avm2: Stub `flash.display.SimpleButton`

core/src/avm2/globals.rs

@@ -111,6 +111,7 @@ pub struct SystemPrototypes<'gc> {
     pub bytearray: Object<'gc>,
     pub stage: Object<'gc>,
     pub sprite: Object<'gc>,
+    pub simplebutton: Object<'gc>,
 }
 
 impl<'gc> SystemPrototypes<'gc> {
@@ -157,6 +158,7 @@ impl<'gc> SystemPrototypes<'gc> {
             bytearray: empty,
             stage: empty,
             sprite: empty,
+            simplebutton: empty,
         }
     }
 }
@@ -640,6 +642,19 @@ pub fn load_player_globals<'gc>(
         domain,
         script,
     )?;
+    activation
+        .context
+        .avm2
+        .system_prototypes
+        .as_mut()
+        .unwrap()
+        .simplebutton = class(
+        activation,
+        flash::display::simplebutton::create_class(mc),
+        implicit_deriver,
+        domain,
+        script,
+    )?;
     class(
         activation,
         flash::display::displayobjectcontainer::create_class(mc),

core/src/avm2/globals/flash/display.rs

@@ -13,6 +13,7 @@ pub mod loaderinfo;
 pub mod movieclip;
 pub mod scene;
 pub mod shape;
+pub mod simplebutton;
 pub mod sprite;
 pub mod stage;
 pub mod stagealign;

core/src/avm2/globals/flash/display/simplebutton.rs

@@ -0,0 +1,49 @@
+//! `flash.display.SimpleButton` builtin/prototype
+
+use crate::avm2::activation::Activation;
+use crate::avm2::class::{Class, ClassAttributes};
+use crate::avm2::method::Method;
+use crate::avm2::names::{Namespace, QName};
+use crate::avm2::object::Object;
+use crate::avm2::value::Value;
+use crate::avm2::Error;
+use gc_arena::{GcCell, MutationContext};
+
+/// Implements `flash.display.SimpleButton`'s instance constructor.
+pub fn instance_init<'gc>(
+    activation: &mut Activation<'_, 'gc, '_>,
+    this: Option<Object<'gc>>,
+    _args: &[Value<'gc>],
+) -> Result<Value<'gc>, Error> {
+    if let Some(this) = this {
+        activation.super_init(this, &[])?;
+    }
+
+    Ok(Value::Undefined)
+}
+
+/// Implements `flash.display.SimpleButton`'s class constructor.
+pub fn class_init<'gc>(
+    _activation: &mut Activation<'_, 'gc, '_>,
+    _this: Option<Object<'gc>>,
+    _args: &[Value<'gc>],
+) -> Result<Value<'gc>, Error> {
+    Ok(Value::Undefined)
+}
+
+/// Construct `SimpleButton`'s class.
+pub fn create_class<'gc>(mc: MutationContext<'gc, '_>) -> GcCell<'gc, Class<'gc>> {
+    let class = Class::new(
+        QName::new(Namespace::package("flash.display"), "SimpleButton"),
+        Some(QName::new(Namespace::package("flash.display"), "InteractiveObject").into()),
+        Method::from_builtin(instance_init),
+        Method::from_builtin(class_init),
+        mc,
+    );
+
+    let mut write = class.write(mc);
+
+    write.set_attributes(ClassAttributes::SEALED);
+
+    class
+}