text: var __assign = (this && this.__assign) || function () {
      __assign = Object.assign || function(t) {
          for (var s, i = 1, n = arguments.length; i < n; i++) {
              s = arguments[i];
              for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                  t[p] = s[p];
          }
          return t;
      };
      return __assign.apply(this, arguments);
  };
  var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
      var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
      if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
      else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
      return c > 3 && r && Object.defineProperty(target, key, r), r;
  };
  var __metadata = (this && this.__metadata) || function (k, v) {
      if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
  };
  import { ComponentFactoryResolver, Injectable, NgZone } from '@angular/core';
  import { filter, takeUntil, takeWhile, distinctUntilChanged } from 'rxjs/operators';
  import { Subject, BehaviorSubject } from 'rxjs';
  import { createContainer, NbOverlayService, patch } from '../overlay-service';
  import { NbOverlayContainer } from '../mapping';
  var NbDynamicOverlay = /** @class */ (function () {
      function NbDynamicOverlay(overlay, componentFactoryResolver, zone, overlayContainer) {
          this.overlay = overlay;
          this.componentFactoryResolver = componentFactoryResolver;
          this.zone = zone;
          this.overlayContainer = overlayContainer;
          this.context = {};
          this.overlayConfig = {};
          this.positionStrategyChange$ = new Subject();
          this.isShown$ = new BehaviorSubject(false);
          this.alive = true;
      }
      Object.defineProperty(NbDynamicOverlay.prototype, "isAttached", {
          get: function () {
              return this.ref && this.ref.hasAttached();
          },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(NbDynamicOverlay.prototype, "isShown", {
          get: function () {
              return this.isShown$.pipe(distinctUntilChanged());
          },
          enumerable: true,
          configurable: true
      });
      NbDynamicOverlay.prototype.create = function (componentType, content, context, positionStrategy, overlayConfig) {
          if (overlayConfig === void 0) { overlayConfig = {}; }
          this.setContentAndContext(content, context);
          this.setComponent(componentType);
          this.setPositionStrategy(positionStrategy);
          this.setOverlayConfig(overlayConfig);
          return this;
      };
      NbDynamicOverlay.prototype.setContent = function (content) {
          this.content = content;
          if (this.container) {
              this.updateContext();
          }
      };
      NbDynamicOverlay.prototype.setContext = function (context) {
          this.context = context;
          if (this.container) {
              this.updateContext();
          }
      };
      NbDynamicOverlay.prototype.setContentAndContext = function (content, context) {
          this.content = content;
          this.context = context;
          if (this.container) {
              this.updateContext();
          }
      };
      NbDynamicOverlay.prototype.setComponent = function (componentType) {
          this.componentType = componentType;
          // in case the component is shown we recreate it and show it back
          var wasAttached = this.isAttached;
          this.disposeOverlayRef();
          if (wasAttached) {
              this.show();
          }
      };
      NbDynamicOverlay.prototype.setPositionStrategy = function (positionStrategy) {
          var _this = this;
          this.positionStrategyChange$.next();
          this.positionStrategy = positionStrategy;
          this.positionStrategy.positionChange
              .pipe(takeWhile(function () { return _this.alive; }), takeUntil(this.positionStrategyChange$), filter(function () { return !!_this.container; }))
              .subscribe(function (position) {
              _this.lastAppliedPosition = position;
              patch(_this.container, { position: position });
          });
          if (this.ref) {
              this.ref.updatePositionStrategy(this.positionStrategy);
          }
      };
      NbDynamicOverlay.prototype.setOverlayConfig = function (overlayConfig) {
          this.overlayConfig = overlayConfig;
          var wasAttached = this.isAttached;
          this.disposeOverlayRef();
          if (wasAttached) {
              this.show();
          }
      };
      NbDynamicOverlay.prototype.show = function () {
          if (!this.ref) {
              this.createOverlay();
          }
          this.renderContainer();
          if (!this.hasOverlayInContainer()) {
              // Dispose overlay ref as it refers to the old overlay container and create new by calling `show`
              this.disposeOverlayRef();
              return this.show();
          }
          this.isShown$.next(true);
      };
      NbDynamicOverlay.prototype.hide = function () {
          if (!this.ref) {
              return;
          }
          this.ref.detach();
          this.container = null;
          this.isShown$.next(false);
      };
      NbDynamicOverlay.prototype.toggle = function () {
          if (this.isAttached) {
              this.hide();
          }
          else {
              this.show();
          }
      };
      NbDynamicOverlay.prototype.dispose = function () {
          this.alive = false;
          this.hide();
          this.disposeOverlayRef();
          this.isShown$.complete();
          this.positionStrategyChange$.complete();
      };
      NbDynamicOverlay.prototype.getContainer = function () {
          return this.container;
      };
      NbDynamicOverlay.prototype.createOverlay = function () {
          this.ref = this.overlay.create(__assign({ positionStrategy: this.positionStrategy, scrollStrategy: this.overlay.scrollStrategies.reposition() }, this.overlayConfig));
          this.updatePositionWhenStable();
      };
      NbDynamicOverlay.prototype.renderContainer = function () {
          var containerContext = this.createContainerContext();
          if (!this.container) {
              this.container = createContainer(this.ref, this.componentType, containerContext, this.componentFactoryResolver);
          }
          this.container.instance.renderContent();
      };
      NbDynamicOverlay.prototype.updateContext = function () {
          var containerContext = this.createContainerContext();
          Object.assign(this.container.instance, containerContext);
          this.container.instance.renderContent();
          this.container.changeDetectorRef.detectChanges();
      };
      NbDynamicOverlay.prototype.createContainerContext = function () {
          return {
              content: this.content,
              context: this.context,
              cfr: this.componentFactoryResolver,
              position: this.lastAppliedPosition,
          };
      };
      /**
       * Dimensions of the container may change after content update. So we listen to zone.stable event to
       * reposition the container.
       */
      NbDynamicOverlay.prototype.updatePositionWhenStable = function () {
          var _this = this;
          this.zone.onStable
              .pipe(takeWhile(function () { return _this.alive; }))
              .subscribe(function () {
              _this.ref && _this.ref.updatePosition();
          });
      };
      NbDynamicOverlay.prototype.hasOverlayInContainer = function () {
          return this.overlayContainer.getContainerElement().contains(this.ref.hostElement);
      };
      NbDynamicOverlay.prototype.disposeOverlayRef = function () {
          if (this.ref) {
              this.ref.dispose();
              this.ref = null;
              this.container = null;
          }
      };
      NbDynamicOverlay = __decorate([
          Injectable(),
          __metadata("design:paramtypes", [NbOverlayService,
              ComponentFactoryResolver,
              NgZone,
              NbOverlayContainer])
      ], NbDynamicOverlay);
      return NbDynamicOverlay;
  }());
  export { NbDynamicOverlay };
  //# sourceMappingURL=dynamic-overlay.js.map