The Tor Browser: dom/plugins/base/nsNPAPIPluginInstance.cpp@b8a032363ba2 (annotated)

dom/plugins/base/nsNPAPIPluginInstance.cpp@b8a032363ba2 (annotated)

dom/plugins/base/nsNPAPIPluginInstance.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* 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/DebugOnly.h"
 #ifdef MOZ_WIDGET_ANDROID
 // For ScreenOrientation.h and Hal.h
 #include "base/basictypes.h"
 #endif
 #include "prlog.h"
 #include "prmem.h"
 #include "nscore.h"
 #include "prenv.h"
 #include "nsNPAPIPluginInstance.h"
 #include "nsNPAPIPlugin.h"
 #include "nsNPAPIPluginStreamListener.h"
 #include "nsPluginHost.h"
 #include "nsPluginLogging.h"
 #include "nsContentUtils.h"
 #include "nsPluginInstanceOwner.h"
 #include "nsThreadUtils.h"
 #include "nsIDOMElement.h"
 #include "nsIDocument.h"
 #include "nsIDocShell.h"
 #include "nsIScriptGlobalObject.h"
 #include "nsIScriptContext.h"
 #include "nsDirectoryServiceDefs.h"
 #include "nsJSNPRuntime.h"
 #include "nsPluginStreamListenerPeer.h"
 #include "nsSize.h"
 #include "nsNetCID.h"
 #include "nsIContent.h"
 #include "nsVersionComparator.h"
 #include "mozilla/Preferences.h"
 #include "mozilla/unused.h"
 #include "nsILoadContext.h"
 using namespace mozilla;
 #ifdef MOZ_WIDGET_ANDROID
 #include "ANPBase.h"
 #include <android/log.h>
 #include "android_npapi.h"
 #include "mozilla/Mutex.h"
 #include "mozilla/CondVar.h"
 #include "AndroidBridge.h"
 #include "mozilla/dom/ScreenOrientation.h"
 #include "mozilla/Hal.h"
 #include "GLContextProvider.h"
 #include "GLContext.h"
 #include "TexturePoolOGL.h"
 #include "GLSharedHandleHelpers.h"
 using namespace mozilla::gl;
 typedef nsNPAPIPluginInstance::VideoInfo VideoInfo;
 class PluginEventRunnable : public nsRunnable
 {
 public:
   PluginEventRunnable(nsNPAPIPluginInstance* instance, ANPEvent* event)
     : mInstance(instance), mEvent(*event), mCanceled(false) {}
   virtual nsresult Run() {
     if (mCanceled)
       return NS_OK;
     mInstance->HandleEvent(&mEvent, nullptr);
     mInstance->PopPostedEvent(this);
     return NS_OK;
   }
   void Cancel() { mCanceled = true; }
 private:
   nsNPAPIPluginInstance* mInstance;
   ANPEvent mEvent;
   bool mCanceled;
 };
 static nsRefPtr<GLContext> sPluginContext = nullptr;
 static bool EnsureGLContext()
 {
   if (!sPluginContext) {
     gfxIntSize dummySize(16, 16);
     sPluginContext = GLContextProvider::CreateOffscreen(dummySize,
                                                         GLContext::SurfaceCaps::Any());
   }
   return sPluginContext != nullptr;
 }
 class SharedPluginTexture MOZ_FINAL {
 public:
   NS_INLINE_DECL_REFCOUNTING(SharedPluginTexture)
   SharedPluginTexture() : mLock("SharedPluginTexture.mLock")
   {
   }
   nsNPAPIPluginInstance::TextureInfo Lock()
   {
     if (!EnsureGLContext()) {
       mTextureInfo.mTexture = 0;
       return mTextureInfo;
     }
     if (!mTextureInfo.mTexture && sPluginContext->MakeCurrent()) {
       sPluginContext->fGenTextures(1, &mTextureInfo.mTexture);
     }
     mLock.Lock();
     return mTextureInfo;
   }
   void Release(nsNPAPIPluginInstance::TextureInfo& aTextureInfo)
   {
     mTextureInfo = aTextureInfo;
     mLock.Unlock();
   }
   SharedTextureHandle CreateSharedHandle()
   {
     MutexAutoLock lock(mLock);
     if (!EnsureGLContext())
       return 0;
     if (mTextureInfo.mWidth == 0 || mTextureInfo.mHeight == 0)
       return 0;
     SharedTextureHandle handle =
       gl::CreateSharedHandle(sPluginContext,
                              gl::SharedTextureShareType::SameProcess,
                              (void*)mTextureInfo.mTexture,
                              gl::SharedTextureBufferType::TextureID);
     // We want forget about this now, so delete the texture. Assigning it to zero
     // ensures that we create a new one in Lock()
     sPluginContext->fDeleteTextures(1, &mTextureInfo.mTexture);
     mTextureInfo.mTexture = 0;
     return handle;
   }
 private:
   // Private destructor, to discourage deletion outside of Release():
   ~SharedPluginTexture()
   {
   }
   nsNPAPIPluginInstance::TextureInfo mTextureInfo;
   Mutex mLock;
 };
 static std::map<NPP, nsNPAPIPluginInstance*> sPluginNPPMap;
 #endif
 using namespace mozilla;
 using namespace mozilla::plugins::parent;
 using namespace mozilla::layers;
 static NS_DEFINE_IID(kIOutputStreamIID, NS_IOUTPUTSTREAM_IID);
 NS_IMPL_ISUPPORTS0(nsNPAPIPluginInstance)
 nsNPAPIPluginInstance::nsNPAPIPluginInstance()
   :
     mDrawingModel(kDefaultDrawingModel),
 #ifdef MOZ_WIDGET_ANDROID
     mANPDrawingModel(0),
     mFullScreenOrientation(dom::eScreenOrientation_LandscapePrimary),
     mWakeLocked(false),
     mFullScreen(false),
     mInverted(false),
 #endif
     mRunning(NOT_STARTED),
     mWindowless(false),
     mTransparent(false),
     mCached(false),
     mUsesDOMForCursor(false),
     mInPluginInitCall(false),
     mPlugin(nullptr),
     mMIMEType(nullptr),
     mOwner(nullptr),
     mCurrentPluginEvent(nullptr)
 #ifdef MOZ_WIDGET_ANDROID
   , mOnScreen(true)
 #endif
   , mHaveJavaC2PJSObjectQuirk(false)
 {
   mNPP.pdata = nullptr;
   mNPP.ndata = this;
   PLUGIN_LOG(PLUGIN_LOG_BASIC, ("nsNPAPIPluginInstance ctor: this=%p\n",this));
 #ifdef MOZ_WIDGET_ANDROID
   sPluginNPPMap[&mNPP] = this;
 #endif
 }
 nsNPAPIPluginInstance::~nsNPAPIPluginInstance()
 {
   PLUGIN_LOG(PLUGIN_LOG_BASIC, ("nsNPAPIPluginInstance dtor: this=%p\n",this));
 #ifdef MOZ_WIDGET_ANDROID
   sPluginNPPMap.erase(&mNPP);
 #endif
   if (mMIMEType) {
     PR_Free((void *)mMIMEType);
     mMIMEType = nullptr;
   }
 }
 uint32_t nsNPAPIPluginInstance::gInUnsafePluginCalls = 0;
 void
 nsNPAPIPluginInstance::Destroy()
 {
   Stop();
   mPlugin = nullptr;
 #if MOZ_WIDGET_ANDROID
   if (mContentSurface)
     mContentSurface->SetFrameAvailableCallback(nullptr);
   mContentTexture = nullptr;
   mContentSurface = nullptr;
   std::map<void*, VideoInfo*>::iterator it;
   for (it = mVideos.begin(); it != mVideos.end(); it++) {
     it->second->mSurfaceTexture->SetFrameAvailableCallback(nullptr);
     delete it->second;
   }
   mVideos.clear();
   SetWakeLock(false);
 #endif
 }
 TimeStamp
 nsNPAPIPluginInstance::StopTime()
 {
   return mStopTime;
 }
 nsresult nsNPAPIPluginInstance::Initialize(nsNPAPIPlugin *aPlugin, nsPluginInstanceOwner* aOwner, const char* aMIMEType)
 {
   PLUGIN_LOG(PLUGIN_LOG_NORMAL, ("nsNPAPIPluginInstance::Initialize this=%p\n",this));
   NS_ENSURE_ARG_POINTER(aPlugin);
   NS_ENSURE_ARG_POINTER(aOwner);
   mPlugin = aPlugin;
   mOwner = aOwner;
   if (aMIMEType) {
     mMIMEType = (char*)PR_Malloc(strlen(aMIMEType) + 1);
     if (mMIMEType) {
       PL_strcpy(mMIMEType, aMIMEType);
     }
   }
   return Start();
 }
 nsresult nsNPAPIPluginInstance::Stop()
 {
   PLUGIN_LOG(PLUGIN_LOG_NORMAL, ("nsNPAPIPluginInstance::Stop this=%p\n",this));
   // Make sure the plugin didn't leave popups enabled.
