[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

@@ -477,6 +477,7 @@ var ListController = BasicController.extend({
                 this.model.discardChanges(recordId);
                 return this._confirmSave(recordId).then(reject);
             };
+            let dialog;
             if (validRecordIds.length > 0) {
                 let message;
                 if (nbInvalid === 0) {
@@ -488,13 +489,13 @@ 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(this, message, {
+                dialog = Dialog.confirm(this, message, {
                     confirm_callback: () => {
-                        this.model.saveRecords(recordId, validRecordIds, fieldName)
-                            .then(() => {
+                        return this.model.saveRecords(recordId, validRecordIds, fieldName)
+                            .then(async () => {
                                 this._updateButtons('readonly');
                                 const state = this.model.get(this.handle);
-                                this.renderer.updateState(state, {keepWidths: true});
+                                await this.renderer.updateState(state, {keepWidths: true});
                                 resolve(Object.keys(changes));
                             })
                             .guardedCatch(rejectAndDiscard);
@@ -502,10 +503,17 @@ var ListController = BasicController.extend({
                     cancel_callback: rejectAndDiscard,
                 });
             } else {
-                Dialog.alert(this, _t("No valid record to save"), {
+                dialog = Dialog.alert(this, _t("No valid record to save"), {
                     confirm_callback: rejectAndDiscard,
                 });
             }
+            dialog.on('closed', this, async () => {
+                // 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
+                await Promise.resolve();
+                this.renderer.focusCell(recordId, node);
+            });
         });
     },
     /**

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

@@ -319,6 +319,17 @@ 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

@@ -5308,7 +5308,7 @@ 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,
@@ -5364,6 +5364,8 @@ 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)'));
@@ -5376,6 +5378,8 @@ 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();
     });