Replaced sticker set box with foreground preview on custom emoji click.

Telegram/Resources/langs/lang.strings

@@ -4989,6 +4989,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_context_animated_emoji_many#one" = "This message contains emoji from **{count} pack**.";
 "lng_context_animated_emoji_many#other" = "This message contains emoji from **{count} packs**.";
 "lng_context_animated_reaction" = "This reaction is from the **{name}** pack.";
+"lng_context_animated_emoji_preview" = "This emoji is from the **{name}** pack.";
 "lng_context_animated_tag" = "This tag is from **{name} pack**.";
 "lng_context_animated_reactions" = "Reactions contain emoji from **{name} pack**.";
 "lng_context_animated_reactions_many#one" = "Reactions contain emoji from **{count} pack**.";

Telegram/SourceFiles/history/view/history_view_reaction_preview.cpp

@@ -35,7 +35,8 @@ namespace HistoryView {
 bool ShowReactionPreview(
 		not_null<Window::SessionController*> controller,
 		FullMsgId origin,
-		Data::ReactionId reactionId) {
+		Data::ReactionId reactionId,
+		bool emojiPreview) {
 	auto document = (DocumentData*)(nullptr);
 	if (const auto custom = reactionId.custom()) {
 		document = controller->session().data().document(custom);
@@ -112,10 +113,12 @@ bool ShowReactionPreview(
 			});
 			state->label = base::make_unique_q<Ui::FlatLabel>(
 				state->background.get(),
-				tr::lng_context_animated_reaction(
-					lt_name,
-					rpl::single(Ui::Text::Colorized(packName)),
-					tr::rich));
+				(emojiPreview
+					? tr::lng_context_animated_emoji_preview
+					: tr::lng_context_animated_reaction)(
+						lt_name,
+						rpl::single(Ui::Text::Colorized(packName)),
+						tr::rich));
 			state->label->setAttribute(Qt::WA_TransparentForMouseEvents);
 			const auto backgroundRaw = state->background.get();
 			const auto labelRaw = state->label.get();

Telegram/SourceFiles/history/view/history_view_reaction_preview.h

@@ -17,9 +17,10 @@ class SessionController;
 
 namespace HistoryView {
 
-[[nodiscard]] bool ShowReactionPreview(
+bool ShowReactionPreview(
 	not_null<Window::SessionController*> controller,
 	FullMsgId origin,
-	Data::ReactionId reactionId);
+	Data::ReactionId reactionId,
+	bool emojiPreview = false);
 
 } // namespace HistoryView

Telegram/SourceFiles/history/view/history_view_text_helper.cpp

@@ -7,12 +7,12 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "history/view/history_view_text_helper.h"
 
-#include "boxes/sticker_set_box.h"
 #include "core/click_handler_types.h"
 #include "data/data_document.h"
 #include "data/data_session.h"
 #include "data/stickers/data_custom_emoji.h"
 #include "history/view/history_view_element.h"
+#include "history/view/history_view_reaction_preview.h"
 #include "history/history.h"
 #include "main/main_session.h"
 #include "window/window_session_controller.h"
@@ -57,8 +57,11 @@ void InitElementTextPart(not_null<Element*> view, Ui::Text::String &text) {
 				if (const auto controller = my.sessionWindow.get()) {
 					const auto documentId = Data::ParseCustomEmojiData(entityData);
 					if (documentId) {
-						const auto document = controller->session().data().document(documentId);
-						StickerSetBox::Show(controller->uiShow(), document, documentId);
+						ShowReactionPreview(
+							controller,
+							my.itemId,
+							Data::ReactionId{ documentId },
+							true);
 					}
 				}
 			});