{"version":3,"file":"ng-zorro-antd-cdk-resize-observer.mjs","sources":["../../components/cdk/resize-observer/resize-observer.service.ts","../../components/cdk/resize-observer/resize-observer.directive.ts","../../components/cdk/resize-observer/resize-observer.module.ts","../../components/cdk/resize-observer/public-api.ts","../../components/cdk/resize-observer/ng-zorro-antd-cdk-resize-observer.ts"],"sourcesContent":["/**\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE\n */\n\nimport { coerceElement } from '@angular/cdk/coercion';\nimport { ElementRef, Injectable, OnDestroy } from '@angular/core';\nimport { Observable, Observer, Subject } from 'rxjs';\n\n/**\n * Factory that creates a new ResizeObserver and allows us to stub it out in unit tests.\n */\n@Injectable({ providedIn: 'root' })\nexport class NzResizeObserverFactory {\n  create(callback: ResizeObserverCallback): ResizeObserver | null {\n    return typeof ResizeObserver === 'undefined' ? null : new ResizeObserver(callback);\n  }\n}\n\n/** An injectable service that allows watching elements for changes to their content. */\n@Injectable({ providedIn: 'root' })\nexport class NzResizeObserver implements OnDestroy {\n  /** Keeps track of the existing ResizeObservers so they can be reused. */\n  private observedElements = new Map<\n    Element,\n    {\n      observer: ResizeObserver | null;\n      stream: Subject<ResizeObserverEntry[]>;\n      count: number;\n    }\n  >();\n\n  constructor(private nzResizeObserverFactory: NzResizeObserverFactory) {}\n\n  ngOnDestroy(): void {\n    this.observedElements.forEach((_, element) => this.cleanupObserver(element));\n  }\n\n  observe(elementOrRef: Element | ElementRef<Element>): Observable<ResizeObserverEntry[]> {\n    const element = coerceElement(elementOrRef);\n\n    return new Observable((observer: Observer<ResizeObserverEntry[]>) => {\n      const stream = this.observeElement(element);\n      const subscription = stream.subscribe(observer);\n\n      return () => {\n        subscription.unsubscribe();\n        this.unobserveElement(element);\n      };\n    });\n  }\n\n  /**\n   * Observes the given element by using the existing ResizeObserver if available, or creating a\n   * new one if not.\n   */\n  private observeElement(element: Element): Subject<ResizeObserverEntry[]> {\n    if (!this.observedElements.has(element)) {\n      const stream = new Subject<ResizeObserverEntry[]>();\n      const observer = this.nzResizeObserverFactory.create((mutations: ResizeObserverEntry[]) =>\n        stream.next(mutations)\n      );\n      if (observer) {\n        observer.observe(element);\n      }\n      this.observedElements.set(element, { observer, stream, count: 1 });\n    } else {\n      this.observedElements.get(element)!.count++;\n    }\n    return this.observedElements.get(element)!.stream;\n  }\n\n  /**\n   * Un-observes the given element and cleans up the underlying ResizeObserver if nobody else is\n   * observing this element.\n   */\n  private unobserveElement(element: Element): void {\n    if (this.observedElements.has(element)) {\n      this.observedElements.get(element)!.count--;\n      if (!this.observedElements.get(element)!.count) {\n        this.cleanupObserver(element);\n      }\n    }\n  }\n\n  /** Clean up the underlying ResizeObserver for the specified element. */\n  private cleanupObserver(element: Element): void {\n    if (this.observedElements.has(element)) {\n      const { observer, stream } = this.observedElements.get(element)!;\n      if (observer) {\n        observer.disconnect();\n      }\n      stream.complete();\n      this.observedElements.delete(element);\n    }\n  }\n}\n","/**\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE\n */\n\nimport {\n  AfterContentInit,\n  Directive,\n  ElementRef,\n  EventEmitter,\n  Input,\n  OnChanges,\n  OnDestroy,\n  Output,\n  SimpleChanges,\n  booleanAttribute\n} from '@angular/core';\nimport { Subscription } from 'rxjs';\n\nimport { NzResizeObserver, NzResizeObserverFactory } from './resize-observer.service';\n\n@Directive({\n  selector: '[nzResizeObserver]',\n  standalone: true,\n  providers: [NzResizeObserverFactory]\n})\nexport class NzResizeObserverDirective implements AfterContentInit, OnDestroy, OnChanges {\n  @Output() readonly nzResizeObserve = new EventEmitter<ResizeObserverEntry[]>();\n  @Input({ transform: booleanAttribute }) nzResizeObserverDisabled = false;\n  private currentSubscription: Subscription | null = null;\n\n  private subscribe(): void {\n    this.unsubscribe();\n    this.currentSubscription = this.nzResizeObserver.observe(this.elementRef).subscribe(this.nzResizeObserve);\n  }\n\n  private unsubscribe(): void {\n    this.currentSubscription?.unsubscribe();\n  }\n\n  constructor(\n    private nzResizeObserver: NzResizeObserver,\n    private elementRef: ElementRef<HTMLElement>\n  ) {}\n\n  ngAfterContentInit(): void {\n    if (!this.currentSubscription && !this.nzResizeObserverDisabled) {\n      this.subscribe();\n    }\n  }\n\n  ngOnDestroy(): void {\n    this.unsubscribe();\n  }\n\n  ngOnChanges(changes: SimpleChanges): void {\n    const { nzResizeObserve } = changes;\n    if (nzResizeObserve) {\n      if (this.nzResizeObserverDisabled) {\n        this.unsubscribe();\n      } else {\n        this.subscribe();\n      }\n    }\n  }\n}\n","/**\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE\n */\n\nimport { NgModule } from '@angular/core';\n\nimport { NzResizeObserverDirective } from './resize-observer.directive';\n\n@NgModule({\n  imports: [NzResizeObserverDirective],\n  exports: [NzResizeObserverDirective]\n})\nexport class NzResizeObserverModule {}\n","/**\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE\n */\n\nexport { NzResizeObserverModule } from './resize-observer.module';\nexport { NzResizeObserverDirective } from './resize-observer.directive';\nexport { NzResizeObserver, NzResizeObserverFactory } from './resize-observer.service';\n","/**\n * Generated bundle index. Do not edit.\n */\n\nexport * from './public-api';\n"],"names":["i1.NzResizeObserver"],"mappings":";;;;;AAAA;;;AAGG;AAMH;;AAEG;MAEU,uBAAuB,CAAA;AAClC,IAAA,MAAM,CAAC,QAAgC,EAAA;AACrC,QAAA,OAAO,OAAO,cAAc,KAAK,WAAW,GAAG,IAAI,GAAG,IAAI,cAAc,CAAC,QAAQ,CAAC,CAAC;KACpF;8GAHU,uBAAuB,EAAA,IAAA,EAAA,EAAA,EAAA,MAAA,EAAA,EAAA,CAAA,eAAA,CAAA,UAAA,EAAA,CAAA,CAAA,EAAA;AAAvB,IAAA,SAAA,IAAA,CAAA,KAAA,GAAA,EAAA,CAAA,qBAAA,CAAA,EAAA,UAAA,EAAA,QAAA,EAAA,OAAA,EAAA,QAAA,EAAA,QAAA,EAAA,EAAA,EAAA,IAAA,EAAA,uBAAuB,cADV,MAAM,EAAA,CAAA,CAAA,EAAA;;2FACnB,uBAAuB,EAAA,UAAA,EAAA,CAAA;kBADnC,UAAU;mBAAC,EAAE,UAAU,EAAE,MAAM,EAAE,CAAA;;AAOlC;MAEa,gBAAgB,CAAA;AAW3B,IAAA,WAAA,CAAoB,uBAAgD,EAAA;QAAhD,IAAuB,CAAA,uBAAA,GAAvB,uBAAuB,CAAyB;;AAT5D,QAAA,IAAA,CAAA,gBAAgB,GAAG,IAAI,GAAG,EAO/B,CAAC;KAEoE;IAExE,WAAW,GAAA;AACT,QAAA,IAAI,CAAC,gBAAgB,CAAC,OAAO,CAAC,CAAC,CAAC,EAAE,OAAO,KAAK,IAAI,CAAC,eAAe,CAAC,OAAO,CAAC,CAAC,CAAC;KAC9E;AAED,IAAA,OAAO,CAAC,YAA2C,EAAA;AACjD,QAAA,MAAM,OAAO,GAAG,aAAa,CAAC,YAAY,CAAC,CAAC;AAE5C,QAAA,OAAO,IAAI,UAAU,CAAC,CAAC,QAAyC,KAAI;YAClE,MAAM,MAAM,GAAG,IAAI,CAAC,cAAc,CAAC,OAAO,CAAC,CAAC;YAC5C,MAAM,YAAY,GAAG,MAAM,CAAC,SAAS,CAAC,QAAQ,CAAC,CAAC;AAEhD,YAAA,OAAO,MAAK;gBACV,YAAY,CAAC,WAAW,EAAE,CAAC;AAC3B,gBAAA,IAAI,CAAC,gBAAgB,CAAC,OAAO,CAAC,CAAC;AACjC,aAAC,CAAC;AACJ,SAAC,CAAC,CAAC;KACJ;AAED;;;AAGG;AACK,IAAA,cAAc,CAAC,OAAgB,EAAA;QACrC,IAAI,CAAC,IAAI,CAAC,gBAAgB,CAAC,GAAG,CAAC,OAAO,CAAC,EAAE;AACvC,YAAA,MAAM,MAAM,GAAG,IAAI,OAAO,EAAyB,CAAC;YACpD,MAAM,QAAQ,GAAG,IAAI,CAAC,uBAAuB,CAAC,MAAM,CAAC,CAAC,SAAgC,KACpF,MAAM,CAAC,IAAI,CAAC,SAAS,CAAC,CACvB,CAAC;YACF,IAAI,QAAQ,EAAE;AACZ,gBAAA,QAAQ,CAAC,OAAO,CAAC,OAAO,CAAC,CAAC;aAC3B;AACD,YAAA,IAAI,CAAC,gBAAgB,CAAC,GAAG,CAAC,OAAO,EAAE,EAAE,QAAQ,EAAE,MAAM,EAAE,KAAK,EAAE,CAAC,EAAE,CAAC,CAAC;SACpE;aAAM;YACL,IAAI,CAAC,gBAAgB,CAAC,GAAG,CAAC,OAAO,CAAE,CAAC,KAAK,EAAE,CAAC;SAC7C;QACD,OAAO,IAAI,CAAC,gBAAgB,CAAC,GAAG,CAAC,OAAO,CAAE,CAAC,MAAM,CAAC;KACnD;AAED;;;AAGG;AACK,IAAA,gBAAgB,CAAC,OAAgB,EAAA;QACvC,IAAI,IAAI,CAAC,gBAAgB,CAAC,GAAG,CAAC,OAAO,CAAC,EAAE;YACtC,IAAI,CAAC,gBAAgB,CAAC,GAAG,CAAC,OAAO,CAAE,CAAC,KAAK,EAAE,CAAC;AAC5C,YAAA,IAAI,CAAC,IAAI,CAAC,gBAAgB,CAAC,GAAG,CAAC,OAAO,CAAE,CAAC,KAAK,EAAE;AAC9C,gBAAA,IAAI,CAAC,eAAe,CAAC,OAAO,CAAC,CAAC;aAC/B;SACF;KACF;;AAGO,IAAA,eAAe,CAAC,OAAgB,EAAA;QACtC,IAAI,IAAI,CAAC,gBAAgB,CAAC,GAAG,CAAC,OAAO,CAAC,EAAE;AACtC,YAAA,MAAM,EAAE,QAAQ,EAAE,MAAM,EAAE,GAAG,IAAI,CAAC,gBAAgB,CAAC,GAAG,CAAC,OAAO,CAAE,CAAC;YACjE,IAAI,QAAQ,EAAE;gBACZ,QAAQ,CAAC,UAAU,EAAE,CAAC;aACvB;YACD,MAAM,CAAC,QAAQ,EAAE,CAAC;AAClB,YAAA,IAAI,CAAC,gBAAgB,CAAC,MAAM,CAAC,OAAO,CAAC,CAAC;SACvC;KACF;8GA1EU,gBAAgB,EAAA,IAAA,EAAA,CAAA,EAAA,KAAA,EAAA,uBAAA,EAAA,CAAA,EAAA,MAAA,EAAA,EAAA,CAAA,eAAA,CAAA,UAAA,EAAA,CAAA,CAAA,EAAA;AAAhB,IAAA,SAAA,IAAA,CAAA,KAAA,GAAA,EAAA,CAAA,qBAAA,CAAA,EAAA,UAAA,EAAA,QAAA,EAAA,OAAA,EAAA,QAAA,EAAA,QAAA,EAAA,EAAA,EAAA,IAAA,EAAA,gBAAgB,cADH,MAAM,EAAA,CAAA,CAAA,EAAA;;2FACnB,gBAAgB,EAAA,UAAA,EAAA,CAAA;kBAD5B,UAAU;mBAAC,EAAE,UAAU,EAAE,MAAM,EAAE,CAAA;;;ACpBlC;;;AAGG;MAuBU,yBAAyB,CAAA;IAK5B,SAAS,GAAA;QACf,IAAI,CAAC,WAAW,EAAE,CAAC;QACnB,IAAI,CAAC,mBAAmB,GAAG,IAAI,CAAC,gBAAgB,CAAC,OAAO,CAAC,IAAI,CAAC,UAAU,CAAC,CAAC,SAAS,CAAC,IAAI,CAAC,eAAe,CAAC,CAAC;KAC3G;IAEO,WAAW,GAAA;AACjB,QAAA,IAAI,CAAC,mBAAmB,EAAE,WAAW,EAAE,CAAC;KACzC;IAED,WACU,CAAA,gBAAkC,EAClC,UAAmC,EAAA;QADnC,IAAgB,CAAA,gBAAA,GAAhB,gBAAgB,CAAkB;QAClC,IAAU,CAAA,UAAA,GAAV,UAAU,CAAyB;AAf1B,QAAA,IAAA,CAAA,eAAe,GAAG,IAAI,YAAY,EAAyB,CAAC;QACvC,IAAwB,CAAA,wBAAA,GAAG,KAAK,CAAC;QACjE,IAAmB,CAAA,mBAAA,GAAwB,IAAI,CAAC;KAcpD;IAEJ,kBAAkB,GAAA;QAChB,IAAI,CAAC,IAAI,CAAC,mBAAmB,IAAI,CAAC,IAAI,CAAC,wBAAwB,EAAE;YAC/D,IAAI,CAAC,SAAS,EAAE,CAAC;SAClB;KACF;IAED,WAAW,GAAA;QACT,IAAI,CAAC,WAAW,EAAE,CAAC;KACpB;AAED,IAAA,WAAW,CAAC,OAAsB,EAAA;AAChC,QAAA,MAAM,EAAE,eAAe,EAAE,GAAG,OAAO,CAAC;QACpC,IAAI,eAAe,EAAE;AACnB,YAAA,IAAI,IAAI,CAAC,wBAAwB,EAAE;gBACjC,IAAI,CAAC,WAAW,EAAE,CAAC;aACpB;iBAAM;gBACL,IAAI,CAAC,SAAS,EAAE,CAAC;aAClB;SACF;KACF;8GAtCU,yBAAyB,EAAA,IAAA,EAAA,CAAA,EAAA,KAAA,EAAAA,gBAAA,EAAA,EAAA,EAAA,KAAA,EAAA,EAAA,CAAA,UAAA,EAAA,CAAA,EAAA,MAAA,EAAA,EAAA,CAAA,eAAA,CAAA,SAAA,EAAA,CAAA,CAAA,EAAA;AAAzB,IAAA,SAAA,IAAA,CAAA,IAAA,GAAA,EAAA,CAAA,oBAAA,CAAA,EAAA,UAAA,EAAA,QAAA,EAAA,OAAA,EAAA,QAAA,EAAA,IAAA,EAAA,yBAAyB,EAEhB,YAAA,EAAA,IAAA,EAAA,QAAA,EAAA,oBAAA,EAAA,MAAA,EAAA,EAAA,wBAAA,EAAA,CAAA,0BAAA,EAAA,0BAAA,EAAA,gBAAgB,CAJzB,EAAA,EAAA,OAAA,EAAA,EAAA,eAAA,EAAA,iBAAA,EAAA,EAAA,SAAA,EAAA,CAAC,uBAAuB,CAAC,EAAA,aAAA,EAAA,IAAA,EAAA,QAAA,EAAA,EAAA,EAAA,CAAA,CAAA,EAAA;;2FAEzB,yBAAyB,EAAA,UAAA,EAAA,CAAA;kBALrC,SAAS;AAAC,YAAA,IAAA,EAAA,CAAA;AACT,oBAAA,QAAQ,EAAE,oBAAoB;AAC9B,oBAAA,UAAU,EAAE,IAAI;oBAChB,SAAS,EAAE,CAAC,uBAAuB,CAAC;AACrC,iBAAA,CAAA;2GAEoB,eAAe,EAAA,CAAA;sBAAjC,MAAM;gBACiC,wBAAwB,EAAA,CAAA;sBAA/D,KAAK;uBAAC,EAAE,SAAS,EAAE,gBAAgB,EAAE,CAAA;;;AC5BxC;;;AAGG;MAUU,sBAAsB,CAAA;8GAAtB,sBAAsB,EAAA,IAAA,EAAA,EAAA,EAAA,MAAA,EAAA,EAAA,CAAA,eAAA,CAAA,QAAA,EAAA,CAAA,CAAA,EAAA;+GAAtB,sBAAsB,EAAA,OAAA,EAAA,CAHvB,yBAAyB,CAAA,EAAA,OAAA,EAAA,CACzB,yBAAyB,CAAA,EAAA,CAAA,CAAA,EAAA;+GAExB,sBAAsB,EAAA,CAAA,CAAA,EAAA;;2FAAtB,sBAAsB,EAAA,UAAA,EAAA,CAAA;kBAJlC,QAAQ;AAAC,YAAA,IAAA,EAAA,CAAA;oBACR,OAAO,EAAE,CAAC,yBAAyB,CAAC;oBACpC,OAAO,EAAE,CAAC,yBAAyB,CAAC;AACrC,iBAAA,CAAA;;;ACZD;;;AAGG;;ACHH;;AAEG;;;;"}