feat(files-tab): add PDF viewer and CSV table view

pdfjs-dist for canvas-based multi-page PDF rendering with zoom controls.
RFC 4180 CSV parser with delimiter auto-detection and sortable columns.
FilesTab routes Binary+pdf to PdfViewer, Text+csv to CsvTable.
This commit is contained in:
Hibryda 2026-03-11 01:23:49 +01:00
parent 929f54e195
commit 378c59bb97
5 changed files with 804 additions and 11 deletions

271
v2/package-lock.json generated
View file

@ -31,6 +31,7 @@
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"codemirror": "^6.0.2",
"marked": "^17.0.4",
"pdfjs-dist": "^5.5.207",
"shiki": "^4.0.1"
},
"devDependencies": {
@ -1851,6 +1852,256 @@
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@ -6759,6 +7010,13 @@
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@ -7101,6 +7359,19 @@
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}
},
"node_modules/pend": {
"version": "1.2.0",
"resolved": "https://registry.npmjs.org/pend/-/pend-1.2.0.tgz",

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@ -53,6 +53,7 @@
"@xterm/xterm": "^6.0.0",
"codemirror": "^6.0.2",
"marked": "^17.0.4",
"pdfjs-dist": "^5.5.207",
"shiki": "^4.0.1"
}
}

