(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/cdk/platform'), require('@angular/core'), require('@angular/common'), require('rxjs'), require('rxjs/operators'), require('ng-zorro-antd/core'), require('ng-zorro-antd/affix')) :
    typeof define === 'function' && define.amd ? define('ng-zorro-antd/anchor', ['exports', '@angular/cdk/platform', '@angular/core', '@angular/common', 'rxjs', 'rxjs/operators', 'ng-zorro-antd/core', 'ng-zorro-antd/affix'], factory) :
    (global = global || self, factory((global['ng-zorro-antd'] = global['ng-zorro-antd'] || {}, global['ng-zorro-antd'].anchor = {}), global.ng.cdk.platform, global.ng.core, global.ng.common, global.rxjs, global.rxjs.operators, global['ng-zorro-antd'].core, global['ng-zorro-antd'].affix));
}(this, (function (exports, platform, core, common, rxjs, operators, core$1, affix) { 'use strict';

    /*! *****************************************************************************
    Copyright (c) Microsoft Corporation. All rights reserved.
    Licensed under the Apache License, Version 2.0 (the "License"); you may not use
    this file except in compliance with the License. You may obtain a copy of the
    License at http://www.apache.org/licenses/LICENSE-2.0

    THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
    WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
    MERCHANTABLITY OR NON-INFRINGEMENT.

    See the Apache Version 2.0 License for specific language governing permissions
    and limitations under the License.
    ***************************************************************************** */
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    }

    /**
     * @license
     * Copyright Alibaba.com All Rights Reserved.
     *
     * 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
     */
    function getOffsetTop(element, container) {
        if (!element || !element.getClientRects().length) {
            return 0;
        }
        var rect = element.getBoundingClientRect();
        if (rect.width || rect.height) {
            if (container === window) {
                var documentElement = element.ownerDocument.documentElement;
                return rect.top - documentElement.clientTop;
            }
            return rect.top - container.getBoundingClientRect().top;
        }
        return rect.top;
    }

    var _c0 = ["ink"];
    function NzAnchorComponent_nz_affix_0_ng_template_1_Template(rf, ctx) { }
    function NzAnchorComponent_nz_affix_0_Template(rf, ctx) { if (rf & 1) {
        core["ɵɵelementStart"](0, "nz-affix", 2);
        core["ɵɵtemplate"](1, NzAnchorComponent_nz_affix_0_ng_template_1_Template, 0, 0, "ng-template", 3);
        core["ɵɵelementEnd"]();
    } if (rf & 2) {
        var ctx_r475 = core["ɵɵnextContext"]();
        var _r476 = core["ɵɵreference"](2);
        core["ɵɵproperty"]("nzOffsetTop", ctx_r475.nzOffsetTop)("nzTarget", ctx_r475.container);
        core["ɵɵadvance"](1);
        core["ɵɵproperty"]("ngTemplateOutlet", _r476);
    } }
    var _c1 = function (a0) { return { fixed: a0 }; };
    function NzAnchorComponent_ng_template_1_Template(rf, ctx) { if (rf & 1) {
        core["ɵɵelementStart"](0, "div", 4);
        core["ɵɵelementStart"](1, "div", 5);
        core["ɵɵelementStart"](2, "div", 6);
        core["ɵɵelement"](3, "div", 7, 8);
        core["ɵɵelementEnd"]();
        core["ɵɵprojection"](5);
        core["ɵɵelementEnd"]();
        core["ɵɵelementEnd"]();
    } if (rf & 2) {
        var ctx_r477 = core["ɵɵnextContext"]();
        core["ɵɵproperty"]("ngStyle", ctx_r477.wrapperStyle);
        core["ɵɵadvance"](1);
        core["ɵɵproperty"]("ngClass", core["ɵɵpureFunction1"](2, _c1, !ctx_r477.nzAffix && !ctx_r477.nzShowInkInFixed));
    } }
    var _c2 = ["*"];
    var NZ_CONFIG_COMPONENT_NAME = 'anchor';
    var sharpMatcherRegx = /#([^#]+)$/;
