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/* -*- 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 "mozilla/dom/SVGGraphicsElement.h"
#include "mozilla/dom/BindContext.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/SVGGraphicsElementBinding.h"
#include "mozilla/dom/SVGMatrix.h"
#include "mozilla/dom/SVGRect.h"
#include "mozilla/dom/SVGSVGElement.h"
#include "mozilla/ISVGDisplayableFrame.h"
#include "mozilla/SVGContentUtils.h"
#include "mozilla/SVGTextFrame.h"
#include "mozilla/SVGUtils.h"
#include "nsIContentInlines.h"
#include "nsLayoutUtils.h"
namespace mozilla::dom {
//----------------------------------------------------------------------
// nsISupports methods
NS_IMPL_ADDREF_INHERITED(SVGGraphicsElement, SVGGraphicsElementBase)
NS_IMPL_RELEASE_INHERITED(SVGGraphicsElement, SVGGraphicsElementBase)
NS_INTERFACE_MAP_BEGIN(SVGGraphicsElement)
NS_INTERFACE_MAP_ENTRY(mozilla::dom::SVGTests)
NS_INTERFACE_MAP_END_INHERITING(SVGGraphicsElementBase)
//----------------------------------------------------------------------
// Implementation
SVGGraphicsElement::SVGGraphicsElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
: SVGGraphicsElementBase(std::move(aNodeInfo)) {}
SVGElement* SVGGraphicsElement::GetNearestViewportElement() {
return SVGContentUtils::GetNearestViewportElement(this);
}
SVGElement* SVGGraphicsElement::GetFarthestViewportElement() {
return SVGContentUtils::GetOuterSVGElement(this);
}
static already_AddRefed<SVGRect> ZeroBBox(SVGGraphicsElement& aOwner) {
return MakeAndAddRef<SVGRect>(&aOwner, gfx::Rect{0, 0, 0, 0});
}
already_AddRefed<SVGRect> SVGGraphicsElement::GetBBox(
const SVGBoundingBoxOptions& aOptions) {
nsIFrame* frame = GetPrimaryFrame(FlushType::Layout);
if (!frame || frame->HasAnyStateBits(NS_FRAME_IS_NONDISPLAY)) {
return ZeroBBox(*this);
}
ISVGDisplayableFrame* svgframe = do_QueryFrame(frame);
if (!svgframe) {
if (!frame->IsInSVGTextSubtree()) {
return ZeroBBox(*this);
}
// For <tspan>, <textPath>, the frame is an nsInlineFrame or
// nsBlockFrame, |svgframe| will be a nullptr.
// We implement their getBBox directly here instead of in
// SVGUtils::GetBBox, because SVGUtils::GetBBox is more
// or less used for other purpose elsewhere. e.g. gradient
// code assumes GetBBox of <tspan> returns the bbox of the
// outer <text>.
// TODO: cleanup this sort of usecase of SVGUtils::GetBBox,
// then move this code SVGUtils::GetBBox.
SVGTextFrame* text =
static_cast<SVGTextFrame*>(nsLayoutUtils::GetClosestFrameOfType(
frame->GetParent(), LayoutFrameType::SVGText));
if (text->HasAnyStateBits(NS_FRAME_IS_NONDISPLAY)) {
return ZeroBBox(*this);
}
gfxRect rec = text->TransformFrameRectFromTextChild(
frame->GetRectRelativeToSelf(), frame);
// Should also add the |x|, |y| of the SVGTextFrame itself, since
// the result obtained by TransformFrameRectFromTextChild doesn't
// include them.
rec.x += float(text->GetPosition().x) / AppUnitsPerCSSPixel();
rec.y += float(text->GetPosition().y) / AppUnitsPerCSSPixel();
return do_AddRef(new SVGRect(this, ToRect(rec)));
}
if (!NS_SVGNewGetBBoxEnabled()) {
return do_AddRef(new SVGRect(
this, ToRect(SVGUtils::GetBBox(
frame, SVGUtils::eBBoxIncludeFillGeometry |
SVGUtils::eUseUserSpaceOfUseElement))));
}
uint32_t flags = 0;
if (aOptions.mFill) {
flags |= SVGUtils::eBBoxIncludeFill;
}
if (aOptions.mStroke) {
flags |= SVGUtils::eBBoxIncludeStroke;
}
if (aOptions.mMarkers) {
flags |= SVGUtils::eBBoxIncludeMarkers;
}
if (aOptions.mClipped) {
flags |= SVGUtils::eBBoxIncludeClipped;
}
if (flags == 0) {
return do_AddRef(new SVGRect(this, gfx::Rect()));
}
if (flags == SVGUtils::eBBoxIncludeMarkers ||
flags == SVGUtils::eBBoxIncludeClipped) {
flags |= SVGUtils::eBBoxIncludeFill;
}
flags |= SVGUtils::eUseUserSpaceOfUseElement;
return do_AddRef(new SVGRect(this, ToRect(SVGUtils::GetBBox(frame, flags))));
}
already_AddRefed<SVGMatrix> SVGGraphicsElement::GetCTM() {
if (auto* currentDoc = GetComposedDoc()) {
// Flush all pending notifications so that our frames are up to date
currentDoc->FlushPendingNotifications(FlushType::Layout);
}
gfx::Matrix m = SVGContentUtils::GetCTM(this);
RefPtr<SVGMatrix> mat =
m.IsSingular() ? nullptr : new SVGMatrix(ThebesMatrix(m));
return mat.forget();
}
already_AddRefed<SVGMatrix> SVGGraphicsElement::GetScreenCTM() {
if (auto* currentDoc = GetComposedDoc()) {
// Flush all pending notifications so that our frames are up to date
currentDoc->FlushPendingNotifications(FlushType::Layout);
}
gfx::Matrix m = SVGContentUtils::GetScreenCTM(this);
RefPtr<SVGMatrix> mat =
m.IsSingular() ? nullptr : new SVGMatrix(ThebesMatrix(m));
return mat.forget();
}
bool SVGGraphicsElement::IsSVGFocusable(bool* aIsFocusable,
int32_t* aTabIndex) {
// XXXedgar, maybe we could factor out the common code for SVG, HTML and
// MathML elements, see bug 1586011.
if (!IsInComposedDoc() || IsInDesignMode()) {
// In designMode documents we only allow focusing the document.
*aTabIndex = -1;
*aIsFocusable = false;
return true;
}
*aTabIndex = TabIndex();
// If a tabindex is specified at all, or the default tabindex is 0, we're
// focusable
*aIsFocusable = *aTabIndex >= 0 || GetTabIndexAttrValue().isSome();
return false;
}
Focusable SVGGraphicsElement::IsFocusableWithoutStyle(IsFocusableFlags) {
Focusable result;
IsSVGFocusable(&result.mFocusable, &result.mTabIndex);
return result;
}
} // namespace mozilla::dom
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