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st: Drop explicit Clutter grab in StButton

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Nowadays, Clutter knows what an implicit grab is, which gives
us already the feel that we are after with buttons (e.g. press
and drag on the button will not enter other actors meanwhile).

ClutterGrab was only added to provide that feel meanwhile, and
it's also slightly more intense (e.g. altering keyboard focus,
or triggering leave events on all parents of the button) which
may trigger side effects.

An example is the IBus candidates popup, where the pagination
buttons may indirectly trigger dismissing of the entire popup
when interacted, by stealing the keyboard focus to the
client/actor doing IM.

Related: https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2497
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2244
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2924>
This commit is contained in:
Carlos Garnacho 2023-08-30 10:14:16 +02:00 • committed by Marge Bot
parent 3a393738ea
commit 52182e6493
1 changed files with 2 additions and 20 deletions
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22
src/st/st-button.c
View file

@ -78,7 +78,6 @@ struct _StButtonPrivate
ClutterInputDevice *device;
ClutterEventSequence *press_sequence;
ClutterGrab *grab;
guint button_mask : 3;
guint is_toggle : 1;
@ -195,13 +194,6 @@ st_button_button_press (ClutterActor *actor,
if (priv->button_mask & mask)
{
ClutterActor *stage;
stage = clutter_actor_get_stage (actor);
if (priv->grabbed == 0)
priv->grab = clutter_stage_grab (CLUTTER_STAGE (stage), actor);
priv->grabbed |= mask;
st_button_press (button, device, mask, NULL);
@ -234,11 +226,6 @@ st_button_button_release (ClutterActor *actor,
st_button_release (button, device, mask, is_click ? button_nr : 0, NULL);
priv->grabbed &= ~mask;
if (priv->grab && priv->grabbed == 0)
{
clutter_grab_dismiss (priv->grab);
g_clear_pointer (&priv->grab, clutter_grab_unref);
}
return TRUE;
}
@ -266,7 +253,8 @@ st_button_touch_event (ClutterActor *actor,
sequence = clutter_event_get_event_sequence (event);
event_type = clutter_event_type (event);
if (event_type == CLUTTER_TOUCH_BEGIN && !priv->grab && !priv->press_sequence)
if (event_type == CLUTTER_TOUCH_BEGIN &&
priv->grabbed == 0 && !priv->press_sequence)
{
st_button_press (button, device, 0, sequence);
return CLUTTER_EVENT_STOP;
@ -923,12 +911,6 @@ st_button_fake_release (StButton *button)
priv = st_button_get_instance_private (button);
if (priv->grab)
{
clutter_grab_dismiss (priv->grab);
g_clear_pointer (&priv->grab, clutter_grab_unref);
}
priv->grabbed = 0;
if (priv->pressed || priv->press_sequence)