mirror of
https://github.com/mozilla/gecko-dev.git
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008886b9a1
When getting nsAppShell from another thread, there could be a race with nsAppShell being destroyed on the main thread. This patch makes the raw nsAppShell pointer only accessible from the main thread, and use a static mutex to coordinate accessing nsAppShell from other threads.
390 lines
12 KiB
C++
390 lines
12 KiB
C++
/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/Hal.h"
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#include "nsIFile.h"
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#include "nsString.h"
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#include "AndroidBridge.h"
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#include "AndroidContentController.h"
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#include "AndroidGraphicBuffer.h"
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#include <jni.h>
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#include <pthread.h>
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#include <dlfcn.h>
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#include <stdio.h>
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#include <unistd.h>
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#include "nsAppShell.h"
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#include "nsWindow.h"
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#include <android/log.h>
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#include "nsIObserverService.h"
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#include "mozilla/Services.h"
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#include "nsThreadUtils.h"
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#ifdef MOZ_CRASHREPORTER
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#include "nsICrashReporter.h"
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#include "nsExceptionHandler.h"
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#endif
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#include "mozilla/unused.h"
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#include "mozilla/MathAlgorithms.h"
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#include "mozilla/UniquePtr.h"
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#include "mozilla/layers/APZCTreeManager.h"
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#include "nsPluginInstanceOwner.h"
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#include "AndroidSurfaceTexture.h"
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#include "nsMemoryPressure.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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using namespace mozilla::layers;
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using namespace mozilla::widget;
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using namespace mozilla::widget::android;
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/* Forward declare all the JNI methods as extern "C" */
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extern "C" {
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/*
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* Incoming JNI methods
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*/
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_registerJavaUiThread(JNIEnv *jenv, jclass jc)
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{
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AndroidBridge::RegisterJavaUiThread();
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_notifyGeckoOfEvent(JNIEnv *jenv, jclass jc, jobject event)
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{
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// poke the appshell
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nsAppShell::PostEvent(AndroidGeckoEvent::MakeFromJavaObject(jenv, event));
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_notifyGeckoObservers(JNIEnv *aEnv, jclass,
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jstring aTopic, jstring aData)
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{
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if (!NS_IsMainThread()) {
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jni::ThrowException(aEnv,
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"java/lang/IllegalThreadStateException", "Not on Gecko main thread");
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return;
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}
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nsCOMPtr<nsIObserverService> obsServ =
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mozilla::services::GetObserverService();
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if (!obsServ) {
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jni::ThrowException(aEnv,
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"java/lang/IllegalStateException", "No observer service");
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return;
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}
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const nsJNICString topic(aTopic, aEnv);
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const nsJNIString data(aData, aEnv);
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obsServ->NotifyObservers(nullptr, topic.get(), data.get());
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}
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NS_EXPORT jlong JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_runUiThreadCallback(JNIEnv* env, jclass)
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{
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if (!AndroidBridge::Bridge()) {
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return -1;
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}
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return AndroidBridge::Bridge()->RunDelayedUiThreadTasks();
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_reportJavaCrash(JNIEnv *jenv, jclass, jstring jStackTrace)
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{
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#ifdef MOZ_CRASHREPORTER
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const nsJNICString stackTrace(jStackTrace, jenv);
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if (NS_WARN_IF(NS_FAILED(CrashReporter::AnnotateCrashReport(
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NS_LITERAL_CSTRING("JavaStackTrace"), stackTrace)))) {
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// Only crash below if crash reporter is initialized and annotation succeeded.
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// Otherwise try other means of reporting the crash in Java.
