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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
#include "IAPZHitTester.h"
#include "APZCTreeManager.h"
#include "AsyncPanZoomController.h"
namespace mozilla {
namespace layers {
IAPZHitTester::HitTestResult IAPZHitTester::CloneHitTestResult(
RecursiveMutexAutoLock& aProofOfTreeLock,
const IAPZHitTester::HitTestResult& aHitTestResult) const {
HitTestResult result;
result.mTargetApzc = aHitTestResult.mTargetApzc;
result.mHitResult = aHitTestResult.mHitResult;
result.mLayersId = aHitTestResult.mLayersId;
result.mFixedPosSides = aHitTestResult.mFixedPosSides;
result.mHitOverscrollGutter = aHitTestResult.mHitOverscrollGutter;
RefPtr<HitTestingTreeNode> scrollbarNode =
aHitTestResult.mScrollbarNode.Get(aProofOfTreeLock);
RefPtr<HitTestingTreeNode> node = aHitTestResult.mNode.Get(aProofOfTreeLock);
if (aHitTestResult.mScrollbarNode) {
InitializeHitTestingTreeNodeAutoLock(result.mScrollbarNode,
aProofOfTreeLock, scrollbarNode);
}
if (aHitTestResult.mNode) {
InitializeHitTestingTreeNodeAutoLock(result.mNode, aProofOfTreeLock, node);
}
return result;
}
RecursiveMutex& IAPZHitTester::GetTreeLock() { return mTreeManager->mTreeLock; }
LayersId IAPZHitTester::GetRootLayersId() const {
return mTreeManager->mRootLayersId;
}
HitTestingTreeNode* IAPZHitTester::GetRootNode() const {
mTreeManager->mTreeLock.AssertCurrentThreadIn();
return mTreeManager->mRootNode;
}
HitTestingTreeNode* IAPZHitTester::FindRootNodeForLayersId(
LayersId aLayersId) const {
return mTreeManager->FindRootNodeForLayersId(aLayersId);
}
AsyncPanZoomController* IAPZHitTester::FindRootApzcForLayersId(
LayersId aLayersId) const {
HitTestingTreeNode* resultNode = FindRootNodeForLayersId(aLayersId);
return resultNode ? resultNode->GetApzc() : nullptr;
}
already_AddRefed<HitTestingTreeNode> IAPZHitTester::GetTargetNode(
const ScrollableLayerGuid& aGuid,
ScrollableLayerGuid::Comparator aComparator) {
// Acquire the tree lock so that derived classes can call this from
// methods other than GetAPZCAtPoint().
RecursiveMutexAutoLock lock(mTreeManager->mTreeLock);
return mTreeManager->GetTargetNode(aGuid, aComparator);
}
void IAPZHitTester::InitializeHitTestingTreeNodeAutoLock(
HitTestingTreeNodeAutoLock& aAutoLock,
const RecursiveMutexAutoLock& aProofOfTreeLock,
RefPtr<HitTestingTreeNode>& aNode) const {
aAutoLock.Initialize(aProofOfTreeLock, aNode.forget(),
mTreeManager->mTreeLock);
}
} // namespace layers
} // namespace mozilla