Defaulting of file paths to Documents is defined in just one place

src/FileNames.cpp

@@ -30,6 +30,7 @@ used throughout Audacity into this one place.
 #include "FileNames.h"
 #include "Internat.h"
 #include "PlatformCompatibility.h"
+#include "wxFileNameWrapper.h"
 
 #if defined(__WXMAC__) || defined(__WXGTK__)
 #include <dlfcn.h>
@@ -315,3 +316,23 @@ wxString FileNames::PathFromAddr(void *addr)
 
     return name.GetFullPath();
 }
+
+wxFileNameWrapper FileNames::DefaultToDocumentsFolder
+(const wxString &preference)
+{
+   wxFileNameWrapper result;
+   result.AssignHomeDir();
+
+#ifdef __WIN32__
+   result.SetPath(gPrefs->Read(
+      preference, result.GetPath(wxPATH_GET_VOLUME) + "\\Documents\\Audacity"));
+   // The path might not exist.
+   // There is no error if the path could not be created.  That's OK.
+   // The dialog that Audacity offers will allow the user to select a valid directory.
+   result.Mkdir(0755, wxPATH_MKDIR_FULL);
+#else
+   result.SetPath(gPrefs->Read( preference, result.GetPath() + "/Documents"));
+#endif
+
+   return result;
+}

src/FileNames.h

@@ -15,6 +15,7 @@
 #include "Audacity.h"
 
 class wxFileName;
+class wxFileNameWrapper;
 class wxArrayString;
 
 // Uh, this is really a namespace rather than a class,
@@ -65,6 +66,9 @@ public:
    // Obtain name of loaded module that contains address
    static wxString PathFromAddr(void *addr);
 
+   static wxFileNameWrapper DefaultToDocumentsFolder
+      (const wxString &preference);
+
 private:
    // Private constructors: No one is ever going to instantiate it.
    //

src/Project.cpp

@@ -4317,16 +4317,7 @@ bool AudacityProject::SaveAs(bool bWantSaveCompressed /*= false*/)
    // Bug 1304: Set a default file path if none was given.  For Save/SaveAs
    if( filename.GetFullPath().IsEmpty() ){
       bHasPath = false;
-      filename.AssignHomeDir();
-#ifdef __WIN32__
-      filename.SetPath(gPrefs->Read( wxT("/SaveAs/Path"), filename.GetPath() + "\\Documents\\Audacity"));
-      // The path might not exist.
-      // There is no error if the path could not be created.  That's OK.
-      // The dialog that Audacity offers will allow the user to select a valid directory.
-      filename.Mkdir(0755, wxPATH_MKDIR_FULL);
-#else
-      filename.SetPath(gPrefs->Read( wxT("/SaveAs/Path"), filename.GetPath() + "/Documents"));
-#endif
+      filename = FileNames::DefaultToDocumentsFolder(wxT("/SaveAs/Path"));
    }
 
    wxString sDialogTitle;

src/export/Export.cpp

@@ -69,6 +69,7 @@
 #include "../widgets/Warning.h"
 #include "../AColor.h"
 #include "../Dependencies.h"
+#include "../FileNames.h"
 
 //----------------------------------------------------------------------------
 // ExportPlugin
@@ -524,18 +525,7 @@ bool Exporter::GetFilename()
    wxString defext = mPlugins[mFormat]->GetExtension(mSubFormat).Lower();
 
 //Bug 1304: Set a default path if none was given.  For Export.
-#ifdef __WIN32__
-   wxFileName tmpFile;
-   tmpFile.AssignHomeDir();
-   wxString tmpDirLoc = tmpFile.GetPath(wxPATH_GET_VOLUME);
-   mFilename.SetPath(gPrefs->Read(wxT("/Export/Path"), tmpDirLoc + "\\Documents\\Audacity"));
-   // The path might not exist.
-   // There is no error if the path could not be created.  That's OK.
-   // The dialog that Audacity offers will allow the user to select a valid directory.
-   mFilename.Mkdir(0755, wxPATH_MKDIR_FULL);
-#else
-   mFilename.SetPath(gPrefs->Read(wxT("/Export/Path"), wxT("~/Documents")));
-#endif
+   mFilename = FileNames::DefaultToDocumentsFolder(wxT("/Export/Path"));
    mFilename.SetName(mProject->GetName());
    if (mFilename.GetName().empty())
       mFilename.SetName(_("untitled"));

src/export/ExportMultiple.cpp

@@ -241,13 +241,7 @@ void ExportMultiple::PopulateOrExchange(ShuttleGui& S)
 
 
    // Bug 1304: Set the default file path.  It's used if none stored in config.
-   wxFileName filename("foo");
-   filename.AssignHomeDir();
-#ifdef __WIN32__
-   filename.SetPath(filename.GetPath() + "\\Documents\\Audacity");
-#else
-   filename.SetPath(filename.GetPath() + "/Documents");
-#endif
+   auto filename = FileNames::DefaultToDocumentsFolder(wxT("/Export/Path"));
    wxString DefaultPath = filename.GetPath();
 
    if (mPluginIndex == -1)
@@ -268,7 +262,7 @@ void ExportMultiple::PopulateOrExchange(ShuttleGui& S)
             mDir = S.Id(DirID)
                .TieTextBox(_("Folder:"),
                            wxT("/Export/MultiplePath"),
-                           gPrefs->Read(wxT("/Export/Path"), DefaultPath ),
+                           DefaultPath,
                            64);
             S.Id(ChooseID).AddButton(_("Choose..."));
             S.Id(CreateID).AddButton(_("Create"));