Refactor EnvelopeViewer styles and add PDF support

Moved inline styles from `EnvelopeViewer.razor` to a new external
CSS file `envelope-viewer.css` for better maintainability and
separation of concerns. Added external JavaScript dependencies
(`pdf.js` and `pdf-viewer.js`) to enable PDF rendering.

Fixed encoding issues in error messages and improved the layout
structure with responsive design rules. Enhanced readability and
usability by organizing styles and ensuring proper localization
support.
This commit is contained in:
2026-06-05 11:18:23 +02:00
parent 6b051155c4
commit f1ebd47c77
2 changed files with 174 additions and 176 deletions

View File

@@ -10,6 +10,7 @@
@implements IAsyncDisposable
<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
<link href="css/envelope-viewer.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.min.js"></script>
<script src="js/pdf-viewer.js"></script>
@@ -65,7 +66,7 @@
<div class="d-flex justify-content-center align-items-center h-100">
<div class="text-center">
<div class="spinner-border text-white mb-3" style="width: 3.5rem; height: 3.5rem;" role="status">
<span class="visually-hidden">Lädt...</span>
<span class="visually-hidden">L<EFBFBD>dt...</span>
</div>
<p class="text-white fw-semibold">Dokument wird geladen...</p>
</div>
@@ -106,180 +107,6 @@
</div>
</div>
<style>
.envelope-viewer-layout {
display: flex;
flex-direction: column;
height: 100vh;
overflow: hidden;
background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #7e22ce 100%);
}
.envelope-action-bar {
background: rgba(255, 255, 255, 0.95);
backdrop-filter: blur(20px);
border-bottom: 3px solid rgba(126, 34, 206, 0.3);
padding: 1.25rem 2rem;
flex-shrink: 0;
box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}
.envelope-action-bar__inner {
max-width: 1600px;
margin: 0 auto;
display: flex;
align-items: center;
gap: 2rem;
}
.envelope-logo svg {
filter: drop-shadow(0 2px 4px rgba(126, 34, 206, 0.3));
color: #7e22ce;
}
.envelope-title {
font-size: 1.125rem;
font-weight: 700;
color: #1e293b;
letter-spacing: -0.025em;
}
.envelope-key {
font-size: 0.8125rem;
color: #64748b;
font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
font-weight: 500;
margin-top: 0.25rem;
}
.pdf-controls, .pdf-navigation {
display: flex;
align-items: center;
gap: 0.75rem;
}
.zoom-level, .page-info {
font-size: 0.875rem;
font-weight: 600;
color: #475569;
min-width: 60px;
text-align: center;
}
.envelope-content {
flex: 1;
min-height: 0;
padding: 1.5rem;
position: relative;
overflow: auto;
}
.pdf-viewer-container {
height: 100%;
display: flex;
align-items: flex-start;
justify-content: center;
padding: 0;
}
.pdf-frame {
background: white;
border-radius: 16px;
box-shadow:
0 25px 50px -12px rgba(0, 0, 0, 0.25),
0 0 0 1px rgba(255, 255, 255, 0.1);
overflow: auto;
position: relative;
padding: 2rem;
max-height: 100%;
width: auto;
}
.pdf-frame::before {
content: '';
position: absolute;
top: 0;
left: 0;
right: 0;
height: 4px;
background: linear-gradient(90deg, #7e22ce 0%, #2a5298 100%);
z-index: 1;
}
.pdf-canvas {
display: block;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
margin: 0 auto;
}
.error-container {
display: flex;
align-items: center;
justify-content: center;
height: 100%;
padding: 2rem;
}
.alert {
border-radius: 12px;
border: none;
padding: 2rem;
max-width: 600px;
}
.alert-danger {
background: linear-gradient(135deg, #fff1f2 0%, #ffe4e6 100%);
color: #be123c;
border-left: 4px solid #e11d48;
}
.alert-warning {
background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
color: #92400e;
border-left: 4px solid #f59e0b;
}
.spinner-border {
border-width: 0.35rem;
}
@@media (max-width: 768px) {
.envelope-content {
padding: 0.75rem;
}
.pdf-frame {
border-radius: 12px;
padding: 1rem;
}
.envelope-action-bar {
padding: 1rem 1.25rem;
}
.envelope-action-bar__inner {
flex-wrap: wrap;
}
.envelope-title {
font-size: 1rem;
}
.envelope-key {
font-size: 0.75rem;
}
.envelope-logo svg {
width: 20px;
height: 20px;
}
.alert {
padding: 1.5rem;
}
}
</style>
@code {
[Parameter] public string? EnvelopeKey { get; set; }
@@ -293,7 +120,7 @@
protected override async Task OnInitializedAsync() {
if (string.IsNullOrWhiteSpace(EnvelopeKey)) {
_errorMessage = "Envelope-Schlüssel fehlt.";
_errorMessage = "Envelope-Schlüssel fehlt.";
_isLoading = false;
return;
}

