TypeScript scroll-spy.service.ScrollSpyService类代码示例

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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，您的评价将有助于我们的系统推荐出更棒的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']);
    });

开发者ID:DanielKucal，项目名称:angular，代码行数:16，代码来源:scroll-spy.service.spec.ts

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());
    });

开发者ID:DallanQ，项目名称:rxjs，代码行数:28，代码来源:scroll-spy.service.spec.ts

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);
    }));

开发者ID:rjamet，项目名称:angular，代码行数:30，代码来源:scroll-spy.service.spec.ts

注：本文中的app/shared/scroll-spy.service.ScrollSpyService类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。