ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
219 lines • 26 kB
JavaScript
/**
* 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
*/
import { __decorate } from "tslib";
import { Platform } from '@angular/cdk/platform';
import { DOCUMENT } from '@angular/common';
import { ChangeDetectionStrategy, ChangeDetectorRef, Component, EventEmitter, Inject, Input, NgZone, Output, Renderer2, ViewChild, ViewEncapsulation } from '@angular/core';
import { fromEvent, Subject } from 'rxjs';
import { takeUntil, throttleTime } from 'rxjs/operators';
import { NzConfigService, WithConfig } from 'ng-zorro-antd/core/config';
import { NzScrollService } from 'ng-zorro-antd/core/services';
import { InputBoolean, InputNumber } from 'ng-zorro-antd/core/util';
import { getOffsetTop } from './util';
const NZ_CONFIG_MODULE_NAME = 'anchor';
const sharpMatcherRegx = /#([^#]+)$/;
export class NzAnchorComponent {
constructor(doc, nzConfigService, scrollSrv, cdr, platform, zone, renderer) {
this.doc = doc;
this.nzConfigService = nzConfigService;
this.scrollSrv = scrollSrv;
this.cdr = cdr;
this.platform = platform;
this.zone = zone;
this.renderer = renderer;
this._nzModuleName = NZ_CONFIG_MODULE_NAME;
this.nzAffix = true;
this.nzShowInkInFixed = false;
this.nzBounds = 5;
this.nzOffsetTop = undefined;
this.nzClick = new EventEmitter();
this.nzScroll = new EventEmitter();
this.visible = false;
this.wrapperStyle = { 'max-height': '100vh' };
this.links = [];
this.animating = false;
this.destroy$ = new Subject();
this.handleScrollTimeoutID = -1;
}
registerLink(link) {
this.links.push(link);
}
unregisterLink(link) {
this.links.splice(this.links.indexOf(link), 1);
}
getContainer() {
return this.container || window;
}
ngAfterViewInit() {
this.registerScrollEvent();
}
ngOnDestroy() {
clearTimeout(this.handleScrollTimeoutID);
this.destroy$.next();
this.destroy$.complete();
}
registerScrollEvent() {
if (!this.platform.isBrowser) {
return;
}
this.destroy$.next();
this.zone.runOutsideAngular(() => {
fromEvent(this.getContainer(), 'scroll')
.pipe(throttleTime(50), takeUntil(this.destroy$))
.subscribe(() => 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(() => this.handleScroll());
}
handleScroll() {
if (typeof document === 'undefined' || this.animating) {
return;
}
const sections = [];
const scope = (this.nzOffsetTop || 0) + this.nzBounds;
this.links.forEach(comp => {
const sharpLinkMatch = sharpMatcherRegx.exec(comp.nzHref.toString());
if (!sharpLinkMatch) {
return;
}
const target = this.doc.getElementById(sharpLinkMatch[1]);
if (target) {
const top = getOffsetTop(target, this.getContainer());
if (top < scope) {
sections.push({
top,
comp
});
}
}
});
this.visible = !!sections.length;
if (!this.visible) {
this.clearActive();
this.cdr.detectChanges();
}
else {
const maxSection = sections.reduce((prev, curr) => (curr.top > prev.top ? curr : prev));
this.handleActive(maxSection.comp);
}
this.setVisible();
}
clearActive() {
this.links.forEach(i => {
i.unsetActive();
});
}
handleActive(comp) {
this.clearActive();
comp.setActive();
const 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);
}
setVisible() {
const visible = this.visible;
const visibleClassname = 'visible';
if (this.ink) {
if (visible) {
this.renderer.addClass(this.ink.nativeElement, visibleClassname);
}
else {
this.renderer.removeClass(this.ink.nativeElement, visibleClassname);
}
}
}
handleScrollTo(linkComp) {
const el = this.doc.querySelector(linkComp.nzHref);
if (!el) {
return;
}
this.animating = true;
const containerScrollTop = this.scrollSrv.getScroll(this.getContainer());
const elOffsetTop = getOffsetTop(el, this.getContainer());
const targetScrollTop = containerScrollTop + elOffsetTop - (this.nzOffsetTop || 0);
this.scrollSrv.scrollTo(this.getContainer(), targetScrollTop, {
callback: () => {
this.animating = false;
this.handleActive(linkComp);
}
});
this.nzClick.emit(linkComp.nzHref);
}
ngOnChanges(changes) {
const { nzOffsetTop, nzContainer } = changes;
if (nzOffsetTop) {
this.wrapperStyle = {
'max-height': `calc(100vh - ${this.nzOffsetTop}px)`
};
}
if (nzContainer) {
const container = this.nzContainer;
this.container = typeof container === 'string' ? this.doc.querySelector(container) : container;
this.registerScrollEvent();
}
}
}
NzAnchorComponent.decorators = [
