134 lines
4.6 KiB
C++
134 lines
4.6 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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class WinRTWrapper : public DeletedAtShutdown
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{
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public:
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JUCE_DECLARE_SINGLETON (WinRTWrapper, true)
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class ScopedHString
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{
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public:
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ScopedHString (String str)
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{
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if (WinRTWrapper::getInstance()->isInitialised())
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WinRTWrapper::getInstance()->createHString (str.toWideCharPointer(),
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static_cast<uint32_t> (str.length()),
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&hstr);
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}
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~ScopedHString()
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{
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if (WinRTWrapper::getInstance()->isInitialised() && hstr != nullptr)
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WinRTWrapper::getInstance()->deleteHString (hstr);
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}
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HSTRING get() const noexcept
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{
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return hstr;
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}
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private:
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HSTRING hstr = nullptr;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ScopedHString)
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};
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~WinRTWrapper()
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{
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if (winRTHandle != nullptr)
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::FreeLibrary (winRTHandle);
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clearSingletonInstance();
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}
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String hStringToString (HSTRING hstr)
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{
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if (isInitialised())
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if (const wchar_t* str = getHStringRawBuffer (hstr, nullptr))
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return String (str);
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return {};
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}
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bool isInitialised() const noexcept
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{
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return initialised;
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}
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template <class ComClass>
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ComSmartPtr<ComClass> getWRLFactory (const wchar_t* runtimeClassID)
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{
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ComSmartPtr<ComClass> comPtr;
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if (isInitialised())
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{
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ScopedHString classID (runtimeClassID);
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if (classID.get() != nullptr)
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roGetActivationFactory (classID.get(), __uuidof (ComClass), (void**) comPtr.resetAndGetPointerAddress());
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}
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return comPtr;
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}
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private:
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WinRTWrapper()
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{
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winRTHandle = ::LoadLibraryA ("api-ms-win-core-winrt-l1-1-0");
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if (winRTHandle == nullptr)
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return;
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roInitialize = (RoInitializeFuncPtr) ::GetProcAddress (winRTHandle, "RoInitialize");
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createHString = (WindowsCreateStringFuncPtr) ::GetProcAddress (winRTHandle, "WindowsCreateString");
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deleteHString = (WindowsDeleteStringFuncPtr) ::GetProcAddress (winRTHandle, "WindowsDeleteString");
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getHStringRawBuffer = (WindowsGetStringRawBufferFuncPtr) ::GetProcAddress (winRTHandle, "WindowsGetStringRawBuffer");
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roGetActivationFactory = (RoGetActivationFactoryFuncPtr) ::GetProcAddress (winRTHandle, "RoGetActivationFactory");
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if (roInitialize == nullptr || createHString == nullptr || deleteHString == nullptr
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|| getHStringRawBuffer == nullptr || roGetActivationFactory == nullptr)
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return;
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HRESULT status = roInitialize (1);
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initialised = ! (status != S_OK && status != S_FALSE && status != 0x80010106L);
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}
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HMODULE winRTHandle = nullptr;
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bool initialised = false;
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typedef HRESULT (WINAPI* RoInitializeFuncPtr) (int);
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typedef HRESULT (WINAPI* WindowsCreateStringFuncPtr) (LPCWSTR, UINT32, HSTRING*);
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typedef HRESULT (WINAPI* WindowsDeleteStringFuncPtr) (HSTRING);
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typedef PCWSTR (WINAPI* WindowsGetStringRawBufferFuncPtr) (HSTRING, UINT32*);
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typedef HRESULT (WINAPI* RoGetActivationFactoryFuncPtr) (HSTRING, REFIID, void**);
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RoInitializeFuncPtr roInitialize = nullptr;
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WindowsCreateStringFuncPtr createHString = nullptr;
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WindowsDeleteStringFuncPtr deleteHString = nullptr;
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WindowsGetStringRawBufferFuncPtr getHStringRawBuffer = nullptr;
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RoGetActivationFactoryFuncPtr roGetActivationFactory = nullptr;
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};
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} // namespace juce
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