StandardFile compatability routines. For the time being calling macfsn._install()

will install these in macfs (if Navigation is available).

Mac/Lib/macfsn.py

@@ -0,0 +1,130 @@
+"""StandardFile compatability module: implement macfs StandardFile
+API calls with Navigation Services"""
+import macfs
+import struct
+import Res
+try:
+	import Nav
+except ImportError:
+	Nav = None
+
+_curfolder = None
+_movablemodal = 1
+
+def _mktypelist(typelist):
+	if not typelist:
+		return None
+	data = 'Pyth' + struct.pack("hh", 0, len(typelist))
+	for type in typelist:
+		data = data+type
+	return Res.Resource(data)
+	
+def _StandardGetFile(*typelist):
+	return apply(_PromptGetFile, (None,)+typelist)
+	
+def _PromptGetFile(prompt, *typelist):
+	args = {}
+	flags = 0x56
+	typehandle = _mktypelist(typelist)
+	if typehandle:
+		args['typeList'] = typehandle
+	else:
+		flags = flags | 0x01
+	if prompt:
+		args['message'] = prompt
+	args['preferenceKey'] = 'PyMC'
+	if _movablemodal:
+		args['eventProc'] = None
+	try:
+		rr = Nav.NavChooseFile(args)
+		good = 1
+	except Nav.error, arg:
+		good = 0
+		fss = macfs.FSSpec(':cancelled')
+	else:
+		fss = rr.selection[0]
+##	if typehandle:
+##		typehandle.DisposeHandle()
+	return fss, good
+
+def _StandardPutFile(prompt, default=None):
+	args = {}
+	flags = 0x57
+	if prompt:
+		args['message'] = prompt
+	args['preferenceKey'] = 'PyMC'
+	if _movablemodal:
+		args['eventProc'] = None
+	try:
+		rr = Nav.NavPutFile(args)
+		good = 1
+	except Nav.error, arg:
+		good = 0
+		fss = macfs.FSSpec(':cancelled')
+	else:
+		fss = rr.selection[0]
+	return fss, good
+	
+def _SetFolder(folder):
+	global _curfolder
+	if _curfolder:
+		rv = _curfolder
+	else:
+		_curfolder = macfs.FSSpec(":")
+	_curfolder = macfs.FSSpec(folder)
+	return rv
+	
+def _GetDirectory(prompt=None):
+	args = {}
+	flags = 0x57
+	if prompt:
+		args['message'] = prompt
+	args['preferenceKey'] = 'PyMC'
+	if _movablemodal:
+		args['eventProc'] = None
+	try:
+		rr = Nav.NavChooseFolder(args)
+		good = 1
+	except Nav.error, arg:
+		good = 0
+		fss = macfs.FSSpec(':cancelled')
+	else:
+		fss = rr.selection[0]
+	return fss, good
+	
+def _install():
+	macfs.StandardGetFile = StandardGetFile
+	macfs.PromptGetFile = PromptGetFile
+	macfs.StandardPutFile = StandardPutFile
+	macfs.SetFolder = SetFolder
+	macfs.GetDirectory = GetDirectory
+	
+if Nav and Nav.NavServicesAvailable():
+	StandardGetFile = _StandardGetFile
+	PromptGetFile = _PromptGetFile
+	StandardPutFile = _StandardPutFile
+	SetFolder = _SetFolder
+	GetDirectory = _GetDirectory
+else:
+	from macfs import StandardGetFile, PromptGetFile, StandardPutFile, SetFolder, GetDirectory
+	
+
+if __name__ == '__main__':
+	print 'Testing StandardGetFile'
+	fss, ok = StandardGetFile()
+	print '->', fss, ok
+	print 'Testing StandardGetFile("TEXT")'
+	fss, ok = StandardGetFile("TEXT")
+	print '->', fss, ok
+	print 'Testing PromptGetFile'
+	fss, ok = PromptGetFile("prompt")
+	print '->', fss, ok
+	print 'Testing StandardPutFile("the prompt", "default")'
+	fss, ok = StandardPutFile("the prompt", "default")
+	print '->', fss, ok
+	print 'Testing GetDirectory("another prompt")'
+	fss, ok = GetDirectory("Another prompt")
+	print '->', fss, ok
+	import sys
+	sys.exit(1)
+