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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 SubtreeDisplayItem_h | 5 #ifndef SubtreeDisplayItem_h |
6 #define SubtreeDisplayItem_h | 6 #define SubtreeDisplayItem_h |
7 | 7 |
8 #include "platform/geometry/FloatRect.h" | 8 #include "platform/geometry/FloatRect.h" |
9 #include "platform/graphics/paint/DisplayItem.h" | 9 #include "platform/graphics/paint/DisplayItem.h" |
10 #include "wtf/Assertions.h" | 10 #include "wtf/Assertions.h" |
11 | 11 |
12 namespace blink { | 12 namespace blink { |
13 | 13 |
14 class BeginSubtreeDisplayItem final : public PairedBeginDisplayItem { | 14 class BeginSubtreeDisplayItem final : public PairedBeginDisplayItem { |
15 public: | 15 public: |
16 BeginSubtreeDisplayItem(const DisplayItemClientWrapper& client, Type type) | 16 BeginSubtreeDisplayItem(const DisplayItemClientWrapper& client) |
17 : PairedBeginDisplayItem(client, type, sizeof(*this)) | 17 : PairedBeginDisplayItem(client, BeginSubtree, sizeof(*this)) |
18 { | 18 { } |
19 ASSERT(isBeginSubtreeType(type)); | |
20 } | |
21 }; | 19 }; |
22 | 20 |
23 class EndSubtreeDisplayItem final : public PairedEndDisplayItem { | 21 class EndSubtreeDisplayItem final : public PairedEndDisplayItem { |
24 public: | 22 public: |
25 EndSubtreeDisplayItem(const DisplayItemClientWrapper& client, Type type) | 23 EndSubtreeDisplayItem(const DisplayItemClientWrapper& client) |
26 : PairedEndDisplayItem(client, type, sizeof(*this)) | 24 : PairedEndDisplayItem(client, EndSubtree, sizeof(*this)) |
27 { | 25 { } |
28 ASSERT(isEndSubtreeType(type)); | |
29 } | |
30 | 26 |
31 #if ENABLE(ASSERT) | 27 #if ENABLE(ASSERT) |
32 bool isEndAndPairedWith(DisplayItem::Type otherType) const final { return Di
splayItem::isBeginSubtreeType(otherType); } | 28 bool isEndAndPairedWith(DisplayItem::Type otherType) const final { return ot
herType == BeginSubtree; } |
33 #endif | 29 #endif |
34 }; | 30 }; |
35 | 31 |
36 } // namespace blink | 32 } // namespace blink |
37 | 33 |
38 #endif // SubtreeDisplayItem_h | 34 #endif // SubtreeDisplayItem_h |
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