354 lines
10 KiB
C++
354 lines
10 KiB
C++
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#include "general.h"
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#include "folder.h"
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#include "utils.h"
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#include <mluisupp.h>
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#define CPP_FUNCTIONS
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#include <crtfree.h>
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// string displayed to represent missing data
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TCHAR g_szUnknownData[64];
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int CompareVersion(LPCTSTR lpszVersion1, LPCTSTR lpszVersion2);
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///////////////////////////////////////////////////////////////////////////////
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// IShellFolder methods
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CControlFolder::CControlFolder()
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{
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DebugMsg(DM_TRACE,TEXT("cf - CControlFolder() called."));
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m_cRef = 1;
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DllAddRef();
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// initialize g_szUnknownData, a string used to represent missing data
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if (g_szUnknownData[0] == 0)
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MLLoadString(IDS_UNKNOWNDATA, g_szUnknownData, ARRAYSIZE(g_szUnknownData));
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}
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CControlFolder::~CControlFolder()
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{
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Assert(m_cRef == 0); // should always have zero
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DebugMsg(DM_TRACE, TEXT("cf - ~CControlFolder() called."));
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if (m_pidl)
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ILFree(m_pidl);
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DllRelease();
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}
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STDAPI ControlFolder_CreateInstance(IUnknown *punkOuter, REFIID riid, void **ppvOut)
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{
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*ppvOut = NULL; // null the out param
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if (punkOuter)
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return CLASS_E_NOAGGREGATION;
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CControlFolder *pCFolder = new CControlFolder;
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if (!pCFolder)
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return E_OUTOFMEMORY;
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HRESULT hr = pCFolder->QueryInterface(riid, ppvOut);
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pCFolder->Release();
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return hr;
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}
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HRESULT CControlFolder::QueryInterface(REFIID iid, void **ppv)
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{
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DebugMsg(DM_TRACE, TEXT("cf - QueryInterface() called."));
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if ((iid == IID_IUnknown) || (iid == IID_IShellFolder))
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{
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*ppv = (void *)(IShellFolder*)this;
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}
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else if ((iid == IID_IPersistFolder) || (iid == IID_IPersist))
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{
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*ppv = (void *)(IPersistFolder*)this;
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}
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else if (iid == IID_IPersistFolder2)
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{
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*ppv = (void *)(IPersistFolder2*)this;
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}
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else if (iid == IID_IContextMenu)
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{
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*ppv = (void *)(IContextMenu*)this;
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}
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else if (iid == IID_IShellView)
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{
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// this is a total hack... return our view object from this folder
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//
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// the desktop.ini file for "Temporary Internet Files" has UICLSID={guid of this object}
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// this lets us implment only ths IShellView for this folder, leaving the IShellFolder
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// to the default file system. this enables operations on the pidls that are stored in
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// this folder that would otherwise faile since our IShellFolder is not as complete
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// as the default (this is the same thing the font folder does).
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//
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// to support this with defview we would either have to do a complete wrapper object
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// for the view implemenation, or add this hack that hands out the view object, this
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// assumes we know the order of calls that the shell makes to create this object
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// and get the IShellView implementation
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//
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return ControlFolderView_CreateInstance(this, m_pidl, ppv);
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}
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else
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{
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*ppv = NULL; // null the out param
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return E_NOINTERFACE;
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}
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AddRef();
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return S_OK;
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}
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ULONG CControlFolder::AddRef()
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{
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return ++m_cRef;
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}
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ULONG CControlFolder::Release()
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{
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if (--m_cRef)
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return m_cRef;
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delete this;
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return 0;
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}
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HRESULT CControlFolder::ParseDisplayName(
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HWND hwndOwner,
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LPBC pbcReserved,
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LPOLESTR lpszDisplayName,
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ULONG *pchEaten,
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LPITEMIDLIST *ppidl,
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ULONG *pdwAttributes)
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{
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DebugMsg(DM_TRACE, TEXT("cf - sf - ParseDisplayName() called."));
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*ppidl = NULL; // null the out param
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return E_FAIL;
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}
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HRESULT CControlFolder::EnumObjects(
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HWND hwndOwner,
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DWORD grfFlags,
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LPENUMIDLIST *ppenumIDList)
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{
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DebugMsg(DM_TRACE, TEXT("cf - sf - EnumObjects() called."));
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// Cannot filter on grfFlags yet - Corel Gallery expects to receive
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// an empty enumerator.
