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Commit 21909896 authored by Jerome Gaillard's avatar Jerome Gaillard Committed by Android (Google) Code Review
Browse files

Merge "Layoutlib native: make list of classes to register configurable."

parents e91d4e17 a6885fd9

core/jni/LayoutlibLoader.cpp

+84 −60
Original line number Diff line number Diff line
@@ -17,7 +17,10 @@ 
#include "jni.h"

#include "core_jni_helpers.h"



#include <sstream>

#include <iostream>

#include <unicode/putil.h>

#include <unordered_map>

#include <vector>



using namespace std;
@@ -72,47 +75,51 @@ struct RegJNIRec { 
    int (*mProc)(JNIEnv*);

};



static const RegJNIRec gRegJNI[] = {

    REG_JNI(register_android_animation_PropertyValuesHolder),

    REG_JNI(register_android_graphics_Bitmap),

    REG_JNI(register_android_graphics_BitmapFactory),

    REG_JNI(register_android_graphics_ByteBufferStreamAdaptor),

    REG_JNI(register_android_graphics_Canvas),

    REG_JNI(register_android_graphics_ColorFilter),

    REG_JNI(register_android_graphics_ColorSpace),

    REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),

    REG_JNI(register_android_graphics_DrawFilter),

    REG_JNI(register_android_graphics_FontFamily),

    REG_JNI(register_android_graphics_Graphics),

    REG_JNI(register_android_graphics_ImageDecoder),

    REG_JNI(register_android_graphics_MaskFilter),

    REG_JNI(register_android_graphics_Matrix),

    REG_JNI(register_android_graphics_NinePatch),

    REG_JNI(register_android_graphics_Paint),

    REG_JNI(register_android_graphics_Path),

    REG_JNI(register_android_graphics_PathEffect),

    REG_JNI(register_android_graphics_PathMeasure),

    REG_JNI(register_android_graphics_Picture),

    REG_JNI(register_android_graphics_Region),

    REG_JNI(register_android_graphics_Shader),

    REG_JNI(register_android_graphics_Typeface),

    REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable),

    REG_JNI(register_android_graphics_drawable_VectorDrawable),

    REG_JNI(register_android_graphics_fonts_Font),

    REG_JNI(register_android_graphics_fonts_FontFamily),

    REG_JNI(register_android_graphics_text_LineBreaker),

    REG_JNI(register_android_graphics_text_MeasuredText),

    REG_JNI(register_android_util_PathParser),

    REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),

    REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),

// Map of all possible class names to register to their corresponding JNI registration function pointer

// The actual list of registered classes will be determined at runtime via the com.android.tools.layoutlib.create.NativeConfig class

static const std::unordered_map<std::string, RegJNIRec>  gRegJNIMap = {

    {"android.animation.PropertyValuesHolder", REG_JNI(register_android_animation_PropertyValuesHolder)},

    {"android.graphics.Bitmap", REG_JNI(register_android_graphics_Bitmap)},

    {"android.graphics.BitmapFactory", REG_JNI(register_android_graphics_BitmapFactory)},

    {"android.graphics.ByteBufferStreamAdaptor", REG_JNI(register_android_graphics_ByteBufferStreamAdaptor)},

    {"android.graphics.Canvas", REG_JNI(register_android_graphics_Canvas)},

    {"android.graphics.ColorFilter", REG_JNI(register_android_graphics_ColorFilter)},

    {"android.graphics.ColorSpace", REG_JNI(register_android_graphics_ColorSpace)},

    {"android.graphics.CreateJavaOutputStreamAdaptor", REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor)},

    {"android.graphics.DrawFilter", REG_JNI(register_android_graphics_DrawFilter)},

    {"android.graphics.FontFamily", REG_JNI(register_android_graphics_FontFamily)},

    {"android.graphics.Graphics", REG_JNI(register_android_graphics_Graphics)},

    {"android.graphics.ImageDecoder", REG_JNI(register_android_graphics_ImageDecoder)},

    {"android.graphics.MaskFilter", REG_JNI(register_android_graphics_MaskFilter)},

    {"android.graphics.Matrix", REG_JNI(register_android_graphics_Matrix)},

    {"android.graphics.NinePatch", REG_JNI(register_android_graphics_NinePatch)},

    {"android.graphics.Paint", REG_JNI(register_android_graphics_Paint)},

    {"android.graphics.Path", REG_JNI(register_android_graphics_Path)},

    {"android.graphics.PathEffect", REG_JNI(register_android_graphics_PathEffect)},

    {"android.graphics.PathMeasure", REG_JNI(register_android_graphics_PathMeasure)},

    {"android.graphics.Picture", REG_JNI(register_android_graphics_Picture)},

    {"android.graphics.Region", REG_JNI(register_android_graphics_Region)},

    {"android.graphics.Shader", REG_JNI(register_android_graphics_Shader)},

    {"android.graphics.Typeface", REG_JNI(register_android_graphics_Typeface)},

    {"android.graphics.drawable.AnimatedVectorDrawable", REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable)},

    {"android.graphics.drawable.VectorDrawable", REG_JNI(register_android_graphics_drawable_VectorDrawable)},

