tor-browser

The Tor Browser
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SVGUseFrame.h (1880B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef LAYOUT_SVG_SVGUSEFRAME_H_
      8 #define LAYOUT_SVG_SVGUSEFRAME_H_
      9 
     10 // Keep in (case-insensitive) order:
     11 #include "SVGGFrame.h"
     12 
     13 namespace mozilla {
     14 class PresShell;
     15 }  // namespace mozilla
     16 
     17 nsIFrame* NS_NewSVGUseFrame(mozilla::PresShell* aPresShell,
     18                            mozilla::ComputedStyle* aStyle);
     19 
     20 namespace mozilla {
     21 
     22 class SVGUseFrame final : public SVGGFrame {
     23  friend nsIFrame* ::NS_NewSVGUseFrame(mozilla::PresShell* aPresShell,
     24                                       ComputedStyle* aStyle);
     25 
     26 protected:
     27  explicit SVGUseFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
     28      : SVGGFrame(aStyle, aPresContext, kClassID), mHasValidDimensions(true) {}
     29 
     30 public:
     31  NS_DECL_FRAMEARENA_HELPERS(SVGUseFrame)
     32 
     33  // nsIFrame interface:
     34  void Init(nsIContent* aContent, nsContainerFrame* aParent,
     35            nsIFrame* aPrevInFlow) override;
     36 
     37  // Called when the href attributes changed.
     38  void HrefChanged();
     39 
     40  // Called when the width or height attributes changed.
     41  void DimensionAttributeChanged(bool aHadValidDimensions,
     42                                 bool aAttributeIsUsed);
     43 
     44  void DidSetComputedStyle(ComputedStyle* aOldComputedStyle) override;
     45 
     46 #ifdef DEBUG_FRAME_DUMP
     47  nsresult GetFrameName(nsAString& aResult) const override {
     48    return MakeFrameName(u"SVGUse"_ns, aResult);
     49  }
     50 #endif
     51 
     52  // ISVGDisplayableFrame interface:
     53  void ReflowSVG() override;
     54  void NotifySVGChanged(ChangeFlags aFlags) override;
     55 
     56 private:
     57  bool mHasValidDimensions;
     58 };
     59 
     60 }  // namespace mozilla
     61 
     62 #endif  // LAYOUT_SVG_SVGUSEFRAME_H_