git-touch-android-ios-app/lib/screens/pull_request.dart

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import 'package:flutter/material.dart';
import 'package:flutter/cupertino.dart';
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import '../providers/settings.dart';
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import '../utils/utils.dart';
import '../scaffolds/long_list.dart';
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import '../widgets/timeline_item.dart';
import '../widgets/comment_item.dart';
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class PullRequestScreen extends StatefulWidget {
final int number;
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final String owner;
final String name;
PullRequestScreen({
@required this.number,
@required this.owner,
@required this.name,
});
PullRequestScreen.fromFullName(
{@required this.number, @required String fullName})
: this.owner = fullName.split('/')[0],
this.name = fullName.split('/')[1];
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@override
_PullRequestScreenState createState() => _PullRequestScreenState();
}
var commonChunk = '''
$graghqlChunk
... on ReviewRequestedEvent {
createdAt
actor {
login
}
requestedReviewer {
... on User {
login
}
}
}
... on PullRequestReview {
createdAt
state
author {
login
}
}
... on MergedEvent {
createdAt
mergeRefName
actor {
login
}
commit {
oid
url
}
}
... on HeadRefDeletedEvent {
createdAt
actor {
login
}
headRefName
}
''';
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class _PullRequestScreenState extends State<PullRequestScreen> {
get owner => widget.owner;
get id => widget.number;
get name => widget.name;
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Future queryPullRequest() async {
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var data = await SettingsProvider.of(context).query('''
{
repository(owner: "$owner", name: "$name") {
pullRequest(number: $id) {
$graphqlChunk1
merged
permalink
additions
deletions
commits {
totalCount
}
timeline(first: $pageSize) {
totalCount
pageInfo {
endCursor
}
nodes {
$commonChunk
}
}
}
}
}
''');
return data['repository']['pullRequest'];
}
Future queryMore(String cursor) async {
var data = await SettingsProvider.of(context).query('''
{
repository(owner: "$owner", name: "$name") {
pullRequest(number: $id) {
timeline(first: $pageSize, after: $cursor) {
totalCount
pageInfo {
endCursor
}
nodes {
$commonChunk
}
}
}
}
}
''');
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return data['repository']['pullRequest'];
}
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Future<List> queryTrailing() async {
var data = await SettingsProvider.of(context).query('''
{
repository(owner: "$owner", name: "$name") {
pullRequest(number: $id) {
timeline(last: $pageSize) {
nodes {
$commonChunk
}
}
}
}
}
''');
return data['repository']['pullRequest']['timeline']['nodes'];
}
Widget _buildBadge(payload) {
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bool merged = payload['merged'];
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Color bgColor = merged ? Palette.purple : Palette.green;
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IconData iconData = merged ? Octicons.git_merge : Octicons.git_pull_request;
String text = merged ? 'Merged' : 'Open';
return Container(
decoration: BoxDecoration(
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color: bgColor,
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borderRadius: BorderRadius.all(Radius.circular(4)),
),
padding: EdgeInsets.all(6),
child: Row(
children: <Widget>[
Icon(iconData, color: Colors.white, size: 15),
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Text(
text,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.w600,
),
),
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],
),
);
}
get _fullName => widget.owner + '/' + widget.name;
@override
Widget build(BuildContext context) {
return LongListScaffold(
title: Text(_fullName + ' #' + widget.number.toString()),
headerBuilder: (payload) {
return Column(children: <Widget>[
Container(
// padding: EdgeInsets.all(10),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
_buildBadge(payload),
Text(
payload['title'],
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
height: 1.2,
),
),
CommentItem(payload),
],
),
)
]);
},
itemBuilder: (itemPayload) => TimelineItem(itemPayload),
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onRefresh: () async {
var res = await queryPullRequest();
int totalCount = res['timeline']['totalCount'];
String cursor = res['timeline']['pageInfo']['endCursor'];
List leadingItems = res['timeline']['nodes'];
var payload = LongListPayload(
header: res,
totalCount: totalCount,
cursor: cursor,
leadingItems: leadingItems,
trailingItems: [],
);
if (totalCount > 2 * pageSize) {
payload.trailingItems = await queryTrailing();
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}
return payload;
},
onLoadMore: (String _cursor) async {
var res = await queryMore(_cursor);
int totalCount = res['timeline']['totalCount'];
String cursor = res['timeline']['pageInfo']['endCursor'];
List leadingItems = res['timeline']['nodes'];
var payload = LongListPayload(
totalCount: totalCount,
cursor: cursor,
leadingItems: leadingItems,
);
return payload;
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},
);
}
}