mirror of
https://github.com/python/cpython.git
synced 2024-11-28 12:31:14 +08:00
393 lines
15 KiB
Python
393 lines
15 KiB
Python
"""
|
|
Dialogs that query users and verify the answer before accepting.
|
|
|
|
Query is the generic base class for a popup dialog.
|
|
The user must either enter a valid answer or close the dialog.
|
|
Entries are validated when <Return> is entered or [Ok] is clicked.
|
|
Entries are ignored when [Cancel] or [X] are clicked.
|
|
The 'return value' is .result set to either a valid answer or None.
|
|
|
|
Subclass SectionName gets a name for a new config file section.
|
|
Configdialog uses it for new highlight theme and keybinding set names.
|
|
Subclass ModuleName gets a name for File => Open Module.
|
|
Subclass HelpSource gets menu item and path for additions to Help menu.
|
|
"""
|
|
# Query and Section name result from splitting GetCfgSectionNameDialog
|
|
# of configSectionNameDialog.py (temporarily config_sec.py) into
|
|
# generic and specific parts. 3.6 only, July 2016.
|
|
# ModuleName.entry_ok came from editor.EditorWindow.load_module.
|
|
# HelpSource was extracted from configHelpSourceEdit.py (temporarily
|
|
# config_help.py), with darwin code moved from ok to path_ok.
|
|
|
|
import importlib.util, importlib.abc
|
|
import os
|
|
import shlex
|
|
from sys import executable, platform # Platform is set for one test.
|
|
|
|
from tkinter import Toplevel, StringVar, BooleanVar, W, E, S
|
|
from tkinter.ttk import Frame, Button, Entry, Label, Checkbutton
|
|
from tkinter import filedialog
|
|
from tkinter.font import Font
|
|
from tkinter.simpledialog import _setup_dialog
|
|
|
|
class Query(Toplevel):
|
|
"""Base class for getting verified answer from a user.
|
|
|
|
For this base class, accept any non-blank string.
|
|
"""
|
|
def __init__(self, parent, title, message, *, text0='', used_names={},
|
|
_htest=False, _utest=False):
|
|
"""Create modal popup, return when destroyed.
|
|
|
|
Additional subclass init must be done before this unless
|
|
_utest=True is passed to suppress wait_window().
|
|
|
|
title - string, title of popup dialog
|
|
message - string, informational message to display
|
|
text0 - initial value for entry
|
|
used_names - names already in use
|
|
_htest - bool, change box location when running htest
|
|
_utest - bool, leave window hidden and not modal
|
|
"""
|
|
self.parent = parent # Needed for Font call.
|
|
self.message = message
|
|
self.text0 = text0
|
|
self.used_names = used_names
|
|
|
|
Toplevel.__init__(self, parent)
|
|
self.withdraw() # Hide while configuring, especially geometry.
|
|
self.title(title)
|
|
self.transient(parent)
|
|
if not _utest: # Otherwise fail when directly run unittest.
|
|
self.grab_set()
|
|
|
|
_setup_dialog(self)
|
|
if self._windowingsystem == 'aqua':
|
|
self.bind("<Command-.>", self.cancel)
|
|
self.bind('<Key-Escape>', self.cancel)
|
|
self.protocol("WM_DELETE_WINDOW", self.cancel)
|
|
self.bind('<Key-Return>', self.ok)
|
|
self.bind("<KP_Enter>", self.ok)
|
|
|
|
self.create_widgets()
|
|
self.update_idletasks() # Need here for winfo_reqwidth below.
|
|
self.geometry( # Center dialog over parent (or below htest box).
|
|
"+%d+%d" % (
|
|
parent.winfo_rootx() +
|
|
(parent.winfo_width()/2 - self.winfo_reqwidth()/2),
|
|
parent.winfo_rooty() +
|
|
((parent.winfo_height()/2 - self.winfo_reqheight()/2)
|
|
if not _htest else 150)
|
|
) )
|
|
self.resizable(height=False, width=False)
|
|
|
|
if not _utest:
|
|
self.deiconify() # Unhide now that geometry set.
