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Kovid Goyal 2014-05-10 15:38:44 +05:30
parent 29c8943ebd
commit dfc0923db1
1 changed files with 4 additions and 1 deletions
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5
src/calibre/gui2/tweak_book/editor/widget.py
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@ -254,7 +254,10 @@ class Editor(QMainWindow):
m.addAction(actions['rename-block-tag-%s' % name]) m.addAction(actions['rename-block-tag-%s' % name])
def break_cycles(self): def break_cycles(self):
self.modification_state_changed.disconnect() try:
self.modification_state_changed.disconnect()
except TypeError:
pass # in case this signal was never connected
self.undo_redo_state_changed.disconnect() self.undo_redo_state_changed.disconnect()
self.copy_available_state_changed.disconnect() self.copy_available_state_changed.disconnect()
self.cursor_position_changed.disconnect() self.cursor_position_changed.disconnect()