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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/svg/nsSVGNumber2.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/svg/nsSVGNumber2.h')
-rw-r--r--dom/svg/nsSVGNumber2.h123
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diff --git a/dom/svg/nsSVGNumber2.h b/dom/svg/nsSVGNumber2.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef __NS_SVGNUMBER2_H__
+#define __NS_SVGNUMBER2_H__
+
+#include "nsCycleCollectionParticipant.h"
+#include "nsError.h"
+#include "nsISMILAttr.h"
+#include "nsMathUtils.h"
+#include "nsSVGElement.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/FloatingPoint.h"
+#include "mozilla/dom/SVGAnimatedNumber.h"
+
+class nsSMILValue;
+
+namespace mozilla {
+namespace dom {
+class SVGAnimationElement;
+} // namespace dom
+} // namespace mozilla
+
+class nsSVGNumber2
+{
+
+public:
+ void Init(uint8_t aAttrEnum = 0xff, float aValue = 0) {
+ mAnimVal = mBaseVal = aValue;
+ mAttrEnum = aAttrEnum;
+ mIsAnimated = false;
+ mIsBaseSet = false;
+ }
+
+ nsresult SetBaseValueString(const nsAString& aValue,
+ nsSVGElement *aSVGElement);
+ void GetBaseValueString(nsAString& aValue);
+
+ void SetBaseValue(float aValue, nsSVGElement *aSVGElement);
+ float GetBaseValue() const
+ { return mBaseVal; }
+ void SetAnimValue(float aValue, nsSVGElement *aSVGElement);
+ float GetAnimValue() const
+ { return mAnimVal; }
+
+ // Returns true if the animated value of this number has been explicitly
+ // set (either by animation, or by taking on the base value which has been
+ // explicitly set by markup or a DOM call), false otherwise.
+ // If this returns false, the animated value is still valid, that is,
+ // useable, and represents the default base value of the attribute.
+ bool IsExplicitlySet() const
+ { return mIsAnimated || mIsBaseSet; }
+
+ already_AddRefed<mozilla::dom::SVGAnimatedNumber>
+ ToDOMAnimatedNumber(nsSVGElement* aSVGElement);
+ // Returns a new nsISMILAttr object that the caller must delete
+ nsISMILAttr* ToSMILAttr(nsSVGElement* aSVGElement);
+
+private:
+
+ float mAnimVal;
+ float mBaseVal;
+ uint8_t mAttrEnum; // element specified tracking for attribute
+ bool mIsAnimated;
+ bool mIsBaseSet;
+
+public:
+ struct DOMAnimatedNumber final : public mozilla::dom::SVGAnimatedNumber
+ {
+ DOMAnimatedNumber(nsSVGNumber2* aVal, nsSVGElement* aSVGElement)
+ : mozilla::dom::SVGAnimatedNumber(aSVGElement)
+ , mVal(aVal)
+ {}
+ virtual ~DOMAnimatedNumber();
+
+ nsSVGNumber2* mVal; // kept alive because it belongs to content
+
+ virtual float BaseVal() override
+ {
+ return mVal->GetBaseValue();
+ }
+ virtual void SetBaseVal(float aValue) override
+ {
+ MOZ_ASSERT(mozilla::IsFinite(aValue));
+ mVal->SetBaseValue(aValue, mSVGElement);
+ }
+
+ // Script may have modified animation parameters or timeline -- DOM getters
+ // need to flush any resample requests to reflect these modifications.
+ virtual float AnimVal() override
+ {
+ mSVGElement->FlushAnimations();
+ return mVal->GetAnimValue();
+ }
+ };
+
+ struct SMILNumber : public nsISMILAttr
+ {
+ public:
+ SMILNumber(nsSVGNumber2* aVal, nsSVGElement* aSVGElement)
+ : mVal(aVal), mSVGElement(aSVGElement) {}
+
+ // These will stay alive because a nsISMILAttr only lives as long
+ // as the Compositing step, and DOM elements don't get a chance to
+ // die during that.
+ nsSVGNumber2* mVal;
+ nsSVGElement* mSVGElement;
+
+ // nsISMILAttr methods
+ virtual nsresult ValueFromString(const nsAString& aStr,
+ const mozilla::dom::SVGAnimationElement* aSrcElement,
+ nsSMILValue& aValue,
+ bool& aPreventCachingOfSandwich) const override;
+ virtual nsSMILValue GetBaseValue() const override;
+ virtual void ClearAnimValue() override;
+ virtual nsresult SetAnimValue(const nsSMILValue& aValue) override;
+ };
+};
+
+#endif //__NS_SVGNUMBER2_H__