(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/cdk/keycodes'), require('@angular/cdk/overlay'), require('@angular/cdk/platform'), require('@angular/cdk/portal'), require('@angular/core'), require('ng-zorro-antd/core/overlay'), require('ng-zorro-antd/core/util'), require('rxjs'), require('rxjs/operators'), require('@angular/common'), require('@angular/forms'), require('ng-zorro-antd/button'), require('ng-zorro-antd/core/no-animation'), require('ng-zorro-antd/core/outlet'), require('ng-zorro-antd/icon'), require('ng-zorro-antd/menu'), require('ng-zorro-antd/core/animation')) :
    typeof define === 'function' && define.amd ? define('ng-zorro-antd/dropdown', ['exports', '@angular/cdk/keycodes', '@angular/cdk/overlay', '@angular/cdk/platform', '@angular/cdk/portal', '@angular/core', 'ng-zorro-antd/core/overlay', 'ng-zorro-antd/core/util', 'rxjs', 'rxjs/operators', '@angular/common', '@angular/forms', 'ng-zorro-antd/button', 'ng-zorro-antd/core/no-animation', 'ng-zorro-antd/core/outlet', 'ng-zorro-antd/icon', 'ng-zorro-antd/menu', 'ng-zorro-antd/core/animation'], factory) :
    (global = global || self, factory((global['ng-zorro-antd'] = global['ng-zorro-antd'] || {}, global['ng-zorro-antd'].dropdown = {}), global.ng.cdk.keycodes, global.ng.cdk.overlay, global.ng.cdk.platform, global.ng.cdk.portal, global.ng.core, global['ng-zorro-antd'].core.overlay, global['ng-zorro-antd'].core.util, global.rxjs, global.rxjs.operators, global.ng.common, global.ng.forms, global['ng-zorro-antd'].button, global['ng-zorro-antd'].core['no-animation'], global['ng-zorro-antd'].core.outlet, global['ng-zorro-antd'].icon, global['ng-zorro-antd'].menu, global['ng-zorro-antd'].core.animation));
}(this, (function (exports, keycodes, i1, platform, portal, i0, overlay, util, rxjs, operators, common, forms, button, noAnimation, outlet, icon, menu, animation) { 'use strict';

    /*! *****************************************************************************
    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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    /** @type {?} */
    var listOfPositions = [overlay.POSITION_MAP.bottomLeft, overlay.POSITION_MAP.bottomRight, overlay.POSITION_MAP.topRight, overlay.POSITION_MAP.topLeft];
    var NzDropDownDirective = /** @class */ (function () {
        /**
         * @param {?} elementRef
         * @param {?} overlay
         * @param {?} renderer
         * @param {?} viewContainerRef
         * @param {?} platform
         */
        function NzDropDownDirective(elementRef, overlay, renderer, viewContainerRef, platform) {
            this.elementRef = elementRef;
            this.overlay = overlay;
            this.renderer = renderer;
            this.viewContainerRef = viewContainerRef;
            this.platform = platform;
            this.overlayRef = null;
            this.destroy$ = new rxjs.Subject();
            this.positionStrategy = this.overlay
                .position()
                .flexibleConnectedTo(this.elementRef.nativeElement)
                .withLockedPosition()
                .withTransformOriginOn('.ant-dropdown');
            this.inputVisible$ = new rxjs.BehaviorSubject(false);
            this.nzTrigger$ = new rxjs.BehaviorSubject('hover');
            this.overlayClose$ = new rxjs.Subject();
            this.nzDropdownMenu = null;
            this.nzTrigger = 'hover';
            this.nzMatchWidthElement = null;
            this.nzBackdrop = true;
            this.nzClickHide = true;
            this.nzDisabled = false;
            this.nzVisible = false;
            this.nzOverlayClassName = '';
            this.nzOverlayStyle = {};
            this.nzPlacement = 'bottomLeft';
            this.nzVisibleChange = new i0.EventEmitter();
        }
        /**
         * @template T
         * @param {?} key
         * @param {?} value
         * @return {?}
         */
        NzDropDownDirective.prototype.setDropdownMenuValue = function (key, value) {
            if (this.nzDropdownMenu) {
                this.nzDropdownMenu.setValue(key, value);
            }
        };
        /**
         * @return {?}
         */
        NzDropDownDirective.prototype.ngOnInit = function () { };
        /**
         * @return {?}
         */
        NzDropDownDirective.prototype.ngAfterViewInit = function () {
            var _this = this;
            if (this.nzDropdownMenu) {
                /** @type {?} */
