1 files changed, 89 insertions, 0 deletions
diff --git a/components/script/dom/compositionevent.rs b/components/script/dom/compositionevent.rs
new file mode 100644
index 00000000000..1cdc1cd8dcc
--- /dev/null
+++ b/components/script/dom/compositionevent.rs
@@ -0,0 +1,89 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use crate::dom::bindings::codegen::Bindings::CompositionEventBinding::{
+    self, CompositionEventMethods,
+};
+use crate::dom::bindings::codegen::Bindings::UIEventBinding::UIEventBinding::UIEventMethods;
+use crate::dom::bindings::error::Fallible;
+use crate::dom::bindings::reflector::reflect_dom_object;
+use crate::dom::bindings::root::DomRoot;
+use crate::dom::bindings::str::DOMString;
+use crate::dom::uievent::UIEvent;
+use crate::dom::window::Window;
+use dom_struct::dom_struct;
+
+#[dom_struct]
+pub struct CompositionEvent {
+    uievent: UIEvent,
+    data: DOMString,
+}
+
+impl CompositionEvent {
+    pub fn new_inherited() -> CompositionEvent {
+        CompositionEvent {
+            uievent: UIEvent::new_inherited(),
+            data: DOMString::new(),
+        }
+    }
+
+    pub fn new_uninitialized(window: &Window) -> DomRoot<CompositionEvent> {
+        reflect_dom_object(Box::new(CompositionEvent::new_inherited()), window)
+    }
+
+    pub fn new(
+        window: &Window,
+        type_: DOMString,
+        can_bubble: bool,
+        cancelable: bool,
+        view: Option<&Window>,
+        detail: i32,
+        data: DOMString,
+    ) -> DomRoot<CompositionEvent> {
+        let ev = reflect_dom_object(
+            Box::new(CompositionEvent {
+                uievent: UIEvent::new_inherited(),
+                data: data,
+            }),
+            window,
+        );
+        ev.uievent
+            .InitUIEvent(type_, can_bubble, cancelable, view, detail);
+        ev
+    }
+
+    #[allow(non_snake_case)]
+    pub fn Constructor(
+        window: &Window,
+        type_: DOMString,
+        init: &CompositionEventBinding::CompositionEventInit,
+    ) -> Fallible<DomRoot<CompositionEvent>> {
+        let event = CompositionEvent::new(
+            window,
+            type_,
+            init.parent.parent.bubbles,
+            init.parent.parent.cancelable,
+            init.parent.view.as_deref(),
+            init.parent.detail,
+            init.data.clone(),
+        );
+        Ok(event)
+    }
+
+    pub fn data(&self) -> &str {
+        &*self.data
+    }
+}
+
+impl CompositionEventMethods for CompositionEvent {
+    // https://w3c.github.io/uievents/#dom-compositionevent-data
+    fn Data(&self) -> DOMString {
+        self.data.clone()
+    }
+
+    // https://dom.spec.whatwg.org/#dom-event-istrusted
+    fn IsTrusted(&self) -> bool {
+        self.uievent.IsTrusted()
+    }
+}