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ng-zorro-antd

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An enterprise-class UI components based on Ant Design and Angular

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/** * @fileoverview added by tsickle * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc */ import { DOCUMENT } from '@angular/common'; import { Inject, Injectable, Optional, SkipSelf } from '@angular/core'; import { reqAnimFrame } from '../polyfill/request-animation'; /** * @param {?} t * @param {?} b * @param {?} c * @param {?} d * @return {?} */ function easeInOutCubic(t, b, c, d) { /** @type {?} */ const cc = c - b; /** @type {?} */ let tt = t / (d / 2); if (tt < 1) { return cc / 2 * tt * tt * tt + b; } else { return cc / 2 * ((tt -= 2) * tt * tt + 2) + b; } } export class NzScrollService { /* tslint:disable-next-line:no-any */ /** * @param {?} doc */ constructor(doc) { this.doc = doc; } /** * 设置 `el` 滚动条位置 * @param {?} el * @param {?=} topValue * @return {?} */ setScrollTop(el, topValue = 0) { if (el === window) { this.doc.body.scrollTop = topValue; this.doc.documentElement.scrollTop = topValue; } else { ((/** @type {?} */ (el))).scrollTop = topValue; } } /** * 获取 `el` 相对于视窗距离 * @param {?} el * @return {?} */ getOffset(el) { /** @type {?} */ const ret = { top: 0, left: 0 }; if (!el || !el.getClientRects().length) return ret; /** @type {?} */ const rect = el.getBoundingClientRect(); if (rect.width || rect.height) { /** @type {?} */ const doc = el.ownerDocument.documentElement; ret.top = rect.top - doc.clientTop; ret.left = rect.left - doc.clientLeft; } else { ret.top = rect.top; ret.left = rect.left; } return ret; } /** * 获取 `el` 滚动条位置 * @param {?=} el * @param {?=} top * @return {?} */ // TODO: remove '| Window' as the fallback already happens here getScroll(el, top = true) { /** @type {?} */ const target = el ? el : window; /** @type {?} */ const prop = top ? 'pageYOffset' : 'pageXOffset'; /** @type {?} */ const method = top ? 'scrollTop' : 'scrollLeft'; /** @type {?} */ const isWindow = target === window; /** @type {?} */ let ret = isWindow ? target[prop] : target[method]; if (isWindow && typeof ret !== 'number') { ret = this.doc.documentElement[method]; } return ret; } /** * 使用动画形式将 `el` 滚动至某位置 * * @param {?} containerEl 容器,默认 `window` * @param {?=} targetTopValue 滚动至目标 `top` 值,默认:0,相当于顶部 * @param {?=} easing 动作算法,默认:`easeInOutCubic` * @param {?=} callback 动画结束后回调 * @return {?} */ scrollTo(containerEl, targetTopValue = 0, easing, callback) { /** @type {?} */ const target = containerEl ? containerEl : window; /** @type {?} */ const scrollTop = this.getScroll(target); /** @type {?} */ const startTime = Date.now(); /** @type {?} */ const frameFunc = (/** * @return {?} */ () => { /** @type {?} */ const timestamp = Date.now(); /** @type {?} */ const time = timestamp - startTime; this.setScrollTop(target, (easing || easeInOutCubic)(time, scrollTop, targetTopValue, 450)); if (time < 450) { reqAnimFrame(frameFunc); } else { if (callback) callback(); } }); reqAnimFrame(frameFunc); } } NzScrollService.decorators = [ { type: Injectable } ]; /** @nocollapse */ NzScrollService.ctorParameters = () => [ { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] } ]; if (false) { /** * @type {?} * @private */ NzScrollService.prototype.doc; } /** * @param {?} doc * @param {?} scrollService * @return {?} */ export function SCROLL_SERVICE_PROVIDER_FACTORY(doc, scrollService) { return scrollService || new NzScrollService(doc); } /** @type {?