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fix: Switch to pdfrx pdf rendering library

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This commit is contained in:
Anton Stubenbord
2024-01-07 17:46:33 +01:00
parent 27c4f7c937
commit 30f1e64cd4
13 changed files with 330 additions and 289 deletions
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116
lib/features/documents/view/pages/document_view.dart
View File

@@ -1,8 +1,10 @@
import 'dart:math';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_animate/flutter_animate.dart';
import 'package:paperless_mobile/core/extensions/flutter_extensions.dart';
import 'package:pdfx/pdfx.dart';
import 'package:pdfrx/pdfrx.dart';
class DocumentView extends StatefulWidget {
final Future<Uint8List> documentBytes;
@@ -10,27 +12,37 @@ class DocumentView extends StatefulWidget {
final bool showAppBar;
final bool showControls;
const DocumentView({
Key? key,
super.key,
required this.documentBytes,
this.showAppBar = true,
this.showControls = true,
this.title,
}) : super(key: key);
});
@override
State<DocumentView> createState() => _DocumentViewState();
}
class _DocumentViewState extends State<DocumentView> {
late final PdfController _controller;
final PdfViewerController _controller = PdfViewerController();
int _currentPage = 1;
int? _totalPages;
@override
void initState() {
super.initState();
final document =
widget.documentBytes.then((value) => PdfDocument.openData(value));
_controller = PdfController(document: document);
_controller.addListener(() {
if (mounted) {
if (_controller.pageNumber != null) {
setState(() {
_currentPage = _controller.pageNumber!;
});
}
setState(() {
_totalPages = _controller.pages.length;
});
}
});
}
@override
@@ -45,8 +57,7 @@ class _DocumentViewState extends State<DocumentView> {
? 0.milliseconds
: 100.milliseconds;
final canGoToNextPage = _totalPages != null && _currentPage < _totalPages!;
final canGoToPreviousPage =
_controller.pagesCount != null && _currentPage > 1;
final canGoToPreviousPage = _totalPages != null && _currentPage > 1;
return Scaffold(
appBar: widget.showAppBar
? AppBar(
@@ -63,9 +74,8 @@ class _DocumentViewState extends State<DocumentView> {
IconButton.filled(
onPressed: canGoToPreviousPage
? () async {
await _controller.previousPage(
duration: pageTransitionDuration,
curve: Curves.easeOut,
await _controller.goToPage(
pageNumber: _currentPage - 1,
);
}
: null,
@@ -75,9 +85,8 @@ class _DocumentViewState extends State<DocumentView> {
IconButton.filled(
onPressed: canGoToNextPage
? () async {
await _controller.nextPage(
duration: pageTransitionDuration,
curve: Curves.easeOut,
await _controller.goToPage(
pageNumber: _currentPage + 1,
);
}
: null,
@@ -86,14 +95,13 @@ class _DocumentViewState extends State<DocumentView> {
],
),
),
PdfPageNumber(
controller: _controller,
builder: (context, loadingState, page, pagesCount) {
if (loadingState != PdfLoadingState.success) {
Builder(
builder: (context) {
if (_totalPages == null) {
return const Text("-/-");
}
return Text(
"$page/$pagesCount",
"$_currentPage/$_totalPages",
style: Theme.of(context).textTheme.titleMedium,
).padded();
},
@@ -102,21 +110,61 @@ class _DocumentViewState extends State<DocumentView> {
),
)
: null,
body: PdfView(
controller: _controller,
onDocumentLoaded: (document) {
if (mounted) {
setState(() {
_totalPages = document.pagesCount;
});
}
},
onPageChanged: (page) {
if (mounted) {
setState(() {
_currentPage = page;
});
body: FutureBuilder<Uint8List>(
future: widget.documentBytes,
builder: (context, snapshot) {
if (!snapshot.hasData) {
return Center(
child: CircularProgressIndicator(),
);
}
return PdfViewer.data(
snapshot.data!,
controller: _controller,
anchor: PdfPageAnchor.all,
displayParams: PdfViewerParams(
backgroundColor: Theme.of(context).colorScheme.background,
margin: 0,
layoutPages: (pages, params) {
final height =
pages.fold(0.0, (prev, page) => max(prev, page.height)) +
params.margin * 2;
final pageLayouts = <Rect>[];
double x = params.margin;
for (var page in pages) {
pageLayouts.add(
Rect.fromLTWH(
x,
(height - page.height) / 2, // center vertically
page.width,
page.height,
),
);
x += page.width + params.margin;
}
return PdfPageLayout(
pageLayouts: pageLayouts,
documentSize: Size(x, height),
);
},
),
// controller: _controller,
// onDocumentLoaded: (document) {
// if (mounted) {
// setState(() {
// _totalPages = document.pagesCount;
// });
// }
// },
// onPageChanged: (page) {
// if (mounted) {
// setState(() {
// _currentPage = page;
// });
// }
// },
);
},
),
);

16
lib/features/documents/view/widgets/items/document_list_item.dart
View File

@@ -44,13 +44,15 @@ class DocumentListItem extends DocumentItem {
children: [
Row(
children: [
AbsorbPointer(
absorbing: isSelectionActive,
child: CorrespondentWidget(
isClickable: isLabelClickable,
correspondent:
labelRepository.correspondents[document.correspondent],
onSelected: onCorrespondentSelected,
Flexible(
child: AbsorbPointer(
absorbing: isSelectionActive,
child: CorrespondentWidget(
isClickable: isLabelClickable,
correspondent:
labelRepository.correspondents[document.correspondent],
onSelected: onCorrespondentSelected,
),
),
),
],