core: Add InteractiveObject.tab_enabled_default

This patch removes two methods:
* `tab_enabled_avm1`, and
* `tab_enabled_avm2_default`,
and replaces them with `tab_enabled_default`.

This refactor makes the code more readable and simple.

core/src/display_object/avm1_button.rs

@@ -599,8 +599,8 @@ impl<'gc> TInteractiveObject<'gc> for Avm1Button<'gc> {
         }
     }
 
-    fn tab_enabled_avm1(&self, context: &mut UpdateContext<'_, 'gc>) -> bool {
-        self.get_avm1_boolean_property(context, "tabEnabled", |_| true)
+    fn tab_enabled_default(&self, _context: &mut UpdateContext<'_, 'gc>) -> bool {
+        true
     }
 
     fn highlight_bounds(self) -> Rectangle<Twips> {

core/src/display_object/avm2_button.rs

@@ -821,7 +821,7 @@ impl<'gc> TInteractiveObject<'gc> for Avm2Button<'gc> {
         }
     }
 
-    fn tab_enabled_avm2_default(&self, _context: &mut UpdateContext<'_, 'gc>) -> bool {
+    fn tab_enabled_default(&self, _context: &mut UpdateContext<'_, 'gc>) -> bool {
         true
     }
 }

core/src/display_object/edit_text.rs

@@ -2459,11 +2459,7 @@ impl<'gc> TInteractiveObject<'gc> for EditText<'gc> {
         self.tab_enabled(context)
     }
 
-    fn tab_enabled_avm1(&self, context: &mut UpdateContext<'_, 'gc>) -> bool {
-        self.get_avm1_boolean_property(context, "tabEnabled", |_| true)
-    }
-
-    fn tab_enabled_avm2_default(&self, _context: &mut UpdateContext<'_, 'gc>) -> bool {
+    fn tab_enabled_default(&self, _context: &mut UpdateContext<'_, 'gc>) -> bool {
         self.is_editable()
     }
 }

core/src/display_object/interactive.rs

@@ -641,20 +641,16 @@ pub trait TInteractiveObject<'gc>:
         if context.swf.is_action_script_3() {
             self.raw_interactive()
                 .tab_enabled
-                .unwrap_or_else(|| self.tab_enabled_avm2_default(context))
+                .unwrap_or_else(|| self.tab_enabled_default(context))
         } else {
-            self.tab_enabled_avm1(context)
+            self.as_displayobject()
+                .get_avm1_boolean_property(context, "tabEnabled", |context| {
+                    self.tab_enabled_default(context)
+                })
         }
     }
 
-    /// Look up the `tabEnabled` property from AVM1.
-    ///
-    /// Do not use this directly, use [`Self::is_tabbable()`] or [`Self::tab_enabled()`].
-    fn tab_enabled_avm1(&self, _context: &mut UpdateContext<'_, 'gc>) -> bool {
-        false
-    }
-
-    fn tab_enabled_avm2_default(&self, _context: &mut UpdateContext<'_, 'gc>) -> bool {
+    fn tab_enabled_default(&self, _context: &mut UpdateContext<'_, 'gc>) -> bool {
         false
     }
 

core/src/display_object/movie_clip.rs

@@ -3369,14 +3369,17 @@ impl<'gc> TInteractiveObject<'gc> for MovieClip<'gc> {
         }
     }
 
-    fn tab_enabled_avm1(&self, context: &mut UpdateContext<'_, 'gc>) -> bool {
-        self.get_avm1_boolean_property(context, "tabEnabled", |context| {
-            self.tab_index().is_some() || self.is_button_mode(context)
-        })
+    fn tab_enabled_default(&self, context: &mut UpdateContext<'_, 'gc>) -> bool {
+        if self.is_button_mode(context) {
+            return true;
         }
 
-    fn tab_enabled_avm2_default(&self, context: &mut UpdateContext<'_, 'gc>) -> bool {
-        self.is_button_mode(context)
+        let is_avm1 = !context.swf.is_action_script_3();
+        if is_avm1 && self.tab_index().is_some() {
+            return true;
+        }
+
+        false
     }
 }