1 // Copyright 2014 PDFium Authors. All rights reserved.
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 "fxjs/cjs_color.h"
8
9 #include <vector>
10
11 #include "fxjs/JS_Define.h"
12 #include "fxjs/cjs_event_context.h"
13 #include "fxjs/cjs_eventhandler.h"
14 #include "fxjs/cjs_object.h"
15 #include "fxjs/cjs_runtime.h"
16
17 const JSPropertySpec CJS_Color::PropertySpecs[] = {
18 {"black", get_black_static, set_black_static},
19 {"blue", get_blue_static, set_blue_static},
20 {"cyan", get_cyan_static, set_cyan_static},
21 {"dkGray", get_dark_gray_static, set_dark_gray_static},
22 {"gray", get_gray_static, set_gray_static},
23 {"green", get_green_static, set_green_static},
24 {"ltGray", get_light_gray_static, set_light_gray_static},
25 {"magenta", get_magenta_static, set_magenta_static},
26 {"red", get_red_static, set_red_static},
27 {"transparent", get_transparent_static, set_transparent_static},
28 {"white", get_white_static, set_white_static},
29 {"yellow", get_yellow_static, set_yellow_static}};
30
31 const JSMethodSpec CJS_Color::MethodSpecs[] = {{"convert", convert_static},
32 {"equal", equal_static}};
33
34 int CJS_Color::ObjDefnID = -1;
35
36 // static
DefineJSObjects(CFXJS_Engine * pEngine)37 void CJS_Color::DefineJSObjects(CFXJS_Engine* pEngine) {
38 ObjDefnID = pEngine->DefineObj("color", FXJSOBJTYPE_STATIC,
39 JSConstructor<CJS_Color, color>,
40 JSDestructor<CJS_Color>);
41 DefineProps(pEngine, ObjDefnID, PropertySpecs, FX_ArraySize(PropertySpecs));
42 DefineMethods(pEngine, ObjDefnID, MethodSpecs, FX_ArraySize(MethodSpecs));
43 }
44
45 // static
ConvertPWLColorToArray(CJS_Runtime * pRuntime,const CFX_Color & color)46 v8::Local<v8::Array> color::ConvertPWLColorToArray(CJS_Runtime* pRuntime,
47 const CFX_Color& color) {
48 v8::Local<v8::Array> array;
49 switch (color.nColorType) {
50 case CFX_Color::kTransparent:
51 array = pRuntime->NewArray();
52 pRuntime->PutArrayElement(array, 0, pRuntime->NewString(L"T"));
53 break;
54 case CFX_Color::kGray:
55 array = pRuntime->NewArray();
56 pRuntime->PutArrayElement(array, 0, pRuntime->NewString(L"G"));
57 pRuntime->PutArrayElement(array, 1, pRuntime->NewNumber(color.fColor1));
58 break;
59 case CFX_Color::kRGB:
60 array = pRuntime->NewArray();
61 pRuntime->PutArrayElement(array, 0, pRuntime->NewString(L"RGB"));
62 pRuntime->PutArrayElement(array, 1, pRuntime->NewNumber(color.fColor1));
63 pRuntime->PutArrayElement(array, 2, pRuntime->NewNumber(color.fColor2));
64 pRuntime->PutArrayElement(array, 3, pRuntime->NewNumber(color.fColor3));
65 break;
66 case CFX_Color::kCMYK:
67 array = pRuntime->NewArray();
68 pRuntime->PutArrayElement(array, 0, pRuntime->NewString(L"CMYK"));
69 pRuntime->PutArrayElement(array, 1, pRuntime->NewNumber(color.fColor1));
70 pRuntime->PutArrayElement(array, 2, pRuntime->NewNumber(color.fColor2));
71 pRuntime->PutArrayElement(array, 3, pRuntime->NewNumber(color.fColor3));
72 pRuntime->PutArrayElement(array, 4, pRuntime->NewNumber(color.fColor4));
