decePubClient/Services/AppStatusService.cs

using Microsoft.AspNetCore.Components;
using decePubClient.Models;

using Microsoft.JSInterop;

namespace decePubClient.Services;

public class AppStatusService(IJSRuntime jsRuntime)
{
		readonly IJSInProcessRuntime JsSyncRuntime = (IJSInProcessRuntime)jsRuntime;

		public async ValueTask<bool> IsOnline(CancellationToken cancellationToken = default) =>
			await jsRuntime.InvokeAsync<bool>("isOnline", cancellationToken);

		public string Language() => JsSyncRuntime.Invoke<string>("getLanguage");

		public void SetAppBadge(int counter) => JsSyncRuntime.InvokeVoid("setAppBadge", counter);

		public void ClearAppBadge() => JsSyncRuntime.InvokeVoid("clearAppBadge");

		// wwwroot/js/theme.js
		public void ApplyTheme(PageSettings pageSettings) => JsSyncRuntime.InvokeVoid("neoTheme.apply", pageSettings);

		public bool IsDarkTheme() => JsSyncRuntime.Invoke<bool>("neoTheme.isDark");

		public bool IsMobileMedia() => JsSyncRuntime.Invoke<bool>("isMobileMedia");

		// whether the navigation being decided came from the Back (or Forward) button
		public bool TookBack() => JsSyncRuntime.Invoke<bool>("tookBack");

		// whether the pointer can hover (a mouse); a touch screen can't, so what shows on hover there opens on a tap
		public bool CanHover() => JsSyncRuntime.Invoke<bool>("canHover");

		// read once: a card asks it for each gifv it shows
		bool? reducedMotion;

		public bool PrefersReducedMotion() => reducedMotion ??= JsSyncRuntime.Invoke<bool>("prefersReducedMotion");

		// puts the text on the clipboard; false when the browser refused it, which main.js reports through logFromJs
		public async ValueTask<bool> CopyText(string text, CancellationToken cancellationToken = default) =>
			await jsRuntime.InvokeAsync<bool>("copyText", cancellationToken, text);

		// a sideways-scrolling strip of tabs shows its selected tab
		public void RevealActive(ElementReference strip) => JsSyncRuntime.InvokeVoid("revealActive", strip);
}