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gecko/dom/plugins/ipc/PluginInstanceChild.h
Bill McCloskey 4466224d40 Bug 641685 - Start plugins from the chrome process in e10s (r=bsmedberg) 
This patch has a few side effects:
1. Plugins in the chrome process are "mirrored" to all content processes,
although this mirroring is currently imperfect (bug 1090576)
2. Plugins are no longer sorted by modification date in nsPluginHost.
3. Plugin exceptions are no longer propagated to JS code. They are ignored.
2014-10-29 08:05:36 -07:00

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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/. */
#ifndef dom_plugins_PluginInstanceChild_h
#define dom_plugins_PluginInstanceChild_h 1
#include "mozilla/plugins/PPluginInstanceChild.h"
#include "mozilla/plugins/PluginScriptableObjectChild.h"
#include "mozilla/plugins/StreamNotifyChild.h"
#include "mozilla/plugins/PPluginSurfaceChild.h"
#include "mozilla/ipc/CrossProcessMutex.h"
#include "nsClassHashtable.h"
#if defined(OS_WIN)
#include "mozilla/gfx/SharedDIBWin.h"
#elif defined(MOZ_WIDGET_COCOA)
#include "PluginUtilsOSX.h"
#include "mozilla/gfx/QuartzSupport.h"
#include "base/timer.h"
#endif
#include "npfunctions.h"
#include "nsAutoPtr.h"
#include "nsTArray.h"
#include "ChildAsyncCall.h"
#include "ChildTimer.h"
#include "nsRect.h"
#include "nsTHashtable.h"
#include "mozilla/PaintTracker.h"
#include <map>
#ifdef MOZ_WIDGET_GTK
#include "gtk2xtbin.h"
#endif
class gfxASurface;
namespace mozilla {
namespace layers {
struct RemoteImageData;
}
namespace plugins {
class PBrowserStreamChild;
class BrowserStreamChild;
class StreamNotifyChild;
class PluginInstanceChild : public PPluginInstanceChild
{
friend class BrowserStreamChild;
friend class PluginStreamChild;
friend class StreamNotifyChild;
friend class PluginScriptableObjectChild;
#ifdef OS_WIN
friend LRESULT CALLBACK PluginWindowProc(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam);
static LRESULT CALLBACK PluginWindowProcInternal(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam);
#endif
protected:
virtual bool AnswerNPP_SetWindow(const NPRemoteWindow& window) MOZ_OVERRIDE;
virtual bool
AnswerNPP_GetValue_NPPVpluginWantsAllNetworkStreams(bool* wantsAllStreams, NPError* rv) MOZ_OVERRIDE;
virtual bool
AnswerNPP_GetValue_NPPVpluginNeedsXEmbed(bool* needs, NPError* rv) MOZ_OVERRIDE;
virtual bool
AnswerNPP_GetValue_NPPVpluginScriptableNPObject(PPluginScriptableObjectChild** value,
NPError* result) MOZ_OVERRIDE;
virtual bool
AnswerNPP_GetValue_NPPVpluginNativeAccessibleAtkPlugId(nsCString* aPlugId,
NPError* aResult) MOZ_OVERRIDE;
virtual bool
AnswerNPP_SetValue_NPNVprivateModeBool(const bool& value, NPError* result) MOZ_OVERRIDE;
virtual bool
AnswerNPP_HandleEvent(const NPRemoteEvent& event, int16_t* handled) MOZ_OVERRIDE;
virtual bool
AnswerNPP_HandleEvent_Shmem(const NPRemoteEvent& event,
Shmem& mem,
int16_t* handled,
Shmem* rtnmem) MOZ_OVERRIDE;
virtual bool
AnswerNPP_HandleEvent_IOSurface(const NPRemoteEvent& event,
const uint32_t& surface,
int16_t* handled) MOZ_OVERRIDE;
// Async rendering
virtual bool
RecvAsyncSetWindow(const gfxSurfaceType& aSurfaceType,
const NPRemoteWindow& aWindow) MOZ_OVERRIDE;
virtual void
DoAsyncSetWindow(const gfxSurfaceType& aSurfaceType,
const NPRemoteWindow& aWindow,
bool aIsAsync);
virtual PPluginSurfaceChild*
AllocPPluginSurfaceChild(const WindowsSharedMemoryHandle&,