View File

@@ -0,0 +1,171 @@
.envelope-viewer-layout {
display: flex;
flex-direction: column;
height: 100vh;
overflow: hidden;
background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #7e22ce 100%);
}
.envelope-action-bar {
background: rgba(255, 255, 255, 0.95);
backdrop-filter: blur(20px);
border-bottom: 3px solid rgba(126, 34, 206, 0.3);
padding: 1.25rem 2rem;
flex-shrink: 0;
box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}
.envelope-action-bar__inner {
max-width: 1600px;
margin: 0 auto;
display: flex;
align-items: center;
gap: 2rem;
}
.envelope-logo svg {
filter: drop-shadow(0 2px 4px rgba(126, 34, 206, 0.3));
color: #7e22ce;
}
.envelope-title {
font-size: 1.125rem;
font-weight: 700;
color: #1e293b;
letter-spacing: -0.025em;
}
.envelope-key {
font-size: 0.8125rem;
color: #64748b;
font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
font-weight: 500;
margin-top: 0.25rem;
}
.pdf-controls, .pdf-navigation {
display: flex;
align-items: center;
gap: 0.75rem;
}
.zoom-level, .page-info {
font-size: 0.875rem;
font-weight: 600;
color: #475569;
min-width: 60px;
text-align: center;
}
.envelope-content {
flex: 1;
min-height: 0;
padding: 1.5rem;
position: relative;
overflow: auto;
}
.pdf-viewer-container {
height: 100%;
display: flex;
align-items: flex-start;
justify-content: center;
padding: 0;
}
.pdf-frame {
background: white;
border-radius: 16px;
box-shadow:
0 25px 50px -12px rgba(0, 0, 0, 0.25),
0 0 0 1px rgba(255, 255, 255, 0.1);
overflow: auto;
position: relative;
padding: 2rem;
max-height: 100%;
width: auto;
}
.pdf-frame::before {
content: '';
position: absolute;
top: 0;
left: 0;
right: 0;
height: 4px;
background: linear-gradient(90deg, #7e22ce 0%, #2a5298 100%);
z-index: 1;
}
.pdf-canvas {
display: block;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
margin: 0 auto;
}
.error-container {
display: flex;
align-items: center;
justify-content: center;
height: 100%;
padding: 2rem;
}
.alert {
border-radius: 12px;
border: none;
padding: 2rem;
max-width: 600px;
}
.alert-danger {
background: linear-gradient(135deg, #fff1f2 0%, #ffe4e6 100%);
color: #be123c;
border-left: 4px solid #e11d48;
}
.alert-warning {
background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
color: #92400e;
border-left: 4px solid #f59e0b;
}
.spinner-border {
border-width: 0.35rem;
}
@media (max-width: 768px) {
.envelope-content {
padding: 0.75rem;
}
.pdf-frame {
border-radius: 12px;
padding: 1rem;
}
.envelope-action-bar {
padding: 1rem 1.25rem;
}
.envelope-action-bar__inner {
flex-wrap: wrap;
}
.envelope-title {
font-size: 1rem;
}
.envelope-key {
font-size: 0.75rem;
}
.envelope-logo svg {
width: 20px;
height: 20px;
}
.alert {
padding: 1.5rem;
}
}