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1 // Copyright (c) 2008, Google Inc. | |
2 // All rights reserved. | |
3 // | |
4 // Redistribution and use in source and binary forms, with or without | |
5 // modification, are permitted provided that the following conditions are | |
6 // met: | |
7 // | |
8 // * Redistributions of source code must retain the above copyright | |
9 // notice, this list of conditions and the following disclaimer. | |
10 // * Redistributions in binary form must reproduce the above | |
11 // copyright notice, this list of conditions and the following disclaimer | |
12 // in the documentation and/or other materials provided with the | |
13 // distribution. | |
14 // * Neither the name of Google Inc. nor the names of its | |
15 // contributors may be used to endorse or promote products derived from | |
16 // this software without specific prior written permission. | |
17 // | |
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 | |
30 #include "config.h" | |
31 | |
32 #include "V8NPUtils.h" | |
33 | |
34 #include "DOMWindow.h" | |
35 #include "Frame.h" | |
36 #include "PlatformString.h" | |
37 #undef LOG | |
38 | |
39 #include "npruntime_priv.h" | |
40 #include "NPV8Object.h" | |
41 #include "V8NPObject.h" | |
42 #include "v8_proxy.h" | |
43 | |
44 void convertV8ObjectToNPVariant(v8::Local<v8::Value> object, NPObject *owner, NP
Variant* result) | |
45 { | |
46 VOID_TO_NPVARIANT(*result); | |
47 | |
48 // It is really the caller's responsibility to deal with the empty handle | |
49 // case because there could be different actions to take in different | |
50 // contexts. | |
51 ASSERT(!object.IsEmpty()); | |
52 | |
53 if (object.IsEmpty()) | |
54 return; | |
55 | |
56 if (object->IsInt32()) | |
57 INT32_TO_NPVARIANT(object->NumberValue(), *result); | |
58 else if (object->IsNumber()) | |
59 DOUBLE_TO_NPVARIANT(object->NumberValue(), *result); | |
60 else if (object->IsBoolean()) | |
61 BOOLEAN_TO_NPVARIANT(object->BooleanValue(), *result); | |
62 else if (object->IsNull()) | |
63 NULL_TO_NPVARIANT(*result); | |
64 else if (object->IsUndefined()) | |
65 VOID_TO_NPVARIANT(*result); | |
66 else if (object->IsString()) { | |
67 v8::String::Utf8Value utf8(object); | |
68 char* utf8_chars = strdup(*utf8); | |
69 STRINGN_TO_NPVARIANT(utf8_chars, utf8.length(), *result); | |
70 } else if (object->IsObject()) { | |
71 WebCore::DOMWindow* window = WebCore::V8Proxy::retrieveWindow(); | |
72 NPObject* npobject = npCreateV8ScriptObject(0, v8::Handle<v8::Object>::C
ast(object), window); | |
73 if (npobject) | |
74 _NPN_RegisterObject(npobject, owner); | |
75 OBJECT_TO_NPVARIANT(npobject, *result); | |
76 } | |
77 } | |
78 | |
79 | |
80 v8::Handle<v8::Value> convertNPVariantToV8Object(const NPVariant* variant, NPObj
ect* npobject) | |
81 { | |
82 NPVariantType type = variant->type; | |
83 | |
84 if (type == NPVariantType_Int32) | |
85 return v8::Integer::New(NPVARIANT_TO_INT32(*variant)); | |
86 if (type == NPVariantType_Double) | |
87 return v8::Number::New(NPVARIANT_TO_DOUBLE(*variant)); | |
88 if (type == NPVariantType_Bool) | |
89 return NPVARIANT_TO_BOOLEAN(*variant) ? v8::True() : v8::False(); | |
90 if (type == NPVariantType_Null) | |
91 return v8::Null(); | |
92 if (type == NPVariantType_Void) | |
93 return v8::Undefined(); | |
94 if (type == NPVariantType_String) { | |
95 NPString src = NPVARIANT_TO_STRING(*variant); | |
96 return v8::String::New(src.UTF8Characters, src.UTF8Length); | |
97 } | |
98 if (type == NPVariantType_Object) { | |
99 NPObject* obj = NPVARIANT_TO_OBJECT(*variant); | |
100 if (obj->_class == npScriptObjectClass) | |
101 return reinterpret_cast<V8NPObject*>(obj)->v8Object; | |
102 return createV8ObjectForNPObject(obj, npobject); | |
103 } | |
104 return v8::Undefined(); | |
105 } | |
106 | |
107 // Helper function to create an NPN String Identifier from a v8 string. | |
108 NPIdentifier getStringIdentifier(v8::Handle<v8::String> str) | |
109 { | |
110 const int kStackBufSize = 100; | |
111 | |
112 int bufLen = str->Length() + 1; | |
113 if (bufLen <= kStackBufSize) { | |
114 // Use local stack buffer to avoid heap allocations for small strings. | |
115 // Here we should only use the stack space for stack_buf when it's used, | |
116 // not when we use the heap. | |
117 char stackBuf[kStackBufSize]; | |
118 str->WriteAscii(stackBuf); | |
119 return NPN_GetStringIdentifier(stackBuf); | |
120 } | |
121 | |
122 v8::String::AsciiValue ascii(str); | |
123 return NPN_GetStringIdentifier(*ascii); | |
124 } | |
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