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[util/popup] replace mainloop with custom loop

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add a custom event loop for popups that closes the menu on mouse button
release events and - most importantly - propagates this event back to
any parent menu.

fixes #633
This commit is contained in:
tobi-wan-kenobi 2020-05-30 10:02:12 +02:00
parent b9a30ae235
commit 1c04068f89
2 changed files with 23 additions and 2 deletions
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22
bumblebee_status/util/popup.py
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@ -15,6 +15,8 @@ class menu(object):
"""
def __init__(self, parent=None, leave=True):
self.running = True
self.parent = None
if not parent:
self._root = tk.Tk()
self._root.withdraw()
@ -25,9 +27,12 @@ class menu(object):
self._root.withdraw()
self._menu = tk.Menu(self._root, tearoff=0)
self._menu.bind("<FocusOut>", self.__on_focus_out)
self.parent = parent
if leave:
self._menu.bind("<Leave>", self.__on_focus_out)
self._menu.bind("<ButtonRelease-1>", self.release)
"""Returns the root node of this menu
:return: root node
@ -51,6 +56,11 @@ class menu(object):
self._root.destroy()
callback()
def release(self, event=None):
self.running=False
if self.parent:
self.parent.release(event)
"""Adds a cascading submenu to the current menu
:param menuitem: label to display for the submenu
@ -88,7 +98,17 @@ class menu(object):
self._menu.tk_popup(event["x"] + offset_x, event["y"] + offset_y)
finally:
self._menu.grab_release()
self._root.mainloop()
while self.running == True:
try:
self._root.update_idletasks()
self._root.update()
except:
self.running = False
try:
self._root.destroy()
except:
pass
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