ThatOneJackalGuy/OpenContacts
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Add basic rendering of formatted text

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This commit is contained in:
Nutcake 2023-05-12 18:31:05 +02:00
parent 0c5e354a31
commit cc81d375e0
12 changed files with 338 additions and 26 deletions
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2
android/build.gradle
View file

@ -26,6 +26,6 @@ subprojects {
project.evaluationDependsOn(':app')
}
task clean(type: Delete) {
tasks.register("clean", Delete) {
delete rootProject.buildDir
}

24
lib/models/message.dart
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@ -4,6 +4,7 @@ import 'dart:developer';
import 'package:contacts_plus_plus/clients/api_client.dart';
import 'package:contacts_plus_plus/apis/message_api.dart';
import 'package:contacts_plus_plus/auxiliary.dart';
import 'package:contacts_plus_plus/string_formatter.dart';
import 'package:uuid/uuid.dart';
enum MessageType {
@ -43,11 +44,13 @@ class Message implements Comparable {
final String senderId;
final MessageType type;
final String content;
final FormatNode formattedContent;
final DateTime sendTime;
final MessageState state;
Message({required this.id, required this.recipientId, required this.senderId, required this.type,
required this.content, required this.sendTime, this.state=MessageState.local});
required this.content, required this.sendTime, this.state=MessageState.local})
: formattedContent = FormatNode.fromText(content);
factory Message.fromMap(Map map, {MessageState? withState}) {
final typeString = (map["messageType"] as String?) ?? "";
@ -68,10 +71,21 @@ class Message implements Comparable {
Message copy() => copyWith();
Message copyWith({String? id, String? recipientId, String? senderId, MessageType? type, String? content,
DateTime? sendTime, MessageState? state}) {
return Message(id: id ?? this.id, recipientId: recipientId ?? this.recipientId, senderId: senderId ?? this.senderId,
type: type ?? this.type, content: content ?? this.content, sendTime: sendTime ?? this.sendTime,
Message copyWith({
String? id,
String? recipientId,
String? senderId,
MessageType? type,
String? content,
DateTime? sendTime,
MessageState? state}) {
return Message(
id: id ?? this.id,
recipientId: recipientId ?? this.recipientId,
senderId: senderId ?? this.senderId,
type: type ?? this.type,
content: content ?? this.content,
sendTime: sendTime ?? this.sendTime,
state: state ?? this.state
);
}

6
lib/models/session.dart
View file

@ -1,12 +1,16 @@
import 'package:contacts_plus_plus/string_formatter.dart';
class Session {
final String id;
final String name;
final FormatNode formattedName;
final List<SessionUser> sessionUsers;
final String thumbnail;
final int maxUsers;
final bool hasEnded;
final bool isValid;
final String description;
final FormatNode formattedDescription;
final List<String> tags;
final bool headlessHost;
final String hostUsername;
@ -15,7 +19,7 @@ class Session {
Session({required this.id, required this.name, required this.sessionUsers, required this.thumbnail,
required this.maxUsers, required this.hasEnded, required this.isValid, required this.description,
required this.tags, required this.headlessHost, required this.hostUsername, required this.accessLevel,
});
}) : formattedName = FormatNode.fromText(name), formattedDescription = FormatNode.fromText(description);
factory Session.fromMap(Map map) {
return Session(

