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planemo upload commit 2e9511a184a1ca667c7be0c6321a36dc4e3d116d
author jpayne
date Tue, 18 Mar 2025 17:55:14 -0400
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1 """idlelib.config -- Manage IDLE configuration information.
2
3 The comments at the beginning of config-main.def describe the
4 configuration files and the design implemented to update user
5 configuration information. In particular, user configuration choices
6 which duplicate the defaults will be removed from the user's
7 configuration files, and if a user file becomes empty, it will be
8 deleted.
9
10 The configuration database maps options to values. Conceptually, the
11 database keys are tuples (config-type, section, item). As implemented,
12 there are separate dicts for default and user values. Each has
13 config-type keys 'main', 'extensions', 'highlight', and 'keys'. The
14 value for each key is a ConfigParser instance that maps section and item
15 to values. For 'main' and 'extensions', user values override
16 default values. For 'highlight' and 'keys', user sections augment the
17 default sections (and must, therefore, have distinct names).
18
19 Throughout this module there is an emphasis on returning useable defaults
20 when a problem occurs in returning a requested configuration value back to
21 idle. This is to allow IDLE to continue to function in spite of errors in
22 the retrieval of config information. When a default is returned instead of
23 a requested config value, a message is printed to stderr to aid in
24 configuration problem notification and resolution.
25 """
26 # TODOs added Oct 2014, tjr
27
28 from configparser import ConfigParser
29 import os
30 import sys
31
32 from tkinter.font import Font
33 import idlelib
34
35 class InvalidConfigType(Exception): pass
36 class InvalidConfigSet(Exception): pass
37 class InvalidTheme(Exception): pass
38
39 class IdleConfParser(ConfigParser):
40 """
41 A ConfigParser specialised for idle configuration file handling
42 """
43 def __init__(self, cfgFile, cfgDefaults=None):
44 """
45 cfgFile - string, fully specified configuration file name
46 """
47 self.file = cfgFile # This is currently '' when testing.
48 ConfigParser.__init__(self, defaults=cfgDefaults, strict=False)
49
50 def Get(self, section, option, type=None, default=None, raw=False):
51 """
52 Get an option value for given section/option or return default.
53 If type is specified, return as type.
54 """
55 # TODO Use default as fallback, at least if not None
56 # Should also print Warning(file, section, option).
57 # Currently may raise ValueError
58 if not self.has_option(section, option):
59 return default
60 if type == 'bool':
61 return self.getboolean(section, option)
62 elif type == 'int':
63 return self.getint(section, option)
64 else:
65 return self.get(section, option, raw=raw)
66
67 def GetOptionList(self, section):
68 "Return a list of options for given section, else []."
69 if self.has_section(section):
70 return self.options(section)
71 else: #return a default value
72 return []
73
74 def Load(self):
75 "Load the configuration file from disk."
76 if self.file:
77 self.read(self.file)
78
79 class IdleUserConfParser(IdleConfParser):
80 """
81 IdleConfigParser specialised for user configuration handling.
82 """
83
84 def SetOption(self, section, option, value):
85 """Return True if option is added or changed to value, else False.
86
87 Add section if required. False means option already had value.
88 """
89 if self.has_option(section, option):
90 if self.get(section, option) == value:
91 return False
92 else:
93 self.set(section, option, value)
94 return True
95 else:
96 if not self.has_section(section):
97 self.add_section(section)
98 self.set(section, option, value)
99 return True
100
101 def RemoveOption(self, section, option):
102 """Return True if option is removed from section, else False.
103
104 False if either section does not exist or did not have option.
105 """
106 if self.has_section(section):
107 return self.remove_option(section, option)
108 return False
109
110 def AddSection(self, section):
111 "If section doesn't exist, add it."
112 if not self.has_section(section):
113 self.add_section(section)
114
115 def RemoveEmptySections(self):
116 "Remove any sections that have no options."
117 for section in self.sections():
118 if not self.GetOptionList(section):
119 self.remove_section(section)
120
121 def IsEmpty(self):
122 "Return True if no sections after removing empty sections."
123 self.RemoveEmptySections()
124 return not self.sections()
125
126 def Save(self):
127 """Update user configuration file.
128
129 If self not empty after removing empty sections, write the file
130 to disk. Otherwise, remove the file from disk if it exists.