} */ export const SCROLL_SERVICE_PROVIDER = { provide: NzScrollService, useFactory: SCROLL_SERVICE_PROVIDER_FACTORY, deps: [DOCUMENT, [new Optional(), new SkipSelf(), NzScrollService]] }; //# 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{ DOCUMENT } from '@angular/common';\nimport { Inject, Injectable, Optional, Provider, SkipSelf } from '@angular/core';\n\nimport { reqAnimFrame } from '../polyfill/request-animation';\n\nexport type EasyingFn = (t: number, b: number, c: number, d: number) => number;\n\nfunction easeInOutCubic(t: number, b: number, c: number, d: number): number {\n  const cc = c - b;\n  let tt = t / (d / 2);\n  if (tt < 1) {\n    return cc / 2 * tt * tt * tt + b;\n  } else {\n    return cc / 2 * ((tt -= 2) * tt * tt + 2) + b;\n  }\n}\n\n@Injectable()\nexport class NzScrollService {\n  private doc: Document;\n\n  /* tslint:disable-next-line:no-any */\n  constructor(@Inject(DOCUMENT) doc: any) {\n    this.doc = doc;\n  }\n\n  /** 设置 `el` 滚动条位置 */\n  setScrollTop(el: Element | Window, topValue: number = 0): void {\n    if (el === window) {\n      this.doc.body.scrollTop = topValue;\n      this.doc.documentElement.scrollTop = topValue;\n    } else {\n      (el as Element).scrollTop = topValue;\n    }\n  }\n\n  /** 获取 `el` 相对于视窗距离 */\n  getOffset(el: Element): { top: number, left: number } {\n    const ret = {\n      top : 0,\n      left: 0\n    };\n    if (!el || !el.getClientRects().length) return ret;\n\n    const rect = el.getBoundingClientRect();\n    if (rect.width || rect.height) {\n      const doc = el.ownerDocument.documentElement;\n      ret.top = rect.top - doc.clientTop;\n      ret.left = rect.left - doc.clientLeft;\n    } else {\n      ret.top = rect.top;\n      ret.left = rect.left;\n    }\n\n    return ret;\n  }\n\n  /** 获取 `el` 滚动条位置 */\n  // TODO: remove '| Window' as the fallback already happens here\n  getScroll(el?: Element | Window, top: boolean = true): number {\n    const target = el ? el : window;\n    const prop = top ? 'pageYOffset' : 'pageXOffset';\n    const method = top ? 'scrollTop' : 'scrollLeft';\n    const isWindow = target === window;\n    let ret = isWindow ? target[ prop ] : target[ method ];\n    if (isWindow && typeof ret !== 'number') {\n      ret = this.doc.documentElement[ method ];\n    }\n    return ret;\n  }\n\n  /**\n   * 使用动画形式将 `el` 滚动至某位置\n   *\n   * @param containerEl 容器，默认 `window`\n   * @param targetTopValue 滚动至目标 `top` 值，默认：0，相当于顶部\n   * @param easing 动作算法，默认：`easeInOutCubic`\n   * @param callback 动画结束后回调\n   */\n  scrollTo(\n    containerEl: Element | Window,\n    targetTopValue: number = 0,\n    easing?: EasyingFn,\n    callback?: () => void\n  ): void {\n    const target = containerEl ? containerEl : window;\n    const scrollTop = this.getScroll(target);\n    const startTime = Date.now();\n    const frameFunc = () => {\n      const timestamp = Date.now();\n      const time = timestamp - startTime;\n      this.setScrollTop(target, (easing || easeInOutCubic)(time, scrollTop, targetTopValue, 450));\n      if (time < 450) {\n        reqAnimFrame(frameFunc);\n      } else {\n        if (callback) callback();\n      }\n    };\n    reqAnimFrame(frameFunc);\n  }\n\n}\n\nexport function SCROLL_SERVICE_PROVIDER_FACTORY(doc: Document, scrollService: NzScrollService): NzScrollService {\n  return scrollService || new NzScrollService(doc);\n}\n\nexport const SCROLL_SERVICE_PROVIDER: Provider = {\n  provide   : NzScrollService,\n  useFactory: SCROLL_SERVICE_PROVIDER_FACTORY,\n  deps      : [ DOCUMENT, [ new Optional(), new SkipSelf(), NzScrollService ] ]\n};\n"]}