73 break;
74 }
75 return array;
76 }
77
78 // static
ConvertArrayToPWLColor(CJS_Runtime * pRuntime,v8::Local<v8::Array> array)79 CFX_Color color::ConvertArrayToPWLColor(CJS_Runtime* pRuntime,
80 v8::Local<v8::Array> array) {
81 int nArrayLen = pRuntime->GetArrayLength(array);
82 if (nArrayLen < 1)
83 return CFX_Color();
84
85 WideString sSpace =
86 pRuntime->ToWideString(pRuntime->GetArrayElement(array, 0));
87 if (sSpace == L"T")
88 return CFX_Color(CFX_Color::kTransparent);
89
90 float d1 = 0;
91 if (nArrayLen > 1) {
92 d1 = static_cast<float>(
93 pRuntime->ToDouble(pRuntime->GetArrayElement(array, 1)));
94 }
95
96 if (sSpace == L"G")
97 return CFX_Color(CFX_Color::kGray, d1);
98
99 float d2 = 0;
100 float d3 = 0;
101 if (nArrayLen > 2) {
102 d2 = static_cast<float>(
103 pRuntime->ToDouble(pRuntime->GetArrayElement(array, 2)));
104 }
105 if (nArrayLen > 3) {
106 d3 = static_cast<float>(
107 pRuntime->ToDouble(pRuntime->GetArrayElement(array, 3)));
108 }
109
110 if (sSpace == L"RGB")
111 return CFX_Color(CFX_Color::kRGB, d1, d2, d3);
112
113 float d4 = 0;
114 if (nArrayLen > 4) {
115 d4 = static_cast<float>(
116 pRuntime->ToDouble(pRuntime->GetArrayElement(array, 4)));
117 }
118 if (sSpace == L"CMYK")
119 return CFX_Color(CFX_Color::kCMYK, d1, d2, d3, d4);
120
121 return CFX_Color();
122 }
123
color(CJS_Object * pJSObject)124 color::color(CJS_Object* pJSObject) : CJS_EmbedObj(pJSObject) {
125 m_crTransparent = CFX_Color(CFX_Color::kTransparent);
126 m_crBlack = CFX_Color(CFX_Color::kGray, 0);
127 m_crWhite = CFX_Color(CFX_Color::kGray, 1);
128 m_crRed = CFX_Color(CFX_Color::kRGB, 1, 0, 0);
129 m_crGreen = CFX_Color(CFX_Color::kRGB, 0, 1, 0);
130 m_crBlue = CFX_Color(CFX_Color::kRGB, 0, 0, 1);
131 m_crCyan = CFX_Color(CFX_Color::kCMYK, 1, 0, 0, 0);
132 m_crMagenta = CFX_Color(CFX_Color::kCMYK, 0, 1, 0, 0);
133 m_crYellow = CFX_Color(CFX_Color::kCMYK, 0, 0, 1, 0);
134 m_crDKGray = CFX_Color(CFX_Color::kGray, 0.25);
135 m_crGray = CFX_Color(CFX_Color::kGray, 0.5);
136 m_crLTGray = CFX_Color(CFX_Color::kGray, 0.75);
137 }
138
~color()139 color::~color() {}
140
get_transparent(CJS_Runtime * pRuntime)141 CJS_Return color::get_transparent(CJS_Runtime* pRuntime) {
142 return GetPropertyHelper(pRuntime, &m_crTransparent);
143 }
144
set_transparent(CJS_Runtime * pRuntime,v8::Local<v8::Value> vp)145 CJS_Return color::set_transparent(CJS_Runtime* pRuntime,
146 v8::Local<v8::Value> vp) {
147 return SetPropertyHelper(pRuntime, vp, &m_crTransparent);
148 }
149
get_black(CJS_Runtime * pRuntime)150 CJS_Return color::get_black(CJS_Runtime* pRuntime) {
151 return GetPropertyHelper(pRuntime, &m_crBlack);
152 }
153
set_black(CJS_Runtime * pRuntime,v8::Local<v8::Value> vp)154 CJS_Return color::set_black(CJS_Runtime* pRuntime, v8::Local<v8::Value> vp) {
155 return SetPropertyHelper(pRuntime, vp, &m_crBlack);
156 }
157
get_white(CJS_Runtime * pRuntime)158 CJS_Return color::get_white(CJS_Runtime* pRuntime) {
159 return GetPropertyHelper(pRuntime, &m_crWhite);
