本文整理汇总了TypeScript中angular2/src/facade/async.ObservableWrapper类的典型用法代码示例。如果您正苦于以下问题：TypeScript ObservableWrapper类的具体用法？TypeScript ObservableWrapper怎么用？TypeScript ObservableWrapper使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了ObservableWrapper类的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: transform
transform(docObs: any, args: List<any> = null): any {
if (!this._subscription) {
var self = this;
this._subscription = ObservableWrapper.subscribe(docObs, value => {
self._updateLatestValue(value);
});
return null;
}
if (!this._isUpdated) {
return this._latestReturnedValue;
}
this._isUpdated = false;
this._latestReturnedValue = this._latestValue;
return WrappedValue.wrap(this._latestValue);
}示例2: expect
.then((_) => {
ObservableWrapper.subscribe<string>(eventBus, (ev) => {
if (ev.startsWith('parent activate')) {
completer.resolve(true);
}
});
rtr.navigateByUrl('/parent-activate/child-activate')
.then((_) => {
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('parent {activate cmp}');
expect(log).toEqual([
'parent activate: null -> /parent-activate',
'activate: null -> /child-activate'
]);
async.done();
});
});示例3: it
it('should append an svg as child of self', inject([TestComponentBuilder, AsyncTestCompleter], (tcb: TestComponentBuilder, async) => {
let html = '<div class="logo" logo></div>';
ObservableWrapper.subscribe(backend.connections, (connection: MockConnection) => {
// console.log(connection);
connection.mockRespond(response)
});
tcb
.overrideTemplate(Test, html)
.createAsync(Test)
.then((rootTC) => {
rootTC.detectChanges();
let logo: Element = DOM.querySelector(rootTC.nativeElement, '.logo');
let prefixSelector = isNativeShadowDOMSupported ? '* /deep/ ' : ''; // soon use '>>>' https://www.chromestatus.com/features/6750456638341120
// console.log(logo.firstChild, prefixSelector);
// expect(logo.querySelector(prefixSelector + 'svg')).not.toBe(null);
async.done();
});
}));示例4: expect
.then((_) => {
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('routerCanDeactivate {A}');
expect(log).toEqual([]);
ObservableWrapper.subscribe<string>(eventBus, (ev) => {
if (ev.startsWith('routerCanDeactivate')) {
completer.resolve(false);
}
});
rtr.navigateByUrl('/a').then((_) => {
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('routerCanDeactivate {A}');
expect(log).toEqual(['routerCanDeactivate: /can-deactivate -> /a']);
async.done();
});
});示例5: it
it("should fire an event every time a control is updated", inject([AsyncTestCompleter], (async) => {
var loggedValues = [];
ObservableWrapper.subscribe(g.valueChanges, (value) => {
ListWrapper.push(loggedValues, value);
if (loggedValues.length == 2) {
expect(loggedValues).toEqual([{
"one": "new1",
"two": "old2"
}, {
"one": "new1",
"two": "new2"
}]);
async.done();
}
});
c1.updateValue("new1");
c2.updateValue("new2");
}));示例6: inject
inject([AsyncTestCompleter], (async) => {
// the only practical use-case to run a callback inside the zone is
// change detection after "onTurnDone". That's the only case tested.
var turnDone = false;
ObservableWrapper.subscribe(_zone.onTurnDone, (_) => {
_log.add('onTurnDone');
if (turnDone) return;
_zone.run(() => { microTask(() => {}); });
turnDone = true;
});
macroTask(() => { _zone.run(_log.fn('run')); });
macroTask(() => {
expect(_log.result()).toEqual('run; onTurnDone; onTurnDone');
async.done();
}, resultTimer);
}), testTimeout);示例7: inject
inject([AsyncTestCompleter], (async) => {
runNgZoneNoLog(() => macroTask(_log.fn('run')));
// the only practical use-case to run a callback inside the zone is
// change detection after "onMicrotaskEmpty". That's the only case tested.
var turnDone = false;
ObservableWrapper.subscribe(_zone.onMicrotaskEmpty, (_) => {
_log.add('onMyMicrotaskEmpty');
if (turnDone) return;
_zone.run(() => { scheduleMicroTask(() => {}); });
turnDone = true;
});
macroTask(() => {
expect(_log.result())
.toEqual('onUnstable; run; onMicrotaskEmpty; onMyMicrotaskEmpty; ' +
'onMicrotaskEmpty; onMyMicrotaskEmpty; onStable');
async.done();
}, resultTimer);
}), testTimeout);示例8: it
it('should ignore load/callback when disposed', inject([AsyncTestCompleter], async => {
var connection = new JSONPConnection(sampleRequest, new MockBrowserJsonp());
let spy = new SpyObject();
let loadSpy = spy.spy('load');
let errorSpy = spy.spy('error');
let returnSpy = spy.spy('cancelled');
ObservableWrapper.subscribe(connection.response, loadSpy, errorSpy, returnSpy);
connection.dispose();
expect(connection.readyState).toBe(ReadyStates.CANCELLED);
connection.finished('Fake data');
existingScripts[0].dispatchEvent('load');
TimerWrapper.setTimeout(() => {
expect(loadSpy).not.toHaveBeenCalled();
expect(errorSpy).not.toHaveBeenCalled();
expect(returnSpy).toHaveBeenCalled();
async.done();
}, 10);
}));示例9: it
it('should call onEventDone once at the end of event', inject([AsyncTestCompleter], (async) => {
// The test is set up in a way that causes the zone loop to run onTurnDone twice
// then verified that onEventDone is only called once at the end
logOnEventDone();
var times = 0;
ObservableWrapper.subscribe(_zone.onTurnDone, (_) => {
times++;
_log.add(`onTurnDone ${times}`);
if (times < 2) {
// Scheduling a microtask causes a second digest
_zone.run(() => { microTask(() => {}); });
}
});
macroTask(() => { _zone.run(_log.fn('run')); });
macroTask(() => {
expect(_log.result()).toEqual('run; onTurnDone 1; onTurnDone 2; onEventDone');
async.done();
}, resultTimer);
}), testTimeout);