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Mirror of roytam1's UXP fork just in case Moonchild and Tobin decide to go after him
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UXP/dom/plugins/ipc/PluginModuleChild.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set 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 "mozilla/plugins/PluginModuleChild.h"
/* This must occur *after* plugins/PluginModuleChild.h to avoid typedefs conflicts. */
#include "mozilla/ArrayUtils.h"
#include "mozilla/ipc/MessageChannel.h"
#ifdef MOZ_WIDGET_GTK
#include <gtk/gtk.h>
#endif
#include "nsIFile.h"
#include "pratom.h"
#include "nsDebug.h"
#include "nsCOMPtr.h"
#include "nsPluginsDir.h"
#include "nsXULAppAPI.h"
#ifdef MOZ_X11
# include "nsX11ErrorHandler.h"
# include "mozilla/X11Util.h"
#endif
#include "mozilla/ipc/ProcessChild.h"
#include "mozilla/plugins/PluginInstanceChild.h"
#include "mozilla/plugins/StreamNotifyChild.h"
#include "mozilla/plugins/BrowserStreamChild.h"
#include "mozilla/plugins/PluginStreamChild.h"
#include "mozilla/Sprintf.h"
#include "mozilla/Unused.h"
#include "nsNPAPIPlugin.h"
#ifdef XP_WIN
#include "nsWindowsDllInterceptor.h"
#include "mozilla/widget/AudioSession.h"
#include "WinUtils.h"
#include <knownfolders.h>
#endif
#ifdef MOZ_WIDGET_COCOA
#include "PluginInterposeOSX.h"
#include "PluginUtilsOSX.h"
#endif
#include "GeckoProfiler.h"
using namespace mozilla;
using namespace mozilla::ipc;
using namespace mozilla::plugins;
using namespace mozilla::widget;
#if defined(XP_WIN)
const wchar_t * kFlashFullscreenClass = L"ShockwaveFlashFullScreen";
const wchar_t * kMozillaWindowClass = L"MozillaWindowClass";
#endif
namespace {
// see PluginModuleChild::GetChrome()
PluginModuleChild* gChromeInstance = nullptr;
} // namespace
#ifdef XP_WIN
// Hooking CreateFileW for protected-mode magic
static WindowsDllInterceptor sKernel32Intercept;
typedef HANDLE (WINAPI *CreateFileWPtr)(LPCWSTR fname, DWORD access,
DWORD share,
LPSECURITY_ATTRIBUTES security,
DWORD creation, DWORD flags,
HANDLE ftemplate);
static CreateFileWPtr sCreateFileWStub = nullptr;
typedef HANDLE (WINAPI *CreateFileAPtr)(LPCSTR fname, DWORD access,
DWORD share,
LPSECURITY_ATTRIBUTES security,
DWORD creation, DWORD flags,
HANDLE ftemplate);
static CreateFileAPtr sCreateFileAStub = nullptr;
// Used with fix for flash fullscreen window loosing focus.
static bool gDelayFlashFocusReplyUntilEval = false;
// Used to fix GetWindowInfo problems with internal flash settings dialogs
static WindowsDllInterceptor sUser32Intercept;
typedef BOOL (WINAPI *GetWindowInfoPtr)(HWND hwnd, PWINDOWINFO pwi);
static GetWindowInfoPtr sGetWindowInfoPtrStub = nullptr;
static HWND sBrowserHwnd = nullptr;
// sandbox process doesn't get current key states. So we need get it on chrome.
typedef SHORT (WINAPI *GetKeyStatePtr)(int);
static GetKeyStatePtr sGetKeyStatePtrStub = nullptr;
#endif
/* static */
PluginModuleChild*
PluginModuleChild::CreateForContentProcess(mozilla::ipc::Transport* aTransport,
base::ProcessId aOtherPid)
{
PluginModuleChild* child = new PluginModuleChild(false);
if (!child->InitForContent(aOtherPid, XRE_GetIOMessageLoop(), aTransport)) {
return nullptr;
}
return child;
}
PluginModuleChild::PluginModuleChild(bool aIsChrome)
: mLibrary(0)
, mPluginFilename("")
, mQuirks(QUIRKS_NOT_INITIALIZED)
, mIsChrome(aIsChrome)
, mHasShutdown(false)
, mTransport(nullptr)
, mShutdownFunc(0)
, mInitializeFunc(0)
#if defined(OS_WIN) || defined(OS_MACOSX)
, mGetEntryPointsFunc(0)
#elif defined(MOZ_WIDGET_GTK)
, mNestedLoopTimerId(0)
#endif
#ifdef OS_WIN
, mNestedEventHook(nullptr)
, mGlobalCallWndProcHook(nullptr)
, mAsyncRenderSupport(false)
#endif
{
memset(&mFunctions, 0, sizeof(mFunctions));
if (mIsChrome) {
MOZ_ASSERT(!gChromeInstance);
gChromeInstance = this;
}
#ifdef XP_MACOSX
if (aIsChrome) {
mac_plugin_interposing::child::SetUpCocoaInterposing();
}
#endif
}
PluginModuleChild::~PluginModuleChild()
{
if (mIsChrome) {
MOZ_ASSERT(gChromeInstance == this);
// We don't unload the plugin library in case it uses atexit handlers or
// other similar hooks.
DeinitGraphics();
PluginScriptableObjectChild::ClearIdentifiers();
gChromeInstance = nullptr;
}
}
// static
PluginModuleChild*
PluginModuleChild::GetChrome()
{
// A special PluginModuleChild instance that talks to the chrome process
// during startup and shutdown. Synchronous messages to or from this actor
// should be avoided because they may lead to hangs.
MOZ_ASSERT(gChromeInstance);
return gChromeInstance;
}
bool
PluginModuleChild::CommonInit(base::ProcessId aParentPid,
MessageLoop* aIOLoop,
IPC::Channel* aChannel)
{
PLUGIN_LOG_DEBUG_METHOD;
// Request Windows message deferral behavior on our channel. This
// applies to the top level and all sub plugin protocols since they
// all share the same channel.
// Bug 1090573 - Don't do this for connections to content processes.
GetIPCChannel()->SetChannelFlags(MessageChannel::REQUIRE_DEFERRED_MESSAGE_PROTECTION);
if (!Open(aChannel, aParentPid, aIOLoop)) {
return false;
}
memset((void*) &mFunctions, 0, sizeof(mFunctions));
mFunctions.size = sizeof(mFunctions);
mFunctions.version = (NP_VERSION_MAJOR << 8) | NP_VERSION_MINOR;
return true;
}
bool
PluginModuleChild::InitForContent(base::ProcessId aParentPid,
MessageLoop* aIOLoop,
IPC::Channel* aChannel)
{
if (!CommonInit(aParentPid, aIOLoop, aChannel)) {
return false;
}
mTransport = aChannel;
mLibrary = GetChrome()->mLibrary;
mFunctions = GetChrome()->mFunctions;
return true;
}
bool
PluginModuleChild::RecvDisableFlashProtectedMode()
{
MOZ_ASSERT(mIsChrome);
#ifdef XP_WIN
HookProtectedMode();
#else
MOZ_ASSERT(false, "Should not be called");
#endif
return true;
}
bool
PluginModuleChild::InitForChrome(const std::string& aPluginFilename,
base::ProcessId aParentPid,
MessageLoop* aIOLoop,
IPC::Channel* aChannel)
{
NS_ASSERTION(aChannel, "need a channel");
if (!InitGraphics())
return false;
mPluginFilename = aPluginFilename.c_str();
nsCOMPtr<nsIFile> localFile;
NS_NewLocalFile(NS_ConvertUTF8toUTF16(mPluginFilename),
true,
getter_AddRefs(localFile));
if (!localFile)
return false;
bool exists;
localFile->Exists(&exists);
NS_ASSERTION(exists, "plugin file ain't there");
nsPluginFile pluginFile(localFile);
nsPluginInfo info = nsPluginInfo();
if (NS_FAILED(pluginFile.GetPluginInfo(info, &mLibrary))) {
return false;
}
#if defined(XP_WIN)
// XXX quirks isn't initialized yet
mAsyncRenderSupport = info.fSupportsAsyncRender;
#endif
#if defined(MOZ_X11)
NS_NAMED_LITERAL_CSTRING(flash10Head, "Shockwave Flash 10.");
if (StringBeginsWith(nsDependentCString(info.fDescription), flash10Head)) {
AddQuirk(QUIRK_FLASH_EXPOSE_COORD_TRANSLATION);
}
#endif
#if defined(XP_MACOSX)
const char* namePrefix = "Plugin Content";
char nameBuffer[80];
SprintfLiteral(nameBuffer, "%s (%s)", namePrefix, info.fName);
mozilla::plugins::PluginUtilsOSX::SetProcessName(nameBuffer);
#endif
pluginFile.FreePluginInfo(info);
#if defined(MOZ_X11) || defined(XP_MACOSX)
if (!mLibrary)
#endif
{
nsresult rv = pluginFile.LoadPlugin(&mLibrary);
if (NS_FAILED(rv))
return false;
}
NS_ASSERTION(mLibrary, "couldn't open shared object");
if (!CommonInit(aParentPid, aIOLoop, aChannel)) {
return false;
}
GetIPCChannel()->SetAbortOnError(true);
// TODO: use PluginPRLibrary here
#if defined(OS_LINUX) || defined(OS_BSD)
mShutdownFunc =
(NP_PLUGINSHUTDOWN) PR_FindFunctionSymbol(mLibrary, "NP_Shutdown");
// create the new plugin handler
mInitializeFunc =
(NP_PLUGINUNIXINIT) PR_FindFunctionSymbol(mLibrary, "NP_Initialize");
NS_ASSERTION(mInitializeFunc, "couldn't find NP_Initialize()");
#elif defined(OS_WIN) || defined(OS_MACOSX)
mShutdownFunc =
(NP_PLUGINSHUTDOWN)PR_FindFunctionSymbol(mLibrary, "NP_Shutdown");
mGetEntryPointsFunc =
(NP_GETENTRYPOINTS)PR_FindSymbol(mLibrary, "NP_GetEntryPoints");
NS_ENSURE_TRUE(mGetEntryPointsFunc, false);
mInitializeFunc =
(NP_PLUGININIT)PR_FindFunctionSymbol(mLibrary, "NP_Initialize");
NS_ENSURE_TRUE(mInitializeFunc, false);
#else
# error Please copy the initialization code from nsNPAPIPlugin.cpp
#endif
return true;
}
#if defined(MOZ_WIDGET_GTK)
typedef void (*GObjectDisposeFn)(GObject*);
typedef gboolean (*GtkWidgetScrollEventFn)(GtkWidget*, GdkEventScroll*);
typedef void (*GtkPlugEmbeddedFn)(GtkPlug*);
static GObjectDisposeFn real_gtk_plug_dispose;
static GtkPlugEmbeddedFn real_gtk_plug_embedded;
static void
undo_bogus_unref(gpointer data, GObject* object, gboolean is_last_ref) {
if (!is_last_ref) // recursion in g_object_ref
return;
g_object_ref(object);
}
static void
wrap_gtk_plug_dispose(GObject* object) {
// Work around Flash Player bug described in bug 538914.