221
lib/string_formatter.dart Normal file
View file

@ -0,0 +1,221 @@
import 'package:color/color.dart' as cc;
import 'package:flutter/material.dart';
class FormatNode {
String text;
final FormatData format;
final List<FormatNode> children;
FormatNode({required this.text, required this.format, required this.children});
bool get isUnformatted => format.isUnformatted && children.isEmpty;
bool get isEmpty => text.isEmpty && children.isEmpty;
factory FormatNode.unformatted(String? text) {
return FormatNode(text: text ?? "", format: FormatData.unformatted(), children: const []);
}
factory FormatNode.fromText(String? text) {
if (text == null) return FormatNode.unformatted(text);
var tags = FormatTag.parseTags(text);
if (tags.isEmpty) return FormatNode.unformatted(text);
final root = FormatNode(
format: FormatData.unformatted(),
text: text.substring(0, tags.first.startIndex),
children: [],
);
final activeTags = <FormatData>[];
for (int i = 0; i < tags.length; i++) {
final tag = tags[i];
final substr = text.substring(tag.endIndex, (i + 1 < tags.length) ? tags[i + 1].startIndex : null);
if (tag.format.isAdditive) {
activeTags.add(tag.format);
} else {
final idx = activeTags.lastIndexWhere((element) => element.name == tag.format.name);
if (idx != -1) {
activeTags.removeAt(idx);
}
}
if (substr.isNotEmpty) {
root.children.add(
FormatNode.buildFromStyles(activeTags, substr)
);
}
}
return root;
}
TextSpan toTextSpan({required TextStyle baseStyle}) {
final spanTree = TextSpan(
text: text,
style: format.isUnformatted ? baseStyle : format.style(),
children: children.map((e) => e.toTextSpan(baseStyle: baseStyle)).toList()
);
return spanTree;
}
static FormatNode buildFromStyles(List<FormatData> styles, String text) {
if (styles.isEmpty) return FormatNode(format: FormatData.unformatted(), children: [], text: text);
final root = FormatNode(text: "", format: styles.first, children: []);
var current = root;
for (final style in styles.sublist(1)) {
final next = FormatNode(text: "", format: style, children: []);
current.children.add(next);
current = next;
}
current.text = text;
return root;
}
}
class FormatTag {
final int startIndex;
final int endIndex;
final FormatData format;
const FormatTag({
required this.startIndex,
required this.endIndex,
required this.format,
});
static List<FormatTag> parseTags(String text) {
final startMatches = RegExp(r"<(.+?)>").allMatches(text);
final spans = <FormatTag>[];
for (final startMatch in startMatches) {
final fullTag = startMatch.group(1);
if (fullTag == null) continue;
final tag = FormatData.parse(fullTag);
spans.add(
FormatTag(
startIndex: startMatch.start,
endIndex: startMatch.end,
format: tag,
)
);
}
return spans;
}
}
class FormatAction {
final String Function(String input, String parameter)? transform;
final TextStyle Function(String? parameter, TextStyle baseStyle)? style;
FormatAction({this.transform, this.style});
}
class FormatData {
static Color? tryParseColor(String? text) {
if (text == null) return null;
var color = cc.RgbColor.namedColors[text];
if (color != null) {
return Color.fromARGB(255, color.r.round(), color.g.round(), color.b.round());
}
try {
color = cc.HexColor(text);
return Color.fromARGB(255, color.r.round(), color.g.round(), color.b.round());
} catch (_) {
return null;
}
}
static final Map<String, FormatAction> _richTextTags = {
"align": FormatAction(),