const gfxIntSize&, const bool&) MOZ_OVERRIDE {
return new PPluginSurfaceChild();
}
virtual bool DeallocPPluginSurfaceChild(PPluginSurfaceChild* s) MOZ_OVERRIDE {
delete s;
return true;
}
virtual bool
AnswerPaint(const NPRemoteEvent& event, int16_t* handled) MOZ_OVERRIDE
{
PaintTracker pt;
return AnswerNPP_HandleEvent(event, handled);
}
virtual bool
RecvWindowPosChanged(const NPRemoteEvent& event) MOZ_OVERRIDE;
virtual bool
RecvContentsScaleFactorChanged(const double& aContentsScaleFactor) MOZ_OVERRIDE;
virtual bool
AnswerNPP_Destroy(NPError* result) MOZ_OVERRIDE;
virtual PPluginScriptableObjectChild*
AllocPPluginScriptableObjectChild() MOZ_OVERRIDE;
virtual bool
DeallocPPluginScriptableObjectChild(PPluginScriptableObjectChild* aObject) MOZ_OVERRIDE;
virtual bool
RecvPPluginScriptableObjectConstructor(PPluginScriptableObjectChild* aActor) MOZ_OVERRIDE;
virtual PBrowserStreamChild*
AllocPBrowserStreamChild(const nsCString& url,
const uint32_t& length,
const uint32_t& lastmodified,
PStreamNotifyChild* notifyData,
const nsCString& headers,
const nsCString& mimeType,
const bool& seekable,
NPError* rv,
uint16_t *stype) MOZ_OVERRIDE;
virtual bool
AnswerPBrowserStreamConstructor(
PBrowserStreamChild* aActor,
const nsCString& url,
const uint32_t& length,
const uint32_t& lastmodified,
PStreamNotifyChild* notifyData,
const nsCString& headers,
const nsCString& mimeType,
const bool& seekable,
NPError* rv,
uint16_t* stype) MOZ_OVERRIDE;
virtual bool
DeallocPBrowserStreamChild(PBrowserStreamChild* stream) MOZ_OVERRIDE;
virtual PPluginStreamChild*
AllocPPluginStreamChild(const nsCString& mimeType,
const nsCString& target,
NPError* result) MOZ_OVERRIDE;
virtual bool
DeallocPPluginStreamChild(PPluginStreamChild* stream) MOZ_OVERRIDE;
virtual PStreamNotifyChild*
AllocPStreamNotifyChild(const nsCString& url, const nsCString& target,
const bool& post, const nsCString& buffer,
const bool& file,
NPError* result) MOZ_OVERRIDE;
virtual bool
DeallocPStreamNotifyChild(PStreamNotifyChild* notifyData) MOZ_OVERRIDE;
virtual bool
AnswerSetPluginFocus() MOZ_OVERRIDE;
virtual bool
AnswerUpdateWindow() MOZ_OVERRIDE;
virtual bool
RecvNPP_DidComposite() MOZ_OVERRIDE;
#if defined(MOZ_X11) && defined(XP_UNIX) && !defined(XP_MACOSX)
bool CreateWindow(const NPRemoteWindow& aWindow);
void DeleteWindow();
#endif
public:
explicit PluginInstanceChild(const NPPluginFuncs* aPluginIface);
virtual ~PluginInstanceChild();
bool Initialize();
NPP GetNPP()
{
return &mData;
}
NPError
NPN_GetValue(NPNVariable aVariable, void* aValue);
NPError
NPN_SetValue(NPPVariable aVariable, void* aValue);
PluginScriptableObjectChild*
GetActorForNPObject(NPObject* aObject);
NPError
NPN_NewStream(NPMIMEType aMIMEType, const char* aWindow,
NPStream** aStream);
void InvalidateRect(NPRect* aInvalidRect);
#ifdef MOZ_WIDGET_COCOA
void Invalidate();
#endif // definied(MOZ_WIDGET_COCOA)
uint32_t ScheduleTimer(uint32_t interval, bool repeat, TimerFunc func);
void UnscheduleTimer(uint32_t id);
void AsyncCall(PluginThreadCallback aFunc, void* aUserData);
int GetQuirks();
void NPN_URLRedirectResponse(void* notifyData, NPBool allow);
void DoAsyncRedraw();
private:
friend class PluginModuleChild;
NPError
InternalGetNPObjectForValue(NPNVariable aValue,
NPObject** aObject);
bool IsAsyncDrawing();
virtual bool RecvUpdateBackground(const SurfaceDescriptor& aBackground,
const nsIntRect& aRect) MOZ_OVERRIDE;
virtual PPluginBackgroundDestroyerChild*
AllocPPluginBackgroundDestroyerChild() MOZ_OVERRIDE;
