1 | /* |
2 | * Copyright (C) 2016 Apple Inc. All rights reserved. |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions |
6 | * are met: |
7 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #pragma once |
27 | |
28 | #include "DisplayListItems.h" |
29 | #include <wtf/FastMalloc.h> |
30 | #include <wtf/Noncopyable.h> |
31 | #include <wtf/text/WTFString.h> |
32 | |
33 | namespace WTF { |
34 | class TextStream; |
35 | } |
36 | |
37 | namespace WebCore { |
38 | |
39 | class FloatRect; |
40 | class GraphicsContext; |
41 | |
42 | namespace DisplayList { |
43 | |
44 | class Item; |
45 | |
46 | enum AsTextFlag { |
47 | None = 0, |
48 | IncludesPlatformOperations = 1 << 0, |
49 | }; |
50 | |
51 | typedef unsigned AsTextFlags; |
52 | |
53 | class DisplayList { |
54 | WTF_MAKE_NONCOPYABLE(DisplayList); WTF_MAKE_FAST_ALLOCATED; |
55 | friend class Recorder; |
56 | friend class Replayer; |
57 | public: |
58 | DisplayList() = default; |
59 | DisplayList(DisplayList&&) = default; |
60 | |
61 | DisplayList& operator=(DisplayList&&) = default; |
62 | |
63 | void dump(WTF::TextStream&) const; |
64 | |
65 | const Vector<Ref<Item>>& list() const { return m_list; } |
66 | Item& itemAt(size_t index) |
67 | { |
68 | ASSERT(index < m_list.size()); |
69 | return m_list[index].get(); |
70 | } |
71 | |
72 | void clear(); |
73 | void removeItemsFromIndex(size_t); |
74 | |
75 | size_t itemCount() const { return m_list.size(); } |
76 | size_t sizeInBytes() const; |
77 | |
78 | String asText(AsTextFlags) const; |
79 | |
80 | #if !defined(NDEBUG) || !LOG_DISABLED |
81 | WTF::CString description() const; |
82 | void dump() const; |
83 | #endif |
84 | |
85 | private: |
86 | Item& append(Ref<Item>&& item) |
87 | { |
88 | m_list.append(WTFMove(item)); |
89 | return m_list.last().get(); |
90 | } |
91 | |
92 | // Less efficient append, only used for tracking replay. |
93 | void appendItem(Item& item) |
94 | { |
95 | m_list.append(item); |
96 | } |
97 | |
98 | static bool shouldDumpForFlags(AsTextFlags, const Item&); |
99 | |
100 | Vector<Ref<Item>>& list() { return m_list; } |
101 | |
102 | Vector<Ref<Item>> m_list; |
103 | }; |
104 | |
105 | } // DisplayList |
106 | |
107 | WTF::TextStream& operator<<(WTF::TextStream&, const DisplayList::DisplayList&); |
108 | |
109 | } // WebCore |
110 | |
111 | using WebCore::DisplayList::DisplayList; |
112 | |
113 | |