src/TortoiseShell/ColumnProvider.cpp

   1 // TortoiseGit - a Windows shell extension for easy version control
   2
   3 // Copyright (C) 2003-2008,2012 - TortoiseSVN
   4 // Copyright (C) 2008-2012 - TortoiseGit
   5
   6 // This program is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU General Public License
   8 // as published by the Free Software Foundation; either version 2
   9 // of the License, or (at your option) any later version.
  10
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License
  17 // along with this program; if not, write to the Free Software Foundation,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 #include "stdafx.h"
  21 #include "ShellExt.h"
  22 #include "guids.h"
  23 #include "PreserveChdir.h"
  24 //#include "SVNProperties.h"
  25 #include "UnicodeUtils.h"
  26 #include "GitStatus.h"
  27 #include "PathUtils.h"
  28 #include "..\TGitCache\CacheInterface.h"
  29
  30
  31 const static int ColumnFlags = SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT;
  32
  33 // Defines that revision numbers occupy at most MAX_REV_STRING_LEN characters.
  34 // There are Perforce repositories out there that have several 100,000 revs.
  35 // So, don't be too restrictive by limiting this to 6 digits + 1 separator,
  36 // for instance.
  37 //
  38 // Because shorter strings will be extended to have exactly MAX_REV_STRING_LEN
  39 // characters, large numbers will produce large strings. These, in turn, will
  40 // affect column auto sizing. This setting is a reasonable compromise.
  41
  42 STDMETHODIMP CShellExt::GetColumnInfo(DWORD dwIndex, SHCOLUMNINFO *psci)
  43 {
  44         __try
  45         {
  46                 return GetColumnInfo_Wrap(dwIndex, psci);
  47         }
  48         __except(CCrashReport::Instance().SendReport(GetExceptionInformation()))
  49         {
  50         }
  51         return E_FAIL;
  52 }
  53
  54 // IColumnProvider members
  55 STDMETHODIMP CShellExt::GetColumnInfo_Wrap(DWORD dwIndex, SHCOLUMNINFO *psci)
  56 {
  57         if (psci == 0)
  58                 return E_POINTER;
  59
  60         PreserveChdir preserveChdir;
  61         if (dwIndex > 0) // TODO: keep for now to be able to hide unimplemented columns
  62                 return S_FALSE;
  63
  64         ShellCache::CacheType cachetype = g_ShellCache.GetCacheType();
  65         if (cachetype == ShellCache::none)
  66                 return S_FALSE;
  67
  68         LoadLangDll();
  69         switch (dwIndex)
  70         {
  71                 case 0: // Git Status
  72                         GetColumnInfo(dwIndex, psci, 15, IDS_COLTITLESTATUS, IDS_COLDESCSTATUS);
  73                         break;
  74                 case 1: // Git Revision
  75                         GetColumnInfo(dwIndex, psci, 40, IDS_COLTITLEREV, IDS_COLDESCREV);
  76                         break;
  77                 case 2: // Git Url
  78                         GetColumnInfo(dwIndex, psci, 30, IDS_COLTITLEURL, IDS_COLDESCURL);
  79                         break;
  80                 case 3: // Git Short Url
  81                         GetColumnInfo(dwIndex, psci, 30, IDS_COLTITLESHORTURL, IDS_COLDESCSHORTURL);
  82                         break;
  83                 case 4: // Author and Git Author
  84                         psci->scid.fmtid = FMTID_SummaryInformation;    // predefined FMTID
  85                         psci->scid.pid   = PIDSI_AUTHOR;                                // Predefined - author
  86                         psci->vt         = VT_LPSTR;                                    // We'll return the data as a string
  87                         psci->fmt        = LVCFMT_LEFT;                                 // Text will be left-aligned in the column
  88                         psci->csFlags    = SHCOLSTATE_TYPE_STR;                 // Data should be sorted as strings
  89                         psci->cChars     = 32;                                                  // Default col width in chars
  90                         MAKESTRING(IDS_COLTITLEAUTHOR);
  91                         lstrcpynW(psci->wszTitle, stringtablebuffer, MAX_COLUMN_NAME_LEN);
  92                         MAKESTRING(IDS_COLDESCAUTHOR);
  93                         lstrcpynW(psci->wszDescription, stringtablebuffer, MAX_COLUMN_DESC_LEN);
  94                         break;
