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gecko-dev/dom/plugins/ipc/PluginInstanceChild.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: sw=4 ts=4 et :
* 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 "PluginBackgroundDestroyer.h"
#include "PluginInstanceChild.h"
#include "PluginModuleChild.h"
#include "BrowserStreamChild.h"
#include "StreamNotifyChild.h"
#include "PluginProcessChild.h"
#include "gfxASurface.h"
#include "gfxPlatform.h"
#include "gfx2DGlue.h"
#include "nsNPAPIPluginInstance.h"
#include "mozilla/gfx/2D.h"
#ifdef MOZ_X11
#include "gfxXlibSurface.h"
#endif
#ifdef XP_WIN
#include "mozilla/D3DMessageUtils.h"
#include "mozilla/gfx/SharedDIBSurface.h"
#include "nsCrashOnException.h"
#include "gfxWindowsPlatform.h"
extern const wchar_t* kFlashFullscreenClass;
using mozilla::gfx::SharedDIBSurface;
#endif
#include "gfxSharedImageSurface.h"
#include "gfxUtils.h"
#include "gfxAlphaRecovery.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/BasicEvents.h"
#include "mozilla/ipc/MessageChannel.h"
#include "mozilla/AutoRestore.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/UniquePtr.h"
#include "ImageContainer.h"
using namespace mozilla;
using mozilla::ipc::ProcessChild;
using namespace mozilla::plugins;
using namespace mozilla::layers;
using namespace mozilla::gfx;
using namespace mozilla::widget;
using namespace std;
#ifdef MOZ_WIDGET_GTK
#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include <gdk/gdk.h>
#include "gtk2xtbin.h"
#elif defined(OS_WIN)
#include <windows.h>
#include <windowsx.h>
#include "mozilla/widget/WinMessages.h"
#include "mozilla/widget/WinModifierKeyState.h"
#include "mozilla/widget/WinNativeEventData.h"
#include "nsWindowsDllInterceptor.h"
#include "X11UndefineNone.h"
typedef BOOL (WINAPI *User32TrackPopupMenu)(HMENU hMenu,
UINT uFlags,
int x,
int y,
int nReserved,
HWND hWnd,
CONST RECT *prcRect);
static WindowsDllInterceptor sUser32Intercept;
static HWND sWinlessPopupSurrogateHWND = nullptr;
static WindowsDllInterceptor::FuncHookType<User32TrackPopupMenu> sUser32TrackPopupMenuStub;
static WindowsDllInterceptor sImm32Intercept;
static WindowsDllInterceptor::FuncHookType<decltype(&ImmGetContext)> sImm32ImmGetContextStub;
static WindowsDllInterceptor::FuncHookType<decltype(&ImmGetCompositionStringW)> sImm32ImmGetCompositionStringStub;
static WindowsDllInterceptor::FuncHookType<decltype(&ImmSetCandidateWindow)> sImm32ImmSetCandidateWindowStub;
static WindowsDllInterceptor::FuncHookType<decltype(&ImmNotifyIME)> sImm32ImmNotifyIME;
static WindowsDllInterceptor::FuncHookType<decltype(&ImmAssociateContextEx)> sImm32ImmAssociateContextExStub;
static PluginInstanceChild* sCurrentPluginInstance = nullptr;
static const HIMC sHookIMC = (const HIMC)0xefefefef;
using mozilla::gfx::SharedDIB;
// Flash WM_USER message delay time for PostDelayedTask. Borrowed
// from Chromium's web plugin delegate src. See 'flash msg throttling
// helpers' section for details.
const int kFlashWMUSERMessageThrottleDelayMs = 5;
static const TCHAR kPluginIgnoreSubclassProperty[] = TEXT("PluginIgnoreSubclassProperty");
#elif defined(XP_MACOSX)
#include <ApplicationServices/ApplicationServices.h>
#include "PluginUtilsOSX.h"
#endif // defined(XP_MACOSX)
/**
* We can't use gfxPlatform::CreateDrawTargetForSurface() because calling
* gfxPlatform::GetPlatform() instantiates the prefs service, and that's not
* allowed from processes other than the main process. So we have our own
* version here.
*/
static RefPtr<DrawTarget>
CreateDrawTargetForSurface(gfxASurface *aSurface)
{
SurfaceFormat format = aSurface->GetSurfaceFormat();
RefPtr<DrawTarget> drawTarget =
Factory::CreateDrawTargetForCairoSurface(aSurface->CairoSurface(),
aSurface->GetSize(),
&format);
if (!drawTarget) {
MOZ_CRASH("CreateDrawTargetForSurface failed in plugin");
}
return drawTarget;
}
bool PluginInstanceChild::sIsIMEComposing = false;
PluginInstanceChild::PluginInstanceChild(const NPPluginFuncs* aPluginIface,
const nsCString& aMimeType,
const InfallibleTArray<nsCString>& aNames,
const InfallibleTArray<nsCString>& aValues)
: mPluginIface(aPluginIface)
, mMimeType(aMimeType)
, mNames(aNames)
, mValues(aValues)
#if defined(XP_DARWIN) || defined (XP_WIN)
, mContentsScaleFactor(1.0)
#endif
, mCSSZoomFactor(0.0)
, mPostingKeyEvents(0)
, mPostingKeyEventsOutdated(0)
, mDrawingModel(kDefaultDrawingModel)
, mCurrentDirectSurface(nullptr)
, mAsyncInvalidateMutex("PluginInstanceChild::mAsyncInvalidateMutex")
, mAsyncInvalidateTask(0)
, mCachedWindowActor(nullptr)
, mCachedElementActor(nullptr)
#if defined(OS_WIN)
, mPluginWindowHWND(0)
, mPluginWndProc(0)
, mPluginParentHWND(0)
, mCachedWinlessPluginHWND(0)
, mWinlessPopupSurrogateHWND(0)
, mWinlessThrottleOldWndProc(0)
, mWinlessHiddenMsgHWND(0)
#endif // OS_WIN
#if defined(MOZ_WIDGET_COCOA)
#if defined(__i386__)
, mEventModel(NPEventModelCarbon)
#endif
, mShColorSpace(nullptr)
, mShContext(nullptr)
, mCGLayer(nullptr)
, mCARefreshTimer(0)
, mCurrentEvent(nullptr)
#endif
, mLayersRendering(false)
#ifdef XP_WIN
, mCurrentSurfaceActor(nullptr)
, mBackSurfaceActor(nullptr)
#endif
, mAccumulatedInvalidRect(0,0,0,0)
, mIsTransparent(false)
, mSurfaceType(gfxSurfaceType::Max)
, mPendingPluginCall(false)
, mDoAlphaExtraction(false)
, mHasPainted(false)
, mSurfaceDifferenceRect(0,0,0,0)
, mDestroyed(false)
#ifdef XP_WIN
, mLastKeyEventConsumed(false)
, mLastEnableIMEState(true)
#endif // #ifdef XP_WIN
, mStackDepth(0)
{
memset(&mWindow, 0, sizeof(mWindow));
mWindow.type = NPWindowTypeWindow;
mData.ndata = (void*) this;
mData.pdata = nullptr;
#if defined(MOZ_X11) && defined(XP_UNIX) && !defined(XP_MACOSX)
mWindow.ws_info = &mWsInfo;
memset(&mWsInfo, 0, sizeof(mWsInfo));
#ifdef MOZ_WIDGET_GTK
mWsInfo.display = nullptr;
#else
mWsInfo.display = DefaultXDisplay();
#endif
#endif // MOZ_X11 && XP_UNIX && !XP_MACOSX
#if defined(OS_WIN)
InitPopupMenuHook();
InitImm32Hook();
#endif // OS_WIN
}
PluginInstanceChild::~PluginInstanceChild()
{
#if defined(OS_WIN)
NS_ASSERTION(!mPluginWindowHWND, "Destroying PluginInstanceChild without NPP_Destroy?");
// In the event that we registered for audio device changes, stop.
PluginModuleChild* chromeInstance = PluginModuleChild::GetChrome();
if (chromeInstance) {
chromeInstance->PluginRequiresAudioDeviceChanges(this, false);
}
#endif
#if defined(MOZ_WIDGET_COCOA)
if (mShColorSpace) {
::CGColorSpaceRelease(mShColorSpace);
}
if (mShContext) {
::CGContextRelease(mShContext);
}
if (mCGLayer) {
PluginUtilsOSX::ReleaseCGLayer(mCGLayer);
}
if (mDrawingModel == NPDrawingModelCoreAnimation) {
UnscheduleTimer(mCARefreshTimer);
}
#endif
}
NPError
PluginInstanceChild::DoNPP_New()
{
// unpack the arguments into a C format
int argc = mNames.Length();
NS_ASSERTION(argc == (int) mValues.Length(),
"argn.length != argv.length");
UniquePtr<char*[]> argn(new char*[1 + argc]);
UniquePtr<char*[]> argv(new char*[1 + argc]);
argn[argc] = 0;
argv[argc] = 0;
for (int i = 0; i < argc; ++i) {
argn[i] = const_cast<char*>(NullableStringGet(mNames[i]));
argv[i] = const_cast<char*>(NullableStringGet(mValues[i]));
}
NPP npp = GetNPP();
NPError rv = mPluginIface->newp((char*)NullableStringGet(mMimeType), npp,
NP_EMBED, argc, argn.get(), argv.get(), 0);
if (NPERR_NO_ERROR != rv) {
return rv;
}
if (!Initialize()) {
rv = NPERR_MODULE_LOAD_FAILED_ERROR;
}
return rv;
}
int
PluginInstanceChild::GetQuirks()
{
return PluginModuleChild::GetChrome()->GetQuirks();
}
NPError
PluginInstanceChild::InternalGetNPObjectForValue(NPNVariable aValue,
NPObject** aObject)
{
PluginScriptableObjectChild* actor = nullptr;
NPError result = NPERR_NO_ERROR;
switch (aValue) {
case NPNVWindowNPObject:
if (!(actor = mCachedWindowActor)) {
PPluginScriptableObjectChild* actorProtocol;
CallNPN_GetValue_NPNVWindowNPObject(&actorProtocol, &result);
if (result == NPERR_NO_ERROR) {
actor = mCachedWindowActor =
static_cast<PluginScriptableObjectChild*>(actorProtocol);
NS_ASSERTION(actor, "Null actor!");
PluginModuleChild::sBrowserFuncs.retainobject(
actor->GetObject(false));
}
}
break;
case NPNVPluginElementNPObject:
if (!(actor = mCachedElementActor)) {
PPluginScriptableObjectChild* actorProtocol;
CallNPN_GetValue_NPNVPluginElementNPObject(&actorProtocol,
&result);
if (result == NPERR_NO_ERROR) {
actor = mCachedElementActor =
static_cast<PluginScriptableObjectChild*>(actorProtocol);
NS_ASSERTION(actor, "Null actor!");
PluginModuleChild::sBrowserFuncs.retainobject(
actor->GetObject(false));
}
}
break;
default:
MOZ_ASSERT_UNREACHABLE("Don't know what to do with this value "
"type!");
}
#ifdef DEBUG
{
NPError currentResult;
PPluginScriptableObjectChild* currentActor = nullptr;
switch (aValue) {
case NPNVWindowNPObject:
CallNPN_GetValue_NPNVWindowNPObject(&currentActor,
&currentResult);
break;
case NPNVPluginElementNPObject:
CallNPN_GetValue_NPNVPluginElementNPObject(&currentActor,
&currentResult);
break;
default:
MOZ_ASSERT(false);
}
// Make sure that the current actor returned by the parent matches our
// cached actor!
NS_ASSERTION(!currentActor ||
static_cast<PluginScriptableObjectChild*>(currentActor) ==
actor, "Cached actor is out of date!");
}
#endif
if (result != NPERR_NO_ERROR) {
return result;
}
NPObject* object = actor->GetObject(false);
NS_ASSERTION(object, "Null object?!");
*aObject = PluginModuleChild::sBrowserFuncs.retainobject(object);
return NPERR_NO_ERROR;
}
NPError
PluginInstanceChild::NPN_GetValue(NPNVariable aVar,
void* aValue)
{
PLUGIN_LOG_DEBUG(("%s (aVar=%i)", FULLFUNCTION, (int) aVar));
AssertPluginThread();
AutoStackHelper guard(this);
switch(aVar) {
#if defined(MOZ_X11)
case NPNVToolkit:
*((NPNToolkitType*)aValue) = NPNVGtk2;
return NPERR_NO_ERROR;
case NPNVxDisplay:
if (!mWsInfo.display) {
// We are called before Initialize() so we have to call it now.
if (!Initialize()) {
return NPERR_GENERIC_ERROR;
}
NS_ASSERTION(mWsInfo.display, "We should have a valid display!");
}
*(void **)aValue = mWsInfo.display;
return NPERR_NO_ERROR;
#elif defined(OS_WIN)
case NPNVToolkit:
return NPERR_GENERIC_ERROR;
#endif
case NPNVprivateModeBool: {
bool v = false;
NPError result;
if (!CallNPN_GetValue_NPNVprivateModeBool(&v, &result)) {
return NPERR_GENERIC_ERROR;
}
*static_cast<NPBool*>(aValue) = v;
return result;
}
case NPNVdocumentOrigin: {
nsCString v;
NPError result;
if (!CallNPN_GetValue_NPNVdocumentOrigin(&v, &result)) {
return NPERR_GENERIC_ERROR;
}
if (result == NPERR_NO_ERROR ||
(GetQuirks() &
QUIRK_FLASH_RETURN_EMPTY_DOCUMENT_ORIGIN)) {
*static_cast<char**>(aValue) = ToNewCString(v);
}
return result;
}
case NPNVWindowNPObject: // Intentional fall-through
case NPNVPluginElementNPObject: {
NPObject* object;
NPError result = InternalGetNPObjectForValue(aVar, &object);
if (result == NPERR_NO_ERROR) {
*((NPObject**)aValue) = object;
}
return result;
}
case NPNVnetscapeWindow: {
#ifdef XP_WIN
if (mWindow.type == NPWindowTypeDrawable) {
if (mCachedWinlessPluginHWND) {
*static_cast<HWND*>(aValue) = mCachedWinlessPluginHWND;
return NPERR_NO_ERROR;
}
NPError result;
if (!CallNPN_GetValue_NPNVnetscapeWindow(&mCachedWinlessPluginHWND, &result)) {
return NPERR_GENERIC_ERROR;
}
*static_cast<HWND*>(aValue) = mCachedWinlessPluginHWND;
return result;
}
else {
*static_cast<HWND*>(aValue) = mPluginWindowHWND;
return NPERR_NO_ERROR;
}
#elif defined(MOZ_X11)
NPError result;
CallNPN_GetValue_NPNVnetscapeWindow(static_cast<XID*>(aValue), &result);
return result;
#else
return NPERR_GENERIC_ERROR;
#endif
}
case NPNVsupportsAsyncBitmapSurfaceBool: {
bool value = false;
CallNPN_GetValue_SupportsAsyncBitmapSurface(&value);
*((NPBool*)aValue) = value;
return NPERR_NO_ERROR;
}
#ifdef XP_WIN
case NPNVsupportsAsyncWindowsDXGISurfaceBool: {
bool value = false;
CallNPN_GetValue_SupportsAsyncDXGISurface(&value);
*((NPBool*)aValue) = value;
return NPERR_NO_ERROR;
}
#endif
#ifdef XP_WIN
case NPNVpreferredDXGIAdapter: {
DxgiAdapterDesc desc;
if (!CallNPN_GetValue_PreferredDXGIAdapter(&desc)) {
return NPERR_GENERIC_ERROR;
}
*reinterpret_cast<DXGI_ADAPTER_DESC*>(aValue) = desc.ToDesc();
return NPERR_NO_ERROR;
}
#endif
#ifdef XP_MACOSX
case NPNVsupportsCoreGraphicsBool: {
*((NPBool*)aValue) = true;
return NPERR_NO_ERROR;
}
case NPNVsupportsCoreAnimationBool: {
*((NPBool*)aValue) = true;
return NPERR_NO_ERROR;
}
case NPNVsupportsInvalidatingCoreAnimationBool: {
*((NPBool*)aValue) = true;
return NPERR_NO_ERROR;
}
case NPNVsupportsCompositingCoreAnimationPluginsBool: {
*((NPBool*)aValue) = true;
return NPERR_NO_ERROR;
}
case NPNVsupportsCocoaBool: {
*((NPBool*)aValue) = true;
return NPERR_NO_ERROR;
}
#ifndef NP_NO_CARBON
case NPNVsupportsCarbonBool: {
*((NPBool*)aValue) = false;
return NPERR_NO_ERROR;
}
#endif
case NPNVsupportsUpdatedCocoaTextInputBool: {
*static_cast<NPBool*>(aValue) = true;
return NPERR_NO_ERROR;
}
#ifndef NP_NO_QUICKDRAW
case NPNVsupportsQuickDrawBool: {
*((NPBool*)aValue) = false;
return NPERR_NO_ERROR;
}
#endif /* NP_NO_QUICKDRAW */
#endif /* XP_MACOSX */
#if defined(XP_MACOSX) || defined(XP_WIN)
case NPNVcontentsScaleFactor: {
*static_cast<double*>(aValue) = mContentsScaleFactor;
return NPERR_NO_ERROR;
}
#endif /* defined(XP_MACOSX) || defined(XP_WIN) */
case NPNVCSSZoomFactor: {
*static_cast<double*>(aValue) = mCSSZoomFactor;
return NPERR_NO_ERROR;
}
#ifdef DEBUG
case NPNVjavascriptEnabledBool:
case NPNVasdEnabledBool:
case NPNVisOfflineBool:
case NPNVSupportsXEmbedBool:
case NPNVSupportsWindowless:
MOZ_FALLTHROUGH_ASSERT("NPNVariable should be handled in "
"PluginModuleChild.");
#endif
default:
MOZ_LOG(GetPluginLog(), LogLevel::Warning,
("In PluginInstanceChild::NPN_GetValue: Unhandled NPNVariable %i (%s)",
(int) aVar, NPNVariableToString(aVar)));
return NPERR_GENERIC_ERROR;
}
}
#ifdef MOZ_WIDGET_COCOA
#define DEFAULT_REFRESH_MS 20 // CoreAnimation: 50 FPS
void
CAUpdate(NPP npp, uint32_t timerID) {
static_cast<PluginInstanceChild*>(npp->ndata)->Invalidate();
}
void
PluginInstanceChild::Invalidate()
{
NPRect windowRect = {0, 0, uint16_t(mWindow.height),
uint16_t(mWindow.width)};
InvalidateRect(&windowRect);
}
#endif
NPError
PluginInstanceChild::NPN_SetValue(NPPVariable aVar, void* aValue)
{
MOZ_LOG(GetPluginLog(), LogLevel::Debug, ("%s (aVar=%i, aValue=%p)",
FULLFUNCTION, (int) aVar, aValue));
AssertPluginThread();
AutoStackHelper guard(this);
switch (aVar) {
case NPPVpluginWindowBool: {
NPError rv;
bool windowed = (NPBool) (intptr_t) aValue;
if (windowed) {
return NPERR_GENERIC_ERROR;
}
if (!CallNPN_SetValue_NPPVpluginWindow(windowed, &rv))
return NPERR_GENERIC_ERROR;
mWindow.type = NPWindowTypeDrawable;
return rv;
}
case NPPVpluginTransparentBool: {
NPError rv;
mIsTransparent = (!!aValue);
if (!CallNPN_SetValue_NPPVpluginTransparent(mIsTransparent, &rv))
return NPERR_GENERIC_ERROR;
return rv;
}
case NPPVpluginUsesDOMForCursorBool: {
NPError rv = NPERR_GENERIC_ERROR;
if (!CallNPN_SetValue_NPPVpluginUsesDOMForCursor((NPBool)(intptr_t)aValue, &rv)) {
return NPERR_GENERIC_ERROR;
}
return rv;
}
case NPPVpluginDrawingModel: {
NPError rv;
int drawingModel = (int16_t) (intptr_t) aValue;
if (!CallNPN_SetValue_NPPVpluginDrawingModel(drawingModel, &rv))
return NPERR_GENERIC_ERROR;
mDrawingModel = drawingModel;
#ifdef XP_MACOSX
if (drawingModel == NPDrawingModelCoreAnimation) {
mCARefreshTimer = ScheduleTimer(DEFAULT_REFRESH_MS, true, CAUpdate);
}
#endif
PLUGIN_LOG_DEBUG((" Plugin requested drawing model id #%i\n",
mDrawingModel));
return rv;
}
#ifdef XP_MACOSX
case NPPVpluginEventModel: {
NPError rv;
int eventModel = (int16_t) (intptr_t) aValue;
if (!CallNPN_SetValue_NPPVpluginEventModel(eventModel, &rv))
return NPERR_GENERIC_ERROR;
#if defined(__i386__)
mEventModel = static_cast<NPEventModel>(eventModel);
#endif
PLUGIN_LOG_DEBUG((" Plugin requested event model id # %i\n",
eventModel));
return rv;
}
#endif
case NPPVpluginIsPlayingAudio: {
NPError rv = NPERR_GENERIC_ERROR;
if (!CallNPN_SetValue_NPPVpluginIsPlayingAudio((NPBool)(intptr_t)aValue, &rv)) {
return NPERR_GENERIC_ERROR;
}
return rv;
}
#ifdef XP_WIN
case NPPVpluginRequiresAudioDeviceChanges: {
// Many other NPN_SetValue variables are forwarded to our
// PluginInstanceParent, which runs on a content process. We
// instead forward this message to the PluginModuleParent, which runs
// on the chrome process. This is because our audio
// API calls should run the chrome proc, not content.
