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fune/widget/android/AndroidBridge.cpp

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/* -*- Mode: c++; c-basic-offset: 2; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <android/log.h>
#include <dlfcn.h>
#include <math.h>
#include <GLES2/gl2.h>
#include "mozilla/layers/CompositorBridgeChild.h"
#include "mozilla/layers/CompositorBridgeParent.h"
#include "mozilla/Hal.h"
#include "nsXULAppAPI.h"
#include <prthread.h>
#include "AndroidBridge.h"
#include "AndroidBridgeUtilities.h"
#include "AndroidRect.h"
#include "nsAlertsUtils.h"
#include "nsAppShell.h"
#include "nsOSHelperAppService.h"
#include "nsWindow.h"
#include "mozilla/Preferences.h"
#include "nsThreadUtils.h"
#include "gfxPlatform.h"
#include "gfxContext.h"
#include "mozilla/gfx/2D.h"
#include "gfxUtils.h"
#include "nsPresContext.h"
#include "nsPIDOMWindow.h"
#include "mozilla/ClearOnShutdown.h"
#include "nsPrintfCString.h"
#include "nsContentUtils.h"
#include "EventDispatcher.h"
#include "MediaCodec.h"
#include "SurfaceTexture.h"
#include "GLContextProvider.h"
#include "mozilla/TimeStamp.h"
#include "mozilla/UniquePtr.h"
#include "nsIObserverService.h"
#include "WidgetUtils.h"
#include "mozilla/java/EventDispatcherWrappers.h"
#include "mozilla/java/GeckoAppShellWrappers.h"
#include "mozilla/java/GeckoThreadWrappers.h"
#include "mozilla/java/HardwareCodecCapabilityUtilsWrappers.h"
using namespace mozilla;
using namespace mozilla::gfx;
AndroidBridge* AndroidBridge::sBridge = nullptr;
static jobject sGlobalContext = nullptr;
nsDataHashtable<nsStringHashKey, nsString> AndroidBridge::sStoragePaths;
jmethodID AndroidBridge::GetMethodID(JNIEnv* env, jclass jClass,
const char* methodName,
const char* methodType) {
jmethodID methodID = env->GetMethodID(jClass, methodName, methodType);
if (!methodID) {
ALOG(
">>> FATAL JNI ERROR! GetMethodID(methodName=\"%s\", "
"methodType=\"%s\") failed. Did ProGuard optimize away something it "
"shouldn't have?",
methodName, methodType);
env->ExceptionDescribe();
MOZ_CRASH();
}
return methodID;
}
jmethodID AndroidBridge::GetStaticMethodID(JNIEnv* env, jclass jClass,
const char* methodName,
const char* methodType) {
jmethodID methodID = env->GetStaticMethodID(jClass, methodName, methodType);
if (!methodID) {
ALOG(
">>> FATAL JNI ERROR! GetStaticMethodID(methodName=\"%s\", "
"methodType=\"%s\") failed. Did ProGuard optimize away something it "
"shouldn't have?",
methodName, methodType);
env->ExceptionDescribe();
MOZ_CRASH();
}
return methodID;
}
jfieldID AndroidBridge::GetFieldID(JNIEnv* env, jclass jClass,
const char* fieldName,
const char* fieldType) {
jfieldID fieldID = env->GetFieldID(jClass, fieldName, fieldType);
if (!fieldID) {
ALOG(
">>> FATAL JNI ERROR! GetFieldID(fieldName=\"%s\", "
"fieldType=\"%s\") failed. Did ProGuard optimize away something it "
"shouldn't have?",
fieldName, fieldType);
env->ExceptionDescribe();
MOZ_CRASH();
}
return fieldID;
}
jfieldID AndroidBridge::GetStaticFieldID(JNIEnv* env, jclass jClass,
const char* fieldName,
const char* fieldType) {
jfieldID fieldID = env->GetStaticFieldID(jClass, fieldName, fieldType);
if (!fieldID) {
ALOG(
">>> FATAL JNI ERROR! GetStaticFieldID(fieldName=\"%s\", "
"fieldType=\"%s\") failed. Did ProGuard optimize away something it "
"shouldn't have?",
fieldName, fieldType);
env->ExceptionDescribe();
MOZ_CRASH();
}
return fieldID;
}
void AndroidBridge::ConstructBridge() {
/* NSS hack -- bionic doesn't handle recursive unloads correctly,
* because library finalizer functions are called with the dynamic
* linker lock still held. This results in a deadlock when trying
* to call dlclose() while we're already inside dlclose().
