shell/source/win32/shlxthandler/columninfo/columninfo.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_shell.hxx"
  33 #include "internal/global.hxx"
  34 #include "internal/columninfo.hxx"
  35 #include "internal/fileextensions.hxx"
  36 #include "internal/metainforeader.hxx"
  37 #include "internal/utilities.hxx"
  38 #include "internal/config.hxx"
  39
  40 #include <malloc.h>
  41
  42 //----------------------------
  43 //
  44 //----------------------------
  45
  46 namespace /* private */
  47 {
  48     SHCOLUMNINFO ColumnInfoTable[] =
  49     {
  50         {{PSGUID_SUMMARYINFORMATION, PIDSI_TITLE},    VT_BSTR, LVCFMT_LEFT, 30, SHCOLSTATE_TYPE_STR, L"Title",    L"Title"},
  51         {{PSGUID_SUMMARYINFORMATION, PIDSI_AUTHOR},   VT_BSTR, LVCFMT_LEFT, 30, SHCOLSTATE_TYPE_STR, L"Author",   L"Author"},
  52         {{PSGUID_SUMMARYINFORMATION, PIDSI_SUBJECT},  VT_BSTR, LVCFMT_LEFT, 30, SHCOLSTATE_TYPE_STR, L"Subject",  L"Subject"},
  53         {{PSGUID_SUMMARYINFORMATION, PIDSI_KEYWORDS}, VT_BSTR, LVCFMT_LEFT, 30, SHCOLSTATE_TYPE_STR, L"Keywords", L"Keywords"},
  54         {{PSGUID_SUMMARYINFORMATION, PIDSI_COMMENTS}, VT_BSTR, LVCFMT_LEFT, 30, SHCOLSTATE_TYPE_STR, L"Comments", L"Comments"},
  55         {{PSGUID_SUMMARYINFORMATION, PIDSI_PAGECOUNT},VT_BSTR, LVCFMT_LEFT, 30, SHCOLSTATE_TYPE_STR, L"Pagecount", L"Pagecount"}
  56     };
  57
  58     size_t ColumnInfoTableSize = sizeof(ColumnInfoTable)/sizeof(ColumnInfoTable[0]);
  59 }
  60
  61 //----------------------------
  62 //
  63 //----------------------------
  64
  65 CColumnInfo::CColumnInfo(long RefCnt) :
  66     m_RefCnt(RefCnt)
  67 {
  68     InterlockedIncrement(&g_DllRefCnt);
  69 }
  70
  71 //----------------------------
  72 //
  73 //----------------------------
  74
  75 CColumnInfo::~CColumnInfo()
  76 {
  77     InterlockedDecrement(&g_DllRefCnt);
  78 }
  79
  80 //-----------------------------
  81 // IUnknown methods
  82 //-----------------------------
  83
  84 HRESULT STDMETHODCALLTYPE CColumnInfo::QueryInterface(REFIID riid, void __RPC_FAR *__RPC_FAR *ppvObject)
  85 {
  86     *ppvObject = 0;
  87
  88     if (IID_IUnknown == riid || IID_IColumnProvider == riid)
  89     {
  90         IUnknown* pUnk = static_cast<IColumnProvider*>(this);
  91         pUnk->AddRef();
  92         *ppvObject = pUnk;
  93         return S_OK;
  94     }
  95
  96     return E_NOINTERFACE;
  97 }
  98
  99 //----------------------------
 100 //
 101 //----------------------------
 102
 103 ULONG STDMETHODCALLTYPE CColumnInfo::AddRef(void)
 104 {
 105     return InterlockedIncrement(&m_RefCnt);
 106 }
 107
 108 //----------------------------
 109 //
 110 //----------------------------
 111
 112 ULONG STDMETHODCALLTYPE CColumnInfo::Release( void)
 113 {
 114     long refcnt = InterlockedDecrement(&m_RefCnt);
 115
 116     if (0 == m_RefCnt)
 117         delete this;
 118
 119     return refcnt;
 120 }
 121
 122 //-----------------------------
 123 // IColumnProvider
 124 //-----------------------------
 125
 126 HRESULT STDMETHODCALLTYPE CColumnInfo::Initialize(LPCSHCOLUMNINIT /*psci*/)
 127 {
 128     return S_OK;
 129 }
 130
 131 //-----------------------------
 132 // Register all columns we support
 133 //-----------------------------
 134
 135 HRESULT STDMETHODCALLTYPE CColumnInfo::GetColumnInfo(DWORD dwIndex, SHCOLUMNINFO *psci)
 136 {
 137     if (dwIndex >= ColumnInfoTableSize)
 138         return S_FALSE;
 139
 140     //  Return information on each column we support. Return S_FALSE
 141     //  to indicate that we have returned information on all our
