Add m-esr52 at 52.6.0

1 files changed, 383 insertions, 0 deletions

diff --git a/dom/svg/DOMSVGPathSeg.cpp b/dom/svg/DOMSVGPathSeg.cpp
new file mode 100644
index 000000000..95be3521e
--- /dev/null
+++ b/dom/svg/DOMSVGPathSeg.cpp
@@ -0,0 +1,383 @@
+/* -*- 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/. */
+
+#include "DOMSVGPathSeg.h"
+#include "DOMSVGPathSegList.h"
+#include "SVGAnimatedPathSegList.h"
+#include "nsSVGElement.h"
+#include "nsError.h"
+
+// See the architecture comment in DOMSVGPathSegList.h.
+
+namespace mozilla {
+
+// We could use NS_IMPL_CYCLE_COLLECTION(, except that in Unlink() we need to
+// clear our list's weak ref to us to be safe. (The other option would be to
+// not unlink and rely on the breaking of the other edges in the cycle, as
+// NS_SVG_VAL_IMPL_CYCLE_COLLECTION does.)
+NS_IMPL_CYCLE_COLLECTION_CLASS(DOMSVGPathSeg)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(DOMSVGPathSeg)
+  // We may not belong to a list, so we must null check tmp->mList.
+  if (tmp->mList) {
+    tmp->mList->ItemAt(tmp->mListIndex) = nullptr;
+  }
+NS_IMPL_CYCLE_COLLECTION_UNLINK(mList)
+NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(DOMSVGPathSeg)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mList)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(DOMSVGPathSeg)
+NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
+NS_IMPL_CYCLE_COLLECTION_TRACE_END
+
+NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(DOMSVGPathSeg, AddRef)
+NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(DOMSVGPathSeg, Release)
+
+//----------------------------------------------------------------------
+// Helper class: AutoChangePathSegNotifier
+// Stack-based helper class to pair calls to WillChangePathSegList
+// and DidChangePathSegList.
+class MOZ_RAII AutoChangePathSegNotifier
+{
+public:
+  explicit AutoChangePathSegNotifier(DOMSVGPathSeg* aPathSeg MOZ_GUARD_OBJECT_NOTIFIER_PARAM)
+    : mPathSeg(aPathSeg)
+  {
+    MOZ_GUARD_OBJECT_NOTIFIER_INIT;
+    MOZ_ASSERT(mPathSeg, "Expecting non-null pathSeg");
+    MOZ_ASSERT(mPathSeg->HasOwner(),
+               "Expecting list to have an owner for notification");
+    mEmptyOrOldValue =
+      mPathSeg->Element()->WillChangePathSegList();
+  }
+
+  ~AutoChangePathSegNotifier()
+  {
+    mPathSeg->Element()->DidChangePathSegList(mEmptyOrOldValue);
+    if (mPathSeg->mList->AttrIsAnimating()) {
+      mPathSeg->Element()->AnimationNeedsResample();
+    }
+  }
+
+private:
+  DOMSVGPathSeg* const mPathSeg;
+  nsAttrValue    mEmptyOrOldValue;
+  MOZ_DECL_USE_GUARD_OBJECT_NOTIFIER
+};
+
+DOMSVGPathSeg::DOMSVGPathSeg(DOMSVGPathSegList *aList,
+                             uint32_t aListIndex,
+                             bool aIsAnimValItem)
+  : mList(aList)
+  , mListIndex(aListIndex)
+  , mIsAnimValItem(aIsAnimValItem)
+{
+  // These shifts are in sync with the members in the header.
+  MOZ_ASSERT(aList && aListIndex <= MaxListIndex(), "bad arg");
+
+  MOZ_ASSERT(IndexIsValid(), "Bad index for DOMSVGPathSeg!");
+}
+
+DOMSVGPathSeg::DOMSVGPathSeg()
+  : mList(nullptr)
+  , mListIndex(0)
+  , mIsAnimValItem(false)
+{
+}
+
+void
+DOMSVGPathSeg::InsertingIntoList(DOMSVGPathSegList *aList,
+                                 uint32_t aListIndex,
+                                 bool aIsAnimValItem)
+{
+  MOZ_ASSERT(!HasOwner(), "Inserting item that is already in a list");
+
+  mList = aList;
+  mListIndex = aListIndex;
+  mIsAnimValItem = aIsAnimValItem;
+
+  MOZ_ASSERT(IndexIsValid(), "Bad index for DOMSVGPathSeg!");
+}
+
+void
+DOMSVGPathSeg::RemovingFromList()
+{
+  uint32_t argCount = SVGPathSegUtils::ArgCountForType(Type());
+  // InternalItem() + 1, because the args come after the encoded seg type
+  memcpy(PtrToMemberArgs(), InternalItem() + 1, argCount * sizeof(float));
+  mList = nullptr;
+  mIsAnimValItem = false;
+}
+
+void
+DOMSVGPathSeg::ToSVGPathSegEncodedData(float* aRaw)
+{
+  MOZ_ASSERT(aRaw, "null pointer");
+  uint32_t argCount = SVGPathSegUtils::ArgCountForType(Type());
+  if (IsInList()) {
+    // 1 + argCount, because we're copying the encoded seg type and args
+    memcpy(aRaw, InternalItem(), (1 + argCount) * sizeof(float));
+  } else {
+    aRaw[0] = SVGPathSegUtils::EncodeType(Type());
+    // aRaw + 1, because the args go after the encoded seg type
+    memcpy(aRaw + 1, PtrToMemberArgs(), argCount * sizeof(float));
+  }
+}
+
+float*
+DOMSVGPathSeg::InternalItem()