* Conveniently, NSS has an env var that can prevent it from unloading.
*/
putenv(const_cast<char*>("NSS_DISABLE_UNLOAD=1"));
MOZ_ASSERT(!sBridge);
sBridge = new AndroidBridge();
}
void AndroidBridge::DeconstructBridge() {
if (sBridge) {
delete sBridge;
// AndroidBridge destruction requires sBridge to still be valid,
// so we set sBridge to nullptr after deleting it.
sBridge = nullptr;
}
}
AndroidBridge::~AndroidBridge() {}
AndroidBridge::AndroidBridge() {
ALOG_BRIDGE("AndroidBridge::Init");
JNIEnv* const jEnv = jni::GetGeckoThreadEnv();
AutoLocalJNIFrame jniFrame(jEnv);
mMessageQueue = java::GeckoThread::MsgQueue();
auto msgQueueClass = jni::Class::LocalRef::Adopt(
jEnv, jEnv->GetObjectClass(mMessageQueue.Get()));
// mMessageQueueNext must not be null
mMessageQueueNext =
GetMethodID(jEnv, msgQueueClass.Get(), "next", "()Landroid/os/Message;");
// mMessageQueueMessages may be null (e.g. due to proguard optimization)
mMessageQueueMessages = jEnv->GetFieldID(msgQueueClass.Get(), "mMessages",
"Landroid/os/Message;");
AutoJNIClass string(jEnv, "java/lang/String");
jStringClass = string.getGlobalRef();
mAPIVersion = jni::GetAPIVersion();
AutoJNIClass channels(jEnv, "java/nio/channels/Channels");
jChannels = channels.getGlobalRef();
jChannelCreate = channels.getStaticMethod(
"newChannel",
"(Ljava/io/InputStream;)Ljava/nio/channels/ReadableByteChannel;");
AutoJNIClass readableByteChannel(jEnv,
"java/nio/channels/ReadableByteChannel");
jReadableByteChannel = readableByteChannel.getGlobalRef();
jByteBufferRead =
readableByteChannel.getMethod("read", "(Ljava/nio/ByteBuffer;)I");
AutoJNIClass inputStream(jEnv, "java/io/InputStream");
jInputStream = inputStream.getGlobalRef();
jClose = inputStream.getMethod("close", "()V");
jAvailable = inputStream.getMethod("available", "()I");
}
static void getHandlersFromStringArray(
JNIEnv* aJNIEnv, jni::ObjectArray::Param aArr, size_t aLen,
nsIMutableArray* aHandlersArray, nsIHandlerApp** aDefaultApp,
const nsAString& aAction = EmptyString(),
const nsACString& aMimeType = EmptyCString()) {
nsString empty = EmptyString();
auto getNormalizedString = [](jni::Object::Param obj) -> nsString {
nsString out;
if (!obj) {
out.SetIsVoid(true);
} else {
out.Assign(jni::String::Ref::From(obj)->ToString());
}
return out;
};
for (size_t i = 0; i < aLen; i += 4) {
nsString name(getNormalizedString(aArr->GetElement(i)));
nsString isDefault(getNormalizedString(aArr->GetElement(i + 1)));
nsString packageName(getNormalizedString(aArr->GetElement(i + 2)));
nsString className(getNormalizedString(aArr->GetElement(i + 3)));
nsIHandlerApp* app = nsOSHelperAppService::CreateAndroidHandlerApp(
name, className, packageName, className, aMimeType, aAction);
aHandlersArray->AppendElement(app);
if (aDefaultApp && isDefault.Length() > 0) *aDefaultApp = app;
}
}
bool AndroidBridge::GetHandlersForMimeType(const nsAString& aMimeType,
nsIMutableArray* aHandlersArray,
nsIHandlerApp** aDefaultApp,
const nsAString& aAction) {
