TekH
1b2731b4b2
Updated navigation logic and routes to remove the `/report` suffix, simplifying the URL structure for envelope-related pages.
- Updated `LoginReceiverPage.razor` and `ReceiverSignedPage.razor` to redirect to `/envelope/{EnvelopeKey}`.
- Changed `ReceiverPage.razor` route to `/envelope/{EnvelopeKey}`.
- Updated `ILogger` dependencies in `ReceiverPage.razor` and `ReceiverSignedPage.razor` to reflect new class names.
- Modified `EnvelopeReceiverPage.razor` route to `/envelope/{EnvelopeKey}/deprc`, indicating deprecation or restructuring.
724 lines
36 KiB
Plaintext
724 lines
36 KiB
Plaintext
@page "/envelope/{EnvelopeKey}"
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@rendermode InteractiveServer
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@using DevExpress.Blazor.Reporting
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@using DevExpress.XtraReports.UI
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@using EnvelopeGenerator.Server.Client.Models
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@using EnvelopeGenerator.Server.Client.Models.Constants
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@using EnvelopeGenerator.Server.Client.Services
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@using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver
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@using Microsoft.JSInterop
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@using DevExpress.Blazor
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@using System.Drawing
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@using System.Security.Claims
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@using Microsoft.Extensions.Caching.Memory
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@inject NavigationManager Navigation
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@inject IJSRuntime JSRuntime
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@inject EnvelopeGenerator.Server.Client.Services.AuthService AuthService
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@inject EnvelopeGenerator.Server.Services.EnvelopeReceiverAuthorizationService ReceiverAuthorizationService
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@inject EnvelopeGenerator.Server.Services.EnvelopeReceiverPageDataService PageDataService
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@inject AppVersionService AppVersion
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@inject IMemoryCache MemoryCache
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@inject ILogger<ReceiverPage> Logger
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@implements IDisposable
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<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
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<link href="_content/DevExpress.Blazor.Reporting.Viewer/css/dx-blazor-reporting-components.bs5.css" rel="stylesheet" />
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<link href="@AppVersion.GetVersionedUrl("css/envelope-viewer.css")" rel="stylesheet" />
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<script src="@AppVersion.GetVersionedUrl("js/receiver-signature.js")"></script>
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<div class="envelope-viewer-layout">
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<div class="envelope-action-bar">
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<div class="envelope-action-bar__inner" style="flex-direction: column; align-items: stretch; padding: 0.35rem 1.5rem; gap: 0.35rem;">
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@* Row 1: Title + Sender + Badges *@
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<div style="display: flex; align-items: center; justify-content: space-between; gap: 1rem;">
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@* Left: Title + Sender *@
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<div style="flex: 0 1 auto; min-width: 0; display: flex; align-items: center; gap: 0.75rem;">
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@if (_envelopeReceiver is not null)
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{
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<div style="font-size: 0.9rem; font-weight: 600; color: #1f2937; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;">
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@(_envelopeReceiver.Envelope?.Title ?? "Dokument")
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</div>
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@if (!string.IsNullOrWhiteSpace(_envelopeReceiver.Envelope?.User?.FullName) || !string.IsNullOrWhiteSpace(_envelopeReceiver.Envelope?.User?.Email))
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{
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<span style="font-size: 0.7rem; color: #6b7280; white-space: nowrap;">
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Von
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@if (!string.IsNullOrWhiteSpace(_envelopeReceiver.Envelope?.User?.FullName))
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{
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<span style="font-weight: 500; color: #374151;">@_envelopeReceiver.Envelope.User.FullName</span>
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}
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@if (!string.IsNullOrWhiteSpace(_envelopeReceiver.Envelope?.User?.Email))
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{
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<span><@_envelopeReceiver.Envelope.User.Email></span>
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}
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@if (_envelopeReceiver.Envelope?.AddedWhen != null)
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{
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<span> · @_envelopeReceiver.Envelope.AddedWhen.ToString("dd.MM.yyyy")</span>
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}
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</span>
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}
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}
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else
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{
