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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
* Copyright (C) 2012 Apple 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:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS 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 APPLE OR ITS 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.
*/
#ifndef Dictionary_h
#define Dictionary_h
#include "JSDictionary.h"
#include "JSEventListener.h"
#include <bindings/ScriptValue.h>
#include <wtf/HashMap.h>
#include <wtf/text/CString.h>
#include <wtf/text/WTFString.h>
namespace JSC {
class JSValue;
}
namespace WebCore {
class EventListener;
class Dictionary {
public:
Dictionary();
Dictionary(JSC::ExecState*, JSC::JSValue);
// Returns true if a value was found for the provided property.
template <typename Result>
bool get(const char* propertyName, Result&) const;
template <typename Result>
bool get(const String& propertyName, Result&) const;
template <typename Result>
Optional<Result> get(const char* propertyName) const;
template <typename T>
RefPtr<EventListener> getEventListener(const char* propertyName, T* target) const;
template <typename T>
RefPtr<EventListener> getEventListener(const String& propertyName, T* target) const;
bool isObject() const { return m_dictionary.isValid(); }
bool isUndefinedOrNull() const { return !m_dictionary.isValid(); }
bool getOwnPropertiesAsStringHashMap(HashMap<String, String>&) const;
bool getOwnPropertyNames(Vector<String>&) const;
bool getWithUndefinedOrNullCheck(const char* propertyName, String& value) const;
JSC::ExecState* execState() const { return m_dictionary.execState(); }
private:
template <typename T>
JSC::JSObject* asJSObject(T*) const;
JSDictionary m_dictionary;
};
template <typename Result>
bool Dictionary::get(const char* propertyName, Result& result) const
{
if (!m_dictionary.isValid())
return false;
return m_dictionary.get(propertyName, result);
}
template <typename Result>
bool Dictionary::get(const String& propertyName, Result& result) const
{
return get(propertyName.utf8().data(), result);
}
template<typename Result>
Optional<Result> Dictionary::get(const char* propertyName) const
{
Result result;
if (!get(propertyName, result))
return Nullopt;
return result;
}
template <typename T>
RefPtr<EventListener> Dictionary::getEventListener(const char* propertyName, T* target) const
{
if (!m_dictionary.isValid())
return nullptr;
Deprecated::ScriptValue eventListener;
if (!m_dictionary.tryGetProperty(propertyName, eventListener))
return nullptr;
if (eventListener.hasNoValue())
return nullptr;
if (!eventListener.isObject())
return nullptr;
return JSEventListener::create(asObject(eventListener.jsValue()), asJSObject(target), true, currentWorld(m_dictionary.execState()));
}
template <typename T>
RefPtr<EventListener> Dictionary::getEventListener(const String& propertyName, T* target) const
{
return getEventListener(propertyName.utf8().data(), target);
}
}
#endif // Dictionary_h
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