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C++ AttrIsAnimating函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中AttrIsAnimating函数的典型用法代码示例。如果您正苦于以下问题：C++ AttrIsAnimating函数的具体用法？C++ AttrIsAnimating怎么用？C++ AttrIsAnimating使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了AttrIsAnimating函数的17个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: Element

void
DOMSVGPointList::Clear(ErrorResult& aError)
{
  if (IsAnimValList()) {
    aError.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
    return;
  }

  if (LengthNoFlush() > 0) {
    nsAttrValue emptyOrOldValue = Element()->WillChangePointList();
    // DOM list items that are to be removed must be removed before we change
    // the internal list, otherwise they wouldn't be able to copy their
    // internal counterparts' values!

    InternalListWillChangeTo(SVGPointList()); // clears mItems

    if (!AttrIsAnimating()) {
      // The anim val list is in sync with the base val list
      DOMSVGPointList *animList =
        GetDOMWrapperIfExists(InternalAList().GetAnimValKey());
      if (animList) {
        animList->InternalListWillChangeTo(SVGPointList()); // clears its mItems
      }
    }

    InternalList().Clear();
    Element()->DidChangePointList(emptyOrOldValue);
    if (AttrIsAnimating()) {
      Element()->AnimationNeedsResample();
    }
  }
}
开发者ID:BitVapor，项目名称:Pale-Moon，代码行数:32，代码来源:DOMSVGPointList.cpp


示例2: InternalListWillChangeTo

NS_IMETHODIMP
DOMSVGPathSegList::Clear()
{
    if (IsAnimValList()) {
        return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
    }

    if (Length() > 0) {
        // DOM list items that are to be removed must be removed before we change
        // the internal list, otherwise they wouldn't be able to copy their
        // internal counterparts' values!

        InternalListWillChangeTo(SVGPathData()); // clears mItems

        if (!AttrIsAnimating()) {
            // The anim val list is in sync with the base val list
            DOMSVGPathSegList *animList =
                GetDOMWrapperIfExists(InternalAList().GetAnimValKey());
            if (animList) {
                animList->InternalListWillChangeTo(SVGPathData()); // clears its mItems
            }
        }

        InternalList().Clear();
        Element()->DidChangePathSegList(true);
        if (AttrIsAnimating()) {
            Element()->AnimationNeedsResample();
        }
    }
    return NS_OK;
}
开发者ID:rfk，项目名称:services-central，代码行数:31，代码来源:DOMSVGPathSegList.cpp


示例3: MaybeInsertNullInAnimValListAt

void
DOMSVGPathSegList::
  MaybeInsertNullInAnimValListAt(uint32_t aIndex,
                                 uint32_t aInternalIndex,
                                 uint32_t aArgCountForItem)
{
  NS_ABORT_IF_FALSE(!IsAnimValList(), "call from baseVal to animVal");

  if (AttrIsAnimating()) {
    // animVal not a clone of baseVal
    return;
  }

  // The anim val list is in sync with the base val list
  DOMSVGPathSegList *animVal =
    GetDOMWrapperIfExists(InternalAList().GetAnimValKey());
  if (!animVal) {
    // No animVal list wrapper
    return;
  }

  NS_ABORT_IF_FALSE(animVal->mItems.Length() == mItems.Length(),
                    "animVal list not in sync!");

  animVal->mItems.InsertElementAt(aIndex, ItemProxy(nullptr, aInternalIndex));

  animVal->UpdateListIndicesFromIndex(aIndex + 1, 1 + aArgCountForItem);
}
开发者ID:BitVapor，项目名称:Pale-Moon，代码行数:28，代码来源:DOMSVGPathSegList.cpp


