solar-ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
338 lines (337 loc) • 29.7 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes} checked by tsc
*/
import * as tslib_1 from "tslib";
import { ChangeDetectionStrategy, ChangeDetectorRef, Component, ElementRef, EventEmitter, Input, Output, ViewChild } from '@angular/core';
import { NzScrollService } from '../core/scroll/nz-scroll.service';
import { shallowEqual } from '../core/util/check';
import { toNumber } from '../core/util/convert';
import { throttleByAnimationFrameDecorator } from '../core/util/throttleByAnimationFrame';
export class NzAffixComponent {
/**
* @param {?} scrollSrv
* @param {?} _el
* @param {?} cd
*/
constructor(scrollSrv, _el, cd) {
this.scrollSrv = scrollSrv;
this._el = _el;
this.cd = cd;
this.events = [
'resize',
'scroll',
'touchstart',
'touchmove',
'touchend',
'pageshow',
'load'
];
this._target = window;
this.nzChange = new EventEmitter();
}
/**
* @param {?} value
* @return {?}
*/
set nzTarget(value) {
this.clearEventListeners();
this._target = value || window;
this.setTargetEventListeners();
this.updatePosition({});
}
/**
* @param {?} value
* @return {?}
*/
set nzOffsetTop(value) {
if (typeof value === 'undefined') {
return;
}
this._offsetTop = toNumber(value, null);
}
/**
* @return {?}
*/
get nzOffsetTop() {
return this._offsetTop;
}
/**
* @param {?} value
* @return {?}
*/
set nzOffsetBottom(value) {
if (typeof value === 'undefined') {
return;
}
this._offsetBottom = toNumber(value, null);
}
/**
* @return {?}
*/
ngOnInit() {
this.timeout = setTimeout(() => {
this.setTargetEventListeners();
this.updatePosition({});
});
}
/**
* @return {?}
*/
setTargetEventListeners() {
this.clearEventListeners();
this.events.forEach((eventName) => {
this._target.addEventListener(eventName, this.updatePosition, false);
});
}
/**
* @return {?}
*/
clearEventListeners() {
this.events.forEach(eventName => {
this._target.removeEventListener(eventName, this.updatePosition, false);
});
}
/**
* @return {?}
*/
ngOnDestroy() {
this.clearEventListeners();
clearTimeout(this.timeout);
(/** @type {?} */ (this.updatePosition)).cancel();
}
/**
* @param {?} target
* @return {?}
*/
getTargetRect(target) {
return target !== window ?
(/** @type {?} */ (target)).getBoundingClientRect() : /** @type {?} */ ({ top: 0, left: 0, bottom: 0 });
}
/**
* @param {?} element
* @param {?} target
* @return {?}
*/
getOffset(element, target) {
/** @type {?} */
const elemRect = element.getBoundingClientRect();
/** @type {?} */
const targetRect = this.getTargetRect(target);
/** @type {?} */
const scrollTop = this.scrollSrv.getScroll(target, true);
/** @type {?} */
const scrollLeft = this.scrollSrv.getScroll(target, false);
/** @type {?} */
const docElem = window.document.body;
/** @type {?} */
const clientTop = docElem.clientTop || 0;
/** @type {?} */
const clientLeft = docElem.clientLeft || 0;
return {
top: elemRect.top - targetRect.top + scrollTop - clientTop,
left: elemRect.left - targetRect.left + scrollLeft - clientLeft,
width: elemRect.width,
height: elemRect.height
};
}
/**
* @param {?} affixStyle
* @return {?}
*/
genStyle(affixStyle) {
if (affixStyle == null) {
return '';
}
return Object.keys(affixStyle).map(key => {
/** @type {?} */
const val = affixStyle[key];
return `${key}:${typeof val === 'string' ? val : val + 'px'}`;
}).join(';');
}
/**
* @param {?} e
* @param {?} affixStyle
* @return {?}
*/
setAffixStyle(e, affixStyle) {
/** @type {?} */
const originalAffixStyle = this.affixStyle;
/** @type {?} */
const isWindow = this._target === window;
if (e.type === 'scroll' && originalAffixStyle && affixStyle && isWindow) {
return;
}
if (shallowEqual(originalAffixStyle, affixStyle)) {
return;
}
/** @type {?} */
const fixed = !!affixStyle;
/** @type {?} */
const wrapEl = /** @type {?} */ (this.wrap.nativeElement);
wrapEl.style.cssText = this.genStyle(affixStyle);
this.affixStyle = affixStyle;
/** @type {?} */
const cls = 'ant-affix';
if (fixed) {
wrapEl.classList.add(cls);
}
else {
wrapEl.classList.remove(cls);
}
if ((affixStyle && !originalAffixStyle) || (!affixStyle && originalAffixStyle)) {
this.nzChange.emit(fixed);
}
}
/**
* @param {?} placeholderStyle
* @return {?}
*/
setPlaceholderStyle(placeholderStyle) {
/** @type {?} */
const originalPlaceholderStyle = this.placeholderStyle;
if (shallowEqual(placeholderStyle, originalPlaceholderStyle)) {
return;
}
(/** @type {?} */ (this._el.nativeElement)).style.cssText = this.genStyle(placeholderStyle);
this.placeholderStyle = placeholderStyle;
}
/**
* @param {?} e
* @return {?}
*/
updatePosition(e) {
/** @type {?} */
const targetNode = this._target;
/** @type {?} */
let offsetTop = this.nzOffsetTop;
/** @type {?} */
const scrollTop = this.scrollSrv.getScroll(targetNode, true);
/** @type {?} */
const affixNode = /** @type {?} */ (this._el.nativeElement);
/** @type {?} */
const elemOffset = this.getOffset(affixNode, targetNode);
/** @type {?} */
const elemSize = {
width: affixNode.offsetWidth,
height: affixNode.offsetHeight
};
/** @type {?} */
const offsetMode = {
top: false,
bottom: false
};
// Default to `offsetTop=0`.