|
|
self.entry.focus_set()
|
|
self.wait_window()
|
|
|
|
def create_widgets(self, ok_text='OK'): # Do not replace.
|
|
"""Create entry (rows, extras, buttons.
|
|
|
|
Entry stuff on rows 0-2, spanning cols 0-2.
|
|
Buttons on row 99, cols 1, 2.
|
|
"""
|
|
# Bind to self the widgets needed for entry_ok or unittest.
|
|
self.frame = frame = Frame(self, padding=10)
|
|
frame.grid(column=0, row=0, sticky='news')
|
|
frame.grid_columnconfigure(0, weight=1)
|
|
|
|
entrylabel = Label(frame, anchor='w', justify='left',
|
|
text=self.message)
|
|
self.entryvar = StringVar(self, self.text0)
|
|
self.entry = Entry(frame, width=30, textvariable=self.entryvar)
|
|
self.error_font = Font(name='TkCaptionFont',
|
|
exists=True, root=self.parent)
|
|
self.entry_error = Label(frame, text=' ', foreground='red',
|
|
font=self.error_font)
|
|
# Display or blank error by setting ['text'] =.
|
|
entrylabel.grid(column=0, row=0, columnspan=3, padx=5, sticky=W)
|
|
self.entry.grid(column=0, row=1, columnspan=3, padx=5, sticky=W+E,
|
|
pady=[10,0])
|
|
self.entry_error.grid(column=0, row=2, columnspan=3, padx=5,
|
|
sticky=W+E)
|
|
|
|
self.create_extra()
|
|
|
|
self.button_ok = Button(
|
|
frame, text=ok_text, default='active', command=self.ok)
|
|
self.button_cancel = Button(
|
|
frame, text='Cancel', command=self.cancel)
|
|
|
|
self.button_ok.grid(column=1, row=99, padx=5)
|
|
self.button_cancel.grid(column=2, row=99, padx=5)
|
|
|
|
def create_extra(self): pass # Override to add widgets.
|
|
|
|
def showerror(self, message, widget=None):
|
|
#self.bell(displayof=self)
|
|
(widget or self.entry_error)['text'] = 'ERROR: ' + message
|
|
|
|
def entry_ok(self): # Example: usually replace.
|
|
"Return non-blank entry or None."
|
|
entry = self.entry.get().strip()
|
|
if not entry:
|
|
self.showerror('blank line.')
|
|
return None
|
|
return entry
|
|
|
|
def ok(self, event=None): # Do not replace.
|
|
'''If entry is valid, bind it to 'result' and destroy tk widget.
|
|
|
|
Otherwise leave dialog open for user to correct entry or cancel.
|
|
'''
|
|
self.entry_error['text'] = ''
|
|
entry = self.entry_ok()
|
|
if entry is not None:
|
|
self.result = entry
|
|
self.destroy()
|
|
else:
|
|
# [Ok] moves focus. (<Return> does not.) Move it back.
|
|
self.entry.focus_set()
|
|
|
|
def cancel(self, event=None): # Do not replace.
|
|
"Set dialog result to None and destroy tk widget."
|
|
self.result = None
|
|
self.destroy()
|
|
|
|
def destroy(self):
|
|
self.grab_release()
|
|
super().destroy()
|
|
|
|
|
|
class SectionName(Query):
|
|
"Get a name for a config file section name."
|
|
# Used in ConfigDialog.GetNewKeysName, .GetNewThemeName (837)
|
|
|
|
def __init__(self, parent, title, message, used_names,
|
|
*, _htest=False, _utest=False):
|
|
super().__init__(parent, title, message, used_names=used_names,
|
|
_htest=_htest, _utest=_utest)
|
|
|
|
def entry_ok(self):
|
|
"Return sensible ConfigParser section name or None."
|
|
name = self.entry.get().strip()
|
|
if not name:
|
|
self.showerror('no name specified.')
|
|
return None
|
|
elif len(name)>30:
|
|
self.showerror('name is longer than 30 characters.')
|
|
return None
|
|
elif name in self.used_names:
|
|
self.showerror('name is already in use.')
|
|
return None
|
|
return name
|
|
|
|
|
|
class ModuleName(Query):
|
|
"Get a module name for Open Module menu entry."