NPError rv = NPERR_GENERIC_ERROR;
PluginModuleChild* chromeInstance = PluginModuleChild::GetChrome();
if (chromeInstance) {
rv = chromeInstance->PluginRequiresAudioDeviceChanges(this,
(NPBool)(intptr_t)aValue);
}
return rv;
}
#endif
default:
MOZ_LOG(GetPluginLog(), LogLevel::Warning,
("In PluginInstanceChild::NPN_SetValue: Unhandled NPPVariable %i (%s)",
(int) aVar, NPPVariableToString(aVar)));
return NPERR_GENERIC_ERROR;
}
}
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_GetValue_NPPVpluginWantsAllNetworkStreams(
bool* wantsAllStreams, NPError* rv)
{
AssertPluginThread();
AutoStackHelper guard(this);
uint32_t value = 0;
if (!mPluginIface->getvalue) {
*rv = NPERR_GENERIC_ERROR;
}
else {
*rv = mPluginIface->getvalue(GetNPP(), NPPVpluginWantsAllNetworkStreams,
&value);
}
*wantsAllStreams = value;
return IPC_OK();
}
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_GetValue_NPPVpluginScriptableNPObject(
PPluginScriptableObjectChild** aValue,
NPError* aResult)
{
AssertPluginThread();
AutoStackHelper guard(this);
NPObject* object = nullptr;
NPError result = NPERR_GENERIC_ERROR;
if (mPluginIface->getvalue) {
result = mPluginIface->getvalue(GetNPP(), NPPVpluginScriptableNPObject,
&object);
}
if (result == NPERR_NO_ERROR && object) {
PluginScriptableObjectChild* actor = GetActorForNPObject(object);
// If we get an actor then it has retained. Otherwise we don't need it
// any longer.
PluginModuleChild::sBrowserFuncs.releaseobject(object);
if (actor) {
*aValue = actor;
*aResult = NPERR_NO_ERROR;
return IPC_OK();
}
NS_ERROR("Failed to get actor!");
result = NPERR_GENERIC_ERROR;
}
else {
result = NPERR_GENERIC_ERROR;
}
*aValue = nullptr;
*aResult = result;
return IPC_OK();
}
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_GetValue_NPPVpluginNativeAccessibleAtkPlugId(
nsCString* aPlugId,
NPError* aResult)
{
AssertPluginThread();
AutoStackHelper guard(this);
#if MOZ_ACCESSIBILITY_ATK
char* plugId = nullptr;
NPError result = NPERR_GENERIC_ERROR;
if (mPluginIface->getvalue) {
result = mPluginIface->getvalue(GetNPP(),
NPPVpluginNativeAccessibleAtkPlugId,
&plugId);
}
*aPlugId = nsCString(plugId);
*aResult = result;
return IPC_OK();
#else
MOZ_CRASH("shouldn't be called on non-ATK platforms");
#endif
}
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_SetValue_NPNVprivateModeBool(const bool& value,
NPError* result)
{
if (!mPluginIface->setvalue) {
*result = NPERR_GENERIC_ERROR;
return IPC_OK();
}
NPBool v = value;
*result = mPluginIface->setvalue(GetNPP(), NPNVprivateModeBool, &v);
return IPC_OK();
}
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_SetValue_NPNVCSSZoomFactor(const double& value,
NPError* result)
{
if (!mPluginIface->setvalue) {
*result = NPERR_GENERIC_ERROR;
return IPC_OK();
}
mCSSZoomFactor = value;
double v = value;
*result = mPluginIface->setvalue(GetNPP(), NPNVCSSZoomFactor, &v);
return IPC_OK();
}
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_SetValue_NPNVmuteAudioBool(const bool& value,
NPError* result)
{
if (!mPluginIface->setvalue) {
*result = NPERR_GENERIC_ERROR;
return IPC_OK();
}
NPBool v = value;
*result = mPluginIface->setvalue(GetNPP(), NPNVmuteAudioBool, &v);
return IPC_OK();
}
#if defined(XP_WIN)
NPError
PluginInstanceChild::DefaultAudioDeviceChanged(NPAudioDeviceChangeDetails& details)
{
if (!mPluginIface->setvalue) {
return NPERR_GENERIC_ERROR;
}
return mPluginIface->setvalue(GetNPP(), NPNVaudioDeviceChangeDetails, (void*)&details);
}
NPError
PluginInstanceChild::AudioDeviceStateChanged(NPAudioDeviceStateChanged& aDeviceState)
{
if (!mPluginIface->setvalue) {
return NPERR_GENERIC_ERROR;
}
return mPluginIface->setvalue(GetNPP(), NPNVaudioDeviceStateChanged, (void*)&aDeviceState);
}
#endif
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_HandleEvent(const NPRemoteEvent& event,
int16_t* handled)
{
PLUGIN_LOG_DEBUG_FUNCTION;
AssertPluginThread();
AutoStackHelper guard(this);
#if defined(MOZ_X11) && defined(DEBUG)
if (GraphicsExpose == event.event.type)
PLUGIN_LOG_DEBUG((" received drawable 0x%lx\n",
event.event.xgraphicsexpose.drawable));
#endif
#ifdef XP_MACOSX
// Mac OS X does not define an NPEvent structure. It defines more specific types.
NPCocoaEvent evcopy = event.event;
// Make sure we reset mCurrentEvent in case of an exception
AutoRestore<const NPCocoaEvent*> savePreviousEvent(mCurrentEvent);
// Track the current event for NPN_PopUpContextMenu.
mCurrentEvent = &event.event;
#else
// Make a copy since we may modify values.
NPEvent evcopy = event.event;
#endif
#if defined(XP_MACOSX) || defined(XP_WIN)
// event.contentsScaleFactor <= 0 is a signal we shouldn't use it,
// for example when AnswerNPP_HandleEvent() is called from elsewhere
// in the child process (not via rpc code from the parent process).
if (event.contentsScaleFactor > 0) {
mContentsScaleFactor = event.contentsScaleFactor;
}
#endif
#ifdef OS_WIN
// FIXME/bug 567645: temporarily drop the "dummy event" on the floor
if (WM_NULL == evcopy.event)
return IPC_OK();
*handled = WinlessHandleEvent(evcopy);
return IPC_OK();
#endif
// XXX A previous call to mPluginIface->event might block, e.g. right click
// for context menu. Still, we might get here again, calling into the plugin
// a second time while it's in the previous call.
if (!mPluginIface->event)
*handled = false;
else
*handled = mPluginIface->event(&mData, reinterpret_cast<void*>(&evcopy));
#ifdef XP_MACOSX
// Release any reference counted objects created in the child process.
if (evcopy.type == NPCocoaEventKeyDown ||
evcopy.type == NPCocoaEventKeyUp) {
::CFRelease((CFStringRef)evcopy.data.key.characters);
::CFRelease((CFStringRef)evcopy.data.key.charactersIgnoringModifiers);
}
else if (evcopy.type == NPCocoaEventTextInput) {
::CFRelease((CFStringRef)evcopy.data.text.text);
}
#endif
#ifdef MOZ_X11
if (GraphicsExpose == event.event.type) {
// Make sure the X server completes the drawing before the parent
// draws on top and destroys the Drawable.
//
// XSync() waits for the X server to complete. Really this child
// process does not need to wait; the parent is the process that needs
// to wait. A possibly-slightly-better alternative would be to send
// an X event to the parent that the parent would wait for.
XSync(mWsInfo.display, False);
}
#endif
return IPC_OK();
}
#ifdef XP_MACOSX
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_HandleEvent_Shmem(const NPRemoteEvent& event,
Shmem&& mem,
int16_t* handled,
Shmem* rtnmem)
{
PLUGIN_LOG_DEBUG_FUNCTION;
AssertPluginThread();
AutoStackHelper guard(this);
PaintTracker pt;
NPCocoaEvent evcopy = event.event;
mContentsScaleFactor = event.contentsScaleFactor;
if (evcopy.type == NPCocoaEventDrawRect) {
int scaleFactor = ceil(mContentsScaleFactor);
if (!mShColorSpace) {
mShColorSpace = CreateSystemColorSpace();
if (!mShColorSpace) {
PLUGIN_LOG_DEBUG(("Could not allocate ColorSpace."));
*handled = false;
*rtnmem = mem;
return IPC_OK();
}
}
if (!mShContext) {
void* cgContextByte = mem.get<char>();
mShContext = ::CGBitmapContextCreate(cgContextByte,
mWindow.width * scaleFactor,
mWindow.height * scaleFactor, 8,
mWindow.width * 4 * scaleFactor, mShColorSpace,
kCGImageAlphaPremultipliedFirst |
kCGBitmapByteOrder32Host);
if (!mShContext) {
PLUGIN_LOG_DEBUG(("Could not allocate CGBitmapContext."));
*handled = false;
*rtnmem = mem;
return IPC_OK();
}
}
CGRect clearRect = ::CGRectMake(0, 0, mWindow.width, mWindow.height);
::CGContextClearRect(mShContext, clearRect);
evcopy.data.draw.context = mShContext;
} else {
PLUGIN_LOG_DEBUG(("Invalid event type for AnswerNNP_HandleEvent_Shmem."));
*handled = false;
*rtnmem = mem;
return IPC_OK();
}
if (!mPluginIface->event) {
*handled = false;
} else {
::CGContextSaveGState(evcopy.data.draw.context);
*handled = mPluginIface->event(&mData, reinterpret_cast<void*>(&evcopy));
::CGContextRestoreGState(evcopy.data.draw.context);
}
*rtnmem = mem;
return IPC_OK();
}
#else
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_HandleEvent_Shmem(const NPRemoteEvent& event,
Shmem&& mem,
int16_t* handled,
Shmem* rtnmem)
{
MOZ_CRASH("not reached.");
*rtnmem = mem;
return IPC_OK();
}
#endif
#ifdef XP_MACOSX
void CallCGDraw(CGContextRef ref, void* aPluginInstance, nsIntRect aUpdateRect) {
PluginInstanceChild* pluginInstance = (PluginInstanceChild*)aPluginInstance;
pluginInstance->CGDraw(ref, aUpdateRect);
}
bool
PluginInstanceChild::CGDraw(CGContextRef ref, nsIntRect aUpdateRect) {
NPCocoaEvent drawEvent;
drawEvent.type = NPCocoaEventDrawRect;
drawEvent.version = 0;
drawEvent.data.draw.x = aUpdateRect.x;
drawEvent.data.draw.y = aUpdateRect.y;
drawEvent.data.draw.width = aUpdateRect.width;
drawEvent.data.draw.height = aUpdateRect.height;
drawEvent.data.draw.context = ref;
NPRemoteEvent remoteDrawEvent = {drawEvent};
// Signal to AnswerNPP_HandleEvent() not to use this value
remoteDrawEvent.contentsScaleFactor = -1.0;
int16_t handled;
AnswerNPP_HandleEvent(remoteDrawEvent, &handled);
return handled == true;
}
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_HandleEvent_IOSurface(const NPRemoteEvent& event,
const uint32_t &surfaceid,
int16_t* handled)
{
PLUGIN_LOG_DEBUG_FUNCTION;
AssertPluginThread();
AutoStackHelper guard(this);
PaintTracker pt;
NPCocoaEvent evcopy = event.event;
mContentsScaleFactor = event.contentsScaleFactor;
RefPtr<MacIOSurface> surf = MacIOSurface::LookupSurface(surfaceid,
mContentsScaleFactor);
if (!surf) {
NS_ERROR("Invalid IOSurface.");
*handled = false;
return IPC_FAIL_NO_REASON(this);
}
if (!mCARenderer) {
mCARenderer = new nsCARenderer();
}
if (evcopy.type == NPCocoaEventDrawRect) {
mCARenderer->AttachIOSurface(surf);
if (!mCARenderer->isInit()) {
void *caLayer = nullptr;
NPError result = mPluginIface->getvalue(GetNPP(),
NPPVpluginCoreAnimationLayer,
&caLayer);
if (result != NPERR_NO_ERROR || !caLayer) {
PLUGIN_LOG_DEBUG(("Plugin requested CoreAnimation but did not "
"provide CALayer."));
*handled = false;
return IPC_FAIL_NO_REASON(this);
}
mCARenderer->SetupRenderer(caLayer, mWindow.width, mWindow.height,
mContentsScaleFactor,
GetQuirks() & QUIRK_ALLOW_OFFLINE_RENDERER ?
ALLOW_OFFLINE_RENDERER : DISALLOW_OFFLINE_RENDERER);
// Flash needs to have the window set again after this step
if (mPluginIface->setwindow)
(void) mPluginIface->setwindow(&mData, &mWindow);
}
} else {
PLUGIN_LOG_DEBUG(("Invalid event type for "
"AnswerNNP_HandleEvent_IOSurface."));
*handled = false;
return IPC_FAIL_NO_REASON(this);
}
mCARenderer->Render(mWindow.width, mWindow.height,
mContentsScaleFactor, nullptr);
return IPC_OK();
}
#else
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_HandleEvent_IOSurface(const NPRemoteEvent& event,
const uint32_t &surfaceid,
int16_t* handled)
{
MOZ_CRASH("NPP_HandleEvent_IOSurface is a OSX-only message");
}
#endif
mozilla::ipc::IPCResult
PluginInstanceChild::RecvWindowPosChanged(const NPRemoteEvent& event)
{
NS_ASSERTION(!mLayersRendering && !mPendingPluginCall,
"Shouldn't be receiving WindowPosChanged with layer rendering");
#ifdef OS_WIN
int16_t dontcare;
return AnswerNPP_HandleEvent(event, &dontcare);
#else
MOZ_CRASH("WindowPosChanged is a windows-only message");
#endif
}
mozilla::ipc::IPCResult
PluginInstanceChild::RecvContentsScaleFactorChanged(const double& aContentsScaleFactor)
{
#if defined(XP_MACOSX) || defined(XP_WIN)
mContentsScaleFactor = aContentsScaleFactor;
#if defined(XP_MACOSX)
if (mShContext) {
// Release the shared context so that it is reallocated
// with the new size.