    var NzAnchorComponent = /** @class */ (function () {
        function NzAnchorComponent(
        /* tslint:disable-next-line:no-any */
        doc, nzConfigService, scrollSrv, cdr, platform, zone, renderer) {
            this.doc = doc;
            this.nzConfigService = nzConfigService;
            this.scrollSrv = scrollSrv;
            this.cdr = cdr;
            this.platform = platform;
            this.zone = zone;
            this.renderer = renderer;
            this.nzAffix = true;
            this.nzClick = new core.EventEmitter();
            this.nzScroll = new core.EventEmitter();
            this.visible = false;
            this.wrapperStyle = { 'max-height': '100vh' };
            this.links = [];
            this.animating = false;
            this.destroy$ = new rxjs.Subject();
            this.handleScrollTimeoutID = -1;
        }
        NzAnchorComponent.prototype.registerLink = function (link) {
            this.links.push(link);
        };
        NzAnchorComponent.prototype.unregisterLink = function (link) {
            this.links.splice(this.links.indexOf(link), 1);
        };
        NzAnchorComponent.prototype.getContainer = function () {
            return this.container || window;
        };
        NzAnchorComponent.prototype.ngAfterViewInit = function () {
            this.registerScrollEvent();
        };
        NzAnchorComponent.prototype.ngOnDestroy = function () {
            clearTimeout(this.handleScrollTimeoutID);
            this.destroy$.next();
            this.destroy$.complete();
        };
        NzAnchorComponent.prototype.registerScrollEvent = function () {
            var _this = this;
            if (!this.platform.isBrowser) {
                return;
            }
            this.destroy$.next();
            this.zone.runOutsideAngular(function () {
                rxjs.fromEvent(_this.getContainer(), 'scroll')
                    .pipe(operators.throttleTime(50), operators.takeUntil(_this.destroy$))
                    .subscribe(function () { return _this.handleScroll(); });
            });
            // Browser would maintain the scrolling position when refreshing.
            // So we have to delay calculation in avoid of getting a incorrect result.
            this.handleScrollTimeoutID = setTimeout(function () { return _this.handleScroll(); });
        };
        NzAnchorComponent.prototype.handleScroll = function () {
            var _this = this;
            if (typeof document === 'undefined' || this.animating) {
                return;
            }
            var sections = [];
            var scope = (this.nzOffsetTop || 0) + this.nzBounds;
            this.links.forEach(function (comp) {
                var sharpLinkMatch = sharpMatcherRegx.exec(comp.nzHref.toString());
                if (!sharpLinkMatch) {
                    return;
                }
                var target = _this.doc.getElementById(sharpLinkMatch[1]);
                if (target) {
                    var top_1 = getOffsetTop(target, _this.getContainer());
                    if (top_1 < scope) {
                        sections.push({
                            top: top_1,
                            comp: comp
                        });
                    }
                }
            });
            this.visible = !!sections.length;
            if (!this.visible) {
                this.clearActive();
                this.cdr.detectChanges();
            }
            else {
                var maxSection = sections.reduce(function (prev, curr) { return (curr.top > prev.top ? curr : prev); });
                this.handleActive(maxSection.comp);
            }
            this.setVisible();
        };
        NzAnchorComponent.prototype.clearActive = function () {
            this.links.forEach(function (i) {
                i.unsetActive();
