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fix(tc): tapping on a tab should navigate straight to the section #3090

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fix(tc): tapping on a tab should navigate straight to the section #3090

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29 changes: 27 additions & 2 deletions lib/app/features/tokenized_communities/views/pages/tokenized_community_page.dart
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Original file line number Diff line number Diff line change
@@ -1,5 +1,7 @@
// SPDX-License-Identifier: ice License 1.0

import 'dart:async';

import 'package:decimal/decimal.dart';
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
Expand Down Expand Up @@ -114,19 +116,42 @@ class TokenizedCommunityPage extends HookConsumerWidget {
final targetCtx = sectionKeys[index].currentContext;
if (targetCtx == null) return;

double outerOffsetDy = 0;

final nestedState = targetCtx.findAncestorStateOfType<NestedScrollViewState>();
final inner = nestedState?.innerController ?? innerScrollController.value;
if (inner == null || !inner.hasClients) return;

final ro = targetCtx.findRenderObject();
final outer = nestedState?.outerController;
if (outer != null && outer.hasClients) {
outerOffsetDy = outer.position.pixels;
final outerTarget = outer.position.maxScrollExtent - (index == 0 ? 40 : 0);

unawaited(
outer.animateTo(
outerTarget,
duration: const Duration(milliseconds: 300),
curve: Curves.easeInOut,
),
);
if (index == 0) {
return;
}
}

final updatedCtx = sectionKeys[index].currentContext;
if (updatedCtx == null) return;

final ro = updatedCtx.findRenderObject();
if (ro == null) return;

final viewport = RenderAbstractViewport.of(ro);

// Align the section to the TOP of the inner viewport.
final desired = viewport.getOffsetToReveal(ro, 0).offset;
final pos = inner.position;
final target = (desired - 110.0).clamp(pos.minScrollExtent, pos.maxScrollExtent);
final target = (desired - (outerOffsetDy == 0 ? 40 : 160))
.clamp(pos.minScrollExtent, pos.maxScrollExtent);

await inner.animateTo(
target,
Expand Down