"alpha": FormatAction(style: (param, baseStyle) {
if (param == null || !param.startsWith("#")) return baseStyle;
final alpha = int.tryParse(param.substring(1), radix: 16);
if (alpha == null) return baseStyle;
return baseStyle.copyWith(color: baseStyle.color?.withAlpha(alpha));
}),
"color": FormatAction(style: (param, baseStyle) {
if (param == null) return baseStyle;
final color = tryParseColor(param);
if (color == null) return baseStyle;
return baseStyle.copyWith(color: color);
}),
"b": FormatAction(style: (param, baseStyle) => baseStyle.copyWith(fontWeight: FontWeight.bold)),
"br": FormatAction(transform: (text, param) => "\n$text"),
"i": FormatAction(style: (param, baseStyle) => baseStyle.copyWith(fontStyle: FontStyle.italic)),
"cspace": FormatAction(),
"font": FormatAction(),
"indent": FormatAction(),
"line-height": FormatAction(),
"line-indent": FormatAction(),
"link": FormatAction(),
"lowercase": FormatAction(transform: (input, parameter) => input.toLowerCase(),),
"uppercase": FormatAction(transform: (input, parameter) => input.toUpperCase(),),
"smallcaps": FormatAction(),
"margin": FormatAction(),
"mark": FormatAction(style: (param, baseStyle) {
if (param == null) return baseStyle;
final color = tryParseColor(param);
if (color == null) return baseStyle;
return baseStyle.copyWith(backgroundColor: color);
}),
"mspace": FormatAction(),
"noparse": FormatAction(),
"nobr": FormatAction(),
"page": FormatAction(),
"pos": FormatAction(),
"size": FormatAction(
style: (param, baseStyle) {
if (param == null) return baseStyle;
if (param.endsWith("%")) {
final percentage = int.tryParse(param.replaceAll("%", ""));
if (percentage == null || percentage <= 0) return baseStyle;
final baseSize = baseStyle.fontSize ?? 12;
return baseStyle.copyWith(fontSize: baseSize * (percentage / 100));
} else {
final size = num.tryParse(param);
if (size == null || size <= 0) return baseStyle;
return baseStyle.copyWith(fontSize: size.toDouble());
}
}
),
"space": FormatAction(),
"sprite": FormatAction(),
"s": FormatAction(style: (param, baseStyle) => baseStyle.copyWith(decoration: TextDecoration.lineThrough)),
"u": FormatAction(style: (param, baseStyle) => baseStyle.copyWith(decoration: TextDecoration.underline)),
"style": FormatAction(),
"sub": FormatAction(),
"sup": FormatAction(),
"voffset": FormatAction(),
"width": FormatAction(),
};
final String name;
final String parameter;
final bool isAdditive;
const FormatData({required this.name, required this.parameter, required this.isAdditive});
factory FormatData.parse(String text) {
if (text.contains("/")) return FormatData(name: text.replaceAll("/", ""), parameter: "", isAdditive: false);
final sepIdx = text.indexOf("=");
if (sepIdx == -1) {
return FormatData(name: text, parameter: "", isAdditive: true);
} else {
return FormatData(
name: text.substring(0, sepIdx).trim().toLowerCase(),
parameter: text.substring(sepIdx + 1, text.length).trim().toLowerCase(),
isAdditive: true,
);
}
}
factory FormatData.unformatted() => const FormatData(name: "", parameter: "", isAdditive: false);
bool get isUnformatted => name.isEmpty && parameter.isEmpty && !isAdditive;
bool get isValid => _richTextTags.containsKey(name);
String? apply(String? text) => text == null ? null : _richTextTags[name]?.transform?.call(text, parameter);
TextStyle style() => _richTextTags[name]?.style?.call(parameter, const TextStyle()) ?? const TextStyle();
}

