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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
(...skipping 14 matching lines...) Expand all Loading... |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #include "config.h" | 31 #include "config.h" |
32 #include "core/layout/TextRunConstructor.h" | 32 #include "core/layout/TextRunConstructor.h" |
33 | 33 |
34 #include "core/layout/LayoutText.h" | 34 #include "core/layout/LayoutText.h" |
35 #include "core/layout/style/LayoutStyle.h" | 35 #include "core/layout/style/ComputedStyle.h" |
36 #include "platform/text/BidiTextRun.h" | 36 #include "platform/text/BidiTextRun.h" |
37 | 37 |
38 namespace blink { | 38 namespace blink { |
39 | 39 |
40 template <typename CharacterType> | 40 template <typename CharacterType> |
41 static inline TextRun constructTextRunInternal(LayoutObject* context, const Font
& font, const CharacterType* characters, int length, const LayoutStyle& style, T
extDirection direction) | 41 static inline TextRun constructTextRunInternal(LayoutObject* context, const Font
& font, const CharacterType* characters, int length, const ComputedStyle& style,
TextDirection direction) |
42 { | 42 { |
43 TextRun::ExpansionBehavior expansion = TextRun::AllowTrailingExpansion | Tex
tRun::ForbidLeadingExpansion; | 43 TextRun::ExpansionBehavior expansion = TextRun::AllowTrailingExpansion | Tex
tRun::ForbidLeadingExpansion; |
44 bool directionalOverride = style.rtlOrdering() == VisualOrder; | 44 bool directionalOverride = style.rtlOrdering() == VisualOrder; |
45 TextRun run(characters, length, 0, 0, expansion, direction, directionalOverr
ide); | 45 TextRun run(characters, length, 0, 0, expansion, direction, directionalOverr
ide); |
46 return run; | 46 return run; |
47 } | 47 } |
48 | 48 |
49 template <typename CharacterType> | 49 template <typename CharacterType> |
50 static inline TextRun constructTextRunInternal(LayoutObject* context, const Font
& font, const CharacterType* characters, int length, const LayoutStyle& style, T
extDirection direction, TextRunFlags flags) | 50 static inline TextRun constructTextRunInternal(LayoutObject* context, const Font
& font, const CharacterType* characters, int length, const ComputedStyle& style,
TextDirection direction, TextRunFlags flags) |
51 { | 51 { |
52 TextDirection textDirection = direction; | 52 TextDirection textDirection = direction; |
53 bool directionalOverride = style.rtlOrdering() == VisualOrder; | 53 bool directionalOverride = style.rtlOrdering() == VisualOrder; |
54 if (flags != DefaultTextRunFlags) { | 54 if (flags != DefaultTextRunFlags) { |
55 if (flags & RespectDirection) | 55 if (flags & RespectDirection) |
56 textDirection = style.direction(); | 56 textDirection = style.direction(); |
57 if (flags & RespectDirectionOverride) | 57 if (flags & RespectDirectionOverride) |
58 directionalOverride |= isOverride(style.unicodeBidi()); | 58 directionalOverride |= isOverride(style.unicodeBidi()); |
59 } | 59 } |
60 | 60 |
61 TextRun::ExpansionBehavior expansion = TextRun::AllowTrailingExpansion | Tex
tRun::ForbidLeadingExpansion; | 61 TextRun::ExpansionBehavior expansion = TextRun::AllowTrailingExpansion | Tex
tRun::ForbidLeadingExpansion; |
62 TextRun run(characters, length, 0, 0, expansion, textDirection, directionalO
verride); | 62 TextRun run(characters, length, 0, 0, expansion, textDirection, directionalO
verride); |
63 return run; | 63 return run; |
64 } | 64 } |
65 | 65 |
66 TextRun constructTextRun(LayoutObject* context, const Font& font, const LChar* c
haracters, int length, const LayoutStyle& style, TextDirection direction) | 66 TextRun constructTextRun(LayoutObject* context, const Font& font, const LChar* c
haracters, int length, const ComputedStyle& style, TextDirection direction) |
67 { | 67 { |
68 return constructTextRunInternal(context, font, characters, length, style, di
rection); | 68 return constructTextRunInternal(context, font, characters, length, style, di
rection); |
69 } | 69 } |
70 | 70 |
71 TextRun constructTextRun(LayoutObject* context, const Font& font, const UChar* c
haracters, int length, const LayoutStyle& style, TextDirection direction) | 71 TextRun constructTextRun(LayoutObject* context, const Font& font, const UChar* c
haracters, int length, const ComputedStyle& style, TextDirection direction) |
72 { | 72 { |
73 return constructTextRunInternal(context, font, characters, length, style, di
rection); | 73 return constructTextRunInternal(context, font, characters, length, style, di
rection); |
74 } | 74 } |
75 | 75 |
76 TextRun constructTextRun(LayoutObject* context, const Font& font, const LayoutTe
xt* text, const LayoutStyle& style, TextDirection direction) | 76 TextRun constructTextRun(LayoutObject* context, const Font& font, const LayoutTe
xt* text, const ComputedStyle& style, TextDirection direction) |
77 { | 77 { |
78 if (text->hasEmptyText()) | 78 if (text->hasEmptyText()) |
79 return constructTextRunInternal(context, font, static_cast<const LChar*>
(nullptr), 0, style, direction); | 79 return constructTextRunInternal(context, font, static_cast<const LChar*>
(nullptr), 0, style, direction); |