   if (mPopupStates.Length() > 0) {
     nsCOMPtr<nsPIDOMWindow> window = GetDOMWindow();
     if (window) {
       window->PopPopupControlState(openAbused);
     }
   }
   if (RUNNING != mRunning) {
     return NS_OK;
   }
   // clean up all outstanding timers
   for (uint32_t i = mTimers.Length(); i > 0; i--)
     UnscheduleTimer(mTimers[i - 1]->id);
   // If there's code from this plugin instance on the stack, delay the
   // destroy.
   if (PluginDestructionGuard::DelayDestroy(this)) {
     return NS_OK;
   }
   // Make sure we lock while we're writing to mRunning after we've
   // started as other threads might be checking that inside a lock.
   {
     AsyncCallbackAutoLock lock;
     mRunning = DESTROYING;
     mStopTime = TimeStamp::Now();
   }
   OnPluginDestroy(&mNPP);
   // clean up open streams
   while (mStreamListeners.Length() > 0) {
     nsRefPtr<nsNPAPIPluginStreamListener> currentListener(mStreamListeners[0]);
     currentListener->CleanUpStream(NPRES_USER_BREAK);
     mStreamListeners.RemoveElement(currentListener);
   }
   if (!mPlugin || !mPlugin->GetLibrary())
     return NS_ERROR_FAILURE;
   NPPluginFuncs* pluginFunctions = mPlugin->PluginFuncs();
   NPError error = NPERR_GENERIC_ERROR;
   if (pluginFunctions->destroy) {
     NPSavedData *sdata = 0;
     NS_TRY_SAFE_CALL_RETURN(error, (*pluginFunctions->destroy)(&mNPP, &sdata), this,
                             NS_PLUGIN_CALL_UNSAFE_TO_REENTER_GECKO);
     NPP_PLUGIN_LOG(PLUGIN_LOG_NORMAL,
                    ("NPP Destroy called: this=%p, npp=%p, return=%d\n", this, &mNPP, error));
   }
   mRunning = DESTROYED;
 #if MOZ_WIDGET_ANDROID
   for (uint32_t i = 0; i < mPostedEvents.Length(); i++) {
     mPostedEvents[i]->Cancel();
   }
   mPostedEvents.Clear();
 #endif
   nsJSNPRuntime::OnPluginDestroy(&mNPP);
   if (error != NPERR_NO_ERROR)
     return NS_ERROR_FAILURE;
   else
     return NS_OK;
 }
 already_AddRefed<nsPIDOMWindow>
 nsNPAPIPluginInstance::GetDOMWindow()
 {
   if (!mOwner)
     return nullptr;
   nsRefPtr<nsPluginInstanceOwner> deathGrip(mOwner);
   nsCOMPtr<nsIDocument> doc;
   mOwner->GetDocument(getter_AddRefs(doc));
   if (!doc)
     return nullptr;
   nsRefPtr<nsPIDOMWindow> window = doc->GetWindow();
   return window.forget();
 }
 nsresult
 nsNPAPIPluginInstance::GetTagType(nsPluginTagType *result)
 {
   if (!mOwner) {
     return NS_ERROR_FAILURE;
   }
   return mOwner->GetTagType(result);
 }
 nsresult
 nsNPAPIPluginInstance::GetAttributes(uint16_t& n, const char*const*& names,
                                      const char*const*& values)
 {
   if (!mOwner) {
     return NS_ERROR_FAILURE;
   }
   return mOwner->GetAttributes(n, names, values);
 }
 nsresult
 nsNPAPIPluginInstance::GetParameters(uint16_t& n, const char*const*& names,
                                      const char*const*& values)
 {
   if (!mOwner) {
     return NS_ERROR_FAILURE;
   }
   return mOwner->GetParameters(n, names, values);
 }
 nsresult
 nsNPAPIPluginInstance::GetMode(int32_t *result)
 {
   if (mOwner)
     return mOwner->GetMode(result);
   else
     return NS_ERROR_FAILURE;
 }
 nsTArray<nsNPAPIPluginStreamListener*>*
 nsNPAPIPluginInstance::StreamListeners()
 {
   return &mStreamListeners;
 }
 nsTArray<nsPluginStreamListenerPeer*>*
 nsNPAPIPluginInstance::FileCachedStreamListeners()
 {
   return &mFileCachedStreamListeners;
 }
 nsresult
 nsNPAPIPluginInstance::Start()
 {
   if (mRunning == RUNNING) {
     return NS_OK;
   }
   PluginDestructionGuard guard(this);
   uint16_t count = 0;
   const char* const* names = nullptr;
   const char* const* values = nullptr;
   nsPluginTagType tagtype;
   nsresult rv = GetTagType(&tagtype);
   if (NS_SUCCEEDED(rv)) {
     // Note: If we failed to get the tag type, we may be a full page plugin, so no arguments
     rv = GetAttributes(count, names, values);
     NS_ENSURE_SUCCESS(rv, rv);
     // nsPluginTagType_Object or Applet may also have PARAM tags
     // Note: The arrays handed back by GetParameters() are
     // crafted specially to be directly behind the arrays from GetAttributes()
     // with a null entry as a separator. This is for 4.x backwards compatibility!
     // see bug 111008 for details
     if (tagtype != nsPluginTagType_Embed) {
       uint16_t pcount = 0;
       const char* const* pnames = nullptr;
       const char* const* pvalues = nullptr;
       if (NS_SUCCEEDED(GetParameters(pcount, pnames, pvalues))) {
         // Android expects an empty string as the separator instead of null
 #ifdef MOZ_WIDGET_ANDROID
         NS_ASSERTION(PL_strcmp(values[count], "") == 0, "attribute/parameter array not setup correctly for Android NPAPI plugins");
 #else
         NS_ASSERTION(!values[count], "attribute/parameter array not setup correctly for NPAPI plugins");
 #endif
         if (pcount)
           count += ++pcount; // if it's all setup correctly, then all we need is to
                              // change the count (attrs + PARAM/blank + params)
       }
     }
   }
   int32_t       mode;
   const char*   mimetype;
   NPError       error = NPERR_GENERIC_ERROR;
   GetMode(&mode);
   GetMIMEType(&mimetype);
   CheckJavaC2PJSObjectQuirk(count, names, values);
   // Some older versions of Flash have a bug in them
   // that causes the stack to become currupt if we
   // pass swliveconnect=1 in the NPP_NewProc arrays.
