[IMP] web: add a generic notification feature inside form views

The notification box remains on the form until either:
 - the user closes it explicitly, or
 - the user edits the record, or
 - the form view is refreshed (switch to another record, or refresh form).

Add a method `once` to `EventDispatcherMixin`, as it is convenient.
Make `FormView` trigger events `to_view_mode` and `to_edit_mode`.

1 files changed, 0 insertions, 12 deletions

diff --git a/addons/web_tip/static/src/js/tip.js b/addons/web_tip/static/src/js/tip.js
index 518c337b225..8379cc4830b 100644
--- a/addons/web_tip/static/src/js/tip.js
+++ b/addons/web_tip/static/src/js/tip.js
@@ -336,18 +336,6 @@ WebClient.include({
     }
 });
 
-formView.include({
-    to_edit_mode: function() {
-        this._super();
-        this.trigger('to_edit_mode');
-    },
-
-    to_view_mode: function() {
-        this._super();
-        this.trigger('to_view_mode');
-    }
-});
-
 var FieldStatus = core.form_widget_registry.get('statusbar');
 
 FieldStatus.include({