1 /*
2 * Copyright (C) 2010 Google Inc. 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
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "OptionsObject.h"
28
29 #include "DOMStringList.h"
30 #include "V8Binding.h"
31 #include <limits>
32
33 #if ENABLE(INDEXED_DATABASE)
34 #include "IDBKeyRange.h"
35 #include "V8IDBKeyRange.h"
36 #endif
37
38 namespace WebCore {
39
OptionsObject()40 OptionsObject::OptionsObject()
41 {
42 }
43
OptionsObject(const v8::Local<v8::Value> & options)44 OptionsObject::OptionsObject(const v8::Local<v8::Value>& options)
45 : m_options(options)
46 {
47 }
48
~OptionsObject()49 OptionsObject::~OptionsObject()
50 {
51 }
52
operator =(const OptionsObject & optionsObject)53 OptionsObject& OptionsObject::operator=(const OptionsObject& optionsObject)
54 {
55 m_options = optionsObject.m_options;
56 return *this;
57 }
58
isUndefinedOrNull() const59 bool OptionsObject::isUndefinedOrNull() const
60 {
61 if (m_options.IsEmpty())
62 return true;
63 return WebCore::isUndefinedOrNull(m_options);
64 }
65
getKeyBool(const String & key,bool & value) const66 bool OptionsObject::getKeyBool(const String& key, bool& value) const
67 {
68 v8::Local<v8::Value> v8Value;
69 if (!getKey(key, v8Value))
70 return false;
71
72 v8::Local<v8::Boolean> v8Bool = v8Value->ToBoolean();
73 if (v8Bool.IsEmpty())
74 return false;
75 value = v8Bool->Value();
76 return true;
77 }
78
getKeyInt32(const String & key,int32_t & value) const79 bool OptionsObject::getKeyInt32(const String& key, int32_t& value) const
80 {
81 v8::Local<v8::Value> v8Value;
82 if (!getKey(key, v8Value))
83 return false;
84
85 v8::Local<v8::Int32> v8Int32 = v8Value->ToInt32();
86 if (v8Int32.IsEmpty())
87 return false;
88 value = v8Int32->Value();
89 return true;
90 }
91
getKeyString(const String & key,String & value) const92 bool OptionsObject::getKeyString(const String& key, String& value) const
93 {
94 v8::Local<v8::Value> v8Value;
95 if (!getKey(key, v8Value))
96 return false;
97
98 // FIXME: It is possible for this to throw in which case we'd be getting back
99 // an empty string and returning true when we should be returning false.
100 // See fast/dom/Geolocation/script-tests/argument-types.js for a similar
101 // example.
102 value = v8ValueToWebCoreString(v8Value);
103 return true;
104 }
105
getKeyDOMStringList(const String & key) const106 PassRefPtr<DOMStringList> OptionsObject::getKeyDOMStringList(const String& key) const
107 {
108 v8::Local<v8::Value> v8Value;
109 if (!getKey(key, v8Value))
110 return 0;
111
112 if (!v8Value->IsArray())
113 return 0;
114
115 RefPtr<DOMStringList> ret = DOMStringList::create();
116 v8::Local<v8::Array> v8Array = v8::Local<v8::Array>::Cast(v8Value);
117 for (size_t i = 0; i < v8Array->Length(); ++i) {
118 v8::Local<v8::Value> indexedValue = v8Array->Get(v8::Integer::New(i));
119 ret->append(v8ValueToWebCoreString(indexedValue));
120 }
121 return ret.release();
122 }
123
124 #if ENABLE(INDEXED_DATABASE)
125
getKeyKeyRange(const String & key) const126 PassRefPtr<IDBKeyRange> OptionsObject::getKeyKeyRange(const String& key) const
127 {
128 v8::Local<v8::Value> v8Value;
129 if (!getKey(key, v8Value))
130 return 0;
131
132 if (!V8IDBKeyRange::HasInstance(v8Value))
133 return 0;
134
135 return V8IDBKeyRange::toNative(v8::Handle<v8::Object>::Cast(v8Value));
136 }
137
138 #endif
139
getKey(const String & key,v8::Local<v8::Value> & value) const140 bool OptionsObject::getKey(const String& key, v8::Local<v8::Value>& value) const
141 {
142 if (isUndefinedOrNull())
143 return false;
144 v8::Local<v8::Object> options = m_options->ToObject();
145 ASSERT(!options.IsEmpty());
146
147 v8::Handle<v8::String> v8Key = v8String(key);
148 if (!options->Has(v8Key))
149 return false;
150 value = options->Get(v8Key);
151 if (value.IsEmpty())
152 return false;
153 return !value->IsUndefined(); // FIXME: Is the undefined check necessary?
154 }
155
156 } // namespace WebCore
157