feat(ui): add pdf.js viewer, image zoom/pan, text preview, and preview modal

- Replace iframe in file_view.html with pdf.js for PDF files
- Add image viewer with zoom/pan controls to file_view.html
- Add text file viewer with line numbers to file_view.html
- Add preview side-panel modal to files.html (file list)
- Fix file_detail.html bottom preview section variable names
- Add aria-labels and WCAG compliance to all new elements

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
This commit is contained in:
copilot-swe-agent[bot]
2026-03-01 07:32:30 +00:00
parent 3dbca56074
commit 372e8cdff1
3 changed files with 571 additions and 34 deletions
+22 -12
View File
@@ -1528,11 +1528,11 @@
{% endif %}
<!-- File Preview Card -->
{% if file_exists or processed_exists %}
{% if original_file_exists or processed_file_exists %}
<div class="detail-card">
<h3>File Previews</h3>
<div style="display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 2rem;">
{% if file_exists %}
{% if original_file_exists %}
<div>
<h4 style="font-weight: 600; color: #2d3748; margin-bottom: 1rem;">Original File</h4>
<div style="border: 2px solid #e2e8f0; border-radius: 0.5rem; overflow: hidden; background-color: #f7fafc;">
@@ -1541,36 +1541,46 @@
<img src="/api/files/{{ file.id }}/preview?version=original" alt="{{ file.original_filename }}" style="width: 100%; height: auto; display: block;">
{% elif file.mime_type and file.mime_type.startswith('text/') %}
<!-- Text file preview -->
<iframe src="/api/files/{{ file.id }}/preview?version=original" style="width: 100%; height: 600px; border: none;"></iframe>
<iframe src="/api/files/{{ file.id }}/preview?version=original" title="Original text file preview" style="width: 100%; height: 600px; border: none;"></iframe>
{% else %}
<!-- PDF and other documents -->
<iframe src="/api/files/{{ file.id }}/preview?version=original" style="width: 100%; height: 600px; border: none;"></iframe>
<!-- PDF via pdf.js (rendered by loadPDF above) — fallback canvas container -->
<div id="detail-original-canvas" class="pdf-canvas-wrapper" style="min-height: 400px; display: flex; justify-content: center; align-items: center; padding: 0.5rem;">
<div class="pdf-loading">
<i class="fas fa-spinner fa-spin" aria-hidden="true" style="font-size: 2rem; margin-bottom: 1rem;"></i>
<p>See PDF viewer above</p>
</div>
</div>
{% endif %}
</div>
<div style="margin-top: 0.5rem; text-align: center; display: flex; gap: 1rem; justify-content: center;">
<a href="/api/files/{{ file.id }}/preview?version=original" target="_blank" style="color: #3182ce; text-decoration: none; font-size: 0.875rem;">
<i class="fas fa-external-link-alt"></i> Open in new tab
<i class="fas fa-external-link-alt" aria-hidden="true"></i> Open in new tab
</a>
<a href="/api/files/{{ file.id }}/download?version=original" style="color: #3182ce; text-decoration: none; font-size: 0.875rem;">
<i class="fas fa-download"></i> Download
<i class="fas fa-download" aria-hidden="true"></i> Download
</a>
</div>
</div>
{% endif %}
{% if processed_exists %}
{% if processed_file_exists %}
<div>
<h4 style="font-weight: 600; color: #2d3748; margin-bottom: 1rem;">Processed File</h4>
<div style="border: 2px solid #e2e8f0; border-radius: 0.5rem; overflow: hidden; background-color: #f7fafc;">
<!-- Processed files are typically PDFs -->
<iframe src="/api/files/{{ file.id }}/preview?version=processed" style="width: 100%; height: 600px; border: none;"></iframe>
<!-- Processed files are typically PDFs — rendered by pdf.js above -->
<div style="min-height: 400px; display: flex; justify-content: center; align-items: center; padding: 0.5rem;">
<div class="pdf-loading">
<i class="fas fa-spinner fa-spin" aria-hidden="true" style="font-size: 2rem; margin-bottom: 1rem;"></i>
<p>See PDF viewer above</p>
</div>
</div>
</div>
<div style="margin-top: 0.5rem; text-align: center; display: flex; gap: 1rem; justify-content: center;">
<a href="/api/files/{{ file.id }}/preview?version=processed" target="_blank" style="color: #3182ce; text-decoration: none; font-size: 0.875rem;">
<i class="fas fa-external-link-alt"></i> Open in new tab
<i class="fas fa-external-link-alt" aria-hidden="true"></i> Open in new tab
</a>
<a href="/api/files/{{ file.id }}/download?version=processed" style="color: #3182ce; text-decoration: none; font-size: 0.875rem;">
