tor-browser

The Tor Browser
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GamepadTouch.cpp (2296B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
      5 * You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "mozilla/dom/GamepadTouch.h"
      8 
      9 #include "mozilla/HoldDropJSObjects.h"
     10 #include "mozilla/dom/GamepadManager.h"
     11 #include "mozilla/dom/Promise.h"
     12 #include "mozilla/dom/TypedArray.h"
     13 
     14 namespace mozilla::dom {
     15 
     16 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_WITH_JS_MEMBERS(GamepadTouch, (mParent),
     17                                                      (mPosition,
     18                                                       mSurfaceDimensions))
     19 
     20 GamepadTouch::GamepadTouch(nsISupports* aParent)
     21    : mParent(aParent), mPosition(nullptr), mSurfaceDimensions(nullptr) {
     22  mozilla::HoldJSObjects(this);
     23  mTouchState = GamepadTouchState();
     24 }
     25 
     26 GamepadTouch::~GamepadTouch() { mozilla::DropJSObjects(this); }
     27 
     28 /* virtual */ JSObject* GamepadTouch::WrapObject(
     29    JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
     30  return GamepadTouch_Binding::Wrap(aCx, this, aGivenProto);
     31 }
     32 
     33 void GamepadTouch::GetPosition(JSContext* aCx,
     34                               JS::MutableHandle<JSObject*> aRetval,
     35                               ErrorResult& aRv) {
     36  mPosition = Float32Array::Create(aCx, this, mTouchState.position, aRv);
     37  if (aRv.Failed()) {
     38    return;
     39  }
     40 
     41  aRetval.set(mPosition);
     42 }
     43 
     44 void GamepadTouch::GetSurfaceDimensions(JSContext* aCx,
     45                                        JS::MutableHandle<JSObject*> aRetval,
     46                                        ErrorResult& aRv) {
     47  if (mTouchState.isSurfaceDimensionsValid) {
     48    mSurfaceDimensions =
     49        Uint32Array::Create(aCx, this, mTouchState.surfaceDimensions, aRv);
     50  } else {
     51    mSurfaceDimensions = Uint32Array::Create(
     52        aCx, this, std::size(mTouchState.surfaceDimensions), aRv);
     53  }
     54 
     55  if (!mSurfaceDimensions) {
     56    return;
     57  }
     58 
     59  aRetval.set(mSurfaceDimensions);
     60 }
     61 
     62 void GamepadTouch::SetTouchState(const GamepadTouchState& aTouch) {
     63  mTouchState = aTouch;
     64 }
     65 
     66 void GamepadTouch::Set(const GamepadTouch* aOther) {
     67  MOZ_ASSERT(aOther);
     68  mTouchState = aOther->mTouchState;
     69 }
     70 
     71 }  // namespace mozilla::dom