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v0.8.1
v0.8.1
https://github.com/python/cpython
Revision cd0dc16fdc60860bb69be020518234c0e897a1fb authored by Georg Brandl on 09 July 2011, 06:56:21 UTC, committed by Georg Brandl on 09 July 2011, 06:56:21 UTC
1 parent 9163c47
Tip revision: cd0dc16fdc60860bb69be020518234c0e897a1fb authored by Georg Brandl on 09 July 2011, 06:56:21 UTC
Bump version to 3.2.1.
Bump version to 3.2.1.
Tip revision: cd0dc16
WindowList.py
from tkinter import *
class WindowList:
def __init__(self):
self.dict = {}
self.callbacks = []
def add(self, window):
window.after_idle(self.call_callbacks)
self.dict[str(window)] = window
def delete(self, window):
try:
del self.dict[str(window)]
except KeyError:
# Sometimes, destroy() is called twice
pass
self.call_callbacks()
def add_windows_to_menu(self, menu):
list = []
for key in self.dict:
window = self.dict[key]
try:
title = window.get_title()
except TclError:
continue
list.append((title, key, window))
list.sort()
for title, key, window in list:
menu.add_command(label=title, command=window.wakeup)
def register_callback(self, callback):
self.callbacks.append(callback)
def unregister_callback(self, callback):
try:
self.callbacks.remove(callback)
except ValueError:
pass
def call_callbacks(self):
for callback in self.callbacks:
try:
callback()
except:
t, v, tb = sys.exc_info()
print("warning: callback failed in WindowList", t, ":", v)
registry = WindowList()
add_windows_to_menu = registry.add_windows_to_menu
register_callback = registry.register_callback
unregister_callback = registry.unregister_callback
class ListedToplevel(Toplevel):
def __init__(self, master, **kw):
Toplevel.__init__(self, master, kw)
registry.add(self)
self.focused_widget = self
def destroy(self):
registry.delete(self)
Toplevel.destroy(self)
# If this is Idle's last window then quit the mainloop
# (Needed for clean exit on Windows 98)
if not registry.dict:
self.quit()
def update_windowlist_registry(self, window):
registry.call_callbacks()
def get_title(self):
# Subclass can override
return self.wm_title()
def wakeup(self):
try:
if self.wm_state() == "iconic":
self.wm_withdraw()
self.wm_deiconify()
self.tkraise()
self.focused_widget.focus_set()
except TclError:
# This can happen when the window menu was torn off.
# Simply ignore it.
pass
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