384 lines
9.5 KiB
Svelte
384 lines
9.5 KiB
Svelte
<script lang="ts">
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import { listDirectoryChildren, readFileContent, type DirEntry, type FileContent } from '../../adapters/files-bridge';
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import { getHighlighter, highlightCode, escapeHtml } from '../../utils/highlight';
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import { convertFileSrc } from '@tauri-apps/api/core';
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interface Props {
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cwd: string;
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}
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let { cwd }: Props = $props();
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// Tree state: expanded dirs and their children
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interface TreeNode extends DirEntry {
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children?: TreeNode[];
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loading?: boolean;
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depth: number;
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}
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let roots = $state<TreeNode[]>([]);
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let expandedPaths = $state<Set<string>>(new Set());
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let selectedPath = $state<string | null>(null);
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let fileContent = $state<FileContent | null>(null);
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let fileLoading = $state(false);
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let highlighterReady = $state(false);
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// Load root directory
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$effect(() => {
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const dir = cwd;
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loadDirectory(dir).then(entries => {
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roots = entries.map(e => ({ ...e, depth: 0 }));
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});
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getHighlighter().then(() => { highlighterReady = true; });
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});
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async function loadDirectory(path: string): Promise<DirEntry[]> {
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try {
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return await listDirectoryChildren(path);
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} catch (e) {
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console.warn('Failed to list directory:', e);
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return [];
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}
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}
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async function toggleDir(node: TreeNode) {
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const path = node.path;
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if (expandedPaths.has(path)) {
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const next = new Set(expandedPaths);
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next.delete(path);
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expandedPaths = next;
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} else {
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// Load children if not yet loaded
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if (!node.children) {
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node.loading = true;
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const entries = await loadDirectory(path);
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node.children = entries.map(e => ({ ...e, depth: node.depth + 1 }));
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node.loading = false;
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}
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expandedPaths = new Set([...expandedPaths, path]);
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}
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}
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async function selectFile(node: TreeNode) {
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if (node.is_dir) {
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toggleDir(node);
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return;
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}
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selectedPath = node.path;
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fileLoading = true;
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try {
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fileContent = await readFileContent(node.path);
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} catch (e) {
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fileContent = { type: 'Binary', message: `Error: ${e}` };
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} finally {
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fileLoading = false;
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}
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}
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function flattenTree(nodes: TreeNode[]): TreeNode[] {
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const result: TreeNode[] = [];
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for (const node of nodes) {
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result.push(node);
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if (node.is_dir && expandedPaths.has(node.path) && node.children) {
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result.push(...flattenTree(node.children));
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}
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}
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return result;
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}
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let flatNodes = $derived(flattenTree(roots));
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function fileIcon(node: TreeNode): string {
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if (node.is_dir) return expandedPaths.has(node.path) ? '📂' : '📁';
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const ext = node.ext;
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if (['ts', 'tsx'].includes(ext)) return '🟦';
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if (['js', 'jsx', 'mjs'].includes(ext)) return '🟨';
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if (ext === 'rs') return '🦀';
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if (ext === 'py') return '🐍';
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if (ext === 'svelte') return '🟧';
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if (['md', 'markdown'].includes(ext)) return '📝';
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if (['json', 'toml', 'yaml', 'yml'].includes(ext)) return '⚙️';
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if (['png', 'jpg', 'jpeg', 'gif', 'webp', 'svg', 'ico'].includes(ext)) return '🖼️';
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if (ext === 'pdf') return '📄';
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if (['css', 'scss', 'less'].includes(ext)) return '🎨';
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if (['html', 'htm'].includes(ext)) return '🌐';
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return '📄';
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}
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function formatSize(bytes: number): string {
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if (bytes < 1024) return `${bytes} B`;
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if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`;
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return `${(bytes / (1024 * 1024)).toFixed(1)} MB`;
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}
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function renderHighlighted(content: string, lang: string): string {
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if (!highlighterReady || lang === 'text' || lang === 'csv') {
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return `<pre><code>${escapeHtml(content)}</code></pre>`;
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}
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const highlighted = highlightCode(content, lang);
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if (highlighted !== escapeHtml(content)) return highlighted;
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return `<pre><code>${escapeHtml(content)}</code></pre>`;
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}
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function isImageExt(path: string): boolean {
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const ext = path.split('.').pop()?.toLowerCase() ?? '';
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return ['png', 'jpg', 'jpeg', 'gif', 'webp', 'svg', 'ico', 'bmp'].includes(ext);
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}
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</script>
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<div class="files-tab">
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<aside class="tree-sidebar">
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<div class="tree-header">
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<span class="tree-title">Explorer</span>
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</div>
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<div class="tree-list">
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{#each flatNodes as node (node.path)}
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<button
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class="tree-row"
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class:selected={selectedPath === node.path}
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class:dir={node.is_dir}
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style="padding-left: {0.5 + node.depth * 1}rem"
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onclick={() => selectFile(node)}
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>
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<span class="tree-icon">{fileIcon(node)}</span>
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<span class="tree-name">{node.name}</span>
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{#if !node.is_dir}
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<span class="tree-size">{formatSize(node.size)}</span>
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{/if}
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{#if node.loading}
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<span class="tree-loading">…</span>
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{/if}
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</button>
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{/each}
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{#if flatNodes.length === 0}
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<div class="tree-empty">No files</div>
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{/if}
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</div>
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</aside>
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<main class="file-viewer">
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{#if fileLoading}
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<div class="viewer-state">Loading…</div>
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{:else if !selectedPath}
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<div class="viewer-state">Select a file to view</div>
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{:else if fileContent?.type === 'TooLarge'}
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<div class="viewer-state">
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<span class="viewer-warning">File too large</span>
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<span class="viewer-detail">{formatSize(fileContent.size)}</span>
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</div>
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{:else if fileContent?.type === 'Binary'}
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{#if isImageExt(selectedPath)}
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<div class="viewer-image">
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<img src={convertFileSrc(selectedPath)} alt={selectedPath.split('/').pop()} />