//
// This function is called during gtk_widget_destroy and/or before
// the object's last reference is removed. A reference to the
// object is held during the call so the ref count should not drop
// to zero. However, Flash Player tries to destroy the GtkPlug
// using g_object_unref instead of gtk_widget_destroy. The
// reference that Flash is removing actually belongs to the
// GtkPlug. During real_gtk_plug_dispose, the GtkPlug removes its
// reference.
//
// A toggle ref is added to prevent premature deletion of the object
// caused by Flash Player's extra unref, and to detect when there are
// unexpectedly no other references.
g_object_add_toggle_ref(object, undo_bogus_unref, nullptr);
(*real_gtk_plug_dispose)(object);
g_object_remove_toggle_ref(object, undo_bogus_unref, nullptr);
}
static gboolean
gtk_plug_scroll_event(GtkWidget *widget, GdkEventScroll *gdk_event)
{
if (!gtk_widget_is_toplevel(widget)) // in same process as its GtkSocket
return FALSE; // event not handled; propagate to GtkSocket
GdkWindow* socket_window = gtk_plug_get_socket_window(GTK_PLUG(widget));
if (!socket_window)
return FALSE;
// Propagate the event to the embedder.
GdkScreen* screen = gdk_window_get_screen(socket_window);
GdkWindow* plug_window = gtk_widget_get_window(widget);
GdkWindow* event_window = gdk_event->window;
gint x = gdk_event->x;
gint y = gdk_event->y;
unsigned int button;
unsigned int button_mask = 0;
XEvent xevent;
Display* dpy = GDK_WINDOW_XDISPLAY(socket_window);
/* Translate the event coordinates to the plug window,
* which should be aligned with the socket window.
*/
while (event_window != plug_window)
{
gint dx, dy;
gdk_window_get_position(event_window, &dx, &dy);
x += dx;
y += dy;
event_window = gdk_window_get_parent(event_window);
if (!event_window)
return FALSE;
}
switch (gdk_event->direction) {
case GDK_SCROLL_UP:
button = 4;
button_mask = Button4Mask;
break;
case GDK_SCROLL_DOWN:
button = 5;
button_mask = Button5Mask;
break;
case GDK_SCROLL_LEFT:
button = 6;
break;
case GDK_SCROLL_RIGHT:
button = 7;
break;
default:
return FALSE; // unknown GdkScrollDirection
}
memset(&xevent, 0, sizeof(xevent));
xevent.xbutton.type = ButtonPress;
xevent.xbutton.window = gdk_x11_window_get_xid(socket_window);
xevent.xbutton.root = gdk_x11_window_get_xid(gdk_screen_get_root_window(screen));
xevent.xbutton.subwindow = gdk_x11_window_get_xid(plug_window);
xevent.xbutton.time = gdk_event->time;
xevent.xbutton.x = x;
xevent.xbutton.y = y;
xevent.xbutton.x_root = gdk_event->x_root;
xevent.xbutton.y_root = gdk_event->y_root;
xevent.xbutton.state = gdk_event->state;
xevent.xbutton.button = button;
xevent.xbutton.same_screen = True;
gdk_error_trap_push();
XSendEvent(dpy, xevent.xbutton.window,
True, ButtonPressMask, &xevent);
xevent.xbutton.type = ButtonRelease;
xevent.xbutton.state |= button_mask;
XSendEvent(dpy, xevent.xbutton.window,
True, ButtonReleaseMask, &xevent);
gdk_display_sync(gdk_screen_get_display(screen));
gdk_error_trap_pop();
return TRUE; // event handled
}
static void
wrap_gtk_plug_embedded(GtkPlug* plug) {
GdkWindow* socket_window = gtk_plug_get_socket_window(plug);
if (socket_window) {
if (gtk_check_version(2,18,7) != nullptr // older
&& g_object_get_data(G_OBJECT(socket_window),
"moz-existed-before-set-window")) {
// Add missing reference for
// https://bugzilla.gnome.org/show_bug.cgi?id=607061
g_object_ref(socket_window);
}
// Ensure the window exists to make this GtkPlug behave like an
// in-process GtkPlug for Flash Player. (Bugs 561308 and 539138).
gtk_widget_realize(GTK_WIDGET(plug));
}
if (*real_gtk_plug_embedded) {
(*real_gtk_plug_embedded)(plug);
}
}
//
// The next four constants are knobs that can be tuned. They trade
// off potential UI lag from delayed event processing with CPU time.
//
static const gint kNestedLoopDetectorPriority = G_PRIORITY_HIGH_IDLE;
// 90ms so that we can hopefully break livelocks before the user
// notices UI lag (100ms)
static const guint kNestedLoopDetectorIntervalMs = 90;
static const gint kBrowserEventPriority = G_PRIORITY_HIGH_IDLE;
static const guint kBrowserEventIntervalMs = 10;
// static
gboolean
PluginModuleChild::DetectNestedEventLoop(gpointer data)
{
PluginModuleChild* pmc = static_cast<PluginModuleChild*>(data);
MOZ_ASSERT(0 != pmc->mNestedLoopTimerId,
"callback after descheduling");
MOZ_ASSERT(pmc->mTopLoopDepth < g_main_depth(),
"not canceled before returning to main event loop!");
PLUGIN_LOG_DEBUG(("Detected nested glib event loop"));
// just detected a nested loop; start a timer that will
// periodically rpc-call back into the browser and process some
// events
pmc->mNestedLoopTimerId =
g_timeout_add_full(kBrowserEventPriority,
kBrowserEventIntervalMs,
PluginModuleChild::ProcessBrowserEvents,
data,
nullptr);
// cancel the nested-loop detection timer
return FALSE;
}
// static
gboolean
PluginModuleChild::ProcessBrowserEvents(gpointer data)
{
PluginModuleChild* pmc = static_cast<PluginModuleChild*>(data);
MOZ_ASSERT(pmc->mTopLoopDepth < g_main_depth(),
"not canceled before returning to main event loop!");
pmc->CallProcessSomeEvents();
return TRUE;
}
void
PluginModuleChild::EnteredCxxStack()
{
MOZ_ASSERT(0 == mNestedLoopTimerId,
"previous timer not descheduled");
mNestedLoopTimerId =
g_timeout_add_full(kNestedLoopDetectorPriority,
kNestedLoopDetectorIntervalMs,
PluginModuleChild::DetectNestedEventLoop,
this,
nullptr);
#ifdef DEBUG
mTopLoopDepth = g_main_depth();
#endif
}
void
PluginModuleChild::ExitedCxxStack()
{
MOZ_ASSERT(0 < mNestedLoopTimerId,
"nested loop timeout not scheduled");
g_source_remove(mNestedLoopTimerId);
mNestedLoopTimerId = 0;
}
#endif
bool
PluginModuleChild::RecvSetParentHangTimeout(const uint32_t& aSeconds)
{
#ifdef XP_WIN
SetReplyTimeoutMs(((aSeconds > 0) ? (1000 * aSeconds) : 0));
#endif
return true;
}
bool
PluginModuleChild::ShouldContinueFromReplyTimeout()
{
#ifdef XP_WIN
NS_RUNTIMEABORT("terminating child process");
#endif
return true;
}
bool
PluginModuleChild::InitGraphics()
{
#if defined(MOZ_WIDGET_GTK)
// Work around plugins that don't interact well with GDK
// client-side windows.
PR_SetEnv("GDK_NATIVE_WINDOWS=1");
gtk_init(0, 0);
// GtkPlug is a static class so will leak anyway but this ref makes sure.
gpointer gtk_plug_class = g_type_class_ref(GTK_TYPE_PLUG);
// The dispose method is a good place to hook into the destruction process
// because the reference count should be 1 the last time dispose is
// called. (Toggle references wouldn't detect if the reference count
// might be higher.)
GObjectDisposeFn* dispose = &G_OBJECT_CLASS(gtk_plug_class)->dispose;
MOZ_ASSERT(*dispose != wrap_gtk_plug_dispose,
"InitGraphics called twice");
real_gtk_plug_dispose = *dispose;
*dispose = wrap_gtk_plug_dispose;
// If we ever stop setting GDK_NATIVE_WINDOWS, we'll also need to
// gtk_widget_add_events GDK_SCROLL_MASK or GDK client-side windows will
// not tell us about the scroll events that it intercepts. With native
// windows, this is called when GDK intercepts the events; if GDK doesn't
// intercept the events, then the X server will instead send them directly
// to an ancestor (embedder) window.
