Add m-esr52 at 52.6.0

1 files changed, 209 insertions, 0 deletions

diff --git a/dom/svg/nsSVGLength2.h b/dom/svg/nsSVGLength2.h
new file mode 100644
index 000000000..d67bbdaad
--- /dev/null
+++ b/dom/svg/nsSVGLength2.h
@@ -0,0 +1,209 @@
+/* -*- 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_SVGLENGTH2_H__
+#define __NS_SVGLENGTH2_H__
+
+#include "mozilla/Attributes.h"
+#include "nsCoord.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsError.h"
+#include "nsIDOMSVGLength.h"
+#include "nsISMILAttr.h"
+#include "nsMathUtils.h"
+#include "nsSVGElement.h"
+#include "SVGContentUtils.h"
+#include "mozilla/gfx/Rect.h"
+
+class nsIFrame;
+class nsSMILValue;
+
+namespace mozilla {
+class DOMSVGLength;
+namespace dom {
+class SVGAnimatedLength;
+class SVGAnimationElement;
+class SVGSVGElement;
+} // namespace dom
+} // namespace mozilla
+
+namespace mozilla {
+namespace dom {
+
+class UserSpaceMetrics
+{
+public:
+  virtual ~UserSpaceMetrics() {}
+
+  virtual float GetEmLength() const = 0;
+  virtual float GetExLength() const = 0;
+  virtual float GetAxisLength(uint8_t aCtxType) const = 0;
+};
+
+class UserSpaceMetricsWithSize : public UserSpaceMetrics
+{
+public:
+  virtual gfx::Size GetSize() const = 0;
+  virtual float GetAxisLength(uint8_t aCtxType) const override;
+};
+
+class SVGElementMetrics : public UserSpaceMetrics
+{
+public:
+  explicit SVGElementMetrics(nsSVGElement* aSVGElement,
+                             mozilla::dom::SVGSVGElement* aCtx = nullptr);
+
+  virtual float GetEmLength() const override;
+  virtual float GetExLength() const override;
+  virtual float GetAxisLength(uint8_t aCtxType) const override;
+
+private:
+  bool EnsureCtx() const;
+
+  nsSVGElement* mSVGElement;
+  mutable mozilla::dom::SVGSVGElement* mCtx;
+};
+
+class NonSVGFrameUserSpaceMetrics : public UserSpaceMetricsWithSize
+{
+public:
+  explicit NonSVGFrameUserSpaceMetrics(nsIFrame* aFrame);
+
+  virtual float GetEmLength() const override;
+  virtual float GetExLength() const override;
+  virtual gfx::Size GetSize() const override;
+
+private:
+  nsIFrame* mFrame;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+class nsSVGLength2
+{
+  friend class mozilla::dom::SVGAnimatedLength;
+  friend class mozilla::DOMSVGLength;
+  typedef mozilla::dom::UserSpaceMetrics UserSpaceMetrics;
+public:
+  void Init(uint8_t aCtxType = SVGContentUtils::XY,
+            uint8_t aAttrEnum = 0xff,
+            float aValue = 0,
+            uint8_t aUnitType = nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER) {
+    mAnimVal = mBaseVal = aValue;
+    mSpecifiedUnitType = aUnitType;
+    mAttrEnum = aAttrEnum;
+    mCtxType = aCtxType;
+    mIsAnimated = false;
+    mIsBaseSet = false;
+  }
+
+  nsSVGLength2& operator=(const nsSVGLength2& aLength) {
+    mBaseVal = aLength.mBaseVal;
+    mAnimVal = aLength.mAnimVal;
+    mSpecifiedUnitType = aLength.mSpecifiedUnitType;
+    mIsAnimated = aLength.mIsAnimated;
+    mIsBaseSet = aLength.mIsBaseSet;
+    return *this;
+  }
+
+  nsresult SetBaseValueString(const nsAString& aValue,
+                              nsSVGElement *aSVGElement,
+                              bool aDoSetAttr);
+  void GetBaseValueString(nsAString& aValue) const;