<i class="fas fa-download"></i> Download
<i class="fas fa-download" aria-hidden="true"></i> Download
</a>
</div>
</div>
+278 -22
View File
@@ -3,6 +3,11 @@
{% block head_extra %}
<script src="/static/js/common.js"></script>
<!-- PDF.js library (Apache 2.0 License - compatible) -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.min.js"></script>
<script>
pdfjsLib.GlobalWorkerOptions.workerSrc = 'https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.worker.min.js';
</script>
<style>
.doc-container { max-width: 1200px; margin: 0 auto; }
@@ -51,7 +56,61 @@
/* ── tags ── */
.tag-pill { display: inline-block; padding: 0.15rem 0.6rem; border-radius: 9999px; font-size: 0.75rem; font-weight: 500; background: #f0fdf4; color: #15803d; margin: 0.1rem; }
/* ── preview iframe ── */
/* ── pdf.js viewer ── */
.pdf-viewer { position: relative; background: #525659; border-radius: 0.375rem; overflow: hidden; }
.pdf-controls {
display: flex; align-items: center; justify-content: center; gap: 0.75rem;
padding: 0.5rem; background: #f1f5f9; border-radius: 0.375rem 0.375rem 0 0;
}
.pdf-nav-btn {
padding: 0.35rem 0.75rem; border: 1px solid #cbd5e1; border-radius: 0.25rem;
background: white; color: #374151; font-size: 0.8rem; cursor: pointer;
min-height: 36px; min-width: 36px;
}
.pdf-nav-btn:disabled { opacity: 0.4; cursor: default; }
.pdf-nav-btn:hover:not(:disabled) { background: #e2e8f0; }
.pdf-page-info { font-size: 0.8rem; color: #374151; font-weight: 600; min-width: 100px; text-align: center; }
.pdf-canvas-wrap { display: flex; justify-content: center; padding: 0.75rem; min-height: 400px; max-height: 700px; overflow: auto; }
.pdf-canvas-wrap canvas { max-width: 100%; height: auto; }
/* ── image viewer with zoom/pan ── */
.img-viewer { position: relative; background: #f1f5f9; border-radius: 0.375rem; overflow: hidden; }
.img-controls {
display: flex; align-items: center; justify-content: center; gap: 0.5rem;
padding: 0.5rem; background: #f1f5f9; border-radius: 0.375rem 0.375rem 0 0;
}
.img-controls button {
padding: 0.35rem 0.6rem; border: 1px solid #cbd5e1; border-radius: 0.25rem;
background: white; color: #374151; font-size: 0.85rem; cursor: pointer;
min-height: 36px; min-width: 36px;
}
.img-controls button:hover { background: #e2e8f0; }
.img-wrap {
display: flex; justify-content: center; align-items: center;
overflow: auto; max-height: 650px; min-height: 300px; cursor: grab;
padding: 0.5rem; background: #525659;
}
.img-wrap.dragging { cursor: grabbing; }
.img-wrap img { transition: transform 0.15s ease; transform-origin: center center; }
/* ── text viewer ── */
.text-viewer { border-radius: 0.375rem; overflow: hidden; }
.text-viewer-header {
display: flex; align-items: center; justify-content: space-between;
padding: 0.5rem 0.75rem; background: #f1f5f9; border-radius: 0.375rem 0.375rem 0 0;
}
.text-viewer-header span { font-size: 0.8rem; color: #374151; font-weight: 600; }
.text-content {
background: #1e293b; color: #e2e8f0; padding: 1rem; font-family: 'SFMono-Regular', Consolas, monospace;
font-size: 0.82rem; line-height: 1.65; max-height: 600px; overflow: auto; white-space: pre-wrap; word-break: break-word;
tab-size: 4;
}
.text-content .line-number {
display: inline-block; width: 3.5em; color: #64748b; text-align: right;
margin-right: 1em; user-select: none; font-size: 0.75rem;
}
/* ── preview iframe fallback ── */
.preview-frame { width: 100%; height: 600px; border: none; border-radius: 0.375rem; background: #f1f5f9; display: block; }
/* ── text box ── */
@@ -271,27 +330,75 @@
</div>
</div>
<!-- RIGHT: PDF preview -->
<!-- RIGHT: Document preview -->
<div>
<div class="doc-card" style="padding:1rem;">
{% set preview_mime = file.mime_type or 'application/pdf' %}
{% set preview_version = 'processed' if processed_file_exists else 'original' %}
{% set has_preview = processed_file_exists or original_file_exists %}
{% if preview_mime.startswith('image/') %}
<div class="doc-card-title"><i class="fas fa-image" aria-hidden="true" style="color:#8b5cf6;margin-right:0.4rem;"></i>Preview</div>
{% elif preview_mime.startswith('text/') %}
<div class="doc-card-title"><i class="fas fa-file-code" aria-hidden="true" style="color:#059669;margin-right:0.4rem;"></i>Preview</div>
{% else %}
<div class="doc-card-title"><i class="fas fa-file-pdf" aria-hidden="true" style="color:#ef4444;margin-right:0.4rem;"></i>Preview</div>