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</div>
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{:else}
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<div class="viewer-state">{fileContent.message}</div>
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{/if}
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{:else if fileContent?.type === 'Text'}
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<div class="viewer-code">
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{#if fileContent.lang === 'csv'}
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<pre class="csv-content"><code>{fileContent.content}</code></pre>
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{:else}
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{@html renderHighlighted(fileContent.content, fileContent.lang)}
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{/if}
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</div>
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{/if}
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{#if selectedPath}
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<div class="viewer-path">{selectedPath}</div>
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{/if}
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</main>
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</div>
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<style>
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.files-tab {
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display: flex;
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height: 100%;
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overflow: hidden;
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flex: 1;
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}
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.tree-sidebar {
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width: 14rem;
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flex-shrink: 0;
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background: var(--ctp-mantle);
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border-right: 1px solid var(--ctp-surface0);
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display: flex;
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flex-direction: column;
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overflow: hidden;
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}
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.tree-header {
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padding: 0.375rem 0.625rem;
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border-bottom: 1px solid var(--ctp-surface0);
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flex-shrink: 0;
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}
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.tree-title {
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font-size: 0.675rem;
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font-weight: 600;
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text-transform: uppercase;
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letter-spacing: 0.05em;
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color: var(--ctp-overlay1);
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}
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.tree-list {
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flex: 1;
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overflow-y: auto;
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overflow-x: hidden;
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}
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.tree-row {
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display: flex;
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align-items: center;
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gap: 0.25rem;
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width: 100%;
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height: 1.5rem;
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border: none;
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background: transparent;
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color: var(--ctp-subtext0);
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font-size: 0.7rem;
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text-align: left;
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cursor: pointer;
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white-space: nowrap;
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overflow: hidden;
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text-overflow: ellipsis;
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transition: background 0.1s;
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padding-right: 0.375rem;
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}
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.tree-row:hover {
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background: var(--ctp-surface0);
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color: var(--ctp-text);
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}
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.tree-row.selected {
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background: color-mix(in srgb, var(--accent, var(--ctp-blue)) 15%, transparent);
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color: var(--ctp-text);
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}
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.tree-row.dir {
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font-weight: 500;
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}
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.tree-icon {
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font-size: 0.65rem;
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flex-shrink: 0;
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width: 1rem;
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text-align: center;
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}
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.tree-name {
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overflow: hidden;
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text-overflow: ellipsis;
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flex: 1;
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min-width: 0;
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}
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.tree-size {
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font-size: 0.575rem;
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color: var(--ctp-overlay0);
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flex-shrink: 0;
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margin-left: auto;
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}
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.tree-loading {
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color: var(--ctp-overlay0);
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font-size: 0.6rem;
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}
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.tree-empty {
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color: var(--ctp-overlay0);
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font-size: 0.7rem;
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padding: 1rem;
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text-align: center;
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}
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.file-viewer {
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flex: 1;
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min-width: 0;
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display: flex;
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flex-direction: column;
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overflow: hidden;
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background: var(--ctp-base);
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}
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.viewer-state {
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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height: 100%;
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gap: 0.5rem;
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color: var(--ctp-overlay0);
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font-size: 0.8rem;
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}
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.viewer-warning {
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color: var(--ctp-yellow);
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font-weight: 600;
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}
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.viewer-detail {
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font-size: 0.7rem;
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}
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.viewer-code {
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flex: 1;
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overflow: auto;
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padding: 0.75rem 1rem;
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}
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.viewer-code :global(pre) {
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margin: 0;
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font-family: var(--term-font-family, 'JetBrains Mono', monospace);
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font-size: 0.775rem;
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line-height: 1.55;
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color: var(--ctp-text);
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}
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.viewer-code :global(code) {
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font-family: inherit;
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background: none;
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padding: 0;
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}
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.viewer-code :global(.shiki) {
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background: transparent !important;
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padding: 0;
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margin: 0;
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border: none;
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box-shadow: none;
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}
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.csv-content {
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font-family: var(--term-font-family, monospace);
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font-size: 0.75rem;
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white-space: pre;
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tab-size: 4;
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}
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.viewer-image {
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flex: 1;
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display: flex;
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align-items: center;
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justify-content: center;
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padding: 1rem;
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overflow: auto;
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}
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.viewer-image img {
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max-width: 100%;
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max-height: 100%;
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object-fit: contain;
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border-radius: 0.25rem;
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}
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.viewer-path {
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border-top: 1px solid var(--ctp-surface0);
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padding: 0.25rem 0.75rem;
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font-size: 0.65rem;
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font-family: var(--term-font-family, monospace);
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color: var(--ctp-overlay0);
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flex-shrink: 0;
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}
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</style>
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