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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /layout/svg/SVGFEContainerFrame.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'layout/svg/SVGFEContainerFrame.cpp')
-rw-r--r--layout/svg/SVGFEContainerFrame.cpp108
1 files changed, 108 insertions, 0 deletions
diff --git a/layout/svg/SVGFEContainerFrame.cpp b/layout/svg/SVGFEContainerFrame.cpp
new file mode 100644
index 000000000..ef86470f2
--- /dev/null
+++ b/layout/svg/SVGFEContainerFrame.cpp
@@ -0,0 +1,108 @@
+/* -*- 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/. */
+
+// Keep in (case-insensitive) order:
+#include "nsContainerFrame.h"
+#include "nsGkAtoms.h"
+#include "nsIFrame.h"
+#include "nsLiteralString.h"
+#include "nsSVGEffects.h"
+#include "nsSVGFilters.h"
+
+/*
+ * This frame is used by filter primitive elements that
+ * have special child elements that provide parameters.
+ */
+class SVGFEContainerFrame : public nsContainerFrame
+{
+ friend nsIFrame*
+ NS_NewSVGFEContainerFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
+protected:
+ explicit SVGFEContainerFrame(nsStyleContext* aContext)
+ : nsContainerFrame(aContext)
+ {
+ AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_IS_NONDISPLAY);
+ }
+
+public:
+ NS_DECL_FRAMEARENA_HELPERS
+
+ virtual bool IsFrameOfType(uint32_t aFlags) const override
+ {
+ return nsContainerFrame::IsFrameOfType(
+ aFlags & ~(nsIFrame::eSVG | nsIFrame::eSVGContainer));
+ }
+
+#ifdef DEBUG_FRAME_DUMP
+ virtual nsresult GetFrameName(nsAString& aResult) const override
+ {
+ return MakeFrameName(NS_LITERAL_STRING("SVGFEContainer"), aResult);
+ }
+#endif
+
+#ifdef DEBUG
+ virtual void Init(nsIContent* aContent,
+ nsContainerFrame* aParent,
+ nsIFrame* aPrevInFlow) override;
+#endif
+ /**
+ * Get the "type" of the frame
+ *
+ * @see nsGkAtoms::svgFEContainerFrame
+ */
+ virtual nsIAtom* GetType() const override;
+
+ virtual nsresult AttributeChanged(int32_t aNameSpaceID,
+ nsIAtom* aAttribute,
+ int32_t aModType) override;
+
+ virtual bool ComputeCustomOverflow(nsOverflowAreas& aOverflowAreas) override {
+ // We don't maintain a visual overflow rect
+ return false;
+ }
+};
+
+nsIFrame*
+NS_NewSVGFEContainerFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
+{
+ return new (aPresShell) SVGFEContainerFrame(aContext);
+}
+
+NS_IMPL_FRAMEARENA_HELPERS(SVGFEContainerFrame)
+
+#ifdef DEBUG
+void
+SVGFEContainerFrame::Init(nsIContent* aContent,
+ nsContainerFrame* aParent,
+ nsIFrame* aPrevInFlow)
+{
+ NS_ASSERTION(aContent->IsNodeOfType(nsINode::eFILTER),
+ "Trying to construct an SVGFEContainerFrame for a "
+ "content element that doesn't support the right interfaces");
+
+ nsContainerFrame::Init(aContent, aParent, aPrevInFlow);
+}
+#endif /* DEBUG */
+
+nsIAtom *
+SVGFEContainerFrame::GetType() const
+{
+ return nsGkAtoms::svgFEContainerFrame;
+}
+
+nsresult
+SVGFEContainerFrame::AttributeChanged(int32_t aNameSpaceID,
+ nsIAtom* aAttribute,
+ int32_t aModType)
+{
+ nsSVGFE *element = static_cast<nsSVGFE*>(mContent);
+ if (element->AttributeAffectsRendering(aNameSpaceID, aAttribute)) {
+ MOZ_ASSERT(GetParent()->GetType() == nsGkAtoms::svgFilterFrame,
+ "Observers observe the filter, so that's what we must invalidate");
+ nsSVGEffects::InvalidateDirectRenderingObservers(GetParent());
+ }
+
+ return nsContainerFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
+}