ngx-infinite-scroll - npm Package Compare versions

Comparing version 8.0.2 to 9.0.0

public-api.d.ts

+/**
+ * Angular library starter.
+ * Build an Angular library compatible with AoT compilation & Tree shaking.
+ * Written by Roberto Simonetti.
+ * MIT license.
+ * https://github.com/robisim74/angular-library-starter
+ */
+/**
+ * Entry point for all public APIs of the package.
+ */
+export * from './src/ngx-infinite-scroll';

bundles/ngx-infinite-scroll.umd.js

@@ -9,3 +9,3 @@ (function (global, factory) {
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -62,3 +62,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -140,3 +140,3 @@ /** @type {?} */
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -172,3 +172,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -193,3 +193,3 @@ /**
         : windowElement.nativeElement;
-    return Object.assign({}, resolver, { container: container });
+    return Object.assign(Object.assign({}, resolver), { container: container });
 }
@@ -202,3 +202,6 @@ /**
     /** @type {?} */
-    var isWindow = ['Window', 'global'].some(function (obj) { return Object.prototype.toString.call(windowElement).includes(obj); });
+    var isWindow = ['Window', 'global'].some(( /**
+     * @param {?} obj
+     * @return {?}
+     */function (obj) { return Object.prototype.toString.call(windowElement).includes(obj); }));
     return isWindow;
@@ -328,3 +331,3 @@ }
     var offsetTop = axis.offsetTopKey();
-    if (isNaN(window[pageYOffset])) {
+    if (isNaN(window.pageYOffset)) {
         return getDocumentElement(isWindow, elem)[scrollTop];
@@ -341,3 +344,3 @@ }
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -432,3 +435,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -503,3 +506,3 @@ var ScrollState = /** @class */ (function () {
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -531,12 +534,26 @@ /**
     };
-    return attachScrollEvent(options).pipe(rxjs_operators.mergeMap(function () { return rxjs.of(calculatePoints(element, resolver)); }), rxjs_operators.map(function (positionStats) { return toInfiniteScrollParams(scrollState.lastScrollPosition, positionStats, distance); }), rxjs_operators.tap(function (_a) {
+    return attachScrollEvent(options).pipe(rxjs_operators.mergeMap(( /**
+     * @return {?}
+     */function () { return rxjs.of(calculatePoints(element, resolver)); })), rxjs_operators.map(( /**
+     * @param {?} positionStats
+     * @return {?}
+     */function (positionStats) { return toInfiniteScrollParams(scrollState.lastScrollPosition, positionStats, distance); })), rxjs_operators.tap(( /**
+     * @param {?} __0
+     * @return {?}
+     */function (_a) {
         var stats = _a.stats;
         return scrollState.updateScroll(stats.scrolled, stats.totalToScroll);
-    }), rxjs_operators.filter(function (_a) {
+    })), rxjs_operators.filter(( /**
+     * @param {?} __0
+     * @return {?}
+     */function (_a) {
         var fire = _a.fire, scrollDown = _a.scrollDown, totalToScroll = _a.stats.totalToScroll;
         return shouldTriggerEvents(config.alwaysCallback, fire, scrollState.isTriggeredScroll(totalToScroll, scrollDown));
-    }), rxjs_operators.tap(function (_a) {
+    })), rxjs_operators.tap(( /**
+     * @param {?} __0
+     * @return {?}
+     */function (_a) {
         var scrollDown = _a.scrollDown, totalToScroll = _a.stats.totalToScroll;
         scrollState.updateTriggeredFlag(totalToScroll, scrollDown);
-    }), rxjs_operators.map(toInfiniteScrollAction));
+    })), rxjs_operators.map(toInfiniteScrollAction));
 }
@@ -592,3 +609,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -652,3 +669,5 @@ var InfiniteScrollDirective = /** @class */ (function () {
         if (hasWindowDefined()) {
-            this.zone.runOutsideAngular(function () {
+            this.zone.runOutsideAngular(( /**
+             * @return {?}
+             */function () {
                 _this.disposeScroller = createScroller({
@@ -665,4 +684,9 @@ fromRoot: _this.fromRoot,
                     upDistance: _this.infiniteScrollUpDistance
-                }).subscribe(function (payload) { return _this.zone.run(function () { return _this.handleOnScroll(payload); }); });
-            });
+                }).subscribe(( /**
+                 * @param {?} payload
+                 * @return {?}
+                 */function (payload) { return _this.zone.run(( /**
+                 * @return {?}
+                 */function () { return _this.handleOnScroll(payload); })); }));
+            }));
         }
@@ -727,3 +751,3 @@ };
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -730,0 +754,0 @@ var InfiniteScrollModule = /** @class */ (function () {

bundles/ngx-infinite-scroll.umd.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"ngx-infinite-scroll.umd.js","sources":["../../src/modules/ngx-infinite-scroll.module.ts","../../src/modules/infinite-scroll.directive.ts","../../src/services/scroll-register.ts","../../src/services/scroll-state.ts","../../src/services/scroll-resolver.ts","../../src/services/position-resolver.ts","../../src/services/event-trigger.ts","../../src/services/axis-resolver.ts","../../src/services/ngx-ins-utils.ts"],"sourcesContent":["import { NgModule } from '@angular/core';\n\nimport { InfiniteScrollDirective } from './infinite-scroll.directive';\n\n@NgModule({\n  declarations: [InfiniteScrollDirective],\n  exports: [InfiniteScrollDirective],\n  imports: [],\n  providers: []\n})\nexport class InfiniteScrollModule { }\n","import {\n  AfterViewInit,\n  Directive,\n  ElementRef,\n  EventEmitter,\n  Input,\n  NgZone,\n  OnChanges,\n  OnDestroy,\n  Output,\n  SimpleChanges\n} from '@angular/core';\nimport {Subscription} from 'rxjs';\n\nimport { IInfiniteScrollEvent, IInfiniteScrollAction } from '../models';\nimport { hasWindowDefined, inputPropChanged } from '../services/ngx-ins-utils';\nimport { createScroller, InfiniteScrollActions } from '../services/scroll-register';\n\n@Directive({\n  selector: '[infiniteScroll], [infinite-scroll], [data-infinite-scroll]'\n})\nexport class InfiniteScrollDirective\n  implements OnDestroy, OnChanges, AfterViewInit {\n  @Output() scrolled = new EventEmitter<IInfiniteScrollEvent>();\n  @Output() scrolledUp = new EventEmitter<IInfiniteScrollEvent>();\n\n  @Input() infiniteScrollDistance: number = 2;\n  @Input() infiniteScrollUpDistance: number = 1.5;\n  @Input() infiniteScrollThrottle: number = 150;\n  @Input() infiniteScrollDisabled: boolean = false;\n  @Input() infiniteScrollContainer: any = null;\n  @Input() scrollWindow: boolean = true;\n  @Input() immediateCheck: boolean = false;\n  @Input() horizontal: boolean = false;\n  @Input() alwaysCallback: boolean = false;\n  @Input() fromRoot: boolean = false;\n\n  private disposeScroller: Subscription;\n\n  constructor(private element: ElementRef, private zone: NgZone) { }\n\n  ngAfterViewInit() {\n    if (!this.infiniteScrollDisabled) {\n      this.setup();\n    }\n  }\n\n  ngOnChanges({ infiniteScrollContainer, infiniteScrollDisabled, infiniteScrollDistance }: SimpleChanges) {\n    const containerChanged = inputPropChanged(infiniteScrollContainer);\n    const disabledChanged = inputPropChanged(infiniteScrollDisabled);\n    const distanceChanged = inputPropChanged(infiniteScrollDistance);\n    const shouldSetup = (!disabledChanged && !this.infiniteScrollDisabled) ||\n      (disabledChanged && !infiniteScrollDisabled.currentValue) || distanceChanged;\n\n    if (containerChanged || disabledChanged || distanceChanged) {\n      this.destroyScroller();\n      if (shouldSetup) {\n        this.setup();\n      }\n    }\n  }\n\n  setup() {\n    if (hasWindowDefined()) {\n      this.zone.runOutsideAngular(() => {\n        this.disposeScroller = createScroller({\n          fromRoot: this.fromRoot,\n          alwaysCallback: this.alwaysCallback,\n          disable: this.infiniteScrollDisabled,\n          downDistance: this.infiniteScrollDistance,\n          element: this.element,\n          horizontal: this.horizontal,\n          scrollContainer: this.infiniteScrollContainer,\n          scrollWindow: this.scrollWindow,\n          throttle: this.infiniteScrollThrottle,\n          upDistance: this.infiniteScrollUpDistance\n        }).subscribe((payload: any) => this.zone.run(() => this.handleOnScroll(payload)));\n      });\n    }\n  }\n\n  handleOnScroll({ type, payload }: IInfiniteScrollAction) {\n    switch (type) {\n      case InfiniteScrollActions.DOWN:\n        return this.scrolled.emit(payload);\n\n      case InfiniteScrollActions.UP:\n        return this.scrolledUp.emit(payload);\n\n      default:\n        return;\n    }\n  }\n\n  ngOnDestroy() {\n    this.destroyScroller();\n  }\n\n  destroyScroller() {\n    if (this.disposeScroller) {\n      this.disposeScroller.unsubscribe();\n    }\n  }\n}\n","import { Observable, of, fromEvent } from 'rxjs';\nimport { map, mergeMap, tap, sampleTime, filter } from 'rxjs/operators';\n\nimport * as Models from '../models';\nimport { AxisResolver } from './axis-resolver';\nimport { shouldTriggerEvents } from './event-trigger';\nimport { resolveContainerElement } from './ngx-ins-utils';\nimport { calculatePoints, createResolver } from './position-resolver';\nimport * as ScrollResolver from './scroll-resolver';\nimport { ScrollState } from './scroll-state';\n\nexport function createScroller(config: Models.IScroller) {\n  const { scrollContainer, scrollWindow, element, fromRoot } = config;\n  const resolver = createResolver({\n    axis: new AxisResolver(!config.horizontal),\n    windowElement: resolveContainerElement(\n      scrollContainer,\n      scrollWindow,\n      element,\n      fromRoot\n    )\n  });\n  const scrollState = new ScrollState({\n    totalToScroll: calculatePoints(element, resolver)\n  });\n  const options: Models.IScrollRegisterConfig = {\n    container: resolver.container,\n    throttle: config.throttle\n  };\n  const distance = {\n    up: config.upDistance,\n    down: config.downDistance\n  };\n  return attachScrollEvent(options).pipe(\n    mergeMap(() => of(calculatePoints(element, resolver))),\n    map((positionStats: Models.IPositionStats) =>\n      toInfiniteScrollParams(\n        scrollState.lastScrollPosition,\n        positionStats,\n        distance\n      )\n    ),\n    tap(({ stats }: Models.IScrollParams) =>\n      scrollState.updateScroll(stats.scrolled, stats.totalToScroll)\n    ),\n    filter(\n      ({ fire, scrollDown, stats: { totalToScroll } }: Models.IScrollParams) =>\n        shouldTriggerEvents(\n          config.alwaysCallback,\n          fire,\n          scrollState.isTriggeredScroll(totalToScroll, scrollDown)\n        )\n    ),\n    tap(({ scrollDown, stats: { totalToScroll } }: Models.IScrollParams) => {\n      scrollState.updateTriggeredFlag(totalToScroll, scrollDown);\n    }),\n    map(toInfiniteScrollAction)\n  );\n}\n\nexport function attachScrollEvent(\n  options: Models.IScrollRegisterConfig\n): Observable<{}> {\n  let obs = fromEvent(options.container, 'scroll');\n  // For an unknown reason calling `sampleTime()` causes trouble for many users, even with `options.throttle = 0`.\n  // Let's avoid calling the function unless needed.\n  // See https://github.com/orizens/ngx-infinite-scroll/issues/198\n  if (options.throttle) {\n    obs = obs.pipe(sampleTime(options.throttle));\n  }\n  return obs;\n}\n\nexport function toInfiniteScrollParams(\n  lastScrollPosition: number,\n  stats: Models.IPositionStats,\n  distance: Models.IScrollerDistance\n): Models.IScrollParams {\n  const { scrollDown, fire } = ScrollResolver.getScrollStats(\n    lastScrollPosition,\n    stats,\n    distance\n  );\n  return {\n    scrollDown,\n    fire,\n    stats\n  };\n}\n\nexport const InfiniteScrollActions = {\n  DOWN: '[NGX_ISE] DOWN',\n  UP: '[NGX_ISE] UP'\n};\n\nexport function toInfiniteScrollAction(\n  response: Models.IScrollParams\n): Models.IInfiniteScrollAction {\n  const {\n    scrollDown,\n    stats: { scrolled: currentScrollPosition }\n  } = response;\n  return {\n    type: scrollDown ? InfiniteScrollActions.DOWN : InfiniteScrollActions.UP,\n    payload: {\n      currentScrollPosition\n    }\n  };\n}\n","import { IScrollState, IScrollerDistance } from '../models';\n\nexport class ScrollState implements IScrollState {\n  lastScrollPosition = 0;\n  lastTotalToScroll = 0;\n  totalToScroll = 0;\n  triggered: IScrollerDistance = {\n    down: 0,\n    up: 0\n  };\n\n  constructor({ totalToScroll }) {\n    this.totalToScroll = totalToScroll;\n  }\n\n  updateScrollPosition(position: number) {\n    return (this.lastScrollPosition = position);\n  }\n\n  updateTotalToScroll(totalToScroll: number) {\n    if (this.lastTotalToScroll !== totalToScroll) {\n      this.lastTotalToScroll = this.totalToScroll;\n      this.totalToScroll = totalToScroll;\n    }\n  }\n\n  updateScroll(scrolledUntilNow: number, totalToScroll: number) {\n    this.updateScrollPosition(scrolledUntilNow);\n    this.updateTotalToScroll(totalToScroll);\n  }\n\n  updateTriggeredFlag(scroll, isScrollingDown: boolean) {\n    if (isScrollingDown) {\n      this.triggered.down = scroll;\n    } else {\n      this.triggered.up = scroll;\n    }\n  }\n\n  isTriggeredScroll(totalToScroll, isScrollingDown: boolean) {\n    return isScrollingDown\n      ? this.triggered.down === totalToScroll\n      : this.triggered.up === totalToScroll;\n  }\n}\n","import { IPositionStats, IScrollState, IScrollerDistance } from '../models';\n\nexport function shouldFireScrollEvent(\n  container: IPositionStats,\n  distance: IScrollerDistance,\n  scrollingDown: boolean\n) {\n  let remaining: number;\n  let containerBreakpoint: number;\n  if (container.totalToScroll <= 0) {\n    return false;\n  }\n\n  const scrolledUntilNow = container.isWindow ? container.scrolled : container.height + container.scrolled;\n  if (scrollingDown) {\n    remaining =\n      (container.totalToScroll - scrolledUntilNow) / container.totalToScroll;\n    containerBreakpoint = distance.down / 10;\n  } else {\n    const totalHiddenContentHeight =\n      container.scrolled + (container.totalToScroll - scrolledUntilNow);\n    remaining = container.scrolled / totalHiddenContentHeight;\n    containerBreakpoint = distance.up / 10;\n  }\n\n  const shouldFireEvent: boolean = remaining <= containerBreakpoint;\n  return shouldFireEvent;\n}\n\nexport function isScrollingDownwards(\n  lastScrollPosition: number,\n  container: IPositionStats\n) {\n  return lastScrollPosition < container.scrolled;\n}\n\nexport function getScrollStats(\n  lastScrollPosition: number,\n  container: IPositionStats,\n  distance: IScrollerDistance\n) {\n  const scrollDown = isScrollingDownwards(lastScrollPosition, container);\n  return {\n    fire: shouldFireScrollEvent(container, distance, scrollDown),\n    scrollDown\n  };\n}\n\nexport function updateScrollPosition(\n  position: number,\n  scrollState: IScrollState\n) {\n  return (scrollState.lastScrollPosition = position);\n}\n\nexport function updateTotalToScroll(\n  totalToScroll: number,\n  scrollState: IScrollState\n) {\n  if (scrollState.lastTotalToScroll !== totalToScroll) {\n    scrollState.lastTotalToScroll = scrollState.totalToScroll;\n    scrollState.totalToScroll = totalToScroll;\n  }\n}\n\nexport function isSameTotalToScroll(scrollState: IScrollState) {\n  return scrollState.totalToScroll === scrollState.lastTotalToScroll;\n}\n\nexport function updateTriggeredFlag(\n  scroll,\n  scrollState: IScrollState,\n  triggered: boolean,\n  isScrollingDown: boolean\n) {\n  if (isScrollingDown) {\n    scrollState.triggered.down = scroll;\n  } else {\n    scrollState.triggered.up = scroll;\n  }\n}\n\nexport function isTriggeredScroll(\n  totalToScroll,\n  scrollState: IScrollState,\n  isScrollingDown: boolean\n) {\n  return isScrollingDown\n    ? scrollState.triggered.down === totalToScroll\n    : scrollState.triggered.up === totalToScroll;\n}\n\nexport function updateScrollState(\n  scrollState: IScrollState,\n  scrolledUntilNow: number,\n  totalToScroll: number\n) {\n  updateScrollPosition(scrolledUntilNow, scrollState);\n  updateTotalToScroll(totalToScroll, scrollState);\n  // const isSameTotal = isSameTotalToScroll(scrollState);\n  // if (!isSameTotal) {\n  //   updateTriggeredFlag(scrollState, false, isScrollingDown);\n  // }\n}\n","import { ElementRef } from '@angular/core';\n\nimport { ContainerRef, IPositionElements, IPositionStats, IResolver } from '../models';\nimport { AxisResolver } from './axis-resolver';\n\nexport function createResolver({\n  windowElement,\n  axis\n}: IPositionElements): IResolver {\n  return createResolverWithContainer(\n    { axis, isWindow: isElementWindow(windowElement) },\n    windowElement\n  );\n}\n\nexport function createResolverWithContainer(\n  resolver,\n  windowElement: ContainerRef\n) {\n  const container =\n    resolver.isWindow || (windowElement && !windowElement.nativeElement)\n      ? windowElement\n      : windowElement.nativeElement;\n  return { ...resolver, container };\n}\n\nexport function isElementWindow(windowElement: ContainerRef): boolean {\n  const isWindow = ['Window', 'global'].some((obj: string) =>\n    Object.prototype.toString.call(windowElement).includes(obj)\n  );\n  return isWindow;\n}\n\nexport function getDocumentElement(isContainerWindow: boolean, windowElement) {\n  return isContainerWindow ? windowElement.document.documentElement : null;\n}\n\nexport function calculatePoints(element: ElementRef, resolver: IResolver) {\n  const height = extractHeightForElement(resolver);\n  return resolver.isWindow\n    ? calculatePointsForWindow(height, element, resolver)\n    : calculatePointsForElement(height, element, resolver);\n}\n\nexport function calculatePointsForWindow(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container, isWindow } = resolver;\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  // scrolled until now / current y point\n  const scrolled =\n    height +\n    getElementPageYOffset(\n      getDocumentElement(isWindow, container),\n      axis,\n      isWindow\n    );\n  // total height / most bottom y point\n  const nativeElementHeight = getElementHeight(\n    element.nativeElement,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n  const totalToScroll =\n    getElementOffsetTop(element.nativeElement, axis, isWindow) +\n    nativeElementHeight;\n  return { height, scrolled, totalToScroll, isWindow };\n}\n\nexport function calculatePointsForElement(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container } = resolver;\n  // perhaps use container.offsetTop instead of 'scrollTop'\n  const scrolled = container[axis.scrollTopKey()];\n  const totalToScroll = container[axis.scrollHeightKey()];\n  return { height, scrolled, totalToScroll, isWindow: false };\n}\n\nexport function extractHeightPropKeys(axis: AxisResolver) {\n  return {\n    offsetHeightKey: axis.offsetHeightKey(),\n    clientHeightKey: axis.clientHeightKey()\n  };\n}\n\nexport function extractHeightForElement({\n  container,\n  isWindow,\n  axis\n}: IResolver) {\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  return getElementHeight(\n    container,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n}\nexport function getElementHeight(\n  elem: any,\n  isWindow: boolean,\n  offsetHeightKey: string,\n  clientHeightKey: string\n) {\n  if (isNaN(elem[offsetHeightKey])) {\n    const docElem = getDocumentElement(isWindow, elem);\n    return docElem ? docElem[clientHeightKey] : 0;\n  } else {\n    return elem[offsetHeightKey];\n  }\n}\n\nexport function getElementOffsetTop(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const topKey = axis.topKey();\n  // elem = elem.nativeElement;\n  if (!elem.getBoundingClientRect) {\n    // || elem.css('none')) {\n    return;\n  }\n  return (\n    elem.getBoundingClientRect()[topKey] +\n    getElementPageYOffset(elem, axis, isWindow)\n  );\n}\n\nexport function getElementPageYOffset(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const pageYOffset = axis.pageYOffsetKey();\n  const scrollTop = axis.scrollTopKey();\n  const offsetTop = axis.offsetTopKey();\n\n  if (isNaN(window[pageYOffset])) {\n    return getDocumentElement(isWindow, elem)[scrollTop];\n  } else if (elem.ownerDocument) {\n    return elem.ownerDocument.defaultView[pageYOffset];\n  } else {\n    return elem[offsetTop];\n  }\n}\n","import { IInfiniteScrollEvent, IPositionStats } from '../models';\n\nexport interface IScrollerProps extends IDistanceRange {\n  container: IPositionStats;\n  alwaysCallback: boolean;\n  disabled: boolean;\n}\n\nexport interface ITriggerEvents {\n  down: (event: any) => any;\n  up: (event: any) => any;\n}\n\nexport interface IDistanceRange {\n  down: number;\n  up: number;\n}\n\nexport interface IScrollConfig {\n  alwaysCallback: boolean;\n  shouldFireScrollEvent: boolean;\n}\n\nexport function shouldTriggerEvents(\n  alwaysCallback: boolean,\n  shouldFireScrollEvent: boolean,\n  isTriggeredCurrentTotal: boolean\n) {\n  if (alwaysCallback && shouldFireScrollEvent) {\n    return true;\n  }\n  if (!isTriggeredCurrentTotal && shouldFireScrollEvent) {\n    return true;\n  }\n  return false;\n}\n","const VerticalProps = {\n  clientHeight: \"clientHeight\",\n  offsetHeight: \"offsetHeight\",\n  scrollHeight: \"scrollHeight\",\n  pageYOffset: \"pageYOffset\",\n  offsetTop: \"offsetTop\",\n  scrollTop: \"scrollTop\",\n  top: \"top\"\n};\n\nconst HorizontalProps = {\n  clientHeight: \"clientWidth\",\n  offsetHeight: \"offsetWidth\",\n  scrollHeight: \"scrollWidth\",\n  pageYOffset: \"pageXOffset\",\n  offsetTop: \"offsetLeft\",\n  scrollTop: \"scrollLeft\",\n  top: \"left\"\n};\n\nexport class AxisResolver {\n  private propsMap: any;\n\n  constructor(private vertical: boolean = true) {\n    this.propsMap = vertical ? VerticalProps : HorizontalProps;\n  }\n  clientHeightKey() {\n    return this.propsMap.clientHeight;\n  }\n  offsetHeightKey() {\n    return this.propsMap.offsetHeight;\n  }\n  scrollHeightKey() {\n    return this.propsMap.scrollHeight;\n  }\n  pageYOffsetKey() {\n    return this.propsMap.pageYOffset;\n  }\n  offsetTopKey() {\n    return this.propsMap.offsetTop;\n  }\n  scrollTopKey() {\n    return this.propsMap.scrollTop;\n  }\n  topKey() {\n    return this.propsMap.top;\n  }\n}\n","import { ElementRef, SimpleChange } from '@angular/core';\n\nexport function resolveContainerElement(\n  selector: string | any,\n  scrollWindow,\n  defaultElement,\n  fromRoot: boolean\n): any {\n  const hasWindow = window && !!window.document && window.document.documentElement;\n  let container = hasWindow && scrollWindow ? window : defaultElement;\n  if (selector) {\n    const containerIsString =\n      selector && hasWindow && typeof selector === 'string';\n    container = containerIsString\n      ? findElement(selector, defaultElement.nativeElement, fromRoot)\n      : selector;\n    if (!container) {\n      throw new Error('ngx-infinite-scroll {resolveContainerElement()}: selector for');\n    }\n  }\n  return container;\n}\n\nexport function findElement(\n  selector: string | any,\n  customRoot: ElementRef | any,\n  fromRoot: boolean\n) {\n  const rootEl = fromRoot ? window.document : customRoot;\n  return rootEl.querySelector(selector);\n}\n\nexport function inputPropChanged(prop: SimpleChange): boolean {\n  return prop && !prop.firstChange;\n}\n\nexport function hasWindowDefined(): boolean {\n  return typeof window !== 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+{"version":3,"file":"ngx-infinite-scroll.umd.js","sources":["../../src/modules/ngx-infinite-scroll.module.ts","../../src/modules/infinite-scroll.directive.ts","../../src/services/scroll-register.ts","../../src/services/scroll-state.ts","../../src/services/scroll-resolver.ts","../../src/services/position-resolver.ts","../../src/services/event-trigger.ts","../../src/services/axis-resolver.ts","../../src/services/ngx-ins-utils.ts"],"sourcesContent":["import { NgModule } from '@angular/core';\n\nimport { InfiniteScrollDirective } from './infinite-scroll.directive';\n\n@NgModule({\n  declarations: [InfiniteScrollDirective],\n  exports: [InfiniteScrollDirective],\n  imports: [],\n  providers: []\n})\nexport class InfiniteScrollModule { }\n","import {\n  AfterViewInit,\n  Directive,\n  ElementRef,\n  EventEmitter,\n  Input,\n  NgZone,\n  OnChanges,\n  OnDestroy,\n  Output,\n  SimpleChanges\n} from '@angular/core';\nimport {Subscription} from 'rxjs';\n\nimport { IInfiniteScrollEvent, IInfiniteScrollAction } from '../models';\nimport { hasWindowDefined, inputPropChanged } from '../services/ngx-ins-utils';\nimport { createScroller, InfiniteScrollActions } from '../services/scroll-register';\n\n@Directive({\n  selector: '[infiniteScroll], [infinite-scroll], [data-infinite-scroll]'\n})\nexport class InfiniteScrollDirective\n  implements OnDestroy, OnChanges, AfterViewInit {\n  @Output() scrolled = new EventEmitter<IInfiniteScrollEvent>();\n  @Output() scrolledUp = new EventEmitter<IInfiniteScrollEvent>();\n\n  @Input() infiniteScrollDistance: number = 2;\n  @Input() infiniteScrollUpDistance: number = 1.5;\n  @Input() infiniteScrollThrottle: number = 150;\n  @Input() infiniteScrollDisabled: boolean = false;\n  @Input() infiniteScrollContainer: any = null;\n  @Input() scrollWindow: boolean = true;\n  @Input() immediateCheck: boolean = false;\n  @Input() horizontal: boolean = false;\n  @Input() alwaysCallback: boolean = false;\n  @Input() fromRoot: boolean = false;\n\n  private disposeScroller: Subscription;\n\n  constructor(private element: ElementRef, private zone: NgZone) { }\n\n  ngAfterViewInit() {\n    if (!this.infiniteScrollDisabled) {\n      this.setup();\n    }\n  }\n\n  ngOnChanges({ infiniteScrollContainer, infiniteScrollDisabled, infiniteScrollDistance }: SimpleChanges) {\n    const containerChanged = inputPropChanged(infiniteScrollContainer);\n    const disabledChanged = inputPropChanged(infiniteScrollDisabled);\n    const distanceChanged = inputPropChanged(infiniteScrollDistance);\n    const shouldSetup = (!disabledChanged && !this.infiniteScrollDisabled) ||\n      (disabledChanged && !infiniteScrollDisabled.currentValue) || distanceChanged;\n\n    if (containerChanged || disabledChanged || distanceChanged) {\n      this.destroyScroller();\n      if (shouldSetup) {\n        this.setup();\n      }\n    }\n  }\n\n  setup() {\n    if (hasWindowDefined()) {\n      this.zone.runOutsideAngular(() => {\n        this.disposeScroller = createScroller({\n          fromRoot: this.fromRoot,\n          alwaysCallback: this.alwaysCallback,\n          disable: this.infiniteScrollDisabled,\n          downDistance: this.infiniteScrollDistance,\n          element: this.element,\n          horizontal: this.horizontal,\n          scrollContainer: this.infiniteScrollContainer,\n          scrollWindow: this.scrollWindow,\n          throttle: this.infiniteScrollThrottle,\n          upDistance: this.infiniteScrollUpDistance\n        }).subscribe((payload: any) => this.zone.run(() => this.handleOnScroll(payload)));\n      });\n    }\n  }\n\n  handleOnScroll({ type, payload }: IInfiniteScrollAction) {\n    switch (type) {\n      case InfiniteScrollActions.DOWN:\n        return this.scrolled.emit(payload);\n\n      case InfiniteScrollActions.UP:\n        return this.scrolledUp.emit(payload);\n\n      default:\n        return;\n    }\n  }\n\n  ngOnDestroy() {\n    this.destroyScroller();\n  }\n\n  destroyScroller() {\n    if (this.disposeScroller) {\n      this.disposeScroller.unsubscribe();\n    }\n  }\n}\n","import { Observable, of, fromEvent } from 'rxjs';\nimport { map, mergeMap, tap, sampleTime, filter } from 'rxjs/operators';\n\nimport * as Models from '../models';\nimport { AxisResolver } from './axis-resolver';\nimport { shouldTriggerEvents } from './event-trigger';\nimport { resolveContainerElement } from './ngx-ins-utils';\nimport { calculatePoints, createResolver } from './position-resolver';\nimport * as ScrollResolver from './scroll-resolver';\nimport { ScrollState } from './scroll-state';\n\nexport function createScroller(config: Models.IScroller) {\n  const { scrollContainer, scrollWindow, element, fromRoot } = config;\n  const resolver = createResolver({\n    axis: new AxisResolver(!config.horizontal),\n    windowElement: resolveContainerElement(\n      scrollContainer,\n      scrollWindow,\n      element,\n      fromRoot\n    )\n  });\n  const scrollState = new ScrollState({\n    totalToScroll: calculatePoints(element, resolver)\n  });\n  const options: Models.IScrollRegisterConfig = {\n    container: resolver.container,\n    throttle: config.throttle\n  };\n  const distance = {\n    up: config.upDistance,\n    down: config.downDistance\n  };\n  return attachScrollEvent(options).pipe(\n    mergeMap(() => of(calculatePoints(element, resolver))),\n    map((positionStats: Models.IPositionStats) =>\n      toInfiniteScrollParams(\n        scrollState.lastScrollPosition,\n        positionStats,\n        distance\n      )\n    ),\n    tap(({ stats }: Models.IScrollParams) =>\n      scrollState.updateScroll(stats.scrolled, stats.totalToScroll)\n    ),\n    filter(\n      ({ fire, scrollDown, stats: { totalToScroll } }: Models.IScrollParams) =>\n        shouldTriggerEvents(\n          config.alwaysCallback,\n          fire,\n          scrollState.isTriggeredScroll(totalToScroll, scrollDown)\n        )\n    ),\n    tap(({ scrollDown, stats: { totalToScroll } }: Models.IScrollParams) => {\n      scrollState.updateTriggeredFlag(totalToScroll, scrollDown);\n    }),\n    map(toInfiniteScrollAction)\n  );\n}\n\nexport function attachScrollEvent(\n  options: Models.IScrollRegisterConfig\n): Observable<{}> {\n  let obs = fromEvent(options.container, 'scroll');\n  // For an unknown reason calling `sampleTime()` causes trouble for many users, even with `options.throttle = 0`.\n  // Let's avoid calling the function unless needed.\n  // See https://github.com/orizens/ngx-infinite-scroll/issues/198\n  if (options.throttle) {\n    obs = obs.pipe(sampleTime(options.throttle));\n  }\n  return obs;\n}\n\nexport function toInfiniteScrollParams(\n  lastScrollPosition: number,\n  stats: Models.IPositionStats,\n  distance: Models.IScrollerDistance\n): Models.IScrollParams {\n  const { scrollDown, fire } = ScrollResolver.getScrollStats(\n    lastScrollPosition,\n    stats,\n    distance\n  );\n  return {\n    scrollDown,\n    fire,\n    stats\n  };\n}\n\nexport const InfiniteScrollActions = {\n  DOWN: '[NGX_ISE] DOWN',\n  UP: '[NGX_ISE] UP'\n};\n\nexport function toInfiniteScrollAction(\n  response: Models.IScrollParams\n): Models.IInfiniteScrollAction {\n  const {\n    scrollDown,\n    stats: { scrolled: currentScrollPosition }\n  } = response;\n  return {\n    type: scrollDown ? InfiniteScrollActions.DOWN : InfiniteScrollActions.UP,\n    payload: {\n      currentScrollPosition\n    }\n  };\n}\n","import { IScrollState, IScrollerDistance } from '../models';\n\nexport class ScrollState implements IScrollState {\n  lastScrollPosition = 0;\n  lastTotalToScroll = 0;\n  totalToScroll = 0;\n  triggered: IScrollerDistance = {\n    down: 0,\n    up: 0\n  };\n\n  constructor({ totalToScroll }) {\n    this.totalToScroll = totalToScroll;\n  }\n\n  updateScrollPosition(position: number) {\n    return (this.lastScrollPosition = position);\n  }\n\n  updateTotalToScroll(totalToScroll: number) {\n    if (this.lastTotalToScroll !== totalToScroll) {\n      this.lastTotalToScroll = this.totalToScroll;\n      this.totalToScroll = totalToScroll;\n    }\n  }\n\n  updateScroll(scrolledUntilNow: number, totalToScroll: number) {\n    this.updateScrollPosition(scrolledUntilNow);\n    this.updateTotalToScroll(totalToScroll);\n  }\n\n  updateTriggeredFlag(scroll, isScrollingDown: boolean) {\n    if (isScrollingDown) {\n      this.triggered.down = scroll;\n    } else {\n      this.triggered.up = scroll;\n    }\n  }\n\n  isTriggeredScroll(totalToScroll, isScrollingDown: boolean) {\n    return isScrollingDown\n      ? this.triggered.down === totalToScroll\n      : this.triggered.up === totalToScroll;\n  }\n}\n","import { IPositionStats, IScrollState, IScrollerDistance } from '../models';\n\nexport function shouldFireScrollEvent(\n  container: IPositionStats,\n  distance: IScrollerDistance,\n  scrollingDown: boolean\n) {\n  let remaining: number;\n  let containerBreakpoint: number;\n  if (container.totalToScroll <= 0) {\n    return false;\n  }\n\n  const scrolledUntilNow = container.isWindow ? container.scrolled : container.height + container.scrolled;\n  if (scrollingDown) {\n    remaining =\n      (container.totalToScroll - scrolledUntilNow) / container.totalToScroll;\n    containerBreakpoint = distance.down / 10;\n  } else {\n    const totalHiddenContentHeight =\n      container.scrolled + (container.totalToScroll - scrolledUntilNow);\n    remaining = container.scrolled / totalHiddenContentHeight;\n    containerBreakpoint = distance.up / 10;\n  }\n\n  const shouldFireEvent: boolean = remaining <= containerBreakpoint;\n  return shouldFireEvent;\n}\n\nexport function isScrollingDownwards(\n  lastScrollPosition: number,\n  container: IPositionStats\n) {\n  return lastScrollPosition < container.scrolled;\n}\n\nexport function getScrollStats(\n  lastScrollPosition: number,\n  container: IPositionStats,\n  distance: IScrollerDistance\n) {\n  const scrollDown = isScrollingDownwards(lastScrollPosition, container);\n  return {\n    fire: shouldFireScrollEvent(container, distance, scrollDown),\n    scrollDown\n  };\n}\n\nexport function updateScrollPosition(\n  position: number,\n  scrollState: IScrollState\n) {\n  return (scrollState.lastScrollPosition = position);\n}\n\nexport function updateTotalToScroll(\n  totalToScroll: number,\n  scrollState: IScrollState\n) {\n  if (scrollState.lastTotalToScroll !== totalToScroll) {\n    scrollState.lastTotalToScroll = scrollState.totalToScroll;\n    scrollState.totalToScroll = totalToScroll;\n  }\n}\n\nexport function isSameTotalToScroll(scrollState: IScrollState) {\n  return scrollState.totalToScroll === scrollState.lastTotalToScroll;\n}\n\nexport function updateTriggeredFlag(\n  scroll,\n  scrollState: IScrollState,\n  triggered: boolean,\n  isScrollingDown: boolean\n) {\n  if (isScrollingDown) {\n    scrollState.triggered.down = scroll;\n  } else {\n    scrollState.triggered.up = scroll;\n  }\n}\n\nexport function isTriggeredScroll(\n  totalToScroll,\n  scrollState: IScrollState,\n  isScrollingDown: boolean\n) {\n  return isScrollingDown\n    ? scrollState.triggered.down === totalToScroll\n    : scrollState.triggered.up === totalToScroll;\n}\n\nexport function updateScrollState(\n  scrollState: IScrollState,\n  scrolledUntilNow: number,\n  totalToScroll: number\n) {\n  updateScrollPosition(scrolledUntilNow, scrollState);\n  updateTotalToScroll(totalToScroll, scrollState);\n  // const isSameTotal = isSameTotalToScroll(scrollState);\n  // if (!isSameTotal) {\n  //   updateTriggeredFlag(scrollState, false, isScrollingDown);\n  // }\n}\n","import { ElementRef } from '@angular/core';\n\nimport { ContainerRef, IPositionElements, IPositionStats, IResolver } from '../models';\nimport { AxisResolver } from './axis-resolver';\n\nexport function createResolver({\n  windowElement,\n  axis\n}: IPositionElements): IResolver {\n  return createResolverWithContainer(\n    { axis, isWindow: isElementWindow(windowElement) },\n    windowElement\n  );\n}\n\nexport function createResolverWithContainer(\n  resolver,\n  windowElement: ContainerRef\n) {\n  const container =\n    resolver.isWindow || (windowElement && !windowElement.nativeElement)\n      ? windowElement\n      : windowElement.nativeElement;\n  return { ...resolver, container };\n}\n\nexport function isElementWindow(windowElement: ContainerRef): boolean {\n  const isWindow = ['Window', 'global'].some((obj: string) =>\n    Object.prototype.toString.call(windowElement).includes(obj)\n  );\n  return isWindow;\n}\n\nexport function getDocumentElement(isContainerWindow: boolean, windowElement) {\n  return isContainerWindow ? windowElement.document.documentElement : null;\n}\n\nexport function calculatePoints(element: ElementRef, resolver: IResolver) {\n  const height = extractHeightForElement(resolver);\n  return resolver.isWindow\n    ? calculatePointsForWindow(height, element, resolver)\n    : calculatePointsForElement(height, element, resolver);\n}\n\nexport function calculatePointsForWindow(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container, isWindow } = resolver;\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  // scrolled until now / current y point\n  const scrolled =\n    height +\n    getElementPageYOffset(\n      getDocumentElement(isWindow, container),\n      axis,\n      isWindow\n    );\n  // total height / most bottom y point\n  const nativeElementHeight = getElementHeight(\n    element.nativeElement,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n  const totalToScroll =\n    getElementOffsetTop(element.nativeElement, axis, isWindow) +\n    nativeElementHeight;\n  return { height, scrolled, totalToScroll, isWindow };\n}\n\nexport function calculatePointsForElement(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container } = resolver;\n  // perhaps use container.offsetTop instead of 'scrollTop'\n  const scrolled = container[axis.scrollTopKey()];\n  const totalToScroll = container[axis.scrollHeightKey()];\n  return { height, scrolled, totalToScroll, isWindow: false };\n}\n\nexport function extractHeightPropKeys(axis: AxisResolver) {\n  return {\n    offsetHeightKey: axis.offsetHeightKey(),\n    clientHeightKey: axis.clientHeightKey()\n  };\n}\n\nexport function extractHeightForElement({\n  container,\n  isWindow,\n  axis\n}: IResolver) {\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  return getElementHeight(\n    container,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n}\nexport function getElementHeight(\n  elem: any,\n  isWindow: boolean,\n  offsetHeightKey: string,\n  clientHeightKey: string\n) {\n  if (isNaN(elem[offsetHeightKey])) {\n    const docElem = getDocumentElement(isWindow, elem);\n    return docElem ? docElem[clientHeightKey] : 0;\n  } else {\n    return elem[offsetHeightKey];\n  }\n}\n\nexport function getElementOffsetTop(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const topKey = axis.topKey();\n  // elem = elem.nativeElement;\n  if (!elem.getBoundingClientRect) {\n    // || elem.css('none')) {\n    return;\n  }\n  return (\n    elem.getBoundingClientRect()[topKey] +\n    getElementPageYOffset(elem, axis, isWindow)\n  );\n}\n\nexport function getElementPageYOffset(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const pageYOffset = axis.pageYOffsetKey();\n  const scrollTop = axis.scrollTopKey();\n  const offsetTop = axis.offsetTopKey();\n\n  if (isNaN(window.pageYOffset)) {\n    return getDocumentElement(isWindow, elem)[scrollTop];\n  } else if (elem.ownerDocument) {\n    return elem.ownerDocument.defaultView[pageYOffset];\n  } else {\n    return elem[offsetTop];\n  }\n}\n","import { IInfiniteScrollEvent, IPositionStats } from '../models';\n\nexport interface IScrollerProps extends IDistanceRange {\n  container: IPositionStats;\n  alwaysCallback: boolean;\n  disabled: boolean;\n}\n\nexport interface ITriggerEvents {\n  down: (event: any) => any;\n  up: (event: any) => any;\n}\n\nexport interface IDistanceRange {\n  down: number;\n  up: number;\n}\n\nexport interface IScrollConfig {\n  alwaysCallback: boolean;\n  shouldFireScrollEvent: boolean;\n}\n\nexport function shouldTriggerEvents(\n  alwaysCallback: boolean,\n  shouldFireScrollEvent: boolean,\n  isTriggeredCurrentTotal: boolean\n) {\n  if (alwaysCallback && shouldFireScrollEvent) {\n    return true;\n  }\n  if (!isTriggeredCurrentTotal && shouldFireScrollEvent) {\n    return true;\n  }\n  return false;\n}\n","const VerticalProps = {\n  clientHeight: \"clientHeight\",\n  offsetHeight: \"offsetHeight\",\n  scrollHeight: \"scrollHeight\",\n  pageYOffset: \"pageYOffset\",\n  offsetTop: \"offsetTop\",\n  scrollTop: \"scrollTop\",\n  top: \"top\"\n};\n\nconst HorizontalProps = {\n  clientHeight: \"clientWidth\",\n  offsetHeight: \"offsetWidth\",\n  scrollHeight: \"scrollWidth\",\n  pageYOffset: \"pageXOffset\",\n  offsetTop: \"offsetLeft\",\n  scrollTop: \"scrollLeft\",\n  top: \"left\"\n};\n\nexport class AxisResolver {\n  private propsMap: any;\n\n  constructor(private vertical: boolean = true) {\n    this.propsMap = vertical ? VerticalProps : HorizontalProps;\n  }\n  clientHeightKey() {\n    return this.propsMap.clientHeight;\n  }\n  offsetHeightKey() {\n    return this.propsMap.offsetHeight;\n  }\n  scrollHeightKey() {\n    return this.propsMap.scrollHeight;\n  }\n  pageYOffsetKey() {\n    return this.propsMap.pageYOffset;\n  }\n  offsetTopKey() {\n    return this.propsMap.offsetTop;\n  }\n  scrollTopKey() {\n    return this.propsMap.scrollTop;\n  }\n  topKey() {\n    return this.propsMap.top;\n  }\n}\n","import { ElementRef, SimpleChange } from '@angular/core';\n\nexport function resolveContainerElement(\n  selector: string | any,\n  scrollWindow,\n  defaultElement,\n  fromRoot: boolean\n): any {\n  const hasWindow = window && !!window.document && window.document.documentElement;\n  let container = hasWindow && scrollWindow ? window : defaultElement;\n  if (selector) {\n    const containerIsString =\n      selector && hasWindow && typeof selector === 'string';\n    container = containerIsString\n      ? findElement(selector, defaultElement.nativeElement, fromRoot)\n      : selector;\n    if (!container) {\n      throw new Error('ngx-infinite-scroll {resolveContainerElement()}: selector for');\n    }\n  }\n  return container;\n}\n\nexport function findElement(\n  selector: string | any,\n  customRoot: ElementRef | any,\n  fromRoot: boolean\n) {\n  const rootEl = fromRoot ? window.document : customRoot;\n  return rootEl.querySelector(selector);\n}\n\nexport function inputPropChanged(prop: SimpleChange): boolean {\n  return prop && !prop.firstChange;\n}\n\nexport function hasWindowDefined(): boolean {\n  return typeof window !== 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bundles/ngx-infinite-scroll.umd.min.js