::CGContextRelease(mShContext);
mShContext = nullptr;
}
#endif
return IPC_OK();
#else
MOZ_CRASH("ContentsScaleFactorChanged is an Windows or OSX only message");
#endif
}
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerCreateChildPluginWindow(NativeWindowHandle* aChildPluginWindow)
{
#if defined(XP_WIN)
MOZ_ASSERT(!mPluginWindowHWND);
if (!CreatePluginWindow()) {
return IPC_FAIL_NO_REASON(this);
}
MOZ_ASSERT(mPluginWindowHWND);
*aChildPluginWindow = mPluginWindowHWND;
return IPC_OK();
#else
MOZ_ASSERT_UNREACHABLE("CreateChildPluginWindow not implemented!");
return IPC_FAIL_NO_REASON(this);
#endif
}
mozilla::ipc::IPCResult
PluginInstanceChild::RecvCreateChildPopupSurrogate(const NativeWindowHandle& aNetscapeWindow)
{
#if defined(XP_WIN)
mCachedWinlessPluginHWND = aNetscapeWindow;
CreateWinlessPopupSurrogate();
return IPC_OK();
#else
MOZ_ASSERT_UNREACHABLE("CreateChildPluginWindow not implemented!");
return IPC_FAIL_NO_REASON(this);
#endif
}
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_SetWindow(const NPRemoteWindow& aWindow)
{
PLUGIN_LOG_DEBUG(("%s (aWindow=<window: 0x%" PRIx64 ", x: %d, y: %d, width: %d, height: %d>)",
FULLFUNCTION,
aWindow.window,
aWindow.x, aWindow.y,
aWindow.width, aWindow.height));
NS_ASSERTION(!mLayersRendering && !mPendingPluginCall,
"Shouldn't be receiving NPP_SetWindow with layer rendering");
AssertPluginThread();
AutoStackHelper guard(this);
#if defined(MOZ_X11) && defined(XP_UNIX) && !defined(XP_MACOSX)
NS_ASSERTION(mWsInfo.display, "We should have a valid display!");
// The minimum info is sent over IPC to allow this
// code to determine the rest.
mWindow.x = aWindow.x;
mWindow.y = aWindow.y;
mWindow.width = aWindow.width;
mWindow.height = aWindow.height;
mWindow.clipRect = aWindow.clipRect;
mWindow.type = aWindow.type;
mWsInfo.colormap = aWindow.colormap;
int depth;
FindVisualAndDepth(mWsInfo.display, aWindow.visualID,
&mWsInfo.visual, &depth);
mWsInfo.depth = depth;
PLUGIN_LOG_DEBUG(
("[InstanceChild][%p] Answer_SetWindow w=<x=%d,y=%d, w=%d,h=%d>, clip=<l=%d,t=%d,r=%d,b=%d>",
this, mWindow.x, mWindow.y, mWindow.width, mWindow.height,
mWindow.clipRect.left, mWindow.clipRect.top, mWindow.clipRect.right, mWindow.clipRect.bottom));
if (mPluginIface->setwindow)
(void) mPluginIface->setwindow(&mData, &mWindow);
#elif defined(OS_WIN)
switch (aWindow.type) {
case NPWindowTypeWindow:
{
MOZ_ASSERT(mPluginWindowHWND,
"Child plugin window must exist before call to SetWindow");
HWND parentHWND = reinterpret_cast<HWND>(aWindow.window);
if (mPluginWindowHWND != parentHWND) {
mPluginParentHWND = parentHWND;
ShowWindow(mPluginWindowHWND, SW_SHOWNA);
}
SizePluginWindow(aWindow.width, aWindow.height);
mWindow.window = (void*)mPluginWindowHWND;
mWindow.x = aWindow.x;
mWindow.y = aWindow.y;
mWindow.width = aWindow.width;
mWindow.height = aWindow.height;
mWindow.type = aWindow.type;
mContentsScaleFactor = aWindow.contentsScaleFactor;
if (mPluginIface->setwindow) {
SetProp(mPluginWindowHWND, kPluginIgnoreSubclassProperty, (HANDLE)1);
(void) mPluginIface->setwindow(&mData, &mWindow);
WNDPROC wndProc = reinterpret_cast<WNDPROC>(
GetWindowLongPtr(mPluginWindowHWND, GWLP_WNDPROC));
if (wndProc != PluginWindowProc) {
mPluginWndProc = reinterpret_cast<WNDPROC>(
SetWindowLongPtr(mPluginWindowHWND, GWLP_WNDPROC,
reinterpret_cast<LONG_PTR>(PluginWindowProc)));
NS_ASSERTION(mPluginWndProc != PluginWindowProc, "WTF?");
}
RemoveProp(mPluginWindowHWND, kPluginIgnoreSubclassProperty);
HookSetWindowLongPtr();
}
}
break;
default:
MOZ_ASSERT_UNREACHABLE("Bad plugin window type.");
return IPC_FAIL_NO_REASON(this);
break;
}
#elif defined(XP_MACOSX)
mWindow.x = aWindow.x;
mWindow.y = aWindow.y;
mWindow.width = aWindow.width;
mWindow.height = aWindow.height;
mWindow.clipRect = aWindow.clipRect;
mWindow.type = aWindow.type;
mContentsScaleFactor = aWindow.contentsScaleFactor;
if (mShContext) {
// Release the shared context so that it is reallocated
// with the new size.
::CGContextRelease(mShContext);
mShContext = nullptr;
}
if (mPluginIface->setwindow)
(void) mPluginIface->setwindow(&mData, &mWindow);
#elif defined(ANDROID)
// TODO: Need Android impl
#elif defined(MOZ_WIDGET_UIKIT)
// Don't care
#else
# error Implement me for your OS
#endif
return IPC_OK();
}
bool
PluginInstanceChild::Initialize()
{
#ifdef MOZ_WIDGET_GTK
if (mWsInfo.display) {
// Already initialized
return true;
}
// Request for windowless plugins is set in newp(), before this call.
if (mWindow.type == NPWindowTypeWindow) {
return false;
}
mWsInfo.display = DefaultXDisplay();
#endif
#if defined(XP_MACOSX) && defined(__i386__)
// If an i386 Mac OS X plugin has selected the Carbon event model then
// we have to fail. We do not support putting Carbon event model plugins
// out of process. Note that Carbon is the default model so out of process
// plugins need to actively negotiate something else in order to work
// out of process.
if (EventModel() == NPEventModelCarbon) {
return false;
}
#endif
return true;
}
mozilla::ipc::IPCResult
PluginInstanceChild::RecvHandledWindowedPluginKeyEvent(
const NativeEventData& aKeyEventData,
const bool& aIsConsumed)
{
#if defined(OS_WIN)
const WinNativeKeyEventData* eventData =
static_cast<const WinNativeKeyEventData*>(aKeyEventData);
switch (eventData->mMessage) {
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
case WM_KEYUP:
case WM_SYSKEYUP:
mLastKeyEventConsumed = aIsConsumed;
break;
case WM_CHAR:
case WM_SYSCHAR:
case WM_DEADCHAR:
case WM_SYSDEADCHAR:
// If preceding keydown or keyup event is consumed by the chrome
// process, we should consume WM_*CHAR messages too.
if (mLastKeyEventConsumed) {
return IPC_OK();
}
default:
MOZ_CRASH("Needs to handle all messages posted to the parent");
}
#endif // #if defined(OS_WIN)
// Unknown key input shouldn't be sent to plugin for security.
// XXX Is this possible if a plugin process which posted the message
// already crashed and this plugin process is recreated?
if (NS_WARN_IF(!mPostingKeyEvents && !mPostingKeyEventsOutdated)) {
return IPC_OK();
}
// If there is outdated posting key events, we should consume the key
// events.
if (mPostingKeyEventsOutdated) {
mPostingKeyEventsOutdated--;
return IPC_OK();
}
mPostingKeyEvents--;
// If composition has been started after posting the key event,
// we should discard the event since if we send the event to plugin,
// the plugin may be confused and the result may be broken because
// the event order is shuffled.
if (aIsConsumed || sIsIMEComposing) {
return IPC_OK();
}
#if defined(OS_WIN)
UINT message = 0;
switch (eventData->mMessage) {
case WM_KEYDOWN:
message = MOZ_WM_KEYDOWN;
break;
case WM_SYSKEYDOWN:
message = MOZ_WM_SYSKEYDOWN;
break;
case WM_KEYUP:
message = MOZ_WM_KEYUP;
break;
case WM_SYSKEYUP:
message = MOZ_WM_SYSKEYUP;
break;
case WM_CHAR:
message = MOZ_WM_CHAR;
break;
case WM_SYSCHAR:
message = MOZ_WM_SYSCHAR;
break;
case WM_DEADCHAR:
message = MOZ_WM_DEADCHAR;
break;
case WM_SYSDEADCHAR:
message = MOZ_WM_SYSDEADCHAR;
break;
default:
MOZ_CRASH("Needs to handle all messages posted to the parent");
}
PluginWindowProcInternal(mPluginWindowHWND, message,
eventData->mWParam, eventData->mLParam);
#endif
return IPC_OK();
}
#if defined(OS_WIN)
static const TCHAR kWindowClassName[] = TEXT("GeckoPluginWindow");
static const TCHAR kPluginInstanceChildProperty[] = TEXT("PluginInstanceChildProperty");
static const TCHAR kFlashThrottleProperty[] = TEXT("MozillaFlashThrottleProperty");
// static
bool
PluginInstanceChild::RegisterWindowClass()
{
static bool alreadyRegistered = false;
if (alreadyRegistered)
return true;
alreadyRegistered = true;
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_DBLCLKS;
wcex.lpfnWndProc = DummyWindowProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = GetModuleHandle(nullptr);
wcex.hIcon = 0;
wcex.hCursor = 0;
wcex.hbrBackground = reinterpret_cast<HBRUSH>(COLOR_WINDOW + 1);
wcex.lpszMenuName = 0;
wcex.lpszClassName = kWindowClassName;
wcex.hIconSm = 0;
return RegisterClassEx(&wcex) ? true : false;
}
bool
PluginInstanceChild::CreatePluginWindow()
{
// already initialized
if (mPluginWindowHWND)
return true;
if (!RegisterWindowClass())
return false;
mPluginWindowHWND =
CreateWindowEx(WS_EX_LEFT | WS_EX_LTRREADING |
WS_EX_NOPARENTNOTIFY | // XXXbent Get rid of this!
WS_EX_RIGHTSCROLLBAR,
kWindowClassName, 0,
WS_POPUP | WS_CLIPCHILDREN | WS_CLIPSIBLINGS, 0, 0,
0, 0, nullptr, 0, GetModuleHandle(nullptr), 0);
if (!mPluginWindowHWND)
return false;
if (!SetProp(mPluginWindowHWND, kPluginInstanceChildProperty, this))
return false;
// Apparently some plugins require an ASCII WndProc.
SetWindowLongPtrA(mPluginWindowHWND, GWLP_WNDPROC,
reinterpret_cast<LONG_PTR>(DefWindowProcA));
return true;
}
void
PluginInstanceChild::DestroyPluginWindow()
{
if (mPluginWindowHWND) {
// Unsubclass the window.
WNDPROC wndProc = reinterpret_cast<WNDPROC>(
GetWindowLongPtr(mPluginWindowHWND, GWLP_WNDPROC));
// Removed prior to SetWindowLongPtr, see HookSetWindowLongPtr.
RemoveProp(mPluginWindowHWND, kPluginInstanceChildProperty);
if (wndProc == PluginWindowProc) {
NS_ASSERTION(mPluginWndProc, "Should have old proc here!");
SetWindowLongPtr(mPluginWindowHWND, GWLP_WNDPROC,
reinterpret_cast<LONG_PTR>(mPluginWndProc));
mPluginWndProc = 0;
}
DestroyWindow(mPluginWindowHWND);
mPluginWindowHWND = 0;
}
}
void
PluginInstanceChild::SizePluginWindow(int width,
int height)
{
if (mPluginWindowHWND) {
mPluginSize.x = width;
mPluginSize.y = height;
SetWindowPos(mPluginWindowHWND, nullptr, 0, 0, width, height,
SWP_NOZORDER | SWP_NOREPOSITION);
}
}
// See chromium's webplugin_delegate_impl.cc for explanation of this function.
// static
LRESULT CALLBACK
PluginInstanceChild::DummyWindowProc(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam)
{
return CallWindowProc(DefWindowProc, hWnd, message, wParam, lParam);
}
// static
LRESULT CALLBACK
PluginInstanceChild::PluginWindowProc(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam)
{
return mozilla::CallWindowProcCrashProtected(PluginWindowProcInternal, hWnd, message, wParam, lParam);
}
// static
LRESULT CALLBACK
PluginInstanceChild::PluginWindowProcInternal(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam)
{
NS_ASSERTION(!mozilla::ipc::MessageChannel::IsPumpingMessages(),
"Failed to prevent a nonqueued message from running!");
PluginInstanceChild* self = reinterpret_cast<PluginInstanceChild*>(
GetProp(hWnd, kPluginInstanceChildProperty));
if (!self) {
MOZ_ASSERT_UNREACHABLE("Badness!");
return 0;
}
NS_ASSERTION(self->mPluginWindowHWND == hWnd, "Wrong window!");
NS_ASSERTION(self->mPluginWndProc != PluginWindowProc, "Self-referential windowproc. Infinite recursion will happen soon.");
bool isIMECompositionMessage = false;
switch (message) {
// Adobe's shockwave positions the plugin window relative to the browser
// frame when it initializes. With oopp disabled, this wouldn't have an
// effect. With oopp, GeckoPluginWindow is a child of the parent plugin
// window, so the move offsets the child within the parent. Generally
// we don't want plugins moving or sizing our window, so we prevent
// these changes here.
case WM_WINDOWPOSCHANGING: {
WINDOWPOS* pos = reinterpret_cast<WINDOWPOS*>(lParam);
if (pos &&
(!(pos->flags & SWP_NOMOVE) || !(pos->flags & SWP_NOSIZE))) {
pos->x = pos->y = 0;
pos->cx = self->mPluginSize.x;
pos->cy = self->mPluginSize.y;
LRESULT res = CallWindowProc(self->mPluginWndProc,
hWnd, message, wParam, lParam);
pos->x = pos->y = 0;
pos->cx = self->mPluginSize.x;
pos->cy = self->mPluginSize.y;
return res;
}
break;
}
case WM_SETFOCUS:
// If this gets focus, ensure that there is no pending key events.
// Even if there were, we should ignore them for performance reason.
// Although, such case shouldn't occur.
NS_WARNING_ASSERTION(self->mPostingKeyEvents == 0,
"pending events");
self->mPostingKeyEvents = 0;
self->mLastKeyEventConsumed = false;
break;
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
case WM_KEYUP:
case WM_SYSKEYUP:
if (self->MaybePostKeyMessage(message, wParam, lParam)) {
// If PreHandleKeyMessage() posts the message to the parent
// process, we need to wait RecvOnKeyEventHandledBeforePlugin()
// to be called.
return 0; // Consume current message temporarily.
}
break;
case MOZ_WM_KEYDOWN:
message = WM_KEYDOWN;
break;
case MOZ_WM_SYSKEYDOWN:
message = WM_SYSKEYDOWN;
break;
case MOZ_WM_KEYUP:
message = WM_KEYUP;
break;
case MOZ_WM_SYSKEYUP:
message = WM_SYSKEYUP;
break;
case MOZ_WM_CHAR:
message = WM_CHAR;
break;
case MOZ_WM_SYSCHAR:
message = WM_SYSCHAR;
break;
case MOZ_WM_DEADCHAR:
message = WM_DEADCHAR;
break;
case MOZ_WM_SYSDEADCHAR:
message = WM_SYSDEADCHAR;
break;
case WM_IME_STARTCOMPOSITION:
isIMECompositionMessage = true;
sIsIMEComposing = true;
break;
case WM_IME_ENDCOMPOSITION:
isIMECompositionMessage = true;
sIsIMEComposing = false;
break;
case WM_IME_COMPOSITION:
isIMECompositionMessage = true;
// XXX Some old IME may not send WM_IME_COMPOSITION_START or
// WM_IME_COMPSOITION_END properly. So, we need to check
// WM_IME_COMPSOITION and if it includes commit string.
sIsIMEComposing = !(lParam & GCS_RESULTSTR);
break;
// The plugin received keyboard focus, let the parent know so the dom
// is up to date.
case WM_MOUSEACTIVATE:
self->CallPluginFocusChange(true);
break;
}
// When a composition is committed, there may be pending key
// events which were posted to the parent process before starting
// the composition. Then, we shouldn't handle it since they are
// now outdated.
if (isIMECompositionMessage && !sIsIMEComposing) {
self->mPostingKeyEventsOutdated += self->mPostingKeyEvents;
self->mPostingKeyEvents = 0;
}
// Prevent lockups due to plugins making rpc calls when the parent
// is making a synchronous SendMessage call to the child window. Add
// more messages as needed.
if ((InSendMessageEx(nullptr)&(ISMEX_REPLIED|ISMEX_SEND)) == ISMEX_SEND) {
switch(message) {
case WM_CHILDACTIVATE:
case WM_KILLFOCUS:
ReplyMessage(0);
break;
}
}
if (message == WM_KILLFOCUS) {
self->CallPluginFocusChange(false);
}
if (message == WM_USER+1 &&
(self->GetQuirks() & QUIRK_FLASH_THROTTLE_WMUSER_EVENTS)) {
self->FlashThrottleMessage(hWnd, message, wParam, lParam, true);
return 0;
}
NS_ASSERTION(self->mPluginWndProc != PluginWindowProc,
"Self-referential windowproc happened inside our hook proc. "
"Infinite recursion will happen soon.");
LRESULT res = CallWindowProc(self->mPluginWndProc, hWnd, message, wParam,
lParam);
// Make sure capture is released by the child on mouse events. Fixes a
// problem with flash full screen mode mouse input. Appears to be
// caused by a bug in flash, since we are not setting the capture
// on the window.
if (message == WM_LBUTTONDOWN &&
self->GetQuirks() & QUIRK_FLASH_FIXUP_MOUSE_CAPTURE) {
wchar_t szClass[26];
HWND hwnd = GetForegroundWindow();
if (hwnd && GetClassNameW(hwnd, szClass,
sizeof(szClass)/sizeof(char16_t)) &&
!wcscmp(szClass, kFlashFullscreenClass)) {
ReleaseCapture();
SetFocus(hwnd);
}
}
if (message == WM_CLOSE) {
self->DestroyPluginWindow();
}
if (message == WM_NCDESTROY) {
RemoveProp(hWnd, kPluginInstanceChildProperty);
}
return res;
}
bool
PluginInstanceChild::ShouldPostKeyMessage(UINT message,
WPARAM wParam,
LPARAM lParam)
{
// If there is a composition, we shouldn't post the key message to the
// parent process because we cannot handle IME messages asynchronously.