                var nativeElement_1 = this.elementRef.nativeElement;
                /**
                 * host mouse state *
                 * @type {?}
                 */
                var hostMouseState$ = rxjs.merge(rxjs.fromEvent(nativeElement_1, 'mouseenter').pipe(operators.mapTo(true)), rxjs.fromEvent(nativeElement_1, 'mouseleave').pipe(operators.mapTo(false)));
                /**
                 * menu mouse state *
                 * @type {?}
                 */
                var menuMouseState$ = this.nzDropdownMenu.mouseState$;
                /**
                 * merged mouse state *
                 * @type {?}
                 */
                var mergedMouseState$_1 = rxjs.merge(menuMouseState$, hostMouseState$);
                /**
                 * host click state *
                 * @type {?}
                 */
                var hostClickState$_1 = rxjs.fromEvent(nativeElement_1, 'click').pipe(operators.mapTo(true));
                /**
                 * visible state switch by nzTrigger *
                 * @type {?}
                 */
                var visibleStateByTrigger$ = this.nzTrigger$.pipe(operators.switchMap(( /**
                 * @param {?} trigger
                 * @return {?}
                 */function (/**
                 * @param {?} trigger
                 * @return {?}
                 */ trigger) {
                    if (trigger === 'hover') {
                        return mergedMouseState$_1;
                    }
                    else if (trigger === 'click') {
                        return hostClickState$_1;
                    }
                    else {
                        return rxjs.EMPTY;
                    }
                })));
                /** @type {?} */
                var descendantMenuItemClick$ = this.nzDropdownMenu.descendantMenuItemClick$.pipe(operators.filter(( /**
                 * @return {?}
                 */function () { return _this.nzClickHide; })), operators.mapTo(false));
                /** @type {?} */
                var domTriggerVisible$ = rxjs.merge(visibleStateByTrigger$, descendantMenuItemClick$, this.overlayClose$).pipe(operators.filter(( /**
                 * @return {?}
                 */function () { return !_this.nzDisabled; })));
                /** @type {?} */
                var visible$ = rxjs.merge(this.inputVisible$, domTriggerVisible$);
                rxjs.combineLatest([visible$, this.nzDropdownMenu.isChildSubMenuOpen$])
                    .pipe(operators.map(( /**
             * @param {?} __0
             * @return {?}
             */function (_a) {
                    var _b = __read(_a, 2), visible = _b[0], sub = _b[1];
                    return visible || sub;
                })), operators.auditTime(150), operators.distinctUntilChanged(), operators.filter(( /**
                 * @return {?}
                 */function () { return _this.platform.isBrowser; })), operators.takeUntil(this.destroy$))
                    .subscribe(( /**
             * @param {?} visible
             * @return {?}
             */function (visible) {
                    /** @type {?} */
                    var element = _this.nzMatchWidthElement ? _this.nzMatchWidthElement.nativeElement : nativeElement_1;
                    /** @type {?} */
                    var triggerWidth = element.getBoundingClientRect().width;
                    if (_this.nzVisible !== visible) {
                        _this.nzVisibleChange.emit(visible);
                    }
                    _this.nzVisible = visible;
                    if (visible) {
                        /** set up overlayRef **/
                        if (!_this.overlayRef) {
                            /** new overlay **/
                            _this.overlayRef = _this.overlay.create({
                                positionStrategy: _this.positionStrategy,
                                minWidth: triggerWidth,
                                disposeOnNavigation: true,
                                hasBackdrop: _this.nzTrigger === 'click',
                                backdropClass: _this.nzBackdrop ? undefined : 'nz-overlay-transparent-backdrop',
                                scrollStrategy: _this.overlay.scrollStrategies.reposition()
                            });