   // See bug 149336 (UNIX), bug 186287 (Mac)
   //
   // The code below disables the attribute unless
   // the environment variable:
   // MOZILLA_PLUGIN_DISABLE_FLASH_SWLIVECONNECT_HACK
   // is set.
   //
   // It is okay to disable this attribute because
   // back in 4.x, scripting required liveconnect to
   // start Java which was slow. Scripting no longer
   // requires starting Java and is quick plus controled
   // from the browser, so Flash now ignores this attribute.
   //
   // This code can not be put at the time of creating
   // the array because we may need to examine the
   // stream header to determine we want Flash.
   static const char flashMimeType[] = "application/x-shockwave-flash";
   static const char blockedParam[] = "swliveconnect";
   if (count && !PL_strcasecmp(mimetype, flashMimeType)) {
     static int cachedDisableHack = 0;
     if (!cachedDisableHack) {
        if (PR_GetEnv("MOZILLA_PLUGIN_DISABLE_FLASH_SWLIVECONNECT_HACK"))
          cachedDisableHack = -1;
        else
          cachedDisableHack = 1;
     }
     if (cachedDisableHack > 0) {
       for (uint16_t i=0; i<count; i++) {
         if (!PL_strcasecmp(names[i], blockedParam)) {
           // BIG FAT WARNIG:
           // I'm ugly casting |const char*| to |char*| and altering it
           // because I know we do malloc it values in
           // http://bonsai.mozilla.org/cvsblame.cgi?file=mozilla/layout/html/base/src/nsObjectFrame.cpp&rev=1.349&root=/cvsroot#3020
           // and free it at line #2096, so it couldn't be a const ptr to string literal
           char *val = (char*) values[i];
           if (val && *val) {
             // we cannot just *val=0, it won't be free properly in such case
             val[0] = '0';
             val[1] = 0;
           }
           break;
         }
       }
     }
   }
   bool oldVal = mInPluginInitCall;
   mInPluginInitCall = true;
   // Need this on the stack before calling NPP_New otherwise some callbacks that
   // the plugin may make could fail (NPN_HasProperty, for example).
   NPPAutoPusher autopush(&mNPP);
   if (!mPlugin)
     return NS_ERROR_FAILURE;
   PluginLibrary* library = mPlugin->GetLibrary();
   if (!library)
     return NS_ERROR_FAILURE;
   // Mark this instance as running before calling NPP_New because the plugin may
   // call other NPAPI functions, like NPN_GetURLNotify, that assume this is set
   // before returning. If the plugin returns failure, we'll clear it out below.
   mRunning = RUNNING;
   nsresult newResult = library->NPP_New((char*)mimetype, &mNPP, (uint16_t)mode,
                                         count, (char**)names, (char**)values,
                                         nullptr, &error);
   mInPluginInitCall = oldVal;
   NPP_PLUGIN_LOG(PLUGIN_LOG_NORMAL,
   ("NPP New called: this=%p, npp=%p, mime=%s, mode=%d, argc=%d, return=%d\n",
   this, &mNPP, mimetype, mode, count, error));
   if (NS_FAILED(newResult) || error != NPERR_NO_ERROR) {
     mRunning = DESTROYED;
     nsJSNPRuntime::OnPluginDestroy(&mNPP);
     return NS_ERROR_FAILURE;
   }
   return NS_OK;
 }
 nsresult nsNPAPIPluginInstance::SetWindow(NPWindow* window)
 {
   // NPAPI plugins don't want a SetWindow(nullptr).
   if (!window || RUNNING != mRunning)
     return NS_OK;
 #if MOZ_WIDGET_GTK
   // bug 108347, flash plugin on linux doesn't like window->width <=
   // 0, but Java needs wants this call.
   if (!nsPluginHost::IsJavaMIMEType(mMIMEType) && window->type == NPWindowTypeWindow &&
       (window->width <= 0 || window->height <= 0)) {
     return NS_OK;
   }
 #endif
   if (!mPlugin || !mPlugin->GetLibrary())
     return NS_ERROR_FAILURE;
   NPPluginFuncs* pluginFunctions = mPlugin->PluginFuncs();
   if (pluginFunctions->setwindow) {
     PluginDestructionGuard guard(this);
     // XXX Turns out that NPPluginWindow and NPWindow are structurally
     // identical (on purpose!), so there's no need to make a copy.
     PLUGIN_LOG(PLUGIN_LOG_NORMAL, ("nsNPAPIPluginInstance::SetWindow (about to call it) this=%p\n",this));
     bool oldVal = mInPluginInitCall;
     mInPluginInitCall = true;
     NPPAutoPusher nppPusher(&mNPP);
     DebugOnly<NPError> error;
     NS_TRY_SAFE_CALL_RETURN(error, (*pluginFunctions->setwindow)(&mNPP, (NPWindow*)window), this,
                             NS_PLUGIN_CALL_UNSAFE_TO_REENTER_GECKO);
     mInPluginInitCall = oldVal;
     NPP_PLUGIN_LOG(PLUGIN_LOG_NORMAL,
     ("NPP SetWindow called: this=%p, [x=%d,y=%d,w=%d,h=%d], clip[t=%d,b=%d,l=%d,r=%d], return=%d\n",
     this, window->x, window->y, window->width, window->height,
     window->clipRect.top, window->clipRect.bottom, window->clipRect.left, window->clipRect.right, (NPError)error));
   }
   return NS_OK;
 }
 nsresult
 nsNPAPIPluginInstance::NewStreamFromPlugin(const char* type, const char* target,
                                            nsIOutputStream* *result)
 {
   nsPluginStreamToFile* stream = new nsPluginStreamToFile(target, mOwner);
   if (!stream)
     return NS_ERROR_OUT_OF_MEMORY;
   return stream->QueryInterface(kIOutputStreamIID, (void**)result);
 }
 nsresult
 nsNPAPIPluginInstance::NewStreamListener(const char* aURL, void* notifyData,
                                          nsNPAPIPluginStreamListener** listener)
 {
   nsRefPtr<nsNPAPIPluginStreamListener> sl = new nsNPAPIPluginStreamListener(this, notifyData, aURL);
   mStreamListeners.AppendElement(sl);
   sl.forget(listener);
   return NS_OK;
 }
 nsresult nsNPAPIPluginInstance::Print(NPPrint* platformPrint)
 {
   NS_ENSURE_TRUE(platformPrint, NS_ERROR_NULL_POINTER);
   PluginDestructionGuard guard(this);
   if (!mPlugin || !mPlugin->GetLibrary())
     return NS_ERROR_FAILURE;
   NPPluginFuncs* pluginFunctions = mPlugin->PluginFuncs();
   NPPrint* thePrint = (NPPrint *)platformPrint;
   // to be compatible with the older SDK versions and to match what
   // NPAPI and other browsers do, overwrite |window.type| field with one
   // more copy of |platformPrint|. See bug 113264
   uint16_t sdkmajorversion = (pluginFunctions->version & 0xff00)>>8;
   uint16_t sdkminorversion = pluginFunctions->version & 0x00ff;
   if ((sdkmajorversion == 0) && (sdkminorversion < 11)) {
     // Let's copy platformPrint bytes over to where it was supposed to be
     // in older versions -- four bytes towards the beginning of the struct
     // but we should be careful about possible misalignments
     if (sizeof(NPWindowType) >= sizeof(void *)) {
       void* source = thePrint->print.embedPrint.platformPrint;
