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

156 lines
3.2 KiB
C++

/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8; -*- */
/* vim: set sw=2 ts=8 et tw=80 : */
/* 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 "PluginMessageUtils.h"
#include "nsIRunnable.h"
#include "nsThreadUtils.h"
#include "PluginInstanceParent.h"
#include "PluginInstanceChild.h"
#include "PluginScriptableObjectParent.h"
#include "PluginScriptableObjectChild.h"
using std::string;
using mozilla::ipc::MessageChannel;
namespace {
class DeferNPObjectReleaseRunnable : public nsRunnable
{
public:
DeferNPObjectReleaseRunnable(const NPNetscapeFuncs* f, NPObject* o)
: mFuncs(f)
, mObject(o)
{
NS_ASSERTION(o, "no release null objects");
}
NS_IMETHOD Run();
private:
const NPNetscapeFuncs* mFuncs;
NPObject* mObject;
};
NS_IMETHODIMP
DeferNPObjectReleaseRunnable::Run()
{
mFuncs->releaseobject(mObject);
return NS_OK;
}
} // namespace
namespace mozilla {
namespace plugins {
NPRemoteWindow::NPRemoteWindow() :
window(0), x(0), y(0), width(0), height(0), type(NPWindowTypeDrawable)
#if defined(MOZ_X11) && defined(XP_UNIX) && !defined(XP_MACOSX)
, visualID(0)
, colormap(0)
#endif /* XP_UNIX */
#if defined(XP_MACOSX)
,contentsScaleFactor(1.0)
#endif
{
clipRect.top = 0;
clipRect.left = 0;
clipRect.bottom = 0;
clipRect.right = 0;
}
ipc::RacyInterruptPolicy
MediateRace(const MessageChannel::Message& parent,
const MessageChannel::Message& child)
{
switch (parent.type()) {
case PPluginInstance::Msg_Paint__ID:
case PPluginInstance::Msg_NPP_SetWindow__ID:
case PPluginInstance::Msg_NPP_HandleEvent_Shmem__ID:
case PPluginInstance::Msg_NPP_HandleEvent_IOSurface__ID:
// our code relies on the frame list not changing during paints and
// reflows
return ipc::RIPParentWins;
default:
return ipc::RIPChildWins;
}
}
#if defined(OS_LINUX)
static string
ReplaceAll(const string& haystack, const string& needle, const string& with)
{
string munged = haystack;
string::size_type i = 0;
while (string::npos != (i = munged.find(needle, i))) {
munged.replace(i, needle.length(), with);
i += with.length();
}
return munged;
}
#endif
string
MungePluginDsoPath(const string& path)
{
#if defined(OS_LINUX)
// https://bugzilla.mozilla.org/show_bug.cgi?id=519601
return ReplaceAll(path, "netscape", "netsc@pe");
#else
return path;
#endif
}
string
UnmungePluginDsoPath(const string& munged)
{
#if defined(OS_LINUX)
return ReplaceAll(munged, "netsc@pe", "netscape");
#else
return munged;
#endif
}
LogModule*
GetPluginLog()
{
static LazyLogModule sLog("IPCPlugins");
return sLog;
}
void
DeferNPObjectLastRelease(const NPNetscapeFuncs* f, NPObject* o)
{
if (!o)
return;
if (o->referenceCount > 1) {
f->releaseobject(o);
return;
}
NS_DispatchToCurrentThread(new DeferNPObjectReleaseRunnable(f, o));
}
void DeferNPVariantLastRelease(const NPNetscapeFuncs* f, NPVariant* v)
{
if (!NPVARIANT_IS_OBJECT(*v)) {
f->releasevariantvalue(v);
return;
}
DeferNPObjectLastRelease(f, v->value.objectValue);
VOID_TO_NPVARIANT(*v);
}
} // namespace plugins
} // namespace mozilla