[REF] mail, *: refactor messaging with OWL

This commit is a significant rewriting of client-side discuss, chatter,
chat window, and messaging menu using OWL. The behavior should be broadly
the same, with some slight functional changes here and there.

From a technical standpoint, the code of messaging is mainly organized in 2
main groups of modules:

- models, which are logical entities that depict the client-side state of
  messaging as a whole.
- components, which are in charge of displaying information from models.

This refactoring also introduces new JS guidelines regarding folder structure
(/static) and naming rules for JS modules.

Community PR: https://github.com/odoo/odoo/pull/39023
Enterprise PR: https://github.com/odoo/enterprise/pull/6249

Task-1914207

This PR is a collaborative work by Alexandre, Julien, Sébastien and Xavier,
with the precious help of Lucas to speed it up towards the end.

closes odoo/odoo#39023

Related: odoo/enterprise#6249
Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>
Co-authored-by: Alexandre Kühn <aku@odoo.com>
Co-authored-by: Julien Giannone <jgi@odoo.com>
Co-authored-by: Lucas Perais <lpe@odoo.com>
Co-authored-by: Sébastien Theys <seb@odoo.com>
Co-authored-by: Xavier Dubuc <xdu@odoo.com>

1 files changed, 78 insertions, 0 deletions

diff --git a/addons/mail/static/src/models/user/user.js b/addons/mail/static/src/models/user/user.js
new file mode 100644
index 00000000000..2e6206c79f5
--- /dev/null
+++ b/addons/mail/static/src/models/user/user.js
@@ -0,0 +1,78 @@
+odoo.define('mail/static/src/models/user/user.js', function (require) {
+'use strict';
+
+const { registerNewModel } = require('mail/static/src/model/model_core.js');
+const { attr, one2one } = require('mail/static/src/model/model_field.js');
+
+function factory(dependencies) {
+
+    class User extends dependencies['mail.model'] {
+
+        /**
+         * @override
+         */
+        delete() {
+            if (this.env.messaging) {
+                if (this === this.env.messaging.currentUser) {
+                    this.env.messaging.update({ currentUser: [['unlink-all']] });
+                }
+            }
+            super.delete();
+        }
+
+        //----------------------------------------------------------------------
+        // Public
+        //----------------------------------------------------------------------
+
+        /**
+         * @returns {string}
+         */
+        nameOrDisplayName() {
+            const partner = this.partner;
+            if (!partner) {
+                return this.partnerDisplayName;
+            }
+            return partner.nameOrDisplayName;
+        }
+
+        //----------------------------------------------------------------------
+        // Private
+        //----------------------------------------------------------------------
+
+        /**
+         * @override
+         */
+        _createRecordLocalId(data) {
+            return `${this.env.models['mail.user'].modelName}_${data.id}`;
+        }
+
+        /**
+         * @override
+         */
+        _updateAfter(previous) {
+            if (this.partnerDisplayName && this.partner) {
+                this.partner.update({ display_name: this.partnerDisplayName });
+            }
+        }
+
+    }
+
+    User.fields = {
+        id: attr(),
+        model: attr({
+            default: 'res.user',
+        }),
+        partner: one2one('mail.partner', {
+            inverse: 'user',
+        }),
+        partnerDisplayName: attr(),
+    };
+
+    User.modelName = 'mail.user';
+
+    return User;
+}
+
+registerNewModel('mail.user', factory);
+
+});