47
lib/widgets/formatted_text.dart Normal file
View file

@ -0,0 +1,47 @@
import 'package:contacts_plus_plus/string_formatter.dart';
import 'package:flutter/material.dart';
class FormattedText extends StatelessWidget {
const FormattedText(this.formatTree, {
this.style,
this.textAlign,
this.overflow,
this.softWrap,
this.maxLines,
super.key
});
final FormatNode formatTree;
final TextStyle? style;
final TextAlign? textAlign;
final TextOverflow? overflow;
final bool? softWrap;
final int? maxLines;
@override
Widget build(BuildContext context) {
if (formatTree.isUnformatted) {
return Text(
formatTree.text,
style: style,
textAlign: textAlign,
overflow: overflow,
softWrap: softWrap,
maxLines: maxLines,
);
} else {
return RichText(
text: formatTree.toTextSpan(
baseStyle: style ?? Theme
.of(context)
.textTheme
.bodyMedium!
),
textAlign: textAlign ?? TextAlign.start,
overflow: overflow ?? TextOverflow.clip,
softWrap: softWrap ?? true,
maxLines: maxLines,
);
}
}
}

17
lib/widgets/messages/message_asset.dart
View file

@ -6,6 +6,8 @@ import 'package:contacts_plus_plus/auxiliary.dart';
import 'package:contacts_plus_plus/client_holder.dart';
import 'package:contacts_plus_plus/models/photo_asset.dart';
import 'package:contacts_plus_plus/models/message.dart';
import 'package:contacts_plus_plus/string_formatter.dart';
import 'package:contacts_plus_plus/widgets/formatted_text.dart';
import 'package:contacts_plus_plus/widgets/messages/message_state_indicator.dart';
import 'package:flutter/material.dart';
import 'package:full_screen_image/full_screen_image.dart';
@ -18,7 +20,6 @@ class MessageAsset extends StatelessWidget {
final Message message;
final DateFormat _dateFormat = DateFormat.Hm();
@override
Widget build(BuildContext context) {
final content = jsonDecode(message.content);
@ -26,7 +27,7 @@ class MessageAsset extends StatelessWidget {
try {
photoAsset = PhotoAsset.fromTags((content["tags"] as List).map((e) => "$e").toList());
} catch (_) {}
final formattedName = FormatNode.fromText(content["name"]);
return Container(
constraints: const BoxConstraints(maxWidth: 300),
padding: const EdgeInsets.symmetric(vertical: 4, horizontal: 8),
@ -61,7 +62,17 @@ class MessageAsset extends StatelessWidget {
crossAxisAlignment: CrossAxisAlignment.end,
mainAxisSize: MainAxisSize.min,
children: [
Expanded(child: Text("${content["name"]}", maxLines: null, style: Theme.of(context).textTheme.bodySmall?.copyWith(color: Colors.white60),)),
Expanded(
child: FormattedText(
formattedName,
maxLines: null,
style: Theme
.of(context)
.textTheme
.bodySmall
?.copyWith(color: Colors.white60),
),
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 4.0),
child: Text(

14
lib/widgets/messages/message_bubble.dart
View file

@ -1,4 +1,5 @@
import 'package:contacts_plus_plus/models/message.dart';
import 'package:contacts_plus_plus/widgets/formatted_text.dart';
import 'package:contacts_plus_plus/widgets/messages/message_asset.dart';
import 'package:contacts_plus_plus/widgets/messages/message_audio_player.dart';
import 'package:contacts_plus_plus/widgets/messages/message_session_invite.dart';
@ -6,6 +7,9 @@ import 'package:contacts_plus_plus/widgets/messages/message_state_indicator.dart
import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
// The way these classes are laid out is pretty unclean, there's a lot of stuff that's shared between the different
// subwidgets with a lot of room for deduplication. Should probably redo this some day.
class MyMessageBubble extends StatelessWidget {
MyMessageBubble({required this.message, super.key});
@ -79,8 +83,8 @@ class MyMessageBubble extends StatelessWidget {
child: Column(
crossAxisAlignment: CrossAxisAlignment.end,
children: [
Text(
message.content,
FormattedText(
message.formattedContent,
softWrap: true,
maxLines: null,
style: Theme
@ -148,7 +152,6 @@ class OtherMessageBubble extends StatelessWidget {
@override
Widget build(BuildContext context) {
var content = message.content;
switch (message.type) {
case MessageType.sessionInvite:
return Row(
@ -193,7 +196,6 @@ class OtherMessageBubble extends StatelessWidget {
],
);
case MessageType.unknown:
rawText:
case MessageType.text:
return Row(
mainAxisSize: MainAxisSize.min,
@ -214,8 +216,8 @@ class OtherMessageBubble extends StatelessWidget {
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
content,
FormattedText(
message.formattedContent,
softWrap: true,
maxLines: null,
style: Theme

