345 lines
12 KiB
Dart
345 lines
12 KiB
Dart
import 'dart:async';
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import 'dart:convert';
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import 'dart:io' as file;
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import 'package:flutter_redux/flutter_redux.dart';
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import 'package:flutter_share/flutter_share.dart';
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import 'package:http/http.dart' as http;
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import 'package:flutter/material.dart';
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import 'package:http/http.dart';
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import 'package:invoiceninja_flutter/constants.dart';
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import 'package:invoiceninja_flutter/data/models/invoice_model.dart';
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import 'package:flutter/foundation.dart';
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import 'package:invoiceninja_flutter/data/models/models.dart';
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import 'package:invoiceninja_flutter/data/web_client.dart';
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import 'package:invoiceninja_flutter/redux/app/app_actions.dart';
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import 'package:invoiceninja_flutter/redux/app/app_state.dart';
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import 'package:invoiceninja_flutter/ui/app/buttons/app_text_button.dart';
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import 'package:invoiceninja_flutter/ui/app/forms/app_dropdown_button.dart';
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import 'package:invoiceninja_flutter/ui/app/loading_indicator.dart';
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import 'package:invoiceninja_flutter/ui/app/presenters/entity_presenter.dart';
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import 'package:invoiceninja_flutter/utils/dialogs.dart';
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import 'package:invoiceninja_flutter/utils/formatting.dart';
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import 'package:invoiceninja_flutter/utils/localization.dart';
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import 'package:invoiceninja_flutter/utils/platforms.dart';
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import 'package:native_pdf_view/native_pdf_view.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:invoiceninja_flutter/utils/web_stub.dart'
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if (dart.library.html) 'package:invoiceninja_flutter/utils/web.dart';
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import 'package:invoiceninja_flutter/ui/invoice/invoice_pdf_vm.dart';
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class InvoicePdfView extends StatefulWidget {
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const InvoicePdfView({
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Key key,
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@required this.viewModel,
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this.showAppBar = true,
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}) : super(key: key);
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final EntityPdfVM viewModel;
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final bool showAppBar;
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@override
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_InvoicePdfViewState createState() => _InvoicePdfViewState();
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}
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class _InvoicePdfViewState extends State<InvoicePdfView> {
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bool _isLoading = true;
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bool _isDeliveryNote = false;
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String _activityId;
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String _pdfString;
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http.Response _response;
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PdfController _pdfController;
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int _pageNumber = 1, _pageCount = 1;
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@override
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void initState() {
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super.initState();
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_activityId = widget.viewModel.activityId;
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}
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@override
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void didChangeDependencies() {
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super.didChangeDependencies();
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loadPdf();
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}
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void loadPdf() {
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setState(() {
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_isLoading = true;
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});
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_loadPDF(
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context,
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widget.viewModel.invoice,
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_isDeliveryNote,
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_activityId,
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).then((response) {
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setState(() {
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_response = response;
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_isLoading = false;
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});
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if (kIsWeb) {
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_pdfString =
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'data:application/pdf;base64,' + base64Encode(response.bodyBytes);
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WebUtils.registerWebView(_pdfString);
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} else {
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final document = PdfDocument.openData(_response.bodyBytes);
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if (_pdfController == null) {
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_pdfController = PdfController(document: document);
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} else {
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// loadDocument is causing an error
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//_pdfController.loadDocument(document);
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_pdfController?.dispose();
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_pdfController = PdfController(document: document);
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}
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}
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}).catchError((Object error) {
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_isLoading = false;
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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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final store = StoreProvider.of<AppState>(context);
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final state = store.state;
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final localization = AppLocalization.of(context);
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final invoice = widget.viewModel.invoice;
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final client = state.clientState.get(invoice.clientId);
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final pageSelector = _pageCount == 1
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? <Widget>[]
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: [
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IconButton(
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icon: Icon(Icons.navigate_before),
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onPressed: _pageNumber > 1
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? () => _pdfController.previousPage(
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duration:
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Duration(milliseconds: kDefaultAnimationDuration),
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curve: Curves.easeInOutCubic,
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)
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: null,
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),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 8),
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child: Text(localization.pdfPageInfo
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.replaceFirst(':current', '$_pageNumber')
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.replaceFirst(':total', '$_pageCount')),
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),
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IconButton(
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icon: Icon(Icons.navigate_next),
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onPressed: _pageNumber < _pageCount
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? () => _pdfController.nextPage(
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duration:
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Duration(milliseconds: kDefaultAnimationDuration),
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curve: Curves.easeInOutCubic,
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)
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: null,
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),
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];
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final activitySelector = _activityId == null || kIsWeb
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? <Widget>[]
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: [
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Flexible(
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child: IgnorePointer(
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ignoring: _isLoading,
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child: AppDropdownButton<String>(
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value: _activityId,
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onChanged: (dynamic activityId) {
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setState(() {
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_activityId = activityId;
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loadPdf();
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});
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},
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items: invoice.history
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.map((history) => DropdownMenuItem(
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child: Text(formatNumber(history.amount, context,
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clientId: invoice.clientId) +
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' • ' +
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formatDate(
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convertTimestampToDateString(
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history.createdAt),