// Therefore, if we posted key events to the parent process, the event
// order of the posted key events and IME events are shuffled.
if (sIsIMEComposing) {
return false;
}
// If there are some pending keyboard events which are not handled in
// the parent process, we should post the message for avoiding to shuffle
// the key event order.
if (mPostingKeyEvents) {
return true;
}
// If we are not waiting calls of RecvOnKeyEventHandledBeforePlugin(),
// we don't need to post WM_*CHAR messages.
switch (message) {
case WM_CHAR:
case WM_SYSCHAR:
case WM_DEADCHAR:
case WM_SYSDEADCHAR:
return false;
}
// Otherwise, we should post key message which might match with a
// shortcut key.
ModifierKeyState modifierState;
if (!modifierState.MaybeMatchShortcutKey()) {
// For better UX, we shouldn't use IPC when user tries to
// input character(s).
return false;
}
// Ignore modifier key events and keys already handled by IME.
switch (wParam) {
case VK_SHIFT:
case VK_CONTROL:
case VK_MENU:
case VK_LWIN:
case VK_RWIN:
case VK_CAPITAL:
case VK_NUMLOCK:
case VK_SCROLL:
// Following virtual keycodes shouldn't come with WM_(SYS)KEY* message
// but check it for avoiding unnecessary cross process communication.
case VK_LSHIFT:
case VK_RSHIFT:
case VK_LCONTROL:
case VK_RCONTROL:
case VK_LMENU:
case VK_RMENU:
case VK_PROCESSKEY:
case VK_PACKET:
case 0xFF: // 0xFF could be sent with unidentified key by the layout.
return false;
default:
break;
}
return true;
}
bool
PluginInstanceChild::MaybePostKeyMessage(UINT message,
WPARAM wParam,
LPARAM lParam)
{
if (!ShouldPostKeyMessage(message, wParam, lParam)) {
return false;
}
ModifierKeyState modifierState;
WinNativeKeyEventData winNativeKeyData(message, wParam, lParam,
modifierState);
NativeEventData nativeKeyData;
nativeKeyData.Copy(winNativeKeyData);
if (NS_WARN_IF(!SendOnWindowedPluginKeyEvent(nativeKeyData))) {
return false;
}
mPostingKeyEvents++;
return true;
}
/* set window long ptr hook for flash */
/*
* Flash will reset the subclass of our widget at various times.
* (Notably when entering and exiting full screen mode.) This
* occurs independent of the main plugin window event procedure.
* We trap these subclass calls to prevent our subclass hook from
* getting dropped.
* Note, ascii versions can be nixed once flash versions < 10.1
* are considered obsolete.
*/
#ifdef _WIN64
typedef LONG_PTR
(WINAPI *User32SetWindowLongPtrA)(HWND hWnd,
int nIndex,
LONG_PTR dwNewLong);
typedef LONG_PTR
(WINAPI *User32SetWindowLongPtrW)(HWND hWnd,
int nIndex,
LONG_PTR dwNewLong);
static WindowsDllInterceptor::FuncHookType<User32SetWindowLongPtrA> sUser32SetWindowLongAHookStub;
static WindowsDllInterceptor::FuncHookType<User32SetWindowLongPtrW> sUser32SetWindowLongWHookStub;
#else
typedef LONG
(WINAPI *User32SetWindowLongA)(HWND hWnd,
int nIndex,
LONG dwNewLong);
typedef LONG
(WINAPI *User32SetWindowLongW)(HWND hWnd,
int nIndex,
LONG dwNewLong);
static WindowsDllInterceptor::FuncHookType<User32SetWindowLongA> sUser32SetWindowLongAHookStub;
static WindowsDllInterceptor::FuncHookType<User32SetWindowLongW> sUser32SetWindowLongWHookStub;
#endif
extern LRESULT CALLBACK
NeuteredWindowProc(HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam);
const wchar_t kOldWndProcProp[] = L"MozillaIPCOldWndProc";
// static
bool
PluginInstanceChild::SetWindowLongHookCheck(HWND hWnd,
int nIndex,
LONG_PTR newLong)
{
// Let this go through if it's not a subclass
if (nIndex != GWLP_WNDPROC ||
// if it's not a subclassed plugin window
!GetProp(hWnd, kPluginInstanceChildProperty) ||
// if we're not disabled
GetProp(hWnd, kPluginIgnoreSubclassProperty) ||
// if the subclass is set to a known procedure
newLong == reinterpret_cast<LONG_PTR>(PluginWindowProc) ||
newLong == reinterpret_cast<LONG_PTR>(NeuteredWindowProc) ||
newLong == reinterpret_cast<LONG_PTR>(DefWindowProcA) ||
newLong == reinterpret_cast<LONG_PTR>(DefWindowProcW) ||
// if the subclass is a WindowsMessageLoop subclass restore
GetProp(hWnd, kOldWndProcProp))
return true;
// prevent the subclass
return false;
}
#ifdef _WIN64
LONG_PTR WINAPI
PluginInstanceChild::SetWindowLongPtrAHook(HWND hWnd,
int nIndex,
LONG_PTR newLong)
#else
LONG WINAPI
PluginInstanceChild::SetWindowLongAHook(HWND hWnd,
int nIndex,
LONG newLong)
#endif
{
if (SetWindowLongHookCheck(hWnd, nIndex, newLong))
return sUser32SetWindowLongAHookStub(hWnd, nIndex, newLong);
// Set flash's new subclass to get the result.
LONG_PTR proc = sUser32SetWindowLongAHookStub(hWnd, nIndex, newLong);
// We already checked this in SetWindowLongHookCheck
PluginInstanceChild* self = reinterpret_cast<PluginInstanceChild*>(
GetProp(hWnd, kPluginInstanceChildProperty));
// Hook our subclass back up, just like we do on setwindow.
WNDPROC currentProc =
reinterpret_cast<WNDPROC>(GetWindowLongPtr(hWnd, GWLP_WNDPROC));
if (currentProc != PluginWindowProc) {
self->mPluginWndProc =
reinterpret_cast<WNDPROC>(sUser32SetWindowLongWHookStub(hWnd, nIndex,
reinterpret_cast<LONG_PTR>(PluginWindowProc)));
NS_ASSERTION(self->mPluginWndProc != PluginWindowProc, "Infinite recursion coming up!");
}
return proc;
}
#ifdef _WIN64
LONG_PTR WINAPI
PluginInstanceChild::SetWindowLongPtrWHook(HWND hWnd,
int nIndex,
LONG_PTR newLong)
#else
LONG WINAPI
PluginInstanceChild::SetWindowLongWHook(HWND hWnd,
int nIndex,
LONG newLong)
#endif
{
if (SetWindowLongHookCheck(hWnd, nIndex, newLong))
return sUser32SetWindowLongWHookStub(hWnd, nIndex, newLong);
// Set flash's new subclass to get the result.
LONG_PTR proc = sUser32SetWindowLongWHookStub(hWnd, nIndex, newLong);
// We already checked this in SetWindowLongHookCheck
PluginInstanceChild* self = reinterpret_cast<PluginInstanceChild*>(
GetProp(hWnd, kPluginInstanceChildProperty));
// Hook our subclass back up, just like we do on setwindow.
WNDPROC currentProc =
reinterpret_cast<WNDPROC>(GetWindowLongPtr(hWnd, GWLP_WNDPROC));
if (currentProc != PluginWindowProc) {
self->mPluginWndProc =
reinterpret_cast<WNDPROC>(sUser32SetWindowLongWHookStub(hWnd, nIndex,
reinterpret_cast<LONG_PTR>(PluginWindowProc)));
NS_ASSERTION(self->mPluginWndProc != PluginWindowProc, "Infinite recursion coming up!");
}
return proc;
}
void
PluginInstanceChild::HookSetWindowLongPtr()
{
if (!(GetQuirks() & QUIRK_FLASH_HOOK_SETLONGPTR)) {
return;
}
sUser32Intercept.Init("user32.dll");
#ifdef _WIN64
sUser32SetWindowLongAHookStub.Set(sUser32Intercept, "SetWindowLongPtrA",
&SetWindowLongPtrAHook);
sUser32SetWindowLongWHookStub.Set(sUser32Intercept, "SetWindowLongPtrW",
&SetWindowLongPtrWHook);
#else
sUser32SetWindowLongAHookStub.Set(sUser32Intercept, "SetWindowLongA",
&SetWindowLongAHook);
sUser32SetWindowLongWHookStub.Set(sUser32Intercept, "SetWindowLongW",
&SetWindowLongWHook);
#endif
}
/* windowless track popup menu helpers */
BOOL
WINAPI
PluginInstanceChild::TrackPopupHookProc(HMENU hMenu,
UINT uFlags,
int x,
int y,
int nReserved,
HWND hWnd,
CONST RECT *prcRect)
{
if (!sUser32TrackPopupMenuStub) {
NS_ERROR("TrackPopupMenu stub isn't set! Badness!");
return 0;
}
// Only change the parent when we know this is a context on the plugin
// surface within the browser. Prevents resetting the parent on child ui
// displayed by plugins that have working parent-child relationships.
wchar_t szClass[21];
bool haveClass = GetClassNameW(hWnd, szClass, ArrayLength(szClass));
if (!haveClass ||
(wcscmp(szClass, L"MozillaWindowClass") &&
wcscmp(szClass, L"SWFlash_Placeholder"))) {
// Unrecognized parent
return sUser32TrackPopupMenuStub(hMenu, uFlags, x, y, nReserved,
hWnd, prcRect);
}
// Called on an unexpected event, warn.
if (!sWinlessPopupSurrogateHWND) {
NS_WARNING(
"Untraced TrackPopupHookProc call! Menu might not work right!");
return sUser32TrackPopupMenuStub(hMenu, uFlags, x, y, nReserved,
hWnd, prcRect);
}
HWND surrogateHwnd = sWinlessPopupSurrogateHWND;
sWinlessPopupSurrogateHWND = nullptr;
// Popups that don't use TPM_RETURNCMD expect a final command message
// when an item is selected and the context closes. Since we replace
// the parent, we need to forward this back to the real parent so it
// can act on the menu item selected.
bool isRetCmdCall = (uFlags & TPM_RETURNCMD);
DWORD res = sUser32TrackPopupMenuStub(hMenu, uFlags|TPM_RETURNCMD, x, y,
nReserved, surrogateHwnd, prcRect);
if (!isRetCmdCall && res) {
SendMessage(hWnd, WM_COMMAND, MAKEWPARAM(res, 0), 0);
}
return res;
}
void
PluginInstanceChild::InitPopupMenuHook()
{
if (!(GetQuirks() & QUIRK_WINLESS_TRACKPOPUP_HOOK)) {
return;
}
// Note, once WindowsDllInterceptor is initialized for a module,
// it remains initialized for that particular module for it's
// lifetime. Additional instances are needed if other modules need
// to be hooked.
sUser32Intercept.Init("user32.dll");
sUser32TrackPopupMenuStub.Set(sUser32Intercept, "TrackPopupMenu",
&TrackPopupHookProc);
}
void
PluginInstanceChild::CreateWinlessPopupSurrogate()
{
// already initialized
if (mWinlessPopupSurrogateHWND)
return;
mWinlessPopupSurrogateHWND =
CreateWindowEx(WS_EX_NOPARENTNOTIFY, L"Static", nullptr, WS_POPUP,
0, 0, 0, 0, nullptr, 0, GetModuleHandle(nullptr), 0);
if (!mWinlessPopupSurrogateHWND) {
NS_ERROR("CreateWindowEx failed for winless placeholder!");
return;
}
SendSetNetscapeWindowAsParent(mWinlessPopupSurrogateHWND);
}
// static
HIMC
PluginInstanceChild::ImmGetContextProc(HWND aWND)
{
if (!sCurrentPluginInstance) {
return sImm32ImmGetContextStub(aWND);
}
wchar_t szClass[21];
int haveClass = GetClassNameW(aWND, szClass, ArrayLength(szClass));
if (!haveClass || wcscmp(szClass, L"SWFlash_PlaceholderX")) {
NS_WARNING("We cannot recongnize hooked window class");
return sImm32ImmGetContextStub(aWND);
}
return sHookIMC;
}
// static
LONG
PluginInstanceChild::ImmGetCompositionStringProc(HIMC aIMC, DWORD aIndex,
LPVOID aBuf, DWORD aLen)
{
if (aIMC != sHookIMC) {
return sImm32ImmGetCompositionStringStub(aIMC, aIndex, aBuf, aLen);
}
if (!sCurrentPluginInstance) {
return IMM_ERROR_GENERAL;
}
AutoTArray<uint8_t, 16> dist;
int32_t length = 0; // IMM_ERROR_NODATA
sCurrentPluginInstance->SendGetCompositionString(aIndex, &dist, &length);
if (length == IMM_ERROR_NODATA || length == IMM_ERROR_GENERAL) {
return length;
}
if (aBuf && aLen >= static_cast<DWORD>(length)) {
memcpy(aBuf, dist.Elements(), length);
}
return length;
}
// staitc
BOOL
PluginInstanceChild::ImmSetCandidateWindowProc(HIMC aIMC, LPCANDIDATEFORM aForm)
{
if (aIMC != sHookIMC) {
return sImm32ImmSetCandidateWindowStub(aIMC, aForm);
}
if (!sCurrentPluginInstance ||
aForm->dwIndex != 0) {
return FALSE;
}
CandidateWindowPosition position;
position.mPoint.x = aForm->ptCurrentPos.x;
position.mPoint.y = aForm->ptCurrentPos.y;
position.mExcludeRect = !!(aForm->dwStyle & CFS_EXCLUDE);
if (position.mExcludeRect) {
position.mRect.x = aForm->rcArea.left;
position.mRect.y = aForm->rcArea.top;
position.mRect.width = aForm->rcArea.right - aForm->rcArea.left;
position.mRect.height = aForm->rcArea.bottom - aForm->rcArea.top;
}
sCurrentPluginInstance->SendSetCandidateWindow(position);
return TRUE;
}
// static
BOOL
PluginInstanceChild::ImmNotifyIME(HIMC aIMC, DWORD aAction, DWORD aIndex,
DWORD aValue)
{
if (aIMC != sHookIMC) {
return sImm32ImmNotifyIME(aIMC, aAction, aIndex, aValue);
}
// We only supports NI_COMPOSITIONSTR because Flash uses it only
if (!sCurrentPluginInstance ||
aAction != NI_COMPOSITIONSTR ||
(aIndex != CPS_COMPLETE && aIndex != CPS_CANCEL)) {
return FALSE;
}
sCurrentPluginInstance->SendRequestCommitOrCancel(aAction == CPS_COMPLETE);
return TRUE;
}
// static
BOOL
PluginInstanceChild::ImmAssociateContextExProc(HWND hWND, HIMC hImc,
DWORD dwFlags)
{
PluginInstanceChild* self = sCurrentPluginInstance;
if (!self) {
// If ImmAssociateContextEx calls unexpected window message,
// we can use child instance object from window property if available.
self = reinterpret_cast<PluginInstanceChild*>(
GetProp(hWND, kFlashThrottleProperty));
NS_WARNING_ASSERTION(self, "Cannot find PluginInstanceChild");
}
// HIMC is always nullptr on Flash's windowless
if (!hImc && self) {
// Store the last IME state since Flash may call ImmAssociateContextEx
// before taking focus.
self->mLastEnableIMEState = !!(dwFlags & IACE_DEFAULT);
self->SendEnableIME(self->mLastEnableIMEState);
}
return sImm32ImmAssociateContextExStub(hWND, hImc, dwFlags);
}
void
PluginInstanceChild::InitImm32Hook()
{
if (!(GetQuirks() & QUIRK_WINLESS_HOOK_IME)) {
return;
}
// When using windowless plugin, IMM API won't work due ot OOP.
//
// ImmReleaseContext on Windows 7+ just returns TRUE only, so we don't
// need to hook this.
sImm32Intercept.Init("imm32.dll");
sImm32ImmGetContextStub.Set(sImm32Intercept, "ImmGetContext",
&ImmGetContextProc);
sImm32ImmGetCompositionStringStub.Set(sImm32Intercept,
"ImmGetCompositionStringW",
&ImmGetCompositionStringProc);
sImm32ImmSetCandidateWindowStub.Set(sImm32Intercept,
"ImmSetCandidateWindow",
&ImmSetCandidateWindowProc);
sImm32ImmNotifyIME.Set(sImm32Intercept, "ImmNotifyIME", &ImmNotifyIME);
sImm32ImmAssociateContextExStub.Set(sImm32Intercept, "ImmAssociateContextEx",
&ImmAssociateContextExProc);
}
void
PluginInstanceChild::DestroyWinlessPopupSurrogate()
{
if (mWinlessPopupSurrogateHWND)
DestroyWindow(mWinlessPopupSurrogateHWND);
mWinlessPopupSurrogateHWND = nullptr;
}
int16_t
PluginInstanceChild::WinlessHandleEvent(NPEvent& event)
{
if (!mPluginIface->event)
return false;
// Events that might generate nested event dispatch loops need
// special handling during delivery.
int16_t handled;
HWND focusHwnd = nullptr;
// TrackPopupMenu will fail if the parent window is not associated with
// our ui thread. So we hook TrackPopupMenu so we can hand in a surrogate
// parent created in the child process.
if ((GetQuirks() & QUIRK_WINLESS_TRACKPOPUP_HOOK) && // XXX turn on by default?