131 """
132 fname = self.file
133 if fname and fname[0] != '#':
134 if not self.IsEmpty():
135 try:
136 cfgFile = open(fname, 'w')
137 except OSError:
138 os.unlink(fname)
139 cfgFile = open(fname, 'w')
140 with cfgFile:
141 self.write(cfgFile)
142 elif os.path.exists(self.file):
143 os.remove(self.file)
144
145 class IdleConf:
146 """Hold config parsers for all idle config files in singleton instance.
147
148 Default config files, self.defaultCfg --
149 for config_type in self.config_types:
150 (idle install dir)/config-{config-type}.def
151
152 User config files, self.userCfg --
153 for config_type in self.config_types:
154 (user home dir)/.idlerc/config-{config-type}.cfg
155 """
156 def __init__(self, _utest=False):
157 self.config_types = ('main', 'highlight', 'keys', 'extensions')
158 self.defaultCfg = {}
159 self.userCfg = {}
160 self.cfg = {} # TODO use to select userCfg vs defaultCfg
161 # self.blink_off_time = <first editor text>['insertofftime']
162 # See https:/bugs.python.org/issue4630, msg356516.
163
164 if not _utest:
165 self.CreateConfigHandlers()
166 self.LoadCfgFiles()
167
168 def CreateConfigHandlers(self):
169 "Populate default and user config parser dictionaries."
170 idledir = os.path.dirname(__file__)
171 self.userdir = userdir = '' if idlelib.testing else self.GetUserCfgDir()
172 for cfg_type in self.config_types:
173 self.defaultCfg[cfg_type] = IdleConfParser(
174 os.path.join(idledir, f'config-{cfg_type}.def'))
175 self.userCfg[cfg_type] = IdleUserConfParser(
176 os.path.join(userdir or '#', f'config-{cfg_type}.cfg'))
177
178 def GetUserCfgDir(self):
179 """Return a filesystem directory for storing user config files.
180
181 Creates it if required.
182 """
183 cfgDir = '.idlerc'
184 userDir = os.path.expanduser('~')
185 if userDir != '~': # expanduser() found user home dir
186 if not os.path.exists(userDir):
187 if not idlelib.testing:
188 warn = ('\n Warning: os.path.expanduser("~") points to\n ' +
189 userDir + ',\n but the path does not exist.')
190 try:
191 print(warn, file=sys.stderr)
192 except OSError:
193 pass
194 userDir = '~'
195 if userDir == "~": # still no path to home!
196 # traditionally IDLE has defaulted to os.getcwd(), is this adequate?
197 userDir = os.getcwd()
198 userDir = os.path.join(userDir, cfgDir)
199 if not os.path.exists(userDir):
200 try:
201 os.mkdir(userDir)
202 except OSError:
203 if not idlelib.testing:
204 warn = ('\n Warning: unable to create user config directory\n' +
205 userDir + '\n Check path and permissions.\n Exiting!\n')
206 try:
207 print(warn, file=sys.stderr)
208 except OSError:
209 pass
210 raise SystemExit
211 # TODO continue without userDIr instead of exit
212 return userDir
213
214 def GetOption(self, configType, section, option, default=None, type=None,
215 warn_on_default=True, raw=False):
216 """Return a value for configType section option, or default.
217
218 If type is not None, return a value of that type. Also pass raw
219 to the config parser. First try to return a valid value
220 (including type) from a user configuration. If that fails, try
221 the default configuration. If that fails, return default, with a
222 default of None.
223
224 Warn if either user or default configurations have an invalid value.
225 Warn if default is returned and warn_on_default is True.
226 """
227 try:
228 if self.userCfg[configType].has_option(section, option):
229 return self.userCfg[configType].Get(section, option,
230 type=type, raw=raw)
231 except ValueError:
232 warning = ('\n Warning: config.py - IdleConf.GetOption -\n'
233 ' invalid %r value for configuration option %r\n'
234 ' from section %r: %r' %
235 (type, option, section,
236 self.userCfg[configType].Get(section, option, raw=raw)))
237 _warn(warning, configType, section, option)
238 try:
239 if self.defaultCfg[configType].has_option(section,option):
240 return self.defaultCfg[configType].Get(
241 section, option, type=type, raw=raw)
242 except ValueError:
243 pass
244 #returning default, print warning
245 if warn_on_default:
246 warning = ('\n Warning: config.py - IdleConf.GetOption -\n'
247 ' problem retrieving configuration option %r\n'
248 ' from section %r.\n'
249 ' returning default value: %r' %
250 (option, section, default))
251 _warn(warning, configType, section, option)
252 return default
253
254 def SetOption(self, configType, section, option, value):
255 """Set section option to value in user config file."""