  95                 default:
  96                         return S_FALSE;
  97         }
  98
  99         return S_OK;
 100 }
 101
 102 void CShellExt::GetColumnInfo(DWORD dwIndex, SHCOLUMNINFO *psci, UINT characterCount, UINT title, UINT description)
 103 {
 104                         psci->scid.fmtid = CLSID_Tortoisegit_UPTODATE;
 105                         psci->scid.pid = dwIndex;
 106                         psci->vt = VT_BSTR;
 107                         psci->fmt = LVCFMT_LEFT;
 108                         psci->cChars = characterCount;
 109                         psci->csFlags = ColumnFlags;
 110
 111                         MAKESTRING(title);
 112                         lstrcpynW(psci->wszTitle, stringtablebuffer, MAX_COLUMN_NAME_LEN);
 113                         MAKESTRING(description);
 114                         lstrcpynW(psci->wszDescription, stringtablebuffer, MAX_COLUMN_DESC_LEN);
 115 }
 116
 117 STDMETHODIMP CShellExt::GetItemData(LPCSHCOLUMNID pscid, LPCSHCOLUMNDATA pscd, VARIANT *pvarData)
 118 {
 119         __try
 120         {
 121                 return GetItemData_Wrap(pscid, pscd, pvarData);
 122         }
 123         __except(CCrashReport::Instance().SendReport(GetExceptionInformation()))
 124         {
 125         }
 126         return E_FAIL;
 127 }
 128
 129 STDMETHODIMP CShellExt::GetItemData_Wrap(LPCSHCOLUMNID pscid, LPCSHCOLUMNDATA pscd, VARIANT *pvarData)
 130 {
 131         if ((pscid == 0) || (pscd == 0))
 132                 return E_INVALIDARG;
 133         if (pvarData == 0)
 134                 return E_POINTER;
 135
 136         PreserveChdir preserveChdir;
 137         if (!g_ShellCache.IsPathAllowed((TCHAR *)pscd->wszFile))
 138         {
 139                 return S_FALSE;
 140         }
 141         LoadLangDll();
 142         ShellCache::CacheType cachetype = g_ShellCache.GetCacheType();
 143         if (pscid->fmtid == CLSID_Tortoisegit_UPTODATE)
 144         {
 145                 stdstring szInfo;
 146                 const TCHAR * path = (TCHAR *)pscd->wszFile;
 147
 148                 // reserve for the path + trailing \0
 149
 150                 TCHAR buf[MAX_STATUS_STRING_LENGTH+1];
 151                 SecureZeroMemory(buf, MAX_STATUS_STRING_LENGTH);
 152                 switch (pscid->pid)
 153                 {
 154                         case 0: // Git Status
 155                                 GetColumnStatus(path, pscd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
 156                                 GitStatus::GetStatusString(g_hResInst, filestatus, buf, _countof(buf), (WORD)CRegStdDWORD(_T("Software\\TortoiseGit\\LanguageID"), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT)));
 157                                 szInfo = buf;
 158                                 break;
 159                         case 1: // Git Revision
 160 #if 0
 161                                 GetColumnStatus(path, pscd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
 162                                 if (columnrev >= 0)
 163                                 {
 164                                         V_VT(pvarData) = VT_I4;
 165                                         V_I4(pvarData) = columnrev;
 166                                 }
 167 #endif
 168                                 return S_OK;
 169                                 break;
 170                         case 2: // Git Url
 171                                 GetColumnStatus(path, pscd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
 172                                 szInfo = itemurl;
 173                                 break;
 174                         case 3: // Git Short Url
 175                                 GetColumnStatus(path, pscd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
 176                                 szInfo = itemshorturl;
 177                                 break;
 178                         default:
 179                                 return S_FALSE;
 180                 }
 181                 const WCHAR * wsInfo = szInfo.c_str();
 182                 V_VT(pvarData) = VT_BSTR;
 183                 V_BSTR(pvarData) = SysAllocString(wsInfo);
 184                 return S_OK;
 185         }
 186         if (pscid->fmtid == FMTID_SummaryInformation)
 187         {
 188                 stdstring szInfo;
 189                 const TCHAR * path = pscd->wszFile;
