Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 156 insertions, 0 deletions

diff --git a/dom/gamepad/GamepadManager.h b/dom/gamepad/GamepadManager.h
new file mode 100644
index 0000000000..794c0d1ca4
--- /dev/null
+++ b/dom/gamepad/GamepadManager.h
@@ -0,0 +1,156 @@
+/* -*- 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 "nsIObserver.h"
+#include "nsRefPtrHashtable.h"
+// Needed for GamepadMappingType
+#include "mozilla/dom/GamepadBinding.h"
+#include "mozilla/dom/GamepadHandle.h"
+#include <utility>
+
+class nsGlobalWindowInner;
+class nsIGlobalObject;
+
+namespace mozilla {
+namespace gfx {
+class VRManagerChild;
+}  // namespace gfx
+namespace dom {
+
+class EventTarget;
+class Gamepad;
+class GamepadChangeEvent;
+class GamepadEventChannelChild;
+
+class GamepadManager final : public nsIObserver {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIOBSERVER
+
+  // Returns true if we actually have a service up and running
+  static bool IsServiceRunning();
+  // Get the singleton service
+  static already_AddRefed<GamepadManager> GetService();
+
+  void BeginShutdown();
+  void StopMonitoring();
+
+  // Indicate that |aWindow| wants to receive gamepad events.
+  void AddListener(nsGlobalWindowInner* aWindow);
+  // Indicate that |aWindow| should no longer receive gamepad events.
+  void RemoveListener(nsGlobalWindowInner* aWindow);
+
+  // Add a gamepad to the list of known gamepads.
+  void AddGamepad(GamepadHandle aHandle, const nsAString& aID,
+                  GamepadMappingType aMapping, GamepadHand aHand,
+                  uint32_t aDisplayID, uint32_t aNumButtons, uint32_t aNumAxes,
+                  uint32_t aNumHaptics, uint32_t aNumLightIndicator,
+                  uint32_t aNumTouchEvents);
+
+  // Remove the gamepad at |aIndex| from the list of known gamepads.
+  void RemoveGamepad(GamepadHandle aHandle);
+
+  // Synchronize the state of |aGamepad| to match the gamepad stored at |aIndex|
+  void SyncGamepadState(GamepadHandle aHandle, nsGlobalWindowInner* aWindow,
+                        Gamepad* aGamepad);
+
+  // Returns gamepad object if index exists, null otherwise
+  already_AddRefed<Gamepad> GetGamepad(GamepadHandle aHandle) const;
+
+  // Receive GamepadChangeEvent messages from parent process to fire DOM events
+  void Update(const GamepadChangeEvent& aGamepadEvent);
+
+  // Trigger vibrate haptic event to gamepad channels.
+  already_AddRefed<Promise> VibrateHaptic(GamepadHandle aHandle,
+                                          uint32_t aHapticIndex,
+                                          double aIntensity, double aDuration,
+                                          nsIGlobalObject* aGlobal,
+                                          ErrorResult& aRv);
+  // Send stop haptic events to gamepad channels.
+  void StopHaptics();
+
+  // Set light indicator color event to gamepad channels.
+  already_AddRefed<Promise> SetLightIndicatorColor(GamepadHandle aHandle,
+                                                   uint32_t aLightColorIndex,
+                                                   uint8_t aRed, uint8_t aGreen,
+                                                   uint8_t aBlue,
+                                                   nsIGlobalObject* aGlobal,
+                                                   ErrorResult& aRv);
+
+ protected:
+  GamepadManager();
+  ~GamepadManager() = default;
+
+  // Fire a gamepadconnected or gamepaddisconnected event for the gamepad
+  // at |aIndex| to all windows that are listening and have received
+  // gamepad input.
+  void NewConnectionEvent(GamepadHandle aHandle, 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;
+
+  RefPtr<GamepadEventChannelChild> mChannelChild;
+
+ private:
+  nsresult Init();
+
+  void MaybeConvertToNonstandardGamepadEvent(const GamepadChangeEvent& aEvent,
+                                             nsGlobalWindowInner* aWindow);
+
+  bool SetGamepadByEvent(const GamepadChangeEvent& aEvent,
+                         nsGlobalWindowInner* aWindow = nullptr);
+  // To avoid unintentionally causing the gamepad be activated.
+  // Returns false if this gamepad hasn't been seen by this window
+  // and the axis move data is less than AXIS_FIRST_INTENT_THRESHOLD_VALUE.
+  bool AxisMoveIsFirstIntent(nsGlobalWindowInner* aWindow,
+                             GamepadHandle aHandle,
+                             const GamepadChangeEvent& aEvent);
+  bool MaybeWindowHasSeenGamepad(nsGlobalWindowInner* aWindow,
+                                 GamepadHandle aHandle);
+  // 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(nsGlobalWindowInner* aWindow,
+                            GamepadHandle aHandle) const;
+  // Indicate that a window has received data from a gamepad.
+  void SetWindowHasSeenGamepad(nsGlobalWindowInner* aWindow,
+                               GamepadHandle aHandle, bool aHasSeen = true);
+
+  // Gamepads connected to the system. Copies of these are handed out
+  // to each window.
+  nsRefPtrHashtable<nsGenericHashKey<GamepadHandle>, Gamepad> mGamepads;
+  // Inner windows that are listening for gamepad events.
+  // has been sent to that window.
+  nsTArray<RefPtr<nsGlobalWindowInner>> mListeners;
+  uint32_t mPromiseID;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // mozilla_dom_GamepadManager_h_