ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
195 lines (189 loc) • 10.1 kB
JavaScript
import { __esDecorate, __runInitializers } from 'tslib';
import { Directionality } from '@angular/cdk/bidi';
import { normalizePassiveListenerOptions, Platform } from '@angular/cdk/platform';
import { NgTemplateOutlet } from '@angular/common';
import * as i0 from '@angular/core';
import { inject, NgZone, ChangeDetectorRef, DestroyRef, EventEmitter, DOCUMENT, numberAttribute, ViewChild, Output, Input, ViewEncapsulation, ChangeDetectionStrategy, Component, NgModule } from '@angular/core';
import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
import { Subject, Subscription } from 'rxjs';
import { debounceTime, takeUntil } from 'rxjs/operators';
import { fadeMotion } from 'ng-zorro-antd/core/animation';
import { WithConfig, NzConfigService } from 'ng-zorro-antd/core/config';
import { NzScrollService } from 'ng-zorro-antd/core/services';
import { fromEventOutsideAngular } from 'ng-zorro-antd/core/util';
import * as i1 from 'ng-zorro-antd/icon';
import { NzIconModule } from 'ng-zorro-antd/icon';
const NZ_CONFIG_MODULE_NAME = 'backTop';
const passiveEventListenerOptions = normalizePassiveListenerOptions({ passive: true });
/**
* @deprecated Will be removed in v21. It is recommended to use `<nz-float-button-top>` instead.
*/
let NzBackTopComponent = (() => {
let _nzVisibilityHeight_decorators;
let _nzVisibilityHeight_initializers = [];
let _nzVisibilityHeight_extraInitializers = [];
return class NzBackTopComponent {
static {
const _metadata = typeof Symbol === "function" && Symbol.metadata ? Object.create(null) : void 0;
_nzVisibilityHeight_decorators = [WithConfig()];
__esDecorate(null, null, _nzVisibilityHeight_decorators, { kind: "field", name: "nzVisibilityHeight", static: false, private: false, access: { has: obj => "nzVisibilityHeight" in obj, get: obj => obj.nzVisibilityHeight, set: (obj, value) => { obj.nzVisibilityHeight = value; } }, metadata: _metadata }, _nzVisibilityHeight_initializers, _nzVisibilityHeight_extraInitializers);
if (_metadata) Object.defineProperty(this, Symbol.metadata, { enumerable: true, configurable: true, writable: true, value: _metadata });
}
nzConfigService = inject(NzConfigService);
scrollSrv = inject(NzScrollService);
platform = inject(Platform);
zone = inject(NgZone);
cdr = inject(ChangeDetectorRef);
directionality = inject(Directionality);
destroyRef = inject(DestroyRef);
_nzModuleName = NZ_CONFIG_MODULE_NAME;
scrollListenerDestroy$ = new Subject();
target = null;
visible = false;
dir = this.directionality.value || 'ltr';
nzTemplate;
nzVisibilityHeight = __runInitializers(this, _nzVisibilityHeight_initializers, 400);
nzTarget = __runInitializers(this, _nzVisibilityHeight_extraInitializers);
nzDuration = 450;
nzClick = new EventEmitter();
set backTop(backTop) {
if (backTop) {
this.backTopClickSubscription.unsubscribe();
this.backTopClickSubscription = fromEventOutsideAngular(backTop.nativeElement, 'click')
.pipe(takeUntilDestroyed(this.destroyRef))
.subscribe(() => {
this.scrollSrv.scrollTo(this.getTarget(), 0, { duration: this.nzDuration });
if (this.nzClick.observers.length) {
this.zone.run(() => this.nzClick.emit(true));
}
});
}
}
backTopClickSubscription = Subscription.EMPTY;
doc = inject(DOCUMENT);
constructor() {
this.destroyRef.onDestroy(() => {
this.scrollListenerDestroy$.next(true);
this.scrollListenerDestroy$.complete();
});
}
ngOnInit() {
this.registerScrollEvent();
this.directionality.change?.pipe(takeUntilDestroyed(this.destroyRef)).subscribe((direction) => {
this.dir = direction;
this.cdr.detectChanges();
});
this.dir = this.directionality.value;
}
getTarget() {
return this.target || window;
}
handleScroll() {
const newVisible = this.scrollSrv.getScroll(this.getTarget()) > this.nzVisibilityHeight;
if (this.visible !== newVisible) {
this.visible = newVisible;
this.cdr.detectChanges();
}
}
registerScrollEvent() {
if (!this.platform.isBrowser) {
return;
}
this.scrollListenerDestroy$.next(true);
this.handleScroll();