(event.event == WM_RBUTTONDOWN || // flash
event.event == WM_RBUTTONUP)) { // silverlight
sWinlessPopupSurrogateHWND = mWinlessPopupSurrogateHWND;
// A little trick scrounged from chromium's code - set the focus
// to our surrogate parent so keyboard nav events go to the menu.
focusHwnd = SetFocus(mWinlessPopupSurrogateHWND);
}
AutoRestore<PluginInstanceChild *> pluginInstance(sCurrentPluginInstance);
if (event.event == WM_IME_STARTCOMPOSITION ||
event.event == WM_IME_COMPOSITION ||
event.event == WM_LBUTTONDOWN ||
event.event == WM_KILLFOCUS) {
sCurrentPluginInstance = this;
}
MessageLoop* loop = MessageLoop::current();
AutoRestore<bool> modalLoop(loop->os_modal_loop());
handled = mPluginIface->event(&mData, reinterpret_cast<void*>(&event));
sWinlessPopupSurrogateHWND = nullptr;
if (IsWindow(focusHwnd)) {
SetFocus(focusHwnd);
}
// This is hack of Flash's behaviour.
//
// When moving focus from chrome to plugin by mouse click, Gecko sends
// mouse message (such as WM_LBUTTONDOWN etc) at first, then sends
// WM_SETFOCUS. But Flash will call ImmAssociateContextEx on WM_LBUTTONDOWN
// even if it doesn't receive WM_SETFOCUS.
//
// In this situation, after sending mouse message, content process will be
// activated and set input context with PLUGIN. So after activating
// content process, we have to set current IME state again.
if (event.event == WM_SETFOCUS) {
// When focus is changed from chrome process to plugin process,
// Flash may call ImmAssociateContextEx before receiving WM_SETFOCUS.
SendEnableIME(mLastEnableIMEState);
} else if (event.event == WM_KILLFOCUS) {
// Flash always calls ImmAssociateContextEx by taking focus.
// Although this flag doesn't have to be reset, I add it for safety.
mLastEnableIMEState = true;
}
return handled;
}
/* flash msg throttling helpers */
// Flash has the unfortunate habit of flooding dispatch loops with custom
// windowing events they use for timing. We throttle these by dropping the
// delivery priority below any other event, including pending ipc io
// notifications. We do this for both windowed and windowless controls.
// Note flash's windowless msg window can last longer than our instance,
// so we try to unhook when the window is destroyed and in NPP_Destroy.
void
PluginInstanceChild::UnhookWinlessFlashThrottle()
{
// We may have already unhooked
if (!mWinlessThrottleOldWndProc)
return;
WNDPROC tmpProc = mWinlessThrottleOldWndProc;
mWinlessThrottleOldWndProc = nullptr;
NS_ASSERTION(mWinlessHiddenMsgHWND,
"Missing mWinlessHiddenMsgHWND w/subclass set??");
// reset the subclass
SetWindowLongPtr(mWinlessHiddenMsgHWND, GWLP_WNDPROC,
reinterpret_cast<LONG_PTR>(tmpProc));
// Remove our instance prop
RemoveProp(mWinlessHiddenMsgHWND, kFlashThrottleProperty);
mWinlessHiddenMsgHWND = nullptr;
}
// static
LRESULT CALLBACK
PluginInstanceChild::WinlessHiddenFlashWndProc(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam)
{
PluginInstanceChild* self = reinterpret_cast<PluginInstanceChild*>(
GetProp(hWnd, kFlashThrottleProperty));
if (!self) {
MOZ_ASSERT_UNREACHABLE("Badness!");
return 0;
}
NS_ASSERTION(self->mWinlessThrottleOldWndProc,
"Missing subclass procedure!!");
// Throttle
if (message == WM_USER+1) {
self->FlashThrottleMessage(hWnd, message, wParam, lParam, false);
return 0;
}
// Unhook
if (message == WM_CLOSE || message == WM_NCDESTROY) {
WNDPROC tmpProc = self->mWinlessThrottleOldWndProc;
self->UnhookWinlessFlashThrottle();
LRESULT res = CallWindowProc(tmpProc, hWnd, message, wParam, lParam);
return res;
}
return CallWindowProc(self->mWinlessThrottleOldWndProc,
hWnd, message, wParam, lParam);
}
// Enumerate all thread windows looking for flash's hidden message window.
// Once we find it, sub class it so we can throttle user msgs.
// static
BOOL CALLBACK
PluginInstanceChild::EnumThreadWindowsCallback(HWND hWnd,
LPARAM aParam)
{
PluginInstanceChild* self = reinterpret_cast<PluginInstanceChild*>(aParam);
if (!self) {
MOZ_ASSERT_UNREACHABLE("Enum befuddled!");
return FALSE;
}
wchar_t className[64];
if (!GetClassNameW(hWnd, className, sizeof(className)/sizeof(char16_t)))
return TRUE;
if (!wcscmp(className, L"SWFlash_PlaceholderX")) {
WNDPROC oldWndProc =
reinterpret_cast<WNDPROC>(GetWindowLongPtr(hWnd, GWLP_WNDPROC));
// Only set this if we haven't already.
if (oldWndProc != WinlessHiddenFlashWndProc) {
if (self->mWinlessThrottleOldWndProc) {
NS_WARNING("mWinlessThrottleWndProc already set???");
return FALSE;
}
// Subsclass and store self as a property
self->mWinlessHiddenMsgHWND = hWnd;
self->mWinlessThrottleOldWndProc =
reinterpret_cast<WNDPROC>(SetWindowLongPtr(hWnd, GWLP_WNDPROC,
reinterpret_cast<LONG_PTR>(WinlessHiddenFlashWndProc)));
SetProp(hWnd, kFlashThrottleProperty, self);
NS_ASSERTION(self->mWinlessThrottleOldWndProc,
"SetWindowLongPtr failed?!");
}
// Return no matter what once we find the right window.
return FALSE;
}
return TRUE;
}
void
PluginInstanceChild::SetupFlashMsgThrottle()
{
if (mWindow.type == NPWindowTypeDrawable) {
// Search for the flash hidden message window and subclass it. Only
// search for flash windows belonging to our ui thread!
if (mWinlessThrottleOldWndProc)
return;
EnumThreadWindows(GetCurrentThreadId(), EnumThreadWindowsCallback,
reinterpret_cast<LPARAM>(this));
}
else {
// Already setup through quirks and the subclass.
return;
}
}
WNDPROC
PluginInstanceChild::FlashThrottleMsg::GetProc()
{
if (mInstance) {
return mWindowed ? mInstance->mPluginWndProc :
mInstance->mWinlessThrottleOldWndProc;
}
return nullptr;
}
NS_IMETHODIMP
PluginInstanceChild::FlashThrottleMsg::Run()
{
if (!mInstance) {
return NS_OK;
}
mInstance->mPendingFlashThrottleMsgs.RemoveElement(this);
// GetProc() checks mInstance, and pulls the procedure from
// PluginInstanceChild. We don't transport sub-class procedure
// ptrs around in FlashThrottleMsg msgs.
if (!GetProc())
return NS_OK;
// deliver the event to flash
CallWindowProc(GetProc(), GetWnd(), GetMsg(), GetWParam(), GetLParam());
return NS_OK;
}
nsresult
PluginInstanceChild::FlashThrottleMsg::Cancel()
{
MOZ_ASSERT(mInstance);
mInstance = nullptr;
return NS_OK;
}
void
PluginInstanceChild::FlashThrottleMessage(HWND aWnd,
UINT aMsg,
WPARAM aWParam,
LPARAM aLParam,
bool isWindowed)
{
// We save a reference to the FlashThrottleMsg so we can cancel it in
// Destroy if it's still alive.
RefPtr<FlashThrottleMsg> task =
new FlashThrottleMsg(this, aWnd, aMsg, aWParam, aLParam, isWindowed);
mPendingFlashThrottleMsgs.AppendElement(task);
MessageLoop::current()->PostDelayedTask(task.forget(),
kFlashWMUSERMessageThrottleDelayMs);
}
#endif // OS_WIN
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerSetPluginFocus()
{
MOZ_LOG(GetPluginLog(), LogLevel::Debug, ("%s", FULLFUNCTION));
#if defined(OS_WIN)
// Parent is letting us know the dom set focus to the plugin. Note,
// focus can change during transit in certain edge cases, for example
// when a button click brings up a full screen window. Since we send
// this in response to a WM_SETFOCUS event on our parent, the parent
// should have focus when we receive this. If not, ignore the call.
if (::GetFocus() == mPluginWindowHWND)
return IPC_OK();
::SetFocus(mPluginWindowHWND);
return IPC_OK();
#else
MOZ_ASSERT_UNREACHABLE("AnswerSetPluginFocus not implemented!");
return IPC_FAIL_NO_REASON(this);
#endif
}
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerUpdateWindow()
{
MOZ_LOG(GetPluginLog(), LogLevel::Debug, ("%s", FULLFUNCTION));
#if defined(OS_WIN)
if (mPluginWindowHWND) {
RECT rect;
if (GetUpdateRect(GetParent(mPluginWindowHWND), &rect, FALSE)) {
::InvalidateRect(mPluginWindowHWND, &rect, FALSE);
}
UpdateWindow(mPluginWindowHWND);
}
return IPC_OK();
#else
MOZ_ASSERT_UNREACHABLE("AnswerUpdateWindow not implemented!");
return IPC_FAIL_NO_REASON(this);
#endif
}
mozilla::ipc::IPCResult
PluginInstanceChild::RecvNPP_DidComposite()
{
if (mPluginIface->didComposite) {
mPluginIface->didComposite(GetNPP());
}
return IPC_OK();
}
PPluginScriptableObjectChild*
PluginInstanceChild::AllocPPluginScriptableObjectChild()
{
AssertPluginThread();
return new PluginScriptableObjectChild(Proxy);
}
bool
PluginInstanceChild::DeallocPPluginScriptableObjectChild(
PPluginScriptableObjectChild* aObject)
{
AssertPluginThread();
delete aObject;
return true;
}
mozilla::ipc::IPCResult
PluginInstanceChild::RecvPPluginScriptableObjectConstructor(
PPluginScriptableObjectChild* aActor)
{
AssertPluginThread();
// This is only called in response to the parent process requesting the
// creation of an actor. This actor will represent an NPObject that is
// created by the browser and returned to the plugin.
PluginScriptableObjectChild* actor =
static_cast<PluginScriptableObjectChild*>(aActor);
NS_ASSERTION(!actor->GetObject(false), "Actor already has an object?!");
actor->InitializeProxy();
NS_ASSERTION(actor->GetObject(false), "Actor should have an object!");
return IPC_OK();
}
mozilla::ipc::IPCResult
PluginInstanceChild::RecvPBrowserStreamConstructor(
PBrowserStreamChild* aActor,
const nsCString& url,
const uint32_t& length,
const uint32_t& lastmodified,
PStreamNotifyChild* notifyData,
const nsCString& headers)
{
return IPC_OK();
}
NPError
PluginInstanceChild::DoNPP_NewStream(BrowserStreamChild* actor,
const nsCString& mimeType,
const bool& seekable,
uint16_t* stype)
{
AssertPluginThread();
AutoStackHelper guard(this);
NPError rv = actor->StreamConstructed(mimeType, seekable, stype);
return rv;
}
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_NewStream(PBrowserStreamChild* actor,
const nsCString& mimeType,
const bool& seekable,
NPError* rv,
uint16_t* stype)
{
*rv = DoNPP_NewStream(static_cast<BrowserStreamChild*>(actor), mimeType,
seekable, stype);
return IPC_OK();
}
PBrowserStreamChild*
PluginInstanceChild::AllocPBrowserStreamChild(const nsCString& url,
const uint32_t& length,
const uint32_t& lastmodified,
PStreamNotifyChild* notifyData,
const nsCString& headers)
{
AssertPluginThread();
return new BrowserStreamChild(this, url, length, lastmodified,
static_cast<StreamNotifyChild*>(notifyData),
headers);
}
bool
PluginInstanceChild::DeallocPBrowserStreamChild(PBrowserStreamChild* stream)
{
AssertPluginThread();
delete stream;
return true;
}
PStreamNotifyChild*
PluginInstanceChild::AllocPStreamNotifyChild(const nsCString& url,
const nsCString& target,
const bool& post,
const nsCString& buffer,
const bool& file,
NPError* result)
{
AssertPluginThread();
MOZ_CRASH("not reached");
return nullptr;
}
void
StreamNotifyChild::ActorDestroy(ActorDestroyReason why)
{
if (AncestorDeletion == why && mBrowserStream) {
NS_ERROR("Pending NPP_URLNotify not called when closing an instance.");
// reclaim responsibility for deleting ourself
mBrowserStream->mStreamNotify = nullptr;
mBrowserStream = nullptr;
}
}
void
StreamNotifyChild::SetAssociatedStream(BrowserStreamChild* bs)
{
NS_ASSERTION(!mBrowserStream, "Two streams for one streamnotify?");
mBrowserStream = bs;
}
mozilla::ipc::IPCResult
StreamNotifyChild::Recv__delete__(const NPReason& reason)
{
AssertPluginThread();
if (mBrowserStream)
mBrowserStream->NotifyPending();
else
NPP_URLNotify(reason);
return IPC_OK();
}
mozilla::ipc::IPCResult
StreamNotifyChild::RecvRedirectNotify(const nsCString& url, const int32_t& status)
{
// NPP_URLRedirectNotify requires a non-null closure. Since core logic
// assumes that all out-of-process notify streams have non-null closure
// data it will assume that the plugin was notified at this point and
// expect a response otherwise the redirect will hang indefinitely.
if (!mClosure) {
SendRedirectNotifyResponse(false);
}
PluginInstanceChild* instance = static_cast<PluginInstanceChild*>(Manager());
if (instance->mPluginIface->urlredirectnotify)
instance->mPluginIface->urlredirectnotify(instance->GetNPP(), url.get(), status, mClosure);
return IPC_OK();
}
void
StreamNotifyChild::NPP_URLNotify(NPReason reason)
{
PluginInstanceChild* instance = static_cast<PluginInstanceChild*>(Manager());
if (mClosure)
instance->mPluginIface->urlnotify(instance->GetNPP(), mURL.get(),
reason, mClosure);
}
bool
PluginInstanceChild::DeallocPStreamNotifyChild(PStreamNotifyChild* notifyData)
{
AssertPluginThread();
if (!static_cast<StreamNotifyChild*>(notifyData)->mBrowserStream)
delete notifyData;
return true;
}
PluginScriptableObjectChild*
PluginInstanceChild::GetActorForNPObject(NPObject* aObject)
{
AssertPluginThread();
NS_ASSERTION(aObject, "Null pointer!");
if (aObject->_class == PluginScriptableObjectChild::GetClass()) {
// One of ours! It's a browser-provided object.
ChildNPObject* object = static_cast<ChildNPObject*>(aObject);
NS_ASSERTION(object->parent, "Null actor!");
return object->parent;
}
PluginScriptableObjectChild* actor =
PluginScriptableObjectChild::GetActorForNPObject(aObject);
if (actor) {
// Plugin-provided object that we've previously wrapped.
return actor;
}
actor = new PluginScriptableObjectChild(LocalObject);
if (!SendPPluginScriptableObjectConstructor(actor)) {
NS_ERROR("Failed to send constructor message!");
return nullptr;
}
actor->InitializeLocal(aObject);
return actor;
}
void
PluginInstanceChild::NPN_URLRedirectResponse(void* notifyData, NPBool allow)
{
if (!notifyData) {
return;
}
InfallibleTArray<PStreamNotifyChild*> notifyStreams;
ManagedPStreamNotifyChild(notifyStreams);
uint32_t notifyStreamCount = notifyStreams.Length();
for (uint32_t i = 0; i < notifyStreamCount; i++) {
StreamNotifyChild* sn = static_cast<StreamNotifyChild*>(notifyStreams[i]);
if (sn->mClosure == notifyData) {
sn->SendRedirectNotifyResponse(static_cast<bool>(allow));
return;
}
}
NS_ASSERTION(false, "Couldn't find stream for redirect response!");
}
bool
PluginInstanceChild::IsUsingDirectDrawing()
{
return IsDrawingModelDirect(mDrawingModel);
}
PluginInstanceChild::DirectBitmap::DirectBitmap(PluginInstanceChild* aOwner, const Shmem& shmem,
const IntSize& size, uint32_t stride, SurfaceFormat format)
: mOwner(aOwner),
mShmem(shmem),
mFormat(format),
mSize(size),
mStride(stride)
{
}
PluginInstanceChild::DirectBitmap::~DirectBitmap()
{
mOwner->DeallocShmem(mShmem);
}
static inline SurfaceFormat
NPImageFormatToSurfaceFormat(NPImageFormat aFormat)
{
switch (aFormat) {
case NPImageFormatBGRA32:
return SurfaceFormat::B8G8R8A8;
case NPImageFormatBGRX32:
return SurfaceFormat::B8G8R8X8;
default:
MOZ_ASSERT_UNREACHABLE("unknown NPImageFormat");
return SurfaceFormat::UNKNOWN;
}
}
static inline gfx::IntRect
NPRectToIntRect(const NPRect& in)
{
return IntRect(in.left, in.top, in.right - in.left, in.bottom - in.top);
}
NPError
PluginInstanceChild::NPN_InitAsyncSurface(NPSize *size, NPImageFormat format,
void *initData, NPAsyncSurface *surface)
{
AssertPluginThread();
AutoStackHelper guard(this);
if (!IsUsingDirectDrawing()) {
return NPERR_INVALID_PARAM;
}
if (format != NPImageFormatBGRA32 && format != NPImageFormatBGRX32) {
return NPERR_INVALID_PARAM;
}
PodZero(surface);
// NPAPI guarantees that the SetCurrentAsyncSurface call will release the
// previous surface if it was different. However, no functionality exists
// within content to synchronize a non-shadow-layers transaction with the
// compositor.
