ScannerPilot: Beginn der Programmierung, Artikel in IndexedDB schreiben, Scanner implementieren, Abfrage aBezeichnung aus Artikel-EAN bei Start Inventur

This commit is contained in:
Christopher Meinhold 2025-09-29 21:52:37 +02:00
parent 1a7073fce9
commit db22564f06
28 changed files with 1054 additions and 0 deletions

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Microsoft Visual Studio Solution File, Format Version 12.00
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MinimumVisualStudioVersion = 10.0.40219.1
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EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
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{5ACB6458-5E15-46D4-A7FA-E0CB8CB65A48}.Release|Any CPU.Build.0 = Release|Any CPU
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<Router AppAssembly="@typeof(App).Assembly">
<Found Context="routeData">
<RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
<FocusOnNavigate RouteData="@routeData" Selector="h1" />
</Found>
<NotFound>
<PageTitle>Not found</PageTitle>
<LayoutView Layout="@typeof(MainLayout)">
<p role="alert">Sorry, there's nothing at this address.</p>
</LayoutView>
</NotFound>
</Router>

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using System.ComponentModel.DataAnnotations;
namespace ScannerPilot.Data
{
public class Artikel
{
[Key]
public int ArtikelVariantenId { get; set; }
public string Barcode { get; set; }
public string Nummer { get; set; }
public string Bezeichnung { get; set; }
public string Mengeneinheit { get; set; }
public double NettoGewicht { get; set; }
public string Variante { get; set; }
}
}

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using System.ComponentModel.DataAnnotations;
namespace ScannerPilot.Data
{
public class Inventur
{
[Key]
public string Key { get; set; }
[Required]
public string ArtikelNummer { get; set; }
public string Variante { get; set; }
public decimal Menge { get; set; }
}
}

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using Blazor.IndexedDB;
using Microsoft.JSInterop;
namespace ScannerPilot.Data
{
public class ScannerPilotDB : IndexedDb
{
public ScannerPilotDB(JSRuntime jSRuntime, string name, int version) : base(jSRuntime, name, version)
{
}
public IndexedSet<Artikel> ArtikelListe { get; set; }
public IndexedSet<Inventur> InventurListe { get; set; }
}
}

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@inherits LayoutComponentBase
<div class="page">
<div class="sidebar">
<NavMenu />
</div>
<main>
<div class="top-row px-4">
<a href="https://learn.microsoft.com/aspnet/core/" target="_blank">About</a>
</div>
<article class="content px-4">
@Body
</article>
</main>
</div>

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.page {
position: relative;
display: flex;
flex-direction: column;
}
main {
flex: 1;
}
.sidebar {
background-image: linear-gradient(180deg, rgb(5, 39, 103) 0%, #3a0647 70%);
}
.top-row {
background-color: #f7f7f7;
border-bottom: 1px solid #d6d5d5;
justify-content: flex-end;
height: 3.5rem;
display: flex;
align-items: center;
}
.top-row ::deep a, .top-row ::deep .btn-link {
white-space: nowrap;
margin-left: 1.5rem;
text-decoration: none;
}
.top-row ::deep a:hover, .top-row ::deep .btn-link:hover {
text-decoration: underline;
}
.top-row ::deep a:first-child {
overflow: hidden;
text-overflow: ellipsis;
}
@media (max-width: 640.98px) {
.top-row {
justify-content: space-between;
}
.top-row ::deep a, .top-row ::deep .btn-link {
margin-left: 0;
}
}
@media (min-width: 641px) {
.page {
flex-direction: row;
}
.sidebar {
width: 250px;
height: 100vh;
position: sticky;
top: 0;
}
.top-row {
position: sticky;
top: 0;
z-index: 1;
}
.top-row.auth ::deep a:first-child {
flex: 1;
text-align: right;
width: 0;
}
.top-row, article {
padding-left: 2rem !important;
padding-right: 1.5rem !important;
}
}

