95 lines
2.5 KiB
Dart
95 lines
2.5 KiB
Dart
import 'dart:typed_data';
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import 'package:flutter/material.dart';
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import 'package:flux/core/utils/functions.dart';
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import 'package:get_it/get_it.dart';
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import 'package:pdfx/pdfx.dart';
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import 'package:internet_file/internet_file.dart';
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import 'package:supabase_flutter/supabase_flutter.dart';
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class PdfViewerWidget extends StatefulWidget {
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final String? storagePath;
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final Uint8List? bytes;
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const PdfViewerWidget({super.key, this.storagePath, this.bytes})
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: assert(
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(storagePath != null && storagePath != '') || bytes != null,
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'Errore: Devi fornire un URL valido o i bytes del file!',
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);
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@override
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State<PdfViewerWidget> createState() => _PdfViewerWidgetState();
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}
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class _PdfViewerWidgetState extends State<PdfViewerWidget> {
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late PdfControllerPinch _pdfController;
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bool _isLoading = true;
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String? _errorMessage;
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@override
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void initState() {
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super.initState();
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_initPdf();
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}
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Future<void> _initPdf() async {
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try {
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Uint8List pdfData;
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if (widget.bytes != null) {
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// SCENARIO 1: Pratica in bozza, file appena scelto (Locale)
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pdfData = widget.bytes!;
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} else if (widget.storagePath != null && widget.storagePath!.isNotEmpty) {
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// SCENARIO 2: Pratica salvata, scarichiamo da Supabase (Remoto)
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final signedUrl = await getSignedUrl(widget.storagePath!);
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pdfData = await InternetFile.get(signedUrl);
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} else {
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throw Exception("Nessun documento trovato");
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}
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_pdfController = PdfControllerPinch(
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document: PdfDocument.openData(pdfData),
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);
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if (mounted) setState(() => _isLoading = false);
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} catch (e) {
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if (mounted) {
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setState(() {
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_isLoading = false;
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_errorMessage = e.toString();
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});
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}
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}
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}
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@override
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void dispose() {
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_pdfController.dispose();
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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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if (_isLoading) {
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return const Scaffold(body: Center(child: CircularProgressIndicator()));
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}
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if (_errorMessage != null) {
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return Scaffold(
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appBar: AppBar(leading: const CloseButton()),
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body: Center(child: Text("Errore: $_errorMessage")),
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);
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}
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return Scaffold(
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appBar: AppBar(
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title: const Text("Anteprima PDF"),
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leading: IconButton(
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icon: const Icon(Icons.close),
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onPressed: () => Navigator.pop(context),
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),
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),
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body: PdfViewPinch(controller: _pdfController),
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);
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}
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}
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