|
|
# Used in open_module (editor.EditorWindow until move to iobinding).
|
|
|
|
def __init__(self, parent, title, message, text0,
|
|
*, _htest=False, _utest=False):
|
|
super().__init__(parent, title, message, text0=text0,
|
|
_htest=_htest, _utest=_utest)
|
|
|
|
def entry_ok(self):
|
|
"Return entered module name as file path or None."
|
|
name = self.entry.get().strip()
|
|
if not name:
|
|
self.showerror('no name specified.')
|
|
return None
|
|
# XXX Ought to insert current file's directory in front of path.
|
|
try:
|
|
spec = importlib.util.find_spec(name)
|
|
except (ValueError, ImportError) as msg:
|
|
self.showerror(str(msg))
|
|
return None
|
|
if spec is None:
|
|
self.showerror("module not found.")
|
|
return None
|
|
if not isinstance(spec.loader, importlib.abc.SourceLoader):
|
|
self.showerror("not a source-based module.")
|
|
return None
|
|
try:
|
|
file_path = spec.loader.get_filename(name)
|
|
except AttributeError:
|
|
self.showerror("loader does not support get_filename.")
|
|
return None
|
|
except ImportError:
|
|
# Some special modules require this (e.g. os.path)
|
|
try:
|
|
file_path = spec.loader.get_filename()
|
|
except TypeError:
|
|
self.showerror("loader failed to get filename.")
|
|
return None
|
|
return file_path
|
|
|
|
|
|
class Goto(Query):
|
|
"Get a positive line number for editor Go To Line."
|
|
# Used in editor.EditorWindow.goto_line_event.
|
|
|
|
def entry_ok(self):
|
|
try:
|
|
lineno = int(self.entry.get())
|
|
except ValueError:
|
|
self.showerror('not a base 10 integer.')
|
|
return None
|
|
if lineno <= 0:
|
|
self.showerror('not a positive integer.')
|
|
return None
|
|
return lineno
|
|
|
|
|
|
class HelpSource(Query):
|
|
"Get menu name and help source for Help menu."
|
|
# Used in ConfigDialog.HelpListItemAdd/Edit, (941/9)
|
|
|
|
def __init__(self, parent, title, *, menuitem='', filepath='',
|
|
used_names={}, _htest=False, _utest=False):
|
|
"""Get menu entry and url/local file for Additional Help.
|
|
|
|
User enters a name for the Help resource and a web url or file
|
|
name. The user can browse for the file.
|
|
"""
|
|
self.filepath = filepath
|
|
message = 'Name for item on Help menu:'
|
|
super().__init__(
|
|
parent, title, message, text0=menuitem,
|
|
used_names=used_names, _htest=_htest, _utest=_utest)
|
|
|
|
def create_extra(self):
|
|
"Add path widjets to rows 10-12."
|
|
frame = self.frame
|
|
pathlabel = Label(frame, anchor='w', justify='left',
|
|
text='Help File Path: Enter URL or browse for file')
|
|
self.pathvar = StringVar(self, self.filepath)
|
|
self.path = Entry(frame, textvariable=self.pathvar, width=40)
|
|
browse = Button(frame, text='Browse', width=8,
|
|
command=self.browse_file)
|
|
self.path_error = Label(frame, text=' ', foreground='red',
|
|
font=self.error_font)
|
|
|
|
pathlabel.grid(column=0, row=10, columnspan=3, padx=5, pady=[10,0],
|
|
sticky=W)
|
|
self.path.grid(column=0, row=11, columnspan=2, padx=5, sticky=W+E,
|
|
pady=[10,0])
|
|
browse.grid(column=2, row=11, padx=5, sticky=W+S)
|
|
self.path_error.grid(column=0, row=12, columnspan=3, padx=5,
|
|
sticky=W+E)
