summaryrefslogtreecommitdiff
path: root/xfa/src/fxjse/src/class.cpp
blob: bc02e8b0ffca75271630b22c28c798f97ac5b679 (plain)
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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
// 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 "../../foxitlib.h"
#include "fxv8.h"
#include "context.h"
#include "class.h"
#include "value.h"
#include "scope_inline.h"
#include "util_inline.h"
static void FXJSE_V8ConstructorCallback_Wrapper(const v8::FunctionCallbackInfo<v8::Value>& info);
static void FXJSE_V8FunctionCallback_Wrapper(const v8::FunctionCallbackInfo<v8::Value>& info);
static void FXJSE_V8GetterCallback_Wrapper(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Value>& info);
static void FXJSE_V8SetterCallback_Wrapper(v8::Local<v8::String> property, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info);
void FXJSE_DefineFunctions(FXJSE_HCONTEXT hContext, const FXJSE_FUNCTION* lpFunctions, int nNum)
{
    CFXJSE_Context* lpContext = reinterpret_cast<CFXJSE_Context*>(hContext);
    ASSERT(lpContext);
    CFXJSE_ScopeUtil_IsolateHandleContext scope(lpContext);
    v8::Isolate *pIsolate = lpContext->GetRuntime();
    v8::Local<v8::Object>  hGlobalObject = FXJSE_GetGlobalObjectFromContext(scope.GetLocalContext());
    for(int32_t i = 0; i < nNum; i++) {
        hGlobalObject->ForceSet(v8::String::NewFromUtf8(pIsolate, lpFunctions[i].name),
                                v8::Function::New(pIsolate, FXJSE_V8FunctionCallback_Wrapper, v8::External::New(pIsolate, const_cast<FXJSE_FUNCTION*>(lpFunctions + i))),
                                static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
    }
}
FXJSE_HCLASS FXJSE_DefineClass(FXJSE_HCONTEXT hContext, const FXJSE_CLASS* lpClass)
{
    CFXJSE_Context* lpContext = reinterpret_cast<CFXJSE_Context*>(hContext);
    ASSERT(lpContext);
    return reinterpret_cast<FXJSE_HCLASS>(CFXJSE_Class::Create(lpContext, lpClass, FALSE));
}
FXJSE_HCLASS FXJSE_GetClass(FXJSE_HCONTEXT hContext, const CFX_ByteStringC& szName)
{
    return reinterpret_cast<FXJSE_HCLASS>(CFXJSE_Class::GetClassFromContext(reinterpret_cast<CFXJSE_Context*>(hContext), szName));
}
static void FXJSE_V8FunctionCallback_Wrapper(const v8::FunctionCallbackInfo<v8::Value>& info)
{
    const FXJSE_FUNCTION* lpFunctionInfo = static_cast<FXJSE_FUNCTION*>(info.Data().As<v8::External>()->Value());
    if (!lpFunctionInfo) {
        return;
    }
    CFX_ByteStringC szFunctionName(lpFunctionInfo->name);
    CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
    lpThisValue->ForceSetValue(info.This());
    CFXJSE_Value* lpRetValue = CFXJSE_Value::Create(info.GetIsolate());
    CFXJSE_ArgumentsImpl impl = {&info, lpRetValue};
    lpFunctionInfo->callbackProc(reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szFunctionName, reinterpret_cast<CFXJSE_Arguments&>(impl));
    if(!lpRetValue->DirectGetValue().IsEmpty()) {
        info.GetReturnValue().Set(lpRetValue->DirectGetValue());
    }
    delete lpRetValue;
    lpRetValue = NULL;
    delete lpThisValue;
    lpThisValue = NULL;
}
static void FXJSE_V8ClassGlobalConstructorCallback_Wrapper(const v8::FunctionCallbackInfo<v8::Value>& info)
{
    const FXJSE_CLASS* lpClassDefinition = static_cast<FXJSE_CLASS*>(info.Data().As<v8::External>()->Value());
    if (!lpClassDefinition) {
        return;
    }
    CFX_ByteStringC szFunctionName(lpClassDefinition->name);
    CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
    lpThisValue->ForceSetValue(info.This());
    CFXJSE_Value* lpRetValue = CFXJSE_Value::Create(info.GetIsolate());
    CFXJSE_ArgumentsImpl impl = {&info, lpRetValue};
    lpClassDefinition->constructor(reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szFunctionName, reinterpret_cast<CFXJSE_Arguments&>(impl));
    if(!lpRetValue->DirectGetValue().IsEmpty()) {
        info.GetReturnValue().Set(lpRetValue->DirectGetValue());
    }
    delete lpRetValue;
    lpRetValue = NULL;
    delete lpThisValue;
    lpThisValue = NULL;
}
static void FXJSE_V8GetterCallback_Wrapper(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Value>& info)
{
    const FXJSE_PROPERTY* lpPropertyInfo = static_cast<FXJSE_PROPERTY*>(info.Data().As<v8::External>()->Value());
    if (!lpPropertyInfo) {
        return;
    }
    CFX_ByteStringC szPropertyName(lpPropertyInfo->name);
    CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
    CFXJSE_Value* lpPropValue = CFXJSE_Value::Create(info.GetIsolate());
    lpThisValue->ForceSetValue(info.This());