+{
+  uint32_t dataIndex = mList->mItems[mListIndex].mInternalDataIndex;
+  return &(mList->InternalList().mData[dataIndex]);
+}
+
+#ifdef DEBUG
+bool
+DOMSVGPathSeg::IndexIsValid()
+{
+  SVGAnimatedPathSegList *alist = Element()->GetAnimPathSegList();
+  return (mIsAnimValItem &&
+          mListIndex < alist->GetAnimValue().CountItems()) ||
+         (!mIsAnimValItem &&
+          mListIndex < alist->GetBaseValue().CountItems());
+}
+#endif
+
+
+////////////////////////////////////////////////////////////////////////
+// Implementation of DOMSVGPathSeg sub-classes below this point
+
+#define IMPL_PROP_WITH_TYPE(segName, propName, index, type)                   \
+  type                                                                        \
+  DOMSVGPathSeg##segName::propName()                                          \
+  {                                                                           \
+    if (mIsAnimValItem && HasOwner()) {                                       \
+      Element()->FlushAnimations(); /* May make HasOwner() == false */        \
+    }                                                                         \
+    return type(HasOwner() ? InternalItem()[1+index] : mArgs[index]);         \
+  }                                                                           \
+  void                                                                        \
+  DOMSVGPathSeg##segName::Set##propName(type a##propName, ErrorResult& rv)    \
+  {                                                                           \
+    if (mIsAnimValItem) {                                                     \
+      rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);                     \
+      return;                                                                 \
+    }                                                                         \
+    if (HasOwner()) {                                                         \
+      if (InternalItem()[1+index] == float(a##propName)) {                    \
+        return;                                                               \
+      }                                                                       \
+      AutoChangePathSegNotifier notifier(this);                               \
+      InternalItem()[1+index] = float(a##propName);                           \
+    } else {                                                                  \
+      mArgs[index] = float(a##propName);                                      \
+    }                                                                         \
+  }
+
+// For float, the normal type of arguments
+#define IMPL_FLOAT_PROP(segName, propName, index) \
+  IMPL_PROP_WITH_TYPE(segName, propName, index, float)
+
+// For the boolean flags in arc commands
+#define IMPL_BOOL_PROP(segName, propName, index) \
+  IMPL_PROP_WITH_TYPE(segName, propName, index, bool)
+
+
+///////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(MovetoAbs, X, 0)
+IMPL_FLOAT_PROP(MovetoAbs, Y, 1)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(MovetoRel, X, 0)
+IMPL_FLOAT_PROP(MovetoRel, Y, 1)
+
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(LinetoAbs, X, 0)
+IMPL_FLOAT_PROP(LinetoAbs, Y, 1)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(LinetoRel, X, 0)
+IMPL_FLOAT_PROP(LinetoRel, Y, 1)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(CurvetoCubicAbs, X1, 0)
+IMPL_FLOAT_PROP(CurvetoCubicAbs, Y1, 1)
+IMPL_FLOAT_PROP(CurvetoCubicAbs, X2, 2)
+IMPL_FLOAT_PROP(CurvetoCubicAbs, Y2, 3)
+IMPL_FLOAT_PROP(CurvetoCubicAbs, X, 4)
+IMPL_FLOAT_PROP(CurvetoCubicAbs, Y, 5)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(CurvetoCubicRel, X1, 0)
+IMPL_FLOAT_PROP(CurvetoCubicRel, Y1, 1)
+IMPL_FLOAT_PROP(CurvetoCubicRel, X2, 2)
+IMPL_FLOAT_PROP(CurvetoCubicRel, Y2, 3)
+IMPL_FLOAT_PROP(CurvetoCubicRel, X, 4)
+IMPL_FLOAT_PROP(CurvetoCubicRel, Y, 5)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(CurvetoQuadraticAbs, X1, 0)
+IMPL_FLOAT_PROP(CurvetoQuadraticAbs, Y1, 1)
+IMPL_FLOAT_PROP(CurvetoQuadraticAbs, X, 2)
+IMPL_FLOAT_PROP(CurvetoQuadraticAbs, Y, 3)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(CurvetoQuadraticRel, X1, 0)
+IMPL_FLOAT_PROP(CurvetoQuadraticRel, Y1, 1)
+IMPL_FLOAT_PROP(CurvetoQuadraticRel, X, 2)
+IMPL_FLOAT_PROP(CurvetoQuadraticRel, Y, 3)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(ArcAbs, R1, 0)
