fab206ec78
The DrawResult return was not in fact anything to do with the success or failure of that method, but was actually passing out a very specific piece of information about the success or failure of any imagelib drawing that may not have occurred under the various PaintSVG calls. The signature of PaintSVG is changed from DrawResult PaintSVG(...., uint32 flags); to void PaintSVG(...., imgDrawingParams& aPackage); imgDrawingParams wraps DrawResult and imgIContainer::FLAG_* as a pack, pass through PaintSVG to imagelib draw calls under beneath. MozReview-Commit-ID: IOq2evUAOQF
339 lines
12 KiB
C++
339 lines
12 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/. */
|
|
|
|
// Main header first:
|
|
#include "nsSVGInnerSVGFrame.h"
|
|
|
|
// Keep others in (case-insensitive) order:
|
|
#include "gfx2DGlue.h"
|
|
#include "gfxContext.h"
|
|
#include "nsIFrame.h"
|
|
#include "nsSVGDisplayableFrame.h"
|
|
#include "nsSVGContainerFrame.h"
|
|
#include "nsSVGIntegrationUtils.h"
|
|
#include "mozilla/dom/SVGSVGElement.h"
|
|
|
|
using namespace mozilla;
|
|
using namespace mozilla::dom;
|
|
using namespace mozilla::gfx;
|
|
using namespace mozilla::image;
|
|
|
|
nsIFrame*
|
|
NS_NewSVGInnerSVGFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
|
|
{
|
|
return new (aPresShell) nsSVGInnerSVGFrame(aContext);
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsSVGInnerSVGFrame)
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsIFrame methods
|
|
|
|
NS_QUERYFRAME_HEAD(nsSVGInnerSVGFrame)
|
|
NS_QUERYFRAME_ENTRY(nsSVGInnerSVGFrame)
|
|
NS_QUERYFRAME_ENTRY(nsISVGSVGFrame)
|
|
NS_QUERYFRAME_TAIL_INHERITING(nsSVGDisplayContainerFrame)
|
|
|
|
#ifdef DEBUG
|
|
void
|
|
nsSVGInnerSVGFrame::Init(nsIContent* aContent,
|
|
nsContainerFrame* aParent,
|
|
nsIFrame* aPrevInFlow)
|
|
{
|
|
NS_ASSERTION(aContent->IsSVGElement(nsGkAtoms::svg),
|
|
"Content is not an SVG 'svg' element!");
|
|
|
|
nsSVGDisplayContainerFrame::Init(aContent, aParent, aPrevInFlow);
|
|
}
|
|
#endif /* DEBUG */
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsSVGDisplayableFrame methods
|
|
|
|
void
|
|
nsSVGInnerSVGFrame::PaintSVG(gfxContext& aContext,
|
|
const gfxMatrix& aTransform,
|
|
imgDrawingParams& aImgParams,
|
|
const nsIntRect *aDirtyRect)
|
|
{
|
|
NS_ASSERTION(!NS_SVGDisplayListPaintingEnabled() ||
|
|
(mState & NS_FRAME_IS_NONDISPLAY),
|
|
"If display lists are enabled, only painting of non-display "
|
|
"SVG should take this code path");
|
|
|
|
gfxContextAutoSaveRestore autoSR;
|
|
|
|
if (StyleDisplay()->IsScrollableOverflow()) {
|
|
float x, y, width, height;
|
|
static_cast<SVGSVGElement*>(mContent)->
|
|
GetAnimatedLengthValues(&x, &y, &width, &height, nullptr);
|
|
|
|
if (width <= 0 || height <= 0) {
|
|
return;
|
|
}
|
|
|
|
autoSR.SetContext(&aContext);
|
|
gfxRect clipRect =
|
|
nsSVGUtils::GetClipRectForFrame(this, x, y, width, height);
|
|
nsSVGUtils::SetClipRect(&aContext, aTransform, clipRect);
|
|
}
|
|
|
|
nsSVGDisplayContainerFrame::PaintSVG(aContext, aTransform, aImgParams,
|
|
aDirtyRect);
|
|
}
|
|
|
|
void
|
|
nsSVGInnerSVGFrame::ReflowSVG()
|
|
{
|
|
// mRect must be set before FinishAndStoreOverflow is called in order
|
|
// for our overflow areas to be clipped correctly.
