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breadcrumb-the-shire/web/css/components/app-file-upload.css
fs 9a4d59eb4c feat: add reusable app-file-upload component with drag-and-drop and preview
Replace bare <input type="file"> across all upload locations with a
card-based dropzone component via shared partial. Three visual states:
current server file (thumbnail + Replace/Delete), empty dropzone, and
pending file preview (local FileReader thumbnail + metadata). Delete
actions use data-confirm-message for confirmation dialog.

Centralized as templates/partials/app-file-upload.phtml to prevent
markup drift — documented as deliberate exception to plain-HTML inputs
convention in CLAUDE.md and developer checklist.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-06 11:58:14 +02:00

246 lines
6.2 KiB
CSS

@layer components {
/* File upload — card-based dropzone with drag-and-drop, current file preview, and pending file preview. */
.app-file-upload {
position: relative;
border: 1px solid var(--app-muted-border-color);
border-radius: var(--app-border-radius);
background: var(--app-card-background-color);
overflow: hidden;
transition: border-color 0.15s ease;
margin-bottom: var(--app-spacing);
}
.app-file-upload.is-dragover {
border-color: var(--app-primary);
background: color-mix(in srgb, var(--app-primary) 5%, var(--app-card-background-color));
}
/* ── Current file (server-side, shown when data-current-src is set) ── */
.app-file-upload-current {
display: flex;
align-items: center;
gap: calc(var(--app-spacing) * 0.75);
padding: calc(var(--app-spacing) * 0.75);
}
.app-file-upload-current-image {
width: 48px;
height: 48px;
border-radius: calc(var(--app-border-radius) * 0.5);
object-fit: cover;
flex-shrink: 0;
border: 1px solid var(--app-muted-border-color);
background: var(--app-background-color);
}
.app-file-upload-current-meta {
flex: 1;
min-width: 0;
display: flex;
flex-direction: column;
gap: 2px;
}
.app-file-upload-current-label {
font-size: var(--text-sm);
font-weight: var(--font-medium);
color: var(--app-contrast);
}
.app-file-upload-current-actions {
display: flex;
gap: calc(var(--app-spacing) * 0.25);
}
.app-file-upload-current-actions button {
background: none;
border: none;
padding: calc(var(--app-spacing) * 0.15) calc(var(--app-spacing) * 0.35);
cursor: pointer;
font-size: var(--text-xs);
border-radius: var(--app-border-radius);
transition: color 0.15s ease, background 0.15s ease;
margin: 0;
width: auto;
line-height: var(--leading-normal);
}
.app-file-upload-replace-button {
color: var(--app-primary);
}
.app-file-upload-replace-button:hover {
background: color-mix(in srgb, var(--app-primary) 10%, transparent);
}
.app-file-upload-delete-button {
color: var(--app-del-color);
}
.app-file-upload-delete-button:hover {
background: color-mix(in srgb, var(--app-del-color) 10%, transparent);
}
.app-file-upload.has-current .app-file-upload-dropzone {
display: none;
}
.app-file-upload:not(.has-current) .app-file-upload-current {
display: none;
}
/* ── Dropzone (visible when no current file and no pending file) ── */
.app-file-upload-dropzone {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
gap: calc(var(--app-spacing) * 0.5);
padding: calc(var(--app-spacing) * 1.5) var(--app-spacing);
cursor: pointer;
text-align: center;
color: var(--app-muted-color);
border: 2px dashed var(--app-muted-border-color);
border-radius: var(--app-border-radius);
margin: calc(var(--app-spacing) * 0.5);
transition: border-color 0.15s ease, color 0.15s ease;
}
.app-file-upload.is-dragover .app-file-upload-dropzone {
border-color: var(--app-primary);
color: var(--app-primary);
}
.app-file-upload-dropzone:hover {
border-color: var(--app-primary);
color: var(--app-primary);
}
.app-file-upload-dropzone-icon {
font-size: var(--text-2xl);
line-height: var(--leading-none);
}
.app-file-upload-dropzone-label {
font-size: var(--text-sm);
font-weight: var(--font-medium);
}
.app-file-upload-dropzone-hint {
font-size: var(--text-xs);
opacity: 0.7;
}
.app-file-upload.has-file .app-file-upload-dropzone,
.app-file-upload.has-file .app-file-upload-current {
display: none;
}
.app-file-upload.is-rejected {
animation: file-upload-shake 0.4s ease;
}
.app-file-upload.is-rejected .app-file-upload-dropzone {
border-color: var(--app-del-color);
color: var(--app-del-color);
}
@keyframes file-upload-shake {
0%, 100% { transform: translateX(0); }
20% { transform: translateX(-4px); }
40% { transform: translateX(4px); }
60% { transform: translateX(-2px); }
80% { transform: translateX(2px); }
}
/* ── Pending file preview (visible when new file selected) ── */
.app-file-upload-preview {
display: none;
align-items: center;
gap: calc(var(--app-spacing) * 0.75);
padding: calc(var(--app-spacing) * 0.75);
}
.app-file-upload.has-file .app-file-upload-preview {
display: flex;
}
.app-file-upload-thumbnail {
width: 48px;
height: 48px;
border-radius: calc(var(--app-border-radius) * 0.5);
object-fit: cover;
flex-shrink: 0;
border: 1px solid var(--app-muted-border-color);
background: var(--app-background-color);
}
.app-file-upload-file-icon {
width: 48px;
height: 48px;
border-radius: calc(var(--app-border-radius) * 0.5);
flex-shrink: 0;
display: inline-flex;
align-items: center;
justify-content: center;
font-size: var(--text-xl);
color: var(--app-muted-color);
background: var(--app-background-color);
border: 1px solid var(--app-muted-border-color);
}
.app-file-upload-meta {
flex: 1;
min-width: 0;
display: flex;
flex-direction: column;
gap: 2px;
}
.app-file-upload-filename {
font-size: var(--text-sm);
font-weight: var(--font-medium);
color: var(--app-contrast);
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.app-file-upload-filesize {
font-size: var(--text-xs);
color: var(--app-muted-color);
}
.app-file-upload-clear {
flex-shrink: 0;
background: none;
border: none;
padding: calc(var(--app-spacing) * 0.25);
cursor: pointer;
color: var(--app-muted-color);
font-size: var(--text-base);
line-height: var(--leading-none);
border-radius: var(--app-border-radius);
transition: color 0.15s ease;
margin: 0;
width: auto;
}
.app-file-upload-clear:hover {
color: var(--app-del-color);
}
/* ── Hidden native input ── */
.app-file-upload input[type="file"] {
position: absolute;
width: 1px;
height: 1px;
padding: 0;
margin: -1px;
overflow: hidden;
clip: rect(0, 0, 0, 0);
white-space: nowrap;
border: 0;
}
}