(function (global, factory) {
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    typeof define === 'function' && define.amd ? define('ng-zorro-antd/cdk/resize-observer', ['exports', '@angular/core', 'ng-zorro-antd/core/util', '@angular/cdk/coercion', 'rxjs', 'resize-observer-polyfill'], factory) :
    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global['ng-zorro-antd'] = global['ng-zorro-antd'] || {}, global['ng-zorro-antd'].cdk = global['ng-zorro-antd'].cdk || {}, global['ng-zorro-antd'].cdk['resize-observer'] = {}), global.ng.core, global['ng-zorro-antd'].core.util, global.ng.cdk.coercion, global.rxjs, global.ResizeObserver));
}(this, (function (exports, i0, util, coercion, rxjs, ResizeObserver) { 'use strict';

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    /*! *****************************************************************************
    Copyright (c) Microsoft Corporation.

    Permission to use, copy, modify, and/or distribute this software for any
    purpose with or without fee is hereby granted.

    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
    REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
    AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
    INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
    LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
    OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
    PERFORMANCE OF THIS SOFTWARE.
    ***************************************************************************** */
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    /**
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
     */
    /**
     * Factory that creates a new ResizeObserver and allows us to stub it out in unit tests.
     */
    var NzResizeObserverFactory = /** @class */ (function () {
        function NzResizeObserverFactory() {
        }
        NzResizeObserverFactory.prototype.create = function (callback) {
            return typeof ResizeObserver__default['default'] === 'undefined' ? null : new ResizeObserver__default['default'](callback);
        };
        return NzResizeObserverFactory;
    }());
    NzResizeObserverFactory.ɵprov = i0__namespace.ɵɵdefineInjectable({ factory: function NzResizeObserverFactory_Factory() { return new NzResizeObserverFactory(); }, token: NzResizeObserverFactory, providedIn: "root" });
    NzResizeObserverFactory.decorators = [
        { type: i0.Injectable, args: [{ providedIn: 'root' },] }
    ];
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    var NzResizeObserver = /** @class */ (function () {
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            this.nzResizeObserverFactory = nzResizeObserverFactory;
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            this.observedElements = new Map();
        }
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        };
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         */
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                    observer.observe(element);
                }
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            }
            else {
                this.observedElements.get(element).count++;
            }
            return this.observedElements.get(element).stream;
        };
        /**
         * Un-observes the given element and cleans up the underlying ResizeObserver if nobody else is
         * observing this element.
         */
        NzResizeObserver.prototype.unobserveElement = function (element) {
            if (this.observedElements.has(element)) {
                this.observedElements.get(element).count--;
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                    this.cleanupObserver(element);
                }
            }
        };
        /** Clean up the underlying ResizeObserver for the specified element. */
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                    observer.disconnect();
                }
                stream.complete();
                this.observedElements.delete(element);
            }
        };
        return NzResizeObserver;
    }());
    NzResizeObserver.ɵprov = i0__namespace.ɵɵdefineInjectable({ factory: function NzResizeObserver_Factory() { return new NzResizeObserver(i0__namespace.ɵɵinject(NzResizeObserverFactory)); }, token: NzResizeObserver, providedIn: "root" });
    NzResizeObserver.decorators = [
        { type: i0.Injectable, args: [{ providedIn: 'root' },] }
    ];
    NzResizeObserver.ctorParameters = function () { return [
        { type: NzResizeObserverFactory }
    ]; };

    /**
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
     */
    var NzResizeObserverDirective = /** @class */ (function () {
        function NzResizeObserverDirective(nzResizeObserver, elementRef) {
            this.nzResizeObserver = nzResizeObserver;
            this.elementRef = elementRef;
            this.nzResizeObserve = new i0.EventEmitter();
            this.nzResizeObserverDisabled = false;
            this.currentSubscription = null;
        }
        NzResizeObserverDirective.prototype.subscribe = function () {
            this.unsubscribe();
            this.currentSubscription = this.nzResizeObserver.observe(this.elementRef).subscribe(this.nzResizeObserve);
        };
        NzResizeObserverDirective.prototype.unsubscribe = function () {
            var _a;
            (_a = this.currentSubscription) === null || _a === void 0 ? void 0 : _a.unsubscribe();
        };
        NzResizeObserverDirective.prototype.ngAfterContentInit = function () {
            if (!this.currentSubscription && !this.nzResizeObserverDisabled) {
                this.subscribe();
            }
        };
        NzResizeObserverDirective.prototype.ngOnDestroy = function () {
            this.unsubscribe();
        };
        NzResizeObserverDirective.prototype.ngOnChanges = function (changes) {
            var nzResizeObserve = changes.nzResizeObserve;
            if (nzResizeObserve) {
                if (this.nzResizeObserverDisabled) {
                    this.unsubscribe();
                }
                else {
                    this.subscribe();
                }
            }
        };
        return NzResizeObserverDirective;
    }());
    NzResizeObserverDirective.decorators = [
        { type: i0.Directive, args: [{
                    selector: '[nzResizeObserver]'
                },] }
    ];
    NzResizeObserverDirective.ctorParameters = function () { return [
        { type: NzResizeObserver },
        { type: i0.ElementRef }
    ]; };
    NzResizeObserverDirective.propDecorators = {
        nzResizeObserve: [{ type: i0.Output }],
        nzResizeObserverDisabled: [{ type: i0.Input }]
    };
    __decorate([
        util.InputBoolean()
    ], NzResizeObserverDirective.prototype, "nzResizeObserverDisabled", void 0);

    /**
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
     */
    var NzResizeObserverModule = /** @class */ (function () {
        function NzResizeObserverModule() {
        }
        return NzResizeObserverModule;
    }());
    NzResizeObserverModule.decorators = [
        { type: i0.NgModule, args: [{
                    providers: [NzResizeObserverFactory],
                    declarations: [NzResizeObserverDirective],
                    exports: [NzResizeObserverDirective]
                },] }
    ];

    /**
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
     */

    /**
     * Generated bundle index. Do not edit.
     */

    exports.NzResizeObserver = NzResizeObserver;
    exports.NzResizeObserverDirective = NzResizeObserverDirective;
    exports.NzResizeObserverModule = NzResizeObserverModule;
    exports.ɵNzResizeObserverFactory = NzResizeObserverFactory;

    Object.defineProperty(exports, '__esModule', { value: true });

})));
//# sourceMappingURL=ng-zorro-antd-cdk-resize-observer.umd.js.map
