refactor(calendar): remove circ dependency #4282

Author: hanastasov

projects/igniteui-angular/src/lib/calendar/calendar.component.ts

@@ -24,18 +24,14 @@ import { ICalendarDate, monthRange } from './calendar';
 import { CalendarView, IgxMonthPickerBase } from './month-picker-base';
 import { IgxMonthsViewComponent } from './months-view/months-view.component';
 import { IgxYearsViewComponent } from './years-view/years-view.component';
-import { IgxDaysViewComponent, IViewChangedArgs } from './days-view/days-view.component';
+import { IgxDaysViewComponent } from './days-view/days-view.component';
 import { interval, Subscription } from 'rxjs';
 import { takeUntil, debounce, skipLast, switchMap } from 'rxjs/operators';
 import { ScrollMonth } from './calendar-base';
+import { IMonthView, IViewChangedArgs } from './calendar.interface';
 
 let NEXT_ID = 0;
 
-export interface IMonthView {
-    value: Date | Date[];
-    viewDate: Date;
-}
-
 /**
  * **Ignite UI for Angular Calendar** -
  * [Documentation](https://www.infragistics.com/products/ignite-ui-angular/angular/components/calendar.html)

projects/igniteui-angular/src/lib/calendar/calendar.interface.ts

@@ -0,0 +1,16 @@
+/**
+ * @hidden
+ */
+export interface IMonthView {
+    value: Date | Date[];
+    viewDate: Date;
+}
+
+/**
+ * @hidden
+ */
+export interface IViewChangedArgs {
+    date: Date;
+    delta: number;
+    moveToFirst?: boolean;
+}

projects/igniteui-angular/src/lib/calendar/days-view/days-view.component.ts

@@ -9,23 +9,18 @@ import {
     HostBinding,
     DoCheck
 } from '@angular/core';
-import { ICalendarDate, isDateInRanges } from '../../calendar';
+import { ICalendarDate, isDateInRanges } from '../../calendar/calendar';
 import { trigger, transition, useAnimation } from '@angular/animations';
 import { slideInLeft, slideInRight } from '../../animations/main';
 import { NG_VALUE_ACCESSOR } from '@angular/forms';
 import { IgxDayItemComponent } from './day-item.component';
 import { DateRangeDescriptor, DateRangeType } from '../../core/dates';
 import { IgxCalendarBase, ScrollMonth, CalendarSelection } from '../calendar-base';
 import { isEqual } from '../../core/utils';
+import { IViewChangedArgs } from '../calendar.interface';
 
 let NEXT_ID = 0;
 
-export interface IViewChangedArgs {
-    date: Date;
-    delta: number;
-    moveToFirst?: boolean;
-}
-
 @Component({
     providers: [
         {