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<div class="top-row ps-3 navbar navbar-dark">
<div class="container-fluid">
<a class="navbar-brand" href="">ScannerPilot</a>
<button title="Navigation menu" class="navbar-toggler" @onclick="ToggleNavMenu">
<span class="navbar-toggler-icon"></span>
</button>
</div>
</div>
<div class="@NavMenuCssClass nav-scrollable" @onclick="ToggleNavMenu">
<nav class="flex-column">
<div class="nav-item px-3">
<NavLink class="nav-link" href="" Match="NavLinkMatch.All">
<span class="bi bi-house-door-fill-nav-menu" aria-hidden="true"></span> Home
</NavLink>
</div>
<div class="nav-item px-3">
<NavLink class="nav-link" href="inventur">
<span class="bi bi-plus-square-fill-nav-menu" aria-hidden="true"></span> Inventur
</NavLink>
</div>
<div class="nav-item px-3">
<NavLink class="nav-link" href="einstellungen">
<span class="bi bi-gear-fill-nav-menu" aria-hidden="true"></span> Einstellungen
</NavLink>
</div>
</nav>
</div>
@code {
private bool collapseNavMenu = true;
private string? NavMenuCssClass => collapseNavMenu ? "collapse" : null;
private void ToggleNavMenu()
{
collapseNavMenu = !collapseNavMenu;
}
}

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.navbar-toggler {
background-color: rgba(255, 255, 255, 0.1);
}
.top-row {
height: 3.5rem;
background-color: rgba(0,0,0,0.4);
}
.navbar-brand {
font-size: 1.1rem;
}
.bi {
display: inline-block;
position: relative;
width: 1.25rem;
height: 1.25rem;
margin-right: 0.75rem;
top: -1px;
background-size: cover;
}
.bi-house-door-fill-nav-menu {
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='white' class='bi bi-house-door-fill' viewBox='0 0 16 16'%3E%3Cpath d='M6.5 14.5v-3.505c0-.245.25-.495.5-.495h2c.25 0 .5.25.5.5v3.5a.5.5 0 0 0 .5.5h4a.5.5 0 0 0 .5-.5v-7a.5.5 0 0 0-.146-.354L13 5.793V2.5a.5.5 0 0 0-.5-.5h-1a.5.5 0 0 0-.5.5v1.293L8.354 1.146a.5.5 0 0 0-.708 0l-6 6A.5.5 0 0 0 1.5 7.5v7a.5.5 0 0 0 .5.5h4a.5.5 0 0 0 .5-.5Z'/%3E%3C/svg%3E");
}
.bi-plus-square-fill-nav-menu {
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='white' class='bi bi-plus-square-fill' viewBox='0 0 16 16'%3E%3Cpath d='M2 0a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V2a2 2 0 0 0-2-2H2zm6.5 4.5v3h3a.5.5 0 0 1 0 1h-3v3a.5.5 0 0 1-1 0v-3h-3a.5.5 0 0 1 0-1h3v-3a.5.5 0 0 1 1 0z'/%3E%3C/svg%3E");
}
.bi-list-nested-nav-menu {
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='white' class='bi bi-list-nested' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M4.5 11.5A.5.5 0 0 1 5 11h10a.5.5 0 0 1 0 1H5a.5.5 0 0 1-.5-.5zm-2-4A.5.5 0 0 1 3 7h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5zm-2-4A.5.5 0 0 1 1 3h10a.5.5 0 0 1 0 1H1a.5.5 0 0 1-.5-.5z'/%3E%3C/svg%3E");
}
.nav-item {
font-size: 0.9rem;
padding-bottom: 0.5rem;
}
.nav-item:first-of-type {
padding-top: 1rem;
}
.nav-item:last-of-type {
padding-bottom: 1rem;
}
.nav-item ::deep a {
color: #d7d7d7;
border-radius: 4px;
height: 3rem;
display: flex;
align-items: center;
line-height: 3rem;
}
.nav-item ::deep a.active {
background-color: rgba(255,255,255,0.37);
color: white;
}
.nav-item ::deep a:hover {
background-color: rgba(255,255,255,0.1);
color: white;
}
@media (min-width: 641px) {
.navbar-toggler {
display: none;
}
.collapse {
/* Never collapse the sidebar for wide screens */
display: block;
}
.nav-scrollable {
/* Allow sidebar to scroll for tall menus */
height: calc(100vh - 3.5rem);
overflow-y: auto;
}
}

