Implement custom reactions in stories.

Telegram/SourceFiles/data/data_changes.h

@@ -226,8 +226,9 @@ struct StoryUpdate {
 		NewAdded    = (1U << 2),
 		ViewsAdded  = (1U << 3),
 		MarkRead    = (1U << 4),
+		Reaction    = (1U << 5),
 
-		LastUsedBit = (1U << 4),
+		LastUsedBit = (1U << 5),
 	};
 	using Flags = base::flags<Flag>;
 	friend inline constexpr auto is_flag_type(Flag) { return true; }

Telegram/SourceFiles/data/data_message_reactions.cpp

@@ -381,7 +381,7 @@ void Reactions::preloadImageFor(const ReactionId &id) {
 		loadImage(set, document, !i->centerIcon);
 	} else if (!_waitingForList) {
 		_waitingForList = true;
-		refreshRecent();
+		refreshDefault();
 	}
 }
 

Telegram/SourceFiles/data/data_stories.cpp

@@ -870,6 +870,21 @@ void Stories::activateStealthMode(Fn<void()> done) {
 	}).send();
 }
 
+void Stories::sendReaction(FullStoryId id, Data::ReactionId reaction) {
+	if (const auto maybeStory = lookup(id)) {
+		const auto story = *maybeStory;
+		story->setReactionId(reaction);
+
+		const auto api = &session().api();
+		api->request(MTPstories_SendReaction(
+			MTP_flags(0),
+			story->peer()->asUser()->inputUser,
+			MTP_int(id.story),
+			ReactionToMTP(reaction)
+		)).send();
+	}
+}
+
 std::shared_ptr<HistoryItem> Stories::resolveItem(not_null<Story*> story) {
 	auto &items = _items[story->peer()->id];
 	auto i = items.find(story->id());

Telegram/SourceFiles/data/data_stories.h

@@ -240,6 +240,8 @@ public:
 	[[nodiscard]] rpl::producer<StealthMode> stealthModeValue() const;
 	void activateStealthMode(Fn<void()> done = nullptr);
 
+	void sendReaction(FullStoryId id, Data::ReactionId reaction);
+
 private:
 	struct Saved {
 		StoriesIds ids;

Telegram/SourceFiles/data/data_story.cpp

@@ -376,6 +376,17 @@ const TextWithEntities &Story::caption() const {
 	return unsupported() ? empty : _caption;
 }
 
+Data::ReactionId Story::sentReactionId() const {
+	return _sentReactionId;
+}
+
+void Story::setReactionId(Data::ReactionId id) {
+	if (_sentReactionId != id) {
+		_sentReactionId = id;
+		session().changes().storyUpdated(this, UpdateFlag::Reaction);
+	}
+}
+
 const std::vector<not_null<PeerData*>> &Story::recentViewers() const {
 	return _recentViewers;
 }
@@ -458,6 +469,9 @@ void Story::applyFields(
 		bool initial) {
 	_lastUpdateTime = now;
 
+	const auto reaction = data.vsent_reaction()
+		? Data::ReactionFromMTP(*data.vsent_reaction())
+		: Data::ReactionId();
 	const auto pinned = data.is_pinned();
 	const auto edited = data.is_edited();
 	const auto privacy = data.is_public()
@@ -512,6 +526,7 @@ void Story::applyFields(
 		|| (_views.reactions != reactions)
 		|| (_recentViewers != viewers);
 	const auto locationsChanged = (_locations != locations);
+	const auto reactionChanged = (_sentReactionId != reaction);
 
 	_privacyPublic = (privacy == StoryPrivacy::Public);
 	_privacyCloseFriends = (privacy == StoryPrivacy::CloseFriends);
@@ -536,15 +551,19 @@ void Story::applyFields(
 	if (locationsChanged) {
 		_locations = std::move(locations);
 	}
+	if (reactionChanged) {
+		_sentReactionId = reaction;
+	}
 
 	const auto changed = editedChanged
 		|| captionChanged
 		|| mediaChanged
 		|| locationsChanged;
-	if (!initial && (changed || viewsChanged)) {
+	if (!initial && (changed || viewsChanged || reactionChanged)) {
 		_peer->session().changes().storyUpdated(this, UpdateFlag()
 			| (changed ? UpdateFlag::Edited : UpdateFlag())
-			| (viewsChanged ? UpdateFlag::ViewsAdded : UpdateFlag()));
+			| (viewsChanged ? UpdateFlag::ViewsAdded : UpdateFlag())
+			| (reactionChanged ? UpdateFlag::Reaction : UpdateFlag()));
 	}
 	if (!initial && (captionChanged || mediaChanged)) {
 		if (const auto item = _peer->owner().stories().lookupItem(this)) {

Telegram/SourceFiles/data/data_story.h

@@ -146,6 +146,9 @@ public:
 	void setCaption(TextWithEntities &&caption);
 	[[nodiscard]] const TextWithEntities &caption() const;
 
+	[[nodiscard]] Data::ReactionId sentReactionId() const;
+	void setReactionId(Data::ReactionId id);
+
 	[[nodiscard]] auto recentViewers() const
 		-> const std::vector<not_null<PeerData*>> &;
 	[[nodiscard]] const StoryViews &viewsList() const;
@@ -170,6 +173,7 @@ private:
 
 	const StoryId _id = 0;
 	const not_null<PeerData*> _peer;
+	Data::ReactionId _sentReactionId;
 	StoryMedia _media;
 	TextWithEntities _caption;
 	std::vector<not_null<PeerData*>> _recentViewers;