fix: relayout notebook if any custom buttons change (#6328)

CHANGELOG.md

@@ -39,6 +39,7 @@
 - Bugfix: Fixed a crash that could occur when eventsub was enabled and Chatterino was attached to a conhost on Windows that was later gone. (#6161)
 - Bugfix: Fixed a crash that could occur an eventsub connection's keepalive timer would run after the connection was dead, causing the keepalive timer to use-itself-after-free. (#6204)
 - Bugfix: Fixed a crash that could occur when an image started loading mid app shutdown. (#6213)
+- Bugfix: Fixed notebook buttons (settings, account switcher, streamer mode) not performing a relayout when their visibility changed, causing a gap until resize. Linux / macOS only. (#6328)
 - Bugfix: Fixed some minor typos. (#6196)
 - Bugfix: Fixed inconsistent spaces in messages when using fractional scaling. (#6231, #6254)
 - Bugfix: Fixed eventsub message delete notifications not being affected by "Show deletions of single messages". (#6233)

src/widgets/Notebook.cpp

@@ -1424,10 +1424,16 @@ void SplitNotebook::addCustomButtons()
             !getSettings()->hidePreferencesButton.getValue());
 
         getSettings()->hidePreferencesButton.connect(
-            [settingsBtn](bool hide, auto) {
-                settingsBtn->setVisible(!hide);
+            [this, settingsBtn](bool hide) {
+                auto oldVisibility = settingsBtn->isVisible();
+                auto newVisibility = !hide;
+                settingsBtn->setVisible(newVisibility);
+                if (oldVisibility != newVisibility)
+                {
+                    this->performLayout();
+                }
             },
-            this->signalHolder_);
+            this->signalHolder_, false);
     }
 
     QObject::connect(settingsBtn, &Button::leftClicked, [this] {
@@ -1444,10 +1450,16 @@ void SplitNotebook::addCustomButtons()
 
     userBtn->setVisible(!getSettings()->hideUserButton.getValue());
     getSettings()->hideUserButton.connect(
-        [userBtn](bool hide, auto) {
-            userBtn->setVisible(!hide);
+        [this, userBtn](bool hide) {
+            auto oldVisibility = userBtn->isVisible();
+            auto newVisibility = !hide;
+            userBtn->setVisible(newVisibility);
+            if (oldVisibility != newVisibility)
+            {
+                this->performLayout();
+            }
         },
-        this->signalHolder_);
+        this->signalHolder_, false);
 
     QObject::connect(userBtn, &Button::leftClicked, [this, userBtn] {
         getApp()->getWindows()->showAccountSelectPopup(
@@ -1489,8 +1501,16 @@ void SplitNotebook::updateStreamerModeIcon()
         this->streamerModeIcon_->setPixmap(
             getResources().buttons.streamerModeEnabledDark);
     }
-    this->streamerModeIcon_->setVisible(
-        getApp()->getStreamerMode()->isEnabled());
+
+    auto oldVisibility = this->streamerModeIcon_->isVisible();
+    auto newVisibility = getApp()->getStreamerMode()->isEnabled();
+
+    this->streamerModeIcon_->setVisible(newVisibility);
+
+    if (oldVisibility != newVisibility)
+    {
+        this->performLayout();
+    }
 }
 
 void SplitNotebook::themeChangedEvent()

src/widgets/Notebook.hpp

@@ -170,9 +170,9 @@ protected:
      **/
     bool shouldShowTab(const NotebookTab *tab) const;
 
-private:
     void performLayout(bool animate = false);
 
+private:
     struct LayoutContext {
         int left = 0;
         int right = 0;