示例4: MaybeRemoveItemFromAnimValListAt

void
DOMSVGPathSegList::
  MaybeRemoveItemFromAnimValListAt(uint32_t aIndex,
                                   int32_t aArgCountForItem)
{
  MOZ_ASSERT(!IsAnimValList(), "call from baseVal to animVal");

  if (AttrIsAnimating()) {
    // animVal not a clone of baseVal
    return;
  }

  // This needs to be a strong reference; otherwise, the RemovingFromList call
  // below might drop the last reference to animVal before we're done with it.
  nsRefPtr<DOMSVGPathSegList> animVal =
    GetDOMWrapperIfExists(InternalAList().GetAnimValKey());
  if (!animVal) {
    // No animVal list wrapper
    return;
  }

  MOZ_ASSERT(animVal->mItems.Length() == mItems.Length(),
             "animVal list not in sync!");

  if (animVal->ItemAt(aIndex)) {
    animVal->ItemAt(aIndex)->RemovingFromList();
  }
  animVal->mItems.RemoveElementAt(aIndex);

  animVal->UpdateListIndicesFromIndex(aIndex, -(1 + aArgCountForItem));
}
开发者ID:AOSC-Dev，项目名称:Pale-Moon，代码行数:31，代码来源:DOMSVGPathSegList.cpp


示例5: notifier

void
DOMSVGPathSegList::Clear(ErrorResult& aError)
{
  if (IsAnimValList()) {
    aError.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
    return;
  }

  if (LengthNoFlush() > 0) {
    AutoChangePathSegListNotifier notifier(this);
    // DOM list items that are to be removed must be removed before we change
    // the internal list, otherwise they wouldn't be able to copy their
    // internal counterparts' values!

    InternalListWillChangeTo(SVGPathData()); // clears mItems

    if (!AttrIsAnimating()) {
      // The anim val list is in sync with the base val list
      DOMSVGPathSegList *animList =
        GetDOMWrapperIfExists(InternalAList().GetAnimValKey());
      if (animList) {
        animList->InternalListWillChangeTo(SVGPathData()); // clears its mItems
      }
    }

    InternalList().Clear();
  }
}
开发者ID:AOSC-Dev，项目名称:Pale-Moon，代码行数:28，代码来源:DOMSVGPathSegList.cpp


示例6: MOZ_ASSERT

void
DOMSVGPointList::MaybeInsertNullInAnimValListAt(uint32_t aIndex)
{
  MOZ_ASSERT(!IsAnimValList(), "call from baseVal to animVal");

  if (AttrIsAnimating()) {
    // animVal not a clone of baseVal
    return;
  }

  // The anim val list is in sync with the base val list
  DOMSVGPointList *animVal =
    GetDOMWrapperIfExists(InternalAList().GetAnimValKey());
  if (!animVal) {
    // No animVal list wrapper
    return;
  }

  MOZ_ASSERT(animVal->mItems.Length() == mItems.Length(),
             "animVal list not in sync!");

  MOZ_ALWAYS_TRUE(animVal->mItems.InsertElementAt(aIndex, nullptr, fallible));

  UpdateListIndicesFromIndex(animVal->mItems, aIndex + 1);
}
开发者ID:Jar-win，项目名称:Waterfox，代码行数:25，代码来源:DOMSVGPointList.cpp


示例7: Length

NS_IMETHODIMP
DOMSVGPathSegList::InsertItemBefore(nsIDOMSVGPathSeg *aNewItem,
                                    PRUint32 aIndex,
                                    nsIDOMSVGPathSeg **_retval)
{
    *_retval = nsnull;
    if (IsAnimValList()) {
        return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
    }

    PRUint32 internalIndex;
    if (aIndex < Length()) {
        internalIndex = mItems[aIndex].mInternalDataIndex;
    } else {
        aIndex = Length();
        internalIndex = InternalList().mData.Length();
    }
    if (aIndex >= DOMSVGPathSeg::MaxListIndex()) {
        return NS_ERROR_DOM_INDEX_SIZE_ERR;
    }

    nsCOMPtr<DOMSVGPathSeg> domItem = do_QueryInterface(aNewItem);
    if (!domItem) {
        return NS_ERROR_DOM_SVG_WRONG_TYPE_ERR;
    }
    if (domItem->HasOwner()) {
        domItem = domItem->Clone(); // must do this before changing anything!
    }