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@ -0,0 +1,253 @@
<script lang="ts">
interface Props {
content: string;
filename: string;
}
let { content, filename }: Props = $props();
/** Parse CSV with basic RFC 4180 quoting support */
function parseCsv(text: string): string[][] {
const rows: string[][] = [];
let i = 0;
const len = text.length;
while (i < len) {
const row: string[] = [];
while (i < len) {
let field = '';
if (text[i] === '"') {
// Quoted field
i++; // skip opening quote
while (i < len) {
if (text[i] === '"') {
if (i + 1 < len && text[i + 1] === '"') {
field += '"';
i += 2;
} else {
i++; // skip closing quote
break;
}
} else {
field += text[i];
i++;
}
}
} else {
// Unquoted field
while (i < len && text[i] !== ',' && text[i] !== '\n' && text[i] !== '\r') {
field += text[i];
i++;
}
}
row.push(field);
if (i < len && text[i] === ',') {
i++; // skip comma, continue row
} else {
// End of row
if (i < len && text[i] === '\r') i++;
if (i < len && text[i] === '\n') i++;
break;
}
}
// Skip empty trailing rows
if (row.length > 0 && !(row.length === 1 && row[0] === '')) {
rows.push(row);
}
}
return rows;
}
/** Detect delimiter: comma vs semicolon vs tab */
function detectDelimiter(text: string): string {
const firstLine = text.split('\n')[0] ?? '';
const commas = (firstLine.match(/,/g) ?? []).length;
const semicolons = (firstLine.match(/;/g) ?? []).length;
const tabs = (firstLine.match(/\t/g) ?? []).length;
if (tabs > commas && tabs > semicolons) return '\t';
if (semicolons > commas) return ';';
return ',';
}
let parsed = $derived.by(() => {
// Normalize delimiter to comma before parsing
const delim = detectDelimiter(content);
const normalized = delim === ',' ? content : content.replaceAll(delim, ',');
return parseCsv(normalized);
});
let headers = $derived(parsed[0] ?? []);
let dataRows = $derived(parsed.slice(1));
let totalRows = $derived(dataRows.length);
// Column count from widest row
let colCount = $derived(Math.max(...parsed.map(r => r.length), 0));
// Sort state
let sortCol = $state<number | null>(null);
let sortAsc = $state(true);
let sortedRows = $derived.by(() => {
if (sortCol === null) return dataRows;
const col = sortCol;
const asc = sortAsc;
return [...dataRows].sort((a, b) => {
const va = a[col] ?? '';
const vb = b[col] ?? '';
// Try numeric comparison
const na = Number(va);
const nb = Number(vb);
if (!isNaN(na) && !isNaN(nb)) {
return asc ? na - nb : nb - na;
}
return asc ? va.localeCompare(vb) : vb.localeCompare(va);
});
});
function toggleSort(col: number) {
if (sortCol === col) {
sortAsc = !sortAsc;
} else {
sortCol = col;
sortAsc = true;
}
}
function sortIndicator(col: number): string {
if (sortCol !== col) return '';
return sortAsc ? ' ▲' : ' ▼';
}
</script>
<div class="csv-table-wrapper">
<div class="csv-toolbar">
<span class="csv-info">
{totalRows} row{totalRows !== 1 ? 's' : ''} × {colCount} col{colCount !== 1 ? 's' : ''}
</span>
<span class="csv-filename">{filename}</span>
</div>
<div class="csv-scroll">
<table class="csv-table">
<thead>
<tr>
<th class="row-num">#</th>
{#each headers as header, i}
<th onclick={() => toggleSort(i)} class="sortable">
{header}{sortIndicator(i)}
</th>
{/each}
</tr>
</thead>
<tbody>
{#each sortedRows as row, rowIdx (rowIdx)}
<tr>
<td class="row-num">{rowIdx + 1}</td>
{#each { length: colCount } as _, colIdx}
<td>{row[colIdx] ?? ''}</td>
{/each}
</tr>
{/each}
</tbody>
</table>
</div>
</div>
<style>
.csv-table-wrapper {
display: flex;
flex-direction: column;
height: 100%;
overflow: hidden;
background: var(--ctp-base);
}
.csv-toolbar {
display: flex;
align-items: center;
justify-content: space-between;
padding: 0.25rem 0.625rem;
background: var(--ctp-mantle);
border-bottom: 1px solid var(--ctp-surface0);
flex-shrink: 0;
}
.csv-info {
font-size: 0.7rem;
color: var(--ctp-overlay1);
font-variant-numeric: tabular-nums;
}
.csv-filename {
font-size: 0.65rem;
color: var(--ctp-overlay0);
font-family: var(--term-font-family, monospace);
}
.csv-scroll {
flex: 1;
overflow: auto;
}
.csv-table {
width: 100%;
border-collapse: collapse;
font-size: 0.725rem;
font-family: var(--term-font-family, monospace);
white-space: nowrap;
}
.csv-table thead {
position: sticky;
top: 0;
z-index: 1;
}
.csv-table th {
background: var(--ctp-mantle);
color: var(--ctp-subtext1);
font-weight: 600;
text-align: left;
padding: 0.3125rem 0.5rem;
border-bottom: 1px solid var(--ctp-surface1);
user-select: none;
}
.csv-table th.sortable {
cursor: pointer;
transition: background 0.12s;
}
.csv-table th.sortable:hover {
background: var(--ctp-surface0);
color: var(--ctp-text);
}
.csv-table td {
padding: 0.25rem 0.5rem;
border-bottom: 1px solid var(--ctp-surface0);
color: var(--ctp-text);
max-width: 20rem;
overflow: hidden;
text-overflow: ellipsis;
}
.csv-table tbody tr:hover td {
background: color-mix(in srgb, var(--ctp-surface0) 50%, transparent);
}
.row-num {
color: var(--ctp-overlay0);
font-size: 0.625rem;
text-align: right;
width: 2.5rem;
min-width: 2.5rem;
padding-right: 0.625rem;
border-right: 1px solid var(--ctp-surface0);
}
thead .row-num {
border-bottom: 1px solid var(--ctp-surface1);
}
</style>

