Improve td_api::emojiCategory.

td/generate/scheme/td_api.tl

@@ -3695,11 +3695,21 @@ stickerSets total_count:int32 sets:vector<stickerSetInfo> = StickerSets;
 trendingStickerSets total_count:int32 sets:vector<stickerSetInfo> is_premium:Bool = TrendingStickerSets;
 
 
-//@description Contains a list of similar emoji to search for in getStickers and searchStickers
+//@class EmojiCategorySource @description Describes source of stickers for an emoji category
+
+//@description The category contains a list of similar emoji to search for in getStickers and searchStickers @emojis List of emojis for search for
+emojiCategorySourceSearch emojis:vector<string> = EmojiCategorySource;
+
+//@description The category contains Premium stickers that must be found by getPremiumStickers
+emojiCategorySourcePremium = EmojiCategorySource;
+
+
+//@description Describes an emoji category
 //@name Name of the category
 //@icon Custom emoji sticker, which represents icon of the category
-//@emojis List of emojis in the category
+//@source Source of stickers for the emoji category
-emojiCategory name:string icon:sticker emojis:vector<string> = EmojiCategory;
+//@is_greeting True, if the category must be shown first when choosing a sticker for the start page
+emojiCategory name:string icon:sticker source:EmojiCategorySource is_greeting:Bool = EmojiCategory;
 
 //@description Represents a list of emoji categories @categories List of categories
 emojiCategories categories:vector<emojiCategory> = EmojiCategories;

td/telegram/EmojiGroup.cpp

@@ -28,12 +28,14 @@ EmojiGroup::EmojiGroup(telegram_api::object_ptr<telegram_api::EmojiGroup> &&emoj
       title_ = std::move(emoji_group->title_);
       icon_custom_emoji_id_ = CustomEmojiId(emoji_group->icon_emoji_id_);
       emojis_ = std::move(emoji_group->emoticons_);
+      is_greeting_ = true;
       break;
     }
     case telegram_api::emojiGroupPremium::ID: {
       auto emoji_group = telegram_api::move_object_as<telegram_api::emojiGroupPremium>(emoji_group_ptr);
       title_ = std::move(emoji_group->title_);
       icon_custom_emoji_id_ = CustomEmojiId(emoji_group->icon_emoji_id_);
+      is_premium_ = true;
       break;
     }
     default:
@@ -43,8 +45,15 @@ EmojiGroup::EmojiGroup(telegram_api::object_ptr<telegram_api::EmojiGroup> &&emoj
 
 td_api::object_ptr<td_api::emojiCategory> EmojiGroup::get_emoji_category_object(
     StickersManager *stickers_manager) const {
+  auto source = [&]() -> td_api::object_ptr<td_api::EmojiCategorySource> {
+    if (is_premium_) {
+      return td_api::make_object<td_api::emojiCategorySourcePremium>();
+    }
+    return td_api::make_object<td_api::emojiCategorySourceSearch>(vector<string>(emojis_));
+  }();
   return td_api::make_object<td_api::emojiCategory>(
-      title_, stickers_manager->get_custom_emoji_sticker_object(icon_custom_emoji_id_), vector<string>(emojis_));
+      title_, stickers_manager->get_custom_emoji_sticker_object(icon_custom_emoji_id_), std::move(source),
+      is_greeting_);
 }
 
 EmojiGroupList::EmojiGroupList(string used_language_codes, int32 hash,

td/telegram/EmojiGroup.h

@@ -20,6 +20,8 @@ class EmojiGroup {
   string title_;
   CustomEmojiId icon_custom_emoji_id_;
   vector<string> emojis_;
+  bool is_greeting_ = false;
+  bool is_premium_ = false;
 
  public:
   EmojiGroup() = default;

td/telegram/EmojiGroup.hpp

@@ -7,6 +7,7 @@
 #pragma once
 
 #include "td/telegram/EmojiGroup.h"
+#include "td/telegram/Version.h"
 
 #include "td/utils/tl_helpers.h"
 
@@ -14,16 +15,36 @@ namespace td {
 
 template <class StorerT>
 void EmojiGroup::store(StorerT &storer) const {
+  bool has_emojis = !emojis_.empty();
+  BEGIN_STORE_FLAGS();
+  STORE_FLAG(is_greeting_);
+  STORE_FLAG(is_premium_);
+  STORE_FLAG(has_emojis);
+  END_STORE_FLAGS();
   td::store(title_, storer);
   td::store(icon_custom_emoji_id_, storer);
+  if (has_emojis) {
     td::store(emojis_, storer);
+  }
 }
 
 template <class ParserT>
 void EmojiGroup::parse(ParserT &parser) {
+  bool has_emojis;
+  if (parser.version() >= static_cast<int32>(Version::SupportMoreEmojiGroups)) {
+    BEGIN_PARSE_FLAGS();
+    PARSE_FLAG(is_greeting_);
+    PARSE_FLAG(is_premium_);
+    PARSE_FLAG(has_emojis);
+    END_PARSE_FLAGS();
+  } else {
+    has_emojis = true;
+  }
   td::parse(title_, parser);
   td::parse(icon_custom_emoji_id_, parser);
+  if (has_emojis) {
     td::parse(emojis_, parser);
+  }
 }
 
 template <class StorerT>

td/telegram/Version.h

@@ -66,6 +66,7 @@ enum class Version : int32 {
   AddPageBlockChatLinkFlags,  // 50
   SupportRepliesInOtherChats,
   SupportMultipleSharedUsers,
+  SupportMoreEmojiGroups,
   Next
 };