refactor: rename internal Fai* design system + fai_ helpers to chain
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The Studio design system, widgets and helpers carried a Fai* / fai_ prefix (FaiSpace, FaiColors, FaiTheme, FaiLog, 17 fai_*.dart files, the faiBinary* l10n keys). Studio is the Ch∆In product, so rename them to Chain* / chain_ — carefully preserving English fail/failure/failed. Also fix stale references: the 'fai' binary in l10n strings -> 'chain', FAI_* env vars (FAI_BIN/DATA_DIR/MODULES_DIR/TODAY/BOOTSTRAP_TOKEN) -> CHAIN_*, fai_platform -> fai_chain, fai_hub -> chain_hub. Vendor security-hook tooling (FAI_BANNED_TERMS_FILE) + the .fai bundle ext left. flutter analyze + test: clean (20 passed). Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
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52 changed files with 1225 additions and 1225 deletions
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// FaiFlowOutput — type-aware renderer for one entry in
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// `runSavedFlow`'s output map. Reads `FlowOutput` and dispatches
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// to the right widget:
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//
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// - text: SelectableText for plain text; Markdown widget
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// when the (hinted) MIME is text/markdown.
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// - json: indented JSON in a code-block container.
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// - bytes: inline image thumbnail when image/*, otherwise a
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// "{mime}, {size}" summary. Always offers Save-as.
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// - file: "Open" button → SystemActions.openInOs(uri).
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//
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// Stateless on purpose: the dialog wraps it; we never own a
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// future or a controller here.
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import 'dart:io';
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import 'dart:typed_data';
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import 'package:file_picker/file_picker.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_markdown_plus/flutter_markdown_plus.dart';
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import '../data/error_presentation.dart';
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import '../data/flow_output.dart';
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import '../data/format.dart';
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import '../data/system_actions.dart';
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import '../l10n/app_localizations.dart';
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import '../theme/theme.dart';
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import '../theme/tokens.dart';
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class FaiFlowOutput extends StatelessWidget {
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final FlowOutput output;
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const FaiFlowOutput({super.key, required this.output});
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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switch (output) {
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case FlowOutputText(:final text):
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return _TextView(text: text);
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case FlowOutputJson(:final pretty):
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return _CodeBlock(text: pretty, theme: theme);
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case FlowOutputBytes(:final bytes, :final mimeType):
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return _BytesView(bytes: bytes, mimeType: mimeType);
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case FlowOutputFile(:final uri, :final mimeType):
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return _FileView(uri: uri, mimeType: mimeType);
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case FlowOutputUnknown():
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return _CodeBlock(
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text: AppLocalizations.of(context)!.flowsOutputUnknown,
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theme: theme,
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);
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}
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}
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}
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/// Plain-text renderer. Auto-detects markdown via a cheap
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/// heuristic (leading `#` heading, fenced code block, or
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/// numbered/bulleted list) so flows that emit text/markdown
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/// without setting an explicit MIME still render formatted.
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class _TextView extends StatelessWidget {
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final String text;
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const _TextView({required this.text});
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static final RegExp _markdownHeuristic = RegExp(
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r'(^|\n)(#{1,6}\s|```|\*\s|-\s|\d+\.\s)',
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);
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bool get _looksLikeMarkdown =>
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text.length < 64 * 1024 && _markdownHeuristic.hasMatch(text);
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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if (_looksLikeMarkdown) {
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return Container(
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width: double.infinity,
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padding: const EdgeInsets.all(FaiSpace.md),
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decoration: BoxDecoration(
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color: theme.colorScheme.surfaceContainerHigh,
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borderRadius: BorderRadius.circular(FaiRadius.sm),
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border: Border.all(color: theme.colorScheme.outlineVariant),
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),
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child: MarkdownBody(
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data: text,
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selectable: true,
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onTapLink: (_, href, _) async {
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if (href != null && href.isNotEmpty) {
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await SystemActions.openInOs(href);
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}
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},
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styleSheet: FaiTheme.markdownStyle(theme),
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),
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);
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}
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return Container(
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width: double.infinity,
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padding: const EdgeInsets.all(FaiSpace.md),
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decoration: BoxDecoration(
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color: theme.colorScheme.surfaceContainerHigh,
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borderRadius: BorderRadius.circular(FaiRadius.sm),
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border: Border.all(color: theme.colorScheme.outlineVariant),
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),
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child: SelectableText(
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text,
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style: theme.textTheme.bodyMedium?.copyWith(height: 1.5),
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),
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);
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}
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}
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class _CodeBlock extends StatelessWidget {
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final String text;
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final ThemeData theme;
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const _CodeBlock({required this.text, required this.theme});
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@override
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Widget build(BuildContext context) {
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return Container(
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width: double.infinity,
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padding: const EdgeInsets.all(FaiSpace.md),
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decoration: BoxDecoration(
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color: theme.colorScheme.surfaceContainerHigh,
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borderRadius: BorderRadius.circular(FaiRadius.sm),
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border: Border.all(color: theme.colorScheme.outlineVariant),
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),
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child: SelectableText(
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text,
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style: FaiTheme.mono(size: 12, color: theme.colorScheme.onSurface),
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),
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);
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}
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}
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class _BytesView extends StatelessWidget {
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final Uint8List bytes;
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final String mimeType;
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const _BytesView({required this.bytes, required this.mimeType});
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bool get _isImage => mimeType.startsWith('image/');
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/// Reasonable default filename for the Save dialog. Strips the
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/// MIME up to the slash and uses the suffix when known
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/// (image/png → output.png), otherwise a generic `.bin`.
