[IMP] web: float_factor and float_toggle widgets

This commit provides new js widgets for list, kanban and form
views on float field.

1/ 'float_factor' displays the normal float field, but takes a
conversion factor as option. The displays value is the normal
one multiplied by the factor.

You can use the widget like
<field name="my_float_field" widget="float_factor"
option="{'factor': 2}"/>

2/ 'float_toggle' displays a button (in edit mode) looping on a
range of given value at each click. A conversion factor is optional
(default will be 1) to display a converted value, but sent to
non converted one to the server.

You can use the widget like
<field name="my_float" widget="float_toggle"
option="{'range': [0, 0.5, 1], 'factor': 2}"/>

'range' and 'factor' are put in the options.
In simple read mode, the widget display the value as a traditionnal
text (like a normal char field).

This commit provides tests and documentation for those 2 widgets.

Task #39079

1 files changed, 20 insertions, 0 deletions

diff --git a/addons/web/static/src/js/core/utils.js b/addons/web/static/src/js/core/utils.js
index 3068a6528c9..f4031fccec9 100644
--- a/addons/web/static/src/js/core/utils.js
+++ b/addons/web/static/src/js/core/utils.js
@@ -511,6 +511,26 @@ var utils = {
       return Object.freeze(obj);
     },
 
+    /**
+     * Find the closest value of the given one in the provided array
+     *
+     * @param {Number} num
+     * @param {Array} arr
+     * @returns {Number|undefined}
+     */
+    closestNumber: function (num, arr) {
+        var curr = arr[0];
+        var diff = Math.abs (num - curr);
+        for (var val = 0; val < arr.length; val++) {
+            var newdiff = Math.abs (num - arr[val]);
+            if (newdiff < diff) {
+                diff = newdiff;
+                curr = arr[val];
+            }
+        }
+        return curr;
+    },
+
 };
 
 return utils;