Bug 842782 - p2: introduce attributes for orientation lock to video element. r=jwwang,smaug

MozReview-Commit-ID: odq1y9qH1

dom/html/HTMLVideoElement.cpp

@@ -47,6 +47,7 @@ NS_IMPL_ELEMENT_CLONE(HTMLVideoElement)
 HTMLVideoElement::HTMLVideoElement(already_AddRefed<NodeInfo>& aNodeInfo)
   : HTMLMediaElement(aNodeInfo)
   , mUseScreenWakeLock(true)
+  , mIsOrientationLocked(false)
 {
 }
 

dom/html/HTMLVideoElement.h

@@ -9,6 +9,7 @@
 
 #include "mozilla/Attributes.h"
 #include "mozilla/dom/HTMLMediaElement.h"
+#include "MediaPrefs.h"
 
 namespace mozilla {
 
@@ -139,6 +140,22 @@ public:
 
   already_AddRefed<VideoPlaybackQuality> GetVideoPlaybackQuality();
 
+
+  bool MozOrientationLockEnabled() const
+  {
+    return MediaPrefs::VideoOrientationLockEnabled();
+  }
+
+  bool MozIsOrientationLocked() const
+  {
+    return mIsOrientationLocked;
+  }
+
+  void SetMozIsOrientationLocked(bool aLock)
+  {
+    mIsOrientationLocked = aLock;
+  }
+
 protected:
   virtual ~HTMLVideoElement();
 
@@ -151,6 +168,8 @@ protected:
   bool mUseScreenWakeLock;
   RefPtr<WakeLock> mScreenWakeLock;
 
+  bool mIsOrientationLocked;
+
 private:
   static void MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
                                     GenericSpecifiedValues* aGenericData);

dom/webidl/HTMLVideoElement.webidl

@@ -49,6 +49,14 @@ partial interface HTMLVideoElement {
   // True if the video should use a screen wake lock.
   [Pref="dom.wakelock.enabled", Func="Navigator::HasWakeLockSupport"]
   attribute boolean mozUseScreenWakeLock;
+
+  // Attributes for builtin video controls to lock screen orientation.
+  // True if video controls should lock orientation when fullscreen.
+  [Pref="media.videocontrols.lock-video-orientation", Func="IsChromeOrXBL"]
+    readonly attribute boolean mozOrientationLockEnabled;
+  // True if screen orientation is locked by video controls.
+  [Pref="media.videocontrols.lock-video-orientation", Func="IsChromeOrXBL"]
+    attribute boolean mozIsOrientationLocked;
 };
 
 // https://dvcs.w3.org/hg/html-media/raw-file/default/media-source/media-source.html#idl-def-HTMLVideoElement