 190
 191                 if (cachetype == ShellCache::none)
 192                         return S_FALSE;
 193                 switch (pscid->pid)
 194                 {
 195                 case PIDSI_AUTHOR:                      // Author and Git Author
 196                         GetColumnStatus(path, pscd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
 197                         szInfo = columnauthor;
 198                         break;
 199                 default:
 200                         return S_FALSE;
 201                 }
 202                 wide_string wsInfo = szInfo;
 203                 V_VT(pvarData) = VT_BSTR;
 204                 V_BSTR(pvarData) = SysAllocString(wsInfo.c_str());
 205                 return S_OK;
 206         }
 207
 208         return S_FALSE;
 209 }
 210
 211 STDMETHODIMP CShellExt::Initialize(LPCSHCOLUMNINIT psci)
 212 {
 213         __try
 214         {
 215                 return Initialize_Wrap(psci);
 216         }
 217         __except(CCrashReport::Instance().SendReport(GetExceptionInformation()))
 218         {
 219         }
 220         return E_FAIL;
 221 }
 222
 223 STDMETHODIMP CShellExt::Initialize_Wrap(LPCSHCOLUMNINIT psci)
 224 {
 225         if (psci == 0)
 226                 return E_INVALIDARG;
 227         // psci->wszFolder (WCHAR) holds the path to the folder to be displayed
 228         // Should check to see if its a "SVN" folder and if not return E_FAIL
 229
 230         PreserveChdir preserveChdir;
 231         if (g_ShellCache.IsColumnsEveryWhere())
 232                 return S_OK;
 233         std::wstring path = psci->wszFolder;
 234         if (!path.empty())
 235         {
 236                 if (! g_ShellCache.HasGITAdminDir(path.c_str(), TRUE))
 237                         return E_FAIL;
 238         }
 239         columnfilepath = _T("");
 240         return S_OK;
 241 }
 242
 243 void CShellExt::GetColumnStatus(const TCHAR * path, BOOL bIsDir)
 244 {
 245         PreserveChdir preserveChdir;
 246         if (_tcscmp(path, columnfilepath.c_str())==0)
 247                 return;
 248         LoadLangDll();
 249         columnfilepath = path;
 250         const FileStatusCacheEntry * status = NULL;
 251         TGITCacheResponse itemStatus;
 252         ShellCache::CacheType t = ShellCache::exe;
 253         AutoLocker lock(g_csGlobalCOMGuard);
 254         t = g_ShellCache.GetCacheType();
 255
 256         switch (t)
 257         {
 258         case ShellCache::exe:
 259                 {
 260                         SecureZeroMemory(&itemStatus, sizeof(itemStatus));
 261                         if(m_remoteCacheLink.GetStatusFromRemoteCache(CTGitPath(path), &itemStatus, true))
 262                         {
 263                                 filestatus = GitStatus::GetMoreImportant(itemStatus.m_status.text_status, itemStatus.m_status.prop_status);
 264                         }
 265                         else
 266                         {
 267                                 filestatus = git_wc_status_none;
 268                                 columnauthor.clear();
 269                                 columnrev = GIT_INVALID_REVNUM;
 270                                 itemurl.clear();
 271                                 itemshorturl.clear();
 272                                 return;
 273                         }
 274                 }
 275                 break;
 276         case ShellCache::dll:
 277         case ShellCache::dllFull:
 278                 {
 279                         status = m_CachedStatus.GetFullStatus(CTGitPath(path), bIsDir, TRUE);
 280                         filestatus = status->status;
 281                 }
 282                 break;
 283         default:
 284         case ShellCache::none:
 285                 {
 286                         if (g_ShellCache.HasGITAdminDir(path, bIsDir))
 287                                 filestatus = git_wc_status_normal;
 288                         else
 289                                 filestatus = git_wc_status_none;
 290                         columnauthor.clear();
 291                         columnrev = GIT_INVALID_REVNUM;
 292                         itemurl.clear();
 293                         itemshorturl.clear();
 294                         return;
 295                 }
 296                 break;
 297         }
 298 }