//
// To get around this, we allocate two surfaces: a child copy, which we
// hand off to the plugin, and a parent copy, which we will hand off to
// the compositor. Each call to SetCurrentAsyncSurface will copy the
// invalid region from the child surface to its parent.
switch (mDrawingModel) {
case NPDrawingModelAsyncBitmapSurface: {
// Validate that the caller does not expect initial data to be set.
if (initData) {
return NPERR_INVALID_PARAM;
}
// Validate that we're not double-allocating a surface.
RefPtr<DirectBitmap> holder;
if (mDirectBitmaps.Get(surface, getter_AddRefs(holder))) {
return NPERR_INVALID_PARAM;
}
SurfaceFormat mozformat = NPImageFormatToSurfaceFormat(format);
int32_t bytesPerPixel = BytesPerPixel(mozformat);
if (size->width <= 0 || size->height <= 0) {
return NPERR_INVALID_PARAM;
}
CheckedInt<uint32_t> nbytes = SafeBytesForBitmap(size->width, size->height, bytesPerPixel);
if (!nbytes.isValid()) {
return NPERR_INVALID_PARAM;
}
Shmem shmem;
if (!AllocUnsafeShmem(nbytes.value(), SharedMemory::TYPE_BASIC, &shmem)) {
return NPERR_OUT_OF_MEMORY_ERROR;
}
MOZ_ASSERT(shmem.Size<uint8_t>() == nbytes.value());
surface->version = 0;
surface->size = *size;
surface->format = format;
surface->bitmap.data = shmem.get<unsigned char>();
surface->bitmap.stride = size->width * bytesPerPixel;
// Hold the shmem alive until Finalize() is called or this actor dies.
holder = new DirectBitmap(this, shmem,
IntSize(size->width, size->height),
surface->bitmap.stride, mozformat);
mDirectBitmaps.Put(surface, holder);
return NPERR_NO_ERROR;
}
#if defined(XP_WIN)
case NPDrawingModelAsyncWindowsDXGISurface: {
// Validate that the caller does not expect initial data to be set.
if (initData) {
return NPERR_INVALID_PARAM;
}
// Validate that we're not double-allocating a surface.
WindowsHandle handle = 0;
if (mDxgiSurfaces.Get(surface, &handle)) {
return NPERR_INVALID_PARAM;
}
NPError error = NPERR_NO_ERROR;
SurfaceFormat mozformat = NPImageFormatToSurfaceFormat(format);
if (!SendInitDXGISurface(mozformat,
IntSize(size->width, size->height),
&handle,
&error))
{
return NPERR_GENERIC_ERROR;
}
if (error != NPERR_NO_ERROR) {
return error;
}
surface->version = 0;
surface->size = *size;
surface->format = format;
surface->sharedHandle = reinterpret_cast<HANDLE>(handle);
mDxgiSurfaces.Put(surface, handle);
return NPERR_NO_ERROR;
}
#endif
default:
MOZ_ASSERT_UNREACHABLE("unknown drawing model");
}
return NPERR_INVALID_PARAM;
}
NPError
PluginInstanceChild::NPN_FinalizeAsyncSurface(NPAsyncSurface *surface)
{
AssertPluginThread();
if (!IsUsingDirectDrawing()) {
return NPERR_GENERIC_ERROR;
}
switch (mDrawingModel) {
case NPDrawingModelAsyncBitmapSurface: {
RefPtr<DirectBitmap> bitmap;
if (!mDirectBitmaps.Get(surface, getter_AddRefs(bitmap))) {
return NPERR_INVALID_PARAM;
}
PodZero(surface);
mDirectBitmaps.Remove(surface);
return NPERR_NO_ERROR;
}
#if defined(XP_WIN)
case NPDrawingModelAsyncWindowsDXGISurface: {
WindowsHandle handle;
if (!mDxgiSurfaces.Get(surface, &handle)) {
return NPERR_INVALID_PARAM;
}
SendFinalizeDXGISurface(handle);
mDxgiSurfaces.Remove(surface);
return NPERR_NO_ERROR;
}
#endif
default:
MOZ_ASSERT_UNREACHABLE("unknown drawing model");
}
return NPERR_INVALID_PARAM;
}
void
PluginInstanceChild::NPN_SetCurrentAsyncSurface(NPAsyncSurface *surface, NPRect *changed)
{
AssertPluginThread();
if (!IsUsingDirectDrawing()) {
return;
}
mCurrentDirectSurface = surface;
if (!surface) {
SendRevokeCurrentDirectSurface();
return;
}
switch (mDrawingModel) {
case NPDrawingModelAsyncBitmapSurface: {
RefPtr<DirectBitmap> bitmap;
if (!mDirectBitmaps.Get(surface, getter_AddRefs(bitmap))) {
return;
}
IntRect dirty = changed
? NPRectToIntRect(*changed)
: IntRect(IntPoint(0, 0), bitmap->mSize);
// Need a holder since IPDL zaps the object for mysterious reasons.
Shmem shmemHolder = bitmap->mShmem;
SendShowDirectBitmap(shmemHolder, bitmap->mFormat, bitmap->mStride, bitmap->mSize, dirty);
break;
}
#if defined(XP_WIN)
case NPDrawingModelAsyncWindowsDXGISurface: {
WindowsHandle handle;
if (!mDxgiSurfaces.Get(surface, &handle)) {
return;
}
IntRect dirty = changed
? NPRectToIntRect(*changed)
: IntRect(IntPoint(0, 0), IntSize(surface->size.width, surface->size.height));
SendShowDirectDXGISurface(handle, dirty);
break;
}
#endif
default:
MOZ_ASSERT_UNREACHABLE("unknown drawing model");
}
}
void
PluginInstanceChild::DoAsyncRedraw()
{
{
MutexAutoLock autoLock(mAsyncInvalidateMutex);
mAsyncInvalidateTask = nullptr;
}
SendRedrawPlugin();
}
mozilla::ipc::IPCResult
PluginInstanceChild::RecvAsyncSetWindow(const gfxSurfaceType& aSurfaceType,
const NPRemoteWindow& aWindow)
{
AssertPluginThread();
AutoStackHelper guard(this);
NS_ASSERTION(!aWindow.window, "Remote window should be null.");
if (mCurrentAsyncSetWindowTask) {
mCurrentAsyncSetWindowTask->Cancel();
mCurrentAsyncSetWindowTask = nullptr;
}
// We shouldn't process this now because it may be received within a nested
// RPC call, and both Flash and Java don't expect to receive setwindow calls
// at arbitrary times.
mCurrentAsyncSetWindowTask =
NewNonOwningCancelableRunnableMethod<gfxSurfaceType,
NPRemoteWindow,
bool>(
"plugins::PluginInstanceChild::DoAsyncSetWindow",
this,
&PluginInstanceChild::DoAsyncSetWindow,
aSurfaceType,
aWindow,
true);
RefPtr<Runnable> addrefedTask = mCurrentAsyncSetWindowTask;
MessageLoop::current()->PostTask(addrefedTask.forget());
return IPC_OK();
}
void
PluginInstanceChild::DoAsyncSetWindow(const gfxSurfaceType& aSurfaceType,
const NPRemoteWindow& aWindow,
bool aIsAsync)
{
PLUGIN_LOG_DEBUG(
("[InstanceChild][%p] AsyncSetWindow to <x=%d,y=%d, w=%d,h=%d>",
this, aWindow.x, aWindow.y, aWindow.width, aWindow.height));
AssertPluginThread();
NS_ASSERTION(!aWindow.window, "Remote window should be null.");
NS_ASSERTION(!mPendingPluginCall, "Can't do SetWindow during plugin call!");
if (aIsAsync) {
if (!mCurrentAsyncSetWindowTask) {
return;
}
mCurrentAsyncSetWindowTask = nullptr;
}
mWindow.window = nullptr;
if (mWindow.width != aWindow.width || mWindow.height != aWindow.height ||
mWindow.clipRect.top != aWindow.clipRect.top ||
mWindow.clipRect.left != aWindow.clipRect.left ||
mWindow.clipRect.bottom != aWindow.clipRect.bottom ||
mWindow.clipRect.right != aWindow.clipRect.right)
mAccumulatedInvalidRect = nsIntRect(0, 0, aWindow.width, aWindow.height);
mWindow.x = aWindow.x;
mWindow.y = aWindow.y;
mWindow.width = aWindow.width;
mWindow.height = aWindow.height;
mWindow.clipRect = aWindow.clipRect;
mWindow.type = aWindow.type;
#if defined(XP_MACOSX) || defined(XP_WIN)
mContentsScaleFactor = aWindow.contentsScaleFactor;
#endif
mLayersRendering = true;
mSurfaceType = aSurfaceType;
UpdateWindowAttributes(true);
#ifdef XP_WIN
if (GetQuirks() & QUIRK_FLASH_THROTTLE_WMUSER_EVENTS)
SetupFlashMsgThrottle();
#endif
if (!mAccumulatedInvalidRect.IsEmpty()) {
AsyncShowPluginFrame();
}
}
bool
PluginInstanceChild::CreateOptSurface(void)
{
MOZ_ASSERT(mSurfaceType != gfxSurfaceType::Max,
"Need a valid surface type here");
NS_ASSERTION(!mCurrentSurface, "mCurrentSurfaceActor can get out of sync.");
// Use an opaque surface unless we're transparent and *don't* have
// a background to source from.
gfxImageFormat format =
(mIsTransparent && !mBackground) ? SurfaceFormat::A8R8G8B8_UINT32 :
SurfaceFormat::X8R8G8B8_UINT32;
#ifdef MOZ_X11
Display* dpy = mWsInfo.display;
Screen* screen = DefaultScreenOfDisplay(dpy);
if (format == SurfaceFormat::X8R8G8B8_UINT32 &&
DefaultDepth(dpy, DefaultScreen(dpy)) == 16) {
format = SurfaceFormat::R5G6B5_UINT16;
}
if (mSurfaceType == gfxSurfaceType::Xlib) {
if (!mIsTransparent || mBackground) {
Visual* defaultVisual = DefaultVisualOfScreen(screen);
mCurrentSurface =
gfxXlibSurface::Create(screen, defaultVisual,
IntSize(mWindow.width, mWindow.height));
return mCurrentSurface != nullptr;
}
XRenderPictFormat* xfmt = XRenderFindStandardFormat(dpy, PictStandardARGB32);
if (!xfmt) {
NS_ERROR("Need X falback surface, but FindRenderFormat failed");
return false;
}
mCurrentSurface =
gfxXlibSurface::Create(screen, xfmt,
IntSize(mWindow.width, mWindow.height));
return mCurrentSurface != nullptr;
}
#endif
#ifdef XP_WIN
if (mSurfaceType == gfxSurfaceType::Win32) {
bool willHaveTransparentPixels = mIsTransparent && !mBackground;
SharedDIBSurface* s = new SharedDIBSurface();
if (!s->Create(reinterpret_cast<HDC>(mWindow.window),
mWindow.width, mWindow.height,
willHaveTransparentPixels))
return false;
mCurrentSurface = s;
return true;
}
MOZ_CRASH("Shared-memory drawing not expected on Windows.");
#endif
// Make common shmem implementation working for any platform
mCurrentSurface =
gfxSharedImageSurface::CreateUnsafe(this, IntSize(mWindow.width, mWindow.height), format);
return !!mCurrentSurface;
}
bool
PluginInstanceChild::MaybeCreatePlatformHelperSurface(void)
{
if (!mCurrentSurface) {
NS_ERROR("Cannot create helper surface without mCurrentSurface");
return false;
}
#ifdef MOZ_X11
bool supportNonDefaultVisual = false;
Screen* screen = DefaultScreenOfDisplay(mWsInfo.display);
Visual* defaultVisual = DefaultVisualOfScreen(screen);
Visual* visual = nullptr;
Colormap colormap = 0;
mDoAlphaExtraction = false;
bool createHelperSurface = false;
if (mCurrentSurface->GetType() == gfxSurfaceType::Xlib) {
static_cast<gfxXlibSurface*>(mCurrentSurface.get())->
GetColormapAndVisual(&colormap, &visual);
// Create helper surface if layer surface visual not same as default
// and we don't support non-default visual rendering
if (!visual || (defaultVisual != visual && !supportNonDefaultVisual)) {
createHelperSurface = true;
visual = defaultVisual;
mDoAlphaExtraction = mIsTransparent;
}
} else if (mCurrentSurface->GetType() == gfxSurfaceType::Image) {
// For image layer surface we should always create helper surface
createHelperSurface = true;
// Check if we can create helper surface with non-default visual
visual = gfxXlibSurface::FindVisual(screen,
static_cast<gfxImageSurface*>(mCurrentSurface.get())->Format());
if (!visual || (defaultVisual != visual && !supportNonDefaultVisual)) {
visual = defaultVisual;
mDoAlphaExtraction = mIsTransparent;
}
}
if (createHelperSurface) {
if (!visual) {
NS_ERROR("Need X falback surface, but visual failed");
return false;
}
mHelperSurface =
gfxXlibSurface::Create(screen, visual,
mCurrentSurface->GetSize());
if (!mHelperSurface) {
NS_WARNING("Fail to create create helper surface");
return false;
}
}
#elif defined(XP_WIN)
mDoAlphaExtraction = mIsTransparent && !mBackground;
#endif
return true;
}
bool
PluginInstanceChild::EnsureCurrentBuffer(void)
{
#ifndef XP_DARWIN
nsIntRect toInvalidate(0, 0, 0, 0);
IntSize winSize = IntSize(mWindow.width, mWindow.height);
if (mBackground && mBackground->GetSize() != winSize) {
// It would be nice to keep the old background here, but doing
// so can lead to cases in which we permanently keep the old
// background size.
mBackground = nullptr;
toInvalidate.UnionRect(toInvalidate,
nsIntRect(0, 0, winSize.width, winSize.height));
}
if (mCurrentSurface) {
IntSize surfSize = mCurrentSurface->GetSize();
if (winSize != surfSize ||
(mBackground && !CanPaintOnBackground()) ||
(mBackground &&
gfxContentType::COLOR != mCurrentSurface->GetContentType()) ||
(!mBackground && mIsTransparent &&
gfxContentType::COLOR == mCurrentSurface->GetContentType())) {
// Don't try to use an old, invalid DC.
mWindow.window = nullptr;
ClearCurrentSurface();
toInvalidate.UnionRect(toInvalidate,
nsIntRect(0, 0, winSize.width, winSize.height));
}
}
mAccumulatedInvalidRect.UnionRect(mAccumulatedInvalidRect, toInvalidate);
if (mCurrentSurface) {
return true;
}
if (!CreateOptSurface()) {
NS_ERROR("Cannot create optimized surface");
return false;
}
if (!MaybeCreatePlatformHelperSurface()) {
NS_ERROR("Cannot create helper surface");
return false;
}
#elif defined(XP_MACOSX)
if (!mDoubleBufferCARenderer.HasCALayer()) {
void *caLayer = nullptr;
if (mDrawingModel == NPDrawingModelCoreGraphics) {
if (!mCGLayer) {
caLayer = mozilla::plugins::PluginUtilsOSX::GetCGLayer(CallCGDraw,
this,
mContentsScaleFactor);
if (!caLayer) {
PLUGIN_LOG_DEBUG(("GetCGLayer failed."));
return false;
}
}
mCGLayer = caLayer;
} else {
NPError result = mPluginIface->getvalue(GetNPP(),
NPPVpluginCoreAnimationLayer,
&caLayer);
if (result != NPERR_NO_ERROR || !caLayer) {
PLUGIN_LOG_DEBUG(("Plugin requested CoreAnimation but did not "
"provide CALayer."));
return false;
}
}
mDoubleBufferCARenderer.SetCALayer(caLayer);
}
if (mDoubleBufferCARenderer.HasFrontSurface() &&
(mDoubleBufferCARenderer.GetFrontSurfaceWidth() != mWindow.width ||
mDoubleBufferCARenderer.GetFrontSurfaceHeight() != mWindow.height ||
mDoubleBufferCARenderer.GetContentsScaleFactor() != mContentsScaleFactor)) {
mDoubleBufferCARenderer.ClearFrontSurface();
}
if (!mDoubleBufferCARenderer.HasFrontSurface()) {
bool allocSurface = mDoubleBufferCARenderer.InitFrontSurface(
mWindow.width, mWindow.height, mContentsScaleFactor,
GetQuirks() & QUIRK_ALLOW_OFFLINE_RENDERER ?
ALLOW_OFFLINE_RENDERER : DISALLOW_OFFLINE_RENDERER);
if (!allocSurface) {
PLUGIN_LOG_DEBUG(("Fail to allocate front IOSurface"));
return false;
}
if (mPluginIface->setwindow)
(void) mPluginIface->setwindow(&mData, &mWindow);
nsIntRect toInvalidate(0, 0, mWindow.width, mWindow.height);
mAccumulatedInvalidRect.UnionRect(mAccumulatedInvalidRect, toInvalidate);
}
#endif
return true;
}
void
PluginInstanceChild::UpdateWindowAttributes(bool aForceSetWindow)
{
#if defined(MOZ_X11) || defined(XP_WIN)
RefPtr<gfxASurface> curSurface = mHelperSurface ? mHelperSurface : mCurrentSurface;
#endif // Only used within MOZ_X11 or XP_WIN blocks. Unused variable otherwise
bool needWindowUpdate = aForceSetWindow;
#ifdef MOZ_X11
Visual* visual = nullptr;
Colormap colormap = 0;
if (curSurface && curSurface->GetType() == gfxSurfaceType::Xlib) {
static_cast<gfxXlibSurface*>(curSurface.get())->
GetColormapAndVisual(&colormap, &visual);
if (visual != mWsInfo.visual || colormap != mWsInfo.colormap) {
mWsInfo.visual = visual;
mWsInfo.colormap = colormap;
needWindowUpdate = true;
}
}
#endif // MOZ_X11
#ifdef XP_WIN
HDC dc = nullptr;
if (curSurface) {
if (!SharedDIBSurface::IsSharedDIBSurface(curSurface))
MOZ_CRASH("Expected SharedDIBSurface!");
SharedDIBSurface* dibsurf = static_cast<SharedDIBSurface*>(curSurface.get());
dc = dibsurf->GetHDC();
}
if (mWindow.window != dc) {
mWindow.window = dc;
needWindowUpdate = true;
}
#endif // XP_WIN
if (!needWindowUpdate) {
return;
}
#ifndef XP_MACOSX
// Adjusting the window isn't needed for OSX
#ifndef XP_WIN
// On Windows, we translate the device context, in order for the window
// origin to be correct.
mWindow.x = mWindow.y = 0;
#endif
if (IsVisible()) {
// The clip rect is relative to drawable top-left.
nsIntRect clipRect;
// Don't ask the plugin to draw outside the drawable. The clip rect
// is in plugin coordinates, not window coordinates.