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String _defaultFilename() {
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final slash = mimeType.indexOf('/');
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if (slash < 0 || slash == mimeType.length - 1) return 'output.bin';
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final sub = mimeType.substring(slash + 1);
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// Strip common parameter suffixes (`png; charset=...`).
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final semi = sub.indexOf(';');
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final ext = semi < 0 ? sub : sub.substring(0, semi);
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// `vnd.openxmlformats-…wordprocessingml.document` → docx.
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if (ext.contains('wordprocessingml')) return 'output.docx';
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if (ext.contains('spreadsheetml')) return 'output.xlsx';
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if (ext.contains('presentationml')) return 'output.pptx';
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return 'output.$ext';
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}
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Future<void> _save(BuildContext context) async {
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final l = AppLocalizations.of(context)!;
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final path = await FilePicker.saveFile(
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dialogTitle: l.flowsOutputSaveAsTitle,
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fileName: _defaultFilename(),
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);
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if (path == null) return;
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try {
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await File(path).writeAsBytes(bytes, flush: true);
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if (!context.mounted) return;
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ScaffoldMessenger.of(
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context,
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).showSnackBar(SnackBar(content: Text(l.flowsOutputSavedAt(path))));
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} catch (e) {
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if (!context.mounted) return;
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showFaiErrorSnack(context, 'flows.output.save', e);
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}
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}
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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final l = AppLocalizations.of(context)!;
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return Container(
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width: double.infinity,
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padding: const EdgeInsets.all(FaiSpace.md),
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decoration: BoxDecoration(
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color: theme.colorScheme.surfaceContainerHigh,
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borderRadius: BorderRadius.circular(FaiRadius.sm),
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border: Border.all(color: theme.colorScheme.outlineVariant),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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if (_isImage) ...[
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ConstrainedBox(
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constraints: const BoxConstraints(maxHeight: 240),
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child: ClipRRect(
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borderRadius: BorderRadius.circular(FaiRadius.sm),
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child: Image.memory(bytes, fit: BoxFit.contain),
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),
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),
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const SizedBox(height: FaiSpace.sm),
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],
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Text(
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'${mimeType.isEmpty ? l.flowsOutputBytesUnknownMime : mimeType}'
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' · ${humanBytes(bytes.length)}',
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style: theme.textTheme.bodySmall?.copyWith(
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color: theme.colorScheme.onSurfaceVariant,
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),
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),
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const SizedBox(height: FaiSpace.sm),
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OutlinedButton.icon(
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icon: const Icon(Icons.save_alt, size: 16),
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label: Text(l.flowsOutputSaveAs),
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onPressed: () => _save(context),
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),
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],
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),
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);
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}
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}
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class _FileView extends StatelessWidget {
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final String uri;
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final String mimeType;
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const _FileView({required this.uri, required this.mimeType});
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Future<void> _open(BuildContext context) async {
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// Most file-URIs come from modules that wrote a temp/output
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// path on the host. SystemActions normalises `file://` for
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// open-in-OS on all three platforms.
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final target = uri.startsWith('file://') ? uri.substring(7) : uri;
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final r = await SystemActions.openInOs(target);
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if (!context.mounted || r.ok) return;
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showFaiErrorSnack(
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context,
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'flows.output.open',
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r.stderr.isEmpty ? 'open failed' : r.stderr,
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);
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}
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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final l = AppLocalizations.of(context)!;
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return Container(
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width: double.infinity,
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padding: const EdgeInsets.all(FaiSpace.md),
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decoration: BoxDecoration(
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color: theme.colorScheme.surfaceContainerHigh,
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borderRadius: BorderRadius.circular(FaiRadius.sm),
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border: Border.all(color: theme.colorScheme.outlineVariant),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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SelectableText(
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uri,
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style: FaiTheme.mono(size: 11, color: theme.colorScheme.primary),
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),
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if (mimeType.isNotEmpty) ...[
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const SizedBox(height: 4),
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Text(
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mimeType,
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style: theme.textTheme.bodySmall?.copyWith(
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color: theme.colorScheme.onSurfaceVariant,
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),
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),
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],
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const SizedBox(height: FaiSpace.sm),
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OutlinedButton.icon(
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icon: const Icon(Icons.open_in_new, size: 16),
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label: Text(l.flowsOutputOpen),
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onPressed: () => _open(context),
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),
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],
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),
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);
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}
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}
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