mozilla
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gecko-dev
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gecko-dev/widget/android/AndroidBridge.cpp

2191 строка
68 KiB
C++
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/* -*- Mode: c++; c-basic-offset: 4; 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 "mozilla/layers/CompositorChild.h"
#include "mozilla/layers/CompositorParent.h"
#include <android/log.h>
#include <dlfcn.h>
#include <math.h>
#include "mozilla/Hal.h"
#include "nsXULAppAPI.h"
#include <prthread.h>
#include "nsXPCOMStrings.h"
#include "AndroidBridge.h"
#include "AndroidJNIWrapper.h"
#include "AndroidBridgeUtilities.h"
#include "nsAppShell.h"
#include "nsOSHelperAppService.h"
#include "nsWindow.h"
#include "mozilla/Preferences.h"
#include "nsThreadUtils.h"
#include "nsIThreadManager.h"
#include "mozilla/dom/mobilemessage/PSms.h"
#include "gfxPlatform.h"
#include "gfxContext.h"
#include "mozilla/gfx/2D.h"
#include "gfxUtils.h"
#include "nsPresContext.h"
#include "nsIDocShell.h"
#include "nsPIDOMWindow.h"
#include "mozilla/dom/ScreenOrientation.h"
#include "nsIDOMWindowUtils.h"
#include "nsIDOMClientRect.h"
#include "StrongPointer.h"
#include "mozilla/ClearOnShutdown.h"
#include "nsPrintfCString.h"
#include "NativeJSContainer.h"
#include "nsContentUtils.h"
#include "nsIScriptError.h"
#include "nsIHttpChannel.h"
#include "MediaCodec.h"
#include "SurfaceTexture.h"
#include "GLContextProvider.h"
using namespace mozilla;
using namespace mozilla::gfx;
using namespace mozilla::jni;
using namespace mozilla::widget;
AndroidBridge* AndroidBridge::sBridge = nullptr;
pthread_t AndroidBridge::sJavaUiThread = -1;
static unsigned sJavaEnvThreadIndex = 0;
static jobject sGlobalContext = nullptr;
static void JavaThreadDetachFunc(void *arg);
// This is a dummy class that can be used in the template for android::sp
class AndroidRefable {
void incStrong(void* thing) { }
void decStrong(void* thing) { }
};
// This isn't in AndroidBridge.h because including StrongPointer.h there is gross
static android::sp<AndroidRefable> (*android_SurfaceTexture_getNativeWindow)(JNIEnv* env, jobject surfaceTexture) = nullptr;
jclass AndroidBridge::GetClassGlobalRef(JNIEnv* env, const char* className)
{
// First try the default class loader.
auto classRef = ClassObject::LocalRef::Adopt(
env, env->FindClass(className));
if (!classRef && sBridge && sBridge->mClassLoader) {
// If the default class loader failed but we have an app class loader, try that.
// Clear the pending exception from failed FindClass call above.
env->ExceptionClear();
classRef = ClassObject::LocalRef::Adopt(env,
env->CallObjectMethod(sBridge->mClassLoader.Get(),
sBridge->mClassLoaderLoadClass,
Param<String>::Type(className, env).Get()));
}
if (!classRef) {
ALOG(">>> FATAL JNI ERROR! FindClass(className=\"%s\") failed. "
"Did ProGuard optimize away something it shouldn't have?",
className);
env->ExceptionDescribe();
MOZ_CRASH();
}
return ClassObject::GlobalRef(env, classRef).Forget();
}
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(JNIEnv *jEnv, Object::Param clsLoader, Object::Param msgQueue)
{
/* 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("NSS_DISABLE_UNLOAD=1");
PR_NewThreadPrivateIndex(&sJavaEnvThreadIndex, JavaThreadDetachFunc);
MOZ_ASSERT(!sBridge);
sBridge = new AndroidBridge;
sBridge->Init(jEnv, clsLoader); // Success or crash
auto msgQueueClass = ClassObject::LocalRef::Adopt(
jEnv, jEnv->GetObjectClass(msgQueue.Get()));
sBridge->mMessageQueue = msgQueue;
// mMessageQueueNext must not be null
sBridge->mMessageQueueNext = GetMethodID(
jEnv, msgQueueClass.Get(), "next", "()Landroid/os/Message;");
// mMessageQueueMessages may be null (e.g. due to proguard optimization)
sBridge->mMessageQueueMessages = jEnv->GetFieldID(
msgQueueClass.Get(), "mMessages", "Landroid/os/Message;");
}
void
AndroidBridge::Init(JNIEnv *jEnv, Object::Param clsLoader)
{
ALOG_BRIDGE("AndroidBridge::Init");
jEnv->GetJavaVM(&mJavaVM);
if (!mJavaVM) {
MOZ_CRASH(); // Nothing we can do here
}
AutoLocalJNIFrame jniFrame(jEnv);
mClassLoader = Object::GlobalRef(jEnv, clsLoader);
mClassLoaderLoadClass = GetMethodID(
jEnv, jEnv->GetObjectClass(clsLoader.Get()),
"loadClass", "(Ljava/lang/String;)Ljava/lang/Class;");
mJNIEnv = nullptr;
mThread = pthread_t();
mGLControllerObj = nullptr;
mOpenedGraphicsLibraries = false;
mHasNativeBitmapAccess = false;
mHasNativeWindowAccess = false;
mHasNativeWindowFallback = false;
#ifdef MOZ_WEBSMS_BACKEND
AutoJNIClass smsMessage(jEnv, "android/telephony/SmsMessage");
mAndroidSmsMessageClass = smsMessage.getGlobalRef();
jCalculateLength = smsMessage.getStaticMethod("calculateLength", "(Ljava/lang/CharSequence;Z)[I");
#endif
AutoJNIClass string(jEnv, "java/lang/String");
jStringClass = string.getGlobalRef();
if (!GetStaticIntField("android/os/Build$VERSION", "SDK_INT", &mAPIVersion, jEnv)) {
ALOG_BRIDGE("Failed to find API version");
}
AutoJNIClass surface(jEnv, "android/view/Surface");
jSurfaceClass = surface.getGlobalRef();
if (mAPIVersion <= 8 /* Froyo */) {
jSurfacePointerField = surface.getField("mSurface", "I");
} else if (mAPIVersion > 8 && mAPIVersion < 19 /* KitKat */) {
jSurfacePointerField = surface.getField("mNativeSurface", "I");
} else {
// We don't know how to get this, just set it to 0
jSurfacePointerField = 0;
}
AutoJNIClass egl(jEnv, "com/google/android/gles_jni/EGLSurfaceImpl");
jclass eglClass = egl.getGlobalRef();
if (eglClass) {
// The pointer type moved to a 'long' in Android L, API version 20
const char* jniType = mAPIVersion >= 20 ? "J" : "I";
jEGLSurfacePointerField = egl.getField("mEGLSurface", jniType);
} else {
jEGLSurfacePointerField = 0;
}
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");
InitAndroidJavaWrappers(jEnv);
// jEnv should NOT be cached here by anything -- the jEnv here
// is not valid for the real gecko main thread, which is set
// at SetMainThread time.
