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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef ScrollDisplayItem_h | 5 #ifndef ScrollDisplayItem_h |
| 6 #define ScrollDisplayItem_h | 6 #define ScrollDisplayItem_h |
| 7 | 7 |
| 8 #include "platform/geometry/IntSize.h" | 8 #include "platform/geometry/IntSize.h" |
| 9 #include "platform/graphics/paint/DisplayItem.h" | 9 #include "platform/graphics/paint/DisplayItem.h" |
| 10 #include "platform/wtf/Allocator.h" | 10 #include "platform/wtf/Allocator.h" |
| 11 | 11 |
| 12 namespace blink { | 12 namespace blink { |
| 13 | 13 |
| 14 class PLATFORM_EXPORT BeginScrollDisplayItem final | 14 class PLATFORM_EXPORT BeginScrollDisplayItem final |
| 15 : public PairedBeginDisplayItem { | 15 : public PairedBeginDisplayItem { |
| 16 public: | 16 public: |
| 17 BeginScrollDisplayItem(const DisplayItemClient& client, | 17 BeginScrollDisplayItem(const DisplayItemClient& client, |
| 18 Type type, | 18 Type type, |
| 19 const IntSize& currentOffset) | 19 const IntSize& currentOffset) |
| 20 : PairedBeginDisplayItem(client, type, sizeof(*this)), | 20 : PairedBeginDisplayItem(client, type, sizeof(*this)), |
| 21 m_currentOffset(currentOffset) { | 21 m_currentOffset(currentOffset) { |
| 22 ASSERT(isScrollType(type)); | 22 DCHECK(isScrollType(type)); |
| 23 } | 23 } |
| 24 | 24 |
| 25 void replay(GraphicsContext&) const override; | 25 void replay(GraphicsContext&) const override; |
| 26 void appendToWebDisplayItemList(const IntRect&, | 26 void appendToWebDisplayItemList(const IntRect&, |
| 27 WebDisplayItemList*) const override; | 27 WebDisplayItemList*) const override; |
| 28 | 28 |
| 29 const IntSize& currentOffset() const { return m_currentOffset; } | 29 const IntSize& currentOffset() const { return m_currentOffset; } |
| 30 | 30 |
| 31 private: | 31 private: |
| 32 #ifndef NDEBUG | 32 #ifndef NDEBUG |
| 33 void dumpPropertiesAsDebugString(WTF::StringBuilder&) const final; | 33 void dumpPropertiesAsDebugString(WTF::StringBuilder&) const final; |
| 34 #endif | 34 #endif |
| 35 bool equals(const DisplayItem& other) const final { | 35 bool equals(const DisplayItem& other) const final { |
| 36 return DisplayItem::equals(other) && | 36 return DisplayItem::equals(other) && |
| 37 m_currentOffset == | 37 m_currentOffset == |
| 38 static_cast<const BeginScrollDisplayItem&>(other) | 38 static_cast<const BeginScrollDisplayItem&>(other) |
| 39 .m_currentOffset; | 39 .m_currentOffset; |
| 40 } | 40 } |
| 41 | 41 |
| 42 const IntSize m_currentOffset; | 42 const IntSize m_currentOffset; |
| 43 }; | 43 }; |
| 44 | 44 |
| 45 class PLATFORM_EXPORT EndScrollDisplayItem final : public PairedEndDisplayItem { | 45 class PLATFORM_EXPORT EndScrollDisplayItem final : public PairedEndDisplayItem { |
| 46 public: | 46 public: |
| 47 EndScrollDisplayItem(const DisplayItemClient& client, Type type) | 47 EndScrollDisplayItem(const DisplayItemClient& client, Type type) |
| 48 : PairedEndDisplayItem(client, type, sizeof(*this)) { | 48 : PairedEndDisplayItem(client, type, sizeof(*this)) { |
| 49 ASSERT(isEndScrollType(type)); | 49 DCHECK(isEndScrollType(type)); |
| 50 } | 50 } |
| 51 | 51 |
| 52 void replay(GraphicsContext&) const override; | 52 void replay(GraphicsContext&) const override; |
| 53 void appendToWebDisplayItemList(const IntRect&, | 53 void appendToWebDisplayItemList(const IntRect&, |
| 54 WebDisplayItemList*) const override; | 54 WebDisplayItemList*) const override; |
| 55 | 55 |
| 56 private: | 56 private: |
| 57 #if DCHECK_IS_ON() | 57 #if DCHECK_IS_ON() |
| 58 bool isEndAndPairedWith(DisplayItem::Type otherType) const final { | 58 bool isEndAndPairedWith(DisplayItem::Type otherType) const final { |
| 59 return DisplayItem::isScrollType(otherType); | 59 return DisplayItem::isScrollType(otherType); |
| 60 } | 60 } |
| 61 #endif | 61 #endif |
| 62 }; | 62 }; |
| 63 | 63 |
| 64 } // namespace blink | 64 } // namespace blink |
| 65 | 65 |
| 66 #endif // ScrollDisplayItem_h | 66 #endif // ScrollDisplayItem_h |
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