コード例 #1
0
void
nsSVGAnimatedTransformList::ClearAnimValue(nsSVGElement *aElement)
{
  SVGAnimatedTransformList *domWrapper =
    SVGAnimatedTransformList::GetDOMWrapperIfExists(this);
  if (domWrapper) {
    // When all animation ends, animVal simply mirrors baseVal, which may have
    // a different number of items to the last active animated value. We must
    // keep the length of our animVal's DOM wrapper list in sync, and again we
    // must do that before touching mAnimVal. See comments above.
    //
    domWrapper->InternalAnimValListWillChangeLengthTo(mBaseVal.Length());
  }
  mAnimVal = nullptr;
  aElement->DidAnimateTransformList();
}
コード例 #2
0
nsresult
nsSVGAnimatedTransformList::SetAnimValue(const SVGTransformList& aValue,
                                         nsSVGElement *aElement)
{
  bool prevSet = HasTransform() || aElement->GetAnimateMotionTransform();
  SVGAnimatedTransformList *domWrapper =
    SVGAnimatedTransformList::GetDOMWrapperIfExists(this);
  if (domWrapper) {
    // A new animation may totally change the number of items in the animVal
    // list, replacing what was essentially a mirror of the baseVal list, or
    // else replacing and overriding an existing animation. When this happens
    // we must try and keep our animVal's DOM wrapper in sync (see the comment
    // in SVGAnimatedTransformList::InternalBaseValListWillChangeLengthTo).
    //
    // It's not possible for us to reliably distinguish between calls to this
    // method that are setting a new sample for an existing animation, and
    // calls that are setting the first sample of an animation that will
    // override an existing animation. Happily it's cheap to just blindly
    // notify our animVal's DOM wrapper of its internal counterpart's new value
    // each time this method is called, so that's what we do.
    //
    // Note that we must send this notification *before* setting or changing
    // mAnimVal! (See the comment in SetBaseValueString above.)
    //
    domWrapper->InternalAnimValListWillChangeLengthTo(aValue.Length());
  }
  if (!mAnimVal) {
    mAnimVal = new SVGTransformList();
  }
  nsresult rv = mAnimVal->CopyFrom(aValue);
  if (NS_FAILED(rv)) {
    // OOM. We clear the animation, and, importantly, ClearAnimValue() ensures
    // that mAnimVal and its DOM wrapper (if any) will have the same length!
    ClearAnimValue(aElement);
    return rv;
  }
  int32_t modType;
  if(prevSet) {
    modType = nsIDOMMutationEvent::MODIFICATION;
  } else {
    modType = nsIDOMMutationEvent::ADDITION;
  }
  aElement->DidAnimateTransformList(modType);
  return NS_OK;
}
コード例 #3
0
void
nsSVGAnimatedTransformList::ClearAnimValue(nsSVGElement *aElement)
{
  SVGAnimatedTransformList *domWrapper =
    SVGAnimatedTransformList::GetDOMWrapperIfExists(this);
  if (domWrapper) {
    // When all animation ends, animVal simply mirrors baseVal, which may have
    // a different number of items to the last active animated value. We must
    // keep the length of our animVal's DOM wrapper list in sync, and again we
    // must do that before touching mAnimVal. See comments above.
    //
    domWrapper->InternalAnimValListWillChangeLengthTo(mBaseVal.Length());
  }
  mAnimVal = nullptr;
  int32_t modType;
  if (HasTransform() || aElement->GetAnimateMotionTransform()) {
    modType = nsIDOMMutationEvent::MODIFICATION;
  } else {
    modType = nsIDOMMutationEvent::REMOVAL;
  }
  aElement->DidAnimateTransformList(modType);
}