256 self.userCfg[configType].SetOption(section, option, value)
257
258 def GetSectionList(self, configSet, configType):
259 """Return sections for configSet configType configuration.
260
261 configSet must be either 'user' or 'default'
262 configType must be in self.config_types.
263 """
264 if not (configType in self.config_types):
265 raise InvalidConfigType('Invalid configType specified')
266 if configSet == 'user':
267 cfgParser = self.userCfg[configType]
268 elif configSet == 'default':
269 cfgParser=self.defaultCfg[configType]
270 else:
271 raise InvalidConfigSet('Invalid configSet specified')
272 return cfgParser.sections()
273
274 def GetHighlight(self, theme, element):
275 """Return dict of theme element highlight colors.
276
277 The keys are 'foreground' and 'background'. The values are
278 tkinter color strings for configuring backgrounds and tags.
279 """
280 cfg = ('default' if self.defaultCfg['highlight'].has_section(theme)
281 else 'user')
282 theme_dict = self.GetThemeDict(cfg, theme)
283 fore = theme_dict[element + '-foreground']
284 if element == 'cursor':
285 element = 'normal'
286 back = theme_dict[element + '-background']
287 return {"foreground": fore, "background": back}
288
289 def GetThemeDict(self, type, themeName):
290 """Return {option:value} dict for elements in themeName.
291
292 type - string, 'default' or 'user' theme type
293 themeName - string, theme name
294 Values are loaded over ultimate fallback defaults to guarantee
295 that all theme elements are present in a newly created theme.
296 """
297 if type == 'user':
298 cfgParser = self.userCfg['highlight']
299 elif type == 'default':
300 cfgParser = self.defaultCfg['highlight']
301 else:
302 raise InvalidTheme('Invalid theme type specified')
303 # Provide foreground and background colors for each theme
304 # element (other than cursor) even though some values are not
305 # yet used by idle, to allow for their use in the future.
306 # Default values are generally black and white.
307 # TODO copy theme from a class attribute.
308 theme ={'normal-foreground':'#000000',
309 'normal-background':'#ffffff',
310 'keyword-foreground':'#000000',
311 'keyword-background':'#ffffff',
312 'builtin-foreground':'#000000',
313 'builtin-background':'#ffffff',
314 'comment-foreground':'#000000',
315 'comment-background':'#ffffff',
316 'string-foreground':'#000000',
317 'string-background':'#ffffff',
318 'definition-foreground':'#000000',
319 'definition-background':'#ffffff',
320 'hilite-foreground':'#000000',
321 'hilite-background':'gray',
322 'break-foreground':'#ffffff',
323 'break-background':'#000000',
324 'hit-foreground':'#ffffff',
325 'hit-background':'#000000',
326 'error-foreground':'#ffffff',
327 'error-background':'#000000',
328 'context-foreground':'#000000',
329 'context-background':'#ffffff',
330 'linenumber-foreground':'#000000',
331 'linenumber-background':'#ffffff',
332 #cursor (only foreground can be set)
333 'cursor-foreground':'#000000',
334 #shell window
335 'stdout-foreground':'#000000',
336 'stdout-background':'#ffffff',
337 'stderr-foreground':'#000000',
338 'stderr-background':'#ffffff',
339 'console-foreground':'#000000',
340 'console-background':'#ffffff',
341 }
342 for element in theme:
343 if not (cfgParser.has_option(themeName, element) or
344 # Skip warning for new elements.
345 element.startswith(('context-', 'linenumber-'))):
346 # Print warning that will return a default color
347 warning = ('\n Warning: config.IdleConf.GetThemeDict'
348 ' -\n problem retrieving theme element %r'
349 '\n from theme %r.\n'
350 ' returning default color: %r' %
351 (element, themeName, theme[element]))
352 _warn(warning, 'highlight', themeName, element)
353 theme[element] = cfgParser.Get(
354 themeName, element, default=theme[element])
355 return theme
356
357 def CurrentTheme(self):
358 "Return the name of the currently active text color theme."
359 return self.current_colors_and_keys('Theme')
360
361 def CurrentKeys(self):
362 """Return the name of the currently active key set."""
