UnitaryProject-25 Disk Full Errors

The disk full error text is now shorter/clearer and has a Help button with it.

src/AudacityException.cpp

@@ -15,6 +15,7 @@
 #include <wx/atomic.h>
 
 #include "widgets/AudacityMessageBox.h"
+#include "widgets/ErrorDialog.h"
 
 AudacityException::~AudacityException()
 {
@@ -40,6 +41,7 @@ MessageBoxException::MessageBoxException( const MessageBoxException& that )
 {
    caption = that.caption;
    moved = that.moved;
+   helpUrl = that.helpUrl;
    that.moved = true;
 }
 
@@ -69,12 +71,25 @@ void MessageBoxException::DelayedHandlerAction()
       // displays its message.  We assume that multiple messages have a
       // common cause such as exhaustion of disk space so that the others
       // give the user no useful added information.
+      
       if ( wxAtomicDec( sOutstandingMessages ) == 0 )
-         ::AudacityMessageBox(
-            ErrorMessage(),
-            (caption.empty() ? AudacityMessageBoxCaptionStr() : caption),
-            wxICON_ERROR
-         );
+         if (helpUrl.IsEmpty())
+         {
+            ::AudacityMessageBox(
+               ErrorMessage(),
+               (caption.empty() ? AudacityMessageBoxCaptionStr() : caption),
+               wxICON_ERROR 
+            );
+         }
+         else
+         {
+            ShowErrorDialog(
+               nullptr,
+               (caption.empty() ? AudacityMessageBoxCaptionStr() : caption),
+               ErrorMessage(),
+               helpUrl);
+         }
+
       moved = true;
    }
 }

src/AudacityException.h

@@ -68,6 +68,8 @@ protected:
 private:
    TranslatableString caption; //!< Stored caption
    mutable bool moved { false }; //!< Whether @c *this has been the source of a copy
+protected:
+   mutable wxString helpUrl{ "" };
 };
 
 //! A MessageBoxException that shows a given, unvarying string.
@@ -76,11 +78,14 @@ class SimpleMessageBoxException /* not final */ : public MessageBoxException
 public:
    explicit SimpleMessageBoxException(
       const TranslatableString &message_, //<! Message to show
-      const TranslatableString &caption = XO("Message") //<! Short caption in frame around message
+      const TranslatableString &caption = XO("Message"), //<! Short caption in frame around message
+      const wxString &helpUrl_ = "" // Optional URL for help.
    )
       : MessageBoxException{ caption }
       , message{ message_ }
-   {}
+   {
+      helpUrl = helpUrl_;
+   }
    ~SimpleMessageBoxException() override;
 
    SimpleMessageBoxException( const SimpleMessageBoxException& ) = default;

src/DBConnection.cpp

@@ -327,21 +327,18 @@ void DBConnection::CheckpointThread()
             auto name = fName.GetFullName();
             auto longname = name + "-wal";
             auto message1 = rc == SQLITE_FULL
-               ? XO("There is insufficient space in %s.\n" ).Format( path )
+               ? XO("Could not write to %s.\n" ).Format( path )
                : TranslatableString{};
             auto message = XO(
-"The database log file %s could not be cleaned up.\n"
+"Disk is full.  For tips on freeing up space, click the help button.\n"
 "%s\n"
-"Nothing has been lost, but you must not remove this file!  "
-"Copy %s with its log file to another device, open it, and close to make "
-"it complete."
-            ).Format( longname, message1, name );
+            ).Format( message1 );
 
             // Throw and catch and AudacityException, enqueuing the
             // error message box for the event loop in the main thread
             GuardedCall( [&message]{
                throw SimpleMessageBoxException{
-                  message, XO("Warning") }; } );
+                  message, XO("Warning"), "Error:_Disk_full_or_not_writable" }; } );
             
             // Stop trying to checkpoint
             giveUp = true;