michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "Gamepad.h"
michael@0: #include "nsAutoPtr.h"
michael@0: #include "nsTArray.h"
michael@0: #include "nsVariant.h"
michael@0: #include "mozilla/dom/GamepadBinding.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace dom {
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTING_ADDREF(Gamepad)
michael@0: NS_IMPL_CYCLE_COLLECTING_RELEASE(Gamepad)
michael@0: 
michael@0: NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Gamepad)
michael@0:   NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
michael@0:   NS_INTERFACE_MAP_ENTRY(nsISupports)
michael@0: NS_INTERFACE_MAP_END
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_2(Gamepad, mParent, mButtons)
michael@0: 
michael@0: Gamepad::Gamepad(nsISupports* aParent,
michael@0:                  const nsAString& aID, uint32_t aIndex,
michael@0:                  GamepadMappingType aMapping,
michael@0:                  uint32_t aNumButtons, uint32_t aNumAxes)
michael@0:   : mParent(aParent),
michael@0:     mID(aID),
michael@0:     mIndex(aIndex),
michael@0:     mMapping(aMapping),
michael@0:     mConnected(true),
michael@0:     mButtons(aNumButtons),
michael@0:     mAxes(aNumAxes)
michael@0: {
michael@0:   SetIsDOMBinding();
michael@0:   for (unsigned i = 0; i < aNumButtons; i++) {
michael@0:     mButtons.InsertElementAt(i, new GamepadButton(mParent));
michael@0:   }
michael@0:   mAxes.InsertElementsAt(0, aNumAxes, 0.0f);
michael@0: }
michael@0: 
michael@0: void
michael@0: Gamepad::SetIndex(uint32_t aIndex)
michael@0: {
michael@0:   mIndex = aIndex;
michael@0: }
michael@0: 
michael@0: void
michael@0: Gamepad::SetConnected(bool aConnected)
michael@0: {
michael@0:   mConnected = aConnected;
michael@0: }
michael@0: 
michael@0: void
michael@0: Gamepad::SetButton(uint32_t aButton, bool aPressed, double aValue)
michael@0: {
michael@0:   MOZ_ASSERT(aButton < mButtons.Length());
michael@0:   mButtons[aButton]->SetPressed(aPressed);
michael@0:   mButtons[aButton]->SetValue(aValue);
michael@0: }
michael@0: 
michael@0: void
michael@0: Gamepad::SetAxis(uint32_t aAxis, double aValue)
michael@0: {
michael@0:   MOZ_ASSERT(aAxis < mAxes.Length());
michael@0:   if (mAxes[aAxis] != aValue) {
michael@0:     mAxes[aAxis] = aValue;
michael@0:     GamepadBinding::ClearCachedAxesValue(this);
michael@0:   }
michael@0: }
michael@0: 
michael@0: void
michael@0: Gamepad::SyncState(Gamepad* aOther)
michael@0: {
michael@0:   if (mButtons.Length() != aOther->mButtons.Length() ||
michael@0:       mAxes.Length() != aOther->mAxes.Length()) {
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   mConnected = aOther->mConnected;
michael@0:   for (uint32_t i = 0; i < mButtons.Length(); ++i) {
michael@0:     mButtons[i]->SetPressed(aOther->mButtons[i]->Pressed());
michael@0:     mButtons[i]->SetValue(aOther->mButtons[i]->Value());
michael@0:   }
michael@0:   bool changed = false;
michael@0:   for (uint32_t i = 0; i < mAxes.Length(); ++i) {
michael@0:     changed = changed || (mAxes[i] != aOther->mAxes[i]);
michael@0:     mAxes[i] = aOther->mAxes[i];
michael@0:   }
michael@0:   if (changed) {
michael@0:     GamepadBinding::ClearCachedAxesValue(this);
michael@0:   }
michael@0: }
michael@0: 
michael@0: already_AddRefed<Gamepad>
michael@0: Gamepad::Clone(nsISupports* aParent)
michael@0: {
michael@0:   nsRefPtr<Gamepad> out =
michael@0:     new Gamepad(aParent, mID, mIndex, mMapping,
michael@0:                 mButtons.Length(), mAxes.Length());
michael@0:   out->SyncState(this);
michael@0:   return out.forget();
michael@0: }
michael@0: 
michael@0: /* virtual */ JSObject*
michael@0: Gamepad::WrapObject(JSContext* aCx)
michael@0: {
michael@0:   return GamepadBinding::Wrap(aCx, this);
michael@0: }
michael@0: 
michael@0: } // namespace dom
michael@0: } // namespace mozilla