Load gift themes while scrolling.

john-preston · john-preston · commit 1dc70d5a8de0 · 2025-08-31T20:53:12.000+04:00
diff --git a/Telegram/SourceFiles/ui/chat/choose_theme_controller.cpp b/Telegram/SourceFiles/ui/chat/choose_theme_controller.cpp
@@ -560,6 +560,10 @@ void ChooseThemeController::updateInnerLeft(int now) {
 		? (skip / 2)
 		: std::clamp(now, skip, 0);
 	_inner->move(clamped, 0);
+	const auto visibleTill = -clamped + _content->width();
+	if (_giftsFinishAt - visibleTill < _content->width()) {
+		_peer->owner().cloudThemes().myGiftThemesLoadMore();
+	}
 }
 
 void ChooseThemeController::close() {
@@ -734,13 +738,15 @@ void ChooseThemeController::fill(
 			x += single.width() + skip;
 		};
 
+		_giftsFinishAt = 0;
 		if (const auto now = cloudThemes->themeForToken(initial)) {
 			push(*now, initial);
 		}
 		for (const auto &token : cloudThemes->myGiftThemesTokens()) {
 			if (const auto found = cloudThemes->themeForToken(token)) {
 				if (token != initial) {
 					push(*found, token);
+					_giftsFinishAt = x;
 				}
 			}
 		}
diff --git a/Telegram/SourceFiles/ui/chat/choose_theme_controller.h b/Telegram/SourceFiles/ui/chat/choose_theme_controller.h
@@ -73,6 +73,7 @@ class ChooseThemeController final {
 	std::optional<QPoint> _pressPosition;
 	std::optional<QPoint> _dragStartPosition;
 	int _dragStartInnerLeft = 0;
+	int _giftsFinishAt = 0;
 	bool _initialInnerLeftApplied = false;
 
 	rpl::variable<bool> _shouldBeShown = false;

Original file line number	Diff line number	Diff line change
`@@ -560,6 +560,10 @@ void ChooseThemeController::updateInnerLeft(int now) {`
`560`	`560`	`? (skip / 2)`
`561`	`561`	`: std::clamp(now, skip, 0);`
`562`	`562`	`_inner->move(clamped, 0);`
	`563`	`+ const auto visibleTill = -clamped + _content->width();`
	`564`	`+ if (_giftsFinishAt - visibleTill < _content->width()) {`
	`565`	`+ _peer->owner().cloudThemes().myGiftThemesLoadMore();`
	`566`	`+ }`
`563`	`567`	`}`
`564`	`568`
`565`	`569`	`void ChooseThemeController::close() {`
`@@ -734,13 +738,15 @@ void ChooseThemeController::fill(`
`734`	`738`	`x += single.width() + skip;`
`735`	`739`	`};`
`736`	`740`
	`741`	`+ _giftsFinishAt = 0;`
`737`	`742`	`if (const auto now = cloudThemes->themeForToken(initial)) {`
`738`	`743`	`push(*now, initial);`
`739`	`744`	`}`
`740`	`745`	`for (const auto &token : cloudThemes->myGiftThemesTokens()) {`
`741`	`746`	`if (const auto found = cloudThemes->themeForToken(token)) {`
`742`	`747`	`if (token != initial) {`
`743`	`748`	`push(*found, token);`
	`749`	`+ _giftsFinishAt = x;`
`744`	`750`	`}`
`745`	`751`	`}`
`746`	`752`	`}`