1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
// 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
#ifndef FXJS_JS_DEFINE_H_
#define FXJS_JS_DEFINE_H_
#include <utility>
#include <vector>
#include "fxjs/cfxjs_engine.h"
#include "fxjs/cjs_object.h"
#include "fxjs/cjs_return.h"
#include "fxjs/js_resources.h"
#include "third_party/base/ptr_util.h"
double JS_GetDateTime();
int JS_GetYearFromTime(double dt);
int JS_GetMonthFromTime(double dt);
int JS_GetDayFromTime(double dt);
int JS_GetHourFromTime(double dt);
int JS_GetMinFromTime(double dt);
int JS_GetSecFromTime(double dt);
double JS_LocalTime(double d);
double JS_DateParse(const WideString& str);
double JS_MakeDay(int nYear, int nMonth, int nDay);
double JS_MakeTime(int nHour, int nMin, int nSec, int nMs);
double JS_MakeDate(double day, double time);
// Some JS methods have the bizarre convention that they may also be called
// with a single argument which is an object containing the actual arguments
// as its properties. The varying arguments to this method are the property
// names as wchar_t string literals corresponding to each positional argument.
// The result will always contain |nKeywords| value, with unspecified ones
// being set to type VT_unknown.
std::vector<v8::Local<v8::Value>> ExpandKeywordParams(
CJS_Runtime* pRuntime,
const std::vector<v8::Local<v8::Value>>& originals,
size_t nKeywords,
...);
// All JS classes have a name, an object defintion ID, and the ability to
// register themselves with FXJS_V8. We never make a BASE class on its own
// because it can't really do anything.
// Rich JS classes provide constants, methods, properties, and the ability
// to construct native object state.
template <class T>
static void JSConstructor(CFXJS_Engine* pEngine, v8::Local<v8::Object> obj) {
auto pObj = pdfium::MakeUnique<T>(obj, static_cast<CJS_Runtime*>(pEngine));
pObj->InitInstance();
pEngine->SetObjectPrivate(obj, std::move(pObj));
}
// CJS_Object has vitual dtor, template not required.
void JSDestructor(v8::Local<v8::Object> obj);
template <class C, CJS_Return (C::*M)(CJS_Runtime*)>
void JSPropGetter(const char* prop_name_string,
const char* class_name_string,
v8::Local<v8::String> property,
const v8::PropertyCallbackInfo<v8::Value>& info) {
CJS_Object* pJSObj = CFXJS_Engine::GetObjectPrivate(info.Holder());
if (!pJSObj)
return;
CJS_Runtime* pRuntime = pJSObj->GetRuntime();
if (!pRuntime)
return;
C* pObj = static_cast<C*>(pJSObj);
CJS_Return result = (pObj->*M)(pRuntime);
if (result.HasError()) {
pRuntime->Error(JSFormatErrorString(class_name_string, prop_name_string,
result.Error()));
return;
}
if (result.HasReturn())
info.GetReturnValue().Set(result.Return());
}
template <class C, CJS_Return (C::*M)(CJS_Runtime*, v8::Local<v8::Value>)>
void JSPropSetter(const char* prop_name_string,
const char* class_name_string,
v8::Local<v8::String> property,
v8::Local<v8::Value> value,
const v8::PropertyCallbackInfo<void>& info) {
CJS_Object* pJSObj = CFXJS_Engine::GetObjectPrivate(info.Holder());
if (!pJSObj)
return;
CJS_Runtime* pRuntime = pJSObj->GetRuntime();
if (!pRuntime)
return;
C* pObj = static_cast<C*>(pJSObj);
CJS_Return result = (pObj->*M)(pRuntime, value);
if (result.HasError()) {
pRuntime->Error(JSFormatErrorString(class_name_string, prop_name_string,
result.Error()));
}
}
template <class C,
CJS_Return (C::*M)(CJS_Runtime*,
const std::vector<v8::Local<v8::Value>>&)>
void JSMethod(const char* method_name_string,
const char* class_name_string,
const v8::FunctionCallbackInfo<v8::Value>& info) {
CJS_Object* pJSObj = CFXJS_Engine::GetObjectPrivate(info.Holder());
if (!pJSObj)
return;
CJS_Runtime* pRuntime = pJSObj->GetRuntime();
if (!pRuntime)
return;
std::vector<v8::Local<v8::Value>> parameters;
for (unsigned int i = 0; i < (unsigned int)info.Length(); i++)
parameters.push_back(info[i]);
C* pObj = static_cast<C*>(pJSObj);
CJS_Return result = (pObj->*M)(pRuntime, parameters);
if (result.HasError()) {
pRuntime->Error(JSFormatErrorString(class_name_string, method_name_string,
result.Error()));
return;
}
if (result.HasReturn())
info.GetReturnValue().Set(result.Return());
}
#define JS_STATIC_PROP(err_name, prop_name, class_name) \
static void get_##prop_name##_static( \
v8::Local<v8::String> property, \
const v8::PropertyCallbackInfo<v8::Value>& info) { \
JSPropGetter<class_name, &class_name::get_##prop_name>( \
#err_name, class_name::kName, property, info); \
} \
static void set_##prop_name##_static( \
v8::Local<v8::String> property, v8::Local<v8::Value> value, \
const v8::PropertyCallbackInfo<void>& info) { \
JSPropSetter<class_name, &class_name::set_##prop_name>( \
#err_name, class_name::kName, property, value, info); \
}
#define JS_STATIC_METHOD(method_name, class_name) \
static void method_name##_static( \
const v8::FunctionCallbackInfo<v8::Value>& info) { \
JSMethod<class_name, &class_name::method_name>(#method_name, \
class_name::kName, info); \
}
#endif // FXJS_JS_DEFINE_H_
|
