2025-06-11 17:26:36 +02:00

349 lines
15 KiB
Dart

import 'dart:async';
import 'dart:convert';
import 'dart:io';
//import 'dart:html';
import 'dart:ui' as ui;
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_pdfview/flutter_pdfview.dart';
import 'package:flutter_widget_from_html/flutter_widget_from_html.dart';
import 'package:manager_api_new/api.dart';
import 'package:mymuseum_visitapp/Components/loading_common.dart';
import 'package:mymuseum_visitapp/Helpers/translationHelper.dart';
import 'package:mymuseum_visitapp/Models/visitContext.dart';
import 'package:mymuseum_visitapp/Screens/Sections/PDF/pdf_filter.dart';
import 'package:mymuseum_visitapp/app_context.dart';
import 'package:mymuseum_visitapp/constants.dart';
import 'package:path_provider/path_provider.dart';
import 'package:provider/provider.dart';
class PDFPage extends StatefulWidget {
final PdfDTO section;
const PDFPage({super.key, required this.section});
@override
_PDFPage createState() => _PDFPage();
}
class _PDFPage extends State<PDFPage> {
PdfDTO pdfDTO = PdfDTO();
String remotePDFpath = "";
final Completer<PDFViewController> _controller = Completer<PDFViewController>();
int? pages = 0;
int? currentPage = 0;
bool isReady = false;
String errorMessage = '';
late ValueNotifier<OrderedTranslationAndResourceDTO?> selectedPdf = ValueNotifier<OrderedTranslationAndResourceDTO?>(pdfDTO.pdfs!.first);
ValueNotifier<Map<String, int>> currentState = ValueNotifier<Map<String, int>>({'page': 0, 'total': 1});
@override
void initState() {
/*print(widget.section!.data);
pdfDTO = PdfDTO.fromJson(jsonDecode(widget.section!.data!))!;
print(pdfDTO);*/
pdfDTO = widget.section;
pdfDTO.pdfs!.sort((a, b) => a.order!.compareTo(b.order!));
super.initState();
/*createFileOfPdfUrl(pdfDTO.source_!).then((f) {
setState(() {
remotePDFpath = f.path;
print("paaath");
print(remotePDFpath);
});
});*/
}
Future<File?> createFileOfPdfUrl(VisitAppContext visitAppContext, OrderedTranslationAndResourceDTO pdfFileDTO) async {
Completer<File?> completer = Completer();
if(pdfFileDTO.translationAndResourceDTOs!.firstWhere((pfat) => pfat.language == visitAppContext.language).resourceId == null) {
completer.complete(null);
} else {
var file = await _checkIfLocalResourceExists(visitAppContext, pdfFileDTO.translationAndResourceDTOs!.firstWhere((pfat) => pfat.language == visitAppContext.language).resourceId!);
if(file == null) {
print("Start download file from internet!");
try {
// "https://berlin2017.droidcon.cod.newthinking.net/sites/global.droidcon.cod.newthinking.net/files/media/documents/Flutter%20-%2060FPS%20UI%20of%20the%20future%20%20-%20DroidconDE%2017.pdf";
// final url = "https://pdfkit.org/docs/guide.pdf";
final url = pdfFileDTO.translationAndResourceDTOs!.firstWhere((pfat) => pfat.language == visitAppContext.language).resource!.url!;
final filename = url.substring(url.lastIndexOf("/") + 1);
var request = await HttpClient().getUrl(Uri.parse(url));
var response = await request.close();
var bytes = await consolidateHttpClientResponseBytes(response);
var dir = await getApplicationDocumentsDirectory();
print("Download files");
print("${dir.path}/$filename");
File file = File("${dir.path}/$filename");
await file.writeAsBytes(bytes, flush: true);
completer.complete(file);
} catch (e) {
throw Exception('Error parsing asset file!');
}
} else {
print("FOUND FILE PDF");
completer.complete(file);
}
}
return completer.future;
}
@override
void dispose() {
//_webView = null;
super.dispose();
}
@override
Widget build(BuildContext context) {
final appContext = Provider.of<AppContext>(context);
VisitAppContext visitAppContext = appContext.getContext();
var primaryColor = visitAppContext.configuration != null ? visitAppContext.configuration!.primaryColor != null ? new Color(int.parse(visitAppContext.configuration!.primaryColor!.split('(0x')[1].split(')')[0], radix: 16)) : kSecondColor : kSecondColor;
pdfDTO.pdfs!.sort((a, b) => a.order!.compareTo(b.order!));
Size size = MediaQuery.of(context).size;
var title = TranslationHelper.get(widget.section.title, appContext.getContext());
String cleanedTitle = title.replaceAll('\n', ' ').replaceAll('<br>', ' ');
return Stack(
children: [
Container(
height: size.height * 0.28,
decoration: BoxDecoration(
boxShadow: const [
BoxShadow(
color: kMainGrey,
spreadRadius: 0.5,
blurRadius: 5,
offset: Offset(0, 1), // changes position of shadow
),
],
gradient: const LinearGradient(
begin: Alignment.centerRight,
end: Alignment.centerLeft,
colors: [
/*Color(0xFFDD79C2),
Color(0xFFB65FBE),
Color(0xFF9146BA),
