third_party/WebKit/Source/core/html/HTMLProgressElement.h

   1 /*
   2  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public License
  15  * along with this library; see the file COPYING.LIB.  If not, write to
  16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA 02110-1301, USA.
  18  *
  19  */
  20
  21 #ifndef HTMLProgressElement_h
  22 #define HTMLProgressElement_h
  23
  24 #include "core/CoreExport.h"
  25 #include "core/html/LabelableElement.h"
  26
  27 namespace blink {
  28
  29 class ProgressValueElement;
  30 class LayoutProgress;
  31
  32 class CORE_EXPORT HTMLProgressElement final : public LabelableElement {
  33     DEFINE_WRAPPERTYPEINFO();
  34 public:
  35     static const double IndeterminatePosition;
  36     static const double InvalidPosition;
  37
  38     static PassRefPtrWillBeRawPtr<HTMLProgressElement> create(Document&);
  39
  40     double value() const;
  41     void setValue(double);
  42
  43     double max() const;
  44     void setMax(double);
  45
  46     double position() const;
  47
  48     bool canContainRangeEndPoint() const override { return false; }
  49
  50     DECLARE_VIRTUAL_TRACE();
  51
  52 private:
  53     explicit HTMLProgressElement(Document&);
  54     ~HTMLProgressElement() override;
  55
  56     bool areAuthorShadowsAllowed() const override { return false; }
  57     void willAddFirstAuthorShadowRoot() override;
  58     bool shouldAppearIndeterminate() const override;
  59     bool supportLabels() const override { return true; }
  60
  61     LayoutObject* createLayoutObject(const ComputedStyle&) override;
  62     LayoutProgress* layoutProgress() const;
  63
  64     void parseAttribute(const QualifiedName&, const AtomicString&) override;
  65
  66     void attach(const AttachContext& = AttachContext()) override;
  67
  68     void didElementStateChange();
  69     void didAddUserAgentShadowRoot(ShadowRoot&) override;
  70     bool isDeterminate() const;
  71
  72     RawPtrWillBeMember<ProgressValueElement> m_value;
  73 };
  74
  75 } // namespace blink
  76
  77 #endif // HTMLProgressElement_h