From 5964261db5f99e9037296bcd9c5271223d266238 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Sat, 19 Aug 2017 19:46:17 +0300
Subject: [PATCH] Allow to view sticker set from admin event log.

---
 Telegram/Resources/langs/lang.strings         |  3 ++-
 .../history/history_admin_log_item.cpp        | 23 ++++++++++++++++---
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/Telegram/Resources/langs/lang.strings b/Telegram/Resources/langs/lang.strings
index d207ae021..43fce6c99 100644
--- a/Telegram/Resources/langs/lang.strings
+++ b/Telegram/Resources/langs/lang.strings
@@ -1413,7 +1413,8 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_admin_log_banned" = "banned {user}";
 "lng_admin_log_restricted" = "changed restrictions for {user} {until}";
 "lng_admin_log_promoted" = "changed privileges for {user}";
-"lng_admin_log_changed_stickers_group" = "{from} changed group sticker set";
+"lng_admin_log_changed_stickers_group" = "{from} changed group {sticker_set}";
+"lng_admin_log_changed_stickers_set" = "sticker set";
 "lng_admin_log_removed_stickers_group" = "{from} removed group sticker set";
 "lng_admin_log_user_with_username" = "{name} ({mention})";
 "lng_admin_log_restricted_forever" = "indefinitely";
diff --git a/Telegram/SourceFiles/history/history_admin_log_item.cpp b/Telegram/SourceFiles/history/history_admin_log_item.cpp
index 2db8252a4..2586bc8f3 100644
--- a/Telegram/SourceFiles/history/history_admin_log_item.cpp
+++ b/Telegram/SourceFiles/history/history_admin_log_item.cpp
@@ -24,6 +24,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "history/history_message.h"
 #include "history/history_admin_log_inner.h"
 #include "lang/lang_keys.h"
+#include "boxes/sticker_set_box.h"
 #include "messenger.h"
 
 namespace AdminLog {
@@ -419,9 +420,25 @@ void GenerateItems(not_null<History*> history, LocalIdManager &idManager, const
 	};
 
 	auto createChangeStickerSet = [&](const MTPDchannelAdminLogEventActionChangeStickerSet &action) {
-		auto removed = (action.vnew_stickerset.type() == mtpc_inputStickerSetEmpty);
-		auto text = (removed ? lng_admin_log_removed_stickers_group : lng_admin_log_changed_stickers_group)(lt_from, fromLinkText);
-		addSimpleServiceMessage(text);
+		auto set = action.vnew_stickerset;
+		auto removed = (set.type() == mtpc_inputStickerSetEmpty);
+		if (removed) {
+			auto text = lng_admin_log_removed_stickers_group(lt_from, fromLinkText);
+			addSimpleServiceMessage(text);
+		} else {
+			auto text = lng_admin_log_changed_stickers_group(
+				lt_from,
+				fromLinkText,
+				lt_sticker_set,
+				textcmdLink(2, lang(lng_admin_log_changed_stickers_set)));
+			auto setLink = MakeShared<LambdaClickHandler>([set] {
+				Ui::show(Box<StickerSetBox>(set));
+			});
+			auto message = HistoryService::PreparedText { text };
+			message.links.push_back(fromLink);
+			message.links.push_back(setLink);
+			addPart(HistoryService::create(history, idManager.next(), ::date(date), message, 0, peerToUser(from->id)));
+		}
 	};
 
 	switch (action.type()) {