 142     //  columns. GetColumnInfo will be called repeatedly until S_FALSE
 143     //  or an error is returned
 144     psci->scid.fmtid = ColumnInfoTable[dwIndex].scid.fmtid;
 145     psci->scid.pid   = ColumnInfoTable[dwIndex].scid.pid;
 146     ZeroMemory(psci->wszTitle, sizeof(psci->wszTitle));
 147     wcsncpy(psci->wszTitle, ColumnInfoTable[dwIndex].wszTitle, (sizeof(psci->wszTitle) - 1));
 148
 149     //wcscpy(psci->wszTitle, ColumnInfoTable[dwIndex].wszTitle);
 150
 151     return S_OK;
 152 }
 153
 154 //-----------------------------
 155 //
 156 //-----------------------------
 157
 158  HRESULT STDMETHODCALLTYPE CColumnInfo::GetItemData(LPCSHCOLUMNID pscid, LPCSHCOLUMNDATA pscd, VARIANT *pvarData)
 159 {
 160     if (IsOOFileExtension(pscd->pwszExt))
 161     {
 162         try
 163         {
 164
 165             CMetaInfoReader meta_info_accessor(WStringToString(pscd->wszFile));
 166
 167             VariantClear(pvarData);
 168
 169             if (IsEqualGUID (pscid->fmtid, FMTID_SummaryInformation) && pscid->pid == PIDSI_TITLE)
 170             {
 171                 pvarData->vt = VT_BSTR;
 172                 pvarData->bstrVal = SysAllocString(meta_info_accessor.getTagData( META_INFO_TITLE ).c_str());
 173
 174                 return S_OK;
 175             }
 176             else if (IsEqualGUID (pscid->fmtid, FMTID_SummaryInformation) && pscid->pid == PIDSI_AUTHOR)
 177             {
 178                 pvarData->vt = VT_BSTR;
 179                 pvarData->bstrVal = SysAllocString(meta_info_accessor.getTagData( META_INFO_AUTHOR).c_str());
 180
 181                 return S_OK;
 182             }
 183             else if (IsEqualGUID (pscid->fmtid, FMTID_SummaryInformation) && pscid->pid == PIDSI_SUBJECT)
 184             {
 185                 pvarData->vt = VT_BSTR;
 186                 pvarData->bstrVal = SysAllocString(meta_info_accessor.getTagData( META_INFO_SUBJECT).c_str());
 187
 188                 return S_OK;
 189             }
 190             else if (IsEqualGUID (pscid->fmtid, FMTID_SummaryInformation) && pscid->pid == PIDSI_KEYWORDS)
 191             {
 192                 pvarData->vt = VT_BSTR;
 193                 pvarData->bstrVal = SysAllocString(meta_info_accessor.getTagData( META_INFO_KEYWORDS).c_str());
 194
 195                 return S_OK;
 196             }
 197             else if (IsEqualGUID (pscid->fmtid, FMTID_SummaryInformation) && pscid->pid == PIDSI_COMMENTS)
 198             {
 199                 pvarData->vt = VT_BSTR;
 200                 pvarData->bstrVal = SysAllocString(meta_info_accessor.getTagData( META_INFO_DESCRIPTION).c_str());
 201
 202                 return S_OK;
 203             }
 204             else if (IsEqualGUID (pscid->fmtid, FMTID_SummaryInformation) && pscid->pid == PIDSI_PAGECOUNT)
 205             {
 206                 pvarData->vt = VT_BSTR;
 207                 pvarData->bstrVal = SysAllocString(meta_info_accessor.getTagAttribute( META_INFO_DOCUMENT_STATISTIC, META_INFO_PAGES).c_str());
 208
 209                 return S_OK;
 210             }
 211         }
 212         catch (const std::exception&)
 213         {
 214             return S_FALSE;
 215         }
 216     }
 217
 218     return S_FALSE;
 219 }
 220
 221 //-----------------------------
 222 //
 223 //-----------------------------
 224
 225 bool CColumnInfo::IsOOFileExtension(wchar_t* Extension) const
 226 {
 227     for (size_t i = 0; i < OOFileExtensionTableSize; i++)
 228     {
 229         if (0 == _wcsicmp(Extension, OOFileExtensionTable[i].ExtensionUnicode))
 230             return true;
 231     }
 232
 233     return false;
 234 }