@ng-bootstrap/ng-bootstrap
Version:
Angular powered Bootstrap
126 lines • 16.5 kB
JavaScript
import { ChangeDetectionStrategy, ChangeDetectorRef, Component, Directive, ElementRef, Input, NgZone, ViewChildren, ViewEncapsulation } from '@angular/core';
import { distinctUntilChanged, skip, startWith, takeUntil } from 'rxjs/operators';
import { ngbNavFadeInTransition, ngbNavFadeOutTransition } from './nav-transition';
import { ngbRunTransition } from '../util/transition/ngbTransition';
export class NgbNavPane {
constructor(elRef) {
this.elRef = elRef;
}
}
NgbNavPane.decorators = [
{ type: Directive, args: [{
selector: '[ngbNavPane]',
host: {
'[id]': 'item.panelDomId',
'class': 'tab-pane',
'[class.fade]': 'nav.animation',
'[attr.role]': 'role ? role : nav.roles ? "tabpanel" : undefined',
'[attr.aria-labelledby]': 'item.domId'
}
},] }
];
NgbNavPane.ctorParameters = () => [
{ type: ElementRef }
];
NgbNavPane.propDecorators = {
item: [{ type: Input }],
nav: [{ type: Input }],
role: [{ type: Input }]
};
/**
* The outlet where currently active nav content will be displayed.
*
* @since 5.2.0
*/
export class NgbNavOutlet {
constructor(_cd, _ngZone) {
this._cd = _cd;
this._ngZone = _ngZone;
this._activePane = null;
}
isPanelTransitioning(item) { var _a; return ((_a = this._activePane) === null || _a === void 0 ? void 0 : _a.item) === item; }
ngAfterViewInit() {
var _a;
// initial display
this._updateActivePane();
// this will be emitted for all 3 types of nav changes: .select(), [activeId] or (click)
this.nav.navItemChange$
.pipe(takeUntil(this.nav.destroy$), startWith(((_a = this._activePane) === null || _a === void 0 ? void 0 : _a.item) || null), distinctUntilChanged(), skip(1))
.subscribe(nextItem => {
const options = { animation: this.nav.animation, runningTransition: 'stop' };
// next panel we're switching to will only appear in DOM after the change detection is done
// and `this._panes` will be updated
this._cd.detectChanges();
// fading out
if (this._activePane) {
ngbRunTransition(this._ngZone, this._activePane.elRef.nativeElement, ngbNavFadeOutTransition, options)
.subscribe(() => {
var _a;
const activeItem = (_a = this._activePane) === null || _a === void 0 ? void 0 : _a.item;
this._activePane = this._getPaneForItem(nextItem);
// mark for check when transition finishes as outlet or parent containers might be OnPush
// without this the panes that have "faded out" will stay in DOM
this._cd.markForCheck();
// fading in
if (this._activePane) {
// we have to add the '.active' class before running the transition,
// because it should be in place before `ngbRunTransition` does `reflow()`
this._activePane.elRef.nativeElement.classList.add('active');
ngbRunTransition(this._ngZone, this._activePane.elRef.nativeElement, ngbNavFadeInTransition, options)
.subscribe(() => {
if (nextItem) {
nextItem.shown.emit();
this.nav.shown.emit(nextItem.id);
}
});
}
if (activeItem) {
activeItem.hidden.emit();
this.nav.hidden.emit(activeItem.id);
}
});
}
else {
this._updateActivePane();
}
});
}
_updateActivePane() {
var _a, _b;
this._activePane = this._getActivePane();
(_a = this._activePane) === null || _a === void 0 ? void 0 : _a.elRef.nativeElement.classList.add('show');
(_b = this._activePane) === null || _b === void 0 ? void 0 : _b.elRef.nativeElement.classList.add('active');
}
_getPaneForItem(item) {
return this._panes && this._panes.find(pane => pane.item === item) || null;
}
_getActivePane() {
return this._panes && this._panes.find(pane => pane.item.active) || null;
}
}
NgbNavOutlet.decorators = [
{ type: Component, args: [{
selector: '[ngbNavOutlet]',
host: { '[class.tab-content]': 'true' },
encapsulation: ViewEncapsulation.None,
changeDetection: ChangeDetectionStrategy.OnPush,
template: `
<ng-template ngFor let-item [ngForOf]="nav.items">
<div ngbNavPane *ngIf="item.isPanelInDom() || isPanelTransitioning(item)" [item]="item" [nav]="nav" [role]="paneRole">
<ng-template [ngTemplateOutlet]="item.contentTpl?.templateRef || null"
[ngTemplateOutletContext]="{$implicit: item.active || isPanelTransitioning(item)}"></ng-template>
</div>
</ng-template>
`
},] }
];
NgbNavOutlet.ctorParameters = () => [
{ type: ChangeDetectorRef },
{ type: NgZone }
];
NgbNavOutlet.propDecorators = {
_panes: [{ type: ViewChildren, args: [NgbNavPane,] }],