3
lib/widgets/messages/message_session_invite.dart
View file

@ -4,6 +4,7 @@ import 'package:contacts_plus_plus/client_holder.dart';
import 'package:contacts_plus_plus/auxiliary.dart';
import 'package:contacts_plus_plus/models/message.dart';
import 'package:contacts_plus_plus/models/session.dart';
import 'package:contacts_plus_plus/widgets/formatted_text.dart';
import 'package:contacts_plus_plus/widgets/generic_avatar.dart';
import 'package:contacts_plus_plus/widgets/messages/messages_session_header.dart';
import 'package:contacts_plus_plus/widgets/messages/message_state_indicator.dart';
@ -38,7 +39,7 @@ class MessageSessionInvite extends StatelessWidget {
Expanded(
child: Padding(
padding: const EdgeInsets.only(top: 4),
child: Text(sessionInfo.name, maxLines: null, softWrap: true, style: Theme.of(context).textTheme.titleMedium,),
child: FormattedText(sessionInfo.formattedName, maxLines: null, softWrap: true, style: Theme.of(context).textTheme.titleMedium,),
),
),
Padding(

4
lib/widgets/messages/messages_list.dart
View file

@ -126,9 +126,9 @@ class _MessagesListState extends State<MessagesList> {
builder: (context, mClient, _) {
final cache = mClient.getUserMessageCache(widget.friend.id);
if (cache == null) {
return Column(
return const Column(
mainAxisAlignment: MainAxisAlignment.start,
children: const [
children: [
LinearProgressIndicator()
],
);

15
lib/widgets/messages/messages_session_header.dart
View file

@ -1,6 +1,7 @@
import 'package:cached_network_image/cached_network_image.dart';
import 'package:contacts_plus_plus/auxiliary.dart';
import 'package:contacts_plus_plus/models/session.dart';
import 'package:contacts_plus_plus/widgets/formatted_text.dart';
import 'package:contacts_plus_plus/widgets/generic_avatar.dart';
import 'package:flutter/material.dart';
@ -30,8 +31,10 @@ class SessionPopup extends StatelessWidget {
Expanded(
child: ListView(
children: [
Text(session.name, style: Theme.of(context).textTheme.titleMedium),
Text(session.description.isEmpty ? "No description." : session.description, style: Theme.of(context).textTheme.labelMedium),
FormattedText(session.formattedName, style: Theme.of(context).textTheme.titleMedium),
session.formattedDescription.isEmpty
? const Text("No description")
: FormattedText(session.formattedDescription, style: Theme.of(context).textTheme.labelMedium),
Text("Tags: ${session.tags.isEmpty ? "None" : session.tags.join(", ")}",
style: Theme.of(context).textTheme.labelMedium,
softWrap: true,
@ -62,11 +65,11 @@ class SessionPopup extends StatelessWidget {
},
),
),
) else Expanded(
) else const Expanded(
child: Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: const [
children: [
Icon(Icons.person_remove_alt_1_rounded),
Padding(
padding: EdgeInsets.all(16.0),
@ -86,11 +89,11 @@ class SessionPopup extends StatelessWidget {
placeholder: (context, url) {
return const CircularProgressIndicator();
},
errorWidget: (context, error, what) => Column(
errorWidget: (context, error, what) => const Column(
mainAxisSize: MainAxisSize.max,
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: const [
children: [
Icon(Icons.no_photography),
Padding(
padding: EdgeInsets.all(16.0),

8
pubspec.lock
View file

@ -81,6 +81,14 @@ packages:
url: "https://pub.dev"
source: hosted
version: "1.17.1"
color:
dependency: "direct main"
description:
name: color
sha256: ddcdf1b3badd7008233f5acffaf20ca9f5dc2cd0172b75f68f24526a5f5725cb
url: "https://pub.dev"
source: hosted
version: "3.0.0"
crypto:
dependency: transitive
description:

3
pubspec.yaml
View file

@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
# In Windows, build-name is used as the major, minor, and patch parts
# of the product and file versions while build-number is used as the build suffix.
version: 1.1.1+1
version: 1.2.0+1
environment:
sdk: '>=3.0.0'
@ -55,6 +55,7 @@ dependencies:
provider: ^6.0.5
full_screen_image: ^2.0.0
photo_view: ^0.14.0
color: ^3.0.0
dev_dependencies:
flutter_test: