cpython/Tools/idle/Bindings.py

199 lines
6.8 KiB
Python

# This file defines the menu contents and key bindings. Note that
# there is additional configuration information in the EditorWindow
# class (and subclasses): the menus are created there based on the
# menu_specs (class) variable, and menus not created are silently
# skipped by the code here. This makes it possible to define the
# Debug menu here, which is only present in the PythonShell window.
import sys
import string
import re
menudefs = [
# underscore prefixes character to underscore
('file', [
('_New window', '<<open-new-window>>'),
('_Open...', '<<open-window-from-file>>'),
('Open _module...', '<<open-module>>'),
('Class _browser...', '<<open-class-browser>>'),
None,
('_Save', '<<save-window>>'),
('Save _As...', '<<save-window-as-file>>'),
('Save Co_py As...', '<<save-copy-of-window-as-file>>'),
None,
('_Close', '<<close-window>>'),
('E_xit', '<<close-all-windows>>'),
]),
('edit', [
('_Undo', '<<undo>>'),
('_Redo', '<<redo>>'),
None,
('Cu_t', '<<Cut>>'),
('_Copy', '<<Copy>>'),
('_Paste', '<<Paste>>'),
None,
('_Find...', '<<find>>'),
('Find _next', '<<find-next>>'),
('Find _same', '<<find-same>>'),
('_Go to line', '<<goto-line>>'),
None,
('_Dedent region', '<<dedent-region>>'),
('_Indent region', '<<indent-region>>'),
('Comment _out region', '<<comment-region>>'),
('U_ncomment region', '<<uncomment-region>>'),
]),
('debug', [
('_Go to line from traceback', '<<goto-traceback-line>>'),
('_Open stack viewer', '<<open-stack-viewer>>'),
('_Debugger toggle', '<<toggle-debugger>>'),
]),
('help', [
('_Help...', '<<help>>'),
None,
('_About IDLE...', '<<about-idle>>'),
]),
]
windows_keydefs = {
'<<beginning-of-line>>': ['<Control-a>', '<Home>'],
'<<close-all-windows>>': ['<Control-q>'],
'<<comment-region>>': ['<Meta-Key-3>', '<Alt-Key-3>'],
'<<dedent-region>>': ['<Control-bracketleft>'],
'<<dump-undo-state>>': ['<Control-backslash>'],
'<<end-of-file>>': ['<Control-d>'],
'<<expand-word>>': ['<Meta-slash>', '<Alt-slash>'],
'<<find-next>>': ['<F3>', '<Control-g>'],
'<<find-same>>': ['<Control-F3>'],
'<<find>>': ['<Control-f>'],
'<<goto-line>>': ['<Alt-g>', '<Meta-g>'],
'<<history-next>>': ['<Meta-n>', '<Alt-n>'],
'<<history-previous>>': ['<Meta-p>', '<Alt-p>'],
'<<indent-region>>': ['<Control-bracketright>'],
'<<interrupt-execution>>': ['<Control-c>'],
'<<newline-and-indent>>': ['<Key-Return>', '<KP_Enter>'],
'<<open-new-window>>': ['<Control-n>'],
'<<open-window-from-file>>': ['<Control-o>'],
'<<plain-newline-and-indent>>': ['<Control-j>'],
'<<redo>>': ['<Control-y>'],
'<<save-copy-of-window-as-file>>': ['<Meta-w>'],
'<<save-window-as-file>>': ['<Control-w>'],
'<<save-window>>': ['<Control-s>'],
'<<toggle-auto-coloring>>': ['<Control-slash>'],
'<<uncomment-region>>': ['<Meta-Key-4>', '<Alt-Key-4>'],
'<<undo>>': ['<Control-z>'],
}
emacs_keydefs = {
'<<Copy>>': ['<Alt-w>'],
'<<Cut>>': ['<Control-w>'],
'<<Paste>>': ['<Control-y>'],
'<<about-idle>>': [],
'<<beginning-of-line>>': ['<Control-a>', '<Home>'],
'<<center-insert>>': ['<Control-l>'],
'<<close-all-windows>>': ['<Control-x><Control-c>'],
'<<close-window>>': ['<Control-x><Control-0>'],
'<<comment-region>>': ['<Meta-Key-3>', '<Alt-Key-3>'],
