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feat: Converted message_search_list_view.dart

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This commit is contained in:
Deven Joshi
2021-01-25 21:17:17 +05:30
parent a79f551332
commit 016cff2c29
1 changed files with 163 additions and 208 deletions
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packages/flutter_widgets/lib/src/message_search_list_view.dart
+163 -208
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@@ -119,23 +119,115 @@ class MessageSearchListView extends StatefulWidget {
}
class _MessageSearchListViewState extends State<MessageSearchListView> {
@override
void initState() {
super.initState();
final messageSearchBloc = MessageSearchBloc.of(context);
messageSearchBloc.search(
filter: widget.filters,
sort: widget.sortOptions,
query: widget.messageQuery,
pagination: widget.paginationParams,
messageFilter: widget.messageFilters,
);
}
MessageSearchListController _messageSearchListController =
MessageSearchListController();
@override
Widget build(BuildContext context) {
final messageSearchBloc = MessageSearchBloc.of(context);
return _buildListView(messageSearchBloc);
return MessageSearchListCore(
filters: widget.filters,
sortOptions: widget.sortOptions,
messageQuery: widget.messageQuery,
paginationParams: widget.paginationParams,
messageFilters: widget.messageFilters,
messageSearchListController: _messageSearchListController,
emptyBuilder: (context) {
if (widget.emptyBuilder != null) {
return widget.emptyBuilder(context, widget.messageQuery);
}
return LayoutBuilder(
builder: (context, viewportConstraints) {
return SingleChildScrollView(
physics: AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: viewportConstraints.maxHeight,
),
child: Center(
child: Text('There are no messages currently'),
),
),
);
},
);
},
errorBuilder: (error) {
if (error is Error) {
print((error).stackTrace);
}
if (widget.errorBuilder != null) {
return widget.errorBuilder(error);
}
var message = error.toString();
if (error is DioError) {
final dioError = error as DioError;
if (dioError.type == DioErrorType.RESPONSE) {
message = dioError.message;
} else {
message = 'Check your connection and retry';
}
}
return InfoTile(
showMessage: widget.showErrorTile,
tileAnchor: Alignment.topCenter,
childAnchor: Alignment.topCenter,
message: 'An error occurred.',
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text.rich(
TextSpan(
children: [
WidgetSpan(
child: Padding(
padding: const EdgeInsets.only(right: 2.0),
child: Icon(Icons.error_outline),
),
),
TextSpan(text: 'Error loading messages'),
],
),
style: Theme.of(context).textTheme.headline6,
),
Padding(
padding: const EdgeInsets.only(top: 16.0),
child: Text(message),
),
RaisedButton(
onPressed: () {
_messageSearchListController.loadData();
},
child: Text('Retry'),
),
],
),
),
);
},
loadingBuilder: (context) {
return LayoutBuilder(
builder: (context, viewportConstraints) {
return SingleChildScrollView(
physics: AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: viewportConstraints.maxHeight,
),
child: Center(
child: CircularProgressIndicator(),
),
),
);
},
);
},
childBuilder: (list) {
return _buildListView(list);
},
);
}
Widget _separatorBuilder(BuildContext context, int index) {
@@ -156,8 +248,9 @@ class _MessageSearchListViewState extends State<MessageSearchListView> {
);
}
Widget _buildQueryProgressIndicator(
context, MessageSearchBlocState messageSearchBloc) {
Widget _buildQueryProgressIndicator(context) {
MessageSearchBlocState messageSearchBloc = MessageSearchBloc.of(context);
return StreamBuilder<bool>(
stream: messageSearchBloc.queryMessagesLoading,
initialData: false,
@@ -186,204 +279,66 @@ class _MessageSearchListViewState extends State<MessageSearchListView> {
});
}
Widget _buildListView(MessageSearchBlocState messageSearchBloc) {
return StreamBuilder<List<GetMessageResponse>>(
stream: messageSearchBloc.messagesStream,
builder: (context, snapshot) {
if (snapshot.hasError) {
if (snapshot.error is Error) {
print((snapshot.error as Error).stackTrace);
}
Widget _buildListView(List<GetMessageResponse> data) {
final items = data;
if (widget.errorBuilder != null) {
return widget.errorBuilder(snapshot.error);
}
var message = snapshot.error.toString();
if (snapshot.error is DioError) {
final dioError = snapshot.error as DioError;
if (dioError.type == DioErrorType.RESPONSE) {
message = dioError.message;
} else {
message = 'Check your connection and retry';
}
}
return InfoTile(
showMessage: widget.showErrorTile,
tileAnchor: Alignment.topCenter,
childAnchor: Alignment.topCenter,
message: 'An error occurred.',
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text.rich(
TextSpan(
