[ADD] web_touchscreen: enable kanban sub-form views for tablets

This module prefers kanban sub-form views when using a tablet, or any other
device with a touch screen, no matter its size.

@moduon MT-4472

web_touchscreen/static/src/form_controller.esm.js

@@ -0,0 +1,21 @@
+/** @odoo-module **/
+/* Copyright 2023 Moduon Team S.L.
+ * License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0) */
+
+import {FormController} from "@web/views/form/form_controller";
+import {patch} from "@web/core/utils/patch";
+import {hasTouch} from "@web/core/browser/feature_detection";
+
+patch(FormController.prototype, "web_touchscreen.FormController", {
+    setup() {
+        const wasSmall = this.env.isSmall;
+        // Create a new env that extends the original one but overrides the way
+        // Odoo considers this device small: it will be small if it has touch
+        // capabilities, not only if the screen is small. In practice, this
+        // will make the inline subforms prefer the kanban mode if possible.
+        const newEnv = {isSmall: wasSmall || hasTouch()};
+        Object.setPrototypeOf(newEnv, this.env);
+        this.env = newEnv;
+        return this._super(...arguments);
+    },
+});