    {"android.graphics.fonts.Font", REG_JNI(register_android_graphics_fonts_Font)},

    {"android.graphics.fonts.FontFamily", REG_JNI(register_android_graphics_fonts_FontFamily)},

    {"android.graphics.text.LineBreaker", REG_JNI(register_android_graphics_text_LineBreaker)},

    {"android.graphics.text.MeasuredText", REG_JNI(register_android_graphics_text_MeasuredText)},

    {"android.util.PathParser", REG_JNI(register_android_util_PathParser)},

    {"com.android.internal.util.VirtualRefBasePtr", REG_JNI(register_com_android_internal_util_VirtualRefBasePtr)},

    {"com.android.internal.view.animation.NativeInterpolatorFactoryHelper", REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper)},

};



// Vector to store the names of classes that need delegates of their native methods

static vector<string> classesToDelegate;



static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) {

    for (size_t i = 0; i < count; i++) {

        if (array[i].mProc(env) < 0) {

static int register_jni_procs(const std::unordered_map<std::string, RegJNIRec>& jniRegMap,

        const vector<string>& classesToRegister, JNIEnv* env) {



    for (const string& className : classesToRegister) {

        if (jniRegMap.at(className).mProc(env) < 0) {

            return -1;

        }

    }
@@ -146,12 +153,10 @@ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 
    }



    jclass clazz = env->FindClass(className);



    return env->RegisterNatives(clazz, gMethods, numMethods);

}



JNIEnv* AndroidRuntime::getJNIEnv()

{

JNIEnv* AndroidRuntime::getJNIEnv() {

    JNIEnv* env;

    if (javaVM->GetEnv((void**) &env, JNI_VERSION_1_6) != JNI_OK)

        return nullptr;
@@ -162,6 +167,25 @@ JavaVM* AndroidRuntime::getJavaVM() { 
    return javaVM;

}



static vector<string> parseCsv(const string& csvString) {

    vector<string>   result;

    istringstream stream(csvString);

    string segment;

    while(getline(stream, segment, ','))

    {

        result.push_back(segment);

    }

    return result;

}



static vector<string> parseCsv(JNIEnv* env, jstring csvJString) {

    const char* charArray = env->GetStringUTFChars(csvJString, 0);

    string csvString(charArray);

    vector<string> result = parseCsv(csvString);

    env->ReleaseStringUTFChars(csvJString, charArray);

    return result;

}



} // namespace android



using namespace android;
@@ -173,32 +197,32 @@ JNIEXPORT jint JNI_OnLoad(JavaVM* vm, void*) { 
        return JNI_ERR;

    }



    // Configuration is stored as java System properties.

    // Get a reference to System.getProperty

    jclass system = FindClassOrDie(env, "java/lang/System");

    jmethodID getPropertyMethod = GetStaticMethodIDOrDie(env, system, "getProperty",

                                                         "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;");



    // Get the names of classes that have to delegate their native methods

    auto delegateNativesToNativesString =

            (jstring) env->CallStaticObjectMethod(system,

                    getPropertyMethod, env->NewStringUTF("delegate_natives_to_natives"),

                    env->NewStringUTF(""));

    classesToDelegate = parseCsv(env, delegateNativesToNativesString);



    jclass createInfo = FindClassOrDie(env, "com/android/tools/layoutlib/create/NativeConfig");

    jfieldID arrayId = GetStaticFieldIDOrDie(env, createInfo,

            "DELEGATE_CLASS_NATIVES_TO_NATIVES", "[Ljava/lang/String;");

    jobjectArray array = (jobjectArray) env->GetStaticObjectField(createInfo, arrayId);

    jsize size = env->GetArrayLength(array);



    for (int i=0; i < size; ++i) {

        jstring string = (jstring) env->GetObjectArrayElement(array, i);

        const char* charArray = env->GetStringUTFChars(string, 0);

        std::string className = std::string(charArray);

        std::replace(className.begin(), className.end(), '.', '/');

        classesToDelegate.push_back(className);

        env->ReleaseStringUTFChars(string, charArray);

    }

    // Get the names of classes that need to register their native methods

    auto nativesClassesJString =

            (jstring) env->CallStaticObjectMethod(system,

                                                  getPropertyMethod, env->NewStringUTF("native_classes"),

                                                  env->NewStringUTF(""));

    vector<string> classesToRegister = parseCsv(env, nativesClassesJString);



    if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {

    if (register_jni_procs(gRegJNIMap, classesToRegister, env) < 0) {

        return JNI_ERR;

    }



    // Set the location of ICU data

    jclass system = FindClassOrDie(env, "java/lang/System");

    jmethodID getPropertyMethod = GetStaticMethodIDOrDie(env, system, "getProperty",

        "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;");

    jstring stringPath = (jstring) (jstring) env->CallStaticObjectMethod(system,

    auto stringPath = (jstring) env->CallStaticObjectMethod(system,

        getPropertyMethod, env->NewStringUTF("icu.dir"),

        env->NewStringUTF(""));

    const char* path = env->GetStringUTFChars(stringPath, 0);