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@page "/einstellungen"
@inject IJSRuntime JS
<h3>Einstellungen</h3>
<div class="card" style="max-width:480px">
<div class="card-body">
<div class="mb-3">
<label class="form-label">Filial-ID</label>
<input class="form-control"
placeholder="z. B. 202"
@bind="filialId"
@onkeydown="HandleKeyDown"
autofocus />
<div class="form-text">Wird lokal im Browser gespeichert.</div>
</div>
<div class="d-flex gap-2">
<button class="btn btn-primary" @onclick="Save">Speichern</button>
<button class="btn btn-outline-secondary" @onclick="Reload">Neu laden</button>
<button class="btn btn-outline-danger" @onclick="Clear">Löschen</button>
</div>
@if (!string.IsNullOrEmpty(status))
{
<p class="mt-2" style="color:@(ok ? "green" : "crimson")">@status</p>
}
</div>
</div>
@code {
private const string Key = "scannerpilot.filialId";
private string? filialId;
private string? status;
private bool ok;
protected override async Task OnInitializedAsync() => await Reload();
private async Task Reload()
{
filialId = await JS.InvokeAsync<string?>("localStorage.getItem", Key);
status = filialId is null ? "Noch keine Filial-ID hinterlegt." : $"Aktuelle Filial-ID: {filialId}";
ok = filialId is not null;
StateHasChanged();
}
private async Task Save()
{
if (string.IsNullOrWhiteSpace(filialId))
{
ok = false; status = "Bitte eine Filial-ID eingeben.";
return;
}
await JS.InvokeVoidAsync("localStorage.setItem", Key, filialId.Trim());
ok = true; status = $"Gespeichert: {filialId.Trim()}";
}
private async Task Clear()
{
await JS.InvokeVoidAsync("localStorage.removeItem", Key);
filialId = null;
ok = true; status = "Filial-ID entfernt.";
}
private async Task HandleKeyDown(KeyboardEventArgs e)
{
if (e.Key == "Enter") await Save();
}
}

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@page "/"
@using Blazor.IndexedDB
@using ScannerPilot.Data
@inject IIndexedDbFactory DbFactory
@inject IJSRuntime JS
@inject NavigationManager Nav
<PageTitle>Startseite</PageTitle>
<h3>ScannerPilot</h3>
Willkommen bei der ScannerPilot-App <br />
ScannerTool für die Werksverkäufe.

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@page "/inventur"
@inject NavigationManager Nav
<h3>Inventur</h3>
<div style="display:grid;gap:.6rem;max-width:320px">
<button class="inventur-btn" @onclick='() => Nav.NavigateTo("/inventur/vorbereiten")'>1. Vorbereiten</button>
<button class="inventur-btn" @onclick='() => Nav.NavigateTo("/inventur/starten")'>2. Starten</button>
<button class="inventur-btn" @onclick='() => Nav.NavigateTo("/inventur/liste")'>3. Liste</button>
<button class="inventur-btn" @onclick='() => Nav.NavigateTo("/inventur/abschliessen")'>4. Abschließen</button>
</div>
<style>
.inventur-btn {
height: 60px;
font-size: 18px;
width: 100%;
}
</style>
@code {
protected override void OnAfterRender(bool firstRender)
{
if (firstRender)
{
// Event registrieren
_ = JS.InvokeVoidAsync("initMenuHotkeys", DotNetObjectReference.Create(this));
}
}
[Inject] IJSRuntime JS { get; set; } = default!;
[JSInvokable]
public void HandleKey(string key)
{
switch (key)
{
case "1": Nav.NavigateTo("/inventur/vorbereiten"); break;
case "2": Nav.NavigateTo("/inventur/starten"); break;
case "3": Nav.NavigateTo("/inventur/liste"); break;
case "4": Nav.NavigateTo("/inventur/abschliessen"); break;
}
}
}

