Add messageAnimatedEmoji.

td/generate/scheme/td_api.tl

@@ -1707,6 +1707,9 @@ messageVenue venue:venue = MessageContent;
 //@description A message with a user contact @contact The contact description
 messageContact contact:contact = MessageContent;
 
+//@description A message with an animated emoji @sticker The animated sticker with the emoji animation @emoji The corresponding emoji
+messageAnimatedEmoji sticker:sticker emoji:string = MessageContent;
+
 //@description A dice message. The dice value is randomly generated by the server
 //@initial_state The animated stickers with the initial dice animation; may be null if unknown. updateMessageContent will be sent when the sticker became known
 //@final_state The animated stickers with the final dice animation; may be null if unknown. updateMessageContent will be sent when the sticker became known

td/telegram/StickersManager.cpp

@@ -1360,6 +1360,7 @@ void StickersManager::load_special_sticker_set_by_type(const SpecialStickerSetTy
 }
 
 void StickersManager::load_special_sticker_set(SpecialStickerSet &sticker_set) {
+  CHECK(!td_->auth_manager_->is_bot());
   if (sticker_set.is_being_loaded_) {
     return;
   }
@@ -1407,23 +1408,17 @@ void StickersManager::on_load_special_sticker_set(const SpecialStickerSetType &t
   CHECK(sticker_set->was_loaded);
 
   if (type.type_ == SpecialStickerSetType::animated_emoji()) {
-    for (auto sticker_it : sticker_set->sticker_emojis_map_) {
-      for (auto &emoji : sticker_it.second) {
-        auto it = emoji_messages_.find(emoji);
-        if (it == emoji_messages_.end()) {
-          continue;
-        }
-
-        vector<FullMessageId> full_message_ids;
-        for (auto full_message_id : it->second) {
+    vector<FullMessageId> full_message_ids;
+    for (const auto &it : emoji_messages_) {
+      if (get_animated_emoji_sticker(sticker_set, it.first).first.is_valid()) {
+        for (auto full_message_id : it.second) {
           full_message_ids.push_back(full_message_id);
         }
-        CHECK(!full_message_ids.empty());
-        for (auto full_message_id : full_message_ids) {
-          td_->messages_manager_->on_external_update_message_content(full_message_id);
-        }
       }
     }
+    for (auto full_message_id : full_message_ids) {
+      td_->messages_manager_->on_external_update_message_content(full_message_id);
+    }
     return;
   }
 
@@ -1916,8 +1911,64 @@ tl_object_ptr<td_api::stickerSetInfo> StickersManager::get_sticker_set_info_obje
       std::move(stickers));
 }
 
+std::pair<FileId, int> StickersManager::get_animated_emoji_sticker(const StickerSet *sticker_set, const string &emoji) {
+  auto emoji_without_modifiers = remove_emoji_modifiers(emoji).str();
+  auto it = sticker_set->emoji_stickers_map_.find(emoji_without_modifiers);
+  if (it == sticker_set->emoji_stickers_map_.end()) {
+    return {};
+  }
+
+  // trying to find full emoji match
+  for (const auto &sticker_id : it->second) {
+    auto emoji_it = sticker_set->sticker_emojis_map_.find(sticker_id);
+    CHECK(emoji_it != sticker_set->sticker_emojis_map_.end());
+    if (td::contains(emoji_it->second, emoji)) {
+      return {sticker_id, 0};
+    }
+  }
+
+  // trying to find match without Fitzpatrick modifiers
+  int modifier_id = get_fitzpatrick_modifier(emoji);
+  if (modifier_id > 0) {
+    for (const auto &sticker_id : it->second) {
+      auto emoji_it = sticker_set->sticker_emojis_map_.find(sticker_id);
+      CHECK(emoji_it != sticker_set->sticker_emojis_map_.end());
+      if (td::contains(emoji_it->second, Slice(emoji).remove_suffix(4))) {
+        return {sticker_id, modifier_id};
+      }
+    }
+  }
+
+  // there is no match
+  return {};
+}
+
+std::pair<FileId, int> StickersManager::get_animated_emoji_sticker(const string &emoji) {
+  if (td_->auth_manager_->is_bot()) {
+    return {};
+  }
+  auto &special_sticker_set = add_special_sticker_set(SpecialStickerSetType::animated_emoji());
+  if (!special_sticker_set.id_.is_valid()) {
+    load_special_sticker_set(special_sticker_set);
+    return {};
+  }
+
+  auto sticker_set = get_sticker_set(special_sticker_set.id_);
+  CHECK(sticker_set != nullptr);
+  if (!sticker_set->was_loaded) {
+    load_special_sticker_set(special_sticker_set);
+    return {};
+  }
+
+  return get_animated_emoji_sticker(sticker_set, emoji);
+}
+
 td_api::object_ptr<td_api::MessageContent> StickersManager::get_message_content_animated_emoji_object(
     const string &emoji) {
+  auto animated_sticker = get_animated_emoji_sticker(emoji);
+  if (animated_sticker.first.is_valid()) {
+    return td_api::make_object<td_api::messageAnimatedEmoji>(get_sticker_object(animated_sticker.first), emoji);
+  }
   return td_api::make_object<td_api::messageText>(
       td_api::make_object<td_api::formattedText>(emoji, std::vector<td_api::object_ptr<td_api::textEntity>>()),
       nullptr);
@@ -4139,7 +4190,7 @@ int StickersManager::get_emoji_number(Slice emoji) {
   return emoji[0] - '0';
 }
 