{ type: Component, args: [{
selector: 'nz-anchor',
exportAs: 'nzAnchor',
preserveWhitespaces: false,
template: `
<nz-affix *ngIf="nzAffix; else content" [nzOffsetTop]="nzOffsetTop" [nzTarget]="container">
<ng-template [ngTemplateOutlet]="content"></ng-template>
</nz-affix>
<ng-template #content>
<div class="ant-anchor-wrapper" [ngStyle]="wrapperStyle">
<div class="ant-anchor" [ngClass]="{ fixed: !nzAffix && !nzShowInkInFixed }">
<div class="ant-anchor-ink">
<div class="ant-anchor-ink-ball" #ink></div>
</div>
<ng-content></ng-content>
</div>
</div>
</ng-template>
`,
encapsulation: ViewEncapsulation.None,
changeDetection: ChangeDetectionStrategy.OnPush
},] }
];
NzAnchorComponent.ctorParameters = () => [
{ type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },
{ type: NzConfigService },
{ type: NzScrollService },
{ type: ChangeDetectorRef },
{ type: Platform },
{ type: NgZone },
{ type: Renderer2 }
];
NzAnchorComponent.propDecorators = {
ink: [{ type: ViewChild, args: ['ink', { static: false },] }],
nzAffix: [{ type: Input }],
nzShowInkInFixed: [{ type: Input }],
nzBounds: [{ type: Input }],
nzOffsetTop: [{ type: Input }],
nzContainer: [{ type: Input }],
nzClick: [{ type: Output }],
nzScroll: [{ type: Output }]
};
__decorate([
InputBoolean()
], NzAnchorComponent.prototype, "nzAffix", void 0);
__decorate([
WithConfig(),
InputBoolean()
], NzAnchorComponent.prototype, "nzShowInkInFixed", void 0);
__decorate([
WithConfig(),
InputNumber()
], NzAnchorComponent.prototype, "nzBounds", void 0);
__decorate([
InputNumber(undefined),
WithConfig()
], NzAnchorComponent.prototype, "nzOffsetTop", void 0);
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* Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE\n */\n\nimport { Platform } from '@angular/cdk/platform';\nimport { DOCUMENT } from '@angular/common';\nimport {\n  AfterViewInit,\n  ChangeDetectionStrategy,\n  ChangeDetectorRef,\n  Component,\n  ElementRef,\n  EventEmitter,\n  Inject,\n  Input,\n  NgZone,\n  OnChanges,\n  OnDestroy,\n  Output,\n  Renderer2,\n  SimpleChanges,\n  ViewChild,\n  ViewEncapsulation\n} from '@angular/core';\nimport { fromEvent, Subject } from 'rxjs';\nimport { takeUntil, throttleTime } from 'rxjs/operators';\n\nimport { NzConfigKey, NzConfigService, WithConfig } from 'ng-zorro-antd/core/config';\nimport { NzScrollService } from 'ng-zorro-antd/core/services';\nimport { BooleanInput, NgStyleInterface, NumberInput, NzSafeAny } from 'ng-zorro-antd/core/types';\nimport { InputBoolean, InputNumber } from 'ng-zorro-antd/core/util';\n\nimport { NzAnchorLinkComponent } from './anchor-link.component';\nimport { getOffsetTop } from './util';\n\ninterface Section {\n  comp: NzAnchorLinkComponent;\n  top: number;\n}\n\nconst NZ_CONFIG_MODULE_NAME: NzConfigKey = 'anchor';\nconst sharpMatcherRegx = /#([^#]+)$/;\n\n@Component({\n  selector: 'nz-anchor',\n  exportAs: 'nzAnchor',\n  preserveWhitespaces: false,\n  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  `,\n  encapsulation: ViewEncapsulation.None,\n  changeDetection: ChangeDetectionStrategy.OnPush\n})\nexport class NzAnchorComponent implements OnDestroy, AfterViewInit, OnChanges {\n  readonly _nzModuleName: NzConfigKey = NZ_CONFIG_MODULE_NAME;\n  static ngAcceptInputType_nzAffix: BooleanInput;\n  static ngAcceptInputType_nzShowInkInFixed: BooleanInput;\n  static ngAcceptInputType_nzBounds: NumberInput;\n  static ngAcceptInputType_nzOffsetTop: NumberInput;\n\n  @ViewChild('ink', { static: false }) private ink!: ElementRef;\n\n  @Input() @InputBoolean() nzAffix = true;\n\n  @Input()\n  @WithConfig()\n  @InputBoolean()\n  nzShowInkInFixed: boolean = false;\n\n  @Input()\n  @WithConfig()\n  @InputNumber()\n  nzBounds: number = 5;\n\n  @Input()\n  @InputNumber(undefined)\n  @WithConfig<number>()\n  nzOffsetTop?: number = undefined;\n\n  @Input() nzContainer?: string | HTMLElement;\n\n  @Output() readonly nzClick = new EventEmitter<string>();\n  @Output() readonly nzScroll = new EventEmitter<NzAnchorLinkComponent>();\n\n  visible = false;\n  wrapperStyle: NgStyleInterface = { 'max-height': '100vh' };\n\n  container?: HTMLElement | Window;\n\n  private links: NzAnchorLinkComponent[] = [];\n  private animating = false;\n  private destroy$ = new Subject();\n  