427 lines
14 KiB
Dart
427 lines
14 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'dart:math';
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import 'dart:typed_data';
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import 'package:cached_network_image/cached_network_image.dart';
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import 'package:chewie/chewie.dart';
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import 'package:dio/dio.dart';
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import 'package:esys_flutter_share/esys_flutter_share.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:image_gallery_saver/image_gallery_saver.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:stream_chat/stream_chat.dart';
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import 'package:stream_chat_flutter/src/stream_chat_theme.dart';
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import 'package:stream_chat_flutter/stream_chat_flutter.dart';
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class ImageFooter extends StatefulWidget implements PreferredSizeWidget {
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/// Callback to call when pressing the back button.
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/// By default it calls [Navigator.pop]
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final VoidCallback onBackPressed;
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/// Callback to call when the header is tapped.
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final VoidCallback onTitleTap;
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/// Callback to call when the image is tapped.
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final VoidCallback onImageTap;
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final int currentPage;
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final int totalPages;
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final List<Attachment> mediaAttachments;
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final Message message;
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final List<VideoPackage> videoPackages;
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final ValueChanged<int> mediaSelectedCallBack;
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/// Creates a channel header
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ImageFooter({
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Key key,
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this.onBackPressed,
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this.onTitleTap,
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this.onImageTap,
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this.currentPage = 0,
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this.totalPages = 0,
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this.mediaAttachments,
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this.message,
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this.videoPackages,
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this.mediaSelectedCallBack,
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}) : preferredSize = Size.fromHeight(kToolbarHeight),
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super(key: key);
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@override
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_ImageFooterState createState() => _ImageFooterState();
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@override
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final Size preferredSize;
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}
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class _ImageFooterState extends State<ImageFooter> {
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bool _userSearchMode = false;
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TextEditingController _searchController;
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final TextEditingController _messageController = TextEditingController();
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final FocusNode _messageFocusNode = FocusNode();
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String _channelNameQuery;
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final List<Channel> _selectedChannels = [];
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bool _loading = false;
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Timer _debounce;
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Function modalSetStateCallback;
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void _userNameListener() {
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if (_debounce?.isActive ?? false) _debounce.cancel();
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_debounce = Timer(const Duration(milliseconds: 350), () {
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if (mounted && modalSetStateCallback != null) {
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modalSetStateCallback(() {
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_channelNameQuery = _searchController.text;
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});
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}
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});
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}
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@override
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void initState() {
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super.initState();
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_searchController = TextEditingController()..addListener(_userNameListener);
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_messageFocusNode.addListener(() {
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setState(() {});
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});
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}
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@override
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void dispose() {
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_searchController?.clear();
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_searchController?.removeListener(_userNameListener);
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_searchController?.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return SizedBox.fromSize(
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size: Size(
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MediaQuery.of(context).size.width,
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MediaQuery.of(context).padding.bottom + widget.preferredSize.height,
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),
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child: MediaQuery.removePadding(
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context: context,
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removeTop: true,
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child: BottomAppBar(
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color: StreamChatTheme.of(context).colorTheme.white,
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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IconButton(
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icon: StreamSvgIcon.icon_SHARE(
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size: 24.0,
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color: StreamChatTheme.of(context).colorTheme.black,
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),
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onPressed: () async {
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final attachment =
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widget.mediaAttachments[widget.currentPage];
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var url = attachment.imageUrl ??
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attachment.assetUrl ??
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attachment.thumbUrl;
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var type = attachment.type == 'image'
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? 'jpg'
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: url?.split('?')?.first?.split('.')?.last ?? 'jpg';
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var request = await HttpClient().getUrl(Uri.parse(url));
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var response = await request.close();
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var bytes =
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await consolidateHttpClientResponseBytes(response);
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await Share.file('File', 'image.$type', bytes, 'image/$type');
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},
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),
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InkWell(
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onTap: widget.onTitleTap,
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child: Container(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.center,
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mainAxisAlignment: MainAxisAlignment.center,
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
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Text(
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'${widget.currentPage + 1} of ${widget.totalPages}',
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style:
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StreamChatTheme.of(context).textTheme.headlineBold,
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),
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],
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),
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),
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),
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IconButton(
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icon: StreamSvgIcon.Icon_grid(
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color: StreamChatTheme.of(context).colorTheme.black,
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),
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onPressed: () {
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_buildPhotosModal(context);
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},
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),
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],
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),
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),
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),
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);
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}
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Widget _buildPhotosModal(context) {
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var videoAttachments = widget.mediaAttachments
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.where((element) => element.type == 'video')
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.toList();
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showModalBottomSheet(
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context: context,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(16.0),
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),
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builder: (context) {
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return Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Container(
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decoration: BoxDecoration(
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color: StreamChatTheme.of(context).colorTheme.white,
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borderRadius: BorderRadius.only(
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topRight: Radius.circular(16.0),
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topLeft: Radius.circular(16.0),
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)),
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child: Stack(
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children: [
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Center(
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child: Padding(
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padding: const EdgeInsets.all(16.0),
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child: Text(
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'Photos',
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style:
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StreamChatTheme.of(context).textTheme.headlineBold,
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),
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),
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),
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Align(
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alignment: Alignment.centerRight,
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child: IconButton(
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icon: StreamSvgIcon.close(
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color: StreamChatTheme.of(context).colorTheme.black,
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),
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onPressed: () {
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Navigator.pop(context);
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},
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),
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),
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],
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),
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),
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Container(
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color: StreamChatTheme.of(context).colorTheme.white,
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child: GridView.builder(
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shrinkWrap: true,
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physics: NeverScrollableScrollPhysics(),
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itemBuilder: (context, position) {
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if (widget.mediaAttachments[position].type == 'video') {
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var controllerPackage = widget.videoPackages[
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videoAttachments
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.indexOf(widget.mediaAttachments[position])];
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return InkWell(
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onTap: () {
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widget.mediaSelectedCallBack(position);
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},
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child: FittedBox(
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fit: BoxFit.cover,
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child: Chewie(
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controller: controllerPackage.chewieController,
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),
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),
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);
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} else {
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return InkWell(
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onTap: () {
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widget.mediaSelectedCallBack(position);
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},
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child: Padding(
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padding: const EdgeInsets.all(1.0),
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child: AspectRatio(
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child: CachedNetworkImage(
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imageUrl: widget
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.mediaAttachments[position].imageUrl ??
