chore: add some channel view layout commands (#6342)

CHANGELOG.md

@@ -79,6 +79,7 @@
 - Dev: Bumped clang-format requirement to 19. (#6236)
 - Dev: Factored out AUMID to `Version`. (#6321)
 - Dev: Silenced some warnings when compiling with clang-cl. (#6331)
+- Dev: Added some commands for forcing a relayout (and related things) in channel views. (#6342)
 
 ## 2.5.3
 

src/controllers/commands/CommandController.cpp

@@ -462,6 +462,15 @@ CommandController::CommandController(const Paths &paths)
     this->registerCommand("/debug-force-image-unload",
                           &commands::forceImageUnload);
 
+    this->registerCommand("/debug-force-layout-channel-views",
+                          &commands::forceLayoutChannelViews);
+
+    this->registerCommand("/debug-increment-image-generation",
+                          &commands::incrementImageGeneration);
+
+    this->registerCommand("/debug-invalidate-buffers",
+                          &commands::invalidateBuffers);
+
     this->registerCommand("/debug-test", &commands::debugTest);
 
     this->registerCommand("/shield", &commands::shieldModeOn);

src/controllers/commands/builtin/chatterino/Debugging.cpp

@@ -14,6 +14,7 @@
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "singletons/Theme.hpp"
 #include "singletons/Toasts.hpp"
+#include "singletons/WindowManager.hpp"
 #include "util/PostToThread.hpp"
 
 #include <QApplication>
@@ -139,6 +140,24 @@ QString forceImageUnload(const CommandContext &ctx)
     return "";
 }
 
+QString forceLayoutChannelViews(const CommandContext & /*ctx*/)
+{
+    getApp()->getWindows()->forceLayoutChannelViews();
+    return {};
+}
+
+QString incrementImageGeneration(const CommandContext & /*ctx*/)
+{
+    getApp()->getWindows()->incGeneration();
+    return {};
+}
+
+QString invalidateBuffers(const CommandContext & /*ctx*/)
+{
+    getApp()->getWindows()->invalidateChannelViewBuffers();
+    return {};
+}
+
 QString debugTest(const CommandContext &ctx)
 {
     if (!ctx.channel)

src/controllers/commands/builtin/chatterino/Debugging.hpp

@@ -22,6 +22,12 @@ QString forceImageGarbageCollection(const CommandContext &ctx);
 
 QString forceImageUnload(const CommandContext &ctx);
 
+QString forceLayoutChannelViews(const CommandContext &ctx);
+
+QString incrementImageGeneration(const CommandContext &ctx);
+
+QString invalidateBuffers(const CommandContext &ctx);
+
 QString debugTest(const CommandContext &ctx);
 
 }  // namespace chatterino::commands

src/widgets/helper/ChannelView.cpp

@@ -735,8 +735,8 @@ void ChannelView::layoutVisibleMessages(
 
             y += message->getHeight();
         }
+        this->bufferInvalidationQueued_ = false;
     }
-    this->bufferInvalidationQueued_ = false;
 
     if (redrawRequired)
     {