|
|
float x, y, width, height;
|
|
static_cast<SVGSVGElement*>(mContent)->
|
|
GetAnimatedLengthValues(&x, &y, &width, &height, nullptr);
|
|
mRect = nsLayoutUtils::RoundGfxRectToAppRect(
|
|
gfxRect(x, y, width, height),
|
|
PresContext()->AppUnitsPerCSSPixel());
|
|
|
|
// If we have a filter, we need to invalidate ourselves because filter
|
|
// output can change even if none of our descendants need repainting.
|
|
if (StyleEffects()->HasFilters()) {
|
|
InvalidateFrame();
|
|
}
|
|
|
|
nsSVGDisplayContainerFrame::ReflowSVG();
|
|
}
|
|
|
|
void
|
|
nsSVGInnerSVGFrame::NotifySVGChanged(uint32_t aFlags)
|
|
{
|
|
MOZ_ASSERT(aFlags & (TRANSFORM_CHANGED | COORD_CONTEXT_CHANGED),
|
|
"Invalidation logic may need adjusting");
|
|
|
|
if (aFlags & COORD_CONTEXT_CHANGED) {
|
|
|
|
SVGSVGElement *svg = static_cast<SVGSVGElement*>(mContent);
|
|
|
|
bool xOrYIsPercentage =
|
|
svg->mLengthAttributes[SVGSVGElement::ATTR_X].IsPercentage() ||
|
|
svg->mLengthAttributes[SVGSVGElement::ATTR_Y].IsPercentage();
|
|
bool widthOrHeightIsPercentage =
|
|
svg->mLengthAttributes[SVGSVGElement::ATTR_WIDTH].IsPercentage() ||
|
|
svg->mLengthAttributes[SVGSVGElement::ATTR_HEIGHT].IsPercentage();
|
|
|
|
if (xOrYIsPercentage || widthOrHeightIsPercentage) {
|
|
// Ancestor changes can't affect how we render from the perspective of
|
|
// any rendering observers that we may have, so we don't need to
|
|
// invalidate them. We also don't need to invalidate ourself, since our
|
|
// changed ancestor will have invalidated its entire area, which includes
|
|
// our area.
|
|
// For perf reasons we call this before calling NotifySVGChanged() below.
|
|
nsSVGUtils::ScheduleReflowSVG(this);
|
|
}
|
|
|
|
// Coordinate context changes affect mCanvasTM if we have a
|
|
// percentage 'x' or 'y', or if we have a percentage 'width' or 'height' AND
|
|
// a 'viewBox'.
|
|
|
|
if (!(aFlags & TRANSFORM_CHANGED) &&
|
|
(xOrYIsPercentage ||
|
|
(widthOrHeightIsPercentage && svg->HasViewBoxRect()))) {
|
|
aFlags |= TRANSFORM_CHANGED;
|
|
}
|
|
|
|
if (svg->HasViewBoxRect() || !widthOrHeightIsPercentage) {
|
|
// Remove COORD_CONTEXT_CHANGED, since we establish the coordinate
|
|
// context for our descendants and this notification won't change its
|
|
// dimensions:
|
|
aFlags &= ~COORD_CONTEXT_CHANGED;
|
|
|
|
if (!aFlags) {
|
|
return; // No notification flags left
|
|
}
|
|
}
|
|
}
|
|
|
|
if (aFlags & TRANSFORM_CHANGED) {
|
|
// make sure our cached transform matrix gets (lazily) updated
|
|
mCanvasTM = nullptr;
|
|
}
|
|
|
|
nsSVGDisplayContainerFrame::NotifySVGChanged(aFlags);
|
|
}
|
|
|
|
SVGBBox
|
|
nsSVGInnerSVGFrame::GetBBoxContribution(const Matrix &aToBBoxUserspace,
|
|
uint32_t aFlags)
|
|
{
|
|
// XXXjwatt It seems like authors would want the result to be clipped by the
|
|
// viewport we establish if IsScrollableOverflow() is true. We should
|
|
// consider doing that. See bug 1350755.