363 return self.current_colors_and_keys('Keys')
364
365 def current_colors_and_keys(self, section):
366 """Return the currently active name for Theme or Keys section.
367
368 idlelib.config-main.def ('default') includes these sections
369
370 [Theme]
371 default= 1
372 name= IDLE Classic
373 name2=
374
375 [Keys]
376 default= 1
377 name=
378 name2=
379
380 Item 'name2', is used for built-in ('default') themes and keys
381 added after 2015 Oct 1 and 2016 July 1. This kludge is needed
382 because setting 'name' to a builtin not defined in older IDLEs
383 to display multiple error messages or quit.
384 See https://bugs.python.org/issue25313.
385 When default = True, 'name2' takes precedence over 'name',
386 while older IDLEs will just use name. When default = False,
387 'name2' may still be set, but it is ignored.
388 """
389 cfgname = 'highlight' if section == 'Theme' else 'keys'
390 default = self.GetOption('main', section, 'default',
391 type='bool', default=True)
392 name = ''
393 if default:
394 name = self.GetOption('main', section, 'name2', default='')
395 if not name:
396 name = self.GetOption('main', section, 'name', default='')
397 if name:
398 source = self.defaultCfg if default else self.userCfg
399 if source[cfgname].has_section(name):
400 return name
401 return "IDLE Classic" if section == 'Theme' else self.default_keys()
402
403 @staticmethod
404 def default_keys():
405 if sys.platform[:3] == 'win':
406 return 'IDLE Classic Windows'
407 elif sys.platform == 'darwin':
408 return 'IDLE Classic OSX'
409 else:
410 return 'IDLE Modern Unix'
411
412 def GetExtensions(self, active_only=True,
413 editor_only=False, shell_only=False):
414 """Return extensions in default and user config-extensions files.
415
416 If active_only True, only return active (enabled) extensions
417 and optionally only editor or shell extensions.
418 If active_only False, return all extensions.
419 """
420 extns = self.RemoveKeyBindNames(
421 self.GetSectionList('default', 'extensions'))
422 userExtns = self.RemoveKeyBindNames(
423 self.GetSectionList('user', 'extensions'))
424 for extn in userExtns:
425 if extn not in extns: #user has added own extension
426 extns.append(extn)
427 for extn in ('AutoComplete','CodeContext',
428 'FormatParagraph','ParenMatch'):
429 extns.remove(extn)
430 # specific exclusions because we are storing config for mainlined old
431 # extensions in config-extensions.def for backward compatibility
432 if active_only:
433 activeExtns = []
434 for extn in extns:
435 if self.GetOption('extensions', extn, 'enable', default=True,
436 type='bool'):
437 #the extension is enabled
438 if editor_only or shell_only: # TODO both True contradict
439 if editor_only:
440 option = "enable_editor"
441 else:
442 option = "enable_shell"
443 if self.GetOption('extensions', extn,option,
444 default=True, type='bool',
445 warn_on_default=False):
446 activeExtns.append(extn)
447 else:
448 activeExtns.append(extn)
449 return activeExtns
450 else:
451 return extns
452
453 def RemoveKeyBindNames(self, extnNameList):
454 "Return extnNameList with keybinding section names removed."
455 return [n for n in extnNameList if not n.endswith(('_bindings', '_cfgBindings'))]
456
457 def GetExtnNameForEvent(self, virtualEvent):
458 """Return the name of the extension binding virtualEvent, or None.
459
460 virtualEvent - string, name of the virtual event to test for,
461 without the enclosing '<< >>'
462 """
463 extName = None
464 vEvent = '<<' + virtualEvent + '>>'
465 for extn in self.GetExtensions(active_only=0):
466 for event in self.GetExtensionKeys(extn):
467 if event == vEvent:
468 extName = extn # TODO return here?
469 return extName
470
471 def GetExtensionKeys(self, extensionName):
472 """Return dict: {configurable extensionName event : active keybinding}.
473
474 Events come from default config extension_cfgBindings section.
475 Keybindings come from GetCurrentKeySet() active key dict,
476 where previously used bindings are disabled.
477 """
478 keysName = extensionName + '_cfgBindings'
479 activeKeys = self.GetCurrentKeySet()
480 extKeys = {}
481 if self.defaultCfg['extensions'].has_section(keysName):
482 eventNames = self.defaultCfg['extensions'].GetOptionList(keysName)
483 for eventName in eventNames:
484 event = '<<' + eventName + '>>'
485 binding = activeKeys[event]
486 extKeys[event] = binding
487 return extKeys
488
489 def __GetRawExtensionKeys(self,extensionName):
490 """Return dict {configurable extensionName event : keybinding list}.
