FurryChat/lib/components/dialogs/send_file_dialog.dart

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import 'dart:typed_data';
import 'dart:ui';
import 'package:famedlysdk/famedlysdk.dart';
import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
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import 'package:native_imaging/native_imaging.dart' as native;
import '../../components/dialogs/simple_dialogs.dart';
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import '../../utils/matrix_file_extension.dart';
import '../../utils/room_send_file_extension.dart';
class SendFileDialog extends StatefulWidget {
final Room room;
final MatrixFile file;
const SendFileDialog({this.room, this.file, Key key}) : super(key: key);
@override
_SendFileDialogState createState() => _SendFileDialogState();
}
class _SendFileDialogState extends State<SendFileDialog> {
bool origImage = false;
Future<void> _send() async {
var file = widget.file;
if (file is MatrixImageFile && !origImage) {
final imgFile = file as MatrixImageFile;
// resize to max 1600 x 1600
try {
await native.init();
var nativeImg = native.Image();
try {
await nativeImg.loadEncoded(imgFile.bytes);
imgFile.width = nativeImg.width();
imgFile.height = nativeImg.height();
} on UnsupportedError {
final dartCodec = await instantiateImageCodec(imgFile.bytes);
final dartFrame = await dartCodec.getNextFrame();
imgFile.width = dartFrame.image.width;
imgFile.height = dartFrame.image.height;
final rgbaData = await dartFrame.image.toByteData();
final rgba = Uint8List.view(
rgbaData.buffer, rgbaData.offsetInBytes, rgbaData.lengthInBytes);
dartFrame.image.dispose();
dartCodec.dispose();
nativeImg.loadRGBA(imgFile.width, imgFile.height, rgba);
}
const max = 1600;
if (imgFile.width > max || imgFile.height > max) {
var w = max, h = max;
if (imgFile.width > imgFile.height) {
h = max * imgFile.height ~/ imgFile.width;
} else {
w = max * imgFile.width ~/ imgFile.height;
}
final scaledImg = nativeImg.resample(w, h, native.Transform.lanczos);
nativeImg.free();
nativeImg = scaledImg;
}
final jpegBytes = await nativeImg.toJpeg(75);
file = MatrixImageFile(
bytes: jpegBytes,
name: 'scaled_' + imgFile.name.split('.').first + '.jpg');
nativeImg.free();
} catch (e) {
// couldn't resize
}
}
await widget.room.sendFileEventWithThumbnail(file);
}
@override
Widget build(BuildContext context) {
var sendStr = L10n.of(context).sendFile;
if (widget.file is MatrixImageFile) {
sendStr = L10n.of(context).sendImage;
} else if (widget.file is MatrixAudioFile) {
sendStr = L10n.of(context).sendAudio;
} else if (widget.file is MatrixVideoFile) {
sendStr = L10n.of(context).sendVideo;
}
Widget contentWidget;
if (widget.file is MatrixImageFile) {
contentWidget = Column(mainAxisSize: MainAxisSize.min, children: <Widget>[
Flexible(
child: Image.memory(
widget.file.bytes,
fit: BoxFit.contain,
),
),
Text(widget.file.name),
Row(
children: <Widget>[
Checkbox(
value: origImage,
onChanged: (v) => setState(() => origImage = v),
),
InkWell(
onTap: () => setState(() => origImage = !origImage),
child: Text(L10n.of(context).sendOriginal +
' (${widget.file.sizeString})'),
),
],
)
]);
} else {
contentWidget = Text('${widget.file.name} (${widget.file.sizeString})');
}
return AlertDialog(
title: Text(sendStr),
content: contentWidget,
actions: <Widget>[
FlatButton(
child: Text(L10n.of(context).cancel),
onPressed: () {
// just close the dialog
Navigator.of(context).pop();
},
),
FlatButton(
child: Text(L10n.of(context).send),
onPressed: () async {
await SimpleDialogs(context).tryRequestWithLoadingDialog(_send());
await Navigator.of(context).pop();
},
),
],
);
}
}