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<div style="font-size: 0.9rem; font-weight: 600; color: #1f2937;">Dokumentenansicht</div>
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}
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</div>
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@* Right: Badges + Signature status *@
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<div class="d-flex align-items-center" style="gap: 0.75rem; flex: 0 0 auto;">
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@if (_envelopeReceiver is not null)
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{
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<div class="d-flex flex-wrap align-items-center" style="gap: 0.3rem; font-size: 0.7rem;">
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@if (!string.IsNullOrWhiteSpace(_envelopeReceiver.Name))
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{
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<span style="display: inline-flex; align-items: center; padding: 0.125rem 0.4rem; background: #f3f4f6; border-radius: 0.25rem; color: #374151; white-space: nowrap;">
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<svg xmlns="http://www.w3.org/2000/svg" width="9" height="9" fill="currentColor" class="me-1" viewBox="0 0 16 16">
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<path d="M8 8a3 3 0 1 0 0-6 3 3 0 0 0 0 6Zm2-3a2 2 0 1 1-4 0 2 2 0 0 1 4 0Zm4 8c0 1-1 1-1 1H3s-1 0-1-1 1-4 6-4 6 3 6 4Z" />
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</svg>
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@_envelopeReceiver.Name
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</span>
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}
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@if (_signatures.Count > 0)
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{
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<span style="display: inline-flex; align-items: center; padding: 0.125rem 0.4rem; background: @(_capturedSignature is not null ? "#d1fae5" : "#ede9fe"); border-radius: 0.25rem; color: @(_capturedSignature is not null ? "#065f46" : "#6d28d9"); font-weight: 500; white-space: nowrap;">
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<svg xmlns="http://www.w3.org/2000/svg" width="9" height="9" fill="currentColor" class="me-1" viewBox="0 0 16 16">
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<path d="M12.146.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1 0 .708l-10 10a.5.5 0 0 1-.168.11l-5 2a.5.5 0 0 1-.65-.65l2-5a.5.5 0 0 1 .11-.168l10-10zM11.207 2.5 13.5 4.793 14.793 3.5 12.5 1.207 11.207 2.5zm1.586 3L10.5 3.207 4 9.707V10h.5a.5.5 0 0 1 .5.5v.5h.5a.5.5 0 0 1 .5.5v.5h.293l6.5-6.5zm-9.761 5.175-.106.106-1.528 3.821 3.821-1.528.106-.106A.5.5 0 0 1 5 12.5V12h-.5a.5.5 0 0 1-.5-.5V11h-.5a.5.5 0 0 1-.468-.325z" />
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</svg>
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@_signatures.Count Unterschrift@(_signatures.Count != 1 ? "en" : "")
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@if (_capturedSignature is not null)
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{
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<span class="ms-1">✓</span>
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}
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</span>
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}
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@if (_envelopeReceiver.Envelope?.UseAccessCode ?? false)
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{
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<span style="display: inline-flex; align-items: center; padding: 0.125rem 0.4rem; background: #fef3c7; border-radius: 0.25rem; color: #92400e; font-weight: 500; white-space: nowrap;">
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<svg xmlns="http://www.w3.org/2000/svg" width="9" height="9" fill="currentColor" class="me-1" viewBox="0 0 16 16">
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<path d="M8 1a2 2 0 0 1 2 2v4H6V3a2 2 0 0 1 2-2zm3 6V3a3 3 0 0 0-6 0v4a2 2 0 0 0-2 2v5a2 2 0 0 0 2 2h6a2 2 0 0 0 2-2V9a2 2 0 0 0-2-2z" />
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</svg>
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Code
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</span>
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}
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@if (_envelopeReceiver.Envelope?.TFAEnabled ?? false)
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{
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<span style="display: inline-flex; align-items: center; padding: 0.125rem 0.4rem; background: #dbeafe; border-radius: 0.25rem; color: #1e40af; font-weight: 500; white-space: nowrap;">
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<svg xmlns="http://www.w3.org/2000/svg" width="9" height="9" fill="currentColor" class="me-1" viewBox="0 0 16 16">
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<path d="M5.338 1.59a61.44 61.44 0 0 0-2.837.856.481.481 0 0 0-.328.39c-.554 4.157.726 7.19 2.253 9.188a10.725 10.725 0 0 0 2.287 2.233c.346.244.652.42.893.533.12.057.218.095.293.118a.55.55 0 0 0 .101.025.615.615 0 0 0 .1-.025c.076-.023.174-.061.294-.118.24-.113.547-.29.893-.533a10.726 10.726 0 0 0 2.287-2.233c1.527-1.997 2.807-5.031 2.253-9.188a.48.48 0 0 0-.328-.39c-.651-.213-1.75-.56-2.837-.855C9.552 1.29 8.531 1.067 8 1.067c-.53 0-1.552.223-2.662.524zM5.072.56C6.157.265 7.31 0 8 0s1.843.265 2.928.56c1.11.3 2.229.655 2.887.87a1.54 1.54 0 0 1 1.044 1.262c.596 4.477-.787 7.795-2.465 9.99a11.775 11.775 0 0 1-2.517 2.453 7.159 7.159 0 0 1-1.048.625c-.28.132-.581.24-.829.24s-.548-.108-.829-.24a7.158 7.158 0 0 1-1.048-.625 11.777 11.777 0 0 1-2.517-2.453C1.928 10.487.545 7.169 1.141 2.692A1.54 1.54 0 0 1 2.185 1.43 62.456 62.456 0 0 1 5.072.56z" />
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<path d="M10.854 5.146a.5.5 0 0 1 0 .708l-3 3a.5.5 0 0 1-.708 0l-1.5-1.5a.5.5 0 1 1 .708-.708L7.5 7.793l2.646-2.647a.5.5 0 0 1 .708 0z" />
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</svg>
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2FA
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</span>
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}
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</div>
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}
