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Don't stick to bottom while loading down.

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This commit is contained in:
John Preston 2024-05-03 16:27:43 +04:00
parent f223ae7eee
commit 0f524ac67d
2 changed files with 6 additions and 2 deletions
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6
Telegram/SourceFiles/history/view/history_view_list_widget.cpp
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@ -589,6 +589,7 @@ void ListWidget::refreshRows(const Data::MessagesSlice &old) {
auto destroyingBarElement = _bar.element; auto destroyingBarElement = _bar.element;
auto clearingOverElement = _overElement; auto clearingOverElement = _overElement;
_itemsKnownTillEnd = (_slice.skippedAfter == 0);
_resizePending = true; _resizePending = true;
_items.clear(); _items.clear();
_items.reserve(_slice.ids.size()); _items.reserve(_slice.ids.size());
@ -1107,7 +1108,7 @@ void ListWidget::applyUpdatedScrollState() {
} }
void ListWidget::updateVisibleTopItem() { void ListWidget::updateVisibleTopItem() {
if (_visibleBottom == height()) { if (_itemsKnownTillEnd && _visibleBottom == height()) {
_visibleTopItem = nullptr; _visibleTopItem = nullptr;
} else if (_items.empty()) { } else if (_items.empty()) {
_visibleTopItem = nullptr; _visibleTopItem = nullptr;
@ -2558,7 +2559,8 @@ Element *ListWidget::strictFindItemByY(int y) const {
} }
auto ListWidget::countScrollState() const -> ScrollTopState { auto ListWidget::countScrollState() const -> ScrollTopState {
if (_items.empty() || _visibleBottom == height()) { if (_items.empty()
|| (_itemsKnownTillEnd && _visibleBottom == height())) {
return { Data::MessagePosition(), 0 }; return { Data::MessagePosition(), 0 };
} }
const auto topItem = findItemByY(_visibleTop); const auto topItem = findItemByY(_visibleTop);

2
Telegram/SourceFiles/history/view/history_view_list_widget.h
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@ -727,6 +727,8 @@ private:
int _aroundIndex = -1; int _aroundIndex = -1;
int _idsLimit = kMinimalIdsLimit; int _idsLimit = kMinimalIdsLimit;
Data::MessagesSlice _slice; Data::MessagesSlice _slice;
bool _itemsKnownTillEnd = false;
std::vector<not_null<Element*>> _items; std::vector<not_null<Element*>> _items;
ViewsMap _views, _viewsCapacity; ViewsMap _views, _viewsCapacity;
int _itemsTop = 0; int _itemsTop = 0;