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Code Issues Releases Wiki Activity

web/github_dataviz: Migrate to null safety (#919)

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This commit is contained in:
Brett Morgan
2021-10-08 19:43:25 +11:00
committed by GitHub
parent 8932e60976
commit 83d3ea99f0
12 changed files with 183 additions and 144 deletions
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98
web/github_dataviz/lib/main.dart
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@@ -19,21 +19,23 @@ import 'package:github_dataviz/mathutils.dart';
import 'package:github_dataviz/timeline.dart';
class MainLayout extends StatefulWidget {
const MainLayout({Key? key}) : super(key: key);
@override
_MainLayoutState createState() => _MainLayoutState();
}
class _MainLayoutState extends State<MainLayout> with TickerProviderStateMixin {
AnimationController _animation;
List<UserContribution> contributions;
List<StatForWeek> starsByWeek;
List<StatForWeek> forksByWeek;
List<StatForWeek> pushesByWeek;
List<StatForWeek> issueCommentsByWeek;
List<StatForWeek> pullRequestActivityByWeek;
List<WeekLabel> weekLabels;
AnimationController? _animation;
List<UserContribution>? contributions;
List<StatForWeek>? starsByWeek;
List<StatForWeek>? forksByWeek;
List<StatForWeek>? pushesByWeek;
List<StatForWeek>? issueCommentsByWeek;
List<StatForWeek>? pullRequestActivityByWeek;
late List<WeekLabel> weekLabels;
static final double earlyInterpolatorFraction = 0.8;
static const double earlyInterpolatorFraction = 0.8;
static final EarlyInterpolator interpolator =
EarlyInterpolator(earlyInterpolatorFraction);
double animationValue = 1.0;
@@ -47,14 +49,14 @@ class _MainLayoutState extends State<MainLayout> with TickerProviderStateMixin {
createAnimation(0);
weekLabels = <WeekLabel>[];
weekLabels.add(WeekLabel.forDate(DateTime(2019, 2, 26), "v1.2"));
weekLabels.add(WeekLabel.forDate(DateTime(2018, 12, 4), "v1.0"));
weekLabels.add(WeekLabel.forDate(DateTime(2019, 2, 26), 'v1.2'));
weekLabels.add(WeekLabel.forDate(DateTime(2018, 12, 4), 'v1.0'));
// weekLabels.add(WeekLabel.forDate(new DateTime(2018, 9, 19), "Preview 2"));
weekLabels.add(WeekLabel.forDate(DateTime(2018, 6, 21), "Preview 1"));
weekLabels.add(WeekLabel.forDate(DateTime(2018, 6, 21), 'Preview 1'));
// weekLabels.add(WeekLabel.forDate(new DateTime(2018, 5, 7), "Beta 3"));
weekLabels.add(WeekLabel.forDate(DateTime(2018, 2, 27), "Beta 1"));
weekLabels.add(WeekLabel.forDate(DateTime(2017, 5, 1), "Alpha"));
weekLabels.add(WeekLabel(48, "Repo Made Public"));
weekLabels.add(WeekLabel.forDate(DateTime(2018, 2, 27), 'Beta 1'));
weekLabels.add(WeekLabel.forDate(DateTime(2017, 5, 1), 'Alpha'));
weekLabels.add(WeekLabel(48, 'Repo Made Public'));
loadGitHubData();
}
@@ -66,10 +68,10 @@ class _MainLayoutState extends State<MainLayout> with TickerProviderStateMixin {
duration: const Duration(milliseconds: 14400),
vsync: this,
)..repeat();
_animation.addListener(() {
_animation!.addListener(() {
setState(() {
if (!timelineOverride) {
animationValue = _animation.value;
animationValue = _animation!.value;
interpolatedAnimationValue = interpolator.get(animationValue);
}
});
@@ -82,7 +84,7 @@ class _MainLayoutState extends State<MainLayout> with TickerProviderStateMixin {
List<DataSeries> dataToPlot = [];
if (contributions != null) {
List<int> series = [];
for (UserContribution userContrib in contributions) {
for (UserContribution userContrib in contributions!) {
for (int i = 0; i < userContrib.contributions.length; i++) {
ContributionData data = userContrib.contributions[i];
if (series.length > i) {
@@ -92,32 +94,32 @@ class _MainLayoutState extends State<MainLayout> with TickerProviderStateMixin {
}
}
}
dataToPlot.add(DataSeries("Added Lines", series));
dataToPlot.add(DataSeries('Added Lines', series));
}
if (starsByWeek != null) {
dataToPlot
.add(DataSeries("Stars", starsByWeek.map((e) => e.stat).toList()));
.add(DataSeries('Stars', starsByWeek!.map((e) => e.stat).toList()));
}
if (forksByWeek != null) {
dataToPlot
.add(DataSeries("Forks", forksByWeek.map((e) => e.stat).toList()));
.add(DataSeries('Forks', forksByWeek!.map((e) => e.stat).toList()));
}
if (pushesByWeek != null) {
dataToPlot
.add(DataSeries("Pushes", pushesByWeek.map((e) => e.stat).toList()));
.add(DataSeries('Pushes', pushesByWeek!.map((e) => e.stat).toList()));
}
if (issueCommentsByWeek != null) {
dataToPlot.add(DataSeries(
"Issue Comments", issueCommentsByWeek.map((e) => e.stat).toList()));
'Issue Comments', issueCommentsByWeek!.map((e) => e.stat).toList()));
