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Support callbacks to patch up Windows menus everywhere.

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This commit is contained in:
Guido van Rossum 1999-02-17 17:19:37 +00:00
parent a79a93ff73
commit 5437ddfa36
1 changed files with 25 additions and 2 deletions
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27
Tools/idle/WindowList.py
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@ -4,11 +4,14 @@ 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):
window.after_idle(self.call_callbacks)
try:
del self.dict[str(window)]
except KeyError:
@ -31,10 +34,30 @@ def add_windows_to_menu(self, menu):
continue
menu.add_command(label=title, command=window.wakeup)
def register_callback(self, callback):
self.callbacks.append(callback)
def unregister_callback(self, callback):
try:
self.callback.remove(callback)
except:
pass
def call_callbacks(self):
for callback in self.callbacks:
try:
callback()
except:
print "warning: callback failed in WindowList", \
sys.exc_type, ":", sys.exc_value
registry = WindowList()
def add_windows_to_menu(menu):
registry.add_windows_to_menu(menu)
add_windows_to_menu = registry.add_windows_to_menu
register_callback = registry.register_callback
unregister_callback = registry.unregister_callback
call_callbacks = registry.call_callbacks
class ListedToplevel(Toplevel):