TestAPZBridge.cpp - mozsearch

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/* 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 "gtest/gtest.h"

#include "mozilla/MouseEvents.h"

#include "mozilla/layers/APZBridgeChild.h"

#include "mozilla/layers/APZCTreeManagerChild.h"

#include "mozilla/layers/APZThreadUtils.h"

#include "nsThreadUtils.h"

using namespace mozilla;

using namespace mozilla::layers;

namespace {

class DestroyingAPZBridgeChild final : public APZBridgeChild {

 public:

  DestroyingAPZBridgeChild(APZCTreeManagerChild& aManager, bool& aIsDestroyed)

      : APZBridgeChild(0), mManager(aManager), mIsDestroyed(aIsDestroyed) {}

  APZEventResult ReceiveInputEvent(InputData& aEvent,

                                   InputBlockCallback&& aCallback) override {

    bool& isDestroyed = mIsDestroyed;

    mManager.Destroy();

    EXPECT_FALSE(isDestroyed);

    return APZEventResult();

 private:

  ~DestroyingAPZBridgeChild() override { mIsDestroyed = true; }

  APZCTreeManagerChild& mManager;

  bool& mIsDestroyed;

};

}  // namespace

class APZBridgeTester : public ::testing::Test {

 protected:

  void SetUp() override {

    APZThreadUtils::SetControllerThread(NS_GetCurrentThread());

  void TearDown() override { APZThreadUtils::SetControllerThread(nullptr); }

};

TEST_F(APZBridgeTester, DestroyOwnerDuringMouseInput) {

  bool isDestroyed = false;

  auto manager = MakeRefPtr<APZCTreeManagerChild>();

  manager->SetBridge(

      MakeRefPtr<DestroyingAPZBridgeChild>(*manager, isDestroyed));

  WidgetMouseEvent event(true, eMouseMove, nullptr, WidgetMouseEvent::eReal);

  EXPECT_EQ(manager->Bridge()->ReceiveInputEvent(event).GetStatus(),

            nsEventStatus_eIgnore);

  EXPECT_TRUE(isDestroyed);