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return;
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}
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#endif // MOZ_CRASHREPORTER
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MOZ_CRASH("Uncaught Java exception");
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_notifyBatteryChange(JNIEnv* jenv, jclass,
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jdouble aLevel,
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jboolean aCharging,
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jdouble aRemainingTime)
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{
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class NotifyBatteryChangeRunnable : public nsRunnable {
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public:
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NotifyBatteryChangeRunnable(double aLevel, bool aCharging, double aRemainingTime)
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: mLevel(aLevel)
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, mCharging(aCharging)
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, mRemainingTime(aRemainingTime)
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{}
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NS_IMETHODIMP Run() {
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hal::NotifyBatteryChange(hal::BatteryInformation(mLevel, mCharging, mRemainingTime));
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return NS_OK;
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}
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private:
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double mLevel;
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bool mCharging;
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double mRemainingTime;
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};
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nsCOMPtr<nsIRunnable> runnable = new NotifyBatteryChangeRunnable(aLevel, aCharging, aRemainingTime);
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NS_DispatchToMainThread(runnable);
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_invalidateAndScheduleComposite(JNIEnv*, jclass)
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{
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nsWindow::InvalidateAndScheduleComposite();
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}
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NS_EXPORT float JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_computeRenderIntegrity(JNIEnv*, jclass)
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{
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return nsWindow::ComputeRenderIntegrity();
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}
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#define MAX_LOCK_ATTEMPTS 10
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static bool LockWindowWithRetry(void* window, unsigned char** bits, int* width, int* height, int* format, int* stride)
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{
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int count = 0;
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while (count < MAX_LOCK_ATTEMPTS) {
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if (AndroidBridge::Bridge()->LockWindow(window, bits, width, height, format, stride))
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return true;
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count++;
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usleep(500);
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}
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return false;
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}
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NS_EXPORT jobject JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_getSurfaceBits(JNIEnv* jenv, jclass, jobject surface)
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{
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static jclass jSurfaceBitsClass = nullptr;
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static jmethodID jSurfaceBitsCtor = 0;
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static jfieldID jSurfaceBitsWidth, jSurfaceBitsHeight, jSurfaceBitsFormat, jSurfaceBitsBuffer;
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jobject surfaceBits = nullptr;
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unsigned char* bitsCopy = nullptr;
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int dstWidth, dstHeight, dstSize;
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void* window = AndroidBridge::Bridge()->AcquireNativeWindow(jenv, surface);
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if (!window)
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return nullptr;
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unsigned char* bits;
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int srcWidth, srcHeight, format, srcStride;
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// So we lock/unlock once here in order to get whatever is currently the front buffer. It sucks.
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if (!LockWindowWithRetry(window, &bits, &srcWidth, &srcHeight, &format, &srcStride))
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return nullptr;
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AndroidBridge::Bridge()->UnlockWindow(window);
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// This is lock will result in the front buffer, since the last unlock rotated it to the back. Probably.
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if (!LockWindowWithRetry(window, &bits, &srcWidth, &srcHeight, &format, &srcStride))
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return nullptr;
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// These are from android.graphics.PixelFormat
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int bpp;
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switch (format) {
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case 1: // RGBA_8888
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bpp = 4;
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break;
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case 4: // RGB_565
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bpp = 2;
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break;
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default:
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goto cleanup;
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}
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dstWidth = mozilla::RoundUpPow2(srcWidth);
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dstHeight = mozilla::RoundUpPow2(srcHeight);
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dstSize = dstWidth * dstHeight * bpp;
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bitsCopy = (unsigned char*)malloc(dstSize);
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bzero(bitsCopy, dstSize);
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for (int i = 0; i < srcHeight; i++) {
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memcpy(bitsCopy + ((dstHeight - i - 1) * dstWidth * bpp), bits + (i * srcStride * bpp), srcStride * bpp);
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}
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if (!jSurfaceBitsClass) {
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jSurfaceBitsClass = (jclass)jenv->NewGlobalRef(jenv->FindClass("org/mozilla/gecko/SurfaceBits"));
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jSurfaceBitsCtor = jenv->GetMethodID(jSurfaceBitsClass, "<init>", "()V");
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jSurfaceBitsWidth = jenv->GetFieldID(jSurfaceBitsClass, "width", "I");
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jSurfaceBitsHeight = jenv->GetFieldID(jSurfaceBitsClass, "height", "I");
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jSurfaceBitsFormat = jenv->GetFieldID(jSurfaceBitsClass, "format", "I");
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jSurfaceBitsBuffer = jenv->GetFieldID(jSurfaceBitsClass, "buffer", "Ljava/nio/ByteBuffer;");
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}
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surfaceBits = jenv->NewObject(jSurfaceBitsClass, jSurfaceBitsCtor);
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jenv->SetIntField(surfaceBits, jSurfaceBitsWidth, dstWidth);
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jenv->SetIntField(surfaceBits, jSurfaceBitsHeight, dstHeight);
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jenv->SetIntField(surfaceBits, jSurfaceBitsFormat, format);
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jenv->SetObjectField(surfaceBits, jSurfaceBitsBuffer, jenv->NewDirectByteBuffer(bitsCopy, dstSize));
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cleanup:
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AndroidBridge::Bridge()->UnlockWindow(window);
