feat: add --safe-mode command line option (#4985)

This ensures the settings button isn't hidden, and disables plugins from being loaded to make sure the user can always recover from messing things up

src/widgets/Notebook.cpp

@@ -1,6 +1,7 @@
 #include "widgets/Notebook.hpp"
 
 #include "Application.hpp"
+#include "common/Args.hpp"
 #include "common/QLogging.hpp"
 #include "controllers/hotkeys/HotkeyCategory.hpp"
 #include "controllers/hotkeys/HotkeyController.hpp"
@@ -1345,13 +1346,22 @@ void SplitNotebook::addCustomButtons()
     // settings
     auto settingsBtn = this->addCustomButton();
 
-    settingsBtn->setVisible(!getSettings()->hidePreferencesButton.getValue());
+    // This is to ensure you can't lock yourself out of the settings
+    if (getArgs().safeMode)
+    {
+        settingsBtn->setVisible(true);
+    }
+    else
+    {
+        settingsBtn->setVisible(
+            !getSettings()->hidePreferencesButton.getValue());
 
-    getSettings()->hidePreferencesButton.connect(
-        [settingsBtn](bool hide, auto) {
-            settingsBtn->setVisible(!hide);
-        },
-        this->signalHolder_);
+        getSettings()->hidePreferencesButton.connect(
+            [settingsBtn](bool hide, auto) {
+                settingsBtn->setVisible(!hide);
+            },
+            this->signalHolder_);
+    }
 
     settingsBtn->setIcon(NotebookButton::Settings);
 

src/widgets/Window.cpp

@@ -1,6 +1,7 @@
 #include "widgets/Window.hpp"
 
 #include "Application.hpp"
+#include "common/Args.hpp"
 #include "common/Credentials.hpp"
 #include "common/Modes.hpp"
 #include "common/QLogging.hpp"
@@ -736,6 +737,11 @@ void Window::onAccountSelected()
     }
 #endif
 
+    if (getArgs().safeMode)
+    {
+        windowTitle += " (safe mode)";
+    }
+
     this->setWindowTitle(windowTitle);
 
     // update user

src/widgets/settingspages/PluginsPage.cpp

@@ -2,6 +2,7 @@
 #    include "widgets/settingspages/PluginsPage.hpp"
 
 #    include "Application.hpp"
+#    include "common/Args.hpp"
 #    include "controllers/plugins/PluginController.hpp"
 #    include "singletons/Paths.hpp"
 #    include "singletons/Settings.hpp"
@@ -52,6 +53,15 @@ PluginsPage::PluginsPage()
             this->rebuildContent();
         });
         groupLayout->addRow(box);
+        if (getArgs().safeMode)
+        {
+            box->setEnabled(false);
+            auto *disabledLabel = new QLabel(this);
+            disabledLabel->setText("Plugins will not be fully loaded because "
+                                   "Chatterino is in safe mode. You can still "
+                                   "enable and disable them.");
+            groupLayout->addRow(disabledLabel);
+        }
     }
 
     this->rebuildContent();
@@ -177,6 +187,10 @@ void PluginsPage::rebuildContent()
                              this->rebuildContent();
                          });
         pluginEntry->addRow(reloadButton);
+        if (getArgs().safeMode)
+        {
+            reloadButton->setEnabled(false);
+        }
     }
 }