+IMPL_FLOAT_PROP(ArcAbs, R2, 1)
+IMPL_FLOAT_PROP(ArcAbs, Angle, 2)
+IMPL_BOOL_PROP(ArcAbs, LargeArcFlag, 3)
+IMPL_BOOL_PROP(ArcAbs, SweepFlag, 4)
+IMPL_FLOAT_PROP(ArcAbs, X, 5)
+IMPL_FLOAT_PROP(ArcAbs, Y, 6)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(ArcRel, R1, 0)
+IMPL_FLOAT_PROP(ArcRel, R2, 1)
+IMPL_FLOAT_PROP(ArcRel, Angle, 2)
+IMPL_BOOL_PROP(ArcRel, LargeArcFlag, 3)
+IMPL_BOOL_PROP(ArcRel, SweepFlag, 4)
+IMPL_FLOAT_PROP(ArcRel, X, 5)
+IMPL_FLOAT_PROP(ArcRel, Y, 6)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(LinetoHorizontalAbs, X, 0)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(LinetoHorizontalRel, X, 0)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(LinetoVerticalAbs, Y, 0)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(LinetoVerticalRel, Y, 0)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(CurvetoCubicSmoothAbs, X2, 0)
+IMPL_FLOAT_PROP(CurvetoCubicSmoothAbs, Y2, 1)
+IMPL_FLOAT_PROP(CurvetoCubicSmoothAbs, X, 2)
+IMPL_FLOAT_PROP(CurvetoCubicSmoothAbs, Y, 3)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(CurvetoCubicSmoothRel, X2, 0)
+IMPL_FLOAT_PROP(CurvetoCubicSmoothRel, Y2, 1)
+IMPL_FLOAT_PROP(CurvetoCubicSmoothRel, X, 2)
+IMPL_FLOAT_PROP(CurvetoCubicSmoothRel, Y, 3)
+
+
+////////////////////////////////////////////////////////////////////////
+
+IMPL_FLOAT_PROP(CurvetoQuadraticSmoothAbs, X, 0)
+IMPL_FLOAT_PROP(CurvetoQuadraticSmoothAbs, Y, 1)
+
+
+////////////////////////////////////////////////////////////////////////
+
+
+IMPL_FLOAT_PROP(CurvetoQuadraticSmoothRel, X, 0)
+IMPL_FLOAT_PROP(CurvetoQuadraticSmoothRel, Y, 1)
+
+
+
+// This must come after DOMSVGPathSegClosePath et. al. have been declared.
+/* static */ DOMSVGPathSeg*
+DOMSVGPathSeg::CreateFor(DOMSVGPathSegList *aList,
+                         uint32_t aListIndex,
+                         bool aIsAnimValItem)
+{
+  uint32_t dataIndex = aList->mItems[aListIndex].mInternalDataIndex;
+  float *data = &aList->InternalList().mData[dataIndex];
+  uint32_t type = SVGPathSegUtils::DecodeType(data[0]);
+
+  switch (type)
+  {
+  case PATHSEG_CLOSEPATH:
+    return new DOMSVGPathSegClosePath(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_MOVETO_ABS:
+    return new DOMSVGPathSegMovetoAbs(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_MOVETO_REL:
+    return new DOMSVGPathSegMovetoRel(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_LINETO_ABS:
+    return new DOMSVGPathSegLinetoAbs(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_LINETO_REL:
+    return new DOMSVGPathSegLinetoRel(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_CURVETO_CUBIC_ABS:
+    return new DOMSVGPathSegCurvetoCubicAbs(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_CURVETO_CUBIC_REL:
+    return new DOMSVGPathSegCurvetoCubicRel(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_CURVETO_QUADRATIC_ABS:
+    return new DOMSVGPathSegCurvetoQuadraticAbs(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_CURVETO_QUADRATIC_REL:
+    return new DOMSVGPathSegCurvetoQuadraticRel(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_ARC_ABS:
+    return new DOMSVGPathSegArcAbs(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_ARC_REL:
+    return new DOMSVGPathSegArcRel(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_LINETO_HORIZONTAL_ABS:
+    return new DOMSVGPathSegLinetoHorizontalAbs(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_LINETO_HORIZONTAL_REL:
+    return new DOMSVGPathSegLinetoHorizontalRel(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_LINETO_VERTICAL_ABS:
+    return new DOMSVGPathSegLinetoVerticalAbs(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_LINETO_VERTICAL_REL:
+    return new DOMSVGPathSegLinetoVerticalRel(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_CURVETO_CUBIC_SMOOTH_ABS:
+    return new DOMSVGPathSegCurvetoCubicSmoothAbs(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_CURVETO_CUBIC_SMOOTH_REL:
+    return new DOMSVGPathSegCurvetoCubicSmoothRel(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS:
+    return new DOMSVGPathSegCurvetoQuadraticSmoothAbs(aList, aListIndex, aIsAnimValItem);
+  case PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL:
+    return new DOMSVGPathSegCurvetoQuadraticSmoothRel(aList, aListIndex, aIsAnimValItem);
+  default:
+    NS_NOTREACHED("Invalid path segment type");
+    return nullptr;
+  }
+}
+
+} // namespace mozilla