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context,
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showTime: true)),
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value: history.activityId,
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))
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.toList()),
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),
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),
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];
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final deliveryNote = Theme(
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data: ThemeData(
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unselectedWidgetColor: state.headerTextColor,
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),
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child: Container(
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width: 200,
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child: CheckboxListTile(
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title: Text(
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localization.deliveryNote,
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style: TextStyle(
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color: state.headerTextColor,
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),
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),
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value: _isDeliveryNote,
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onChanged: (value) {
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setState(() {
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_isDeliveryNote = !_isDeliveryNote;
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loadPdf();
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});
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},
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controlAffinity: ListTileControlAffinity.leading,
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activeColor: state.accentColor,
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),
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),
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);
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bool showEmail =
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isDesktop(context) && _activityId == null && !invoice.isRecurring;
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// TODO: remove this code
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// hide email option on web to prevent dialog problem
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if (kIsWeb && !client.hasEmailAddress) {
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showEmail = false;
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}
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return Scaffold(
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backgroundColor: Colors.grey,
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appBar: widget.showAppBar
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? AppBar(
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centerTitle: false,
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automaticallyImplyLeading: isMobile(context),
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title: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Expanded(
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child: Text(
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EntityPresenter().initialize(invoice, context).title),
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),
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if (isDesktop(context)) ...activitySelector,
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if (isDesktop(context)) ...pageSelector,
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if (isDesktop(context) &&
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invoice.isInvoice &&
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_activityId == null)
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deliveryNote,
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],
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),
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actions: <Widget>[
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if (showEmail)
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TextButton(
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child: Text(localization.email,
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style: TextStyle(color: state.headerTextColor)),
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onPressed: () {
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handleEntityAction(invoice,
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EntityAction.emailEntityType(invoice.entityType));
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},
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),
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AppTextButton(
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isInHeader: true,
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label: localization.download,
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onPressed: _response == null
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? null
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: () async {
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final fileName =
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localization.lookup('${invoice.entityType}') +
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'_' +
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(invoice.number.isEmpty
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? localization.pending
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: invoice.number) +
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'.pdf';
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if (kIsWeb) {
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WebUtils.downloadBinaryFile(
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fileName, _response.bodyBytes);
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} else {
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final directory =
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await getExternalStorageDirectory();
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final filePath =
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'${directory.path}/${invoice.invoiceId}.pdf';
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final pdfData = file.File(filePath);
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pdfData.writeAsBytes(_response.bodyBytes);
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await FlutterShare.shareFile(
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title: fileName, filePath: filePath);
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}
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},
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),
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if (isDesktop(context))
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TextButton(
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child: Text(localization.close,
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style: TextStyle(color: state.headerTextColor)),
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onPressed: () {
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viewEntity(entity: invoice);
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},
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),
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],
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)
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: null,
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body: _isLoading
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? LoadingIndicator()
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: kIsWeb
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? HtmlElementView(viewType: _pdfString)
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: Padding(
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padding: const EdgeInsets.all(8),
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child: PdfView(
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controller: _pdfController,
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onDocumentLoaded: (document) {
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setState(() {
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_pageCount = document?.pagesCount ?? 0;
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});
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},
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onPageChanged: (page) {
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setState(() {
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_pageNumber = page;
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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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Future<Response> _loadPDF(
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BuildContext context,
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InvoiceEntity invoice,
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bool isDeliveryNote,
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String activityId,
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) async {
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http.Response response;
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if (activityId != null || isDeliveryNote) {
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final store = StoreProvider.of<AppState>(context);
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final credential = store.state.credentials;
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final url = isDeliveryNote
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? '/invoices/${invoice.id}/delivery_note'
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: '/activities/download_entity/$activityId';
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response = await WebClient()
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.get('${credential.url}$url', credential.token, rawResponse: true);
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} else {
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final invitation = invoice.invitations.first;
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final url = invitation.downloadLink;
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response = await http.Client().get(url);
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}
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if (response.statusCode >= 400) {
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String errorMessage =
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'${response.statusCode}: ${response.reasonPhrase}\n\n';
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try {
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errorMessage += jsonDecode(response.body)['message'];
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} catch (error) {
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errorMessage += response.body;
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}
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showErrorDialog(context: context, message: errorMessage);
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throw errorMessage;
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}
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return response;
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}
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