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@page "/inventur/starten"
@using Blazor.IndexedDB
@using ScannerPilot.Data
@using Inv = ScannerPilot.Data.Inventur
@inject IIndexedDbFactory DbFactory
<h3>InventurStarten</h3>
<div class="mb-3">
<button class="btn btn-secondary ms-2" @onclick="Reload">Neu laden</button>
<button class="btn btn-danger ms-2" @onclick="ForceRefresh">Alles löschen</button>
</div>
<input @ref="scanInputRef"
class="form-control"
placeholder="EAN hier scannen..."
@bind="scanInput"
@onfocus="OnInputFocus"
@onkeydown="HandleKeyDown"
autofocus />
@if (!string.IsNullOrEmpty(bezeichnung))
{
<p><strong>Artikel:</strong> @bezeichnung @nettogewicht g</p>
}
@code {
private List<Inv>? inventurliste;
private string scanInput = string.Empty;
private string? bezeichnung;
private string? nettogewicht;
private ElementReference scanInputRef;
protected override async Task OnInitializedAsync() => await Reload();
// Wenn das Feld den Fokus bekommt
private void OnInputFocus(FocusEventArgs e)
{
bezeichnung = null; // Reset
nettogewicht = null; // Reset
}
// Wenn der Scanner Enter schickt
private async Task HandleKeyDown(KeyboardEventArgs e)
{
if (e.Key == "Enter" || e.Key == "Tab" || e.Key == "NumpadEnter" && !string.IsNullOrWhiteSpace(scanInput))
{
using var db = await DbFactory.Create<ScannerPilotDB>();
var artikel = db.ArtikelListe.FirstOrDefault(a => a.Barcode == scanInput);
if (artikel is not null)
{
bezeichnung = artikel.Bezeichnung;
nettogewicht = artikel.NettoGewicht.ToString();
}
else
{
bezeichnung = $"Kein Artikel für EAN {scanInput} gefunden.";
}
// Eingabefeld zurücksetzen & sofort wieder Fokus geben
scanInput = string.Empty;
}
}
private async Task Reload()
{
using var db = await DbFactory.Create<ScannerPilotDB>();
inventurliste = db.InventurListe.ToList();
StateHasChanged();
}
private async Task ForceRefresh()
{
using var db = await DbFactory.Create<ScannerPilotDB>();
db.InventurListe.Clear();
await db.SaveChanges();
await Reload();
}
}

