkConstants;
import com.android.ide.common.rendering.api.ActionBarCallback;
import com.android.ide.common.rendering.api.AdapterBinding;
import com.android.ide.common.rendering.api.ILayoutPullParser;
import com.android.ide.common.rendering.api.LayoutlibCallback;
import com.android.ide.common.rendering.api.ResourceReference;
import com.android.ide.common.rendering.api.ResourceValue;
import com.android.ide.common.rendering.api.SessionParams.Key;
import com.android.layoutlib.bridge.android.RenderParamsFlags;
import com.android.resources.ResourceType;
import com.android.utils.ILogger;
import org.kxml2.io.KXmlParser;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import android.annotation.NonNull;
import android.annotation.Nullable;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.HashMap;
import java.util.Map;
import com.google.common.io.ByteStreams;
import static com.android.ide.common.rendering.api.ResourceNamespace.RES_AUTO;
public class LayoutLibTestCallback extends LayoutlibCallback {
private static final String PACKAGE_NAME = "com.android.layoutlib.test.myapplication";
private final Map<Integer, ResourceReference> mProjectResources = new HashMap<>();
private final Map<ResourceReference, Integer> mResources = new HashMap<>();
private final ILogger mLog;
private final ActionBarCallback mActionBarCallback = new ActionBarCallback();
private final ClassLoader mModuleClassLoader;
private String mAdaptiveIconMaskPath;
private boolean mSetUseShadow = true;
private boolean mHighShadowQuality = true;
public LayoutLibTestCallback(ILogger logger, ClassLoader classLoader) {
mLog = logger;
mModuleClassLoader = classLoader;
}
public void initResources() throws ClassNotFoundException {
Class<?> rClass = mModuleClassLoader.loadClass(PACKAGE_NAME + ".R");
Class<?>[] nestedClasses = rClass.getDeclaredClasses();
for (Class<?> resClass : nestedClasses) {
final ResourceType resType = ResourceType.fromClassName(resClass.getSimpleName());
if (resType != null) {
for (Field field : resClass.getDeclaredFields()) {
final int modifiers = field.getModifiers();
if (Modifier.isStatic(modifiers)) { // May not be final in library projects
final Class<?> type = field.getType();
try {
if (type == int.class) {
final Integer value = (Integer) field.get(null);
ResourceReference reference =
new ResourceReference(RES_AUTO, resType, field.getName());
mProjectResources.put(value, reference);
mResources.put(reference, value);
} else if (!(type.isArray() && type.getComponentType() == int.class)) {
mLog.error(null, "Unknown field type in R class: %1$s", type);
}
} catch (IllegalAccessException e) {
mLog.error(e, "Malformed R class: %1$s", PACKAGE_NAME + ".R");
}
}
}
}
}
}
@Override
public Object loadView(@NonNull String name, @NonNull Class[] constructorSignature, Object[] constructorArgs)
throws Exception {
Class<?> viewClass = mModuleClassLoader.loadClass(name);
Constructor<?> viewConstructor = viewClass.getConstructor(constructorSignature);
viewConstructor.setAccessible(true);
return viewConstructor.newInstance(constructorArgs);
}
@Override
public ResourceReference resolveResourceId(int id) {
return mProjectResources.get(id);
}
@Override
public int getOrGenerateResourceId(@NonNull ResourceReference resource) {
Integer id = mResources.get(resource);
return id != null ? id : 0;
}
@Override
public ILayoutPullParser getParser(@NonNull ResourceValue layoutResource) {
try {
return LayoutPullParser.createFromFile(new File(layoutResource.getValue()));
} catch (FileNotFoundException e) {
return null;
}
}
@Override
public Object getAdapterItemValue(ResourceReference adapterView, Object adapterCookie,
ResourceReference itemRef, int fullPosition, int positionPerType,
int fullParentPosition, int parentPositionPerType, ResourceReference viewRef,
ViewAttribute viewAttribute, Object defaultValue) {
return null;
}
@Override
public AdapterBinding getAdapterBinding(ResourceReference adapterViewRef, Object adapterCookie,
Object viewObject) {
return null;
}
@Override
public ActionBarCallback getActionBarCallback() {
return mActionBarCallback;
}
@Override
@Nullable
public XmlPullParser createXmlParserForPsiFile(@NonNull String fileName) {
return createXmlParserForFile(fileName);
}
@Override
@Nullable
public XmlPullParser createXmlParserForFile(@NonNull String fileName) {
try (FileInputStream fileStream = new FileInputStream(fileName)) {
// Read data fully to memory to be able to close the file stream.
ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
ByteStreams.copy(fileStream, byteOutputStream);
KXmlParser parser = new KXmlParser();
parser.setInput(new ByteArrayInputStream(byteOutputStream.toByteArray()), null);
parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
return parser;
} catch (IOException | XmlPullParserException e) {
return null;
}
}
@Override
@NonNull
public XmlPullParser createXmlParser() {
return new KXmlParser();
}
@Override
@SuppressWarnings("unchecked") // The Key<T> API is based on unchecked casts.
public <T> T getFlag(Key<T> key) {
if (key.equals(RenderParamsFlags.FLAG_KEY_APPLICATION_PACKAGE)) {
return (T) PACKAGE_NAME;
}
if (key.equals(RenderParamsFlags.FLAG_KEY_ADAPTIVE_ICON_MASK_PATH)) {
return (T) mAdaptiveIconMaskPath;
}
return null;
}
@Override
public Class<?> findClass(String name) throws ClassNotFoundException {
return mModuleClassLoader.loadClass(name);
}
public void setAdaptiveIconMaskPath(String adaptiveIconMaskPath) {
mAdaptiveIconMaskPath = adaptiveIconMaskPath;
}
}
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