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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 NGInlineItemsBuilder_h | 5 #ifndef NGInlineItemsBuilder_h |
6 #define NGInlineItemsBuilder_h | 6 #define NGInlineItemsBuilder_h |
7 | 7 |
8 #include "core/CoreExport.h" | 8 #include "core/CoreExport.h" |
| 9 #include "core/layout/ng/inline/empty_offset_mapping_builder.h" |
9 #include "core/layout/ng/inline/ng_inline_node.h" | 10 #include "core/layout/ng/inline/ng_inline_node.h" |
10 #include "platform/wtf/Allocator.h" | 11 #include "platform/wtf/Allocator.h" |
11 #include "platform/wtf/Vector.h" | 12 #include "platform/wtf/Vector.h" |
12 #include "platform/wtf/text/StringBuilder.h" | 13 #include "platform/wtf/text/StringBuilder.h" |
13 #include "platform/wtf/text/WTFString.h" | 14 #include "platform/wtf/text/WTFString.h" |
14 | 15 |
15 namespace blink { | 16 namespace blink { |
16 | 17 |
17 class ComputedStyle; | 18 class ComputedStyle; |
18 class LayoutObject; | 19 class LayoutObject; |
19 class NGInlineItem; | 20 class NGInlineItem; |
20 | 21 |
21 // NGInlineItemsBuilder builds a string and a list of NGInlineItem from inlines. | 22 // NGInlineItemsBuilder builds a string and a list of NGInlineItem from inlines. |
22 // | 23 // |
23 // When appending, spaces are collapsed according to CSS Text, The white space | 24 // When appending, spaces are collapsed according to CSS Text, The white space |
24 // processing rules | 25 // processing rules |
25 // https://drafts.csswg.org/css-text-3/#white-space-rules | 26 // https://drafts.csswg.org/css-text-3/#white-space-rules |
26 // | 27 // |
27 // By calling EnterInline/ExitInline, it inserts bidirectional control | 28 // By calling EnterInline/ExitInline, it inserts bidirectional control |
28 // characters as defined in: | 29 // characters as defined in: |
29 // https://drafts.csswg.org/css-writing-modes-3/#bidi-control-codes-injection-ta
ble | 30 // https://drafts.csswg.org/css-writing-modes-3/#bidi-control-codes-injection-ta
ble |
30 class CORE_EXPORT NGInlineItemsBuilder { | 31 // TODO(xiaochengh): Utilize the passed-in OffsetMappingBuilder to construct |
| 32 // the whitespace-collapsed offset mapping. |
| 33 template <typename OffsetMappingBuilder> |
| 34 class CORE_TEMPLATE_CLASS_EXPORT NGInlineItemsBuilderTemplate { |
31 STACK_ALLOCATED(); | 35 STACK_ALLOCATED(); |
32 | 36 |
33 public: | 37 public: |
34 explicit NGInlineItemsBuilder(Vector<NGInlineItem>* items) : items_(items) {} | 38 explicit NGInlineItemsBuilderTemplate(Vector<NGInlineItem>* items) |
35 ~NGInlineItemsBuilder(); | 39 : items_(items) {} |
| 40 ~NGInlineItemsBuilderTemplate(); |
36 | 41 |
37 String ToString(); | 42 String ToString(); |
38 | 43 |
39 void SetIsSVGText(bool value) { is_svgtext_ = value; } | 44 void SetIsSVGText(bool value) { is_svgtext_ = value; } |
40 | 45 |
41 // Returns whether the items contain any Bidi controls. | 46 // Returns whether the items contain any Bidi controls. |
42 bool HasBidiControls() const { return has_bidi_controls_; } | 47 bool HasBidiControls() const { return has_bidi_controls_; } |
43 | 48 |
44 // Append a string. | 49 // Append a string. |
45 // When appending, spaces are collapsed according to CSS Text, The white space | 50 // When appending, spaces are collapsed according to CSS Text, The white space |
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115 void RemoveTrailingCollapsibleSpaceIfExists(); | 120 void RemoveTrailingCollapsibleSpaceIfExists(); |
116 void RemoveTrailingCollapsibleSpace(unsigned); | 121 void RemoveTrailingCollapsibleSpace(unsigned); |
117 void RemoveTrailingCollapsibleNewlineIfNeeded(const String&, | 122 void RemoveTrailingCollapsibleNewlineIfNeeded(const String&, |
118 unsigned, | 123 unsigned, |
119 const ComputedStyle*); | 124 const ComputedStyle*); |
120 | 125 |
121 void Enter(LayoutObject*, UChar); | 126 void Enter(LayoutObject*, UChar); |
122 void Exit(LayoutObject*); | 127 void Exit(LayoutObject*); |
123 }; | 128 }; |
124 | 129 |
| 130 extern template class CORE_EXTERN_TEMPLATE_EXPORT |
| 131 NGInlineItemsBuilderTemplate<EmptyOffsetMappingBuilder>; |
| 132 |
| 133 using NGInlineItemsBuilder = |
| 134 NGInlineItemsBuilderTemplate<EmptyOffsetMappingBuilder>; |
| 135 |
125 } // namespace blink | 136 } // namespace blink |
126 | 137 |
127 #endif // NGInlineItemsBuilder_h | 138 #endif // NGInlineItemsBuilder_h |
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