New downloader, with progress indicator.

.gitignore

@@ -29,3 +29,5 @@ android/
 windows/
 list.csv
 *.xz
+*.iso
+*.conf

README.md

@@ -62,9 +62,11 @@ If there are some options (Windows language, Pop!_OS nvidia or Intel, etc..), th
 
 ![Option is diplayed](./assets/github/screenshot9.png)
 
-Then click "Download". The ISO will be downloaded in the current working directory, in 99% of cases that will be the directory where `quickgui` was invoked from. The spinner will tell you where the file is being downloaded.
+Then click "Download". The ISO will be downloaded in the current working directory, in 99% of cases that will be the directory where `quickgui` was invoked from.
 
-![All set !](./assets/github/screenshot6.png)
+![Waiting for download](./assets/github/screenshot10.png)
 
-![Downloading](./assets/github/screenshot7.png)
+![Downloading](./assets/github/screenshot11.png)
+
+![Download finished](./assets/github/screenshot12.png)
 

lib/src/pages/downloader.dart

@@ -0,0 +1,130 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:quickgui/src/model/operating_system.dart';
+import 'package:quickgui/src/model/version.dart';
+
+class Downloader extends StatefulWidget {
+  const Downloader({
+    Key? key,
+    required this.operatingSystem,
+    required this.version,
+    this.option,
+  }) : super(key: key);
+
+  final OperatingSystem operatingSystem;
+  final Version version;
+  final String? option;
+
+  @override
+  _DownloaderState createState() => _DownloaderState();
+}
+
+class _DownloaderState extends State<Downloader> {
+  final pattern = RegExp("( [0-9]+%)");
+  late final Stream<double> _progressStream;
+  bool _downloadFinished = false;
+
+  @override
+  void initState() {
+    _progressStream = progressStream();
+    super.initState();
+  }
+
+  Stream<double> progressStream() {
+    var options = [widget.operatingSystem.code, widget.version.version];
+    if (widget.option != null) {
+      options.add(widget.option!);
+    }
+    var controller = StreamController<double>();
+    Process.start('quickget', options).then((process) {
+      process.stderr.transform(utf8.decoder).forEach((line) {
+        var matches = pattern.allMatches(line).toList();
+        if (matches.isNotEmpty) {
+          var percent = matches[0].group(1);
+          if (percent != null) {
+            var value = double.parse(percent.replaceAll('%', '')) / 100.0;
+            controller.add(value);
+          }
+        }
+      });
+      process.exitCode.then((value) {
+        controller.close();
+        setState(() {
+          _downloadFinished = true;
+        });
+      });
+    });
+    return controller.stream;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    //process.then((process) {
+    //  process.stderr.transform(utf8.decoder).forEach((e) {
+    //    var matches = pattern.allMatches(e).toList();
+    //    var percent = matches[0].group(1);
+    //    if (percent != null) {}
+    //  });
+    //});
+
+    return Scaffold(
+      appBar: AppBar(
+        title: Text('Downloading ${widget.operatingSystem.name} ${widget.version.version}' + (widget.option != null ? ' (${widget.option})' : '')),
+        automaticallyImplyLeading: false,
+      ),
+      body: Column(children: [
+        Expanded(
+          child: StreamBuilder(
+            stream: _progressStream,
+            builder: (context, AsyncSnapshot<double> snapshot) {
+              return Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  Padding(
+                    padding: const EdgeInsets.all(8.0),
+                    child: _downloadFinished
+                        ? const Text('Download finished.')
+                        : snapshot.hasData
+                            ? Text('Downloading...${(snapshot.data! * 100).toInt()}%')
+                            : const Text('Waiting for download to start'),
+                  ),
+                  Padding(
+                    padding: const EdgeInsets.all(8.0),
+                    child: SizedBox(
+                      width: 200,
+                      child: LinearProgressIndicator(
+                        value: _downloadFinished
+                            ? 1
+                            : snapshot.hasData
+                                ? snapshot.data!
+                                : null,
+                      ),
+                    ),
+                  ),
+                ],
+              );
+            },
+          ),
+        ),
+        Padding(
+          padding: const EdgeInsets.all(8.0),
+          child: Row(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              ElevatedButton(
+                  onPressed: _downloadFinished
+                      ? () {
+                          Navigator.of(context).pop();
+                        }
+                      : null,
+                  child: _downloadFinished ? const Text('Dimiss') : const Text('Cancel'))
+            ],
+          ),
+        ),
+      ]),
+    );
+  }
+}

lib/src/widgets/home_page_buttons.dart

@@ -1,9 +1,11 @@
+import 'dart:convert';
 import 'dart:io';
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:quickgui/src/model/operating_system.dart';
 import 'package:quickgui/src/model/version.dart';
+import 'package:quickgui/src/pages/downloader.dart';
 import 'package:quickgui/src/pages/operating_system_selection.dart';
 import 'package:quickgui/src/pages/version_selection.dart';
 import 'package:quickgui/src/widgets/home_page_button.dart';
@@ -72,11 +74,28 @@ class _HomePageButtonsState extends State<HomePageButtons> {
           text: 'Download',
           onPressed: (_selectedVersion == null)
               ? null
-              : () async {
+              : () {
+                  Navigator.of(context).push(MaterialPageRoute(
+                      builder: (context) => Downloader(
+                            operatingSystem: _selectedOperatingSystem!,
+                            version: _selectedVersion!,
+                            option: _selectedOption,
+                          )));
+                  /*
                   showLoadingIndicator(text: 'Downloading');
-                  await Process.run('quickget', [_selectedOperatingSystem!.code, _selectedVersion!.version]);
+                  //await Process.run('quickget', [_selectedOperatingSystem!.code, _selectedVersion!.version]);
+                  var options = [_selectedOperatingSystem!.code, _selectedVersion!.version];
+                  if (_selectedOption != null) {
+                    options.add(_selectedOption!);
+                  }
+                  var process = await Process.start('quickget', options);
+                  process.stderr.transform(utf8.decoder).forEach(
+                    
+                  );
+                  var exitCode = await process.exitCode;
                   hideLoadingIndicator();
                   showDoneDialog(operatingSystem: _selectedOperatingSystem!.code, version: _selectedVersion!.version);
+                  */
                 },
         ),
       ],

pubspec.yaml

@@ -15,7 +15,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
-version: 1.0.0+3
+version: 1.0.0+4
 
 environment:
   sdk: ">=2.12.0 <3.0.0"