|
|
|
|
SVGBBox bbox;
|
|
|
|
if (aFlags & nsSVGUtils::eForGetClientRects) {
|
|
// XXXjwatt For consistency with the old code this code includes the
|
|
// viewport we establish in the result, but only includes the bounds of our
|
|
// descendants if they are not clipped to that viewport. However, this is
|
|
// both inconsistent with Chrome and with the specs. See bug 1350755.
|
|
// Ideally getClientRects/getBoundingClientRect should be consistent with
|
|
// getBBox.
|
|
float x, y, w, h;
|
|
static_cast<SVGSVGElement*>(mContent)->
|
|
GetAnimatedLengthValues(&x, &y, &w, &h, nullptr);
|
|
if (w < 0.0f) w = 0.0f;
|
|
if (h < 0.0f) h = 0.0f;
|
|
Rect viewport(x, y, w, h);
|
|
bbox = aToBBoxUserspace.TransformBounds(viewport);
|
|
if (StyleDisplay()->IsScrollableOverflow()) {
|
|
return bbox;
|
|
}
|
|
// Else we're not clipping to our viewport so we fall through and include
|
|
// the bounds of our children.
|
|
}
|
|
|
|
SVGBBox descendantsBbox =
|
|
nsSVGDisplayContainerFrame::GetBBoxContribution(aToBBoxUserspace, aFlags);
|
|
|
|
bbox.UnionEdges(descendantsBbox);
|
|
|
|
return bbox;
|
|
}
|
|
|
|
nsresult
|
|
nsSVGInnerSVGFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
int32_t aModType)
|
|
{
|
|
if (aNameSpaceID == kNameSpaceID_None &&
|
|
!(GetStateBits() & NS_FRAME_IS_NONDISPLAY)) {
|
|
|
|
SVGSVGElement* content = static_cast<SVGSVGElement*>(mContent);
|
|
|
|
if (aAttribute == nsGkAtoms::width ||
|
|
aAttribute == nsGkAtoms::height) {
|
|
nsLayoutUtils::PostRestyleEvent(
|
|
mContent->AsElement(), nsRestyleHint(0),
|
|
nsChangeHint_InvalidateRenderingObservers);
|
|
nsSVGUtils::ScheduleReflowSVG(this);
|
|
|
|
if (content->HasViewBoxOrSyntheticViewBox()) {
|
|
// make sure our cached transform matrix gets (lazily) updated
|
|
mCanvasTM = nullptr;
|
|
content->ChildrenOnlyTransformChanged();
|
|
nsSVGUtils::NotifyChildrenOfSVGChange(this, TRANSFORM_CHANGED);
|
|
} else {
|
|
uint32_t flags = COORD_CONTEXT_CHANGED;
|
|
if (mCanvasTM && mCanvasTM->IsSingular()) {
|
|
mCanvasTM = nullptr;
|
|
flags |= TRANSFORM_CHANGED;
|
|
}
|
|
nsSVGUtils::NotifyChildrenOfSVGChange(this, flags);
|
|
}
|
|
|
|
} else if (aAttribute == nsGkAtoms::transform ||
|
|
aAttribute == nsGkAtoms::preserveAspectRatio ||
|
|
aAttribute == nsGkAtoms::viewBox ||
|
|
aAttribute == nsGkAtoms::x ||
|
|
aAttribute == nsGkAtoms::y) {
|
|
// make sure our cached transform matrix gets (lazily) updated
|
|
mCanvasTM = nullptr;
|
|
|
|
nsSVGUtils::NotifyChildrenOfSVGChange(
|
|
this, aAttribute == nsGkAtoms::viewBox ?