491
492 Events come from default config extension_cfgBindings section.
493 Keybindings list come from the splitting of GetOption, which
494 tries user config before default config.
495 """
496 keysName = extensionName+'_cfgBindings'
497 extKeys = {}
498 if self.defaultCfg['extensions'].has_section(keysName):
499 eventNames = self.defaultCfg['extensions'].GetOptionList(keysName)
500 for eventName in eventNames:
501 binding = self.GetOption(
502 'extensions', keysName, eventName, default='').split()
503 event = '<<' + eventName + '>>'
504 extKeys[event] = binding
505 return extKeys
506
507 def GetExtensionBindings(self, extensionName):
508 """Return dict {extensionName event : active or defined keybinding}.
509
510 Augment self.GetExtensionKeys(extensionName) with mapping of non-
511 configurable events (from default config) to GetOption splits,
512 as in self.__GetRawExtensionKeys.
513 """
514 bindsName = extensionName + '_bindings'
515 extBinds = self.GetExtensionKeys(extensionName)
516 #add the non-configurable bindings
517 if self.defaultCfg['extensions'].has_section(bindsName):
518 eventNames = self.defaultCfg['extensions'].GetOptionList(bindsName)
519 for eventName in eventNames:
520 binding = self.GetOption(
521 'extensions', bindsName, eventName, default='').split()
522 event = '<<' + eventName + '>>'
523 extBinds[event] = binding
524
525 return extBinds
526
527 def GetKeyBinding(self, keySetName, eventStr):
528 """Return the keybinding list for keySetName eventStr.
529
530 keySetName - name of key binding set (config-keys section).
531 eventStr - virtual event, including brackets, as in '<<event>>'.
532 """
533 eventName = eventStr[2:-2] #trim off the angle brackets
534 binding = self.GetOption('keys', keySetName, eventName, default='',
535 warn_on_default=False).split()
536 return binding
537
538 def GetCurrentKeySet(self):
539 "Return CurrentKeys with 'darwin' modifications."
540 result = self.GetKeySet(self.CurrentKeys())
541
542 if sys.platform == "darwin":
543 # macOS (OS X) Tk variants do not support the "Alt"
544 # keyboard modifier. Replace it with "Option".
545 # TODO (Ned?): the "Option" modifier does not work properly
546 # for Cocoa Tk and XQuartz Tk so we should not use it
547 # in the default 'OSX' keyset.
548 for k, v in result.items():
549 v2 = [ x.replace('<Alt-', '<Option-') for x in v ]
550 if v != v2:
551 result[k] = v2
552
553 return result
554
555 def GetKeySet(self, keySetName):
556 """Return event-key dict for keySetName core plus active extensions.
557
558 If a binding defined in an extension is already in use, the
559 extension binding is disabled by being set to ''
560 """
561 keySet = self.GetCoreKeys(keySetName)
562 activeExtns = self.GetExtensions(active_only=1)
563 for extn in activeExtns:
564 extKeys = self.__GetRawExtensionKeys(extn)
565 if extKeys: #the extension defines keybindings
566 for event in extKeys:
567 if extKeys[event] in keySet.values():
568 #the binding is already in use
569 extKeys[event] = '' #disable this binding
570 keySet[event] = extKeys[event] #add binding
571 return keySet
572
573 def IsCoreBinding(self, virtualEvent):
574 """Return True if the virtual event is one of the core idle key events.
575
576 virtualEvent - string, name of the virtual event to test for,
577 without the enclosing '<< >>'
578 """
579 return ('<<'+virtualEvent+'>>') in self.GetCoreKeys()
580
581 # TODO make keyBindins a file or class attribute used for test above
582 # and copied in function below.
583
584 former_extension_events = { # Those with user-configurable keys.
585 '<<force-open-completions>>', '<<expand-word>>',
586 '<<force-open-calltip>>', '<<flash-paren>>', '<<format-paragraph>>',
587 '<<run-module>>', '<<check-module>>', '<<zoom-height>>',
588 '<<run-custom>>',
589 }
590
591 def GetCoreKeys(self, keySetName=None):
592 """Return dict of core virtual-key keybindings for keySetName.
593
594 The default keySetName None corresponds to the keyBindings base
595 dict. If keySetName is not None, bindings from the config
596 file(s) are loaded _over_ these defaults, so if there is a
597 problem getting any core binding there will be an 'ultimate last
598 resort fallback' to the CUA-ish bindings defined here.
599 """
600 keyBindings={
601 '<<copy>>': ['<Control-c>', '<Control-C>'],
602 '<<cut>>': ['<Control-x>', '<Control-X>'],
603 '<<paste>>': ['<Control-v>', '<Control-V>'],
604 '<<beginning-of-line>>': ['<Control-a>', '<Home>'],
605 '<<center-insert>>': ['<Control-l>'],
606 '<<close-all-windows>>': ['<Control-q>'],
607 '<<close-window>>': ['<Alt-F4>'],
608 '<<do-nothing>>': ['<Control-x>'],
609 '<<end-of-file>>': ['<Control-d>'],
610 '<<python-docs>>': ['<F1>'],
611 '<<python-context-help>>': ['<Shift-F1>'],
612 '<<history-next>>': ['<Alt-n>'],
613 '<<history-previous>>': ['<Alt-p>'],
614 '<<interrupt-execution>>': ['<Control-c>'],
615 '<<view-restart>>': ['<F6>'],
616 '<<restart-shell>>': ['<Control-F6>'],
617 '<<open-class-browser>>': ['<Alt-c>'],
618 '<<open-module>>': ['<Alt-m>'],
619 '<<open-new-window>>': ['<Control-n>'],
620 '<<open-window-from-file>>': ['<Control-o>'],
621 '<<plain-newline-and-indent>>': ['<Control-j>'],
622 '<<print-window>>': ['<Control-p>'],
623 '<<redo>>': ['<Control-y>'],
624 '<<remove-selection>>': ['<Escape>'],
625 '<<save-copy-of-window-as-file>>': ['<Alt-Shift-S>'],
626 '<<save-window-as-file>>': ['<Alt-s>'],
627 '<<save-window>>': ['<Control-s>'],
628 '<<select-all>>': ['<Alt-a>'],
629 '<<toggle-auto-coloring>>': ['<Control-slash>'],
630 '<<undo>>': ['<Control-z>'],
631 '<<find-again>>': ['<Control-g>', '<F3>'],
632 '<<find-in-files>>': ['<Alt-F3>'],
633 '<<find-selection>>': ['<Control-F3>'],
634 '<<find>>': ['<Control-f>'],
635 '<<replace>>': ['<Control-h>'],
636 '<<goto-line>>': ['<Alt-g>'],
637 '<<smart-backspace>>': ['<Key-BackSpace>'],
638 '<<newline-and-indent>>': ['<Key-Return>', '<Key-KP_Enter>'],
639 '<<smart-indent>>': ['<Key-Tab>'],
640 '<<indent-region>>': ['<Control-Key-bracketright>'],
641 '<<dedent-region>>': ['<Control-Key-bracketleft>'],
642 '<<comment-region>>': ['<Alt-Key-3>'],
643 '<<uncomment-region>>': ['<Alt-Key-4>'],
644 '<<tabify-region>>': ['<Alt-Key-5>'],
645 '<<untabify-region>>': ['<Alt-Key-6>'],
646 '<<toggle-tabs>>': ['<Alt-Key-t>'],
647 '<<change-indentwidth>>': ['<Alt-Key-u>'],
648 '<<del-word-left>>': ['<Control-Key-BackSpace>'],
649 '<<del-word-right>>': ['<Control-Key-Delete>'],
650 '<<force-open-completions>>': ['<Control-Key-space>'],
651 '<<expand-word>>': ['<Alt-Key-slash>'],
652 '<<force-open-calltip>>': ['<Control-Key-backslash>'],
653 '<<flash-paren>>': ['<Control-Key-0>'],
654 '<<format-paragraph>>': ['<Alt-Key-q>'],
655 '<<run-module>>': ['<Key-F5>'],
656 '<<run-custom>>': ['<Shift-Key-F5>'],
657 '<<check-module>>': ['<Alt-Key-x>'],
658 '<<zoom-height>>': ['<Alt-Key-2>'],
659 }
660
661 if keySetName:
662 if not (self.userCfg['keys'].has_section(keySetName) or
663 self.defaultCfg['keys'].has_section(keySetName)):
664 warning = (
665 '\n Warning: config.py - IdleConf.GetCoreKeys -\n'
666 ' key set %r is not defined, using default bindings.' %
667 (keySetName,)
668 )
669 _warn(warning, 'keys', keySetName)
670 else:
671 for event in keyBindings:
672 binding = self.GetKeyBinding(keySetName, event)
673 if binding:
674 keyBindings[event] = binding
675 # Otherwise return default in keyBindings.