160 }
161
set_white(CJS_Runtime * pRuntime,v8::Local<v8::Value> vp)162 CJS_Return color::set_white(CJS_Runtime* pRuntime, v8::Local<v8::Value> vp) {
163 return SetPropertyHelper(pRuntime, vp, &m_crWhite);
164 }
165
get_red(CJS_Runtime * pRuntime)166 CJS_Return color::get_red(CJS_Runtime* pRuntime) {
167 return GetPropertyHelper(pRuntime, &m_crRed);
168 }
169
set_red(CJS_Runtime * pRuntime,v8::Local<v8::Value> vp)170 CJS_Return color::set_red(CJS_Runtime* pRuntime, v8::Local<v8::Value> vp) {
171 return SetPropertyHelper(pRuntime, vp, &m_crRed);
172 }
173
get_green(CJS_Runtime * pRuntime)174 CJS_Return color::get_green(CJS_Runtime* pRuntime) {
175 return GetPropertyHelper(pRuntime, &m_crGreen);
176 }
177
set_green(CJS_Runtime * pRuntime,v8::Local<v8::Value> vp)178 CJS_Return color::set_green(CJS_Runtime* pRuntime, v8::Local<v8::Value> vp) {
179 return SetPropertyHelper(pRuntime, vp, &m_crGreen);
180 }
181
get_blue(CJS_Runtime * pRuntime)182 CJS_Return color::get_blue(CJS_Runtime* pRuntime) {
183 return GetPropertyHelper(pRuntime, &m_crBlue);
184 }
185
set_blue(CJS_Runtime * pRuntime,v8::Local<v8::Value> vp)186 CJS_Return color::set_blue(CJS_Runtime* pRuntime, v8::Local<v8::Value> vp) {
187 return SetPropertyHelper(pRuntime, vp, &m_crBlue);
188 }
189
get_cyan(CJS_Runtime * pRuntime)190 CJS_Return color::get_cyan(CJS_Runtime* pRuntime) {
191 return GetPropertyHelper(pRuntime, &m_crCyan);
192 }
193
set_cyan(CJS_Runtime * pRuntime,v8::Local<v8::Value> vp)194 CJS_Return color::set_cyan(CJS_Runtime* pRuntime, v8::Local<v8::Value> vp) {
195 return SetPropertyHelper(pRuntime, vp, &m_crCyan);
196 }
197
get_magenta(CJS_Runtime * pRuntime)198 CJS_Return color::get_magenta(CJS_Runtime* pRuntime) {
199 return GetPropertyHelper(pRuntime, &m_crMagenta);
200 }
201
set_magenta(CJS_Runtime * pRuntime,v8::Local<v8::Value> vp)202 CJS_Return color::set_magenta(CJS_Runtime* pRuntime, v8::Local<v8::Value> vp) {
203 return SetPropertyHelper(pRuntime, vp, &m_crMagenta);
204 }
205
get_yellow(CJS_Runtime * pRuntime)206 CJS_Return color::get_yellow(CJS_Runtime* pRuntime) {
207 return GetPropertyHelper(pRuntime, &m_crYellow);
208 }
209
set_yellow(CJS_Runtime * pRuntime,v8::Local<v8::Value> vp)210 CJS_Return color::set_yellow(CJS_Runtime* pRuntime, v8::Local<v8::Value> vp) {
211 return SetPropertyHelper(pRuntime, vp, &m_crYellow);
212 }
213
get_dark_gray(CJS_Runtime * pRuntime)214 CJS_Return color::get_dark_gray(CJS_Runtime* pRuntime) {
215 return GetPropertyHelper(pRuntime, &m_crDKGray);
216 }
217
set_dark_gray(CJS_Runtime * pRuntime,v8::Local<v8::Value> vp)218 CJS_Return color::set_dark_gray(CJS_Runtime* pRuntime,
219 v8::Local<v8::Value> vp) {
220 return SetPropertyHelper(pRuntime, vp, &m_crDKGray);
221 }
222
get_gray(CJS_Runtime * pRuntime)223 CJS_Return color::get_gray(CJS_Runtime* pRuntime) {
224 return GetPropertyHelper(pRuntime, &m_crGray);
225 }
226
set_gray(CJS_Runtime * pRuntime,v8::Local<v8::Value> vp)227 CJS_Return color::set_gray(CJS_Runtime* pRuntime, v8::Local<v8::Value> vp) {
