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// 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 custom_elements_test;
import 'dart:async';
import 'dart:html';
import 'package:async_helper/async_minitest.dart';
import 'utils.dart';
class CustomMixin {
var mixinMethodCalled;
void mixinMethod() {
mixinMethodCalled = true;
}
}
class CustomType extends HtmlElement with CustomMixin {
bool createdCalled = false;
CustomType.created() : super.created() {
createdCalled = true;
customCreatedCount++;
}
void invokeMixinMethod() {
mixinMethod();
}
}
int customCreatedCount = 0;
int nextTagId = 0;
String get nextTag => 'x-type${nextTagId++}';
class NotAnElement {}
main() async {
await customElementsReady;
group('register', () {
test('register', () {
var tag = nextTag;
document.registerElement(tag, CustomType);
var element = new Element.tag(tag) as CustomType;
expect(element, isNotNull);
expect(element is CustomType, isTrue);
expect(element.createdCalled, isTrue);
});
test('register twice', () {
var tag = nextTag;
document.registerElement(tag, CustomType);
expect(() {
document.registerElement(tag, CustomType);
}, throws, reason: 'Cannot register a tag more than once.');
var newTag = nextTag;
document.registerElement(newTag, CustomType);
var element = new Element.tag(newTag) as CustomType;
expect(element, isNotNull);
expect(element is CustomType, isTrue);
});
test('register native', () {
expect(() {
document.registerElement(nextTag, BodyElement);
}, throws, reason: 'Cannot register a native element.');
});
test('register non-element', () {
expect(() {
document.registerElement(nextTag, NotAnElement);
}, throws, reason: 'Cannot register a non-element.');
});
});
// TODO(vsm): Modify this test once we agree on the proper semantics.
/*
group('preregister', () {
test('pre-registration construction', () {
var tag = nextTag;
var dom = new Element.html('<div><$tag></$tag></div>');
var preElement = dom.children[0];
expect(preElement, isNotNull);
expect(preElement is HtmlElement, isTrue);
expect(preElement is CustomType, isFalse);
var firedOnPre = false;
preElement.onFocus.listen((_) {
firedOnPre = true;
});
document.registerElement(tag, CustomType);
upgradeCustomElements(dom);
var postElement = dom.children[0];
expect(postElement, isNotNull);
expect(postElement is CustomType, isTrue);
expect(postElement.createdCalled, isTrue);
// Element from first query remains an UnknownElement.
expect(preElement is HtmlElement, isTrue);
expect(preElement.parent, dom);
expect(dom.children.length, 1);
var firedOnPost = false;
postElement.onFocus.listen((_) {
firedOnPost = true;
});
// Event handlers persist on old and new element.
postElement.dispatchEvent(new Event('focus'));
expect(firedOnPre, isTrue);
expect(firedOnPost, isTrue);
});
});*/
group('innerHtml', () {
test('query', () {
var tag = nextTag;
document.registerElement(tag, CustomType);
var element = new DivElement();
element.setInnerHtml('<$tag></$tag>',
treeSanitizer: new NullTreeSanitizer());
upgradeCustomElements(element);
document.body!.nodes.add(element);
var queried = querySelector(tag) as CustomType;
expect(queried, isNotNull);
expect(queried is CustomType, isTrue);
expect(queried.createdCalled, isTrue);
});
test('query id', () {
var tag = nextTag;
document.registerElement(tag, CustomType);
var element = new DivElement();
element.setInnerHtml('<$tag id="someid"></$tag>',
treeSanitizer: new NullTreeSanitizer());
upgradeCustomElements(element);
document.body!.nodes.add(element);
var queried = querySelector('#someid') as CustomType;
expect(queried, isNotNull);
expect(queried is CustomType, isTrue);
expect(queried.id, "someid");
});
});
group('lifecycle', () {
test('created', () {
int oldCount = customCreatedCount;
var tag = nextTag;
document.registerElement(tag, CustomType);
var element = new DivElement();
element.setInnerHtml('<$tag></$tag>',
treeSanitizer: new NullTreeSanitizer());
upgradeCustomElements(element);
document.body!.nodes.add(element);
expect(customCreatedCount, oldCount + 1);
});
});
group('mixins', () {
test('can invoke mixin methods', () {
var tag = nextTag;
document.registerElement(tag, CustomType);
var element = new Element.tag(tag) as CustomType;
element.invokeMixinMethod();
expect(element.mixinMethodCalled, isTrue);
});
});
}