if (typeof offsetTop !== 'number' && typeof this._offsetBottom !== 'number') {
offsetMode.top = true;
offsetTop = 0;
}
else {
offsetMode.top = typeof offsetTop === 'number';
offsetMode.bottom = typeof this._offsetBottom === 'number';
}
/** @type {?} */
const targetRect = this.getTargetRect(targetNode);
/** @type {?} */
const targetInnerHeight = (/** @type {?} */ (targetNode)).innerHeight || (/** @type {?} */ (targetNode)).clientHeight;
if (scrollTop > elemOffset.top - (/** @type {?} */ (offsetTop)) && offsetMode.top) {
/** @type {?} */
const width = elemOffset.width;
/** @type {?} */
const top = targetRect.top + (/** @type {?} */ (offsetTop));
this.setAffixStyle(e, {
position: 'fixed',
top,
left: targetRect.left + elemOffset.left,
maxHeight: `calc(100vh - ${top}px)`,
width
});
this.setPlaceholderStyle({
width,
height: elemSize.height
});
}
else if (scrollTop < elemOffset.top + elemSize.height + (/** @type {?} */ (this._offsetBottom)) - targetInnerHeight &&
offsetMode.bottom) {
/** @type {?} */
const targetBottomOffet = targetNode === window ? 0 : (window.innerHeight - targetRect.bottom);
/** @type {?} */
const width = elemOffset.width;
this.setAffixStyle(e, {
position: 'fixed',
bottom: targetBottomOffet + (/** @type {?} */ (this._offsetBottom)),
left: targetRect.left + elemOffset.left,
width
});
this.setPlaceholderStyle({
width,
height: elemOffset.height
});
}
else {
if (e.type === 'resize' && this.affixStyle && this.affixStyle.position === 'fixed' && affixNode.offsetWidth) {
this.setAffixStyle(e, Object.assign({}, this.affixStyle, { width: affixNode.offsetWidth }));
}
else {
this.setAffixStyle(e, null);
}
this.setPlaceholderStyle(null);
}
}
}
NzAffixComponent.decorators = [
{ type: Component, args: [{
selector: 'nz-affix',
template: "<div #wrap>\n <ng-content></ng-content>\n</div>",
changeDetection: ChangeDetectionStrategy.OnPush,
styles: [`:host {
display: block;
}`]
}] }
];
/** @nocollapse */
NzAffixComponent.ctorParameters = () => [
{ type: NzScrollService },
{ type: ElementRef },
{ type: ChangeDetectorRef }
];
NzAffixComponent.propDecorators = {
wrap: [{ type: ViewChild, args: ['wrap',] }],
nzTarget: [{ type: Input }],
nzOffsetTop: [{ type: Input }],
nzOffsetBottom: [{ type: Input }],
nzChange: [{ type: Output }]
};
tslib_1.__decorate([
throttleByAnimationFrameDecorator(),
tslib_1.__metadata("design:type", Function),
tslib_1.__metadata("design:paramtypes", [Object]),
tslib_1.__metadata("design:returntype", void 0)
], NzAffixComponent.prototype, "updatePosition", null);
function NzAffixComponent_tsickle_Closure_declarations() {
/** @type {?} */
NzAffixComponent.prototype.timeout;
/** @type {?} */
NzAffixComponent.prototype.events;
/** @type {?} */
NzAffixComponent.prototype.affixStyle;
/** @type {?} */
NzAffixComponent.prototype.placeholderStyle;
/** @type {?} */
NzAffixComponent.prototype.wrap;
/** @type {?} */
NzAffixComponent.prototype._target;
/** @type {?} */
NzAffixComponent.prototype._offsetTop;
/** @type {?} */
NzAffixComponent.prototype._offsetBottom;
/** @type {?} */
NzAffixComponent.prototype.nzChange;
/** @type {?} */
NzAffixComponent.prototype.scrollSrv;
/** @type {?} */
NzAffixComponent.prototype._el;
/** @type {?} */
NzAffixComponent.prototype.cd;
}
