本文整理汇总了TypeScript中app/shared/scroll-spy.service.ScrollSpyService类的典型用法代码示例。如果您正苦于以下问题：TypeScript service.ScrollSpyService类的具体用法？TypeScript service.ScrollSpyService怎么用？TypeScript service.ScrollSpyService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service.ScrollSpyService类的3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: it
it('should call `onResize()` if it is the first `ScrollSpiedElementGroup`', () => {
const actions: string[] = [];
const onResizeSpy = spyOn(ScrollSpyService.prototype as any, 'onResize')
.and.callFake(() => actions.push('onResize'));
const calibrateSpy = spyOn(ScrollSpiedElementGroup.prototype, 'calibrate')
.and.callFake(() => actions.push('calibrate'));
expect(onResizeSpy).not.toHaveBeenCalled();
scrollSpyService.spyOn([]);
expect(actions).toEqual(['onResize', 'calibrate']);
scrollSpyService.spyOn([]);
expect(actions).toEqual(['onResize', 'calibrate', 'calibrate']);
});示例2: it
it('should first re-calibrate if the content height has changed', () => {
const body = injector.get(DOCUMENT).body as any;
scrollSpyService.spyOn([]);
scrollSpyService.spyOn([]);
scrollSpyService.spyOn([]);
const spiedElemGroups: ScrollSpiedElementGroup[] = (scrollSpyService as any).spiedElementGroups;
const onScrollSpies = spiedElemGroups.map(group => spyOn(group, 'onScroll'));
const calibrateSpies = spiedElemGroups.map((group, i) => spyOn(group, 'calibrate')
.and.callFake(() => expect(onScrollSpies[i]).not.toHaveBeenCalled()));
calibrateSpies.forEach(spy => expect(spy).not.toHaveBeenCalled());
onScrollSpies.forEach(spy => expect(spy).not.toHaveBeenCalled());
// No content height change...
(scrollSpyService as any).onScroll();
calibrateSpies.forEach(spy => expect(spy).not.toHaveBeenCalled());
onScrollSpies.forEach(spy => expect(spy).toHaveBeenCalled());
onScrollSpies.forEach(spy => spy.calls.reset());
body.scrollHeight = 100;
// Viewport changed...
(scrollSpyService as any).onScroll();
calibrateSpies.forEach(spy => expect(spy).toHaveBeenCalled());
onScrollSpies.forEach(spy => expect(spy).toHaveBeenCalled());
});示例3: it
it('should only fire every 300ms', fakeAsync(() => {
scrollSpyService.spyOn([]);
window.dispatchEvent(new Event('scroll'));
tick(100);
expect(onScrollSpy).not.toHaveBeenCalled();
window.dispatchEvent(new Event('scroll'));
tick(100);
expect(onScrollSpy).not.toHaveBeenCalled();
window.dispatchEvent(new Event('scroll'));
tick(100);
expect(onScrollSpy).toHaveBeenCalledTimes(1);
onScrollSpy.calls.reset();
tick(150);
window.dispatchEvent(new Event('scroll'));
tick(100);
expect(onScrollSpy).not.toHaveBeenCalled();
window.dispatchEvent(new Event('scroll'));
tick(100);
expect(onScrollSpy).not.toHaveBeenCalled();
window.dispatchEvent(new Event('scroll'));
tick(100);
expect(onScrollSpy).toHaveBeenCalledTimes(1);
}));