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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 "wtf/Allocator.h" | 10 #include "wtf/Allocator.h" |
11 #include "wtf/PassOwnPtr.h" | 11 #include "wtf/PassOwnPtr.h" |
12 | 12 |
13 namespace blink { | 13 namespace blink { |
14 | 14 |
15 class PLATFORM_EXPORT BeginScrollDisplayItem final : public PairedBeginDisplayIt
em { | 15 class PLATFORM_EXPORT BeginScrollDisplayItem final : public PairedBeginDisplayIt
em { |
16 public: | 16 public: |
17 BeginScrollDisplayItem(const DisplayItemClientWrapper& client, Type type, co
nst IntSize& currentOffset) | 17 BeginScrollDisplayItem(const DisplayItemClient& client, Type type, const Int
Size& currentOffset) |
18 : PairedBeginDisplayItem(client, type, sizeof(*this)) | 18 : PairedBeginDisplayItem(client, type, sizeof(*this)) |
19 , m_currentOffset(currentOffset) | 19 , m_currentOffset(currentOffset) |
20 { | 20 { |
21 ASSERT(isScrollType(type)); | 21 ASSERT(isScrollType(type)); |
22 } | 22 } |
23 | 23 |
24 void replay(GraphicsContext&) const override; | 24 void replay(GraphicsContext&) const override; |
25 void appendToWebDisplayItemList(const IntRect&, WebDisplayItemList*) const o
verride; | 25 void appendToWebDisplayItemList(const IntRect&, WebDisplayItemList*) const o
verride; |
26 | 26 |
27 const IntSize& currentOffset() const { return m_currentOffset; } | 27 const IntSize& currentOffset() const { return m_currentOffset; } |
28 | 28 |
29 private: | 29 private: |
30 #ifndef NDEBUG | 30 #ifndef NDEBUG |
31 void dumpPropertiesAsDebugString(WTF::StringBuilder&) const final; | 31 void dumpPropertiesAsDebugString(WTF::StringBuilder&) const final; |
32 #endif | 32 #endif |
33 #if ENABLE(ASSERT) | 33 #if ENABLE(ASSERT) |
34 bool equals(const DisplayItem& other) const final | 34 bool equals(const DisplayItem& other) const final |
35 { | 35 { |
36 return DisplayItem::equals(other) | 36 return DisplayItem::equals(other) |
37 && m_currentOffset == static_cast<const BeginScrollDisplayItem&>(oth
er).m_currentOffset; | 37 && m_currentOffset == static_cast<const BeginScrollDisplayItem&>(oth
er).m_currentOffset; |
38 } | 38 } |
39 #endif | 39 #endif |
40 | 40 |
41 const IntSize m_currentOffset; | 41 const IntSize m_currentOffset; |
42 }; | 42 }; |
43 | 43 |
44 class PLATFORM_EXPORT EndScrollDisplayItem final : public PairedEndDisplayItem { | 44 class PLATFORM_EXPORT EndScrollDisplayItem final : public PairedEndDisplayItem { |
45 public: | 45 public: |
46 EndScrollDisplayItem(const DisplayItemClientWrapper& client, Type type) | 46 EndScrollDisplayItem(const DisplayItemClient& client, Type type) |
47 : PairedEndDisplayItem(client, type, sizeof(*this)) | 47 : PairedEndDisplayItem(client, type, sizeof(*this)) |
48 { | 48 { |
49 ASSERT(isEndScrollType(type)); | 49 ASSERT(isEndScrollType(type)); |
50 } | 50 } |
51 | 51 |
52 void replay(GraphicsContext&) const override; | 52 void replay(GraphicsContext&) const override; |
53 void appendToWebDisplayItemList(const IntRect&, WebDisplayItemList*) const o
verride; | 53 void appendToWebDisplayItemList(const IntRect&, WebDisplayItemList*) const o
verride; |
54 | 54 |
55 private: | 55 private: |
56 #if ENABLE(ASSERT) | 56 #if ENABLE(ASSERT) |
57 bool isEndAndPairedWith(DisplayItem::Type otherType) const final { return Di
splayItem::isScrollType(otherType); } | 57 bool isEndAndPairedWith(DisplayItem::Type otherType) const final { return Di
splayItem::isScrollType(otherType); } |
58 #endif | 58 #endif |
59 }; | 59 }; |
60 | 60 |
61 } // namespace blink | 61 } // namespace blink |
62 | 62 |
63 #endif // ScrollDisplayItem_h | 63 #endif // ScrollDisplayItem_h |
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