ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
120 lines • 15.6 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, __metadata } from "tslib";
import { ChangeDetectionStrategy, ChangeDetectorRef, Component, ElementRef, Injector, Input, NgZone, Renderer2, ViewEncapsulation } from '@angular/core';
import { ActivatedRoute, NavigationEnd, PRIMARY_OUTLET, Router } from '@angular/router';
import { PREFIX } from 'ng-zorro-antd/core/logger';
import { InputBoolean } from 'ng-zorro-antd/core/util';
import { Subject } from 'rxjs';
import { filter, startWith, takeUntil } from 'rxjs/operators';
export class NzBreadCrumbComponent {
constructor(injector, ngZone, cdr, elementRef, renderer) {
this.injector = injector;
this.ngZone = ngZone;
this.cdr = cdr;
this.nzAutoGenerate = false;
this.nzSeparator = '/';
this.nzRouteLabel = 'breadcrumb';
this.nzRouteLabelFn = label => label;
this.breadcrumbs = [];
this.destroy$ = new Subject();
renderer.addClass(elementRef.nativeElement, 'ant-breadcrumb');
}
ngOnInit() {
if (this.nzAutoGenerate) {
this.registerRouterChange();
}
}
ngOnDestroy() {
this.destroy$.next();
this.destroy$.complete();
}
navigate(url, e) {
e.preventDefault();
this.ngZone.run(() => this.injector.get(Router).navigateByUrl(url).then()).then();
}
registerRouterChange() {
try {
const router = this.injector.get(Router);
const activatedRoute = this.injector.get(ActivatedRoute);
router.events
.pipe(filter(e => e instanceof NavigationEnd), takeUntil(this.destroy$), startWith(true) // trigger initial render
)
.subscribe(() => {
this.breadcrumbs = this.getBreadcrumbs(activatedRoute.root);
this.cdr.markForCheck();
});
}
catch (e) {
throw new Error(`${PREFIX} You should import RouterModule if you want to use 'NzAutoGenerate'.`);
}
}
getBreadcrumbs(route, url = '', breadcrumbs = []) {
const children = route.children;
// If there's no sub root, then stop the recurse and returns the generated breadcrumbs.
if (children.length === 0) {
return breadcrumbs;
}
for (const child of children) {
if (child.outlet === PRIMARY_OUTLET) {
// Only parse components in primary router-outlet (in another word, router-outlet without a specific name).
// Parse this layer and generate a breadcrumb item.
const routeUrl = child.snapshot.url
.map(segment => segment.path)
.filter(path => path)
.join('/');
// Do not change nextUrl if routeUrl is falsy. This happens when it's a route lazy loading other modules.
const nextUrl = !!routeUrl ? url + `/${routeUrl}` : url;
const breadcrumbLabel = this.nzRouteLabelFn(child.snapshot.data[this.nzRouteLabel]);
// If have data, go to generate a breadcrumb for it.
if (routeUrl && breadcrumbLabel) {
const breadcrumb = {
label: breadcrumbLabel,
params: child.snapshot.params,
url: nextUrl
};
breadcrumbs.push(breadcrumb);
}
return this.getBreadcrumbs(child, nextUrl, breadcrumbs);
}
}
return breadcrumbs;
}
}
NzBreadCrumbComponent.decorators = [
{ type: Component, args: [{
changeDetection: ChangeDetectionStrategy.OnPush,
encapsulation: ViewEncapsulation.None,
selector: 'nz-breadcrumb',
exportAs: 'nzBreadcrumb',
preserveWhitespaces: false,
template: `
<ng-content></ng-content>
<ng-container *ngIf="nzAutoGenerate && breadcrumbs.length">
<nz-breadcrumb-item *ngFor="let breadcrumb of breadcrumbs">
<a [attr.href]="breadcrumb.url" (click)="navigate(breadcrumb.url, $event)">{{ breadcrumb.label }}</a>
</nz-breadcrumb-item>
</ng-container>
`
},] }
];
NzBreadCrumbComponent.ctorParameters = () => [
{ type: Injector },
{ type: NgZone },
{ type: ChangeDetectorRef },
{ type: ElementRef },
{ type: Renderer2 }
];
NzBreadCrumbComponent.propDecorators = {
nzAutoGenerate: [{ type: Input }],
nzSeparator: [{ type: Input }],
nzRouteLabel: [{ type: Input }],
nzRouteLabelFn: [{ type: Input }]
};
__decorate([
InputBoolean(),