ALOG_BRIDGE("AndroidBridge::GetHandlersForMimeType");
auto arr = java::GeckoAppShell::GetHandlersForMimeType(aMimeType, aAction);
if (!arr) return false;
JNIEnv* const env = arr.Env();
size_t len = arr->Length();
if (!aHandlersArray) return len > 0;
getHandlersFromStringArray(env, arr, len, aHandlersArray, aDefaultApp,
aAction, NS_ConvertUTF16toUTF8(aMimeType));
return true;
}
bool AndroidBridge::HasHWVP8Encoder() {
ALOG_BRIDGE("AndroidBridge::HasHWVP8Encoder");
bool value = java::GeckoAppShell::HasHWVP8Encoder();
return value;
}
bool AndroidBridge::HasHWVP8Decoder() {
ALOG_BRIDGE("AndroidBridge::HasHWVP8Decoder");
bool value = java::GeckoAppShell::HasHWVP8Decoder();
return value;
}
bool AndroidBridge::HasHWH264() {
ALOG_BRIDGE("AndroidBridge::HasHWH264");
return java::HardwareCodecCapabilityUtils::HasHWH264();
}
bool AndroidBridge::GetHandlersForURL(const nsAString& aURL,
nsIMutableArray* aHandlersArray,
nsIHandlerApp** aDefaultApp,
const nsAString& aAction) {
ALOG_BRIDGE("AndroidBridge::GetHandlersForURL");
auto arr = java::GeckoAppShell::GetHandlersForURL(aURL, aAction);
if (!arr) return false;
JNIEnv* const env = arr.Env();
size_t len = arr->Length();
if (!aHandlersArray) return len > 0;
getHandlersFromStringArray(env, arr, len, aHandlersArray, aDefaultApp,
aAction);
return true;
}
void AndroidBridge::GetMimeTypeFromExtensions(const nsACString& aFileExt,
nsCString& aMimeType) {
ALOG_BRIDGE("AndroidBridge::GetMimeTypeFromExtensions");
auto jstrType = java::GeckoAppShell::GetMimeTypeFromExtensions(aFileExt);
if (jstrType) {
aMimeType = jstrType->ToCString();
}
}
void AndroidBridge::GetExtensionFromMimeType(const nsACString& aMimeType,
nsACString& aFileExt) {
ALOG_BRIDGE("AndroidBridge::GetExtensionFromMimeType");
auto jstrExt = java::GeckoAppShell::GetExtensionFromMimeType(aMimeType);
if (jstrExt) {
aFileExt = jstrExt->ToCString();
}
}
gfx::Rect AndroidBridge::getScreenSize() {
ALOG_BRIDGE("AndroidBridge::getScreenSize");
java::sdk::Rect::LocalRef screenrect = java::GeckoAppShell::GetScreenSize();
gfx::Rect screensize(screenrect->Left(), screenrect->Top(),
screenrect->Width(), screenrect->Height());
return screensize;
}
int AndroidBridge::GetScreenDepth() {
ALOG_BRIDGE("%s", __PRETTY_FUNCTION__);
static int sDepth = 0;
if (sDepth) return sDepth;
const int DEFAULT_DEPTH = 16;
if (jni::IsAvailable()) {
sDepth = java::GeckoAppShell::GetScreenDepth();
}
if (!sDepth) return DEFAULT_DEPTH;
return sDepth;
}
void AndroidBridge::Vibrate(const nsTArray<uint32_t>& aPattern) {
ALOG_BRIDGE("%s", __PRETTY_FUNCTION__);
uint32_t len = aPattern.Length();
if (!len) {
ALOG_BRIDGE(" invalid 0-length array");
return;
}
// It's clear if this worth special-casing, but it creates less
// java junk, so dodges the GC.
if (len == 1) {
jlong d = aPattern[0];
if (d < 0) {
ALOG_BRIDGE(" invalid vibration duration < 0");
return;
}
java::GeckoAppShell::Vibrate(d);
return;
}
// First element of the array vibrate() expects is how long to wait
// *before* vibrating. For us, this is always 0.