Color(0xFF7633B8),
Color(0xFF6528B6),
Color(0xFF6025B6)*/
kMainColor0, //Color(0xFFf6b3c4)
kMainColor1,
kMainColor2,
],
),
image: widget.section.imageSource != null ? DecorationImage(
fit: BoxFit.cover,
opacity: 0.65,
image: NetworkImage(
widget.section.imageSource!,
),
): null,
),
),
Column(
children: <Widget>[
SizedBox(
height: size.height * 0.11,
width: size.width,
child: Stack(
fit: StackFit.expand,
children: [
Center(
child: Padding(
padding: const EdgeInsets.only(top: 22.0),
child: SizedBox(
width: size.width *0.7,
child: HtmlWidget(
cleanedTitle,
textStyle: const TextStyle(color: Colors.white, fontFamily: 'Roboto', fontSize: 20),
customStylesBuilder: (element)
{
return {'text-align': 'center', 'font-family': "Roboto", '-webkit-line-clamp': "2"};
},
),
),
),
),
Positioned(
top: 35,
left: 10,
child: SizedBox(
width: 50,
height: 50,
child: InkWell(
onTap: () {
Navigator.of(context).pop();
},
child: Container(
decoration: const BoxDecoration(
color: kMainColor,
shape: BoxShape.circle,
),
child: const Icon(Icons.arrow_back, size: 23, color: Colors.white)
),
)
),
),
],
),
),
Expanded(child: Container(
margin: const EdgeInsets.only(top: 0),
decoration: const BoxDecoration(
boxShadow: [
BoxShadow(
color: kMainGrey,
spreadRadius: 0.5,
blurRadius: 2,
offset: Offset(0, 1), // changes position of shadow
),
],
color: kBackgroundColor,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(30),
topRight: Radius.circular(30),
),
),
child: ClipRRect(
borderRadius: const BorderRadius.only(
topLeft: Radius.circular(30),
topRight: Radius.circular(30),
),
child: pdfDTO.pdfs != null && pdfDTO.pdfs!.isNotEmpty ?
Center(
child: Stack(
children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: ValueListenableBuilder<OrderedTranslationAndResourceDTO?>(
valueListenable: selectedPdf,
builder: (context, value, _) {
return FutureBuilder(
future: createFileOfPdfUrl(visitAppContext, value!),
builder: (context, AsyncSnapshot<dynamic> snapshot) {
print("snapshot.data");
print(snapshot.data);
if (snapshot.connectionState == ConnectionState.done) {
if(snapshot.data == null) {
return Center(child: Text("Aucun fichier à afficher"));
} else {
return Stack(
children: [
PDFView(
filePath: snapshot.data.path,
enableSwipe: true,
fitEachPage: true,
swipeHorizontal: true,
autoSpacing: false,
pageFling: true,
fitPolicy: FitPolicy.HEIGHT,
onRender: (_pages) {
//setState(() {
pages = _pages;
isReady = true;
//});
},
onError: (error) {
print(error.toString());
},
onPageError: (page, error) {
print('$page: ${error.toString()}');
},
onViewCreated: (PDFViewController pdfViewController) {
//_controller.complete(pdfViewController);
},
onPageChanged: (int? page, int? total) {
currentPage = page;
pages = total;
currentState.value = {'page': page!, 'total': total!};
print('page change: $page/$total');
},
),
Positioned(
bottom: 20,
left: 20,
child: ValueListenableBuilder<Map<String, int>>(
valueListenable: currentState,
builder: (context, value, _) {
return Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.all(Radius.circular(visitAppContext.configuration!.roundedValue?.toDouble() ?? 20.0)),
color: primaryColor
),
child: Padding(
padding: const EdgeInsets.all(6.0),
child: Text("${value["page"]!+1}/${value["total"]!}",
style: const TextStyle(color: Colors.white, fontSize: 20)),
)
);
},
),
),
],
);
}
} else {
return Center(
child: Container(
child: LoadingCommon()
)
);
}
}
);
}
),
),
pdfDTO.pdfs!.length > 1 ? Align(
alignment: Alignment.centerLeft,
child: PdfFilter(
pdfsList: pdfDTO.pdfs!,
onPDFSelected: (selectedOrder) {
selectedPdf.value = pdfDTO.pdfs!.firstWhere((pdf) => pdf.order == selectedOrder);
}),
): const SizedBox(),
],
),
) :
Center(child: Text("Aucun pdf à afficher", style: TextStyle(fontSize: kNoneInfoOrIncorrect))))
)
)
],
)
],
);
/**/
}
} //_webView
Future<File?> _checkIfLocalResourceExists(VisitAppContext visitAppContext, String resourceId) async {
try {
Directory? appDocumentsDirectory = Platform.isIOS ? await getApplicationDocumentsDirectory() : await getDownloadsDirectory();
String localPath = appDocumentsDirectory!.path;
Directory configurationDirectory = Directory('$localPath/${visitAppContext.configuration!.id}');
List<FileSystemEntity> fileList = configurationDirectory.listSync();
if(fileList.any((fileL) => fileL.uri.pathSegments.last.contains(resourceId))) {
File file = File(fileList.firstWhere((fileL) => fileL.uri.pathSegments.last.contains(resourceId)).path);
return file;
}
} catch (e) {
print("ERROR _checkIfLocalResourceExists PDF");
print(e);
}
return null;
}