"""
A number of function that enhance IDLE on MacOSX when it used as a normal
GUI application (as opposed to an X11 application).
"""
import sys
import tkinter
from os import path
_appbundle = None
def runningAsOSXApp():
"""
Returns True if Python is running from within an app on OSX.
If so, the various OS X customizations will be triggered later (menu
fixup, et al). (Originally, this test was supposed to condition
behavior on whether IDLE was running under Aqua Tk rather than
under X11 Tk but that does not work since a framework build
could be linked with X11. For several releases, this test actually
differentiates between whether IDLE is running from a framework or
not. As a future enhancement, it should be considered whether there
should be a difference based on framework and any needed X11 adaptions
should be made dependent on a new function that actually tests for X11.)
"""
global _appbundle
if _appbundle is None:
_appbundle = sys.platform == 'darwin'
if _appbundle:
import sysconfig
_appbundle = bool(sysconfig.get_config_var('PYTHONFRAMEWORK'))
return _appbundle
_carbonaquatk = None
def isCarbonAquaTk(root):
"""
Returns True if IDLE is using a Carbon Aqua Tk (instead of the
newer Cocoa Aqua Tk).
"""
global _carbonaquatk
if _carbonaquatk is None:
_carbonaquatk = (runningAsOSXApp() and
'aqua' in root.tk.call('tk', 'windowingsystem') and
'AppKit' not in root.tk.call('winfo', 'server', '.'))
return _carbonaquatk
def tkVersionWarning(root):
"""
Returns a string warning message if the Tk version in use appears to
be one known to cause problems with IDLE.
1. Apple Cocoa-based Tk 8.5.7 shipped with Mac OS X 10.6 is unusable.
2. Apple Cocoa-based Tk 8.5.9 in OS X 10.7 and 10.8 is better but
can still crash unexpectedly.
"""
if (runningAsOSXApp() and
('AppKit' in root.tk.call('winfo', 'server', '.')) ):
patchlevel = root.tk.call('info', 'patchlevel')
if patchlevel not in ('8.5.7', '8.5.9'):
return False
return (r"WARNING: The version of Tcl/Tk ({0}) in use may"
r" be unstable.\n"
r"Visit http://www.python.org/download/mac/tcltk/"
r" for current information.".format(patchlevel))
else:
return False
def addOpenEventSupport(root, flist):
"""
This ensures that the application will respond to open AppleEvents, which
makes is feasible to use IDLE as the default application for python files.
"""
def doOpenFile(*args):
for fn in args:
flist.open(fn)
# The command below is a hook in aquatk that is called whenever the app
# receives a file open event. The callback can have multiple arguments,
# one for every file that should be opened.
root.createcommand("::tk::mac::OpenDocument", doOpenFile)
def hideTkConsole(root):
try:
root.tk.call('console', 'hide')
except tkinter.TclError:
# Some versions of the Tk framework don't have a console object
pass
def overrideRootMenu(root, flist):
"""
Replace the Tk root menu by something that's more appropriate for
IDLE.
"""
# The menu that is attached to the Tk root (".") is also used by AquaTk for
# all windows that don't specify a menu of their own. The default menubar
# contains a number of menus, none of which are appropriate for IDLE. The
# Most annoying of those is an 'About Tck/Tk...' menu in the application
# menu.
#
# This function replaces the default menubar by a mostly empty one, it
# should only contain the correct application menu and the window menu.
#
# Due to a (mis-)feature of TkAqua the user will also see an empty Help
# menu.
from tkinter import Menu, Text, Text
from idlelib.EditorWindow import prepstr, get_accelerator
from idlelib import Bindings
from idlelib import WindowList
from idlelib.MultiCall import MultiCallCreator
menubar = Menu(root)
root.configure(menu=menubar)
menudict = {}
menudict['windows'] = menu = Menu(menubar, name='windows')
menubar.add_cascade(label='Window', menu=menu, underline=0)
def postwindowsmenu(menu=menu):
end = menu.index('end')
if end is None:
end = -1
if end > 0:
menu.delete(0, end)
WindowList.add_windows_to_menu(menu)
WindowList.register_callback(postwindowsmenu)
def about_dialog(event=None):
from idlelib import aboutDialog
aboutDialog.AboutDialog(root, 'About IDLE')
def config_dialog(event=None):
from idlelib import configDialog
# Ensure that the root object has an instance_dict attribute,
# mirrors code in EditorWindow (although that sets the attribute
# on an EditorWindow instance that is then passed as the first
# argument to ConfigDialog)
root.instance_dict = flist.inversedict
root.instance_dict = flist.inversedict
configDialog.ConfigDialog(root, 'Settings')
def help_dialog(event=None):
from idlelib import textView
fn = path.join(path.abspath(path.dirname(__file__)), 'help.txt')
textView.view_file(root, 'Help', fn)
root.bind('<<about-idle>>', about_dialog)
root.bind('<<open-config-dialog>>', config_dialog)
root.createcommand('::tk::mac::ShowPreferences', config_dialog)
if flist:
root.bind('<<close-all-windows>>', flist.close_all_callback)
# The binding above doesn't reliably work on all versions of Tk
# on MacOSX. Adding command definition below does seem to do the
# right thing for now.
root.createcommand('exit', flist.close_all_callback)
if isCarbonAquaTk(root):
# for Carbon AquaTk, replace the default Tk apple menu
menudict['application'] = menu = Menu(menubar, name='apple')
menubar.add_cascade(label='IDLE', menu=menu)
Bindings.menudefs.insert(0,
('application', [
('About IDLE', '<<about-idle>>'),
None,
]))
tkversion = root.tk.eval('info patchlevel')
if tuple(map(int, tkversion.split('.'))) < (8, 4, 14):
# for earlier AquaTk versions, supply a Preferences menu item
Bindings.menudefs[0][1].append(
('_Preferences....', '<<open-config-dialog>>'),
)
else:
# assume Cocoa AquaTk
# replace default About dialog with About IDLE one
root.createcommand('tkAboutDialog', about_dialog)
# replace default "Help" item in Help menu
root.createcommand('::tk::mac::ShowHelp', help_dialog)
# remove redundant "IDLE Help" from menu
del Bindings.menudefs[-1][1][0]
def setupApp(root, flist):
"""
Perform setup for the OSX application bundle.
"""
if not runningAsOSXApp(): return
hideTkConsole(root)
overrideRootMenu(root, flist)
addOpenEventSupport(root, flist)
