code.vuplus.com Git - vuplus_webkit/blob - 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     if (!info.Holder()->GetRealNamedPropertyInPrototypeChain(v8Name).IsEmpty())
 106         return notHandledByInterceptor();
 107
 108     ExceptionCode ec = 0;
 109     storage->setItem(name, value, ec);
 110     if (ec)
 111         return throwError(ec);
 112
 113     return v8Value;
 114 }
 115
 116 v8::Handle<v8::Value> V8Storage::indexedPropertySetter(uint32_t index, v8::Local<v8::Value> value, const v8::AccessorInfo& info)
 117 {
 118     INC_STATS("DOM.Storage.NamedPropertyGetter");
 119     v8::Local<v8::Integer> indexV8 = v8::Integer::New(index);
 120     return storageSetter(indexV8->ToString(), value, info);
 121 }
 122
 123 v8::Handle<v8::Value> V8Storage::namedPropertySetter(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::AccessorInfo& info)
 124 {
 125     INC_STATS("DOM.Storage.NamedPropertySetter");
 126     return storageSetter(name, value, info);
 127 }
 128
 129 static v8::Handle<v8::Boolean> storageDeleter(v8::Local<v8::String> v8Name, const v8::AccessorInfo& info)
 130 {
 131     Storage* storage = V8Storage::toNative(info.Holder());
 132     String name = toWebCoreString(v8Name);
 133
 134     if (storage->contains(name)) {
 135         storage->removeItem(name);
 136         return v8::True();
 137     }
 138
 139     return deletionNotHandledByInterceptor();
 140 }
 141
 142 v8::Handle<v8::Boolean> V8Storage::indexedPropertyDeleter(uint32_t index, const v8::AccessorInfo& info)
 143 {
 144     INC_STATS("DOM.Storage.IndexedPropertyDeleter");
 145     v8::Local<v8::Integer> indexV8 = v8::Integer::New(index);
 146     return storageDeleter(indexV8->ToString(), info);
 147 }
 148
 149 v8::Handle<v8::Boolean> V8Storage::namedPropertyDeleter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
 150 {
 151     INC_STATS("DOM.Storage.NamedPropertyDeleter");
 152     return storageDeleter(name, info);
 153 }
 154
 155 } // namespace WebCore
 156
 157 #endif