mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
271 lines
8.7 KiB
C++
271 lines
8.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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 "gfx2DGlue.h"
|
|
#include "mozilla/dom/SVGAnimatedTransformList.h"
|
|
#include "mozilla/dom/SVGGraphicsElementBinding.h"
|
|
#include "mozilla/dom/SVGTransformableElement.h"
|
|
#include "mozilla/dom/SVGMatrix.h"
|
|
#include "mozilla/dom/SVGSVGElement.h"
|
|
#include "nsContentUtils.h"
|
|
#include "nsIDOMMutationEvent.h"
|
|
#include "nsIFrame.h"
|
|
#include "nsISVGChildFrame.h"
|
|
#include "mozilla/dom/SVGRect.h"
|
|
#include "nsSVGUtils.h"
|
|
#include "SVGContentUtils.h"
|
|
|
|
using namespace mozilla::gfx;
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
already_AddRefed<SVGAnimatedTransformList>
|
|
SVGTransformableElement::Transform()
|
|
{
|
|
// We're creating a DOM wrapper, so we must tell GetAnimatedTransformList
|
|
// to allocate the SVGAnimatedTransformList if it hasn't already done so:
|
|
return SVGAnimatedTransformList::GetDOMWrapper(
|
|
GetAnimatedTransformList(DO_ALLOCATE), this);
|
|
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsIContent methods
|
|
|
|
NS_IMETHODIMP_(bool)
|
|
SVGTransformableElement::IsAttributeMapped(const nsIAtom* name) const
|
|
{
|
|
static const MappedAttributeEntry* const map[] = {
|
|
sColorMap,
|
|
sFillStrokeMap,
|
|
sGraphicsMap
|
|
};
|
|
|
|
return FindAttributeDependence(name, map) ||
|
|
nsSVGElement::IsAttributeMapped(name);
|
|
}
|
|
|
|
nsChangeHint
|
|
SVGTransformableElement::GetAttributeChangeHint(const nsIAtom* aAttribute,
|
|
int32_t aModType) const
|
|
{
|
|
nsChangeHint retval =
|
|
nsSVGElement::GetAttributeChangeHint(aAttribute, aModType);
|
|
if (aAttribute == nsGkAtoms::transform ||
|
|
aAttribute == nsGkAtoms::mozAnimateMotionDummyAttr) {
|
|
nsIFrame* frame =
|
|
const_cast<SVGTransformableElement*>(this)->GetPrimaryFrame();
|
|
NS_UpdateHint(retval, nsChangeHint_InvalidateRenderingObservers);
|
|
if (!frame || (frame->GetStateBits() & NS_FRAME_IS_NONDISPLAY)) {
|
|
return retval;
|
|
}
|
|
if (aModType == nsIDOMMutationEvent::ADDITION ||
|
|
aModType == nsIDOMMutationEvent::REMOVAL ||
|
|
(aModType == nsIDOMMutationEvent::MODIFICATION &&
|
|
!(mTransforms && mTransforms->HasTransform()))) {
|
|
// Reconstruct the frame tree to handle stacking context changes:
|
|
NS_UpdateHint(retval, nsChangeHint_ReconstructFrame);
|
|
} else {
|
|
NS_ABORT_IF_FALSE(aModType == nsIDOMMutationEvent::MODIFICATION,
|
|
"Unknown modification type.");
|
|
// We just assume the old and new transforms are different.
|
|
NS_UpdateHint(retval, NS_CombineHint(nsChangeHint_UpdatePostTransformOverflow,
|
|
nsChangeHint_UpdateTransformLayer));
|
|
}
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
bool
|
|
SVGTransformableElement::IsEventAttributeName(nsIAtom* aName)
|
|
{
|
|
return nsContentUtils::IsEventAttributeName(aName, EventNameType_SVGGraphic);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsSVGElement overrides
|
|
|
|
gfxMatrix
|
|
SVGTransformableElement::PrependLocalTransformsTo(const gfxMatrix &aMatrix,
|
|
TransformTypes aWhich) const
|
|
{
|
|
gfxMatrix result(aMatrix);
|
|
|
|
if (aWhich == eChildToUserSpace) {
|
|
// We don't have anything to prepend.
