Add new error dialog for unwritable directory.

src/CMakeLists.txt

@@ -965,6 +965,8 @@ list( APPEND SOURCES
          widgets/ErrorReportDialog.cpp
          widgets/ErrorReportDialog.h
       >
+      widgets/UnwritableLocationErrorDialog.cpp
+      widgets/UnwritableLocationErrorDialog.h
       widgets/Warning.cpp
       widgets/Warning.h
       widgets/WindowAccessible.cpp

src/ProjectFileManager.cpp

@@ -43,9 +43,12 @@ Paul Licameli split from AudacityProject.cpp
 #include "widgets/AudacityMessageBox.h"
 #include "widgets/ErrorDialog.h"
 #include "widgets/FileHistory.h"
+#include "widgets/UnwritableLocationErrorDialog.h"
 #include "widgets/Warning.h"
 #include "xml/XMLFileReader.h"
 
+#include "HelpText.h"
+
 static const AudacityProject::AttachedObjects::RegisteredFactory sFileManagerKey{
    []( AudacityProject &parent ){
       auto result = std::make_shared< ProjectFileManager >( parent );
@@ -770,13 +773,10 @@ bool ProjectFileManager::OpenNewProject()
    bool bOK = OpenProject();
    if( !bOK )
    {
-      ShowExceptionDialog(
-         nullptr,
-         XO("Can't open new empty project"),
-         XO("Error opening a new empty project"), 
-         "FAQ:Errors_opening_a_new_empty_project",
-         true, 
-         projectFileIO.GetLastLog());
+       auto tmpdir = wxFileName(TempDirectory::UnsavedProjectFileName()).GetPath();
+
+       UnwritableLocationErrorDialog dlg(nullptr, tmpdir);
+       dlg.ShowModal();
    }
    return bOK;
 }

src/widgets/UnwritableLocationErrorDialog.cpp

@@ -0,0 +1,102 @@
+/**********************************************************************
+
+  Audacity: A Digital Audio Editor
+
+  UnwritableLocationError.h
+
+  Dmitry Vedenko
+
+**********************************************************************/
+
+#include "UnwritableLocationErrorDialog.h"
+
+#include "HelpSystem.h"
+#include "ShuttleGui.h"
+
+#include "prefs/PrefsDialog.h"
+#include "ui/AccessibleLinksFormatter.h"
+
+BEGIN_EVENT_TABLE(UnwritableLocationErrorDialog, wxDialogWrapper)
+    EVT_BUTTON(wxID_OK, UnwritableLocationErrorDialog::OnOk)
+    EVT_BUTTON(wxID_HELP, UnwritableLocationErrorDialog::OnError)
+END_EVENT_TABLE()
+
+UnwritableLocationErrorDialog::UnwritableLocationErrorDialog(wxWindow* parent, const wxString& path)
+    : wxDialogWrapper(
+         parent, -1, XO("Error"), wxDefaultPosition, wxDefaultSize, wxCAPTION | wxCLOSE_BOX)
+{
+   ShuttleGui S(this, eIsCreating);
+
+   S.SetBorder(8);
+
+   S.StartVerticalLay();
+   {
+      S.AddSpace(0, 12);
+
+      S.StartHorizontalLay();
+      {
+         S.AddSpace(12, 0);
+
+         S.StartVerticalLay();
+         {
+            S.AddFixedText(
+               /* i18n-hint: %s is replaced with a directory path. */
+               XO("Unable to write files to directory: %s.").Format(path),
+               false, 500);
+
+            S.AddFixedText(
+               /* i18n-hint: This message describes the error in the Error dialog. */
+               XO("Please check that the directory exists, has the necessary permissions, and the drive isn't full."),
+               false, 0);
+
+            S.AddSpace(0, 8);
+
+            AccessibleLinksFormatter preferencesMessage(
+               /* i18n-hint: %s is replaced with 'Preferences > Directories'. */
+               XO("You can change the directory in %s."));
+
+            preferencesMessage.FormatLink(
+               /* i18n-hint: Hyperlink title that opens Preferences dialog on Directories page. */
+               wxT("%s"), XO("Preferences > Directories"), [parent, this]() {
+                  EndModal(wxID_OK);
+
+                  GlobalPrefsDialog dialog(parent, nullptr);
+
+                  dialog.SelectPageByName(XO("Directories").Translation());
+                  dialog.ShowModal();
+               });
+
+            
+            preferencesMessage.Populate(S);
+         }
+         S.EndVerticalLay();
+
+         S.AddSpace(12, 0);
+      }
+      S.EndHorizontalLay();
+
+      S.AddSpace(0, 12);
+
+      S.AddStandardButtons(eHelpButton | eOkButton);
+   }
+   S.EndVerticalLay();
+
+   Layout();
+   Fit();
+   Center();
+}
+
+UnwritableLocationErrorDialog::~UnwritableLocationErrorDialog()
+{
+   
+}
+
+void UnwritableLocationErrorDialog::OnOk(wxCommandEvent&)
+{
+   EndModal(wxID_OK);
+}
+
+void UnwritableLocationErrorDialog::OnError(wxCommandEvent&)
+{
+   HelpSystem::ShowHelp(this, "Error:_Disk_full_or_not_writable", false);
+}

src/widgets/UnwritableLocationErrorDialog.h

@@ -0,0 +1,27 @@
+/**********************************************************************
+
+  Audacity: A Digital Audio Editor
+
+  UnwritableLocationError.h
+
+  Dmitry Vedenko
+
+**********************************************************************/
+
+#pragma once
+
+	
+#include "widgets/wxPanelWrapper.h"
+
+/// An error dialog about unwritable location, that allows to navigate to settings quickly
+class UnwritableLocationErrorDialog final : public wxDialogWrapper
+{
+public:
+   explicit UnwritableLocationErrorDialog(wxWindow* parent, const wxString& path);
+   virtual ~UnwritableLocationErrorDialog();
+
+   void OnOk(wxCommandEvent& event);
+   void OnError(wxCommandEvent& event);
+
+   DECLARE_EVENT_TABLE()
+};