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@ -3,6 +3,8 @@
import { getSetting } from '../../adapters/settings-bridge';
import { convertFileSrc } from '@tauri-apps/api/core';
import CodeEditor from './CodeEditor.svelte';
import PdfViewer from './PdfViewer.svelte';
import CsvTable from './CsvTable.svelte';
interface Props {
cwd: string;
@ -189,7 +191,8 @@
if (['md', 'markdown'].includes(ext)) return '📝';
if (['json', 'toml', 'yaml', 'yml'].includes(ext)) return '⚙️';
if (['png', 'jpg', 'jpeg', 'gif', 'webp', 'svg', 'ico'].includes(ext)) return '🖼️';
if (ext === 'pdf') return '📄';
if (ext === 'pdf') return '📕';
if (ext === 'csv') return '📊';
if (['css', 'scss', 'less'].includes(ext)) return '🎨';
if (['html', 'htm'].includes(ext)) return '🌐';
return '📄';
@ -206,6 +209,14 @@
return ['png', 'jpg', 'jpeg', 'gif', 'webp', 'svg', 'ico', 'bmp'].includes(ext);
}
function isPdfExt(path: string): boolean {
return path.split('.').pop()?.toLowerCase() === 'pdf';
}
function isCsvLang(lang: string): boolean {
return lang === 'csv';
}
// Editor change handler
function handleEditorChange(tabPath: string, newContent: string) {
const tab = fileTabs.find(t => t.path === tabPath);
@ -344,7 +355,11 @@
<span class="viewer-detail">{formatSize(activeTab.content.size)}</span>
</div>
{:else if activeTab.content?.type === 'Binary'}
{#if isImageExt(activeTab.path)}
{#if isPdfExt(activeTab.path)}
{#key activeTabPath}
<PdfViewer filePath={activeTab.path} />
{/key}
{:else if isImageExt(activeTab.path)}
<div class="viewer-image">
<img src={convertFileSrc(activeTab.path)} alt={activeTab.name} />
</div>
@ -352,15 +367,21 @@
<div class="viewer-state">{activeTab.content.message}</div>
{/if}
{:else if activeTab.content?.type === 'Text'}
{#key activeTabPath}
<CodeEditor
content={activeTab.editContent}
lang={activeTab.content.lang}
onchange={(c) => handleEditorChange(activeTab!.path, c)}
onsave={saveActiveTab}
onblur={() => handleEditorBlur(activeTab!.path)}
/>
{/key}
{#if isCsvLang(activeTab.content.lang)}
{#key activeTabPath}
<CsvTable content={activeTab.editContent} filename={activeTab.name} />
{/key}
{:else}
{#key activeTabPath}
<CodeEditor
content={activeTab.editContent}
lang={activeTab.content.lang}
onchange={(c) => handleEditorChange(activeTab!.path, c)}
onsave={saveActiveTab}
onblur={() => handleEditorBlur(activeTab!.path)}
/>
{/key}
{/if}
{/if}
{#if activeTab}

