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      1 /*
      2  * Copyright (C) 2006 Apple Computer, Inc.
      3  * Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/
      4  * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Library General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Library General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Library General Public License
     17  * along with this library; see the file COPYING.LIB.  If not, write to
     18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  * Boston, MA 02110-1301, USA.
     20  *
     21 */
     22 
     23 #ifndef HitTestRequest_h
     24 #define HitTestRequest_h
     25 
     26 namespace WebCore {
     27 
     28 class HitTestRequest {
     29 public:
     30     enum RequestType {
     31         ReadOnly = 1 << 1,
     32         Active = 1 << 2,
     33         Move = 1 << 3,
     34         Release = 1 << 4,
     35         IgnoreClipping = 1 << 5,
     36         SVGClipContent = 1 << 6,
     37         TouchEvent = 1 << 7,
     38         // Deprecated. Instead of this, callers should call HitTestResult::setToNodesInDocumentTreeScope() explicitly.
     39         ConfusingAndOftenMisusedDisallowShadowContent = 1 << 8,
     40         AllowFrameScrollbars = 1 << 9,
     41         AllowChildFrameContent = 1 << 10,
     42         ChildFrameHitTest = 1 << 11,
     43         IgnorePointerEventsNone = 1 << 12
     44     };
     45 
     46     typedef unsigned HitTestRequestType;
     47 
     48     HitTestRequest(HitTestRequestType requestType)
     49         : m_requestType(requestType)
     50     {
     51     }
     52 
     53     bool readOnly() const { return m_requestType & ReadOnly; }
     54     bool active() const { return m_requestType & Active; }
     55     bool move() const { return m_requestType & Move; }
     56     bool release() const { return m_requestType & Release; }
     57     bool ignoreClipping() const { return m_requestType & IgnoreClipping; }
     58     bool svgClipContent() const { return m_requestType & SVGClipContent; }
     59     bool touchEvent() const { return m_requestType & TouchEvent; }
     60     bool mouseEvent() const { return !touchEvent(); }
     61     bool disallowsShadowContent() const { return m_requestType & ConfusingAndOftenMisusedDisallowShadowContent; }
     62     bool allowsFrameScrollbars() const { return m_requestType & AllowFrameScrollbars; }
     63     bool allowsChildFrameContent() const { return m_requestType & AllowChildFrameContent; }
     64     bool isChildFrameHitTest() const { return m_requestType & ChildFrameHitTest; }
     65     bool ignorePointerEventsNone() const { return m_requestType & IgnorePointerEventsNone; }
     66 
     67     // Convenience functions
     68     bool touchMove() const { return move() && touchEvent(); }
     69     bool touchRelease() const { return release() && touchEvent(); }
     70 
     71     HitTestRequestType type() const { return m_requestType; }
     72 
     73 private:
     74     HitTestRequestType m_requestType;
     75 };
     76 
     77 } // namespace WebCore
     78 
     79 #endif // HitTestRequest_h
     80