JNIEnv* const env = jni::GetGeckoThreadEnv();
AutoLocalJNIFrame jniFrame(env, 1);
jlongArray array = env->NewLongArray(len + 1);
if (!array) {
ALOG_BRIDGE(" failed to allocate array");
return;
}
jlong* elts = env->GetLongArrayElements(array, nullptr);
elts[0] = 0;
for (uint32_t i = 0; i < aPattern.Length(); ++i) {
jlong d = aPattern[i];
if (d < 0) {
ALOG_BRIDGE(" invalid vibration duration < 0");
env->ReleaseLongArrayElements(array, elts, JNI_ABORT);
return;
}
elts[i + 1] = d;
}
env->ReleaseLongArrayElements(array, elts, 0);
java::GeckoAppShell::Vibrate(jni::LongArray::Ref::From(array),
-1 /* don't repeat */);
}
void AndroidBridge::GetIconForExtension(const nsACString& aFileExt,
uint32_t aIconSize,
uint8_t* const aBuf) {
ALOG_BRIDGE("AndroidBridge::GetIconForExtension");
NS_ASSERTION(aBuf != nullptr,
"AndroidBridge::GetIconForExtension: aBuf is null!");
if (!aBuf) return;
auto arr = java::GeckoAppShell::GetIconForExtension(
NS_ConvertUTF8toUTF16(aFileExt), aIconSize);
NS_ASSERTION(
arr != nullptr,
"AndroidBridge::GetIconForExtension: Returned pixels array is null!");
if (!arr) return;
JNIEnv* const env = arr.Env();
uint32_t len = static_cast<uint32_t>(env->GetArrayLength(arr.Get()));
jbyte* elements = env->GetByteArrayElements(arr.Get(), 0);
uint32_t bufSize = aIconSize * aIconSize * 4;
NS_ASSERTION(
len == bufSize,
"AndroidBridge::GetIconForExtension: Pixels array is incomplete!");
if (len == bufSize) memcpy(aBuf, elements, bufSize);
env->ReleaseByteArrayElements(arr.Get(), elements, 0);
}
bool AndroidBridge::GetStaticIntField(const char* className,
const char* fieldName, int32_t* aInt,
JNIEnv* jEnv /* = nullptr */) {
ALOG_BRIDGE("AndroidBridge::GetStaticIntField %s", fieldName);
if (!jEnv) {
if (!jni::IsAvailable()) {
return false;
}
jEnv = jni::GetGeckoThreadEnv();
}
AutoJNIClass cls(jEnv, className);
jfieldID field = cls.getStaticField(fieldName, "I");
if (!field) {
return false;
}
*aInt = static_cast<int32_t>(jEnv->GetStaticIntField(cls.getRawRef(), field));
return true;
}
bool AndroidBridge::GetStaticStringField(const char* className,
const char* fieldName,
nsAString& result,
JNIEnv* jEnv /* = nullptr */) {
ALOG_BRIDGE("AndroidBridge::GetStaticStringField %s", fieldName);
if (!jEnv) {
if (!jni::IsAvailable()) {
return false;
}
jEnv = jni::GetGeckoThreadEnv();
}
AutoLocalJNIFrame jniFrame(jEnv, 1);
AutoJNIClass cls(jEnv, className);
jfieldID field = cls.getStaticField(fieldName, "Ljava/lang/String;");
if (!field) {
return false;
}
jstring jstr = (jstring)jEnv->GetStaticObjectField(cls.getRawRef(), field);
if (!jstr) return false;
result.Assign(jni::String::Ref::From(jstr)->ToString());
return true;
}
namespace mozilla {
class TracerRunnable : public Runnable {
public:
TracerRunnable() : Runnable("TracerRunnable") {
mTracerLock = new Mutex("TracerRunnable");
mTracerCondVar = new CondVar(*mTracerLock, "TracerRunnable");
mMainThread = do_GetMainThread();
}
~TracerRunnable() {
delete mTracerCondVar;
delete mTracerLock;
mTracerLock = nullptr;
mTracerCondVar = nullptr;
}
virtual nsresult Run() {
MutexAutoLock lock(*mTracerLock);
if (!AndroidBridge::Bridge()) return NS_OK;
mHasRun = true;
mTracerCondVar->Notify();
return NS_OK;
}
bool Fire() {
if (!mTracerLock || !mTracerCondVar) return false;
MutexAutoLock lock(*mTracerLock);
mHasRun = false;
mMainThread->Dispatch(this, NS_DISPATCH_NORMAL);
while (!mHasRun) mTracerCondVar->Wait();
return true;
}
void Signal() {
MutexAutoLock lock(*mTracerLock);
mHasRun = true;
mTracerCondVar->Notify();
}
private:
Mutex* mTracerLock;
CondVar* mTracerCondVar;
bool mHasRun;
nsCOMPtr<nsIThread> mMainThread;
};
StaticRefPtr<TracerRunnable> sTracerRunnable;
bool InitWidgetTracing() {
if (!sTracerRunnable) sTracerRunnable = new TracerRunnable();
return true;
}
void CleanUpWidgetTracing() { sTracerRunnable = nullptr; }
bool FireAndWaitForTracerEvent() {
if (sTracerRunnable) return sTracerRunnable->Fire();
return false;
}
void SignalTracerThread() {
if (sTracerRunnable) return sTracerRunnable->Signal();
}
} // namespace mozilla
void AndroidBridge::GetCurrentBatteryInformation(
hal::BatteryInformation* aBatteryInfo) {
ALOG_BRIDGE("AndroidBridge::GetCurrentBatteryInformation");
// To prevent calling too many methods through JNI, the Java method returns
// an array of double even if we actually want a double and a boolean.
auto arr = java::GeckoAppShell::GetCurrentBatteryInformation();
JNIEnv* const env = arr.Env();
if (!arr || env->GetArrayLength(arr.Get()) != 3) {
return;
}
jdouble* info = env->GetDoubleArrayElements(arr.Get(), 0);
aBatteryInfo->level() = info[0];
aBatteryInfo->charging() = info[1] == 1.0f;
aBatteryInfo->remainingTime() = info[2];
env->ReleaseDoubleArrayElements(arr.Get(), info, 0);
}
void AndroidBridge::GetCurrentNetworkInformation(
hal::NetworkInformation* aNetworkInfo) {
ALOG_BRIDGE("AndroidBridge::GetCurrentNetworkInformation");
// To prevent calling too many methods through JNI, the Java method returns
// an array of double even if we actually want an integer, a boolean, and an
// integer.
auto arr = java::GeckoAppShell::GetCurrentNetworkInformation();
JNIEnv* const env = arr.Env();
if (!arr || env->GetArrayLength(arr.Get()) != 3) {
return;
}
jdouble* info = env->GetDoubleArrayElements(arr.Get(), 0);
aNetworkInfo->type() = info[0];
aNetworkInfo->isWifi() = info[1] == 1.0f;
aNetworkInfo->dhcpGateway() = info[2];
env->ReleaseDoubleArrayElements(arr.Get(), info, 0);
}
jobject AndroidBridge::GetGlobalContextRef() {
// The context object can change, so get a fresh copy every time.
auto context = java::GeckoAppShell::GetApplicationContext();
sGlobalContext = jni::Object::GlobalRef(context).Forget();
MOZ_ASSERT(sGlobalContext);
return sGlobalContext;
}
/* Implementation file */
NS_IMPL_ISUPPORTS(nsAndroidBridge, nsIAndroidEventDispatcher, nsIAndroidBridge,
nsIObserver)
nsAndroidBridge::nsAndroidBridge() {
if (jni::IsAvailable()) {
RefPtr<widget::EventDispatcher> dispatcher = new widget::EventDispatcher();
dispatcher->Attach(java::EventDispatcher::GetInstance(),
/* window */ nullptr);
mEventDispatcher = dispatcher;
}
AddObservers();
}
nsAndroidBridge::~nsAndroidBridge() {}
NS_IMETHODIMP nsAndroidBridge::ContentDocumentChanged(
mozIDOMWindowProxy* aWindow) {
AndroidBridge::Bridge()->ContentDocumentChanged(aWindow);
return NS_OK;
}
NS_IMETHODIMP nsAndroidBridge::IsContentDocumentDisplayed(
mozIDOMWindowProxy* aWindow, bool* aRet) {
*aRet = AndroidBridge::Bridge()->IsContentDocumentDisplayed(aWindow);
return NS_OK;
}
NS_IMETHODIMP
nsAndroidBridge::Observe(nsISupports* aSubject, const char* aTopic,
const char16_t* aData) {
if (!strcmp(aTopic, "xpcom-shutdown")) {
RemoveObservers();
}
return NS_OK;
}
void nsAndroidBridge::AddObservers() {
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->AddObserver(this, "xpcom-shutdown", false);
}
}
void nsAndroidBridge::RemoveObservers() {
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->RemoveObserver(this, "xpcom-shutdown");
}
}
uint32_t AndroidBridge::GetScreenOrientation() {
ALOG_BRIDGE("AndroidBridge::GetScreenOrientation");
int16_t orientation = java::GeckoAppShell::GetScreenOrientation();
return static_cast<hal::ScreenOrientation>(orientation);
}
uint16_t AndroidBridge::GetScreenAngle() {
return java::GeckoAppShell::GetScreenAngle();
}
nsresult AndroidBridge::GetProxyForURI(const nsACString& aSpec,
const nsACString& aScheme,
const nsACString& aHost,
const int32_t aPort,
nsACString& aResult) {
if (!jni::IsAvailable()) {
return NS_ERROR_FAILURE;
}
auto jstrRet =
java::GeckoAppShell::GetProxyForURI(aSpec, aScheme, aHost, aPort);
if (!jstrRet) return NS_ERROR_FAILURE;
aResult = jstrRet->ToCString();
return NS_OK;
}
bool AndroidBridge::PumpMessageLoop() {
JNIEnv* const env = jni::GetGeckoThreadEnv();
if (mMessageQueueMessages) {
auto msg = jni::Object::LocalRef::Adopt(
env, env->GetObjectField(mMessageQueue.Get(), mMessageQueueMessages));
// if queue.mMessages is null, queue.next() will block, which we don't
// want. It turns out to be an order of magnitude more performant to do
// this extra check here and block less vs. one fewer checks here and
// more blocking.