|
|
TRANSFORM_CHANGED | COORD_CONTEXT_CHANGED : TRANSFORM_CHANGED);
|
|
|
|
// We don't invalidate for transform changes (the layers code does that).
|
|
// Also note that SVGTransformableElement::GetAttributeChangeHint will
|
|
// return nsChangeHint_UpdateOverflow for "transform" attribute changes
|
|
// and cause DoApplyRenderingChangeToTree to make the SchedulePaint call.
|
|
|
|
if (aAttribute == nsGkAtoms::x || aAttribute == nsGkAtoms::y) {
|
|
nsLayoutUtils::PostRestyleEvent(
|
|
mContent->AsElement(), nsRestyleHint(0),
|
|
nsChangeHint_InvalidateRenderingObservers);
|
|
nsSVGUtils::ScheduleReflowSVG(this);
|
|
} else if (aAttribute == nsGkAtoms::viewBox ||
|
|
(aAttribute == nsGkAtoms::preserveAspectRatio &&
|
|
content->HasViewBoxOrSyntheticViewBox())) {
|
|
content->ChildrenOnlyTransformChanged();
|
|
// SchedulePaint sets a global state flag so we only need to call it once
|
|
// (on ourself is fine), not once on each child (despite bug 828240).
|
|
SchedulePaint();
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIFrame*
|
|
nsSVGInnerSVGFrame::GetFrameForPoint(const gfxPoint& aPoint)
|
|
{
|
|
NS_ASSERTION(!NS_SVGDisplayListHitTestingEnabled() ||
|
|
(mState & NS_FRAME_IS_NONDISPLAY),
|
|
"If display lists are enabled, only hit-testing of non-display "
|
|
"SVG should take this code path");
|
|
|
|
if (StyleDisplay()->IsScrollableOverflow()) {
|
|
Rect clip;
|
|
static_cast<nsSVGElement*>(mContent)->
|
|
GetAnimatedLengthValues(&clip.x, &clip.y,
|
|
&clip.width, &clip.height, nullptr);
|
|
if (!clip.Contains(ToPoint(aPoint))) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
return nsSVGDisplayContainerFrame::GetFrameForPoint(aPoint);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsISVGSVGFrame methods:
|
|
|
|
void
|
|
nsSVGInnerSVGFrame::NotifyViewportOrTransformChanged(uint32_t aFlags)
|
|
{
|
|
// The dimensions of inner-<svg> frames are purely defined by their "width"
|
|
// and "height" attributes, and transform changes can only occur as a result
|
|
// of changes to their "width", "height", "viewBox" or "preserveAspectRatio"
|
|
// attributes. Changes to all of these attributes are handled in
|
|
// AttributeChanged(), so we should never be called.
|
|
NS_ERROR("Not called for nsSVGInnerSVGFrame");
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsSVGContainerFrame methods:
|
|
|
|
gfxMatrix
|
|
nsSVGInnerSVGFrame::GetCanvasTM()
|
|
{
|
|
if (!mCanvasTM) {
|
|
NS_ASSERTION(GetParent(), "null parent");
|
|
|
|
nsSVGContainerFrame *parent = static_cast<nsSVGContainerFrame*>(GetParent());
|
|
SVGSVGElement *content = static_cast<SVGSVGElement*>(mContent);
|
|
|
|
gfxMatrix tm = content->PrependLocalTransformsTo(parent->GetCanvasTM());
|
|
|
|
mCanvasTM = new gfxMatrix(tm);
|
|
}
|
|
return *mCanvasTM;
|
|
}
|
|
|
|
bool
|
|
nsSVGInnerSVGFrame::HasChildrenOnlyTransform(gfx::Matrix *aTransform) const
|
|
{
|
|
SVGSVGElement *content = static_cast<SVGSVGElement*>(mContent);
|
|
|
|
if (content->HasViewBoxOrSyntheticViewBox()) {
|
|
// XXX Maybe return false if the transform is the identity transform?
|
|
if (aTransform) {
|
|
*aTransform = content->GetViewBoxTransform();
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|