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-rw-r--r--layout/svg/SVGUseFrame.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/layout/svg/SVGUseFrame.h b/layout/svg/SVGUseFrame.h
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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/. */
+
+#ifndef LAYOUT_SVG_SVGUSEFRAME_H_
+#define LAYOUT_SVG_SVGUSEFRAME_H_
+
+// Keep in (case-insensitive) order:
+#include "SVGGFrame.h"
+
+namespace mozilla {
+class PresShell;
+} // namespace mozilla
+
+nsIFrame* NS_NewSVGUseFrame(mozilla::PresShell* aPresShell,
+ mozilla::ComputedStyle* aStyle);
+
+namespace mozilla {
+
+class SVGUseFrame final : public SVGGFrame {
+ friend nsIFrame* ::NS_NewSVGUseFrame(mozilla::PresShell* aPresShell,
+ ComputedStyle* aStyle);
+
+ protected:
+ explicit SVGUseFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
+ : SVGGFrame(aStyle, aPresContext, kClassID), mHasValidDimensions(true) {}
+
+ public:
+ NS_DECL_FRAMEARENA_HELPERS(SVGUseFrame)
+
+ // nsIFrame interface:
+ void Init(nsIContent* aContent, nsContainerFrame* aParent,
+ nsIFrame* aPrevInFlow) override;
+
+ // Called when the href attributes changed.
+ void HrefChanged();
+
+ // Called when the width or height attributes changed.
+ void DimensionAttributeChanged(bool aHadValidDimensions,
+ bool aAttributeIsUsed);
+
+ nsresult AttributeChanged(int32_t aNamespaceID, nsAtom* aAttribute,
+ int32_t aModType) override;
+ void DidSetComputedStyle(ComputedStyle* aOldComputedStyle) override;
+
+#ifdef DEBUG_FRAME_DUMP
+ nsresult GetFrameName(nsAString& aResult) const override {
+ return MakeFrameName(u"SVGUse"_ns, aResult);
+ }
+#endif
+
+ // ISVGDisplayableFrame interface:
+ void ReflowSVG() override;
+ void NotifySVGChanged(uint32_t aFlags) override;
+
+ private:
+ bool mHasValidDimensions;
+};
+
+} // namespace mozilla
+
+#endif // LAYOUT_SVG_SVGUSEFRAME_H_