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      1 /*
      2  * Copyright (C) 2012 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef HTMLDialogElement_h
     27 #define HTMLDialogElement_h
     28 
     29 #include "core/html/HTMLElement.h"
     30 
     31 namespace WebCore {
     32 
     33 class Document;
     34 class ExceptionState;
     35 class QualifiedName;
     36 
     37 class HTMLDialogElement FINAL : public HTMLElement {
     38 public:
     39     DECLARE_NODE_FACTORY(HTMLDialogElement);
     40 
     41     void close(const String& returnValue, ExceptionState&);
     42     void closeDialog(const String& returnValue = String());
     43     void show();
     44     void showModal(ExceptionState&);
     45     virtual void removedFrom(ContainerNode*) OVERRIDE;
     46 
     47     // NotCentered means do not center the dialog. Centered means the dialog has
     48     // been centered and centeredPosition() is set. NeedsCentering means attempt
     49     // to center on the next layout, then set to Centered or NotCentered.
     50     enum CenteringMode { NotCentered, Centered, NeedsCentering };
     51     CenteringMode centeringMode() const { return m_centeringMode; }
     52     LayoutUnit centeredPosition() const
     53     {
     54         ASSERT(m_centeringMode == Centered);
     55         return m_centeredPosition;
     56     }
     57     void setCentered(LayoutUnit centeredPosition);
     58     void setNotCentered();
     59 
     60     String returnValue() const { return m_returnValue; }
     61     void setReturnValue(const String& returnValue) { m_returnValue = returnValue; }
     62 
     63 private:
     64     explicit HTMLDialogElement(Document&);
     65 
     66     virtual bool isPresentationAttribute(const QualifiedName&) const OVERRIDE;
     67     virtual void defaultEventHandler(Event*) OVERRIDE;
     68 
     69     void forceLayoutForCentering();
     70 
     71     CenteringMode m_centeringMode;
     72     LayoutUnit m_centeredPosition;
     73     String m_returnValue;
     74 };
     75 
     76 } // namespace WebCore
     77 
     78 #endif
     79