[MOV] hr: separate chat_mixin and employee code

In preparation of the next commit, separate the chat mixin from the
employee js code into appropriate files

Task ID: 2575379

addons/hr/__manifest__.py

@@ -50,7 +50,8 @@
     'assets': {
         'web.assets_backend': [
             'hr/static/src/scss/hr.scss',
-            'hr/static/src/js/chat.js',
+            'hr/static/src/js/chat_mixin.js',
+            'hr/static/src/js/hr_employee.js',
             'hr/static/src/js/language.js',
             'hr/static/src/js/m2x_avatar_employee.js',
             'hr/static/src/js/standalone_m2o_avatar_employee.js',

addons/hr/static/src/js/chat_mixin.js

@@ -0,0 +1,36 @@
+odoo.define('hr.chat_mixin', function (require) {
+"use strict";
+
+const { Component } = owl;
+
+// CHAT MIXIN
+const ChatMixin = {
+    /**
+     * @override
+     */
+    _render: function () {
+        var self = this;
+        return this._super.apply(this, arguments).then(function () {
+            var $chat_button = self.$el.find('.o_employee_chat_btn');
+            $chat_button.off('click').on('click', self._onOpenChat.bind(self));
+        });
+    },
+
+    destroy: function () {
+        if (this.$el) {
+            this.$el.find('.o_employee_chat_btn').off('click');
+        }
+        return this._super();
+    },
+
+    _onOpenChat: function (ev) {
+        ev.preventDefault();
+        ev.stopImmediatePropagation();
+        const env = Component.env;
+        env.messaging.openChat({ employeeId: this.state.data.id });
+        return true;
+    },
+};
+
+return ChatMixin;
+});

addons/hr/static/src/js/hr_employee.js

@@ -11,36 +11,7 @@ odoo.define('hr.employee_chat', function (require) {
     var KanbanRenderer = require('web.KanbanRenderer');
     var KanbanRecord = require('web.KanbanRecord');
 
-    const { Component } = owl;
-
-    // CHAT MIXIN
-    var ChatMixin = {
-        /**
-         * @override
-         */
-        _render: function () {
-            var self = this;
-            return this._super.apply(this, arguments).then(function () {
-                var $chat_button = self.$el.find('.o_employee_chat_btn');
-                $chat_button.off('click').on('click', self._onOpenChat.bind(self));
-            });
-        },
-
-        destroy: function () {
-            if (this.$el) {
-                this.$el.find('.o_employee_chat_btn').off('click');
-            }
-            return this._super();
-        },
-
-        _onOpenChat: function (ev) {
-            ev.preventDefault();
-            ev.stopImmediatePropagation();
-            const env = Component.env;
-            env.messaging.openChat({ employeeId: this.state.data.id });
-            return true;
-        },
-    };
+    const ChatMixin = require('hr.chat_mixin');
 
     // USAGE OF CHAT MIXIN IN FORM VIEWS
     var EmployeeFormRenderer = FormRenderer.extend(ChatMixin);