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/*
* Copyright (C) 2008, 2009 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "V8XMLHttpRequestUtilities.h"
#include <v8.h>
#include "V8CustomBinding.h"
#include "V8Proxy.h"
#include <wtf/Assertions.h>
namespace WebCore {
// Use an array to hold dependents. It works like a ref-counted scheme.
// A value can be added more than once to the xmlHttpRequest object.
void createHiddenXHRDependency(v8::Local<v8::Object> xmlHttpRequest, v8::Local<v8::Value> value)
{
ASSERT(V8Proxy::GetDOMWrapperType(xmlHttpRequest) == V8ClassIndex::XMLHTTPREQUEST || V8Proxy::GetDOMWrapperType(xmlHttpRequest) == V8ClassIndex::XMLHTTPREQUESTUPLOAD);
v8::Local<v8::Value> cache = xmlHttpRequest->GetInternalField(V8Custom::kXMLHttpRequestCacheIndex);
if (cache->IsNull() || cache->IsUndefined()) {
cache = v8::Array::New();
xmlHttpRequest->SetInternalField(V8Custom::kXMLHttpRequestCacheIndex, cache);
}
v8::Local<v8::Array> cacheArray = v8::Local<v8::Array>::Cast(cache);
cacheArray->Set(v8::Integer::New(cacheArray->Length()), value);
}
void removeHiddenXHRDependency(v8::Local<v8::Object> xmlHttpRequest, v8::Local<v8::Value> value)
{
ASSERT(V8Proxy::GetDOMWrapperType(xmlHttpRequest) == V8ClassIndex::XMLHTTPREQUEST || V8Proxy::GetDOMWrapperType(xmlHttpRequest) == V8ClassIndex::XMLHTTPREQUESTUPLOAD);
v8::Local<v8::Value> cache = xmlHttpRequest->GetInternalField(V8Custom::kXMLHttpRequestCacheIndex);
ASSERT(cache->IsArray());
v8::Local<v8::Array> cacheArray = v8::Local<v8::Array>::Cast(cache);
for (int i = cacheArray->Length() - 1; i >= 0; --i) {
v8::Local<v8::Value> cached = cacheArray->Get(v8::Integer::New(i));
if (cached->StrictEquals(value)) {
cacheArray->Delete(i);
return;
}
}
// We should only get here if we try to remove an event listener that was never added.
ASSERT_NOT_REACHED();
}
} // namespace WebCore
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