Mercurial > libervia-backend
comparison frontends/src/quick_frontend/quick_widgets.py @ 2043:f3940f6a3222
quick frontend (widgets): a deletion with onDelete can now be cancelled if onDelete return False
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Mon, 22 Aug 2016 20:56:51 +0200 |
| parents | 6353deb1bd73 |
| children | 7f5e344938c1 |
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| 2042:2e948c228643 | 2043:f3940f6a3222 |
|---|---|
| 251 return widget | 251 return widget |
| 252 | 252 |
| 253 def deleteWidget(self, widget_to_delete): | 253 def deleteWidget(self, widget_to_delete): |
| 254 """Delete a widget | 254 """Delete a widget |
| 255 | 255 |
| 256 this method must be called by frontends when a widget is deleted | |
| 256 widget's onDelete method will be called before deletion | 257 widget's onDelete method will be called before deletion |
| 257 """ | 258 """ |
| 258 widget_to_delete.onDelete() | 259 if widget_to_delete.onDelete() == False: |
| 260 return | |
| 261 | |
| 262 if self.host.selected_widget == widget_to_delete: | |
| 263 self.host.selected_widget = None | |
| 259 | 264 |
| 260 for widget_map in self._widgets.itervalues(): | 265 for widget_map in self._widgets.itervalues(): |
| 261 to_delete = set() | 266 to_delete = set() |
| 262 for hash_, widget in widget_map.iteritems(): | 267 for hash_, widget in widget_map.iteritems(): |
| 263 if widget_to_delete is widget: | 268 if widget_to_delete is widget: |
| 333 @return: a hash (can correspond to one or many targets or profiles, depending of widget class) | 338 @return: a hash (can correspond to one or many targets or profiles, depending of widget class) |
| 334 """ | 339 """ |
| 335 return unicode(target) # by defaut, there is one hash for one target | 340 return unicode(target) # by defaut, there is one hash for one target |
| 336 | 341 |
| 337 def onDelete(self): | 342 def onDelete(self): |
| 338 """Called when a widget is deleted""" | 343 """Called when a widget is being deleted |
| 339 log.debug(u"deleting widget {}".format(self)) # Must be implemented by frontends | 344 |
| 340 if self.host.selected_widget == self: | 345 @return (boot, None): False to cancel deletion |
| 341 self.host.selected_widget = None | 346 all other value continue deletion |
| 342 | 347 """ |
| 348 log.debug(u"widget {} deleted".format(self)) | |
| 349 return True | |
| 350 |