                            rxjs.merge(_this.overlayRef.backdropClick(), _this.overlayRef.detachments(), _this.overlayRef.keydownEvents().pipe(operators.filter(( /**
                             * @param {?} e
                             * @return {?}
                             */function (/**
                             * @param {?} e
                             * @return {?}
                             */ e) { return e.keyCode === keycodes.ESCAPE && !keycodes.hasModifierKey(e); }))))
                                .pipe(operators.mapTo(false), operators.takeUntil(_this.destroy$))
                                .subscribe(_this.overlayClose$);
                        }
                        else {
                            /**
                             * update overlay config *
                             * @type {?}
                             */
                            var overlayConfig = _this.overlayRef.getConfig();
                            overlayConfig.minWidth = triggerWidth;
                            overlayConfig.hasBackdrop = _this.nzTrigger === 'click';
                        }
                        /** open dropdown with animation **/
                        _this.positionStrategy.withPositions(__spread([overlay.POSITION_MAP[_this.nzPlacement]], listOfPositions));
                        /** reset portal if needed **/
                        if (!_this.portal || _this.portal.templateRef !== ( /** @type {?} */(_this.nzDropdownMenu)).templateRef) {
                            _this.portal = new portal.TemplatePortal(( /** @type {?} */(_this.nzDropdownMenu)).templateRef, _this.viewContainerRef);
                        }
                        _this.overlayRef.attach(_this.portal);
                    }
                    else {
                        /** detach overlayRef if needed **/
                        if (_this.overlayRef) {
                            _this.overlayRef.detach();
                        }
                    }
                }));
            }
        };
        /**
         * @return {?}
         */
        NzDropDownDirective.prototype.ngOnDestroy = function () {
            this.destroy$.next();
            this.destroy$.complete();
            if (this.overlayRef) {
                this.overlayRef.dispose();
                this.overlayRef = null;
            }
        };
        /**
         * @param {?} changes
         * @return {?}
         */
        NzDropDownDirective.prototype.ngOnChanges = function (changes) {
            var nzVisible = changes.nzVisible, nzDisabled = changes.nzDisabled, nzOverlayClassName = changes.nzOverlayClassName, nzOverlayStyle = changes.nzOverlayStyle, nzTrigger = changes.nzTrigger;
            if (nzTrigger) {
                this.nzTrigger$.next(this.nzTrigger);
            }
            if (nzVisible) {
                this.inputVisible$.next(this.nzVisible);
            }
            if (nzDisabled) {
                /** @type {?} */
                var nativeElement = this.elementRef.nativeElement;
                if (this.nzDisabled) {
                    this.renderer.setAttribute(nativeElement, 'disabled', '');
                    this.inputVisible$.next(false);
                }
                else {
                    this.renderer.removeAttribute(nativeElement, 'disabled');
                }
            }
            if (nzOverlayClassName) {
                this.setDropdownMenuValue('nzOverlayClassName', this.nzOverlayClassName);
            }
            if (nzOverlayStyle) {
                this.setDropdownMenuValue('nzOverlayStyle', this.nzOverlayStyle);
            }
        };
        return NzDropDownDirective;
    }());
    NzDropDownDirective.decorators = [
        { type: i0.Directive, args: [{
                    selector: '[nz-dropdown]',
                    exportAs: 'nzDropdown',
                    host: {
                        '[class.ant-dropdown-trigger]': 'true'
                    }
                },] }
    ];
    /** @nocollapse */
    NzDropDownDirective.ctorParameters = function () { return [
        { type: i0.ElementRef },
        { type: i1.Overlay },
        { type: i0.Renderer2 },
        { type: i0.ViewContainerRef },
        { type: platform.Platform }
    ]; };
    NzDropDownDirective.propDecorators = {
        nzDropdownMenu: [{ type: i0.Input }],
        nzTrigger: [{ type: i0.Input }],
        nzMatchWidthElement: [{ type: i0.Input }],
        nzBackdrop: [{ type: i0.Input }],
