Remove support of dynamic colors on <tree>

The 'colors' and 'options' fields are not supported by the RelaxNG
schema of the <tree> element. Remove the support until we find a
good solution for this.

web_tree_dynamic_colored_field/demo/res_users.xml

@@ -4,9 +4,6 @@
         <field name="model">res.users</field>
         <field name="inherit_id" ref="base.view_users_tree" />
         <field name="arch" type="xml">
-          <tree position="attributes">
-            <attribute name="options">{"color_field": "lang"}</attribute>
-          </tree>
           <field name="login_date" position="attributes">
             <attribute name="options">{
               "bg_color": "#9e1635: login_date == False",

web_tree_dynamic_colored_field/readme/DESCRIPTION.rst

@@ -1,15 +1,8 @@
 This module aims to add support for dynamically coloring fields in tree view
 according to data in the record.
 
-It provides attributes on fields with a similar syntax as the ``colors`` attribute
-in tree tags.
-
-Further, it provides a ``color_field`` attribute on tree tags's ``options`` to use
-a field's value as color.
-
 Features
 ========
 
 * Add attribute ``bg_color`` on field's ``options`` to color background of a cell in tree view
 * Add attribute ``fg_color`` on field's ``options`` to change text color of a cell in tree view
-* Add attribute ``color_field`` on the tree element's ``options`` to use as color

web_tree_dynamic_colored_field/readme/ROADMAP.rst

@@ -0,0 +1,5 @@
+* Before version 13.0, this module had a feature allowing to change the color of
+  a line depending on a field, using a ``colors`` attribute with the name of the
+  field on the ``<tree>`` element. Since 13.0, the ``colors`` attribute is no
+  longer in the RelaxNG schema of the tree view, so we can't use it anymore.
+  This feature has then been dropped, but could be reimplement in another way.

web_tree_dynamic_colored_field/readme/USAGE.rst

@@ -26,18 +26,6 @@
 
     With this example, column which renders 'name' field will have its text colored in white on a customer records.
 
-* In the tree view declaration, use ``options='{"color_field": "my_color"}'`` attribute in the ``tree`` tag::
-
-    ...
-    <field name="arch" type="xml">
-        <tree string="View name" options='{"color_field": "my_color"}' >
-            ...
-            <field name="my_color" invisible="1"/>
-            ...
-        </tree>
-    </field>
-    ...
-
 * If you want to use more than one color, you can split the attributes using ';':
 
 .. code::

web_tree_dynamic_colored_field/static/src/js/web_tree_dynamic_colored_field.js

@@ -5,31 +5,6 @@ odoo.define('web_tree_dynamic_colored_field', function (require) {
     var pyUtils = require("web.py_utils");
 
     ListRenderer.include({
-        /**
-         * Look up for a `color_field` parameter in tree `colors` attribute
-         *
-         * @override
-         */
-        _renderBody: function () {
-            if (this.arch.attrs.options) {
-                var archOptions = this.arch.attrs.options;
-                if (!_.isObject(archOptions)) {
-                    archOptions = pyUtils.py_eval(archOptions);
-                }
-                var colorField = archOptions.color_field;
-                if (colorField) {
-                    // Validate the presence of that field in tree view
-                    if (this.state.data.length && colorField in this.state.data[0].data) {
-                        this.colorField = colorField;
-                    } else {
-                        console.warn(
-                            "No field named '" + colorField + "' present in view."
-                        );
-                    }
-                }
-            }
-            return this._super();
-        },
         /**
          * Colorize a cell during it's render
          *
@@ -49,12 +24,6 @@ odoo.define('web_tree_dynamic_colored_field', function (require) {
          * @param {Object} node an XML node (must be a <field>)
          */
         applyColorize: function ($td, record, node, ctx) {
-            // safely resolve value of `color_field` given in <tree>
-            var treeColor = record.data[this.colorField];
-            if (treeColor) {
-                $td.css('color', treeColor);
-            }
-            // apply <field>'s own `options`
             if (!node.attrs.options) { return; }
             if (node.tag !== 'field') { return; }
             var nodeOptions = node.attrs.options;