            });
        };
        NzAnchorComponent.prototype.handleActive = function (comp) {
            this.clearActive();
            comp.setActive();
            var linkNode = comp.getLinkTitleElement();
            this.ink.nativeElement.style.top = linkNode.offsetTop + linkNode.clientHeight / 2 - 4.5 + "px";
            this.visible = true;
            this.setVisible();
            this.nzScroll.emit(comp);
        };
        NzAnchorComponent.prototype.setVisible = function () {
            var visible = this.visible;
            var visibleClassname = 'visible';
            if (this.ink) {
                if (visible) {
                    this.renderer.addClass(this.ink.nativeElement, visibleClassname);
                }
                else {
                    this.renderer.removeClass(this.ink.nativeElement, visibleClassname);
                }
            }
        };
        NzAnchorComponent.prototype.handleScrollTo = function (linkComp) {
            var _this = this;
            var el = this.doc.querySelector(linkComp.nzHref);
            if (!el) {
                return;
            }
            this.animating = true;
            var containerScrollTop = this.scrollSrv.getScroll(this.getContainer());
            var elOffsetTop = getOffsetTop(el, this.getContainer());
            var targetScrollTop = containerScrollTop + elOffsetTop - (this.nzOffsetTop || 0);
            this.scrollSrv.scrollTo(this.getContainer(), targetScrollTop, undefined, function () {
                _this.animating = false;
                _this.handleActive(linkComp);
            });
            this.nzClick.emit(linkComp.nzHref);
        };
        NzAnchorComponent.prototype.ngOnChanges = function (changes) {
            var nzOffsetTop = changes.nzOffsetTop, nzTarget = changes.nzTarget, nzContainer = changes.nzContainer;
            if (nzOffsetTop) {
                this.wrapperStyle = {
                    'max-height': "calc(100vh - " + this.nzOffsetTop + "px)"
                };
            }
            if (nzContainer || nzTarget) {
                var container = this.nzContainer || this.nzTarget;
                this.container = typeof container === 'string' ? this.doc.querySelector(container) : container;
                this.registerScrollEvent();
                if (nzTarget) {
                    core$1.warnDeprecation("'nzTarget' of 'nz-anchor' is deprecated and will be removed in 10.0.0.Please use 'nzContainer' instead.");
                }
            }
        };
        /** @nocollapse */ NzAnchorComponent.ɵfac = function NzAnchorComponent_Factory(t) { return new (t || NzAnchorComponent)(core["ɵɵdirectiveInject"](common.DOCUMENT), core["ɵɵdirectiveInject"](core$1.NzConfigService), core["ɵɵdirectiveInject"](core$1.NzScrollService), core["ɵɵdirectiveInject"](core.ChangeDetectorRef), core["ɵɵdirectiveInject"](platform.Platform), core["ɵɵdirectiveInject"](core.NgZone), core["ɵɵdirectiveInject"](core.Renderer2)); };
        /** @nocollapse */ NzAnchorComponent.ɵcmp = core["ɵɵdefineComponent"]({ type: NzAnchorComponent, selectors: [["nz-anchor"]], viewQuery: function NzAnchorComponent_Query(rf, ctx) { if (rf & 1) {
                core["ɵɵviewQuery"](_c0, true);
            } if (rf & 2) {
                var _t;
                core["ɵɵqueryRefresh"](_t = core["ɵɵloadQuery"]()) && (ctx.ink = _t.first);
            } }, inputs: { nzAffix: "nzAffix", nzShowInkInFixed: "nzShowInkInFixed", nzBounds: "nzBounds", nzOffsetTop: "nzOffsetTop", nzContainer: "nzContainer", nzTarget: "nzTarget" }, outputs: { nzClick: "nzClick", nzScroll: "nzScroll" }, exportAs: ["nzAnchor"], features: [core["ɵɵNgOnChangesFeature"]], ngContentSelectors: _c2, decls: 3, vars: 2, consts: [[3, "nzOffsetTop", "nzTarget", 4, "ngIf", "ngIfElse"], ["content", ""], [3, "nzOffsetTop", "nzTarget"], [3, "ngTemplateOutlet"], [1, "ant-anchor-wrapper", 3, "ngStyle"], [1, "ant-anchor", 3, "ngClass"], [1, "ant-anchor-ink"], [1, "ant-anchor-ink-ball"], ["ink", ""]], template: function NzAnchorComponent_Template(rf, ctx) { if (rf & 1) {