'<<dedent-region>>': ['<Meta-bracketleft>',
'<Alt-bracketleft>',
'<Control-bracketleft>'],
'<<do-nothing>>': ['<Control-x>'],
'<<dump-undo-state>>': ['<Control-backslash>'],
'<<end-of-file>>': ['<Control-d>'],
'<<expand-word>>': ['<Meta-slash>', '<Alt-slash>'],
'<<find-next>>': ['<Control-u><Control-s>'],
'<<find-same>>': ['<Control-s>'],
'<<find>>': ['<Control-u><Control-u><Control-s>'],
'<<goto-line>>': ['<Alt-g>', '<Meta-g>'],
'<<goto-traceback-line>>': [],
'<<help>>': [],
'<<history-next>>': ['<Meta-n>', '<Alt-n>'],
'<<history-previous>>': ['<Meta-p>', '<Alt-p>'],
'<<indent-region>>': ['<Meta-bracketright>',
'<Alt-bracketright>',
'<Control-bracketright>'],
'<<interrupt-execution>>': ['<Control-c>'],
'<<newline-and-indent>>': ['<Key-Return>', '<KP_Enter>'],
'<<open-class-browser>>': ['<Control-x><Control-b>'],
'<<open-module>>': ['<Control-x><Control-m>'],
'<<open-new-window>>': ['<Control-x><Control-n>'],
'<<open-stack-viewer>>': [],
'<<open-window-from-file>>': ['<Control-x><Control-f>'],
'<<plain-newline-and-indent>>': ['<Control-j>'],
'<<redo>>': ['<Alt-z>', '<Meta-z>'],
'<<save-copy-of-window-as-file>>': ['<Control-x><w>'],
'<<save-window-as-file>>': ['<Control-x><Control-w>'],
'<<save-window>>': ['<Control-x><Control-s>'],
'<<toggle-auto-coloring>>': ['<Control-slash>'],
'<<toggle-debugger>>': [],
'<<uncomment-region>>': ['<Meta-Key-4>', '<Alt-Key-4>'],
'<<undo>>': ['<Control-z>'],
}
def prepstr(s):
# Helper to extract the underscore from a string,
# e.g. prepstr("Co_py") returns (2, "Copy").
i = string.find(s, '_')
if i >= 0:
s = s[:i] + s[i+1:]
return i, s
keynames = {
'bracketleft': '[',
'bracketright': ']',
}
def getaccelerator(keydefs, event):
keylist = keydefs.get(event)
if not keylist:
return ""
s = keylist[0]
if s[:6] == "<Meta-":
# Prefer Alt over Meta -- they should be the same thing anyway
alts = "<Alt-" + s[6:]
if alts in keylist:
s = alts
s = re.sub(r"-[a-z]\b", lambda m: string.upper(m.group()), s)
s = re.sub(r"\b\w+\b", lambda m: keynames.get(m.group(), m.group()), s)
s = re.sub("Key-", "", s)
s = re.sub("Control-", "Ctrl-", s)
s = re.sub("-", "+", s)
s = re.sub("><", " ", s)
s = re.sub("<", "", s)
s = re.sub(">", "", s)
return s
if sys.platform == 'win32':
default_keydefs = windows_keydefs
else:
default_keydefs = emacs_keydefs
def apply_bindings(text, keydefs=default_keydefs):
text.keydefs = keydefs
for event, keylist in keydefs.items():
if keylist:
apply(text.event_add, (event,) + tuple(keylist))
def fill_menus(text, menudict, defs=menudefs):
# Fill the menus for the given text widget. The menudict argument is
# a dictionary containing the menus, keyed by their lowercased name.
# Menus that are absent or None are ignored.
if hasattr(text, "keydefs"):
keydefs = text.keydefs
else:
keydefs = default_keydefs
for mname, itemlist in defs:
menu = menudict.get(mname)
if not menu:
continue
for item in itemlist:
if not item:
menu.add_separator()
else:
label, event = item
underline, label = prepstr(label)
accelerator = getaccelerator(keydefs, event)
def command(text=text, event=event):
text.event_generate(event)
menu.add_command(label=label, underline=underline,
command=command, accelerator=accelerator)