From 57a70893ebd25a2b2389c762369cc8b8d3d3611a Mon Sep 17 00:00:00 2001
From: bd339 <bd339@localhost.localdomain>
Date: Mon, 19 Dec 2016 00:11:01 +0100
Subject: [PATCH] Implement MediaQueryListEvent interface

---
 components/script/dom/mediaquerylistevent.rs  | 82 +++++++++++++++++++
 components/script/dom/mod.rs                  |  1 +
 .../dom/webidls/MediaQueryListEvent.webidl    | 15 ++++
 3 files changed, 98 insertions(+)
 create mode 100644 components/script/dom/mediaquerylistevent.rs
 create mode 100644 components/script/dom/webidls/MediaQueryListEvent.webidl

diff --git a/components/script/dom/mediaquerylistevent.rs b/components/script/dom/mediaquerylistevent.rs
new file mode 100644
index 00000000000..8965ba43f79
--- /dev/null
+++ b/components/script/dom/mediaquerylistevent.rs
@@ -0,0 +1,82 @@
+/* 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::EventBinding::EventMethods;
+use dom::bindings::codegen::Bindings::MediaQueryListEventBinding;
+use dom::bindings::codegen::Bindings::MediaQueryListEventBinding::MediaQueryListEventInit;
+use dom::bindings::codegen::Bindings::MediaQueryListEventBinding::MediaQueryListEventMethods;
+use dom::bindings::error::Fallible;
+use dom::bindings::inheritance::Castable;
+use dom::bindings::js::Root;
+use dom::bindings::reflector::reflect_dom_object;
+use dom::bindings::str::DOMString;
+use dom::event::Event;
+use dom::globalscope::GlobalScope;
+use dom::window::Window;
+use servo_atoms::Atom;
+use std::cell::Cell;
+
+// https://drafts.csswg.org/cssom-view/#dom-mediaquerylistevent-mediaquerylistevent
+#[dom_struct]
+pub struct MediaQueryListEvent {
+    event: Event,
+    media: DOMString,
+    matches: Cell<bool>
+}
+
+impl MediaQueryListEvent {
+    pub fn new_uninitialized(global: &GlobalScope) -> Root<MediaQueryListEvent> {
+        MediaQueryListEvent::new_initialized(global,
+                                             DOMString::new(),
+                                             false)
+    }
+
+    pub fn new_initialized(global: &GlobalScope,
+                           media: DOMString,
+                           matches: bool) -> Root<MediaQueryListEvent> {
+        let ev = box MediaQueryListEvent {
+            event: Event::new_inherited(),
+            media: media,
+            matches: Cell::new(matches)
+        };
+        reflect_dom_object(ev, global, MediaQueryListEventBinding::Wrap)
+    }
+
+    pub fn new(global: &GlobalScope, type_: Atom,
+               bubbles: bool, cancelable: bool,
+               media: DOMString, matches: bool) -> Root<MediaQueryListEvent> {
+        let ev = MediaQueryListEvent::new_initialized(global, media, matches);
+        {
+            let event = ev.upcast::<Event>();
+            event.init_event(type_, bubbles, cancelable);
+        }
+        ev
+    }
+
+    pub fn Constructor(window: &Window, type_: DOMString,
+                       init: &MediaQueryListEventInit)
+                       -> Fallible<Root<MediaQueryListEvent>> {
+        let global = window.upcast::<GlobalScope>();
+        Ok(MediaQueryListEvent::new(global, Atom::from(type_),
+                                    init.parent.bubbles, init.parent.cancelable,
+                                    init.media.clone(), init.matches))
+    }
+}
+
+impl MediaQueryListEventMethods for MediaQueryListEvent {
+    // https://drafts.csswg.org/cssom-view/#dom-mediaquerylistevent-media
+    fn Media(&self) -> DOMString {
+        self.media.clone()
+    }
+
+    // https://drafts.csswg.org/cssom-view/#dom-mediaquerylistevent-matches
+    fn Matches(&self) -> bool {
+        self.matches.get()
+    }
+
+    // https://dom.spec.whatwg.org/#dom-event-istrusted
+    fn IsTrusted(&self) -> bool {
+        self.upcast::<Event>().IsTrusted()
+    }
+}
diff --git a/components/script/dom/mod.rs b/components/script/dom/mod.rs
index b432b5a12e5..8c074a48ba5 100644
--- a/components/script/dom/mod.rs
+++ b/components/script/dom/mod.rs
@@ -371,6 +371,7 @@ pub mod location;
 pub mod mediaerror;
 pub mod medialist;
 pub mod mediaquerylist;
+pub mod mediaquerylistevent;
 pub mod messageevent;
 pub mod mimetype;
 pub mod mimetypearray;
diff --git a/components/script/dom/webidls/MediaQueryListEvent.webidl b/components/script/dom/webidls/MediaQueryListEvent.webidl
new file mode 100644
index 00000000000..877ca17b60b
--- /dev/null
+++ b/components/script/dom/webidls/MediaQueryListEvent.webidl
@@ -0,0 +1,15 @@
+/* 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/. */
+
+// https://drafts.csswg.org/cssom-view/#dom-mediaquerylistevent-mediaquerylistevent
+[Constructor(DOMString type, optional MediaQueryListEventInit eventInitDict), Exposed=(Window)]
+interface MediaQueryListEvent : Event {
+  readonly attribute DOMString media;
+  readonly attribute boolean matches;
+};
+
+dictionary MediaQueryListEventInit : EventInit {
+  DOMString media = "";
+  boolean matches = false;
+};