From 982c4ea2d8c9d0ae414ea69f20d561022f3b98cc Mon Sep 17 00:00:00 2001
From: Pyfisch <pyfisch@gmail.com>
Date: Tue, 22 Aug 2017 12:01:35 +0200
Subject: [PATCH] Add CompositionEvent bindings

---
 components/script/dom/compositionevent.rs     | 64 +++++++++++++++++++
 components/script/dom/mod.rs                  |  1 +
 .../dom/webidls/CompositionEvent.webidl       | 20 ++++++
 resources/prefs.json                          |  1 +
 4 files changed, 86 insertions(+)
 create mode 100644 components/script/dom/compositionevent.rs
 create mode 100644 components/script/dom/webidls/CompositionEvent.webidl

diff --git a/components/script/dom/compositionevent.rs b/components/script/dom/compositionevent.rs
new file mode 100644
index 00000000000..c1f84386ade
--- /dev/null
+++ b/components/script/dom/compositionevent.rs
@@ -0,0 +1,64 @@
+/* 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 http://mozilla.org/MPL/2.0/. */
+
+use dom::bindings::codegen::Bindings::CompositionEventBinding::{self, CompositionEventMethods};
+use dom::bindings::codegen::Bindings::UIEventBinding::UIEventBinding::UIEventMethods;
+use dom::bindings::error::Fallible;
+use dom::bindings::js::{Root, RootedReference};
+use dom::bindings::reflector::reflect_dom_object;
+use dom::bindings::str::DOMString;
+use dom::uievent::UIEvent;
+use dom::window::Window;
+use dom_struct::dom_struct;
+
+#[dom_struct]
+pub struct CompositionEvent {
+    uievent: UIEvent,
+    data: DOMString,
+}
+
+impl CompositionEvent {
+    pub fn new(window: &Window,
+               type_: DOMString,
+               can_bubble: bool,
+               cancelable: bool,
+               view: Option<&Window>,
+               detail: i32,
+               data: DOMString) -> Root<CompositionEvent> {
+        let ev = reflect_dom_object(box CompositionEvent {
+                                        uievent: UIEvent::new_inherited(),
+                                        data: data,
+                                    },
+                                    window,
+                                    CompositionEventBinding::Wrap);
+        ev.uievent.InitUIEvent(type_, can_bubble, cancelable, view, detail);
+        ev
+    }
+
+    pub fn Constructor(window: &Window,
+                       type_: DOMString,
+                       init: &CompositionEventBinding::CompositionEventInit)
+                       -> Fallible<Root<CompositionEvent>> {
+        let event = CompositionEvent::new(window,
+                                    type_,
+                                    init.parent.parent.bubbles,
+                                    init.parent.parent.cancelable,
+                                    init.parent.view.r(),
+                                    init.parent.detail,
+                                    init.data.clone());
+        Ok(event)
+    }
+}
+
+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()
+    }
+}
diff --git a/components/script/dom/mod.rs b/components/script/dom/mod.rs
index a3b280668e3..448d11ad1c5 100644
--- a/components/script/dom/mod.rs
+++ b/components/script/dom/mod.rs
@@ -236,6 +236,7 @@ pub mod characterdata;
 pub mod client;
 pub mod closeevent;
 pub mod comment;
+pub mod compositionevent;
 pub mod console;
 mod create;
 pub mod crypto;
diff --git a/components/script/dom/webidls/CompositionEvent.webidl b/components/script/dom/webidls/CompositionEvent.webidl
new file mode 100644
index 00000000000..becec52a7b2
--- /dev/null
+++ b/components/script/dom/webidls/CompositionEvent.webidl
@@ -0,0 +1,20 @@
+/* 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 http://mozilla.org/MPL/2.0/. */
+/*
+ * The origin of this IDL file is
+ * https://w3c.github.io/uievents/#idl-compositionevent
+ *
+ */
+
+// https://w3c.github.io/uievents/#idl-compositionevent
+[Pref="dom.compositionevent.enabled", Constructor(DOMString type, optional CompositionEventInit eventInitDict)]
+interface CompositionEvent : UIEvent {
+  readonly attribute DOMString data;
+};
+
+// https://w3c.github.io/uievents/#idl-compositioneventinit
+dictionary CompositionEventInit : UIEventInit {
+  DOMString data = "";
+};
+
diff --git a/resources/prefs.json b/resources/prefs.json
index 8e28e622e7a..f726cb288f4 100644
--- a/resources/prefs.json
+++ b/resources/prefs.json
@@ -1,6 +1,7 @@
 {
   "dom.bluetooth.enabled": false,
   "dom.bluetooth.testing.enabled": false,
+  "dom.compositionevent.enabled": false,
   "dom.customelements.enabled": false,
   "dom.forcetouch.enabled": false,
   "dom.gamepad.enabled": false,