@@ -1,2 +0,2 @@
-!function(global,factory){"object"==typeof exports&&"undefined"!=typeof module?factory(exports,require("@angular/core"),require("rxjs"),require("rxjs/operators")):"function"==typeof define&&define.amd?define(["exports","@angular/core","rxjs","rxjs/operators"],factory):factory((global.ng=global.ng||{},global.ng.ngxInfiniteScroll=global.ng.ngxInfiniteScroll||{}),global.ng.core,global.rxjs,global.rxjs_operators)}(this,function(exports,_angular_core,rxjs,rxjs_operators){"use strict";function resolveContainerElement(selector,scrollWindow,defaultElement,fromRoot){var hasWindow=window&&!!window.document&&window.document.documentElement,container=hasWindow&&scrollWindow?window:defaultElement;if(selector){if(!(container=selector&&hasWindow&&"string"==typeof selector?findElement(selector,defaultElement.nativeElement,fromRoot):selector))throw new Error("ngx-infinite-scroll {resolveContainerElement()}: selector for")}return container}function findElement(selector,customRoot,fromRoot){return(fromRoot?window.document:customRoot).querySelector(selector)}function inputPropChanged(prop){return prop&&!prop.firstChange}function hasWindowDefined(){return"undefined"!=typeof window}function shouldTriggerEvents(alwaysCallback,shouldFireScrollEvent,isTriggeredCurrentTotal){return!(!alwaysCallback||!shouldFireScrollEvent)||!(isTriggeredCurrentTotal||!shouldFireScrollEvent)}function createResolver(_a){var windowElement=_a.windowElement;return createResolverWithContainer({axis:_a.axis,isWindow:isElementWindow(windowElement)},windowElement)}function createResolverWithContainer(resolver,windowElement){var container=resolver.isWindow||windowElement&&!windowElement.nativeElement?windowElement:windowElement.nativeElement;return Object.assign({},resolver,{container:container})}function isElementWindow(windowElement){return["Window","global"].some(function(obj){return Object.prototype.toString.call(windowElement).includes(obj)})}function getDocumentElement(isContainerWindow,windowElement){return isContainerWindow?windowElement.document.documentElement:null}function calculatePoints(element,resolver){var height=extractHeightForElement(resolver);return resolver.isWindow?calculatePointsForWindow(height,element,resolver):calculatePointsForElement(height,element,resolver)}function calculatePointsForWindow(height,element,resolver){var axis=resolver.axis,container=resolver.container,isWindow=resolver.isWindow,_a=extractHeightPropKeys(axis),offsetHeightKey=_a.offsetHeightKey,clientHeightKey=_a.clientHeightKey,scrolled=height+getElementPageYOffset(getDocumentElement(isWindow,container),axis,isWindow),nativeElementHeight=getElementHeight(element.nativeElement,isWindow,offsetHeightKey,clientHeightKey);return{height:height,scrolled:scrolled,totalToScroll:getElementOffsetTop(element.nativeElement,axis,isWindow)+nativeElementHeight,isWindow:isWindow}}function calculatePointsForElement(height,element,resolver){var axis=resolver.axis,container=resolver.container;return{height:height,scrolled:container[axis.scrollTopKey()],totalToScroll:container[axis.scrollHeightKey()],isWindow:!1}}function extractHeightPropKeys(axis){return{offsetHeightKey:axis.offsetHeightKey(),clientHeightKey:axis.clientHeightKey()}}function extractHeightForElement(_a){var container=_a.container,isWindow=_a.isWindow,axis=_a.axis,_b=extractHeightPropKeys(axis);return getElementHeight(container,isWindow,_b.offsetHeightKey,_b.clientHeightKey)}function getElementHeight(elem,isWindow,offsetHeightKey,clientHeightKey){if(isNaN(elem[offsetHeightKey])){var docElem=getDocumentElement(isWindow,elem);return docElem?docElem[clientHeightKey]:0}return elem[offsetHeightKey]}function getElementOffsetTop(elem,axis,isWindow){var topKey=axis.topKey();if(elem.getBoundingClientRect)return elem.getBoundingClientRect()[topKey]+getElementPageYOffset(elem,axis,isWindow)}function getElementPageYOffset(elem,axis,isWindow){var pageYOffset=axis.pageYOffsetKey(),scrollTop=axis.scrollTopKey(),offsetTop=axis.offsetTopKey();return isNaN(window[pageYOffset])?getDocumentElement(isWindow,elem)[scrollTop]:elem.ownerDocument?elem.ownerDocument.defaultView[pageYOffset]:elem[offsetTop]}function shouldFireScrollEvent(container,distance,scrollingDown){var remaining,containerBreakpoint;if(container.totalToScroll<=0)return!1;var scrolledUntilNow=container.isWindow?container.scrolled:container.height+container.scrolled;if(scrollingDown)remaining=(container.totalToScroll-scrolledUntilNow)/container.totalToScroll,containerBreakpoint=distance.down/10;else{var totalHiddenContentHeight=container.scrolled+(container.totalToScroll-scrolledUntilNow);remaining=container.scrolled/totalHiddenContentHeight,containerBreakpoint=distance.up/10}return remaining<=containerBreakpoint}function isScrollingDownwards(lastScrollPosition,container){return lastScrollPosition<container.scrolled}function getScrollStats(lastScrollPosition,container,distance){var scrollDown=isScrollingDownwards(lastScrollPosition,container);return{fire:shouldFireScrollEvent(container,distance,scrollDown),scrollDown:scrollDown}}function createScroller(config){var scrollContainer=config.scrollContainer,scrollWindow=config.scrollWindow,element=config.element,fromRoot=config.fromRoot,resolver=createResolver({axis:new AxisResolver(!config.horizontal),windowElement:resolveContainerElement(scrollContainer,scrollWindow,element,fromRoot)}),scrollState=new ScrollState({totalToScroll:calculatePoints(element,resolver)}),options={container:resolver.container,throttle:config.throttle},distance={up:config.upDistance,down:config.downDistance};return attachScrollEvent(options).pipe(rxjs_operators.mergeMap(function(){return rxjs.of(calculatePoints(element,resolver))}),rxjs_operators.map(function(positionStats){return toInfiniteScrollParams(scrollState.lastScrollPosition,positionStats,distance)}),rxjs_operators.tap(function(_a){var stats=_a.stats;return scrollState.updateScroll(stats.scrolled,stats.totalToScroll)}),rxjs_operators.filter(function(_a){var fire=_a.fire,scrollDown=_a.scrollDown,totalToScroll=_a.stats.totalToScroll;return shouldTriggerEvents(config.alwaysCallback,fire,scrollState.isTriggeredScroll(totalToScroll,scrollDown))}),rxjs_operators.tap(function(_a){var scrollDown=_a.scrollDown,totalToScroll=_a.stats.totalToScroll;scrollState.updateTriggeredFlag(totalToScroll,scrollDown)}),rxjs_operators.map(toInfiniteScrollAction))}function attachScrollEvent(options){var obs=rxjs.fromEvent(options.container,"scroll");return options.throttle&&(obs=obs.pipe(rxjs_operators.sampleTime(options.throttle))),obs}function toInfiniteScrollParams(lastScrollPosition,stats,distance){var _a=getScrollStats(lastScrollPosition,stats,distance);return{scrollDown:_a.scrollDown,fire:_a.fire,stats:stats}}function toInfiniteScrollAction(response){var scrollDown=response.scrollDown,currentScrollPosition=response.stats.scrolled;return{type:scrollDown?InfiniteScrollActions.DOWN:InfiniteScrollActions.UP,payload:{currentScrollPosition:currentScrollPosition}}}var VerticalProps={clientHeight:"clientHeight",offsetHeight:"offsetHeight",scrollHeight:"scrollHeight",pageYOffset:"pageYOffset",offsetTop:"offsetTop",scrollTop:"scrollTop",top:"top"},HorizontalProps={clientHeight:"clientWidth",offsetHeight:"offsetWidth",scrollHeight:"scrollWidth",pageYOffset:"pageXOffset",offsetTop:"offsetLeft",scrollTop:"scrollLeft",top:"left"},AxisResolver=function(){function AxisResolver(vertical){void 0===vertical&&(vertical=!0),this.vertical=vertical,this.propsMap=vertical?VerticalProps:HorizontalProps}return AxisResolver.prototype.clientHeightKey=function(){return this.propsMap.clientHeight},AxisResolver.prototype.offsetHeightKey=function(){return this.propsMap.offsetHeight},AxisResolver.prototype.scrollHeightKey=function(){return this.propsMap.scrollHeight},AxisResolver.prototype.pageYOffsetKey=function(){return this.propsMap.pageYOffset},AxisResolver.prototype.offsetTopKey=function(){return this.propsMap.offsetTop},AxisResolver.prototype.scrollTopKey=function(){return this.propsMap.scrollTop},AxisResolver.prototype.topKey=function(){return this.propsMap.top},AxisResolver}(),ScrollState=function(){function ScrollState(_a){var totalToScroll=_a.totalToScroll;this.lastScrollPosition=0,this.lastTotalToScroll=0,this.totalToScroll=0,this.triggered={down:0,up:0},this.totalToScroll=totalToScroll}return ScrollState.prototype.updateScrollPosition=function(position){return this.lastScrollPosition=position},ScrollState.prototype.updateTotalToScroll=function(totalToScroll){this.lastTotalToScroll!==totalToScroll&&(this.lastTotalToScroll=this.totalToScroll,this.totalToScroll=totalToScroll)},ScrollState.prototype.updateScroll=function(scrolledUntilNow,totalToScroll){this.updateScrollPosition(scrolledUntilNow),this.updateTotalToScroll(totalToScroll)},ScrollState.prototype.updateTriggeredFlag=function(scroll,isScrollingDown){isScrollingDown?this.triggered.down=scroll:this.triggered.up=scroll},ScrollState.prototype.isTriggeredScroll=function(totalToScroll,isScrollingDown){return isScrollingDown?this.triggered.down===totalToScroll:this.triggered.up===totalToScroll},ScrollState}(),InfiniteScrollActions={DOWN:"[NGX_ISE] DOWN",UP:"[NGX_ISE] UP"},InfiniteScrollDirective=function(){function InfiniteScrollDirective(element,zone){this.element=element,this.zone=zone,this.scrolled=new _angular_core.EventEmitter,this.scrolledUp=new _angular_core.EventEmitter,this.infiniteScrollDistance=2,this.infiniteScrollUpDistance=1.5,this.infiniteScrollThrottle=150,this.infiniteScrollDisabled=!1,this.infiniteScrollContainer=null,this.scrollWindow=!0,this.immediateCheck=!1,this.horizontal=!1,this.alwaysCallback=!1,this.fromRoot=!1}return InfiniteScrollDirective.prototype.ngAfterViewInit=function(){this.infiniteScrollDisabled||this.setup()},InfiniteScrollDirective.prototype.ngOnChanges=function(_a){var infiniteScrollContainer=_a.infiniteScrollContainer,infiniteScrollDisabled=_a.infiniteScrollDisabled,infiniteScrollDistance=_a.infiniteScrollDistance,containerChanged=inputPropChanged(infiniteScrollContainer),disabledChanged=inputPropChanged(infiniteScrollDisabled),distanceChanged=inputPropChanged(infiniteScrollDistance),shouldSetup=!disabledChanged&&!this.infiniteScrollDisabled||disabledChanged&&!infiniteScrollDisabled.currentValue||distanceChanged;(containerChanged||disabledChanged||distanceChanged)&&(this.destroyScroller(),shouldSetup&&this.setup())},InfiniteScrollDirective.prototype.setup=function(){var _this=this;hasWindowDefined()&&this.zone.runOutsideAngular(function(){_this.disposeScroller=createScroller({fromRoot:_this.fromRoot,alwaysCallback:_this.alwaysCallback,disable:_this.infiniteScrollDisabled,downDistance:_this.infiniteScrollDistance,element:_this.element,horizontal:_this.horizontal,scrollContainer:_this.infiniteScrollContainer,scrollWindow:_this.scrollWindow,throttle:_this.infiniteScrollThrottle,upDistance:_this.infiniteScrollUpDistance}).subscribe(function(payload){return _this.zone.run(function(){return _this.handleOnScroll(payload)})})})},InfiniteScrollDirective.prototype.handleOnScroll=function(_a){var type=_a.type,payload=_a.payload;switch(type){case InfiniteScrollActions.DOWN:return this.scrolled.emit(payload);case InfiniteScrollActions.UP:return this.scrolledUp.emit(payload);default:return}},InfiniteScrollDirective.prototype.ngOnDestroy=function(){this.destroyScroller()},InfiniteScrollDirective.prototype.destroyScroller=function(){this.disposeScroller&&this.disposeScroller.unsubscribe()},InfiniteScrollDirective}();InfiniteScrollDirective.decorators=[{type:_angular_core.Directive,args:[{selector:"[infiniteScroll], [infinite-scroll], [data-infinite-scroll]"}]}],InfiniteScrollDirective.ctorParameters=function(){return[{type:_angular_core.ElementRef},{type:_angular_core.NgZone}]},InfiniteScrollDirective.propDecorators={scrolled:[{type:_angular_core.Output}],scrolledUp:[{type:_angular_core.Output}],infiniteScrollDistance:[{type:_angular_core.Input}],infiniteScrollUpDistance:[{type:_angular_core.Input}],infiniteScrollThrottle:[{type:_angular_core.Input}],infiniteScrollDisabled:[{type:_angular_core.Input}],infiniteScrollContainer:[{type:_angular_core.Input}],scrollWindow:[{type:_angular_core.Input}],immediateCheck:[{type:_angular_core.Input}],horizontal:[{type:_angular_core.Input}],alwaysCallback:[{type:_angular_core.Input}],fromRoot:[{type:_angular_core.Input}]};var InfiniteScrollModule=function(){function InfiniteScrollModule(){}return InfiniteScrollModule}();InfiniteScrollModule.decorators=[{type:_angular_core.NgModule,args:[{declarations:[InfiniteScrollDirective],exports:[InfiniteScrollDirective],imports:[],providers:[]}]}],exports.InfiniteScrollDirective=InfiniteScrollDirective,exports.InfiniteScrollModule=InfiniteScrollModule,Object.defineProperty(exports,"__esModule",{value:!0})});
+!function(global,factory){"object"==typeof exports&&"undefined"!=typeof module?factory(exports,require("@angular/core"),require("rxjs"),require("rxjs/operators")):"function"==typeof define&&define.amd?define(["exports","@angular/core","rxjs","rxjs/operators"],factory):factory((global.ng=global.ng||{},global.ng.ngxInfiniteScroll=global.ng.ngxInfiniteScroll||{}),global.ng.core,global.rxjs,global.rxjs_operators)}(this,function(exports,_angular_core,rxjs,rxjs_operators){"use strict";function resolveContainerElement(selector,scrollWindow,defaultElement,fromRoot){var hasWindow=window&&!!window.document&&window.document.documentElement,container=hasWindow&&scrollWindow?window:defaultElement;if(selector){if(!(container=selector&&hasWindow&&"string"==typeof selector?findElement(selector,defaultElement.nativeElement,fromRoot):selector))throw new Error("ngx-infinite-scroll {resolveContainerElement()}: selector for")}return container}function findElement(selector,customRoot,fromRoot){return(fromRoot?window.document:customRoot).querySelector(selector)}function inputPropChanged(prop){return prop&&!prop.firstChange}function hasWindowDefined(){return"undefined"!=typeof window}function shouldTriggerEvents(alwaysCallback,shouldFireScrollEvent,isTriggeredCurrentTotal){return!(!alwaysCallback||!shouldFireScrollEvent)||!(isTriggeredCurrentTotal||!shouldFireScrollEvent)}function createResolver(_a){var windowElement=_a.windowElement;return createResolverWithContainer({axis:_a.axis,isWindow:isElementWindow(windowElement)},windowElement)}function createResolverWithContainer(resolver,windowElement){var container=resolver.isWindow||windowElement&&!windowElement.nativeElement?windowElement:windowElement.nativeElement;return Object.assign(Object.assign({},resolver),{container:container})}function isElementWindow(windowElement){return["Window","global"].some(function(obj){return Object.prototype.toString.call(windowElement).includes(obj)})}function getDocumentElement(isContainerWindow,windowElement){return isContainerWindow?windowElement.document.documentElement:null}function calculatePoints(element,resolver){var height=extractHeightForElement(resolver);return resolver.isWindow?calculatePointsForWindow(height,element,resolver):calculatePointsForElement(height,element,resolver)}function calculatePointsForWindow(height,element,resolver){var axis=resolver.axis,container=resolver.container,isWindow=resolver.isWindow,_a=extractHeightPropKeys(axis),offsetHeightKey=_a.offsetHeightKey,clientHeightKey=_a.clientHeightKey,scrolled=height+getElementPageYOffset(getDocumentElement(isWindow,container),axis,isWindow),nativeElementHeight=getElementHeight(element.nativeElement,isWindow,offsetHeightKey,clientHeightKey);return{height:height,scrolled:scrolled,totalToScroll:getElementOffsetTop(element.nativeElement,axis,isWindow)+nativeElementHeight,isWindow:isWindow}}function calculatePointsForElement(height,element,resolver){var axis=resolver.axis,container=resolver.container;return{height:height,scrolled:container[axis.scrollTopKey()],totalToScroll:container[axis.scrollHeightKey()],isWindow:!1}}function extractHeightPropKeys(axis){return{offsetHeightKey:axis.offsetHeightKey(),clientHeightKey:axis.clientHeightKey()}}function extractHeightForElement(_a){var container=_a.container,isWindow=_a.isWindow,axis=_a.axis,_b=extractHeightPropKeys(axis);return getElementHeight(container,isWindow,_b.offsetHeightKey,_b.clientHeightKey)}function getElementHeight(elem,isWindow,offsetHeightKey,clientHeightKey){if(isNaN(elem[offsetHeightKey])){var docElem=getDocumentElement(isWindow,elem);return docElem?docElem[clientHeightKey]:0}return elem[offsetHeightKey]}function getElementOffsetTop(elem,axis,isWindow){var topKey=axis.topKey();if(elem.getBoundingClientRect)return elem.getBoundingClientRect()[topKey]+getElementPageYOffset(elem,axis,isWindow)}function getElementPageYOffset(elem,axis,isWindow){var pageYOffset=axis.pageYOffsetKey(),scrollTop=axis.scrollTopKey(),offsetTop=axis.offsetTopKey();return isNaN(window.pageYOffset)?getDocumentElement(isWindow,elem)[scrollTop]:elem.ownerDocument?elem.ownerDocument.defaultView[pageYOffset]:elem[offsetTop]}function shouldFireScrollEvent(container,distance,scrollingDown){var remaining,containerBreakpoint;if(container.totalToScroll<=0)return!1;var scrolledUntilNow=container.isWindow?container.scrolled:container.height+container.scrolled;if(scrollingDown)remaining=(container.totalToScroll-scrolledUntilNow)/container.totalToScroll,containerBreakpoint=distance.down/10;else{var totalHiddenContentHeight=container.scrolled+(container.totalToScroll-scrolledUntilNow);remaining=container.scrolled/totalHiddenContentHeight,containerBreakpoint=distance.up/10}return remaining<=containerBreakpoint}function isScrollingDownwards(lastScrollPosition,container){return lastScrollPosition<container.scrolled}function getScrollStats(lastScrollPosition,container,distance){var scrollDown=isScrollingDownwards(lastScrollPosition,container);return{fire:shouldFireScrollEvent(container,distance,scrollDown),scrollDown:scrollDown}}function createScroller(config){var scrollContainer=config.scrollContainer,scrollWindow=config.scrollWindow,element=config.element,fromRoot=config.fromRoot,resolver=createResolver({axis:new AxisResolver(!config.horizontal),windowElement:resolveContainerElement(scrollContainer,scrollWindow,element,fromRoot)}),scrollState=new ScrollState({totalToScroll:calculatePoints(element,resolver)}),options={container:resolver.container,throttle:config.throttle},distance={up:config.upDistance,down:config.downDistance};return attachScrollEvent(options).pipe(rxjs_operators.mergeMap(function(){return rxjs.of(calculatePoints(element,resolver))}),rxjs_operators.map(function(positionStats){return toInfiniteScrollParams(scrollState.lastScrollPosition,positionStats,distance)}),rxjs_operators.tap(function(_a){var stats=_a.stats;return scrollState.updateScroll(stats.scrolled,stats.totalToScroll)}),rxjs_operators.filter(function(_a){var fire=_a.fire,scrollDown=_a.scrollDown,totalToScroll=_a.stats.totalToScroll;return shouldTriggerEvents(config.alwaysCallback,fire,scrollState.isTriggeredScroll(totalToScroll,scrollDown))}),rxjs_operators.tap(function(_a){var scrollDown=_a.scrollDown,totalToScroll=_a.stats.totalToScroll;scrollState.updateTriggeredFlag(totalToScroll,scrollDown)}),rxjs_operators.map(toInfiniteScrollAction))}function attachScrollEvent(options){var obs=rxjs.fromEvent(options.container,"scroll");return options.throttle&&(obs=obs.pipe(rxjs_operators.sampleTime(options.throttle))),obs}function toInfiniteScrollParams(lastScrollPosition,stats,distance){var _a=getScrollStats(lastScrollPosition,stats,distance);return{scrollDown:_a.scrollDown,fire:_a.fire,stats:stats}}function toInfiniteScrollAction(response){var scrollDown=response.scrollDown,currentScrollPosition=response.stats.scrolled;return{type:scrollDown?InfiniteScrollActions.DOWN:InfiniteScrollActions.UP,payload:{currentScrollPosition:currentScrollPosition}}}var VerticalProps={clientHeight:"clientHeight",offsetHeight:"offsetHeight",scrollHeight:"scrollHeight",pageYOffset:"pageYOffset",offsetTop:"offsetTop",scrollTop:"scrollTop",top:"top"},HorizontalProps={clientHeight:"clientWidth",offsetHeight:"offsetWidth",scrollHeight:"scrollWidth",pageYOffset:"pageXOffset",offsetTop:"offsetLeft",scrollTop:"scrollLeft",top:"left"},AxisResolver=function(){function AxisResolver(vertical){void 0===vertical&&(vertical=!0),this.vertical=vertical,this.propsMap=vertical?VerticalProps:HorizontalProps}return AxisResolver.prototype.clientHeightKey=function(){return this.propsMap.clientHeight},AxisResolver.prototype.offsetHeightKey=function(){return this.propsMap.offsetHeight},AxisResolver.prototype.scrollHeightKey=function(){return this.propsMap.scrollHeight},AxisResolver.prototype.pageYOffsetKey=function(){return this.propsMap.pageYOffset},AxisResolver.prototype.offsetTopKey=function(){return this.propsMap.offsetTop},AxisResolver.prototype.scrollTopKey=function(){return this.propsMap.scrollTop},AxisResolver.prototype.topKey=function(){return this.propsMap.top},AxisResolver}(),ScrollState=function(){function ScrollState(_a){var totalToScroll=_a.totalToScroll;this.lastScrollPosition=0,this.lastTotalToScroll=0,this.totalToScroll=0,this.triggered={down:0,up:0},this.totalToScroll=totalToScroll}return ScrollState.prototype.updateScrollPosition=function(position){return this.lastScrollPosition=position},ScrollState.prototype.updateTotalToScroll=function(totalToScroll){this.lastTotalToScroll!==totalToScroll&&(this.lastTotalToScroll=this.totalToScroll,this.totalToScroll=totalToScroll)},ScrollState.prototype.updateScroll=function(scrolledUntilNow,totalToScroll){this.updateScrollPosition(scrolledUntilNow),this.updateTotalToScroll(totalToScroll)},ScrollState.prototype.updateTriggeredFlag=function(scroll,isScrollingDown){isScrollingDown?this.triggered.down=scroll:this.triggered.up=scroll},ScrollState.prototype.isTriggeredScroll=function(totalToScroll,isScrollingDown){return isScrollingDown?this.triggered.down===totalToScroll:this.triggered.up===totalToScroll},ScrollState}(),InfiniteScrollActions={DOWN:"[NGX_ISE] DOWN",UP:"[NGX_ISE] UP"},InfiniteScrollDirective=function(){function InfiniteScrollDirective(element,zone){this.element=element,this.zone=zone,this.scrolled=new _angular_core.EventEmitter,this.scrolledUp=new _angular_core.EventEmitter,this.infiniteScrollDistance=2,this.infiniteScrollUpDistance=1.5,this.infiniteScrollThrottle=150,this.infiniteScrollDisabled=!1,this.infiniteScrollContainer=null,this.scrollWindow=!0,this.immediateCheck=!1,this.horizontal=!1,this.alwaysCallback=!1,this.fromRoot=!1}return InfiniteScrollDirective.prototype.ngAfterViewInit=function(){this.infiniteScrollDisabled||this.setup()},InfiniteScrollDirective.prototype.ngOnChanges=function(_a){var infiniteScrollContainer=_a.infiniteScrollContainer,infiniteScrollDisabled=_a.infiniteScrollDisabled,infiniteScrollDistance=_a.infiniteScrollDistance,containerChanged=inputPropChanged(infiniteScrollContainer),disabledChanged=inputPropChanged(infiniteScrollDisabled),distanceChanged=inputPropChanged(infiniteScrollDistance),shouldSetup=!disabledChanged&&!this.infiniteScrollDisabled||disabledChanged&&!infiniteScrollDisabled.currentValue||distanceChanged;(containerChanged||disabledChanged||distanceChanged)&&(this.destroyScroller(),shouldSetup&&this.setup())},InfiniteScrollDirective.prototype.setup=function(){var _this=this;hasWindowDefined()&&this.zone.runOutsideAngular(function(){_this.disposeScroller=createScroller({fromRoot:_this.fromRoot,alwaysCallback:_this.alwaysCallback,disable:_this.infiniteScrollDisabled,downDistance:_this.infiniteScrollDistance,element:_this.element,horizontal:_this.horizontal,scrollContainer:_this.infiniteScrollContainer,scrollWindow:_this.scrollWindow,throttle:_this.infiniteScrollThrottle,upDistance:_this.infiniteScrollUpDistance}).subscribe(function(payload){return _this.zone.run(function(){return _this.handleOnScroll(payload)})})})},InfiniteScrollDirective.prototype.handleOnScroll=function(_a){var type=_a.type,payload=_a.payload;switch(type){case InfiniteScrollActions.DOWN:return this.scrolled.emit(payload);case InfiniteScrollActions.UP:return this.scrolledUp.emit(payload);default:return}},InfiniteScrollDirective.prototype.ngOnDestroy=function(){this.destroyScroller()},InfiniteScrollDirective.prototype.destroyScroller=function(){this.disposeScroller&&this.disposeScroller.unsubscribe()},InfiniteScrollDirective}();InfiniteScrollDirective.decorators=[{type:_angular_core.Directive,args:[{selector:"[infiniteScroll], [infinite-scroll], [data-infinite-scroll]"}]}],InfiniteScrollDirective.ctorParameters=function(){return[{type:_angular_core.ElementRef},{type:_angular_core.NgZone}]},InfiniteScrollDirective.propDecorators={scrolled:[{type:_angular_core.Output}],scrolledUp:[{type:_angular_core.Output}],infiniteScrollDistance:[{type:_angular_core.Input}],infiniteScrollUpDistance:[{type:_angular_core.Input}],infiniteScrollThrottle:[{type:_angular_core.Input}],infiniteScrollDisabled:[{type:_angular_core.Input}],infiniteScrollContainer:[{type:_angular_core.Input}],scrollWindow:[{type:_angular_core.Input}],immediateCheck:[{type:_angular_core.Input}],horizontal:[{type:_angular_core.Input}],alwaysCallback:[{type:_angular_core.Input}],fromRoot:[{type:_angular_core.Input}]};var InfiniteScrollModule=function(){function InfiniteScrollModule(){}return InfiniteScrollModule}();InfiniteScrollModule.decorators=[{type:_angular_core.NgModule,args:[{declarations:[InfiniteScrollDirective],exports:[InfiniteScrollDirective],imports:[],providers:[]}]}],exports.InfiniteScrollDirective=InfiniteScrollDirective,exports.InfiniteScrollModule=InfiniteScrollModule,Object.defineProperty(exports,"__esModule",{value:!0})});
 //# sourceMappingURL=ngx-infinite-scroll.umd.min.js.map

