added wxPATH_RMDIR_FULL/RECURSIVE wxFileName::Rmdir() flags (closes #10422)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58385 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/filename.h

@@ -87,12 +87,19 @@ enum
     wxPATH_GET_SEPARATOR = 0x0002   // terminate the path with the separator
 };
 
-// MkDir flags
+// Mkdir flags
 enum
 {
     wxPATH_MKDIR_FULL    = 0x0001   // create directories recursively
 };
 
+// Rmdir flags
+enum
+{
+    wxPATH_RMDIR_FULL       = 0x0001,  // delete with subdirectories if empty
+    wxPATH_RMDIR_RECURSIVE  = 0x0002   // delete all recursively (dangerous!)
+};
+
 #if wxUSE_LONGLONG
 // error code of wxFileName::GetSize()
 extern WXDLLIMPEXP_DATA_BASE(const wxULongLong) wxInvalidSize;
@@ -309,11 +316,12 @@ public:
 #endif // wxUSE_FFILE
 
     // directory creation and removal.
-    bool Mkdir( int perm = wxS_DIR_DEFAULT, int flags = 0);
+    bool Mkdir(int perm = wxS_DIR_DEFAULT, int flags = 0);
-    static bool Mkdir( const wxString &dir, int perm = wxS_DIR_DEFAULT, int flags = 0 );
+    static bool Mkdir(const wxString &dir, int perm = wxS_DIR_DEFAULT,
+                      int flags = 0);
 
-    bool Rmdir();
+    bool Rmdir(int flags = 0);
-    static bool Rmdir( const wxString &dir );
+    static bool Rmdir(const wxString &dir, int flags = 0);
 
     // operations on the path
 

interface/wx/filename.h

@@ -53,6 +53,24 @@ enum wxPathNormalize
     wxPATH_NORM_ALL      = 0x00ff & ~wxPATH_NORM_CASE
 };
 
+/**
+    Flags for wxFileName::Rmdir().
+ */
+enum
+{
+    /// Delete the specified directory and its subdirectories if they are empty.
+    wxPATH_RMDIR_FULL = 1,
+
+    /**
+      Delete the specified directory and all the files and subdirectories in it
+      recursively.
+
+      This flag is obviously @b dangerous and should be used with care and
+      after asking the user for confirmation.
+     */
+    wxPATH_RMDIR_RECURSIVE = 2
+};
+
 /**
     The return value of wxFileName::GetSize() in case of error.
 */
@@ -982,13 +1000,31 @@ public:
 
     /**
         Deletes the specified directory from the file system.
+
+        @param flags
+            Can contain one of wxPATH_RMDIR_FULL or wxPATH_RMDIR_RECURSIVE. By
+            default contains neither so the directory will not be removed
+            unless it is empty.
+
+        @return Returns @true if the directory was successfully deleted, @false
+                otherwise.
     */
-    bool Rmdir();
+    bool Rmdir(int flags = 0);
 
     /**
         Deletes the specified directory from the file system.
+
+        @param dir
+            The directory to delete
+        @param flags
+            Can contain one of wxPATH_RMDIR_FULL or wxPATH_RMDIR_RECURSIVE. By
+            default contains neither so the directory will not be removed
+            unless it is empty.
+
+        @return Returns @true if the directory was successfully deleted, @false
+                otherwise.
     */
-    static bool Rmdir(const wxString& dir);
+    static bool Rmdir(const wxString& dir, int flags = 0);
 
     /**
         Compares the filename using the rules of this platform.
@@ -1140,4 +1176,3 @@ public:
     */
     wxFileName& operator=(const wxString& filename);
 };
-

src/common/filename.cpp

@@ -83,6 +83,7 @@
 #include "wx/tokenzr.h"
 #include "wx/config.h"          // for wxExpandEnvVars
 #include "wx/dynlib.h"
+#include "wx/dir.h"
 
 #if defined(__WIN32__) && defined(__MINGW32__)
     #include "wx/msw/gccpriv.h"
@@ -1123,14 +1124,83 @@ bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
     return ::wxMkdir( dir, perm );
 }
 
-bool wxFileName::Rmdir()
+bool wxFileName::Rmdir(int flags)
 {
-    return wxFileName::Rmdir( GetPath() );
+    return wxFileName::Rmdir( GetPath(), flags );
 }
 
-bool wxFileName::Rmdir( const wxString &dir )
+bool wxFileName::Rmdir(const wxString& dir, int flags)
 {
-    return ::wxRmdir( dir );
+#ifdef __WXMSW__
+    if ( flags & wxPATH_RMDIR_RECURSIVE )
+    {
+        // SHFileOperation needs double null termination string
+        // but without separator at the end of the path
+        wxString path(dir);
+        if ( path.Last() == wxFILE_SEP_PATH )
+            path.RemoveLast();
+        path += _T('\0');
+
+        SHFILEOPSTRUCT fileop;
+        wxZeroMemory(fileop);
+        fileop.wFunc = FO_DELETE;
+        fileop.pFrom = path.fn_str();
+        fileop.fFlags = FOF_SILENT | FOF_NOCONFIRMATION;
+    #ifndef __WXWINCE__
+        // FOF_NOERRORUI is not defined in WinCE
+        fileop.fFlags |= FOF_NOERRORUI;
+    #endif
+
+        int ret = SHFileOperation(&fileop);
+        if ( ret != 0 )
+        {
+            // SHFileOperation may return non-Win32 error codes, so the error
+            // message can be incorrect
+            wxLogApiError(_T("SHFileOperation"), ret);
+            return false;
+        }
+
+        return true;
+    }
+    else if ( flags & wxPATH_RMDIR_FULL )
+#else // !__WXMSW__
+    if ( flags != 0 )   // wxPATH_RMDIR_FULL or wxPATH_RMDIR_RECURSIVE
+#endif // !__WXMSW__
+    {
+        wxString path(dir);
+        if ( path.Last() != wxFILE_SEP_PATH )
+            path += wxFILE_SEP_PATH;
+
+        wxDir d(path);
+
+        if ( !d.IsOpened() )
+            return false;
+
+        wxString filename;
+
+        // first delete all subdirectories
+        bool cont = d.GetFirst(&filename, "", wxDIR_DIRS | wxDIR_HIDDEN);
+        while ( cont )
+        {
+            wxFileName::Rmdir(path + filename, flags);
+            cont = d.GetNext(&filename);
+        }
+
+#ifndef __WXMSW__
+        if ( flags & wxPATH_RMDIR_RECURSIVE )
+        {
+            // delete all files too
+            cont = d.GetFirst(&filename, "", wxDIR_FILES | wxDIR_HIDDEN);
+            while ( cont )
+            {
+                ::wxRemoveFile(path + filename);
+                cont = d.GetNext(&filename);
+            }
+        }
+#endif // !__WXMSW__
+    }
+
+    return ::wxRmdir(dir);
 }
 
 // ----------------------------------------------------------------------------