{% if processed_file_exists %}
<iframe
src="/api/files/{{ file.id }}/preview?version=processed"
class="preview-frame"
title="Processed document preview">
</iframe>
<div style="font-size:0.75rem;color:#9ca3af;margin-top:0.4rem;text-align:right;">Processed version</div>
{% elif original_file_exists %}
<iframe
src="/api/files/{{ file.id }}/preview?version=original"
class="preview-frame"
title="Original document preview">
</iframe>
<div style="font-size:0.75rem;color:#9ca3af;margin-top:0.4rem;text-align:right;">Original version</div>
{% endif %}
{% if has_preview %}
{% if preview_mime.startswith('image/') %}
<!-- ── Image viewer with zoom / pan ── -->
<div class="img-viewer" id="img-viewer">
<div class="img-controls">
<button onclick="imgZoom(1.25)" title="Zoom in" aria-label="Zoom in"><i class="fas fa-search-plus" aria-hidden="true"></i></button>
<button onclick="imgZoom(0.8)" title="Zoom out" aria-label="Zoom out"><i class="fas fa-search-minus" aria-hidden="true"></i></button>
<button onclick="imgReset()" title="Reset zoom" aria-label="Reset zoom"><i class="fas fa-expand" aria-hidden="true"></i></button>
<span id="img-zoom-level" style="font-size:0.8rem;color:#6b7280;min-width:3em;text-align:center;">100%</span>
</div>
<div class="img-wrap" id="img-wrap">
<img
id="preview-img"
src="/api/files/{{ file.id }}/preview?version={{ preview_version }}"
alt="{{ file.original_filename }}"
draggable="false"
style="max-width:100%;height:auto;">
</div>
</div>
{% elif preview_mime.startswith('text/') %}
<!-- ── Text file viewer with line numbers ── -->
<div class="text-viewer" id="text-viewer">
<div class="text-viewer-header">
<span><i class="fas fa-file-code" aria-hidden="true" style="margin-right:0.3rem;"></i>{{ file.original_filename }}</span>
<button class="text-toggle" onclick="copyTextPreview()" id="text-copy-btn" aria-label="Copy file text">
<i class="fas fa-copy" aria-hidden="true"></i> Copy
</button>
</div>
<div class="text-content" id="text-preview-content" aria-live="polite">
<div style="text-align:center;padding:2rem;color:#94a3b8;"><i class="fas fa-spinner fa-spin" aria-hidden="true"></i> Loading…</div>
</div>
</div>
{% else %}
<!-- ── PDF viewer (pdf.js) ── -->
<div class="pdf-viewer" id="pdf-viewer">
<div class="pdf-controls">
<button class="pdf-nav-btn" onclick="pdfChangePage(-1)" id="pdf-prev-btn" aria-label="Previous page"><i class="fas fa-chevron-left" aria-hidden="true"></i></button>
<span class="pdf-page-info" id="pdf-page-info" aria-live="polite">Loading…</span>
<button class="pdf-nav-btn" onclick="pdfChangePage(1)" id="pdf-next-btn" aria-label="Next page"><i class="fas fa-chevron-right" aria-hidden="true"></i></button>
</div>
<div class="pdf-canvas-wrap" id="pdf-canvas-wrap">
<div style="text-align:center;padding:3rem;color:#94a3b8;">
<i class="fas fa-spinner fa-spin" aria-hidden="true" style="font-size:2rem;margin-bottom:0.75rem;"></i>
<p>Loading PDF…</p>
</div>
</div>
</div>
{% endif %}
<div style="font-size:0.75rem;color:#9ca3af;margin-top:0.4rem;text-align:right;">{{ 'Processed' if processed_file_exists else 'Original' }} version</div>
{% else %}
<div style="display:flex;flex-direction:column;align-items:center;justify-content:center;height:300px;background:#f9fafb;border-radius:0.375rem;color:#9ca3af;">
<i class="fas fa-file-pdf" style="font-size:3rem;margin-bottom:1rem;opacity:0.4;"></i>
<i class="fas fa-file" aria-hidden="true" style="font-size:3rem;margin-bottom:1rem;opacity:0.4;"></i>
<p>No file available for preview</p>
</div>
{% endif %}
@@ -338,7 +445,7 @@
</div>
<script>
// Toggle inline OCR text visibility
// ── Toggle inline OCR text visibility ──
function toggleOcrText() {
var block = document.getElementById('ocr-text-block');
var icon = document.getElementById('ocr-toggle-icon');
@@ -357,7 +464,7 @@
}
}
// Copy OCR text to clipboard
// ── Copy OCR text to clipboard ──
function copyOcrText() {
var content = document.getElementById('ocr-text-content');
if (!content) return;
@@ -369,8 +476,6 @@
btn.innerHTML = '<i class="fas fa-check"></i> Copied!';
setTimeout(function() { btn.innerHTML = orig; }, 2000);
}).catch(function() {
// Legacy clipboard fallback for browsers without Secure Context / navigator.clipboard
// (pre-2018 environments, e.g. HTTP-only or older Safari). Retained for maximum compatibility.