}
bool
AndroidBridge::SetMainThread(pthread_t thr)
{
ALOG_BRIDGE("AndroidBridge::SetMainThread");
if (thr) {
mThread = thr;
mJavaVM->GetEnv((void**) &mJNIEnv, JNI_VERSION_1_2);
return (bool) mJNIEnv;
}
mJNIEnv = nullptr;
mThread = pthread_t();
// SetMainThread(0) is called on Gecko shutdown,
// so we should clean up the bridge here.
if (sBridge) {
delete sBridge;
// AndroidBridge destruction requires sBridge to still be valid,
// so we set sBridge to nullptr after deleting it.
sBridge = nullptr;
}
return true;
}
// Raw JNIEnv variants.
jstring AndroidBridge::NewJavaString(JNIEnv* env, const char16_t* string, uint32_t len) {
jstring ret = env->NewString(reinterpret_cast<const jchar*>(string), len);
if (env->ExceptionCheck()) {
ALOG_BRIDGE("Exceptional exit of: %s", __PRETTY_FUNCTION__);
env->ExceptionDescribe();
env->ExceptionClear();
return nullptr;
}
return ret;
}
jstring AndroidBridge::NewJavaString(JNIEnv* env, const nsAString& string) {
return NewJavaString(env, string.BeginReading(), string.Length());
}
jstring AndroidBridge::NewJavaString(JNIEnv* env, const char* string) {
return NewJavaString(env, NS_ConvertUTF8toUTF16(string));
}
jstring AndroidBridge::NewJavaString(JNIEnv* env, const nsACString& string) {
return NewJavaString(env, NS_ConvertUTF8toUTF16(string));
}
// AutoLocalJNIFrame variants..
jstring AndroidBridge::NewJavaString(AutoLocalJNIFrame* frame, const char16_t* string, uint32_t len) {
return NewJavaString(frame->GetEnv(), string, len);
}
jstring AndroidBridge::NewJavaString(AutoLocalJNIFrame* frame, const nsAString& string) {
return NewJavaString(frame, string.BeginReading(), string.Length());
}
jstring AndroidBridge::NewJavaString(AutoLocalJNIFrame* frame, const char* string) {
return NewJavaString(frame, NS_ConvertUTF8toUTF16(string));
}
jstring AndroidBridge::NewJavaString(AutoLocalJNIFrame* frame, const nsACString& string) {
return NewJavaString(frame, NS_ConvertUTF8toUTF16(string));
}
extern "C" {
__attribute__ ((visibility("default")))
JNIEnv * GetJNIForThread()
{
JNIEnv *jEnv = static_cast<JNIEnv*>(PR_GetThreadPrivate(sJavaEnvThreadIndex));
if (jEnv) {
return jEnv;
}
JavaVM *jVm = mozilla::AndroidBridge::GetVM();
if (!jVm->GetEnv(reinterpret_cast<void**>(&jEnv), JNI_VERSION_1_2)) {
MOZ_ASSERT(jEnv);
return jEnv;
}
if (!jVm->AttachCurrentThread(&jEnv, nullptr)) {
MOZ_ASSERT(jEnv);
PR_SetThreadPrivate(sJavaEnvThreadIndex, jEnv);
return jEnv;
}
MOZ_CRASH();
return nullptr; // unreachable
}
}
void AutoGlobalWrappedJavaObject::Dispose() {
if (isNull()) {
return;
}
GetJNIForThread()->DeleteGlobalRef(wrapped_obj);
wrapped_obj = nullptr;
}
AutoGlobalWrappedJavaObject::~AutoGlobalWrappedJavaObject() {
Dispose();
}
// Decides if we should store thumbnails for a given docshell based on the presence
// of a Cache-Control: no-store header and the "browser.cache.disk_cache_ssl" pref.
static bool ShouldStoreThumbnail(nsIDocShell* docshell) {
if (!docshell) {
return false;
}
nsresult rv;
nsCOMPtr<nsIChannel> channel;
docshell->GetCurrentDocumentChannel(getter_AddRefs(channel));
if (!channel) {
return false;
}
nsCOMPtr<nsIHttpChannel> httpChannel;
rv = channel->QueryInterface(NS_GET_IID(nsIHttpChannel), getter_AddRefs(httpChannel));
if (!NS_SUCCEEDED(rv)) {
return false;
}
// Don't store thumbnails for sites that didn't load
uint32_t responseStatus;
rv = httpChannel->GetResponseStatus(&responseStatus);
if (!NS_SUCCEEDED(rv) || floor((double) (responseStatus / 100)) != 2) {
return false;
}
// Cache-Control: no-store.
bool isNoStoreResponse = false;
httpChannel->IsNoStoreResponse(&isNoStoreResponse);
if (isNoStoreResponse) {
return false;
}
// Deny storage if we're viewing a HTTPS page with a
// 'Cache-Control' header having a value that is not 'public'.
nsCOMPtr<nsIURI> uri;
rv = channel->GetURI(getter_AddRefs(uri));
if (!NS_SUCCEEDED(rv)) {
return false;
}
// Don't capture HTTPS pages unless the user enabled it
// or the page has a Cache-Control:public header.
bool isHttps = false;
uri->SchemeIs("https", &isHttps);
if (isHttps && !Preferences::GetBool("browser.cache.disk_cache_ssl", false)) {
nsAutoCString cacheControl;
rv = httpChannel->GetResponseHeader(NS_LITERAL_CSTRING("Cache-Control"), cacheControl);
if (!NS_SUCCEEDED(rv)) {
return false;
}
if (!cacheControl.IsEmpty() && !cacheControl.LowerCaseEqualsLiteral("public")) {
return false;
}
}
return true;
}
static void
getHandlersFromStringArray(JNIEnv *aJNIEnv, jobjectArray jArr, jsize aLen,
nsIMutableArray *aHandlersArray,
nsIHandlerApp **aDefaultApp,
const nsAString& aAction = EmptyString(),
const nsACString& aMimeType = EmptyCString())
{
nsString empty = EmptyString();
for (jsize i = 0; i < aLen; i+=4) {
AutoLocalJNIFrame jniFrame(aJNIEnv, 4);
nsJNIString name(
static_cast<jstring>(aJNIEnv->GetObjectArrayElement(jArr, i)), aJNIEnv);
nsJNIString isDefault(
static_cast<jstring>(aJNIEnv->GetObjectArrayElement(jArr, i + 1)), aJNIEnv);
nsJNIString packageName(
static_cast<jstring>(aJNIEnv->GetObjectArrayElement(jArr, i + 2)), aJNIEnv);
nsJNIString className(
static_cast<jstring>(aJNIEnv->GetObjectArrayElement(jArr, i + 3)), aJNIEnv);
nsIHandlerApp* app = nsOSHelperAppService::
CreateAndroidHandlerApp(name, className, packageName,
className, aMimeType, aAction);
aHandlersArray->AppendElement(app, false);
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 = GeckoAppShell::GetHandlersForMimeTypeWrapper(aMimeType, aAction);
if (!arr)
return false;
JNIEnv* const env = arr.Env();
jsize len = env->GetArrayLength(arr.Get());
if (!aHandlersArray)
return len > 0;
getHandlersFromStringArray(env, arr.Get(), len, aHandlersArray,
aDefaultApp, aAction,
NS_ConvertUTF16toUTF8(aMimeType));
return true;
}
bool
AndroidBridge::GetHandlersForURL(const nsAString& aURL,
nsIMutableArray* aHandlersArray,
nsIHandlerApp **aDefaultApp,
const nsAString& aAction)
{
ALOG_BRIDGE("AndroidBridge::GetHandlersForURL");
auto arr = GeckoAppShell::GetHandlersForURLWrapper(aURL, aAction);
if (!arr)
return false;
JNIEnv* const env = arr.Env();
jsize len = env->GetArrayLength(arr.Get());
if (!aHandlersArray)
return len > 0;
getHandlersFromStringArray(env, arr.Get(), len, aHandlersArray,
aDefaultApp, aAction);
return true;
}
void
AndroidBridge::GetMimeTypeFromExtensions(const nsACString& aFileExt, nsCString& aMimeType)
{
ALOG_BRIDGE("AndroidBridge::GetMimeTypeFromExtensions");
auto jstrType = GeckoAppShell::GetMimeTypeFromExtensionsWrapper(aFileExt);
if (jstrType) {
aMimeType = jstrType;
}
}
void
AndroidBridge::GetExtensionFromMimeType(const nsACString& aMimeType, nsACString& aFileExt)
{
ALOG_BRIDGE("AndroidBridge::GetExtensionFromMimeType");
auto jstrExt = GeckoAppShell::GetExtensionFromMimeTypeWrapper(aMimeType);
if (jstrExt) {
aFileExt = nsCString(jstrExt);
}
}
bool
AndroidBridge::GetClipboardText(nsAString& aText)
{
ALOG_BRIDGE("AndroidBridge::GetClipboardText");
auto text = Clipboard::GetClipboardTextWrapper();
if (text) {
aText = nsString(text);
}
return !!text;
}
void
AndroidBridge::ShowAlertNotification(const nsAString& aImageUrl,
const nsAString& aAlertTitle,
const nsAString& aAlertText,
const nsAString& aAlertCookie,
nsIObserver *aAlertListener,
const nsAString& aAlertName)
{
if (nsAppShell::gAppShell && aAlertListener) {
// This will remove any observers already registered for this id
nsAppShell::gAppShell->PostEvent(AndroidGeckoEvent::MakeAddObserver(aAlertName, aAlertListener));
}
GeckoAppShell::ShowAlertNotificationWrapper
(aImageUrl, aAlertTitle, aAlertText, aAlertCookie, aAlertName);
}
int
AndroidBridge::GetDPI()
{
static int sDPI = 0;
if (sDPI)
return sDPI;
const int DEFAULT_DPI = 160;
sDPI = GeckoAppShell::GetDpiWrapper();
if (!sDPI) {
return DEFAULT_DPI;
}
return sDPI;
}
int
AndroidBridge::GetScreenDepth()
{
ALOG_BRIDGE("%s", __PRETTY_FUNCTION__);
static int sDepth = 0;
if (sDepth)
return sDepth;
const int DEFAULT_DEPTH = 16;
if (HasEnv()) {
sDepth = GeckoAppShell::GetScreenDepthWrapper();
}
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;
}
GeckoAppShell::Vibrate1(d);
return;
}
// First element of the array vibrate() expects is how long to wait
// *before* vibrating. For us, this is always 0.
