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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/gamepad/GamepadManager.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/gamepad/GamepadManager.h')
-rw-r--r--dom/gamepad/GamepadManager.h156
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diff --git a/dom/gamepad/GamepadManager.h b/dom/gamepad/GamepadManager.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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_GamepadManager_h_
+#define mozilla_dom_GamepadManager_h_
+
+#include "nsIIPCBackgroundChildCreateCallback.h"
+#include "nsIObserver.h"
+// Needed for GamepadMappingType
+#include "mozilla/dom/GamepadBinding.h"
+#include "mozilla/dom/GamepadServiceType.h"
+
+class nsGlobalWindow;
+
+namespace mozilla {
+namespace gfx {
+class VRManagerChild;
+} // namespace gfx
+namespace dom {
+
+class EventTarget;
+class Gamepad;
+class GamepadChangeEvent;
+class GamepadEventChannelChild;
+
+class GamepadManager final : public nsIObserver,
+ public nsIIPCBackgroundChildCreateCallback
+{
+ public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSIOBSERVER
+ NS_DECL_NSIIPCBACKGROUNDCHILDCREATECALLBACK
+
+ // Returns true if we actually have a service up and running
+ static bool IsServiceRunning();
+ // Get the singleton service
+ static already_AddRefed<GamepadManager> GetService();
+ // Return true if the API is preffed on.
+ static bool IsAPIEnabled();
+
+ void BeginShutdown();
+ void StopMonitoring();
+
+ // 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.
+ void AddGamepad(uint32_t aIndex, const nsAString& aID, GamepadMappingType aMapping,
+ GamepadServiceType aServiceType, uint32_t aNumButtons, uint32_t aNumAxes);
+
+ // Remove the gamepad at |aIndex| from the list of known gamepads.
+ void RemoveGamepad(uint32_t aIndex, GamepadServiceType aServiceType);
+
+ // 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, GamepadServiceType aServiceType, uint32_t aButton,
+ bool aPressed, double aValue);
+
+ // 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, GamepadServiceType aServiceType,
+ uint32_t aAxis, double aValue);
+
+ // Update the state of |aState| for the gamepad at |aIndex| for all
+ // windows that are listening and visible.
+ void NewPoseEvent(uint32_t aIndex, GamepadServiceType aServiceType,
+ const GamepadPoseState& aState);
+
+ // Synchronize the state of |aGamepad| to match the gamepad stored at |aIndex|
+ void SyncGamepadState(uint32_t aIndex, Gamepad* aGamepad);
+
+ // Returns gamepad object if index exists, null otherwise
+ already_AddRefed<Gamepad> GetGamepad(uint32_t aIndex) const;
+
+ // Receive GamepadChangeEvent messages from parent process to fire DOM events
+ void Update(const GamepadChangeEvent& aGamepadEvent);
+
+ protected:
+ GamepadManager();
+ ~GamepadManager() {};
+
+ // 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 when shutdown has begun
+ bool mShuttingDown;
+
+ // Gamepad IPDL child
+ // This pointer is only used by this singleton instance and
+ // will be destroyed during the IPDL shutdown chain, so we
+ // don't need to refcount it here.
+ nsTArray<GamepadEventChannelChild *> mChannelChildren;
+ gfx::VRManagerChild* mVRChannelChild;
+
+ private:
+
+ nsresult Init();
+
+ bool MaybeWindowHasSeenGamepad(nsGlobalWindow* aWindow, uint32_t aIndex);
+ // 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) const;
+ // Indicate that a window has received data from a gamepad.
+ void SetWindowHasSeenGamepad(nsGlobalWindow* aWindow, uint32_t aIndex,
+ bool aHasSeen = true);
+ // Our gamepad index has VR_GAMEPAD_IDX_OFFSET while GamepadChannelType
+ // is from VRManager.
+ uint32_t GetGamepadIndexWithServiceType(uint32_t aIndex, GamepadServiceType aServiceType);
+
+ // Gamepads connected to the system. Copies of these are handed out
+ // to each window.
+ nsRefPtrHashtable<nsUint32HashKey, Gamepad> mGamepads;
+ // Inner windows that are listening for gamepad events.
+ // has been sent to that window.
+ nsTArray<RefPtr<nsGlobalWindow>> mListeners;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_GamepadManager_h_