}
if (pullRequestActivityByWeek != null) {
dataToPlot.add(DataSeries("Pull Request Activity",
pullRequestActivityByWeek.map((e) => e.stat).toList()));
dataToPlot.add(DataSeries('Pull Request Activity',
pullRequestActivityByWeek!.map((e) => e.stat).toList()));
}
LayeredChart layeredChart =
@@ -126,15 +128,13 @@ class _MainLayoutState extends State<MainLayout> with TickerProviderStateMixin {
const double timelinePadding = 60.0;
var timeline = Timeline(
numWeeks: dataToPlot != null && dataToPlot.length > 0
? dataToPlot.last.series.length
: 0,
numWeeks: dataToPlot.isNotEmpty ? dataToPlot.last.series.length : 0,
animationValue: interpolatedAnimationValue,
weekLabels: weekLabels,
mouseDownCallback: (double xFraction) {
setState(() {
timelineOverride = true;
_animation.stop();
_animation?.stop();
interpolatedAnimationValue = xFraction;
});
},
@@ -176,53 +176,55 @@ class _MainLayoutState extends State<MainLayout> with TickerProviderStateMixin {
@override
void dispose() {
_animation.dispose();
_animation?.dispose();
super.dispose();
}
Future loadGitHubData() async {
String contributorsJsonStr =
(await http.get("assets/github_data/contributors.json")).body;
(await http.get(Uri.parse('assets/github_data/contributors.json')))
.body;
List jsonObjs = jsonDecode(contributorsJsonStr) as List;
List<UserContribution> contributionList =
jsonObjs.map((e) => UserContribution.fromJson(e)).toList();
print(
"Loaded ${contributionList.length} code contributions to /flutter/flutter repo.");
'Loaded ${contributionList.length} code contributions to /flutter/flutter repo.');
int numWeeksTotal = contributionList[0].contributions.length;
String starsByWeekStr =
(await http.get("assets/github_data/stars.tsv")).body;
(await http.get(Uri.parse('assets/github_data/stars.tsv'))).body;
List<StatForWeek> starsByWeekLoaded =
summarizeWeeksFromTSV(starsByWeekStr, numWeeksTotal);
String forksByWeekStr =
(await http.get("assets/github_data/forks.tsv")).body;
(await http.get(Uri.parse('assets/github_data/forks.tsv'))).body;
List<StatForWeek> forksByWeekLoaded =
summarizeWeeksFromTSV(forksByWeekStr, numWeeksTotal);
String commitsByWeekStr =
(await http.get("assets/github_data/commits.tsv")).body;
(await http.get(Uri.parse('assets/github_data/commits.tsv'))).body;
List<StatForWeek> commitsByWeekLoaded =
summarizeWeeksFromTSV(commitsByWeekStr, numWeeksTotal);
String commentsByWeekStr =
(await http.get("assets/github_data/comments.tsv")).body;
(await http.get(Uri.parse('assets/github_data/comments.tsv'))).body;
List<StatForWeek> commentsByWeekLoaded =
summarizeWeeksFromTSV(commentsByWeekStr, numWeeksTotal);
String pullRequestActivityByWeekStr =
(await http.get("assets/github_data/pull_requests.tsv")).body;
(await http.get(Uri.parse('assets/github_data/pull_requests.tsv')))
.body;
List<StatForWeek> pullRequestActivityByWeekLoaded =
summarizeWeeksFromTSV(pullRequestActivityByWeekStr, numWeeksTotal);
setState(() {
this.contributions = contributionList;
this.starsByWeek = starsByWeekLoaded;
this.forksByWeek = forksByWeekLoaded;
this.pushesByWeek = commitsByWeekLoaded;
this.issueCommentsByWeek = commentsByWeekLoaded;
this.pullRequestActivityByWeek = pullRequestActivityByWeekLoaded;
contributions = contributionList;
starsByWeek = starsByWeekLoaded;
forksByWeek = forksByWeekLoaded;
pushesByWeek = commitsByWeekLoaded;
issueCommentsByWeek = commentsByWeekLoaded;
pullRequestActivityByWeek = pullRequestActivityByWeekLoaded;
});
}
@@ -230,18 +232,18 @@ class _MainLayoutState extends State<MainLayout> with TickerProviderStateMixin {
String statByWeekStr, int numWeeksTotal) {
List<StatForWeek> loadedStats = [];
HashMap<int, StatForWeek> statMap = HashMap();
statByWeekStr.split("\n").forEach((s) {
List<String> split = s.split("\t");
statByWeekStr.split('\n').forEach((s) {
List<String> split = s.split('\t');
if (split.length == 2) {
int weekNum = int.parse(split[0]);
statMap[weekNum] = StatForWeek(weekNum, int.parse(split[1]));
}
});
print("Loaded ${statMap.length} weeks.");
print('Loaded ${statMap.length} weeks.');
// Convert into a list by week, but fill in empty weeks with 0
for (int i = 0; i < numWeeksTotal; i++) {
StatForWeek starsForWeek = statMap[i];
StatForWeek? starsForWeek = statMap[i];
if (starsForWeek == null) {
loadedStats.add(StatForWeek(i, 0));
} else {
@@ -253,5 +255,5 @@ class _MainLayoutState extends State<MainLayout> with TickerProviderStateMixin {
}
void main() {
runApp(Center(child: MainLayout()));
runApp(const Center(child: MainLayout()));
}