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
  35 #include "Storage.h"
  36 #include "V8Binding.h"
  37 #include "V8CustomBinding.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> V8Custom::v8StorageNamedPropertyEnumerator(const v8::AccessorInfo& info)
  44 {
  45     Storage* storage = V8DOMWrapper::convertToNativeObject<Storage>(V8ClassIndex::STORAGE, 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 = V8DOMWrapper::convertToNativeObject<Storage>(V8ClassIndex::STORAGE, 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 INDEXED_PROPERTY_GETTER(Storage)
  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 NAMED_PROPERTY_GETTER(Storage)
  77 {
  78     INC_STATS("DOM.Storage.NamedPropertyGetter");
  79     return storageGetter(name, info);
  80 }
  81
  82 static v8::Handle<v8::Value> storageSetter(v8::Local<v8::String> v8Name, v8::Local<v8::Value> v8Value, const v8::AccessorInfo& info)
  83 {
  84     Storage* storage = V8DOMWrapper::convertToNativeObject<Storage>(V8ClassIndex::STORAGE, info.Holder());
  85     String name = toWebCoreString(v8Name);
  86     String value = toWebCoreString(v8Value);
  87
  88     // Silently ignore length (rather than letting the bindings raise an exception).
  89     if (name == "length")
  90         return v8Value;
  91
  92     v8::Handle<v8::Value> prototypeValue = info.Holder()->GetRealNamedPropertyInPrototypeChain(v8Name);
  93     if (!prototypeValue.IsEmpty())
  94         return notHandledByInterceptor();
  95
  96     ExceptionCode ec = 0;
  97     storage->setItem(name, value, ec);
  98     if (ec)
  99         return throwError(ec);
 100
 101     return v8Value;
 102 }
 103
 104 INDEXED_PROPERTY_SETTER(Storage)
 105 {
 106     INC_STATS("DOM.Storage.NamedPropertyGetter");
 107     v8::Local<v8::Integer> indexV8 = v8::Integer::New(index);
 108     return storageSetter(indexV8->ToString(), value, info);
 109 }
 110
 111 NAMED_PROPERTY_SETTER(Storage)
 112 {
 113     INC_STATS("DOM.Storage.NamedPropertySetter");
 114     return storageSetter(name, value, info);
 115 }
 116
 117 static v8::Handle<v8::Boolean> storageDeleter(v8::Local<v8::String> v8Name, const v8::AccessorInfo& info)
 118 {
 119     Storage* storage = V8DOMWrapper::convertToNativeObject<Storage>(V8ClassIndex::STORAGE, info.Holder());
 120     String name = toWebCoreString(v8Name);
 121
 122     if (storage->contains(name)) {
 123         storage->removeItem(name);
 124         return v8::True();
 125     }
 126
 127     return deletionNotHandledByInterceptor();
 128 }
 129
 130 INDEXED_PROPERTY_DELETER(Storage)
 131 {
 132     INC_STATS("DOM.Storage.IndexedPropertyDeleter");
 133     v8::Local<v8::Integer> indexV8 = v8::Integer::New(index);
 134     return storageDeleter(indexV8->ToString(), info);
 135 }
 136
 137 NAMED_PROPERTY_DELETER(Storage)
 138 {
 139     INC_STATS("DOM.Storage.NamedPropertyDeleter");
 140     return storageDeleter(name, info);
 141 }
 142
 143 } // namespace WebCore
 144
 145 #endif