        nzClickHide: [{ type: i0.Input }],
        nzDisabled: [{ type: i0.Input }],
        nzVisible: [{ type: i0.Input }],
        nzOverlayClassName: [{ type: i0.Input }],
        nzOverlayStyle: [{ type: i0.Input }],
        nzPlacement: [{ type: i0.Input }],
        nzVisibleChange: [{ type: i0.Output }]
    };
    __decorate([
        util.InputBoolean(),
        __metadata("design:type", Object)
    ], NzDropDownDirective.prototype, "nzBackdrop", void 0);
    __decorate([
        util.InputBoolean(),
        __metadata("design:type", Object)
    ], NzDropDownDirective.prototype, "nzClickHide", void 0);
    __decorate([
        util.InputBoolean(),
        __metadata("design:type", Object)
    ], NzDropDownDirective.prototype, "nzDisabled", void 0);
    __decorate([
        util.InputBoolean(),
        __metadata("design:type", Object)
    ], NzDropDownDirective.prototype, "nzVisible", void 0);
    if (false) {
        /** @type {?} */
        NzDropDownDirective.ngAcceptInputType_nzBackdrop;
        /** @type {?} */
        NzDropDownDirective.ngAcceptInputType_nzClickHide;
        /** @type {?} */
        NzDropDownDirective.ngAcceptInputType_nzDisabled;
        /** @type {?} */
        NzDropDownDirective.ngAcceptInputType_nzVisible;
        /**
         * @type {?}
         * @private
         */
        NzDropDownDirective.prototype.portal;
        /**
         * @type {?}
         * @private
         */
        NzDropDownDirective.prototype.overlayRef;
        /**
         * @type {?}
         * @private
         */
        NzDropDownDirective.prototype.destroy$;
        /**
         * @type {?}
         * @private
         */
        NzDropDownDirective.prototype.positionStrategy;
        /**
         * @type {?}
         * @private
         */
        NzDropDownDirective.prototype.inputVisible$;
        /**
         * @type {?}
         * @private
         */
        NzDropDownDirective.prototype.nzTrigger$;
        /**
         * @type {?}
         * @private
         */
        NzDropDownDirective.prototype.overlayClose$;
        /** @type {?} */
        NzDropDownDirective.prototype.nzDropdownMenu;
        /** @type {?} */
        NzDropDownDirective.prototype.nzTrigger;
        /** @type {?} */
        NzDropDownDirective.prototype.nzMatchWidthElement;
        /** @type {?} */
        NzDropDownDirective.prototype.nzBackdrop;
        /** @type {?} */
        NzDropDownDirective.prototype.nzClickHide;
        /** @type {?} */
        NzDropDownDirective.prototype.nzDisabled;
        /** @type {?} */
        NzDropDownDirective.prototype.nzVisible;
        /** @type {?} */
        NzDropDownDirective.prototype.nzOverlayClassName;
        /** @type {?} */
        NzDropDownDirective.prototype.nzOverlayStyle;
        /** @type {?} */
        NzDropDownDirective.prototype.nzPlacement;
        /** @type {?} */
        NzDropDownDirective.prototype.nzVisibleChange;
        /** @type {?} */
        NzDropDownDirective.prototype.elementRef;
        /**
         * @type {?}
         * @private
         */
        NzDropDownDirective.prototype.overlay;
        /**
         * @type {?}
         * @private
         */
        NzDropDownDirective.prototype.renderer;
        /**
         * @type {?}
         * @private
         */
        NzDropDownDirective.prototype.viewContainerRef;
        /**
         * @type {?}
         * @private
         */
        NzDropDownDirective.prototype.platform;
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: context-menu.service.module.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    var NzContextMenuServiceModule = /** @class */ (function () {
        function NzContextMenuServiceModule() {
        }
        return NzContextMenuServiceModule;
    }());
    NzContextMenuServiceModule.decorators = [
        { type: i0.NgModule }
    ];

    /**
     * @fileoverview added by tsickle
     * Generated from: dropdown-a.directive.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    var NzDropDownADirective = /** @class */ (function () {
        function NzDropDownADirective() {
        }
        return NzDropDownADirective;
    }());
    NzDropDownADirective.decorators = [
        { type: i0.Directive, args: [{
                    selector: 'a[nz-dropdown]',
                    host: {
                        '[class.ant-dropdown-link]': 'true'
                    }