children: [
WidgetSpan(
child: Padding(
padding: const EdgeInsets.only(right: 2.0),
child: Icon(Icons.error_outline),
),
),
TextSpan(text: 'Error loading messages'),
],
),
style: Theme.of(context).textTheme.headline6,
),
Padding(
padding: const EdgeInsets.only(top: 16.0),
child: Text(message),
),
RaisedButton(
onPressed: () {
messageSearchBloc.search(
filter: widget.filters,
sort: widget.sortOptions,
query: widget.messageQuery,
pagination: widget.paginationParams,
messageFilter: widget.messageFilters,
);
},
child: Text('Retry'),
),
],
),
),
);
Widget child = ListView.separated(
physics: AlwaysScrollableScrollPhysics(),
itemCount: items.isNotEmpty ? items.length + 1 : items.length,
separatorBuilder: (_, index) {
if (widget.separatorBuilder != null) {
return widget.separatorBuilder(context, index);
}
if (!snapshot.hasData) {
return LayoutBuilder(
builder: (context, viewportConstraints) {
return SingleChildScrollView(
physics: AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: viewportConstraints.maxHeight,
),
child: Center(
child: CircularProgressIndicator(),
),
),
);
},
);
return _separatorBuilder(context, index);
},
itemBuilder: (context, index) {
if (index < items.length) {
return _listItemBuilder(context, items[index]);
}
final items = snapshot.data;
if (items.isEmpty) {
if (widget.emptyBuilder != null) {
return widget.emptyBuilder(context, widget.messageQuery);
}
return LayoutBuilder(
builder: (context, viewportConstraints) {
return SingleChildScrollView(
physics: AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: viewportConstraints.maxHeight,
),
child: Center(
child: Text('There are no messages currently'),
),
),
);
},
);
}
Widget child = ListView.separated(
physics: AlwaysScrollableScrollPhysics(),
itemCount: items.isNotEmpty ? items.length + 1 : items.length,
separatorBuilder: (_, index) {
if (widget.separatorBuilder != null) {
return widget.separatorBuilder(context, index);
}
return _separatorBuilder(context, index);
},
itemBuilder: (context, index) {
if (index < items.length) {
return _listItemBuilder(context, items[index]);
}
return _buildQueryProgressIndicator(context, messageSearchBloc);
},
);
if (widget.pullToRefresh) {
child = RefreshIndicator(
onRefresh: () async => messageSearchBloc.search(
filter: widget.filters,
sort: widget.sortOptions,
query: widget.messageQuery,
pagination: widget.paginationParams,
messageFilter: widget.messageFilters,
),
child: child,
);
}
child = LazyLoadScrollView(
onEndOfPage: () => messageSearchBloc.loadMore(
filter: widget.filters,
sort: widget.sortOptions,
pagination: widget.paginationParams.copyWith(
offset: messageSearchBloc.messageResponses?.length ?? 0,
),
query: widget.messageQuery,
messageFilter: widget.messageFilters,
),
child: child,
);
if (widget.showResultCount) {
child = Column(
children: [
Container(
width: double.maxFinite,
decoration: BoxDecoration(
gradient: StreamChatTheme.of(context).colorTheme.bgGradient,
),
child: Padding(
padding: const EdgeInsets.symmetric(
vertical: 8,
horizontal: 8,
),
child: Text(
'${items.length} results',
style: TextStyle(
color: StreamChatTheme.of(context).colorTheme.grey,
),
),
),
),
Expanded(child: child),
],
);
}
return child;
return _buildQueryProgressIndicator(context);
},
);
}
@override
void didUpdateWidget(MessageSearchListView oldWidget) {
super.didUpdateWidget(oldWidget);
if (widget.filters?.toString() != oldWidget.filters?.toString() ||
jsonEncode(widget.sortOptions) != jsonEncode(oldWidget.sortOptions) ||
widget.paginationParams?.toJson()?.toString() !=
oldWidget.paginationParams?.toJson()?.toString() ||
widget.messageQuery?.toString() != oldWidget.messageQuery?.toString() ||
widget.messageFilters?.toString() !=
oldWidget.messageFilters?.toString()) {
final messageSearchBloc = MessageSearchBloc.of(context);
messageSearchBloc.search(
filter: widget.filters,
sort: widget.sortOptions,
query: widget.messageQuery,
pagination: widget.paginationParams,
messageFilter: widget.messageFilters,
if (widget.pullToRefresh) {
child = RefreshIndicator(
onRefresh: () async {
_messageSearchListController.loadData();
},
child: child,
);
}
child = LazyLoadScrollView(
onEndOfPage: () async {
return _messageSearchListController.paginateData();
},
child: child,
);
if (widget.showResultCount) {
child = Column(
children: [
Container(
width: double.maxFinite,
decoration: BoxDecoration(
gradient: StreamChatTheme.of(context).colorTheme.bgGradient,
),
child: Padding(
padding: const EdgeInsets.symmetric(
vertical: 8,
horizontal: 8,
),
child: Text(
'${items.length} results',
style: TextStyle(
color: StreamChatTheme.of(context).colorTheme.grey,
),
),
),
),
Expanded(child: child),
],
);
}
return child;
}
}