    lpPropertyInfo->getProc(reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szPropertyName, reinterpret_cast<FXJSE_HVALUE>(lpPropValue));
    info.GetReturnValue().Set(lpPropValue->DirectGetValue());
    delete lpThisValue;
    lpThisValue = NULL;
    delete lpPropValue;
    lpPropValue = NULL;
}
static void FXJSE_V8SetterCallback_Wrapper(v8::Local<v8::String> property, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info)
{
    const FXJSE_PROPERTY* lpPropertyInfo = static_cast<FXJSE_PROPERTY*>(info.Data().As<v8::External>()->Value());
    if (!lpPropertyInfo) {
        return;
    }
    CFX_ByteStringC szPropertyName(lpPropertyInfo->name);
    CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
    CFXJSE_Value* lpPropValue = CFXJSE_Value::Create(info.GetIsolate());
    lpThisValue->ForceSetValue(info.This());
    lpPropValue->ForceSetValue(value);
    lpPropertyInfo->setProc(reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szPropertyName, reinterpret_cast<FXJSE_HVALUE>(lpPropValue));
    delete lpThisValue;
    lpThisValue = NULL;
    delete lpPropValue;
    lpPropValue = NULL;
}
static void FXJSE_V8ConstructorCallback_Wrapper(const v8::FunctionCallbackInfo<v8::Value>& info)
{
    const FXJSE_CLASS* lpClassDefinition = static_cast<FXJSE_CLASS*>(info.Data().As<v8::External>()->Value());
    if (!lpClassDefinition) {
        return;
    }
    FXSYS_assert(info.This()->InternalFieldCount());
    info.This()->SetAlignedPointerInInternalField(0, NULL);
    CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
    lpThisValue->ForceSetValue(info.This());
    if(lpClassDefinition->dynMethodCall || lpClassDefinition->dynPropGetter || lpClassDefinition->dynPropSetter || lpClassDefinition->dynPropTypeGetter) {
        CFXJSE_Class::SetUpDynPropHandler(NULL, lpThisValue, lpClassDefinition);
    }
    delete lpThisValue;
    lpThisValue = NULL;
}
FXJSE_HRUNTIME CFXJSE_Arguments::GetRuntime() const
{
    const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
    return reinterpret_cast<FXJSE_HRUNTIME>(lpArguments->m_pRetValue->GetIsolate());
}
int32_t		CFXJSE_Arguments::GetLength() const
{
    const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
    return lpArguments->m_pInfo->Length();
}
FXJSE_HVALUE	CFXJSE_Arguments::GetValue(int32_t index) const
{
    const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
    CFXJSE_Value* lpArgValue = CFXJSE_Value::Create(v8::Isolate::GetCurrent());
    ASSERT(lpArgValue);
    lpArgValue->ForceSetValue((*lpArguments->m_pInfo)[index]);
    return reinterpret_cast<FXJSE_HVALUE>(lpArgValue);
}
FX_BOOL			CFXJSE_Arguments::GetBoolean(int32_t index) const
{
    const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
    return (*lpArguments->m_pInfo)[index]->BooleanValue() ? TRUE : FALSE;
}
int32_t		CFXJSE_Arguments::GetInt32(int32_t index) const
{
    const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
    return static_cast<int32_t>((*lpArguments->m_pInfo)[index]->NumberValue());
}
FX_FLOAT		CFXJSE_Arguments::GetFloat(int32_t index) const
{
    const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
    return static_cast<FX_FLOAT>((*lpArguments->m_pInfo)[index]->NumberValue());
}
CFX_ByteString	CFXJSE_Arguments::GetUTF8String(int32_t index) const
{
    const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
    v8::Local<v8::String> hString = (*lpArguments->m_pInfo)[index]->ToString();
    v8::String::Utf8Value  szStringVal(hString);
    return CFX_ByteString(*szStringVal);
}
void*		CFXJSE_Arguments::GetObject(int32_t index, FXJSE_HCLASS hClass ) const
{
    const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
    v8::Local<v8::Value> hValue = (*lpArguments->m_pInfo)[index];
    ASSERT(!hValue.IsEmpty());
    if(!hValue->IsObject()) {
        return NULL;
    }
    CFXJSE_Class* lpClass = reinterpret_cast<CFXJSE_Class*>(hClass);
    return FXJSE_RetrieveObjectBinding(hValue.As<v8::Object>(), lpClass);
}
FXJSE_HVALUE	CFXJSE_Arguments::GetReturnValue()
{
    const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
    return reinterpret_cast<FXJSE_HVALUE>(lpArguments->m_pRetValue);
}
static void FXJSE_Context_GlobalObjToString(const v8::FunctionCallbackInfo<v8::Value>& info)
{
    const FXJSE_CLASS* lpClass = static_cast<FXJSE_CLASS*>(info.Data().As<v8::External>()->Value());
    if (!lpClass) {
        return;
    }
    if(info.This() == info.Holder() && lpClass->name) {
        CFX_ByteString szStringVal;