private handleScrollTimeoutID = -1;\n\n  constructor(\n    @Inject(DOCUMENT) private doc: NzSafeAny,\n    public nzConfigService: NzConfigService,\n    private scrollSrv: NzScrollService,\n    private cdr: ChangeDetectorRef,\n    private platform: Platform,\n    private zone: NgZone,\n    private renderer: Renderer2\n  ) {}\n\n  registerLink(link: NzAnchorLinkComponent): void {\n    this.links.push(link);\n  }\n\n  unregisterLink(link: NzAnchorLinkComponent): void {\n    this.links.splice(this.links.indexOf(link), 1);\n  }\n\n  private getContainer(): HTMLElement | Window {\n    return this.container || window;\n  }\n\n  ngAfterViewInit(): void {\n    this.registerScrollEvent();\n  }\n\n  ngOnDestroy(): void {\n    clearTimeout(this.handleScrollTimeoutID);\n    this.destroy$.next();\n    this.destroy$.complete();\n  }\n\n  private registerScrollEvent(): void {\n    if (!this.platform.isBrowser) {\n      return;\n    }\n    this.destroy$.next();\n    this.zone.runOutsideAngular(() => {\n      fromEvent(this.getContainer(), 'scroll')\n        .pipe(throttleTime(50), takeUntil(this.destroy$))\n        .subscribe(() => this.handleScroll());\n    });\n    // Browser would maintain the scrolling position when refreshing.\n    // So we have to delay calculation in avoid of getting a incorrect result.\n    this.handleScrollTimeoutID = setTimeout(() => this.handleScroll());\n  }\n\n  handleScroll(): void {\n    if (typeof document === 'undefined' || this.animating) {\n      return;\n    }\n\n    const sections: Section[] = [];\n    const scope = (this.nzOffsetTop || 0) + this.nzBounds;\n    this.links.forEach(comp => {\n      const sharpLinkMatch = sharpMatcherRegx.exec(comp.nzHref.toString());\n      if (!sharpLinkMatch) {\n        return;\n      }\n      const target = this.doc.getElementById(sharpLinkMatch[1]);\n      if (target) {\n        const top = getOffsetTop(target, this.getContainer());\n        if (top < scope) {\n          sections.push({\n            top,\n            comp\n          });\n        }\n      }\n    });\n\n    this.visible = !!sections.length;\n    if (!this.visible) {\n      this.clearActive();\n      this.cdr.detectChanges();\n    } else {\n      const maxSection = sections.reduce((prev, curr) => (curr.top > prev.top ? curr : prev));\n      this.handleActive(maxSection.comp);\n    }\n    this.setVisible();\n  }\n\n  private clearActive(): void {\n    this.links.forEach(i => {\n      i.unsetActive();\n    });\n  }\n\n  private handleActive(comp: NzAnchorLinkComponent): void {\n    this.clearActive();\n    comp.setActive();\n    const linkNode = comp.getLinkTitleElement();\n    this.ink.nativeElement.style.top = `${linkNode.offsetTop + linkNode.clientHeight / 2 - 4.5}px`;\n    this.visible = true;\n    this.setVisible();\n    this.nzScroll.emit(comp);\n  }\n\n  private setVisible(): void {\n    const visible = this.visible;\n    const visibleClassname = 'visible';\n    if (this.ink) {\n      if (visible) {\n        this.renderer.addClass(this.ink.nativeElement, visibleClassname);\n      } else {\n        this.renderer.removeClass(this.ink.nativeElement, visibleClassname);\n      }\n    }\n  }\n\n  handleScrollTo(linkComp: NzAnchorLinkComponent): void {\n    const el = this.doc.querySelector(linkComp.nzHref);\n    if (!el) {\n      return;\n    }\n\n    this.animating = true;\n    const containerScrollTop = this.scrollSrv.getScroll(this.getContainer());\n    const elOffsetTop = getOffsetTop(el, this.getContainer());\n    const targetScrollTop = containerScrollTop + elOffsetTop - (this.nzOffsetTop || 0);\n    this.scrollSrv.scrollTo(this.getContainer(), targetScrollTop, {\n      callback: () => {\n        this.animating = false;\n        this.handleActive(linkComp);\n      }\n    });\n    this.nzClick.emit(linkComp.nzHref);\n  }\n\n  ngOnChanges(changes: SimpleChanges): void {\n    const { nzOffsetTop, nzContainer } = changes;\n    if (nzOffsetTop) {\n      this.wrapperStyle = {\n        'max-height': `calc(100vh - ${this.nzOffsetTop}px)`\n      };\n    }\n    if (nzContainer) {\n      const container = this.nzContainer;\n      this.container = typeof container === 'string' ? this.doc.querySelector(container) : container;\n      this.registerScrollEvent();\n    }\n  }\n}\n"]}