From 13878d674cbc66113bab1eedee06da464646b681 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
Date: Sun, 15 Jan 2017 23:51:58 +0100
Subject: [PATCH] Bug 1331213: Implement Device::media_type, without supporting
 overrides for now. r=heycam
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MozReview-Commit-ID: 9AeHViwoX1t
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
---
 components/style/gecko/media_queries.rs | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/components/style/gecko/media_queries.rs b/components/style/gecko/media_queries.rs
index f69cf1104ac..3dcc53dc39d 100644
--- a/components/style/gecko/media_queries.rs
+++ b/components/style/gecko/media_queries.rs
@@ -76,8 +76,17 @@ impl Device {
 
     /// Returns the current media type of the device.
     pub fn media_type(&self) -> MediaType {
-        // TODO
-        MediaType::Screen
+        unsafe {
+            // FIXME(emilio): Gecko allows emulating random media with
+            // mIsEmulatingMedia / mMediaEmulated . Refactor both sides so that
+            // is supported (probably just making MediaType an Atom).
+            if (*self.pres_context).mMedium == atom!("screen").as_ptr() {
+                MediaType::Screen
+            } else {
+                debug_assert!((*self.pres_context).mMedium == atom!("print").as_ptr());
+                MediaType::Print
+            }
+        }
     }
 
     /// Returns the current viewport size in app units.