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@* Unterschreiben button — visible only when signature fields exist *@
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@if (_signatures.Count > 0)
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{
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<button class="pdf-toolbar__btn pdf-toolbar__btn--signature-change pdf-toolbar__btn--signature-change-active"
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@onclick="OpenSignaturePopup"
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title="Unterschreiben"
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style="flex-shrink: 0;">
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<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16">
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<path d="M12.146.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1 0 .708l-10 10a.5.5 0 0 1-.168.11l-5 2a.5.5 0 0 1-.65-.65l2-5a.5.5 0 0 1 .11-.168l10-10zM11.207 2.5 13.5 4.793 14.793 3.5 12.5 1.207 11.207 2.5zm1.586 3L10.5 3.207 4 9.707V10h.5a.5.5 0 0 1 .5.5v.5h.5a.5.5 0 0 1 .5.5v.5h.293l6.5-6.5zm-9.761 5.175-.106.106-1.528 3.821 3.821-1.528.106-.106A.5.5 0 0 1 5 12.5V12h-.5a.5.5 0 0 1-.5-.5V11h-.5a.5.5 0 0 1-.468-.325z" />
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</svg>
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<span class="pdf-toolbar__btn-text">Unterschreiben</span>
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</button>
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}
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</div>
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</div>
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@* Row 2: Messages *@
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@if (_envelopeReceiver is not null && (!string.IsNullOrWhiteSpace(_envelopeReceiver.Envelope?.Message) || !string.IsNullOrWhiteSpace(_envelopeReceiver.PrivateMessage)))
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{
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<div style="display: flex; align-items: flex-start; gap: 0.5rem; font-size: 0.7rem; padding-top: 0.15rem; border-top: 1px solid #e5e7eb;">
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@if (!string.IsNullOrWhiteSpace(_envelopeReceiver.Envelope?.Message))
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{
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<div style="flex: 1; min-width: 0; padding: 0.2rem 0.4rem; background: #f9fafb; border-radius: 0.25rem; border-left: 2px solid #9ca3af; display: flex; align-items: flex-start; gap: 0.25rem;">
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<span style="font-weight: 500; color: #374151; flex-shrink: 0;">📧</span>
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<span style="color: #6b7280; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;">@_envelopeReceiver.Envelope.Message</span>
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</div>
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}
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@if (!string.IsNullOrWhiteSpace(_envelopeReceiver.PrivateMessage))
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{
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<div style="flex: 1; min-width: 0; padding: 0.2rem 0.4rem; background: #fef3c7; border-radius: 0.25rem; border-left: 2px solid #f59e0b; display: flex; align-items: flex-start; gap: 0.25rem;">
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<span style="font-weight: 500; color: #92400e; flex-shrink: 0;">🔒</span>
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<span style="color: #92400e; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;">@_envelopeReceiver.PrivateMessage</span>
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</div>
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}
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</div>
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}
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</div>
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</div>
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<div class="envelope-content" style="padding: 0; overflow: hidden;">
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@if (_isLoading)
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{
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<div class="d-flex justify-content-center align-items-center h-100">
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<div class="text-center">
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<div class="spinner-border text-white mb-3" style="width: 3.5rem; height: 3.5rem;" role="status">
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<span class="visually-hidden">Lädt...</span>
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</div>
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<p class="text-white fw-semibold">Dokument wird geladen...</p>
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</div>
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</div>
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}
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else if (_errorMessage is not null)
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{
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<div class="error-container">
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<div class="alert alert-danger shadow-lg">
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<div class="d-flex align-items-start">
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<svg xmlns="http://www.w3.org/2000/svg" width="28" height="28" fill="currentColor" class="me-3 flex-shrink-0" viewBox="0 0 16 16">
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<path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z" />
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<path d="M7.002 11a1 1 0 1 1 2 0 1 1 0 0 1-2 0zM7.1 4.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 4.995z" />
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</svg>
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<div>
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<h5 class="mb-2">Fehler beim Laden des Dokuments</h5>
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<p class="mb-0">@_errorMessage</p>
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</div>
