import 'package:flutter/cupertino.dart'; import 'package:flutter/foundation.dart'; import 'package:flutter/material.dart'; import 'package:cached_network_image/cached_network_image.dart'; import 'package:matrix/matrix.dart'; import 'matrix.dart'; class ContentBanner extends StatelessWidget { final Uri mxContent; final double height; final IconData defaultIcon; final bool loading; final Function onEdit; final Client client; final double opacity; const ContentBanner(this.mxContent, {this.height = 400, this.defaultIcon = CupertinoIcons.group, this.loading = false, this.onEdit, this.client, this.opacity = 0.75, Key key}) : super(key: key); @override Widget build(BuildContext context) { final mediaQuery = MediaQuery.of(context); final bannerSize = (mediaQuery.size.width * mediaQuery.devicePixelRatio).toInt(); final src = mxContent?.getThumbnail( client ?? Matrix.of(context).client, width: bannerSize, height: bannerSize, method: ThumbnailMethod.scale, animated: true, ); return Container( height: height, alignment: Alignment.center, decoration: BoxDecoration( color: Theme.of(context).secondaryHeaderColor, ), child: Stack( children: [ Positioned( left: 0, right: 0, top: 0, bottom: 0, child: Opacity( opacity: opacity, child: (!loading && mxContent != null && mxContent.host.isNotEmpty) ? CachedNetworkImage( imageUrl: src.toString(), height: 300, fit: BoxFit.cover, ) : Icon(defaultIcon, size: 200), ), ), if (onEdit != null) Container( margin: const EdgeInsets.all(8), alignment: Alignment.bottomRight, child: FloatingActionButton( mini: true, onPressed: onEdit, backgroundColor: Theme.of(context).backgroundColor, foregroundColor: Theme.of(context).textTheme.bodyText1.color, child: const Icon(CupertinoIcons.camera), ), ), ], ), ); } }