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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "fxjs/cjs_color.h"
#include <algorithm>
#include <vector>
#include "core/fxge/cfx_color.h"
#include "fxjs/cjs_event_context.h"
#include "fxjs/cjs_eventhandler.h"
#include "fxjs/cjs_object.h"
#include "fxjs/cjs_runtime.h"
#include "fxjs/js_define.h"
const JSPropertySpec CJS_Color::PropertySpecs[] = {
{"black", get_black_static, set_black_static},
{"blue", get_blue_static, set_blue_static},
{"cyan", get_cyan_static, set_cyan_static},
{"dkGray", get_dark_gray_static, set_dark_gray_static},
{"gray", get_gray_static, set_gray_static},
{"green", get_green_static, set_green_static},
{"ltGray", get_light_gray_static, set_light_gray_static},
{"magenta", get_magenta_static, set_magenta_static},
{"red", get_red_static, set_red_static},
{"transparent", get_transparent_static, set_transparent_static},
{"white", get_white_static, set_white_static},
{"yellow", get_yellow_static, set_yellow_static}};
const JSMethodSpec CJS_Color::MethodSpecs[] = {{"convert", convert_static},
{"equal", equal_static}};
int CJS_Color::ObjDefnID = -1;
const char CJS_Color::kName[] = "color";
// static
int CJS_Color::GetObjDefnID() {
return ObjDefnID;
}
// static
void CJS_Color::DefineJSObjects(CFXJS_Engine* pEngine) {
ObjDefnID = pEngine->DefineObj(CJS_Color::kName, FXJSOBJTYPE_STATIC,
JSConstructor<CJS_Color>, JSDestructor);
DefineProps(pEngine, ObjDefnID, PropertySpecs);
DefineMethods(pEngine, ObjDefnID, MethodSpecs);
}
// static
v8::Local<v8::Array> CJS_Color::ConvertPWLColorToArray(CJS_Runtime* pRuntime,
const CFX_Color& color) {
v8::Local<v8::Array> array;
switch (color.nColorType) {
case CFX_Color::kTransparent:
array = pRuntime->NewArray();
pRuntime->PutArrayElement(array, 0, pRuntime->NewString("T"));
break;
case CFX_Color::kGray:
array = pRuntime->NewArray();
pRuntime->PutArrayElement(array, 0, pRuntime->NewString("G"));
pRuntime->PutArrayElement(array, 1, pRuntime->NewNumber(color.fColor1));
break;
case CFX_Color::kRGB:
array = pRuntime->NewArray();
pRuntime->PutArrayElement(array, 0, pRuntime->NewString("RGB"));
pRuntime->PutArrayElement(array, 1, pRuntime->NewNumber(color.fColor1));
pRuntime->PutArrayElement(array, 2, pRuntime->NewNumber(color.fColor2));
pRuntime->PutArrayElement(array, 3, pRuntime->NewNumber(color.fColor3));
break;
case CFX_Color::kCMYK:
array = pRuntime->NewArray();
pRuntime->PutArrayElement(array, 0, pRuntime->NewString("CMYK"));
pRuntime->PutArrayElement(array, 1, pRuntime->NewNumber(color.fColor1));
pRuntime->PutArrayElement(array, 2, pRuntime->NewNumber(color.fColor2));
pRuntime->PutArrayElement(array, 3, pRuntime->NewNumber(color.fColor3));
pRuntime->PutArrayElement(array, 4, pRuntime->NewNumber(color.fColor4));
break;
}
return array;
}
// static
CFX_Color CJS_Color::ConvertArrayToPWLColor(CJS_Runtime* pRuntime,
v8::Local<v8::Array> array) {
int nArrayLen = pRuntime->GetArrayLength(array);
if (nArrayLen < 1)
return CFX_Color();
WideString sSpace =
pRuntime->ToWideString(pRuntime->GetArrayElement(array, 0));
if (sSpace.EqualsASCII("T"))
return CFX_Color(CFX_Color::kTransparent);
float d1 = 0;
if (nArrayLen > 1) {
d1 = static_cast<float>(
pRuntime->ToDouble(pRuntime->GetArrayElement(array, 1)));
