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comparison cagou/core/widgets_handler.py @ 355:8b6621cc142c

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core (widgets handler): clear widgets when WHWrapper is detached: when WHWrapper is detached from parent, we call clear_widgets to detach children. This avoid CagouWidget.whwrapper to lead to this now unused wrapper (this was causing a bug when testing if a widget is attached and could be re-used, leading to the unnecessary creation of new widgets). Added ignore_missing when removing current_slide from visible widgets, to avoid error logging if wrapper was not active.
author Goffi <goffi@goffi.org>
date Fri, 17 Jan 2020 20:33:43 +0100
parents 19422bbd9c8e
children e1f56257cabc
comparison
equal deleted inserted replaced
354:aa860c10acfc 355:8b6621cc142c
84 return None 84 return None
85 for wid in wid_list: 85 for wid in wid_list:
86 if wid._split != 'None': 86 if wid._split != 'None':
87 return wid 87 return wid
88 return next(iter(wid_list)) 88 return next(iter(wid_list))
89
90 def on_parent(self, __, new_parent):
91 if new_parent is None:
92 # we detach all children so CagouWidget.whwrapper won't link to this one
93 # anymore
94 self.clear_widgets()
89 95
90 @property 96 @property
91 def _left_wid(self): 97 def _left_wid(self):
92 return self._main_wid(self._left_wids) 98 return self._main_wid(self._left_wids)
93 99
349 del self.ellipse 355 del self.ellipse
350 356
351 def clear_widgets(self): 357 def clear_widgets(self):
352 current_slide = self.current_slide 358 current_slide = self.current_slide
353 if current_slide is not None: 359 if current_slide is not None:
354 G.host._removeVisibleWidget(current_slide) 360 G.host._removeVisibleWidget(current_slide, ignore_missing=True)
355 361
356 super().clear_widgets() 362 super().clear_widgets()
357 363
358 self.screen_manager = None 364 self.screen_manager = None
359 self.carousel = None 365 self.carousel = None