1 files changed, 141 insertions, 0 deletions
diff --git a/dom/plugins/ipc/PluginMessageUtils.cpp b/dom/plugins/ipc/PluginMessageUtils.cpp
new file mode 100644
index 0000000000..4d639b6f39
--- /dev/null
+++ b/dom/plugins/ipc/PluginMessageUtils.cpp
@@ -0,0 +1,141 @@
+/* -*- 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 "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 mozilla::Runnable {
+ public:
+  DeferNPObjectReleaseRunnable(const NPNetscapeFuncs* f, NPObject* o)
+      : Runnable("DeferNPObjectReleaseRunnable"), mFuncs(f), mObject(o) {
+    NS_ASSERTION(o, "no release null objects");
+  }
+
+  NS_IMETHOD Run() override;
+
+ private:
+  const NPNetscapeFuncs* mFuncs;
+  NPObject* mObject;
+};
+
+NS_IMETHODIMP
+DeferNPObjectReleaseRunnable::Run() {
+  mFuncs->releaseobject(mObject);
+  return NS_OK;
+}
+
+}  // namespace
+
+namespace mozilla::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::MessageInfo& parent,
+                                     const MessageChannel::MessageInfo& 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) || defined(OS_SOLARIS)
+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) || defined(OS_SOLARIS)
+  // 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) || defined(OS_SOLARIS)
+  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 mozilla::plugins