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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/DOMSVGAnimatedNumberList.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/svg/DOMSVGAnimatedNumberList.cpp')
-rw-r--r--dom/svg/DOMSVGAnimatedNumberList.cpp147
1 files changed, 147 insertions, 0 deletions
diff --git a/dom/svg/DOMSVGAnimatedNumberList.cpp b/dom/svg/DOMSVGAnimatedNumberList.cpp
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+++ b/dom/svg/DOMSVGAnimatedNumberList.cpp
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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/. */
+
+#include "DOMSVGAnimatedNumberList.h"
+#include "DOMSVGNumberList.h"
+#include "SVGAnimatedNumberList.h"
+#include "nsSVGElement.h"
+#include "nsCOMPtr.h"
+#include "nsSVGAttrTearoffTable.h"
+#include "mozilla/dom/SVGAnimatedNumberListBinding.h"
+
+// See the architecture comment in this file's header.
+
+namespace mozilla {
+
+ static inline
+nsSVGAttrTearoffTable<SVGAnimatedNumberList, DOMSVGAnimatedNumberList>&
+SVGAnimatedNumberListTearoffTable()
+{
+ static nsSVGAttrTearoffTable<SVGAnimatedNumberList, DOMSVGAnimatedNumberList>
+ sSVGAnimatedNumberListTearoffTable;
+ return sSVGAnimatedNumberListTearoffTable;
+}
+
+NS_SVG_VAL_IMPL_CYCLE_COLLECTION_WRAPPERCACHED(DOMSVGAnimatedNumberList, mElement)
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMSVGAnimatedNumberList)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMSVGAnimatedNumberList)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DOMSVGAnimatedNumberList)
+ NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+ NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+JSObject*
+DOMSVGAnimatedNumberList::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+ return mozilla::dom::SVGAnimatedNumberListBinding::Wrap(aCx, this, aGivenProto);
+}
+
+already_AddRefed<DOMSVGNumberList>
+DOMSVGAnimatedNumberList::BaseVal()
+{
+ if (!mBaseVal) {
+ mBaseVal = new DOMSVGNumberList(this, InternalAList().GetBaseValue());
+ }
+ RefPtr<DOMSVGNumberList> baseVal = mBaseVal;
+ return baseVal.forget();
+}
+
+already_AddRefed<DOMSVGNumberList>
+DOMSVGAnimatedNumberList::AnimVal()
+{
+ if (!mAnimVal) {
+ mAnimVal = new DOMSVGNumberList(this, InternalAList().GetAnimValue());
+ }
+ RefPtr<DOMSVGNumberList> animVal = mAnimVal;
+ return animVal.forget();
+}
+
+/* static */ already_AddRefed<DOMSVGAnimatedNumberList>
+DOMSVGAnimatedNumberList::GetDOMWrapper(SVGAnimatedNumberList *aList,
+ nsSVGElement *aElement,
+ uint8_t aAttrEnum)
+{
+ RefPtr<DOMSVGAnimatedNumberList> wrapper =
+ SVGAnimatedNumberListTearoffTable().GetTearoff(aList);
+ if (!wrapper) {
+ wrapper = new DOMSVGAnimatedNumberList(aElement, aAttrEnum);
+ SVGAnimatedNumberListTearoffTable().AddTearoff(aList, wrapper);
+ }
+ return wrapper.forget();
+}
+
+/* static */ DOMSVGAnimatedNumberList*
+DOMSVGAnimatedNumberList::GetDOMWrapperIfExists(SVGAnimatedNumberList *aList)
+{
+ return SVGAnimatedNumberListTearoffTable().GetTearoff(aList);
+}
+
+DOMSVGAnimatedNumberList::~DOMSVGAnimatedNumberList()
+{
+ // Script no longer has any references to us, to our base/animVal objects, or
+ // to any of their list items.
+ SVGAnimatedNumberListTearoffTable().RemoveTearoff(&InternalAList());
+}
+
+void
+DOMSVGAnimatedNumberList::InternalBaseValListWillChangeTo(const SVGNumberList& aNewValue)
+{
+ // 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<DOMSVGAnimatedNumberList> kungFuDeathGrip;
+ if (mBaseVal) {
+ if (aNewValue.Length() < mBaseVal->LengthNoFlush()) {
+ // InternalListLengthWillChange might clear last reference to |this|.
+ // Retain a temporary reference to keep from dying before returning.
+ kungFuDeathGrip = this;
+ }
+ mBaseVal->InternalListLengthWillChange(aNewValue.Length());
+ }
+
+ // 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 InternalAnimValListWillChangeTo() if
+ // necessary.)
+
+ if (!IsAnimating()) {
+ InternalAnimValListWillChangeTo(aNewValue);
+ }
+}
+
+void
+DOMSVGAnimatedNumberList::InternalAnimValListWillChangeTo(const SVGNumberList& aNewValue)
+{
+ if (mAnimVal) {
+ mAnimVal->InternalListLengthWillChange(aNewValue.Length());
+ }
+}
+
+bool
+DOMSVGAnimatedNumberList::IsAnimating() const
+{
+ return InternalAList().IsAnimating();
+}
+
+SVGAnimatedNumberList&
+DOMSVGAnimatedNumberList::InternalAList()
+{
+ return *mElement->GetAnimatedNumberList(mAttrEnum);
+}
+
+const SVGAnimatedNumberList&
+DOMSVGAnimatedNumberList::InternalAList() const
+{
+ return *mElement->GetAnimatedNumberList(mAttrEnum);
+}
+
+} // namespace mozilla