Feature: Cloud-Daten loeschen in Einstellungen (3s-Halten)
- Einstellungen > Cloud-Daten loeschen: 'Nur Musik' oder 'Komplett vom Server' - 3-Sekunden-Gedrueckthalten-Button zur Bestaetigung (Fortschrittsbalken) - Warnhinweis: Wird SOFORT geloescht, nicht rueckgaengig machbar - Server: delete-music/delete-all Endpunkte mit Dedup-sicherem Registry-Cleanup - Loeschen nur des eigenen Kontos (User aus Token, kein IDOR)
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import 'dart:async';
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import 'package:flutter/material.dart';
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import '../utils/farb_theme.dart';
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/// Bestätigungs-Button: 3 Sekunden gedrückt halten, dann feuert [onBestaetigt].
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/// Loslassen vor Ablauf bricht ab (Fortschrittsbalken geht zurück).
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class HalteZumBestaetigen extends StatefulWidget {
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final String text;
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final Color farbe;
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final VoidCallback onBestaetigt;
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final Duration dauer;
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const HalteZumBestaetigen({
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super.key,
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required this.text,
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required this.onBestaetigt,
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this.farbe = MeloTheme.rot,
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this.dauer = const Duration(seconds: 3),
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});
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@override
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State<HalteZumBestaetigen> createState() => _HalteZumBestaetigenState();
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}
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class _HalteZumBestaetigenState extends State<HalteZumBestaetigen> {
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double _fortschritt = 0;
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Timer? _timer;
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bool _aktiv = false;
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void _starte() {
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if (_aktiv) return;
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_aktiv = true;
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final schritte = widget.dauer.inMilliseconds ~/ 50;
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_timer = Timer.periodic(const Duration(milliseconds: 50), (t) {
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setState(() => _fortschritt += 1 / schritte);
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if (_fortschritt >= 1) {
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t.cancel();
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_timer = null;
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_aktiv = false;
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widget.onBestaetigt();
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}
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});
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}
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void _stoppe() {
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_timer?.cancel();
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_timer = null;
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_aktiv = false;
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if (_fortschritt > 0 && _fortschritt < 1) {
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setState(() => _fortschritt = 0);
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}
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}
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@override
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void dispose() {
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_timer?.cancel();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return GestureDetector(
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behavior: HitTestBehavior.opaque,
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onTapDown: (_) => _starte(),
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onTapUp: (_) => _stoppe(),
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onTapCancel: _stoppe,
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child: Container(
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width: double.infinity,
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decoration: BoxDecoration(
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color: widget.farbe.withValues(alpha: 0.12),
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border: Border.all(color: widget.farbe, width: 1.5),
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borderRadius: BorderRadius.circular(10),
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),
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(Icons.lock_clock, color: widget.farbe, size: 18),
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const SizedBox(width: 8),
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Flexible(
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child: Text(
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widget.text,
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style: TextStyle(
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color: widget.farbe,
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fontSize: 13,
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fontWeight: FontWeight.w600),
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),
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),
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],
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),
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const SizedBox(height: 8),
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ClipRRect(
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borderRadius: BorderRadius.circular(4),
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child: LinearProgressIndicator(
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value: _fortschritt,
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minHeight: 6,
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backgroundColor: MeloTheme.dunkel2,
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color: widget.farbe,
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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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}
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