quartz: added open capability to gtk_application

This patch implements the openFiles delegate which is required
to open files which are associated with an application via the
Finder or via open on the command line. The patch has been
proposed by jessevdk@gmail.com.

See: https://gitlab.gnome.org/GNOME/gtk/-/issues/463

I tested the patch with the GNU pspp application on MacOS with
the quartz backend.

1 files changed, 30 insertions, 0 deletions

diff --git a/gtk/gtkapplication-quartz.c b/gtk/gtkapplication-quartz.c
index 9794d7b862..7abea53a5d 100644
--- a/gtk/gtkapplication-quartz.c
+++ b/gtk/gtkapplication-quartz.c
@@ -64,6 +64,7 @@ G_DEFINE_TYPE (GtkApplicationImplQuartz, gtk_application_impl_quartz, GTK_TYPE_A
 
 - (id)initWithImpl:(GtkApplicationImplQuartz*)impl;
 - (NSApplicationTerminateReply) applicationShouldTerminate:(NSApplication *)sender;
+- (void)application:(NSApplication *)theApplication openFiles:(NSArray *)filenames;
 @end
 
 @implementation GtkApplicationQuartzDelegate
@@ -84,6 +85,35 @@ G_DEFINE_TYPE (GtkApplicationImplQuartz, gtk_application_impl_quartz, GTK_TYPE_A
    */
   return quartz->quit_inhibit == 0 ? NSTerminateNow : NSTerminateCancel;
 }
+
+-(void)application:(NSApplication *)theApplication openFiles:(NSArray *)filenames
+{
+  GFile **files;
+  gint i;
+  GApplicationFlags flags;
+
+  flags = g_application_get_flags (G_APPLICATION (quartz->impl.application));
+
+  if (~flags & G_APPLICATION_HANDLES_OPEN)
+    {
+      [theApplication replyToOpenOrPrint:NSApplicationDelegateReplyFailure];
+      return;
+    }
+
+  files = g_new (GFile *, [filenames count]);
+
+  for (i = 0; i < [filenames count]; i++)
+    files[i] = g_file_new_for_path ([(NSString *)[filenames objectAtIndex:i] UTF8String]);
+
+  g_application_open (G_APPLICATION (quartz->impl.application), files, [filenames count], "");
+
+  for (i = 0; i < [filenames count]; i++)
+    g_object_unref (files[i]);
+
+  g_free (files);
+
+  [theApplication replyToOpenOrPrint:NSApplicationDelegateReplySuccess];
+}
 @end
 
 /* these exist only for accel handling */