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@page "/inventur/vorbereiten"
@using Blazor.IndexedDB
@using ScannerPilot.Data
@using System.Net.Http.Headers
@using System.Text.Json
@using static System.Net.WebRequestMethods
@using Art = ScannerPilot.Data.Artikel
@inject IIndexedDbFactory DbFactory
@inject HttpClient httpClient
@inject IJSRuntime JS
<PageTitle>Home</PageTitle>
<h3>Artikelliste</h3>
@if (!string.IsNullOrEmpty(message))
{
<div class="alert alert-warning">
⚠ @message
<NavLink class="alert-link" href="/einstellungen"> → zu den Einstellungen</NavLink>
</div>
}
<div class="mb-3">
<button class="btn btn-primary" @onclick="InsertFromApi">Artikel aus API einfügen</button>
<button class="btn btn-secondary ms-2" @onclick="Reload">Neu laden</button>
<button class="btn btn-danger ms-2" @onclick="ForceRefresh">Alles löschen</button>
</div>
@if (artikelliste is null)
{
<p class="text-muted">Lade…</p>
}
else if (artikelliste.Count == 0)
{
<p><i>Keine Artikel vorhanden.</i></p>
}
else
{
<div class="table-responsive">
<table class="table table-sm table-striped align-middle">
<thead class="table-light">
<tr>
<th style="width:80px">Key</th>
<th>Artikel-Nr.</th>
<th>Variante</th>
<th>Bezeichnung</th>
<th>Barcode</th>
<th class="text-end">Nettogewicht (g)</th>
</tr>
</thead>
<tbody>
@foreach (var a in artikelliste)
{
<tr>
<td>@a.ArtikelVariantenId</td>
<td>@a.Nummer</td>
<td>@a.Variante</td>
<td>@a.Bezeichnung</td>
<td>@a.Barcode</td>
<td class="text-end">@a.NettoGewicht.ToString("0.###")</td>
</tr>
}
</tbody>
</table>
</div>
}
@code {
private List<Artikel>? artikelliste;
private string? message;
private string? filialId;
protected override async Task OnInitializedAsync()
{
filialId = await JS.InvokeAsync<string?>("localStorage.getItem", "scannerpilot.filialId");
if (string.IsNullOrWhiteSpace(filialId))
{
message = "⚠ Bitte zuerst eine Filial-ID in den Einstellungen hinterlegen!";
filialId = "000";
}
await Reload();
}
private async Task Reload()
{
using var db = await DbFactory.Create<ScannerPilotDB>();
artikelliste = db.ArtikelListe.ToList();
StateHasChanged();
}
private async Task ForceRefresh()
{
using var db = await DbFactory.Create<ScannerPilotDB>();
db.ArtikelListe.Clear();
await db.SaveChanges();
await Reload();
}
public class ApiArtikelDto
{
public string ArtikelVariantenId { get; set; }
public string Barcode { get; set; }
public string Nummer { get; set; }
public string Bezeichnung { get; set; }
public string Mengeneinheit { get; set; }
public double NettoGewicht { get; set; }
public string Variante { get; set; }
}
private async Task InsertFromApi()
{
string url = @"http://192.168.178.187:7000/GetArtikelliste";
//string url = "https://feiertage-api.de/api/?jahr=2025&nur_land=SN";
try
{
using var req = new HttpRequestMessage(HttpMethod.Get, url);
using var resp = await httpClient.SendAsync(req, HttpCompletionOption.ResponseHeadersRead);
var body = await resp.Content.ReadAsStringAsync();
// Console.WriteLine(body); // Debug-Ausgabe
var artikelVonApi = JsonSerializer.Deserialize<Dictionary<string, ApiArtikelDto>>(body);
// if (artikelVonApi != null)
// {
// foreach (var a in artikelVonApi)
// {
// Console.WriteLine($"Name: {a.Key}");
// Console.WriteLine($"ArtikelVariantenId: {a.Value.ArtikelVariantenId}");
// Console.WriteLine($"Nummer: {a.Value.Nummer}");
// Console.WriteLine("------");
// }
// }
if (artikelVonApi != null && artikelVonApi.Count > 0)
{
using var db = await DbFactory.Create<ScannerPilotDB>();
foreach (var kv in artikelVonApi)
{
var dto = kv.Value;
// DTO → IndexedDB-Entity mappen
var artikel = new Artikel
{
ArtikelVariantenId = int.TryParse(dto.ArtikelVariantenId, out var id) ? id : 0,
Barcode = dto.Barcode,
Nummer = dto.Nummer,
Bezeichnung = dto.Bezeichnung,
Mengeneinheit = dto.Mengeneinheit,
NettoGewicht = dto.NettoGewicht,
Variante = string.IsNullOrWhiteSpace(dto.Variante) ? "0" : dto.Variante
};
// Upsert in IndexedDB per ArtikelVariantenId
var existing = db.ArtikelListe.FirstOrDefault(x => x.ArtikelVariantenId == artikel.ArtikelVariantenId);
if (existing is not null)
{
db.ArtikelListe.Remove(existing);
}
db.ArtikelListe.Add(artikel);
}
await db.SaveChanges();
await Reload();
}
// using var db = await DbFactory.Create<ScannerPilotDB>();
// foreach (var a in artikelVonApi)
// {
// db.ArtikelListe.Add(a.Key);
// }
// await db.SaveChanges();
// await Reload();
}
catch (Exception ex)
{
Console.WriteLine($"Fehler beim API-Insert: {ex}");
}
}
}
}

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using Blazor.IndexedDB;
using Microsoft.AspNetCore.Components.Web;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using ScannerPilot;
var builder = WebAssemblyHostBuilder.CreateDefault(args);
builder.RootComponents.Add<App>("#app");
builder.RootComponents.Add<HeadOutlet>("head::after");
builder.Services.AddScoped(sp => new HttpClient());
//Blazor.IndexDB
builder.Services.AddSingleton<IIndexedDbFactory, IndexedDbFactory>();
await builder.Build().RunAsync();