bundles/ngx-infinite-scroll.umd.min.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"ngx-infinite-scroll.umd.min.js","sources":["../../src/services/ngx-ins-utils.ts","../../src/services/event-trigger.ts","../../src/services/position-resolver.ts","../../src/services/scroll-resolver.ts","../../src/services/scroll-register.ts","../../src/services/axis-resolver.ts","../../src/services/scroll-state.ts","../../src/modules/infinite-scroll.directive.ts","../../src/modules/ngx-infinite-scroll.module.ts"],"sourcesContent":["import { ElementRef, SimpleChange } from '@angular/core';\n\nexport function resolveContainerElement(\n  selector: string | any,\n  scrollWindow,\n  defaultElement,\n  fromRoot: boolean\n): any {\n  const hasWindow = window && !!window.document && window.document.documentElement;\n  let container = hasWindow && scrollWindow ? window : defaultElement;\n  if (selector) {\n    const containerIsString =\n      selector && hasWindow && typeof selector === 'string';\n    container = containerIsString\n      ? findElement(selector, defaultElement.nativeElement, fromRoot)\n      : selector;\n    if (!container) {\n      throw new Error('ngx-infinite-scroll {resolveContainerElement()}: selector for');\n    }\n  }\n  return container;\n}\n\nexport function findElement(\n  selector: string | any,\n  customRoot: ElementRef | any,\n  fromRoot: boolean\n) {\n  const rootEl = fromRoot ? window.document : customRoot;\n  return rootEl.querySelector(selector);\n}\n\nexport function inputPropChanged(prop: SimpleChange): boolean {\n  return prop && !prop.firstChange;\n}\n\nexport function hasWindowDefined(): boolean {\n  return typeof window !== 'undefined';\n}\n","import { IInfiniteScrollEvent, IPositionStats } from '../models';\n\nexport interface IScrollerProps extends IDistanceRange {\n  container: IPositionStats;\n  alwaysCallback: boolean;\n  disabled: boolean;\n}\n\nexport interface ITriggerEvents {\n  down: (event: any) => any;\n  up: (event: any) => any;\n}\n\nexport interface IDistanceRange {\n  down: number;\n  up: number;\n}\n\nexport interface IScrollConfig {\n  alwaysCallback: boolean;\n  shouldFireScrollEvent: boolean;\n}\n\nexport function shouldTriggerEvents(\n  alwaysCallback: boolean,\n  shouldFireScrollEvent: boolean,\n  isTriggeredCurrentTotal: boolean\n) {\n  if (alwaysCallback && shouldFireScrollEvent) {\n    return true;\n  }\n  if (!isTriggeredCurrentTotal && shouldFireScrollEvent) {\n    return true;\n  }\n  return false;\n}\n","import { ElementRef } from '@angular/core';\n\nimport { ContainerRef, IPositionElements, IPositionStats, IResolver } from '../models';\nimport { AxisResolver } from './axis-resolver';\n\nexport function createResolver({\n  windowElement,\n  axis\n}: IPositionElements): IResolver {\n  return createResolverWithContainer(\n    { axis, isWindow: isElementWindow(windowElement) },\n    windowElement\n  );\n}\n\nexport function createResolverWithContainer(\n  resolver,\n  windowElement: ContainerRef\n) {\n  const container =\n    resolver.isWindow || (windowElement && !windowElement.nativeElement)\n      ? windowElement\n      : windowElement.nativeElement;\n  return { ...resolver, container };\n}\n\nexport function isElementWindow(windowElement: ContainerRef): boolean {\n  const isWindow = ['Window', 'global'].some((obj: string) =>\n    Object.prototype.toString.call(windowElement).includes(obj)\n  );\n  return isWindow;\n}\n\nexport function getDocumentElement(isContainerWindow: boolean, windowElement) {\n  return isContainerWindow ? windowElement.document.documentElement : null;\n}\n\nexport function calculatePoints(element: ElementRef, resolver: IResolver) {\n  const height = extractHeightForElement(resolver);\n  return resolver.isWindow\n    ? calculatePointsForWindow(height, element, resolver)\n    : calculatePointsForElement(height, element, resolver);\n}\n\nexport function calculatePointsForWindow(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container, isWindow } = resolver;\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  // scrolled until now / current y point\n  const scrolled =\n    height +\n    getElementPageYOffset(\n      getDocumentElement(isWindow, container),\n      axis,\n      isWindow\n    );\n  // total height / most bottom y point\n  const nativeElementHeight = getElementHeight(\n    element.nativeElement,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n  const totalToScroll =\n    getElementOffsetTop(element.nativeElement, axis, isWindow) +\n    nativeElementHeight;\n  return { height, scrolled, totalToScroll, isWindow };\n}\n\nexport function calculatePointsForElement(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container } = resolver;\n  // perhaps use container.offsetTop instead of 'scrollTop'\n  const scrolled = container[axis.scrollTopKey()];\n  const totalToScroll = container[axis.scrollHeightKey()];\n  return { height, scrolled, totalToScroll, isWindow: false };\n}\n\nexport function extractHeightPropKeys(axis: AxisResolver) {\n  return {\n    offsetHeightKey: axis.offsetHeightKey(),\n    clientHeightKey: axis.clientHeightKey()\n  };\n}\n\nexport function extractHeightForElement({\n  container,\n  isWindow,\n  axis\n}: IResolver) {\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  return getElementHeight(\n    container,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n}\nexport function getElementHeight(\n  elem: any,\n  isWindow: boolean,\n  offsetHeightKey: string,\n  clientHeightKey: string\n) {\n  if (isNaN(elem[offsetHeightKey])) {\n    const docElem = getDocumentElement(isWindow, elem);\n    return docElem ? docElem[clientHeightKey] : 0;\n  } else {\n    return elem[offsetHeightKey];\n  }\n}\n\nexport function getElementOffsetTop(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const topKey = axis.topKey();\n  // elem = elem.nativeElement;\n  if (!elem.getBoundingClientRect) {\n    // || elem.css('none')) {\n    return;\n  }\n  return (\n    elem.getBoundingClientRect()[topKey] +\n    getElementPageYOffset(elem, axis, isWindow)\n  );\n}\n\nexport function getElementPageYOffset(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const pageYOffset = axis.pageYOffsetKey();\n  const scrollTop = axis.scrollTopKey();\n  const offsetTop = axis.offsetTopKey();\n\n  if (isNaN(window[pageYOffset])) {\n    return getDocumentElement(isWindow, elem)[scrollTop];\n  } else if (elem.ownerDocument) {\n    return elem.ownerDocument.defaultView[pageYOffset];\n  } else {\n    return elem[offsetTop];\n  }\n}\n","import { IPositionStats, IScrollState, IScrollerDistance } from '../models';\n\nexport function shouldFireScrollEvent(\n  container: IPositionStats,\n  distance: IScrollerDistance,\n  scrollingDown: boolean\n) {\n  let remaining: number;\n  let containerBreakpoint: number;\n  if (container.totalToScroll <= 0) {\n    return false;\n  }\n\n  const scrolledUntilNow = container.isWindow ? container.scrolled : container.height + container.scrolled;\n  if (scrollingDown) {\n    remaining =\n      (container.totalToScroll - scrolledUntilNow) / container.totalToScroll;\n    containerBreakpoint = distance.down / 10;\n  } else {\n    const totalHiddenContentHeight =\n      container.scrolled + (container.totalToScroll - scrolledUntilNow);\n    remaining = container.scrolled / totalHiddenContentHeight;\n    containerBreakpoint = distance.up / 10;\n  }\n\n  const shouldFireEvent: boolean = remaining <= containerBreakpoint;\n  return shouldFireEvent;\n}\n\nexport function isScrollingDownwards(\n  lastScrollPosition: number,\n  container: IPositionStats\n) {\n  return lastScrollPosition < container.scrolled;\n}\n\nexport function getScrollStats(\n  lastScrollPosition: number,\n  container: IPositionStats,\n  distance: IScrollerDistance\n) {\n  const scrollDown = isScrollingDownwards(lastScrollPosition, container);\n  return {\n    fire: shouldFireScrollEvent(container, distance, scrollDown),\n    scrollDown\n  };\n}\n\nexport function updateScrollPosition(\n  position: number,\n  scrollState: IScrollState\n) {\n  return (scrollState.lastScrollPosition = position);\n}\n\nexport function updateTotalToScroll(\n  totalToScroll: number,\n  scrollState: IScrollState\n) {\n  if (scrollState.lastTotalToScroll !== totalToScroll) {\n    scrollState.lastTotalToScroll = scrollState.totalToScroll;\n    scrollState.totalToScroll = totalToScroll;\n  }\n}\n\nexport function isSameTotalToScroll(scrollState: IScrollState) {\n  return scrollState.totalToScroll === scrollState.lastTotalToScroll;\n}\n\nexport function updateTriggeredFlag(\n  scroll,\n  scrollState: IScrollState,\n  triggered: boolean,\n  isScrollingDown: boolean\n) {\n  if (isScrollingDown) {\n    scrollState.triggered.down = scroll;\n  } else {\n    scrollState.triggered.up = scroll;\n  }\n}\n\nexport function isTriggeredScroll(\n  totalToScroll,\n  scrollState: IScrollState,\n  isScrollingDown: boolean\n) {\n  return isScrollingDown\n    ? scrollState.triggered.down === totalToScroll\n    : scrollState.triggered.up === totalToScroll;\n}\n\nexport function updateScrollState(\n  scrollState: IScrollState,\n  scrolledUntilNow: number,\n  totalToScroll: number\n) {\n  updateScrollPosition(scrolledUntilNow, scrollState);\n  updateTotalToScroll(totalToScroll, scrollState);\n  // const isSameTotal = isSameTotalToScroll(scrollState);\n  // if (!isSameTotal) {\n  //   updateTriggeredFlag(scrollState, false, isScrollingDown);\n  // }\n}\n","import { Observable, of, fromEvent } from 'rxjs';\nimport { map, mergeMap, tap, sampleTime, filter } from 'rxjs/operators';\n\nimport * as Models from '../models';\nimport { AxisResolver } from './axis-resolver';\nimport { shouldTriggerEvents } from './event-trigger';\nimport { resolveContainerElement } from './ngx-ins-utils';\nimport { calculatePoints, createResolver } from './position-resolver';\nimport * as ScrollResolver from './scroll-resolver';\nimport { ScrollState } from './scroll-state';\n\nexport function createScroller(config: Models.IScroller) {\n  const { scrollContainer, scrollWindow, element, fromRoot } = config;\n  const resolver = createResolver({\n    axis: new AxisResolver(!config.horizontal),\n    windowElement: resolveContainerElement(\n      scrollContainer,\n      scrollWindow,\n      element,\n      fromRoot\n    )\n  });\n  const scrollState = new ScrollState({\n    totalToScroll: calculatePoints(element, resolver)\n  });\n  const options: Models.IScrollRegisterConfig = {\n    container: resolver.container,\n    throttle: config.throttle\n  };\n  const distance = {\n    up: config.upDistance,\n    down: config.downDistance\n  };\n  return attachScrollEvent(options).pipe(\n    mergeMap(() => of(calculatePoints(element, resolver))),\n    map((positionStats: Models.IPositionStats) =>\n      toInfiniteScrollParams(\n        scrollState.lastScrollPosition,\n        positionStats,\n        distance\n      )\n    ),\n    tap(({ stats }: Models.IScrollParams) =>\n      scrollState.updateScroll(stats.scrolled, stats.totalToScroll)\n    ),\n    filter(\n      ({ fire, scrollDown, stats: { totalToScroll } }: Models.IScrollParams) =>\n        shouldTriggerEvents(\n          config.alwaysCallback,\n          fire,\n          scrollState.isTriggeredScroll(totalToScroll, scrollDown)\n        )\n    ),\n    tap(({ scrollDown, stats: { totalToScroll } }: Models.IScrollParams) => {\n      scrollState.updateTriggeredFlag(totalToScroll, scrollDown);\n    }),\n    map(toInfiniteScrollAction)\n  );\n}\n\nexport function attachScrollEvent(\n  options: Models.IScrollRegisterConfig\n): Observable<{}> {\n  let obs = fromEvent(options.container, 'scroll');\n  // For an unknown reason calling `sampleTime()` causes trouble for many users, even with `options.throttle = 0`.\n  // Let's avoid calling the function unless needed.\n  // See https://github.com/orizens/ngx-infinite-scroll/issues/198\n  if (options.throttle) {\n    obs = obs.pipe(sampleTime(options.throttle));\n  }\n  return obs;\n}\n\nexport function toInfiniteScrollParams(\n  lastScrollPosition: number,\n  stats: Models.IPositionStats,\n  distance: Models.IScrollerDistance\n): Models.IScrollParams {\n  const { scrollDown, fire } = ScrollResolver.getScrollStats(\n    lastScrollPosition,\n    stats,\n    distance\n  );\n  return {\n    scrollDown,\n    fire,\n    stats\n  };\n}\n\nexport const InfiniteScrollActions = {\n  DOWN: '[NGX_ISE] DOWN',\n  UP: '[NGX_ISE] UP'\n};\n\nexport function toInfiniteScrollAction(\n  response: Models.IScrollParams\n): Models.IInfiniteScrollAction {\n  const {\n    scrollDown,\n    stats: { scrolled: currentScrollPosition }\n  } = response;\n  return {\n    type: scrollDown ? InfiniteScrollActions.DOWN : InfiniteScrollActions.UP,\n    payload: {\n      currentScrollPosition\n    }\n  };\n}\n","const VerticalProps = {\n  clientHeight: \"clientHeight\",\n  offsetHeight: \"offsetHeight\",\n  scrollHeight: \"scrollHeight\",\n  pageYOffset: \"pageYOffset\",\n  offsetTop: \"offsetTop\",\n  scrollTop: \"scrollTop\",\n  top: \"top\"\n};\n\nconst HorizontalProps = {\n  clientHeight: \"clientWidth\",\n  offsetHeight: \"offsetWidth\",\n  scrollHeight: \"scrollWidth\",\n  pageYOffset: \"pageXOffset\",\n  offsetTop: \"offsetLeft\",\n  scrollTop: \"scrollLeft\",\n  top: \"left\"\n};\n\nexport class AxisResolver {\n  private propsMap: any;\n\n  constructor(private vertical: boolean = true) {\n    this.propsMap = vertical ? VerticalProps : HorizontalProps;\n  }\n  clientHeightKey() {\n    return this.propsMap.clientHeight;\n  }\n  offsetHeightKey() {\n    return this.propsMap.offsetHeight;\n  }\n  scrollHeightKey() {\n    return this.propsMap.scrollHeight;\n  }\n  pageYOffsetKey() {\n    return this.propsMap.pageYOffset;\n  }\n  offsetTopKey() {\n    return this.propsMap.offsetTop;\n  }\n  scrollTopKey() {\n    return this.propsMap.scrollTop;\n  }\n  topKey() {\n    return this.propsMap.top;\n  }\n}\n","import { IScrollState, IScrollerDistance } from '../models';\n\nexport class ScrollState implements IScrollState {\n  lastScrollPosition = 0;\n  lastTotalToScroll = 0;\n  totalToScroll = 0;\n  triggered: IScrollerDistance = {\n    down: 0,\n    up: 0\n  };\n\n  constructor({ totalToScroll }) {\n    this.totalToScroll = totalToScroll;\n  }\n\n  updateScrollPosition(position: number) {\n    return (this.lastScrollPosition = position);\n  }\n\n  updateTotalToScroll(totalToScroll: number) {\n    if (this.lastTotalToScroll !== totalToScroll) {\n      this.lastTotalToScroll = this.totalToScroll;\n      this.totalToScroll = totalToScroll;\n    }\n  }\n\n  updateScroll(scrolledUntilNow: number, totalToScroll: number) {\n    this.updateScrollPosition(scrolledUntilNow);\n    this.updateTotalToScroll(totalToScroll);\n  }\n\n  updateTriggeredFlag(scroll, isScrollingDown: boolean) {\n    if (isScrollingDown) {\n      this.triggered.down = scroll;\n    } else {\n      this.triggered.up = scroll;\n    }\n  }\n\n  isTriggeredScroll(totalToScroll, isScrollingDown: boolean) {\n    return isScrollingDown\n      ? this.triggered.down === totalToScroll\n      : this.triggered.up === totalToScroll;\n  }\n}\n","import {\n  AfterViewInit,\n  Directive,\n  ElementRef,\n  EventEmitter,\n  Input,\n  NgZone,\n  OnChanges,\n  OnDestroy,\n  Output,\n  SimpleChanges\n} from '@angular/core';\nimport {Subscription} from 'rxjs';\n\nimport { IInfiniteScrollEvent, IInfiniteScrollAction } from '../models';\nimport { hasWindowDefined, inputPropChanged } from '../services/ngx-ins-utils';\nimport { createScroller, InfiniteScrollActions } from '../services/scroll-register';\n\n@Directive({\n  selector: '[infiniteScroll], [infinite-scroll], [data-infinite-scroll]'\n})\nexport class InfiniteScrollDirective\n  implements OnDestroy, OnChanges, AfterViewInit {\n  @Output() scrolled = new EventEmitter<IInfiniteScrollEvent>();\n  @Output() scrolledUp = new EventEmitter<IInfiniteScrollEvent>();\n\n  @Input() infiniteScrollDistance: number = 2;\n  @Input() infiniteScrollUpDistance: number = 1.5;\n  @Input() infiniteScrollThrottle: number = 150;\n  @Input() infiniteScrollDisabled: boolean = false;\n  @Input() infiniteScrollContainer: any = null;\n  @Input() scrollWindow: boolean = true;\n  @Input() immediateCheck: boolean = false;\n  @Input() horizontal: boolean = false;\n  @Input() alwaysCallback: boolean = false;\n  @Input() fromRoot: boolean = false;\n\n  private disposeScroller: Subscription;\n\n  constructor(private element: ElementRef, private zone: NgZone) { }\n\n  ngAfterViewInit() {\n    if (!this.infiniteScrollDisabled) {\n      this.setup();\n    }\n  }\n\n  ngOnChanges({ infiniteScrollContainer, infiniteScrollDisabled, infiniteScrollDistance }: SimpleChanges) {\n    const containerChanged = inputPropChanged(infiniteScrollContainer);\n    const disabledChanged = inputPropChanged(infiniteScrollDisabled);\n    const distanceChanged = inputPropChanged(infiniteScrollDistance);\n    const shouldSetup = (!disabledChanged && !this.infiniteScrollDisabled) ||\n      (disabledChanged && !infiniteScrollDisabled.currentValue) || distanceChanged;\n\n    if (containerChanged || disabledChanged || distanceChanged) {\n      this.destroyScroller();\n      if (shouldSetup) {\n        this.setup();\n      }\n    }\n  }\n\n  setup() {\n    if (hasWindowDefined()) {\n      this.zone.runOutsideAngular(() => {\n        this.disposeScroller = createScroller({\n          fromRoot: this.fromRoot,\n          alwaysCallback: this.alwaysCallback,\n          disable: this.infiniteScrollDisabled,\n          downDistance: this.infiniteScrollDistance,\n          element: this.element,\n          horizontal: this.horizontal,\n          scrollContainer: this.infiniteScrollContainer,\n          scrollWindow: this.scrollWindow,\n          throttle: this.infiniteScrollThrottle,\n          upDistance: this.infiniteScrollUpDistance\n        }).subscribe((payload: any) => this.zone.run(() => this.handleOnScroll(payload)));\n      });\n    }\n  }\n\n  handleOnScroll({ type, payload }: IInfiniteScrollAction) {\n    switch (type) {\n      case InfiniteScrollActions.DOWN:\n        return this.scrolled.emit(payload);\n\n      case InfiniteScrollActions.UP:\n        return this.scrolledUp.emit(payload);\n\n      default:\n        return;\n    }\n  }\n\n  ngOnDestroy() {\n    this.destroyScroller();\n  }\n\n  destroyScroller() {\n    if (this.disposeScroller) {\n      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window.document : customRoot;\n  return rootEl.querySelector(selector);\n}\n\nexport function inputPropChanged(prop: SimpleChange): boolean {\n  return prop && !prop.firstChange;\n}\n\nexport function hasWindowDefined(): boolean {\n  return typeof window !== 'undefined';\n}\n","import { IInfiniteScrollEvent, IPositionStats } from '../models';\n\nexport interface IScrollerProps extends IDistanceRange {\n  container: IPositionStats;\n  alwaysCallback: boolean;\n  disabled: boolean;\n}\n\nexport interface ITriggerEvents {\n  down: (event: any) => any;\n  up: (event: any) => any;\n}\n\nexport interface IDistanceRange {\n  down: number;\n  up: number;\n}\n\nexport interface IScrollConfig {\n  alwaysCallback: boolean;\n  shouldFireScrollEvent: boolean;\n}\n\nexport function shouldTriggerEvents(\n  alwaysCallback: boolean,\n  shouldFireScrollEvent: boolean,\n  isTriggeredCurrentTotal: boolean\n) {\n  if (alwaysCallback && shouldFireScrollEvent) {\n    return true;\n  }\n  if (!isTriggeredCurrentTotal && shouldFireScrollEvent) {\n    return true;\n  }\n  return false;\n}\n","import { ElementRef } from '@angular/core';\n\nimport { ContainerRef, IPositionElements, IPositionStats, IResolver } from '../models';\nimport { AxisResolver } from './axis-resolver';\n\nexport function createResolver({\n  windowElement,\n  axis\n}: IPositionElements): IResolver {\n  return createResolverWithContainer(\n    { axis, isWindow: isElementWindow(windowElement) },\n    windowElement\n  );\n}\n\nexport function createResolverWithContainer(\n  resolver,\n  windowElement: ContainerRef\n) {\n  const container =\n    resolver.isWindow || (windowElement && !windowElement.nativeElement)\n      ? windowElement\n      : windowElement.nativeElement;\n  return { ...resolver, container };\n}\n\nexport function isElementWindow(windowElement: ContainerRef): boolean {\n  const isWindow = ['Window', 'global'].some((obj: string) =>\n    Object.prototype.toString.call(windowElement).includes(obj)\n  );\n  return isWindow;\n}\n\nexport function getDocumentElement(isContainerWindow: boolean, windowElement) {\n  return isContainerWindow ? windowElement.document.documentElement : null;\n}\n\nexport function calculatePoints(element: ElementRef, resolver: IResolver) {\n  const height = extractHeightForElement(resolver);\n  return resolver.isWindow\n    ? calculatePointsForWindow(height, element, resolver)\n    : calculatePointsForElement(height, element, resolver);\n}\n\nexport function calculatePointsForWindow(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container, isWindow } = resolver;\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  // scrolled until now / current y point\n  const scrolled =\n    height +\n    getElementPageYOffset(\n      getDocumentElement(isWindow, container),\n      axis,\n      isWindow\n    );\n  // total height / most bottom y point\n  const nativeElementHeight = getElementHeight(\n    element.nativeElement,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n  const totalToScroll =\n    getElementOffsetTop(element.nativeElement, axis, isWindow) +\n    nativeElementHeight;\n  return { height, scrolled, totalToScroll, isWindow };\n}\n\nexport function calculatePointsForElement(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container } = resolver;\n  // perhaps use container.offsetTop instead of 'scrollTop'\n  const scrolled = container[axis.scrollTopKey()];\n  const totalToScroll = container[axis.scrollHeightKey()];\n  return { height, scrolled, totalToScroll, isWindow: false };\n}\n\nexport function extractHeightPropKeys(axis: AxisResolver) {\n  return {\n    offsetHeightKey: axis.offsetHeightKey(),\n    clientHeightKey: axis.clientHeightKey()\n  };\n}\n\nexport function extractHeightForElement({\n  container,\n  isWindow,\n  axis\n}: IResolver) {\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  return getElementHeight(\n    container,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n}\nexport function getElementHeight(\n  elem: any,\n  isWindow: boolean,\n  offsetHeightKey: string,\n  clientHeightKey: string\n) {\n  if (isNaN(elem[offsetHeightKey])) {\n    const docElem = getDocumentElement(isWindow, elem);\n    return docElem ? docElem[clientHeightKey] : 0;\n  } else {\n    return elem[offsetHeightKey];\n  }\n}\n\nexport function getElementOffsetTop(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const topKey = axis.topKey();\n  // elem = elem.nativeElement;\n  if (!elem.getBoundingClientRect) {\n    // || elem.css('none')) {\n    return;\n  }\n  return (\n    elem.getBoundingClientRect()[topKey] +\n    getElementPageYOffset(elem, axis, isWindow)\n  );\n}\n\nexport function getElementPageYOffset(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const pageYOffset = axis.pageYOffsetKey();\n  const scrollTop = axis.scrollTopKey();\n  const offsetTop = axis.offsetTopKey();\n\n  if (isNaN(window.pageYOffset)) {\n    return getDocumentElement(isWindow, elem)[scrollTop];\n  } else if (elem.ownerDocument) {\n    return elem.ownerDocument.defaultView[pageYOffset];\n  } else {\n    return elem[offsetTop];\n  }\n}\n","import { IPositionStats, IScrollState, IScrollerDistance } from '../models';\n\nexport function shouldFireScrollEvent(\n  container: IPositionStats,\n  distance: IScrollerDistance,\n  scrollingDown: boolean\n) {\n  let remaining: number;\n  let containerBreakpoint: number;\n  if (container.totalToScroll <= 0) {\n    return false;\n  }\n\n  const scrolledUntilNow = container.isWindow ? container.scrolled : container.height + container.scrolled;\n  if (scrollingDown) {\n    remaining =\n      (container.totalToScroll - scrolledUntilNow) / container.totalToScroll;\n    containerBreakpoint = distance.down / 10;\n  } else {\n    const totalHiddenContentHeight =\n      container.scrolled + (container.totalToScroll - scrolledUntilNow);\n    remaining = container.scrolled / totalHiddenContentHeight;\n    containerBreakpoint = distance.up / 10;\n  }\n\n  const shouldFireEvent: boolean = remaining <= containerBreakpoint;\n  return shouldFireEvent;\n}\n\nexport function isScrollingDownwards(\n  lastScrollPosition: number,\n  container: IPositionStats\n) {\n  return lastScrollPosition < container.scrolled;\n}\n\nexport function getScrollStats(\n  lastScrollPosition: number,\n  container: IPositionStats,\n  distance: IScrollerDistance\n) {\n  const scrollDown = isScrollingDownwards(lastScrollPosition, container);\n  return {\n    fire: shouldFireScrollEvent(container, distance, scrollDown),\n    scrollDown\n  };\n}\n\nexport function updateScrollPosition(\n  position: number,\n  scrollState: IScrollState\n) {\n  return (scrollState.lastScrollPosition = position);\n}\n\nexport function updateTotalToScroll(\n  totalToScroll: number,\n  scrollState: IScrollState\n) {\n  if (scrollState.lastTotalToScroll !== totalToScroll) {\n    scrollState.lastTotalToScroll = scrollState.totalToScroll;\n    scrollState.totalToScroll = totalToScroll;\n  }\n}\n\nexport function isSameTotalToScroll(scrollState: IScrollState) {\n  return scrollState.totalToScroll === scrollState.lastTotalToScroll;\n}\n\nexport function updateTriggeredFlag(\n  scroll,\n  scrollState: IScrollState,\n  triggered: boolean,\n  isScrollingDown: boolean\n) {\n  if (isScrollingDown) {\n    scrollState.triggered.down = scroll;\n  } else {\n    scrollState.triggered.up = scroll;\n  }\n}\n\nexport function isTriggeredScroll(\n  totalToScroll,\n  scrollState: IScrollState,\n  isScrollingDown: boolean\n) {\n  return isScrollingDown\n    ? scrollState.triggered.down === totalToScroll\n    : scrollState.triggered.up === totalToScroll;\n}\n\nexport function updateScrollState(\n  scrollState: IScrollState,\n  scrolledUntilNow: number,\n  totalToScroll: number\n) {\n  updateScrollPosition(scrolledUntilNow, scrollState);\n  updateTotalToScroll(totalToScroll, scrollState);\n  // const isSameTotal = isSameTotalToScroll(scrollState);\n  // if (!isSameTotal) {\n  //   updateTriggeredFlag(scrollState, false, isScrollingDown);\n  // }\n}\n","import { Observable, of, fromEvent } from 'rxjs';\nimport { map, mergeMap, tap, sampleTime, filter } from 'rxjs/operators';\n\nimport * as Models from '../models';\nimport { AxisResolver } from './axis-resolver';\nimport { shouldTriggerEvents } from './event-trigger';\nimport { resolveContainerElement } from './ngx-ins-utils';\nimport { calculatePoints, createResolver } from './position-resolver';\nimport * as ScrollResolver from './scroll-resolver';\nimport { ScrollState } from './scroll-state';\n\nexport function createScroller(config: Models.IScroller) {\n  const { scrollContainer, scrollWindow, element, fromRoot } = config;\n  const resolver = createResolver({\n    axis: new AxisResolver(!config.horizontal),\n    windowElement: resolveContainerElement(\n      scrollContainer,\n      scrollWindow,\n      element,\n      fromRoot\n    )\n  });\n  const scrollState = new ScrollState({\n    totalToScroll: calculatePoints(element, resolver)\n  });\n  const options: Models.IScrollRegisterConfig = {\n    container: resolver.container,\n    throttle: config.throttle\n  };\n  const distance = {\n    up: config.upDistance,\n    down: config.downDistance\n  };\n  return attachScrollEvent(options).pipe(\n    mergeMap(() => of(calculatePoints(element, resolver))),\n    map((positionStats: Models.IPositionStats) =>\n      toInfiniteScrollParams(\n        scrollState.lastScrollPosition,\n        positionStats,\n        distance\n      )\n    ),\n    tap(({ stats }: Models.IScrollParams) =>\n      scrollState.updateScroll(stats.scrolled, stats.totalToScroll)\n    ),\n    filter(\n      ({ fire, scrollDown, stats: { totalToScroll } }: Models.IScrollParams) =>\n        shouldTriggerEvents(\n          config.alwaysCallback,\n          fire,\n          scrollState.isTriggeredScroll(totalToScroll, scrollDown)\n        )\n    ),\n    tap(({ scrollDown, stats: { totalToScroll } }: Models.IScrollParams) => {\n      scrollState.updateTriggeredFlag(totalToScroll, scrollDown);\n    }),\n    map(toInfiniteScrollAction)\n  );\n}\n\nexport function attachScrollEvent(\n  options: Models.IScrollRegisterConfig\n): Observable<{}> {\n  let obs = fromEvent(options.container, 'scroll');\n  // For an unknown reason calling `sampleTime()` causes trouble for many users, even with `options.throttle = 0`.\n  // Let's avoid calling the function unless needed.\n  // See https://github.com/orizens/ngx-infinite-scroll/issues/198\n  if (options.throttle) {\n    obs = obs.pipe(sampleTime(options.throttle));\n  }\n  return obs;\n}\n\nexport function toInfiniteScrollParams(\n  lastScrollPosition: number,\n  stats: Models.IPositionStats,\n  distance: Models.IScrollerDistance\n): Models.IScrollParams {\n  const { scrollDown, fire } = ScrollResolver.getScrollStats(\n    lastScrollPosition,\n    stats,\n    distance\n  );\n  return {\n    scrollDown,\n    fire,\n    stats\n  };\n}\n\nexport const InfiniteScrollActions = {\n  DOWN: '[NGX_ISE] DOWN',\n  UP: '[NGX_ISE] UP'\n};\n\nexport function toInfiniteScrollAction(\n  response: Models.IScrollParams\n): Models.IInfiniteScrollAction {\n  const {\n    scrollDown,\n    stats: { scrolled: currentScrollPosition }\n  } = response;\n  return {\n    type: scrollDown ? InfiniteScrollActions.DOWN : InfiniteScrollActions.UP,\n    payload: {\n      currentScrollPosition\n    }\n  };\n}\n","const VerticalProps = {\n  clientHeight: \"clientHeight\",\n  offsetHeight: \"offsetHeight\",\n  scrollHeight: \"scrollHeight\",\n  pageYOffset: \"pageYOffset\",\n  offsetTop: \"offsetTop\",\n  scrollTop: \"scrollTop\",\n  top: \"top\"\n};\n\nconst HorizontalProps = {\n  clientHeight: \"clientWidth\",\n  offsetHeight: \"offsetWidth\",\n  scrollHeight: \"scrollWidth\",\n  pageYOffset: \"pageXOffset\",\n  offsetTop: \"offsetLeft\",\n  scrollTop: \"scrollLeft\",\n  top: \"left\"\n};\n\nexport class AxisResolver {\n  private propsMap: any;\n\n  constructor(private vertical: boolean = true) {\n    this.propsMap = vertical ? VerticalProps : HorizontalProps;\n  }\n  clientHeightKey() {\n    return this.propsMap.clientHeight;\n  }\n  offsetHeightKey() {\n    return this.propsMap.offsetHeight;\n  }\n  scrollHeightKey() {\n    return this.propsMap.scrollHeight;\n  }\n  pageYOffsetKey() {\n    return this.propsMap.pageYOffset;\n  }\n  offsetTopKey() {\n    return this.propsMap.offsetTop;\n  }\n  scrollTopKey() {\n    return this.propsMap.scrollTop;\n  }\n  topKey() {\n    return this.propsMap.top;\n  }\n}\n","import { IScrollState, IScrollerDistance } from '../models';\n\nexport class ScrollState implements IScrollState {\n  lastScrollPosition = 0;\n  lastTotalToScroll = 0;\n  totalToScroll = 0;\n  triggered: IScrollerDistance = {\n    down: 0,\n    up: 0\n  };\n\n  constructor({ totalToScroll }) {\n    this.totalToScroll = totalToScroll;\n  }\n\n  updateScrollPosition(position: number) {\n    return (this.lastScrollPosition = position);\n  }\n\n  updateTotalToScroll(totalToScroll: number) {\n    if (this.lastTotalToScroll !== totalToScroll) {\n      this.lastTotalToScroll = this.totalToScroll;\n      this.totalToScroll = totalToScroll;\n    }\n  }\n\n  updateScroll(scrolledUntilNow: number, totalToScroll: number) {\n    this.updateScrollPosition(scrolledUntilNow);\n    this.updateTotalToScroll(totalToScroll);\n  }\n\n  updateTriggeredFlag(scroll, isScrollingDown: boolean) {\n    if (isScrollingDown) {\n      this.triggered.down = scroll;\n    } else {\n      this.triggered.up = scroll;\n    }\n  }\n\n  isTriggeredScroll(totalToScroll, isScrollingDown: boolean) {\n    return isScrollingDown\n      ? this.triggered.down === totalToScroll\n      : this.triggered.up === totalToScroll;\n  }\n}\n","import {\n  AfterViewInit,\n  Directive,\n  ElementRef,\n  EventEmitter,\n  Input,\n  NgZone,\n  OnChanges,\n  OnDestroy,\n  Output,\n  SimpleChanges\n} from '@angular/core';\nimport {Subscription} from 'rxjs';\n\nimport { IInfiniteScrollEvent, IInfiniteScrollAction } from '../models';\nimport { hasWindowDefined, inputPropChanged } from '../services/ngx-ins-utils';\nimport { createScroller, InfiniteScrollActions } from '../services/scroll-register';\n\n@Directive({\n  selector: '[infiniteScroll], [infinite-scroll], [data-infinite-scroll]'\n})\nexport class InfiniteScrollDirective\n  implements OnDestroy, OnChanges, AfterViewInit {\n  @Output() scrolled = new EventEmitter<IInfiniteScrollEvent>();\n  @Output() scrolledUp = new EventEmitter<IInfiniteScrollEvent>();\n\n  @Input() infiniteScrollDistance: number = 2;\n  @Input() infiniteScrollUpDistance: number = 1.5;\n  @Input() infiniteScrollThrottle: number = 150;\n  @Input() infiniteScrollDisabled: boolean = false;\n  @Input() infiniteScrollContainer: any = null;\n  @Input() scrollWindow: boolean = true;\n  @Input() immediateCheck: boolean = false;\n  @Input() horizontal: boolean = false;\n  @Input() alwaysCallback: boolean = false;\n  @Input() fromRoot: boolean = false;\n\n  private disposeScroller: Subscription;\n\n  constructor(private element: ElementRef, private zone: NgZone) { }\n\n  ngAfterViewInit() {\n    if (!this.infiniteScrollDisabled) {\n      this.setup();\n    }\n  }\n\n  ngOnChanges({ infiniteScrollContainer, infiniteScrollDisabled, infiniteScrollDistance }: SimpleChanges) {\n    const containerChanged = inputPropChanged(infiniteScrollContainer);\n    const disabledChanged = inputPropChanged(infiniteScrollDisabled);\n    const distanceChanged = inputPropChanged(infiniteScrollDistance);\n    const shouldSetup = (!disabledChanged && !this.infiniteScrollDisabled) ||\n      (disabledChanged && !infiniteScrollDisabled.currentValue) || distanceChanged;\n\n    if (containerChanged || disabledChanged || distanceChanged) {\n      this.destroyScroller();\n      if (shouldSetup) {\n        this.setup();\n      }\n    }\n  }\n\n  setup() {\n    if (hasWindowDefined()) {\n      this.zone.runOutsideAngular(() => {\n        this.disposeScroller = createScroller({\n          fromRoot: this.fromRoot,\n          alwaysCallback: this.alwaysCallback,\n          disable: this.infiniteScrollDisabled,\n          downDistance: this.infiniteScrollDistance,\n          element: this.element,\n          horizontal: this.horizontal,\n          scrollContainer: this.infiniteScrollContainer,\n          scrollWindow: this.scrollWindow,\n          throttle: this.infiniteScrollThrottle,\n          upDistance: this.infiniteScrollUpDistance\n        }).subscribe((payload: any) => this.zone.run(() => this.handleOnScroll(payload)));\n      });\n    }\n  }\n\n  handleOnScroll({ type, payload }: IInfiniteScrollAction) {\n    switch (type) {\n      case InfiniteScrollActions.DOWN:\n        return this.scrolled.emit(payload);\n\n      case InfiniteScrollActions.UP:\n        return this.scrolledUp.emit(payload);\n\n      default:\n        return;\n    }\n  }\n\n  ngOnDestroy() {\n    this.destroyScroller();\n  }\n\n  destroyScroller() {\n    if (this.disposeScroller) {\n      this.disposeScroller.unsubscribe();\n    }\n  }\n}\n","import { NgModule } from '@angular/core';\n\nimport { InfiniteScrollDirective } from './infinite-scroll.directive';\n\n@NgModule({\n  declarations: [InfiniteScrollDirective],\n  exports: [InfiniteScrollDirective],\n  imports: [],\n  providers: []\n})\nexport class InfiniteScrollModule { 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modules/ngx-infinite-scroll.es5.js