try {
var ta = document.createElement('textarea');
ta.value = text;
@@ -385,7 +490,7 @@
});
}
// On-demand text extraction (when ocr_text not in DB)
// ── On-demand text extraction (when ocr_text not in DB) ──
var _textCache = null;
function loadText(fileId) {
var area = document.getElementById('text-load-area');
@@ -414,5 +519,156 @@
pre.textContent = text;
container.appendChild(pre);
}
// ── PDF.js viewer ──
var _pdfState = { doc: null, page: 1, total: 0 };
function pdfInit(url) {
var wrap = document.getElementById('pdf-canvas-wrap');
if (!wrap) return;
pdfjsLib.getDocument(url).promise.then(function(pdf) {
_pdfState.doc = pdf;
_pdfState.total = pdf.numPages;
_pdfState.page = 1;
pdfRenderPage();
}).catch(function() {
wrap.innerHTML = '<div style="text-align:center;padding:2rem;color:#f87171;"><i class="fas fa-exclamation-triangle" style="font-size:2rem;margin-bottom:0.5rem;"></i><p>Failed to load PDF</p></div>';
});
}
function pdfRenderPage() {
var wrap = document.getElementById('pdf-canvas-wrap');
if (!_pdfState.doc || !wrap) return;
_pdfState.doc.getPage(_pdfState.page).then(function(page) {
var vp = page.getViewport({ scale: 1.0 });
var scale = Math.min(wrap.clientWidth / vp.width, 2.0);
var svp = page.getViewport({ scale: scale });
var canvas = document.createElement('canvas');
canvas.width = svp.width;
canvas.height = svp.height;
canvas.style.maxWidth = '100%';
canvas.style.height = 'auto';
wrap.innerHTML = '';
wrap.appendChild(canvas);
page.render({ canvasContext: canvas.getContext('2d'), viewport: svp });
pdfUpdateInfo();
});
}
function pdfChangePage(delta) {
var np = _pdfState.page + delta;
if (np >= 1 && np <= _pdfState.total) {
_pdfState.page = np;
pdfRenderPage();
}
}
function pdfUpdateInfo() {
var info = document.getElementById('pdf-page-info');
if (info) info.textContent = 'Page ' + _pdfState.page + ' of ' + _pdfState.total;
var prev = document.getElementById('pdf-prev-btn');
var next = document.getElementById('pdf-next-btn');
if (prev) prev.disabled = _pdfState.page <= 1;
if (next) next.disabled = _pdfState.page >= _pdfState.total;
}
// ── Image viewer with zoom / pan ──
var _imgScale = 1;
function imgZoom(factor) {
_imgScale = Math.max(0.25, Math.min(5, _imgScale * factor));
var img = document.getElementById('preview-img');
if (img) img.style.transform = 'scale(' + _imgScale + ')';
var label = document.getElementById('img-zoom-level');
if (label) label.textContent = Math.round(_imgScale * 100) + '%';
}
function imgReset() {
_imgScale = 1;
var img = document.getElementById('preview-img');
if (img) img.style.transform = 'scale(1)';
var label = document.getElementById('img-zoom-level');
if (label) label.textContent = '100%';
}
// Mouse-drag panning for image viewer
(function() {
var wrap = document.getElementById('img-wrap');
if (!wrap) return;
var dragging = false, startX, startY, scrollL, scrollT;
wrap.addEventListener('mousedown', function(e) {
dragging = true; wrap.classList.add('dragging');
startX = e.pageX - wrap.offsetLeft; startY = e.pageY - wrap.offsetTop;
scrollL = wrap.scrollLeft; scrollT = wrap.scrollTop;
});
wrap.addEventListener('mousemove', function(e) {
if (!dragging) return; e.preventDefault();
wrap.scrollLeft = scrollL - (e.pageX - wrap.offsetLeft - startX);
wrap.scrollTop = scrollT - (e.pageY - wrap.offsetTop - startY);
});
wrap.addEventListener('mouseup', function() { dragging = false; wrap.classList.remove('dragging'); });
wrap.addEventListener('mouseleave', function() { dragging = false; wrap.classList.remove('dragging'); });
// Mouse wheel zoom
wrap.addEventListener('wheel', function(e) {
e.preventDefault();
imgZoom(e.deltaY < 0 ? 1.1 : 0.9);
}, { passive: false });
})();
// ── Text file viewer ──
function loadTextPreview(url) {
var container = document.getElementById('text-preview-content');
if (!container) return;
fetch(url)
.then(function(r) { if (!r.ok) throw new Error('HTTP ' + r.status); return r.text(); })
.then(function(text) {