JNIEnv *env = GetJNIEnv();
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);
GeckoAppShell::VibrateA(LongArray::Ref::From(array), -1 /* don't repeat */);
}
void
AndroidBridge::GetSystemColors(AndroidSystemColors *aColors)
{
NS_ASSERTION(aColors != nullptr, "AndroidBridge::GetSystemColors: aColors is null!");
if (!aColors)
return;
auto arr = GeckoAppShell::GetSystemColoursWrapper();
if (!arr)
return;
JNIEnv* const env = arr.Env();
uint32_t len = static_cast<uint32_t>(env->GetArrayLength(arr.Get()));
jint *elements = env->GetIntArrayElements(arr.Get(), 0);
uint32_t colorsCount = sizeof(AndroidSystemColors) / sizeof(nscolor);
if (len < colorsCount)
colorsCount = len;
// Convert Android colors to nscolor by switching R and B in the ARGB 32 bit value
nscolor *colors = (nscolor*)aColors;
for (uint32_t i = 0; i < colorsCount; i++) {
uint32_t androidColor = static_cast<uint32_t>(elements[i]);
uint8_t r = (androidColor & 0x00ff0000) >> 16;
uint8_t b = (androidColor & 0x000000ff);
colors[i] = (androidColor & 0xff00ff00) | (b << 16) | r;
}
env->ReleaseIntArrayElements(arr.Get(), elements, 0);
}
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 = GeckoAppShell::GetIconForExtensionWrapper
(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);
}
void
AndroidBridge::SetLayerClient(GeckoLayerClient::Param jobj)
{
// if resetting is true, that means Android destroyed our GeckoApp activity
// and we had to recreate it, but all the Gecko-side things were not destroyed.
// We therefore need to link up the new java objects to Gecko, and that's what
// we do here.
bool resetting = (mLayerClient != nullptr);
mLayerClient = jobj;
if (resetting) {
// since we are re-linking the new java objects to Gecko, we need to get
// the viewport from the compositor (since the Java copy was thrown away)
// and we do that by setting the first-paint flag.
nsWindow::ForceIsFirstPaint();
}
}
void
AndroidBridge::RegisterCompositor(JNIEnv *env)
{
if (mGLControllerObj != nullptr) {
// we already have this set up, no need to do it again
return;
}
mGLControllerObj = GLController::LocalRef(
LayerView::RegisterCompositorWrapper());
}
EGLSurface
AndroidBridge::CreateEGLSurfaceForCompositor()
{
if (!jEGLSurfacePointerField) {
return nullptr;
}
MOZ_ASSERT(mGLControllerObj, "AndroidBridge::CreateEGLSurfaceForCompositor called with a null GL controller ref");
auto eglSurface = mGLControllerObj->CreateEGLSurfaceForCompositorWrapper();
if (!eglSurface) {
return nullptr;
}
JNIEnv* const env = GetJNIForThread(); // called on the compositor thread
return reinterpret_cast<EGLSurface>(
env->GetIntField(eglSurface.Get(), jEGLSurfacePointerField));
}
bool
AndroidBridge::GetStaticIntField(const char *className, const char *fieldName, int32_t* aInt, JNIEnv* jEnv /* = nullptr */)
{
ALOG_BRIDGE("AndroidBridge::GetStaticIntField %s", fieldName);
if (!jEnv) {
if (!HasEnv()) {
return false;
}
jEnv = GetJNIEnv();
}
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 (!HasEnv()) {
return false;
}
jEnv = GetJNIEnv();
}
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(nsJNIString(jstr, jEnv));
return true;
}
// Available for places elsewhere in the code to link to.
bool
mozilla_AndroidBridge_SetMainThread(pthread_t thr)
{
return AndroidBridge::Bridge()->SetMainThread(thr);
}
void*
AndroidBridge::GetNativeSurface(JNIEnv* env, jobject surface) {
if (!env || !mHasNativeWindowFallback || !jSurfacePointerField)
return nullptr;
return (void*)env->GetIntField(surface, jSurfacePointerField);
}
void
AndroidBridge::OpenGraphicsLibraries()
{
if (!mOpenedGraphicsLibraries) {
// Try to dlopen libjnigraphics.so for direct bitmap access on
// Android 2.2+ (API level 8)
mOpenedGraphicsLibraries = true;
mHasNativeWindowAccess = false;
mHasNativeWindowFallback = false;
mHasNativeBitmapAccess = false;
void *handle = dlopen("libjnigraphics.so", RTLD_LAZY | RTLD_LOCAL);
if (handle) {
AndroidBitmap_getInfo = (int (*)(JNIEnv *, jobject, void *))dlsym(handle, "AndroidBitmap_getInfo");
AndroidBitmap_lockPixels = (int (*)(JNIEnv *, jobject, void **))dlsym(handle, "AndroidBitmap_lockPixels");
AndroidBitmap_unlockPixels = (int (*)(JNIEnv *, jobject))dlsym(handle, "AndroidBitmap_unlockPixels");
mHasNativeBitmapAccess = AndroidBitmap_getInfo && AndroidBitmap_lockPixels && AndroidBitmap_unlockPixels;
ALOG_BRIDGE("Successfully opened libjnigraphics.so, have native bitmap access? %d", mHasNativeBitmapAccess);
}
// Try to dlopen libandroid.so for and native window access on
// Android 2.3+ (API level 9)
handle = dlopen("libandroid.so", RTLD_LAZY | RTLD_LOCAL);
if (handle) {
ANativeWindow_fromSurface = (void* (*)(JNIEnv*, jobject))dlsym(handle, "ANativeWindow_fromSurface");
ANativeWindow_release = (void (*)(void*))dlsym(handle, "ANativeWindow_release");
ANativeWindow_setBuffersGeometry = (int (*)(void*, int, int, int)) dlsym(handle, "ANativeWindow_setBuffersGeometry");
ANativeWindow_lock = (int (*)(void*, void*, void*)) dlsym(handle, "ANativeWindow_lock");
ANativeWindow_unlockAndPost = (int (*)(void*))dlsym(handle, "ANativeWindow_unlockAndPost");
ANativeWindow_getWidth = (int (*)(void*))dlsym(handle, "ANativeWindow_getWidth");
ANativeWindow_getHeight = (int (*)(void*))dlsym(handle, "ANativeWindow_getHeight");
// This is only available in Honeycomb and ICS. It was removed in Jelly Bean
ANativeWindow_fromSurfaceTexture = (void* (*)(JNIEnv*, jobject))dlsym(handle, "ANativeWindow_fromSurfaceTexture");
mHasNativeWindowAccess = ANativeWindow_fromSurface && ANativeWindow_release && ANativeWindow_lock && ANativeWindow_unlockAndPost;
ALOG_BRIDGE("Successfully opened libandroid.so, have native window access? %d", mHasNativeWindowAccess);
}
// We need one symbol from here on Jelly Bean
handle = dlopen("libandroid_runtime.so", RTLD_LAZY | RTLD_LOCAL);
if (handle) {
android_SurfaceTexture_getNativeWindow = (android::sp<AndroidRefable> (*)(JNIEnv*, jobject))dlsym(handle, "_ZN7android38android_SurfaceTexture_getNativeWindowEP7_JNIEnvP8_jobject");
}
if (mHasNativeWindowAccess)
return;
// Look up Surface functions, used for native window (surface) fallback
handle = dlopen("libsurfaceflinger_client.so", RTLD_LAZY);
if (handle) {
Surface_lock = (int (*)(void*, void*, void*, bool))dlsym(handle, "_ZN7android7Surface4lockEPNS0_11SurfaceInfoEPNS_6RegionEb");
Surface_unlockAndPost = (int (*)(void*))dlsym(handle, "_ZN7android7Surface13unlockAndPostEv");
handle = dlopen("libui.so", RTLD_LAZY);
if (handle) {
Region_constructor = (void (*)(void*))dlsym(handle, "_ZN7android6RegionC1Ev");
Region_set = (void (*)(void*, void*))dlsym(handle, "_ZN7android6Region3setERKNS_4RectE");
mHasNativeWindowFallback = Surface_lock && Surface_unlockAndPost && Region_constructor && Region_set;
}
}
}
}
namespace mozilla {
class TracerRunnable : public nsRunnable{
public:
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();
}
}
bool
AndroidBridge::HasNativeBitmapAccess()
{
OpenGraphicsLibraries();
return mHasNativeBitmapAccess;
}
bool
AndroidBridge::ValidateBitmap(jobject bitmap, int width, int height)
{
// This structure is defined in Android API level 8's <android/bitmap.h>
// Because we can't depend on this, we get the function pointers via dlsym
// and define this struct ourselves.
