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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 "xfa/fxjse/value.h" | |
8 | |
9 #include <math.h> | |
10 | |
11 #include "xfa/fxjse/class.h" | |
12 #include "xfa/fxjse/context.h" | |
13 | |
14 void FXJSE_ThrowMessage(const CFX_ByteStringC& utf8Message) { | |
15 v8::Isolate* pIsolate = v8::Isolate::GetCurrent(); | |
16 ASSERT(pIsolate); | |
17 | |
18 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(pIsolate); | |
19 v8::Local<v8::String> hMessage = v8::String::NewFromUtf8( | |
20 pIsolate, utf8Message.c_str(), v8::String::kNormalString, | |
21 utf8Message.GetLength()); | |
22 v8::Local<v8::Value> hError = v8::Exception::Error(hMessage); | |
23 pIsolate->ThrowException(hError); | |
24 } | |
25 | |
26 CFXJSE_HostObject* CFXJSE_Value::ToHostObject(CFXJSE_Class* lpClass) const { | |
27 ASSERT(!m_hValue.IsEmpty()); | |
28 | |
29 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); | |
30 v8::Local<v8::Value> pValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue); | |
31 ASSERT(!pValue.IsEmpty()); | |
32 | |
33 if (!pValue->IsObject()) | |
34 return nullptr; | |
35 | |
36 return FXJSE_RetrieveObjectBinding(pValue.As<v8::Object>(), lpClass); | |
37 } | |
38 | |
39 void CFXJSE_Value::SetObject(CFXJSE_HostObject* lpObject, | |
40 CFXJSE_Class* pClass) { | |
41 if (!pClass) { | |
42 ASSERT(!lpObject); | |
43 SetJSObject(); | |
44 return; | |
45 } | |
46 SetHostObject(lpObject, pClass); | |
47 } | |
48 | |
49 void CFXJSE_Value::SetHostObject(CFXJSE_HostObject* lpObject, | |
50 CFXJSE_Class* lpClass) { | |
51 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); | |
52 ASSERT(lpClass); | |
53 v8::Local<v8::FunctionTemplate> hClass = | |
54 v8::Local<v8::FunctionTemplate>::New(m_pIsolate, lpClass->m_hTemplate); | |
55 v8::Local<v8::Object> hObject = hClass->InstanceTemplate()->NewInstance(); | |
56 FXJSE_UpdateObjectBinding(hObject, lpObject); | |
57 m_hValue.Reset(m_pIsolate, hObject); | |
58 } | |
59 | |
60 void CFXJSE_Value::SetArray(uint32_t uValueCount, CFXJSE_Value** rgValues) { | |
61 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); | |
62 v8::Local<v8::Array> hArrayObject = v8::Array::New(m_pIsolate, uValueCount); | |
63 if (rgValues) { | |
64 for (uint32_t i = 0; i < uValueCount; i++) { | |
65 if (rgValues[i]) { | |
66 hArrayObject->Set(i, v8::Local<v8::Value>::New( | |
67 m_pIsolate, rgValues[i]->DirectGetValue())); | |
68 } | |
69 } | |
70 } | |
71 m_hValue.Reset(m_pIsolate, hArrayObject); | |
72 } | |
73 | |
74 void CFXJSE_Value::SetDate(double dDouble) { | |
75 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); | |
76 v8::Local<v8::Value> hDate = v8::Date::New(m_pIsolate, dDouble); | |
77 m_hValue.Reset(m_pIsolate, hDate); | |
78 } | |
79 | |
80 FX_BOOL CFXJSE_Value::SetObjectProperty(const CFX_ByteStringC& szPropName, | |
81 CFXJSE_Value* lpPropValue) { | |
82 ASSERT(lpPropValue); | |
83 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); | |
84 v8::Local<v8::Value> hObject = | |
85 v8::Local<v8::Value>::New(m_pIsolate, m_hValue); | |
86 if (!hObject->IsObject()) | |
87 return FALSE; | |
88 | |
89 v8::Local<v8::Value> hPropValue = | |
90 v8::Local<v8::Value>::New(m_pIsolate, lpPropValue->DirectGetValue()); | |
91 return (FX_BOOL)hObject.As<v8::Object>()->Set( | |
92 v8::String::NewFromUtf8(m_pIsolate, szPropName.c_str(), | |
93 v8::String::kNormalString, | |
94 szPropName.GetLength()), | |
95 hPropValue); | |
96 } | |
97 | |
98 FX_BOOL CFXJSE_Value::GetObjectProperty(const CFX_ByteStringC& szPropName, | |
99 CFXJSE_Value* lpPropValue) { | |
100 ASSERT(lpPropValue); | |
101 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); | |
102 v8::Local<v8::Value> hObject = | |
103 v8::Local<v8::Value>::New(m_pIsolate, m_hValue); | |
