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Added proper visibility forwarding to flexible scroll content widget.

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This commit is contained in:
23rd
2025-11-16 12:51:53 +03:00
parent aadc81279a
commit b2dcbebb5b
1 changed files with 26 additions and 2 deletions
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Telegram/SourceFiles/info/info_content_widget.h
+26 -2
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@@ -161,7 +161,30 @@ protected:
FlexibleData &flexibleScroll,
Fn<void(Ui::RpWidget*)> customSetup = nullptr) {
if (inner->hasFlexibleTopBar()) {
auto filler = setInnerWidget(object_ptr<Ui::RpWidget>(this));
class Filler final : public Ui::RpWidget {
public:
using Ui::RpWidget::RpWidget;
void setTargetWidget(Ui::RpWidget *widget) {
_targetWidget = widget;
}
protected:
void visibleTopBottomUpdated(
int visibleTop,
int visibleBottom) override {
if (_targetWidget) {
_targetWidget->setVisibleTopBottom(
visibleTop,
visibleBottom);
}
}
private:
Ui::RpWidget *_targetWidget = nullptr;
};
auto filler = setInnerWidget(object_ptr<Filler>(this));
filler->resize(1, 1);
flexibleScroll.contentHeightValue.events(
@@ -181,9 +204,10 @@ protected:
// ScrollArea -> PaddingWrap -> RpWidget.
inner->setParent(filler->parentWidget()->parentWidget());
inner->raise();
filler->setTargetWidget(inner.get());
using InnerPtr = base::unique_qptr<Widget>;
auto owner = filler->lifetime().make_state<InnerPtr>(
auto owner = filler->lifetime().template make_state<InnerPtr>(
std::move(inner.release()));
return owner->get();
} else {