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e639d7c1e7
The caller supplied callback function is wrapped in a IShellFolderViewCB so we can use (the newer) SHCreateShellFolderView.
140 lines
3.9 KiB
C++
140 lines
3.9 KiB
C++
/*
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* PROJECT: shell32
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* LICENSE: LGPL-2.1+ (https://spdx.org/licenses/LGPL-2.1+)
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* PURPOSE: DefView utility functions
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* COPYRIGHT: Copyright 2024 Whindmar Saksit <whindsaks@proton.me>
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*/
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#include "precomp.h"
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WINE_DEFAULT_DEBUG_CHANNEL(shell);
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class CObjectWithSiteBase :
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public IObjectWithSite
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{
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public:
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IUnknown* m_pUnkSite;
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CObjectWithSiteBase() : m_pUnkSite(NULL) {}
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virtual ~CObjectWithSiteBase() { SetSite(NULL); }
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// IObjectWithSite
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STDMETHODIMP SetSite(IUnknown *pUnkSite) override
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{
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IUnknown_Set(&m_pUnkSite, pUnkSite);
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return S_OK;
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}
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STDMETHODIMP GetSite(REFIID riid, void **ppvSite) override
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{
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*ppvSite = NULL;
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return m_pUnkSite ? m_pUnkSite->QueryInterface(riid, ppvSite) : E_FAIL;
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}
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};
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// This class adapts the legacy function callback to work as an IShellFolderViewCB
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class CShellFolderViewCBWrapper :
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public CComObjectRootEx<CComMultiThreadModelNoCS>,
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public IShellFolderViewCB,
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public CObjectWithSiteBase
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{
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protected:
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HWND m_hWndMain;
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PIDLIST_ABSOLUTE m_Pidl;
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CComPtr<IShellFolder> m_psf;
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CComPtr<IShellView> m_psvOuter;
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LPFNVIEWCALLBACK m_Callback;
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FOLDERVIEWMODE m_FVM;
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LONG m_Events;
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public:
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CShellFolderViewCBWrapper() : m_hWndMain(NULL), m_Pidl(NULL) {}
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virtual ~CShellFolderViewCBWrapper()
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{
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ILFree(m_Pidl);
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}
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HRESULT WINAPI Initialize(LPCSFV psvcbi)
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{
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m_psf = psvcbi->pshf;
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m_psvOuter = psvcbi->psvOuter;
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m_Pidl = psvcbi->pidl ? ILClone(psvcbi->pidl) : NULL;
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m_Callback = psvcbi->pfnCallback;
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m_FVM = psvcbi->fvm;
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m_Events = psvcbi->lEvents;
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return S_OK;
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}
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// IShellFolderViewCB
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STDMETHODIMP MessageSFVCB(UINT uMsg, WPARAM wParam, LPARAM lParam) override
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{
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switch (uMsg)
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{
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case SFVM_HWNDMAIN:
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m_hWndMain = (HWND)lParam;
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break;
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case SFVM_DEFVIEWMODE:
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if (m_FVM)
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*(FOLDERVIEWMODE*)lParam = m_FVM;
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break;
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}
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HRESULT hr = m_Callback(m_psvOuter, m_psf, m_hWndMain, uMsg, wParam, lParam);
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if (SUCCEEDED(hr))
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return hr;
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switch (uMsg)
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{
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case SFVM_GETNOTIFY:
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*(LPITEMIDLIST*)wParam = m_Pidl;
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*(LONG*)lParam = m_Events;
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return S_OK;
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}
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return hr;
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}
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// IObjectWithSite
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STDMETHODIMP SetSite(IUnknown *pUnkSite) override
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{
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// learn.microsoft.com/en-us/windows/win32/shell/sfvm-setisfv
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HRESULT hr = CObjectWithSiteBase::SetSite(pUnkSite);
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MessageSFVCB(SFVM_SETISFV, 0, (LPARAM)pUnkSite);
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return hr;
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}
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DECLARE_NO_REGISTRY()
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DECLARE_NOT_AGGREGATABLE(CShellFolderViewCBWrapper)
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BEGIN_COM_MAP(CShellFolderViewCBWrapper)
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COM_INTERFACE_ENTRY_IID(IID_IShellFolderViewCB, IShellFolderViewCB)
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COM_INTERFACE_ENTRY_IID(IID_IObjectWithSite, IObjectWithSite)
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END_COM_MAP()
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};
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/*************************************************************************
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* SHCreateShellFolderViewEx [SHELL32.174] (Win95+)
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*/
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EXTERN_C HRESULT WINAPI
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SHCreateShellFolderViewEx(_In_ LPCSFV pcsfv, _Out_ IShellView **ppsv)
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{
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if (!ppsv)
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return E_INVALIDARG;
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*ppsv = NULL;
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TRACE("sf=%p pidl=%p cb=%p mode=0x%08x outer=%p\n",
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pcsfv->pshf, pcsfv->pidl, pcsfv->pfnCallback,
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pcsfv->fvm, pcsfv->psvOuter);
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CComPtr<IShellFolderViewCB> psfvcb;
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SFV_CREATE create = { sizeof(create), pcsfv->pshf, pcsfv->psvOuter };
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if (pcsfv->pfnCallback)
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{
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HRESULT hr = ShellObjectCreatorInit<CShellFolderViewCBWrapper>(pcsfv,
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IID_PPV_ARG(IShellFolderViewCB, &psfvcb));
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if (FAILED(hr))
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return hr;
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create.psfvcb = psfvcb;
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}
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return SHCreateShellFolderView(&create, ppsv);
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}
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