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/* -*- 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"
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 < std::size(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
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