fluffychat/lib/pages/chat/events/image_bubble.dart

import 'package:flutter/material.dart';

import 'package:flutter_linkify/flutter_linkify.dart';
import 'package:matrix/matrix.dart';

import 'package:fluffychat/config/app_config.dart';
import 'package:fluffychat/pages/image_viewer/image_viewer.dart';
import 'package:fluffychat/utils/file_description.dart';
import 'package:fluffychat/utils/url_launcher.dart';
import 'package:fluffychat/widgets/mxc_image.dart';
import '../../../widgets/blur_hash.dart';

class ImageBubble extends StatelessWidget {
  final Event event;
  final bool tapToView;
  final BoxFit fit;
  final Color? backgroundColor;
  final Color? textColor;
  final Color? linkColor;
  final bool thumbnailOnly;
  final bool animated;
  final double width;
  final double height;
  final void Function()? onTap;
  final BorderRadius? borderRadius;
  final Timeline? timeline;

  const ImageBubble(
    this.event, {
    this.tapToView = true,
    this.backgroundColor,
    this.fit = BoxFit.contain,
    this.thumbnailOnly = true,
    this.width = 400,
    this.height = 300,
    this.animated = false,
    this.onTap,
    this.borderRadius,
    this.timeline,
    this.textColor,
    this.linkColor,
    super.key,
  });

  Widget _buildPlaceholder(BuildContext context) {
    final String blurHashString =
        event.infoMap['xyz.amorgan.blurhash'] is String
            ? event.infoMap['xyz.amorgan.blurhash']
            : 'LEHV6nWB2yk8pyo0adR*.7kCMdnj';
    return SizedBox(
      width: width,
      height: height,
      child: BlurHash(
        blurhash: blurHashString,
        width: width,
        height: height,
        fit: fit,
      ),
    );
  }

  void _onTap(BuildContext context) {
    if (onTap != null) {
      onTap!();
      return;
    }
    if (!tapToView) return;
    showDialog(
      context: context,
      builder: (_) => ImageViewer(
        event,
        timeline: timeline,
        outerContext: context,
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);

    var borderRadius =
        this.borderRadius ?? BorderRadius.circular(AppConfig.borderRadius);

    final fileDescription = event.fileDescription;
    final textColor = this.textColor;

    if (fileDescription != null) {
      borderRadius = borderRadius.copyWith(
        bottomLeft: Radius.zero,
        bottomRight: Radius.zero,
      );
    }

    return Column(
      mainAxisSize: MainAxisSize.min,
      spacing: 8,
      children: [
        Material(
          color: Colors.transparent,
          clipBehavior: Clip.hardEdge,
          shape: RoundedRectangleBorder(
            borderRadius: borderRadius,
            side: BorderSide(
              color: event.messageType == MessageTypes.Sticker
                  ? Colors.transparent
                  : theme.dividerColor,
            ),
          ),
          child: InkWell(
            onTap: () => _onTap(context),
            borderRadius: borderRadius,
            child: Hero(
              tag: event.eventId,
              child: MxcImage(
                event: event,
                width: width,
                height: height,
                fit: fit,
                animated: animated,
                isThumbnail: thumbnailOnly,
                placeholder: event.messageType == MessageTypes.Sticker
                    ? null
                    : _buildPlaceholder,
              ),
            ),
          ),
        ),
        if (fileDescription != null && textColor != null)
          SizedBox(
            width: width,
            child: Padding(
              padding: const EdgeInsets.symmetric(
                horizontal: 16,
                vertical: 8,
              ),
              child: Linkify(
                text: fileDescription,
                textScaleFactor: MediaQuery.textScalerOf(context).scale(1),
                style: TextStyle(
                  color: textColor,
                  fontSize:
                      AppConfig.fontSizeFactor * AppConfig.messageFontSize,
                ),
                options: const LinkifyOptions(humanize: false),
                linkStyle: TextStyle(
                  color: linkColor,
                  fontSize:
                      AppConfig.fontSizeFactor * AppConfig.messageFontSize,
                  decoration: TextDecoration.underline,
                  decorationColor: linkColor,
                ),
                onOpen: (url) => UrlLauncher(context, url.url).launchUrl(),
              ),
            ),
          ),
      ],
    );
  }
}