104 if (!hObject->IsObject()) | |
105 return FALSE; | |
106 | |
107 v8::Local<v8::Value> hPropValue = | |
108 hObject.As<v8::Object>()->Get(v8::String::NewFromUtf8( | |
109 m_pIsolate, szPropName.c_str(), v8::String::kNormalString, | |
110 szPropName.GetLength())); | |
111 lpPropValue->ForceSetValue(hPropValue); | |
112 return TRUE; | |
113 } | |
114 | |
115 FX_BOOL CFXJSE_Value::SetObjectProperty(uint32_t uPropIdx, | |
116 CFXJSE_Value* lpPropValue) { | |
117 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); | |
118 v8::Local<v8::Value> hObject = | |
119 v8::Local<v8::Value>::New(m_pIsolate, m_hValue); | |
120 if (!hObject->IsObject()) | |
121 return FALSE; | |
122 | |
123 v8::Local<v8::Value> hPropValue = | |
124 v8::Local<v8::Value>::New(m_pIsolate, lpPropValue->DirectGetValue()); | |
125 return (FX_BOOL)hObject.As<v8::Object>()->Set(uPropIdx, hPropValue); | |
126 } | |
127 | |
128 FX_BOOL CFXJSE_Value::GetObjectPropertyByIdx(uint32_t uPropIdx, | |
129 CFXJSE_Value* lpPropValue) { | |
130 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); | |
131 v8::Local<v8::Value> hObject = | |
132 v8::Local<v8::Value>::New(m_pIsolate, m_hValue); | |
133 if (!hObject->IsObject()) | |
134 return FALSE; | |
135 | |
136 v8::Local<v8::Value> hPropValue = hObject.As<v8::Object>()->Get(uPropIdx); | |
137 lpPropValue->ForceSetValue(hPropValue); | |
138 return TRUE; | |
139 } | |
140 | |
141 FX_BOOL CFXJSE_Value::DeleteObjectProperty(const CFX_ByteStringC& szPropName) { | |
142 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); | |
143 v8::Local<v8::Value> hObject = | |
144 v8::Local<v8::Value>::New(m_pIsolate, m_hValue); | |
145 if (!hObject->IsObject()) | |
146 return FALSE; | |
147 | |
148 hObject.As<v8::Object>()->Delete(v8::String::NewFromUtf8( | |
149 m_pIsolate, szPropName.c_str(), v8::String::kNormalString, | |
150 szPropName.GetLength())); | |
151 return TRUE; | |
152 } | |
153 | |
154 FX_BOOL CFXJSE_Value::HasObjectOwnProperty(const CFX_ByteStringC& szPropName, | |
155 FX_BOOL bUseTypeGetter) { | |
156 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); | |
157 v8::Local<v8::Value> hObject = | |
158 v8::Local<v8::Value>::New(m_pIsolate, m_hValue); | |
159 if (!hObject->IsObject()) | |
160 return FALSE; | |
161 | |
162 v8::Local<v8::String> hKey = v8::String::NewFromUtf8( | |
163 m_pIsolate, szPropName.c_str(), v8::String::kNormalString, | |
164 szPropName.GetLength()); | |
165 return hObject.As<v8::Object>()->HasRealNamedProperty(hKey) || | |
166 (bUseTypeGetter && | |
167 hObject.As<v8::Object>() | |
168 ->HasOwnProperty(m_pIsolate->GetCurrentContext(), hKey) | |
169 .FromMaybe(false)); | |
170 } | |
171 | |
172 FX_BOOL CFXJSE_Value::SetObjectOwnProperty(const CFX_ByteStringC& szPropName, | |
173 CFXJSE_Value* lpPropValue) { | |
174 ASSERT(lpPropValue); | |
175 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); | |
176 v8::Local<v8::Value> hObject = | |
177 v8::Local<v8::Value>::New(m_pIsolate, m_hValue); | |
178 if (!hObject->IsObject()) | |
179 return FALSE; | |
180 | |
181 v8::Local<v8::Value> pValue = | |
182 v8::Local<v8::Value>::New(m_pIsolate, lpPropValue->m_hValue); | |
183 return hObject.As<v8::Object>() | |
184 ->DefineOwnProperty( | |
185 m_pIsolate->GetCurrentContext(), | |
186 v8::String::NewFromUtf8(m_pIsolate, szPropName.c_str(), | |
187 v8::String::kNormalString, | |
188 szPropName.GetLength()), | |
189 pValue) | |
190 .FromMaybe(false); | |
191 } | |
192 | |
193 FX_BOOL CFXJSE_Value::SetFunctionBind(CFXJSE_Value* lpOldFunction, | |
194 CFXJSE_Value* lpNewThis) { | |
195 ASSERT(lpOldFunction && lpNewThis); | |
196 | |
197 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); | |
198 v8::Local<v8::Value> rgArgs[2]; | |
199 v8::Local<v8::Value> hOldFunction = | |