                },] }
    ];

    /**
     * @fileoverview added by tsickle
     * Generated from: dropdown-button.directive.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    var NzDropdownButtonDirective = /** @class */ (function () {
        /**
         * @param {?} renderer
         * @param {?} nzButtonGroupComponent
         * @param {?} elementRef
         */
        function NzDropdownButtonDirective(renderer, nzButtonGroupComponent, elementRef) {
            this.renderer = renderer;
            this.nzButtonGroupComponent = nzButtonGroupComponent;
            this.elementRef = elementRef;
        }
        /**
         * @return {?}
         */
        NzDropdownButtonDirective.prototype.ngAfterViewInit = function () {
            /** @type {?} */
            var parentElement = this.renderer.parentNode(this.elementRef.nativeElement);
            if (this.nzButtonGroupComponent && parentElement) {
                this.renderer.addClass(parentElement, 'ant-dropdown-button');
            }
        };
        return NzDropdownButtonDirective;
    }());
    NzDropdownButtonDirective.decorators = [
        { type: i0.Directive, args: [{
                    selector: '[nz-button][nz-dropdown]'
                },] }
    ];
    /** @nocollapse */
    NzDropdownButtonDirective.ctorParameters = function () { return [
        { type: i0.Renderer2 },
        { type: button.NzButtonGroupComponent, decorators: [{ type: i0.Host }, { type: i0.Optional }] },
        { type: i0.ElementRef }
    ]; };
    if (false) {
        /**
         * @type {?}
         * @private
         */
        NzDropdownButtonDirective.prototype.renderer;
        /**
         * @type {?}
         * @private
         */
        NzDropdownButtonDirective.prototype.nzButtonGroupComponent;
        /**
         * @type {?}
         * @private
         */
        NzDropdownButtonDirective.prototype.elementRef;
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: dropdown-menu.component.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    var NzDropdownMenuComponent = /** @class */ (function () {
        /**
         * @param {?} cdr
         * @param {?} elementRef
         * @param {?} renderer
         * @param {?} viewContainerRef
         * @param {?} nzMenuService
         * @param {?=} noAnimation
         */
        function NzDropdownMenuComponent(cdr, elementRef, renderer, viewContainerRef, nzMenuService, noAnimation) {
            this.cdr = cdr;
            this.elementRef = elementRef;
            this.renderer = renderer;
            this.viewContainerRef = viewContainerRef;
            this.nzMenuService = nzMenuService;
            this.noAnimation = noAnimation;
            this.mouseState$ = new rxjs.BehaviorSubject(false);
            this.isChildSubMenuOpen$ = this.nzMenuService.isChildSubMenuOpen$;
            this.descendantMenuItemClick$ = this.nzMenuService.descendantMenuItemClick$;
            this.nzOverlayClassName = '';
            this.nzOverlayStyle = {};
        }
        /**
         * @param {?} visible
         * @return {?}
         */
        NzDropdownMenuComponent.prototype.setMouseState = function (visible) {
            this.mouseState$.next(visible);
        };
        /**
         * @template T
         * @param {?} key
         * @param {?} value
         * @return {?}
         */
        NzDropdownMenuComponent.prototype.setValue = function (key, value) {
            this[key] = value;
            this.cdr.markForCheck();
        };
        /**
         * @return {?}
         */
        NzDropdownMenuComponent.prototype.ngAfterContentInit = function () {
            this.renderer.removeChild(this.renderer.parentNode(this.elementRef.nativeElement), this.elementRef.nativeElement);
        };
        return NzDropdownMenuComponent;
    }());
    NzDropdownMenuComponent.decorators = [
        { type: i0.Component, args: [{
                    selector: "nz-dropdown-menu",
                    exportAs: "nzDropdownMenu",
                    animations: [animation.slideMotion],
                    providers: [
                        menu.MenuService,
                        /** menu is inside dropdown-menu component **/
                        {
                            provide: menu.NzIsMenuInsideDropDownToken,
                            useValue: true
                        }
                    ],
