refactor: Gott-Datei document_viewer.dart in 5 Dateien aufgeteilt
Sechster Durchgang derselben part/part-of-Technik wie bei den 5 vorigen Umbauten - reine Verschiebung, keine Logikänderung. document_viewer.dart schrumpft von 1773 auf 20 Zeilen (nur noch Bibliothekskopf), 34 Top-Level-Bloecke (31 Klassen/Enums + 3 lose Funktionen) auf 5 thematische Dateien unter lib/features/chat/document/ verteilt. Verifiziert per automatisiertem Blockvergleich gegen das Original und flutter analyze (weiterhin nur 1 bekannter Hinweis). voice_channel.dart und app_shell.dart bewusst nicht angefasst - haengen an der noch unentschiedenen Call-Fassade bzw. dem Bootstrap/Login-Pfad. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
Bernd Steckmeister
@@ -0,0 +1,201 @@
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part of '../document_viewer.dart';
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class _SvgViewer extends StatelessWidget {
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final Uint8List bytes;
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final PyramidTheme pt;
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const _SvgViewer({required this.bytes, required this.pt});
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@override
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Widget build(BuildContext context) {
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return Center(
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child: InteractiveViewer(
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minScale: 0.5,
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maxScale: 10,
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child: Padding(
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padding: const EdgeInsets.all(24),
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child: SvgPicture.memory(bytes),
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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 _MarkdownViewer extends StatelessWidget {
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final Uint8List bytes;
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final PyramidTheme pt;
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const _MarkdownViewer({required this.bytes, required this.pt});
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@override
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Widget build(BuildContext context) {
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final String text;
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try {
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text = utf8.decode(bytes, allowMalformed: true);
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} catch (e) {
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return _ErrorView(message: e.toString(), pt: pt);
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}
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return Markdown(
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data: text,
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selectable: true,
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padding: const EdgeInsets.all(24),
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styleSheet: MarkdownStyleSheet(
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p: TextStyle(color: pt.fg, fontSize: 14, height: 1.65),
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h1: TextStyle(color: pt.fg, fontSize: 22, fontWeight: FontWeight.w700),
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h2: TextStyle(color: pt.fg, fontSize: 18, fontWeight: FontWeight.w600),
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h3: TextStyle(color: pt.fg, fontSize: 16, fontWeight: FontWeight.w600),
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h4: TextStyle(color: pt.fg, fontSize: 14, fontWeight: FontWeight.w600),
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code: TextStyle(color: pt.accent, fontFamily: 'monospace', fontSize: 13, backgroundColor: pt.bg2),
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codeblockDecoration: BoxDecoration(
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color: pt.bg2,
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borderRadius: BorderRadius.circular(pt.rSm),
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border: Border.all(color: pt.border),
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),
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blockquoteDecoration: BoxDecoration(
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border: Border(left: BorderSide(color: pt.accent, width: 3)),
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color: pt.accentSoft,
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),
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blockquotePadding: const EdgeInsets.fromLTRB(12, 8, 12, 8),
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a: TextStyle(color: pt.accent, decoration: TextDecoration.underline, decorationColor: pt.accent),
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strong: TextStyle(color: pt.fg, fontWeight: FontWeight.w600),
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em: TextStyle(color: pt.fg, fontStyle: FontStyle.italic),
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listBullet: TextStyle(color: pt.fgMuted),
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horizontalRuleDecoration: BoxDecoration(border: Border(top: BorderSide(color: pt.border))),
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),
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onTapLink: (text, href, title) {
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if (href != null) launchUrl(Uri.parse(href), mode: LaunchMode.externalApplication);
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},
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);
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}
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}
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class _TextViewer extends StatelessWidget {
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final Uint8List bytes;
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final PyramidTheme pt;
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final bool mono;
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static const _maxBytes = 512 * 1024;
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const _TextViewer({required this.bytes, required this.pt, required this.mono});
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@override
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Widget build(BuildContext context) {
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final bool truncated = bytes.length > _maxBytes;
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final slice = truncated ? bytes.sublist(0, _maxBytes) : bytes;
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final String text;
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try {
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text = utf8.decode(slice, allowMalformed: true);
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} catch (e) {
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return _ErrorView(message: e.toString(), pt: pt);
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}
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return Column(
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children: [
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if (truncated)
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Container(