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tslint:disable:no-any\nimport {\n  ChangeDetectionStrategy,\n  ChangeDetectorRef,\n  Component,\n  ElementRef,\n  EventEmitter,\n  Input,\n  OnDestroy,\n  OnInit,\n  Output,\n  ViewChild\n} from '@angular/core';\n\nimport { NzScrollService } from '../core/scroll/nz-scroll.service';\nimport { shallowEqual } from '../core/util/check';\nimport { toNumber } from '../core/util/convert';\nimport { throttleByAnimationFrameDecorator } from '../core/util/throttleByAnimationFrame';\n\n@Component({\n  selector       : 'nz-affix',\n  templateUrl    : './nz-affix.component.html',\n  changeDetection: ChangeDetectionStrategy.OnPush,\n  styles         : [\n    `:host {\n      display: block;\n    }`\n  ]\n})\nexport class NzAffixComponent implements OnInit, OnDestroy {\n\n  private timeout: any;\n  private events = [\n    'resize',\n    'scroll',\n    'touchstart',\n    'touchmove',\n    'touchend',\n    'pageshow',\n    'load'\n  ];\n  private affixStyle: any;\n  private placeholderStyle: any;\n\n  @ViewChild('wrap') private wrap: ElementRef;\n\n  private _target: Element | Window = window;\n\n  @Input()\n  set nzTarget(value: Element | Window) {\n    this.clearEventListeners();\n    this._target = value || window;\n    this.setTargetEventListeners();\n    this.updatePosition({});\n  }\n\n  private _offsetTop: number;\n\n  @Input()\n  set nzOffsetTop(value: number) {\n    if (typeof value === 'undefined') {\n      return;\n    }\n    this._offsetTop = toNumber(value, null);\n  }\n\n  get nzOffsetTop(): number {\n    return this._offsetTop;\n  }\n\n  private _offsetBottom: number;\n\n  @Input()\n  set nzOffsetBottom(value: number) {\n    if (typeof value === 'undefined') {\n      return;\n    }\n    this._offsetBottom = toNumber(value, null);\n  }\n\n  @Output() nzChange: EventEmitter<boolean> = new EventEmitter();\n\n  constructor(private scrollSrv: NzScrollService, private _el: ElementRef, private cd: ChangeDetectorRef) {\n  }\n\n  ngOnInit(): void {\n    this.timeout = setTimeout(() => {\n      this.setTargetEventListeners();\n      this.updatePosition({});\n    });\n  }\n\n  private setTargetEventListeners(): void {\n    this.clearEventListeners();\n    this.events.forEach((eventName: string) => {\n      this._target.addEventListener(eventName, this.updatePosition, false);\n    });\n  }\n\n  private clearEventListeners(): void {\n    this.events.forEach(eventName => {\n      this._target.removeEventListener(eventName, this.updatePosition, false);\n    });\n  }\n\n  ngOnDestroy(): void {\n    this.clearEventListeners();\n    clearTimeout(this.timeout);\n    (this.updatePosition as any).cancel();\n  }\n\n  private getTargetRect(target: Element | Window | null): ClientRect {\n    return target !== window ?\n      (target as HTMLElement).getBoundingClientRect() :\n      { top: 0, left: 0, bottom: 0 } as ClientRect;\n  }\n\n  getOffset(element: Element, target: Element | Window | null): {\n    top: number;\n    left: number;\n    width: number;\n    height: number;\n  } {\n    const elemRect = element.getBoundingClientRect();\n    const targetRect = this.getTargetRect(target);\n\n    const scrollTop = this.scrollSrv.getScroll(target, true);\n    const scrollLeft = this.scrollSrv.getScroll(target, false);\n\n    const docElem = window.document.body;\n    const clientTop = docElem.clientTop || 0;\n    const clientLeft = docElem.clientLeft || 0;\n\n    return {\n      top   : elemRect.top - targetRect.top + scrollTop - clientTop,\n      left  : elemRect.left - targetRect.left + scrollLeft - clientLeft,\n      width : elemRect.width,\n      height: elemRect.height\n    };\n  }\n\n  private genStyle(affixStyle: {}): string {\n    if (affixStyle == null) {\n      return '';\n    }\n    return Object.keys(affixStyle).map(key => {\n      const val = affixStyle[ key ];\n      return `${key}:${typeof val === 'string' ? val : val + 'px'}`;\n    }).join(';');\n  }\n\n  private setAffixStyle(e: