minimize groupchats when closing several windows at the same time. Fixes #4987

src/chat_control.py

@@ -2327,6 +2327,9 @@ class ChatControl(ChatControlBase):
 		self.conv_textview.del_handlers()
 		self.msg_textview.destroy()
 
+	def minimizable(self):
+		return False
+
 	def safe_shutdown(self):
 		return False
 

src/groupchat_control.py

@@ -1742,6 +1742,12 @@ class GroupchatControl(ChatControlBase):
 			proposed_nick, is_modal=False, ok_handler=on_ok,
 			cancel_handler=on_cancel)
 
+	def minimizable(self):
+		if self.contact.jid in gajim.config.get_per('accounts', self.account,
+		'minimized_gc').split(' '):
+			return True
+		return False
+
 	def minimize(self, status='offline'):
 		# Minimize it
 		win = gajim.interface.msg_win_mgr.get_window(self.contact.jid,
@@ -1799,8 +1805,7 @@ class GroupchatControl(ChatControlBase):
 		gajim.events.remove_events(self.account, self.room_jid)
 
 	def safe_shutdown(self):
-		if self.contact.jid in gajim.config.get_per('accounts', self.account,
-		'minimized_gc').split(' '):
+		if self.minimizable():
 			return True
 		includes = gajim.config.get('confirm_close_muc_rooms').split(' ')
 		excludes = gajim.config.get('noconfirm_close_muc_rooms').split(' ')
@@ -1812,8 +1817,7 @@ class GroupchatControl(ChatControlBase):
 		return True
 
 	def allow_shutdown(self, method, on_yes, on_no, on_minimize):
-		if self.contact.jid in gajim.config.get_per('accounts', self.account,
-		'minimized_gc').split(' '):
+		if self.minimizable():
 			on_minimize(self)
 			return
 		if method == self.parent_win.CLOSE_ESC:

src/message_control.py

@@ -71,6 +71,11 @@ class MessageControl:
 		or inactive (state is False)'''
 		pass  # Derived classes MUST implement this method
 
+	def minimizable(self):
+		'''Called to check if control can be minimized'''
+		# NOTE: Derived classes MAY implement this
+		return False
+
 	def safe_shutdown(self):
 		'''Called to check if control can be closed without loosing data.
 		returns True if control can be closed safely else False'''

src/message_window.py

@@ -206,6 +206,9 @@ class MessageWindow(object):
 				if checked:
 					gajim.config.set('confirm_close_multiple_tabs', False)
 				self.dont_warn_on_delete = True
+				for ctrl in self.controls():
+					if ctrl.minimizable():
+						ctrl.minimize()
 				win.destroy()
 
 			if not gajim.config.get('confirm_close_multiple_tabs'):