virtual bool
RecvPPluginBackgroundDestroyerConstructor(PPluginBackgroundDestroyerChild* aActor) MOZ_OVERRIDE;
virtual bool
DeallocPPluginBackgroundDestroyerChild(PPluginBackgroundDestroyerChild* aActor) MOZ_OVERRIDE;
#if defined(OS_WIN)
static bool RegisterWindowClass();
bool CreatePluginWindow();
void DestroyPluginWindow();
void ReparentPluginWindow(HWND hWndParent);
void SizePluginWindow(int width, int height);
int16_t WinlessHandleEvent(NPEvent& event);
void CreateWinlessPopupSurrogate();
void DestroyWinlessPopupSurrogate();
void InitPopupMenuHook();
void SetupFlashMsgThrottle();
void UnhookWinlessFlashThrottle();
void HookSetWindowLongPtr();
static inline bool SetWindowLongHookCheck(HWND hWnd,
int nIndex,
LONG_PTR newLong);
void FlashThrottleMessage(HWND, UINT, WPARAM, LPARAM, bool);
static LRESULT CALLBACK DummyWindowProc(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam);
static LRESULT CALLBACK PluginWindowProc(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam);
static BOOL WINAPI TrackPopupHookProc(HMENU hMenu,
UINT uFlags,
int x,
int y,
int nReserved,
HWND hWnd,
CONST RECT *prcRect);
static BOOL CALLBACK EnumThreadWindowsCallback(HWND hWnd,
LPARAM aParam);
static LRESULT CALLBACK WinlessHiddenFlashWndProc(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam);
#ifdef _WIN64
static LONG_PTR WINAPI SetWindowLongPtrAHook(HWND hWnd,
int nIndex,
LONG_PTR newLong);
static LONG_PTR WINAPI SetWindowLongPtrWHook(HWND hWnd,
int nIndex,
LONG_PTR newLong);
#else
static LONG WINAPI SetWindowLongAHook(HWND hWnd,
int nIndex,
LONG newLong);
static LONG WINAPI SetWindowLongWHook(HWND hWnd,
int nIndex,
LONG newLong);
#endif
class FlashThrottleAsyncMsg : public ChildAsyncCall
{
public:
FlashThrottleAsyncMsg();
FlashThrottleAsyncMsg(PluginInstanceChild* aInst,
HWND aWnd, UINT aMsg,
WPARAM aWParam, LPARAM aLParam,
bool isWindowed)
: ChildAsyncCall(aInst, nullptr, nullptr),
mWnd(aWnd),
mMsg(aMsg),
mWParam(aWParam),
mLParam(aLParam),
mWindowed(isWindowed)
{}
void Run() MOZ_OVERRIDE;
WNDPROC GetProc();
HWND GetWnd() { return mWnd; }
UINT GetMsg() { return mMsg; }
WPARAM GetWParam() { return mWParam; }
LPARAM GetLParam() { return mLParam; }
private:
HWND mWnd;
UINT mMsg;
WPARAM mWParam;
LPARAM mLParam;
bool mWindowed;
};
#endif
const NPPluginFuncs* mPluginIface;
NPP_t mData;
NPWindow mWindow;
#if defined(XP_MACOSX)
double mContentsScaleFactor;
#endif
int16_t mDrawingModel;
mozilla::Mutex mAsyncInvalidateMutex;
CancelableTask *mAsyncInvalidateTask;
// Cached scriptable actors to avoid IPC churn
PluginScriptableObjectChild* mCachedWindowActor;
PluginScriptableObjectChild* mCachedElementActor;
#if defined(MOZ_X11) && defined(XP_UNIX) && !defined(XP_MACOSX)
NPSetWindowCallbackStruct mWsInfo;
#ifdef MOZ_WIDGET_GTK
bool mXEmbed;
XtClient mXtClient;
#endif
#elif defined(OS_WIN)
HWND mPluginWindowHWND;
WNDPROC mPluginWndProc;
HWND mPluginParentHWND;
int mNestedEventLevelDepth;
HWND mCachedWinlessPluginHWND;
HWND mWinlessPopupSurrogateHWND;
nsIntPoint mPluginSize;
WNDPROC mWinlessThrottleOldWndProc;
HWND mWinlessHiddenMsgHWND;
#endif
friend class ChildAsyncCall;
Mutex mAsyncCallMutex;
nsTArray<ChildAsyncCall*> mPendingAsyncCalls;
nsTArray<nsAutoPtr<ChildTimer> > mTimers;
/**
* During destruction we enumerate all remaining scriptable objects and
* invalidate/delete them. Enumeration can re-enter, so maintain a
* hash separate from PluginModuleChild.mObjectMap.
