Show animation on story reaction sending.

Telegram/SourceFiles/history/view/reactions/history_view_reactions_selector.cpp

@@ -15,6 +15,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/painter.h"
 #include "history/history_item.h"
 #include "data/data_document.h"
+#include "data/data_document_media.h"
 #include "data/data_session.h"
 #include "data/stickers/data_custom_emoji.h"
 #include "main/main_session.h"
@@ -667,12 +668,30 @@ ChosenReaction Selector::lookupChosen(const Data::ReactionId &id) const {
 	return result;
 }
 
+void Selector::preloadAllRecentsAnimations() {
+	const auto preload = [&](DocumentData *document) {
+		const auto view = document
+			? document->activeMediaView()
+			: nullptr;
+		if (view) {
+			view->checkStickerLarge();
+		}
+	};
+	for (const auto &reaction : _reactions.recent) {
+		if (!reaction.id.custom()) {
+			preload(reaction.centerIcon);
+		}
+		preload(reaction.aroundAnimation);
+	}
+}
+
 void Selector::expand() {
 	if (_expandScheduled) {
 		return;
 	}
 	_expandScheduled = true;
 	_willExpand.fire({});
+	preloadAllRecentsAnimations();
 	const auto parent = parentWidget()->geometry();
 	const auto extents = extentsForShadow();
 	const auto heightLimit = _reactions.customAllowed

Telegram/SourceFiles/history/view/reactions/history_view_reactions_selector.h

@@ -131,6 +131,7 @@ private:
 	void createList();
 	void finishExpand();
 	ChosenReaction lookupChosen(const Data::ReactionId &id) const;
+	void preloadAllRecentsAnimations();
 
 	const style::EmojiPan &_st;
 	const std::shared_ptr<ChatHelpers::Show> _show;

Telegram/SourceFiles/media/stories/media_stories_controller.cpp

@@ -11,11 +11,14 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/power_save_blocker.h"
 #include "base/qt_signal_producer.h"
 #include "chat_helpers/compose/compose_show.h"
+#include "data/stickers/data_custom_emoji.h"
 #include "data/data_changes.h"
 #include "data/data_file_origin.h"
+#include "data/data_message_reactions.h"
 #include "data/data_session.h"
 #include "data/data_stories.h"
 #include "data/data_user.h"
+#include "history/view/reactions/history_view_reactions_strip.h"
 #include "main/main_session.h"
 #include "media/stories/media_stories_caption_full_view.h"
 #include "media/stories/media_stories_delegate.h"
@@ -28,8 +31,11 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "media/stories/media_stories_share.h"
 #include "media/stories/media_stories_view.h"
 #include "media/audio/media_audio.h"
-#include "ui/rp_widget.h"
+#include "ui/effects/emoji_fly_animation.h"
+#include "ui/effects/message_sending_animation_common.h"
+#include "ui/effects/reaction_fly_animation.h"
 #include "ui/layers/box_content.h"
+#include "ui/rp_widget.h"
 #include "styles/style_media_view.h"
 #include "styles/style_widgets.h"
 #include "styles/style_boxes.h" // UserpicButton
@@ -171,8 +177,14 @@ Controller::Controller(not_null<Delegate*> delegate)
 	}, _lifetime);
 
 	_reactions->chosen(
-	) | rpl::start_with_next([=](const Data::ReactionId &id) {
-		_replyArea->sendReaction(id);
+	) | rpl::start_with_next([=](HistoryView::Reactions::ChosenReaction id) {
+		startReactionAnimation(id.id, {
+			.type = Ui::MessageSendingAnimationFrom::Type::Emoji,
+			.globalStartGeometry = id.globalGeometry,
+			.frame = id.icon,
+		});
+		_replyArea->sendReaction(id.id);
+		unfocusReply();
 	}, _lifetime);
 
 	_delegate->storiesLayerShown(
@@ -1062,4 +1074,32 @@ void Controller::updatePowerSaveBlocker(const Player::TrackState &state) {
 		[=] { return _wrap->window()->windowHandle(); });
 }
 
+void Controller::startReactionAnimation(
+		Data::ReactionId id,
+		Ui::MessageSendingAnimationFrom from) {
+	Expects(shown());
+
+	auto args = Ui::ReactionFlyAnimationArgs{
+		.id = id,
+		.flyIcon = from.frame,
+		.flyFrom = _wrap->mapFromGlobal(from.globalStartGeometry),
+		.scaleOutDuration = st::fadeWrapDuration * 2,
+	};
+	_reactionAnimation = std::make_unique<Ui::EmojiFlyAnimation>(
+		_wrap,
+		&shownUser()->owner().reactions(),
+		std::move(args),
+		[=] { _reactionAnimation->repaint(); },
+		Data::CustomEmojiSizeTag::Isolated);
+	const auto layer = _reactionAnimation->layer();
+	_wrap->paintRequest() | rpl::start_with_next([=] {
+		if (!_reactionAnimation->paintBadgeFrame(_wrap.get())) {
+			InvokeQueued(layer, [=] {
+				_reactionAnimation = nullptr;
+				_wrap->update();
+			});
+		}
+	}, layer->lifetime());
+}
+
 } // namespace Media::Stories