container.innerHTML = '';
var lines = text.split('\n');
for (var i = 0; i < lines.length; i++) {
var lineEl = document.createElement('div');
var numSpan = document.createElement('span');
numSpan.className = 'line-number';
numSpan.textContent = (i + 1) + '';
lineEl.appendChild(numSpan);
lineEl.appendChild(document.createTextNode(lines[i]));
container.appendChild(lineEl);
}
})
.catch(function() {
container.innerHTML = '<div style="color:#f87171;padding:1rem;">Failed to load file content</div>';
});
}
function copyTextPreview() {
var container = document.getElementById('text-preview-content');
if (!container) return;
var lines = container.querySelectorAll('div');
var text = [];
lines.forEach(function(line) {
var clone = line.cloneNode(true);
var num = clone.querySelector('.line-number');
if (num) num.remove();
text.push(clone.textContent);
});
var btn = document.getElementById('text-copy-btn');
var orig = btn.innerHTML;
navigator.clipboard.writeText(text.join('\n')).then(function() {
btn.innerHTML = '<i class="fas fa-check"></i> Copied!';
setTimeout(function() { btn.innerHTML = orig; }, 2000);
}).catch(function() {});
}
// ── Initialise on load ──
document.addEventListener('DOMContentLoaded', function() {
{% if (processed_file_exists or original_file_exists) and file %}
{% set pv = 'processed' if processed_file_exists else 'original' %}
{% set pm = file.mime_type or 'application/pdf' %}
{% if pm.startswith('text/') %}
loadTextPreview('/api/files/{{ file.id }}/preview?version={{ pv }}');
{% elif not pm.startswith('image/') %}
pdfInit('/api/files/{{ file.id }}/preview?version={{ pv }}');
{% endif %}
{% endif %}
});
</script>
{% endblock %}
+271
View File
@@ -3,6 +3,11 @@
{% block head_extra %}
<script src="/static/js/common.js"></script>
<!-- PDF.js library for in-browser PDF preview -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.min.js"></script>
<script>
pdfjsLib.GlobalWorkerOptions.workerSrc = 'https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.worker.min.js';
</script>
<script>
window.uploadConfig = {
concurrency: {{ upload_concurrency }},
@@ -340,6 +345,80 @@
border-radius: 0.25rem;
margin-bottom: 1rem;
}
/* ── Preview modal (side panel) ── */
.preview-overlay {
display: none; position: fixed; inset: 0; z-index: 1000;
background: rgba(0,0,0,0.5); justify-content: flex-end;
}
.preview-overlay.active { display: flex; }
.preview-panel {
width: 55%; max-width: 720px; min-width: 340px; height: 100%;
background: white; box-shadow: -4px 0 20px rgba(0,0,0,0.15);
display: flex; flex-direction: column; animation: slideIn 0.2s ease;
}
@keyframes slideIn { from { transform: translateX(100%); } to { transform: translateX(0); } }
@media (max-width: 768px) { .preview-panel { width: 100%; max-width: 100%; } }
.preview-panel-header {
display: flex; align-items: center; justify-content: space-between;
padding: 0.75rem 1rem; border-bottom: 1px solid #e5e7eb; flex-shrink: 0;
}
.preview-panel-header h3 { font-size: 1rem; font-weight: 600; color: #1f2937; margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.preview-panel-close {
background: none; border: none; cursor: pointer; padding: 0.5rem;
color: #6b7280; font-size: 1.25rem; min-height: 44px; min-width: 44px;
display: flex; align-items: center; justify-content: center;
}
.preview-panel-close:hover { color: #1f2937; }
.preview-panel-body { flex: 1; overflow: auto; padding: 0; background: #f9fafb; }
.preview-panel-footer {
display: flex; align-items: center; justify-content: center; gap: 0.75rem;
padding: 0.75rem 1rem; border-top: 1px solid #e5e7eb; flex-shrink: 0;
}
.preview-panel-footer a, .preview-panel-footer button {
display: inline-flex; align-items: center; gap: 0.3rem;
padding: 0.4rem 0.9rem; border-radius: 0.25rem; font-size: 0.85rem; font-weight: 600;
text-decoration: none; cursor: pointer; border: 1px solid #d1d5db; background: white; color: #374151;
min-height: 40px;
}
