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// Copyright (c) 2012, 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
// @dart = 2.9
library postmessage_js_test;
import 'dart:async';
import 'dart:html';
import 'dart:collection' show HashMap, SplayTreeMap;
import 'dart:typed_data';
import 'package:expect/minitest.dart';
import 'utils.dart';
final isMap = predicate((v) => v is Map);
void injectSource(String code) {
final script = new ScriptElement();
script.type = 'text/javascript';
script.innerHtml = code;
document.body.append(script);
}
Future go(String name, dynamic value) {
// Round-trip graph from Dart to JavaScript and back.
final JS_CODE = """
window.addEventListener('message', handler);
function handler(e) {
var data = e.data;
if (typeof data == 'string') return;
if (data.recipient != 'JS') return;
window.console.log(data.data);
var response = {recipient: 'DART', data: data.data};
window.removeEventListener('message', handler);
window.postMessage(response, '*');
}
""";
final done = new Completer();
var subscription;
subscription = window.onMessage.listen((e) {
var data = e.data;
if (data is String) return; // Messages from unit test protocol.
if (data['recipient'] != 'DART') return; // Not for me.
try {
subscription.cancel();
expect(data, isMap);
var returnedValue = data['data'];
expect(returnedValue, notEquals(value));
verifyGraph(value, returnedValue);
done.complete();
} catch (e) {
done.completeError('$name failed: $e');
}
});
injectSource(JS_CODE);
window.postMessage({'recipient': 'JS', 'data': value}, '*');
return done.future;
}
Future primitives() async {
await testJsToDartPostmessage();
var obj1 = {'a': 100, 'b': 's'};
var obj2 = {'x': obj1, 'y': obj1}; // DAG.
var obj3 = <String, dynamic>{};
obj3['a'] = 100;
obj3['b'] = obj3; // Cycle.
var obj4 = new SplayTreeMap<String, dynamic>(); // Different implementation.
obj4['a'] = 100;
obj4['b'] = 's';
var cyclic_list = <dynamic>[1, 2, 3];
cyclic_list[1] = cyclic_list;
await go('test_simple_list', [1, 2, 3]);
await go('test_map', obj1);
await go('test_DAG', obj2);
await go('test_cycle', obj3);
await go('test_simple_splay', obj4);
await go('const_array_1', const [
const [1],
const [2]
]);
await go('const_array_dag', const [
const [1],
const [1]
]);
await go('array_deferred_copy', [1, 2, 3, obj3, obj3, 6]);
await go('array_deferred_copy_2', [
1,
2,
3,
[4, 5, obj3],
[obj3, 6]
]);
await go('cyclic_list', cyclic_list);
}
Future testJsToDartPostmessage() {
// Pass an object literal from JavaScript. It should be seen as a Dart Map.
final JS_CODE = """
window.postMessage({eggs: 3}, '*');
""";
final done = new Completer();
var subscription = null;
subscription = window.onMessage.listen((e) {
var data = e.data;
if (data is String) return; // Messages from unit test protocol.
try {
subscription.cancel();
expect(data, isMap);
expect(data['eggs'], equals(3));
done.complete();
} catch (e) {
done.completeError(e);
}
});
injectSource(JS_CODE);
return done.future;
}
Future morePrimitives() async {
await testJsToDartNullPrototypeEventdata();
}
Future testJsToDartNullPrototypeEventdata() {
// Pass an object with a null prototype from JavaScript.
// It should be seen as a Dart Map.
final JS_CODE = """
// Call anonymous function to create a local scope.
(function() {
var o = Object.create(null);
o.eggs = 3;
var foo = new MessageEvent('stuff', {data: o});
window.dispatchEvent(foo);
})();
""";
final done = new Completer();
var subscription = null;
subscription = window.on['stuff'].listen((e) {
var data = (e as MessageEvent).data;
if (data is String) return; // Messages from unit test protocol.
try {
subscription.cancel();
expect(data, isMap);
expect(data['eggs'], equals(3));
done.complete();
} catch (e) {
done.completeError(e);
}
});
injectSource(JS_CODE);
return done.future;
}
Future typedArrays() async {
var array_buffer = new Uint8List(16).buffer;
var view_a = new Float32List.view(array_buffer, 0, 4);
var view_b = new Uint8List.view(array_buffer, 1, 13);
var typed_arrays_list = [view_a, array_buffer, view_b];
// Note that FF is failing this test because in the sent message:
// view_a.buffer == array_buffer
// But in the response:
// view_a.buffer != array_buffer
await go('typed_arrays_list', typed_arrays_list);
}
Future iframe() async {
await postMessageClonesData();
}
Future postMessageClonesData() {
var iframe = new IFrameElement();
var future = iframe.onLoad.first.then((_) {
iframe.contentWindow.postMessage(new HashMap<String, num>(), '*');
});
iframe.src = 'about:blank';
document.body.append(iframe);
return future;
}
main() async {
await primitives();
await morePrimitives();
await typedArrays();
await iframe();
}