676 elif event not in self.former_extension_events:
677 warning = (
678 '\n Warning: config.py - IdleConf.GetCoreKeys -\n'
679 ' problem retrieving key binding for event %r\n'
680 ' from key set %r.\n'
681 ' returning default value: %r' %
682 (event, keySetName, keyBindings[event])
683 )
684 _warn(warning, 'keys', keySetName, event)
685 return keyBindings
686
687 def GetExtraHelpSourceList(self, configSet):
688 """Return list of extra help sources from a given configSet.
689
690 Valid configSets are 'user' or 'default'. Return a list of tuples of
691 the form (menu_item , path_to_help_file , option), or return the empty
692 list. 'option' is the sequence number of the help resource. 'option'
693 values determine the position of the menu items on the Help menu,
694 therefore the returned list must be sorted by 'option'.
695
696 """
697 helpSources = []
698 if configSet == 'user':
699 cfgParser = self.userCfg['main']
700 elif configSet == 'default':
701 cfgParser = self.defaultCfg['main']
702 else:
703 raise InvalidConfigSet('Invalid configSet specified')
704 options=cfgParser.GetOptionList('HelpFiles')
705 for option in options:
706 value=cfgParser.Get('HelpFiles', option, default=';')
707 if value.find(';') == -1: #malformed config entry with no ';'
708 menuItem = '' #make these empty
709 helpPath = '' #so value won't be added to list
710 else: #config entry contains ';' as expected
711 value=value.split(';')
712 menuItem=value[0].strip()
713 helpPath=value[1].strip()
714 if menuItem and helpPath: #neither are empty strings
715 helpSources.append( (menuItem,helpPath,option) )
716 helpSources.sort(key=lambda x: x[2])
717 return helpSources
718
719 def GetAllExtraHelpSourcesList(self):
720 """Return a list of the details of all additional help sources.
721
722 Tuples in the list are those of GetExtraHelpSourceList.
723 """
724 allHelpSources = (self.GetExtraHelpSourceList('default') +
725 self.GetExtraHelpSourceList('user') )
726 return allHelpSources
727
728 def GetFont(self, root, configType, section):
729 """Retrieve a font from configuration (font, font-size, font-bold)
730 Intercept the special value 'TkFixedFont' and substitute
731 the actual font, factoring in some tweaks if needed for
732 appearance sakes.
733
734 The 'root' parameter can normally be any valid Tkinter widget.
735
736 Return a tuple (family, size, weight) suitable for passing
737 to tkinter.Font
738 """
739 family = self.GetOption(configType, section, 'font', default='courier')
740 size = self.GetOption(configType, section, 'font-size', type='int',
741 default='10')
742 bold = self.GetOption(configType, section, 'font-bold', default=0,
743 type='bool')
744 if (family == 'TkFixedFont'):
745 f = Font(name='TkFixedFont', exists=True, root=root)
746 actualFont = Font.actual(f)
747 family = actualFont['family']
748 size = actualFont['size']
749 if size <= 0:
750 size = 10 # if font in pixels, ignore actual size
751 bold = actualFont['weight'] == 'bold'
752 return (family, size, 'bold' if bold else 'normal')
753
754 def LoadCfgFiles(self):
755 "Load all configuration files."
756 for key in self.defaultCfg:
757 self.defaultCfg[key].Load()
758 self.userCfg[key].Load() #same keys
759
760 def SaveUserCfgFiles(self):
761 "Write all loaded user configuration files to disk."
762 for key in self.userCfg:
763 self.userCfg[key].Save()
764
765
766 idleConf = IdleConf()
767
768 _warned = set()
769 def _warn(msg, *key):
770 key = (msg,) + key
771 if key not in _warned:
772 try:
773 print(msg, file=sys.stderr)
774 except OSError:
775 pass
776 _warned.add(key)
777
778
779 class ConfigChanges(dict):
780 """Manage a user's proposed configuration option changes.