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@ -0,0 +1,247 @@
<script lang="ts">
import { onMount, onDestroy } from 'svelte';
import { convertFileSrc } from '@tauri-apps/api/core';
import * as pdfjsLib from 'pdfjs-dist';
// Configure worker — use the bundled worker from pdfjs-dist
pdfjsLib.GlobalWorkerOptions.workerSrc = new URL(
'pdfjs-dist/pdf.worker.min.mjs',
import.meta.url,
).href;
interface Props {
filePath: string;
}
let { filePath }: Props = $props();
let container: HTMLDivElement | undefined = $state();
let pageCount = $state(0);
let currentScale = $state(1.0);
let loading = $state(true);
let error = $state<string | null>(null);
let pdfDoc: pdfjsLib.PDFDocumentProxy | null = null;
let renderTask: { cancel: () => void } | null = null;
const SCALE_STEP = 0.25;
const MIN_SCALE = 0.5;
const MAX_SCALE = 3.0;
async function loadPdf(path: string) {
loading = true;
error = null;
// Clean up previous document
if (pdfDoc) {
pdfDoc.destroy();
pdfDoc = null;
}
if (container) {
container.querySelectorAll('.pdf-page-canvas').forEach(c => c.remove());
}
try {
const assetUrl = convertFileSrc(path);
const loadingTask = pdfjsLib.getDocument(assetUrl);
pdfDoc = await loadingTask.promise;
pageCount = pdfDoc.numPages;
await renderAllPages();
} catch (e) {
error = `Failed to load PDF: ${e}`;
console.warn('PDF load error:', e);
} finally {
loading = false;
}
}
async function renderAllPages() {
if (!pdfDoc || !container) return;
// Clear existing canvases
container.querySelectorAll('.pdf-page-canvas').forEach(c => c.remove());
for (let i = 1; i <= pdfDoc.numPages; i++) {
await renderPage(i);
}
}
async function renderPage(pageNum: number) {
if (!pdfDoc || !container) return;
const page = await pdfDoc.getPage(pageNum);
const viewport = page.getViewport({ scale: currentScale * window.devicePixelRatio });
const displayViewport = page.getViewport({ scale: currentScale });
const canvas = document.createElement('canvas');
canvas.className = 'pdf-page-canvas';
canvas.width = viewport.width;
canvas.height = viewport.height;
canvas.style.width = `${displayViewport.width}px`;
canvas.style.height = `${displayViewport.height}px`;
container.appendChild(canvas);
const ctx = canvas.getContext('2d');
if (!ctx) return;
renderTask = page.render({ canvasContext: ctx, viewport });
try {
await renderTask.promise;
} catch (e: unknown) {
// Ignore cancelled renders
if (e && typeof e === 'object' && 'name' in e && (e as { name: string }).name !== 'RenderingCancelledException') {
console.warn(`Failed to render page ${pageNum}:`, e);
}
}
}
function zoomIn() {
if (currentScale >= MAX_SCALE) return;
currentScale = Math.min(MAX_SCALE, currentScale + SCALE_STEP);
renderAllPages();
}
function zoomOut() {
if (currentScale <= MIN_SCALE) return;
currentScale = Math.max(MIN_SCALE, currentScale - SCALE_STEP);
renderAllPages();
}
function resetZoom() {
currentScale = 1.0;
renderAllPages();
}
onMount(() => {
loadPdf(filePath);
});
// React to filePath changes
let lastPath = $state(filePath);
$effect(() => {
const p = filePath;
if (p !== lastPath) {
lastPath = p;
loadPdf(p);
}
});
onDestroy(() => {
if (renderTask) {
try { renderTask.cancel(); } catch { /* ignore */ }
}
if (pdfDoc) {
pdfDoc.destroy();
pdfDoc = null;
}
});
</script>
<div class="pdf-viewer">
<div class="pdf-toolbar">
<span class="pdf-info">
{#if loading}
Loading…
{:else if error}
Error
{:else}
{pageCount} page{pageCount !== 1 ? 's' : ''}
{/if}
</span>
<div class="pdf-zoom-controls">
<button class="zoom-btn" onclick={zoomOut} disabled={currentScale <= MIN_SCALE} title="Zoom out"></button>
<button class="zoom-label" onclick={resetZoom} title="Reset zoom">{Math.round(currentScale * 100)}%</button>
<button class="zoom-btn" onclick={zoomIn} disabled={currentScale >= MAX_SCALE} title="Zoom in">+</button>
</div>
</div>
{#if error}
<div class="pdf-error">{error}</div>
{:else}
<div class="pdf-pages" bind:this={container}></div>
{/if}
</div>
<style>
.pdf-viewer {
display: flex;
flex-direction: column;
height: 100%;
overflow: hidden;
background: var(--ctp-crust);
}
.pdf-toolbar {
display: flex;
align-items: center;
justify-content: space-between;
padding: 0.25rem 0.625rem;
background: var(--ctp-mantle);
border-bottom: 1px solid var(--ctp-surface0);
flex-shrink: 0;
}
.pdf-info {
font-size: 0.7rem;
color: var(--ctp-overlay1);
}
.pdf-zoom-controls {
display: flex;
align-items: center;
gap: 0.125rem;
}
.zoom-btn, .zoom-label {
background: transparent;
border: 1px solid var(--ctp-surface1);
color: var(--ctp-subtext0);
font-size: 0.7rem;
padding: 0.125rem 0.375rem;
border-radius: 0.1875rem;
cursor: pointer;
transition: background 0.12s, color 0.12s;
}
.zoom-btn:hover:not(:disabled), .zoom-label:hover {
background: var(--ctp-surface0);
color: var(--ctp-text);
}
.zoom-btn:disabled {
opacity: 0.4;
cursor: default;
}
.zoom-label {
min-width: 3rem;
text-align: center;
font-variant-numeric: tabular-nums;
}
.pdf-pages {
flex: 1;
overflow: auto;
display: flex;
flex-direction: column;
align-items: center;
gap: 0.5rem;
padding: 0.75rem;
}
.pdf-pages :global(.pdf-page-canvas) {
box-shadow: 0 1px 4px color-mix(in srgb, var(--ctp-crust) 60%, transparent);
border-radius: 2px;
}
.pdf-error {
display: flex;
align-items: center;
justify-content: center;
height: 100%;
color: var(--ctp-red);
font-size: 0.8rem;
padding: 1rem;
}
</style>