/*
 * Copyright (C) 2010 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,
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_FORM_SUBMISSION_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_FORM_SUBMISSION_H_

#include "base/macros.h"
#include "third_party/blink/public/web/web_triggering_event_info.h"
#include "third_party/blink/renderer/core/loader/frame_load_request.h"
#include "third_party/blink/renderer/core/loader/navigation_policy.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/weborigin/kurl.h"
#include "third_party/blink/renderer/platform/weborigin/referrer.h"
#include "third_party/blink/renderer/platform/wtf/allocator.h"

namespace blink {

class Document;
class EncodedFormData;
class Event;
class HTMLFormControlElement;
class HTMLFormElement;

class FormSubmission : public GarbageCollectedFinalized<FormSubmission> {
 public:
  enum SubmitMethod { kGetMethod, kPostMethod, kDialogMethod };

  class Attributes {
    DISALLOW_NEW();

   public:
    Attributes()
        : method_(kGetMethod),
          is_multi_part_form_(false),
          encoding_type_("application/x-www-form-urlencoded") {}

    SubmitMethod Method() const { return method_; }
    static SubmitMethod ParseMethodType(const String&);
    void UpdateMethodType(const String&);
    static String MethodString(SubmitMethod);

    const String& Action() const { return action_; }
    void ParseAction(const String&);

    const AtomicString& Target() const { return target_; }
    void SetTarget(const AtomicString& target) { target_ = target; }

    const AtomicString& EncodingType() const { return encoding_type_; }
    static AtomicString ParseEncodingType(const String&);
    void UpdateEncodingType(const String&);
    bool IsMultiPartForm() const { return is_multi_part_form_; }

    const String& AcceptCharset() const { return accept_charset_; }
    void SetAcceptCharset(const String& value) { accept_charset_ = value; }

    void CopyFrom(const Attributes&);

   private:
    SubmitMethod method_;
    bool is_multi_part_form_;

    String action_;
    AtomicString target_;
    AtomicString encoding_type_;
    String accept_charset_;

    DISALLOW_COPY_AND_ASSIGN(Attributes);
  };

  static FormSubmission* Create(HTMLFormElement*,
                                const Attributes&,
                                Event*,
                                HTMLFormControlElement* submit_button);

  FormSubmission(SubmitMethod,
                 const KURL& action,
                 const AtomicString& target,
                 const AtomicString& content_type,
                 HTMLFormElement*,
                 scoped_refptr<EncodedFormData>,
                 const String& boundary,
                 Event*);
  // FormSubmission for DialogMethod
  explicit FormSubmission(const String& result);

  void Trace(blink::Visitor*);

  FrameLoadRequest CreateFrameLoadRequest(Document* origin_document);

  KURL RequestURL() const;

  SubmitMethod Method() const { return method_; }
  const KURL& Action() const { return action_; }
  const AtomicString& Target() const { return target_; }
  void ClearTarget() { target_ = g_null_atom; }
  HTMLFormElement* Form() const { return form_.Get(); }
  EncodedFormData* Data() const { return form_data_.get(); }
  NavigationPolicy GetNavigationPolicy() const { return navigation_policy_; }

  const String& Result() const { return result_; }

 private:
  // FIXME: Hold an instance of Attributes instead of individual members.
  SubmitMethod method_;
  KURL action_;
  AtomicString target_;
  AtomicString content_type_;
  Member<HTMLFormElement> form_;
  scoped_refptr<EncodedFormData> form_data_;
  String boundary_;
  NavigationPolicy navigation_policy_;
  WebTriggeringEventInfo triggering_event_info_;
  String result_;
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_FORM_SUBMISSION_H_