        szStringVal.Format("[object %s]", lpClass->name);
        info.GetReturnValue().Set(v8::String::NewFromUtf8(info.GetIsolate(), (const FX_CHAR*)szStringVal, v8::String::kNormalString, szStringVal.GetLength()));
    } else {
        info.GetReturnValue().Set(info.This()->ObjectProtoToString());
    }
}
CFXJSE_Class* CFXJSE_Class::Create(CFXJSE_Context* lpContext, const FXJSE_CLASS* lpClassDefinition, FX_BOOL bIsJSGlobal )
{
    if(!lpContext || !lpClassDefinition) {
        return NULL;
    }
    CFXJSE_Class* pClass = GetClassFromContext(lpContext, lpClassDefinition->name);
    if(pClass) {
        return pClass;
    }
    v8::Isolate* pIsolate = lpContext->m_pIsolate;
    pClass = FX_NEW CFXJSE_Class(lpContext);
    ASSERT(pClass);
    pClass->m_szClassName = lpClassDefinition->name;
    CFXJSE_ScopeUtil_IsolateHandleRootContext scope(pIsolate);
    v8::Local<v8::FunctionTemplate> hFunctionTemplate = v8::FunctionTemplate::New(pIsolate, bIsJSGlobal ? 0 : FXJSE_V8ConstructorCallback_Wrapper, v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(lpClassDefinition)));
    hFunctionTemplate->SetClassName(v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name));
    hFunctionTemplate->InstanceTemplate()->SetInternalFieldCount(1);
    v8::Local<v8::ObjectTemplate> hObjectTemplate = hFunctionTemplate->InstanceTemplate();
    if (lpClassDefinition->dynPropDeleter || lpClassDefinition->dynPropTypeGetter) {
        SetUpNamedPropHandler(pIsolate, hObjectTemplate, lpClassDefinition);
    }
    if(lpClassDefinition->propNum) {
        for(int32_t i = 0; i < lpClassDefinition->propNum; i++) {
            hObjectTemplate->SetNativeDataProperty(v8::String::NewFromUtf8(pIsolate, lpClassDefinition->properties[i].name),
                                                   lpClassDefinition->properties[i].getProc ? FXJSE_V8GetterCallback_Wrapper : NULL,
                                                   lpClassDefinition->properties[i].setProc ? FXJSE_V8SetterCallback_Wrapper : NULL,
                                                   v8::External::New(pIsolate,  const_cast<FXJSE_PROPERTY*>(lpClassDefinition->properties + i)),
                                                   static_cast<v8::PropertyAttribute>(v8::DontDelete));
        }
    }
    if(lpClassDefinition->methNum) {
        for(int32_t i = 0; i < lpClassDefinition->methNum; i++) {
            hObjectTemplate->Set(v8::String::NewFromUtf8(pIsolate, lpClassDefinition->methods[i].name),
                                 v8::FunctionTemplate::New(pIsolate, FXJSE_V8FunctionCallback_Wrapper,
                                         v8::External::New(pIsolate, const_cast<FXJSE_FUNCTION*>(lpClassDefinition->methods + i))),
                                 static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
        }
    }
    if(lpClassDefinition->constructor) {
        if(bIsJSGlobal) {
            hObjectTemplate->Set(v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name),
                                 v8::FunctionTemplate::New(pIsolate, FXJSE_V8ClassGlobalConstructorCallback_Wrapper,
                                         v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(lpClassDefinition))),
                                 static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
        } else {
            v8::Local<v8::Context> hLocalContext = v8::Local<v8::Context>::New(pIsolate, lpContext->m_hContext);
            FXJSE_GetGlobalObjectFromContext(hLocalContext)->Set(v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name),
                    v8::Function::New(pIsolate, FXJSE_V8ClassGlobalConstructorCallback_Wrapper,
                                      v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(lpClassDefinition))));
        }
    }
    if(bIsJSGlobal) {
        hObjectTemplate->Set(v8::String::NewFromUtf8(pIsolate, "toString"), v8::FunctionTemplate::New(pIsolate, FXJSE_Context_GlobalObjToString, v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(lpClassDefinition))));
    }
    pClass->m_hTemplate.Reset(lpContext->m_pIsolate, hFunctionTemplate);
    lpContext->m_rgClasses.Add(pClass);
    return pClass;
}
CFXJSE_Class* CFXJSE_Class::GetClassFromContext(CFXJSE_Context* pContext, const CFX_ByteStringC& szName)
{
    for(int count = pContext->m_rgClasses.GetSize(), i = 0; i < count; i++) {
        CFXJSE_Class* pClass = pContext->m_rgClasses[i];
        if(pClass->m_szClassName == szName) {
            return pClass;
        }
    }
    return NULL;
}