@@ -6,3 +6,3 @@ import { Directive, ElementRef, EventEmitter, Input, NgModule, NgZone, Output } from '@angular/core';
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -59,3 +59,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -137,3 +137,3 @@ /** @type {?} */
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -169,3 +169,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -190,3 +190,3 @@ /**
         : windowElement.nativeElement;
-    return Object.assign({}, resolver, { container: container });
+    return Object.assign(Object.assign({}, resolver), { container: container });
 }
@@ -199,3 +199,6 @@ /**
     /** @type {?} */
-    var isWindow = ['Window', 'global'].some(function (obj) { return Object.prototype.toString.call(windowElement).includes(obj); });
+    var isWindow = ['Window', 'global'].some(( /**
+     * @param {?} obj
+     * @return {?}
+     */function (obj) { return Object.prototype.toString.call(windowElement).includes(obj); }));
     return isWindow;
@@ -325,3 +328,3 @@ }
     var offsetTop = axis.offsetTopKey();
-    if (isNaN(window[pageYOffset])) {
+    if (isNaN(window.pageYOffset)) {
         return getDocumentElement(isWindow, elem)[scrollTop];
@@ -338,3 +341,3 @@ }
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -429,3 +432,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -500,3 +503,3 @@ var ScrollState = /** @class */ (function () {
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -528,12 +531,26 @@ /**
     };
-    return attachScrollEvent(options).pipe(mergeMap(function () { return of(calculatePoints(element, resolver)); }), map(function (positionStats) { return toInfiniteScrollParams(scrollState.lastScrollPosition, positionStats, distance); }), tap(function (_a) {
+    return attachScrollEvent(options).pipe(mergeMap(( /**
+     * @return {?}
+     */function () { return of(calculatePoints(element, resolver)); })), map(( /**
+     * @param {?} positionStats
+     * @return {?}
+     */function (positionStats) { return toInfiniteScrollParams(scrollState.lastScrollPosition, positionStats, distance); })), tap(( /**
+     * @param {?} __0
+     * @return {?}
+     */function (_a) {
         var stats = _a.stats;
         return scrollState.updateScroll(stats.scrolled, stats.totalToScroll);
-    }), filter(function (_a) {
+    })), filter(( /**
+     * @param {?} __0
+     * @return {?}
+     */function (_a) {
         var fire = _a.fire, scrollDown = _a.scrollDown, totalToScroll = _a.stats.totalToScroll;
         return shouldTriggerEvents(config.alwaysCallback, fire, scrollState.isTriggeredScroll(totalToScroll, scrollDown));
-    }), tap(function (_a) {
+    })), tap(( /**
+     * @param {?} __0
+     * @return {?}
+     */function (_a) {
         var scrollDown = _a.scrollDown, totalToScroll = _a.stats.totalToScroll;
         scrollState.updateTriggeredFlag(totalToScroll, scrollDown);
-    }), map(toInfiniteScrollAction));
+    })), map(toInfiniteScrollAction));
 }
@@ -589,3 +606,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -649,3 +666,5 @@ var InfiniteScrollDirective = /** @class */ (function () {
         if (hasWindowDefined()) {
-            this.zone.runOutsideAngular(function () {
+            this.zone.runOutsideAngular(( /**
+             * @return {?}
+             */function () {
                 _this.disposeScroller = createScroller({
@@ -662,4 +681,9 @@ fromRoot: _this.fromRoot,
                     upDistance: _this.infiniteScrollUpDistance
-                }).subscribe(function (payload) { return _this.zone.run(function () { return _this.handleOnScroll(payload); }); });
-            });
+                }).subscribe(( /**
+                 * @param {?} payload
+                 * @return {?}
+                 */function (payload) { return _this.zone.run(( /**
+                 * @return {?}
+                 */function () { return _this.handleOnScroll(payload); })); }));
+            }));
         }
@@ -724,3 +748,3 @@ };
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -742,7 +766,7 @@ var InfiniteScrollModule = /** @class */ (function () {
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
 /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -761,3 +785,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -764,0 +788,0 @@ /**

