text: /*
   * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
   *           (C) 2000 Simon Hausmann <hausmann@kde.org>
   * Copyright (C) 2006, 2009 Apple Inc. All rights reserved.
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Library General Public
   * License as published by the Free Software Foundation; either
   * version 2 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Library General Public License for more details.
   *
   * You should have received a copy of the GNU Library General Public License
   * along with this library; see the file COPYING.LIB.  If not, write to
   * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   *
   */
  
  #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_LAYOUT_EMBEDDED_CONTENT_H_
  #define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_LAYOUT_EMBEDDED_CONTENT_H_
  
  #include "third_party/blink/renderer/core/core_export.h"
  #include "third_party/blink/renderer/core/html/html_frame_owner_element.h"
  #include "third_party/blink/renderer/core/layout/layout_replaced.h"
  
  namespace blink {
  
  class EmbeddedContentView;
  class FrameView;
  class WebPluginContainerImpl;
  
  // LayoutObject for frames via LayoutFrame and LayoutIFrame, and plugins via
  // LayoutEmbeddedObject.
  class CORE_EXPORT LayoutEmbeddedContent : public LayoutReplaced {
   public:
    explicit LayoutEmbeddedContent(HTMLFrameOwnerElement*);
    ~LayoutEmbeddedContent() override;
  
    bool RequiresAcceleratedCompositing() const;
  
    bool NodeAtPoint(HitTestResult&,
                     const HitTestLocation&,
                     const PhysicalOffset& accumulated_offset,
                     HitTestAction) override;
  
    void AddRef() { ++ref_count_; }
    void Release();
  
    // LayoutEmbeddedContent::ChildFrameView returns the LocalFrameView associated
    // with the current Node, if Node is HTMLFrameOwnerElement. This is different
    // to LayoutObject::GetFrameView which returns the LocalFrameView associated
    // with the root Document Frame.
    FrameView* ChildFrameView() const;
    WebPluginContainerImpl* Plugin() const;
    EmbeddedContentView* GetEmbeddedContentView() const;
  
    PhysicalRect ReplacedContentRect() const final;
  
    void UpdateOnEmbeddedContentViewChange();
    void UpdateGeometry(EmbeddedContentView&);
  
    bool IsLayoutEmbeddedContent() const final { return true; }
  
    bool IsThrottledFrameView() const;
  
   protected:
    PaintLayerType LayerTypeRequired() const override;
  
    void StyleDidChange(StyleDifference, const ComputedStyle* old_style) final;
    void UpdateLayout() override;
    void PaintReplaced(const PaintInfo&,
                       const PhysicalOffset& paint_offset) const override;
    void InvalidatePaint(const PaintInvalidatorContext&) const final;
    CursorDirective GetCursor(const PhysicalOffset&, Cursor&) const final;
  
    bool CanBeSelectionLeafInternal() const final { return true; }
  
   private:
    CompositingReasons AdditionalCompositingReasons() const override;
  
    void WillBeDestroyed() final;
    void Destroy() final;
  
    bool NodeAtPointOverEmbeddedContentView(
        HitTestResult&,
        const HitTestLocation&,
        const PhysicalOffset& accumulated_offset,
        HitTestAction);
  
    HTMLFrameOwnerElement* GetFrameOwnerElement() const {
      return To<HTMLFrameOwnerElement>(GetNode());
    }
  
    int ref_count_;
  };
  
  DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutEmbeddedContent,
                                  IsLayoutEmbeddedContent());
  
  }  // namespace blink
  
  #endif  // THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_LAYOUT_EMBEDDED_CONTENT_H_
  