1 files changed, 83 insertions, 0 deletions
diff --git a/dom/media/eme/MediaKeySystemAccessManager.h b/dom/media/eme/MediaKeySystemAccessManager.h
new file mode 100644
index 000000000..9c092248e
--- /dev/null
+++ b/dom/media/eme/MediaKeySystemAccessManager.h
@@ -0,0 +1,83 @@
+/* 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_MediaKeySystemAccessManager_h
+#define mozilla_dom_MediaKeySystemAccessManager_h
+
+#include "mozilla/dom/MediaKeySystemAccess.h"
+#include "nsIObserver.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsISupportsImpl.h"
+#include "nsITimer.h"
+
+namespace mozilla {
+namespace dom {
+
+class DetailedPromise;
+class TestGMPVideoDecoder;
+
+class MediaKeySystemAccessManager final : public nsIObserver
+{
+public:
+
+  explicit MediaKeySystemAccessManager(nsPIDOMWindowInner* aWindow);
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(MediaKeySystemAccessManager, nsIObserver)
+  NS_DECL_NSIOBSERVER
+
+  void Request(DetailedPromise* aPromise,
+               const nsAString& aKeySystem,
+               const Sequence<MediaKeySystemConfiguration>& aConfig);
+
+  void Shutdown();
+
+  struct PendingRequest {
+    PendingRequest(DetailedPromise* aPromise,
+                   const nsAString& aKeySystem,
+                   const Sequence<MediaKeySystemConfiguration>& aConfig,
+                   nsITimer* aTimer);
+    PendingRequest(const PendingRequest& aOther);
+    ~PendingRequest();
+    void CancelTimer();
+    void RejectPromise(const nsCString& aReason);
+
+    RefPtr<DetailedPromise> mPromise;
+    const nsString mKeySystem;
+    const Sequence<MediaKeySystemConfiguration> mConfigs;
+    nsCOMPtr<nsITimer> mTimer;
+  };
+
+private:
+
+  enum RequestType {
+    Initial,
+    Subsequent
+  };
+
+  void Request(DetailedPromise* aPromise,
+               const nsAString& aKeySystem,
+               const Sequence<MediaKeySystemConfiguration>& aConfig,
+               RequestType aType);
+
+  ~MediaKeySystemAccessManager();
+
+  bool EnsureObserversAdded();
+
+  bool AwaitInstall(DetailedPromise* aPromise,
+                    const nsAString& aKeySystem,
+                    const Sequence<MediaKeySystemConfiguration>& aConfig);
+
+  void RetryRequest(PendingRequest& aRequest);
+
+  nsTArray<PendingRequest> mRequests;
+
+  nsCOMPtr<nsPIDOMWindowInner> mWindow;
+  bool mAddedObservers;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif