Very large scripts folders could crash the IDE, because it runs out

of Menu IDs (of which there are only 255 in Carbon). Fixed by stopping
examining the scripts folder when we allocate menu ID 200.

Fixes #959291. Need to backport.

Mac/Tools/IDE/Wapplication.py

@@ -275,17 +275,21 @@ class Application(FrameWork.Application):
 		self.makeusermenus()
 	
 	def scriptswalk(self, top, menu, done=None):
+		if menu.id > 200:
+			import W
+			W.Message("Scripts folder not completely traversed: running out of menus")
+			return False
 		if done is None:
 			done = {}
 		if done.has_key(top):
-			return
+			return True
 		done[top] = 1
 		import os, string
 		try:
 			names = os.listdir(top)
 		except os.error:
 			FrameWork.MenuItem(menu, '(Scripts Folder not found)', None, None)
-			return
+			return True
 		savedir = os.getcwd()
 		os.chdir(top)
 		for name in names:
@@ -306,7 +310,8 @@ class Application(FrameWork.Application):
 				menu.addseparator()
 			elif isdir:
 				submenu = FrameWork.SubMenu(menu, name)
-				self.scriptswalk(path, submenu, done)
+				if not self.scriptswalk(path, submenu, done):
+					return False
 			else:
 				creator, type = MacOS.GetCreatorAndType(path)
 				if type == 'TEXT':
@@ -316,6 +321,7 @@ class Application(FrameWork.Application):
 					self._scripts[(menu.id, item.item)] = path
 			done[path] = 1
 		os.chdir(savedir)
+		return True
 	
 	def domenu_script(self, id, item, window, event):
 		(what, message, when, where, modifiers) = event