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</div>
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</div>
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</div>
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}
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else if (_report is not null)
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{
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<DxReportViewer @ref="_reportViewer"
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Report="_report"
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RootCssClasses="w-100 h-100" />
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}
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</div>
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</div>
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@* Signature Popup *@
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<DxPopup @bind-Visible="_signaturePopupVisible"
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HeaderText="Unterschrift erstellen"
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Width="620px"
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MaxWidth="95vw"
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ShowFooter="true"
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CloseOnOutsideClick="false"
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ShowCloseButton="false"
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CloseOnEscape="false"
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Shown="OnPopupShownAsync">
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<BodyContentTemplate>
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<ul class="nav nav-tabs mb-3" style="border-bottom: 2px solid #e9ecef;">
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<li class="nav-item">
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<button type="button"
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class="nav-link @(_activeSignatureTab == SignatureTabDraw ? "active" : "")"
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style="@(_activeSignatureTab == SignatureTabDraw ? "border-bottom: 3px solid #4F46E5; color: #4F46E5; font-weight: 600;" : "color: #6c757d;")"
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@onclick="() => SetSignatureTabAsync(SignatureTabDraw)">
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Zeichnen
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</button>
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</li>
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<li class="nav-item">
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<button type="button"
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class="nav-link @(_activeSignatureTab == SignatureTabText ? "active" : "")"
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style="@(_activeSignatureTab == SignatureTabText ? "border-bottom: 3px solid #4F46E5; color: #4F46E5; font-weight: 600;" : "color: #6c757d;")"
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@onclick="() => SetSignatureTabAsync(SignatureTabText)">
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Text
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</button>
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</li>
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<li class="nav-item">
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<button type="button"
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class="nav-link @(_activeSignatureTab == SignatureTabImage ? "active" : "")"
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style="@(_activeSignatureTab == SignatureTabImage ? "border-bottom: 3px solid #4F46E5; color: #4F46E5; font-weight: 600;" : "color: #6c757d;")"
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@onclick="() => SetSignatureTabAsync(SignatureTabImage)">
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Bild
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</button>
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</li>
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</ul>
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@if (_activeSignatureTab == SignatureTabDraw)
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{
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<p style="color: #6c757d; font-size: 0.875rem; margin-bottom: 0.75rem;">Bitte unterschreiben Sie im folgenden Feld.</p>
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<canvas id="rp-signature-pad"
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width="560"
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height="180"
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style="border: 2px solid #e9ecef; border-radius: 8px; background: white; width: 100%; max-width: 560px; touch-action: none; box-shadow: 0 1px 3px rgba(0,0,0,0.1);"></canvas>
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}
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else if (_activeSignatureTab == SignatureTabText)
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{
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<p style="color: #6c757d; font-size: 0.875rem; margin-bottom: 0.75rem;">Geben Sie Ihre Unterschrift als Text ein und wählen Sie eine Schriftart.</p>
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<div class="row g-3 mb-3">
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<div class="col-12 col-md-7">
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<input class="form-control"
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placeholder="Ihre Unterschrift"
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value="@_typedSignatureText"
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@oninput="OnTypedSignatureChanged"
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style="border: 2px solid #e9ecef; border-radius: 6px; padding: 0.625rem;" />
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</div>
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<div class="col-12 col-md-5">
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<select class="form-select"
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value="@_typedSignatureFont"
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@onchange="OnTypedSignatureFontChanged"
