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package org.robolectric.shadows;
import static android.os.Build.VERSION_CODES.Q;
import static android.os.Build.VERSION_CODES.R;
import static android.os.Build.VERSION_CODES.S;
import android.content.res.AssetManager;
import android.graphics.fonts.Font;
import android.graphics.fonts.FontStyle;
import androidx.annotation.RequiresApi;
import com.google.common.base.Preconditions;
import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.HashMap;
import java.util.Map;
import org.robolectric.annotation.Implementation;
import org.robolectric.annotation.Implements;
import org.robolectric.annotation.Resetter;
import org.robolectric.res.android.ApkAssetsCookie;
import org.robolectric.res.android.Asset;
import org.robolectric.res.android.Asset.AccessMode;
import org.robolectric.res.android.CppAssetManager2;
import org.robolectric.res.android.Registries;
/** Shadow for {@link android.graphics.fonts.Font.Builder} */
@Implements(value = Font.Builder.class, minSdk = Q)
@RequiresApi(api = Q)
public class ShadowFontBuilder {
private static final Map<Long, FontInternal> resettableByteBuffers = new HashMap<>();
@Resetter
public static void reset() {
for (Map.Entry<Long, FontInternal> entry : resettableByteBuffers.entrySet()) {
FontInternal fontInternal = entry.getValue();
if (fontInternal == null || fontInternal.buffer == null) {
continue;
}
ByteBuffer buffer = fontInternal.buffer;
buffer.rewind();
buffer.clear();
}
resettableByteBuffers.clear();
}
static ByteBuffer getBuffer(long ptr) {
FontInternal fontInternal = resettableByteBuffers.get(ptr);
if (fontInternal == null) {
return ByteBuffer.allocate(0);
}
return fontInternal.buffer;
}
static int getPackedStyle(long ptr) {
FontInternal fontInternal = resettableByteBuffers.get(ptr);
if (fontInternal == null) {
return FontStyle.FONT_WEIGHT_NORMAL;
}
return pack(fontInternal.weight, fontInternal.italic);
}
private static int pack(int weight, boolean italic) {
// See android.graphics.fonts.FontUtils#pack
return weight | (italic ? 0x10000 : 0);
}
// transliterated from frameworks/base/core/jni/android/graphics/fonts/Font.cpp
@Implementation(maxSdk = Q)
protected static long nGetNativeAsset(
AssetManager assetMgr, String path, boolean isAsset, int cookie) {
// NPE_CHECK_RETURN_ZERO(env, assetMgr);
Preconditions.checkNotNull(assetMgr);
// NPE_CHECK_RETURN_ZERO(env, path);
Preconditions.checkNotNull(path);
// Guarded<AssetManager2>* mgr = AssetManagerForJavaObject(env, assetMgr);
CppAssetManager2 mgr = ShadowArscAssetManager10.AssetManagerForJavaObject(assetMgr);
//if (mgr == nullptr) {
if (mgr == null) {
return 0;
}
// ScopedUtfChars str(env, path);
// if (str.c_str() == nullptr) {
// return 0;
// }
// std::unique_ptr<Asset> asset;
Asset asset;
{
// ScopedLock<AssetManager2> locked_mgr(*mgr);
if (isAsset) {
// asset = locked_mgr->Open(str.c_str(), Asset::ACCESS_BUFFER);
asset = mgr.Open(path, AccessMode.ACCESS_BUFFER);
} else if (cookie > 0) {
// Valid java cookies are 1-based, but AssetManager cookies are 0-based.
// asset = locked_mgr->OpenNonAsset(str.c_str(), static_cast<ApkAssetsCookie>(cookie - 1), Asset::ACCESS_BUFFER);
asset = mgr.OpenNonAsset(path, ApkAssetsCookie.forInt(cookie - 1), AccessMode.ACCESS_BUFFER);
} else {
// asset = locked_mgr->OpenNonAsset(str.c_str(), Asset::ACCESS_BUFFER);
asset = mgr.OpenNonAsset(path, AccessMode.ACCESS_BUFFER);
}
}
// return reinterpret_cast<jlong>(asset.release());
return Registries.NATIVE_ASSET_REGISTRY.register(asset);
}
@Implementation(maxSdk = Q)
protected static ByteBuffer nGetAssetBuffer(long nativeAsset) {
// Asset* asset = toAsset(nativeAsset);
Asset asset = Registries.NATIVE_ASSET_REGISTRY.getNativeObject(nativeAsset);
//return env->NewDirectByteBuffer(const_cast<void*>(asset->getBuffer(false)), asset->getLength());
return ByteBuffer.wrap(asset.getBuffer(false));
}
@Implementation(maxSdk = Q)
protected static long nGetReleaseNativeAssetFunc() {
// return reinterpret_cast<jlong>(&releaseAsset);
// TODO: implement
return 0;
}
/** Re-implement to avoid call to DirectByteBuffer#array, which is not supported on JDK */
@Implementation(minSdk = R)
protected static ByteBuffer createBuffer(
AssetManager am, String path, boolean isAsset, int cookie) throws IOException {
Preconditions.checkNotNull(am, "assetManager can not be null");
Preconditions.checkNotNull(path, "path can not be null");
try (InputStream assetStream =
isAsset
? am.open(path, AssetManager.ACCESS_BUFFER)
: am.openNonAsset(cookie, path, AssetManager.ACCESS_BUFFER)) {
int capacity = assetStream.available();
ByteBuffer buffer = ByteBuffer.allocate(capacity);
buffer.order(ByteOrder.nativeOrder());
assetStream.read(buffer.array(), buffer.arrayOffset(), assetStream.available());
if (assetStream.read() != -1) {
throw new IOException("Unable to access full contents of " + path);
}
return buffer;
}
}
@Implementation(minSdk = S)
protected static long nBuild(
long builderPtr,
ByteBuffer buffer,
String filePath,
String localeList,
int weight,
boolean italic,
int ttcIndex) {
Preconditions.checkNotNull(buffer);
Preconditions.checkNotNull(filePath);
Preconditions.checkNotNull(localeList);
buffer.rewind();
// If users use one ttf file for different style, for example one ttf for bold and normal,
// the buffer's hasCode is the same. We can use packed style as addition to calculate identical
// pointer address for native object.
long ptr = ((long) buffer.hashCode()) * 32 + pack(weight, italic);
FontInternal fontInternal = new FontInternal();
fontInternal.buffer = buffer;
fontInternal.filePath = filePath;
fontInternal.localeList = localeList;
fontInternal.weight = weight;
fontInternal.italic = italic;
fontInternal.ttcIndex = ttcIndex;
resettableByteBuffers.put(ptr, fontInternal);
return ptr;
}
private static class FontInternal {
ByteBuffer buffer;
String filePath;
String localeList;
int weight;
boolean italic;
int ttcIndex;
}
}
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