                    template: "\n    <ng-template>\n      <div\n        class=\"ant-dropdown\"\n        [ngClass]=\"nzOverlayClassName\"\n        [ngStyle]=\"nzOverlayStyle\"\n        [@slideMotion]=\"'enter'\"\n        [@.disabled]=\"noAnimation?.nzNoAnimation\"\n        [nzNoAnimation]=\"noAnimation?.nzNoAnimation\"\n        (mouseenter)=\"setMouseState(true)\"\n        (mouseleave)=\"setMouseState(false)\"\n      >\n        <ng-content></ng-content>\n      </div>\n    </ng-template>\n  ",
                    preserveWhitespaces: false,
                    encapsulation: i0.ViewEncapsulation.None,
                    changeDetection: i0.ChangeDetectionStrategy.OnPush
                }] }
    ];
    /** @nocollapse */
    NzDropdownMenuComponent.ctorParameters = function () { return [
        { type: i0.ChangeDetectorRef },
        { type: i0.ElementRef },
        { type: i0.Renderer2 },
        { type: i0.ViewContainerRef },
        { type: menu.MenuService },
        { type: noAnimation.NzNoAnimationDirective, decorators: [{ type: i0.Host }, { type: i0.Optional }] }
    ]; };
    NzDropdownMenuComponent.propDecorators = {
        templateRef: [{ type: i0.ViewChild, args: [i0.TemplateRef, { static: true },] }]
    };
    if (false) {
        /** @type {?} */
        NzDropdownMenuComponent.prototype.mouseState$;
        /** @type {?} */
        NzDropdownMenuComponent.prototype.isChildSubMenuOpen$;
        /** @type {?} */
        NzDropdownMenuComponent.prototype.descendantMenuItemClick$;
        /** @type {?} */
        NzDropdownMenuComponent.prototype.nzOverlayClassName;
        /** @type {?} */
        NzDropdownMenuComponent.prototype.nzOverlayStyle;
        /** @type {?} */
        NzDropdownMenuComponent.prototype.templateRef;
        /**
         * @type {?}
         * @private
         */
        NzDropdownMenuComponent.prototype.cdr;
        /**
         * @type {?}
         * @private
         */
        NzDropdownMenuComponent.prototype.elementRef;
        /**
         * @type {?}
         * @private
         */
        NzDropdownMenuComponent.prototype.renderer;
        /** @type {?} */
        NzDropdownMenuComponent.prototype.viewContainerRef;
        /** @type {?} */
        NzDropdownMenuComponent.prototype.nzMenuService;
        /** @type {?} */
        NzDropdownMenuComponent.prototype.noAnimation;
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: dropdown.module.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    var NzDropDownModule = /** @class */ (function () {
        function NzDropDownModule() {
        }
        return NzDropDownModule;
    }());
    NzDropDownModule.decorators = [
        { type: i0.NgModule, args: [{
                    imports: [
                        common.CommonModule,
                        i1.OverlayModule,
                        forms.FormsModule,
                        button.NzButtonModule,
                        menu.NzMenuModule,
                        icon.NzIconModule,
                        noAnimation.NzNoAnimationModule,
                        platform.PlatformModule,
                        overlay.NzOverlayModule,
                        NzContextMenuServiceModule,
                        outlet.NzOutletModule
                    ],
                    entryComponents: [NzDropdownMenuComponent],
                    declarations: [NzDropDownDirective, NzDropDownADirective, NzDropdownMenuComponent, NzDropdownButtonDirective],
                    exports: [menu.NzMenuModule, NzDropDownDirective, NzDropDownADirective, NzDropdownMenuComponent, NzDropdownButtonDirective]
                },] }
    ];

    /**
     * @fileoverview added by tsickle
     * Generated from: context-menu.service.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */
    /** @type {?} */
    var listOfPositions$1 = [
        new i1.ConnectionPositionPair({ originX: 'start', originY: 'top' }, { overlayX: 'start', overlayY: 'top' }),
        new i1.ConnectionPositionPair({ originX: 'start', originY: 'top' }, { overlayX: 'start', overlayY: 'bottom' }),
        new i1.ConnectionPositionPair({ originX: 'start', originY: 'top' }, { overlayX: 'end', overlayY: 'bottom' }),
        new i1.ConnectionPositionPair({ originX: 'start', originY: 'top' }, { overlayX: 'end', overlayY: 'top' })
    ];
    var NzContextMenuService = /** @class */ (function () {
        /**
         * @param {?} overlay
         */