*/
nsAutoPtr< nsTHashtable<DeletingObjectEntry> > mDeletingHash;
#if defined(OS_WIN)
private:
// Shared dib rendering management for windowless plugins.
bool SharedSurfaceSetWindow(const NPRemoteWindow& aWindow);
int16_t SharedSurfacePaint(NPEvent& evcopy);
void SharedSurfaceRelease();
bool AlphaExtractCacheSetup();
void AlphaExtractCacheRelease();
void UpdatePaintClipRect(RECT* aRect);
private:
enum {
RENDER_NATIVE,
RENDER_BACK_ONE,
RENDER_BACK_TWO
};
gfx::SharedDIBWin mSharedSurfaceDib;
struct {
uint16_t doublePass;
HDC hdc;
HBITMAP bmp;
} mAlphaExtract;
#endif // defined(OS_WIN)
#if defined(MOZ_WIDGET_COCOA)
private:
#if defined(__i386__)
NPEventModel mEventModel;
#endif
CGColorSpaceRef mShColorSpace;
CGContextRef mShContext;
mozilla::RefPtr<nsCARenderer> mCARenderer;
void *mCGLayer;
// Core Animation drawing model requires a refresh timer.
uint32_t mCARefreshTimer;
public:
const NPCocoaEvent* getCurrentEvent() {
return mCurrentEvent;
}
bool CGDraw(CGContextRef ref, nsIntRect aUpdateRect);
#if defined(__i386__)
NPEventModel EventModel() { return mEventModel; }
#endif
private:
const NPCocoaEvent *mCurrentEvent;
#endif
bool CanPaintOnBackground();
bool IsVisible() {
#ifdef XP_MACOSX
return mWindow.clipRect.top != mWindow.clipRect.bottom &&
mWindow.clipRect.left != mWindow.clipRect.right;
#else
return mWindow.clipRect.top != 0 ||
mWindow.clipRect.left != 0 ||
mWindow.clipRect.bottom != 0 ||
mWindow.clipRect.right != 0;
#endif
}
// ShowPluginFrame - in general does four things:
// 1) Create mCurrentSurface optimized for rendering to parent process
// 2) Updated mCurrentSurface to be a complete copy of mBackSurface
// 3) Draw the invalidated plugin area into mCurrentSurface
// 4) Send it to parent process.
bool ShowPluginFrame(void);
// If we can read back safely from mBackSurface, copy
// mSurfaceDifferenceRect from mBackSurface to mFrontSurface.
// @return Whether the back surface could be read.
bool ReadbackDifferenceRect(const nsIntRect& rect);
// Post ShowPluginFrame task
void AsyncShowPluginFrame(void);
// In the PaintRect functions, aSurface is the size of the full plugin
// window. Each PaintRect function renders into the subrectangle aRect of
// aSurface (possibly more if we're working around a Flash bug).
