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/*
* Copyright (C) 2013 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.
*/
#ifndef ExceptionState_h
#define ExceptionState_h
#include "bindings/v8/ScopedPersistent.h"
#include "bindings/v8/V8ThrowException.h"
#include "wtf/Noncopyable.h"
#include "wtf/text/WTFString.h"
#include <v8.h>
namespace WebCore {
typedef int ExceptionCode;
class ExceptionState {
WTF_MAKE_NONCOPYABLE(ExceptionState);
public:
enum Context {
ConstructionContext,
ExecutionContext,
DeletionContext,
GetterContext,
SetterContext,
UnknownContext, // FIXME: Remove this once we've flipped over to the new API.
};
explicit ExceptionState(const v8::Handle<v8::Object>& creationContext, v8::Isolate* isolate)
: m_code(0)
, m_context(UnknownContext)
, m_propertyName(0)
, m_interfaceName(0)
, m_creationContext(creationContext)
, m_isolate(isolate) { }
ExceptionState(Context context, const char* propertyName, const char* interfaceName, const v8::Handle<v8::Object>& creationContext, v8::Isolate* isolate)
: m_code(0)
, m_context(context)
, m_propertyName(propertyName)
, m_interfaceName(interfaceName)
, m_creationContext(creationContext)
, m_isolate(isolate) { }
ExceptionState(Context context, const char* interfaceName, const v8::Handle<v8::Object>& creationContext, v8::Isolate* isolate)
: m_code(0)
, m_context(context)
, m_propertyName(0)
, m_interfaceName(interfaceName)
, m_creationContext(creationContext)
, m_isolate(isolate) { ASSERT(m_context == ConstructionContext); }
virtual void throwDOMException(const ExceptionCode&, const String& message);
virtual void throwTypeError(const String& message);
virtual void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String());
// Please don't use these methods. Use ::throwDOMException and ::throwTypeError, and pass in a useful exception message.
virtual void throwUninformativeAndGenericDOMException(const ExceptionCode& ec) { throwDOMException(ec, String()); }
virtual void throwUninformativeAndGenericTypeError() { throwTypeError(String()); }
bool hadException() const { return !m_exception.isEmpty() || m_code; }
void clearException();
ExceptionCode code() const { return m_code; }
bool throwIfNeeded()
{
if (m_exception.isEmpty()) {
if (!m_code)
return false;
throwUninformativeAndGenericDOMException(m_code);
}
V8ThrowException::throwError(m_exception.newLocal(m_isolate), m_isolate);
return true;
}
Context context() const { return m_context; }
const char* propertyName() const { return m_propertyName; }
const char* interfaceName() const { return m_interfaceName; }
protected:
ExceptionCode m_code;
Context m_context;
const char* m_propertyName;
const char* m_interfaceName;
private:
void setException(v8::Handle<v8::Value>);
String addExceptionContext(const String&) const;
ScopedPersistent<v8::Value> m_exception;
v8::Handle<v8::Object> m_creationContext;
v8::Isolate* m_isolate;
};
class TrackExceptionState : public ExceptionState {
public:
TrackExceptionState(): ExceptionState(v8::Handle<v8::Object>(), 0) { }
virtual void throwDOMException(const ExceptionCode&, const String& message) OVERRIDE FINAL;
virtual void throwTypeError(const String& message = String()) OVERRIDE FINAL;
virtual void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String()) OVERRIDE FINAL;
};
} // namespace WebCore
#endif // ExceptionState_h
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