diff -r 000000000000 -r 6474c204b198 dom/gamepad/GamepadService.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/gamepad/GamepadService.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,153 @@
+/* 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_GamepadService_h_
+#define mozilla_dom_GamepadService_h_
+
+#include <stdint.h>
+#include "Gamepad.h"
+#include "nsAutoPtr.h"
+#include "nsCOMArray.h"
+#include "nsIGamepadServiceTest.h"
+#include "nsGlobalWindow.h"
+#include "nsIFocusManager.h"
+#include "nsIObserver.h"
+#include "nsITimer.h"
+#include "nsTArray.h"
+
+class nsIDOMDocument;
+
+namespace mozilla {
+namespace dom {
+
+class EventTarget;
+
+class GamepadService : public nsIObserver
+{
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIOBSERVER
+
+  // Get the singleton service
+  static already_AddRefed<GamepadService> GetService();
+  // Return true if the API is preffed on.
+  static bool IsAPIEnabled();
+
+  void BeginShutdown();
+
+  // Indicate that |aWindow| wants to receive gamepad events.
+  void AddListener(nsGlobalWindow* aWindow);
+  // Indicate that |aWindow| should no longer receive gamepad events.
+  void RemoveListener(nsGlobalWindow* aWindow);
+
+  // Add a gamepad to the list of known gamepads, and return its index.
+  uint32_t AddGamepad(const char* aID, GamepadMappingType aMapping,
+                      uint32_t aNumButtons, uint32_t aNumAxes);
+  // Remove the gamepad at |aIndex| from the list of known gamepads.
+  void RemoveGamepad(uint32_t aIndex);
+
+  // Update the state of |aButton| for the gamepad at |aIndex| for all
+  // windows that are listening and visible, and fire one of
+  // a gamepadbutton{up,down} event at them as well.
+  // aPressed is used for digital buttons, aValue is for analog buttons.
+  void NewButtonEvent(uint32_t aIndex, uint32_t aButton, bool aPressed,
+                      double aValue);
+  // When only a digital button is available the value will be synthesized.
+  void NewButtonEvent(uint32_t aIndex, uint32_t aButton, bool aPressed);
+
+  // Update the state of |aAxis| for the gamepad at |aIndex| for all
+  // windows that are listening and visible, and fire a gamepadaxismove
+  // event at them as well.
+  void NewAxisMoveEvent(uint32_t aIndex, uint32_t aAxis, double aValue);
+
+  // Synchronize the state of |aGamepad| to match the gamepad stored at |aIndex|
+  void SyncGamepadState(uint32_t aIndex, Gamepad* aGamepad);
+
+ protected:
+  GamepadService();
+  virtual ~GamepadService() {};
+  void StartCleanupTimer();
+
+  // Fire a gamepadconnected or gamepaddisconnected event for the gamepad
+  // at |aIndex| to all windows that are listening and have received
+  // gamepad input.
+  void NewConnectionEvent(uint32_t aIndex, bool aConnected);
+
+  // Fire a gamepadaxismove event to the window at |aTarget| for |aGamepad|.
+  void FireAxisMoveEvent(EventTarget* aTarget,
+                         Gamepad* aGamepad,
+                         uint32_t axis,
+                         double value);
+
+  // Fire one of gamepadbutton{up,down} event at the window at |aTarget| for
+  // |aGamepad|.
+  void FireButtonEvent(EventTarget* aTarget,
+                       Gamepad* aGamepad,
+                       uint32_t aButton,
+                       double aValue);
+
+  // Fire one of gamepad{connected,disconnected} event at the window at
+  // |aTarget| for |aGamepad|.
+  void FireConnectionEvent(EventTarget* aTarget,
+                           Gamepad* aGamepad,
+                           bool aConnected);
+
+  // true if this feature is enabled in preferences
+  bool mEnabled;
+  // true if non-standard events are enabled in preferences
+  bool mNonstandardEventsEnabled;
+  // true if the platform-specific backend has started work
+  bool mStarted;
+  // true when shutdown has begun
+  bool mShuttingDown;
+
+ private:
+  // Returns true if we have already sent data from this gamepad
+  // to this window. This should only return true if the user
+  // explicitly interacted with a gamepad while this window
+  // was focused, by pressing buttons or similar actions.
+  bool WindowHasSeenGamepad(nsGlobalWindow* aWindow, uint32_t aIndex);
+  // Indicate that a window has recieved data from a gamepad.
+  void SetWindowHasSeenGamepad(nsGlobalWindow* aWindow, uint32_t aIndex,
+                               bool aHasSeen = true);
+
+  static void TimeoutHandler(nsITimer* aTimer, void* aClosure);
+  static bool sShutdown;
+
+  // Gamepads connected to the system. Copies of these are handed out
+  // to each window.
+  nsTArray<nsRefPtr<Gamepad> > mGamepads;
+  // nsGlobalWindows that are listening for gamepad events.
+  // has been sent to that window.
+  nsTArray<nsRefPtr<nsGlobalWindow> > mListeners;
+  nsCOMPtr<nsITimer> mTimer;
+  nsCOMPtr<nsIFocusManager> mFocusManager;
+  nsCOMPtr<nsIObserver> mObserver;
+};
+
+// Service for testing purposes
+class GamepadServiceTest : public nsIGamepadServiceTest
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIGAMEPADSERVICETEST
+
+  GamepadServiceTest();
+
+  static already_AddRefed<GamepadServiceTest> CreateService();
+
+private:
+  static GamepadServiceTest* sSingleton;
+  virtual ~GamepadServiceTest() {};
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#define NS_GAMEPAD_TEST_CID \
+{ 0xfb1fcb57, 0xebab, 0x4cf4, \
+{ 0x96, 0x3b, 0x1e, 0x4d, 0xb8, 0x52, 0x16, 0x96 } }
+#define NS_GAMEPAD_TEST_CONTRACTID "@mozilla.org/gamepad-test;1"
+
+#endif // mozilla_dom_GamepadService_h_