       void** destination = (void **)&(thePrint->print.embedPrint.window.type);
       *destination = source;
     } else {
       NS_ERROR("Incompatible OS for assignment");
     }
   }
   if (pluginFunctions->print)
       NS_TRY_SAFE_CALL_VOID((*pluginFunctions->print)(&mNPP, thePrint), this,
                             NS_PLUGIN_CALL_UNSAFE_TO_REENTER_GECKO);
   NPP_PLUGIN_LOG(PLUGIN_LOG_NORMAL,
   ("NPP PrintProc called: this=%p, pDC=%p, [x=%d,y=%d,w=%d,h=%d], clip[t=%d,b=%d,l=%d,r=%d]\n",
   this,
   platformPrint->print.embedPrint.platformPrint,
   platformPrint->print.embedPrint.window.x,
   platformPrint->print.embedPrint.window.y,
   platformPrint->print.embedPrint.window.width,
   platformPrint->print.embedPrint.window.height,
   platformPrint->print.embedPrint.window.clipRect.top,
   platformPrint->print.embedPrint.window.clipRect.bottom,
   platformPrint->print.embedPrint.window.clipRect.left,
   platformPrint->print.embedPrint.window.clipRect.right));
   return NS_OK;
 }
 nsresult nsNPAPIPluginInstance::HandleEvent(void* event, int16_t* result,
                                             NSPluginCallReentry aSafeToReenterGecko)
 {
   if (RUNNING != mRunning)
     return NS_OK;
   if (!event)
     return NS_ERROR_FAILURE;
   PluginDestructionGuard guard(this);
   if (!mPlugin || !mPlugin->GetLibrary())
     return NS_ERROR_FAILURE;
   NPPluginFuncs* pluginFunctions = mPlugin->PluginFuncs();
   int16_t tmpResult = kNPEventNotHandled;
   if (pluginFunctions->event) {
     mCurrentPluginEvent = event;
 #if defined(XP_WIN)
     NS_TRY_SAFE_CALL_RETURN(tmpResult, (*pluginFunctions->event)(&mNPP, event), this,
                             aSafeToReenterGecko);
 #else
     MAIN_THREAD_JNI_REF_GUARD;
     tmpResult = (*pluginFunctions->event)(&mNPP, event);
 #endif
     NPP_PLUGIN_LOG(PLUGIN_LOG_NOISY,
       ("NPP HandleEvent called: this=%p, npp=%p, event=%p, return=%d\n",
       this, &mNPP, event, tmpResult));
     if (result)
       *result = tmpResult;
     mCurrentPluginEvent = nullptr;
   }
   return NS_OK;
 }
 nsresult nsNPAPIPluginInstance::GetValueFromPlugin(NPPVariable variable, void* value)
 {
   if (!mPlugin || !mPlugin->GetLibrary())
     return NS_ERROR_FAILURE;
   NPPluginFuncs* pluginFunctions = mPlugin->PluginFuncs();
   nsresult rv = NS_ERROR_FAILURE;
   if (pluginFunctions->getvalue && RUNNING == mRunning) {
     PluginDestructionGuard guard(this);
     NPError pluginError = NPERR_GENERIC_ERROR;
     NS_TRY_SAFE_CALL_RETURN(pluginError, (*pluginFunctions->getvalue)(&mNPP, variable, value), this,
                             NS_PLUGIN_CALL_UNSAFE_TO_REENTER_GECKO);
     NPP_PLUGIN_LOG(PLUGIN_LOG_NORMAL,
     ("NPP GetValue called: this=%p, npp=%p, var=%d, value=%d, return=%d\n",
     this, &mNPP, variable, value, pluginError));
     if (pluginError == NPERR_NO_ERROR) {
       rv = NS_OK;
     }
   }
   return rv;
 }
 nsNPAPIPlugin* nsNPAPIPluginInstance::GetPlugin()
 {
   return mPlugin;
 }
 nsresult nsNPAPIPluginInstance::GetNPP(NPP* aNPP)
 {
   if (aNPP)
     *aNPP = &mNPP;
   else
     return NS_ERROR_NULL_POINTER;
   return NS_OK;
 }
 NPError nsNPAPIPluginInstance::SetWindowless(bool aWindowless)
 {
   mWindowless = aWindowless;
   if (mMIMEType) {
     // bug 558434 - Prior to 3.6.4, we assumed windowless was transparent.
     // Silverlight apparently relied on this quirk, so we default to
     // transparent unless they specify otherwise after setting the windowless
     // property. (Last tested version: sl 4.0).
     // Changes to this code should be matched with changes in
     // PluginInstanceChild::InitQuirksMode.
     NS_NAMED_LITERAL_CSTRING(silverlight, "application/x-silverlight");
     if (!PL_strncasecmp(mMIMEType, silverlight.get(), silverlight.Length())) {
       mTransparent = true;
     }
   }
   return NPERR_NO_ERROR;
 }
 NPError nsNPAPIPluginInstance::SetTransparent(bool aTransparent)
 {
   mTransparent = aTransparent;
   return NPERR_NO_ERROR;
 }
 NPError nsNPAPIPluginInstance::SetUsesDOMForCursor(bool aUsesDOMForCursor)
 {
   mUsesDOMForCursor = aUsesDOMForCursor;
   return NPERR_NO_ERROR;
 }
 bool
 nsNPAPIPluginInstance::UsesDOMForCursor()
 {
   return mUsesDOMForCursor;
 }
 void nsNPAPIPluginInstance::SetDrawingModel(NPDrawingModel aModel)
 {
   mDrawingModel = aModel;
 }
 void nsNPAPIPluginInstance::RedrawPlugin()
 {
   mOwner->RedrawPlugin();
 }
 #if defined(XP_MACOSX)
 void nsNPAPIPluginInstance::SetEventModel(NPEventModel aModel)
 {
   // the event model needs to be set for the object frame immediately
   if (!mOwner) {
     NS_WARNING("Trying to set event model without a plugin instance owner!");
     return;
   }
   mOwner->SetEventModel(aModel);
 }
 #endif
 #if defined(MOZ_WIDGET_ANDROID)
 static void SendLifecycleEvent(nsNPAPIPluginInstance* aInstance, uint32_t aAction)
 {
   ANPEvent event;
   event.inSize = sizeof(ANPEvent);
   event.eventType = kLifecycle_ANPEventType;
   event.data.lifecycle.action = aAction;
   aInstance->HandleEvent(&event, nullptr);
 }
 void nsNPAPIPluginInstance::NotifyForeground(bool aForeground)
 {
   PLUGIN_LOG(PLUGIN_LOG_NORMAL, ("nsNPAPIPluginInstance::SetForeground this=%p\n foreground=%d",this, aForeground));
   if (RUNNING != mRunning)
     return;
   SendLifecycleEvent(this, aForeground ? kResume_ANPLifecycleAction : kPause_ANPLifecycleAction);
 }
 void nsNPAPIPluginInstance::NotifyOnScreen(bool aOnScreen)
 {
   PLUGIN_LOG(PLUGIN_LOG_NORMAL, ("nsNPAPIPluginInstance::SetOnScreen this=%p\n onScreen=%d",this, aOnScreen));
   if (RUNNING != mRunning || mOnScreen == aOnScreen)
     return;
   mOnScreen = aOnScreen;
   SendLifecycleEvent(this, aOnScreen ? kOnScreen_ANPLifecycleAction : kOffScreen_ANPLifecycleAction);
 }
 void nsNPAPIPluginInstance::MemoryPressure()
 {
   PLUGIN_LOG(PLUGIN_LOG_NORMAL, ("nsNPAPIPluginInstance::MemoryPressure this=%p\n",this));
   if (RUNNING != mRunning)
     return;
   SendLifecycleEvent(this, kFreeMemory_ANPLifecycleAction);
 }
 void nsNPAPIPluginInstance::NotifyFullScreen(bool aFullScreen)
 {
   PLUGIN_LOG(PLUGIN_LOG_NORMAL, ("nsNPAPIPluginInstance::NotifyFullScreen this=%p\n",this));
   if (RUNNING != mRunning || mFullScreen == aFullScreen)
     return;
   mFullScreen = aFullScreen;
   SendLifecycleEvent(this, mFullScreen ? kEnterFullScreen_ANPLifecycleAction : kExitFullScreen_ANPLifecycleAction);
   if (mFullScreen && mFullScreenOrientation != dom::eScreenOrientation_None) {
     mozilla::widget::android::GeckoAppShell::LockScreenOrientation(mFullScreenOrientation);