fromEventOutsideAngular(this.getTarget(), 'scroll', passiveEventListenerOptions)
.pipe(debounceTime(50), takeUntil(this.scrollListenerDestroy$))
.subscribe(() => this.handleScroll());
}
ngOnChanges(changes) {
const { nzTarget } = changes;
if (nzTarget) {
this.target = typeof this.nzTarget === 'string' ? this.doc.querySelector(this.nzTarget) : this.nzTarget;
this.registerScrollEvent();
}
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "20.0.0", ngImport: i0, type: NzBackTopComponent, deps: [], target: i0.ɵɵFactoryTarget.Component });
static ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "17.0.0", version: "20.0.0", type: NzBackTopComponent, isStandalone: true, selector: "nz-back-top", inputs: { nzTemplate: "nzTemplate", nzVisibilityHeight: ["nzVisibilityHeight", "nzVisibilityHeight", numberAttribute], nzTarget: "nzTarget", nzDuration: ["nzDuration", "nzDuration", numberAttribute] }, outputs: { nzClick: "nzClick" }, viewQueries: [{ propertyName: "backTop", first: true, predicate: ["backTop"], descendants: true }], exportAs: ["nzBackTop"], usesOnChanges: true, ngImport: i0, template: `
(visible) {
<div #backTop class="ant-back-top" [class.ant-back-top-rtl]="dir === 'rtl'" >
<ng-template #defaultContent>
<div class="ant-back-top-content">
<div class="ant-back-top-icon">
<nz-icon nzType="vertical-align-top" />
</div>
</div>
</ng-template>
<ng-template [ngTemplateOutlet]="nzTemplate || defaultContent"></ng-template>
</div>
}
`, isInline: true, dependencies: [{ kind: "directive", type: NgTemplateOutlet, selector: "[ngTemplateOutlet]", inputs: ["ngTemplateOutletContext", "ngTemplateOutlet", "ngTemplateOutletInjector"] }, { kind: "ngmodule", type: NzIconModule }, { kind: "directive", type: i1.NzIconDirective, selector: "nz-icon,[nz-icon]", inputs: ["nzSpin", "nzRotate", "nzType", "nzTheme", "nzTwotoneColor", "nzIconfont"], exportAs: ["nzIcon"] }], animations: [fadeMotion], changeDetection: i0.ChangeDetectionStrategy.OnPush, encapsulation: i0.ViewEncapsulation.None });
};
})();
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "20.0.0", ngImport: i0, type: NzBackTopComponent, decorators: [{
type: Component,
args: [{
selector: 'nz-back-top',
exportAs: 'nzBackTop',
animations: [fadeMotion],
imports: [NgTemplateOutlet, NzIconModule],
template: `
(visible) {
<div #backTop class="ant-back-top" [class.ant-back-top-rtl]="dir === 'rtl'" >
<ng-template #defaultContent>
<div class="ant-back-top-content">
<div class="ant-back-top-icon">
<nz-icon nzType="vertical-align-top" />
</div>
</div>
</ng-template>
<ng-template [ngTemplateOutlet]="nzTemplate || defaultContent"></ng-template>
</div>
}
`,
changeDetection: ChangeDetectionStrategy.OnPush,
encapsulation: ViewEncapsulation.None
}]
}], ctorParameters: () => [], propDecorators: { nzTemplate: [{
type: Input
}], nzVisibilityHeight: [{
type: Input,
args: [{ transform: numberAttribute }]
}], nzTarget: [{
type: Input
}], nzDuration: [{
type: Input,
args: [{ transform: numberAttribute }]
}], nzClick: [{
type: Output
}], backTop: [{
type: ViewChild,
args: ['backTop', { static: false }]
}] } });
/**
* 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.
*/
class NzBackTopModule {
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "20.0.0", ngImport: i0, type: NzBackTopModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });
static ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: "14.0.0", version: "20.0.0", ngImport: i0, type: NzBackTopModule, imports: [NzBackTopComponent], exports: [NzBackTopComponent] });
static ɵinj = i0.ɵɵngDeclareInjector({ minVersion: "12.0.0", version: "20.0.0", ngImport: i0, type: NzBackTopModule, imports: [NzBackTopComponent] });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "20.0.0", ngImport: i0, type: NzBackTopModule, decorators: [{
type: NgModule,
args: [{
exports: [NzBackTopComponent],
imports: [NzBackTopComponent]
}]
}] });
/**
* 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
*/
/**
* Generated bundle index. Do not edit.
*/
export { NzBackTopComponent, NzBackTopModule };
//# sourceMappingURL=ng-zorro-antd-back-top.mjs.map