def find_child(widget: Gtk.Widget,
criterion: Callable) -> Optional[Gtk.Widget]:
"""Returns first matching widget amongst the widget itself and its descandants"""
if criterion(widget):
return widget
for child in widget.get_children():
result = find_child(child, criterion)
if isinstance(result, Gtk.Widget):
return result
return None
def snapshot_widget(root: Gtk.Widget) -> dict:
style = root.get_style_context()
snap = {
'type': type(root).__name__,
'label': get_label_for_widget(root),
'classes': style.list_classes()}
if isinstance(root, Gtk.Container):
snap['children'] = list(map(snapshot_widget, root.get_children()))
return snap
def snapshot_widget(root: Gtk.Widget) -> dict:
style = root.get_style_context()
snap = {
'type': type(root).__name__,
'label': get_label_for_widget(root),
'classes': style.list_classes()
}
if isinstance(root, Gtk.Container):
snap['children'] = list(map(snapshot_widget, root.get_children()))
return snap
def find_child(widget: Gtk.Widget, child_name):
"""Find child widget by its name.
Goes recursive if needed.
:param widget: parent widget
:param child_name: name of the widget
:return:
"""
if widget.get_name() == child_name:
return widget
if hasattr(widget, 'get_children'):
for child in widget.get_children():
_widget = find_child(child, child_name)
if _widget:
return _widget
def on_buttonnav_left(self, widget: Gtk.Widget,
event: Gdk.EventCrossing) -> None:
widget.get_children()[0].set_reveal_child(False)
def on_buttonnav_entered(self, widget: Gtk.Widget,
event: Gdk.EventCrossing) -> None:
widget.get_children()[0].set_reveal_child(True)
def _iter_all_widgets(root: Gtk.Widget):
yield root
if isinstance(root, Gtk.Container):
for child in root.get_children():
yield from _iter_all_widgets(child)
def _iter_all_widgets(root: Gtk.Widget):
yield root
if isinstance(root, Gtk.Container):
for child in root.get_children():
yield from _iter_all_widgets(child)