   }
 }
 void nsNPAPIPluginInstance::NotifySize(nsIntSize size)
 {
   if (kOpenGL_ANPDrawingModel != GetANPDrawingModel() ||
       size == mCurrentSize)
     return;
   mCurrentSize = size;
   ANPEvent event;
   event.inSize = sizeof(ANPEvent);
   event.eventType = kDraw_ANPEventType;
   event.data.draw.model = kOpenGL_ANPDrawingModel;
   event.data.draw.data.surfaceSize.width = size.width;
   event.data.draw.data.surfaceSize.height = size.height;
   HandleEvent(&event, nullptr);
 }
 void nsNPAPIPluginInstance::SetANPDrawingModel(uint32_t aModel)
 {
   mANPDrawingModel = aModel;
 }
 void* nsNPAPIPluginInstance::GetJavaSurface()
 {
   void* surface = nullptr;
   nsresult rv = GetValueFromPlugin(kJavaSurface_ANPGetValue, &surface);
   if (NS_FAILED(rv))
     return nullptr;
   return surface;
 }
 void nsNPAPIPluginInstance::PostEvent(void* event)
 {
   PluginEventRunnable *r = new PluginEventRunnable(this, (ANPEvent*)event);
   mPostedEvents.AppendElement(nsRefPtr<PluginEventRunnable>(r));
   NS_DispatchToMainThread(r);
 }
 void nsNPAPIPluginInstance::SetFullScreenOrientation(uint32_t orientation)
 {
   if (mFullScreenOrientation == orientation)
     return;
   uint32_t oldOrientation = mFullScreenOrientation;
   mFullScreenOrientation = orientation;
   if (mFullScreen) {
     // We're already fullscreen so immediately apply the orientation change
     if (mFullScreenOrientation != dom::eScreenOrientation_None) {
       mozilla::widget::android::GeckoAppShell::LockScreenOrientation(mFullScreenOrientation);
     } else if (oldOrientation != dom::eScreenOrientation_None) {
       // We applied an orientation when we entered fullscreen, but
       // we don't want it anymore
       mozilla::widget::android::GeckoAppShell::UnlockScreenOrientation();
     }
   }
 }
 void nsNPAPIPluginInstance::PopPostedEvent(PluginEventRunnable* r)
 {
   mPostedEvents.RemoveElement(r);
 }
 void nsNPAPIPluginInstance::SetWakeLock(bool aLocked)
 {
   if (aLocked == mWakeLocked)
     return;
   mWakeLocked = aLocked;
   hal::ModifyWakeLock(NS_LITERAL_STRING("nsNPAPIPluginInstance"),
                       mWakeLocked ? hal::WAKE_LOCK_ADD_ONE : hal::WAKE_LOCK_REMOVE_ONE,
                       hal::WAKE_LOCK_NO_CHANGE);
 }
 void nsNPAPIPluginInstance::EnsureSharedTexture()
 {
   if (!mContentTexture)
     mContentTexture = new SharedPluginTexture();
 }
 GLContext* nsNPAPIPluginInstance::GLContext()
 {
   if (!EnsureGLContext())
     return nullptr;
   return sPluginContext;
 }
 nsNPAPIPluginInstance::TextureInfo nsNPAPIPluginInstance::LockContentTexture()
 {
   EnsureSharedTexture();
   return mContentTexture->Lock();
 }
 void nsNPAPIPluginInstance::ReleaseContentTexture(nsNPAPIPluginInstance::TextureInfo& aTextureInfo)
 {
   EnsureSharedTexture();
   mContentTexture->Release(aTextureInfo);
 }
 nsSurfaceTexture* nsNPAPIPluginInstance::CreateSurfaceTexture()
 {
   if (!EnsureGLContext())
     return nullptr;
   GLuint texture = TexturePoolOGL::AcquireTexture();
   if (!texture)
     return nullptr;
   nsSurfaceTexture* surface = nsSurfaceTexture::Create(texture);
   if (!surface)
     return nullptr;
   nsCOMPtr<nsIRunnable> frameCallback = NS_NewRunnableMethod(this, &nsNPAPIPluginInstance::OnSurfaceTextureFrameAvailable);
   surface->SetFrameAvailableCallback(frameCallback);
   return surface;
 }
 void nsNPAPIPluginInstance::OnSurfaceTextureFrameAvailable()
 {
   if (mRunning == RUNNING && mOwner)
     AndroidBridge::Bridge()->ScheduleComposite();
 }
 void* nsNPAPIPluginInstance::AcquireContentWindow()
 {
   if (!mContentSurface) {
     mContentSurface = CreateSurfaceTexture();
     if (!mContentSurface)
       return nullptr;
   }
   return mContentSurface->GetNativeWindow();
 }
 SharedTextureHandle nsNPAPIPluginInstance::CreateSharedHandle()
 {
   if (mContentTexture) {
     return mContentTexture->CreateSharedHandle();
   } else if (mContentSurface) {
     EnsureGLContext();
     return gl::CreateSharedHandle(sPluginContext,
                                   gl::SharedTextureShareType::SameProcess,
                                   mContentSurface,
                                   gl::SharedTextureBufferType::SurfaceTexture);
   } else return 0;
 }
 void* nsNPAPIPluginInstance::AcquireVideoWindow()
 {
   nsSurfaceTexture* surface = CreateSurfaceTexture();
   if (!surface)
     return nullptr;
   VideoInfo* info = new VideoInfo(surface);
   void* window = info->mSurfaceTexture->GetNativeWindow();
   mVideos.insert(std::pair<void*, VideoInfo*>(window, info));
   return window;
 }
 void nsNPAPIPluginInstance::ReleaseVideoWindow(void* window)
 {
   std::map<void*, VideoInfo*>::iterator it = mVideos.find(window);
   if (it == mVideos.end())
     return;
   delete it->second;
   mVideos.erase(window);
 }
 void nsNPAPIPluginInstance::SetVideoDimensions(void* window, gfxRect aDimensions)
 {
   std::map<void*, VideoInfo*>::iterator it;
   it = mVideos.find(window);
   if (it == mVideos.end())
     return;
   it->second->mDimensions = aDimensions;
 }
 void nsNPAPIPluginInstance::GetVideos(nsTArray<VideoInfo*>& aVideos)
 {
   std::map<void*, VideoInfo*>::iterator it;
   for (it = mVideos.begin(); it != mVideos.end(); it++)
     aVideos.AppendElement(it->second);
 }
 void nsNPAPIPluginInstance::SetInverted(bool aInverted)
 {
   if (aInverted == mInverted)
     return;
   mInverted = aInverted;
 }
 nsNPAPIPluginInstance* nsNPAPIPluginInstance::GetFromNPP(NPP npp)
 {
   std::map<NPP, nsNPAPIPluginInstance*>::iterator it;
   it = sPluginNPPMap.find(npp);
   if (it == sPluginNPPMap.end())
     return nullptr;
   return it->second;
 }
 #endif
 nsresult nsNPAPIPluginInstance::GetDrawingModel(int32_t* aModel)
 {
 #if defined(XP_MACOSX)
   *aModel = (int32_t)mDrawingModel;
   return NS_OK;
 #else
   return NS_ERROR_FAILURE;
 #endif
 }
 nsresult nsNPAPIPluginInstance::IsRemoteDrawingCoreAnimation(bool* aDrawing)
 {
 #ifdef XP_MACOSX
   if (!mPlugin)
       return NS_ERROR_FAILURE;
   PluginLibrary* library = mPlugin->GetLibrary();
   if (!library)
       return NS_ERROR_FAILURE;
   return library->IsRemoteDrawingCoreAnimation(&mNPP, aDrawing);
 #else
   return NS_ERROR_FAILURE;
 #endif
 }
 nsresult nsNPAPIPluginInstance::ContentsScaleFactorChanged(double aContentsScaleFactor)
 {
 #ifdef XP_MACOSX
   if (!mPlugin)
       return NS_ERROR_FAILURE;
   PluginLibrary* library = mPlugin->GetLibrary();
   if (!library)
       return NS_ERROR_FAILURE;
   // We only need to call this if the plugin is running OOP.
   if (!library->IsOOP())
       return NS_OK;
   return library->ContentsScaleFactorChanged(&mNPP, aContentsScaleFactor);
 #else
   return NS_ERROR_FAILURE;
 #endif
 }
 nsresult
 nsNPAPIPluginInstance::GetJSObject(JSContext *cx, JSObject** outObject)
 {
   if (mHaveJavaC2PJSObjectQuirk) {
     return NS_ERROR_FAILURE;
   }
   NPObject *npobj = nullptr;
   nsresult rv = GetValueFromPlugin(NPPVpluginScriptableNPObject, &npobj);
   if (NS_FAILED(rv) || !npobj)
     return NS_ERROR_FAILURE;
   *outObject = nsNPObjWrapper::GetNewOrUsed(&mNPP, cx, npobj);
   _releaseobject(npobj);
   return NS_OK;
 }
 void
 nsNPAPIPluginInstance::SetCached(bool aCache)
 {
   mCached = aCache;
 }
 bool
 nsNPAPIPluginInstance::ShouldCache()
 {
   return mCached;
 }
 nsresult
 nsNPAPIPluginInstance::IsWindowless(bool* isWindowless)
 {
 #ifdef MOZ_WIDGET_ANDROID
   // On android, pre-honeycomb, all plugins are treated as windowless.
   *isWindowless = true;
 #else
   *isWindowless = mWindowless;
 #endif
   return NS_OK;
 }
 class MOZ_STACK_CLASS AutoPluginLibraryCall
 {
 public:
   AutoPluginLibraryCall(nsNPAPIPluginInstance* aThis)
     : mThis(aThis), mGuard(aThis), mLibrary(nullptr)
   {
     nsNPAPIPlugin* plugin = mThis->GetPlugin();
     if (plugin)
       mLibrary = plugin->GetLibrary();
   }
   operator bool() { return !!mLibrary; }
   PluginLibrary* operator->() { return mLibrary; }
 private:
   nsNPAPIPluginInstance* mThis;
   PluginDestructionGuard mGuard;
   PluginLibrary* mLibrary;
 };
 nsresult
 nsNPAPIPluginInstance::AsyncSetWindow(NPWindow* window)
 {
   if (RUNNING != mRunning)
     return NS_OK;
   AutoPluginLibraryCall library(this);
   if (!library)
     return NS_ERROR_FAILURE;
   return library->AsyncSetWindow(&mNPP, window);
 }
 nsresult
 nsNPAPIPluginInstance::GetImageContainer(ImageContainer**aContainer)
 {
   *aContainer = nullptr;
   if (RUNNING != mRunning)
     return NS_OK;
   AutoPluginLibraryCall library(this);
   return !library ? NS_ERROR_FAILURE : library->GetImageContainer(&mNPP, aContainer);
 }
 nsresult
 nsNPAPIPluginInstance::GetImageSize(nsIntSize* aSize)
 {
   *aSize = nsIntSize(0, 0);
   if (RUNNING != mRunning)
     return NS_OK;
   AutoPluginLibraryCall library(this);
   return !library ? NS_ERROR_FAILURE : library->GetImageSize(&mNPP, aSize);
 }
 nsresult
 nsNPAPIPluginInstance::NotifyPainted(void)
 {
   NS_NOTREACHED("Dead code, shouldn't be called.");
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 nsresult
 nsNPAPIPluginInstance::GetIsOOP(bool* aIsAsync)
 {
   AutoPluginLibraryCall library(this);
   if (!library)
     return NS_ERROR_FAILURE;
   *aIsAsync = library->IsOOP();
   return NS_OK;
 }
 nsresult
 nsNPAPIPluginInstance::SetBackgroundUnknown()
 {
   if (RUNNING != mRunning)
     return NS_OK;
   AutoPluginLibraryCall library(this);
   if (!library)
     return NS_ERROR_FAILURE;
   return library->SetBackgroundUnknown(&mNPP);
 }
 nsresult
 nsNPAPIPluginInstance::BeginUpdateBackground(nsIntRect* aRect,
                                              gfxContext** aContext)
 {
   if (RUNNING != mRunning)
     return NS_OK;
   AutoPluginLibraryCall library(this);
   if (!library)
     return NS_ERROR_FAILURE;
   return library->BeginUpdateBackground(&mNPP, *aRect, aContext);
 }
 nsresult
 nsNPAPIPluginInstance::EndUpdateBackground(gfxContext* aContext,
                                            nsIntRect* aRect)
 {
   if (RUNNING != mRunning)
     return NS_OK;
   AutoPluginLibraryCall library(this);
   if (!library)
     return NS_ERROR_FAILURE;
   return library->EndUpdateBackground(&mNPP, aContext, *aRect);
 }
 nsresult
 nsNPAPIPluginInstance::IsTransparent(bool* isTransparent)
 {
   *isTransparent = mTransparent;
   return NS_OK;
 }
 nsresult
 nsNPAPIPluginInstance::GetFormValue(nsAString& aValue)
 {
   aValue.Truncate();
   char *value = nullptr;
   nsresult rv = GetValueFromPlugin(NPPVformValue, &value);
   if (NS_FAILED(rv) || !value)
     return NS_ERROR_FAILURE;
   CopyUTF8toUTF16(value, aValue);
   // NPPVformValue allocates with NPN_MemAlloc(), which uses
   // nsMemory.
   nsMemory::Free(value);
   return NS_OK;
 }
 nsresult
 nsNPAPIPluginInstance::PushPopupsEnabledState(bool aEnabled)
 {
   nsCOMPtr<nsPIDOMWindow> window = GetDOMWindow();
   if (!window)
     return NS_ERROR_FAILURE;
   PopupControlState oldState =
     window->PushPopupControlState(aEnabled ? openAllowed : openAbused,
                                   true);
   if (!mPopupStates.AppendElement(oldState)) {
     // Appending to our state stack failed, pop what we just pushed.
     window->PopPopupControlState(oldState);
     return NS_ERROR_FAILURE;
   }
   return NS_OK;
 }
 nsresult
 nsNPAPIPluginInstance::PopPopupsEnabledState()
 {
   int32_t last = mPopupStates.Length() - 1;
   if (last < 0) {
     // Nothing to pop.
     return NS_OK;
   }
   nsCOMPtr<nsPIDOMWindow> window = GetDOMWindow();
   if (!window)
     return NS_ERROR_FAILURE;
   PopupControlState &oldState = mPopupStates[last];
   window->PopPopupControlState(oldState);
   mPopupStates.RemoveElementAt(last);
   return NS_OK;
 }
 nsresult
 nsNPAPIPluginInstance::GetPluginAPIVersion(uint16_t* version)
 {
   NS_ENSURE_ARG_POINTER(version);
   if (!mPlugin)
     return NS_ERROR_FAILURE;
   if (!mPlugin->GetLibrary())
     return NS_ERROR_FAILURE;
   NPPluginFuncs* pluginFunctions = mPlugin->PluginFuncs();
   *version = pluginFunctions->version;
   return NS_OK;
 }
 nsresult
 nsNPAPIPluginInstance::PrivateModeStateChanged(bool enabled)
 {
   if (RUNNING != mRunning)
     return NS_OK;
   PLUGIN_LOG(PLUGIN_LOG_NORMAL, ("nsNPAPIPluginInstance informing plugin of private mode state change this=%p\n",this));
   if (!mPlugin || !mPlugin->GetLibrary())
     return NS_ERROR_FAILURE;
   NPPluginFuncs* pluginFunctions = mPlugin->PluginFuncs();
   if (!pluginFunctions->setvalue)
     return NS_ERROR_FAILURE;
   PluginDestructionGuard guard(this);
   NPError error;
   NPBool value = static_cast<NPBool>(enabled);
   NS_TRY_SAFE_CALL_RETURN(error, (*pluginFunctions->setvalue)(&mNPP, NPNVprivateModeBool, &value), this,
                           NS_PLUGIN_CALL_UNSAFE_TO_REENTER_GECKO);
   return (error == NPERR_NO_ERROR) ? NS_OK : NS_ERROR_FAILURE;
 }
 nsresult
 nsNPAPIPluginInstance::IsPrivateBrowsing(bool* aEnabled)
 {
   if (!mOwner)
     return NS_ERROR_FAILURE;
   nsCOMPtr<nsIDocument> doc;
   mOwner->GetDocument(getter_AddRefs(doc));
   NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
   nsCOMPtr<nsPIDOMWindow> domwindow = doc->GetWindow();
   NS_ENSURE_TRUE(domwindow, NS_ERROR_FAILURE);
   nsCOMPtr<nsIDocShell> docShell = domwindow->GetDocShell();
   nsCOMPtr<nsILoadContext> loadContext = do_QueryInterface(docShell);
   *aEnabled = (loadContext && loadContext->UsePrivateBrowsing());
   return NS_OK;
 }
 static void
 PluginTimerCallback(nsITimer *aTimer, void *aClosure)
 {
   nsNPAPITimer* t = (nsNPAPITimer*)aClosure;
   NPP npp = t->npp;
   uint32_t id = t->id;
   PLUGIN_LOG(PLUGIN_LOG_NOISY, ("nsNPAPIPluginInstance running plugin timer callback this=%p\n", npp->ndata));
   MAIN_THREAD_JNI_REF_GUARD;
   // Some plugins (Flash on Android) calls unscheduletimer
   // from this callback.
   t->inCallback = true;
   (*(t->callback))(npp, id);
   t->inCallback = false;
   // Make sure we still have an instance and the timer is still alive
   // after the callback.
   nsNPAPIPluginInstance *inst = (nsNPAPIPluginInstance*)npp->ndata;
   if (!inst || !inst->TimerWithID(id, nullptr))
     return;
   // use UnscheduleTimer to clean up if this is a one-shot timer
   uint32_t timerType;
   t->timer->GetType(&timerType);
   if (t->needUnschedule || timerType == nsITimer::TYPE_ONE_SHOT)
     inst->UnscheduleTimer(id);
 }
 nsNPAPITimer*
 nsNPAPIPluginInstance::TimerWithID(uint32_t id, uint32_t* index)
 {
   uint32_t len = mTimers.Length();
   for (uint32_t i = 0; i < len; i++) {
     if (mTimers[i]->id == id) {
       if (index)
         *index = i;
       return mTimers[i];
     }
   }
   return nullptr;
 }
 uint32_t
 nsNPAPIPluginInstance::ScheduleTimer(uint32_t interval, NPBool repeat, void (*timerFunc)(NPP npp, uint32_t timerID))
 {
   if (RUNNING != mRunning)
     return 0;
   nsNPAPITimer *newTimer = new nsNPAPITimer();
   newTimer->inCallback = newTimer->needUnschedule = false;
   newTimer->npp = &mNPP;
   // generate ID that is unique to this instance
   uint32_t uniqueID = mTimers.Length();
   while ((uniqueID == 0) || TimerWithID(uniqueID, nullptr))
     uniqueID++;
   newTimer->id = uniqueID;
   // create new xpcom timer, scheduled correctly
   nsresult rv;
   nsCOMPtr<nsITimer> xpcomTimer = do_CreateInstance(NS_TIMER_CONTRACTID, &rv);
   if (NS_FAILED(rv)) {
     delete newTimer;
     return 0;
   }
   const short timerType = (repeat ? (short)nsITimer::TYPE_REPEATING_SLACK : (short)nsITimer::TYPE_ONE_SHOT);
   xpcomTimer->InitWithFuncCallback(PluginTimerCallback, newTimer, interval, timerType);
   newTimer->timer = xpcomTimer;
   // save callback function
   newTimer->callback = timerFunc;
   // add timer to timers array
   mTimers.AppendElement(newTimer);
   return newTimer->id;
 }
 void
 nsNPAPIPluginInstance::UnscheduleTimer(uint32_t timerID)
 {
   // find the timer struct by ID
   uint32_t index;
   nsNPAPITimer* t = TimerWithID(timerID, &index);
   if (!t)
     return;
   if (t->inCallback) {
     t->needUnschedule = true;
     return;
   }
   // cancel the timer
   t->timer->Cancel();
   // remove timer struct from array
   mTimers.RemoveElementAt(index);
   // delete timer
   delete t;
 }
 // Show the context menu at the location for the current event.
 // This can only be called from within an NPP_SendEvent call.
