| Index: LayoutTests/fast/dom/custom/attribute-changed-callback.html
|
| diff --git a/LayoutTests/fast/dom/custom/attribute-changed-callback.html b/LayoutTests/fast/dom/custom/attribute-changed-callback.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..cba80ae984c9da70d9af37ebbee4e1905baf3a8f
|
| --- /dev/null
|
| +++ b/LayoutTests/fast/dom/custom/attribute-changed-callback.html
|
| @@ -0,0 +1,66 @@
|
| +<!DOCTYPE html>
|
| +<script src="../../../resources/testharness.js"></script>
|
| +<script src="../../../resources/testharnessreport.js"></script>
|
| +<body>
|
| +<script>
|
| +test(function () {
|
| + var attributeChangedInvocations = 0;
|
| + function attributeChanged(_, _, _) {
|
| + attributeChangedInvocations++;
|
| + }
|
| +
|
| + var getterInvocations = 0;
|
| + function getter() {
|
| + getterInvocations++;
|
| + return attributeChanged;
|
| + }
|
| +
|
| + function failer() {
|
| + assert_unreached('the attribute changed callback must not be retrieved after registration');
|
| + }
|
| +
|
| + var proto = Object.create(HTMLElement.prototype, {
|
| + attributeChangedCallback: {
|
| + get: getter
|
| + }
|
| + });
|
| + var ctor = document.register('x-a', {prototype: proto});
|
| + assert_equals(getterInvocations, 1, 'the attribute changed callback must have been retrieved');
|
| +
|
| + proto.attributeChangedCallback = failer;
|
| + var element = new ctor();
|
| + element.setAttribute('a', 'b');
|
| + assert_equals(attributeChangedInvocations, 1, 'the attribute changed callback retrieved at registration must be invoked');
|
| +}, 'transfer attribute changed callback');
|
| +
|
| +test(function () {
|
| + var invocations = [];
|
| + function created() {
|
| + invocations.push('created');
|
| + }
|
| + function attributeChanged(name, oldValue, newValue) {
|
| + invocations.push(name + ': ' + oldValue + ' => ' + newValue);
|
| + }
|
| +
|
| + var proto = Object.create(HTMLElement.prototype);
|
| + proto.createdCallback = created;
|
| + proto.attributeChangedCallback = attributeChanged;
|
| + var B = document.register('x-b', {prototype: proto});
|
| +
|
| + var b = new B();
|
| + b.id = 'x';
|
| + assert_array_equals(invocations, ['created', 'id: null => x'], 'setting a reflected attribute should invoke the attributeChanged callback');
|
| +
|
| + invocations = [];
|
| + b.removeAttribute('id');
|
| + assert_array_equals(invocations, ['id: x => null'], 'removing an attribute should invoke the attributeChangedCallback');
|
| +
|
| + invocations = [];
|
| + b.setAttribute('data-x', 'y');
|
| + assert_array_equals(invocations, ['data-x: null => y'], 'setAttribute should invoke the attributeChangedCallback');
|
| +
|
| + invocations = [];
|
| + b.classList.toggle('z');
|
| + assert_array_equals(invocations, ['class: null => z'], 'changing the class attribute through classList should invoke the attributeChangedCallback');
|
| +}, 'add, change and remove an attribute');
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 18789002:
Implement Custom Elements' attributeChangedCallback. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk