feat: allow disabling fading recent messages (#6121)

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## Unversioned
 
+- Minor: Add an option for the reduced opacity of message history. (#6121)
 - Minor: Make paused chat indicator more visible, and fix its zoom behavior. (#6123)
 - Bugfix: Don't create native messaging manifest file if browser directory doesn't exist. (#6116)
 - Bugfix: Make reply-cancel button less coarse-grained. (#6106)

src/messages/layouts/MessageLayout.cpp

@@ -249,7 +249,8 @@ MessagePaintResult MessageLayout::paint(const MessagePaintContext &ctx)
                              ctx.messageColors.disabled);
     }
 
-    if (this->message_->flags.has(MessageFlag::RecentMessage))
+    if (this->message_->flags.has(MessageFlag::RecentMessage) &&
+        ctx.preferences.fadeMessageHistory)
     {
         ctx.painter.fillRect(0, ctx.y, pixmap->width(), pixmap->height(),
                              ctx.messageColors.disabled);

src/messages/layouts/MessageLayoutContext.cpp

@@ -106,6 +106,12 @@ void MessagePreferences::connectSettings(Settings *settings,
             this->lastMessagePattern = static_cast<Qt::BrushStyle>(newValue);
         },
         holder);
+
+    settings->fadeMessageHistory.connect(
+        [this](const auto &newValue) {
+            this->fadeMessageHistory = newValue;
+        },
+        holder);
 }
 
 }  // namespace chatterino

src/messages/layouts/MessageLayoutContext.hpp

@@ -55,6 +55,8 @@ struct MessagePreferences {
     bool alternateMessages{};
     bool separateMessages{};
 
+    bool fadeMessageHistory{};
+
     void connectSettings(Settings *settings,
                          pajlada::Signals::SignalHolder &holder);
 };

src/singletons/Settings.hpp

@@ -145,6 +145,8 @@ public:
         "/appearance/messages/messageOverflow", MessageOverflow::Highlight};
     BoolSetting separateMessages = {"/appearance/messages/separateMessages",
                                     false};
+    BoolSetting fadeMessageHistory = {"/appearance/messages/fadeMessageHistory",
+                                      true};
     BoolSetting hideModerated = {"/appearance/messages/hideModerated", false};
     BoolSetting hideModerationActions = {
         "/appearance/messages/hideModerationActions", false};

src/singletons/WindowManager.cpp

@@ -168,6 +168,7 @@ WindowManager::WindowManager(const Paths &paths, Settings &settings,
 
     this->invalidateChannelViewBuffersListener.add(settings.alternateMessages);
     this->invalidateChannelViewBuffersListener.add(settings.separateMessages);
+    this->invalidateChannelViewBuffersListener.add(settings.fadeMessageHistory);
 
     this->repaintVisibleChatWidgetsListener.add(
         this->themes.repaintVisibleChatWidgets_);

src/widgets/settingspages/GeneralPage.cpp

@@ -505,6 +505,13 @@ void GeneralPage::initLayout(GeneralPageView &layout)
                      "message to help better tell them apart.")
         ->addTo(layout);
 
+    SettingWidget::checkbox("Reduce opacity of message history",
+                            s.fadeMessageHistory)
+        ->setTooltip(
+            "Reduce opacity of messages that were posted before Chatterino "
+            "was started or while re-connection.")
+        ->addTo(layout);
+
     SettingWidget::checkbox("Hide deleted messages", s.hideModerated)
         ->setTooltip(
             "When enabled, messages deleted by moderators will be hidden.")