mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-07-09 20:35:26 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 11

[3.11] gh-75710: IDLE - add docstrings and comments to editor module (GH-104446) (#104450)

Browse source 
gh-75710: IDLE - add docstrings and comments to editor module (GH-104446)

Commit extracted from PR GH-3669.  Will edit more later.

(cherry picked from commit 46f1c78eeb)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>
This commit is contained in:
Miss Islington (bot) 2023-05-13 09:04:37 -07:00 • committed by GitHub
parent e794d469e3
commit b87ccc38fe
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 102 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

127
Lib/idlelib/editor.py
View file

@ -446,6 +446,26 @@ class EditorWindow:
self.status_bar.set_label('column', 'Col: %s' % column)
self.status_bar.set_label('line', 'Ln: %s' % line)
""" Menu definitions and functions.
* self.menubar - the always visible horizontal menu bar.
* mainmenu.menudefs - a list of tuples, one for each menubar item.
Each tuple pairs a lower-case name and list of dropdown items.
Each item is a name, virtual event pair or None for separator.
* mainmenu.default_keydefs - maps events to keys.
* text.keydefs - same.
* cls.menu_specs - menubar name, titlecase display form pairs
with Alt-hotkey indicator. A subset of menudefs items.
* self.menudict - map menu name to dropdown menu.
* self.recent_files_menu - 2nd level cascade in the file cascade.
* self.wmenu_end - set in __init__ (purpose unclear).
createmenubar, postwindowsmenu, update_menu_label, update_menu_state,
ApplyKeybings (2nd part), reset_help_menu_entries,
_extra_help_callback, update_recent_files_list,
apply_bindings, fill_menus, (other functions?)
"""
menu_specs = [
("file", "_File"),
("edit", "_Edit"),
@ -456,8 +476,22 @@ class EditorWindow:
("help", "_Help"),
]
def createmenubar(self):
"""Populate the menu bar widget for the editor window.
Each option on the menubar is itself a cascade-type Menu widget
with the menubar as the parent. The names, labels, and menu
shortcuts for the menubar items are stored in menu_specs. Each
submenu is subsequently populated in fill_menus(), except for
'Recent Files' which is added to the File menu here.
Instance variables:
menubar: Menu widget containing first level menu items.
menudict: Dictionary of {menuname: Menu instance} items. The keys
represent the valid menu items for this window and may be a
subset of all the menudefs available.
recent_files_menu: Menu widget contained within the 'file' menudict.
"""
mbar = self.menubar
self.menudict = menudict = {}
for name, label in self.menu_specs:
@ -480,7 +514,10 @@ class EditorWindow:
self.reset_help_menu_entries()
def postwindowsmenu(self):
# Only called when Window menu exists
"""Callback to register window.
Only called when Window menu exists.
"""
menu = self.menudict['window']
end = menu.index("end")
if end is None:
@ -859,8 +896,11 @@ class EditorWindow:
self.set_width()
def RemoveKeybindings(self):
"Remove the keybindings before they are changed."
# Called from configdialog.py
"""Remove the virtual, configurable keybindings.
Leaves the default Tk Text keybindings.
"""
# Called from configdialog.deactivate_current_config.
self.mainmenu.default_keydefs = keydefs = idleConf.GetCurrentKeySet()
for event, keylist in keydefs.items():
self.text.event_delete(event, *keylist)
@ -871,15 +911,19 @@ class EditorWindow:
self.text.event_delete(event, *keylist)
def ApplyKeybindings(self):
"Update the keybindings after they are changed"
# Called from configdialog.py
"""Apply the virtual, configurable keybindings.
Alse update hotkeys to current keyset.
"""
# Called from configdialog.activate_config_changes.
self.mainmenu.default_keydefs = keydefs = idleConf.GetCurrentKeySet()
self.apply_bindings()
for extensionName in self.get_standard_extension_names():
xkeydefs = idleConf.GetExtensionBindings(extensionName)
if xkeydefs:
self.apply_bindings(xkeydefs)
#update menu accelerators
# Update menu accelerators.
menuEventDict = {}
for menu in self.mainmenu.menudefs:
menuEventDict[menu[0]] = {}
@ -914,25 +958,25 @@ class EditorWindow:
type='int')
def reset_help_menu_entries(self):
"Update the additional help entries on the Help menu"
"""Update the additional help entries on the Help menu."""