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style="border: 2px solid #e9ecef; border-radius: 6px; padding: 0.625rem;">
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@foreach (var font in TypedSignatureFonts)
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{
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<option value="@font.Value" style="font-family: @font.Value">@font.Text</option>
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}
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</select>
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</div>
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</div>
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<canvas id="rp-typed-signature-pad"
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width="560"
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height="180"
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style="border: 2px solid #e9ecef; border-radius: 8px; background: white; width: 100%; max-width: 560px; box-shadow: 0 1px 3px rgba(0,0,0,0.1);"></canvas>
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}
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else
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{
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<p style="color: #6c757d; font-size: 0.875rem; margin-bottom: 0.75rem;">Laden Sie ein Bild Ihrer Unterschrift hoch.</p>
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<input id="rp-signature-image-input"
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class="form-control mb-3"
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type="file"
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accept="image/png,image/jpeg,image/webp"
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style="border: 2px solid #e9ecef; border-radius: 6px; padding: 0.625rem;" />
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<canvas id="rp-image-signature-pad"
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width="560"
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height="180"
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style="border: 2px solid #e9ecef; border-radius: 8px; background: white; width: 100%; max-width: 560px; box-shadow: 0 1px 3px rgba(0,0,0,0.1);"></canvas>
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}
|
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|
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<div style="border-top: 2px solid #e9ecef; margin-top: 1.5rem; padding-top: 1.5rem;">
|
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<div class="row g-3">
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<div class="col-12 col-md-6">
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<label class="form-label" for="rp-signer-name" style="font-size: 0.875rem; font-weight: 500; color: #495057;">
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Vor- und Nachname <span style="color: #dc3545;">*</span>
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</label>
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<input id="rp-signer-name"
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class="form-control"
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value="@_signerFullName"
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@oninput="args => _signerFullName = args.Value?.ToString() ?? string.Empty"
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style="border: 2px solid #e9ecef; border-radius: 6px; padding: 0.625rem;" />
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</div>
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<div class="col-12 col-md-6">
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<label class="form-label" for="rp-signer-position" style="font-size: 0.875rem; font-weight: 500; color: #495057;">
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Position <span style="color: #6c757d; font-weight: 400;">(optional)</span>
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</label>
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<input id="rp-signer-position"
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class="form-control"
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value="@_signerPosition"
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@oninput="args => _signerPosition = args.Value?.ToString() ?? string.Empty"
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style="border: 2px solid #e9ecef; border-radius: 6px; padding: 0.625rem;" />
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</div>
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<div class="col-12 col-md-6">
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<label class="form-label" for="rp-signature-place" style="font-size: 0.875rem; font-weight: 500; color: #495057;">
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Ort <span style="color: #dc3545;">*</span>
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</label>
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<input id="rp-signature-place"
|
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class="form-control"
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value="@_signaturePlace"
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@oninput="args => _signaturePlace = args.Value?.ToString() ?? string.Empty"
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style="border: 2px solid #e9ecef; border-radius: 6px; padding: 0.625rem;" />
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
@if (!string.IsNullOrWhiteSpace(_popupValidationMessage))
|
||
{
|
||
<div style="background: #fee; border-left: 4px solid #dc3545; padding: 0.75rem 1rem; margin-top: 1rem; border-radius: 4px;">
|
||
<span style="color: #dc3545; font-size: 0.875rem; font-weight: 500;">@_popupValidationMessage</span>
|
||
</div>
|
||
}
|
||
</BodyContentTemplate>
|
||
<FooterContentTemplate>
|
||
<div class="d-flex gap-2 justify-content-between w-100" style="padding: 0.5rem 0;">
|
||
<button class="btn btn-outline-secondary"
|
||
@onclick="RenewSignatureAsync"
|
||
style="border-radius: 6px; padding: 0.625rem 1.25rem; font-weight: 500;">
|
||
<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="me-1" viewBox="0 0 16 16">
|
||
<path fill-rule="evenodd" d="M8 3a5 5 0 1 0 4.546 2.914.5.5 0 0 1 .908-.417A6 6 0 1 1 8 2v1z" />
|
||
<path d="M8 4.466V.534a.25.25 0 0 1 .41-.192l2.36 1.966c.12.1.12.284 0 .384L8.41 4.658A.25.25 0 0 1 8 4.466z" />