}
if (sSpace.EqualsASCII("G"))
return CFX_Color(CFX_Color::kGray, d1);
float d2 = 0;
float d3 = 0;
if (nArrayLen > 2) {
d2 = static_cast<float>(
pRuntime->ToDouble(pRuntime->GetArrayElement(array, 2)));
}
if (nArrayLen > 3) {
d3 = static_cast<float>(
pRuntime->ToDouble(pRuntime->GetArrayElement(array, 3)));
}
if (sSpace.EqualsASCII("RGB"))
return CFX_Color(CFX_Color::kRGB, d1, d2, d3);
float d4 = 0;
if (nArrayLen > 4) {
d4 = static_cast<float>(
pRuntime->ToDouble(pRuntime->GetArrayElement(array, 4)));
}
if (sSpace.EqualsASCII("CMYK"))
return CFX_Color(CFX_Color::kCMYK, d1, d2, d3, d4);
return CFX_Color();
}
CJS_Color::CJS_Color(v8::Local<v8::Object> pObject, CJS_Runtime* pRuntime)
: CJS_Object(pObject, pRuntime),
m_crTransparent(CFX_Color::kTransparent),
m_crBlack(CFX_Color::kGray, 0),
m_crWhite(CFX_Color::kGray, 1),
m_crRed(CFX_Color::kRGB, 1, 0, 0),
m_crGreen(CFX_Color::kRGB, 0, 1, 0),
m_crBlue(CFX_Color::kRGB, 0, 0, 1),
m_crCyan(CFX_Color::kCMYK, 1, 0, 0, 0),
m_crMagenta(CFX_Color::kCMYK, 0, 1, 0, 0),
m_crYellow(CFX_Color::kCMYK, 0, 0, 1, 0),
m_crDKGray(CFX_Color::kGray, 0.25),
m_crGray(CFX_Color::kGray, 0.5),
m_crLTGray(CFX_Color::kGray, 0.75) {}
CJS_Color::~CJS_Color() = default;
CJS_Result CJS_Color::get_transparent(CJS_Runtime* pRuntime) {
return GetPropertyHelper(pRuntime, &m_crTransparent);
}
CJS_Result CJS_Color::set_transparent(CJS_Runtime* pRuntime,
v8::Local<v8::Value> vp) {
return SetPropertyHelper(pRuntime, vp, &m_crTransparent);
}
CJS_Result CJS_Color::get_black(CJS_Runtime* pRuntime) {
return GetPropertyHelper(pRuntime, &m_crBlack);
}
CJS_Result CJS_Color::set_black(CJS_Runtime* pRuntime,
v8::Local<v8::Value> vp) {
return SetPropertyHelper(pRuntime, vp, &m_crBlack);
}
CJS_Result CJS_Color::get_white(CJS_Runtime* pRuntime) {
return GetPropertyHelper(pRuntime, &m_crWhite);
}
CJS_Result CJS_Color::set_white(CJS_Runtime* pRuntime,
v8::Local<v8::Value> vp) {
return SetPropertyHelper(pRuntime, vp, &m_crWhite);
}
CJS_Result CJS_Color::get_red(CJS_Runtime* pRuntime) {
return GetPropertyHelper(pRuntime, &m_crRed);
}
CJS_Result CJS_Color::set_red(CJS_Runtime* pRuntime, v8::Local<v8::Value> vp) {
return SetPropertyHelper(pRuntime, vp, &m_crRed);
}
CJS_Result CJS_Color::get_green(CJS_Runtime* pRuntime) {
return GetPropertyHelper(pRuntime, &m_crGreen);
}
CJS_Result CJS_Color::set_green(CJS_Runtime* pRuntime,
v8::Local<v8::Value> vp) {
return SetPropertyHelper(pRuntime, vp, &m_crGreen);
}
CJS_Result CJS_Color::get_blue(CJS_Runtime* pRuntime) {
return GetPropertyHelper(pRuntime, &m_crBlue);
}
CJS_Result CJS_Color::set_blue(CJS_Runtime* pRuntime, v8::Local<v8::Value> vp) {
return SetPropertyHelper(pRuntime, vp, &m_crBlue);
}
CJS_Result CJS_Color::get_cyan(CJS_Runtime* pRuntime) {
return GetPropertyHelper(pRuntime, &m_crCyan);
}
CJS_Result CJS_Color::set_cyan(CJS_Runtime* pRuntime, v8::Local<v8::Value> vp) {
return SetPropertyHelper(pRuntime, vp, &m_crCyan);
}
CJS_Result CJS_Color::get_magenta(CJS_Runtime* pRuntime) {
return GetPropertyHelper(pRuntime, &m_crMagenta);
}
CJS_Result CJS_Color::set_magenta(CJS_Runtime* pRuntime,
v8::Local<v8::Value> vp) {
return SetPropertyHelper(pRuntime, vp, &m_crMagenta);
}
CJS_Result CJS_Color::get_yellow(CJS_Runtime* pRuntime) {