|
|
// eChildToUserSpace is not the common case, which is why we return
|
|
// 'result' to benefit from NRVO rather than returning aMatrix before
|
|
// creating 'result'.
|
|
return result;
|
|
}
|
|
|
|
NS_ABORT_IF_FALSE(aWhich == eAllTransforms || aWhich == eUserSpaceToParent,
|
|
"Unknown TransformTypes");
|
|
|
|
// animateMotion's resulting transform is supposed to apply *on top of*
|
|
// any transformations from the |transform| attribute. So since we're
|
|
// PRE-multiplying, we need to apply the animateMotion transform *first*.
|
|
if (mAnimateMotionTransform) {
|
|
result.PreMultiply(ThebesMatrix(*mAnimateMotionTransform));
|
|
}
|
|
|
|
if (mTransforms) {
|
|
result.PreMultiply(mTransforms->GetAnimValue().GetConsolidationMatrix());
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
const gfx::Matrix*
|
|
SVGTransformableElement::GetAnimateMotionTransform() const
|
|
{
|
|
return mAnimateMotionTransform.get();
|
|
}
|
|
|
|
void
|
|
SVGTransformableElement::SetAnimateMotionTransform(const gfx::Matrix* aMatrix)
|
|
{
|
|
if ((!aMatrix && !mAnimateMotionTransform) ||
|
|
(aMatrix && mAnimateMotionTransform && *aMatrix == *mAnimateMotionTransform)) {
|
|
return;
|
|
}
|
|
bool transformSet = mTransforms && mTransforms->IsExplicitlySet();
|
|
bool prevSet = mAnimateMotionTransform || transformSet;
|
|
mAnimateMotionTransform = aMatrix ? new gfx::Matrix(*aMatrix) : nullptr;
|
|
bool nowSet = mAnimateMotionTransform || transformSet;
|
|
int32_t modType;
|
|
if (prevSet && !nowSet) {
|
|
modType = nsIDOMMutationEvent::REMOVAL;
|
|
} else if(!prevSet && nowSet) {
|
|
modType = nsIDOMMutationEvent::ADDITION;
|
|
} else {
|
|
modType = nsIDOMMutationEvent::MODIFICATION;
|
|
}
|
|
DidAnimateTransformList(modType);
|
|
nsIFrame* frame = GetPrimaryFrame();
|
|
if (frame) {
|
|
// If the result of this transform and any other transforms on this frame
|
|
// is the identity matrix, then DoApplyRenderingChangeToTree won't handle
|
|
// our nsChangeHint_UpdateTransformLayer hint since aFrame->IsTransformed()
|
|
// will return false. That's fine, but we still need to schedule a repaint,
|
|
// and that won't otherwise happen. Since it's cheap to call SchedulePaint,
|
|
// we don't bother to check IsTransformed().