if (!msg) {
return false;
}
}
auto msg = jni::Object::LocalRef::Adopt(
env, env->CallObjectMethod(mMessageQueue.Get(), mMessageQueueNext));
if (!msg) {
return false;
}
return java::GeckoThread::PumpMessageLoop(msg);
}
NS_IMETHODIMP nsAndroidBridge::GetIsFennec(bool* aIsFennec) {
*aIsFennec = false;
return NS_OK;
}
NS_IMETHODIMP nsAndroidBridge::GetBrowserApp(
nsIAndroidBrowserApp** aBrowserApp) {
nsAppShell* const appShell = nsAppShell::Get();
if (appShell) NS_IF_ADDREF(*aBrowserApp = appShell->GetBrowserApp());
return NS_OK;
}
NS_IMETHODIMP nsAndroidBridge::SetBrowserApp(
nsIAndroidBrowserApp* aBrowserApp) {
nsAppShell* const appShell = nsAppShell::Get();
if (appShell) appShell->SetBrowserApp(aBrowserApp);
return NS_OK;
}
extern "C" __attribute__((visibility("default"))) jobject JNICALL
Java_org_mozilla_gecko_GeckoAppShell_allocateDirectBuffer(JNIEnv* env, jclass,
jlong size);
void AndroidBridge::ContentDocumentChanged(mozIDOMWindowProxy* aWindow) {
if (RefPtr<nsWindow> widget =
nsWindow::From(nsPIDOMWindowOuter::From(aWindow))) {
widget->SetContentDocumentDisplayed(false);
}
}
bool AndroidBridge::IsContentDocumentDisplayed(mozIDOMWindowProxy* aWindow) {
if (RefPtr<nsWindow> widget =
nsWindow::From(nsPIDOMWindowOuter::From(aWindow))) {
return widget->IsContentDocumentDisplayed();
}
return false;
}
jni::Object::LocalRef AndroidBridge::ChannelCreate(jni::Object::Param stream) {
JNIEnv* const env = jni::GetEnvForThread();
auto rv = jni::Object::LocalRef::Adopt(
env, env->CallStaticObjectMethod(sBridge->jChannels,
sBridge->jChannelCreate, stream.Get()));
MOZ_CATCH_JNI_EXCEPTION(env);
return rv;
}
void AndroidBridge::InputStreamClose(jni::Object::Param obj) {
JNIEnv* const env = jni::GetEnvForThread();
env->CallVoidMethod(obj.Get(), sBridge->jClose);
MOZ_CATCH_JNI_EXCEPTION(env);
}
uint32_t AndroidBridge::InputStreamAvailable(jni::Object::Param obj) {
JNIEnv* const env = jni::GetEnvForThread();
auto rv = env->CallIntMethod(obj.Get(), sBridge->jAvailable);
MOZ_CATCH_JNI_EXCEPTION(env);
return rv;
}
nsresult AndroidBridge::InputStreamRead(jni::Object::Param obj, char* aBuf,
uint32_t aCount, uint32_t* aRead) {
JNIEnv* const env = jni::GetEnvForThread();
auto arr = jni::ByteBuffer::New(aBuf, aCount);
jint read =
env->CallIntMethod(obj.Get(), sBridge->jByteBufferRead, arr.Get());
if (env->ExceptionCheck()) {
env->ExceptionClear();
return NS_ERROR_FAILURE;
}
if (read <= 0) {
*aRead = 0;
return NS_OK;
}
*aRead = read;
return NS_OK;
}
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