|
||
</svg>
|
||
Erneuern
|
||
</button>
|
||
<button class="btn btn-primary"
|
||
@onclick="SaveSignatureAsync"
|
||
style="background: linear-gradient(135deg, #4F46E5 0%, #4338CA 100%); border: none; border-radius: 6px; padding: 0.625rem 2rem; font-weight: 600; box-shadow: 0 2px 4px rgba(79, 70, 229, 0.3);">
|
||
<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="me-1" viewBox="0 0 16 16">
|
||
<path d="M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z" />
|
||
</svg>
|
||
Speichern
|
||
</button>
|
||
</div>
|
||
</FooterContentTemplate>
|
||
</DxPopup>
|
||
|
||
@code {
|
||
// ----- Constants -----
|
||
const string SignatureTabDraw = "draw";
|
||
const string SignatureTabText = "text";
|
||
const string SignatureTabImage = "image";
|
||
const string DrawCanvasId = "rp-signature-pad";
|
||
const string TypedCanvasId = "rp-typed-signature-pad";
|
||
const string ImageInputId = "rp-signature-image-input";
|
||
const string ImageCanvasId = "rp-image-signature-pad";
|
||
|
||
readonly (string Text, string Value)[] TypedSignatureFonts =
|
||
[
|
||
("Brush Script", "'Brush Script MT', cursive"),
|
||
("Segoe Script", "'Segoe Script', cursive"),
|
||
("Lucida Handwriting", "'Lucida Handwriting', cursive"),
|
||
("Comic Sans", "'Comic Sans MS', cursive"),
|
||
("Cursive", "cursive"),
|
||
];
|
||
|
||
// ----- Parameters -----
|
||
[Parameter] public string? EnvelopeKey { get; set; }
|
||
|
||
// ----- Page state -----
|
||
bool _isLoading = true;
|
||
string? _errorMessage;
|
||
byte[]? _pdfBytes;
|
||
IReadOnlyList<SignatureDto> _signatures = [];
|
||
EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver.EnvelopeReceiverDto? _envelopeReceiver;
|
||
ClaimsPrincipal? _receiverUser;
|
||
|
||
// ----- Report viewer -----
|
||
DxReportViewer? _reportViewer;
|
||
XtraReport? _report;
|
||
|
||
// ----- Signature popup state -----
|
||
SignatureCaptureDto? _capturedSignature;
|
||
bool _signaturePopupVisible = false;
|
||
string? _popupValidationMessage;
|
||
string _activeSignatureTab = SignatureTabDraw;
|
||
string _typedSignatureText = string.Empty;
|
||
string _typedSignatureFont = "'Brush Script MT', cursive";
|
||
string _signerFullName = string.Empty;
|
||
string _signerPosition = string.Empty;
|
||
string _signaturePlace = string.Empty;
|
||
|
||
// ----- Lifecycle -----
|
||
protected override async Task OnInitializedAsync()
|
||
{
|
||
if (string.IsNullOrWhiteSpace(EnvelopeKey))
|
||
{
|
||
_errorMessage = "Envelope-Schlüssel fehlt.";
|
||
_isLoading = false;
|
||
return;
|
||
}
|
||
|
||
// Authorization — same pattern as EnvelopeReceiverPage
|
||
_receiverUser = await ReceiverAuthorizationService.AuthorizeAsync(EnvelopeKey);
|
||
if (_receiverUser is null)
|
||
{
|
||
Navigation.NavigateTo($"/envelope/login/{Uri.EscapeDataString(EnvelopeKey)}");
|
||
return;
|
||
}
|
||
|
||
try
|
||
{
|
||
// Load PDF bytes via MediatR (uses authenticated user's claims)
|
||
_pdfBytes = await PageDataService.GetDocumentAsync(_receiverUser);
|
||
if (_pdfBytes is not { Length: > 0 })
|
||
{
|
||
_errorMessage = "Dokument konnte nicht geladen werden: Keine Daten empfangen.";
|
||
_isLoading = false;
|
||
return;
|
||
}
|
||
|
||
// Load signature fields for this receiver
|
||
_signatures = await PageDataService.GetSignaturesAsync(_receiverUser);
|
||
|
||
// Load envelope receiver metadata
|
||
_envelopeReceiver = await PageDataService.GetEnvelopeReceiverAsync(EnvelopeKey);
|
||
if (_envelopeReceiver is null)
|
||
Logger.LogWarning("Envelope receiver data is null for {EnvelopeKey}", EnvelopeKey);
|
||
|
||
// Build initial report (no signature image yet)
|
||
_report = BuildReport(_pdfBytes, _signatures, capturedSignature: null);
|
||
|
||
// Try to restore cached signature
|
||
try
|
||
{
|
||
var cachedSignature = await PageDataService.GetCachedSignatureAsync(_receiverUser);
|
||
if (cachedSignature is not null)
|
||
{
|
||
_capturedSignature = cachedSignature;
|
||
_signerFullName = cachedSignature.FullName;
|
||
_signerPosition = cachedSignature.Position;
|
||
_signaturePlace = cachedSignature.Place;
|
||
_signaturePopupVisible = false;
|
||
|
||
// Rebuild with cached signature overlaid
|
||
_report = BuildReport(_pdfBytes, _signatures, _capturedSignature);
|
||
}
|
||
else
|
||
{
|
||
_activeSignatureTab = SignatureTabDraw;
|
||
_signaturePopupVisible = false;
|
||
_popupValidationMessage = null;
|
||
}
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
Logger.LogWarning(ex, "Failed to load cached signature for {EnvelopeKey}", EnvelopeKey);
|
||
_activeSignatureTab = SignatureTabDraw;
|
||
_signaturePopupVisible = false;
|
||
_popupValidationMessage = null;
|
||
}
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
_errorMessage = $"Fehler beim Laden des Dokuments: {ex.Message}";
|
||
Logger.LogError(ex, "Unexpected error for {EnvelopeKey}", EnvelopeKey);
|
||
}
|
||
|
||
_isLoading = false;
|
||
await InvokeAsync(StateHasChanged);
|
||
}
|
||
|
||
// ----- Report builder -----
|
||
/// <summary>
|
||
/// Builds an XtraReport wrapping the PDF bytes.
|
||
/// If a signature is captured and there are signature fields, the signature image is
|
||
/// first burned into the PDF via DevExpress PdfDocumentProcessor, then the modified
|
||
/// PDF is handed to XRPdfContent with GenerateOwnPages = true so that all pages appear.
|
||
/// </summary>
|
||
static XtraReport BuildReport(
|
||
byte[] pdfBytes,
|
||
IReadOnlyList<SignatureDto> signatures,
|
||
SignatureCaptureDto? capturedSignature)
|
||
{
|
||
// Always draw placeholder boxes on signature fields so the user knows where to sign.
|
||
// When a captured signature exists, it will be applied in the Signed page instead.
|
||
byte[] sourcePdf = pdfBytes;
|
||
if (signatures.Count > 0)
|
||
{
|
||
sourcePdf = DrawSignaturePlaceholders(pdfBytes, signatures);
|
||
}
|
||
|
||
var report = new XtraReport
|
||
{
|
||
PaperKind = DevExpress.Drawing.Printing.DXPaperKind.A4,
|
||
Landscape = false,
|
||
Margins = new System.Drawing.Printing.Margins(0, 0, 0, 0),
|
||
};
|
||
|
||
var detail = new DetailBand { HeightF = 0f };
|
||
report.Bands.Add(detail);
|
||
|
||
detail.Controls.Add(new XRPdfContent
|
||
{
|
||
Source = sourcePdf,
|
||
GenerateOwnPages = true,
|
||
});
|
||
|
||
return report;
|
||
}
|
||
|
||
/// <summary>
|
||
/// Uses PdfSharp to draw a visible signature placeholder box on every signature field.
