*: l10n_ae_pos, l10n_co_pos, l10n_fr_pos_cert, l10n_gcc_pos,
l10n_in_pos, point_of_sale, pos_discount, pos_hr, pos_loyalty,
pos_mercury, pos_restaurant, pos_sale, pos_six
The code of the pos was one of the first adopters of owl 1, as such, the
code was not initially written to take full advantage of the owl
reactivity system that would eventually make its way into owl 2. In
order to convert the code quickly when migrating to owl 2, a big
shortcut was taken: whenever something in the state of the pos changed,
the entire UI would be rerendered. While this works decently well in
practice, it can create confusing situations because the mental model
needed to understand how components work in the pos is different from
the rest of the code base.
This commit changes the existing code to use the typical fine-grained
reactivity model used everywhere else: components individually subscribe
to the pieces of state that they use and will rerender on their own when
this state changes. In order to achieve this, the pos global state has
been removed from the environment and should now be access through the
use of the custom hook `usePos` which will subscribe the component to
the state that it reads. This also has some minor performance benefits
as we only render the parts of the UI that actually need to update
whenever there is a state mutation, instead of the entire UI which can
be expensive in some cases (eg, the product screen will filter all
products during rendering to find only the products that match the
search, which is expensive when there are a lot of loaded products)
closesodoo/odoo#120992
Related: odoo/enterprise#40873
Signed-off-by: Joseph Caburnay (jcb) <jcb@odoo.com>
Samuel Degueldre
3fb24aa05e