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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/*
* This code is based on Broken Sword 2.5 engine
*
* Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
*
* Licensed under GNU GPL v2
*
*/
#include "sword25/kernel/common.h"
#include "sword25/kernel/kernel.h"
#include "sword25/script/script.h"
#include "sword25/script/luabindhelper.h"
#include "sword25/package/packagemanager.h"
namespace Sword25 {
static PackageManager *getPM() {
Kernel *pKernel = Kernel::getInstance();
assert(pKernel);
PackageManager *pPM = pKernel->getPackage();
assert(pPM);
return pPM;
}
static int loadPackage(lua_State *L) {
PackageManager *pPM = getPM();
lua_pushbooleancpp(L, pPM->loadPackage(luaL_checkstring(L, 1), luaL_checkstring(L, 2)));
return 1;
}
static int loadDirectoryAsPackage(lua_State *L) {
PackageManager *pPM = getPM();
lua_pushbooleancpp(L, pPM->loadDirectoryAsPackage(luaL_checkstring(L, 1), luaL_checkstring(L, 2)));
return 1;
}
static void splitSearchPath(const Common::String &path, Common::String &directory, Common::String &filter) {
// Scan backwards for a trailing slash
const char *sPath = path.c_str();
const char *lastSlash = sPath + strlen(sPath) - 1;
while ((lastSlash >= sPath) && (*lastSlash != '/')) --lastSlash;
if (lastSlash >= sPath) {
directory = "";
filter = path;
} else {
directory = Common::String(sPath, lastSlash - sPath);
filter = Common::String(lastSlash + 1);
}
}
static void doSearch(lua_State *L, const Common::String &path, uint type) {
PackageManager *pPM = getPM();
// Der Packagemanager-Service muss den Suchstring und den Pfad getrennt �bergeben bekommen.
// Um die Benutzbarkeit zu verbessern sollen Skriptprogrammierer dieses als ein Pfad �bergeben k�nnen.
// Daher muss der �bergebene Pfad am letzten Slash aufgesplittet werden.
Common::String directory;
Common::String filter;
splitSearchPath(path, directory, filter);
// Ergebnistable auf dem Lua-Stack erstellen
lua_newtable(L);
// Suche durchf�hren und die Namen aller gefundenen Dateien in die Ergebnistabelle einf�gen.
// Als Indizes werden fortlaufende Nummern verwandt.
uint resultNr = 1;
Common::ArchiveMemberList list;
int numMatches;
numMatches = pPM->doSearch(list, filter, directory, type);
if (numMatches) {
for (Common::ArchiveMemberList::iterator it = list.begin(); it != list.end(); ++it) {
lua_pushnumber(L, resultNr);
lua_pushstring(L, (*it)->getName().c_str());
lua_settable(L, -3);
resultNr++;
}
}
}
static int findFiles(lua_State *L) {
doSearch(L, luaL_checkstring(L, 1), PackageManager::FT_FILE);
return 1;
}
static int findDirectories(lua_State *L) {
doSearch(L, luaL_checkstring(L, 1), PackageManager::FT_DIRECTORY);
return 1;
}
static int getFileAsString(lua_State *L) {
PackageManager *pPM = getPM();
uint fileSize;
char *fileData = (char *)pPM->getFile(luaL_checkstring(L, 1), &fileSize);
if (fileData) {
lua_pushlstring(L, fileData, fileSize);
delete[] fileData;
return 1;
} else
return 0;
}
static int fileExists(lua_State *L) {
lua_pushbooleancpp(L, getPM()->fileExists(luaL_checkstring(L, 1)));
return 1;
}
// Marks a function that should never be used
static int dummyFuncError(lua_State *L) {
error("Dummy function invoked by LUA");
return 1;
}
static const char *PACKAGE_LIBRARY_NAME = "Package";
static const luaL_reg PACKAGE_FUNCTIONS[] = {
{"LoadPackage", loadPackage},
{"LoadDirectoryAsPackage", loadDirectoryAsPackage},
{"GetCurrentDirectory", dummyFuncError},
{"ChangeDirectory", dummyFuncError},
{"GetAbsolutePath", dummyFuncError},
{"GetFileSize", dummyFuncError},
{"GetFileType", dummyFuncError},
{"FindFiles", findFiles},
{"FindDirectories", findDirectories},
{"GetFileAsString", getFileAsString},
{"FileExists", fileExists},
{0, 0}
};
bool PackageManager::registerScriptBindings() {
Kernel *pKernel = Kernel::getInstance();
assert(pKernel);
ScriptEngine *pScript = pKernel->getScript();
assert(pScript);
lua_State *L = static_cast<lua_State *>(pScript->getScriptObject());
assert(L);
if (!LuaBindhelper::addFunctionsToLib(L, PACKAGE_LIBRARY_NAME, PACKAGE_FUNCTIONS))
return false;
return true;
}
} // End of namespace Sword25
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