By setting a filter function on the box one can decide dynamically which of the children to show.
For instance, to implement a search function that only shows the children matching the search terms.
The filter_func will be called for each child after the call, and it will continue to be called each time a child changes (via gtk.flow_box_child.FlowBoxChild.changed) or when gtk.flow_box.FlowBox.invalidateFilter is called.
Note that using a filter function is incompatible with using a model (see gtk.flow_box.FlowBox.bindModel).
callback that lets you filter which children to show
By setting a filter function on the box one can decide dynamically which of the children to show.
For instance, to implement a search function that only shows the children matching the search terms.
The filter_func will be called for each child after the call, and it will continue to be called each time a child changes (via gtk.flow_box_child.FlowBoxChild.changed) or when gtk.flow_box.FlowBox.invalidateFilter is called.
Note that using a filter function is incompatible with using a model (see gtk.flow_box.FlowBox.bindModel).