    PRUint32 argCount = SVGPathSegUtils::ArgCountForType(domItem->Type());

    // Ensure we have enough memory so we can avoid complex error handling below:
    if (!mItems.SetCapacity(mItems.Length() + 1) ||
            !InternalList().mData.SetCapacity(InternalList().mData.Length() + 1 + argCount)) {
        return NS_ERROR_OUT_OF_MEMORY;
    }

    // Now that we know we're inserting, keep animVal list in sync as necessary.
    MaybeInsertNullInAnimValListAt(aIndex, internalIndex, argCount);

    float segAsRaw[1 + NS_SVG_PATH_SEG_MAX_ARGS];
    domItem->ToSVGPathSegEncodedData(segAsRaw);

    InternalList().mData.InsertElementsAt(internalIndex, segAsRaw, 1 + argCount);
    mItems.InsertElementAt(aIndex, ItemProxy(domItem.get(), internalIndex));

    // This MUST come after the insertion into InternalList(), or else under the
    // insertion into InternalList() the values read from domItem would be bad
    // data from InternalList() itself!:
    domItem->InsertingIntoList(this, aIndex, IsAnimValList());

    UpdateListIndicesFromIndex(aIndex + 1, argCount + 1);

    Element()->DidChangePathSegList(true);
    if (AttrIsAnimating()) {
        Element()->AnimationNeedsResample();
    }
    *_retval = domItem.forget().get();
    return NS_OK;
}
开发者ID:rfk，项目名称:services-central，代码行数:60，代码来源:DOMSVGPathSegList.cpp


示例8: NS_ABORT_IF_FALSE

void
DOMSVGPointList::MaybeInsertNullInAnimValListAt(uint32_t aIndex)
{
  NS_ABORT_IF_FALSE(!IsAnimValList(), "call from baseVal to animVal");

  if (AttrIsAnimating()) {
    // animVal not a clone of baseVal
    return;
  }

  // The anim val list is in sync with the base val list
  DOMSVGPointList *animVal =
    GetDOMWrapperIfExists(InternalAList().GetAnimValKey());
  if (!animVal) {
    // No animVal list wrapper
    return;
  }

  NS_ABORT_IF_FALSE(animVal->mItems.Length() == mItems.Length(),
                    "animVal list not in sync!");

  animVal->mItems.InsertElementAt(aIndex, static_cast<nsISVGPoint*>(nullptr));

  UpdateListIndicesFromIndex(animVal->mItems, aIndex + 1);
}
开发者ID:BitVapor，项目名称:Pale-Moon，代码行数:25，代码来源:DOMSVGPointList.cpp


示例9: MaybeRemoveItemFromAnimValListAt

void
DOMSVGPathSegList::
  MaybeRemoveItemFromAnimValListAt(PRUint32 aIndex,
                                   PRUint32 aArgCountForItem)
{
  NS_ABORT_IF_FALSE(!IsAnimValList(), "call from baseVal to animVal");

  if (AttrIsAnimating()) {
    // animVal not a clone of baseVal
    return;
  }

  DOMSVGPathSegList *animVal =
    GetDOMWrapperIfExists(InternalAList().GetAnimValKey());
  if (!animVal) {
    // No animVal list wrapper
    return;
  }

  NS_ABORT_IF_FALSE(animVal->mItems.Length() == mItems.Length(),
                    "animVal list not in sync!");

  if (animVal->ItemAt(aIndex)) {
    animVal->ItemAt(aIndex)->RemovingFromList();
  }
  animVal->mItems.RemoveElementAt(aIndex);

  animVal->UpdateListIndicesFromIndex(aIndex, -(1 + aArgCountForItem));
}
开发者ID:h4ck3rm1k3，项目名称:v8monkey，代码行数:29，代码来源:DOMSVGPathSegList.cpp