|
||
/// sig.X / sig.Y come from GetSignaturesAsync(UnitOfLength.Point) → already in PDF points.
|
||
/// PdfSharp coordinate origin: bottom-left, Y up. Conversion: pdfY = pageH - sigY - sigH
|
||
/// Signature field size (fixed): 1.77" × 1.96" = 127.44pt × 141.12pt
|
||
/// </summary>
|
||
static byte[] DrawSignaturePlaceholders(
|
||
byte[] pdfBytes,
|
||
IReadOnlyList<SignatureDto> signatures)
|
||
{
|
||
if (signatures.Count == 0) return pdfBytes;
|
||
|
||
using var inputMs = new System.IO.MemoryStream(pdfBytes);
|
||
using var outputMs = new System.IO.MemoryStream();
|
||
|
||
var document = PdfSharp.Pdf.IO.PdfReader.Open(
|
||
inputMs,
|
||
PdfSharp.Pdf.IO.PdfDocumentOpenMode.Modify);
|
||
|
||
const double sigW = 1.77 * 72; // 127.44 pt
|
||
const double sigH = 1.96 * 72; // 141.12 pt
|
||
|
||
foreach (var sig in signatures)
|
||
{
|
||
int pageIndex = sig.Page - 1;
|
||
if (pageIndex < 0 || pageIndex >= document.PageCount) continue;
|
||
|
||
var page = document.Pages[pageIndex];
|
||
|
||
// PdfSharp XGraphics uses top-left origin, Y down — same as sig.X/sig.Y
|
||
// No coordinate conversion needed.
|
||
using var gfx = PdfSharp.Drawing.XGraphics.FromPdfPage(page);
|
||
|
||
var rect = new PdfSharp.Drawing.XRect(sig.X, sig.Y, sigW, sigH);
|
||
|
||
// Filled semi-transparent rectangle
|
||
var fillBrush = new PdfSharp.Drawing.XSolidBrush(
|
||
PdfSharp.Drawing.XColor.FromArgb(40, 60, 80, 160));
|
||
var borderPen = new PdfSharp.Drawing.XPen(
|
||
PdfSharp.Drawing.XColor.FromArgb(200, 60, 80, 200), 1.5);
|
||
|
||
gfx.DrawRectangle(fillBrush, rect);
|
||
gfx.DrawRectangle(borderPen, rect);
|
||
|
||
// "UNTERSCHRIFT" label centred in the box
|
||
var font = new PdfSharp.Drawing.XFont("Arial", 9,
|
||
PdfSharp.Drawing.XFontStyleEx.Bold);
|
||
var textBrush = new PdfSharp.Drawing.XSolidBrush(
|
||
PdfSharp.Drawing.XColor.FromArgb(200, 40, 60, 140));
|
||
|
||
var textFmt = new PdfSharp.Drawing.XStringFormat
|
||
{
|
||
Alignment = PdfSharp.Drawing.XStringAlignment.Center,
|
||
LineAlignment = PdfSharp.Drawing.XLineAlignment.Center,
|
||
};
|
||
gfx.DrawString("UNTERSCHRIFT", font, textBrush, rect, textFmt);
|
||
}
|
||
|
||
document.Save(outputMs);
|
||
return outputMs.ToArray();
|
||
}
|
||
|
||
/// <summary>Converts a base64 data URL (data:image/...;base64,...) to raw bytes.</summary>
|
||
static byte[]? DataUrlToBytes(string dataUrl)
|
||
{
|
||
try
|
||
{
|
||
var commaIndex = dataUrl.IndexOf(',');
|
||
if (commaIndex < 0) return null;
|
||
return Convert.FromBase64String(dataUrl[(commaIndex + 1)..]);
|
||
}
|
||
catch
|
||
{
|
||
return null;
|
||
}
|
||
}
|
||
|
||
// ----- Signature popup handlers -----
|
||
void OpenSignaturePopup()
|
||
{
|
||
_activeSignatureTab = SignatureTabDraw;
|
||
_signaturePopupVisible = true;
|
||
_popupValidationMessage = null;
|
||
}
|
||
|
||
async Task OnPopupShownAsync()
|
||
{
|
||
await InitializeActiveSignatureTabAsync();
|
||
}
|
||
|
||
async Task SetSignatureTabAsync(string tab)
|
||
{
|
||
_activeSignatureTab = tab;
|
||
_popupValidationMessage = null;
|
||
await InvokeAsync(StateHasChanged);
|
||
await Task.Delay(50);
|
||
await InitializeActiveSignatureTabAsync();
|
||
}
|
||
|
||
async Task InitializeActiveSignatureTabAsync()
|
||
{
|
||
if (_activeSignatureTab == SignatureTabDraw)
|
||
await JSRuntime.InvokeVoidAsync("receiverSignature.initialize", DrawCanvasId);
|
||
else if (_activeSignatureTab == SignatureTabText)
|
||
{
|
||
await JSRuntime.InvokeVoidAsync("receiverSignature.initializeTyped", TypedCanvasId);
|
||