Telegram/SourceFiles/media/stories/media_stories_controller.h

@@ -21,6 +21,7 @@ struct FileChosen;
 
 namespace Data {
 struct FileOrigin;
+struct ReactionId;
 } // namespace Data
 
 namespace HistoryView::Reactions {
@@ -29,6 +30,8 @@ class CachedIconFactory;
 
 namespace Ui {
 class RpWidget;
+struct MessageSendingAnimationFrom;
+class EmojiFlyAnimation;
 } // namespace Ui
 
 namespace Main {
@@ -183,6 +186,10 @@ private:
 	void checkMoveByDelta();
 	void loadMoreToList();
 
+	void startReactionAnimation(
+		Data::ReactionId id,
+		Ui::MessageSendingAnimationFrom from);
+
 	const not_null<Delegate*> _delegate;
 
 	rpl::variable<std::optional<Layout>> _layout;
@@ -226,6 +233,7 @@ private:
 	std::unique_ptr<Sibling> _siblingRight;
 
 	std::unique_ptr<base::PowerSaveBlocker> _powerSaveBlocker;
+	std::unique_ptr<Ui::EmojiFlyAnimation> _reactionAnimation;
 
 	Main::Session *_session = nullptr;
 	rpl::lifetime _sessionLifetime;

Telegram/SourceFiles/media/stories/media_stories_reactions.cpp

@@ -143,7 +143,7 @@ void Reactions::create() {
 	_selector->chosen(
 	) | rpl::start_with_next([=](
 			HistoryView::Reactions::ChosenReaction reaction) {
-		_chosen.fire_copy(reaction.id);
+		_chosen.fire_copy(reaction);
 		hide();
 	}, _selector->lifetime());
 

Telegram/SourceFiles/media/stories/media_stories_reactions.h

@@ -15,6 +15,7 @@ struct ReactionId;
 
 namespace HistoryView::Reactions {
 class Selector;
+struct ChosenReaction;
 } // namespace HistoryView::Reactions
 
 namespace Ui {
@@ -30,10 +31,11 @@ public:
 	explicit Reactions(not_null<Controller*> controller);
 	~Reactions();
 
+	using Chosen = HistoryView::Reactions::ChosenReaction;
 	[[nodiscard]] rpl::producer<bool> expandedValue() const {
 		return _expanded.value();
 	}
-	[[nodiscard]] rpl::producer<Data::ReactionId> chosen() const {
+	[[nodiscard]] rpl::producer<Chosen> chosen() const {
 		return _chosen.events();
 	}
 
@@ -54,7 +56,7 @@ private:
 	std::unique_ptr<Ui::RpWidget> _parent;
 	std::unique_ptr<HistoryView::Reactions::Selector> _selector;
 	std::vector<std::unique_ptr<Hiding>> _hiding;
-	rpl::event_stream<Data::ReactionId> _chosen;
+	rpl::event_stream<Chosen> _chosen;
 	Ui::Animations::Simple _showing;
 	rpl::variable<float64> _shownValue;
 	rpl::variable<bool> _expanded;

Telegram/SourceFiles/ui/effects/reaction_fly_animation.cpp

@@ -67,7 +67,8 @@ ReactionFlyAnimation::ReactionFlyAnimation(
 	Data::CustomEmojiSizeTag customSizeTag)
 : _owner(owner)
 , _repaint(std::move(repaint))
-, _flyFrom(args.flyFrom) {
+, _flyFrom(args.flyFrom)
+, _scaleOutDuration(args.scaleOutDuration) {
 	const auto &list = owner->list(::Data::Reactions::Type::All);
 	auto centerIcon = (DocumentData*)nullptr;
 	auto aroundAnimation = (DocumentData*)nullptr;
@@ -135,7 +136,26 @@ QRect ReactionFlyAnimation::paintGetArea(
 		const QColor &colored,
 		QRect clip,
 		crl::time now) const {
-	if (_flyIcon.isNull()) {
+	const auto scale = [&] {
+		const auto rate = _effect ? _effect->frameRate() : 0.;
+		if (!_scaleOutDuration || !rate) {
+			return 1.;
+		}
+		const auto left = _effect->framesCount() - _effect->frameIndex();
+		const auto duration = left * 1000. / rate;
+		return (duration < _scaleOutDuration)
+			? (duration / double(_scaleOutDuration))
+			: 1.;
+	}();
+	if (scale < 1.) {
+		const auto delta = ((1. - scale) / 2.) * target.size();
+		target = QRect(
+			target.topLeft() + QPoint(delta.width(), delta.height()),
+			target.size() * scale);
+	}
+	if (!_valid) {
+		return QRect();
+	} else if (_flyIcon.isNull()) {
 		const auto wide = QRect(
 			target.topLeft() - QPoint(target.width(), target.height()) / 2,
 			target.size() * 2);

Telegram/SourceFiles/ui/effects/reaction_fly_animation.h

@@ -27,6 +27,7 @@ struct ReactionFlyAnimationArgs {
 	::Data::ReactionId id;
 	QImage flyIcon;
 	QRect flyFrom;
+	crl::time scaleOutDuration = 0;
 
 	[[nodiscard]] ReactionFlyAnimationArgs translated(QPoint point) const;
 };
@@ -102,6 +103,7 @@ private:
 	QRect _flyFrom;
 	float64 _centerSizeMultiplier = 0.;
 	int _customSize = 0;
+	crl::time _scaleOutDuration = 0;
 	bool _valid = false;
 
 	mutable Parabolic _cached;