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/*
* Copyright (C) 2011 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"
#if ENABLE(MUTATION_OBSERVERS)
#include "JSWebKitMutationObserver.h"
#include "ExceptionCode.h"
#include "JSDictionary.h"
#include "JSMutationCallback.h"
#include "JSNode.h"
#include "Node.h"
#include "WebKitMutationObserver.h"
#include <runtime/Error.h>
#include <wtf/HashSet.h>
#include <wtf/text/AtomicString.h>
using namespace JSC;
namespace WebCore {
EncodedJSValue JSC_HOST_CALL JSWebKitMutationObserverConstructor::constructJSWebKitMutationObserver(ExecState* exec)
{
if (exec->argumentCount() < 1)
return throwVMError(exec, createTypeError(exec, "Not enough arguments"));
JSObject* object = exec->argument(0).getObject();
if (!object) {
setDOMException(exec, TYPE_MISMATCH_ERR);
return JSValue::encode(jsUndefined());
}
JSWebKitMutationObserverConstructor* jsConstructor = static_cast<JSWebKitMutationObserverConstructor*>(exec->callee());
RefPtr<MutationCallback> callback = JSMutationCallback::create(object, jsConstructor->globalObject());
return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(), WebKitMutationObserver::create(callback.release()))));
}
struct BooleanOption {
const char* name;
MutationObserverOptions value;
};
static const BooleanOption booleanOptions[] = {
{ "childList", WebKitMutationObserver::ChildList },
{ "attributes", WebKitMutationObserver::Attributes },
{ "characterData", WebKitMutationObserver::CharacterData },
{ "subtree", WebKitMutationObserver::Subtree },
{ "attributeOldValue", WebKitMutationObserver::AttributeOldValue },
{ "characterDataOldValue", WebKitMutationObserver::CharacterDataOldValue }
};
static const size_t numBooleanOptions = sizeof(booleanOptions) / sizeof(BooleanOption);
JSValue JSWebKitMutationObserver::observe(ExecState* exec)
{
if (exec->argumentCount() < 2)
return throwError(exec, createTypeError(exec, "Not enough arguments"));
Node* target = toNode(exec->argument(0));
if (exec->hadException())
return jsUndefined();
JSObject* optionsObject = exec->argument(1).getObject();
if (!optionsObject) {
setDOMException(exec, TYPE_MISMATCH_ERR);
return jsUndefined();
}
JSDictionary dictionary(exec, optionsObject);
MutationObserverOptions options = 0;
for (unsigned i = 0; i < numBooleanOptions; ++i) {
bool option = false;
if (!dictionary.tryGetProperty(booleanOptions[i].name, option))
return jsUndefined();
if (option)
options |= booleanOptions[i].value;
}
HashSet<AtomicString> attributeFilter;
if (!dictionary.tryGetProperty("attributeFilter", attributeFilter))
return jsUndefined();
if (!attributeFilter.isEmpty())
options |= WebKitMutationObserver::AttributeFilter;
ExceptionCode ec = 0;
impl()->observe(target, options, attributeFilter, ec);
if (ec)
setDOMException(exec, ec);
return jsUndefined();
}
} // namespace WebCore
#endif // ENABLE(MUTATION_OBSERVERS)
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