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nitpicker: validate pointer pos after reconfig

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Since the panorama depends on the config, nitpicker needs to re-evaluate
the validity of the pointer position after each reconfiguration. If the
pointer position is no longer visible, pick a new visible one.

Issue #5352
This commit is contained in:
Norman Feske 2024-10-29 14:02:30 +01:00 committed by Christian Helmuth
parent baedd79f62
commit aafd03ee74
1 changed files with 19 additions and 13 deletions
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32
repos/os/src/server/nitpicker/main.cc
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@ -734,16 +734,23 @@ struct Nitpicker::Main : Focus_updater, Hover_updater,
s->submit_sync();
}
Pointer _any_visible_pointer_position()
{
Pointer const captured_pos = _capture_root.any_visible_pointer_position();
return captured_pos.ok() ? captured_pos : _anywhere_at_fb_screen();
}
bool _visible(Pointer const p) const
{
return _capture_root.visible(p) || _visible_at_fb_screen(p);
}
/**
* User_state::Action interface
*/
Pointer sanitized_pointer_position(Pointer const orig_pos, Point pos) override
{
auto visible = [&] (Pointer p)
{
return _capture_root.visible(p) || _visible_at_fb_screen(p);
};
auto for_each_value = [] (int const from, int const to, auto const &fn)
{
int const step = (from < to) ? 1 : -1;
@ -751,7 +758,7 @@ struct Nitpicker::Main : Focus_updater, Hover_updater,
fn(i);
};
if (visible(pos))
if (_visible(pos))
return pos;
/* move pointer along screen edge */
@ -760,7 +767,11 @@ struct Nitpicker::Main : Focus_updater, Hover_updater,
[&] (Point p) { return p; },
[&] (Nowhere) { return Point { }; });
auto try_better = [&] (Point p) { if (visible(p)) best = p; };
/* panorama change may have made area around the pointer invisible */
if (!_visible(best))
return _any_visible_pointer_position();
auto try_better = [&] (Point p) { if (_visible(p)) best = p; };
for_each_value(best.x, pos.x, [&] (int x) { try_better({ x, best.y }); });
for_each_value(best.y, pos.y, [&] (int y) { try_better({ best.x, y }); });
@ -768,12 +779,7 @@ struct Nitpicker::Main : Focus_updater, Hover_updater,
return best;
}
if (visible(orig_pos))
return orig_pos;
Pointer const captured_pos = _capture_root.any_visible_pointer_position();
return captured_pos.ok() ? captured_pos : _anywhere_at_fb_screen();
return _any_visible_pointer_position();
}
/**