Bug 1119 - Mac: Window menu's list of open windows not available

src/AudacityApp.cpp

@@ -109,6 +109,10 @@ It handles initialization and termination by subclassing wxApp.
 #include "tracks/ui/Scrubbing.h"
 #include "widgets/FileHistory.h"
 
+#if defined(__WXMAC__)
+#include "menus/WindowMenus.h"
+#endif
+
 #ifdef EXPERIMENTAL_EASY_CHANGE_KEY_BINDINGS
 #include "prefs/KeyConfigPrefs.h"
 #endif
@@ -885,6 +889,11 @@ BEGIN_EVENT_TABLE(AudacityApp, wxApp)
    EVT_MENU_RANGE(FileHistory::ID_RECENT_FIRST, FileHistory::ID_RECENT_LAST,
       AudacityApp::OnMRUFile)
 
+#if defined(__WXMAC__)
+   // Window menu event handlers.
+   EVT_MENU_RANGE(WindowActions::ID_BASE, WindowActions::ID_LAST, AudacityApp::OnWindow)
+#endif
+
    // Handle AppCommandEvents (usually from a script)
    EVT_APP_COMMAND(wxID_ANY, AudacityApp::OnReceiveCommand)
 
@@ -978,6 +987,35 @@ void AudacityApp::OnMRUFile(wxCommandEvent& event) {
       history.RemoveFileFromHistory(n);
 }
 
+#if defined(__WXMAC__)
+// Handles switching projects when an item in the Window menu is selected
+void AudacityApp::OnWindow(wxCommandEvent& event)
+{
+   // Get the project's number
+   int projectNumber = event.GetId() - WindowActions::ID_BASE;
+
+   // Search for it
+   for (auto project : AllProjects{})
+   {
+      if (project->GetProjectNumber() == projectNumber)
+      {
+         // Make it the active project
+         SetActiveProject(project.get());
+
+         // And ensure it's visible
+         wxFrame *frame = project->GetFrame();
+         if (frame->IsIconized())
+         {
+            frame->Restore();
+         }
+         frame->Raise();
+
+         break;
+      }
+   }
+}
+#endif
+
 void AudacityApp::OnTimer(wxTimerEvent& WXUNUSED(event))
 {
    // Filenames are queued when Audacity receives a few of the