1 files changed, 97 insertions, 0 deletions
diff --git a/dom/browser-element/BrowserElementAudioChannel.h b/dom/browser-element/BrowserElementAudioChannel.h
new file mode 100644
index 000000000..237e5edc8
--- /dev/null
+++ b/dom/browser-element/BrowserElementAudioChannel.h
@@ -0,0 +1,97 @@
+/* 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/. */
+
+#ifndef mozilla_dom_BrowserElementAudioChannels_h
+#define mozilla_dom_BrowserElementAudioChannels_h
+
+#include "mozilla/dom/AudioChannelBinding.h"
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/ErrorResult.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsIObserver.h"
+#include "nsIFrameLoader.h"
+#include "nsWeakReference.h"
+#include "nsWrapperCache.h"
+
+class nsIBrowserElementAPI;
+class nsITabParent;
+class nsPIDOMWindowOuter;
+
+namespace mozilla {
+namespace dom {
+
+class DOMRequest;
+
+class BrowserElementAudioChannel final : public DOMEventTargetHelper
+                                       , public nsSupportsWeakReference
+                                       , public nsIObserver
+{
+public:
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_NSIOBSERVER
+
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(BrowserElementAudioChannel,
+                                           DOMEventTargetHelper)
+
+  static already_AddRefed<BrowserElementAudioChannel>
+  Create(nsPIDOMWindowInner* aWindow,
+         nsIFrameLoader* aFrameLoader,
+         nsIBrowserElementAPI* aAPI,
+         AudioChannel aAudioChannel,
+         ErrorResult& aRv);
+
+  // WebIDL methods
+
+  virtual JSObject* WrapObject(JSContext *aCx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+
+  AudioChannel Name() const;
+
+  already_AddRefed<dom::DOMRequest> GetVolume(ErrorResult& aRv);
+  already_AddRefed<dom::DOMRequest> SetVolume(float aVolume, ErrorResult& aRv);
+
+  already_AddRefed<dom::DOMRequest> GetMuted(ErrorResult& aRv);
+  already_AddRefed<dom::DOMRequest> SetMuted(bool aMuted, ErrorResult& aRv);
+
+  already_AddRefed<dom::DOMRequest> IsActive(ErrorResult& aRv);
+
+  IMPL_EVENT_HANDLER(activestatechanged);
+
+private:
+  BrowserElementAudioChannel(nsPIDOMWindowInner* aWindow,
+                             nsIFrameLoader* aFrameLoader,
+                             nsIBrowserElementAPI* aAPI,
+                             AudioChannel aAudioChannel);
+
+  bool IsSystemAppWindow(nsPIDOMWindowOuter* aWindow) const;
+
+  // This method is used to check whether we're in the nested-mozbrower-frame
+  // situation, see bug1214148.
+  nsresult IsFromNestedFrame(nsISupports* aSubject,
+                             bool& aIsNested) const;
+
+  ~BrowserElementAudioChannel();
+
+  nsresult Initialize();
+
+  void ProcessStateChanged(const char16_t* aData);
+
+  nsCOMPtr<nsIFrameLoader> mFrameLoader;
+  nsCOMPtr<nsIBrowserElementAPI> mBrowserElementAPI;
+  nsCOMPtr<nsITabParent> mTabParent;
+  nsCOMPtr<nsPIDOMWindowOuter> mFrameWindow;
+  AudioChannel mAudioChannel;
+
+  enum {
+    eStateActive,
+    eStateInactive,
+    eStateUnknown
+  } mState;
+};
+
+} // dom namespace
+} // mozilla namespace
+
+#endif // mozilla_dom_BrowserElementAudioChannels_h