[UI, Wayland] IJPL-224767 Add a safety check for preferred popup sizes on Wayland

A follow-up to IJ-CR-188775: cover the case when the IDE
window is too small.

Space-RevId: 82df00189117da1d8d5731a2ab63d85846d41717

GitOrigin-RevId: 152c890de7bcffae29025d35a96943e8d1bb2361

platform/platform-impl/src/com/intellij/ui/popup/WizardPopup.java

@@ -374,6 +374,10 @@ public abstract class WizardPopup extends AbstractPopup implements ActionListene
         // The ultimate parent should be an IdeFrameImpl anyway.
         if (!(parent instanceof IdeFrameImpl window) || !window.isShowing()) return null;
         screenHeight = window.getHeight();
+        // Check if the main window is too small.
+        // Since the screen size on Wayland can't be trusted (JBR-9884), we can only fall back to the default size in this case.
+        // This is a reasonable fallback, as even a tiny 14" MacBook screen with the maximum scaling is 665 px, so 600 should be safe.
+        if (screenHeight < MAX_SIZE.height) return null;
       }
       else {
         Point locationOnScreen = null;