cpython/Lib/idlelib/FileList.py at 3.5 · python/cpython · GitHub

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import os

from tkinter import *

import tkinter.messagebox as tkMessageBox

class FileList:

# N.B. this import overridden in PyShellFileList.

from idlelib.EditorWindow import EditorWindow

def __init__(self, root):

self.root = root

self.dict = {}

self.inversedict = {}

self.vars = {} # For EditorWindow.getrawvar (shared Tcl variables)

def open(self, filename, action=None):

assert filename

filename = self.canonize(filename)

if os.path.isdir(filename):

# This can happen when bad filename is passed on command line:

tkMessageBox.showerror(

"File Error",

"%r is a directory." % (filename,),

master=self.root)

return None

key = os.path.normcase(filename)

if key in self.dict:

edit = self.dict[key]

edit.top.wakeup()

return edit

if action:

# Don't create window, perform 'action', e.g. open in same window

return action(filename)

else:

edit = self.EditorWindow(self, filename, key)

if edit.good_load:

return edit

else:

edit._close()

return None

def gotofileline(self, filename, lineno=None):

edit = self.open(filename)

if edit is not None and lineno is not None:

edit.gotoline(lineno)

def new(self, filename=None):

return self.EditorWindow(self, filename)

def close_all_callback(self, *args, **kwds):

for edit in list(self.inversedict):

reply = edit.close()

if reply == "cancel":

break

return "break"

def unregister_maybe_terminate(self, edit):

try:

key = self.inversedict[edit]

except KeyError:

print("Don't know this EditorWindow object. (close)")

return

if key:

del self.dict[key]

del self.inversedict[edit]

if not self.inversedict:

self.root.quit()

def filename_changed_edit(self, edit):

edit.saved_change_hook()

try:

key = self.inversedict[edit]

except KeyError:

print("Don't know this EditorWindow object. (rename)")

return

filename = edit.io.filename

if not filename:

if key:

del self.dict[key]

self.inversedict[edit] = None

return

filename = self.canonize(filename)

newkey = os.path.normcase(filename)

if newkey == key:

return

if newkey in self.dict:

conflict = self.dict[newkey]

self.inversedict[conflict] = None

tkMessageBox.showerror(

"Name Conflict",

"You now have multiple edit windows open for %r" % (filename,),

master=self.root)

self.dict[newkey] = edit

self.inversedict[edit] = newkey

if key:

try:

del self.dict[key]

except KeyError:

pass

def canonize(self, filename):

if not os.path.isabs(filename):

try:

pwd = os.getcwd()

except OSError:

pass

else:

filename = os.path.join(pwd, filename)

return os.path.normpath(filename)

def _test():

from idlelib.EditorWindow import fixwordbreaks

import sys

root = Tk()

fixwordbreaks(root)

root.withdraw()

flist = FileList(root)

if sys.argv[1:]:

for filename in sys.argv[1:]:

flist.open(filename)

else:

flist.new()

if flist.inversedict:

root.mainloop()

if __name__ == '__main__':

_test()

cpython/Lib/idlelib/FileList.py at 3.5 · python/cpython · GitHub

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