modules/ngx-infinite-scroll.es5.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"ngx-infinite-scroll.es5.js","sources":["../../ngx-infinite-scroll.ts","../../public_api.ts","../../src/ngx-infinite-scroll.ts","../../src/modules/ngx-infinite-scroll.module.ts","../../src/modules/infinite-scroll.directive.ts","../../src/services/scroll-register.ts","../../src/services/scroll-state.ts","../../src/services/scroll-resolver.ts","../../src/services/position-resolver.ts","../../src/services/event-trigger.ts","../../src/services/axis-resolver.ts","../../src/services/ngx-ins-utils.ts"],"sourcesContent":["export * from './public_api';\n","/**\n * Angular library starter.\n * Build an Angular library compatible with AoT compilation & Tree shaking.\n * Written by Roberto Simonetti.\n * MIT license.\n * https://github.com/robisim74/angular-library-starter\n */\n\n/**\n * Entry point for all public APIs of the package.\n */\nexport * from './src/ngx-infinite-scroll';\n\n","// Public classes.\nexport {\n  ContainerRef,\n  IInfiniteScrollEvent,\n  IPositionElements,\n  IPositionStats,\n  IResolver\n} from './models';\n\nexport { InfiniteScrollDirective } from './modules/infinite-scroll.directive';\nexport { InfiniteScrollModule } from './modules/ngx-infinite-scroll.module';\n","import { NgModule } from '@angular/core';\n\nimport { InfiniteScrollDirective } from './infinite-scroll.directive';\n\n@NgModule({\n  declarations: [InfiniteScrollDirective],\n  exports: [InfiniteScrollDirective],\n  imports: [],\n  providers: []\n})\nexport class InfiniteScrollModule { }\n","import {\n  AfterViewInit,\n  Directive,\n  ElementRef,\n  EventEmitter,\n  Input,\n  NgZone,\n  OnChanges,\n  OnDestroy,\n  Output,\n  SimpleChanges\n} from '@angular/core';\nimport {Subscription} from 'rxjs';\n\nimport { IInfiniteScrollEvent, IInfiniteScrollAction } from '../models';\nimport { hasWindowDefined, inputPropChanged } from '../services/ngx-ins-utils';\nimport { createScroller, InfiniteScrollActions } from '../services/scroll-register';\n\n@Directive({\n  selector: '[infiniteScroll], [infinite-scroll], [data-infinite-scroll]'\n})\nexport class InfiniteScrollDirective\n  implements OnDestroy, OnChanges, AfterViewInit {\n  @Output() scrolled = new EventEmitter<IInfiniteScrollEvent>();\n  @Output() scrolledUp = new EventEmitter<IInfiniteScrollEvent>();\n\n  @Input() infiniteScrollDistance: number = 2;\n  @Input() infiniteScrollUpDistance: number = 1.5;\n  @Input() infiniteScrollThrottle: number = 150;\n  @Input() infiniteScrollDisabled: boolean = false;\n  @Input() infiniteScrollContainer: any = null;\n  @Input() scrollWindow: boolean = true;\n  @Input() immediateCheck: boolean = false;\n  @Input() horizontal: boolean = false;\n  @Input() alwaysCallback: boolean = false;\n  @Input() fromRoot: boolean = false;\n\n  private disposeScroller: Subscription;\n\n  constructor(private element: ElementRef, private zone: NgZone) { }\n\n  ngAfterViewInit() {\n    if (!this.infiniteScrollDisabled) {\n      this.setup();\n    }\n  }\n\n  ngOnChanges({ infiniteScrollContainer, infiniteScrollDisabled, infiniteScrollDistance }: SimpleChanges) {\n    const containerChanged = inputPropChanged(infiniteScrollContainer);\n    const disabledChanged = inputPropChanged(infiniteScrollDisabled);\n    const distanceChanged = inputPropChanged(infiniteScrollDistance);\n    const shouldSetup = (!disabledChanged && !this.infiniteScrollDisabled) ||\n      (disabledChanged && !infiniteScrollDisabled.currentValue) || distanceChanged;\n\n    if (containerChanged || disabledChanged || distanceChanged) {\n      this.destroyScroller();\n      if (shouldSetup) {\n        this.setup();\n      }\n    }\n  }\n\n  setup() {\n    if (hasWindowDefined()) {\n      this.zone.runOutsideAngular(() => {\n        this.disposeScroller = createScroller({\n          fromRoot: this.fromRoot,\n          alwaysCallback: this.alwaysCallback,\n          disable: this.infiniteScrollDisabled,\n          downDistance: this.infiniteScrollDistance,\n          element: this.element,\n          horizontal: this.horizontal,\n          scrollContainer: this.infiniteScrollContainer,\n          scrollWindow: this.scrollWindow,\n          throttle: this.infiniteScrollThrottle,\n          upDistance: this.infiniteScrollUpDistance\n        }).subscribe((payload: any) => this.zone.run(() => this.handleOnScroll(payload)));\n      });\n    }\n  }\n\n  handleOnScroll({ type, payload }: IInfiniteScrollAction) {\n    switch (type) {\n      case InfiniteScrollActions.DOWN:\n        return this.scrolled.emit(payload);\n\n      case InfiniteScrollActions.UP:\n        return this.scrolledUp.emit(payload);\n\n      default:\n        return;\n    }\n  }\n\n  ngOnDestroy() {\n    this.destroyScroller();\n  }\n\n  destroyScroller() {\n    if (this.disposeScroller) {\n      this.disposeScroller.unsubscribe();\n    }\n  }\n}\n","import { Observable, of, fromEvent } from 'rxjs';\nimport { map, mergeMap, tap, sampleTime, filter } from 'rxjs/operators';\n\nimport * as Models from '../models';\nimport { AxisResolver } from './axis-resolver';\nimport { shouldTriggerEvents } from './event-trigger';\nimport { resolveContainerElement } from './ngx-ins-utils';\nimport { calculatePoints, createResolver } from './position-resolver';\nimport * as ScrollResolver from './scroll-resolver';\nimport { ScrollState } from './scroll-state';\n\nexport function createScroller(config: Models.IScroller) {\n  const { scrollContainer, scrollWindow, element, fromRoot } = config;\n  const resolver = createResolver({\n    axis: new AxisResolver(!config.horizontal),\n    windowElement: resolveContainerElement(\n      scrollContainer,\n      scrollWindow,\n      element,\n      fromRoot\n    )\n  });\n  const scrollState = new ScrollState({\n    totalToScroll: calculatePoints(element, resolver)\n  });\n  const options: Models.IScrollRegisterConfig = {\n    container: resolver.container,\n    throttle: config.throttle\n  };\n  const distance = {\n    up: config.upDistance,\n    down: config.downDistance\n  };\n  return attachScrollEvent(options).pipe(\n    mergeMap(() => of(calculatePoints(element, resolver))),\n    map((positionStats: Models.IPositionStats) =>\n      toInfiniteScrollParams(\n        scrollState.lastScrollPosition,\n        positionStats,\n        distance\n      )\n    ),\n    tap(({ stats }: Models.IScrollParams) =>\n      scrollState.updateScroll(stats.scrolled, stats.totalToScroll)\n    ),\n    filter(\n      ({ fire, scrollDown, stats: { totalToScroll } }: Models.IScrollParams) =>\n        shouldTriggerEvents(\n          config.alwaysCallback,\n          fire,\n          scrollState.isTriggeredScroll(totalToScroll, scrollDown)\n        )\n    ),\n    tap(({ scrollDown, stats: { totalToScroll } }: Models.IScrollParams) => {\n      scrollState.updateTriggeredFlag(totalToScroll, scrollDown);\n    }),\n    map(toInfiniteScrollAction)\n  );\n}\n\nexport function attachScrollEvent(\n  options: Models.IScrollRegisterConfig\n): Observable<{}> {\n  let obs = fromEvent(options.container, 'scroll');\n  // For an unknown reason calling `sampleTime()` causes trouble for many users, even with `options.throttle = 0`.\n  // Let's avoid calling the function unless needed.\n  // See https://github.com/orizens/ngx-infinite-scroll/issues/198\n  if (options.throttle) {\n    obs = obs.pipe(sampleTime(options.throttle));\n  }\n  return obs;\n}\n\nexport function toInfiniteScrollParams(\n  lastScrollPosition: number,\n  stats: Models.IPositionStats,\n  distance: Models.IScrollerDistance\n): Models.IScrollParams {\n  const { scrollDown, fire } = ScrollResolver.getScrollStats(\n    lastScrollPosition,\n    stats,\n    distance\n  );\n  return {\n    scrollDown,\n    fire,\n    stats\n  };\n}\n\nexport const InfiniteScrollActions = {\n  DOWN: '[NGX_ISE] DOWN',\n  UP: '[NGX_ISE] UP'\n};\n\nexport function toInfiniteScrollAction(\n  response: Models.IScrollParams\n): Models.IInfiniteScrollAction {\n  const {\n    scrollDown,\n    stats: { scrolled: currentScrollPosition }\n  } = response;\n  return {\n    type: scrollDown ? InfiniteScrollActions.DOWN : InfiniteScrollActions.UP,\n    payload: {\n      currentScrollPosition\n    }\n  };\n}\n","import { IScrollState, IScrollerDistance } from '../models';\n\nexport class ScrollState implements IScrollState {\n  lastScrollPosition = 0;\n  lastTotalToScroll = 0;\n  totalToScroll = 0;\n  triggered: IScrollerDistance = {\n    down: 0,\n    up: 0\n  };\n\n  constructor({ totalToScroll }) {\n    this.totalToScroll = totalToScroll;\n  }\n\n  updateScrollPosition(position: number) {\n    return (this.lastScrollPosition = position);\n  }\n\n  updateTotalToScroll(totalToScroll: number) {\n    if (this.lastTotalToScroll !== totalToScroll) {\n      this.lastTotalToScroll = this.totalToScroll;\n      this.totalToScroll = totalToScroll;\n    }\n  }\n\n  updateScroll(scrolledUntilNow: number, totalToScroll: number) {\n    this.updateScrollPosition(scrolledUntilNow);\n    this.updateTotalToScroll(totalToScroll);\n  }\n\n  updateTriggeredFlag(scroll, isScrollingDown: boolean) {\n    if (isScrollingDown) {\n      this.triggered.down = scroll;\n    } else {\n      this.triggered.up = scroll;\n    }\n  }\n\n  isTriggeredScroll(totalToScroll, isScrollingDown: boolean) {\n    return isScrollingDown\n      ? this.triggered.down === totalToScroll\n      : this.triggered.up === totalToScroll;\n  }\n}\n","import { IPositionStats, IScrollState, IScrollerDistance } from '../models';\n\nexport function shouldFireScrollEvent(\n  container: IPositionStats,\n  distance: IScrollerDistance,\n  scrollingDown: boolean\n) {\n  let remaining: number;\n  let containerBreakpoint: number;\n  if (container.totalToScroll <= 0) {\n    return false;\n  }\n\n  const scrolledUntilNow = container.isWindow ? container.scrolled : container.height + container.scrolled;\n  if (scrollingDown) {\n    remaining =\n      (container.totalToScroll - scrolledUntilNow) / container.totalToScroll;\n    containerBreakpoint = distance.down / 10;\n  } else {\n    const totalHiddenContentHeight =\n      container.scrolled + (container.totalToScroll - scrolledUntilNow);\n    remaining = container.scrolled / totalHiddenContentHeight;\n    containerBreakpoint = distance.up / 10;\n  }\n\n  const shouldFireEvent: boolean = remaining <= containerBreakpoint;\n  return shouldFireEvent;\n}\n\nexport function isScrollingDownwards(\n  lastScrollPosition: number,\n  container: IPositionStats\n) {\n  return lastScrollPosition < container.scrolled;\n}\n\nexport function getScrollStats(\n  lastScrollPosition: number,\n  container: IPositionStats,\n  distance: IScrollerDistance\n) {\n  const scrollDown = isScrollingDownwards(lastScrollPosition, container);\n  return {\n    fire: shouldFireScrollEvent(container, distance, scrollDown),\n    scrollDown\n  };\n}\n\nexport function updateScrollPosition(\n  position: number,\n  scrollState: IScrollState\n) {\n  return (scrollState.lastScrollPosition = position);\n}\n\nexport function updateTotalToScroll(\n  totalToScroll: number,\n  scrollState: IScrollState\n) {\n  if (scrollState.lastTotalToScroll !== totalToScroll) {\n    scrollState.lastTotalToScroll = scrollState.totalToScroll;\n    scrollState.totalToScroll = totalToScroll;\n  }\n}\n\nexport function isSameTotalToScroll(scrollState: IScrollState) {\n  return scrollState.totalToScroll === scrollState.lastTotalToScroll;\n}\n\nexport function updateTriggeredFlag(\n  scroll,\n  scrollState: IScrollState,\n  triggered: boolean,\n  isScrollingDown: boolean\n) {\n  if (isScrollingDown) {\n    scrollState.triggered.down = scroll;\n  } else {\n    scrollState.triggered.up = scroll;\n  }\n}\n\nexport function isTriggeredScroll(\n  totalToScroll,\n  scrollState: IScrollState,\n  isScrollingDown: boolean\n) {\n  return isScrollingDown\n    ? scrollState.triggered.down === totalToScroll\n    : scrollState.triggered.up === totalToScroll;\n}\n\nexport function updateScrollState(\n  scrollState: IScrollState,\n  scrolledUntilNow: number,\n  totalToScroll: number\n) {\n  updateScrollPosition(scrolledUntilNow, scrollState);\n  updateTotalToScroll(totalToScroll, scrollState);\n  // const isSameTotal = isSameTotalToScroll(scrollState);\n  // if (!isSameTotal) {\n  //   updateTriggeredFlag(scrollState, false, isScrollingDown);\n  // }\n}\n","import { ElementRef } from '@angular/core';\n\nimport { ContainerRef, IPositionElements, IPositionStats, IResolver } from '../models';\nimport { AxisResolver } from './axis-resolver';\n\nexport function createResolver({\n  windowElement,\n  axis\n}: IPositionElements): IResolver {\n  return createResolverWithContainer(\n    { axis, isWindow: isElementWindow(windowElement) },\n    windowElement\n  );\n}\n\nexport function createResolverWithContainer(\n  resolver,\n  windowElement: ContainerRef\n) {\n  const container =\n    resolver.isWindow || (windowElement && !windowElement.nativeElement)\n      ? windowElement\n      : windowElement.nativeElement;\n  return { ...resolver, container };\n}\n\nexport function isElementWindow(windowElement: ContainerRef): boolean {\n  const isWindow = ['Window', 'global'].some((obj: string) =>\n    Object.prototype.toString.call(windowElement).includes(obj)\n  );\n  return isWindow;\n}\n\nexport function getDocumentElement(isContainerWindow: boolean, windowElement) {\n  return isContainerWindow ? windowElement.document.documentElement : null;\n}\n\nexport function calculatePoints(element: ElementRef, resolver: IResolver) {\n  const height = extractHeightForElement(resolver);\n  return resolver.isWindow\n    ? calculatePointsForWindow(height, element, resolver)\n    : calculatePointsForElement(height, element, resolver);\n}\n\nexport function calculatePointsForWindow(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container, isWindow } = resolver;\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  // scrolled until now / current y point\n  const scrolled =\n    height +\n    getElementPageYOffset(\n      getDocumentElement(isWindow, container),\n      axis,\n      isWindow\n    );\n  // total height / most bottom y point\n  const nativeElementHeight = getElementHeight(\n    element.nativeElement,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n  const totalToScroll =\n    getElementOffsetTop(element.nativeElement, axis, isWindow) +\n    nativeElementHeight;\n  return { height, scrolled, totalToScroll, isWindow };\n}\n\nexport function calculatePointsForElement(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container } = resolver;\n  // perhaps use container.offsetTop instead of 'scrollTop'\n  const scrolled = container[axis.scrollTopKey()];\n  const totalToScroll = container[axis.scrollHeightKey()];\n  return { height, scrolled, totalToScroll, isWindow: false };\n}\n\nexport function extractHeightPropKeys(axis: AxisResolver) {\n  return {\n    offsetHeightKey: axis.offsetHeightKey(),\n    clientHeightKey: axis.clientHeightKey()\n  };\n}\n\nexport function extractHeightForElement({\n  container,\n  isWindow,\n  axis\n}: IResolver) {\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  return getElementHeight(\n    container,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n}\nexport function getElementHeight(\n  elem: any,\n  isWindow: boolean,\n  offsetHeightKey: string,\n  clientHeightKey: string\n) {\n  if (isNaN(elem[offsetHeightKey])) {\n    const docElem = getDocumentElement(isWindow, elem);\n    return docElem ? docElem[clientHeightKey] : 0;\n  } else {\n    return elem[offsetHeightKey];\n  }\n}\n\nexport function getElementOffsetTop(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const topKey = axis.topKey();\n  // elem = elem.nativeElement;\n  if (!elem.getBoundingClientRect) {\n    // || elem.css('none')) {\n    return;\n  }\n  return (\n    elem.getBoundingClientRect()[topKey] +\n    getElementPageYOffset(elem, axis, isWindow)\n  );\n}\n\nexport function getElementPageYOffset(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const pageYOffset = axis.pageYOffsetKey();\n  const scrollTop = axis.scrollTopKey();\n  const offsetTop = axis.offsetTopKey();\n\n  if (isNaN(window[pageYOffset])) {\n    return getDocumentElement(isWindow, elem)[scrollTop];\n  } else if (elem.ownerDocument) {\n    return elem.ownerDocument.defaultView[pageYOffset];\n  } else {\n    return elem[offsetTop];\n  }\n}\n","import { IInfiniteScrollEvent, IPositionStats } from '../models';\n\nexport interface IScrollerProps extends IDistanceRange {\n  container: IPositionStats;\n  alwaysCallback: boolean;\n  disabled: boolean;\n}\n\nexport interface ITriggerEvents {\n  down: (event: any) => any;\n  up: (event: any) => any;\n}\n\nexport interface IDistanceRange {\n  down: number;\n  up: number;\n}\n\nexport interface IScrollConfig {\n  alwaysCallback: boolean;\n  shouldFireScrollEvent: boolean;\n}\n\nexport function shouldTriggerEvents(\n  alwaysCallback: boolean,\n  shouldFireScrollEvent: boolean,\n  isTriggeredCurrentTotal: boolean\n) {\n  if (alwaysCallback && shouldFireScrollEvent) {\n    return true;\n  }\n  if (!isTriggeredCurrentTotal && shouldFireScrollEvent) {\n    return true;\n  }\n  return false;\n}\n","const VerticalProps = {\n  clientHeight: \"clientHeight\",\n  offsetHeight: \"offsetHeight\",\n  scrollHeight: \"scrollHeight\",\n  pageYOffset: \"pageYOffset\",\n  offsetTop: \"offsetTop\",\n  scrollTop: \"scrollTop\",\n  top: \"top\"\n};\n\nconst HorizontalProps = {\n  clientHeight: \"clientWidth\",\n  offsetHeight: \"offsetWidth\",\n  scrollHeight: \"scrollWidth\",\n  pageYOffset: \"pageXOffset\",\n  offsetTop: \"offsetLeft\",\n  scrollTop: \"scrollLeft\",\n  top: \"left\"\n};\n\nexport class AxisResolver {\n  private propsMap: any;\n\n  constructor(private vertical: boolean = true) {\n    this.propsMap = vertical ? VerticalProps : HorizontalProps;\n  }\n  clientHeightKey() {\n    return this.propsMap.clientHeight;\n  }\n  offsetHeightKey() {\n    return this.propsMap.offsetHeight;\n  }\n  scrollHeightKey() {\n    return this.propsMap.scrollHeight;\n  }\n  pageYOffsetKey() {\n    return this.propsMap.pageYOffset;\n  }\n  offsetTopKey() {\n    return this.propsMap.offsetTop;\n  }\n  scrollTopKey() {\n    return this.propsMap.scrollTop;\n  }\n  topKey() {\n    return this.propsMap.top;\n  }\n}\n","import { ElementRef, SimpleChange } from '@angular/core';\n\nexport function resolveContainerElement(\n  selector: string | any,\n  scrollWindow,\n  defaultElement,\n  fromRoot: boolean\n): any {\n  const hasWindow = window && !!window.document && window.document.documentElement;\n  let container = hasWindow && scrollWindow ? window : defaultElement;\n  if (selector) {\n    const containerIsString =\n      selector && hasWindow && typeof selector === 'string';\n    container = containerIsString\n      ? findElement(selector, defaultElement.nativeElement, fromRoot)\n      : selector;\n    if (!container) {\n      throw new Error('ngx-infinite-scroll {resolveContainerElement()}: selector for');\n    }\n  }\n  return container;\n}\n\nexport function findElement(\n  selector: string | any,\n  customRoot: ElementRef | any,\n  fromRoot: boolean\n) {\n  const rootEl = fromRoot ? window.document : customRoot;\n  return rootEl.querySelector(selector);\n}\n\nexport function inputPropChanged(prop: SimpleChange): boolean {\n  return prop && !prop.firstChange;\n}\n\nexport function hasWindowDefined(): boolean {\n  return typeof window !== 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+{"version":3,"file":"ngx-infinite-scroll.es5.js","sources":["../../ngx-infinite-scroll.ts","../../public-api.ts","../../src/ngx-infinite-scroll.ts","../../src/modules/ngx-infinite-scroll.module.ts","../../src/modules/infinite-scroll.directive.ts","../../src/services/scroll-register.ts","../../src/services/scroll-state.ts","../../src/services/scroll-resolver.ts","../../src/services/position-resolver.ts","../../src/services/event-trigger.ts","../../src/services/axis-resolver.ts","../../src/services/ngx-ins-utils.ts"],"sourcesContent":["export * from './public-api';\n","/**\n * Angular library starter.\n * Build an Angular library compatible with AoT compilation & Tree shaking.\n * Written by Roberto Simonetti.\n * MIT license.\n * https://github.com/robisim74/angular-library-starter\n */\n\n/**\n * Entry point for all public APIs of the package.\n */\nexport * from './src/ngx-infinite-scroll';\n\n","// Public classes.\nexport {\n  ContainerRef,\n  IInfiniteScrollEvent,\n  IPositionElements,\n  IPositionStats,\n  IResolver\n} from './models';\n\nexport { InfiniteScrollDirective } from './modules/infinite-scroll.directive';\nexport { InfiniteScrollModule } from './modules/ngx-infinite-scroll.module';\n","import { NgModule } from '@angular/core';\n\nimport { InfiniteScrollDirective } from './infinite-scroll.directive';\n\n@NgModule({\n  declarations: [InfiniteScrollDirective],\n  exports: [InfiniteScrollDirective],\n  imports: [],\n  providers: []\n})\nexport class InfiniteScrollModule { }\n","import {\n  AfterViewInit,\n  Directive,\n  ElementRef,\n  EventEmitter,\n  Input,\n  NgZone,\n  OnChanges,\n  OnDestroy,\n  Output,\n  SimpleChanges\n} from '@angular/core';\nimport {Subscription} from 'rxjs';\n\nimport { IInfiniteScrollEvent, IInfiniteScrollAction } from '../models';\nimport { hasWindowDefined, inputPropChanged } from '../services/ngx-ins-utils';\nimport { createScroller, InfiniteScrollActions } from '../services/scroll-register';\n\n@Directive({\n  selector: '[infiniteScroll], [infinite-scroll], [data-infinite-scroll]'\n})\nexport class InfiniteScrollDirective\n  implements OnDestroy, OnChanges, AfterViewInit {\n  @Output() scrolled = new EventEmitter<IInfiniteScrollEvent>();\n  @Output() scrolledUp = new EventEmitter<IInfiniteScrollEvent>();\n\n  @Input() infiniteScrollDistance: number = 2;\n  @Input() infiniteScrollUpDistance: number = 1.5;\n  @Input() infiniteScrollThrottle: number = 150;\n  @Input() infiniteScrollDisabled: boolean = false;\n  @Input() infiniteScrollContainer: any = null;\n  @Input() scrollWindow: boolean = true;\n  @Input() immediateCheck: boolean = false;\n  @Input() horizontal: boolean = false;\n  @Input() alwaysCallback: boolean = false;\n  @Input() fromRoot: boolean = false;\n\n  private disposeScroller: Subscription;\n\n  constructor(private element: ElementRef, private zone: NgZone) { }\n\n  ngAfterViewInit() {\n    if (!this.infiniteScrollDisabled) {\n      this.setup();\n    }\n  }\n\n  ngOnChanges({ infiniteScrollContainer, infiniteScrollDisabled, infiniteScrollDistance }: SimpleChanges) {\n    const containerChanged = inputPropChanged(infiniteScrollContainer);\n    const disabledChanged = inputPropChanged(infiniteScrollDisabled);\n    const distanceChanged = inputPropChanged(infiniteScrollDistance);\n    const shouldSetup = (!disabledChanged && !this.infiniteScrollDisabled) ||\n      (disabledChanged && !infiniteScrollDisabled.currentValue) || distanceChanged;\n\n    if (containerChanged || disabledChanged || distanceChanged) {\n      this.destroyScroller();\n      if (shouldSetup) {\n        this.setup();\n      }\n    }\n  }\n\n  setup() {\n    if (hasWindowDefined()) {\n      this.zone.runOutsideAngular(() => {\n        this.disposeScroller = createScroller({\n          fromRoot: this.fromRoot,\n          alwaysCallback: this.alwaysCallback,\n          disable: this.infiniteScrollDisabled,\n          downDistance: this.infiniteScrollDistance,\n          element: this.element,\n          horizontal: this.horizontal,\n          scrollContainer: this.infiniteScrollContainer,\n          scrollWindow: this.scrollWindow,\n          throttle: this.infiniteScrollThrottle,\n          upDistance: this.infiniteScrollUpDistance\n        }).subscribe((payload: any) => this.zone.run(() => this.handleOnScroll(payload)));\n      });\n    }\n  }\n\n  handleOnScroll({ type, payload }: IInfiniteScrollAction) {\n    switch (type) {\n      case InfiniteScrollActions.DOWN:\n        return this.scrolled.emit(payload);\n\n      case InfiniteScrollActions.UP:\n        return this.scrolledUp.emit(payload);\n\n      default:\n        return;\n    }\n  }\n\n  ngOnDestroy() {\n    this.destroyScroller();\n  }\n\n  destroyScroller() {\n    if (this.disposeScroller) {\n      this.disposeScroller.unsubscribe();\n    }\n  }\n}\n","import { Observable, of, fromEvent } from 'rxjs';\nimport { map, mergeMap, tap, sampleTime, filter } from 'rxjs/operators';\n\nimport * as Models from '../models';\nimport { AxisResolver } from './axis-resolver';\nimport { shouldTriggerEvents } from './event-trigger';\nimport { resolveContainerElement } from './ngx-ins-utils';\nimport { calculatePoints, createResolver } from './position-resolver';\nimport * as ScrollResolver from './scroll-resolver';\nimport { ScrollState } from './scroll-state';\n\nexport function createScroller(config: Models.IScroller) {\n  const { scrollContainer, scrollWindow, element, fromRoot } = config;\n  const resolver = createResolver({\n    axis: new AxisResolver(!config.horizontal),\n    windowElement: resolveContainerElement(\n      scrollContainer,\n      scrollWindow,\n      element,\n      fromRoot\n    )\n  });\n  const scrollState = new ScrollState({\n    totalToScroll: calculatePoints(element, resolver)\n  });\n  const options: Models.IScrollRegisterConfig = {\n    container: resolver.container,\n    throttle: config.throttle\n  };\n  const distance = {\n    up: config.upDistance,\n    down: config.downDistance\n  };\n  return attachScrollEvent(options).pipe(\n    mergeMap(() => of(calculatePoints(element, resolver))),\n    map((positionStats: Models.IPositionStats) =>\n      toInfiniteScrollParams(\n        scrollState.lastScrollPosition,\n        positionStats,\n        distance\n      )\n    ),\n    tap(({ stats }: Models.IScrollParams) =>\n      scrollState.updateScroll(stats.scrolled, stats.totalToScroll)\n    ),\n    filter(\n      ({ fire, scrollDown, stats: { totalToScroll } }: Models.IScrollParams) =>\n        shouldTriggerEvents(\n          config.alwaysCallback,\n          fire,\n          scrollState.isTriggeredScroll(totalToScroll, scrollDown)\n        )\n    ),\n    tap(({ scrollDown, stats: { totalToScroll } }: Models.IScrollParams) => {\n      scrollState.updateTriggeredFlag(totalToScroll, scrollDown);\n    }),\n    map(toInfiniteScrollAction)\n  );\n}\n\nexport function attachScrollEvent(\n  options: Models.IScrollRegisterConfig\n): Observable<{}> {\n  let obs = fromEvent(options.container, 'scroll');\n  // For an unknown reason calling `sampleTime()` causes trouble for many users, even with `options.throttle = 0`.\n  // Let's avoid calling the function unless needed.\n  // See https://github.com/orizens/ngx-infinite-scroll/issues/198\n  if (options.throttle) {\n    obs = obs.pipe(sampleTime(options.throttle));\n  }\n  return obs;\n}\n\nexport function toInfiniteScrollParams(\n  lastScrollPosition: number,\n  stats: Models.IPositionStats,\n  distance: Models.IScrollerDistance\n): Models.IScrollParams {\n  const { scrollDown, fire } = ScrollResolver.getScrollStats(\n    lastScrollPosition,\n    stats,\n    distance\n  );\n  return {\n    scrollDown,\n    fire,\n    stats\n  };\n}\n\nexport const InfiniteScrollActions = {\n  DOWN: '[NGX_ISE] DOWN',\n  UP: '[NGX_ISE] UP'\n};\n\nexport function toInfiniteScrollAction(\n  response: Models.IScrollParams\n): Models.IInfiniteScrollAction {\n  const {\n    scrollDown,\n    stats: { scrolled: currentScrollPosition }\n  } = response;\n  return {\n    type: scrollDown ? InfiniteScrollActions.DOWN : InfiniteScrollActions.UP,\n    payload: {\n      currentScrollPosition\n    }\n  };\n}\n","import { IScrollState, IScrollerDistance } from '../models';\n\nexport class ScrollState implements IScrollState {\n  lastScrollPosition = 0;\n  lastTotalToScroll = 0;\n  totalToScroll = 0;\n  triggered: IScrollerDistance = {\n    down: 0,\n    up: 0\n  };\n\n  constructor({ totalToScroll }) {\n    this.totalToScroll = totalToScroll;\n  }\n\n  updateScrollPosition(position: number) {\n    return (this.lastScrollPosition = position);\n  }\n\n  updateTotalToScroll(totalToScroll: number) {\n    if (this.lastTotalToScroll !== totalToScroll) {\n      this.lastTotalToScroll = this.totalToScroll;\n      this.totalToScroll = totalToScroll;\n    }\n  }\n\n  updateScroll(scrolledUntilNow: number, totalToScroll: number) {\n    this.updateScrollPosition(scrolledUntilNow);\n    this.updateTotalToScroll(totalToScroll);\n  }\n\n  updateTriggeredFlag(scroll, isScrollingDown: boolean) {\n    if (isScrollingDown) {\n      this.triggered.down = scroll;\n    } else {\n      this.triggered.up = scroll;\n    }\n  }\n\n  isTriggeredScroll(totalToScroll, isScrollingDown: boolean) {\n    return isScrollingDown\n      ? this.triggered.down === totalToScroll\n      : this.triggered.up === totalToScroll;\n  }\n}\n","import { IPositionStats, IScrollState, IScrollerDistance } from '../models';\n\nexport function shouldFireScrollEvent(\n  container: IPositionStats,\n  distance: IScrollerDistance,\n  scrollingDown: boolean\n) {\n  let remaining: number;\n  let containerBreakpoint: number;\n  if (container.totalToScroll <= 0) {\n    return false;\n  }\n\n  const scrolledUntilNow = container.isWindow ? container.scrolled : container.height + container.scrolled;\n  if (scrollingDown) {\n    remaining =\n      (container.totalToScroll - scrolledUntilNow) / container.totalToScroll;\n    containerBreakpoint = distance.down / 10;\n  } else {\n    const totalHiddenContentHeight =\n      container.scrolled + (container.totalToScroll - scrolledUntilNow);\n    remaining = container.scrolled / totalHiddenContentHeight;\n    containerBreakpoint = distance.up / 10;\n  }\n\n  const shouldFireEvent: boolean = remaining <= containerBreakpoint;\n  return shouldFireEvent;\n}\n\nexport function isScrollingDownwards(\n  lastScrollPosition: number,\n  container: IPositionStats\n) {\n  return lastScrollPosition < container.scrolled;\n}\n\nexport function getScrollStats(\n  lastScrollPosition: number,\n  container: IPositionStats,\n  distance: IScrollerDistance\n) {\n  const scrollDown = isScrollingDownwards(lastScrollPosition, container);\n  return {\n    fire: shouldFireScrollEvent(container, distance, scrollDown),\n    scrollDown\n  };\n}\n\nexport function updateScrollPosition(\n  position: number,\n  scrollState: IScrollState\n) {\n  return (scrollState.lastScrollPosition = position);\n}\n\nexport function updateTotalToScroll(\n  totalToScroll: number,\n  scrollState: IScrollState\n) {\n  if (scrollState.lastTotalToScroll !== totalToScroll) {\n    scrollState.lastTotalToScroll = scrollState.totalToScroll;\n    scrollState.totalToScroll = totalToScroll;\n  }\n}\n\nexport function isSameTotalToScroll(scrollState: IScrollState) {\n  return scrollState.totalToScroll === scrollState.lastTotalToScroll;\n}\n\nexport function updateTriggeredFlag(\n  scroll,\n  scrollState: IScrollState,\n  triggered: boolean,\n  isScrollingDown: boolean\n) {\n  if (isScrollingDown) {\n    scrollState.triggered.down = scroll;\n  } else {\n    scrollState.triggered.up = scroll;\n  }\n}\n\nexport function isTriggeredScroll(\n  totalToScroll,\n  scrollState: IScrollState,\n  isScrollingDown: boolean\n) {\n  return isScrollingDown\n    ? scrollState.triggered.down === totalToScroll\n    : scrollState.triggered.up === totalToScroll;\n}\n\nexport function updateScrollState(\n  scrollState: IScrollState,\n  scrolledUntilNow: number,\n  totalToScroll: number\n) {\n  updateScrollPosition(scrolledUntilNow, scrollState);\n  updateTotalToScroll(totalToScroll, scrollState);\n  // const isSameTotal = isSameTotalToScroll(scrollState);\n  // if (!isSameTotal) {\n  //   updateTriggeredFlag(scrollState, false, isScrollingDown);\n  // }\n}\n","import { ElementRef } from '@angular/core';\n\nimport { ContainerRef, IPositionElements, IPositionStats, IResolver } from '../models';\nimport { AxisResolver } from './axis-resolver';\n\nexport function createResolver({\n  windowElement,\n  axis\n}: IPositionElements): IResolver {\n  return createResolverWithContainer(\n    { axis, isWindow: isElementWindow(windowElement) },\n    windowElement\n  );\n}\n\nexport function createResolverWithContainer(\n  resolver,\n  windowElement: ContainerRef\n) {\n  const container =\n    resolver.isWindow || (windowElement && !windowElement.nativeElement)\n      ? windowElement\n      : windowElement.nativeElement;\n  return { ...resolver, container };\n}\n\nexport function isElementWindow(windowElement: ContainerRef): boolean {\n  const isWindow = ['Window', 'global'].some((obj: string) =>\n    Object.prototype.toString.call(windowElement).includes(obj)\n  );\n  return isWindow;\n}\n\nexport function getDocumentElement(isContainerWindow: boolean, windowElement) {\n  return isContainerWindow ? windowElement.document.documentElement : null;\n}\n\nexport function calculatePoints(element: ElementRef, resolver: IResolver) {\n  const height = extractHeightForElement(resolver);\n  return resolver.isWindow\n    ? calculatePointsForWindow(height, element, resolver)\n    : calculatePointsForElement(height, element, resolver);\n}\n\nexport function calculatePointsForWindow(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container, isWindow } = resolver;\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  // scrolled until now / current y point\n  const scrolled =\n    height +\n    getElementPageYOffset(\n      getDocumentElement(isWindow, container),\n      axis,\n      isWindow\n    );\n  // total height / most bottom y point\n  const nativeElementHeight = getElementHeight(\n    element.nativeElement,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n  const totalToScroll =\n    getElementOffsetTop(element.nativeElement, axis, isWindow) +\n    nativeElementHeight;\n  return { height, scrolled, totalToScroll, isWindow };\n}\n\nexport function calculatePointsForElement(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container } = resolver;\n  // perhaps use container.offsetTop instead of 'scrollTop'\n  const scrolled = container[axis.scrollTopKey()];\n  const totalToScroll = container[axis.scrollHeightKey()];\n  return { height, scrolled, totalToScroll, isWindow: false };\n}\n\nexport function extractHeightPropKeys(axis: AxisResolver) {\n  return {\n    offsetHeightKey: axis.offsetHeightKey(),\n    clientHeightKey: axis.clientHeightKey()\n  };\n}\n\nexport function extractHeightForElement({\n  container,\n  isWindow,\n  axis\n}: IResolver) {\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  return getElementHeight(\n    container,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n}\nexport function getElementHeight(\n  elem: any,\n  isWindow: boolean,\n  offsetHeightKey: string,\n  clientHeightKey: string\n) {\n  if (isNaN(elem[offsetHeightKey])) {\n    const docElem = getDocumentElement(isWindow, elem);\n    return docElem ? docElem[clientHeightKey] : 0;\n  } else {\n    return elem[offsetHeightKey];\n  }\n}\n\nexport function getElementOffsetTop(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const topKey = axis.topKey();\n  // elem = elem.nativeElement;\n  if (!elem.getBoundingClientRect) {\n    // || elem.css('none')) {\n    return;\n  }\n  return (\n    elem.getBoundingClientRect()[topKey] +\n    getElementPageYOffset(elem, axis, isWindow)\n  );\n}\n\nexport function getElementPageYOffset(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const pageYOffset = axis.pageYOffsetKey();\n  const scrollTop = axis.scrollTopKey();\n  const offsetTop = axis.offsetTopKey();\n\n  if (isNaN(window.pageYOffset)) {\n    return getDocumentElement(isWindow, elem)[scrollTop];\n  } else if (elem.ownerDocument) {\n    return elem.ownerDocument.defaultView[pageYOffset];\n  } else {\n    return elem[offsetTop];\n  }\n}\n","import { IInfiniteScrollEvent, IPositionStats } from '../models';\n\nexport interface IScrollerProps extends IDistanceRange {\n  container: IPositionStats;\n  alwaysCallback: boolean;\n  disabled: boolean;\n}\n\nexport interface ITriggerEvents {\n  down: (event: any) => any;\n  up: (event: any) => any;\n}\n\nexport interface IDistanceRange {\n  down: number;\n  up: number;\n}\n\nexport interface IScrollConfig {\n  alwaysCallback: boolean;\n  shouldFireScrollEvent: boolean;\n}\n\nexport function shouldTriggerEvents(\n  alwaysCallback: boolean,\n  shouldFireScrollEvent: boolean,\n  isTriggeredCurrentTotal: boolean\n) {\n  if (alwaysCallback && shouldFireScrollEvent) {\n    return true;\n  }\n  if (!isTriggeredCurrentTotal && shouldFireScrollEvent) {\n    return true;\n  }\n  return false;\n}\n","const VerticalProps = {\n  clientHeight: \"clientHeight\",\n  offsetHeight: \"offsetHeight\",\n  scrollHeight: \"scrollHeight\",\n  pageYOffset: \"pageYOffset\",\n  offsetTop: \"offsetTop\",\n  scrollTop: \"scrollTop\",\n  top: \"top\"\n};\n\nconst HorizontalProps = {\n  clientHeight: \"clientWidth\",\n  offsetHeight: \"offsetWidth\",\n  scrollHeight: \"scrollWidth\",\n  pageYOffset: \"pageXOffset\",\n  offsetTop: \"offsetLeft\",\n  scrollTop: \"scrollLeft\",\n  top: \"left\"\n};\n\nexport class AxisResolver {\n  private propsMap: any;\n\n  constructor(private vertical: boolean = true) {\n    this.propsMap = vertical ? VerticalProps : HorizontalProps;\n  }\n  clientHeightKey() {\n    return this.propsMap.clientHeight;\n  }\n  offsetHeightKey() {\n    return this.propsMap.offsetHeight;\n  }\n  scrollHeightKey() {\n    return this.propsMap.scrollHeight;\n  }\n  pageYOffsetKey() {\n    return this.propsMap.pageYOffset;\n  }\n  offsetTopKey() {\n    return this.propsMap.offsetTop;\n  }\n  scrollTopKey() {\n    return this.propsMap.scrollTop;\n  }\n  topKey() {\n    return this.propsMap.top;\n  }\n}\n","import { ElementRef, SimpleChange } from '@angular/core';\n\nexport function resolveContainerElement(\n  selector: string | any,\n  scrollWindow,\n  defaultElement,\n  fromRoot: boolean\n): any {\n  const hasWindow = window && !!window.document && window.document.documentElement;\n  let container = hasWindow && scrollWindow ? window : defaultElement;\n  if (selector) {\n    const containerIsString =\n      selector && hasWindow && typeof selector === 'string';\n    container = containerIsString\n      ? 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modules/ngx-infinite-scroll.js

