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The Tor Browser
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SVGAnimatedBoolean.h (2469B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef DOM_SVG_SVGANIMATEDBOOLEAN_H_
      8 #define DOM_SVG_SVGANIMATEDBOOLEAN_H_
      9 
     10 #include "mozilla/AlreadyAddRefed.h"
     11 #include "mozilla/SMILAttr.h"
     12 #include "mozilla/UniquePtr.h"
     13 #include "nsError.h"
     14 
     15 class nsAtom;
     16 
     17 namespace mozilla {
     18 
     19 class SMILValue;
     20 
     21 namespace dom {
     22 class DOMSVGAnimatedBoolean;
     23 class SVGAnimationElement;
     24 class SVGElement;
     25 }  // namespace dom
     26 
     27 class SVGAnimatedBoolean {
     28 public:
     29  friend class AutoChangeBooleanNotifier;
     30  using SVGElement = dom::SVGElement;
     31 
     32  void Init(uint8_t aAttrEnum = 0xff, bool aValue = false) {
     33    mAnimVal = mBaseVal = aValue;
     34    mAttrEnum = aAttrEnum;
     35    mIsAnimated = false;
     36  }
     37 
     38  nsresult SetBaseValueAtom(const nsAtom* aValue, SVGElement* aSVGElement);
     39  nsAtom* GetBaseValueAtom() const;
     40 
     41  void SetBaseValue(bool aValue, SVGElement* aSVGElement);
     42  bool GetBaseValue() const { return mBaseVal; }
     43 
     44  void SetAnimValue(bool aValue, SVGElement* aSVGElement);
     45  bool GetAnimValue() const { return mAnimVal; }
     46 
     47  already_AddRefed<dom::DOMSVGAnimatedBoolean> ToDOMAnimatedBoolean(
     48      SVGElement* aSVGElement);
     49  UniquePtr<SMILAttr> ToSMILAttr(SVGElement* aSVGElement);
     50 
     51 private:
     52  bool mAnimVal;
     53  bool mBaseVal;
     54  bool mIsAnimated;
     55  uint8_t mAttrEnum;  // element specified tracking for attribute
     56 
     57 public:
     58  struct SMILBool : public SMILAttr {
     59   public:
     60    SMILBool(SVGAnimatedBoolean* aVal, SVGElement* aSVGElement)
     61        : mVal(aVal), mSVGElement(aSVGElement) {}
     62 
     63    // These will stay alive because a SMILAttr only lives as long
     64    // as the Compositing step, and DOM elements don't get a chance to
     65    // die during that.
     66    SVGAnimatedBoolean* mVal;
     67    SVGElement* mSVGElement;
     68 
     69    // SMILAttr methods
     70    nsresult ValueFromString(const nsAString& aStr,
     71                             const dom::SVGAnimationElement* aSrcElement,
     72                             SMILValue& aValue,
     73                             bool& aPreventCachingOfSandwich) const override;
     74    SMILValue GetBaseValue() const override;
     75    void ClearAnimValue() override;
     76    nsresult SetAnimValue(const SMILValue& aValue) override;
     77  };
     78 };
     79 
     80 }  // namespace mozilla
     81 
     82 #endif  // DOM_SVG_SVGANIMATEDBOOLEAN_H_