await RenderTypedSignatureAsync();
|
||
}
|
||
else
|
||
await JSRuntime.InvokeVoidAsync("receiverSignature.initializeImage", ImageInputId, ImageCanvasId);
|
||
}
|
||
|
||
async Task RenewSignatureAsync()
|
||
{
|
||
_popupValidationMessage = null;
|
||
if (_activeSignatureTab == SignatureTabDraw)
|
||
await JSRuntime.InvokeVoidAsync("receiverSignature.clear", DrawCanvasId);
|
||
else if (_activeSignatureTab == SignatureTabText)
|
||
{
|
||
_typedSignatureText = string.Empty;
|
||
await JSRuntime.InvokeVoidAsync("receiverSignature.clearTyped", TypedCanvasId);
|
||
}
|
||
else
|
||
await JSRuntime.InvokeVoidAsync("receiverSignature.clearImage", ImageInputId, ImageCanvasId);
|
||
}
|
||
|
||
async Task OnTypedSignatureChanged(Microsoft.AspNetCore.Components.ChangeEventArgs args)
|
||
{
|
||
_typedSignatureText = args.Value?.ToString() ?? string.Empty;
|
||
await RenderTypedSignatureAsync();
|
||
}
|
||
|
||
async Task OnTypedSignatureFontChanged(Microsoft.AspNetCore.Components.ChangeEventArgs args)
|
||
{
|
||
_typedSignatureFont = args.Value?.ToString() ?? _typedSignatureFont;
|
||
await RenderTypedSignatureAsync();
|
||
}
|
||
|
||
async Task RenderTypedSignatureAsync()
|
||
{
|
||
await JSRuntime.InvokeVoidAsync("receiverSignature.renderTypedSignature",
|
||
TypedCanvasId, _typedSignatureText, _typedSignatureFont);
|
||
}
|
||
|
||
async Task SaveSignatureAsync()
|
||
{
|
||
if (string.IsNullOrWhiteSpace(_signerFullName))
|
||
{
|
||
_popupValidationMessage = "Bitte geben Sie Vor- und Nachname ein.";
|
||
return;
|
||
}
|
||
if (string.IsNullOrWhiteSpace(_signaturePlace))
|
||
{
|
||
_popupValidationMessage = "Bitte geben Sie den Ort ein.";
|
||
return;
|
||
}
|
||
|
||
var signatureDataUrl = await GetActiveSignatureDataUrlAsync();
|
||
if (string.IsNullOrWhiteSpace(signatureDataUrl))
|
||
{
|
||
_popupValidationMessage = "Die Unterschrift ist erforderlich.";
|
||
return;
|
||
}
|
||
|
||
_popupValidationMessage = null;
|
||
_capturedSignature = new SignatureCaptureDto
|
||
{
|
||
DataUrl = signatureDataUrl,
|
||
FullName = _signerFullName.Trim(),
|
||
Position = _signerPosition.Trim(),
|
||
Place = _signaturePlace.Trim(),
|
||
};
|
||
_signaturePopupVisible = false;
|
||
|
||
// Store signature in IMemoryCache with a Guid key (1 minute TTL)
|
||
var sid = Guid.NewGuid().ToString("N");
|
||
MemoryCache.Set(
|
||
sid,
|
||
_capturedSignature,
|
||
TimeSpan.FromMinutes(1));
|
||
|
||
Logger.LogInformation(
|
||
"Signature cached with sid={Sid} for envelope {EnvelopeKey}", sid, EnvelopeKey);
|
||
|
||
// Null the report → DxReportViewer removed from DOM → no crash on dispose
|
||
_report = null;
|
||
await InvokeAsync(StateHasChanged);
|
||
await Task.Delay(50);
|
||
|
||
// Navigate — forceLoad:true for clean circuit teardown
|
||
Navigation.NavigateTo(
|
||
$"/envelope/{Uri.EscapeDataString(EnvelopeKey!)}/signed?sid={sid}",
|
||
forceLoad: true);
|
||
}
|
||
|
||
async Task<string?> GetActiveSignatureDataUrlAsync()
|
||
{
|
||
if (_activeSignatureTab == SignatureTabDraw)
|
||
return await JSRuntime.InvokeAsync<string?>("receiverSignature.getDataUrl", DrawCanvasId);
|
||
|
||
if (_activeSignatureTab == SignatureTabText)
|
||
{
|
||
await RenderTypedSignatureAsync();
|
||
return await JSRuntime.InvokeAsync<string?>("receiverSignature.getTypedDataUrl", TypedCanvasId);
|
||
}
|
||
|
||
return await JSRuntime.InvokeAsync<string?>("receiverSignature.getImageDataUrl", ImageCanvasId);
|
||
}
|
||
|
||
// ----- Disposal -----
|
||
public void Dispose()
|
||
{
|
||
_report?.Dispose();
|
||
}
|
||
}
|