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Diffstat (limited to '')
-rw-r--r-- | gfx/layers/apz/src/IAPZHitTester.cpp | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/gfx/layers/apz/src/IAPZHitTester.cpp b/gfx/layers/apz/src/IAPZHitTester.cpp new file mode 100644 index 0000000000..884efe97e8 --- /dev/null +++ b/gfx/layers/apz/src/IAPZHitTester.cpp @@ -0,0 +1,78 @@ +/* -*- 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 "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; +} + +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 |