 NPError
 nsNPAPIPluginInstance::PopUpContextMenu(NPMenu* menu)
 {
   if (mOwner && mCurrentPluginEvent)
     return mOwner->ShowNativeContextMenu(menu, mCurrentPluginEvent);
   return NPERR_GENERIC_ERROR;
 }
 NPBool
 nsNPAPIPluginInstance::ConvertPoint(double sourceX, double sourceY, NPCoordinateSpace sourceSpace,
                                     double *destX, double *destY, NPCoordinateSpace destSpace)
 {
   if (mOwner)
     return mOwner->ConvertPoint(sourceX, sourceY, sourceSpace, destX, destY, destSpace);
   return false;
 }
 nsresult
 nsNPAPIPluginInstance::GetDOMElement(nsIDOMElement* *result)
 {
   if (!mOwner) {
     *result = nullptr;
     return NS_ERROR_FAILURE;
   }
   return mOwner->GetDOMElement(result);
 }
 nsresult
 nsNPAPIPluginInstance::InvalidateRect(NPRect *invalidRect)
 {
   if (RUNNING != mRunning)
     return NS_OK;
   if (!mOwner)
     return NS_ERROR_FAILURE;
   return mOwner->InvalidateRect(invalidRect);
 }
 nsresult
 nsNPAPIPluginInstance::InvalidateRegion(NPRegion invalidRegion)
 {
   if (RUNNING != mRunning)
     return NS_OK;
   if (!mOwner)
     return NS_ERROR_FAILURE;
   return mOwner->InvalidateRegion(invalidRegion);
 }
 nsresult
 nsNPAPIPluginInstance::GetMIMEType(const char* *result)
 {
   if (!mMIMEType)
     *result = "";
   else
     *result = mMIMEType;
   return NS_OK;
 }
 nsresult
 nsNPAPIPluginInstance::GetJSContext(JSContext* *outContext)
 {
   if (!mOwner)
     return NS_ERROR_FAILURE;
   nsRefPtr<nsPluginInstanceOwner> deathGrip(mOwner);
   *outContext = nullptr;
   nsCOMPtr<nsIDocument> document;
   nsresult rv = mOwner->GetDocument(getter_AddRefs(document));
   if (NS_SUCCEEDED(rv) && document) {
     nsCOMPtr<nsIScriptGlobalObject> global =
       do_QueryInterface(document->GetWindow());
     if (global) {
       nsIScriptContext *context = global->GetContext();
       if (context) {
         *outContext = context->GetNativeContext();
       }
     }
   }
   return rv;
 }
 nsPluginInstanceOwner*
 nsNPAPIPluginInstance::GetOwner()
 {
   return mOwner;
 }
 void
 nsNPAPIPluginInstance::SetOwner(nsPluginInstanceOwner *aOwner)
 {
   mOwner = aOwner;
 }
 nsresult
 nsNPAPIPluginInstance::ShowStatus(const char* message)
 {
   if (mOwner)
     return mOwner->ShowStatus(message);
   return NS_ERROR_FAILURE;
 }
 nsresult
 nsNPAPIPluginInstance::AsyncSetWindow(NPWindow& window)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 void
 nsNPAPIPluginInstance::URLRedirectResponse(void* notifyData, NPBool allow)
 {
   if (!notifyData) {
     return;
   }
   uint32_t listenerCount = mStreamListeners.Length();
   for (uint32_t i = 0; i < listenerCount; i++) {
     nsNPAPIPluginStreamListener* currentListener = mStreamListeners[i];
     if (currentListener->GetNotifyData() == notifyData) {
       currentListener->URLRedirectResponse(allow);
     }
   }
 }
 NPError
 nsNPAPIPluginInstance::InitAsyncSurface(NPSize *size, NPImageFormat format,
                                         void *initData, NPAsyncSurface *surface)
 {
   if (mOwner)
     return mOwner->InitAsyncSurface(size, format, initData, surface);
   return NPERR_GENERIC_ERROR;
 }
 NPError
 nsNPAPIPluginInstance::FinalizeAsyncSurface(NPAsyncSurface *surface)
 {
   if (mOwner)
     return mOwner->FinalizeAsyncSurface(surface);
   return NPERR_GENERIC_ERROR;
 }
 void
 nsNPAPIPluginInstance::SetCurrentAsyncSurface(NPAsyncSurface *surface, NPRect *changed)
 {
   if (mOwner)
     mOwner->SetCurrentAsyncSurface(surface, changed);
 }
 class CarbonEventModelFailureEvent : public nsRunnable {
 public:
   nsCOMPtr<nsIContent> mContent;
   CarbonEventModelFailureEvent(nsIContent* aContent)
     : mContent(aContent)
   {}
   ~CarbonEventModelFailureEvent() {}
   NS_IMETHOD Run();
 };
 NS_IMETHODIMP
 CarbonEventModelFailureEvent::Run()
 {
   nsString type = NS_LITERAL_STRING("npapi-carbon-event-model-failure");
   nsContentUtils::DispatchTrustedEvent(mContent->GetDocument(), mContent,
                                        type, true, true);
   return NS_OK;
 }
 void
 nsNPAPIPluginInstance::CarbonNPAPIFailure()
 {
   nsCOMPtr<nsIDOMElement> element;
   GetDOMElement(getter_AddRefs(element));
   if (!element) {
     return;
   }
   nsCOMPtr<nsIContent> content(do_QueryInterface(element));
   if (!content) {
     return;
   }
   nsCOMPtr<nsIRunnable> e = new CarbonEventModelFailureEvent(content);
   nsresult rv = NS_DispatchToCurrentThread(e);
   if (NS_FAILED(rv)) {
     NS_WARNING("Failed to dispatch CarbonEventModelFailureEvent.");
   }
 }
 static bool
 GetJavaVersionFromMimetype(nsPluginTag* pluginTag, nsCString& version)
 {
   for (uint32_t i = 0; i < pluginTag->mMimeTypes.Length(); ++i) {
     nsCString type = pluginTag->mMimeTypes[i];
     nsAutoCString jpi("application/x-java-applet;jpi-version=");
     int32_t idx = type.Find(jpi, false, 0, -1);
     if (idx != 0) {
       continue;
     }
     type.Cut(0, jpi.Length());
     if (type.IsEmpty()) {
       continue;
     }
     type.ReplaceChar('_', '.');
     version = type;
     return true;
   }
   return false;
 }
 void
 nsNPAPIPluginInstance::CheckJavaC2PJSObjectQuirk(uint16_t paramCount,
                                                  const char* const* paramNames,
                                                  const char* const* paramValues)
 {
   if (!mMIMEType || !mPlugin) {
     return;
   }
   nsPluginTagType tagtype;
   nsresult rv = GetTagType(&tagtype);
   if (NS_FAILED(rv) ||
       (tagtype != nsPluginTagType_Applet)) {
     return;
   }
   nsRefPtr<nsPluginHost> pluginHost = nsPluginHost::GetInst();
   if (!pluginHost) {
     return;
   }
   nsPluginTag* pluginTag = pluginHost->TagForPlugin(mPlugin);
   if (!pluginTag ||
       !pluginTag->mIsJavaPlugin) {
     return;
   }
   // check the params for "code" being present and non-empty
   bool haveCodeParam = false;
   bool isCodeParamEmpty = true;
   for (uint16_t i = paramCount; i > 0; --i) {
     if (PL_strcasecmp(paramNames[i - 1], "code") == 0) {
       haveCodeParam = true;
       if (strlen(paramValues[i - 1]) > 0) {
         isCodeParamEmpty = false;
       }
       break;
     }
   }
   // Due to the Java version being specified inconsistently across platforms
   // check the version via the mimetype for choosing specific Java versions
   nsCString javaVersion;
   if (!GetJavaVersionFromMimetype(pluginTag, javaVersion)) {
     return;
   }
   mozilla::Version version = javaVersion.get();
   if (version >= "1.7.0.4") {
     return;
   }
   if (!haveCodeParam && version >= "1.6.0.34" && version < "1.7") {
     return;
   }
   if (haveCodeParam && !isCodeParamEmpty) {
     return;
   }
   mHaveJavaC2PJSObjectQuirk = true;
 }
 double
 nsNPAPIPluginInstance::GetContentsScaleFactor()
 {
   double scaleFactor = 1.0;
   if (mOwner) {
     mOwner->GetContentsScaleFactor(&scaleFactor);
   }
   return scaleFactor;
 }

The Tor Browser / annotate

dom/plugins/base/nsNPAPIPluginInstance.cpp@b8a032363ba2 (annotated)

dom/plugins/base/nsNPAPIPluginInstance.cpp