Try standard XDG location for documents directory

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@53093 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/stdpbase.cpp

@@ -34,6 +34,11 @@
 #include "wx/filename.h"
 #include "wx/stdpaths.h"
 
+#if defined(__UNIX__) && !defined(__WXMAC__)
+#include "wx/log.h"
+#include "wx/textfile.h"
+#endif
+
 // ----------------------------------------------------------------------------
 // module globals
 // ----------------------------------------------------------------------------
@@ -96,6 +101,43 @@ wxString wxStandardPathsBase::GetUserLocalDataDir() const
 
 wxString wxStandardPathsBase::GetDocumentsDir() const
 {
+#if defined(__UNIX__) && !defined(__WXMAC__)
+    {
+        wxLogNull logNull;
+        wxString homeDir = wxFileName::GetHomeDir();
+        wxString configPath;
+        if (wxGetenv(wxT("XDG_CONFIG_HOME")))
+            configPath = wxGetenv(wxT("XDG_CONFIG_HOME"));
+        else
+            configPath = homeDir + wxT("/.config");
+        wxString dirsFile = configPath + wxT("/user-dirs.dirs");
+        if (wxFileExists(dirsFile))
+        {
+            wxTextFile textFile;
+            if (textFile.Open(dirsFile))
+            {
+                size_t i;
+                for (i = 0; i < textFile.GetLineCount(); i++)
+                {
+                    wxString line(textFile[i]);
+                    int pos = line.Find(wxT("XDG_DOCUMENTS_DIR"));
+                    if (pos != wxNOT_FOUND)
+                    {
+                        wxString value = line.AfterFirst(wxT('='));
+                        value.Replace(wxT("$HOME"), homeDir);
+                        value.Trim(true);
+                        value.Trim(false);
+                        if (!value.IsEmpty() && wxDirExists(value))
+                            return value;
+                        else
+                            break;
+                    }
+                }
+            }
+        }
+    }
+#endif
+
     return wxFileName::GetHomeDir();
 }