struct BitmapInfo {
uint32_t width;
uint32_t height;
uint32_t stride;
uint32_t format;
uint32_t flags;
};
int err;
struct BitmapInfo info = { 0, };
JNIEnv *env = GetJNIEnv();
if ((err = AndroidBitmap_getInfo(env, bitmap, &info)) != 0) {
ALOG_BRIDGE("AndroidBitmap_getInfo failed! (error %d)", err);
return false;
}
if ((int)info.width != width || (int)info.height != height)
return false;
return true;
}
bool
AndroidBridge::InitCamera(const nsCString& contentType, uint32_t camera, uint32_t *width, uint32_t *height, uint32_t *fps)
{
auto arr = GeckoAppShell::InitCameraWrapper
(NS_ConvertUTF8toUTF16(contentType), (int32_t) camera, (int32_t) *width, (int32_t) *height);
if (!arr)
return false;
JNIEnv* const env = arr.Env();
jint *elements = env->GetIntArrayElements(arr.Get(), 0);
*width = elements[1];
*height = elements[2];
*fps = elements[3];
bool res = elements[0] == 1;
env->ReleaseIntArrayElements(arr.Get(), elements, 0);
return res;
}
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 = GeckoAppShell::GetCurrentBatteryInformationWrapper();
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::HandleGeckoMessage(JSContext* cx, JS::HandleObject object)
{
ALOG_BRIDGE("%s", __PRETTY_FUNCTION__);
JNIEnv* const env = GetJNIEnv();
auto message = Object::LocalRef::Adopt(env,
mozilla::widget::CreateNativeJSContainer(env, cx, object));
GeckoAppShell::HandleGeckoMessageWrapper(message);
}
nsresult
AndroidBridge::GetSegmentInfoForText(const nsAString& aText,
nsIMobileMessageCallback* aRequest)
{
#ifndef MOZ_WEBSMS_BACKEND
return NS_ERROR_FAILURE;
#else
ALOG_BRIDGE("AndroidBridge::GetSegmentInfoForText");
int32_t segments, charsPerSegment, charsAvailableInLastSegment;
JNIEnv *env = GetJNIEnv();
AutoLocalJNIFrame jniFrame(env, 2);
jstring jText = NewJavaString(&jniFrame, aText);
jobject obj = env->CallStaticObjectMethod(mAndroidSmsMessageClass,
jCalculateLength, jText, JNI_FALSE);
if (jniFrame.CheckForException())
return NS_ERROR_FAILURE;
jintArray arr = static_cast<jintArray>(obj);
if (!arr || env->GetArrayLength(arr) != 4)
return NS_ERROR_FAILURE;
jint* info = env->GetIntArrayElements(arr, JNI_FALSE);
segments = info[0]; // msgCount
charsPerSegment = info[2]; // codeUnitsRemaining
// segmentChars = (codeUnitCount + codeUnitsRemaining) / msgCount
charsAvailableInLastSegment = (info[1] + info[2]) / info[0];
env->ReleaseIntArrayElements(arr, info, JNI_ABORT);
// TODO Bug 908598 - Should properly use |QueueSmsRequest(...)| to queue up
// the nsIMobileMessageCallback just like other functions.
return aRequest->NotifySegmentInfoForTextGot(segments,
charsPerSegment,
charsAvailableInLastSegment);
#endif
}
void
AndroidBridge::SendMessage(const nsAString& aNumber,
const nsAString& aMessage,
nsIMobileMessageCallback* aRequest)
{
ALOG_BRIDGE("AndroidBridge::SendMessage");
uint32_t requestId;
if (!QueueSmsRequest(aRequest, &requestId))
return;
GeckoAppShell::SendMessageWrapper(aNumber, aMessage, requestId);
}
void
AndroidBridge::GetMessage(int32_t aMessageId, nsIMobileMessageCallback* aRequest)
{
ALOG_BRIDGE("AndroidBridge::GetMessage");
uint32_t requestId;
if (!QueueSmsRequest(aRequest, &requestId))
return;
GeckoAppShell::GetMessageWrapper(aMessageId, requestId);
}
void
AndroidBridge::DeleteMessage(int32_t aMessageId, nsIMobileMessageCallback* aRequest)
{
ALOG_BRIDGE("AndroidBridge::DeleteMessage");
uint32_t requestId;
if (!QueueSmsRequest(aRequest, &requestId))
return;
GeckoAppShell::DeleteMessageWrapper(aMessageId, requestId);
}
void
AndroidBridge::CreateMessageList(const dom::mobilemessage::SmsFilterData& aFilter, bool aReverse,
nsIMobileMessageCallback* aRequest)
{
ALOG_BRIDGE("AndroidBridge::CreateMessageList");
JNIEnv *env = GetJNIEnv();
uint32_t requestId;
if (!QueueSmsRequest(aRequest, &requestId))
return;
AutoLocalJNIFrame jniFrame(env, 2);
jobjectArray numbers =
(jobjectArray)env->NewObjectArray(aFilter.numbers().Length(),
jStringClass,
NewJavaString(&jniFrame, EmptyString()));
for (uint32_t i = 0; i < aFilter.numbers().Length(); ++i) {
jstring elem = NewJavaString(&jniFrame, aFilter.numbers()[i]);
env->SetObjectArrayElement(numbers, i, elem);
env->DeleteLocalRef(elem);
}
int64_t startDate = aFilter.hasStartDate() ? aFilter.startDate() : -1;
int64_t endDate = aFilter.hasEndDate() ? aFilter.endDate() : -1;
GeckoAppShell::CreateMessageListWrapper(startDate, endDate,
ObjectArray::Ref::From(numbers),
aFilter.numbers().Length(),
aFilter.delivery(),
aFilter.hasRead(), aFilter.read(),
aFilter.threadId(),
aReverse, requestId);
}
void
AndroidBridge::GetNextMessageInList(int32_t aListId, nsIMobileMessageCallback* aRequest)
{
ALOG_BRIDGE("AndroidBridge::GetNextMessageInList");
uint32_t requestId;
if (!QueueSmsRequest(aRequest, &requestId))
return;
GeckoAppShell::GetNextMessageInListWrapper(aListId, requestId);
}
bool
AndroidBridge::QueueSmsRequest(nsIMobileMessageCallback* aRequest, uint32_t* aRequestIdOut)
{
MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
MOZ_ASSERT(aRequest && aRequestIdOut);
const uint32_t length = mSmsRequests.Length();
for (uint32_t i = 0; i < length; i++) {
if (!(mSmsRequests)[i]) {
(mSmsRequests)[i] = aRequest;
*aRequestIdOut = i;
return true;
}
}
mSmsRequests.AppendElement(aRequest);
// After AppendElement(), previous `length` points to the new tail element.
