[FIX] web: list: keep header checkbox selected

... when toggling an optional field.

This bug wasn't really important until now, but with the new
selection mechanism, it could lead to weird situations (e.g. the
selection box says that all records are selected, but the thead
checkbox isn't checked).

Part of task 2185145

1 files changed, 3 insertions, 0 deletions

diff --git a/addons/web/static/src/js/views/list/list_renderer.js b/addons/web/static/src/js/views/list/list_renderer.js
index 418c39b14e0..5cf4b022c5d 100644
--- a/addons/web/static/src/js/views/list/list_renderer.js
+++ b/addons/web/static/src/js/views/list/list_renderer.js
@@ -989,6 +989,9 @@ var ListRenderer = BasicRenderer.extend({
                     return _.contains(self.selection, $(el).data('id'));
                 });
                 $checked_rows.find('.o_list_record_selector input').prop('checked', true);
+                if ($checked_rows.length === self.$('.o_data_row').length) { // all rows are checked
+                    self.$('thead .o_list_record_selector input').prop('checked', true);
+                }
             }
         });
         return Promise.all([this._super.apply(this, arguments), prom]);