GtkWidgetScrollEventFn* scroll_event =
&GTK_WIDGET_CLASS(gtk_plug_class)->scroll_event;
if (!*scroll_event) {
*scroll_event = gtk_plug_scroll_event;
}
GtkPlugEmbeddedFn* embedded = &GTK_PLUG_CLASS(gtk_plug_class)->embedded;
real_gtk_plug_embedded = *embedded;
*embedded = wrap_gtk_plug_embedded;
#else
// may not be necessary on all platforms
#endif
#ifdef MOZ_X11
// Do this after initializing GDK, or GDK will install its own handler.
InstallX11ErrorHandler();
#endif
return true;
}
void
PluginModuleChild::DeinitGraphics()
{
#if defined(MOZ_X11) && defined(NS_FREE_PERMANENT_DATA)
// We free some data off of XDisplay close hooks, ensure they're
// run. Closing the display is pretty scary, so we only do it to
// silence leak checkers.
XCloseDisplay(DefaultXDisplay());
#endif
}
NPError
PluginModuleChild::NP_Shutdown()
{
AssertPluginThread();
MOZ_ASSERT(mIsChrome);
if (mHasShutdown) {
return NPERR_NO_ERROR;
}
#if defined XP_WIN
mozilla::widget::StopAudioSession();
#endif
// the PluginModuleParent shuts down this process after this interrupt
// call pops off its stack
NPError rv = mShutdownFunc ? mShutdownFunc() : NPERR_NO_ERROR;
// weakly guard against re-entry after NP_Shutdown
memset(&mFunctions, 0, sizeof(mFunctions));
#ifdef OS_WIN
ResetEventHooks();
#endif
GetIPCChannel()->SetAbortOnError(false);
mHasShutdown = true;
return rv;
}
bool
PluginModuleChild::AnswerNP_Shutdown(NPError *rv)
{
*rv = NP_Shutdown();
return true;
}
bool
PluginModuleChild::AnswerOptionalFunctionsSupported(bool *aURLRedirectNotify,
bool *aClearSiteData,
bool *aGetSitesWithData)
{
*aURLRedirectNotify = !!mFunctions.urlredirectnotify;
*aClearSiteData = !!mFunctions.clearsitedata;
*aGetSitesWithData = !!mFunctions.getsiteswithdata;
return true;
}
bool
PluginModuleChild::RecvNPP_ClearSiteData(const nsCString& aSite,
const uint64_t& aFlags,
const uint64_t& aMaxAge,
const uint64_t& aCallbackId)
{
NPError result =
mFunctions.clearsitedata(NullableStringGet(aSite), aFlags, aMaxAge);
SendReturnClearSiteData(result, aCallbackId);
return true;
}
bool
PluginModuleChild::RecvNPP_GetSitesWithData(const uint64_t& aCallbackId)
{
char** result = mFunctions.getsiteswithdata();
InfallibleTArray<nsCString> array;
if (!result) {
SendReturnSitesWithData(array, aCallbackId);
return true;
}
char** iterator = result;
while (*iterator) {
array.AppendElement(*iterator);
free(*iterator);
++iterator;
}
SendReturnSitesWithData(array, aCallbackId);
free(result);
return true;
}
bool
PluginModuleChild::RecvSetAudioSessionData(const nsID& aId,
const nsString& aDisplayName,
const nsString& aIconPath)
{
#if !defined XP_WIN
NS_RUNTIMEABORT("Not Reached!");
return false;
#else
nsresult rv = mozilla::widget::RecvAudioSessionData(aId, aDisplayName, aIconPath);
NS_ENSURE_SUCCESS(rv, true); // Bail early if this fails
// Ignore failures here; we can't really do anything about them
mozilla::widget::StartAudioSession();
return true;
#endif
}
PPluginModuleChild*
PluginModuleChild::AllocPPluginModuleChild(mozilla::ipc::Transport* aTransport,
base::ProcessId aOtherPid)
{
return PluginModuleChild::CreateForContentProcess(aTransport, aOtherPid);
}
void
PluginModuleChild::ActorDestroy(ActorDestroyReason why)
{
if (!mIsChrome) {
PluginModuleChild* chromeInstance = PluginModuleChild::GetChrome();
if (chromeInstance) {
chromeInstance->SendNotifyContentModuleDestroyed();
}
// Destroy ourselves once we finish other teardown activities.
RefPtr<DeleteTask<PluginModuleChild>> task =
new DeleteTask<PluginModuleChild>(this);
MessageLoop::current()->PostTask(task.forget());
return;
}
if (AbnormalShutdown == why) {
NS_WARNING("shutting down early because of crash!");
ProcessChild::QuickExit();
}
if (!mHasShutdown) {
MOZ_ASSERT(gChromeInstance == this);
NP_Shutdown();
}
// doesn't matter why we're being destroyed; it's up to us to
// initiate (clean) shutdown
XRE_ShutdownChildProcess();
}
void
PluginModuleChild::CleanUp()
{
}
const char*
PluginModuleChild::GetUserAgent()
{
return NullableStringGet(Settings().userAgent());
}
//-----------------------------------------------------------------------------
// FIXME/cjones: just getting this out of the way for the moment ...
namespace mozilla {
namespace plugins {
namespace child {
static NPError
_requestread(NPStream *pstream, NPByteRange *rangeList);
static NPError
_geturlnotify(NPP aNPP, const char* relativeURL, const char* target,
void* notifyData);
static NPError
_getvalue(NPP aNPP, NPNVariable variable, void *r_value);
static NPError
_setvalue(NPP aNPP, NPPVariable variable, void *r_value);
static NPError
_geturl(NPP aNPP, const char* relativeURL, const char* target);
static NPError
_posturlnotify(NPP aNPP, const char* relativeURL, const char *target,
uint32_t len, const char *buf, NPBool file, void* notifyData);
static NPError
_posturl(NPP aNPP, const char* relativeURL, const char *target, uint32_t len,
const char *buf, NPBool file);
static NPError
_newstream(NPP aNPP, NPMIMEType type, const char* window, NPStream** pstream);
static int32_t
_write(NPP aNPP, NPStream *pstream, int32_t len, void *buffer);
static NPError
_destroystream(NPP aNPP, NPStream *pstream, NPError reason);
static void
_status(NPP aNPP, const char *message);
static void
_memfree (void *ptr);
static uint32_t
_memflush(uint32_t size);
static void
_reloadplugins(NPBool reloadPages);
static void
_invalidaterect(NPP aNPP, NPRect *invalidRect);
static void
_invalidateregion(NPP aNPP, NPRegion invalidRegion);
static void
_forceredraw(NPP aNPP);
static const char*
_useragent(NPP aNPP);
static void*
_memalloc (uint32_t size);
// Deprecated entry points for the old Java plugin.
static void* /* OJI type: JRIEnv* */
_getjavaenv(void);
// Deprecated entry points for the old Java plugin.