@@ -7,3 +7,3 @@ import { Directive, ElementRef, EventEmitter, Input, NgModule, NgZone, Output } from '@angular/core';
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -61,3 +61,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -138,3 +138,3 @@ /** @type {?} */
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -175,3 +175,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -195,3 +195,3 @@ /**
         : windowElement.nativeElement;
-    return Object.assign({}, resolver, { container });
+    return Object.assign(Object.assign({}, resolver), { container });
 }
@@ -204,3 +204,7 @@ /**
     /** @type {?} */
-    const isWindow = ['Window', 'global'].some((obj) => Object.prototype.toString.call(windowElement).includes(obj));
+    const isWindow = ['Window', 'global'].some((/**
+     * @param {?} obj
+     * @return {?}
+     */
+    (obj) => Object.prototype.toString.call(windowElement).includes(obj)));
     return isWindow;
@@ -329,3 +333,3 @@ }
     const offsetTop = axis.offsetTopKey();
-    if (isNaN(window[pageYOffset])) {
+    if (isNaN(window.pageYOffset)) {
         return getDocumentElement(isWindow, elem)[scrollTop];
@@ -343,3 +347,3 @@ }
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -440,3 +444,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -510,3 +514,3 @@ class ScrollState {
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -538,5 +542,24 @@ /**
     };
-    return attachScrollEvent(options).pipe(mergeMap(() => of(calculatePoints(element, resolver))), map((positionStats) => toInfiniteScrollParams(scrollState.lastScrollPosition, positionStats, distance)), tap(({ stats }) => scrollState.updateScroll(stats.scrolled, stats.totalToScroll)), filter(({ fire, scrollDown, stats: { totalToScroll } }) => shouldTriggerEvents(config.alwaysCallback, fire, scrollState.isTriggeredScroll(totalToScroll, scrollDown))), tap(({ scrollDown, stats: { totalToScroll } }) => {
+    return attachScrollEvent(options).pipe(mergeMap((/**
+     * @return {?}
+     */
+    () => of(calculatePoints(element, resolver)))), map((/**
+     * @param {?} positionStats
+     * @return {?}
+     */
+    (positionStats) => toInfiniteScrollParams(scrollState.lastScrollPosition, positionStats, distance))), tap((/**
+     * @param {?} __0
+     * @return {?}
+     */
+    ({ stats }) => scrollState.updateScroll(stats.scrolled, stats.totalToScroll))), filter((/**
+     * @param {?} __0
+     * @return {?}
+     */
+    ({ fire, scrollDown, stats: { totalToScroll } }) => shouldTriggerEvents(config.alwaysCallback, fire, scrollState.isTriggeredScroll(totalToScroll, scrollDown)))), tap((/**
+     * @param {?} __0
+     * @return {?}
+     */
+    ({ scrollDown, stats: { totalToScroll } }) => {
         scrollState.updateTriggeredFlag(totalToScroll, scrollDown);
-    }), map(toInfiniteScrollAction));
+    })), map(toInfiniteScrollAction));
 }
@@ -593,3 +616,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -651,3 +674,6 @@ class InfiniteScrollDirective {
         if (hasWindowDefined()) {
-            this.zone.runOutsideAngular(() => {
+            this.zone.runOutsideAngular((/**
+             * @return {?}
+             */
+            () => {
                 this.disposeScroller = createScroller({
@@ -664,4 +690,11 @@ fromRoot: this.fromRoot,
                     upDistance: this.infiniteScrollUpDistance
-                }).subscribe((payload) => this.zone.run(() => this.handleOnScroll(payload)));
-            });
+                }).subscribe((/**
+                 * @param {?} payload
+                 * @return {?}
+                 */
+                (payload) => this.zone.run((/**
+                 * @return {?}
+                 */
+                () => this.handleOnScroll(payload)))));
+            }));
         }
@@ -725,3 +758,3 @@ }
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -741,3 +774,3 @@ class InfiniteScrollModule {
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -747,3 +780,3 @@
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -763,3 +796,3 @@ /**
  * @fileoverview added by tsickle
- * @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
+ * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
@@ -766,0 +799,0 @@ /**

