[IMP] mrp_subcontracting: convert portal to OWL

The subcontracting portal was already mainly written in OWL, but a
couple of small tweaks are needed to match the latest implementation.

Used for reference:
https://github.com/odoo/odoo/blob/b8ef0cc4f22827f684cf3361ee9fd526d27cb72a/addons/project/static/src/project_sharing/project_sharing.js
i.e. the OWL changes to the code that this portal was originally
"inspired" by

closes odoo/odoo#104024

Signed-off-by: Arnold Moyaux (arm) <arm@odoo.com>

addons/mrp_subcontracting/static/src/subcontracting_portal/subcontracting_portal.js

@@ -4,13 +4,11 @@ import { useService } from '@web/core/utils/hooks';
 import { ActionContainer } from '@web/webclient/actions/action_container';
 import { MainComponentsContainer } from "@web/core/main_components_container";
 import { useOwnDebugContext } from "@web/core/debug/debug_context";
-import { ErrorHandler } from "@web/core/utils/components";
 import { session } from '@web/session';
-import { LegacyComponent } from "@web/legacy/legacy_component";
 
-const { useEffect} = owl;
+const { Component, useEffect, useExternalListener } = owl;
 
-export class SubcontractingPortalWebClient extends LegacyComponent {
+export class SubcontractingPortalWebClient extends Component {
     setup() {
         window.parent.document.body.style.margin = "0"; // remove the margin in the parent body
         this.actionService = useService('action');
@@ -23,19 +21,7 @@ export class SubcontractingPortalWebClient extends LegacyComponent {
             },
             () => []
         );
-    }
-
-    handleComponentError(error, C) {
-        // remove the faulty component
-        this.Components.splice(this.Components.indexOf(C), 1);
-        /**
-         * we rethrow the error to notify the user something bad happened.
-         * We do it after a tick to make sure owl can properly finish its
-         * rendering
-         */
-        Promise.resolve().then(() => {
-            throw error;
-        });
+        useExternalListener(window, "click", this.onGlobalClick, { capture: true });
     }
 
     async _showView() {
@@ -54,7 +40,24 @@ export class SubcontractingPortalWebClient extends LegacyComponent {
             }
         );
     }
+
+    /**
+     * @param {MouseEvent} ev
+     */
+     onGlobalClick(ev) {
+        // When a ctrl-click occurs inside an <a href/> element
+        // we let the browser do the default behavior and
+        // we do not want any other listener to execute.
+        if (
+            ev.ctrlKey &&
+            ((ev.target instanceof HTMLAnchorElement && ev.target.href) ||
+                (ev.target instanceof HTMLElement && ev.target.closest("a[href]:not([href=''])")))
+        ) {
+            ev.stopImmediatePropagation();
+            return;
+        }
+    }
 }
 
-SubcontractingPortalWebClient.components = { ActionContainer, ErrorHandler, MainComponentsContainer };
+SubcontractingPortalWebClient.components = { ActionContainer, MainComponentsContainer };
 SubcontractingPortalWebClient.template = 'mrp_subcontracting.SubcontractingPortalWebClient';