static void* /* OJI type: jref */
_getjavapeer(NPP aNPP);
static bool
_invoke(NPP aNPP, NPObject* npobj, NPIdentifier method, const NPVariant *args,
uint32_t argCount, NPVariant *result);
static bool
_invokedefault(NPP aNPP, NPObject* npobj, const NPVariant *args,
uint32_t argCount, NPVariant *result);
static bool
_evaluate(NPP aNPP, NPObject* npobj, NPString *script, NPVariant *result);
static bool
_getproperty(NPP aNPP, NPObject* npobj, NPIdentifier property,
NPVariant *result);
static bool
_setproperty(NPP aNPP, NPObject* npobj, NPIdentifier property,
const NPVariant *value);
static bool
_removeproperty(NPP aNPP, NPObject* npobj, NPIdentifier property);
static bool
_hasproperty(NPP aNPP, NPObject* npobj, NPIdentifier propertyName);
static bool
_hasmethod(NPP aNPP, NPObject* npobj, NPIdentifier methodName);
static bool
_enumerate(NPP aNPP, NPObject *npobj, NPIdentifier **identifier,
uint32_t *count);
static bool
_construct(NPP aNPP, NPObject* npobj, const NPVariant *args,
uint32_t argCount, NPVariant *result);
static void
_releasevariantvalue(NPVariant *variant);
static void
_setexception(NPObject* npobj, const NPUTF8 *message);
static void
_pushpopupsenabledstate(NPP aNPP, NPBool enabled);
static void
_poppopupsenabledstate(NPP aNPP);
static void
_pluginthreadasynccall(NPP instance, PluginThreadCallback func,
void *userData);
static NPError
_getvalueforurl(NPP npp, NPNURLVariable variable, const char *url,
char **value, uint32_t *len);
static NPError
_setvalueforurl(NPP npp, NPNURLVariable variable, const char *url,
const char *value, uint32_t len);
static NPError
_getauthenticationinfo(NPP npp, const char *protocol,
const char *host, int32_t port,
const char *scheme, const char *realm,
char **username, uint32_t *ulen,
char **password, uint32_t *plen);
static uint32_t
_scheduletimer(NPP instance, uint32_t interval, NPBool repeat,
void (*timerFunc)(NPP npp, uint32_t timerID));
static void
_unscheduletimer(NPP instance, uint32_t timerID);
static NPError
_popupcontextmenu(NPP instance, NPMenu* menu);
static NPBool
_convertpoint(NPP instance,
double sourceX, double sourceY, NPCoordinateSpace sourceSpace,
double *destX, double *destY, NPCoordinateSpace destSpace);
static void
_urlredirectresponse(NPP instance, void* notifyData, NPBool allow);
static NPError
_initasyncsurface(NPP instance, NPSize *size,
NPImageFormat format, void *initData,
NPAsyncSurface *surface);
static NPError
_finalizeasyncsurface(NPP instance, NPAsyncSurface *surface);
static void
_setcurrentasyncsurface(NPP instance, NPAsyncSurface *surface, NPRect *changed);
} /* namespace child */
} /* namespace plugins */
} /* namespace mozilla */
const NPNetscapeFuncs PluginModuleChild::sBrowserFuncs = {
sizeof(sBrowserFuncs),
(NP_VERSION_MAJOR << 8) + NP_VERSION_MINOR,
mozilla::plugins::child::_geturl,
mozilla::plugins::child::_posturl,
mozilla::plugins::child::_requestread,
mozilla::plugins::child::_newstream,
mozilla::plugins::child::_write,
mozilla::plugins::child::_destroystream,
mozilla::plugins::child::_status,
mozilla::plugins::child::_useragent,
mozilla::plugins::child::_memalloc,
mozilla::plugins::child::_memfree,
mozilla::plugins::child::_memflush,
mozilla::plugins::child::_reloadplugins,
mozilla::plugins::child::_getjavaenv,
mozilla::plugins::child::_getjavapeer,
mozilla::plugins::child::_geturlnotify,
mozilla::plugins::child::_posturlnotify,
mozilla::plugins::child::_getvalue,
mozilla::plugins::child::_setvalue,
mozilla::plugins::child::_invalidaterect,
mozilla::plugins::child::_invalidateregion,
mozilla::plugins::child::_forceredraw,
PluginModuleChild::NPN_GetStringIdentifier,
PluginModuleChild::NPN_GetStringIdentifiers,
PluginModuleChild::NPN_GetIntIdentifier,
PluginModuleChild::NPN_IdentifierIsString,
PluginModuleChild::NPN_UTF8FromIdentifier,
PluginModuleChild::NPN_IntFromIdentifier,
PluginModuleChild::NPN_CreateObject,
PluginModuleChild::NPN_RetainObject,
PluginModuleChild::NPN_ReleaseObject,
mozilla::plugins::child::_invoke,
mozilla::plugins::child::_invokedefault,
mozilla::plugins::child::_evaluate,
mozilla::plugins::child::_getproperty,
mozilla::plugins::child::_setproperty,
mozilla::plugins::child::_removeproperty,
mozilla::plugins::child::_hasproperty,
mozilla::plugins::child::_hasmethod,
mozilla::plugins::child::_releasevariantvalue,
mozilla::plugins::child::_setexception,
mozilla::plugins::child::_pushpopupsenabledstate,
mozilla::plugins::child::_poppopupsenabledstate,
mozilla::plugins::child::_enumerate,
mozilla::plugins::child::_pluginthreadasynccall,
mozilla::plugins::child::_construct,
mozilla::plugins::child::_getvalueforurl,
mozilla::plugins::child::_setvalueforurl,
mozilla::plugins::child::_getauthenticationinfo,
mozilla::plugins::child::_scheduletimer,
mozilla::plugins::child::_unscheduletimer,
mozilla::plugins::child::_popupcontextmenu,
mozilla::plugins::child::_convertpoint,
nullptr, // handleevent, unimplemented
nullptr, // unfocusinstance, unimplemented
mozilla::plugins::child::_urlredirectresponse,
mozilla::plugins::child::_initasyncsurface,
mozilla::plugins::child::_finalizeasyncsurface,
mozilla::plugins::child::_setcurrentasyncsurface,
};
PluginInstanceChild*
InstCast(NPP aNPP)
{
MOZ_ASSERT(!!(aNPP->ndata), "nil instance");
return static_cast<PluginInstanceChild*>(aNPP->ndata);
}
namespace mozilla {
namespace plugins {
namespace child {
NPError
_requestread(NPStream* aStream,
NPByteRange* aRangeList)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(NPERR_INVALID_PARAM);
BrowserStreamChild* bs =
static_cast<BrowserStreamChild*>(static_cast<AStream*>(aStream->ndata));
bs->EnsureCorrectStream(aStream);
return bs->NPN_RequestRead(aRangeList);
}
NPError
_geturlnotify(NPP aNPP,
const char* aRelativeURL,
const char* aTarget,
void* aNotifyData)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(NPERR_INVALID_PARAM);
if (!aNPP) // nullptr check for nspluginwrapper (bug 561690)
return NPERR_INVALID_INSTANCE_ERROR;
nsCString url = NullableString(aRelativeURL);
StreamNotifyChild* sn = new StreamNotifyChild(url);
NPError err;
InstCast(aNPP)->CallPStreamNotifyConstructor(
sn, url, NullableString(aTarget), false, nsCString(), false, &err);
if (NPERR_NO_ERROR == err) {
// If NPN_PostURLNotify fails, the parent will immediately send us
// a PStreamNotifyDestructor, which should not call NPP_URLNotify.
sn->SetValid(aNotifyData);
}
return err;
}
NPError
_getvalue(NPP aNPP,
NPNVariable aVariable,
void* aValue)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(NPERR_INVALID_PARAM);
switch (aVariable) {
// Copied from nsNPAPIPlugin.cpp
case NPNVToolkit:
#if defined(MOZ_WIDGET_GTK)
*static_cast<NPNToolkitType*>(aValue) = NPNVGtk2;
return NPERR_NO_ERROR;
#endif
return NPERR_GENERIC_ERROR;
case NPNVjavascriptEnabledBool:
*(NPBool*)aValue = PluginModuleChild::GetChrome()->Settings().javascriptEnabled();
return NPERR_NO_ERROR;
case NPNVasdEnabledBool:
*(NPBool*)aValue = PluginModuleChild::GetChrome()->Settings().asdEnabled();
return NPERR_NO_ERROR;
case NPNVisOfflineBool:
*(NPBool*)aValue = PluginModuleChild::GetChrome()->Settings().isOffline();
return NPERR_NO_ERROR;
case NPNVSupportsXEmbedBool:
*(NPBool*)aValue = PluginModuleChild::GetChrome()->Settings().supportsXembed();
return NPERR_NO_ERROR;
case NPNVSupportsWindowless:
*(NPBool*)aValue = PluginModuleChild::GetChrome()->Settings().supportsWindowless();
return NPERR_NO_ERROR;
#if defined(MOZ_WIDGET_GTK)
case NPNVxDisplay: {
if (aNPP) {
return InstCast(aNPP)->NPN_GetValue(aVariable, aValue);
}
else {
*(void **)aValue = xt_client_get_display();
}
return NPERR_NO_ERROR;
}
case NPNVxtAppContext:
return NPERR_GENERIC_ERROR;
#endif
default: {
if (aNPP) {
return InstCast(aNPP)->NPN_GetValue(aVariable, aValue);
}
NS_WARNING("Null NPP!");
return NPERR_INVALID_INSTANCE_ERROR;
}
}
NS_NOTREACHED("Shouldn't get here!");
return NPERR_GENERIC_ERROR;
}
NPError
_setvalue(NPP aNPP,
NPPVariable aVariable,
void* aValue)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(NPERR_INVALID_PARAM);
return InstCast(aNPP)->NPN_SetValue(aVariable, aValue);
}
NPError
_geturl(NPP aNPP,
const char* aRelativeURL,
const char* aTarget)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(NPERR_INVALID_PARAM);
NPError err;
InstCast(aNPP)->CallNPN_GetURL(NullableString(aRelativeURL),
NullableString(aTarget), &err);
return err;
}
NPError
_posturlnotify(NPP aNPP,
const char* aRelativeURL,
const char* aTarget,
uint32_t aLength,
const char* aBuffer,
NPBool aIsFile,
void* aNotifyData)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(NPERR_INVALID_PARAM);
if (!aBuffer)
return NPERR_INVALID_PARAM;
nsCString url = NullableString(aRelativeURL);
StreamNotifyChild* sn = new StreamNotifyChild(url);
NPError err;
InstCast(aNPP)->CallPStreamNotifyConstructor(
sn, url, NullableString(aTarget), true,
nsCString(aBuffer, aLength), aIsFile, &err);
if (NPERR_NO_ERROR == err) {
// If NPN_PostURLNotify fails, the parent will immediately send us
// a PStreamNotifyDestructor, which should not call NPP_URLNotify.
sn->SetValid(aNotifyData);
}
return err;
}
NPError
_posturl(NPP aNPP,
const char* aRelativeURL,
const char* aTarget,
uint32_t aLength,
const char* aBuffer,
NPBool aIsFile)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(NPERR_INVALID_PARAM);
NPError err;
// FIXME what should happen when |aBuffer| is null?
InstCast(aNPP)->CallNPN_PostURL(NullableString(aRelativeURL),
NullableString(aTarget),
nsDependentCString(aBuffer, aLength),
aIsFile, &err);
return err;
}
NPError
_newstream(NPP aNPP,
NPMIMEType aMIMEType,
const char* aWindow,
NPStream** aStream)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(NPERR_INVALID_PARAM);
return InstCast(aNPP)->NPN_NewStream(aMIMEType, aWindow, aStream);
}
int32_t
_write(NPP aNPP,
NPStream* aStream,
int32_t aLength,
void* aBuffer)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(0);
PluginStreamChild* ps =
static_cast<PluginStreamChild*>(static_cast<AStream*>(aStream->ndata));
ps->EnsureCorrectInstance(InstCast(aNPP));
ps->EnsureCorrectStream(aStream);
return ps->NPN_Write(aLength, aBuffer);
}
NPError
_destroystream(NPP aNPP,
NPStream* aStream,
NPError aReason)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(NPERR_INVALID_PARAM);
PluginInstanceChild* p = InstCast(aNPP);
AStream* s = static_cast<AStream*>(aStream->ndata);
if (s->IsBrowserStream()) {
BrowserStreamChild* bs = static_cast<BrowserStreamChild*>(s);
bs->EnsureCorrectInstance(p);
bs->NPN_DestroyStream(aReason);
}
else {
PluginStreamChild* ps = static_cast<PluginStreamChild*>(s);
ps->EnsureCorrectInstance(p);
PPluginStreamChild::Call__delete__(ps, aReason, false);
}
return NPERR_NO_ERROR;
}
void
_status(NPP aNPP,
const char* aMessage)
{
// NPN_Status is no longer supported.
