third_party/WebKit/Source/core/layout/LayoutEmbeddedObject.h

/*
 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
 *           (C) 2000 Simon Hausmann <hausmann@kde.org>
 * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010, 2012 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 LayoutEmbeddedObject_h
#define LayoutEmbeddedObject_h

#include "core/layout/LayoutEmbeddedContent.h"

namespace blink {

// LayoutObject for embeds and objects, often, but not always, rendered via
// plugins. For example, <embed src="foo.html"> does not invoke a plugin.
class LayoutEmbeddedObject final : public LayoutEmbeddedContent {
 public:
  LayoutEmbeddedObject(Element*);
  ~LayoutEmbeddedObject() override;

  enum PluginAvailability {
    kPluginAvailable,
    kPluginMissing,
    kPluginBlockedByContentSecurityPolicy,
  };
  void SetPluginAvailability(PluginAvailability);
  bool ShowsUnavailablePluginIndicator() const;

  const char* GetName() const override { return "LayoutEmbeddedObject"; }

  const String& UnavailablePluginReplacementText() const {
    return unavailable_plugin_replacement_text_;
  }

 private:
  void PaintContents(const PaintInfo&, const LayoutPoint&) const final;
  void PaintReplaced(const PaintInfo&, const LayoutPoint&) const final;
  void Paint(const PaintInfo&, const LayoutPoint&) const final;
  PaintInvalidationReason InvalidatePaint(
      const PaintInvalidatorContext&) const final;

  void UpdateLayout() final;

  bool IsOfType(LayoutObjectType type) const override {
    return type == kLayoutObjectEmbeddedObject ||
           LayoutEmbeddedContent::IsOfType(type);
  }
  LayoutReplaced* EmbeddedReplacedContent() const final;

  PaintLayerType LayerTypeRequired() const final;

  ScrollResult Scroll(ScrollGranularity, const FloatSize&) final;

  CompositingReasons AdditionalCompositingReasons() const override;

  PluginAvailability plugin_availability_ = kPluginAvailable;
  String unavailable_plugin_replacement_text_;
};

DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutEmbeddedObject, IsEmbeddedObject());

}  // namespace blink

#endif  // LayoutEmbeddedObject_h