228 return SetPropertyHelper(pRuntime, vp, &m_crGray);
229 }
230
get_light_gray(CJS_Runtime * pRuntime)231 CJS_Return color::get_light_gray(CJS_Runtime* pRuntime) {
232 return GetPropertyHelper(pRuntime, &m_crLTGray);
233 }
234
set_light_gray(CJS_Runtime * pRuntime,v8::Local<v8::Value> vp)235 CJS_Return color::set_light_gray(CJS_Runtime* pRuntime,
236 v8::Local<v8::Value> vp) {
237 return SetPropertyHelper(pRuntime, vp, &m_crLTGray);
238 }
239
GetPropertyHelper(CJS_Runtime * pRuntime,CFX_Color * var)240 CJS_Return color::GetPropertyHelper(CJS_Runtime* pRuntime, CFX_Color* var) {
241 v8::Local<v8::Value> array = ConvertPWLColorToArray(pRuntime, *var);
242 if (array.IsEmpty())
243 return CJS_Return(pRuntime->NewArray());
244 return CJS_Return(array);
245 }
246
SetPropertyHelper(CJS_Runtime * pRuntime,v8::Local<v8::Value> vp,CFX_Color * var)247 CJS_Return color::SetPropertyHelper(CJS_Runtime* pRuntime,
248 v8::Local<v8::Value> vp,
249 CFX_Color* var) {
250 if (vp.IsEmpty() || !vp->IsArray())
251 return CJS_Return(false);
252
253 *var = ConvertArrayToPWLColor(pRuntime, pRuntime->ToArray(vp));
254 return CJS_Return(true);
255 }
256
convert(CJS_Runtime * pRuntime,const std::vector<v8::Local<v8::Value>> & params)257 CJS_Return color::convert(CJS_Runtime* pRuntime,
258 const std::vector<v8::Local<v8::Value>>& params) {
259 int iSize = params.size();
260 if (iSize < 2)
261 return CJS_Return(false);
262 if (params[0].IsEmpty() || !params[0]->IsArray())
263 return CJS_Return(false);
264
265 WideString sDestSpace = pRuntime->ToWideString(params[1]);
266 int nColorType = CFX_Color::kTransparent;
267 if (sDestSpace == L"T")
268 nColorType = CFX_Color::kTransparent;
269 else if (sDestSpace == L"G")
270 nColorType = CFX_Color::kGray;
271 else if (sDestSpace == L"RGB")
272 nColorType = CFX_Color::kRGB;
273 else if (sDestSpace == L"CMYK")
274 nColorType = CFX_Color::kCMYK;
275
276 CFX_Color color =
277 ConvertArrayToPWLColor(pRuntime, pRuntime->ToArray(params[0]));
278
279 v8::Local<v8::Value> array =
280 ConvertPWLColorToArray(pRuntime, color.ConvertColorType(nColorType));
281 if (array.IsEmpty())
282 return CJS_Return(pRuntime->NewArray());
283 return CJS_Return(array);
284 }
285
equal(CJS_Runtime * pRuntime,const std::vector<v8::Local<v8::Value>> & params)286 CJS_Return color::equal(CJS_Runtime* pRuntime,
287 const std::vector<v8::Local<v8::Value>>& params) {
288 if (params.size() < 2)
289 return CJS_Return(false);
290 if (params[0].IsEmpty() || !params[0]->IsArray() || params[1].IsEmpty() ||
291 !params[1]->IsArray()) {
292 return CJS_Return(false);
293 }
294
295 CFX_Color color1 =
296 ConvertArrayToPWLColor(pRuntime, pRuntime->ToArray(params[0]));
297 CFX_Color color2 =
298 ConvertArrayToPWLColor(pRuntime, pRuntime->ToArray(params[1]));
299
300 color1 = color1.ConvertColorType(color2.nColorType);
301 return CJS_Return(pRuntime->NewBoolean(color1 == color2));
302 }
303