}
void
_memfree(void* aPtr)
{
PLUGIN_LOG_DEBUG_FUNCTION;
free(aPtr);
}
uint32_t
_memflush(uint32_t aSize)
{
return 0;
}
void
_reloadplugins(NPBool aReloadPages)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD_VOID();
// Send the reload message to all modules. Chrome will need to reload from
// disk and content will need to request a new list of plugin tags from
// chrome.
PluginModuleChild::GetChrome()->SendNPN_ReloadPlugins(!!aReloadPages);
}
void
_invalidaterect(NPP aNPP,
NPRect* aInvalidRect)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD_VOID();
// nullptr check for nspluginwrapper (bug 548434)
if (aNPP) {
InstCast(aNPP)->InvalidateRect(aInvalidRect);
}
}
void
_invalidateregion(NPP aNPP,
NPRegion aInvalidRegion)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD_VOID();
NS_WARNING("Not yet implemented!");
}
void
_forceredraw(NPP aNPP)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD_VOID();
// We ignore calls to NPN_ForceRedraw. Such calls should
// never be necessary.
}
const char*
_useragent(NPP aNPP)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(nullptr);
return PluginModuleChild::GetChrome()->GetUserAgent();
}
void*
_memalloc(uint32_t aSize)
{
PLUGIN_LOG_DEBUG_FUNCTION;
return moz_xmalloc(aSize);
}
// Deprecated entry points for the old Java plugin.
void* /* OJI type: JRIEnv* */
_getjavaenv(void)
{
PLUGIN_LOG_DEBUG_FUNCTION;
return 0;
}
void* /* OJI type: jref */
_getjavapeer(NPP aNPP)
{
PLUGIN_LOG_DEBUG_FUNCTION;
return 0;
}
bool
_invoke(NPP aNPP,
NPObject* aNPObj,
NPIdentifier aMethod,
const NPVariant* aArgs,
uint32_t aArgCount,
NPVariant* aResult)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(false);
if (!aNPP || !aNPObj || !aNPObj->_class || !aNPObj->_class->invoke)
return false;
return aNPObj->_class->invoke(aNPObj, aMethod, aArgs, aArgCount, aResult);
}
bool
_invokedefault(NPP aNPP,
NPObject* aNPObj,
const NPVariant* aArgs,
uint32_t aArgCount,
NPVariant* aResult)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(false);
if (!aNPP || !aNPObj || !aNPObj->_class || !aNPObj->_class->invokeDefault)
return false;
return aNPObj->_class->invokeDefault(aNPObj, aArgs, aArgCount, aResult);
}
bool
_evaluate(NPP aNPP,
NPObject* aObject,
NPString* aScript,
NPVariant* aResult)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(false);
if (!(aNPP && aObject && aScript && aResult)) {
NS_ERROR("Bad arguments!");
return false;
}
PluginScriptableObjectChild* actor =
InstCast(aNPP)->GetActorForNPObject(aObject);
if (!actor) {
NS_ERROR("Failed to create actor?!");
return false;
}
#ifdef XP_WIN
if (gDelayFlashFocusReplyUntilEval) {
ReplyMessage(0);
gDelayFlashFocusReplyUntilEval = false;
}
#endif
return actor->Evaluate(aScript, aResult);
}
bool
_getproperty(NPP aNPP,
NPObject* aNPObj,
NPIdentifier aPropertyName,
NPVariant* aResult)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(false);
if (!aNPP || !aNPObj || !aNPObj->_class || !aNPObj->_class->getProperty)
return false;
return aNPObj->_class->getProperty(aNPObj, aPropertyName, aResult);
}
bool
_setproperty(NPP aNPP,
NPObject* aNPObj,
NPIdentifier aPropertyName,
const NPVariant* aValue)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(false);
if (!aNPP || !aNPObj || !aNPObj->_class || !aNPObj->_class->setProperty)
return false;
return aNPObj->_class->setProperty(aNPObj, aPropertyName, aValue);
}
bool
_removeproperty(NPP aNPP,
NPObject* aNPObj,
NPIdentifier aPropertyName)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(false);
if (!aNPP || !aNPObj || !aNPObj->_class || !aNPObj->_class->removeProperty)
return false;
return aNPObj->_class->removeProperty(aNPObj, aPropertyName);
}
bool
_hasproperty(NPP aNPP,
NPObject* aNPObj,
NPIdentifier aPropertyName)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(false);
if (!aNPP || !aNPObj || !aNPObj->_class || !aNPObj->_class->hasProperty)
return false;
return aNPObj->_class->hasProperty(aNPObj, aPropertyName);
}
bool
_hasmethod(NPP aNPP,
NPObject* aNPObj,
NPIdentifier aMethodName)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(false);
if (!aNPP || !aNPObj || !aNPObj->_class || !aNPObj->_class->hasMethod)
return false;
return aNPObj->_class->hasMethod(aNPObj, aMethodName);
}
bool
_enumerate(NPP aNPP,
NPObject* aNPObj,
NPIdentifier** aIdentifiers,
uint32_t* aCount)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(false);
if (!aNPP || !aNPObj || !aNPObj->_class)
return false;
if (!NP_CLASS_STRUCT_VERSION_HAS_ENUM(aNPObj->_class) ||
!aNPObj->_class->enumerate) {
*aIdentifiers = 0;
*aCount = 0;
return true;
}
return aNPObj->_class->enumerate(aNPObj, aIdentifiers, aCount);
}
bool
_construct(NPP aNPP,
NPObject* aNPObj,
const NPVariant* aArgs,
uint32_t aArgCount,
NPVariant* aResult)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(false);
if (!aNPP || !aNPObj || !aNPObj->_class ||
!NP_CLASS_STRUCT_VERSION_HAS_CTOR(aNPObj->_class) ||
!aNPObj->_class->construct) {
return false;
}
return aNPObj->_class->construct(aNPObj, aArgs, aArgCount, aResult);
}
void
_releasevariantvalue(NPVariant* aVariant)
{
PLUGIN_LOG_DEBUG_FUNCTION;
// Only assert plugin thread here for consistency with in-process plugins.
AssertPluginThread();
if (NPVARIANT_IS_STRING(*aVariant)) {
NPString str = NPVARIANT_TO_STRING(*aVariant);
free(const_cast<NPUTF8*>(str.UTF8Characters));
}
else if (NPVARIANT_IS_OBJECT(*aVariant)) {
NPObject* object = NPVARIANT_TO_OBJECT(*aVariant);
if (object) {
PluginModuleChild::NPN_ReleaseObject(object);
}
}
VOID_TO_NPVARIANT(*aVariant);
}
void
_setexception(NPObject* aNPObj,
const NPUTF8* aMessage)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD_VOID();
// Do nothing. We no longer support this API.
}
void
_pushpopupsenabledstate(NPP aNPP,
NPBool aEnabled)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD_VOID();
InstCast(aNPP)->CallNPN_PushPopupsEnabledState(aEnabled ? true : false);
}
void
_poppopupsenabledstate(NPP aNPP)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD_VOID();
InstCast(aNPP)->CallNPN_PopPopupsEnabledState();
}
void
_pluginthreadasynccall(NPP aNPP,
PluginThreadCallback aFunc,
void* aUserData)
{
PLUGIN_LOG_DEBUG_FUNCTION;
if (!aFunc)
return;
InstCast(aNPP)->AsyncCall(aFunc, aUserData);
}
NPError
_getvalueforurl(NPP npp, NPNURLVariable variable, const char *url,
char **value, uint32_t *len)
{
PLUGIN_LOG_DEBUG_FUNCTION;
AssertPluginThread();
if (!url)
return NPERR_INVALID_URL;
if (!npp || !value || !len)
return NPERR_INVALID_PARAM;
switch (variable) {
case NPNURLVCookie:
case NPNURLVProxy:
nsCString v;
NPError result;
InstCast(npp)->
CallNPN_GetValueForURL(variable, nsCString(url), &v, &result);
if (NPERR_NO_ERROR == result) {
*value = ToNewCString(v);
*len = v.Length();
}
return result;
}
return NPERR_INVALID_PARAM;
}
NPError
_setvalueforurl(NPP npp, NPNURLVariable variable, const char *url,
const char *value, uint32_t len)
{
PLUGIN_LOG_DEBUG_FUNCTION;
AssertPluginThread();
if (!value)
return NPERR_INVALID_PARAM;
if (!url)
return NPERR_INVALID_URL;
switch (variable) {
case NPNURLVCookie:
case NPNURLVProxy:
NPError result;
InstCast(npp)->CallNPN_SetValueForURL(variable, nsCString(url),
nsDependentCString(value, len),
&result);
return result;
}
return NPERR_INVALID_PARAM;
}
NPError
_getauthenticationinfo(NPP npp, const char *protocol,
const char *host, int32_t port,
const char *scheme, const char *realm,
char **username, uint32_t *ulen,
char **password, uint32_t *plen)
{
PLUGIN_LOG_DEBUG_FUNCTION;
AssertPluginThread();
if (!protocol || !host || !scheme || !realm || !username || !ulen ||
!password || !plen)
return NPERR_INVALID_PARAM;
nsCString u;
nsCString p;
NPError result;
InstCast(npp)->
CallNPN_GetAuthenticationInfo(nsDependentCString(protocol),
nsDependentCString(host),
port,
nsDependentCString(scheme),
nsDependentCString(realm),
&u, &p, &result);
if (NPERR_NO_ERROR == result) {
*username = ToNewCString(u);
*ulen = u.Length();
*password = ToNewCString(p);
*plen = p.Length();
}
return result;
}
uint32_t
_scheduletimer(NPP npp, uint32_t interval, NPBool repeat,
void (*timerFunc)(NPP npp, uint32_t timerID))
{
PLUGIN_LOG_DEBUG_FUNCTION;
AssertPluginThread();
return InstCast(npp)->ScheduleTimer(interval, repeat, timerFunc);
}
void
_unscheduletimer(NPP npp, uint32_t timerID)
{
PLUGIN_LOG_DEBUG_FUNCTION;
AssertPluginThread();
InstCast(npp)->UnscheduleTimer(timerID);
}
#ifdef OS_MACOSX
static void ProcessBrowserEvents(void* pluginModule) {
PluginModuleChild* pmc = static_cast<PluginModuleChild*>(pluginModule);
if (!pmc)
return;
pmc->CallProcessSomeEvents();
}
#endif
NPError
_popupcontextmenu(NPP instance, NPMenu* menu)
{
PLUGIN_LOG_DEBUG_FUNCTION;
AssertPluginThread();
#ifdef MOZ_WIDGET_COCOA
double pluginX, pluginY;
double screenX, screenY;
const NPCocoaEvent* currentEvent = InstCast(instance)->getCurrentEvent();
if (!currentEvent) {
return NPERR_GENERIC_ERROR;
}
// Ensure that the events has an x/y value.