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{
"$schema": "http://json.schemastore.org/launchsettings.json",
"iisSettings": {
"windowsAuthentication": false,
"anonymousAuthentication": true,
"iisExpress": {
"applicationUrl": "http://localhost:7470",
"sslPort": 44359
}
},
"profiles": {
"http": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
"applicationUrl": "http://0.0.0.0:5046",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"https": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
"applicationUrl": "https://0.0.0.0:7106;http://0.0.0.0:5046",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"IIS Express": {
"commandName": "IISExpress",
"launchBrowser": true,
"inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
}
}
}

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<Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">
<PropertyGroup>
<TargetFramework>net8.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
<ServiceWorkerAssetsManifest>service-worker-assets.js</ServiceWorkerAssetsManifest>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Blazor.IndexedDB" Version="3.0.3" />
<PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="8.0.20" />
<PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="8.0.20" PrivateAssets="all" />
<PackageReference Include="Microsoft.Data.SqlClient" Version="6.1.1" />
</ItemGroup>
<ItemGroup>
<ServiceWorker Include="wwwroot\service-worker.js" PublishedContent="wwwroot\service-worker.published.js" />
</ItemGroup>
</Project>

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@using System.Net.Http
@using System.Net.Http.Json
@using Microsoft.AspNetCore.Components.Forms
@using Microsoft.AspNetCore.Components.Routing
@using Microsoft.AspNetCore.Components.Web
@using Microsoft.AspNetCore.Components.Web.Virtualization
@using Microsoft.AspNetCore.Components.WebAssembly.Http
@using Microsoft.JSInterop
@using ScannerPilot
@using ScannerPilot.Layout

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html, body {
font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}
h1:focus {
outline: none;
}
a, .btn-link {
color: #0071c1;
}
.btn-primary {
color: #fff;
background-color: #1b6ec2;
border-color: #1861ac;
}
.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}
.content {
padding-top: 1.1rem;
}
.valid.modified:not([type=checkbox]) {
outline: 1px solid #26b050;
}
.invalid {
outline: 1px solid red;
}
.validation-message {
color: red;
}
#blazor-error-ui {
background: lightyellow;
bottom: 0;
box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
display: none;
left: 0;
padding: 0.6rem 1.25rem 0.7rem 1.25rem;
position: fixed;
width: 100%;
z-index: 1000;
}
#blazor-error-ui .dismiss {
cursor: pointer;
position: absolute;
right: 0.75rem;
top: 0.5rem;
}
.blazor-error-boundary {
background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
padding: 1rem 1rem 1rem 3.7rem;
color: white;
}
.blazor-error-boundary::after {
content: "An error has occurred."
}
.loading-progress {
position: relative;
display: block;
width: 8rem;
height: 8rem;
margin: 20vh auto 1rem auto;
}
.loading-progress circle {
fill: none;
stroke: #e0e0e0;
stroke-width: 0.6rem;
transform-origin: 50% 50%;
transform: rotate(-90deg);
}
.loading-progress circle:last-child {
stroke: #1b6ec2;
stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
transition: stroke-dasharray 0.05s ease-in-out;
}
.loading-progress-text {
position: absolute;
text-align: center;
font-weight: bold;
inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}
.loading-progress-text:after {
content: var(--blazor-load-percentage-text, "Loading");
}
code {
color: #c02d76;
}