-vector<FileId> StickersManager::get_animated_emoji_stickers(const StickerSet *sticker_set, Slice emoji) const {
+vector<FileId> StickersManager::get_animated_emoji_click_stickers(const StickerSet *sticker_set, Slice emoji) const {
   vector<FileId> result;
   for (auto sticker_id : sticker_set->sticker_ids) {
     auto s = get_sticker(sticker_id);
@@ -4151,7 +4202,7 @@ vector<FileId> StickersManager::get_animated_emoji_stickers(const StickerSet *st
   if (result.empty()) {
     const static vector<string> heart_emojis{"💛", "💙", "💚", "💜", "🧡", "🖤", "🤎", "🤍"};
     if (td::contains(heart_emojis, emoji)) {
-      return get_animated_emoji_stickers(sticker_set, Slice("❤"));
+      return get_animated_emoji_click_stickers(sticker_set, Slice("❤"));
     }
   }
   return result;
@@ -4172,7 +4223,7 @@ void StickersManager::choose_animated_emoji_click_sticker(const StickerSet *stic
     return promise.set_value(nullptr);
   }
 
-  auto all_sticker_ids = get_animated_emoji_stickers(sticker_set, message_text);
+  auto all_sticker_ids = get_animated_emoji_click_stickers(sticker_set, message_text);
   vector<std::pair<int, FileId>> found_stickers;
   for (auto sticker_id : all_sticker_ids) {
     auto it = sticker_set->sticker_emojis_map_.find(sticker_id);
@@ -4322,6 +4373,10 @@ bool StickersManager::is_sent_animated_emoji_click(DialogId dialog_id, Slice emo
 }
 
 Status StickersManager::on_animated_emoji_message_clicked(Slice emoji, FullMessageId full_message_id, string data) {
+  if (td_->auth_manager_->is_bot()) {
+    return Status::OK();
+  }
+
   TRY_RESULT(value, json_decode(data));
   if (value.type() != JsonValue::Type::Object) {
     return Status::Error("Expected an object");
@@ -4402,7 +4457,7 @@ void StickersManager::schedule_update_animated_emoji_clicked(const StickerSet *s
     return;
   }
 
-  auto all_sticker_ids = get_animated_emoji_stickers(sticker_set, emoji);
+  auto all_sticker_ids = get_animated_emoji_click_stickers(sticker_set, emoji);
   std::unordered_map<int, FileId> sticker_ids;
   for (auto sticker_id : all_sticker_ids) {
     auto it = sticker_set->sticker_emojis_map_.find(sticker_id);

td/telegram/StickersManager.h

@@ -603,7 +603,11 @@ class StickersManager final : public Actor {
 
   static int get_emoji_number(Slice emoji);
 
-  vector<FileId> get_animated_emoji_stickers(const StickerSet *sticker_set, Slice emoji) const;
+  static std::pair<FileId, int> get_animated_emoji_sticker(const StickerSet *sticker_set, const string &emoji);
+
+  std::pair<FileId, int> get_animated_emoji_sticker(const string &emoji);
+
+  vector<FileId> get_animated_emoji_click_stickers(const StickerSet *sticker_set, Slice emoji) const;
 
   void choose_animated_emoji_click_sticker(const StickerSet *sticker_set, Slice message_text,
                                            FullMessageId full_message_id, double start_time,

tdutils/td/utils/emoji.cpp

@@ -839,6 +839,18 @@ bool is_emoji(Slice str) {
   return emojis.count(str) != 0;
 }
 
+int get_fitzpatrick_modifier(Slice emoji) {
+  if (emoji.size() < 4 || emoji[emoji.size() - 4] != '\xF0' || emoji[emoji.size() - 3] != '\x9F' ||
+      emoji[emoji.size() - 2] != '\x8F') {
+    return 0;
+  }
+  auto c = static_cast<unsigned char>(emoji.back());
+  if (c < 0xBB || c > 0xBF) {
+    return 0;
+  }
+  return (c - 0xBB) + 2;
+}
+
 Slice remove_emoji_modifiers(Slice emoji) {
   static const Slice modifiers[] = {u8"\uFE0E" /* variation selector-15 */,
                                     u8"\uFE0F" /* variation selector-16 */,

tdutils/td/utils/emoji.h

@@ -14,6 +14,9 @@ namespace td {
 // checks whether the string is an emoji; variation selectors are ignored
 bool is_emoji(Slice str);
 
+// checks whether emoji ends on a Fitzpatrick modifier and returns it's number or 0
+int get_fitzpatrick_modifier(Slice emoji);
+
 // removes all emoji modifiers from the end of the string
 Slice remove_emoji_modifiers(Slice emoji);