.preview-panel-footer a:hover, .preview-panel-footer button:hover { background: #f3f4f6; }
/* PDF controls inside preview modal */
.pm-pdf-controls {
display: flex; align-items: center; justify-content: center; gap: 0.5rem;
padding: 0.5rem; background: #f1f5f9; border-bottom: 1px solid #e2e8f0;
}
.pm-pdf-controls button {
padding: 0.3rem 0.6rem; border: 1px solid #cbd5e1; border-radius: 0.25rem;
background: white; cursor: pointer; font-size: 0.8rem; min-height: 36px; min-width: 36px;
}
.pm-pdf-controls button:disabled { opacity: 0.4; cursor: default; }
.pm-canvas-wrap { display: flex; justify-content: center; padding: 0.5rem; min-height: 300px; overflow: auto; }
.pm-canvas-wrap canvas { max-width: 100%; height: auto; }
/* Image in preview modal */
.pm-img-controls {
display: flex; align-items: center; justify-content: center; gap: 0.5rem;
padding: 0.5rem; background: #f1f5f9; border-bottom: 1px solid #e2e8f0;
}
.pm-img-controls button {
padding: 0.3rem 0.6rem; border: 1px solid #cbd5e1; border-radius: 0.25rem;
background: white; cursor: pointer; font-size: 0.85rem; min-height: 36px; min-width: 36px;
}
.pm-img-wrap {
display: flex; justify-content: center; align-items: center;
overflow: auto; cursor: grab; flex: 1; padding: 0.5rem; background: #525659;
}
.pm-img-wrap.dragging { cursor: grabbing; }
.pm-img-wrap img { transition: transform 0.15s ease; max-width: 100%; height: auto; }
/* Text in preview modal */
.pm-text-content {
background: #1e293b; color: #e2e8f0; padding: 1rem; font-family: 'SFMono-Regular', Consolas, monospace;
font-size: 0.82rem; line-height: 1.65; min-height: 300px; white-space: pre-wrap; word-break: break-word;
tab-size: 4;
}
.pm-line-number {
display: inline-block; width: 3.5em; color: #64748b; text-align: right;
margin-right: 1em; user-select: none; font-size: 0.75rem;
}
</style>
{% endblock %}
@@ -582,6 +661,9 @@
<td>{{ file.created_at.strftime('%Y-%m-%d %H:%M:%S') if file.created_at else 'N/A' }}</td>
<td>
<div style="display: flex; align-items: center;">
<button onclick="openPreviewModal({{ file.id }}, '{{ file.mime_type or '' }}', '{{ file.original_filename | e }}', event)" class="action-btn" title="Quick preview" aria-label="Preview {{ file.original_filename }}" style="min-height:44px;min-width:44px;">
<i class="fas fa-eye" aria-hidden="true"></i>
</button>
<button onclick="viewFileDetail({{ file.id }}, event)" class="action-btn" title="View details" aria-label="View details for {{ file.original_filename }}" style="min-height:44px;min-width:44px;">
<i class="fas fa-info-circle" aria-hidden="true"></i>
</button>
@@ -621,6 +703,9 @@
<div class="flex flex-col items-end gap-2 flex-shrink-0">
<span class="status-badge status-{{ file.processing_status }}">{{ file.processing_status | title }}</span>
<div class="flex gap-1" role="group" aria-label="File actions" onclick="event.stopPropagation();" onkeydown="event.stopPropagation();">
<button onclick="openPreviewModal({{ file.id }}, '{{ file.mime_type or '' }}', '{{ file.original_filename | e }}', event)" class="action-btn" title="Quick preview" aria-label="Preview {{ file.original_filename }}" style="min-height:44px;min-width:44px;">
<i class="fas fa-eye" aria-hidden="true"></i>
</button>
<button onclick="viewFileDetail({{ file.id }}, event)" class="action-btn" title="View details" aria-label="View details for {{ file.original_filename }}" style="min-height:44px;min-width:44px;">
<i class="fas fa-info-circle" aria-hidden="true"></i>
</button>
@@ -676,6 +761,24 @@
</div>
</div>
<!-- Preview side-panel modal -->
<div id="previewOverlay" class="preview-overlay" role="dialog" aria-modal="true" aria-labelledby="previewTitle">
<div class="preview-panel">
<div class="preview-panel-header">
<h3 id="previewTitle">Preview</h3>
<button class="preview-panel-close" onclick="closePreviewModal()" aria-label="Close preview">
<i class="fas fa-times" aria-hidden="true"></i>
</button>
</div>
<div class="preview-panel-body" id="previewBody" aria-live="polite">