__metadata("design:type", Object)
], NzBreadCrumbComponent.prototype, "nzAutoGenerate", 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 {\n  ChangeDetectionStrategy,\n  ChangeDetectorRef,\n  Component,\n  ElementRef,\n  Injector,\n  Input,\n  NgZone,\n  OnDestroy,\n  OnInit,\n  Renderer2,\n  TemplateRef,\n  ViewEncapsulation\n} from '@angular/core';\nimport { ActivatedRoute, NavigationEnd, Params, PRIMARY_OUTLET, Router } from '@angular/router';\nimport { PREFIX } from 'ng-zorro-antd/core/logger';\nimport { BooleanInput } from 'ng-zorro-antd/core/types';\n\nimport { InputBoolean } from 'ng-zorro-antd/core/util';\nimport { Subject } from 'rxjs';\nimport { filter, startWith, takeUntil } from 'rxjs/operators';\n\nexport interface BreadcrumbOption {\n  label: string;\n  params: Params;\n  url: string;\n}\n\n@Component({\n  changeDetection: ChangeDetectionStrategy.OnPush,\n  encapsulation: ViewEncapsulation.None,\n  selector: 'nz-breadcrumb',\n  exportAs: 'nzBreadcrumb',\n  preserveWhitespaces: false,\n  template: `\n    <ng-content></ng-content>\n    <ng-container *ngIf=\"nzAutoGenerate && breadcrumbs.length\">\n      <nz-breadcrumb-item *ngFor=\"let breadcrumb of breadcrumbs\">\n        <a [attr.href]=\"breadcrumb.url\" (click)=\"navigate(breadcrumb.url, $event)\">{{ breadcrumb.label }}</a>\n      </nz-breadcrumb-item>\n    </ng-container>\n  `\n})\nexport class NzBreadCrumbComponent implements OnInit, OnDestroy {\n  static ngAcceptInputType_nzAutoGenerate: BooleanInput;\n\n  @Input() @InputBoolean() nzAutoGenerate = false;\n  @Input() nzSeparator: string | TemplateRef<void> | null = '/';\n  @Input() nzRouteLabel: string = 'breadcrumb';\n  @Input() nzRouteLabelFn: (label: string) => string = label => label;\n\n  breadcrumbs: BreadcrumbOption[] = [];\n\n  private destroy$ = new Subject<void>();\n\n  constructor(\n    private injector: Injector,\n    private ngZone: NgZone,\n    private cdr: ChangeDetectorRef,\n    elementRef: ElementRef,\n    renderer: Renderer2\n  ) {\n    renderer.addClass(elementRef.nativeElement, 'ant-breadcrumb');\n  }\n\n  ngOnInit(): void {\n    if (this.nzAutoGenerate) {\n      this.registerRouterChange();\n    }\n  }\n\n  ngOnDestroy(): void {\n    this.destroy$.next();\n    this.destroy$.complete();\n  }\n\n  navigate(url: string, e: MouseEvent): void {\n    e.preventDefault();\n\n    this.ngZone.run(() => this.injector.get(Router).navigateByUrl(url).then()).then();\n  }\n\n  private registerRouterChange(): void {\n    try {\n      const router = this.injector.get(Router);\n      const activatedRoute = this.injector.get(ActivatedRoute);\n      router.events\n        .pipe(\n          filter(e => e instanceof NavigationEnd),\n          takeUntil(this.destroy$),\n          startWith(true) // trigger initial render\n        )\n        .subscribe(() => {\n          this.breadcrumbs = this.getBreadcrumbs(activatedRoute.root);\n          this.cdr.markForCheck();\n        });\n    } catch (e) {\n      throw new Error(`${PREFIX} You should import RouterModule if you want to use 'NzAutoGenerate'.`);\n    }\n  }\n\n  private getBreadcrumbs(route: ActivatedRoute, url: string = '', breadcrumbs: BreadcrumbOption[] = []): BreadcrumbOption[] {\n    const children: ActivatedRoute[] = route.children;\n\n    // If there's no sub root, then stop the recurse and returns the generated breadcrumbs.\n    if (children.length === 0) {\n      return breadcrumbs;\n    }\n\n    for (const child of children) {\n      if (child.outlet === PRIMARY_OUTLET) {\n        // Only parse components in primary router-outlet (in another word, router-outlet without a specific name).\n        // Parse this layer and generate a breadcrumb item.\n        const routeUrl: string = child.snapshot.url\n          .map(segment => segment.path)\n          .filter(path => path)\n          .join('/');\n\n        // Do not change nextUrl if routeUrl is falsy. This happens when it's a route lazy loading other modules.\n        const nextUrl = !!routeUrl ? url + `/${routeUrl}` : url;\n        const breadcrumbLabel = this.nzRouteLabelFn(child.snapshot.data[this.nzRouteLabel]);\n\n        // If have data, go to generate a breadcrumb for it.\n        if (routeUrl && breadcrumbLabel) {\n          const breadcrumb: BreadcrumbOption = {\n            label: breadcrumbLabel,\n            params: child.snapshot.params,\n            url: nextUrl\n          };\n          breadcrumbs.push(breadcrumb);\n        }\n\n        return this.getBreadcrumbs(child, nextUrl, breadcrumbs);\n      }\n    }\n\n    return breadcrumbs;\n  }\n}\n"]}