return GetPropertyHelper(pRuntime, &m_crYellow);
}
CJS_Result CJS_Color::set_yellow(CJS_Runtime* pRuntime,
v8::Local<v8::Value> vp) {
return SetPropertyHelper(pRuntime, vp, &m_crYellow);
}
CJS_Result CJS_Color::get_dark_gray(CJS_Runtime* pRuntime) {
return GetPropertyHelper(pRuntime, &m_crDKGray);
}
CJS_Result CJS_Color::set_dark_gray(CJS_Runtime* pRuntime,
v8::Local<v8::Value> vp) {
return SetPropertyHelper(pRuntime, vp, &m_crDKGray);
}
CJS_Result CJS_Color::get_gray(CJS_Runtime* pRuntime) {
return GetPropertyHelper(pRuntime, &m_crGray);
}
CJS_Result CJS_Color::set_gray(CJS_Runtime* pRuntime, v8::Local<v8::Value> vp) {
return SetPropertyHelper(pRuntime, vp, &m_crGray);
}
CJS_Result CJS_Color::get_light_gray(CJS_Runtime* pRuntime) {
return GetPropertyHelper(pRuntime, &m_crLTGray);
}
CJS_Result CJS_Color::set_light_gray(CJS_Runtime* pRuntime,
v8::Local<v8::Value> vp) {
return SetPropertyHelper(pRuntime, vp, &m_crLTGray);
}
CJS_Result CJS_Color::GetPropertyHelper(CJS_Runtime* pRuntime, CFX_Color* var) {
v8::Local<v8::Value> array = ConvertPWLColorToArray(pRuntime, *var);
if (array.IsEmpty())
return CJS_Result::Success(pRuntime->NewArray());
return CJS_Result::Success(array);
}
CJS_Result CJS_Color::SetPropertyHelper(CJS_Runtime* pRuntime,
v8::Local<v8::Value> vp,
CFX_Color* var) {
if (vp.IsEmpty())
return CJS_Result::Failure(JSMessage::kParamError);
if (!vp->IsArray())
return CJS_Result::Failure(JSMessage::kTypeError);
*var = ConvertArrayToPWLColor(pRuntime, pRuntime->ToArray(vp));
return CJS_Result::Success();
}
CJS_Result CJS_Color::convert(CJS_Runtime* pRuntime,
const std::vector<v8::Local<v8::Value>>& params) {
if (params.size() < 2)
return CJS_Result::Failure(JSMessage::kParamError);
if (params[0].IsEmpty() || !params[0]->IsArray())
return CJS_Result::Failure(JSMessage::kTypeError);
WideString sDestSpace = pRuntime->ToWideString(params[1]);
int nColorType = CFX_Color::kTransparent;
if (sDestSpace.EqualsASCII("T"))
nColorType = CFX_Color::kTransparent;
else if (sDestSpace.EqualsASCII("G"))
nColorType = CFX_Color::kGray;
else if (sDestSpace.EqualsASCII("RGB"))
nColorType = CFX_Color::kRGB;
else if (sDestSpace.EqualsASCII("CMYK"))
nColorType = CFX_Color::kCMYK;
CFX_Color color =
ConvertArrayToPWLColor(pRuntime, pRuntime->ToArray(params[0]));
v8::Local<v8::Value> array =
ConvertPWLColorToArray(pRuntime, color.ConvertColorType(nColorType));
if (array.IsEmpty())
return CJS_Result::Success(pRuntime->NewArray());
return CJS_Result::Success(array);
}
CJS_Result CJS_Color::equal(CJS_Runtime* pRuntime,
const std::vector<v8::Local<v8::Value>>& params) {
if (params.size() < 2)
return CJS_Result::Failure(JSMessage::kParamError);
if (params[0].IsEmpty() || !params[0]->IsArray() || params[1].IsEmpty() ||
!params[1]->IsArray()) {
return CJS_Result::Failure(JSMessage::kTypeError);
}
CFX_Color color1 =
ConvertArrayToPWLColor(pRuntime, pRuntime->ToArray(params[0]));
CFX_Color color2 =
ConvertArrayToPWLColor(pRuntime, pRuntime->ToArray(params[1]));
// Relies on higher values having more components.
int32_t best = std::max(color1.nColorType, color2.nColorType);
return CJS_Result::Success(pRuntime->NewBoolean(
color1.ConvertColorType(best) == color2.ConvertColorType(best)));
}