mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-07 12:15:51 +00:00
144 lines
4.6 KiB
C++
144 lines
4.6 KiB
C++
/* -*- 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 "DOMSVGAnimatedLengthList.h"
|
|
#include "DOMSVGLengthList.h"
|
|
#include "SVGAnimatedLengthList.h"
|
|
#include "nsSVGElement.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsSVGAttrTearoffTable.h"
|
|
#include "mozilla/dom/SVGAnimatedLengthListBinding.h"
|
|
|
|
// See the architecture comment in this file's header.
|
|
|
|
namespace mozilla {
|
|
|
|
static inline
|
|
nsSVGAttrTearoffTable<SVGAnimatedLengthList, DOMSVGAnimatedLengthList>&
|
|
SVGAnimatedLengthListTearoffTable()
|
|
{
|
|
static nsSVGAttrTearoffTable<SVGAnimatedLengthList, DOMSVGAnimatedLengthList>
|
|
sSVGAnimatedLengthListTearoffTable;
|
|
return sSVGAnimatedLengthListTearoffTable;
|
|
}
|
|
|
|
NS_SVG_VAL_IMPL_CYCLE_COLLECTION_WRAPPERCACHED(DOMSVGAnimatedLengthList, mElement)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(DOMSVGAnimatedLengthList, AddRef)
|
|
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(DOMSVGAnimatedLengthList, Release)
|
|
|
|
JSObject*
|
|
DOMSVGAnimatedLengthList::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
|
|
{
|
|
return dom::SVGAnimatedLengthListBinding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
already_AddRefed<DOMSVGLengthList>
|
|
DOMSVGAnimatedLengthList::BaseVal()
|
|
{
|
|
if (!mBaseVal) {
|
|
mBaseVal = new DOMSVGLengthList(this, InternalAList().GetBaseValue());
|
|
}
|
|
nsRefPtr<DOMSVGLengthList> baseVal = mBaseVal;
|
|
return baseVal.forget();
|
|
}
|
|
|
|
already_AddRefed<DOMSVGLengthList>
|
|
DOMSVGAnimatedLengthList::AnimVal()
|
|
{
|
|
if (!mAnimVal) {
|
|
mAnimVal = new DOMSVGLengthList(this, InternalAList().GetAnimValue());
|
|
}
|
|
nsRefPtr<DOMSVGLengthList> animVal = mAnimVal;
|
|
return animVal.forget();
|
|
}
|
|
|
|
/* static */ already_AddRefed<DOMSVGAnimatedLengthList>
|
|
DOMSVGAnimatedLengthList::GetDOMWrapper(SVGAnimatedLengthList *aList,
|
|
nsSVGElement *aElement,
|
|
uint8_t aAttrEnum,
|
|
uint8_t aAxis)
|
|
{
|
|
nsRefPtr<DOMSVGAnimatedLengthList> wrapper =
|
|
SVGAnimatedLengthListTearoffTable().GetTearoff(aList);
|
|
if (!wrapper) {
|
|
wrapper = new DOMSVGAnimatedLengthList(aElement, aAttrEnum, aAxis);
|
|
SVGAnimatedLengthListTearoffTable().AddTearoff(aList, wrapper);
|
|
}
|
|
return wrapper.forget();
|
|
}
|
|
|
|
/* static */ DOMSVGAnimatedLengthList*
|
|
DOMSVGAnimatedLengthList::GetDOMWrapperIfExists(SVGAnimatedLengthList *aList)
|
|
{
|
|
return SVGAnimatedLengthListTearoffTable().GetTearoff(aList);
|
|
}
|
|
|
|
DOMSVGAnimatedLengthList::~DOMSVGAnimatedLengthList()
|
|
{
|
|
// Script no longer has any references to us, to our base/animVal objects, or
|
|
// to any of their list items.
|
|
SVGAnimatedLengthListTearoffTable().RemoveTearoff(&InternalAList());
|
|
}
|
|
|
|
void
|
|
DOMSVGAnimatedLengthList::InternalBaseValListWillChangeTo(const SVGLengthList& 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)!!
|
|
|
|
nsRefPtr<DOMSVGAnimatedLengthList> 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
|
|
DOMSVGAnimatedLengthList::InternalAnimValListWillChangeTo(const SVGLengthList& aNewValue)
|
|
{
|
|
if (mAnimVal) {
|
|
mAnimVal->InternalListLengthWillChange(aNewValue.Length());
|
|
}
|
|
}
|
|
|
|
bool
|
|
DOMSVGAnimatedLengthList::IsAnimating() const
|
|
{
|
|
return InternalAList().IsAnimating();
|
|
}
|
|
|
|
SVGAnimatedLengthList&
|
|
DOMSVGAnimatedLengthList::InternalAList()
|
|
{
|
|
return *mElement->GetAnimatedLengthList(mAttrEnum);
|
|
}
|
|
|
|
const SVGAnimatedLengthList&
|
|
DOMSVGAnimatedLengthList::InternalAList() const
|
|
{
|
|
return *mElement->GetAnimatedLengthList(mAttrEnum);
|
|
}
|
|
|
|
} // namespace mozilla
|