1 files changed, 92 insertions, 0 deletions
diff --git a/layout/svg/SVGForeignObjectFrame.h b/layout/svg/SVGForeignObjectFrame.h
new file mode 100644
index 0000000000..d2efa184bb
--- /dev/null
+++ b/layout/svg/SVGForeignObjectFrame.h
@@ -0,0 +1,92 @@
+/* -*- 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/. */
+
+#ifndef LAYOUT_SVG_SVGFOREIGNOBJECTFRAME_H_
+#define LAYOUT_SVG_SVGFOREIGNOBJECTFRAME_H_
+
+#include "mozilla/Attributes.h"
+#include "mozilla/ISVGDisplayableFrame.h"
+#include "mozilla/PresShellForwards.h"
+#include "mozilla/UniquePtr.h"
+#include "nsContainerFrame.h"
+
+class gfxContext;
+
+nsContainerFrame* NS_NewSVGForeignObjectFrame(mozilla::PresShell* aPresShell,
+                                              mozilla::ComputedStyle* aStyle);
+
+namespace mozilla {
+
+class SVGForeignObjectFrame final : public nsContainerFrame,
+                                    public ISVGDisplayableFrame {
+  friend nsContainerFrame* ::NS_NewSVGForeignObjectFrame(
+      mozilla::PresShell* aPresShell, ComputedStyle* aStyle);
+
+ protected:
+  explicit SVGForeignObjectFrame(ComputedStyle* aStyle,
+                                 nsPresContext* aPresContext);
+
+ public:
+  NS_DECL_QUERYFRAME
+  NS_DECL_FRAMEARENA_HELPERS(SVGForeignObjectFrame)
+
+  // nsIFrame:
+  void Init(nsIContent* aContent, nsContainerFrame* aParent,
+            nsIFrame* aPrevInFlow) override;
+  nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
+                            int32_t aModType) override;
+
+  nsContainerFrame* GetContentInsertionFrame() override {
+    return PrincipalChildList().FirstChild()->GetContentInsertionFrame();
+  }
+
+  void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
+              const ReflowInput& aReflowInput,
+              nsReflowStatus& aStatus) override;
+
+  void BuildDisplayList(nsDisplayListBuilder* aBuilder,
+                        const nsDisplayListSet& aLists) override;
+
+  bool IsSVGTransformed(Matrix* aOwnTransform,
+                        Matrix* aFromParentTransform) const override;
+
+#ifdef DEBUG_FRAME_DUMP
+  nsresult GetFrameName(nsAString& aResult) const override {
+    return MakeFrameName(u"SVGForeignObject"_ns, aResult);
+  }
+#endif
+
+  // ISVGDisplayableFrame interface:
+  void PaintSVG(gfxContext& aContext, const gfxMatrix& aTransform,
+                imgDrawingParams& aImgParams) override;
+  nsIFrame* GetFrameForPoint(const gfxPoint& aPoint) override;
+  void ReflowSVG() override;
+  void NotifySVGChanged(uint32_t aFlags) override;
+  SVGBBox GetBBoxContribution(const Matrix& aToBBoxUserspace,
+                              uint32_t aFlags) override;
+  bool IsDisplayContainer() override { return true; }
+
+  gfxMatrix GetCanvasTM();
+
+  // Return our ::-moz-svg-foreign-content anonymous box.
+  void AppendDirectlyOwnedAnonBoxes(nsTArray<OwnedAnonBox>& aResult) override;
+
+  void DidSetComputedStyle(ComputedStyle* aOldComputedStyle) override;
+
+ protected:
+  // implementation helpers:
+  void DoReflow();
+  void RequestReflow(IntrinsicDirty aType);
+
+  // If width or height is less than or equal to zero we must disable rendering
+  bool IsDisabled() const { return mRect.width <= 0 || mRect.height <= 0; }
+
+  UniquePtr<gfxMatrix> mCanvasTM;
+};
+
+}  // namespace mozilla
+
+#endif  // LAYOUT_SVG_SVGFOREIGNOBJECTFRAME_H_