cocoa: fix startup -psn_ and file handling

collects/mred/private/app.rkt

@@ -1,6 +1,6 @@
-(module app mzscheme
-  (require mzlib/class
-	   (prefix wx: "kernel.ss")
+(module app racket/base
+  (require racket/class
+	   (prefix-in wx: "kernel.ss")
 	   "lock.ss"
 	   "helper.ss"
 	   "wx.ss"
@@ -50,7 +50,7 @@
 			       (set! running-quit? #f)))))))))))])
     (wx:application-quit-handler (make-app-handler f f)))
 
-  (define (set-handler! who proc param arity result-filter)
+  (define (set-handler! who proc param arity result-filter post-set)
     (when proc
       (unless (and (procedure? proc)
 		   (procedure-arity-includes? proc arity))
@@ -65,7 +65,8 @@
 		    (wx:queue-callback
 		     (lambda () (result-filter (apply proc args)))
 		     wx:middle-queue-key)))
-		proc)))))
+		proc))
+        (post-set))))
 
   (define application-preferences-handler
     (case-lambda
@@ -75,7 +76,8 @@
       (set-handler! 'application-preferences-handler proc
 		    wx:application-pref-handler
 		    0
-		    values)]))
+		    values
+                    void)]))
 
   (define application-about-handler
     (case-lambda
@@ -86,7 +88,8 @@
       (set-handler! 'application-about-handler proc
 		    wx:application-about-handler
 		    0
-		    values)]))
+		    values
+                    void)]))
 
   (define application-quit-handler
     (case-lambda
@@ -97,18 +100,33 @@
       (set-handler! 'application-quit-handler proc
 		    wx:application-quit-handler
 		    0
-		    (lambda (v) (unless v (wx:cancel-quit)) v))]))
+		    (lambda (v) (unless v (wx:cancel-quit)) v)
+                    void)]))
+
+  (define saved-files null)
 
   (define default-application-file-handler
     (entry-point
      (lambda (f)
        (let ([af (weak-box-value active-main-frame)])
-	 (when af
+	 (if af
              (queue-window-callback
               af
               (entry-point
-	     (lambda () (when (send af accept-drag?)
-			      (send af on-drop-file f))))))))))
+               (lambda () (if (send af accept-drag?)
+                              (send af on-drop-file f)
+                              (set! saved-files (cons f saved-files))))))
+             (set! saved-files (cons f saved-files)))))))
+
+  (define (requeue-saved-files)
+    (as-entry
+     (lambda ()
+       (for-each (lambda (f)
+                   (wx:queue-callback (lambda ()
+                                        ((wx:application-file-handler) f))
+                                      wx:middle-queue-key))
+                 (reverse saved-files))
+       (set! saved-files null))))
 
   (define (install-defh)
     (wx:application-file-handler (make-app-handler
@@ -129,7 +147,8 @@
 	  (set-handler! 'application-file-handler proc
 			wx:application-file-handler
 			1
-			values))]))
+			values
+                        requeue-saved-files))]))
 
 
   (define (current-eventspace-has-standard-menus?)

collects/mred/private/wx/common/handlers.rkt

@@ -1,4 +1,4 @@
-#lang scheme/base
+#lang racket/base
 
 (provide application-file-handler
          application-quit-handler
@@ -7,10 +7,16 @@
 
          nothing-application-pref-handler)
 
-(define afh void)
+(define saved-files null)
+(define afh (lambda (f)
+              (set! saved-files (cons f saved-files))))
 (define application-file-handler
   (case-lambda
-   [(proc) (set! afh proc)]
+   [(proc) 
+    (set! afh proc)
+    (let ([sf saved-files])
+      (set! saved-files null)
+      (for-each proc (reverse sf)))]
    [() afh]))
 
 (define aqh void)

collects/scribblings/gui/system-menu-funcs.scrbl

@@ -113,7 +113,9 @@ When the current eventspace is the initial eventspace, this procedure
 The default handler queues a callback to the
 @method[window<%> on-drop-file] method of the most-recently activated frame in the main eventspace (see
 @scheme[get-top-level-edit-target-window]), if
- drag-and-drop is enabled for that frame.
+ drag-and-drop is enabled for that frame. Otherwise, it saves
+ the filename and re-queues the handler event when the application
+ file handler is later changed.
 
 When the application is @italic{not} running and user double-clicks an
  application-handled file or drags a file onto the application's icon,

src/gracket/grmain.c

@@ -25,6 +25,11 @@ static char *get_gr_init_filename(struct Scheme_Env *env);
 static void pre_filter_cmdline_arguments(int *argc, char ***argv);
 #endif
 
+#ifdef wx_mac
+# define PRE_FILTER_CMDLINE_ARGUMENTS
+static void pre_filter_cmdline_arguments(int *argc, char ***argv);
+#endif
+
 #define UNIX_INIT_FILENAME "~/.gracketrc"
 #define WINDOWS_INIT_FILENAME "%%HOMEDIRVE%%\\%%HOMEPATH%%\\gracketrc.rktd"
 #define MACOS9_INIT_FILENAME "PREFERENCES:gracketrc.rktd"
@@ -863,3 +868,27 @@ static void pre_filter_cmdline_arguments(int *argc, char ***argv)
 }
 
 #endif
+
+/***********************************************************************/
+/*                   Mac OS X flag handling                            */
+/***********************************************************************/
+
+#ifdef wx_mac
+
+static void pre_filter_cmdline_arguments(int *argc, char ***argv)
+  XFORM_SKIP_PROC
+{
+  if ((*argc > 1) && !strncmp((*argv)[1], "-psn_", 5)) {
+    /* Finder adds "-psn_" when you double-click on the application.
+       Drop it. */
+    char **new_argv;
+    new_argv = (char **)malloc(((*argc) - 1) * sizeof(char *));
+    new_argv[0] = (*argv)[0];
+    memcpy(new_argv + 1, (*argv) + 2, ((*argc) - 2) * sizeof(char *));
+    (*argc)--;
+    *argv = new_argv;
+  }
+}
+
+#endif
+