        function NzContextMenuService(overlay) {
            this.overlay = overlay;
            this.overlayRef = null;
            this.closeSubscription = rxjs.Subscription.EMPTY;
        }
        /**
         * @param {?} $event
         * @param {?} nzDropdownMenuComponent
         * @return {?}
         */
        NzContextMenuService.prototype.create = function ($event, nzDropdownMenuComponent) {
            var _this = this;
            this.close(true);
            var x = $event.x, y = $event.y;
            if ($event instanceof MouseEvent) {
                $event.preventDefault();
            }
            /** @type {?} */
            var positionStrategy = this.overlay
                .position()
                .flexibleConnectedTo({ x: x, y: y })
                .withPositions(listOfPositions$1)
                .withTransformOriginOn('.ant-dropdown');
            this.overlayRef = this.overlay.create({
                positionStrategy: positionStrategy,
                disposeOnNavigation: true,
                scrollStrategy: this.overlay.scrollStrategies.close()
            });
            this.closeSubscription = rxjs.merge(nzDropdownMenuComponent.descendantMenuItemClick$, rxjs.fromEvent(document, 'click').pipe(operators.filter(( /**
             * @param {?} event
             * @return {?}
             */function (/**
             * @param {?} event
             * @return {?}
             */ event) { return !!_this.overlayRef && !_this.overlayRef.overlayElement.contains(( /** @type {?} */(event.target))); })), 
            /** handle firefox contextmenu event **/
            operators.filter(( /**
             * @param {?} event
             * @return {?}
             */function (/**
             * @param {?} event
             * @return {?}
             */ event) { return event.button !== 2; })), operators.take(1))).subscribe(( /**
             * @return {?}
             */function () {
                _this.close();
            }));
            this.overlayRef.attach(new portal.TemplatePortal(nzDropdownMenuComponent.templateRef, nzDropdownMenuComponent.viewContainerRef));
        };
        /**
         * @param {?=} clear
         * @return {?}
         */
        NzContextMenuService.prototype.close = function (clear) {
            if (clear === void 0) { clear = false; }
            if (this.overlayRef) {
                this.overlayRef.detach();
                if (clear) {
                    this.overlayRef.dispose();
                }
                this.overlayRef = null;
                this.closeSubscription.unsubscribe();
            }
        };
        return NzContextMenuService;
    }());
    NzContextMenuService.decorators = [
        { type: i0.Injectable, args: [{
                    providedIn: NzContextMenuServiceModule
                },] }
    ];
    /** @nocollapse */
    NzContextMenuService.ctorParameters = function () { return [
        { type: i1.Overlay }
    ]; };
    /** @nocollapse */ NzContextMenuService.ɵprov = i0.ɵɵdefineInjectable({ factory: function NzContextMenuService_Factory() { return new NzContextMenuService(i0.ɵɵinject(i1.Overlay)); }, token: NzContextMenuService, providedIn: NzContextMenuServiceModule });
    if (false) {
        /**
         * @type {?}
         * @private
         */
        NzContextMenuService.prototype.overlayRef;
        /**
         * @type {?}
         * @private
         */
        NzContextMenuService.prototype.closeSubscription;
        /**
         * @type {?}
         * @private
         */
        NzContextMenuService.prototype.overlay;
    }

    /**
     * @fileoverview added by tsickle
     * Generated from: public-api.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */

    /**
     * @fileoverview added by tsickle
     * Generated from: ng-zorro-antd-dropdown.ts
     * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
     */

    exports.NzContextMenuService = NzContextMenuService;
    exports.NzContextMenuServiceModule = NzContextMenuServiceModule;
    exports.NzDropDownADirective = NzDropDownADirective;
    exports.NzDropDownDirective = NzDropDownDirective;
    exports.NzDropDownModule = NzDropDownModule;
    exports.NzDropdownButtonDirective = NzDropdownButtonDirective;
    exports.NzDropdownMenuComponent = NzDropdownMenuComponent;

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

})));
//# sourceMappingURL=ng-zorro-antd-dropdown.umd.js.map
