init

node_modules/ng-zorro-antd/back-top/index.d.ts

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+import { Direction } from '@angular/cdk/bidi';
+import * as i0 from '@angular/core';
+import { OnInit, OnChanges, TemplateRef, EventEmitter, ElementRef, SimpleChanges } from '@angular/core';
+import { NzConfigService, NzConfigKey } from 'ng-zorro-antd/core/config';
+
+/**
+ * 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
+ */
+
+/**
+ * @deprecated Will be removed in v21. It is recommended to use `<nz-float-button-top>` instead.
+ */
+declare class NzBackTopComponent implements OnInit, OnChanges {
+    nzConfigService: NzConfigService;
+    private scrollSrv;
+    private platform;
+    private zone;
+    private cdr;
+    private directionality;
+    private destroyRef;
+    readonly _nzModuleName: NzConfigKey;
+    private scrollListenerDestroy$;
+    private target;
+    visible: boolean;
+    dir: Direction;
+    nzTemplate?: TemplateRef<void>;
+    nzVisibilityHeight: number;
+    nzTarget?: string | HTMLElement;
+    nzDuration: number;
+    readonly nzClick: EventEmitter<boolean>;
+    set backTop(backTop: ElementRef<HTMLElement> | undefined);
+    private backTopClickSubscription;
+    private doc;
+    constructor();
+    ngOnInit(): void;
+    private getTarget;
+    private handleScroll;
+    private registerScrollEvent;
+    ngOnChanges(changes: SimpleChanges): void;
+    static ɵfac: i0.ɵɵFactoryDeclaration<NzBackTopComponent, never>;
+    static ɵcmp: i0.ɵɵComponentDeclaration<NzBackTopComponent, "nz-back-top", ["nzBackTop"], { "nzTemplate": { "alias": "nzTemplate"; "required": false; }; "nzVisibilityHeight": { "alias": "nzVisibilityHeight"; "required": false; }; "nzTarget": { "alias": "nzTarget"; "required": false; }; "nzDuration": { "alias": "nzDuration"; "required": false; }; }, { "nzClick": "nzClick"; }, never, never, true, never>;
+    static ngAcceptInputType_nzVisibilityHeight: unknown;
+    static ngAcceptInputType_nzDuration: unknown;
+}
+
+/**
+ * @deprecated Will be removed in v21. It is recommended to use `<nz-float-button-top>` instead.
+ */
+declare class NzBackTopModule {
+    static ɵfac: i0.ɵɵFactoryDeclaration<NzBackTopModule, never>;
+    static ɵmod: i0.ɵɵNgModuleDeclaration<NzBackTopModule, never, [typeof NzBackTopComponent], [typeof NzBackTopComponent]>;
+    static ɵinj: i0.ɵɵInjectorDeclaration<NzBackTopModule>;
+}
+
+export { NzBackTopComponent, NzBackTopModule };

node_modules/ng-zorro-antd/back-top/package.json

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+{
+  "module": "../fesm2022/ng-zorro-antd-back-top.mjs"
+}

node_modules/ng-zorro-antd/back-top/style/entry.less

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+@import './index.less';

node_modules/ng-zorro-antd/back-top/style/index.css

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+/* stylelint-disable at-rule-empty-line-before,at-rule-name-space-after,at-rule-no-unknown */
+/* stylelint-disable no-duplicate-selectors */
+.ant-back-top {
+  box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+  color: rgba(0, 0, 0, 0.85);
+  font-size: 14px;
+  font-variant: tabular-nums;
+  line-height: 1.5715;
+  list-style: none;
+  font-feature-settings: 'tnum';
+  position: fixed;
+  right: 100px;
+  bottom: 50px;
+  z-index: 10;
+  width: 40px;
+  height: 40px;
+  cursor: pointer;
+}
+.ant-back-top:empty {
+  display: none;
+}
+.ant-back-top-rtl {
+  right: auto;
+  left: 100px;
+  direction: rtl;
+}
+.ant-back-top-content {
+  width: 40px;
+  height: 40px;
+  overflow: hidden;
+  color: #fff;
+  text-align: center;
+  background-color: rgba(0, 0, 0, 0.45);
+  border-radius: 20px;
+  transition: all 0.3s;
+}
+.ant-back-top-content:hover {
+  background-color: rgba(0, 0, 0, 0.85);
+  transition: all 0.3s;
+}
+.ant-back-top-icon {
+  font-size: 24px;
+  line-height: 40px;
+}
+@media screen and (max-width: 768px) {
+  .ant-back-top {
+    right: 60px;
+  }
+  .ant-back-top-rtl {
+    right: auto;
+    left: 60px;
+  }
+}
+@media screen and (max-width: 480px) {
+  .ant-back-top {
+    right: 20px;
+  }
+  .ant-back-top-rtl {
+    right: auto;
+    left: 20px;
+  }
+}

node_modules/ng-zorro-antd/back-top/style/index.less

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+@import '../../style/themes/index';
+@import '../../style/mixins/index';
+
+@backtop-prefix-cls: ~'@{ant-prefix}-back-top';
+
+.@{backtop-prefix-cls} {
+  .reset-component();
+
+  position: fixed;
+  right: 100px;
+  bottom: 50px;
+  z-index: @zindex-back-top;
+  width: 40px;
+  height: 40px;
+  cursor: pointer;
+
+  &:empty {
+    display: none;
+  }
+
+  &-rtl {
+    right: auto;
+    left: 100px;
+    direction: rtl;
+  }
+
+  &-content {
+    width: 40px;
+    height: 40px;
+    overflow: hidden;
+    color: @back-top-color;
+    text-align: center;
+    background-color: @back-top-bg;
+    border-radius: 20px;
+    transition: all 0.3s;
+
+    &:hover {
+      background-color: @back-top-hover-bg;
+      transition: all 0.3s;
+    }
+  }
+
+  &-icon {
+    font-size: 24px;
+    line-height: 40px;
+  }
+}
+
+@import './responsive';

node_modules/ng-zorro-antd/back-top/style/index.min.css

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+.ant-back-top{box-sizing:border-box;margin:0;padding:0;color:rgba(0,0,0,.85);font-size:14px;font-variant:tabular-nums;line-height:1.5715;list-style:none;font-feature-settings:'tnum';position:fixed;right:100px;bottom:50px;z-index:10;width:40px;height:40px;cursor:pointer}.ant-back-top:empty{display:none}.ant-back-top-rtl{right:auto;left:100px;direction:rtl}.ant-back-top-content{width:40px;height:40px;overflow:hidden;color:#fff;text-align:center;background-color:rgba(0,0,0,.45);border-radius:20px;transition:all .3s}.ant-back-top-content:hover{background-color:rgba(0,0,0,.85);transition:all .3s}.ant-back-top-icon{font-size:24px;line-height:40px}@media screen and (max-width:768px){.ant-back-top{right:60px}.ant-back-top-rtl{right:auto;left:60px}}@media screen and (max-width:480px){.ant-back-top{right:20px}.ant-back-top-rtl{right:auto;left:20px}}

node_modules/ng-zorro-antd/back-top/style/responsive.less

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+@media screen and (max-width: @screen-md) {
+  .@{backtop-prefix-cls} {
+    right: 60px;
+
+    &-rtl {
+      right: auto;
+      left: 60px;
+    }
+  }
+}
+
+@media screen and (max-width: @screen-xs) {
+  .@{backtop-prefix-cls} {
+    right: 20px;
+
+    &-rtl {
+      right: auto;
+      left: 20px;
+    }
+  }
+}