d0a0d927c8ddec14fc60f1a2c5b51b23c7991878
[WebKit.git] / Source / WebCore / bindings / v8 / custom / V8StorageCustom.cpp
1 /*
2 * Copyright (C) 2009 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 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
31 #include "config.h"
32
33 #if ENABLE(DOM_STORAGE)
34 #include "V8Storage.h"
35
36 #include "Storage.h"
37 #include "V8Binding.h"
38 #include "V8Proxy.h"
39
40 namespace WebCore {
41
42 // Get an array containing the names of indexed properties in a collection.
43 v8::Handle<v8::Array> V8Storage::namedPropertyEnumerator(const v8::AccessorInfo& info)
44 {
45     Storage* storage = V8Storage::toNative(info.Holder());
46     unsigned int length = storage->length();
47     v8::Handle<v8::Array> properties = v8::Array::New(length);
48     for (unsigned int i = 0; i < length; ++i) {
49         String key = storage->key(i);
50         ASSERT(!key.isNull());
51         String val = storage->getItem(key);
52         properties->Set(v8::Integer::New(i), v8String(key));
53     }
54
55     return properties;
56 }
57
58 static v8::Handle<v8::Value> storageGetter(v8::Local<v8::String> v8Name, const v8::AccessorInfo& info)
59 {
60     Storage* storage = V8Storage::toNative(info.Holder());
61     String name = toWebCoreString(v8Name);
62
63     if (storage->contains(name) && name != "length")
64         return v8String(storage->getItem(name));
65
66     return notHandledByInterceptor();
67 }
68
69 v8::Handle<v8::Value> V8Storage::indexedPropertyGetter(uint32_t index, const v8::AccessorInfo& info)
70 {
71     INC_STATS("DOM.Storage.IndexedPropertyGetter");
72     v8::Local<v8::Integer> indexV8 = v8::Integer::New(index);
73     return storageGetter(indexV8->ToString(), info);
74 }
75
76 v8::Handle<v8::Value> V8Storage::namedPropertyGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
77 {
78     INC_STATS("DOM.Storage.NamedPropertyGetter");
79     return storageGetter(name, info);
80 }
81
82 v8::Handle<v8::Integer> V8Storage::namedPropertyQuery(v8::Local<v8::String> v8Name, const v8::AccessorInfo& info)
83 {
84     INC_STATS("DOM.Storage.NamedPropertyQuery");
85
86     Storage* storage = V8Storage::toNative(info.Holder());
87     String name = toWebCoreString(v8Name);
88
89     if (storage->contains(name) && name != "length")
90         return v8::Integer::New(v8::None);
91
92     return v8::Handle<v8::Integer>();
93 }
94
95 static v8::Handle<v8::Value> storageSetter(v8::Local<v8::String> v8Name, v8::Local<v8::Value> v8Value, const v8::AccessorInfo& info)
96 {
97     Storage* storage = V8Storage::toNative(info.Holder());
98     String name = toWebCoreString(v8Name);
99     String value = toWebCoreString(v8Value);
100
101     // Silently ignore length (rather than letting the bindings raise an exception).
102     if (name == "length")
103         return v8Value;
104
105     v8::Handle<v8::Value> prototypeValue = info.Holder()->GetRealNamedPropertyInPrototypeChain(v8Name);
106     if (!prototypeValue.IsEmpty())
107         return notHandledByInterceptor();
108
109     ExceptionCode ec = 0;
110     storage->setItem(name, value, ec);
111     if (ec)
112         return throwError(ec);
113
114     return v8Value;
115 }
116
117 v8::Handle<v8::Value> V8Storage::indexedPropertySetter(uint32_t index, v8::Local<v8::Value> value, const v8::AccessorInfo& info)
118 {
119     INC_STATS("DOM.Storage.NamedPropertyGetter");
120     v8::Local<v8::Integer> indexV8 = v8::Integer::New(index);
121     return storageSetter(indexV8->ToString(), value, info);
122 }
123
124 v8::Handle<v8::Value> V8Storage::namedPropertySetter(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::AccessorInfo& info)
125 {
126     INC_STATS("DOM.Storage.NamedPropertySetter");
127     return storageSetter(name, value, info);
128 }
129
130 static v8::Handle<v8::Boolean> storageDeleter(v8::Local<v8::String> v8Name, const v8::AccessorInfo& info)
131 {
132     Storage* storage = V8Storage::toNative(info.Holder());
133     String name = toWebCoreString(v8Name);
134     
135     if (storage->contains(name)) {
136         storage->removeItem(name);
137         return v8::True();
138     }
139
140     return deletionNotHandledByInterceptor();
141 }
142
143 v8::Handle<v8::Boolean> V8Storage::indexedPropertyDeleter(uint32_t index, const v8::AccessorInfo& info)
144 {
145     INC_STATS("DOM.Storage.IndexedPropertyDeleter");
146     v8::Local<v8::Integer> indexV8 = v8::Integer::New(index);
147     return storageDeleter(indexV8->ToString(), info);
148 }
149
150 v8::Handle<v8::Boolean> V8Storage::namedPropertyDeleter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
151 {
152     INC_STATS("DOM.Storage.NamedPropertyDeleter");
153     return storageDeleter(name, info);
154 }
155
156 } // namespace WebCore
157
158 #endif