if (currentEvent->type != NPCocoaEventMouseDown &&
currentEvent->type != NPCocoaEventMouseUp &&
currentEvent->type != NPCocoaEventMouseMoved &&
currentEvent->type != NPCocoaEventMouseEntered &&
currentEvent->type != NPCocoaEventMouseExited &&
currentEvent->type != NPCocoaEventMouseDragged) {
return NPERR_GENERIC_ERROR;
}
pluginX = currentEvent->data.mouse.pluginX;
pluginY = currentEvent->data.mouse.pluginY;
if ((pluginX < 0.0) || (pluginY < 0.0))
return NPERR_GENERIC_ERROR;
NPBool success = _convertpoint(instance,
pluginX, pluginY, NPCoordinateSpacePlugin,
&screenX, &screenY, NPCoordinateSpaceScreen);
if (success) {
return mozilla::plugins::PluginUtilsOSX::ShowCocoaContextMenu(menu,
screenX, screenY,
InstCast(instance)->Manager(),
ProcessBrowserEvents);
} else {
NS_WARNING("Convertpoint failed, could not created contextmenu.");
return NPERR_GENERIC_ERROR;
}
#else
NS_WARNING("Not supported on this platform!");
return NPERR_GENERIC_ERROR;
#endif
}
NPBool
_convertpoint(NPP instance,
double sourceX, double sourceY, NPCoordinateSpace sourceSpace,
double *destX, double *destY, NPCoordinateSpace destSpace)
{
PLUGIN_LOG_DEBUG_FUNCTION;
if (!IsPluginThread()) {
NS_WARNING("Not running on the plugin's main thread!");
return false;
}
double rDestX = 0;
bool ignoreDestX = !destX;
double rDestY = 0;
bool ignoreDestY = !destY;
bool result = false;
InstCast(instance)->CallNPN_ConvertPoint(sourceX, ignoreDestX, sourceY, ignoreDestY, sourceSpace, destSpace,
&rDestX, &rDestY, &result);
if (result) {
if (destX)
*destX = rDestX;
if (destY)
*destY = rDestY;
}
return result;
}
void
_urlredirectresponse(NPP instance, void* notifyData, NPBool allow)
{
InstCast(instance)->NPN_URLRedirectResponse(notifyData, allow);
}
NPError
_initasyncsurface(NPP instance, NPSize *size,
NPImageFormat format, void *initData,
NPAsyncSurface *surface)
{
return InstCast(instance)->NPN_InitAsyncSurface(size, format, initData, surface);
}
NPError
_finalizeasyncsurface(NPP instance, NPAsyncSurface *surface)
{
return InstCast(instance)->NPN_FinalizeAsyncSurface(surface);
}
void
_setcurrentasyncsurface(NPP instance, NPAsyncSurface *surface, NPRect *changed)
{
InstCast(instance)->NPN_SetCurrentAsyncSurface(surface, changed);
}
} /* namespace child */
} /* namespace plugins */
} /* namespace mozilla */
//-----------------------------------------------------------------------------
bool
PluginModuleChild::RecvSettingChanged(const PluginSettings& aSettings)
{
mCachedSettings = aSettings;
return true;
}
bool
PluginModuleChild::AnswerNP_GetEntryPoints(NPError* _retval)
{
PLUGIN_LOG_DEBUG_METHOD;
AssertPluginThread();
MOZ_ASSERT(mIsChrome);
#if defined(OS_LINUX) || defined(OS_BSD) || defined(OS_SOLARIS)
return true;
#elif defined(OS_WIN) || defined(OS_MACOSX)
*_retval = mGetEntryPointsFunc(&mFunctions);
return true;
#else
# error Please implement me for your platform
#endif
}
bool
PluginModuleChild::AnswerNP_Initialize(const PluginSettings& aSettings, NPError* rv)
{
*rv = DoNP_Initialize(aSettings);
return true;
}
bool
PluginModuleChild::RecvAsyncNP_Initialize(const PluginSettings& aSettings)
{
NPError error = DoNP_Initialize(aSettings);
return SendNP_InitializeResult(error);
}
NPError
PluginModuleChild::DoNP_Initialize(const PluginSettings& aSettings)
{
PLUGIN_LOG_DEBUG_METHOD;
AssertPluginThread();
MOZ_ASSERT(mIsChrome);
mCachedSettings = aSettings;
#ifdef OS_WIN
SetEventHooks();
#endif
#ifdef MOZ_X11
// Send the parent our X socket to act as a proxy reference for our X
// resources.
int xSocketFd = ConnectionNumber(DefaultXDisplay());
SendBackUpXResources(FileDescriptor(xSocketFd));
#endif
NPError result;
#if defined(OS_LINUX) || defined(OS_BSD) || defined(OS_SOLARIS)
result = mInitializeFunc(&sBrowserFuncs, &mFunctions);
#elif defined(OS_WIN) || defined(OS_MACOSX)
result = mInitializeFunc(&sBrowserFuncs);
#else
# error Please implement me for your platform
#endif
return result;
}
#if defined(XP_WIN)
// Windows 8 RTM (kernelbase's version is 6.2.9200.16384) doesn't call
// CreateFileW from CreateFileA.
// So we hook CreateFileA too to use CreateFileW hook.
static HANDLE WINAPI
CreateFileAHookFn(LPCSTR fname, DWORD access, DWORD share,
LPSECURITY_ATTRIBUTES security, DWORD creation, DWORD flags,
HANDLE ftemplate)
{
while (true) { // goto out
// Our hook is for mms.cfg into \Windows\System32\Macromed\Flash
// We don't requrie supporting too long path.
WCHAR unicodeName[MAX_PATH];
size_t len = strlen(fname);
if (len >= MAX_PATH) {
break;
}
// We call to CreateFileW for workaround of Windows 8 RTM
int newLen = MultiByteToWideChar(CP_ACP, MB_ERR_INVALID_CHARS, fname,
len, unicodeName, MAX_PATH);
if (newLen == 0 || newLen >= MAX_PATH) {
break;
}
unicodeName[newLen] = '\0';
return CreateFileW(unicodeName, access, share, security, creation, flags, ftemplate);
}
return sCreateFileAStub(fname, access, share, security, creation, flags,
ftemplate);
}
static bool
GetLocalLowTempPath(size_t aLen, LPWSTR aPath)
{
NS_NAMED_LITERAL_STRING(tempname, "\\Temp");
LPWSTR path;
if (SUCCEEDED(WinUtils::SHGetKnownFolderPath(FOLDERID_LocalAppDataLow, 0,
nullptr, &path))) {
if (wcslen(path) + tempname.Length() < aLen) {
wcscpy(aPath, path);
wcscat(aPath, tempname.get());
::CoTaskMemFree(path);
return true;
}
::CoTaskMemFree(path);
}
// XP doesn't support SHGetKnownFolderPath and LocalLow
if (!GetTempPathW(aLen, aPath)) {
return false;
}
return true;
}
HANDLE WINAPI
CreateFileWHookFn(LPCWSTR fname, DWORD access, DWORD share,
LPSECURITY_ATTRIBUTES security, DWORD creation, DWORD flags,
HANDLE ftemplate)
{
static const WCHAR kConfigFile[] = L"mms.cfg";
static const size_t kConfigLength = ArrayLength(kConfigFile) - 1;
while (true) { // goto out, in sheep's clothing
size_t len = wcslen(fname);
if (len < kConfigLength) {
break;
}
if (wcscmp(fname + len - kConfigLength, kConfigFile) != 0) {
break;
}
// This is the config file we want to rewrite
WCHAR tempPath[MAX_PATH+1];
if (GetLocalLowTempPath(MAX_PATH, tempPath) == 0) {
break;
}
WCHAR tempFile[MAX_PATH+1];
if (GetTempFileNameW(tempPath, L"fx", 0, tempFile) == 0) {
break;
}
HANDLE replacement =
sCreateFileWStub(tempFile, GENERIC_READ | GENERIC_WRITE, share,
security, TRUNCATE_EXISTING,
FILE_ATTRIBUTE_TEMPORARY |
FILE_FLAG_DELETE_ON_CLOSE,
NULL);
if (replacement == INVALID_HANDLE_VALUE) {
break;
}
HANDLE original = sCreateFileWStub(fname, access, share, security,
creation, flags, ftemplate);
if (original != INVALID_HANDLE_VALUE) {
// copy original to replacement
static const size_t kBufferSize = 1024;
char buffer[kBufferSize];
DWORD bytes;
while (ReadFile(original, buffer, kBufferSize, &bytes, NULL)) {
if (bytes == 0) {
break;
}
DWORD wbytes;
WriteFile(replacement, buffer, bytes, &wbytes, NULL);
if (bytes < kBufferSize) {
break;
}
}
CloseHandle(original);
}
static const char kSettingString[] = "\nProtectedMode=0\n";
DWORD wbytes;
WriteFile(replacement, static_cast<const void*>(kSettingString),
sizeof(kSettingString) - 1, &wbytes, NULL);
SetFilePointer(replacement, 0, NULL, FILE_BEGIN);
return replacement;
}
return sCreateFileWStub(fname, access, share, security, creation, flags,
ftemplate);
}
void
PluginModuleChild::HookProtectedMode()
{
sKernel32Intercept.Init("kernel32.dll");
sKernel32Intercept.AddHook("CreateFileW",
reinterpret_cast<intptr_t>(CreateFileWHookFn),
(void**) &sCreateFileWStub);
sKernel32Intercept.AddHook("CreateFileA",
reinterpret_cast<intptr_t>(CreateFileAHookFn),
(void**) &sCreateFileAStub);
}
BOOL WINAPI
PMCGetWindowInfoHook(HWND hWnd, PWINDOWINFO pwi)
{
if (!pwi)
return FALSE;
if (!sGetWindowInfoPtrStub) {
NS_ASSERTION(FALSE, "Something is horribly wrong in PMCGetWindowInfoHook!");
return FALSE;
}
if (!sBrowserHwnd) {
wchar_t szClass[20];
if (GetClassNameW(hWnd, szClass, ArrayLength(szClass)) &&
!wcscmp(szClass, kMozillaWindowClass)) {
sBrowserHwnd = hWnd;
}
}
// Oddity: flash does strange rect comparisons for mouse input destined for
// it's internal settings window. Post removing sub widgets for tabs, touch
// this up so they get the rect they expect.
