[FIX] project_todo: missing "add a to-do" in the command palette

Task 3300854 would remove the "add a to-do" action in the systray, but
by doing so, it removed the action in the command palette as well. This
PR will re-add the action in the command palette.

The ActivityMenu component is patched to add the command each time it is
loaded.

task-3580533

closes odoo/odoo#141168

Signed-off-by: Xavier Bol (xbo) <xbo@odoo.com>

addons/project_todo/__manifest__.py

@@ -28,6 +28,7 @@
             'project_todo/static/src/components/**/*',
             'project_todo/static/src/scss/todo.scss',
             'project_todo/static/src/views/**/*',
+            'project_todo/static/src/web/**/*',
         ],
     },
     'license': 'LGPL-3',

addons/project_todo/i18n/project_todo.pot

@@ -186,6 +186,14 @@ msgstr ""
 msgid "Add To-Do"
 msgstr ""
 
+#. module: project_todo
+#. odoo-javascript
+#: code:addons/project_todo/static/src/web/activity/activity_menu_patch.js:0
+#: code:addons/project_todo/static/src/web/activity/activity_menu_patch.js:0
+#, python-format
+msgid "Add a To-Do"
+msgstr ""
+
 #. module: project_todo
 #: model_terms:ir.ui.view,arch_db:project_todo.mail_activity_todo_create_popup
 msgid "Add details about your to-do..."

addons/project_todo/static/src/web/activity/activity_menu_patch.js

@@ -0,0 +1,45 @@
+/** @odoo-module **/
+
+import { _t } from "@web/core/l10n/translation";
+import { ActivityMenu } from "@mail/core/web/activity_menu";
+import { FormViewDialog } from "@web/views/view_dialogs/form_view_dialog";
+import { useCommand } from "@web/core/commands/command_hook";
+import { useService } from "@web/core/utils/hooks";
+import { patch } from "@web/core/utils/patch";
+import { registry } from "@web/core/registry";
+
+// Add a to-do category for the command palette
+registry.category("command_categories").add("to-do", {}, { sequence: 105 });
+
+patch(ActivityMenu.prototype, {
+    setup() {
+        super.setup(...arguments);
+        this.orm = useService("orm");
+        this.dialogService = useService("dialog");
+        useCommand(
+            _t("Add a To-Do"),
+            () => {
+                document.body.click(); // hack to close command palette
+                this.createActivityTodo();
+            },
+            {
+                category: "to-do",
+                hotkey: "alt+control+l",
+                global: true,
+            }
+        );
+    },
+
+    async createActivityTodo() {
+        const wizard = await this.orm.call("mail.activity.todo.create", "create", [{
+            "user_id": this.userId,
+        }]);
+        this.dialogService.add(FormViewDialog, {
+            title: _t("Add a To-Do"),
+            resModel: "mail.activity.todo.create",
+            resId: wizard,
+            preventCreate: true,
+            size: "md",
+        });
+    },
+});