third_party/WebKit/Source/core/layout/svg/LayoutSVGHiddenContainer.h

   1 /*
   2  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public License
  15  * along with this library; see the file COPYING.LIB.  If not, write to
  16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifndef LayoutSVGHiddenContainer_h
  21 #define LayoutSVGHiddenContainer_h
  22
  23 #include "core/layout/svg/LayoutSVGContainer.h"
  24
  25 namespace blink {
  26
  27 class SVGElement;
  28
  29 // This class is for containers which are never drawn, but do need to support style
  30 // <defs>, <linearGradient>, <radialGradient> are all good examples
  31 class LayoutSVGHiddenContainer : public LayoutSVGContainer {
  32 public:
  33     explicit LayoutSVGHiddenContainer(SVGElement*);
  34
  35     const char* name() const override { return "LayoutSVGHiddenContainer"; }
  36
  37 protected:
  38     void layout() override;
  39
  40     bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectSVGHiddenContainer || LayoutSVGContainer::isOfType(type); }
  41
  42 private:
  43     void paint(const PaintInfo&, const LayoutPoint&) final;
  44     LayoutRect clippedOverflowRectForPaintInvalidation(const LayoutBoxModelObject*, const PaintInvalidationState* = nullptr) const final { return LayoutRect(); }
  45     void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const final;
  46
  47     bool nodeAtFloatPoint(HitTestResult&, const FloatPoint& pointInParent, HitTestAction) final;
  48 };
  49 }
  50
  51 #endif // LayoutSVGHiddenContainer_h