// Paint plugin content rectangle to surface with bg color filling
void PaintRectToSurface(const nsIntRect& aRect,
gfxASurface* aSurface,
const gfxRGBA& aColor);
// Render plugin content to surface using
// white/black image alpha extraction algorithm
void PaintRectWithAlphaExtraction(const nsIntRect& aRect,
gfxASurface* aSurface);
// Call plugin NPAPI function to render plugin content to surface
// @param - aSurface - should be compatible with current platform plugin rendering
// @return - FALSE if plugin not painted to surface
void PaintRectToPlatformSurface(const nsIntRect& aRect,
gfxASurface* aSurface);
// Update NPWindow platform attributes and call plugin "setwindow"
// @param - aForceSetWindow - call setwindow even if platform attributes are the same
void UpdateWindowAttributes(bool aForceSetWindow = false);
// Create optimized mCurrentSurface for parent process rendering
// @return FALSE if optimized surface not created
bool CreateOptSurface(void);
// Create mHelperSurface if mCurrentSurface non compatible with plugins
// @return TRUE if helper surface created successfully, or not needed
bool MaybeCreatePlatformHelperSurface(void);
// Make sure that we have surface for rendering
bool EnsureCurrentBuffer(void);
// Helper function for delayed InvalidateRect call
// non null mCurrentInvalidateTask will call this function
void InvalidateRectDelayed(void);
// Clear mCurrentSurface/mCurrentSurfaceActor/mHelperSurface
void ClearCurrentSurface();
// Swap mCurrentSurface/mBackSurface and their associated actors
void SwapSurfaces();
// Clear all surfaces in response to NPP_Destroy
void ClearAllSurfaces();
void Destroy();
void ActorDestroy(ActorDestroyReason why);
// Set as true when SetupLayer called
// and go with different path in InvalidateRect function
bool mLayersRendering;
// Current surface available for rendering
nsRefPtr<gfxASurface> mCurrentSurface;
// Back surface, just keeping reference to
// surface which is on ParentProcess side
nsRefPtr<gfxASurface> mBackSurface;
#ifdef XP_MACOSX
// Current IOSurface available for rendering
// We can't use thebes gfxASurface like other platforms.
PluginUtilsOSX::nsDoubleBufferCARenderer mDoubleBufferCARenderer;
#endif
// (Not to be confused with mBackSurface). This is a recent copy
// of the opaque pixels under our object frame, if
// |mIsTransparent|. We ask the plugin render directly onto a
// copy of the background pixels if available, and fall back on
// alpha recovery otherwise.
nsRefPtr<gfxASurface> mBackground;
#ifdef XP_WIN
// These actors mirror mCurrentSurface/mBackSurface
PPluginSurfaceChild* mCurrentSurfaceActor;
PPluginSurfaceChild* mBackSurfaceActor;
#endif
// Accumulated invalidate rect, while back buffer is not accessible,
// in plugin coordinates.
nsIntRect mAccumulatedInvalidRect;
// Plugin only call SetTransparent
// and does not remember their transparent state
// and p->getvalue return always false
bool mIsTransparent;
// Surface type optimized of parent process
gfxSurfaceType mSurfaceType;
// Keep InvalidateRect task pointer to be able Cancel it on Destroy
CancelableTask *mCurrentInvalidateTask;
// Keep AsyncSetWindow task pointer to be able to Cancel it on Destroy
CancelableTask *mCurrentAsyncSetWindowTask;
// True while plugin-child in plugin call
// Use to prevent plugin paint re-enter
bool mPendingPluginCall;
// On some platforms, plugins may not support rendering to a surface with
// alpha, or not support rendering to an image surface.
// In those cases we need to draw to a temporary platform surface; we cache
// that surface here.
nsRefPtr<gfxASurface> mHelperSurface;
// true when plugin does not support painting to ARGB32
// surface this is false if plugin supports
// NPPVpluginTransparentAlphaBool (which is not part of
// NPAPI yet)
bool mDoAlphaExtraction;
// true when the plugin has painted at least once. We use this to ensure
// that we ask a plugin to paint at least once even if it's invisible;
// some plugin (instances) rely on this in order to work properly.
bool mHasPainted;
// Cached rectangle rendered to previous surface(mBackSurface)
// Used for reading back to current surface and syncing data,
// in plugin coordinates.
nsIntRect mSurfaceDifferenceRect;
// Has this instance been destroyed, either by ActorDestroy or NPP_Destroy?
bool mDestroyed;
};
} // namespace plugins
} // namespace mozilla
#endif // ifndef dom_plugins_PluginInstanceChild_h
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