MockHitTester.h - mozsearch

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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_layers_MockHitTester_h

#define mozilla_layers_MockHitTester_h

#include "apz/src/IAPZHitTester.h"

#include "mozilla/gfx/CompositorHitTestInfo.h"

#include "mozilla/layers/LayersTypes.h"

#include <queue>

namespace mozilla::layers {

// IAPZHitTester implementation for APZ gtests.

// This does not actually perform hit-testing, it just allows

// the test code to specify the expected hit test results.

class MockHitTester final : public IAPZHitTester {

 public:

  HitTestResult GetAPZCAtPoint(

      const ScreenPoint& aHitTestPoint,

      const RecursiveMutexAutoLock& aProofOfTreeLock) override;

  // Queue a hit test result whose target APZC is the APZC

  // with guid |aGuid|, and the provided hit test flags.

  void QueueHitResult(ScrollableLayerGuid aGuid,

                      gfx::CompositorHitTestInfo aHitInfo);

  // Queue a hit test result whose target is the scrollbar of the APZC

  // with scroll id |aScrollId| in the direction specified by |aDirection|.

  void QueueScrollbarThumbHitResult(ScrollableLayerGuid::ViewID aScrollId,

                                    ScrollDirection aDirection);

 private:

  std::queue<HitTestResult> mQueuedResults;

};

}  // namespace mozilla::layers

#endif  // define mozilla_layers_MockHitTester_h