                core["ɵɵprojectionDef"]();
                core["ɵɵtemplate"](0, NzAnchorComponent_nz_affix_0_Template, 2, 3, "nz-affix", 0);
                core["ɵɵtemplate"](1, NzAnchorComponent_ng_template_1_Template, 6, 4, "ng-template", null, 1, core["ɵɵtemplateRefExtractor"]);
            } if (rf & 2) {
                var _r476 = core["ɵɵreference"](2);
                core["ɵɵproperty"]("ngIf", ctx.nzAffix)("ngIfElse", _r476);
            } }, directives: [common.NgIf, affix.NzAffixComponent, common.NgTemplateOutlet, common.NgStyle, common.NgClass], encapsulation: 2, changeDetection: 0 });
        __decorate([
            core$1.InputBoolean(),
            __metadata("design:type", Object)
        ], NzAnchorComponent.prototype, "nzAffix", void 0);
        __decorate([
            core$1.WithConfig(NZ_CONFIG_COMPONENT_NAME, false),
            core$1.InputBoolean(),
            __metadata("design:type", Boolean)
        ], NzAnchorComponent.prototype, "nzShowInkInFixed", void 0);
        __decorate([
            core$1.WithConfig(NZ_CONFIG_COMPONENT_NAME, 5),
            core$1.InputNumber(),
            __metadata("design:type", Number)
        ], NzAnchorComponent.prototype, "nzBounds", void 0);
        __decorate([
            core$1.InputNumber(),
            core$1.WithConfig(NZ_CONFIG_COMPONENT_NAME),
            __metadata("design:type", Number)
        ], NzAnchorComponent.prototype, "nzOffsetTop", void 0);
        return NzAnchorComponent;
    }());
    /*@__PURE__*/ (function () { core["ɵsetClassMetadata"](NzAnchorComponent, [{
            type: core.Component,
            args: [{
                    selector: 'nz-anchor',
                    exportAs: 'nzAnchor',
                    preserveWhitespaces: false,
                    template: "\n    <nz-affix *ngIf=\"nzAffix; else content\" [nzOffsetTop]=\"nzOffsetTop\" [nzTarget]=\"container\">\n      <ng-template [ngTemplateOutlet]=\"content\"></ng-template>\n    </nz-affix>\n    <ng-template #content>\n      <div class=\"ant-anchor-wrapper\" [ngStyle]=\"wrapperStyle\">\n        <div class=\"ant-anchor\" [ngClass]=\"{ fixed: !nzAffix && !nzShowInkInFixed }\">\n          <div class=\"ant-anchor-ink\">\n            <div class=\"ant-anchor-ink-ball\" #ink></div>\n          </div>\n          <ng-content></ng-content>\n        </div>\n      </div>\n    </ng-template>\n  ",
                    encapsulation: core.ViewEncapsulation.None,
                    changeDetection: core.ChangeDetectionStrategy.OnPush
                }]
        }], function () { return [{ type: undefined, decorators: [{
                    type: core.Inject,
                    args: [common.DOCUMENT]
                }] }, { type: core$1.NzConfigService }, { type: core$1.NzScrollService }, { type: core.ChangeDetectorRef }, { type: platform.Platform }, { type: core.NgZone }, { type: core.Renderer2 }]; }, { ink: [{
                type: core.ViewChild,
                args: ['ink', { static: false }]
            }], nzAffix: [{
                type: core.Input
            }], nzShowInkInFixed: [{
                type: core.Input
            }], nzBounds: [{
                type: core.Input
            }], nzOffsetTop: [{
                type: core.Input
            }], nzContainer: [{
                type: core.Input
            }], nzTarget: [{
                type: core.Input
            }], nzClick: [{
                type: core.Output
            }], nzScroll: [{
                type: core.Output
            }] }); })();

    /**
     * @license
     * Copyright Alibaba.com All Rights Reserved.