示例10: LengthNoFlush

already_AddRefed<DOMSVGPathSeg>
DOMSVGPathSegList::InsertItemBefore(DOMSVGPathSeg& aNewItem,
                                    uint32_t aIndex,
                                    ErrorResult& aError)
{
  if (IsAnimValList()) {
    aError.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
    return nullptr;
  }

  uint32_t internalIndex;
  if (aIndex < LengthNoFlush()) {
    internalIndex = mItems[aIndex].mInternalDataIndex;
  } else {
    aIndex = LengthNoFlush();
    internalIndex = InternalList().mData.Length();
  }
  if (aIndex >= DOMSVGPathSeg::MaxListIndex()) {
    aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
    return nullptr;
  }

  nsRefPtr<DOMSVGPathSeg> domItem = &aNewItem;
  if (domItem->HasOwner()) {
    domItem = domItem->Clone(); // must do this before changing anything!
  }

  uint32_t argCount = SVGPathSegUtils::ArgCountForType(domItem->Type());

  // Ensure we have enough memory so we can avoid complex error handling below:
  if (!mItems.SetCapacity(mItems.Length() + 1) ||
      !InternalList().mData.SetCapacity(InternalList().mData.Length() + 1 + argCount)) {
    aError.Throw(NS_ERROR_OUT_OF_MEMORY);
    return nullptr;
  }

  nsAttrValue emptyOrOldValue = Element()->WillChangePathSegList();
  // Now that we know we're inserting, keep animVal list in sync as necessary.
  MaybeInsertNullInAnimValListAt(aIndex, internalIndex, argCount);

  float segAsRaw[1 + NS_SVG_PATH_SEG_MAX_ARGS];
  domItem->ToSVGPathSegEncodedData(segAsRaw);

  InternalList().mData.InsertElementsAt(internalIndex, segAsRaw, 1 + argCount);
  mItems.InsertElementAt(aIndex, ItemProxy(domItem.get(), internalIndex));

  // This MUST come after the insertion into InternalList(), or else under the
  // insertion into InternalList() the values read from domItem would be bad
  // data from InternalList() itself!:
  domItem->InsertingIntoList(this, aIndex, IsAnimValList());

  UpdateListIndicesFromIndex(aIndex + 1, argCount + 1);

  Element()->DidChangePathSegList(emptyOrOldValue);
  if (AttrIsAnimating()) {
    Element()->AnimationNeedsResample();
  }
  return domItem.forget();
}
开发者ID:BitVapor，项目名称:Pale-Moon，代码行数:59，代码来源:DOMSVGPathSegList.cpp


示例11: NS_MIN

already_AddRefed<nsIDOMSVGPoint>
DOMSVGPointList::InsertItemBefore(nsIDOMSVGPoint *aNewItem, uint32_t aIndex,
                                  ErrorResult& aError)
{
  if (IsAnimValList()) {
    aError.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
    return nullptr;
  }

  aIndex = NS_MIN(aIndex, LengthNoFlush());
  if (aIndex >= DOMSVGPoint::MaxListIndex()) {
    aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
    return nullptr;
  }

  nsCOMPtr<DOMSVGPoint> domItem = do_QueryInterface(aNewItem);
  if (!domItem) {
    aError.Throw(NS_ERROR_DOM_SVG_WRONG_TYPE_ERR);
    return nullptr;
  }
  if (domItem->HasOwner() || domItem->IsReadonly()) {
    domItem = domItem->Clone(); // must do this before changing anything!
  }

  // Ensure we have enough memory so we can avoid complex error handling below:
  if (!mItems.SetCapacity(mItems.Length() + 1) ||
      !InternalList().SetCapacity(InternalList().Length() + 1)) {
    aError.Throw(NS_ERROR_OUT_OF_MEMORY);
    return nullptr;
  }

  nsAttrValue emptyOrOldValue = Element()->WillChangePointList();
  // Now that we know we're inserting, keep animVal list in sync as necessary.
  MaybeInsertNullInAnimValListAt(aIndex);

  InternalList().InsertItem(aIndex, domItem->ToSVGPoint());
  mItems.InsertElementAt(aIndex, domItem.get());

