From 1d06086bb9b3e0c606d03faf08da6cb1c94bb2f5 Mon Sep 17 00:00:00 2001
From: Jacob Alexander Thompson <jacobalthompson@gmail.com>
Date: Sun, 28 Sep 2025 03:04:08 -0700
Subject: [PATCH] feat: add setting for character limit of truncated deleted
 messages (#6491)

---
 CHANGELOG.md                                     |  1 +
 src/messages/MessageBuilder.cpp                  |  5 +++--
 src/providers/twitch/eventsub/MessageBuilder.cpp |  7 ++++---
 src/singletons/Settings.hpp                      |  7 +++++++
 src/widgets/settingspages/GeneralPage.cpp        | 16 ++++++++++++++++
 5 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index eb0576fe..8b9039a4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## Unversioned
 
 - Minor: Fixed usercard resizing improperly without recent messages. (#6496)
+- Minor: Added setting for character limit of deleted messages. (#6491)
 - Dev: Update release documentation. (#6498)
 - Dev: Make code sanitizers opt in with the `CHATTERINO_SANITIZER_SUPPORT` CMake option. After that's enabled, use the `SANITIZE_*` flag to enable individual sanitizers. (#6493)
 - Dev: Remove unused QTextCodec includes. (#6487)
diff --git a/src/messages/MessageBuilder.cpp b/src/messages/MessageBuilder.cpp
index 05123f2e..4a68cda8 100644
--- a/src/messages/MessageBuilder.cpp
+++ b/src/messages/MessageBuilder.cpp
@@ -1257,9 +1257,10 @@ MessagePtr MessageBuilder::makeDeletionMessageFromIRC(
                                  MessageColor::System);
 
     auto deletedMessageText = originalMessage->messageText;
-    if (deletedMessageText.length() > 50)
+    auto limit = getSettings()->deletedMessageLengthLimit.getValue();
+    if (limit > 0 && deletedMessageText.length() > limit)
     {
-        deletedMessageText = deletedMessageText.left(50) + "…";
+        deletedMessageText = deletedMessageText.left(limit) + "…";
     }
 
     builder
diff --git a/src/providers/twitch/eventsub/MessageBuilder.cpp b/src/providers/twitch/eventsub/MessageBuilder.cpp
index 984838c9..3a692cf7 100644
--- a/src/providers/twitch/eventsub/MessageBuilder.cpp
+++ b/src/providers/twitch/eventsub/MessageBuilder.cpp
@@ -331,14 +331,15 @@ void makeModerateMessage(
 
     builder.emplaceSystemTextAndUpdate("saying:", text);
 
-    if (action.messageBody.view().length() > 50)
+    auto limit = getSettings()->deletedMessageLengthLimit.getValue();
+    if (limit > 0 && action.messageBody.view().length() > limit)
     {
         builder
-            .emplace<TextElement>(action.messageBody.qt().left(50) + "…",
+            .emplace<TextElement>(action.messageBody.qt().left(limit) + "…",
                                   MessageElementFlag::Text, MessageColor::Text)
             ->setLink({Link::JumpToMessage, action.messageID.qt()});
 
-        text.append(action.messageBody.qt().left(50) + "…");
+        text.append(action.messageBody.qt().left(limit) + "…");
     }
     else
     {
diff --git a/src/singletons/Settings.hpp b/src/singletons/Settings.hpp
index aeff2d6f..aa4eea5b 100644
--- a/src/singletons/Settings.hpp
+++ b/src/singletons/Settings.hpp
@@ -320,6 +320,13 @@ public:
         true,
     };
 
+    /// The maximum length the contents of a deleted message can be
+    /// before we truncate it in the chat
+    IntSetting deletedMessageLengthLimit = {
+        "/behaviour/deletedMessageLengthLimit",
+        50,
+    };
+
     // Auto-completion
     BoolSetting onlyFetchChattersForSmallerStreamers = {
         "/behaviour/autocompletion/onlyFetchChattersForSmallerStreamers", true};
diff --git a/src/widgets/settingspages/GeneralPage.cpp b/src/widgets/settingspages/GeneralPage.cpp
index a9016f4b..7778b946 100644
--- a/src/widgets/settingspages/GeneralPage.cpp
+++ b/src/widgets/settingspages/GeneralPage.cpp
@@ -556,6 +556,22 @@ void GeneralPage::initLayout(GeneralPageView &layout)
         [](auto args) {
             return fuzzyToInt(args.value, 0);
         });
+    layout.addDropdown<int>(
+        "Limit length of deleted messages",
+        {"No limit", "50 characters", "100 characters", "200 characters",
+         "300 characters", "400 characters"},
+        s.deletedMessageLengthLimit,
+        [](auto val) {
+            return val ? QString::number(val) + " characters"
+                       : QString("No limit");
+        },
+        [](const auto &args) {
+            return fuzzyToInt(args.value, 0);
+        },
+        true,
+        {"Limits the amount of characters displayed in deleted messages "
+         "when announced via system message."});
+
     layout.addSeparator();
 
     SettingWidget::checkbox("Draw a line below the most recent message before "