help_list = idleConf.GetAllExtraHelpSourcesList()
helpmenu = self.menudict['help']
# first delete the extra help entries, if any
# First delete the extra help entries, if any.
helpmenu_length = helpmenu.index(END)
if helpmenu_length > self.base_helpmenu_length:
helpmenu.delete((self.base_helpmenu_length + 1), helpmenu_length)
# then rebuild them
# Then rebuild them.
if help_list:
helpmenu.add_separator()
for entry in help_list:
cmd = self.__extra_help_callback(entry[1])
cmd = self._extra_help_callback(entry[1])
helpmenu.add_command(label=entry[0], command=cmd)
# and update the menu dictionary
# And update the menu dictionary.
self.menudict['help'] = helpmenu
def __extra_help_callback(self, helpfile):
"Create a callback with the helpfile value frozen at definition time"
def display_extra_help(helpfile=helpfile):
def _extra_help_callback(self, resource):
"""Return a callback that loads resource (file or web page)."""
def display_extra_help(helpfile=resource):
if not helpfile.startswith(('www', 'http')):
helpfile = os.path.normpath(helpfile)
if sys.platform[:3] == 'win':
@ -1158,6 +1202,7 @@ class EditorWindow:
self.text.bind(vevent, getattr(ins, methodname))
def apply_bindings(self, keydefs=None):
"""Add events with keys to self.text."""
if keydefs is None:
keydefs = self.mainmenu.default_keydefs
text = self.text
@ -1167,9 +1212,10 @@ class EditorWindow:
text.event_add(event, *keylist)
def fill_menus(self, menudefs=None, keydefs=None):
"""Add appropriate entries to the menus and submenus
"""Fill in dropdown menus used by this window.
Menus that are absent or None in self.menudict are ignored.
Items whose name begins with '!' become checkbuttons.
Other names indicate commands. None becomes a separator.
"""
if menudefs is None:
menudefs = self.mainmenu.menudefs
@ -1182,7 +1228,7 @@ class EditorWindow:
if not menu:
continue
for entry in entrylist:
if not entry:
if entry is None:
menu.add_separator()
else:
label, eventname = entry
@ -1218,11 +1264,13 @@ class EditorWindow:
else:
raise NameError(name)
def get_var_obj(self, name, vartype=None):
var = self.tkinter_vars.get(name)
def get_var_obj(self, eventname, vartype=None):
"""Return a tkinter variable instance for the event.
"""
var = self.tkinter_vars.get(eventname)
if not var and vartype:
# create a Tkinter variable object with self.text as master:
self.tkinter_vars[name] = var = vartype(self.text)
# Create a Tkinter variable object.
self.tkinter_vars[eventname] = var = vartype(self.text)
return var
# Tk implementations of "virtual text methods" -- each platform
@ -1613,8 +1661,16 @@ class IndentSearcher:
### end autoindent code ###
def prepstr(s):
# Helper to extract the underscore from a string, e.g.
# prepstr("Co_py") returns (2, "Copy").
"""Extract the underscore from a string.
For example, prepstr("Co_py") returns (2, "Copy").
Args:
s: String with underscore.
Returns:
Tuple of (position of underscore, string without underscore).
"""
i = s.find('_')
if i >= 0:
s = s[:i] + s[i+1:]
@ -1628,6 +1684,18 @@ keynames = {
}
def get_accelerator(keydefs, eventname):
"""Return a formatted string for the keybinding of an event.
Convert the first keybinding for a given event to a form that
can be displayed as an accelerator on the menu.
Args:
keydefs: Dictionary of valid events to keybindings.
eventname: Event to retrieve keybinding for.
Returns:
Formatted string of the keybinding.
"""
keylist = keydefs.get(eventname)
# issue10940: temporary workaround to prevent hang with OS X Cocoa Tk 8.5
# if not keylist:
@ -1637,14 +1705,23 @@ def get_accelerator(keydefs, eventname):
"<<change-indentwidth>>"}):
return ""
s = keylist[0]
# Convert strings of the form -singlelowercase to -singleuppercase.
s = re.sub(r"-[a-z]\b", lambda m: m.group().upper(), s)
# Convert certain keynames to their symbol.
s = re.sub(r"\b\w+\b", lambda m: keynames.get(m.group(), m.group()), s)
# Remove Key- from string.
s = re.sub("Key-", "", s)
s = re.sub("Cancel","Ctrl-Break",s) # dscherer@cmu.edu
# Convert Cancel to Ctrl-Break.
s = re.sub("Cancel", "Ctrl-Break", s) # dscherer@cmu.edu
# Convert Control to Ctrl-.
s = re.sub("Control-", "Ctrl-", s)
# Change - to +.
s = re.sub("-", "+", s)
# Change >< to space.
s = re.sub("><", " ", s)
# Remove <.
s = re.sub("<", "", s)
# Remove >.
s = re.sub(">", "", s)
return s