dom/mathml/nsMathMLElement.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef nsMathMLElement_h
   7 #define nsMathMLElement_h
   8
   9 #include "mozilla/Attributes.h"
  10 #include "mozilla/dom/ElementInlines.h"
  11 #include "nsMappedAttributeElement.h"
  12 #include "nsIDOMElement.h"
  13 #include "Link.h"
  14 #include "mozilla/dom/DOMRect.h"
  15
  16 class nsCSSValue;
  17
  18 typedef nsMappedAttributeElement nsMathMLElementBase;
  19
  20 namespace mozilla {
  21 class EventChainPostVisitor;
  22 class EventChainPreVisitor;
  23 } // namespace mozilla
  24
  25 /*
  26  * The base class for MathML elements.
  27  */
  28 class nsMathMLElement MOZ_FINAL : public nsMathMLElementBase,
  29                                   public nsIDOMElement,
  30                                   public mozilla::dom::Link
  31 {
  32 public:
  33   explicit nsMathMLElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
  34   explicit nsMathMLElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
  35
  36   // Implementation of nsISupports is inherited from nsMathMLElementBase
  37   NS_DECL_ISUPPORTS_INHERITED
  38
  39   // Forward implementations of parent interfaces of nsMathMLElement to
  40   // our base class
  41   NS_FORWARD_NSIDOMNODE_TO_NSINODE
  42   NS_FORWARD_NSIDOMELEMENT_TO_GENERIC
  43
  44   nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
  45                       nsIContent* aBindingParent,
  46                       bool aCompileEventHandlers) MOZ_OVERRIDE;
  47   virtual void UnbindFromTree(bool aDeep = true,
  48                               bool aNullParent = true) MOZ_OVERRIDE;
  49
  50   virtual bool ParseAttribute(int32_t aNamespaceID,
  51                                 nsIAtom* aAttribute,
  52                                 const nsAString& aValue,
  53                                 nsAttrValue& aResult) MOZ_OVERRIDE;
  54
  55   NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const MOZ_OVERRIDE;
  56   virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const MOZ_OVERRIDE;
  57
  58   enum {
  59     PARSE_ALLOW_UNITLESS = 0x01, // unitless 0 will be turned into 0px
  60     PARSE_ALLOW_NEGATIVE = 0x02,
  61     PARSE_SUPPRESS_WARNINGS = 0x04,
  62     CONVERT_UNITLESS_TO_PERCENT = 0x08
  63   };
  64   static bool ParseNamedSpaceValue(const nsString& aString,
  65                                    nsCSSValue&     aCSSValue,
  66                                    uint32_t        aFlags);
  67
  68   static bool ParseNumericValue(const nsString& aString,
  69                                 nsCSSValue&     aCSSValue,
  70                                 uint32_t        aFlags,
  71                                 nsIDocument*    aDocument);
  72
  73   static void MapMathMLAttributesInto(const nsMappedAttributes* aAttributes,
  74                                       nsRuleData* aRuleData);
  75
  76   virtual nsresult PreHandleEvent(
  77                      mozilla::EventChainPreVisitor& aVisitor) MOZ_OVERRIDE;
  78   virtual nsresult PostHandleEvent(
  79                      mozilla::EventChainPostVisitor& aVisitor) MOZ_OVERRIDE;
  80   nsresult Clone(mozilla::dom::NodeInfo*, nsINode**) const MOZ_OVERRIDE;
  81   virtual mozilla::EventStates IntrinsicState() const MOZ_OVERRIDE;
  82   virtual bool IsNodeOfType(uint32_t aFlags) const MOZ_OVERRIDE;
  83
  84   // Set during reflow as necessary. Does a style change notification,
  85   // aNotify must be true.
  86   void SetIncrementScriptLevel(bool aIncrementScriptLevel, bool aNotify);
  87   bool GetIncrementScriptLevel() const {
  88     return mIncrementScriptLevel;
  89   }
  90
  91   virtual bool IsFocusableInternal(int32_t* aTabIndex, bool aWithMouse) MOZ_OVERRIDE;
  92   virtual bool IsLink(nsIURI** aURI) const MOZ_OVERRIDE;
  93   virtual void GetLinkTarget(nsAString& aTarget) MOZ_OVERRIDE;
  94   virtual already_AddRefed<nsIURI> GetHrefURI() const MOZ_OVERRIDE;
  95   nsresult SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
  96                    const nsAString& aValue, bool aNotify)
  97   {
  98     return SetAttr(aNameSpaceID, aName, nullptr, aValue, aNotify);
  99   }
 100   virtual nsresult SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
 101                            nsIAtom* aPrefix, const nsAString& aValue,
 102                            bool aNotify) MOZ_OVERRIDE;
 103   virtual nsresult UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
 104                              bool aNotify) MOZ_OVERRIDE;
 105
 106   virtual nsIDOMNode* AsDOMNode() MOZ_OVERRIDE { return this; }
 107
 108 protected:
 109   virtual ~nsMathMLElement() {}
 110
 111   virtual JSObject* WrapNode(JSContext *aCx) MOZ_OVERRIDE;
 112
 113 private:
 114   bool mIncrementScriptLevel;
 115 };
 116
 117 #endif // nsMathMLElement_h