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return CControlFolderEnum_CreateInstance(m_pidl, grfFlags, ppenumIDList);
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}
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HRESULT CControlFolder::BindToObject(
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LPCITEMIDLIST pidl,
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LPBC pbcReserved,
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REFIID riid,
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void **ppvOut)
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{
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DebugMsg(DM_TRACE, TEXT("cf - sf - BindToObject() called."));
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*ppvOut = NULL; // null the out param
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return E_FAIL;
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}
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HRESULT CControlFolder::BindToStorage(
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LPCITEMIDLIST pidl,
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LPBC pbcReserved,
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REFIID riid,
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void **ppv)
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{
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DebugMsg(DM_TRACE, TEXT("cf - sf - BindToStorage() called."));
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*ppv = NULL; // null the out param
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return E_NOTIMPL;
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}
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HRESULT CControlFolder::CompareIDs(
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LPARAM lParam,
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LPCITEMIDLIST pidl1,
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LPCITEMIDLIST pidl2)
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{
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DebugMsg(DM_TRACE, TEXT("cf - sf - CompareIDs() called."));
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int iRet;
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LPCONTROLPIDL pcpidl1 = (LPCONTROLPIDL)pidl1;
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LPCONTROLPIDL pcpidl2 = (LPCONTROLPIDL)pidl2;
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LPCSTR lpszStr[2] = {NULL, NULL};
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if (pcpidl1 == NULL || pcpidl2 == NULL)
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return E_INVALIDARG;
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switch (lParam) {
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case SI_CONTROL:
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iRet = lstrcmpi(
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GetStringInfo(pcpidl1, SI_CONTROL),
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GetStringInfo(pcpidl2, SI_CONTROL));
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break;
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case SI_VERSION:
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lpszStr[0] = GetStringInfo(pcpidl1, SI_VERSION);
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lpszStr[1] = GetStringInfo(pcpidl2, SI_VERSION);
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if (lstrcmp(lpszStr[0], g_szUnknownData) == 0)
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iRet = -1;
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else if (lstrcmp(lpszStr[1], g_szUnknownData) == 0)
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iRet = 1;
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else
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iRet = CompareVersion(lpszStr[0], lpszStr[1]);
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break;
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case SI_CREATION:
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case SI_LASTACCESS:
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{
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FILETIME time[2];
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GetTimeInfo(pcpidl1, (int)lParam, &(time[0]));
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GetTimeInfo(pcpidl2, (int)lParam, &(time[1]));
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iRet = CompareFileTime(&(time[0]), &(time[1]));
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}
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break;
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case SI_STATUS:
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iRet = GetStatus(pcpidl1) - GetStatus(pcpidl2);
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break;
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case SI_TOTALSIZE:
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{
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DWORD dwSize1 = GetSizeSaved((LPCONTROLPIDL)pidl1);
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DWORD dwSize2 = GetSizeSaved((LPCONTROLPIDL)pidl2);
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iRet = (dwSize1 == dwSize2 ? 0 : (dwSize1 > dwSize2 ? 1 : -1));
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}
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break;
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default:
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iRet = -1;
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}
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return ResultFromShort((SHORT)iRet);
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}
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HRESULT CControlFolder::CreateViewObject(
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HWND hwndOwner,
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REFIID riid,
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void **ppvOut)
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{
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HRESULT hres;
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DebugMsg(DM_TRACE, TEXT("cf - sf - CreateViewObject() called."));
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if (riid == IID_IShellView)
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{
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hres = ControlFolderView_CreateInstance(this, m_pidl, ppvOut);
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}
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else if (riid == IID_IContextMenu)
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{
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hres = ControlFolder_CreateInstance(NULL, riid, ppvOut);
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}
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else
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{
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*ppvOut = NULL; // null the out param
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hres = E_NOINTERFACE;
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}
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return hres;
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}
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HRESULT CControlFolder::GetAttributesOf(UINT cidl, LPCITEMIDLIST *apidl, ULONG *prgfInOut)
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{
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// Should we initialize this for each item in here? In other words,
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// if cidl > 1, then we should initialize each entry in the prgInOut array
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Assert(cidl == 1);
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*prgfInOut = SFGAO_CANCOPY | SFGAO_HASPROPSHEET | SFGAO_CANMOVE | SFGAO_CANDELETE;
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return NOERROR;
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}
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HRESULT CControlFolder::GetUIObjectOf(
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HWND hwndOwner,
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UINT cidl,
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LPCITEMIDLIST *apidl,
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REFIID riid,
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UINT *prgfInOut,
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void **ppvOut)
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{
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HRESULT hres;
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if ((riid == IID_IDataObject) ||
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(riid == IID_IExtractIcon) ||
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(riid == IID_IContextMenu))
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{
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hres = CControlItem_CreateInstance(this, cidl, apidl, riid, ppvOut);
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}
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else
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{
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*ppvOut = NULL; // null the out param
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hres = E_FAIL;
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}
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return hres;
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}
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HRESULT CControlFolder::GetDisplayNameOf(
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LPCITEMIDLIST pidl,
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DWORD uFlags,
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LPSTRRET lpName)
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{
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DebugMsg(DM_TRACE, TEXT("cf - sf - GetDisplayNameOf() called."));
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if (pidl)
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{
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lpName->uType = STRRET_CSTR;
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// for the history, we'll use the title if we have one, otherwise we'll use
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// the url filename.
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if (uFlags & SHGDN_FORPARSING)
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lstrcpyn(
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lpName->cStr,
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GetStringInfo((LPCONTROLPIDL)pidl, SI_LOCATION),
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ARRAYSIZE(lpName->cStr));
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else
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lstrcpyn(
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lpName->cStr,
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GetStringInfo((LPCONTROLPIDL)pidl, SI_CONTROL),
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ARRAYSIZE(lpName->cStr));
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return NOERROR;
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}
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else
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{
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return E_INVALIDARG;
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}
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}
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HRESULT CControlFolder::SetNameOf(
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HWND hwndOwner,
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LPCITEMIDLIST pidl,
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LPCOLESTR lpszName,
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DWORD uFlags,
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LPITEMIDLIST *ppidlOut)
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{
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DebugMsg(DM_TRACE, TEXT("cf - sf - SetNameOf() called."));
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*ppidlOut = NULL; // null the out param
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return E_FAIL;
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}
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///////////////////////////////////////////////////////////////////////////////
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// Helper functions
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int CompareVersion(LPCTSTR lpszVersion1, LPCTSTR lpszVersion2)
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{
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LPCTSTR pszVerNum[2] = {lpszVersion1, lpszVersion2};
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int nVerNum[2];
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int nResult = 0;
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while (nResult == 0 && *(pszVerNum[0]) != '\0' && *(pszVerNum[1]) != '\0')
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{
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nVerNum[0] = StrToInt(pszVerNum[0]++);
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nVerNum[1] = StrToInt(pszVerNum[1]++);
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nResult = ((nVerNum[0] < nVerNum[1]) ?
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(-1) :
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(nVerNum[0] > nVerNum[1] ? 1 : 0));
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}
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return nResult;
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}
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