*aRequestIdOut = length;
return true;
}
already_AddRefed<nsIMobileMessageCallback>
AndroidBridge::DequeueSmsRequest(uint32_t aRequestId)
{
MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
MOZ_ASSERT(aRequestId < mSmsRequests.Length());
if (aRequestId >= mSmsRequests.Length()) {
return nullptr;
}
return mSmsRequests[aRequestId].forget();
}
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 = GeckoAppShell::GetCurrentNetworkInformationWrapper();
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);
}
void *
AndroidBridge::LockBitmap(jobject bitmap)
{
JNIEnv *env = GetJNIEnv();
int err;
void *buf;
if ((err = AndroidBitmap_lockPixels(env, bitmap, &buf)) != 0) {
ALOG_BRIDGE("AndroidBitmap_lockPixels failed! (error %d)", err);
buf = nullptr;
}
return buf;
}
void
AndroidBridge::UnlockBitmap(jobject bitmap)
{
JNIEnv *env = GetJNIEnv();
int err;
if ((err = AndroidBitmap_unlockPixels(env, bitmap)) != 0)
ALOG_BRIDGE("AndroidBitmap_unlockPixels failed! (error %d)", err);
}
bool
AndroidBridge::HasNativeWindowAccess()
{
OpenGraphicsLibraries();
// We have a fallback hack in place, so return true if that will work as well
return mHasNativeWindowAccess || mHasNativeWindowFallback;
}
void*
AndroidBridge::AcquireNativeWindow(JNIEnv* aEnv, jobject aSurface)
{
OpenGraphicsLibraries();
if (mHasNativeWindowAccess)
return ANativeWindow_fromSurface(aEnv, aSurface);
if (mHasNativeWindowFallback)
return GetNativeSurface(aEnv, aSurface);
return nullptr;
}
void
AndroidBridge::ReleaseNativeWindow(void *window)
{
if (!window)
return;
if (mHasNativeWindowAccess)
ANativeWindow_release(window);
// XXX: we don't ref the pointer we get from the fallback (GetNativeSurface), so we
// have nothing to do here. We should probably ref it.
}
IntSize
AndroidBridge::GetNativeWindowSize(void* window)
{
if (!window || !ANativeWindow_getWidth || !ANativeWindow_getHeight) {
return IntSize(0, 0);
}
return IntSize(ANativeWindow_getWidth(window), ANativeWindow_getHeight(window));
}
void*
AndroidBridge::AcquireNativeWindowFromSurfaceTexture(JNIEnv* aEnv, jobject aSurfaceTexture)
{
OpenGraphicsLibraries();
if (mHasNativeWindowAccess && ANativeWindow_fromSurfaceTexture)
return ANativeWindow_fromSurfaceTexture(aEnv, aSurfaceTexture);
if (mHasNativeWindowAccess && android_SurfaceTexture_getNativeWindow) {
android::sp<AndroidRefable> window = android_SurfaceTexture_getNativeWindow(aEnv, aSurfaceTexture);
return window.get();
}
return nullptr;
}
void
AndroidBridge::ReleaseNativeWindowForSurfaceTexture(void *window)
{
if (!window)
return;
// FIXME: we don't ref the pointer we get, so nothing to do currently. We should ref it.
}
bool
AndroidBridge::LockWindow(void *window, unsigned char **bits, int *width, int *height, int *format, int *stride)
{
/* Copied from native_window.h in Android NDK (platform-9) */
typedef struct ANativeWindow_Buffer {
// The number of pixels that are show horizontally.
int32_t width;
// The number of pixels that are shown vertically.
int32_t height;
// The number of *pixels* that a line in the buffer takes in
// memory. This may be >= width.
int32_t stride;
// The format of the buffer. One of WINDOW_FORMAT_*
int32_t format;
// The actual bits.
void* bits;
// Do not touch.
uint32_t reserved[6];
} ANativeWindow_Buffer;
// Very similar to the above, but the 'usage' field is included. We use this
// in the fallback case when NDK support is not available
struct SurfaceInfo {
uint32_t w;
uint32_t h;
uint32_t s;
uint32_t usage;
uint32_t format;
unsigned char* bits;
uint32_t reserved[2];
};
int err;
*bits = nullptr;
*width = *height = *format = 0;
if (mHasNativeWindowAccess) {
ANativeWindow_Buffer buffer;
if ((err = ANativeWindow_lock(window, (void*)&buffer, nullptr)) != 0) {
ALOG_BRIDGE("ANativeWindow_lock failed! (error %d)", err);
return false;
}
*bits = (unsigned char*)buffer.bits;
*width = buffer.width;
*height = buffer.height;
*format = buffer.format;
*stride = buffer.stride;
} else if (mHasNativeWindowFallback) {
SurfaceInfo info;
if ((err = Surface_lock(window, &info, nullptr, true)) != 0) {
ALOG_BRIDGE("Surface_lock failed! (error %d)", err);
return false;
}
*bits = info.bits;
*width = info.w;
*height = info.h;
*format = info.format;
*stride = info.s;
} else return false;
return true;
}
jobject
AndroidBridge::GetGlobalContextRef() {
if (sGlobalContext) {
return sGlobalContext;
}
JNIEnv* const env = GetJNIForThread();
AutoLocalJNIFrame jniFrame(env, 4);
auto context = GeckoAppShell::GetContext();
if (!context) {
ALOG_BRIDGE("%s: Could not GetContext()", __FUNCTION__);
return 0;
}
jclass contextClass = env->FindClass("android/content/Context");
if (!contextClass) {
ALOG_BRIDGE("%s: Could not find Context class.", __FUNCTION__);
return 0;
}
jmethodID mid = env->GetMethodID(contextClass, "getApplicationContext",
"()Landroid/content/Context;");
if (!mid) {
ALOG_BRIDGE("%s: Could not find getApplicationContext.", __FUNCTION__);
return 0;
}
jobject appContext = env->CallObjectMethod(context.Get(), mid);
if (!appContext) {
ALOG_BRIDGE("%s: getApplicationContext failed.", __FUNCTION__);
return 0;
}
sGlobalContext = env->NewGlobalRef(appContext);
MOZ_ASSERT(sGlobalContext);
return sGlobalContext;
}
bool
AndroidBridge::UnlockWindow(void* window)
{
int err;
if (!HasNativeWindowAccess())
return false;
if (mHasNativeWindowAccess && (err = ANativeWindow_unlockAndPost(window)) != 0) {
ALOG_BRIDGE("ANativeWindow_unlockAndPost failed! (error %d)", err);