modules/ngx-infinite-scroll.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"ngx-infinite-scroll.js","sources":["../../ngx-infinite-scroll.ts","../../public_api.ts","../../src/ngx-infinite-scroll.ts","../../src/modules/ngx-infinite-scroll.module.ts","../../src/modules/infinite-scroll.directive.ts","../../src/services/scroll-register.ts","../../src/services/scroll-state.ts","../../src/services/scroll-resolver.ts","../../src/services/position-resolver.ts","../../src/services/event-trigger.ts","../../src/services/axis-resolver.ts","../../src/services/ngx-ins-utils.ts"],"sourcesContent":["export * from './public_api';\n","/**\n * Angular library starter.\n * Build an Angular library compatible with AoT compilation & Tree shaking.\n * Written by Roberto Simonetti.\n * MIT license.\n * https://github.com/robisim74/angular-library-starter\n */\n\n/**\n * Entry point for all public APIs of the package.\n */\nexport * from './src/ngx-infinite-scroll';\n\n","// Public classes.\nexport {\n  ContainerRef,\n  IInfiniteScrollEvent,\n  IPositionElements,\n  IPositionStats,\n  IResolver\n} from './models';\n\nexport { InfiniteScrollDirective } from './modules/infinite-scroll.directive';\nexport { InfiniteScrollModule } from './modules/ngx-infinite-scroll.module';\n","import { NgModule } from '@angular/core';\n\nimport { InfiniteScrollDirective } from './infinite-scroll.directive';\n\n@NgModule({\n  declarations: [InfiniteScrollDirective],\n  exports: [InfiniteScrollDirective],\n  imports: [],\n  providers: []\n})\nexport class InfiniteScrollModule { }\n","import {\n  AfterViewInit,\n  Directive,\n  ElementRef,\n  EventEmitter,\n  Input,\n  NgZone,\n  OnChanges,\n  OnDestroy,\n  Output,\n  SimpleChanges\n} from '@angular/core';\nimport {Subscription} from 'rxjs';\n\nimport { IInfiniteScrollEvent, IInfiniteScrollAction } from '../models';\nimport { hasWindowDefined, inputPropChanged } from '../services/ngx-ins-utils';\nimport { createScroller, InfiniteScrollActions } from '../services/scroll-register';\n\n@Directive({\n  selector: '[infiniteScroll], [infinite-scroll], [data-infinite-scroll]'\n})\nexport class InfiniteScrollDirective\n  implements OnDestroy, OnChanges, AfterViewInit {\n  @Output() scrolled = new EventEmitter<IInfiniteScrollEvent>();\n  @Output() scrolledUp = new EventEmitter<IInfiniteScrollEvent>();\n\n  @Input() infiniteScrollDistance: number = 2;\n  @Input() infiniteScrollUpDistance: number = 1.5;\n  @Input() infiniteScrollThrottle: number = 150;\n  @Input() infiniteScrollDisabled: boolean = false;\n  @Input() infiniteScrollContainer: any = null;\n  @Input() scrollWindow: boolean = true;\n  @Input() immediateCheck: boolean = false;\n  @Input() horizontal: boolean = false;\n  @Input() alwaysCallback: boolean = false;\n  @Input() fromRoot: boolean = false;\n\n  private disposeScroller: Subscription;\n\n  constructor(private element: ElementRef, private zone: NgZone) { }\n\n  ngAfterViewInit() {\n    if (!this.infiniteScrollDisabled) {\n      this.setup();\n    }\n  }\n\n  ngOnChanges({ infiniteScrollContainer, infiniteScrollDisabled, infiniteScrollDistance }: SimpleChanges) {\n    const containerChanged = inputPropChanged(infiniteScrollContainer);\n    const disabledChanged = inputPropChanged(infiniteScrollDisabled);\n    const distanceChanged = inputPropChanged(infiniteScrollDistance);\n    const shouldSetup = (!disabledChanged && !this.infiniteScrollDisabled) ||\n      (disabledChanged && !infiniteScrollDisabled.currentValue) || distanceChanged;\n\n    if (containerChanged || disabledChanged || distanceChanged) {\n      this.destroyScroller();\n      if (shouldSetup) {\n        this.setup();\n      }\n    }\n  }\n\n  setup() {\n    if (hasWindowDefined()) {\n      this.zone.runOutsideAngular(() => {\n        this.disposeScroller = createScroller({\n          fromRoot: this.fromRoot,\n          alwaysCallback: this.alwaysCallback,\n          disable: this.infiniteScrollDisabled,\n          downDistance: this.infiniteScrollDistance,\n          element: this.element,\n          horizontal: this.horizontal,\n          scrollContainer: this.infiniteScrollContainer,\n          scrollWindow: this.scrollWindow,\n          throttle: this.infiniteScrollThrottle,\n          upDistance: this.infiniteScrollUpDistance\n        }).subscribe((payload: any) => this.zone.run(() => this.handleOnScroll(payload)));\n      });\n    }\n  }\n\n  handleOnScroll({ type, payload }: IInfiniteScrollAction) {\n    switch (type) {\n      case InfiniteScrollActions.DOWN:\n        return this.scrolled.emit(payload);\n\n      case InfiniteScrollActions.UP:\n        return this.scrolledUp.emit(payload);\n\n      default:\n        return;\n    }\n  }\n\n  ngOnDestroy() {\n    this.destroyScroller();\n  }\n\n  destroyScroller() {\n    if (this.disposeScroller) {\n      this.disposeScroller.unsubscribe();\n    }\n  }\n}\n","import { Observable, of, fromEvent } from 'rxjs';\nimport { map, mergeMap, tap, sampleTime, filter } from 'rxjs/operators';\n\nimport * as Models from '../models';\nimport { AxisResolver } from './axis-resolver';\nimport { shouldTriggerEvents } from './event-trigger';\nimport { resolveContainerElement } from './ngx-ins-utils';\nimport { calculatePoints, createResolver } from './position-resolver';\nimport * as ScrollResolver from './scroll-resolver';\nimport { ScrollState } from './scroll-state';\n\nexport function createScroller(config: Models.IScroller) {\n  const { scrollContainer, scrollWindow, element, fromRoot } = config;\n  const resolver = createResolver({\n    axis: new AxisResolver(!config.horizontal),\n    windowElement: resolveContainerElement(\n      scrollContainer,\n      scrollWindow,\n      element,\n      fromRoot\n    )\n  });\n  const scrollState = new ScrollState({\n    totalToScroll: calculatePoints(element, resolver)\n  });\n  const options: Models.IScrollRegisterConfig = {\n    container: resolver.container,\n    throttle: config.throttle\n  };\n  const distance = {\n    up: config.upDistance,\n    down: config.downDistance\n  };\n  return attachScrollEvent(options).pipe(\n    mergeMap(() => of(calculatePoints(element, resolver))),\n    map((positionStats: Models.IPositionStats) =>\n      toInfiniteScrollParams(\n        scrollState.lastScrollPosition,\n        positionStats,\n        distance\n      )\n    ),\n    tap(({ stats }: Models.IScrollParams) =>\n      scrollState.updateScroll(stats.scrolled, stats.totalToScroll)\n    ),\n    filter(\n      ({ fire, scrollDown, stats: { totalToScroll } }: Models.IScrollParams) =>\n        shouldTriggerEvents(\n          config.alwaysCallback,\n          fire,\n          scrollState.isTriggeredScroll(totalToScroll, scrollDown)\n        )\n    ),\n    tap(({ scrollDown, stats: { totalToScroll } }: Models.IScrollParams) => {\n      scrollState.updateTriggeredFlag(totalToScroll, scrollDown);\n    }),\n    map(toInfiniteScrollAction)\n  );\n}\n\nexport function attachScrollEvent(\n  options: Models.IScrollRegisterConfig\n): Observable<{}> {\n  let obs = fromEvent(options.container, 'scroll');\n  // For an unknown reason calling `sampleTime()` causes trouble for many users, even with `options.throttle = 0`.\n  // Let's avoid calling the function unless needed.\n  // See https://github.com/orizens/ngx-infinite-scroll/issues/198\n  if (options.throttle) {\n    obs = obs.pipe(sampleTime(options.throttle));\n  }\n  return obs;\n}\n\nexport function toInfiniteScrollParams(\n  lastScrollPosition: number,\n  stats: Models.IPositionStats,\n  distance: Models.IScrollerDistance\n): Models.IScrollParams {\n  const { scrollDown, fire } = ScrollResolver.getScrollStats(\n    lastScrollPosition,\n    stats,\n    distance\n  );\n  return {\n    scrollDown,\n    fire,\n    stats\n  };\n}\n\nexport const InfiniteScrollActions = {\n  DOWN: '[NGX_ISE] DOWN',\n  UP: '[NGX_ISE] UP'\n};\n\nexport function toInfiniteScrollAction(\n  response: Models.IScrollParams\n): Models.IInfiniteScrollAction {\n  const {\n    scrollDown,\n    stats: { scrolled: currentScrollPosition }\n  } = response;\n  return {\n    type: scrollDown ? InfiniteScrollActions.DOWN : InfiniteScrollActions.UP,\n    payload: {\n      currentScrollPosition\n    }\n  };\n}\n","import { IScrollState, IScrollerDistance } from '../models';\n\nexport class ScrollState implements IScrollState {\n  lastScrollPosition = 0;\n  lastTotalToScroll = 0;\n  totalToScroll = 0;\n  triggered: IScrollerDistance = {\n    down: 0,\n    up: 0\n  };\n\n  constructor({ totalToScroll }) {\n    this.totalToScroll = totalToScroll;\n  }\n\n  updateScrollPosition(position: number) {\n    return (this.lastScrollPosition = position);\n  }\n\n  updateTotalToScroll(totalToScroll: number) {\n    if (this.lastTotalToScroll !== totalToScroll) {\n      this.lastTotalToScroll = this.totalToScroll;\n      this.totalToScroll = totalToScroll;\n    }\n  }\n\n  updateScroll(scrolledUntilNow: number, totalToScroll: number) {\n    this.updateScrollPosition(scrolledUntilNow);\n    this.updateTotalToScroll(totalToScroll);\n  }\n\n  updateTriggeredFlag(scroll, isScrollingDown: boolean) {\n    if (isScrollingDown) {\n      this.triggered.down = scroll;\n    } else {\n      this.triggered.up = scroll;\n    }\n  }\n\n  isTriggeredScroll(totalToScroll, isScrollingDown: boolean) {\n    return isScrollingDown\n      ? this.triggered.down === totalToScroll\n      : this.triggered.up === totalToScroll;\n  }\n}\n","import { IPositionStats, IScrollState, IScrollerDistance } from '../models';\n\nexport function shouldFireScrollEvent(\n  container: IPositionStats,\n  distance: IScrollerDistance,\n  scrollingDown: boolean\n) {\n  let remaining: number;\n  let containerBreakpoint: number;\n  if (container.totalToScroll <= 0) {\n    return false;\n  }\n\n  const scrolledUntilNow = container.isWindow ? container.scrolled : container.height + container.scrolled;\n  if (scrollingDown) {\n    remaining =\n      (container.totalToScroll - scrolledUntilNow) / container.totalToScroll;\n    containerBreakpoint = distance.down / 10;\n  } else {\n    const totalHiddenContentHeight =\n      container.scrolled + (container.totalToScroll - scrolledUntilNow);\n    remaining = container.scrolled / totalHiddenContentHeight;\n    containerBreakpoint = distance.up / 10;\n  }\n\n  const shouldFireEvent: boolean = remaining <= containerBreakpoint;\n  return shouldFireEvent;\n}\n\nexport function isScrollingDownwards(\n  lastScrollPosition: number,\n  container: IPositionStats\n) {\n  return lastScrollPosition < container.scrolled;\n}\n\nexport function getScrollStats(\n  lastScrollPosition: number,\n  container: IPositionStats,\n  distance: IScrollerDistance\n) {\n  const scrollDown = isScrollingDownwards(lastScrollPosition, container);\n  return {\n    fire: shouldFireScrollEvent(container, distance, scrollDown),\n    scrollDown\n  };\n}\n\nexport function updateScrollPosition(\n  position: number,\n  scrollState: IScrollState\n) {\n  return (scrollState.lastScrollPosition = position);\n}\n\nexport function updateTotalToScroll(\n  totalToScroll: number,\n  scrollState: IScrollState\n) {\n  if (scrollState.lastTotalToScroll !== totalToScroll) {\n    scrollState.lastTotalToScroll = scrollState.totalToScroll;\n    scrollState.totalToScroll = totalToScroll;\n  }\n}\n\nexport function isSameTotalToScroll(scrollState: IScrollState) {\n  return scrollState.totalToScroll === scrollState.lastTotalToScroll;\n}\n\nexport function updateTriggeredFlag(\n  scroll,\n  scrollState: IScrollState,\n  triggered: boolean,\n  isScrollingDown: boolean\n) {\n  if (isScrollingDown) {\n    scrollState.triggered.down = scroll;\n  } else {\n    scrollState.triggered.up = scroll;\n  }\n}\n\nexport function isTriggeredScroll(\n  totalToScroll,\n  scrollState: IScrollState,\n  isScrollingDown: boolean\n) {\n  return isScrollingDown\n    ? scrollState.triggered.down === totalToScroll\n    : scrollState.triggered.up === totalToScroll;\n}\n\nexport function updateScrollState(\n  scrollState: IScrollState,\n  scrolledUntilNow: number,\n  totalToScroll: number\n) {\n  updateScrollPosition(scrolledUntilNow, scrollState);\n  updateTotalToScroll(totalToScroll, scrollState);\n  // const isSameTotal = isSameTotalToScroll(scrollState);\n  // if (!isSameTotal) {\n  //   updateTriggeredFlag(scrollState, false, isScrollingDown);\n  // }\n}\n","import { ElementRef } from '@angular/core';\n\nimport { ContainerRef, IPositionElements, IPositionStats, IResolver } from '../models';\nimport { AxisResolver } from './axis-resolver';\n\nexport function createResolver({\n  windowElement,\n  axis\n}: IPositionElements): IResolver {\n  return createResolverWithContainer(\n    { axis, isWindow: isElementWindow(windowElement) },\n    windowElement\n  );\n}\n\nexport function createResolverWithContainer(\n  resolver,\n  windowElement: ContainerRef\n) {\n  const container =\n    resolver.isWindow || (windowElement && !windowElement.nativeElement)\n      ? windowElement\n      : windowElement.nativeElement;\n  return { ...resolver, container };\n}\n\nexport function isElementWindow(windowElement: ContainerRef): boolean {\n  const isWindow = ['Window', 'global'].some((obj: string) =>\n    Object.prototype.toString.call(windowElement).includes(obj)\n  );\n  return isWindow;\n}\n\nexport function getDocumentElement(isContainerWindow: boolean, windowElement) {\n  return isContainerWindow ? windowElement.document.documentElement : null;\n}\n\nexport function calculatePoints(element: ElementRef, resolver: IResolver) {\n  const height = extractHeightForElement(resolver);\n  return resolver.isWindow\n    ? calculatePointsForWindow(height, element, resolver)\n    : calculatePointsForElement(height, element, resolver);\n}\n\nexport function calculatePointsForWindow(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container, isWindow } = resolver;\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  // scrolled until now / current y point\n  const scrolled =\n    height +\n    getElementPageYOffset(\n      getDocumentElement(isWindow, container),\n      axis,\n      isWindow\n    );\n  // total height / most bottom y point\n  const nativeElementHeight = getElementHeight(\n    element.nativeElement,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n  const totalToScroll =\n    getElementOffsetTop(element.nativeElement, axis, isWindow) +\n    nativeElementHeight;\n  return { height, scrolled, totalToScroll, isWindow };\n}\n\nexport function calculatePointsForElement(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container } = resolver;\n  // perhaps use container.offsetTop instead of 'scrollTop'\n  const scrolled = container[axis.scrollTopKey()];\n  const totalToScroll = container[axis.scrollHeightKey()];\n  return { height, scrolled, totalToScroll, isWindow: false };\n}\n\nexport function extractHeightPropKeys(axis: AxisResolver) {\n  return {\n    offsetHeightKey: axis.offsetHeightKey(),\n    clientHeightKey: axis.clientHeightKey()\n  };\n}\n\nexport function extractHeightForElement({\n  container,\n  isWindow,\n  axis\n}: IResolver) {\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  return getElementHeight(\n    container,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n}\nexport function getElementHeight(\n  elem: any,\n  isWindow: boolean,\n  offsetHeightKey: string,\n  clientHeightKey: string\n) {\n  if (isNaN(elem[offsetHeightKey])) {\n    const docElem = getDocumentElement(isWindow, elem);\n    return docElem ? docElem[clientHeightKey] : 0;\n  } else {\n    return elem[offsetHeightKey];\n  }\n}\n\nexport function getElementOffsetTop(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const topKey = axis.topKey();\n  // elem = elem.nativeElement;\n  if (!elem.getBoundingClientRect) {\n    // || elem.css('none')) {\n    return;\n  }\n  return (\n    elem.getBoundingClientRect()[topKey] +\n    getElementPageYOffset(elem, axis, isWindow)\n  );\n}\n\nexport function getElementPageYOffset(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const pageYOffset = axis.pageYOffsetKey();\n  const scrollTop = axis.scrollTopKey();\n  const offsetTop = axis.offsetTopKey();\n\n  if (isNaN(window[pageYOffset])) {\n    return getDocumentElement(isWindow, elem)[scrollTop];\n  } else if (elem.ownerDocument) {\n    return elem.ownerDocument.defaultView[pageYOffset];\n  } else {\n    return elem[offsetTop];\n  }\n}\n","import { IInfiniteScrollEvent, IPositionStats } from '../models';\n\nexport interface IScrollerProps extends IDistanceRange {\n  container: IPositionStats;\n  alwaysCallback: boolean;\n  disabled: boolean;\n}\n\nexport interface ITriggerEvents {\n  down: (event: any) => any;\n  up: (event: any) => any;\n}\n\nexport interface IDistanceRange {\n  down: number;\n  up: number;\n}\n\nexport interface IScrollConfig {\n  alwaysCallback: boolean;\n  shouldFireScrollEvent: boolean;\n}\n\nexport function shouldTriggerEvents(\n  alwaysCallback: boolean,\n  shouldFireScrollEvent: boolean,\n  isTriggeredCurrentTotal: boolean\n) {\n  if (alwaysCallback && shouldFireScrollEvent) {\n    return true;\n  }\n  if (!isTriggeredCurrentTotal && shouldFireScrollEvent) {\n    return true;\n  }\n  return false;\n}\n","const VerticalProps = {\n  clientHeight: \"clientHeight\",\n  offsetHeight: \"offsetHeight\",\n  scrollHeight: \"scrollHeight\",\n  pageYOffset: \"pageYOffset\",\n  offsetTop: \"offsetTop\",\n  scrollTop: \"scrollTop\",\n  top: \"top\"\n};\n\nconst HorizontalProps = {\n  clientHeight: \"clientWidth\",\n  offsetHeight: \"offsetWidth\",\n  scrollHeight: \"scrollWidth\",\n  pageYOffset: \"pageXOffset\",\n  offsetTop: \"offsetLeft\",\n  scrollTop: \"scrollLeft\",\n  top: \"left\"\n};\n\nexport class AxisResolver {\n  private propsMap: any;\n\n  constructor(private vertical: boolean = true) {\n    this.propsMap = vertical ? VerticalProps : HorizontalProps;\n  }\n  clientHeightKey() {\n    return this.propsMap.clientHeight;\n  }\n  offsetHeightKey() {\n    return this.propsMap.offsetHeight;\n  }\n  scrollHeightKey() {\n    return this.propsMap.scrollHeight;\n  }\n  pageYOffsetKey() {\n    return this.propsMap.pageYOffset;\n  }\n  offsetTopKey() {\n    return this.propsMap.offsetTop;\n  }\n  scrollTopKey() {\n    return this.propsMap.scrollTop;\n  }\n  topKey() {\n    return this.propsMap.top;\n  }\n}\n","import { ElementRef, SimpleChange } from '@angular/core';\n\nexport function resolveContainerElement(\n  selector: string | any,\n  scrollWindow,\n  defaultElement,\n  fromRoot: boolean\n): any {\n  const hasWindow = window && !!window.document && window.document.documentElement;\n  let container = hasWindow && scrollWindow ? window : defaultElement;\n  if (selector) {\n    const containerIsString =\n      selector && hasWindow && typeof selector === 'string';\n    container = containerIsString\n      ? findElement(selector, defaultElement.nativeElement, fromRoot)\n      : selector;\n    if (!container) {\n      throw new Error('ngx-infinite-scroll {resolveContainerElement()}: selector for');\n    }\n  }\n  return container;\n}\n\nexport function findElement(\n  selector: string | any,\n  customRoot: ElementRef | any,\n  fromRoot: boolean\n) {\n  const rootEl = fromRoot ? window.document : customRoot;\n  return rootEl.querySelector(selector);\n}\n\nexport function inputPropChanged(prop: SimpleChange): boolean {\n  return prop && !prop.firstChange;\n}\n\nexport function hasWindowDefined(): boolean {\n  return typeof window !== 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+{"version":3,"file":"ngx-infinite-scroll.js","sources":["../../ngx-infinite-scroll.ts","../../public-api.ts","../../src/ngx-infinite-scroll.ts","../../src/modules/ngx-infinite-scroll.module.ts","../../src/modules/infinite-scroll.directive.ts","../../src/services/scroll-register.ts","../../src/services/scroll-state.ts","../../src/services/scroll-resolver.ts","../../src/services/position-resolver.ts","../../src/services/event-trigger.ts","../../src/services/axis-resolver.ts","../../src/services/ngx-ins-utils.ts"],"sourcesContent":["export * from './public-api';\n","/**\n * Angular library starter.\n * Build an Angular library compatible with AoT compilation & Tree shaking.\n * Written by Roberto Simonetti.\n * MIT license.\n * https://github.com/robisim74/angular-library-starter\n */\n\n/**\n * Entry point for all public APIs of the package.\n */\nexport * from './src/ngx-infinite-scroll';\n\n","// Public classes.\nexport {\n  ContainerRef,\n  IInfiniteScrollEvent,\n  IPositionElements,\n  IPositionStats,\n  IResolver\n} from './models';\n\nexport { InfiniteScrollDirective } from './modules/infinite-scroll.directive';\nexport { InfiniteScrollModule } from './modules/ngx-infinite-scroll.module';\n","import { NgModule } from '@angular/core';\n\nimport { InfiniteScrollDirective } from './infinite-scroll.directive';\n\n@NgModule({\n  declarations: [InfiniteScrollDirective],\n  exports: [InfiniteScrollDirective],\n  imports: [],\n  providers: []\n})\nexport class InfiniteScrollModule { }\n","import {\n  AfterViewInit,\n  Directive,\n  ElementRef,\n  EventEmitter,\n  Input,\n  NgZone,\n  OnChanges,\n  OnDestroy,\n  Output,\n  SimpleChanges\n} from '@angular/core';\nimport {Subscription} from 'rxjs';\n\nimport { IInfiniteScrollEvent, IInfiniteScrollAction } from '../models';\nimport { hasWindowDefined, inputPropChanged } from '../services/ngx-ins-utils';\nimport { createScroller, InfiniteScrollActions } from '../services/scroll-register';\n\n@Directive({\n  selector: '[infiniteScroll], [infinite-scroll], [data-infinite-scroll]'\n})\nexport class InfiniteScrollDirective\n  implements OnDestroy, OnChanges, AfterViewInit {\n  @Output() scrolled = new EventEmitter<IInfiniteScrollEvent>();\n  @Output() scrolledUp = new EventEmitter<IInfiniteScrollEvent>();\n\n  @Input() infiniteScrollDistance: number = 2;\n  @Input() infiniteScrollUpDistance: number = 1.5;\n  @Input() infiniteScrollThrottle: number = 150;\n  @Input() infiniteScrollDisabled: boolean = false;\n  @Input() infiniteScrollContainer: any = null;\n  @Input() scrollWindow: boolean = true;\n  @Input() immediateCheck: boolean = false;\n  @Input() horizontal: boolean = false;\n  @Input() alwaysCallback: boolean = false;\n  @Input() fromRoot: boolean = false;\n\n  private disposeScroller: Subscription;\n\n  constructor(private element: ElementRef, private zone: NgZone) { }\n\n  ngAfterViewInit() {\n    if (!this.infiniteScrollDisabled) {\n      this.setup();\n    }\n  }\n\n  ngOnChanges({ infiniteScrollContainer, infiniteScrollDisabled, infiniteScrollDistance }: SimpleChanges) {\n    const containerChanged = inputPropChanged(infiniteScrollContainer);\n    const disabledChanged = inputPropChanged(infiniteScrollDisabled);\n    const distanceChanged = inputPropChanged(infiniteScrollDistance);\n    const shouldSetup = (!disabledChanged && !this.infiniteScrollDisabled) ||\n      (disabledChanged && !infiniteScrollDisabled.currentValue) || distanceChanged;\n\n    if (containerChanged || disabledChanged || distanceChanged) {\n      this.destroyScroller();\n      if (shouldSetup) {\n        this.setup();\n      }\n    }\n  }\n\n  setup() {\n    if (hasWindowDefined()) {\n      this.zone.runOutsideAngular(() => {\n        this.disposeScroller = createScroller({\n          fromRoot: this.fromRoot,\n          alwaysCallback: this.alwaysCallback,\n          disable: this.infiniteScrollDisabled,\n          downDistance: this.infiniteScrollDistance,\n          element: this.element,\n          horizontal: this.horizontal,\n          scrollContainer: this.infiniteScrollContainer,\n          scrollWindow: this.scrollWindow,\n          throttle: this.infiniteScrollThrottle,\n          upDistance: this.infiniteScrollUpDistance\n        }).subscribe((payload: any) => this.zone.run(() => this.handleOnScroll(payload)));\n      });\n    }\n  }\n\n  handleOnScroll({ type, payload }: IInfiniteScrollAction) {\n    switch (type) {\n      case InfiniteScrollActions.DOWN:\n        return this.scrolled.emit(payload);\n\n      case InfiniteScrollActions.UP:\n        return this.scrolledUp.emit(payload);\n\n      default:\n        return;\n    }\n  }\n\n  ngOnDestroy() {\n    this.destroyScroller();\n  }\n\n  destroyScroller() {\n    if (this.disposeScroller) {\n      this.disposeScroller.unsubscribe();\n    }\n  }\n}\n","import { Observable, of, fromEvent } from 'rxjs';\nimport { map, mergeMap, tap, sampleTime, filter } from 'rxjs/operators';\n\nimport * as Models from '../models';\nimport { AxisResolver } from './axis-resolver';\nimport { shouldTriggerEvents } from './event-trigger';\nimport { resolveContainerElement } from './ngx-ins-utils';\nimport { calculatePoints, createResolver } from './position-resolver';\nimport * as ScrollResolver from './scroll-resolver';\nimport { ScrollState } from './scroll-state';\n\nexport function createScroller(config: Models.IScroller) {\n  const { scrollContainer, scrollWindow, element, fromRoot } = config;\n  const resolver = createResolver({\n    axis: new AxisResolver(!config.horizontal),\n    windowElement: resolveContainerElement(\n      scrollContainer,\n      scrollWindow,\n      element,\n      fromRoot\n    )\n  });\n  const scrollState = new ScrollState({\n    totalToScroll: calculatePoints(element, resolver)\n  });\n  const options: Models.IScrollRegisterConfig = {\n    container: resolver.container,\n    throttle: config.throttle\n  };\n  const distance = {\n    up: config.upDistance,\n    down: config.downDistance\n  };\n  return attachScrollEvent(options).pipe(\n    mergeMap(() => of(calculatePoints(element, resolver))),\n    map((positionStats: Models.IPositionStats) =>\n      toInfiniteScrollParams(\n        scrollState.lastScrollPosition,\n        positionStats,\n        distance\n      )\n    ),\n    tap(({ stats }: Models.IScrollParams) =>\n      scrollState.updateScroll(stats.scrolled, stats.totalToScroll)\n    ),\n    filter(\n      ({ fire, scrollDown, stats: { totalToScroll } }: Models.IScrollParams) =>\n        shouldTriggerEvents(\n          config.alwaysCallback,\n          fire,\n          scrollState.isTriggeredScroll(totalToScroll, scrollDown)\n        )\n    ),\n    tap(({ scrollDown, stats: { totalToScroll } }: Models.IScrollParams) => {\n      scrollState.updateTriggeredFlag(totalToScroll, scrollDown);\n    }),\n    map(toInfiniteScrollAction)\n  );\n}\n\nexport function attachScrollEvent(\n  options: Models.IScrollRegisterConfig\n): Observable<{}> {\n  let obs = fromEvent(options.container, 'scroll');\n  // For an unknown reason calling `sampleTime()` causes trouble for many users, even with `options.throttle = 0`.\n  // Let's avoid calling the function unless needed.\n  // See https://github.com/orizens/ngx-infinite-scroll/issues/198\n  if (options.throttle) {\n    obs = obs.pipe(sampleTime(options.throttle));\n  }\n  return obs;\n}\n\nexport function toInfiniteScrollParams(\n  lastScrollPosition: number,\n  stats: Models.IPositionStats,\n  distance: Models.IScrollerDistance\n): Models.IScrollParams {\n  const { scrollDown, fire } = ScrollResolver.getScrollStats(\n    lastScrollPosition,\n    stats,\n    distance\n  );\n  return {\n    scrollDown,\n    fire,\n    stats\n  };\n}\n\nexport const InfiniteScrollActions = {\n  DOWN: '[NGX_ISE] DOWN',\n  UP: '[NGX_ISE] UP'\n};\n\nexport function toInfiniteScrollAction(\n  response: Models.IScrollParams\n): Models.IInfiniteScrollAction {\n  const {\n    scrollDown,\n    stats: { scrolled: currentScrollPosition }\n  } = response;\n  return {\n    type: scrollDown ? InfiniteScrollActions.DOWN : InfiniteScrollActions.UP,\n    payload: {\n      currentScrollPosition\n    }\n  };\n}\n","import { IScrollState, IScrollerDistance } from '../models';\n\nexport class ScrollState implements IScrollState {\n  lastScrollPosition = 0;\n  lastTotalToScroll = 0;\n  totalToScroll = 0;\n  triggered: IScrollerDistance = {\n    down: 0,\n    up: 0\n  };\n\n  constructor({ totalToScroll }) {\n    this.totalToScroll = totalToScroll;\n  }\n\n  updateScrollPosition(position: number) {\n    return (this.lastScrollPosition = position);\n  }\n\n  updateTotalToScroll(totalToScroll: number) {\n    if (this.lastTotalToScroll !== totalToScroll) {\n      this.lastTotalToScroll = this.totalToScroll;\n      this.totalToScroll = totalToScroll;\n    }\n  }\n\n  updateScroll(scrolledUntilNow: number, totalToScroll: number) {\n    this.updateScrollPosition(scrolledUntilNow);\n    this.updateTotalToScroll(totalToScroll);\n  }\n\n  updateTriggeredFlag(scroll, isScrollingDown: boolean) {\n    if (isScrollingDown) {\n      this.triggered.down = scroll;\n    } else {\n      this.triggered.up = scroll;\n    }\n  }\n\n  isTriggeredScroll(totalToScroll, isScrollingDown: boolean) {\n    return isScrollingDown\n      ? this.triggered.down === totalToScroll\n      : this.triggered.up === totalToScroll;\n  }\n}\n","import { IPositionStats, IScrollState, IScrollerDistance } from '../models';\n\nexport function shouldFireScrollEvent(\n  container: IPositionStats,\n  distance: IScrollerDistance,\n  scrollingDown: boolean\n) {\n  let remaining: number;\n  let containerBreakpoint: number;\n  if (container.totalToScroll <= 0) {\n    return false;\n  }\n\n  const scrolledUntilNow = container.isWindow ? container.scrolled : container.height + container.scrolled;\n  if (scrollingDown) {\n    remaining =\n      (container.totalToScroll - scrolledUntilNow) / container.totalToScroll;\n    containerBreakpoint = distance.down / 10;\n  } else {\n    const totalHiddenContentHeight =\n      container.scrolled + (container.totalToScroll - scrolledUntilNow);\n    remaining = container.scrolled / totalHiddenContentHeight;\n    containerBreakpoint = distance.up / 10;\n  }\n\n  const shouldFireEvent: boolean = remaining <= containerBreakpoint;\n  return shouldFireEvent;\n}\n\nexport function isScrollingDownwards(\n  lastScrollPosition: number,\n  container: IPositionStats\n) {\n  return lastScrollPosition < container.scrolled;\n}\n\nexport function getScrollStats(\n  lastScrollPosition: number,\n  container: IPositionStats,\n  distance: IScrollerDistance\n) {\n  const scrollDown = isScrollingDownwards(lastScrollPosition, container);\n  return {\n    fire: shouldFireScrollEvent(container, distance, scrollDown),\n    scrollDown\n  };\n}\n\nexport function updateScrollPosition(\n  position: number,\n  scrollState: IScrollState\n) {\n  return (scrollState.lastScrollPosition = position);\n}\n\nexport function updateTotalToScroll(\n  totalToScroll: number,\n  scrollState: IScrollState\n) {\n  if (scrollState.lastTotalToScroll !== totalToScroll) {\n    scrollState.lastTotalToScroll = scrollState.totalToScroll;\n    scrollState.totalToScroll = totalToScroll;\n  }\n}\n\nexport function isSameTotalToScroll(scrollState: IScrollState) {\n  return scrollState.totalToScroll === scrollState.lastTotalToScroll;\n}\n\nexport function updateTriggeredFlag(\n  scroll,\n  scrollState: IScrollState,\n  triggered: boolean,\n  isScrollingDown: boolean\n) {\n  if (isScrollingDown) {\n    scrollState.triggered.down = scroll;\n  } else {\n    scrollState.triggered.up = scroll;\n  }\n}\n\nexport function isTriggeredScroll(\n  totalToScroll,\n  scrollState: IScrollState,\n  isScrollingDown: boolean\n) {\n  return isScrollingDown\n    ? scrollState.triggered.down === totalToScroll\n    : scrollState.triggered.up === totalToScroll;\n}\n\nexport function updateScrollState(\n  scrollState: IScrollState,\n  scrolledUntilNow: number,\n  totalToScroll: number\n) {\n  updateScrollPosition(scrolledUntilNow, scrollState);\n  updateTotalToScroll(totalToScroll, scrollState);\n  // const isSameTotal = isSameTotalToScroll(scrollState);\n  // if (!isSameTotal) {\n  //   updateTriggeredFlag(scrollState, false, isScrollingDown);\n  // }\n}\n","import { ElementRef } from '@angular/core';\n\nimport { ContainerRef, IPositionElements, IPositionStats, IResolver } from '../models';\nimport { AxisResolver } from './axis-resolver';\n\nexport function createResolver({\n  windowElement,\n  axis\n}: IPositionElements): IResolver {\n  return createResolverWithContainer(\n    { axis, isWindow: isElementWindow(windowElement) },\n    windowElement\n  );\n}\n\nexport function createResolverWithContainer(\n  resolver,\n  windowElement: ContainerRef\n) {\n  const container =\n    resolver.isWindow || (windowElement && !windowElement.nativeElement)\n      ? windowElement\n      : windowElement.nativeElement;\n  return { ...resolver, container };\n}\n\nexport function isElementWindow(windowElement: ContainerRef): boolean {\n  const isWindow = ['Window', 'global'].some((obj: string) =>\n    Object.prototype.toString.call(windowElement).includes(obj)\n  );\n  return isWindow;\n}\n\nexport function getDocumentElement(isContainerWindow: boolean, windowElement) {\n  return isContainerWindow ? windowElement.document.documentElement : null;\n}\n\nexport function calculatePoints(element: ElementRef, resolver: IResolver) {\n  const height = extractHeightForElement(resolver);\n  return resolver.isWindow\n    ? calculatePointsForWindow(height, element, resolver)\n    : calculatePointsForElement(height, element, resolver);\n}\n\nexport function calculatePointsForWindow(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container, isWindow } = resolver;\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  // scrolled until now / current y point\n  const scrolled =\n    height +\n    getElementPageYOffset(\n      getDocumentElement(isWindow, container),\n      axis,\n      isWindow\n    );\n  // total height / most bottom y point\n  const nativeElementHeight = getElementHeight(\n    element.nativeElement,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n  const totalToScroll =\n    getElementOffsetTop(element.nativeElement, axis, isWindow) +\n    nativeElementHeight;\n  return { height, scrolled, totalToScroll, isWindow };\n}\n\nexport function calculatePointsForElement(\n  height: number,\n  element: ElementRef,\n  resolver: IResolver\n): IPositionStats {\n  const { axis, container } = resolver;\n  // perhaps use container.offsetTop instead of 'scrollTop'\n  const scrolled = container[axis.scrollTopKey()];\n  const totalToScroll = container[axis.scrollHeightKey()];\n  return { height, scrolled, totalToScroll, isWindow: false };\n}\n\nexport function extractHeightPropKeys(axis: AxisResolver) {\n  return {\n    offsetHeightKey: axis.offsetHeightKey(),\n    clientHeightKey: axis.clientHeightKey()\n  };\n}\n\nexport function extractHeightForElement({\n  container,\n  isWindow,\n  axis\n}: IResolver) {\n  const { offsetHeightKey, clientHeightKey } = extractHeightPropKeys(axis);\n  return getElementHeight(\n    container,\n    isWindow,\n    offsetHeightKey,\n    clientHeightKey\n  );\n}\nexport function getElementHeight(\n  elem: any,\n  isWindow: boolean,\n  offsetHeightKey: string,\n  clientHeightKey: string\n) {\n  if (isNaN(elem[offsetHeightKey])) {\n    const docElem = getDocumentElement(isWindow, elem);\n    return docElem ? docElem[clientHeightKey] : 0;\n  } else {\n    return elem[offsetHeightKey];\n  }\n}\n\nexport function getElementOffsetTop(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const topKey = axis.topKey();\n  // elem = elem.nativeElement;\n  if (!elem.getBoundingClientRect) {\n    // || elem.css('none')) {\n    return;\n  }\n  return (\n    elem.getBoundingClientRect()[topKey] +\n    getElementPageYOffset(elem, axis, isWindow)\n  );\n}\n\nexport function getElementPageYOffset(\n  elem: ContainerRef,\n  axis: AxisResolver,\n  isWindow: boolean\n) {\n  const pageYOffset = axis.pageYOffsetKey();\n  const scrollTop = axis.scrollTopKey();\n  const offsetTop = axis.offsetTopKey();\n\n  if (isNaN(window.pageYOffset)) {\n    return getDocumentElement(isWindow, elem)[scrollTop];\n  } else if (elem.ownerDocument) {\n    return elem.ownerDocument.defaultView[pageYOffset];\n  } else {\n    return elem[offsetTop];\n  }\n}\n","import { IInfiniteScrollEvent, IPositionStats } from '../models';\n\nexport interface IScrollerProps extends IDistanceRange {\n  container: IPositionStats;\n  alwaysCallback: boolean;\n  disabled: boolean;\n}\n\nexport interface ITriggerEvents {\n  down: (event: any) => any;\n  up: (event: any) => any;\n}\n\nexport interface IDistanceRange {\n  down: number;\n  up: number;\n}\n\nexport interface IScrollConfig {\n  alwaysCallback: boolean;\n  shouldFireScrollEvent: boolean;\n}\n\nexport function shouldTriggerEvents(\n  alwaysCallback: boolean,\n  shouldFireScrollEvent: boolean,\n  isTriggeredCurrentTotal: boolean\n) {\n  if (alwaysCallback && shouldFireScrollEvent) {\n    return true;\n  }\n  if (!isTriggeredCurrentTotal && shouldFireScrollEvent) {\n    return true;\n  }\n  return false;\n}\n","const VerticalProps = {\n  clientHeight: \"clientHeight\",\n  offsetHeight: \"offsetHeight\",\n  scrollHeight: \"scrollHeight\",\n  pageYOffset: \"pageYOffset\",\n  offsetTop: \"offsetTop\",\n  scrollTop: \"scrollTop\",\n  top: \"top\"\n};\n\nconst HorizontalProps = {\n  clientHeight: \"clientWidth\",\n  offsetHeight: \"offsetWidth\",\n  scrollHeight: \"scrollWidth\",\n  pageYOffset: \"pageXOffset\",\n  offsetTop: \"offsetLeft\",\n  scrollTop: \"scrollLeft\",\n  top: \"left\"\n};\n\nexport class AxisResolver {\n  private propsMap: any;\n\n  constructor(private vertical: boolean = true) {\n    this.propsMap = vertical ? VerticalProps : HorizontalProps;\n  }\n  clientHeightKey() {\n    return this.propsMap.clientHeight;\n  }\n  offsetHeightKey() {\n    return this.propsMap.offsetHeight;\n  }\n  scrollHeightKey() {\n    return this.propsMap.scrollHeight;\n  }\n  pageYOffsetKey() {\n    return this.propsMap.pageYOffset;\n  }\n  offsetTopKey() {\n    return this.propsMap.offsetTop;\n  }\n  scrollTopKey() {\n    return this.propsMap.scrollTop;\n  }\n  topKey() {\n    return this.propsMap.top;\n  }\n}\n","import { ElementRef, SimpleChange } from '@angular/core';\n\nexport function resolveContainerElement(\n  selector: string | any,\n  scrollWindow,\n  defaultElement,\n  fromRoot: boolean\n): any {\n  const hasWindow = window && !!window.document && window.document.documentElement;\n  let container = hasWindow && scrollWindow ? window : defaultElement;\n  if (selector) {\n    const containerIsString =\n      selector && hasWindow && typeof selector === 'string';\n    container = containerIsString\n      ? 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ngx-infinite-scroll.d.ts

