diff options
Diffstat (limited to 'widget/gtk/DBusMenu.cpp')
-rw-r--r-- | widget/gtk/DBusMenu.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/widget/gtk/DBusMenu.cpp b/widget/gtk/DBusMenu.cpp new file mode 100644 index 0000000000..8672de40ef --- /dev/null +++ b/widget/gtk/DBusMenu.cpp @@ -0,0 +1,67 @@ +/* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; -*- */ +/* 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 "DBusMenu.h" +#include "prlink.h" +#include "nsThreadUtils.h" +#include "mozilla/ArrayUtils.h" + +namespace mozilla::widget { + +#define FUNC(name, type, params) \ + DBusMenuFunctions::_##name##_fn DBusMenuFunctions::s_##name; +DBUSMENU_GLIB_FUNCTIONS +DBUSMENU_GTK_FUNCTIONS +#undef FUNC + +static PRLibrary* gDbusmenuGlib = nullptr; +static PRLibrary* gDbusmenuGtk = nullptr; + +using DBusMenuFunc = void (*)(); +struct DBusMenuDynamicFunction { + const char* functionName; + DBusMenuFunc* function; +}; + +static bool sInitialized; +static bool sLibPresent; + +/* static */ bool DBusMenuFunctions::Init() { + MOZ_ASSERT(NS_IsMainThread()); + if (sInitialized) { + return sLibPresent; + } + sInitialized = true; +#define FUNC(name, type, params) \ + {#name, (DBusMenuFunc*)&DBusMenuFunctions::s_##name}, + static const DBusMenuDynamicFunction kDbusmenuGlibSymbols[] = { + DBUSMENU_GLIB_FUNCTIONS}; + static const DBusMenuDynamicFunction kDbusmenuGtkSymbols[] = { + DBUSMENU_GTK_FUNCTIONS}; + +#define LOAD_LIBRARY(symbol, name) \ + if (!g##symbol) { \ + g##symbol = PR_LoadLibrary(name); \ + if (!g##symbol) { \ + return false; \ + } \ + } \ + for (uint32_t i = 0; i < mozilla::ArrayLength(k##symbol##Symbols); ++i) { \ + *k##symbol##Symbols[i].function = \ + PR_FindFunctionSymbol(g##symbol, k##symbol##Symbols[i].functionName); \ + if (!*k##symbol##Symbols[i].function) { \ + return false; \ + } \ + } + + LOAD_LIBRARY(DbusmenuGlib, "libdbusmenu-glib.so.4") + LOAD_LIBRARY(DbusmenuGtk, "libdbusmenu-gtk3.so.4") +#undef LOAD_LIBRARY + + sLibPresent = true; + return true; +} + +} // namespace mozilla::widget |