return false;
} else if (mHasNativeWindowFallback && (err = Surface_unlockAndPost(window)) != 0) {
ALOG_BRIDGE("Surface_unlockAndPost failed! (error %d)", err);
return false;
}
return true;
}
void
AndroidBridge::SetFirstPaintViewport(const LayerIntPoint& aOffset, const CSSToLayerScale& aZoom, const CSSRect& aCssPageRect)
{
if (!mLayerClient) {
return;
}
mLayerClient->SetFirstPaintViewport(float(aOffset.x), float(aOffset.y), aZoom.scale,
aCssPageRect.x, aCssPageRect.y, aCssPageRect.XMost(), aCssPageRect.YMost());
}
void
AndroidBridge::SetPageRect(const CSSRect& aCssPageRect)
{
if (!mLayerClient) {
return;
}
mLayerClient->SetPageRect(aCssPageRect.x, aCssPageRect.y,
aCssPageRect.XMost(), aCssPageRect.YMost());
}
void
AndroidBridge::SyncViewportInfo(const LayerIntRect& aDisplayPort, const CSSToLayerScale& aDisplayResolution,
bool aLayersUpdated, ParentLayerPoint& aScrollOffset, CSSToParentLayerScale& aScale,
LayerMargin& aFixedLayerMargins, ScreenPoint& aOffset)
{
if (!mLayerClient) {
ALOG_BRIDGE("Exceptional Exit: %s", __PRETTY_FUNCTION__);
return;
}
ViewTransform::LocalRef viewTransform = mLayerClient->SyncViewportInfo(
aDisplayPort.x, aDisplayPort.y,
aDisplayPort.width, aDisplayPort.height,
aDisplayResolution.scale, aLayersUpdated);
MOZ_ASSERT(viewTransform, "No view transform object!");
aScrollOffset = ParentLayerPoint(viewTransform->X(), viewTransform->Y());
aScale.scale = viewTransform->Scale();
aFixedLayerMargins.top = viewTransform->FixedLayerMarginTop();
aFixedLayerMargins.right = viewTransform->FixedLayerMarginRight();
aFixedLayerMargins.bottom = viewTransform->FixedLayerMarginBottom();
aFixedLayerMargins.left = viewTransform->FixedLayerMarginLeft();
aOffset.x = viewTransform->OffsetX();
aOffset.y = viewTransform->OffsetY();
}
void AndroidBridge::SyncFrameMetrics(const ParentLayerPoint& aScrollOffset, float aZoom, const CSSRect& aCssPageRect,
bool aLayersUpdated, const CSSRect& aDisplayPort, const CSSToLayerScale& aDisplayResolution,
bool aIsFirstPaint, LayerMargin& aFixedLayerMargins, ScreenPoint& aOffset)
{
if (!mLayerClient) {
ALOG_BRIDGE("Exceptional Exit: %s", __PRETTY_FUNCTION__);
return;
}
// convert the displayport rect from scroll-relative CSS pixels to document-relative device pixels
LayerRect dpUnrounded = aDisplayPort * aDisplayResolution;
dpUnrounded += LayerPoint::FromUnknownPoint(aScrollOffset.ToUnknownPoint());
LayerIntRect dp = gfx::RoundedToInt(dpUnrounded);
ViewTransform::LocalRef viewTransform = mLayerClient->SyncFrameMetrics(
aScrollOffset.x, aScrollOffset.y, aZoom,
aCssPageRect.x, aCssPageRect.y, aCssPageRect.XMost(), aCssPageRect.YMost(),
aLayersUpdated, dp.x, dp.y, dp.width, dp.height, aDisplayResolution.scale,
aIsFirstPaint);
MOZ_ASSERT(viewTransform, "No view transform object!");
aFixedLayerMargins.top = viewTransform->FixedLayerMarginTop();
aFixedLayerMargins.right = viewTransform->FixedLayerMarginRight();
aFixedLayerMargins.bottom = viewTransform->FixedLayerMarginBottom();
aFixedLayerMargins.left = viewTransform->FixedLayerMarginLeft();
aOffset.x = viewTransform->OffsetX();
aOffset.y = viewTransform->OffsetY();
}
AndroidBridge::AndroidBridge()
: mLayerClient(nullptr),
mPresentationWindow(nullptr),
mPresentationSurface(nullptr)
{
}
AndroidBridge::~AndroidBridge()
{
}
/* Implementation file */
NS_IMPL_ISUPPORTS(nsAndroidBridge, nsIAndroidBridge)
nsAndroidBridge::nsAndroidBridge()
{
}
nsAndroidBridge::~nsAndroidBridge()
{
}
/* void handleGeckoEvent (in AString message); */
NS_IMETHODIMP nsAndroidBridge::HandleGeckoMessage(JS::HandleValue val,
JSContext *cx)
{
if (val.isObject()) {
JS::RootedObject object(cx, &val.toObject());
AndroidBridge::Bridge()->HandleGeckoMessage(cx, object);
return NS_OK;
}
// Now handle legacy JSON messages.
if (!val.isString()) {
return NS_ERROR_INVALID_ARG;
}
JS::RootedString jsonStr(cx, val.toString());
JS::RootedValue jsonVal(cx);
if (!JS_ParseJSON(cx, jsonStr, &jsonVal) || !jsonVal.isObject()) {
return NS_ERROR_INVALID_ARG;
}
// Spit out a warning before sending the message.
nsContentUtils::ReportToConsoleNonLocalized(
NS_LITERAL_STRING("Use of JSON is deprecated. "
"Please pass Javascript objects directly to handleGeckoMessage."),
nsIScriptError::warningFlag,
NS_LITERAL_CSTRING("nsIAndroidBridge"),
nullptr);
JS::RootedObject object(cx, &jsonVal.toObject());
AndroidBridge::Bridge()->HandleGeckoMessage(cx, object);
return NS_OK;
}
/* nsIAndroidDisplayport getDisplayPort(in boolean aPageSizeUpdate, in boolean isBrowserContentDisplayed, in int32_t tabId, in nsIAndroidViewport metrics); */
NS_IMETHODIMP nsAndroidBridge::GetDisplayPort(bool aPageSizeUpdate, bool aIsBrowserContentDisplayed, int32_t tabId, nsIAndroidViewport* metrics, nsIAndroidDisplayport** displayPort)
{
AndroidBridge::Bridge()->GetDisplayPort(aPageSizeUpdate, aIsBrowserContentDisplayed, tabId, metrics, displayPort);
return NS_OK;
}
/* void displayedDocumentChanged(); */
NS_IMETHODIMP nsAndroidBridge::ContentDocumentChanged()
{
AndroidBridge::Bridge()->ContentDocumentChanged();
return NS_OK;
}
/* boolean isContentDocumentDisplayed(); */
NS_IMETHODIMP nsAndroidBridge::IsContentDocumentDisplayed(bool *aRet)
{
*aRet = AndroidBridge::Bridge()->IsContentDocumentDisplayed();
return NS_OK;
}
// DO NOT USE THIS unless you need to access JNI from
// non-main threads. This is probably not what you want.
// Questions, ask blassey or dougt.