  // This MUST come after the insertion into InternalList(), or else under the
  // insertion into InternalList() the values read from domItem would be bad
  // data from InternalList() itself!:
  domItem->InsertingIntoList(this, aIndex, IsAnimValList());

  UpdateListIndicesFromIndex(mItems, aIndex + 1);

  Element()->DidChangePointList(emptyOrOldValue);
  if (AttrIsAnimating()) {
    Element()->AnimationNeedsResample();
  }
  return domItem.forget();
}
开发者ID:PinZhang，项目名称:releases-mozilla-central，代码行数:51，代码来源:DOMSVGPointList.cpp


示例12: EnsureItemAt

already_AddRefed<DOMSVGPathSeg>
DOMSVGPathSegList::RemoveItem(uint32_t aIndex,
                              ErrorResult& aError)
{
  if (IsAnimValList()) {
    aError.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
    return nullptr;
  }

  if (aIndex >= LengthNoFlush()) {
    aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
    return nullptr;
  }
  // We have to return the removed item, so make sure it exists:
  EnsureItemAt(aIndex);

  nsAttrValue emptyOrOldValue = Element()->WillChangePathSegList();
  // Notify the DOM item of removal *before* modifying the lists so that the
  // DOM item can copy its *old* value:
  ItemAt(aIndex)->RemovingFromList();
  nsRefPtr<DOMSVGPathSeg> result = ItemAt(aIndex);

  uint32_t internalIndex = mItems[aIndex].mInternalDataIndex;
  uint32_t segType = SVGPathSegUtils::DecodeType(InternalList().mData[internalIndex]);
  // NOTE: ArgCountForType returns a (small) unsigned value, but we're
  // intentionally putting it in a signed value, because we're going to
  // negate it, and you can't negate an unsigned value.
  int32_t argCount = SVGPathSegUtils::ArgCountForType(segType);

  // Now that we know we're removing, keep animVal list in sync as necessary.
  // Do this *before* touching InternalList() so the removed item can get its
  // internal value.
  MaybeRemoveItemFromAnimValListAt(aIndex, argCount);

  InternalList().mData.RemoveElementsAt(internalIndex, 1 + argCount);
  mItems.RemoveElementAt(aIndex);

  UpdateListIndicesFromIndex(aIndex, -(argCount + 1));

  Element()->DidChangePathSegList(emptyOrOldValue);
  if (AttrIsAnimating()) {
    Element()->AnimationNeedsResample();
  }
  return result.forget();
}
开发者ID:BitVapor，项目名称:Pale-Moon，代码行数:45，代码来源:DOMSVGPathSegList.cpp


示例13: EnsureItemAt

NS_IMETHODIMP
DOMSVGPathSegList::RemoveItem(PRUint32 aIndex,
                              nsIDOMSVGPathSeg **_retval)
{
  *_retval = nsnull;
  if (IsAnimValList()) {
    return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
  }

  if (aIndex >= Length()) {
    return NS_ERROR_DOM_INDEX_SIZE_ERR;
  }
  // We have to return the removed item, so make sure it exists:
  EnsureItemAt(aIndex);

  // Notify the DOM item of removal *before* modifying the lists so that the
  // DOM item can copy its *old* value:
  ItemAt(aIndex)->RemovingFromList();
  NS_ADDREF(*_retval = ItemAt(aIndex));

  PRUint32 internalIndex = mItems[aIndex].mInternalDataIndex;
  PRUint32 segType = SVGPathSegUtils::DecodeType(InternalList().mData[internalIndex]);
  PRUint32 argCount = SVGPathSegUtils::ArgCountForType(segType);

  // Now that we know we're removing, keep animVal list in sync as necessary.
  // Do this *before* touching InternalList() so the removed item can get its
  // internal value.
  MaybeRemoveItemFromAnimValListAt(aIndex, argCount);

  InternalList().mData.RemoveElementsAt(internalIndex, 1 + argCount);
  mItems.RemoveElementAt(aIndex);

  UpdateListIndicesFromIndex(aIndex, -(argCount + 1));