<div style="display:flex;align-items:center;justify-content:center;height:100%;color:#9ca3af;">
<i class="fas fa-spinner fa-spin" aria-hidden="true" style="font-size:2rem;"></i>
</div>
</div>
<div class="preview-panel-footer" id="previewFooter"></div>
</div>
</div>
<script>
// Modal functionality
const deleteModal = document.getElementById('deleteModal');
@@ -694,6 +797,174 @@
window.location.href = `/files/${fileId}/detail`;
}
// ── Preview modal ──
let _pmPdf = { doc: null, page: 1, total: 0 };
let _pmImgScale = 1;
function openPreviewModal(fileId, mime, filename, event) {
if (event) event.stopPropagation();
const overlay = document.getElementById('previewOverlay');
const title = document.getElementById('previewTitle');
const body = document.getElementById('previewBody');
const footer = document.getElementById('previewFooter');
title.textContent = filename || 'Preview';
body.innerHTML = '<div style="display:flex;align-items:center;justify-content:center;height:300px;color:#9ca3af;"><i class="fas fa-spinner fa-spin" style="font-size:2rem;"></i></div>';
footer.innerHTML = '';
_pmPdf = { doc: null, page: 1, total: 0 };
_pmImgScale = 1;
overlay.classList.add('active');
document.body.style.overflow = 'hidden';
const previewUrl = `/api/files/${fileId}/preview?version=processed`;
footer.innerHTML =
`<a href="/files/${fileId}" aria-label="Open full view"><i class="fas fa-expand" aria-hidden="true"></i> Full view</a>` +
`<a href="/api/files/${fileId}/download?version=processed" aria-label="Download file"><i class="fas fa-download" aria-hidden="true"></i> Download</a>`;
if (mime && mime.startsWith('image/')) {
_pmRenderImage(body, previewUrl, filename);
} else if (mime && mime.startsWith('text/')) {
_pmRenderText(body, previewUrl);
} else {
_pmRenderPdf(body, previewUrl);
}
}
function closePreviewModal() {
const overlay = document.getElementById('previewOverlay');
overlay.classList.remove('active');
document.body.style.overflow = '';
_pmPdf = { doc: null, page: 1, total: 0 };
}
// PDF rendering inside preview modal
function _pmRenderPdf(body, url) {
body.innerHTML =
'<div class="pm-pdf-controls">' +
'<button onclick="_pmPdfPage(-1)" id="pm-prev" aria-label="Previous page"><i class="fas fa-chevron-left" aria-hidden="true"></i></button>' +
'<span id="pm-page-info" style="font-size:0.8rem;min-width:100px;text-align:center;">Loading…</span>' +
'<button onclick="_pmPdfPage(1)" id="pm-next" aria-label="Next page"><i class="fas fa-chevron-right" aria-hidden="true"></i></button>' +
'</div>' +
'<div class="pm-canvas-wrap" id="pm-canvas-wrap"><div style="text-align:center;padding:3rem;color:#94a3b8;"><i class="fas fa-spinner fa-spin" style="font-size:2rem;"></i></div></div>';
pdfjsLib.getDocument(url).promise.then(function(pdf) {
_pmPdf.doc = pdf;
_pmPdf.total = pdf.numPages;
_pmPdf.page = 1;
_pmPdfRender();
}).catch(function() {
document.getElementById('pm-canvas-wrap').innerHTML = '<div style="text-align:center;padding:2rem;color:#f87171;"><i class="fas fa-exclamation-triangle" style="font-size:2rem;margin-bottom:0.5rem;"></i><p>Failed to load PDF</p></div>';
});
}
function _pmPdfRender() {
var wrap = document.getElementById('pm-canvas-wrap');
if (!_pmPdf.doc || !wrap) return;
_pmPdf.doc.getPage(_pmPdf.page).then(function(page) {
var vp = page.getViewport({ scale: 1.0 });
var scale = Math.min((wrap.clientWidth - 16) / vp.width, 2.0);
var svp = page.getViewport({ scale: scale });
var canvas = document.createElement('canvas');
canvas.width = svp.width;
canvas.height = svp.height;
canvas.style.maxWidth = '100%';
canvas.style.height = 'auto';
wrap.innerHTML = '';
wrap.appendChild(canvas);
page.render({ canvasContext: canvas.getContext('2d'), viewport: svp });
_pmPdfUpdateInfo();
});
}
function _pmPdfPage(delta) {
var np = _pmPdf.page + delta;
if (np >= 1 && np <= _pmPdf.total) { _pmPdf.page = np; _pmPdfRender(); }
}
function _pmPdfUpdateInfo() {
var info = document.getElementById('pm-page-info');