     *
     * 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 _c0$1 = ["nzTemplate"];
    var _c1$1 = ["linkTitle"];
    function NzAnchorLinkComponent_span_2_Template(rf, ctx) { if (rf & 1) {
        core["ɵɵelementStart"](0, "span");
        core["ɵɵtext"](1);
        core["ɵɵelementEnd"]();
    } if (rf & 2) {
        var ctx_r481 = core["ɵɵnextContext"]();
        core["ɵɵadvance"](1);
        core["ɵɵtextInterpolate"](ctx_r481.titleStr);
    } }
    var _c2$1 = ["*"];
    var NzAnchorLinkComponent = /** @class */ (function () {
        function NzAnchorLinkComponent(elementRef, anchorComp, platform, renderer) {
            this.elementRef = elementRef;
            this.anchorComp = anchorComp;
            this.platform = platform;
            this.renderer = renderer;
            this.nzHref = '#';
            this.titleStr = '';
            this.renderer.addClass(elementRef.nativeElement, 'ant-anchor-link');
        }
        Object.defineProperty(NzAnchorLinkComponent.prototype, "nzTitle", {
            set: function (value) {
                if (value instanceof core.TemplateRef) {
                    this.titleStr = null;
                    this.titleTpl = value;
                }
                else {
                    this.titleStr = value;
                }
            },
            enumerable: true,
            configurable: true
        });
        NzAnchorLinkComponent.prototype.ngOnInit = function () {
            this.anchorComp.registerLink(this);
        };
        NzAnchorLinkComponent.prototype.getLinkTitleElement = function () {
            return this.linkTitle.nativeElement;
        };
        NzAnchorLinkComponent.prototype.setActive = function () {
            this.renderer.addClass(this.elementRef.nativeElement, 'ant-anchor-link-active');
        };
        NzAnchorLinkComponent.prototype.unsetActive = function () {
            this.renderer.removeClass(this.elementRef.nativeElement, 'ant-anchor-link-active');
        };
        NzAnchorLinkComponent.prototype.goToClick = function (e) {
            e.preventDefault();
            e.stopPropagation();
            if (this.platform.isBrowser) {
                this.anchorComp.handleScrollTo(this);
            }
        };
        NzAnchorLinkComponent.prototype.ngOnDestroy = function () {
            this.anchorComp.unregisterLink(this);
        };
        /** @nocollapse */ NzAnchorLinkComponent.ɵfac = function NzAnchorLinkComponent_Factory(t) { return new (t || NzAnchorLinkComponent)(core["ɵɵdirectiveInject"](core.ElementRef), core["ɵɵdirectiveInject"](NzAnchorComponent), core["ɵɵdirectiveInject"](platform.Platform), core["ɵɵdirectiveInject"](core.Renderer2)); };
        /** @nocollapse */ NzAnchorLinkComponent.ɵcmp = core["ɵɵdefineComponent"]({ type: NzAnchorLinkComponent, selectors: [["nz-link"]], contentQueries: function NzAnchorLinkComponent_ContentQueries(rf, ctx, dirIndex) { if (rf & 1) {
                core["ɵɵcontentQuery"](dirIndex, _c0$1, true);
            } if (rf & 2) {
                var _t;
                core["ɵɵqueryRefresh"](_t = core["ɵɵloadQuery"]()) && (ctx.nzTemplate = _t.first);
            } }, viewQuery: function NzAnchorLinkComponent_Query(rf, ctx) { if (rf & 1) {
                core["ɵɵviewQuery"](_c1$1, true);
            } if (rf & 2) {
                var _t;
                core["ɵɵqueryRefresh"](_t = core["ɵɵloadQuery"]()) && (ctx.linkTitle = _t.first);
            } }, inputs: { nzHref: "nzHref", nzTitle: "nzTitle" }, exportAs: ["nzLink"], ngContentSelectors: _c2$1, decls: 4, vars: 4, consts: [[1, "ant-anchor-link-title", 3, "href", "title", "click"], ["linkTitle", ""], [4, "ngIf", "ngIfElse"]], template: function NzAnchorLinkComponent_Template(rf, ctx) { if (rf & 1) {
                core["ɵɵprojectionDef"]();
                core["ɵɵelementStart"](0, "a", 0, 1);