  Element()->DidChangePathSegList(PR_TRUE);
#ifdef MOZ_SMIL
  if (AttrIsAnimating()) {
    Element()->AnimationNeedsResample();
  }
#endif
  return NS_OK;
}
开发者ID:Egyptghost1，项目名称:DOMinator，代码行数:42，代码来源:DOMSVGPathSegList.cpp


示例14: do_QueryInterface

already_AddRefed<nsIDOMSVGPoint>
DOMSVGPointList::ReplaceItem(nsIDOMSVGPoint *aNewItem, uint32_t aIndex,
                             ErrorResult& aError)
{
  if (IsAnimValList()) {
    aError.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
    return nullptr;
  }

  nsCOMPtr<DOMSVGPoint> domItem = do_QueryInterface(aNewItem);
  if (!domItem) {
    aError.Throw(NS_ERROR_DOM_SVG_WRONG_TYPE_ERR);
    return nullptr;
  }
  if (aIndex >= LengthNoFlush()) {
    aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
    return nullptr;
  }
  if (domItem->HasOwner() || domItem->IsReadonly()) {
    domItem = domItem->Clone(); // must do this before changing anything!
  }

  nsAttrValue emptyOrOldValue = Element()->WillChangePointList();
  if (mItems[aIndex]) {
    // Notify any existing DOM item of removal *before* modifying the lists so
    // that the DOM item can copy the *old* value at its index:
    mItems[aIndex]->RemovingFromList();
  }

  InternalList()[aIndex] = domItem->ToSVGPoint();
  mItems[aIndex] = domItem;

  // This MUST come after the ToSVGPoint() call, otherwise that call
  // would end up reading bad data from InternalList()!
  domItem->InsertingIntoList(this, aIndex, IsAnimValList());

  Element()->DidChangePointList(emptyOrOldValue);
  if (AttrIsAnimating()) {
    Element()->AnimationNeedsResample();
  }
  return domItem.forget();
}
开发者ID:PinZhang，项目名称:releases-mozilla-central，代码行数:42，代码来源:DOMSVGPointList.cpp


示例15: GetDOMWrapperIfExists

bool
DOMSVGPointList::AnimListMirrorsBaseList() const
{
  return GetDOMWrapperIfExists(InternalAList().GetAnimValKey()) &&
           !AttrIsAnimating();
}
开发者ID:Wafflespeanut，项目名称:gecko-dev，代码行数:6，代码来源:DOMSVGPointList.cpp


示例16: do_QueryInterface

NS_IMETHODIMP
DOMSVGPathSegList::ReplaceItem(nsIDOMSVGPathSeg *aNewItem,
                               PRUint32 aIndex,
                               nsIDOMSVGPathSeg **_retval)
{
    *_retval = nsnull;
    if (IsAnimValList()) {
        return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
    }

    nsCOMPtr<DOMSVGPathSeg> domItem = do_QueryInterface(aNewItem);
    if (!domItem) {
        return NS_ERROR_DOM_SVG_WRONG_TYPE_ERR;
    }
    if (aIndex >= Length()) {
        return NS_ERROR_DOM_INDEX_SIZE_ERR;
    }
    if (domItem->HasOwner()) {
        domItem = domItem->Clone(); // must do this before changing anything!
    }

    if (ItemAt(aIndex)) {
        // Notify any existing DOM item of removal *before* modifying the lists so
        // that the DOM item can copy the *old* value at its index:
        ItemAt(aIndex)->RemovingFromList();
    }

    PRUint32 internalIndex = mItems[aIndex].mInternalDataIndex;
    // We use InternalList() to get oldArgCount since we may not have a DOM
    // wrapper at the index being replaced.
    PRUint32 oldType = SVGPathSegUtils::DecodeType(InternalList().mData[internalIndex]);
    PRUint32 oldArgCount = SVGPathSegUtils::ArgCountForType(oldType);
    PRUint32 newArgCount = SVGPathSegUtils::ArgCountForType(domItem->Type());

    float segAsRaw[1 + NS_SVG_PATH_SEG_MAX_ARGS];
    domItem->ToSVGPathSegEncodedData(segAsRaw);

    bool ok = !!InternalList().mData.ReplaceElementsAt(
                  internalIndex, 1 + oldArgCount,
                  segAsRaw, 1 + newArgCount);
    if (!ok) {
        return NS_ERROR_OUT_OF_MEMORY;
    }
    ItemAt(aIndex) = domItem;