|
|
frame->SchedulePaint();
|
|
}
|
|
}
|
|
|
|
nsSVGAnimatedTransformList*
|
|
SVGTransformableElement::GetAnimatedTransformList(uint32_t aFlags)
|
|
{
|
|
if (!mTransforms && (aFlags & DO_ALLOCATE)) {
|
|
mTransforms = new nsSVGAnimatedTransformList();
|
|
}
|
|
return mTransforms;
|
|
}
|
|
|
|
nsSVGElement*
|
|
SVGTransformableElement::GetNearestViewportElement()
|
|
{
|
|
return SVGContentUtils::GetNearestViewportElement(this);
|
|
}
|
|
|
|
nsSVGElement*
|
|
SVGTransformableElement::GetFarthestViewportElement()
|
|
{
|
|
return SVGContentUtils::GetOuterSVGElement(this);
|
|
}
|
|
|
|
already_AddRefed<SVGIRect>
|
|
SVGTransformableElement::GetBBox(const SVGBoundingBoxOptions& aOptions,
|
|
ErrorResult& rv)
|
|
{
|
|
nsIFrame* frame = GetPrimaryFrame(Flush_Layout);
|
|
|
|
if (!frame || (frame->GetStateBits() & NS_FRAME_IS_NONDISPLAY)) {
|
|
rv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
nsISVGChildFrame* svgframe = do_QueryFrame(frame);
|
|
if (!svgframe) {
|
|
rv.Throw(NS_ERROR_NOT_IMPLEMENTED); // XXX: outer svg
|
|
return nullptr;
|
|
}
|
|
|
|
if (!NS_SVGNewGetBBoxEnabled()) {
|
|
return NS_NewSVGRect(this, ToRect(nsSVGUtils::GetBBox(frame)));
|
|
} else {
|
|
uint32_t aFlags = 0;
|
|
if (aOptions.mFill) {
|
|
aFlags |= nsSVGUtils::eBBoxIncludeFill;
|
|
}
|
|
if (aOptions.mStroke) {
|
|
aFlags |= nsSVGUtils::eBBoxIncludeStroke;
|
|
}
|
|
if (aOptions.mMarkers) {
|
|
aFlags |= nsSVGUtils::eBBoxIncludeMarkers;
|
|
}
|
|
if (aOptions.mClipped) {
|
|
aFlags |= nsSVGUtils::eBBoxIncludeClipped;
|
|
}
|
|
if (aFlags == 0) {
|
|
return NS_NewSVGRect(this,0,0,0,0);
|
|
}
|
|
if (aFlags == nsSVGUtils::eBBoxIncludeMarkers ||
|
|
aFlags == nsSVGUtils::eBBoxIncludeClipped) {
|
|
aFlags |= nsSVGUtils::eBBoxIncludeFill;
|
|
}
|
|
return NS_NewSVGRect(this, ToRect(nsSVGUtils::GetBBox(frame, aFlags)));
|
|
}
|
|
}
|
|
|
|
already_AddRefed<SVGMatrix>
|
|
SVGTransformableElement::GetCTM()
|
|
{
|
|
nsIDocument* currentDoc = GetComposedDoc();
|
|
if (currentDoc) {
|
|
// Flush all pending notifications so that our frames are up to date
|
|
currentDoc->FlushPendingNotifications(Flush_Layout);
|
|
}
|
|
gfx::Matrix m = SVGContentUtils::GetCTM(this, false);
|
|
nsRefPtr<SVGMatrix> mat = m.IsSingular() ? nullptr : new SVGMatrix(ThebesMatrix(m));
|
|
return mat.forget();
|
|
}
|
|
|
|
already_AddRefed<SVGMatrix>
|
|
SVGTransformableElement::GetScreenCTM()
|
|
{
|
|
nsIDocument* currentDoc = GetComposedDoc();
|
|
if (currentDoc) {
|
|
// Flush all pending notifications so that our frames are up to date
|
|
currentDoc->FlushPendingNotifications(Flush_Layout);
|
|
}
|
|
gfx::Matrix m = SVGContentUtils::GetCTM(this, true);
|
|
nsRefPtr<SVGMatrix> mat = m.IsSingular() ? nullptr : new SVGMatrix(ThebesMatrix(m));
|
|
return mat.forget();
|
|
}
|
|
|
|
already_AddRefed<SVGMatrix>
|
|
SVGTransformableElement::GetTransformToElement(SVGGraphicsElement& aElement,
|
|
ErrorResult& rv)
|
|
{
|
|
// the easiest way to do this (if likely to increase rounding error):
|
|
nsRefPtr<SVGMatrix> ourScreenCTM = GetScreenCTM();
|
|
nsRefPtr<SVGMatrix> targetScreenCTM = aElement.GetScreenCTM();
|
|
if (!ourScreenCTM || !targetScreenCTM) {
|
|
rv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return nullptr;
|
|
}
|
|
nsRefPtr<SVGMatrix> tmp = targetScreenCTM->Inverse(rv);
|
|
if (rv.Failed()) return nullptr;
|
|
|
|
nsRefPtr<SVGMatrix> mat = tmp->Multiply(*ourScreenCTM);
|
|
return mat.forget();
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|