Clean up focus follows mouse logic

Firstly, this fixes a recent regression where having
`focus_follows_mouse yes` and hovering an inactive tab caused it to gain
focus. The code was missing a view_is_visible check.

The code is handling the logic for both focus_follows_mouse yes and
focus_follows_mouse always, where the latter will apply when nudging the
mouse after a workspace switch. However, the view_is_visible check
didn't apply when using focus_follows_mouse always, so hovering a tab
with that configuration would cause is to focus. This was a bug. When
adding the view_is_visible check, it now applies to both yes and always.

Note that the comment about the split container was wrong. At this point
the hovered node cannot be a split container because it passed the
node_is_view check. The comment has been removed.

Lastly, the else condition is completely removed. This didn't appear to
have any practical use. Setting focus to the result of
seat_get_focus_inactive is very likely going to be a no op. There is a
slim chance that this will break something, and if so I'd like to find
out what so it can be properly documented in the code.
This commit is contained in:
Ryan Dwyer 2019-03-19 19:41:24 +10:00 committed by Drew DeVault
parent e9a476244d
commit bfa20e65d8

View file

@ -439,18 +439,17 @@ static void check_focus_follows_mouse(struct sway_seat *seat,
return; return;
} }
if (node_is_view(hovered_node)) { // This is where we handle the common case. We don't want to focus inactive
// tabs, hence the view_is_visible check.
if (node_is_view(hovered_node) &&
view_is_visible(hovered_node->sway_container->view)) {
// e->previous_node is the node which the cursor was over previously.
// If focus_follows_mouse is yes and the cursor got over the view due
// to, say, a workspace switch, we don't want to set the focus.
// But if focus_follows_mouse is "always", we do.
if (hovered_node != e->previous_node || if (hovered_node != e->previous_node ||
config->focus_follows_mouse == FOLLOWS_ALWAYS) { config->focus_follows_mouse == FOLLOWS_ALWAYS) {
seat_set_focus(seat, hovered_node); seat_set_focus(seat, hovered_node);
} else {
// Focusing a tab which contains a split child
struct sway_node *next_focus =
seat_get_focus_inactive(seat, &root->node);
if (next_focus && node_is_view(next_focus) &&
view_is_visible(next_focus->sway_container->view)) {
seat_set_focus(seat, next_focus);
}
} }
} }
} }