third_party/WebKit/Source/core/dom/CompositorProxy.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CompositorProxy_h
   6 #define CompositorProxy_h
   7
   8 #include "bindings/core/v8/ScriptWrappable.h"
   9 #include "core/dom/DOMMatrix.h"
  10 #include "core/dom/Element.h"
  11 #include "platform/heap/Handle.h"
  12 #include "wtf/PassOwnPtr.h"
  13 #include "wtf/PassRefPtr.h"
  14 #include "wtf/RefCounted.h"
  15 #include "wtf/text/WTFString.h"
  16
  17 namespace blink {
  18
  19 class DOMMatrix;
  20 class ExceptionState;
  21 class ExecutionContext;
  22
  23 class CompositorProxy final : public GarbageCollectedFinalized<CompositorProxy>, public ScriptWrappable {
  24     DEFINE_WRAPPERTYPEINFO();
  25 public:
  26     static CompositorProxy* create(ExecutionContext*, Element*, const Vector<String>& attributeArray, ExceptionState&);
  27     static CompositorProxy* create(uint64_t element, uint32_t attributeFlags);
  28     virtual ~CompositorProxy();
  29
  30     enum class Attributes {
  31         NONE        = 0,
  32         OPACITY     = 1 << 0,
  33         SCROLL_LEFT = 1 << 1,
  34         SCROLL_TOP  = 1 << 2,
  35         TOUCH       = 1 << 3,
  36         TRANSFORM   = 1 << 4,
  37     };
  38
  39     DEFINE_INLINE_TRACE()
  40     {
  41         visitor->trace(m_transform);
  42     }
  43
  44     uint64_t elementId() const { return m_elementId; }
  45     uint32_t bitfieldsSupported() const { return m_bitfieldsSupported; }
  46     bool supports(const String& attribute) const;
  47
  48     bool connected() const { return m_connected; }
  49     void disconnect();
  50
  51     double opacity(ExceptionState&) const;
  52     double scrollLeft(ExceptionState&) const;
  53     double scrollTop(ExceptionState&) const;
  54     DOMMatrix* transform(ExceptionState&) const;
  55
  56     void setOpacity(double, ExceptionState&);
  57     void setScrollLeft(double, ExceptionState&);
  58     void setScrollTop(double, ExceptionState&);
  59     void setTransform(DOMMatrix*, ExceptionState&);
  60
  61 protected:
  62     CompositorProxy(Element&, const Vector<String>& attributeArray);
  63     CompositorProxy(uint64_t element, uint32_t attributeFlags);
  64
  65 private:
  66     bool raiseExceptionIfNotMutable(Attributes, ExceptionState&) const;
  67
  68     const uint64_t m_elementId = 0;
  69     const uint32_t m_bitfieldsSupported = 0;
  70     uint32_t m_mutatedAttributes = 0;
  71
  72     double m_opacity = 0;
  73     double m_scrollLeft = 0;
  74     double m_scrollTop = 0;
  75     Member<DOMMatrix> m_transform;
  76
  77     bool m_connected = true;
  78 };
  79
  80 } // namespace blink
  81
  82 #endif // CompositorProxy_h