if (info) info.textContent = 'Page ' + _pmPdf.page + ' of ' + _pmPdf.total;
var prev = document.getElementById('pm-prev');
var next = document.getElementById('pm-next');
if (prev) prev.disabled = _pmPdf.page <= 1;
if (next) next.disabled = _pmPdf.page >= _pmPdf.total;
}
// Image rendering inside preview modal
function _pmRenderImage(body, url, alt) {
body.innerHTML =
'<div class="pm-img-controls">' +
'<button onclick="_pmImgZoom(1.25)" title="Zoom in" aria-label="Zoom in"><i class="fas fa-search-plus" aria-hidden="true"></i></button>' +
'<button onclick="_pmImgZoom(0.8)" title="Zoom out" aria-label="Zoom out"><i class="fas fa-search-minus" aria-hidden="true"></i></button>' +
'<button onclick="_pmImgReset()" title="Reset" aria-label="Reset zoom"><i class="fas fa-expand" aria-hidden="true"></i></button>' +
'<span id="pm-zoom-level" style="font-size:0.8rem;color:#6b7280;">100%</span>' +
'</div>' +
'<div class="pm-img-wrap" id="pm-img-wrap"><img id="pm-preview-img" src="' + url + '" alt="' + (alt || 'Preview') + '" draggable="false" style="max-width:100%;height:auto;"></div>';
// Drag-pan
var wrap = document.getElementById('pm-img-wrap');
if (wrap) {
var dragging = false, sX, sY, sL, sT;
wrap.addEventListener('mousedown', function(e){ dragging=true; wrap.classList.add('dragging'); sX=e.pageX-wrap.offsetLeft; sY=e.pageY-wrap.offsetTop; sL=wrap.scrollLeft; sT=wrap.scrollTop; });
wrap.addEventListener('mousemove', function(e){ if(!dragging) return; e.preventDefault(); wrap.scrollLeft=sL-(e.pageX-wrap.offsetLeft-sX); wrap.scrollTop=sT-(e.pageY-wrap.offsetTop-sY); });
wrap.addEventListener('mouseup', function(){ dragging=false; wrap.classList.remove('dragging'); });
wrap.addEventListener('mouseleave', function(){ dragging=false; wrap.classList.remove('dragging'); });
wrap.addEventListener('wheel', function(e){ e.preventDefault(); _pmImgZoom(e.deltaY<0?1.1:0.9); }, {passive:false});
}
}
function _pmImgZoom(factor) {
_pmImgScale = Math.max(0.25, Math.min(5, _pmImgScale * factor));
var img = document.getElementById('pm-preview-img');
if (img) img.style.transform = 'scale(' + _pmImgScale + ')';
var lbl = document.getElementById('pm-zoom-level');
if (lbl) lbl.textContent = Math.round(_pmImgScale * 100) + '%';
}
function _pmImgReset() {
_pmImgScale = 1;
var img = document.getElementById('pm-preview-img');
if (img) img.style.transform = 'scale(1)';
var lbl = document.getElementById('pm-zoom-level');
if (lbl) lbl.textContent = '100%';
}
// Text rendering inside preview modal
function _pmRenderText(body, url) {
body.innerHTML = '<div class="pm-text-content" id="pm-text-content"><div style="text-align:center;padding:2rem;color:#94a3b8;"><i class="fas fa-spinner fa-spin"></i> Loading…</div></div>';
fetch(url)
.then(function(r) { if (!r.ok) throw new Error('HTTP ' + r.status); return r.text(); })
.then(function(text) {
var container = document.getElementById('pm-text-content');
if (!container) return;
container.innerHTML = '';
var lines = text.split('\n');
for (var i = 0; i < lines.length; i++) {
var div = document.createElement('div');
var num = document.createElement('span');
num.className = 'pm-line-number';
num.textContent = (i + 1) + '';
div.appendChild(num);
div.appendChild(document.createTextNode(lines[i]));
container.appendChild(div);
}
})
.catch(function() {
var c = document.getElementById('pm-text-content');
if (c) c.innerHTML = '<div style="color:#f87171;padding:1rem;">Failed to load file</div>';
});
}
// Close preview on overlay click or Escape
document.getElementById('previewOverlay').addEventListener('click', function(e) {
if (e.target === this) closePreviewModal();
});
document.addEventListener('keydown', function(e) {
if (e.key === 'Escape') {
var overlay = document.getElementById('previewOverlay');
if (overlay && overlay.classList.contains('active')) closePreviewModal();
}
});
cancelDelete.addEventListener('click', () => {
deleteModal.style.display = 'none';
});