1 files changed, 147 insertions, 0 deletions
diff --git a/layout/svg/nsSVGPathGeometryFrame.h b/layout/svg/nsSVGPathGeometryFrame.h
new file mode 100644
index 000000000..6b7c75d97
--- /dev/null
+++ b/layout/svg/nsSVGPathGeometryFrame.h
@@ -0,0 +1,147 @@
+/* -*- 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/. */
+
+#ifndef __NS_SVGPATHGEOMETRYFRAME_H__
+#define __NS_SVGPATHGEOMETRYFRAME_H__
+
+#include "mozilla/Attributes.h"
+#include "gfxMatrix.h"
+#include "gfxRect.h"
+#include "nsFrame.h"
+#include "nsISVGChildFrame.h"
+#include "nsLiteralString.h"
+#include "nsQueryFrame.h"
+#include "nsSVGUtils.h"
+
+namespace mozilla {
+namespace gfx {
+class DrawTarget;
+} // namespace gfx
+} // namespace mozilla
+
+class gfxContext;
+class nsDisplaySVGPathGeometry;
+class nsIAtom;
+class nsIFrame;
+class nsIPresShell;
+class nsStyleContext;
+class nsSVGMarkerFrame;
+class nsSVGMarkerProperty;
+
+struct nsRect;
+
+class nsSVGPathGeometryFrame : public nsFrame
+                             , public nsISVGChildFrame
+{
+  typedef mozilla::gfx::DrawTarget DrawTarget;
+
+  friend nsIFrame*
+  NS_NewSVGPathGeometryFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
+
+  friend class nsDisplaySVGPathGeometry;
+
+protected:
+  explicit nsSVGPathGeometryFrame(nsStyleContext* aContext)
+    : nsFrame(aContext)
+  {
+     AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_MAY_BE_TRANSFORMED);
+  }
+
+public:
+  NS_DECL_QUERYFRAME_TARGET(nsSVGPathGeometryFrame)
+  NS_DECL_QUERYFRAME
+  NS_DECL_FRAMEARENA_HELPERS
+
+  // nsIFrame interface:
+  virtual void Init(nsIContent*       aContent,
+                    nsContainerFrame* aParent,
+                    nsIFrame*         aPrevInFlow) override;
+
+  virtual bool IsFrameOfType(uint32_t aFlags) const override
+  {
+    return nsFrame::IsFrameOfType(aFlags & ~(nsIFrame::eSVG | nsIFrame::eSVGGeometry));
+  }
+
+  virtual nsresult  AttributeChanged(int32_t         aNameSpaceID,
+                                     nsIAtom*        aAttribute,
+                                     int32_t         aModType) override;
+
+  virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) override;
+
+  /**
+   * Get the "type" of the frame
+   *
+   * @see nsGkAtoms::svgPathGeometryFrame
+   */
+  virtual nsIAtom* GetType() const override;
+
+  virtual bool IsSVGTransformed(Matrix *aOwnTransforms = nullptr,
+                                Matrix *aFromParentTransforms = nullptr) const override;
+
+#ifdef DEBUG_FRAME_DUMP
+  virtual nsresult GetFrameName(nsAString& aResult) const override
+  {
+    return MakeFrameName(NS_LITERAL_STRING("SVGPathGeometry"), aResult);
+  }
+#endif
+
+  virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
+                                const nsRect&           aDirtyRect,
+                                const nsDisplayListSet& aLists) override;
+
+  // nsSVGPathGeometryFrame methods
+  gfxMatrix GetCanvasTM();
+protected:
+  // nsISVGChildFrame interface:
+  virtual DrawResult PaintSVG(gfxContext& aContext,
+                              const gfxMatrix& aTransform,
+                              const nsIntRect* aDirtyRect = nullptr) override;
+  virtual nsIFrame* GetFrameForPoint(const gfxPoint& aPoint) override;
+  virtual nsRect GetCoveredRegion() override;
+  virtual void ReflowSVG() override;
+  virtual void NotifySVGChanged(uint32_t aFlags) override;
+  virtual SVGBBox GetBBoxContribution(const Matrix &aToBBoxUserspace,
+                                      uint32_t aFlags) override;
+  virtual bool IsDisplayContainer() override { return false; }
+
+  /**
+   * This function returns a set of bit flags indicating which parts of the
+   * element (fill, stroke, bounds) should intercept pointer events. It takes
+   * into account the type of element and the value of the 'pointer-events'
+   * property on the element.
+   */
+  virtual uint16_t GetHitTestFlags();
+private:
+  enum { eRenderFill = 1, eRenderStroke = 2 };
+  void Render(gfxContext* aContext, uint32_t aRenderComponents,
+              const gfxMatrix& aTransform);
+
+  /**
+   * @param aMatrix The transform that must be multiplied onto aContext to
+   *   establish this frame's SVG user space.
+   */
+  void PaintMarkers(gfxContext& aContext, const gfxMatrix& aMatrix);
+
+  struct MarkerProperties {
+    nsSVGMarkerProperty* mMarkerStart;
+    nsSVGMarkerProperty* mMarkerMid;
+    nsSVGMarkerProperty* mMarkerEnd;
+
+    bool MarkersExist() const {
+      return mMarkerStart || mMarkerMid || mMarkerEnd;
+    }
+
+    nsSVGMarkerFrame *GetMarkerStartFrame();
+    nsSVGMarkerFrame *GetMarkerMidFrame();
+    nsSVGMarkerFrame *GetMarkerEndFrame();
+  };
+
+  /**
+   * @param aFrame should be the first continuation
+   */
+  static MarkerProperties GetMarkerProperties(nsSVGPathGeometryFrame *aFrame);
+};
+
+#endif // __NS_SVGPATHGEOMETRYFRAME_H__