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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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