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width: double.infinity,
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 6),
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color: pt.bg2,
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child: Text('Zeige erste ${_maxBytes ~/ 1024} KB', style: TextStyle(color: pt.fgDim, fontSize: 11)),
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),
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Expanded(
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child: SingleChildScrollView(
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padding: const EdgeInsets.all(20),
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child: SelectableText(
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text,
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style: mono
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? TextStyle(color: pt.fg, fontFamily: 'monospace', fontSize: 13, height: 1.5)
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: TextStyle(color: pt.fg, fontSize: 14, height: 1.65),
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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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}
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class _OfficeTextViewer extends StatefulWidget {
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final Uint8List bytes;
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final String filename;
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final PyramidTheme pt;
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const _OfficeTextViewer({required this.bytes, required this.filename, required this.pt});
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@override
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State<_OfficeTextViewer> createState() => _OfficeTextViewerState();
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}
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class _OfficeTextViewerState extends State<_OfficeTextViewer> {
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String? _text;
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String? _error;
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@override
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void initState() {
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super.initState();
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_extract();
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}
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void _extract() {
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try {
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final archive = ZipDecoder().decodeBytes(widget.bytes);
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final ext = widget.filename.contains('.') ? widget.filename.split('.').last.toLowerCase() : '';
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final xmlFiles = <ArchiveFile>[];
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for (final f in archive.files) {
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if (!f.isFile) continue;
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final n = f.name.toLowerCase();
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if (ext == 'docx' && n == 'word/document.xml') { xmlFiles.add(f); break; }
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if (ext == 'xlsx' && n.startsWith('xl/worksheets/') && n.endsWith('.xml')) xmlFiles.add(f);
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if (ext == 'pptx' && n.startsWith('ppt/slides/slide') && n.endsWith('.xml')) xmlFiles.add(f);
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// ODF formats (Writer/Impress/Calc) all use content.xml
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if ((ext == 'odt' || ext == 'odp' || ext == 'ods') && n == 'content.xml') { xmlFiles.add(f); break; }
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}
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final buf = StringBuffer();
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for (final f in xmlFiles) {
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final xml = utf8.decode(f.content as List<int>, allowMalformed: true);
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// Strip XML tags, collapse whitespace
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final stripped = xml
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.replaceAll(RegExp(r'<[^>]+>'), ' ')
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.replaceAll(RegExp(r'&'), '&')
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.replaceAll(RegExp(r'<'), '<')
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.replaceAll(RegExp(r'>'), '>')
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.replaceAll(RegExp(r' '), ' ')
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.replaceAll(RegExp(r'\s+'), ' ')
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.trim();
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buf.writeln(stripped);
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buf.writeln();
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}
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_text = buf.toString().trim().isEmpty
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? '(Kein lesbarer Text gefunden)'
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: buf.toString().trim();
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} catch (e) {
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_error = e.toString().split('\n').first;
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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 pt = widget.pt;
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if (_error != null) return _ErrorView(message: _error!, pt: pt);
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return Column(
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children: [
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Container(
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width: double.infinity,
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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color: pt.bg2,
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child: Row(
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children: [
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Icon(Icons.info_outline_rounded, size: 14, color: pt.fgDim),
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const SizedBox(width: 8),
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Text('Textvorschau (Formatierung nicht verfügbar)', style: TextStyle(color: pt.fgDim, fontSize: 12)),
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],
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),
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),
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Expanded(
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child: SingleChildScrollView(
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padding: const EdgeInsets.all(20),
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child: SelectableText(
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_text ?? '',
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style: TextStyle(color: pt.fg, fontSize: 14, height: 1.65),
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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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}
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