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Editing: macosxSupport.py
""" 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)
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