    // This MUST come after the ToSVGPathSegEncodedData call, otherwise that call
    // would end up reading bad data from InternalList()!
    domItem->InsertingIntoList(this, aIndex, IsAnimValList());

    PRUint32 delta = newArgCount - oldArgCount;
    if (delta != 0) {
        for (PRUint32 i = aIndex + 1; i < Length(); ++i) {
            mItems[i].mInternalDataIndex += delta;
        }
    }

    Element()->DidChangePathSegList(true);
    if (AttrIsAnimating()) {
        Element()->AnimationNeedsResample();
    }
    NS_ADDREF(*_retval = domItem.get());
    return NS_OK;
}
开发者ID:rfk，项目名称:services-central，代码行数:63，代码来源:DOMSVGPathSegList.cpp


示例17: Element

already_AddRefed<DOMSVGPathSeg>
DOMSVGPathSegList::ReplaceItem(DOMSVGPathSeg& aNewItem,
                               uint32_t aIndex,
                               ErrorResult& aError)
{
  if (IsAnimValList()) {
    aError.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
    return nullptr;
  }

  if (aIndex >= LengthNoFlush()) {
    aError.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
    return nullptr;
  }

  nsRefPtr<DOMSVGPathSeg> domItem = &aNewItem;
  if (domItem->HasOwner()) {
    domItem = domItem->Clone(); // must do this before changing anything!
  }

  nsAttrValue emptyOrOldValue = Element()->WillChangePathSegList();
  if (ItemAt(aIndex)) {
    // Notify any existing DOM item of removal *before* modifying the lists so
    // that the DOM item can copy the *old* value at its index:
    ItemAt(aIndex)->RemovingFromList();
  }

  uint32_t internalIndex = mItems[aIndex].mInternalDataIndex;
  // We use InternalList() to get oldArgCount since we may not have a DOM
  // wrapper at the index being replaced.
  uint32_t oldType = SVGPathSegUtils::DecodeType(InternalList().mData[internalIndex]);

  // NOTE: ArgCountForType returns a (small) unsigned value, but we're
  // intentionally putting it in a signed variable, because we're going to
  // subtract these values and might produce something negative.
  int32_t oldArgCount = SVGPathSegUtils::ArgCountForType(oldType);
  int32_t newArgCount = SVGPathSegUtils::ArgCountForType(domItem->Type());

  float segAsRaw[1 + NS_SVG_PATH_SEG_MAX_ARGS];
  domItem->ToSVGPathSegEncodedData(segAsRaw);

  bool ok = !!InternalList().mData.ReplaceElementsAt(
                  internalIndex, 1 + oldArgCount,
                  segAsRaw, 1 + newArgCount);
  if (!ok) {
    aError.Throw(NS_ERROR_OUT_OF_MEMORY);
    return nullptr;
  }
  ItemAt(aIndex) = domItem;

  // This MUST come after the ToSVGPathSegEncodedData call, otherwise that call
  // would end up reading bad data from InternalList()!
  domItem->InsertingIntoList(this, aIndex, IsAnimValList());

  int32_t delta = newArgCount - oldArgCount;
  if (delta != 0) {
    for (uint32_t i = aIndex + 1; i < LengthNoFlush(); ++i) {
      mItems[i].mInternalDataIndex += delta;
    }
  }

  Element()->DidChangePathSegList(emptyOrOldValue);
  if (AttrIsAnimating()) {
    Element()->AnimationNeedsResample();
  }
  return domItem.forget();
}
开发者ID:BitVapor，项目名称:Pale-Moon，代码行数:67，代码来源:DOMSVGPathSegList.cpp



注：本文中的AttrIsAnimating函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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