1 // Copyright 2017 The PDFium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #include "xfa/fxfa/parser/cxfa_color.h"
8
9 #include "core/fxcrt/fx_extension.h"
10 #include "fxjs/xfa/cjx_node.h"
11 #include "xfa/fgas/graphics/cfgas_gecolor.h"
12 #include "xfa/fxfa/parser/cxfa_document.h"
13
14 namespace {
15
16 const CXFA_Node::PropertyData kColorPropertyData[] = {
17 {XFA_Element::Extras, 1, {}},
18 };
19
20 const CXFA_Node::AttributeData kColorAttributeData[] = {
21 {XFA_Attribute::Id, XFA_AttributeType::CData, nullptr},
22 {XFA_Attribute::Use, XFA_AttributeType::CData, nullptr},
23 {XFA_Attribute::CSpace, XFA_AttributeType::CData, (void*)L"SRGB"},
24 {XFA_Attribute::Usehref, XFA_AttributeType::CData, nullptr},
25 {XFA_Attribute::Value, XFA_AttributeType::CData, nullptr},
26 };
27
28 } // namespace
29
30 // static
StringToFXARGB(WideStringView view)31 FX_ARGB CXFA_Color::StringToFXARGB(WideStringView view) {
32 static constexpr FX_ARGB kDefaultValue = 0xff000000;
33 if (view.IsEmpty())
34 return kDefaultValue;
35
36 pdfium::span<const wchar_t> str = view.span();
37 size_t cc = 0;
38 while (cc < str.size() && FXSYS_iswspace(str[cc])) {
39 cc++;
40 }
41
42 if (cc >= str.size()) {
43 return kDefaultValue;
44 }
45
46 uint8_t r = 0;
47 uint8_t g = 0;
48 uint8_t b = 0;
49 while (cc < str.size()) {
50 if (str[cc] == ',' || !FXSYS_IsDecimalDigit(str[cc]))
51 break;
52
53 r = r * 10 + str[cc] - '0';
54 cc++;
55 }
56 if (cc < str.size() && str[cc] == ',') {
57 cc++;
58 while (cc < str.size() && FXSYS_iswspace(str[cc])) {
59 cc++;
60 }
61
62 while (cc < str.size()) {
63 if (str[cc] == ',' || !FXSYS_IsDecimalDigit(str[cc]))
64 break;
65
66 g = g * 10 + str[cc] - '0';
67 cc++;
68 }
69 if (cc < str.size() && str[cc] == ',') {
70 cc++;
71 while (cc < str.size() && FXSYS_iswspace(str[cc])) {
72 cc++;
73 }
74
75 while (cc < str.size()) {
76 if (str[cc] == ',' || !FXSYS_IsDecimalDigit(str[cc]))
77 break;
78
79 b = b * 10 + str[cc] - '0';
80 cc++;
81 }
82 }
83 }
84 return ArgbEncode(0xFF, r, g, b);
85 }
86
CXFA_Color(CXFA_Document * doc,XFA_PacketType packet)87 CXFA_Color::CXFA_Color(CXFA_Document* doc, XFA_PacketType packet)
88 : CXFA_Node(doc,
89 packet,
90 {XFA_XDPPACKET::kTemplate, XFA_XDPPACKET::kForm},
91 XFA_ObjectType::Node,
92 XFA_Element::Color,
93 kColorPropertyData,
94 kColorAttributeData,
95 cppgc::MakeGarbageCollected<CJX_Node>(
96 doc->GetHeap()->GetAllocationHandle(),
97 this)) {}
98
99 CXFA_Color::~CXFA_Color() = default;
100
GetValue() const101 FX_ARGB CXFA_Color::GetValue() const {
102 std::optional<WideString> val =
103 JSObject()->TryCData(XFA_Attribute::Value, false);
104 return val.has_value() ? StringToFXARGB(val->AsStringView()) : 0xFF000000;
105 }
106
GetValueOrDefault(FX_ARGB defaultValue) const107 FX_ARGB CXFA_Color::GetValueOrDefault(FX_ARGB defaultValue) const {
108 std::optional<WideString> val =
109 JSObject()->TryCData(XFA_Attribute::Value, false);
110 return val.has_value() ? StringToFXARGB(val->AsStringView()) : defaultValue;
111 }
112
SetValue(FX_ARGB color)113 void CXFA_Color::SetValue(FX_ARGB color) {
114 JSObject()->SetCData(XFA_Attribute::Value,
115 WideString::FromASCII(
116 CFGAS_GEColor::ColorToString(color).AsStringView()));
117 }
118