Index: pkg/polymer_expressions/test/bindings_test.dart |
diff --git a/pkg/polymer_expressions/test/bindings_test.dart b/pkg/polymer_expressions/test/bindings_test.dart |
new file mode 100644 |
index 0000000000000000000000000000000000000000..155f2867dfa089a8c9316c776a6cbcf7e00ef6f6 |
--- /dev/null |
+++ b/pkg/polymer_expressions/test/bindings_test.dart |
@@ -0,0 +1,84 @@ |
+// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
+// for details. All rights reserved. Use of this source code is governed by a |
+// BSD-style license that can be found in the LICENSE file. |
+ |
+library bindings_test; |
+ |
+import 'dart:async'; |
+import 'dart:html'; |
+import 'package:mdv/mdv.dart' as mdv; |
+import 'package:observe/observe.dart'; |
+import 'package:observe/src/microtask.dart'; |
+import 'package:polymer_expressions/polymer_expressions.dart'; |
+import 'package:unittest/html_config.dart'; |
+import 'package:unittest/unittest.dart'; |
+ |
+main() { |
+ mdv.initialize(); |
+ useHtmlConfiguration(); |
+ |
+ group('cursor position tests', () { |
+ var testDiv; |
+ setUp(() { |
+ document.body.append(testDiv = new DivElement()); |
+ }); |
+ |
+ tearDown(() { |
+ testDiv.remove(); |
+ testDiv = null; |
+ }); |
+ |
+ test('cursor position test', wrapMicrotask(() { |
+ var model = new NotifyModel('abcde'); |
+ var template = new Element.html( |
+ '<template><input id="i1" value={{x}}></template>'); |
+ testDiv.append(template.createInstance(model, new PolymerExpressions())); |
+ |
+ performMicrotaskCheckpoint(); |
+ var el = testDiv.query("#i1"); |
+ var subscription = el.onInput.listen(expectAsync1((_) { |
+ performMicrotaskCheckpoint(); |
+ }, count: 1)); |
+ el.focus(); |
+ |
+ expect(el.value, 'abcde'); |
+ expect(model.x, 'abcde'); |
+ |
+ el.selectionStart = 3; |
+ el.selectionEnd = 3; |
+ expect(el.selectionStart, 3); |
+ expect(el.selectionEnd, 3); |
+ |
+ el.value = 'abc de'; |
+ // Updating the input value programatically (even to the same value in |
+ // Chrome) loses the selection position. |
+ expect(el.selectionStart, 6); |
+ expect(el.selectionEnd, 6); |
+ |
+ el.selectionStart = 4; |
+ el.selectionEnd = 4; |
+ |
+ expect(model.x, 'abcde'); |
+ el.dispatchEvent(new Event('input')); |
+ expect(model.x, 'abc de'); |
+ expect(el.value, 'abc de'); |
+ |
+ // But propagating observable values through reassign the value and |
+ // selection will be preserved. |
+ expect(el.selectionStart, 4); |
Siggi Cherem (dart-lang)
2013/10/10 00:49:48
without the fix, this returns 6.
|
+ expect(el.selectionEnd, 4); |
+ |
+ subscription.cancel(); |
+ })); |
+ }); |
+} |
+ |
+class NotifyModel extends ChangeNotifierBase { |
+ var _x; |
+ NotifyModel([this._x]); |
+ |
+ get x => _x; |
+ set x(value) { |
+ _x = notifyPropertyChange(const Symbol('x'), _x, value); |
+ } |
+} |