[IMP] web: add simple calculator on numeric fields

Add a new behavior to numeric fields, possibility to enter value manually or to use a simple arithmetic expression that will be evaluated.
Example: =20+3*2
In order for the computation of the arithmetic expression to be done, the value needs to starts with = and then an expression can be entered. We only support the basics mathematical operations + - * / ( ) ^
User locale and digits separator are taken into account. If the value entered can't be evaluated to a numeric, the field will be displayed in error.

closes odoo/odoo#34538

Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/addons/web/static/lib/py.js/lib/py.js b/addons/web/static/lib/py.js/lib/py.js
index 60b80a7f439..645e668f5c1 100644
--- a/addons/web/static/lib/py.js/lib/py.js
+++ b/addons/web/static/lib/py.js/lib/py.js
@@ -882,6 +882,12 @@ var py = {};
             }
             return py.float.fromJSON(this._value * other._value);
         },
+        __pow__: function (other) {
+            if (!py.PY_isInstance(other, py.float)) {
+                return py.NotImplemented;
+            }
+            return py.float.fromJSON(this._value ** other._value);
+        },
         __div__: function (other) {
             if (!py.PY_isInstance(other, py.float)) {
                 return py.NotImplemented;