[FIX] web: backspace in empty searchbar input

Before this rev. a crash occurred when pressing backspace in the control panel
view searchbar input if there was no facet to remove.

The use case is now correctly handled and nothing happens.

Task 1902826

closes odoo/odoo#29602

2 files changed, 5 insertions, 6 deletions

diff --git a/addons/web/static/src/js/views/control_panel/control_panel_controller.js b/addons/web/static/src/js/views/control_panel/control_panel_controller.js
index 991cee949e8..3d6e62f4bf9 100644
--- a/addons/web/static/src/js/views/control_panel/control_panel_controller.js
+++ b/addons/web/static/src/js/views/control_panel/control_panel_controller.js
@@ -160,12 +160,11 @@ var ControlPanelController = mvc.Controller.extend({
      */
     _onFacetRemoved: function (ev) {
         ev.stopPropagation();
-        var group = ev.data.group;
-        if (!group) {
-            group = this.renderer.getLastFacet();
+        var group = ev.data.group || this.renderer.getLastFacet();
+        if (group) {
+            this.model.deactivateGroup(group.id);
+            this._reportNewQueryAndRender();
         }
-        this.model.deactivateGroup(group.id);
-        this._reportNewQueryAndRender();
     },
     /**
      * @private
diff --git a/addons/web/static/src/js/views/control_panel/control_panel_renderer.js b/addons/web/static/src/js/views/control_panel/control_panel_renderer.js
index eea7fdae430..665fe73bf7d 100644
--- a/addons/web/static/src/js/views/control_panel/control_panel_renderer.js
+++ b/addons/web/static/src/js/views/control_panel/control_panel_renderer.js
@@ -102,7 +102,7 @@ var ControlPanelRenderer = Renderer.extend({
     //--------------------------------------------------------------------------
 
     /**
-     * @returns {Object}
+     * @returns {Object|undefined}
      */
     getLastFacet: function () {
         return this.state.facets.slice(-1)[0];