                core["ɵɵlistener"]("click", function NzAnchorLinkComponent_Template_a_click_0_listener($event) { return ctx.goToClick($event); });
                core["ɵɵtemplate"](2, NzAnchorLinkComponent_span_2_Template, 2, 1, "span", 2);
                core["ɵɵelementEnd"]();
                core["ɵɵprojection"](3);
            } if (rf & 2) {
                core["ɵɵpropertyInterpolate"]("href", ctx.nzHref, core["ɵɵsanitizeUrl"]);
                core["ɵɵpropertyInterpolate"]("title", ctx.titleStr);
                core["ɵɵadvance"](2);
                core["ɵɵproperty"]("ngIf", ctx.titleStr)("ngIfElse", ctx.titleTpl || ctx.nzTemplate);
            } }, directives: [common.NgIf], styles: ["\n      nz-link {\n        display: block;\n      }\n    "], encapsulation: 2, changeDetection: 0 });
        return NzAnchorLinkComponent;
    }());
    /*@__PURE__*/ (function () { core["ɵsetClassMetadata"](NzAnchorLinkComponent, [{
            type: core.Component,
            args: [{
                    selector: 'nz-link',
                    exportAs: 'nzLink',
                    preserveWhitespaces: false,
                    template: "\n    <a #linkTitle (click)=\"goToClick($event)\" href=\"{{ nzHref }}\" class=\"ant-anchor-link-title\" title=\"{{ titleStr }}\">\n      <span *ngIf=\"titleStr; else titleTpl || nzTemplate\">{{ titleStr }}</span>\n    </a>\n    <ng-content></ng-content>\n  ",
                    styles: [
                        "\n      nz-link {\n        display: block;\n      }\n    "
                    ],
                    encapsulation: core.ViewEncapsulation.None,
                    changeDetection: core.ChangeDetectionStrategy.OnPush
                }]
        }], function () { return [{ type: core.ElementRef }, { type: NzAnchorComponent }, { type: platform.Platform }, { type: core.Renderer2 }]; }, { nzHref: [{
                type: core.Input
            }], nzTitle: [{
                type: core.Input
            }], nzTemplate: [{
                type: core.ContentChild,
                args: ['nzTemplate', { static: false }]
            }], linkTitle: [{
                type: core.ViewChild,
                args: ['linkTitle']
            }] }); })();

    /**
     * @license
     * Copyright Alibaba.com All Rights Reserved.
     *
     * 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 NzAnchorModule = /** @class */ (function () {
        function NzAnchorModule() {
        }
        /** @nocollapse */ NzAnchorModule.ɵmod = core["ɵɵdefineNgModule"]({ type: NzAnchorModule });
        /** @nocollapse */ NzAnchorModule.ɵinj = core["ɵɵdefineInjector"]({ factory: function NzAnchorModule_Factory(t) { return new (t || NzAnchorModule)(); }, providers: [core$1.SCROLL_SERVICE_PROVIDER], imports: [[common.CommonModule, affix.NzAffixModule, platform.PlatformModule]] });
        return NzAnchorModule;
    }());
    (function () { (typeof ngJitMode === "undefined" || ngJitMode) && core["ɵɵsetNgModuleScope"](NzAnchorModule, { declarations: [NzAnchorComponent, NzAnchorLinkComponent], imports: [common.CommonModule, affix.NzAffixModule, platform.PlatformModule], exports: [NzAnchorComponent, NzAnchorLinkComponent] }); })();
    /*@__PURE__*/ (function () { core["ɵsetClassMetadata"](NzAnchorModule, [{
            type: core.NgModule,
            args: [{
                    declarations: [NzAnchorComponent, NzAnchorLinkComponent],
                    exports: [NzAnchorComponent, NzAnchorLinkComponent],
                    imports: [common.CommonModule, affix.NzAffixModule, platform.PlatformModule],
                    providers: [core$1.SCROLL_SERVICE_PROVIDER]
                }]
        }], null, null); })();

    exports.NzAnchorComponent = NzAnchorComponent;
    exports.NzAnchorLinkComponent = NzAnchorLinkComponent;
    exports.NzAnchorModule = NzAnchorModule;

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

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