cpython/Lib/plat-mac/macfs.py

196 lines
5.3 KiB
Python

"""macfs - Pure Python module designed to be backward compatible with
macfs and MACFS.
"""
import sys
import struct
import Carbon.Res
import Carbon.File
import warnings
# First step: ensure we also emulate the MACFS module, which contained
# all the constants
sys.modules['MACFS'] = sys.modules[__name__]
# Import all those constants
from Carbon.Files import *
from Carbon.Folders import *
# For some obscure historical reason these are here too:
READ = 1
WRITE = 2
smAllScripts = -3
#
# Find the epoch conversion for file dates in a way that works on OS9 and OSX
import time
if time.gmtime(0)[0] == 1970:
_EPOCHCONVERT = -((1970-1904)*365 + 17) * (24*60*60) + 0x100000000L
def _utc2time(utc):
t = utc[1] + _EPOCHCONVERT
return int(t)
def _time2utc(t):
t = int(t) - _EPOCHCONVERT
if t < -0x7fffffff:
t = t + 0x10000000L
return (0, int(t), 0)
else:
def _utc2time(utc):
t = utc[1]
if t < 0:
t = t + 0x100000000L
return t
def _time2utc(t):
if t > 0x7fffffff:
t = t - 0x100000000L
return (0, int(t), 0)
# The old name of the error object:
error = Carbon.File.Error
#
# The various objects macfs used to export. We override them here, because some
# of the method names are subtly different.
#
class FSSpec(Carbon.File.FSSpec):
def as_fsref(self):
return FSRef(self)
def NewAlias(self, src=None):
return Alias(Carbon.File.NewAlias(src, self))
def GetCreatorType(self):
finfo = self.FSpGetFInfo()
return finfo.Creator, finfo.Type
def SetCreatorType(self, ctor, tp):
finfo = self.FSpGetFInfo()
finfo.Creator = ctor
finfo.Type = tp
self.FSpSetFInfo(finfo)
def GetFInfo(self):
return self.FSpGetFInfo()
def SetFInfo(self, info):
return self.FSpSetFInfo(info)
def GetDates(self):
catInfoFlags = kFSCatInfoCreateDate|kFSCatInfoContentMod|kFSCatInfoBackupDate
catinfo, d1, d2, d3 = FSRef(self).FSGetCatalogInfo(catInfoFlags)
cdate = catinfo.createDate
mdate = catinfo.contentModDate
bdate = catinfo.backupDate
return _utc2time(cdate), _utc2time(mdate), _utc2time(bdate)
def SetDates(self, cdate, mdate, bdate):
catInfoFlags = kFSCatInfoCreateDate|kFSCatInfoContentMod|kFSCatInfoBackupDate
catinfo = Carbon.File.FSCatalogInfo(
createDate = _time2utc(cdate),
contentModDate = _time2utc(mdate),
backupDate = _time2utc(bdate))
FSRef(self).FSSetCatalogInfo(catInfoFlags, catinfo)
class FSRef(Carbon.File.FSRef):
def as_fsspec(self):
return FSSpec(self)
class Alias(Carbon.File.Alias):
def GetInfo(self, index):
return self.GetAliasInfo(index)
def Update(self, *args):
pass # print "Alias.Update not yet implemented"
def Resolve(self, src=None):
fss, changed = self.ResolveAlias(src)
return FSSpec(fss), changed
from Carbon.File import FInfo
# Backward-compatible type names:
FSSpecType = FSSpec
FSRefType = FSRef
AliasType = Alias
FInfoType = FInfo
# Global functions:
def ResolveAliasFile(fss, chain=1):
fss, isdir, isalias = Carbon.File.ResolveAliasFile(fss, chain)
return FSSpec(fss), isdir, isalias
def RawFSSpec(data):
return FSSpec(rawdata=data)
def RawAlias(data):
return Alias(rawdata=data)
def FindApplication(*args):
raise NotImplementedError, "FindApplication no longer implemented"
def NewAliasMinimalFromFullPath(path):
return Alias(Carbon.File.NewAliasMinimalFromFullPath(path, '', ''))
# Another global function:
from Carbon.Folder import FindFolder
#
# Finally the old Standard File routine emulators.
#
_curfolder = None
def StandardGetFile(*typelist):
"""Ask for an input file, optionally specifying 4-char file types that are
allowable"""
return PromptGetFile('', *typelist)
def PromptGetFile(prompt, *typelist):
"""Ask for an input file giving the user a prompt message. Optionally you can
specifying 4-char file types that are allowable"""
import EasyDialogs
warnings.warn("macfs.StandardGetFile and friends are deprecated, use EasyDialogs.AskFileForOpen",
DeprecationWarning, stacklevel=2)
if not typelist:
typelist = None
fss = EasyDialogs.AskFileForOpen(message=prompt, wanted=FSSpec,
typeList=typelist, defaultLocation=_handleSetFolder())
return fss, not fss is None
def StandardPutFile(prompt, default=None):
"""Ask the user for an output file, with a prompt. Optionally you cn supply a
default output filename"""
import EasyDialogs
warnings.warn("macfs.StandardGetFile and friends are deprecated, use EasyDialogs.AskFileForOpen",
DeprecationWarning, stacklevel=2)
fss = EasyDialogs.AskFileForSave(wanted=FSSpec, message=prompt,
savedFileName=default, defaultLocation=_handleSetFolder())
return fss, not fss is None
def SetFolder(folder):
global _curfolder
warnings.warn("macfs.StandardGetFile and friends are deprecated, use EasyDialogs.AskFileForOpen",
DeprecationWarning, stacklevel=2)
if _curfolder:
rv = FSSpec(_curfolder)
else:
rv = None
_curfolder = folder
return rv
def _handleSetFolder():
global _curfolder
rv = _curfolder
_curfolder = None
return rv
def GetDirectory(prompt=None):
"""Ask the user to select a folder. Optionally you can give a prompt."""
import EasyDialogs
warnings.warn("macfs.StandardGetFile and friends are deprecated, use EasyDialogs.AskFileForOpen",
DeprecationWarning, stacklevel=2)
fss = EasyDialogs.AskFolder(message=prompt, wanted=FSSpec,
defaultLocation=_handleSetFolder())
return fss, not fss is None