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295f920116
I wrote a script to do this which is attached to the bug. TBR=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/736373003
100 lines
3.7 KiB
C++
100 lines
3.7 KiB
C++
/*
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* Copyright (C) 2013 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_CORE_EVENTS_EVENTPATH_H_
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#define SKY_ENGINE_CORE_EVENTS_EVENTPATH_H_
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#include "sky/engine/core/events/NodeEventContext.h"
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#include "sky/engine/core/events/TreeScopeEventContext.h"
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#include "sky/engine/platform/heap/Handle.h"
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#include "sky/engine/wtf/HashMap.h"
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#include "sky/engine/wtf/Vector.h"
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namespace blink {
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class Event;
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class EventTarget;
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class Node;
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class TouchEvent;
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class TouchList;
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class TreeScope;
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class EventPath final {
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public:
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explicit EventPath(Event*);
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explicit EventPath(Node*);
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void resetWith(Node*);
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NodeEventContext& operator[](size_t index) { return m_nodeEventContexts[index]; }
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const NodeEventContext& operator[](size_t index) const { return m_nodeEventContexts[index]; }
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NodeEventContext& last() { return m_nodeEventContexts[size() - 1]; }
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bool isEmpty() const { return m_nodeEventContexts.isEmpty(); }
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size_t size() const { return m_nodeEventContexts.size(); }
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void adjustForRelatedTarget(Node*, EventTarget* relatedTarget);
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void adjustForTouchEvent(Node*, TouchEvent&);
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static EventTarget* eventTargetRespectingTargetRules(Node*);
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private:
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EventPath();
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NodeEventContext& at(size_t index) { return m_nodeEventContexts[index]; }
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void addNodeEventContext(Node*);
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void calculatePath();
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void calculateAdjustedTargets();
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void calculateTreeScopePrePostOrderNumbers();
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void shrink(size_t newSize) { m_nodeEventContexts.shrink(newSize); }
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void shrinkIfNeeded(const Node* target, const EventTarget* relatedTarget);
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void adjustTouchList(const Node*, const TouchList*, Vector<RawPtr<TouchList> > adjustedTouchList, const Vector<RawPtr<TreeScope> >& treeScopes);
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typedef HashMap<RawPtr<TreeScope>, RefPtr<TreeScopeEventContext> > TreeScopeEventContextMap;
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TreeScopeEventContext* ensureTreeScopeEventContext(Node* currentTarget, TreeScope*, TreeScopeEventContextMap&);
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typedef HashMap<RawPtr<TreeScope>, RawPtr<EventTarget> > RelatedTargetMap;
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static void buildRelatedNodeMap(const Node*, RelatedTargetMap&);
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static EventTarget* findRelatedNode(TreeScope*, RelatedTargetMap&);
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#if ENABLE(ASSERT)
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static void checkReachability(TreeScope&, TouchList&);
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#endif
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Vector<NodeEventContext, 64> m_nodeEventContexts;
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RawPtr<Node> m_node;
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RawPtr<Event> m_event;
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Vector<RefPtr<TreeScopeEventContext> > m_treeScopeEventContexts;
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};
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} // namespace
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#endif // SKY_ENGINE_CORE_EVENTS_EVENTPATH_H_
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