|
|
|
|
def askfilename(self, filetypes, initdir, initfile): # htest #
|
|
# Extracted from browse_file so can mock for unittests.
|
|
# Cannot unittest as cannot simulate button clicks.
|
|
# Test by running htest, such as by running this file.
|
|
return filedialog.Open(parent=self, filetypes=filetypes)\
|
|
.show(initialdir=initdir, initialfile=initfile)
|
|
|
|
def browse_file(self):
|
|
filetypes = [
|
|
("HTML Files", "*.htm *.html", "TEXT"),
|
|
("PDF Files", "*.pdf", "TEXT"),
|
|
("Windows Help Files", "*.chm"),
|
|
("Text Files", "*.txt", "TEXT"),
|
|
("All Files", "*")]
|
|
path = self.pathvar.get()
|
|
if path:
|
|
dir, base = os.path.split(path)
|
|
else:
|
|
base = None
|
|
if platform[:3] == 'win':
|
|
dir = os.path.join(os.path.dirname(executable), 'Doc')
|
|
if not os.path.isdir(dir):
|
|
dir = os.getcwd()
|
|
else:
|
|
dir = os.getcwd()
|
|
file = self.askfilename(filetypes, dir, base)
|
|
if file:
|
|
self.pathvar.set(file)
|
|
|
|
item_ok = SectionName.entry_ok # localize for test override
|
|
|
|
def path_ok(self):
|
|
"Simple validity check for menu file path"
|
|
path = self.path.get().strip()
|
|
if not path: #no path specified
|
|
self.showerror('no help file path specified.', self.path_error)
|
|
return None
|
|
elif not path.startswith(('www.', 'http')):
|
|
if path[:5] == 'file:':
|
|
path = path[5:]
|
|
if not os.path.exists(path):
|
|
self.showerror('help file path does not exist.',
|
|
self.path_error)
|
|
return None
|
|
if platform == 'darwin': # for Mac Safari
|
|
path = "file://" + path
|
|
return path
|
|
|
|
def entry_ok(self):
|
|
"Return apparently valid (name, path) or None"
|
|
self.path_error['text'] = ''
|
|
name = self.item_ok()
|
|
path = self.path_ok()
|
|
return None if name is None or path is None else (name, path)
|
|
|
|
class CustomRun(Query):
|
|
"""Get settings for custom run of module.
|
|
|
|
1. Command line arguments to extend sys.argv.
|
|
2. Whether to restart Shell or not.
|
|
"""
|
|
# Used in runscript.run_custom_event
|
|
|
|
def __init__(self, parent, title, *, cli_args=[],
|
|
_htest=False, _utest=False):
|
|
"""cli_args is a list of strings.
|
|
|
|
The list is assigned to the default Entry StringVar.
|
|
The strings are displayed joined by ' ' for display.
|
|
"""
|
|
message = 'Command Line Arguments for sys.argv:'
|
|
super().__init__(
|
|
parent, title, message, text0=cli_args,
|
|
_htest=_htest, _utest=_utest)
|
|
|
|
def create_extra(self):
|
|
"Add run mode on rows 10-12."
|
|
frame = self.frame
|
|
self.restartvar = BooleanVar(self, value=True)
|
|
restart = Checkbutton(frame, variable=self.restartvar, onvalue=True,
|
|
offvalue=False, text='Restart shell')
|
|
self.args_error = Label(frame, text=' ', foreground='red',
|
|
font=self.error_font)
|
|
|
|
restart.grid(column=0, row=10, columnspan=3, padx=5, sticky='w')
|
|
self.args_error.grid(column=0, row=12, columnspan=3, padx=5,
|
|
sticky='we')
|
|
|
|
def cli_args_ok(self):
|
|
"Return command line arg list or None if error."
|
|
cli_string = self.entry.get().strip()
|
|
try:
|
|
cli_args = shlex.split(cli_string, posix=True)
|
|
except ValueError as err:
|
|
self.showerror(str(err))
|
|
return None
|
|
return cli_args
|
|
|
|
def entry_ok(self):
|
|
"Return apparently valid (cli_args, restart) or None."
|
|
cli_args = self.cli_args_ok()
|
|
restart = self.restartvar.get()
|
|
return None if cli_args is None else (cli_args, restart)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
from unittest import main
|
|
main('idlelib.idle_test.test_query', verbosity=2, exit=False)
|
|
|
|
from idlelib.idle_test.htest import run
|
|
run(Query, HelpSource, CustomRun)
|