ColorButton: add new signal dialog-open
This signal is intendet to be used to modify something before the colorpicker dialog gets opend. For example close a popover before the dialog shows up.
fixes #4766 (closed)
Some points that need to be discussed:
-
Makes the name sense? -
Is there maybe a more general approach, like derive GtkColorButton
fromGtkButton
and instead use theclicked
signal? -
pass the color dialog as a argument, allow modification?