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widget.mediaAttachments[position].assetUrl ??
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widget.mediaAttachments[position].thumbUrl,
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fit: BoxFit.cover,
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),
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aspectRatio: 1.0,
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),
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),
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);
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}
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},
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itemCount: widget.mediaAttachments.length,
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gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
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crossAxisCount: 3),
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),
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),
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],
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);
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},
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);
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}
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Widget _buildShareTextInputSection(modalSetState) {
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return Align(
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alignment: Alignment.bottomCenter,
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child: BottomAppBar(
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child: Container(
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height: 40.0,
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margin: const EdgeInsets.symmetric(
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vertical: 8,
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horizontal: 8,
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),
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child: _loading
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? Center(
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child: Padding(
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padding: const EdgeInsets.all(8.0),
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child: CircularProgressIndicator(),
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),
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)
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: Row(
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children: [
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Expanded(
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child: TextField(
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controller: _messageController,
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focusNode: _messageFocusNode,
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onChanged: (val) {
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modalSetState(() {});
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},
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onTap: () {
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modalSetState(() {});
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setState(() {});
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},
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decoration: InputDecoration(
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prefixText: ' ',
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hintText: 'Add a comment',
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enabledBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(24.0),
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borderSide: BorderSide(
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(0.16),
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),
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),
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focusedBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(24.0),
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borderSide: BorderSide(
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(0.16),
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)),
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contentPadding: const EdgeInsets.all(0),
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),
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),
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),
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SizedBox(width: 8),
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IconTheme(
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data: StreamChatTheme.of(context)
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.channelTheme
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.messageInputButtonIconTheme,
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child: IconButton(
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onPressed: () async {
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modalSetState(() => _loading = true);
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await sendMessage();
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modalSetState(() => _loading = false);
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},
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splashRadius: 24,
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visualDensity: VisualDensity.compact,
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constraints: BoxConstraints.tightFor(
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height: 24,
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width: 24,
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),
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padding: EdgeInsets.zero,
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icon: Transform.rotate(
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angle: -pi / 2,
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child: StreamSvgIcon.Icon_send_message(
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color: StreamChatTheme.of(context)
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.colorTheme
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.accentBlue,
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),
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),
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),
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),
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],
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),
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),
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),
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);
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}
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/// Sends the current message
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Future sendMessage() async {
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var text = _messageController.text.trim();
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final attachments = widget.message.attachments;
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_messageController.clear();
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for (var channel in _selectedChannels) {
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final message = Message(
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text: text,
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attachments: [attachments[widget.currentPage]],
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);
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await channel.sendMessage(message);
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}
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_selectedChannels.clear();
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Navigator.pop(context);
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}
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Future<void> _saveImage(String url) async {
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var response = await Dio()
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.get(url, options: Options(responseType: ResponseType.bytes));
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final result = await ImageGallerySaver.saveImage(
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Uint8List.fromList(response.data),
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quality: 60,
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name: "${DateTime.now().millisecondsSinceEpoch}");
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return result;
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}
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Future<void> _saveVideo(String url) async {
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var appDocDir = await getTemporaryDirectory();
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var savePath =
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appDocDir.path + "/${DateTime.now().millisecondsSinceEpoch}.mp4";
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await Dio().download(url, savePath);
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final result = await ImageGallerySaver.saveFile(savePath);
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print(result);
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}
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}
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/// Used for clipping textfield prefix icon
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class IconClipper extends CustomClipper<Path> {
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@override
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Path getClip(Size size) {
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var leftX = size.width / 5;
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var rightX = 4 * size.width / 5;
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var topY = size.height / 5;
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var bottomY = 4 * size.height / 5;
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final path = Path();
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path.moveTo(leftX, topY);
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path.lineTo(leftX, bottomY);
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path.lineTo(rightX, bottomY);
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path.lineTo(rightX, topY);
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path.lineTo(leftX, topY);
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path.lineTo(0.0, 0.0);
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path.close();
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return path;
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}
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@override
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bool shouldReclip(CustomClipper oldClipper) {
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return false;
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}
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}
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