chromium/src/third_party/blink/renderer/modules/mediastream/media_error_state.h

/*
 * Copyright (C) 2015 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions
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 * 1. Redistributions of source code must retain the above copyright
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 * 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.
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 *    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
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#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASTREAM_MEDIA_ERROR_STATE_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASTREAM_MEDIA_ERROR_STATE_H_

#include "third_party/blink/renderer/bindings/modules/v8/dom_exception_or_overconstrained_error.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"

namespace blink {

class OverconstrainedError;

// A class that is able to be used like ExceptionState for carrying
// information about an error up the stack, but it is up to the higher
// level code whether it produces a DOMException or a OverconstrainedError.
class MediaErrorState {
  STACK_ALLOCATED();

 public:
  MediaErrorState();
  void ThrowTypeError(const String& message);
  void ThrowDOMException(DOMExceptionCode, const String& message);
  void ThrowConstraintError(const String& message, const String& constraint);
  void Reset();

  bool HadException();
  bool CanGenerateException();
  void RaiseException(ExceptionState&);
  String GetErrorMessage();
  DOMExceptionOrOverconstrainedError CreateError();

 private:
  enum ErrorType { kNoError, kTypeError, kDOMException, kConstraintError };
  ErrorType error_type_;
  String name_;
  DOMExceptionCode code_;
  String message_;
  String constraint_;
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASTREAM_MEDIA_ERROR_STATE_H_