[FIX] web: lists: focus last edited cell

Gave back focus to the last edited cell to increase usability with key nav.

Before this commit, after saving several records with multi edition in a list,
focus was lost (given to the body).

Now, last edited cell is given back the focus after multi editing.

addons/web/static/src/js/views/list/list_controller.js

@@ -396,6 +396,7 @@ var ListController = BasicController.extend({
         var nbInvalid = recordIds.length - validRecordIds.length;
 
         return new Promise(function (resolve, reject) {
+            var dialog;
             var rejectAndDiscard = function () {
                 self.model.discardChanges(recordId);
                 return self._confirmSave(recordId).then(reject);
@@ -411,24 +412,33 @@ var ListController = BasicController.extend({
                         _t("Do you want to set the value on the %d valid selected records? (%d invalid)"),
                         validRecordIds.length, nbInvalid);
                 }
-                Dialog.confirm(self, message, {
+                dialog = Dialog.confirm(self, message, {
                     confirm_callback: function () {
-                        self.model.saveRecords(recordId, validRecordIds, fieldName)
+                        return self.model.saveRecords(recordId, validRecordIds, fieldName)
                             .then(function () {
                                 self._updateButtons('readonly');
                                 var state = self.model.get(self.handle);
-                                self.renderer.updateState(state, {});
-                                resolve(Object.keys(changes));
+                                return self.renderer.updateState(state, {}).then(function () {
+                                    resolve(Object.keys(changes));
+                                });
                             })
                             .guardedCatch(rejectAndDiscard);
                     },
                     cancel_callback: rejectAndDiscard,
                 });
             } else {
-                Dialog.alert(self, _t("No valid record to save"), {
+                dialog = Dialog.alert(self, _t("No valid record to save"), {
                     confirm_callback: rejectAndDiscard,
                 });
             }
+            dialog.on('closed', self, function () {
+                // we need to wait for the dialog to be actually closed, but
+                // the 'closed' event is triggered just before, and it prevents
+                // from focussing the cell
+                Promise.resolve().then(function () {
+                    self.renderer.focusCell(recordId, node);
+                });
+            });
         });
     },
     /**

addons/web/static/src/js/views/list/list_editable_renderer.js

@@ -276,6 +276,17 @@ ListRenderer.include({
         var rowIndex = $row.prop('rowIndex') - 1;
         this._selectCell(rowIndex, 0);
     },
+    /**
+     * Gives focus to a specific cell, given its row and its related column.
+     *
+     * @param {string} recordId
+     * @param {Object} column
+     */
+    focusCell: function (recordId, column) {
+        var $row = this._getRow(recordId);
+        var cellIndex = this.columns.indexOf(column);
+        $row.find('.o_data_cell')[cellIndex].focus();
+    },
     /**
      * Returns the recordID associated to the line which is currently in edition
      * or null if there is no line in edition.

addons/web/static/tests/views/list_tests.js

@@ -4480,7 +4480,7 @@ QUnit.module('Views', {
     });
 
     QUnit.test('editable list view: multi edition', async function (assert) {
-        assert.expect(22);
+        assert.expect(24);
 
         var list = await createView({
             View: ListView,
@@ -4536,6 +4536,8 @@ QUnit.module('Views', {
         await testUtils.dom.click($('.modal .btn:contains(Cancel)'));
         assert.strictEqual(list.$('.o_data_row:eq(0) .o_data_cell').text(), 'yop10',
             "changes have been discarded and row is back to readonly");
+        assert.strictEqual(document.activeElement, list.$('.o_data_row:eq(0) .o_data_cell:eq(1)')[0],
+            "focus should be given to the most recently edited cell after discard");
         await testUtils.dom.click(list.$('.o_data_row:eq(0) .o_data_cell:eq(1)'));
         await testUtils.fields.editInput(list.$('.o_field_widget[name=int_field]'), 666);
         await testUtils.dom.click(list.$('.o_data_row:eq(1) .o_data_cell:eq(0)'));
@@ -4548,6 +4550,8 @@ QUnit.module('Views', {
         assert.strictEqual(list.$('.o_data_row:eq(1) .o_data_cell').text(), "blip666",
             "the second row should be updated");
         assert.containsNone(list, '.o_data_cell input.o_field_widget', "no field should be editable anymore");
+        assert.strictEqual(document.activeElement, list.$('.o_data_row:eq(0) .o_data_cell:eq(1)')[0],
+            "focus should be given to the most recently edited cell after confirm");
 
         list.destroy();
     });