[FIX] web: allow user to move cursor in search bar

With the control panel refactoring, the auto_complete widget was set on
a different target, which caused issues with the search bar: the event
handlers for the search bar were triggered before the handlers for the
auto_complete widget.

With this commit, we make sure they are handled in the proper order.

Also, a small piece of code that was supposed to check the position of
the cursor was lost.

closes odoo/odoo#30795

addons/mail/static/tests/discuss_tests.js

@@ -179,7 +179,7 @@ QUnit.test('searchview filter messages', function (assert) {
 
         // interact with searchview so that there is only once message
         $('.o_searchview_input').val("ab").trigger('keyup');
-        $('.o_searchview_input_container').trigger($.Event('keydown', { which: $.ui.keyCode.ENTER }));
+        $('.o_searchview_input').trigger($.Event('keydown', { which: $.ui.keyCode.ENTER }));
 
         assert.strictEqual($('.o_searchview_facet').length, 1,
             "the searchview should have a facet");
@@ -191,7 +191,7 @@ QUnit.test('searchview filter messages', function (assert) {
         // interact with search view so that there are no matching messages
         testUtils.dom.click($('.o_facet_remove'));
         $('.o_searchview_input').val("abcd").trigger('keyup');
-        $('.o_searchview_input_container').trigger($.Event('keydown', { which: $.ui.keyCode.ENTER }));
+        $('.o_searchview_input').trigger($.Event('keydown', { which: $.ui.keyCode.ENTER }));
 
         assert.strictEqual($('.o_searchview_facet').length, 1,
             "the searchview should have a facet");

addons/web/static/src/js/views/control_panel/search/search_bar.js

@@ -142,6 +142,7 @@ var SearchBar = Widget.extend({
         var self = this;
         this._setupAutoCompletionWidgets();
         this.autoComplete = new AutoComplete(this, {
+            $input: this.$('input'),
             source: this._getAutoCompleteSources.bind(this),
             select: this._onAutoCompleteSelected.bind(this),
             get_search_string: function () {

addons/web/static/src/js/widgets/auto_complete.js

@@ -19,7 +19,7 @@ return Widget.extend({
     //      to obtain the current search string.
     init: function (parent, options) {
         this._super(parent);
-        this.$input = parent.$el;
+        this.$input = options.$input;
         this.source = options.source;
         this.select = options.select;
         this.get_search_string = options.get_search_string;
@@ -90,14 +90,24 @@ return Widget.extend({
                     ev.preventDefault();
                     break;
                 case $.ui.keyCode.RIGHT:
+                    if(self.$input[0].selectionStart < self.search_string.length) {
+                        ev.stopPropagation();
+                        return;
+                    }
                     self.searching = false;
                     var current = self.current_result;
                     if (current && current.expand && !current.expanded) {
                         self.expand();
                         self.searching = true;
+                        ev.stopPropagation();
                     }
                     ev.preventDefault();
                     break;
+                case $.ui.keyCode.LEFT:
+                     if(self.$input[0].selectionStart > 0) {
+                        ev.stopPropagation();
+                     }
+                     break;
                 case $.ui.keyCode.ESCAPE:
                     self.close();
                     self.searching = false;