// This also ensures that the unsigned clip rectangle offsets won't be -ve.
clipRect.SetRect(0, 0, mWindow.width, mWindow.height);
mWindow.clipRect.left = 0;
mWindow.clipRect.top = 0;
mWindow.clipRect.right = clipRect.XMost();
mWindow.clipRect.bottom = clipRect.YMost();
}
#endif // XP_MACOSX
#ifdef XP_WIN
// Windowless plugins on Windows need a WM_WINDOWPOSCHANGED event to update
// their location... or at least Flash does: Silverlight uses the
// window.x/y passed to NPP_SetWindow
if (mPluginIface->event) {
// width and height are stored as units, but narrow to ints here
MOZ_RELEASE_ASSERT(mWindow.width <= INT_MAX);
MOZ_RELEASE_ASSERT(mWindow.height <= INT_MAX);
WINDOWPOS winpos = {
0, 0,
mWindow.x, mWindow.y,
(int32_t)mWindow.width, (int32_t)mWindow.height,
0
};
NPEvent pluginEvent = {
WM_WINDOWPOSCHANGED, 0,
(LPARAM) &winpos
};
mPluginIface->event(&mData, &pluginEvent);
}
#endif
PLUGIN_LOG_DEBUG(
("[InstanceChild][%p] UpdateWindow w=<x=%d,y=%d, w=%d,h=%d>, clip=<l=%d,t=%d,r=%d,b=%d>",
this, mWindow.x, mWindow.y, mWindow.width, mWindow.height,
mWindow.clipRect.left, mWindow.clipRect.top, mWindow.clipRect.right, mWindow.clipRect.bottom));
if (mPluginIface->setwindow) {
mPluginIface->setwindow(&mData, &mWindow);
}
}
void
PluginInstanceChild::PaintRectToPlatformSurface(const nsIntRect& aRect,
gfxASurface* aSurface)
{
UpdateWindowAttributes();
// We should not send an async surface if we're using direct rendering.
MOZ_ASSERT(!IsUsingDirectDrawing());
#ifdef MOZ_X11
{
NS_ASSERTION(aSurface->GetType() == gfxSurfaceType::Xlib,
"Non supported platform surface type");
NPEvent pluginEvent;
XGraphicsExposeEvent& exposeEvent = pluginEvent.xgraphicsexpose;
exposeEvent.type = GraphicsExpose;
exposeEvent.display = mWsInfo.display;
exposeEvent.drawable = static_cast<gfxXlibSurface*>(aSurface)->XDrawable();
exposeEvent.x = aRect.x;
exposeEvent.y = aRect.y;
exposeEvent.width = aRect.width;
exposeEvent.height = aRect.height;
exposeEvent.count = 0;
// information not set:
exposeEvent.serial = 0;
exposeEvent.send_event = False;
exposeEvent.major_code = 0;
exposeEvent.minor_code = 0;
mPluginIface->event(&mData, reinterpret_cast<void*>(&exposeEvent));
}
#elif defined(XP_WIN)
NS_ASSERTION(SharedDIBSurface::IsSharedDIBSurface(aSurface),
"Expected (SharedDIB) image surface.");
// This rect is in the window coordinate space. aRect is in the plugin
// coordinate space.
RECT rect = {
mWindow.x + aRect.x,
mWindow.y + aRect.y,
mWindow.x + aRect.XMost(),
mWindow.y + aRect.YMost()
};
NPEvent paintEvent = {
WM_PAINT,
uintptr_t(mWindow.window),
intptr_t(&rect)
};
::SetViewportOrgEx((HDC) mWindow.window, -mWindow.x, -mWindow.y, nullptr);
::SelectClipRgn((HDC) mWindow.window, nullptr);
::IntersectClipRect((HDC) mWindow.window, rect.left, rect.top, rect.right, rect.bottom);
mPluginIface->event(&mData, reinterpret_cast<void*>(&paintEvent));
#else
MOZ_CRASH("Surface type not implemented.");
#endif
}
void
PluginInstanceChild::PaintRectToSurface(const nsIntRect& aRect,
gfxASurface* aSurface,
const Color& aColor)
{
// Render using temporary X surface, with copy to image surface
nsIntRect plPaintRect(aRect);
RefPtr<gfxASurface> renderSurface = aSurface;
#ifdef MOZ_X11
if (mIsTransparent && (GetQuirks() & QUIRK_FLASH_EXPOSE_COORD_TRANSLATION)) {
// Work around a bug in Flash up to 10.1 d51 at least, where expose event
// top left coordinates within the plugin-rect and not at the drawable
// origin are misinterpreted. (We can move the top left coordinate
// provided it is within the clipRect.), see bug 574583
plPaintRect.SetRect(0, 0, aRect.XMost(), aRect.YMost());
}
if (mHelperSurface) {
// On X11 we can paint to non Xlib surface only with HelperSurface
renderSurface = mHelperSurface;
}
#endif
if (mIsTransparent && !CanPaintOnBackground()) {
RefPtr<DrawTarget> dt = CreateDrawTargetForSurface(renderSurface);
gfx::Rect rect(plPaintRect.x, plPaintRect.y,
plPaintRect.width, plPaintRect.height);
// Moz2D treats OP_SOURCE operations as unbounded, so we need to
// clip to the rect that we want to fill:
dt->PushClipRect(rect);
dt->FillRect(rect, ColorPattern(aColor), // aColor is already a device color
DrawOptions(1.f, CompositionOp::OP_SOURCE));
dt->PopClip();
dt->Flush();
}
PaintRectToPlatformSurface(plPaintRect, renderSurface);
if (renderSurface != aSurface) {
RefPtr<DrawTarget> dt;
if (aSurface == mCurrentSurface &&
aSurface->GetType() == gfxSurfaceType::Image &&
aSurface->GetSurfaceFormat() == SurfaceFormat::B8G8R8X8) {
gfxImageSurface* imageSurface = static_cast<gfxImageSurface*>(aSurface);
// Bug 1196927 - Reinterpret target surface as BGRA to fill alpha with opaque.
// Certain backends (i.e. Skia) may not truly support BGRX formats, so they must
// be emulated by filling the alpha channel opaque as if it was BGRA data. Cairo
// leaves the alpha zeroed out for BGRX, so we cause Cairo to fill it as opaque
// by handling the copy target as a BGRA surface.
dt = Factory::CreateDrawTargetForData(BackendType::CAIRO,
imageSurface->Data(),
imageSurface->GetSize(),
imageSurface->Stride(),
SurfaceFormat::B8G8R8A8);
} else {
// Copy helper surface content to target
dt = CreateDrawTargetForSurface(aSurface);
}
if (dt && dt->IsValid()) {
RefPtr<SourceSurface> surface =
gfxPlatform::GetSourceSurfaceForSurface(dt, renderSurface);
dt->CopySurface(surface, aRect, aRect.TopLeft());
} else {
gfxWarning() << "PluginInstanceChild::PaintRectToSurface failure";
}
}
}
void
PluginInstanceChild::PaintRectWithAlphaExtraction(const nsIntRect& aRect,
gfxASurface* aSurface)
{
MOZ_ASSERT(aSurface->GetContentType() == gfxContentType::COLOR_ALPHA,
"Refusing to pointlessly recover alpha");
nsIntRect rect(aRect);
// If |aSurface| can be used to paint and can have alpha values
// recovered directly to it, do that to save a tmp surface and
// copy.
bool useSurfaceSubimageForBlack = false;
if (gfxSurfaceType::Image == aSurface->GetType()) {
gfxImageSurface* surfaceAsImage =
static_cast<gfxImageSurface*>(aSurface);
useSurfaceSubimageForBlack =
(surfaceAsImage->Format() == SurfaceFormat::A8R8G8B8_UINT32);
// If we're going to use a subimage, nudge the rect so that we
// can use optimal alpha recovery. If we're not using a
// subimage, the temporaries should automatically get
// fast-path alpha recovery so we don't need to do anything.
if (useSurfaceSubimageForBlack) {
rect =
gfxAlphaRecovery::AlignRectForSubimageRecovery(aRect,
surfaceAsImage);
}
}
RefPtr<gfxImageSurface> whiteImage;
RefPtr<gfxImageSurface> blackImage;
gfxRect targetRect(rect.x, rect.y, rect.width, rect.height);
IntSize targetSize(rect.width, rect.height);
gfxPoint deviceOffset = -targetRect.TopLeft();
// We always use a temporary "white image"
whiteImage = new gfxImageSurface(targetSize, SurfaceFormat::X8R8G8B8_UINT32);
if (whiteImage->CairoStatus()) {
return;
}
#ifdef XP_WIN
// On windows, we need an HDC and so can't paint directly to
// vanilla image surfaces. Bifurcate this painting code so that
// we don't accidentally attempt that.
if (!SharedDIBSurface::IsSharedDIBSurface(aSurface))
MOZ_CRASH("Expected SharedDIBSurface!");
// Paint the plugin directly onto the target, with a white
// background and copy the result
PaintRectToSurface(rect, aSurface, Color(1.f, 1.f, 1.f));
{
RefPtr<DrawTarget> dt = CreateDrawTargetForSurface(whiteImage);
RefPtr<SourceSurface> surface =
gfxPlatform::GetSourceSurfaceForSurface(dt, aSurface);
dt->CopySurface(surface, rect, IntPoint());
}
// Paint the plugin directly onto the target, with a black
// background
PaintRectToSurface(rect, aSurface, Color(0.f, 0.f, 0.f));
// Don't copy the result, just extract a subimage so that we can
// recover alpha directly into the target
gfxImageSurface *image = static_cast<gfxImageSurface*>(aSurface);
blackImage = image->GetSubimage(targetRect);
#else
// Paint onto white background
whiteImage->SetDeviceOffset(deviceOffset);
PaintRectToSurface(rect, whiteImage, Color(1.f, 1.f, 1.f));
if (useSurfaceSubimageForBlack) {
gfxImageSurface *surface = static_cast<gfxImageSurface*>(aSurface);
blackImage = surface->GetSubimage(targetRect);
} else {
blackImage = new gfxImageSurface(targetSize,
SurfaceFormat::A8R8G8B8_UINT32);
}
// Paint onto black background
blackImage->SetDeviceOffset(deviceOffset);
PaintRectToSurface(rect, blackImage, Color(0.f, 0.f, 0.f));
#endif
MOZ_ASSERT(whiteImage && blackImage, "Didn't paint enough!");
// Extract alpha from black and white image and store to black
// image
if (!gfxAlphaRecovery::RecoverAlpha(blackImage, whiteImage)) {
return;
}
// If we had to use a temporary black surface, copy the pixels
// with alpha back to the target
if (!useSurfaceSubimageForBlack) {
RefPtr<DrawTarget> dt = CreateDrawTargetForSurface(aSurface);
RefPtr<SourceSurface> surface =
gfxPlatform::GetSourceSurfaceForSurface(dt, blackImage);
dt->CopySurface(surface,
IntRect(0, 0, rect.width, rect.height),
rect.TopLeft());
}
}
bool
PluginInstanceChild::CanPaintOnBackground()
{
return (mBackground &&
mCurrentSurface &&
mCurrentSurface->GetSize() == mBackground->GetSize());
}
bool
PluginInstanceChild::ShowPluginFrame()
{
// mLayersRendering can be false if we somehow get here without
// receiving AsyncSetWindow() first. mPendingPluginCall is our
// re-entrancy guard; we can't paint while nested inside another
// paint.
if (!mLayersRendering || mPendingPluginCall) {
return false;
}
// We should not attempt to asynchronously show the plugin if we're using
// direct rendering.
MOZ_ASSERT(!IsUsingDirectDrawing());
AutoRestore<bool> pending(mPendingPluginCall);
mPendingPluginCall = true;
bool temporarilyMakeVisible = !IsVisible() && !mHasPainted;
if (temporarilyMakeVisible && mWindow.width && mWindow.height) {
mWindow.clipRect.right = mWindow.width;
mWindow.clipRect.bottom = mWindow.height;
} else if (!IsVisible()) {
// If we're not visible, don't bother painting a <0,0,0,0>
// rect. If we're eventually made visible, the visibility
// change will invalidate our window.
ClearCurrentSurface();
return true;
}
if (!EnsureCurrentBuffer()) {
return false;
}
#ifdef MOZ_WIDGET_COCOA
// We can't use the thebes code with CoreAnimation so we will
// take a different code path.
if (mDrawingModel == NPDrawingModelCoreAnimation ||
mDrawingModel == NPDrawingModelInvalidatingCoreAnimation ||
mDrawingModel == NPDrawingModelCoreGraphics) {
if (!IsVisible()) {
return true;
}
if (!mDoubleBufferCARenderer.HasFrontSurface()) {
NS_ERROR("CARenderer not initialized for rendering");
return false;
}
// Clear accRect here to be able to pass
// test_invalidate_during_plugin_paint test
nsIntRect rect = mAccumulatedInvalidRect;
mAccumulatedInvalidRect.SetEmpty();
// Fix up old invalidations that might have been made when our
// surface was a different size
rect.IntersectRect(rect,
nsIntRect(0, 0,
mDoubleBufferCARenderer.GetFrontSurfaceWidth(),
mDoubleBufferCARenderer.GetFrontSurfaceHeight()));
if (mDrawingModel == NPDrawingModelCoreGraphics) {
mozilla::plugins::PluginUtilsOSX::Repaint(mCGLayer, rect);
}
mDoubleBufferCARenderer.Render();
NPRect r = { (uint16_t)rect.y, (uint16_t)rect.x,
(uint16_t)rect.YMost(), (uint16_t)rect.XMost() };
SurfaceDescriptor currSurf;
currSurf = IOSurfaceDescriptor(mDoubleBufferCARenderer.GetFrontSurfaceID(),
mDoubleBufferCARenderer.GetContentsScaleFactor());
mHasPainted = true;
SurfaceDescriptor returnSurf;
if (!SendShow(r, currSurf, &returnSurf)) {
return false;
}
SwapSurfaces();
return true;
} else {
NS_ERROR("Unsupported drawing model for async layer rendering");
return false;
}
#endif
NS_ASSERTION(mWindow.width == uint32_t(mWindow.clipRect.right - mWindow.clipRect.left) &&
mWindow.height == uint32_t(mWindow.clipRect.bottom - mWindow.clipRect.top),
"Clip rect should be same size as window when using layers");
// Clear accRect here to be able to pass
// test_invalidate_during_plugin_paint test
nsIntRect rect = mAccumulatedInvalidRect;
mAccumulatedInvalidRect.SetEmpty();
// Fix up old invalidations that might have been made when our
// surface was a different size
IntSize surfaceSize = mCurrentSurface->GetSize();
rect.IntersectRect(rect,
nsIntRect(0, 0, surfaceSize.width, surfaceSize.height));
if (!ReadbackDifferenceRect(rect)) {
// We couldn't read back the pixels that differ between the
// current surface and last, so we have to invalidate the
// entire window.
rect.SetRect(0, 0, mWindow.width, mWindow.height);
}
bool haveTransparentPixels =
gfxContentType::COLOR_ALPHA == mCurrentSurface->GetContentType();
PLUGIN_LOG_DEBUG(
("[InstanceChild][%p] Painting%s <x=%d,y=%d, w=%d,h=%d> on surface <w=%d,h=%d>",
this, haveTransparentPixels ? " with alpha" : "",
rect.x, rect.y, rect.width, rect.height,
mCurrentSurface->GetSize().width, mCurrentSurface->GetSize().height));
if (CanPaintOnBackground()) {
PLUGIN_LOG_DEBUG((" (on background)"));
// Source the background pixels ...
{
RefPtr<gfxASurface> surface =
mHelperSurface ? mHelperSurface : mCurrentSurface;
RefPtr<DrawTarget> dt = CreateDrawTargetForSurface(surface);
RefPtr<SourceSurface> backgroundSurface =
gfxPlatform::GetSourceSurfaceForSurface(dt, mBackground);
dt->CopySurface(backgroundSurface, rect, rect.TopLeft());
}
// ... and hand off to the plugin
// BEWARE: mBackground may die during this call
PaintRectToSurface(rect, mCurrentSurface, Color());
} else if (!temporarilyMakeVisible && mDoAlphaExtraction) {
// We don't want to pay the expense of alpha extraction for
// phony paints.
PLUGIN_LOG_DEBUG((" (with alpha recovery)"));
PaintRectWithAlphaExtraction(rect, mCurrentSurface);
} else {
PLUGIN_LOG_DEBUG((" (onto opaque surface)"));
// If we're on a platform that needs helper surfaces for
// plugins, and we're forcing a throwaway paint of a
// wmode=transparent plugin, then make sure to use the helper
// surface here.
RefPtr<gfxASurface> target =
(temporarilyMakeVisible && mHelperSurface) ?
mHelperSurface : mCurrentSurface;
PaintRectToSurface(rect, target, Color());
}
mHasPainted = true;
if (temporarilyMakeVisible) {
mWindow.clipRect.right = mWindow.clipRect.bottom = 0;
PLUGIN_LOG_DEBUG(
("[InstanceChild][%p] Undoing temporary clipping w=<x=%d,y=%d, w=%d,h=%d>, clip=<l=%d,t=%d,r=%d,b=%d>",
this, mWindow.x, mWindow.y, mWindow.width, mWindow.height,
mWindow.clipRect.left, mWindow.clipRect.top, mWindow.clipRect.right, mWindow.clipRect.bottom));
if (mPluginIface->setwindow) {
mPluginIface->setwindow(&mData, &mWindow);
}
// Skip forwarding the results of the phony paint to the
// browser. We may have painted a transparent plugin using
// the opaque-plugin path, which can result in wrong pixels.
