From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 dom/svg/SVGAnimatedTransformList.cpp | 138 +++++++++++++++++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 dom/svg/SVGAnimatedTransformList.cpp

(limited to 'dom/svg/SVGAnimatedTransformList.cpp')

diff --git a/dom/svg/SVGAnimatedTransformList.cpp b/dom/svg/SVGAnimatedTransformList.cpp
new file mode 100644
index 000000000..1e4451a98
--- /dev/null
+++ b/dom/svg/SVGAnimatedTransformList.cpp
@@ -0,0 +1,138 @@
+/* -*- 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 "mozilla/dom/SVGAnimatedTransformList.h"
+#include "DOMSVGTransformList.h"
+#include "nsSVGAnimatedTransformList.h"
+#include "nsSVGAttrTearoffTable.h"
+#include "mozilla/dom/SVGAnimatedTransformListBinding.h"
+
+namespace mozilla {
+namespace dom {
+
+static
+  nsSVGAttrTearoffTable<nsSVGAnimatedTransformList, SVGAnimatedTransformList>
+  sSVGAnimatedTransformListTearoffTable;
+
+NS_SVG_VAL_IMPL_CYCLE_COLLECTION_WRAPPERCACHED(SVGAnimatedTransformList, mElement)
+
+NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(SVGAnimatedTransformList, AddRef)
+NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(SVGAnimatedTransformList, Release)
+
+JSObject*
+SVGAnimatedTransformList::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return SVGAnimatedTransformListBinding::Wrap(aCx, this, aGivenProto);
+}
+
+//----------------------------------------------------------------------
+already_AddRefed<DOMSVGTransformList>
+SVGAnimatedTransformList::BaseVal()
+{
+  if (!mBaseVal) {
+    mBaseVal = new DOMSVGTransformList(this, InternalAList().GetBaseValue());
+  }
+  RefPtr<DOMSVGTransformList> baseVal = mBaseVal;
+  return baseVal.forget();
+}
+
+already_AddRefed<DOMSVGTransformList>
+SVGAnimatedTransformList::AnimVal()
+{
+  if (!mAnimVal) {
+    mAnimVal = new DOMSVGTransformList(this, InternalAList().GetAnimValue());
+  }
+  RefPtr<DOMSVGTransformList> animVal = mAnimVal;
+  return animVal.forget();
+}
+
+/* static */ already_AddRefed<SVGAnimatedTransformList>
+SVGAnimatedTransformList::GetDOMWrapper(nsSVGAnimatedTransformList *aList,
+                                        nsSVGElement *aElement)
+{
+  RefPtr<SVGAnimatedTransformList> wrapper =
+    sSVGAnimatedTransformListTearoffTable.GetTearoff(aList);
+  if (!wrapper) {
+    wrapper = new SVGAnimatedTransformList(aElement);
+    sSVGAnimatedTransformListTearoffTable.AddTearoff(aList, wrapper);
+  }
+  return wrapper.forget();
+}
+
+/* static */ SVGAnimatedTransformList*
+SVGAnimatedTransformList::GetDOMWrapperIfExists(
+  nsSVGAnimatedTransformList *aList)
+{
+  return sSVGAnimatedTransformListTearoffTable.GetTearoff(aList);
+}
+
+SVGAnimatedTransformList::~SVGAnimatedTransformList()
+{
+  // Script no longer has any references to us, to our base/animVal objects, or
+  // to any of their list items.
+  sSVGAnimatedTransformListTearoffTable.RemoveTearoff(&InternalAList());
+}
+
+void
+SVGAnimatedTransformList::InternalBaseValListWillChangeLengthTo(
+  uint32_t aNewLength)
+{
+  // When the number of items in our internal counterpart's baseVal changes,
+  // we MUST keep our baseVal in sync. If we don't, script will either see a
+  // list that is too short and be unable to access indexes that should be
+  // valid, or else, MUCH WORSE, script will see a list that is too long and be
+  // able to access "items" at indexes that are out of bounds (read/write to
+  // bad memory)!!
+
+  RefPtr<SVGAnimatedTransformList> kungFuDeathGrip;
+  if (mBaseVal) {
+    if (aNewLength < mBaseVal->LengthNoFlush()) {
+      // InternalListLengthWillChange might clear last reference to |this|.
+      // Retain a temporary reference to keep from dying before returning.
+      kungFuDeathGrip = this;
+    }
+    mBaseVal->InternalListLengthWillChange(aNewLength);
+  }
+
+  // If our attribute is not animating, then our animVal mirrors our baseVal
+  // and we must sync its length too. (If our attribute is animating, then the
+  // SMIL engine takes care of calling InternalAnimValListWillChangeLengthTo()
+  // if necessary.)
+
+  if (!IsAnimating()) {
+    InternalAnimValListWillChangeLengthTo(aNewLength);
+  }
+}
+
+void
+SVGAnimatedTransformList::InternalAnimValListWillChangeLengthTo(
+  uint32_t aNewLength)
+{
+  if (mAnimVal) {
+    mAnimVal->InternalListLengthWillChange(aNewLength);
+  }
+}
+
+bool
+SVGAnimatedTransformList::IsAnimating() const
+{
+  return InternalAList().IsAnimating();
+}
+
+nsSVGAnimatedTransformList&
+SVGAnimatedTransformList::InternalAList()
+{
+  return *mElement->GetAnimatedTransformList();
+}
+
+const nsSVGAnimatedTransformList&
+SVGAnimatedTransformList::InternalAList() const
+{
+  return *mElement->GetAnimatedTransformList();
+}
+
+} // namespace dom
+} // namespace mozilla
-- 
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