chromium/third_party/blink/renderer/platform/graphics/paint/paint_property_node.h

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PAINT_PAINT_PROPERTY_NODE_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PAINT_PAINT_PROPERTY_NODE_H_

#include <algorithm>
#include <iosfwd>

#include "base/check_op.h"
#include "base/dcheck_is_on.h"
#include "cc/trees/property_tree.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/heap/member.h"
#include "third_party/blink/renderer/platform/json/json_values.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/blink/renderer/platform/wtf/ref_counted.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"

#if DCHECK_IS_ON()
#include "third_party/blink/renderer/platform/heap/collection_support/heap_linked_hash_set.h"
#include "third_party/blink/renderer/platform/wtf/text/string_builder.h"
#endif

namespace blink {

// Used to report whether and how paint properties have changed. The order is
// important - it must go from no change to the most significant change.
enum class PaintPropertyChangeType : unsigned char { … };

PLATFORM_EXPORT const char* PaintPropertyChangeTypeToString(
    PaintPropertyChangeType);

class PLATFORM_EXPORT PaintPropertyNode
    : public GarbageCollected<PaintPropertyNode> { … };

template <typename NodeTypeOrAlias, typename NodeType>
class PaintPropertyNodeBase : public PaintPropertyNode { … };

#if DCHECK_IS_ON()

class PLATFORM_EXPORT PropertyTreePrinter { … };

#endif  // DCHECK_IS_ON()

inline std::ostream& operator<<(std::ostream& os,
                                const PaintPropertyNode& node) { … }

inline std::ostream& operator<<(std::ostream& os,
                                PaintPropertyChangeType change) { … }

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PAINT_PAINT_PROPERTY_NODE_H_