+  void GetAnimValueString(nsAString& aValue) const;
+
+  float GetBaseValue(nsSVGElement* aSVGElement) const
+    { return mBaseVal / GetUnitScaleFactor(aSVGElement, mSpecifiedUnitType); }
+
+  float GetAnimValue(nsSVGElement* aSVGElement) const
+    { return mAnimVal / GetUnitScaleFactor(aSVGElement, mSpecifiedUnitType); }
+  float GetAnimValue(nsIFrame* aFrame) const
+    { return mAnimVal / GetUnitScaleFactor(aFrame, mSpecifiedUnitType); }
+  float GetAnimValue(mozilla::dom::SVGSVGElement* aCtx) const
+    { return mAnimVal / GetUnitScaleFactor(aCtx, mSpecifiedUnitType); }
+  float GetAnimValue(const UserSpaceMetrics& aMetrics) const
+    { return mAnimVal / GetUnitScaleFactor(aMetrics, mSpecifiedUnitType); }
+
+  uint8_t GetCtxType() const { return mCtxType; }
+  uint8_t GetSpecifiedUnitType() const { return mSpecifiedUnitType; }
+  bool IsPercentage() const
+    { return mSpecifiedUnitType == nsIDOMSVGLength::SVG_LENGTHTYPE_PERCENTAGE; }
+  float GetAnimValInSpecifiedUnits() const { return mAnimVal; }
+  float GetBaseValInSpecifiedUnits() const { return mBaseVal; }
+
+  float GetBaseValue(mozilla::dom::SVGSVGElement* aCtx) const
+    { return mBaseVal / GetUnitScaleFactor(aCtx, mSpecifiedUnitType); }
+
+  bool HasBaseVal() const {
+    return mIsBaseSet;
+  }
+  // Returns true if the animated value of this length 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::SVGAnimatedLength>
+  ToDOMAnimatedLength(nsSVGElement* aSVGElement);
+
+  // Returns a new nsISMILAttr object that the caller must delete
+  nsISMILAttr* ToSMILAttr(nsSVGElement* aSVGElement);
+
+private:
+  
+  float mAnimVal;
+  float mBaseVal;
+  uint8_t mSpecifiedUnitType;
+  uint8_t mAttrEnum; // element specified tracking for attribute
+  uint8_t mCtxType; // X, Y or Unspecified
+  bool mIsAnimated:1;
+  bool mIsBaseSet:1;
+
+  float GetUnitScaleFactor(nsIFrame *aFrame, uint8_t aUnitType) const;
+  float GetUnitScaleFactor(const UserSpaceMetrics& aMetrics, uint8_t aUnitType) const;
+  float GetUnitScaleFactor(nsSVGElement *aSVGElement, uint8_t aUnitType) const;
+  float GetUnitScaleFactor(mozilla::dom::SVGSVGElement *aCtx, uint8_t aUnitType) const;
+
+  // SetBaseValue and SetAnimValue set the value in user units
+  void SetBaseValue(float aValue, nsSVGElement *aSVGElement, bool aDoSetAttr);
+  void SetBaseValueInSpecifiedUnits(float aValue, nsSVGElement *aSVGElement,
+                                    bool aDoSetAttr);
+  void SetAnimValue(float aValue, nsSVGElement *aSVGElement);
+  void SetAnimValueInSpecifiedUnits(float aValue, nsSVGElement *aSVGElement);
+  nsresult NewValueSpecifiedUnits(uint16_t aUnitType, float aValue,
+                                  nsSVGElement *aSVGElement);
+  nsresult ConvertToSpecifiedUnits(uint16_t aUnitType, nsSVGElement *aSVGElement);
+  nsresult ToDOMBaseVal(mozilla::DOMSVGLength **aResult, nsSVGElement* aSVGElement);
+  nsresult ToDOMAnimVal(mozilla::DOMSVGLength **aResult, nsSVGElement* aSVGElement);
+
+public:
+  struct SMILLength : public nsISMILAttr
+  {
+  public:
+    SMILLength(nsSVGLength2* 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.
+    nsSVGLength2* 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_SVGLENGTH2_H__