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<!DOCTYPE html>
<html lang="de>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>ScannerPilot</title>
<base href="/" />
<link rel="stylesheet" href="css/bootstrap/bootstrap.min.css" />
<link rel="stylesheet" href="css/app.css" />
<link rel="icon" type="image/png" href="favicon.png" />
<link href="ScannerPilot.styles.css" rel="stylesheet" />
<link href="manifest.webmanifest" rel="manifest" />
<link rel="apple-touch-icon" sizes="512x512" href="icon-512.png" />
<link rel="apple-touch-icon" sizes="192x192" href="icon-192.png" />
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css">
</head>
<body>
<div id="app">
<svg class="loading-progress">
<circle r="40%" cx="50%" cy="50%" />
<circle r="40%" cx="50%" cy="50%" />
</svg>
<div class="loading-progress-text"></div>
</div>
<div id="blazor-error-ui">
An unhandled error has occurred.
<a href="" class="reload">Reload</a>
<a class="dismiss">🗙</a>
</div>
<script src="_framework/blazor.webassembly.js"></script>
<script>navigator.serviceWorker.register('service-worker.js');</script>
<script src="_content/Blazor.IndexedDB/indexedDb.Blazor.js"></script>
</body>
<script>
function initMenuHotkeys(dotNetHelper) {
document.addEventListener("keydown", function (e) {
// nur Ziffern 1-4
if (["1", "2", "3", "4"].includes(e.key)) {
dotNetHelper.invokeMethodAsync("HandleKey", e.key);
}
});
}
</script>
</html>

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{
"name": "ScannerPilot",
"short_name": "ScannerPilot",
"id": "./",
"start_url": "./",
"display": "standalone",
"background_color": "#ffffff",
"theme_color": "#03173d",
"prefer_related_applications": false,
"icons": [
{
"src": "icon-512.png",
"type": "image/png",
"sizes": "512x512"
},
{
"src": "icon-192.png",
"type": "image/png",
"sizes": "192x192"
}
]
}

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// In development, always fetch from the network and do not enable offline support.
// This is because caching would make development more difficult (changes would not
// be reflected on the first load after each change).
self.addEventListener('fetch', () => { });

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// Caution! Be sure you understand the caveats before publishing an application with
// offline support. See https://aka.ms/blazor-offline-considerations
self.importScripts('./service-worker-assets.js');
self.addEventListener('install', event => event.waitUntil(onInstall(event)));
self.addEventListener('activate', event => event.waitUntil(onActivate(event)));
self.addEventListener('fetch', event => event.respondWith(onFetch(event)));
const cacheNamePrefix = 'offline-cache-';
const cacheName = `${cacheNamePrefix}${self.assetsManifest.version}`;
const offlineAssetsInclude = [ /\.dll$/, /\.pdb$/, /\.wasm/, /\.html/, /\.js$/, /\.json$/, /\.css$/, /\.woff$/, /\.png$/, /\.jpe?g$/, /\.gif$/, /\.ico$/, /\.blat$/, /\.dat$/ ];
const offlineAssetsExclude = [ /^service-worker\.js$/ ];
// Replace with your base path if you are hosting on a subfolder. Ensure there is a trailing '/'.
const base = "/";
const baseUrl = new URL(base, self.origin);
const manifestUrlList = self.assetsManifest.assets.map(asset => new URL(asset.url, baseUrl).href);
async function onInstall(event) {
console.info('Service worker: Install');
// Fetch and cache all matching items from the assets manifest
const assetsRequests = self.assetsManifest.assets
.filter(asset => offlineAssetsInclude.some(pattern => pattern.test(asset.url)))
.filter(asset => !offlineAssetsExclude.some(pattern => pattern.test(asset.url)))
.map(asset => new Request(asset.url, { integrity: asset.hash, cache: 'no-cache' }));
await caches.open(cacheName).then(cache => cache.addAll(assetsRequests));
}
async function onActivate(event) {
console.info('Service worker: Activate');
// Delete unused caches
const cacheKeys = await caches.keys();
await Promise.all(cacheKeys
.filter(key => key.startsWith(cacheNamePrefix) && key !== cacheName)
.map(key => caches.delete(key)));
}
async function onFetch(event) {
let cachedResponse = null;
if (event.request.method === 'GET') {
// For all navigation requests, try to serve index.html from cache,
// unless that request is for an offline resource.
// If you need some URLs to be server-rendered, edit the following check to exclude those URLs
const shouldServeIndexHtml = event.request.mode === 'navigate'
&& !manifestUrlList.some(url => url === event.request.url);
const request = shouldServeIndexHtml ? 'index.html' : event.request;
const cache = await caches.open(cacheName);
cachedResponse = await cache.match(request);
}
return cachedResponse || fetch(event.request);
}