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AndroidBridge::Bridge()->ReleaseNativeWindow(window);
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return surfaceBits;
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_addPresentationSurface(JNIEnv* jenv, jclass, jobject surface)
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{
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if (surface != NULL) {
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void* window = AndroidBridge::Bridge()->AcquireNativeWindow(jenv, surface);
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if (window) {
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AndroidBridge::Bridge()->SetPresentationWindow(window);
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}
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}
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_removePresentationSurface(JNIEnv* jenv, jclass, jobject surface)
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{
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void* window = AndroidBridge::Bridge()->GetPresentationWindow();
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if (window) {
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AndroidBridge::Bridge()->SetPresentationWindow(nullptr);
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AndroidBridge::Bridge()->ReleaseNativeWindow(window);
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}
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_onFullScreenPluginHidden(JNIEnv* jenv, jclass, jobject view)
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{
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class ExitFullScreenRunnable : public nsRunnable {
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public:
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ExitFullScreenRunnable(jobject view) : mView(view) {}
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NS_IMETHODIMP Run() {
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JNIEnv* const env = jni::GetGeckoThreadEnv();
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nsPluginInstanceOwner::ExitFullScreen(mView);
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env->DeleteGlobalRef(mView);
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return NS_OK;
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}
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private:
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jobject mView;
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};
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nsCOMPtr<nsIRunnable> runnable = new ExitFullScreenRunnable(jenv->NewGlobalRef(view));
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NS_DispatchToMainThread(runnable);
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_onSurfaceTextureFrameAvailable(JNIEnv* jenv, jclass, jobject surfaceTexture, jint id)
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{
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mozilla::gl::AndroidSurfaceTexture* st = mozilla::gl::AndroidSurfaceTexture::Find(id);
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if (!st) {
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__android_log_print(ANDROID_LOG_ERROR, "GeckoJNI", "Failed to find AndroidSurfaceTexture with id %d", id);
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return;
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}
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st->NotifyFrameAvailable();
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_GeckoAppShell_dispatchMemoryPressure(JNIEnv* jenv, jclass)
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{
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NS_DispatchMemoryPressure(MemPressure_New);
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_gfx_NativePanZoomController_abortAnimation(JNIEnv* env, jobject instance)
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{
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APZCTreeManager *controller = nsWindow::GetAPZCTreeManager();
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if (controller) {
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// TODO: Pass in correct values for presShellId and viewId.
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controller->CancelAnimation(ScrollableLayerGuid(nsWindow::RootLayerTreeId(), 0, 0));
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}
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_gfx_NativePanZoomController_init(JNIEnv* env, jobject instance)
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{
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if (!AndroidBridge::Bridge()) {
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return;
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}
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const auto& newRef = NativePanZoomController::Ref::From(instance);
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NativePanZoomController::LocalRef oldRef =
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AndroidContentController::SetNativePanZoomController(newRef);
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// MOZ_ASSERT(!oldRef, "Registering a new NPZC when we already have one");
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}
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NS_EXPORT jboolean JNICALL
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Java_org_mozilla_gecko_gfx_NativePanZoomController_handleTouchEvent(JNIEnv* env, jobject instance, jobject event)
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{
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APZCTreeManager *controller = nsWindow::GetAPZCTreeManager();
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if (!controller) {
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return false;
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}
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AndroidGeckoEvent* wrapper = AndroidGeckoEvent::MakeFromJavaObject(env, event);
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MultiTouchInput input = wrapper->MakeMultiTouchInput(nsWindow::TopWindow());
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delete wrapper;
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if (input.mType < 0) {
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return false;
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}
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ScrollableLayerGuid guid;
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uint64_t blockId;
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nsEventStatus status = controller->ReceiveInputEvent(input, &guid, &blockId);
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if (status != nsEventStatus_eConsumeNoDefault) {
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nsAppShell::PostEvent(AndroidGeckoEvent::MakeApzInputEvent(input, guid, blockId, status));
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}
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return true;
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_gfx_NativePanZoomController_handleMotionEvent(JNIEnv* env, jobject instance, jobject event)
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{
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// FIXME implement this
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_gfx_NativePanZoomController_destroy(JNIEnv* env, jobject instance)
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{
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if (!AndroidBridge::Bridge()) {
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return;
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}
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NativePanZoomController::LocalRef oldRef =
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AndroidContentController::SetNativePanZoomController(nullptr);
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MOZ_ASSERT(oldRef, "Clearing a non-existent NPZC");
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}
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NS_EXPORT jboolean JNICALL
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Java_org_mozilla_gecko_gfx_NativePanZoomController_getRedrawHint(JNIEnv* env, jobject instance)
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{
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// FIXME implement this
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return true;
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}
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NS_EXPORT void JNICALL
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Java_org_mozilla_gecko_gfx_NativePanZoomController_setIsLongpressEnabled(JNIEnv* env, jobject instance, jboolean isLongpressEnabled)
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{
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APZCTreeManager::SetLongTapEnabled(isLongpressEnabled);
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}
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}
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