// We also don't want to pay the expense of forwarding the
// surface for plugins that might really be invisible.
mAccumulatedInvalidRect.SetRect(0, 0, mWindow.width, mWindow.height);
return true;
}
NPRect r = { (uint16_t)rect.y, (uint16_t)rect.x,
(uint16_t)rect.YMost(), (uint16_t)rect.XMost() };
SurfaceDescriptor currSurf;
#ifdef MOZ_X11
if (mCurrentSurface->GetType() == gfxSurfaceType::Xlib) {
gfxXlibSurface *xsurf = static_cast<gfxXlibSurface*>(mCurrentSurface.get());
currSurf = SurfaceDescriptorX11(xsurf);
// Need to sync all pending x-paint requests
// before giving drawable to another process
XSync(mWsInfo.display, False);
} else
#endif
#ifdef XP_WIN
if (SharedDIBSurface::IsSharedDIBSurface(mCurrentSurface)) {
SharedDIBSurface* s = static_cast<SharedDIBSurface*>(mCurrentSurface.get());
if (!mCurrentSurfaceActor) {
base::SharedMemoryHandle handle = nullptr;
s->ShareToProcess(OtherPid(), &handle);
mCurrentSurfaceActor =
SendPPluginSurfaceConstructor(handle,
mCurrentSurface->GetSize(),
haveTransparentPixels);
}
currSurf = mCurrentSurfaceActor;
s->Flush();
} else
#endif
if (gfxSharedImageSurface::IsSharedImage(mCurrentSurface)) {
currSurf = static_cast<gfxSharedImageSurface*>(mCurrentSurface.get())->GetShmem();
} else {
MOZ_CRASH("Surface type is not remotable");
return false;
}
// Unused, except to possibly return a shmem to us
SurfaceDescriptor returnSurf;
if (!SendShow(r, currSurf, &returnSurf)) {
return false;
}
SwapSurfaces();
mSurfaceDifferenceRect = rect;
return true;
}
bool
PluginInstanceChild::ReadbackDifferenceRect(const nsIntRect& rect)
{
if (!mBackSurface)
return false;
// We can read safely from XSurface,SharedDIBSurface and Unsafe SharedMemory,
// because PluginHost is not able to modify that surface
#if defined(MOZ_X11)
if (mBackSurface->GetType() != gfxSurfaceType::Xlib &&
!gfxSharedImageSurface::IsSharedImage(mBackSurface))
return false;
#elif defined(XP_WIN)
if (!SharedDIBSurface::IsSharedDIBSurface(mBackSurface))
return false;
#endif
#if defined(MOZ_X11) || defined(XP_WIN)
if (mCurrentSurface->GetContentType() != mBackSurface->GetContentType())
return false;
if (mSurfaceDifferenceRect.IsEmpty())
return true;
PLUGIN_LOG_DEBUG(
("[InstanceChild][%p] Reading back part of <x=%d,y=%d, w=%d,h=%d>",
this, mSurfaceDifferenceRect.x, mSurfaceDifferenceRect.y,
mSurfaceDifferenceRect.width, mSurfaceDifferenceRect.height));
// Read back previous content
RefPtr<DrawTarget> dt = CreateDrawTargetForSurface(mCurrentSurface);
RefPtr<SourceSurface> source =
gfxPlatform::GetSourceSurfaceForSurface(dt, mBackSurface);
// Subtract from mSurfaceDifferenceRect area which is overlapping with rect
nsIntRegion result;
result.Sub(mSurfaceDifferenceRect, nsIntRegion(rect));
for (auto iter = result.RectIter(); !iter.Done(); iter.Next()) {
const nsIntRect& r = iter.Get();
dt->CopySurface(source, r, r.TopLeft());
}
return true;
#else
return false;
#endif
}
void
PluginInstanceChild::InvalidateRectDelayed(void)
{
if (!mCurrentInvalidateTask) {
return;
}
mCurrentInvalidateTask = nullptr;
// When this method is run asynchronously, we can end up switching to
// direct drawing before while we wait to run. In that case, bail.
if (IsUsingDirectDrawing()) {
return;
}
if (mAccumulatedInvalidRect.IsEmpty()) {
return;
}
if (!ShowPluginFrame()) {
AsyncShowPluginFrame();
}
}
void
PluginInstanceChild::AsyncShowPluginFrame(void)
{
if (mCurrentInvalidateTask) {
return;
}
// When the plugin is using direct surfaces to draw, it is not driving
// paints via paint events - it will drive painting via its own events
// and/or DidComposite callbacks.
if (IsUsingDirectDrawing()) {
return;
}
mCurrentInvalidateTask = NewNonOwningCancelableRunnableMethod(
"plugins::PluginInstanceChild::InvalidateRectDelayed",
this,
&PluginInstanceChild::InvalidateRectDelayed);
RefPtr<Runnable> addrefedTask = mCurrentInvalidateTask;
MessageLoop::current()->PostTask(addrefedTask.forget());
}
void
PluginInstanceChild::InvalidateRect(NPRect* aInvalidRect)
{
NS_ASSERTION(aInvalidRect, "Null pointer!");
#ifdef OS_WIN
// Invalidate and draw locally for windowed plugins.
if (mWindow.type == NPWindowTypeWindow) {
NS_ASSERTION(IsWindow(mPluginWindowHWND), "Bad window?!");
RECT rect = { aInvalidRect->left, aInvalidRect->top,
aInvalidRect->right, aInvalidRect->bottom };
::InvalidateRect(mPluginWindowHWND, &rect, FALSE);
return;
}
#endif
if (IsUsingDirectDrawing()) {
NS_ASSERTION(false, "Should not call InvalidateRect() in direct surface mode!");
return;
}
if (mLayersRendering) {
nsIntRect r(aInvalidRect->left, aInvalidRect->top,
aInvalidRect->right - aInvalidRect->left,
aInvalidRect->bottom - aInvalidRect->top);
mAccumulatedInvalidRect.UnionRect(r, mAccumulatedInvalidRect);
// If we are able to paint and invalidate sent, then reset
// accumulated rectangle
AsyncShowPluginFrame();
return;
}
// If we were going to use layers rendering but it's not set up
// yet, and the plugin happens to call this first, we'll forward
// the invalidation to the browser. It's unclear whether
// non-layers plugins need this rect forwarded when their window
// width or height is 0, which it would be for layers plugins
// before their first SetWindow().
SendNPN_InvalidateRect(*aInvalidRect);
}
mozilla::ipc::IPCResult
PluginInstanceChild::RecvUpdateBackground(const SurfaceDescriptor& aBackground,
const nsIntRect& aRect)
{
MOZ_ASSERT(mIsTransparent, "Only transparent plugins use backgrounds");
if (!mBackground) {
// XXX refactor me
switch (aBackground.type()) {
#ifdef MOZ_X11
case SurfaceDescriptor::TSurfaceDescriptorX11: {
mBackground = aBackground.get_SurfaceDescriptorX11().OpenForeign();
break;
}
#endif
case SurfaceDescriptor::TShmem: {
mBackground = gfxSharedImageSurface::Open(aBackground.get_Shmem());
break;
}
default:
MOZ_CRASH("Unexpected background surface descriptor");
}
if (!mBackground) {
return IPC_FAIL_NO_REASON(this);
}
IntSize bgSize = mBackground->GetSize();
mAccumulatedInvalidRect.UnionRect(mAccumulatedInvalidRect,
nsIntRect(0, 0, bgSize.width, bgSize.height));
AsyncShowPluginFrame();
return IPC_OK();
}
// XXX refactor me
mAccumulatedInvalidRect.UnionRect(aRect, mAccumulatedInvalidRect);
// This must be asynchronous, because we may be nested within RPC messages
// which do not expect to receiving paint events.
AsyncShowPluginFrame();
return IPC_OK();
}
PPluginBackgroundDestroyerChild*
PluginInstanceChild::AllocPPluginBackgroundDestroyerChild()
{
return new PluginBackgroundDestroyerChild();
}
mozilla::ipc::IPCResult
PluginInstanceChild::RecvPPluginBackgroundDestroyerConstructor(
PPluginBackgroundDestroyerChild* aActor)
{
// Our background changed, so we have to invalidate the area
// painted with the old background. If the background was
// destroyed because we have a new background, then we expect to
// be notified of that "soon", before processing the asynchronous
// invalidation here. If we're *not* getting a new background,
// our current front surface is stale and we want to repaint
// "soon" so that we can hand the browser back a surface with
// alpha values. (We should be notified of that invalidation soon
// too, but we don't assume that here.)
if (mBackground) {
IntSize bgsize = mBackground->GetSize();
mAccumulatedInvalidRect.UnionRect(
nsIntRect(0, 0, bgsize.width, bgsize.height), mAccumulatedInvalidRect);
// NB: we don't have to XSync here because only ShowPluginFrame()
// uses mBackground, and it always XSyncs after finishing.
mBackground = nullptr;
AsyncShowPluginFrame();
}
if (!PPluginBackgroundDestroyerChild::Send__delete__(aActor)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
bool
PluginInstanceChild::DeallocPPluginBackgroundDestroyerChild(
PPluginBackgroundDestroyerChild* aActor)
{
delete aActor;
return true;
}
uint32_t
PluginInstanceChild::ScheduleTimer(uint32_t interval, bool repeat,
TimerFunc func)
{
auto* t = new ChildTimer(this, interval, repeat, func);
if (0 == t->ID()) {
delete t;
return 0;
}
mTimers.AppendElement(t);
return t->ID();
}
void
PluginInstanceChild::UnscheduleTimer(uint32_t id)
{
if (0 == id)
return;
mTimers.RemoveElement(id, ChildTimer::IDComparator());
}
void
PluginInstanceChild::SwapSurfaces()
{
RefPtr<gfxASurface> tmpsurf = mCurrentSurface;
#ifdef XP_WIN
PPluginSurfaceChild* tmpactor = mCurrentSurfaceActor;
#endif
mCurrentSurface = mBackSurface;
#ifdef XP_WIN
mCurrentSurfaceActor = mBackSurfaceActor;
#endif
mBackSurface = tmpsurf;
#ifdef XP_WIN
mBackSurfaceActor = tmpactor;
#endif
#ifdef MOZ_WIDGET_COCOA
mDoubleBufferCARenderer.SwapSurfaces();
// Outdated back surface... not usable anymore due to changed plugin size.
// Dropping obsolete surface
if (mDoubleBufferCARenderer.HasFrontSurface() &&
mDoubleBufferCARenderer.HasBackSurface() &&
(mDoubleBufferCARenderer.GetFrontSurfaceWidth() !=
mDoubleBufferCARenderer.GetBackSurfaceWidth() ||
mDoubleBufferCARenderer.GetFrontSurfaceHeight() !=
mDoubleBufferCARenderer.GetBackSurfaceHeight() ||
mDoubleBufferCARenderer.GetFrontSurfaceContentsScaleFactor() !=
mDoubleBufferCARenderer.GetBackSurfaceContentsScaleFactor())) {
mDoubleBufferCARenderer.ClearFrontSurface();
}
#else
if (mCurrentSurface && mBackSurface &&
(mCurrentSurface->GetSize() != mBackSurface->GetSize() ||
mCurrentSurface->GetContentType() != mBackSurface->GetContentType())) {
ClearCurrentSurface();
}
#endif
}
void
PluginInstanceChild::ClearCurrentSurface()
{
mCurrentSurface = nullptr;
#ifdef MOZ_WIDGET_COCOA
if (mDoubleBufferCARenderer.HasFrontSurface()) {
mDoubleBufferCARenderer.ClearFrontSurface();
}
#endif
#ifdef XP_WIN
if (mCurrentSurfaceActor) {
PPluginSurfaceChild::Send__delete__(mCurrentSurfaceActor);
mCurrentSurfaceActor = nullptr;
}
#endif
mHelperSurface = nullptr;
}
void
PluginInstanceChild::ClearAllSurfaces()
{
if (mBackSurface) {
// Get last surface back, and drop it
SurfaceDescriptor temp = null_t();
NPRect r = { 0, 0, 1, 1 };
SendShow(r, temp, &temp);
}
if (gfxSharedImageSurface::IsSharedImage(mCurrentSurface))
DeallocShmem(static_cast<gfxSharedImageSurface*>(mCurrentSurface.get())->GetShmem());
if (gfxSharedImageSurface::IsSharedImage(mBackSurface))
DeallocShmem(static_cast<gfxSharedImageSurface*>(mBackSurface.get())->GetShmem());
mCurrentSurface = nullptr;
mBackSurface = nullptr;
#ifdef XP_WIN
if (mCurrentSurfaceActor) {
PPluginSurfaceChild::Send__delete__(mCurrentSurfaceActor);
mCurrentSurfaceActor = nullptr;
}
if (mBackSurfaceActor) {
PPluginSurfaceChild::Send__delete__(mBackSurfaceActor);
mBackSurfaceActor = nullptr;
}
#endif
#ifdef MOZ_WIDGET_COCOA
if (mDoubleBufferCARenderer.HasBackSurface()) {
// Get last surface back, and drop it
SurfaceDescriptor temp = null_t();
NPRect r = { 0, 0, 1, 1 };
SendShow(r, temp, &temp);
}
if (mCGLayer) {
mozilla::plugins::PluginUtilsOSX::ReleaseCGLayer(mCGLayer);
mCGLayer = nullptr;
}
mDoubleBufferCARenderer.ClearFrontSurface();
mDoubleBufferCARenderer.ClearBackSurface();
#endif
}
static void
InvalidateObjects(nsTHashtable<DeletingObjectEntry>& aEntries)
{
for (auto iter = aEntries.Iter(); !iter.Done(); iter.Next()) {
DeletingObjectEntry* e = iter.Get();
NPObject* o = e->GetKey();
if (!e->mDeleted && o->_class && o->_class->invalidate) {
o->_class->invalidate(o);
}
}
}
static void
DeleteObjects(nsTHashtable<DeletingObjectEntry>& aEntries)
{
for (auto iter = aEntries.Iter(); !iter.Done(); iter.Next()) {
DeletingObjectEntry* e = iter.Get();
NPObject* o = e->GetKey();
if (!e->mDeleted) {
e->mDeleted = true;
#ifdef NS_BUILD_REFCNT_LOGGING
{
int32_t refcnt = o->referenceCount;
while (refcnt) {
--refcnt;
NS_LOG_RELEASE(o, refcnt, "NPObject");
}
}
#endif
PluginModuleChild::DeallocNPObject(o);
}
}
}
void
PluginInstanceChild::Destroy()
{
if (mDestroyed) {
return;
}
if (mStackDepth != 0) {
MOZ_CRASH("Destroying plugin instance on the stack.");
}
mDestroyed = true;
#if defined(OS_WIN)
SetProp(mPluginWindowHWND, kPluginIgnoreSubclassProperty, (HANDLE)1);
#endif
InfallibleTArray<PBrowserStreamChild*> streams;
ManagedPBrowserStreamChild(streams);
// First make sure none of these streams become deleted
for (uint32_t i = 0; i < streams.Length(); ) {
if (static_cast<BrowserStreamChild*>(streams[i])->InstanceDying())
++i;
else
streams.RemoveElementAt(i);
}
for (uint32_t i = 0; i < streams.Length(); ++i)
static_cast<BrowserStreamChild*>(streams[i])->FinishDelivery();
mTimers.Clear();
// NPP_Destroy() should be a synchronization point for plugin threads
// calling NPN_AsyncCall: after this function returns, they are no longer
// allowed to make async calls on this instance.
static_cast<PluginModuleChild *>(Manager())->NPP_Destroy(this);
mData.ndata = 0;
if (mCurrentInvalidateTask) {
mCurrentInvalidateTask->Cancel();
mCurrentInvalidateTask = nullptr;
}
if (mCurrentAsyncSetWindowTask) {
mCurrentAsyncSetWindowTask->Cancel();
mCurrentAsyncSetWindowTask = nullptr;
}
{
MutexAutoLock autoLock(mAsyncInvalidateMutex);
if (mAsyncInvalidateTask) {
mAsyncInvalidateTask->Cancel();
mAsyncInvalidateTask = nullptr;
}
}
ClearAllSurfaces();
mDirectBitmaps.Clear();
mDeletingHash = new nsTHashtable<DeletingObjectEntry>;
PluginScriptableObjectChild::NotifyOfInstanceShutdown(this);
InvalidateObjects(*mDeletingHash);
DeleteObjects(*mDeletingHash);
// Null out our cached actors as they should have been killed in the
// PluginInstanceDestroyed call above.
mCachedWindowActor = nullptr;
mCachedElementActor = nullptr;
#if defined(OS_WIN)
DestroyWinlessPopupSurrogate();
UnhookWinlessFlashThrottle();
DestroyPluginWindow();
for (uint32_t i = 0; i < mPendingFlashThrottleMsgs.Length(); ++i) {
mPendingFlashThrottleMsgs[i]->Cancel();
}
mPendingFlashThrottleMsgs.Clear();
#endif
}
mozilla::ipc::IPCResult
PluginInstanceChild::AnswerNPP_Destroy(NPError* aResult)
{
PLUGIN_LOG_DEBUG_METHOD;
AssertPluginThread();
*aResult = NPERR_NO_ERROR;
Destroy();
return IPC_OK();
}
void
PluginInstanceChild::ActorDestroy(ActorDestroyReason why)
{
#ifdef XP_WIN
// ClearAllSurfaces() should not try to send anything after ActorDestroy.
mCurrentSurfaceActor = nullptr;
mBackSurfaceActor = nullptr;
#endif
Destroy();
}
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