paneRole: [{ type: Input }],
nav: [{ type: Input, args: ['ngbNavOutlet',] }]
};
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role : nav.roles ? \"tabpanel\" : undefined',\n    '[attr.aria-labelledby]': 'item.domId'\n  }\n})\nexport class NgbNavPane {\n  @Input() item: NgbNavItem;\n  @Input() nav: NgbNav;\n  @Input() role: string;\n\n  constructor(public elRef: ElementRef<HTMLElement>) {}\n}\n\n/**\n * The outlet where currently active nav content will be displayed.\n *\n * @since 5.2.0\n */\n@Component({\n  selector: '[ngbNavOutlet]',\n  host: {'[class.tab-content]': 'true'},\n  encapsulation: ViewEncapsulation.None,\n  changeDetection: ChangeDetectionStrategy.OnPush,\n  template: `\n    <ng-template ngFor let-item [ngForOf]=\"nav.items\">\n      <div ngbNavPane *ngIf=\"item.isPanelInDom() || isPanelTransitioning(item)\" [item]=\"item\" [nav]=\"nav\" [role]=\"paneRole\">\n        <ng-template [ngTemplateOutlet]=\"item.contentTpl?.templateRef || null\"\n                     [ngTemplateOutletContext]=\"{$implicit: item.active || isPanelTransitioning(item)}\"></ng-template>\n      </div>\n    </ng-template>\n  `\n})\nexport class NgbNavOutlet implements AfterViewInit {\n  private _activePane: NgbNavPane | null = null;\n\n  @ViewChildren(NgbNavPane) private _panes: QueryList<NgbNavPane>;\n\n  /**\n   * A role to set on the nav pane\n   */\n  @Input() paneRole;\n\n  /**\n   * Reference to the `NgbNav`\n   */\n  @Input('ngbNavOutlet') nav: NgbNav;\n\n  constructor(private _cd: ChangeDetectorRef, private _ngZone: NgZone) {}\n\n  isPanelTransitioning(item: NgbNavItem) { return this._activePane ?.item === item; }\n\n  ngAfterViewInit() {\n    // initial display\n    this._updateActivePane();\n\n    // this will be emitted for all 3 types of nav changes: .select(), [activeId] or (click)\n    this.nav.navItemChange$\n      .pipe(takeUntil(this.nav.destroy$), startWith(this._activePane ?.item || null), distinctUntilChanged(), skip(1))\n      .subscribe(nextItem => {\n      const options: NgbTransitionOptions<undefined> = {animation: this.nav.animation, runningTransition: 'stop'};\n\n      // next panel we're switching to will only appear in DOM after the change detection is done\n      // and `this._panes` will be updated\n      this._cd.detectChanges();\n\n      // fading out\n      if (this._activePane) {\n        ngbRunTransition(this._ngZone, this._activePane.elRef.nativeElement, ngbNavFadeOutTransition, options)\n            .subscribe(() => {\n              const activeItem = this._activePane ?.item;\n              this._activePane = this._getPaneForItem(nextItem);\n\n              // mark for check when transition finishes as outlet or parent containers might be OnPush\n              // without this the panes that have \"faded out\" will stay in DOM\n              this._cd.markForCheck();\n\n              // fading in\n              if (this._activePane) {\n                // we have to add the '.active' class before running the transition,\n                // because it should be in place before `ngbRunTransition` does `reflow()`\n                this._activePane.elRef.nativeElement.classList.add('active');\n                ngbRunTransition(this._ngZone, this._activePane.elRef.nativeElement, ngbNavFadeInTransition, options)\n                    .subscribe(() => {\n                      if (nextItem) {\n                        nextItem.shown.emit();\n                        this.nav.shown.emit(nextItem.id);\n                      }\n                    });\n              }\n\n              if (activeItem) {\n                activeItem.hidden.emit();\n                this.nav.hidden.emit(activeItem.id);\n              }\n            });\n      } else {\n        this._updateActivePane();\n      }\n      });\n  }\n\n  private _updateActivePane() {\n    this._activePane = this._getActivePane();\n    this._activePane ?.elRef.nativeElement.classList.add('show');\n    this._activePane ?.elRef.nativeElement.classList.add('active');\n  }\n\n  private _getPaneForItem(item: NgbNavItem | null) {\n    return this._panes && this._panes.find(pane => pane.item === item) || null;\n  }\n\n  private _getActivePane(): NgbNavPane | null {\n    return this._panes && this._panes.find(pane => pane.item.active) || null;\n  }\n}\n"]}