static void
JavaThreadDetachFunc(void *arg)
{
JNIEnv *env = (JNIEnv*) arg;
MOZ_ASSERT(env, "No JNIEnv on Gecko thread");
if (!env) {
return;
}
JavaVM *vm = nullptr;
env->GetJavaVM(&vm);
MOZ_ASSERT(vm, "No JavaVM on Gecko thread");
if (!vm) {
return;
}
vm->DetachCurrentThread();
}
uint32_t
AndroidBridge::GetScreenOrientation()
{
ALOG_BRIDGE("AndroidBridge::GetScreenOrientation");
int16_t orientation = GeckoAppShell::GetScreenOrientationWrapper();
if (!orientation)
return dom::eScreenOrientation_None;
return static_cast<dom::ScreenOrientation>(orientation);
}
void
AndroidBridge::ScheduleComposite()
{
nsWindow::ScheduleComposite();
}
nsresult
AndroidBridge::GetProxyForURI(const nsACString & aSpec,
const nsACString & aScheme,
const nsACString & aHost,
const int32_t aPort,
nsACString & aResult)
{
if (!HasEnv()) {
return NS_ERROR_FAILURE;
}
auto jstrRet = GeckoAppShell::GetProxyForURIWrapper(aSpec, aScheme, aHost, aPort);
if (!jstrRet)
return NS_ERROR_FAILURE;
aResult = nsCString(jstrRet);
return NS_OK;
}
bool
AndroidBridge::PumpMessageLoop()
{
JNIEnv* const env = GetJNIEnv();
if (mMessageQueueMessages) {
auto msg = 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 = Object::LocalRef::Adopt(
env, env->CallObjectMethod(mMessageQueue.Get(), mMessageQueueNext));
if (!msg) {
return false;
}
return GeckoAppShell::PumpMessageLoop(msg);
}
/* attribute nsIAndroidBrowserApp browserApp; */
NS_IMETHODIMP nsAndroidBridge::GetBrowserApp(nsIAndroidBrowserApp * *aBrowserApp)
{
if (nsAppShell::gAppShell)
nsAppShell::gAppShell->GetBrowserApp(aBrowserApp);
return NS_OK;
}
NS_IMETHODIMP nsAndroidBridge::SetBrowserApp(nsIAndroidBrowserApp *aBrowserApp)
{
if (nsAppShell::gAppShell)
nsAppShell::gAppShell->SetBrowserApp(aBrowserApp);
return NS_OK;
}
void
AndroidBridge::AddPluginView(jobject view, const LayoutDeviceRect& rect, bool isFullScreen) {
nsWindow* win = nsWindow::TopWindow();
if (!win)
return;
CSSRect cssRect = rect / win->GetDefaultScale();
GeckoAppShell::AddPluginViewWrapper(Object::Ref::From(view), cssRect.x, cssRect.y,
cssRect.width, cssRect.height, isFullScreen);
}
extern "C"
__attribute__ ((visibility("default")))
jobject JNICALL
Java_org_mozilla_gecko_GeckoAppShell_allocateDirectBuffer(JNIEnv *env, jclass, jlong size);
bool
AndroidBridge::GetThreadNameJavaProfiling(uint32_t aThreadId, nsCString & aResult)
{
auto jstrThreadName = GeckoJavaSampler::GetThreadNameJavaProfilingWrapper(aThreadId);
if (!jstrThreadName)
return false;
aResult = nsCString(jstrThreadName);
return true;
}
bool
AndroidBridge::GetFrameNameJavaProfiling(uint32_t aThreadId, uint32_t aSampleId,
uint32_t aFrameId, nsCString & aResult)
{
auto jstrSampleName = GeckoJavaSampler::GetFrameNameJavaProfilingWrapper
(aThreadId, aSampleId, aFrameId);
if (!jstrSampleName)
return false;
aResult = nsCString(jstrSampleName);
return true;
}
static float
GetScaleFactor(nsPresContext* aPresContext) {
nsIPresShell* presShell = aPresContext->PresShell();
LayoutDeviceToLayerScale cumulativeResolution(presShell->GetCumulativeResolution());
return cumulativeResolution.scale;
}
nsresult
AndroidBridge::CaptureZoomedView(nsIDOMWindow *window, nsIntRect zoomedViewRect, Object::Param buffer,
float zoomFactor) {
nsresult rv;
if (!buffer)
return NS_ERROR_FAILURE;
nsCOMPtr <nsIDOMWindowUtils> utils = do_GetInterface(window);
if (!utils)
return NS_ERROR_FAILURE;
JNIEnv* env = GetJNIEnv();
AutoLocalJNIFrame jniFrame(env, 0);
nsCOMPtr <nsPIDOMWindow> win = do_QueryInterface(window);
if (!win) {
return NS_ERROR_FAILURE;
}
nsRefPtr <nsPresContext> presContext;
nsIDocShell* docshell = win->GetDocShell();
if (docshell) {
docshell->GetPresContext(getter_AddRefs(presContext));
}
if (!presContext) {
return NS_ERROR_FAILURE;
}
nsCOMPtr <nsIPresShell> presShell = presContext->PresShell();
float scaleFactor = GetScaleFactor(presContext) ;
nscolor bgColor = NS_RGB(255, 255, 255);
uint32_t renderDocFlags = (nsIPresShell::RENDER_IGNORE_VIEWPORT_SCROLLING | nsIPresShell::RENDER_DOCUMENT_RELATIVE);
nsRect r(presContext->DevPixelsToAppUnits(zoomedViewRect.x / scaleFactor),
presContext->DevPixelsToAppUnits(zoomedViewRect.y / scaleFactor ),
presContext->DevPixelsToAppUnits(zoomedViewRect.width / scaleFactor ),
presContext->DevPixelsToAppUnits(zoomedViewRect.height / scaleFactor ));
bool is24bit = (GetScreenDepth() == 24);
SurfaceFormat format = is24bit ? SurfaceFormat::B8G8R8X8 : SurfaceFormat::R5G6B5;
gfxImageFormat iFormat = gfx::SurfaceFormatToImageFormat(format);
uint32_t stride = gfxASurface::FormatStrideForWidth(iFormat, zoomedViewRect.width);
uint8_t* data = static_cast<uint8_t*> (env->GetDirectBufferAddress(buffer.Get()));
if (!data) {
return NS_ERROR_FAILURE;
}
MOZ_ASSERT (gfxPlatform::GetPlatform()->SupportsAzureContentForType(BackendType::CAIRO),
"Need BackendType::CAIRO support");
RefPtr < DrawTarget > dt = Factory::CreateDrawTargetForData(
BackendType::CAIRO, data, IntSize(zoomedViewRect.width, zoomedViewRect.height), stride,
format);
if (!dt) {
ALOG_BRIDGE("Error creating DrawTarget");
return NS_ERROR_FAILURE;
}
nsRefPtr <gfxContext> context = new gfxContext(dt);
context->SetMatrix(context->CurrentMatrix().Scale(zoomFactor, zoomFactor));
rv = presShell->RenderDocument(r, renderDocFlags, bgColor, context);
if (is24bit) {
gfxUtils::ConvertBGRAtoRGBA(data, stride * zoomedViewRect.height);
}
LayerView::updateZoomedView(buffer);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult AndroidBridge::CaptureThumbnail(nsIDOMWindow *window, int32_t bufW, int32_t bufH, int32_t tabId, Object::Param buffer, bool &shouldStore)
{
nsresult rv;
float scale = 1.0;
if (!buffer)
return NS_ERROR_FAILURE;
// take a screenshot, as wide as possible, proportional to the destination size
nsCOMPtr<nsIDOMWindowUtils> utils = do_GetInterface(window);
if (!utils)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMClientRect> rect;
rv = utils->GetRootBounds(getter_AddRefs(rect));
NS_ENSURE_SUCCESS(rv, rv);
if (!rect)
return NS_ERROR_FAILURE;
float left, top, width, height;
rect->GetLeft(&left);
rect->GetTop(&top);
rect->GetWidth(&width);
rect->GetHeight(&height);
if (width == 0 || height == 0)
return NS_ERROR_FAILURE;
int32_t srcX = left;
int32_t srcY = top;
int32_t srcW;
int32_t srcH;
float aspectRatio = ((float) bufW) / bufH;
if (width / aspectRatio < height) {
srcW = width;
srcH = width / aspectRatio;
} else {
srcW = height * aspectRatio;
srcH = height;
}
JNIEnv* env = GetJNIEnv();
AutoLocalJNIFrame jniFrame(env, 0);
nsCOMPtr<nsPIDOMWindow> win = do_QueryInterface(window);
if (!win)
return NS_ERROR_FAILURE;
nsRefPtr<nsPresContext> presContext;
nsIDocShell* docshell = win->GetDocShell();
// Decide if callers should store this thumbnail for later use.
