Added ability to provide custom swipe handler to Info::ContentWidget.

Telegram/SourceFiles/info/info_content_widget.cpp

@@ -410,7 +410,19 @@ not_null<Ui::ScrollArea*> ContentWidget::scroll() const {
 	return _scroll.data();
 }
 
+void ContentWidget::replaceSwipeHandler(
+		Ui::Controls::SwipeHandlerArgs *incompleteArgs) {
+	_swipeHandlerLifetime.destroy();
+	auto args = std::move(*incompleteArgs);
+	args.widget = _innerWrap;
+	args.scroll = _scroll.data();
+	args.onLifetime = &_swipeHandlerLifetime;
+	Ui::Controls::SetupSwipeHandler(std::move(args));
+}
+
 void ContentWidget::setupSwipeHandler(not_null<Ui::RpWidget*> widget) {
+	_swipeHandlerLifetime.destroy();
+
 	auto update = [=](Ui::Controls::SwipeContextData data) {
 		if (data.translation > 0) {
 			if (!_swipeBackData.callback) {
@@ -446,6 +458,7 @@ void ContentWidget::setupSwipeHandler(not_null<Ui::RpWidget*> widget) {
 		.scroll = _scroll.data(),
 		.update = std::move(update),
 		.init = std::move(init),
+		.onLifetime = &_swipeHandlerLifetime,
 	});
 }
 

Telegram/SourceFiles/info/info_content_widget.h

@@ -24,6 +24,9 @@ enum class SharedMediaType : signed char;
 } // namespace Storage
 
 namespace Ui {
+namespace Controls {
+struct SwipeHandlerArgs;
+} // namespace Controls
 class RoundRect;
 class ScrollArea;
 class InputField;
@@ -135,6 +138,8 @@ public:
 	[[nodiscard]] virtual auto desiredBottomShadowVisibility()
 		-> rpl::producer<bool>;
 
+	void replaceSwipeHandler(Ui::Controls::SwipeHandlerArgs *incompleteArgs);
+
 protected:
 	template <typename Widget>
 	Widget *setInnerWidget(object_ptr<Widget> inner) {
@@ -196,6 +201,7 @@ private:
 	style::margins _paintPadding;
 
 	Ui::Controls::SwipeBackResult _swipeBackData;
+	rpl::lifetime _swipeHandlerLifetime;
 
 };
 

Telegram/SourceFiles/info/info_wrap_widget.cpp

@@ -1059,6 +1059,11 @@ bool WrapWidget::willHaveBackButton(
 	return (wrap() == Wrap::Narrow) || willHaveStack;
 }
 
+void WrapWidget::replaceSwipeHandler(
+		Ui::Controls::SwipeHandlerArgs *incompleteArgs) {
+	_content->replaceSwipeHandler(std::move(incompleteArgs));
+}
+
 WrapWidget::~WrapWidget() = default;
 
 } // namespace Info

Telegram/SourceFiles/info/info_wrap_widget.h

@@ -15,6 +15,9 @@ enum class SharedMediaType : signed char;
 } // namespace Storage
 
 namespace Ui {
+namespace Controls {
+struct SwipeHandlerArgs;
+} // namespace Controls
 class FadeShadow;
 class PlainShadow;
 class PopupMenu;
@@ -140,6 +143,8 @@ public:
 		return _removeRequests.events();
 	}
 
+	void replaceSwipeHandler(Ui::Controls::SwipeHandlerArgs *incompleteArgs);
+
 	~WrapWidget();
 
 protected: