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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_DOMParser_h_
#define mozilla_dom_DOMParser_h_

#include "nsCOMPtr.h"
#include "nsIDocument.h"
#include "nsIDOMParser.h"
#include "nsWeakReference.h"
#include "nsWrapperCache.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/dom/DOMParserBinding.h"
#include "mozilla/dom/TypedArray.h"

class nsIDocument;

namespace mozilla {
namespace dom {

class DOMParser final : public nsIDOMParser,
                        public nsSupportsWeakReference,
                        public nsWrapperCache {
  typedef mozilla::dom::GlobalObject GlobalObject;

  virtual ~DOMParser();

 public:
  DOMParser();

  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(DOMParser,
                                                         nsIDOMParser)

  // nsIDOMParser
  NS_DECL_NSIDOMPARSER

  // WebIDL API
  static already_AddRefed<DOMParser> Constructor(const GlobalObject& aOwner,
                                                 mozilla::ErrorResult& rv);

  static already_AddRefed<DOMParser> Constructor(const GlobalObject& aOwner,
                                                 nsIPrincipal* aPrincipal,
                                                 nsIURI* aDocumentURI,
                                                 nsIURI* aBaseURI,
                                                 mozilla::ErrorResult& rv);

  already_AddRefed<nsIDocument> ParseFromString(
      const nsAString& aStr, mozilla::dom::SupportedType aType,
      mozilla::ErrorResult& rv);

  already_AddRefed<nsIDocument> ParseFromBuffer(
      const mozilla::dom::Sequence<uint8_t>& aBuf, uint32_t aBufLen,
      mozilla::dom::SupportedType aType, mozilla::ErrorResult& rv);

  already_AddRefed<nsIDocument> ParseFromBuffer(
      const mozilla::dom::Uint8Array& aBuf, uint32_t aBufLen,
      mozilla::dom::SupportedType aType, mozilla::ErrorResult& rv);

  already_AddRefed<nsIDocument> ParseFromStream(
      nsIInputStream* aStream, const nsAString& aCharset,
      int32_t aContentLength, mozilla::dom::SupportedType aType,
      mozilla::ErrorResult& rv);

  void Init(nsIPrincipal* aPrincipal, nsIURI* aDocumentURI, nsIURI* aBaseURI,
            mozilla::ErrorResult& rv);

  nsISupports* GetParentObject() const { return mOwner; }

  virtual JSObject* WrapObject(JSContext* aCx,
                               JS::Handle<JSObject*> aGivenProto) override {
    return mozilla::dom::DOMParserBinding::Wrap(aCx, this, aGivenProto);
  }

 private:
  explicit DOMParser(nsISupports* aOwner)
      : mOwner(aOwner),
        mAttemptedInit(false),
        mOriginalPrincipalWasSystem(false) {
    MOZ_ASSERT(aOwner);
  }

  nsresult InitInternal(nsISupports* aOwner, nsIPrincipal* prin,
                        nsIURI* documentURI, nsIURI* baseURI);

  nsresult SetUpDocument(DocumentFlavor aFlavor, nsIDOMDocument** aResult);

  // Helper for ParseFromString
  nsresult ParseFromString(const nsAString& str, const char* contentType,
                           nsIDOMDocument** aResult);

  class AttemptedInitMarker {
   public:
    explicit AttemptedInitMarker(bool* aAttemptedInit)
        : mAttemptedInit(aAttemptedInit) {}

    ~AttemptedInitMarker() { *mAttemptedInit = true; }

   private:
    bool* mAttemptedInit;
  };

  nsCOMPtr<nsISupports> mOwner;
  nsCOMPtr<nsIPrincipal> mPrincipal;
  nsCOMPtr<nsIURI> mDocumentURI;
  nsCOMPtr<nsIURI> mBaseURI;
  nsWeakPtr mScriptHandlingObject;

  bool mAttemptedInit;
  bool mOriginalPrincipalWasSystem;
};

}  // namespace dom
}  // namespace mozilla

#endif