 /**
  * Generated bundle index. Do not edit.
  */
-export * from './public_api';
+export * from './public-api';

package.json

 {
   "name": "ngx-infinite-scroll",
-  "version": "8.0.2",
-  "description": "An infinite scroll directive for Angular compatible with AoT compilation and Tree shaking",
+  "version": "9.0.0",
+  "description": "An infinite scroll directive for Angular",
   "main": "./bundles/ngx-infinite-scroll.umd.js",
@@ -37,15 +37,12 @@ "module": "./modules/ngx-infinite-scroll.es5.js",
   "license": "MIT",
-  "peerDependencies": {
-    "@angular/common": ">= 8.0.0",
-    "@angular/core": ">= 8.0.0"
-  },
+  "peerDependencies": {},
   "devDependencies": {
-    "@angular/animations": "^8.0.0",
-    "@angular/common": "^8.0.0",
-    "@angular/compiler": "^8.0.0",
-    "@angular/compiler-cli": "^8.0.0",
-    "@angular/core": "^8.0.0",
-    "@angular/platform-browser": "^8.0.0",
-    "@angular/platform-browser-dynamic": "^8.0.0",
-    "@angular/platform-server": "^8.0.0",
+    "@angular/animations": "^9.1.2",
+    "@angular/common": "^9.1.2",
+    "@angular/compiler": "^9.1.2",
+    "@angular/compiler-cli": "^9.1.2",
+    "@angular/core": "^9.1.2",
+    "@angular/platform-browser": "^9.1.2",
+    "@angular/platform-browser-dynamic": "^9.1.2",
+    "@angular/platform-server": "^9.1.2",
     "@compodoc/compodoc": "^1.1.2",
@@ -67,3 +64,3 @@ "@types/jasmine": "3.3.9",
     "rollup": "0.41.6",
-    "rxjs": "^6.1.0",
+    "rxjs": "^6.5.5",
     "shelljs": "0.7.7",
@@ -75,7 +72,7 @@ "sorcery": "0.10.0",
     "tslint": "5.18.0",
-    "typescript": "^3.1.1",
+    "typescript": "3.8.3",
     "uglify-js": "^2.8.15",
     "webpack": "2.3.1",
     "yargs": "7.0.2",
-    "zone.js": "0.9.1"
+    "zone.js": "0.10.3"
   },
@@ -82,0 +79,0 @@ "dependencies": {

README.md

@@ -7,11 +7,12 @@ [![Build Status](https://travis-ci.org/orizens/ngx-infinite-scroll.svg?branch=master)](https://travis-ci.org/orizens/ngx-infinite-scroll) [![Backers on Open Collective](https://opencollective.com/ngx-infinite-scroll/backers/badge.svg)](#backers) [![Sponsors on Open Collective](https://opencollective.com/ngx-infinite-scroll/sponsors/badge.svg)](#sponsors)
 
+## [Become a sponsor](https://opencollective.com/ngx-infinite-scroll#sponsor)
+
 # Angular Infinite Scroll
 
 versions now follow Angular's version to easily reflect compatibility.  
-Meaning, for **Angular 8**, use `ngx-infinite-scroll @ ^8.0.0`
+Meaning, for **Angular 9**, use `ngx-infinite-scroll @ ^9.0.0`
 
 ## Angular - Older Versions Support
 
-For **Angular 7** - `ngx-infinite-scroll@7.0.0`
-For **Angular 6** and **rxjs 6** - `ngx-infinite-scroll@6.0.0`  
+For **Angular 6 anf Above** - `ngx-infinite-scroll@THE_VERSION.0.0`  
 For **Angular 4** and **Angular = ^5.5.6** - use version `ngx-infinite-scroll@0.8.4`  
@@ -21,11 +22,27 @@ For **Angular 5.x** with **rxjs =<5.5.2** - use version `ngx-infinite-scroll@0.8.3`
 
-## Angular Consulting Services
+## Used By
 
-I'm a Senior Javascript Engineer & A Front End Consultant at [Orizens](http://orizens.com).
+- [Google](https://google.com)
+- [Apple](https://apple.com)
+- [Amazon](https://amazon.com)
+- [Microsoft](https://microsoft.com)
+- [Disney](https://disney.com)
+- [Sap](https://sap.com/)
+- [Cisco](https://cisco.com/)
+- [Yandex](https://yandex.com)
+- [Ancestry](https://www.ancestry.com/)
+
+and much more.
+
+> _These analytics are made available via the awesome [Scarf](https://www.npmjs.com/package/@scarf/scarf) package analytics library_
+
+## Front End Consulting Services
+
+I'm a Senior Front End Engineer & Consultant at [Orizens](https://orizens.com).
 My services include:
 
-- Angular Consulting
-- Front End Consulting
+- Angular/React/Javascript Consulting
+- Front End Architecture Consulting
 - Project Code Review
-- project bootstrapping and development.
+- Project Development
 
@@ -94,3 +111,3 @@ [Contact Here](http://orizens.com/contact)
   declarations: [AppComponent],
-  bootstrap: [AppComponent]
+  bootstrap: [AppComponent],
 })
@@ -117,3 +134,3 @@ export class AppModule {}
     ></div>
-  `
+  `,
 })
@@ -140,3 +157,3 @@ export class AppComponent {
       }
-    `
+    `,
   ],
@@ -152,3 +169,3 @@ template: `
     ></div>
-  `
+  `,
 })
@@ -181,3 +198,3 @@ export class AppComponent {
     ></div>
-  `
+  `,
 })
@@ -208,3 +225,3 @@ export class AppComponent {
       }
-    `
+    `,
   ],
@@ -222,3 +239,3 @@ template: `
     </div>
-  `
+  `,
 })
@@ -257,4 +274,2 @@ export class AppComponent {
 
-Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/ngx-infinite-scroll#sponsor)]
-
 <a href="https://opencollective.com/ngx-infinite-scroll/sponsor/0/website" target="_blank"><img src="https://opencollective.com/ngx-infinite-scroll/sponsor/0/avatar.svg"></a>
@@ -261,0 +276,0 @@ <a href="https://opencollective.com/ngx-infinite-scroll/sponsor/1/website" target="_blank"><img src="https://opencollective.com/ngx-infinite-scroll/sponsor/1/avatar.svg"></a>

public_api.d.ts

-/**
- * Angular library starter.
- * Build an Angular library compatible with AoT compilation & Tree shaking.
- * Written by Roberto Simonetti.
- * MIT license.
- * https://github.com/robisim74/angular-library-starter
- */
-/**
- * Entry point for all public APIs of the package.
- */
-export * from './src/ngx-infinite-scroll';

New alerts

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

Fixed alerts

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

240241

1.13%

Dependency count

2

-50%

Lines of code

2538

3.21%

Number of lines in readme file

275

5.77%

No dependency changes