// XXX potentially tie this to a specific major version?
BOOL result = sGetWindowInfoPtrStub(hWnd, pwi);
if (sBrowserHwnd && sBrowserHwnd == hWnd)
pwi->rcWindow = pwi->rcClient;
return result;
}
SHORT WINAPI PMCGetKeyState(int aVirtKey);
// Runnable that performs GetKeyState on the main thread so that it can be
// synchronously run on the PluginModuleParent via IPC.
// The task alerts the given semaphore when it is finished.
class GetKeyStateTask : public Runnable
{
SHORT* mKeyState;
int mVirtKey;
HANDLE mSemaphore;
public:
explicit GetKeyStateTask(int aVirtKey, HANDLE aSemaphore, SHORT* aKeyState) :
mVirtKey(aVirtKey), mSemaphore(aSemaphore), mKeyState(aKeyState)
{}
NS_IMETHOD Run() override
{
PLUGIN_LOG_DEBUG_METHOD;
AssertPluginThread();
*mKeyState = PMCGetKeyState(mVirtKey);
if (!ReleaseSemaphore(mSemaphore, 1, nullptr)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
};
// static
SHORT WINAPI
PMCGetKeyState(int aVirtKey)
{
if (!IsPluginThread()) {
// synchronously request the key state from the main thread
// Start a semaphore at 0. We Release the semaphore (bringing its count to 1)
// when the synchronous call is done.
HANDLE semaphore = CreateSemaphore(NULL, 0, 1, NULL);
if (semaphore == nullptr) {
MOZ_ASSERT(semaphore != nullptr);
return 0;
}
SHORT keyState;
RefPtr<GetKeyStateTask> task = new GetKeyStateTask(aVirtKey, semaphore, &keyState);
ProcessChild::message_loop()->PostTask(task.forget());
DWORD err = WaitForSingleObject(semaphore, INFINITE);
if (err != WAIT_FAILED) {
CloseHandle(semaphore);
return keyState;
}
PLUGIN_LOG_DEBUG(("Error while waiting for GetKeyState semaphore: %d",
GetLastError()));
MOZ_ASSERT(err != WAIT_FAILED);
CloseHandle(semaphore);
return 0;
}
PluginModuleChild* chromeInstance = PluginModuleChild::GetChrome();
if (chromeInstance) {
int16_t ret = 0;
if (chromeInstance->CallGetKeyState(aVirtKey, &ret)) {
return ret;
}
}
return sGetKeyStatePtrStub(aVirtKey);
}
#endif
PPluginInstanceChild*
PluginModuleChild::AllocPPluginInstanceChild(const nsCString& aMimeType,
const uint16_t& aMode,
const InfallibleTArray<nsCString>& aNames,
const InfallibleTArray<nsCString>& aValues)
{
PLUGIN_LOG_DEBUG_METHOD;
AssertPluginThread();
// In e10s, gChromeInstance hands out quirks to instances, but never
// allocates an instance on its own. Make sure it gets the latest copy
// of quirks once we have them. Also note, with process-per-tab, we may
// have multiple PluginModuleChilds in the same plugin process, so only
// initialize this once in gChromeInstance, which is a singleton.
GetChrome()->InitQuirksModes(aMimeType);
mQuirks = GetChrome()->mQuirks;
#ifdef XP_WIN
sUser32Intercept.Init("user32.dll");
if ((mQuirks & QUIRK_FLASH_HOOK_GETWINDOWINFO) &&
!sGetWindowInfoPtrStub) {
sUser32Intercept.AddHook("GetWindowInfo", reinterpret_cast<intptr_t>(PMCGetWindowInfoHook),
(void**) &sGetWindowInfoPtrStub);
}
if ((mQuirks & QUIRK_FLASH_HOOK_GETKEYSTATE) &&
!sGetKeyStatePtrStub) {
sUser32Intercept.AddHook("GetKeyState", reinterpret_cast<intptr_t>(PMCGetKeyState),
(void**) &sGetKeyStatePtrStub);
}
#endif
return new PluginInstanceChild(&mFunctions, aMimeType, aMode, aNames,
aValues);
}
void
PluginModuleChild::InitQuirksModes(const nsCString& aMimeType)
{
if (mQuirks != QUIRKS_NOT_INITIALIZED) {
return;
}
mQuirks = GetQuirksFromMimeTypeAndFilename(aMimeType, mPluginFilename);
}
bool
PluginModuleChild::AnswerModuleSupportsAsyncRender(bool* aResult)
{
#if defined(XP_WIN)
*aResult = gChromeInstance->mAsyncRenderSupport;
return true;
#else
NS_NOTREACHED("Shouldn't get here!");
return false;
#endif
}
bool
PluginModuleChild::RecvPPluginInstanceConstructor(PPluginInstanceChild* aActor,
const nsCString& aMimeType,
const uint16_t& aMode,
InfallibleTArray<nsCString>&& aNames,
InfallibleTArray<nsCString>&& aValues)
{
PLUGIN_LOG_DEBUG_METHOD;
AssertPluginThread();
NS_ASSERTION(aActor, "Null actor!");
return true;
}
bool
PluginModuleChild::AnswerSyncNPP_New(PPluginInstanceChild* aActor, NPError* rv)
{
PLUGIN_LOG_DEBUG_METHOD;
PluginInstanceChild* childInstance =
reinterpret_cast<PluginInstanceChild*>(aActor);
AssertPluginThread();
*rv = childInstance->DoNPP_New();
return true;
}
class AsyncNewResultSender : public ChildAsyncCall
{
public:
AsyncNewResultSender(PluginInstanceChild* aInstance, NPError aResult)
: ChildAsyncCall(aInstance, nullptr, nullptr)
, mResult(aResult)
{
}
NS_IMETHOD Run() override
{
RemoveFromAsyncList();
DebugOnly<bool> sendOk = mInstance->SendAsyncNPP_NewResult(mResult);
MOZ_ASSERT(sendOk);
return NS_OK;
}
private:
NPError mResult;
};
static void
RunAsyncNPP_New(void* aChildInstance)
{
MOZ_ASSERT(aChildInstance);
PluginInstanceChild* childInstance =
static_cast<PluginInstanceChild*>(aChildInstance);
NPError rv = childInstance->DoNPP_New();
RefPtr<AsyncNewResultSender> task =
new AsyncNewResultSender(childInstance, rv);
childInstance->PostChildAsyncCall(task.forget());
}
bool
PluginModuleChild::RecvAsyncNPP_New(PPluginInstanceChild* aActor)
{
PLUGIN_LOG_DEBUG_METHOD;
PluginInstanceChild* childInstance =
reinterpret_cast<PluginInstanceChild*>(aActor);
AssertPluginThread();
// We don't want to run NPP_New async from within nested calls
childInstance->AsyncCall(&RunAsyncNPP_New, childInstance);
return true;
}
bool
PluginModuleChild::DeallocPPluginInstanceChild(PPluginInstanceChild* aActor)
{
PLUGIN_LOG_DEBUG_METHOD;
AssertPluginThread();
delete aActor;
return true;
}
NPObject*
PluginModuleChild::NPN_CreateObject(NPP aNPP, NPClass* aClass)
{
PLUGIN_LOG_DEBUG_FUNCTION;
ENSURE_PLUGIN_THREAD(nullptr);
PluginInstanceChild* i = InstCast(aNPP);
if (i->mDeletingHash) {
NS_ERROR("Plugin used NPP after NPP_Destroy");
return nullptr;
}
NPObject* newObject;
if (aClass && aClass->allocate) {
newObject = aClass->allocate(aNPP, aClass);
}
else {
newObject = reinterpret_cast<NPObject*>(child::_memalloc(sizeof(NPObject)));
}
if (newObject) {
newObject->_class = aClass;
newObject->referenceCount = 1;
NS_LOG_ADDREF(newObject, 1, "NPObject", sizeof(NPObject));
}
PluginScriptableObjectChild::RegisterObject(newObject, i);
return newObject;
}
NPObject*
PluginModuleChild::NPN_RetainObject(NPObject* aNPObj)
{
AssertPluginThread();
#ifdef NS_BUILD_REFCNT_LOGGING
int32_t refCnt =
#endif
PR_ATOMIC_INCREMENT((int32_t*)&aNPObj->referenceCount);
NS_LOG_ADDREF(aNPObj, refCnt, "NPObject", sizeof(NPObject));
return aNPObj;
}
void
PluginModuleChild::NPN_ReleaseObject(NPObject* aNPObj)
{
AssertPluginThread();