80 if (text->is8Bit()) | 80 if (text->is8Bit()) |
81 return constructTextRunInternal(context, font, text->characters8(), text
->textLength(), style, direction); | 81 return constructTextRunInternal(context, font, text->characters8(), text
->textLength(), style, direction); |
82 return constructTextRunInternal(context, font, text->characters16(), text->t
extLength(), style, direction); | 82 return constructTextRunInternal(context, font, text->characters16(), text->t
extLength(), style, direction); |
83 } | 83 } |
84 | 84 |
85 TextRun constructTextRun(LayoutObject* context, const Font& font, const LayoutTe
xt* text, unsigned offset, unsigned length, const LayoutStyle& style, TextDirect
ion direction) | 85 TextRun constructTextRun(LayoutObject* context, const Font& font, const LayoutTe
xt* text, unsigned offset, unsigned length, const ComputedStyle& style, TextDire
ction direction) |
86 { | 86 { |
87 ASSERT(offset + length <= text->textLength()); | 87 ASSERT(offset + length <= text->textLength()); |
88 if (text->hasEmptyText()) | 88 if (text->hasEmptyText()) |
89 return constructTextRunInternal(context, font, static_cast<const LChar*>
(nullptr), 0, style, direction); | 89 return constructTextRunInternal(context, font, static_cast<const LChar*>
(nullptr), 0, style, direction); |
90 if (text->is8Bit()) | 90 if (text->is8Bit()) |
91 return constructTextRunInternal(context, font, text->characters8() + off
set, length, style, direction); | 91 return constructTextRunInternal(context, font, text->characters8() + off
set, length, style, direction); |
92 return constructTextRunInternal(context, font, text->characters16() + offset
, length, style, direction); | 92 return constructTextRunInternal(context, font, text->characters16() + offset
, length, style, direction); |
93 } | 93 } |
94 | 94 |
95 TextRun constructTextRun(LayoutObject* context, const Font& font, const String&
string, const LayoutStyle& style, TextDirection direction, TextRunFlags flags) | 95 TextRun constructTextRun(LayoutObject* context, const Font& font, const String&
string, const ComputedStyle& style, TextDirection direction, TextRunFlags flags) |
96 { | 96 { |
97 unsigned length = string.length(); | 97 unsigned length = string.length(); |
98 if (!length) | 98 if (!length) |
99 return constructTextRunInternal(context, font, static_cast<const LChar*>
(0), length, style, direction, flags); | 99 return constructTextRunInternal(context, font, static_cast<const LChar*>
(0), length, style, direction, flags); |
100 if (string.is8Bit()) | 100 if (string.is8Bit()) |
101 return constructTextRunInternal(context, font, string.characters8(), len
gth, style, direction, flags); | 101 return constructTextRunInternal(context, font, string.characters8(), len
gth, style, direction, flags); |
102 return constructTextRunInternal(context, font, string.characters16(), length
, style, direction, flags); | 102 return constructTextRunInternal(context, font, string.characters16(), length
, style, direction, flags); |
103 } | 103 } |
104 | 104 |
105 TextRun constructTextRun(LayoutObject* context, const Font& font, const String&
string, const LayoutStyle& style, TextRunFlags flags) | 105 TextRun constructTextRun(LayoutObject* context, const Font& font, const String&
string, const ComputedStyle& style, TextRunFlags flags) |
106 { | 106 { |
107 return constructTextRun(context, font, string, style, string.isEmpty() || st
ring.is8Bit() ? LTR : determineDirectionality(string), flags); | 107 return constructTextRun(context, font, string, style, string.isEmpty() || st
ring.is8Bit() ? LTR : determineDirectionality(string), flags); |
108 } | 108 } |
109 | 109 |
110 TextRun constructTextRun(LayoutObject* context, const Font& font, const LayoutTe
xt* text, unsigned offset, unsigned length, const LayoutStyle& style) | 110 TextRun constructTextRun(LayoutObject* context, const Font& font, const LayoutTe
xt* text, unsigned offset, unsigned length, const ComputedStyle& style) |
111 { | 111 { |
112 ASSERT(offset + length <= text->textLength()); | 112 ASSERT(offset + length <= text->textLength()); |
113 if (text->hasEmptyText()) | 113 if (text->hasEmptyText()) |
114 return constructTextRunInternal(context, font, static_cast<const LChar*>
(nullptr), 0, style, LTR); | 114 return constructTextRunInternal(context, font, static_cast<const LChar*>
(nullptr), 0, style, LTR); |
115 if (text->is8Bit()) | 115 if (text->is8Bit()) |
116 return constructTextRunInternal(context, font, text->characters8() + off
set, length, style, LTR); | 116 return constructTextRunInternal(context, font, text->characters8() + off
set, length, style, LTR); |
117 | 117 |
118 TextRun run = constructTextRunInternal(context, font, text->characters16() +
offset, length, style, LTR); | 118 TextRun run = constructTextRunInternal(context, font, text->characters16() +
offset, length, style, LTR); |
119 run.setDirection(directionForRun(run)); | 119 run.setDirection(directionForRun(run)); |
120 return run; | 120 return run; |
121 } | 121 } |
122 | 122 |
123 } // namespace blink | 123 } // namespace blink |
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