781
782 Names used across multiple methods:
783 page -- one of the 4 top-level dicts representing a
784 .idlerc/config-x.cfg file.
785 config_type -- name of a page.
786 section -- a section within a page/file.
787 option -- name of an option within a section.
788 value -- value for the option.
789
790 Methods
791 add_option: Add option and value to changes.
792 save_option: Save option and value to config parser.
793 save_all: Save all the changes to the config parser and file.
794 delete_section: If section exists,
795 delete from changes, userCfg, and file.
796 clear: Clear all changes by clearing each page.
797 """
798 def __init__(self):
799 "Create a page for each configuration file"
800 self.pages = [] # List of unhashable dicts.
801 for config_type in idleConf.config_types:
802 self[config_type] = {}
803 self.pages.append(self[config_type])
804
805 def add_option(self, config_type, section, item, value):
806 "Add item/value pair for config_type and section."
807 page = self[config_type]
808 value = str(value) # Make sure we use a string.
809 if section not in page:
810 page[section] = {}
811 page[section][item] = value
812
813 @staticmethod
814 def save_option(config_type, section, item, value):
815 """Return True if the configuration value was added or changed.
816
817 Helper for save_all.
818 """
819 if idleConf.defaultCfg[config_type].has_option(section, item):
820 if idleConf.defaultCfg[config_type].Get(section, item) == value:
821 # The setting equals a default setting, remove it from user cfg.
822 return idleConf.userCfg[config_type].RemoveOption(section, item)
823 # If we got here, set the option.
824 return idleConf.userCfg[config_type].SetOption(section, item, value)
825
826 def save_all(self):
827 """Save configuration changes to the user config file.
828
829 Clear self in preparation for additional changes.
830 Return changed for testing.
831 """
832 idleConf.userCfg['main'].Save()
833
834 changed = False
835 for config_type in self:
836 cfg_type_changed = False
837 page = self[config_type]
838 for section in page:
839 if section == 'HelpFiles': # Remove it for replacement.
840 idleConf.userCfg['main'].remove_section('HelpFiles')
841 cfg_type_changed = True
842 for item, value in page[section].items():
843 if self.save_option(config_type, section, item, value):
844 cfg_type_changed = True
845 if cfg_type_changed:
846 idleConf.userCfg[config_type].Save()
847 changed = True
848 for config_type in ['keys', 'highlight']:
849 # Save these even if unchanged!
850 idleConf.userCfg[config_type].Save()
851 self.clear()
852 # ConfigDialog caller must add the following call
853 # self.save_all_changed_extensions() # Uses a different mechanism.
854 return changed
855
856 def delete_section(self, config_type, section):
857 """Delete a section from self, userCfg, and file.
858
859 Used to delete custom themes and keysets.
860 """
861 if section in self[config_type]:
862 del self[config_type][section]
863 configpage = idleConf.userCfg[config_type]
864 configpage.remove_section(section)
865 configpage.Save()
866
867 def clear(self):
868 """Clear all 4 pages.
869
870 Called in save_all after saving to idleConf.
871 XXX Mark window *title* when there are changes; unmark here.
872 """
873 for page in self.pages:
874 page.clear()
875
876
877 # TODO Revise test output, write expanded unittest
878 def _dump(): # htest # (not really, but ignore in coverage)
879 from zlib import crc32
880 line, crc = 0, 0
881
882 def sprint(obj):
883 global line, crc
884 txt = str(obj)
885 line += 1
886 crc = crc32(txt.encode(encoding='utf-8'), crc)
887 print(txt)
888 #print('***', line, crc, '***') # Uncomment for diagnosis.
889
890 def dumpCfg(cfg):
891 print('\n', cfg, '\n') # Cfg has variable '0xnnnnnnnn' address.
892 for key in sorted(cfg.keys()):
893 sections = cfg[key].sections()
894 sprint(key)
895 sprint(sections)
896 for section in sections:
897 options = cfg[key].options(section)
898 sprint(section)
899 sprint(options)
900 for option in options:
901 sprint(option + ' = ' + cfg[key].Get(section, option))
902
903 dumpCfg(idleConf.defaultCfg)
904 dumpCfg(idleConf.userCfg)
905 print('\nlines = ', line, ', crc = ', crc, sep='')
906
907 if __name__ == '__main__':
908 from unittest import main
909 main('idlelib.idle_test.test_config', verbosity=2, exit=False)
910
911 # Run revised _dump() as htest?