200 v8::Local<v8::Value>::New(m_pIsolate, lpOldFunction->DirectGetValue()); | |
201 if (hOldFunction.IsEmpty() || !hOldFunction->IsFunction()) | |
202 return FALSE; | |
203 | |
204 rgArgs[0] = hOldFunction; | |
205 v8::Local<v8::Value> hNewThis = | |
206 v8::Local<v8::Value>::New(m_pIsolate, lpNewThis->DirectGetValue()); | |
207 if (hNewThis.IsEmpty()) | |
208 return FALSE; | |
209 | |
210 rgArgs[1] = hNewThis; | |
211 v8::Local<v8::String> hBinderFuncSource = | |
212 v8::String::NewFromUtf8(m_pIsolate, | |
213 "(function (oldfunction, newthis) { return " | |
214 "oldfunction.bind(newthis); })"); | |
215 v8::Local<v8::Function> hBinderFunc = | |
216 v8::Script::Compile(hBinderFuncSource)->Run().As<v8::Function>(); | |
217 v8::Local<v8::Value> hBoundFunction = | |
218 hBinderFunc->Call(m_pIsolate->GetCurrentContext()->Global(), 2, rgArgs); | |
219 if (hBoundFunction.IsEmpty() || !hBoundFunction->IsFunction()) | |
220 return FALSE; | |
221 | |
222 m_hValue.Reset(m_pIsolate, hBoundFunction); | |
223 return TRUE; | |
224 } | |
225 | |
226 #define FXJSE_INVALID_PTR ((void*)(intptr_t)-1) | |
227 FX_BOOL CFXJSE_Value::Call(CFXJSE_Value* lpReceiver, | |
228 CFXJSE_Value* lpRetValue, | |
229 uint32_t nArgCount, | |
230 CFXJSE_Value** lpArgs) { | |
231 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate); | |
232 v8::Local<v8::Value> hFunctionValue = | |
233 v8::Local<v8::Value>::New(m_pIsolate, DirectGetValue()); | |
234 v8::Local<v8::Object> hFunctionObject = | |
235 !hFunctionValue.IsEmpty() && hFunctionValue->IsObject() | |
236 ? hFunctionValue.As<v8::Object>() | |
237 : v8::Local<v8::Object>(); | |
238 | |
239 v8::TryCatch trycatch(m_pIsolate); | |
240 if (hFunctionObject.IsEmpty() || !hFunctionObject->IsCallable()) { | |
241 if (lpRetValue) | |
242 lpRetValue->ForceSetValue(FXJSE_CreateReturnValue(m_pIsolate, trycatch)); | |
243 return FALSE; | |
244 } | |
245 | |
246 v8::Local<v8::Value> hReturnValue; | |
247 v8::Local<v8::Value>* lpLocalArgs = NULL; | |
248 if (nArgCount) { | |
249 lpLocalArgs = FX_Alloc(v8::Local<v8::Value>, nArgCount); | |
250 for (uint32_t i = 0; i < nArgCount; i++) { | |
251 new (lpLocalArgs + i) v8::Local<v8::Value>; | |
252 CFXJSE_Value* lpArg = lpArgs[i]; | |
253 if (lpArg) { | |
254 lpLocalArgs[i] = | |
255 v8::Local<v8::Value>::New(m_pIsolate, lpArg->DirectGetValue()); | |
256 } | |
257 if (lpLocalArgs[i].IsEmpty()) { | |
258 lpLocalArgs[i] = v8::Undefined(m_pIsolate); | |
259 } | |
260 } | |
261 } | |
262 | |
263 FX_BOOL bRetValue = TRUE; | |
264 if (lpReceiver == FXJSE_INVALID_PTR) { | |
265 v8::MaybeLocal<v8::Value> maybe_retvalue = | |
266 hFunctionObject->CallAsConstructor(m_pIsolate->GetCurrentContext(), | |
267 nArgCount, lpLocalArgs); | |
268 hReturnValue = maybe_retvalue.FromMaybe(v8::Local<v8::Value>()); | |
269 } else { | |
270 v8::Local<v8::Value> hReceiver; | |
271 if (lpReceiver) { | |
272 hReceiver = | |
273 v8::Local<v8::Value>::New(m_pIsolate, lpReceiver->DirectGetValue()); | |
274 } | |
275 if (hReceiver.IsEmpty() || !hReceiver->IsObject()) | |
276 hReceiver = v8::Object::New(m_pIsolate); | |
277 | |
278 v8::MaybeLocal<v8::Value> maybe_retvalue = hFunctionObject->CallAsFunction( | |
279 m_pIsolate->GetCurrentContext(), hReceiver, nArgCount, lpLocalArgs); | |
280 hReturnValue = maybe_retvalue.FromMaybe(v8::Local<v8::Value>()); | |
281 } | |
282 | |
283 if (trycatch.HasCaught()) { | |
284 hReturnValue = FXJSE_CreateReturnValue(m_pIsolate, trycatch); | |
285 bRetValue = FALSE; | |
286 } | |
287 | |
288 if (lpRetValue) | |
289 lpRetValue->ForceSetValue(hReturnValue); | |
290 | |
291 if (lpLocalArgs) { | |
292 for (uint32_t i = 0; i < nArgCount; i++) | |
293 lpLocalArgs[i].~Local(); | |
294 FX_Free(lpLocalArgs); | |
295 } | |
296 return bRetValue; | |
297 } | |
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