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* Copyright (c) Siemens 2016 - 2025
* SPDX-License-Identifier: MIT
*/
import { Portal } from '@angular/cdk/portal';
import { Injectable, signal } from '@angular/core';
import { BehaviorSubject, EMPTY, Observable, Subject } from 'rxjs';
@Injectable({
providedIn: 'root'
})
export class SiSidePanelService {
private contentSubject = new BehaviorSubject<Portal<any> | undefined>(undefined);
/** @internal */
readonly content$ = this.contentSubject.asObservable();
private openSubject = new BehaviorSubject<boolean>(false);
/**
* Emits on side panel is open or close.
*
* @defaultValue this.openSubject.asObservable()
*/
readonly isOpen$ = this.openSubject.asObservable();
private tempContentSubject = new BehaviorSubject<Portal<any> | undefined>(undefined);
/** @internal */
readonly tempContent$ = this.tempContentSubject.asObservable();
private tempContentClosed?: Subject<void>;
/** @internal */
readonly enableMobile = signal(false);
/** @internal */
readonly collapsible = signal(false);
private fullscreenSubject = new BehaviorSubject<boolean>(false);
/**
* Emits when fullscreen overlay mode is toggled.
*/
readonly isFullscreen$ = this.fullscreenSubject.asObservable();
/** Set or update displayed content. */
setSidePanelContent(portal: Portal<any> | undefined): void {
this.contentSubject.next(portal);
}
/** Open side panel. */
open(): void {
this.hideTemporaryContent();
this.openSubject.next(true);
}
/** Close side panel. */
close(): void {
Iif (this.hideTemporaryContent()) {
return;
}
this.openSubject.next(false);
}
/** Toggle side panel open/close. */
toggle(): void {
this.hideTemporaryContent();
this.openSubject.next(!this.openSubject.value);
}
/** Indicate is side panel open. */
isOpen(): boolean {
return this.openSubject.value;
}
/** Toggle fullscreen overlay mode. */
toggleFullscreen(): void {
this.fullscreenSubject.next(!this.fullscreenSubject.value);
}
/** Set fullscreen overlay mode. */
setFullscreen(fullscreen: boolean): void {
this.fullscreenSubject.next(fullscreen);
}
/** Indicate if side panel is in fullscreen overlay mode. */
isFullscreen(): boolean {
return this.fullscreenSubject.value;
}
/**
* Indicate that the side panel is open with temporary content.
*/
isTemporaryOpen(): boolean {
return !!this.tempContentSubject.value;
}
/** Show side panel temporary content, opening the side panel when necessary. */
showTemporaryContent(portal: Portal<any> | undefined): Observable<void> {
this.hideTemporaryContent();
this.tempContentSubject.next(portal);
if (portal) {
this.tempContentClosed = new Subject();
return this.tempContentClosed.asObservable();
}
return EMPTY;
}
/** Hide side panel temporary content, reverting to state before showing temporary content. */
hideTemporaryContent(): boolean {
if (!this.isTemporaryOpen()) {
return false;
}
if (this.tempContentClosed) {
const sub = this.tempContentClosed;
this.tempContentClosed = undefined;
sub.next();
sub.complete();
}
this.tempContentSubject.next(undefined);
return true;
}
}
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