any, affixStyle: {}): void {\n    const originalAffixStyle = this.affixStyle;\n    const isWindow = this._target === window;\n    if (e.type === 'scroll' && originalAffixStyle && affixStyle && isWindow) {\n      return;\n    }\n    if (shallowEqual(originalAffixStyle, affixStyle)) {\n      return;\n    }\n\n    const fixed = !!affixStyle;\n    const wrapEl = this.wrap.nativeElement as HTMLElement;\n    wrapEl.style.cssText = this.genStyle(affixStyle);\n    this.affixStyle = affixStyle;\n    const cls = 'ant-affix';\n    if (fixed) {\n      wrapEl.classList.add(cls);\n    } else {\n      wrapEl.classList.remove(cls);\n    }\n\n    if ((affixStyle && !originalAffixStyle) || (!affixStyle && originalAffixStyle)) {\n      this.nzChange.emit(fixed);\n    }\n  }\n\n  private setPlaceholderStyle(placeholderStyle: {}): void {\n    const originalPlaceholderStyle = this.placeholderStyle;\n    if (shallowEqual(placeholderStyle, originalPlaceholderStyle)) {\n      return;\n    }\n    (this._el.nativeElement as HTMLElement).style.cssText = this.genStyle(placeholderStyle);\n    this.placeholderStyle = placeholderStyle;\n  }\n\n  @throttleByAnimationFrameDecorator()\n  updatePosition(e: any): void {\n    const targetNode = this._target;\n    // Backwards support\n    let offsetTop = this.nzOffsetTop;\n    const scrollTop = this.scrollSrv.getScroll(targetNode, true);\n    const affixNode = this._el.nativeElement as HTMLElement;\n    const elemOffset = this.getOffset(affixNode, targetNode);\n    const elemSize = {\n      width : affixNode.offsetWidth,\n      height: affixNode.offsetHeight\n    };\n    const offsetMode = {\n      top   : false,\n      bottom: false\n    };\n    // Default to `offsetTop=0`.\n    if (typeof offsetTop !== 'number' && typeof this._offsetBottom !== 'number') {\n      offsetMode.top = true;\n      offsetTop = 0;\n    } else {\n      offsetMode.top = typeof offsetTop === 'number';\n      offsetMode.bottom = typeof this._offsetBottom === 'number';\n    }\n    const targetRect = this.getTargetRect(targetNode);\n    const targetInnerHeight =\n            (targetNode as Window).innerHeight || (targetNode as HTMLElement).clientHeight;\n    if (scrollTop > elemOffset.top - (offsetTop as number) && offsetMode.top) {\n      const width = elemOffset.width;\n      const top = targetRect.top + (offsetTop as number);\n      this.setAffixStyle(e, {\n        position : 'fixed',\n        top,\n        left     : targetRect.left + elemOffset.left,\n        maxHeight: `calc(100vh - ${top}px)`,\n        width\n      });\n      this.setPlaceholderStyle({\n        width,\n        height: elemSize.height\n      });\n    } else if (\n      scrollTop < elemOffset.top + elemSize.height + (this._offsetBottom as number) - targetInnerHeight &&\n      offsetMode.bottom\n    ) {\n      const targetBottomOffet = targetNode === window ? 0 : (window.innerHeight - targetRect.bottom);\n      const width = elemOffset.width;\n      this.setAffixStyle(e, {\n        position: 'fixed',\n        bottom  : targetBottomOffet + (this._offsetBottom as number),\n        left    : targetRect.left + elemOffset.left,\n        width\n      });\n      this.setPlaceholderStyle({\n        width,\n        height: elemOffset.height\n      });\n    } else {\n      if (e.type === 'resize' && this.affixStyle && this.affixStyle.position === 'fixed' && affixNode.offsetWidth) {\n        this.setAffixStyle(e, { ...this.affixStyle, width: affixNode.offsetWidth });\n      } else {\n        this.setAffixStyle(e, null);\n      }\n      this.setPlaceholderStyle(null);\n    }\n  }\n\n}\n"]}