FrameUniformityData.cpp

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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/. */

#include "FrameUniformityData.h"

#include "mozilla/TimeStamp.h"

#include "mozilla/dom/APZTestDataBinding.h"

#include "mozilla/dom/ToJSValue.h"

#include "nsTArray.h"

namespace mozilla {

namespace layers {

using namespace gfx;

bool FrameUniformityData::ToJS(JS::MutableHandle<JS::Value> aOutValue,

                               JSContext* aContext) {

  dom::FrameUniformityResults results;

  dom::Sequence<dom::FrameUniformity>& layers =

      results.mLayerUniformities.Construct();

  for (const auto& [layerAddr, uniformity] : mUniformities) {

    // FIXME: Make this infallible after bug 968520 is done.

    MOZ_ALWAYS_TRUE(layers.AppendElement(fallible));

    dom::FrameUniformity& entry = layers.LastElement();

    entry.mLayerAddress.Construct() = layerAddr;

    entry.mFrameUniformity.Construct() = uniformity;

  return dom::ToJSValue(aContext, results, aOutValue);

}  // namespace layers

}  // namespace mozilla