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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2017 - ROLI Ltd.
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 5 End-User License
Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
27th April 2017).
End User License Agreement: www.juce.com/juce-5-licence
Privacy Policy: www.juce.com/juce-5-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
#pragma once
#include "jucer_LiveCodeBuilderDLL.h"
//==============================================================================
struct CompileEngineDLL : private DeletedAtShutdown
{
CompileEngineDLL()
{
tryLoadDll();
}
~CompileEngineDLL()
{
shutdown();
clearSingletonInstance();
}
bool tryLoadDll()
{
// never load the dynamic lib multiple times
if (! isLoaded())
{
auto f = findDLLFile();
if (f != File() && dll.open (f.getLinkedTarget().getFullPathName()))
{
#define INIT_LIVE_DLL_FN(name, returnType, params) name = (name##_type) dll.getFunction (#name);
LIVE_DLL_FUNCTIONS (INIT_LIVE_DLL_FN);
#undef INIT_LIVE_DLL_FN
return true;
}
return false;
}
return true;
}
void initialise (CrashCallbackFunction crashFn, QuitCallbackFunction quitFn, bool setupSignals)
{
if (isLoaded())
projucer_initialise (crashFn, quitFn, setPropertyCallback, getPropertyCallback, setupSignals);
}
void shutdown()
{
if (isLoaded())
projucer_shutdown();
}
bool isLoaded() const
{
#define CHECK_LIVE_DLL_FN(name, returnType, params) if (name == nullptr) return false;
LIVE_DLL_FUNCTIONS (CHECK_LIVE_DLL_FN);
#undef CHECK_LIVE_DLL_FN
return projucer_getVersion() == requiredVersion;
}
#define DECLARE_LIVE_DLL_FN(name, returnType, params) \
typedef returnType (*name##_type) params; \
name##_type name = nullptr;
LIVE_DLL_FUNCTIONS (DECLARE_LIVE_DLL_FN)
#undef DECLARE_LIVE_DLL_FN
static String getDLLName()
{
#if JUCE_MAC
return "JUCECompileEngine.dylib";
#elif JUCE_LINUX
return "JUCECompileEngine.so";
#elif JUCE_WINDOWS
return "JUCECompileEngine.dll";
#else
#error
return "JUCECompileEngine.so";
#endif
}
static File getVersionedUserAppSupportFolder()
{
auto userAppData = File::getSpecialLocation (File::userApplicationDataDirectory);
#if JUCE_MAC
userAppData = userAppData.getChildFile ("Application Support");
#endif
return userAppData.getChildFile ("Projucer").getChildFile (String ("CompileEngine-") + ProjectInfo::versionString);
}
JUCE_DECLARE_SINGLETON (CompileEngineDLL, false)
private:
DynamicLibrary dll;
enum { requiredVersion = 2 };
static File findDLLFile()
{
auto dllFile = File();
if (tryFindDLLFileInAppFolder (dllFile))
return dllFile;
#if JUCE_MAC
if (tryFindDLLFileInAppBundle(dllFile))
return dllFile;
#endif
if (tryFindDLLFileInAppConfigFolder (dllFile))
return dllFile;
return {};
}
#if JUCE_MAC
static bool tryFindDLLFileInAppBundle (File& outFile)
{
File currentAppFile (File::getSpecialLocation (File::currentApplicationFile));
return tryFindDLLFileInFolder (currentAppFile.getChildFile ("Contents"), outFile);
}
#endif
static bool tryFindDLLFileInAppFolder (File& outFile)
{
auto currentAppFile = File::getSpecialLocation (File::currentApplicationFile);
return tryFindDLLFileInFolder (currentAppFile.getParentDirectory(), outFile);
}
static bool tryFindDLLFileInAppConfigFolder (File& outFile)
{
auto userAppDataFolder = getVersionedUserAppSupportFolder();
return tryFindDLLFileInFolder (userAppDataFolder, outFile);
}
static bool tryFindDLLFileInFolder(File folder, File& outFile)
{
auto file = folder.getChildFile (getDLLName());
if (isDLLFile (file))
{
outFile = file;
return true;
}
return false;
}
static bool isDLLFile (const File& f)
{
return f.getFileName().equalsIgnoreCase (getDLLName()) && f.exists();
}
static void setPropertyCallback (const char* key, const char* value)
{
auto keyStr = String (key);
if (keyStr.isNotEmpty())
getGlobalProperties().setValue (key, value);
else
jassertfalse;
}
static void getPropertyCallback (const char* key, char* value, size_t size)
{
jassert (getGlobalProperties().getValue (key).getNumBytesAsUTF8() < size);
value[0] = 0;
getGlobalProperties().getValue (key).copyToUTF8 (value, size);
}
static void crashCallback (const char*) {}
static void quitCallback() {}
};
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