PluginInstanceChild* instance = PluginScriptableObjectChild::GetInstanceForNPObject(aNPObj);
if (!instance) {
NS_ERROR("Releasing object not in mObjectMap?");
return;
}
DeletingObjectEntry* doe = nullptr;
if (instance->mDeletingHash) {
doe = instance->mDeletingHash->GetEntry(aNPObj);
if (!doe) {
NS_ERROR("An object for a destroyed instance isn't in the instance deletion hash");
return;
}
if (doe->mDeleted)
return;
}
int32_t refCnt = PR_ATOMIC_DECREMENT((int32_t*)&aNPObj->referenceCount);
NS_LOG_RELEASE(aNPObj, refCnt, "NPObject");
if (refCnt == 0) {
DeallocNPObject(aNPObj);
if (doe)
doe->mDeleted = true;
}
return;
}
void
PluginModuleChild::DeallocNPObject(NPObject* aNPObj)
{
if (aNPObj->_class && aNPObj->_class->deallocate) {
aNPObj->_class->deallocate(aNPObj);
} else {
child::_memfree(aNPObj);
}
PluginScriptableObjectChild* actor = PluginScriptableObjectChild::GetActorForNPObject(aNPObj);
if (actor)
actor->NPObjectDestroyed();
PluginScriptableObjectChild::UnregisterObject(aNPObj);
}
NPIdentifier
PluginModuleChild::NPN_GetStringIdentifier(const NPUTF8* aName)
{
PLUGIN_LOG_DEBUG_FUNCTION;
AssertPluginThread();
if (!aName)
return 0;
nsDependentCString name(aName);
PluginIdentifier ident(name);
PluginScriptableObjectChild::StackIdentifier stackID(ident);
stackID.MakePermanent();
return stackID.ToNPIdentifier();
}
void
PluginModuleChild::NPN_GetStringIdentifiers(const NPUTF8** aNames,
int32_t aNameCount,
NPIdentifier* aIdentifiers)
{
PLUGIN_LOG_DEBUG_FUNCTION;
AssertPluginThread();
if (!(aNames && aNameCount > 0 && aIdentifiers)) {
NS_RUNTIMEABORT("Bad input! Headed for a crash!");
}
for (int32_t index = 0; index < aNameCount; ++index) {
if (!aNames[index]) {
aIdentifiers[index] = 0;
continue;
}
nsDependentCString name(aNames[index]);
PluginIdentifier ident(name);
PluginScriptableObjectChild::StackIdentifier stackID(ident);
stackID.MakePermanent();
aIdentifiers[index] = stackID.ToNPIdentifier();
}
}
bool
PluginModuleChild::NPN_IdentifierIsString(NPIdentifier aIdentifier)
{
PLUGIN_LOG_DEBUG_FUNCTION;
PluginScriptableObjectChild::StackIdentifier stack(aIdentifier);
return stack.IsString();
}
NPIdentifier
PluginModuleChild::NPN_GetIntIdentifier(int32_t aIntId)
{
PLUGIN_LOG_DEBUG_FUNCTION;
AssertPluginThread();
PluginIdentifier ident(aIntId);
PluginScriptableObjectChild::StackIdentifier stackID(ident);
stackID.MakePermanent();
return stackID.ToNPIdentifier();
}
NPUTF8*
PluginModuleChild::NPN_UTF8FromIdentifier(NPIdentifier aIdentifier)
{
PLUGIN_LOG_DEBUG_FUNCTION;
PluginScriptableObjectChild::StackIdentifier stackID(aIdentifier);
if (stackID.IsString()) {
return ToNewCString(stackID.GetString());
}
return nullptr;
}
int32_t
PluginModuleChild::NPN_IntFromIdentifier(NPIdentifier aIdentifier)
{
PLUGIN_LOG_DEBUG_FUNCTION;
PluginScriptableObjectChild::StackIdentifier stackID(aIdentifier);
if (!stackID.IsString()) {
return stackID.GetInt();
}
return INT32_MIN;
}
#ifdef OS_WIN
void
PluginModuleChild::EnteredCall()
{
mIncallPumpingStack.AppendElement();
}
void
PluginModuleChild::ExitedCall()
{
NS_ASSERTION(mIncallPumpingStack.Length(), "mismatched entered/exited");
uint32_t len = mIncallPumpingStack.Length();
const IncallFrame& f = mIncallPumpingStack[len - 1];
if (f._spinning)
MessageLoop::current()->SetNestableTasksAllowed(f._savedNestableTasksAllowed);
mIncallPumpingStack.TruncateLength(len - 1);
}
LRESULT CALLBACK
PluginModuleChild::CallWindowProcHook(int nCode, WPARAM wParam, LPARAM lParam)
{
// Trap and reply to anything we recognize as the source of a
// potential send message deadlock.
if (nCode >= 0 &&
(InSendMessageEx(nullptr)&(ISMEX_REPLIED|ISMEX_SEND)) == ISMEX_SEND) {
CWPSTRUCT* pCwp = reinterpret_cast<CWPSTRUCT*>(lParam);
if (pCwp->message == WM_KILLFOCUS) {
// Fix for flash fullscreen window loosing focus. On single
// core systems, sync killfocus events need to be handled
// after the flash fullscreen window procedure processes this
// message, otherwise fullscreen focus will not work correctly.
wchar_t szClass[26];
if (GetClassNameW(pCwp->hwnd, szClass,
sizeof(szClass)/sizeof(char16_t)) &&
!wcscmp(szClass, kFlashFullscreenClass)) {
gDelayFlashFocusReplyUntilEval = true;
}
}
}
return CallNextHookEx(nullptr, nCode, wParam, lParam);
}
LRESULT CALLBACK
PluginModuleChild::NestedInputEventHook(int nCode, WPARAM wParam, LPARAM lParam)
{
PluginModuleChild* self = GetChrome();
uint32_t len = self->mIncallPumpingStack.Length();
if (nCode >= 0 && len && !self->mIncallPumpingStack[len - 1]._spinning) {
MessageLoop* loop = MessageLoop::current();
self->SendProcessNativeEventsInInterruptCall();
IncallFrame& f = self->mIncallPumpingStack[len - 1];
f._spinning = true;
f._savedNestableTasksAllowed = loop->NestableTasksAllowed();
loop->SetNestableTasksAllowed(true);
loop->set_os_modal_loop(true);
}
return CallNextHookEx(nullptr, nCode, wParam, lParam);
}
void
PluginModuleChild::SetEventHooks()
{
NS_ASSERTION(!mNestedEventHook,
"mNestedEventHook already setup in call to SetNestedInputEventHook?");
NS_ASSERTION(!mGlobalCallWndProcHook,
"mGlobalCallWndProcHook already setup in call to CallWindowProcHook?");
PLUGIN_LOG_DEBUG(("%s", FULLFUNCTION));
// WH_MSGFILTER event hook for detecting modal loops in the child.
mNestedEventHook = SetWindowsHookEx(WH_MSGFILTER,
NestedInputEventHook,
nullptr,
GetCurrentThreadId());
// WH_CALLWNDPROC event hook for trapping sync messages sent from
// parent that can cause deadlocks.
mGlobalCallWndProcHook = SetWindowsHookEx(WH_CALLWNDPROC,
CallWindowProcHook,
nullptr,
GetCurrentThreadId());
}
void
PluginModuleChild::ResetEventHooks()
{
PLUGIN_LOG_DEBUG(("%s", FULLFUNCTION));
if (mNestedEventHook)
UnhookWindowsHookEx(mNestedEventHook);
mNestedEventHook = nullptr;
if (mGlobalCallWndProcHook)
UnhookWindowsHookEx(mGlobalCallWndProcHook);
mGlobalCallWndProcHook = nullptr;
}
#endif
bool
PluginModuleChild::RecvProcessNativeEventsInInterruptCall()
{
PLUGIN_LOG_DEBUG(("%s", FULLFUNCTION));
#if defined(OS_WIN)
ProcessNativeEventsInInterruptCall();
return true;
#else
NS_RUNTIMEABORT(
"PluginModuleChild::RecvProcessNativeEventsInInterruptCall not implemented!");
return false;
#endif
}
#ifdef MOZ_WIDGET_COCOA
void
PluginModuleChild::ProcessNativeEvents() {
CallProcessSomeEvents();
}
#endif
NPError
PluginModuleChild::PluginRequiresAudioDeviceChanges(
PluginInstanceChild* aInstance,
NPBool aShouldRegister)
{
#ifdef XP_WIN
// Maintain a set of PluginInstanceChildren that we need to tell when the
// default audio device has changed.
NPError rv = NPERR_NO_ERROR;