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-rw-r--r--dom/gamepad/Gamepad.h134
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diff --git a/dom/gamepad/Gamepad.h b/dom/gamepad/Gamepad.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_gamepad_Gamepad_h
+#define mozilla_dom_gamepad_Gamepad_h
+
+#include "mozilla/ErrorResult.h"
+#include "mozilla/dom/GamepadBinding.h"
+#include "mozilla/dom/GamepadButton.h"
+#include "mozilla/dom/GamepadPose.h"
+#include "mozilla/dom/Performance.h"
+#include <stdint.h>
+#include "nsCOMPtr.h"
+#include "nsString.h"
+#include "nsTArray.h"
+#include "nsWrapperCache.h"
+
+namespace mozilla {
+namespace dom {
+
+// Per spec:
+// https://dvcs.w3.org/hg/gamepad/raw-file/default/gamepad.html#remapping
+const int kStandardGamepadButtons = 17;
+const int kStandardGamepadAxes = 4;
+
+const int kButtonLeftTrigger = 6;
+const int kButtonRightTrigger = 7;
+
+const int kLeftStickXAxis = 0;
+const int kLeftStickYAxis = 1;
+const int kRightStickXAxis = 2;
+const int kRightStickYAxis = 3;
+
+
+class Gamepad final : public nsISupports,
+ public nsWrapperCache
+{
+public:
+ Gamepad(nsISupports* aParent,
+ const nsAString& aID, uint32_t aIndex,
+ GamepadMappingType aMapping,
+ uint32_t aNumButtons, uint32_t aNumAxes);
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+ NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(Gamepad)
+
+ void SetConnected(bool aConnected);
+ void SetButton(uint32_t aButton, bool aPressed, double aValue);
+ void SetAxis(uint32_t aAxis, double aValue);
+ void SetIndex(uint32_t aIndex);
+ void SetPose(const GamepadPoseState& aPose);
+
+ // Make the state of this gamepad equivalent to other.
+ void SyncState(Gamepad* aOther);
+
+ // Return a new Gamepad containing the same data as this object,
+ // parented to aParent.
+ already_AddRefed<Gamepad> Clone(nsISupports* aParent);
+
+ nsISupports* GetParentObject() const
+ {
+ return mParent;
+ }
+
+ virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+ void GetId(nsAString& aID) const
+ {
+ aID = mID;
+ }
+
+ DOMHighResTimeStamp Timestamp() const
+ {
+ return mTimestamp;
+ }
+
+ GamepadMappingType Mapping()
+ {
+ return mMapping;
+ }
+
+ bool Connected() const
+ {
+ return mConnected;
+ }
+
+ uint32_t Index() const
+ {
+ return mIndex;
+ }
+
+ void GetButtons(nsTArray<RefPtr<GamepadButton>>& aButtons) const
+ {
+ aButtons = mButtons;
+ }
+
+ void GetAxes(nsTArray<double>& aAxes) const
+ {
+ aAxes = mAxes;
+ }
+
+ GamepadPose* GetPose() const
+ {
+ return mPose;
+ }
+
+private:
+ virtual ~Gamepad() {}
+ void UpdateTimestamp();
+
+protected:
+ nsCOMPtr<nsISupports> mParent;
+ nsString mID;
+ uint32_t mIndex;
+
+ // The mapping in use.
+ GamepadMappingType mMapping;
+
+ // true if this gamepad is currently connected.
+ bool mConnected;
+
+ // Current state of buttons, axes.
+ nsTArray<RefPtr<GamepadButton>> mButtons;
+ nsTArray<double> mAxes;
+ DOMHighResTimeStamp mTimestamp;
+ RefPtr<GamepadPose> mPose;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_gamepad_Gamepad_h