🔧 Add shell version check

src/common/utils.js

@@ -15,6 +15,9 @@
 
 const {Gtk} = imports.gi;
 
+const Config               = imports.misc.config;
+const [GS_MAJOR, GS_MINOR] = Config.PACKAGE_VERSION.split('.');
+
 const ExtensionUtils = imports.misc.extensionUtils;
 const Me             = imports.misc.extensionUtils.getCurrentExtension();
 
@@ -42,3 +45,19 @@ function debug(message) {
 function isGTK4() {
   return Gtk.get_major_version() == 4;
 }
+
+function shellVersionIs(major, minor) {
+  return GS_MAJOR == major && GS_MINOR == minor;
+}
+
+function shellVersionIsAtLeast(major, minor) {
+  if (GS_MAJOR > major) {
+    return true;
+  }
+
+  if (GS_MAJOR == major) {
+    return GS_MINOR >= minor;
+  }
+
+  return false;
+}

src/prefs/FirePage.js

@@ -62,10 +62,6 @@ var FirePage = class FirePage extends PrefsPage {
 
   // ---------------------------------------------------------------------- public methods
 
-  getMinVersion() {
-    return [3, 36];
-  }
-
   getEnabledKey() {
     return 'fire-close-effect';
   }

src/prefs/MatrixPage.js

@@ -15,6 +15,7 @@
 
 const ExtensionUtils = imports.misc.extensionUtils;
 const Me             = imports.misc.extensionUtils.getCurrentExtension();
+const utils          = Me.imports.src.common.utils;
 const PrefsPage      = Me.imports.src.prefs.PrefsPage.PrefsPage;
 
 //////////////////////////////////////////////////////////////////////////////////////////
@@ -27,6 +28,10 @@ var MatrixPage = class MatrixPage extends PrefsPage {
   constructor(settings, builder) {
     super(settings, builder);
 
+    if (!utils.shellVersionIsAtLeast(40, 0)) {
+      return;
+    }
+
     this._builder.add_from_resource('/ui/gtk4/matrixPage.ui');
 
     // Bind all properties.
@@ -42,10 +47,6 @@ var MatrixPage = class MatrixPage extends PrefsPage {
 
   // ---------------------------------------------------------------------- public methods
 
-  getMinVersion() {
-    return [40, 0];
-  }
-
   getEnabledKey() {
     return 'matrix-close-effect';
   }

src/prefs/TRexPage.js

@@ -15,6 +15,7 @@
 
 const ExtensionUtils = imports.misc.extensionUtils;
 const Me             = imports.misc.extensionUtils.getCurrentExtension();
+const utils          = Me.imports.src.common.utils;
 const PrefsPage      = Me.imports.src.prefs.PrefsPage.PrefsPage;
 
 //////////////////////////////////////////////////////////////////////////////////////////
@@ -27,6 +28,10 @@ var TRexPage = class TRexPage extends PrefsPage {
   constructor(settings, builder) {
     super(settings, builder);
 
+    if (!utils.shellVersionIsAtLeast(40, 0)) {
+      return;
+    }
+
     this._builder.add_from_resource('/ui/gtk4/trexPage.ui');
 
     // Bind all properties.
@@ -42,10 +47,6 @@ var TRexPage = class TRexPage extends PrefsPage {
 
   // ---------------------------------------------------------------------- public methods
 
-  getMinVersion() {
-    return [40, 0];
-  }
-
   getEnabledKey() {
     return 'trex-close-effect';
   }

src/prefs/TVEffectPage.js

@@ -40,10 +40,6 @@ var TVEffectPage = class TVEffectPage extends PrefsPage {
 
   // ---------------------------------------------------------------------- public methods
 
-  getMinVersion() {
-    return [3, 36];
-  }
-
   getEnabledKey() {
     return 'tv-close-effect';
   }