shouldStore = ShouldStoreThumbnail(docshell);
if (docshell) {
docshell->GetPresContext(getter_AddRefs(presContext));
}
if (!presContext)
return NS_ERROR_FAILURE;
nscolor bgColor = NS_RGB(255, 255, 255);
nsCOMPtr<nsIPresShell> presShell = presContext->PresShell();
uint32_t renderDocFlags = (nsIPresShell::RENDER_IGNORE_VIEWPORT_SCROLLING |
nsIPresShell::RENDER_DOCUMENT_RELATIVE);
nsRect r(nsPresContext::CSSPixelsToAppUnits(srcX / scale),
nsPresContext::CSSPixelsToAppUnits(srcY / scale),
nsPresContext::CSSPixelsToAppUnits(srcW / scale),
nsPresContext::CSSPixelsToAppUnits(srcH / scale));
bool is24bit = (GetScreenDepth() == 24);
uint32_t stride = bufW * (is24bit ? 4 : 2);
uint8_t* data = static_cast<uint8_t*>(env->GetDirectBufferAddress(buffer.Get()));
if (!data)
return NS_ERROR_FAILURE;
MOZ_ASSERT(gfxPlatform::GetPlatform()->SupportsAzureContentForType(BackendType::CAIRO),
"Need BackendType::CAIRO support");
RefPtr<DrawTarget> dt =
Factory::CreateDrawTargetForData(BackendType::CAIRO,
data,
IntSize(bufW, bufH),
stride,
is24bit ? SurfaceFormat::B8G8R8X8 :
SurfaceFormat::R5G6B5);
if (!dt) {
ALOG_BRIDGE("Error creating DrawTarget");
return NS_ERROR_FAILURE;
}
nsRefPtr<gfxContext> context = new gfxContext(dt);
context->SetMatrix(
context->CurrentMatrix().Scale(scale * bufW / srcW,
scale * bufH / srcH));
rv = presShell->RenderDocument(r, renderDocFlags, bgColor, context);
if (is24bit) {
gfxUtils::ConvertBGRAtoRGBA(data, stride * bufH);
}
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
void
AndroidBridge::GetDisplayPort(bool aPageSizeUpdate, bool aIsBrowserContentDisplayed, int32_t tabId, nsIAndroidViewport* metrics, nsIAndroidDisplayport** displayPort)
{
ALOG_BRIDGE("Enter: %s", __PRETTY_FUNCTION__);
if (!mLayerClient) {
ALOG_BRIDGE("Exceptional Exit: %s", __PRETTY_FUNCTION__);
return;
}
JNIEnv* const env = GetJNIEnv();
AutoLocalJNIFrame jniFrame(env, 1);
float x, y, width, height,
pageLeft, pageTop, pageRight, pageBottom,
cssPageLeft, cssPageTop, cssPageRight, cssPageBottom,
zoom;
metrics->GetX(&x);
metrics->GetY(&y);
metrics->GetWidth(&width);
metrics->GetHeight(&height);
metrics->GetPageLeft(&pageLeft);
metrics->GetPageTop(&pageTop);
metrics->GetPageRight(&pageRight);
metrics->GetPageBottom(&pageBottom);
metrics->GetCssPageLeft(&cssPageLeft);
metrics->GetCssPageTop(&cssPageTop);
metrics->GetCssPageRight(&cssPageRight);
metrics->GetCssPageBottom(&cssPageBottom);
metrics->GetZoom(&zoom);
auto jmetrics = ImmutableViewportMetrics::New(
pageLeft, pageTop, pageRight, pageBottom,
cssPageLeft, cssPageTop, cssPageRight, cssPageBottom,
x, y, x + width, y + height,
zoom);
DisplayPortMetrics::LocalRef displayPortMetrics = mLayerClient->GetDisplayPort(
aPageSizeUpdate, aIsBrowserContentDisplayed, tabId, jmetrics);
if (!displayPortMetrics) {
ALOG_BRIDGE("Exceptional Exit: %s", __PRETTY_FUNCTION__);
return;
}
AndroidRectF rect(env, displayPortMetrics->MPosition().Get());
float resolution = displayPortMetrics->Resolution();
*displayPort = new nsAndroidDisplayport(rect, resolution);
(*displayPort)->AddRef();
ALOG_BRIDGE("Exit: %s", __PRETTY_FUNCTION__);
}
void
AndroidBridge::ContentDocumentChanged()
{
if (!mLayerClient) {
return;
}
mLayerClient->ContentDocumentChanged();
}
bool
AndroidBridge::IsContentDocumentDisplayed()
{
if (!mLayerClient)
return false;
return mLayerClient->IsContentDocumentDisplayed();
}
bool
AndroidBridge::ProgressiveUpdateCallback(bool aHasPendingNewThebesContent,
const LayerRect& aDisplayPort, float aDisplayResolution,
bool aDrawingCritical, ParentLayerPoint& aScrollOffset,
CSSToParentLayerScale& aZoom)
{
if (!mLayerClient) {
ALOG_BRIDGE("Exceptional Exit: %s", __PRETTY_FUNCTION__);
return false;
}
ProgressiveUpdateData::LocalRef progressiveUpdateData =
mLayerClient->ProgressiveUpdateCallback(aHasPendingNewThebesContent,
(float)aDisplayPort.x,
(float)aDisplayPort.y,
(float)aDisplayPort.width,
(float)aDisplayPort.height,
aDisplayResolution,
!aDrawingCritical);
aScrollOffset.x = progressiveUpdateData->X();
aScrollOffset.y = progressiveUpdateData->Y();
aZoom.scale = progressiveUpdateData->Scale();
return progressiveUpdateData->Abort();
}
void
AndroidBridge::PostTaskToUiThread(Task* aTask, int aDelayMs)
{
// add the new task into the mDelayedTaskQueue, sorted with
// the earliest task first in the queue
DelayedTask* newTask = new DelayedTask(aTask, aDelayMs);
uint32_t i = 0;
while (i < mDelayedTaskQueue.Length()) {
if (newTask->IsEarlierThan(mDelayedTaskQueue[i])) {
mDelayedTaskQueue.InsertElementAt(i, newTask);
break;
}
i++;
}
if (i == mDelayedTaskQueue.Length()) {
// this new task will run after all the existing tasks in the queue
mDelayedTaskQueue.AppendElement(newTask);
}
if (i == 0) {
// if we're inserting it at the head of the queue, notify Java because
// we need to get a callback at an earlier time than the last scheduled
// callback
GeckoAppShell::RequestUiThreadCallback((int64_t)aDelayMs);
}
}
int64_t
AndroidBridge::RunDelayedUiThreadTasks()
{
while (mDelayedTaskQueue.Length() > 0) {
DelayedTask* nextTask = mDelayedTaskQueue[0];
int64_t timeLeft = nextTask->MillisecondsToRunTime();
if (timeLeft > 0) {
// this task (and therefore all remaining tasks)
// have not yet reached their runtime. return the
// time left until we should be called again
return timeLeft;
}
// we have a delayed task to run. extract it from
// the wrapper and free the wrapper
mDelayedTaskQueue.RemoveElementAt(0);
Task* task = nextTask->GetTask();
delete nextTask;
task->Run();
}
return -1;
}
void*
AndroidBridge::GetPresentationWindow()
{
return mPresentationWindow;
}
void
AndroidBridge::SetPresentationWindow(void* aPresentationWindow)
{
if (mPresentationWindow) {
const bool wasAlreadyPaused = nsWindow::IsCompositionPaused();
if (!wasAlreadyPaused) {
nsWindow::SchedulePauseComposition();
}
mPresentationWindow = aPresentationWindow;
if (mPresentationSurface) {
// destroy the egl surface!
// The compositor is paused so it should be okay to destroy
// the surface here.
mozilla::gl::GLContextProvider::DestroyEGLSurface(mPresentationSurface);
mPresentationSurface = nullptr;
}
if (!wasAlreadyPaused) {
nsWindow::ScheduleResumeComposition();
}
}
else {
mPresentationWindow = aPresentationWindow;
}
}
EGLSurface
AndroidBridge::GetPresentationSurface()
{
return mPresentationSurface;
}
void
AndroidBridge::SetPresentationSurface(EGLSurface aPresentationSurface)
{
mPresentationSurface = aPresentationSurface;
}
Object::LocalRef AndroidBridge::ChannelCreate(Object::Param stream) {
JNIEnv* const env = GetJNIForThread();
auto rv = Object::LocalRef::Adopt(env, env->CallStaticObjectMethod(
sBridge->jReadableByteChannel, sBridge->jChannelCreate, stream.Get()));
HandleUncaughtException(env);
return rv;
}
void AndroidBridge::InputStreamClose(Object::Param obj) {
JNIEnv* const env = GetJNIForThread();
env->CallVoidMethod(obj.Get(), sBridge->jClose);
HandleUncaughtException(env);
}
uint32_t AndroidBridge::InputStreamAvailable(Object::Param obj) {
JNIEnv* const env = GetJNIForThread();
auto rv = env->CallIntMethod(obj.Get(), sBridge->jAvailable);
HandleUncaughtException(env);
return rv;
}
nsresult AndroidBridge::InputStreamRead(Object::Param obj, char *aBuf, uint32_t aCount, uint32_t *aRead) {
JNIEnv* const env = GetJNIForThread();
auto arr = Object::LocalRef::Adopt(env, env->NewDirectByteBuffer(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;
}
nsresult AndroidBridge::GetExternalPublicDirectory(const nsAString& aType, nsAString& aPath) {
auto path = GeckoAppShell::GetExternalPublicDirectory(aType);
if (!path) {
return NS_ERROR_NOT_AVAILABLE;
}
aPath = nsString(path);
return NS_OK;
}
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