content/common/presentation/presentation_struct_traits.h

// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_COMMON_PRESENTATION_PRESENTATION_STRUCT_TRAITS_H_
#define CONTENT_COMMON_PRESENTATION_PRESENTATION_STRUCT_TRAITS_H_

#include <string>
#include <vector>

#include "base/macros.h"
#include "base/optional.h"
#include "base/strings/string_util.h"
#include "content/public/common/presentation_connection_message.h"
#include "content/public/common/presentation_info.h"
#include "third_party/WebKit/public/platform/modules/presentation/presentation.mojom.h"
#include "url/mojom/url.mojom.h"

namespace mojo {

template <>
struct EnumTraits<blink::mojom::PresentationErrorType,
                  content::PresentationErrorType> {
  static blink::mojom::PresentationErrorType ToMojom(
      content::PresentationErrorType input) {
    switch (input) {
      case content::PRESENTATION_ERROR_NO_AVAILABLE_SCREENS:
        return blink::mojom::PresentationErrorType::NO_AVAILABLE_SCREENS;
      case content::PRESENTATION_ERROR_PRESENTATION_REQUEST_CANCELLED:
        return blink::mojom::PresentationErrorType::
            PRESENTATION_REQUEST_CANCELLED;
      case content::PRESENTATION_ERROR_NO_PRESENTATION_FOUND:
        return blink::mojom::PresentationErrorType::NO_PRESENTATION_FOUND;
      case content::PRESENTATION_ERROR_PREVIOUS_START_IN_PROGRESS:
        return blink::mojom::PresentationErrorType::PREVIOUS_START_IN_PROGRESS;
      case content::PRESENTATION_ERROR_UNKNOWN:
        return blink::mojom::PresentationErrorType::UNKNOWN;
    }
    NOTREACHED() << "Unknown content::PresentationErrorType "
                 << static_cast<int>(input);
    return blink::mojom::PresentationErrorType::UNKNOWN;
  }

  static bool FromMojom(blink::mojom::PresentationErrorType input,
                        content::PresentationErrorType* output) {
    switch (input) {
      case blink::mojom::PresentationErrorType::NO_AVAILABLE_SCREENS:
        *output = content::PRESENTATION_ERROR_NO_AVAILABLE_SCREENS;
        return true;
      case blink::mojom::PresentationErrorType::PRESENTATION_REQUEST_CANCELLED:
        *output = content::PRESENTATION_ERROR_PRESENTATION_REQUEST_CANCELLED;
        return true;
      case blink::mojom::PresentationErrorType::NO_PRESENTATION_FOUND:
        *output = content::PRESENTATION_ERROR_NO_PRESENTATION_FOUND;
        return true;
      case blink::mojom::PresentationErrorType::PREVIOUS_START_IN_PROGRESS:
        *output = content::PRESENTATION_ERROR_PREVIOUS_START_IN_PROGRESS;
        return true;
      case blink::mojom::PresentationErrorType::UNKNOWN:
        *output = content::PRESENTATION_ERROR_UNKNOWN;
        return true;
    }
    return false;
  }
};

template <>
struct EnumTraits<blink::mojom::PresentationConnectionState,
                  content::PresentationConnectionState> {
  static blink::mojom::PresentationConnectionState ToMojom(
      content::PresentationConnectionState input) {
    switch (input) {
      case content::PRESENTATION_CONNECTION_STATE_CONNECTING:
        return blink::mojom::PresentationConnectionState::CONNECTING;
      case content::PRESENTATION_CONNECTION_STATE_CONNECTED:
        return blink::mojom::PresentationConnectionState::CONNECTED;
      case content::PRESENTATION_CONNECTION_STATE_CLOSED:
        return blink::mojom::PresentationConnectionState::CLOSED;
      case content::PRESENTATION_CONNECTION_STATE_TERMINATED:
        return blink::mojom::PresentationConnectionState::TERMINATED;
    }
    NOTREACHED() << "Unknown content::PresentationConnectionState "
                 << static_cast<int>(input);
    return blink::mojom::PresentationConnectionState::TERMINATED;
  }

  static bool FromMojom(blink::mojom::PresentationConnectionState input,
                        content::PresentationConnectionState* output) {
    switch (input) {
      case blink::mojom::PresentationConnectionState::CONNECTING:
        *output = content::PRESENTATION_CONNECTION_STATE_CONNECTING;
        return true;
      case blink::mojom::PresentationConnectionState::CONNECTED:
        *output = content::PRESENTATION_CONNECTION_STATE_CONNECTED;
        return true;
      case blink::mojom::PresentationConnectionState::CLOSED:
        *output = content::PRESENTATION_CONNECTION_STATE_CLOSED;
        return true;
      case blink::mojom::PresentationConnectionState::TERMINATED:
        *output = content::PRESENTATION_CONNECTION_STATE_TERMINATED;
        return true;
    }
    return false;
  }
};

template <>
struct EnumTraits<blink::mojom::PresentationConnectionCloseReason,
                  content::PresentationConnectionCloseReason> {
  static blink::mojom::PresentationConnectionCloseReason ToMojom(
      content::PresentationConnectionCloseReason input) {
    switch (input) {
      case content::PRESENTATION_CONNECTION_CLOSE_REASON_CONNECTION_ERROR:
        return blink::mojom::PresentationConnectionCloseReason::
            CONNECTION_ERROR;
      case content::PRESENTATION_CONNECTION_CLOSE_REASON_CLOSED:
        return blink::mojom::PresentationConnectionCloseReason::CLOSED;
      case content::PRESENTATION_CONNECTION_CLOSE_REASON_WENT_AWAY:
        return blink::mojom::PresentationConnectionCloseReason::WENT_AWAY;
    }
    NOTREACHED() << "Unknown content::PresentationConnectionCloseReason "
                 << static_cast<int>(input);
    return blink::mojom::PresentationConnectionCloseReason::CONNECTION_ERROR;
  }

  static bool FromMojom(blink::mojom::PresentationConnectionCloseReason input,
                        content::PresentationConnectionCloseReason* output) {
    switch (input) {
      case blink::mojom::PresentationConnectionCloseReason::CONNECTION_ERROR:
        *output =
            content::PRESENTATION_CONNECTION_CLOSE_REASON_CONNECTION_ERROR;
        return true;
      case blink::mojom::PresentationConnectionCloseReason::CLOSED:
        *output = content::PRESENTATION_CONNECTION_CLOSE_REASON_CLOSED;
        return true;
      case blink::mojom::PresentationConnectionCloseReason::WENT_AWAY:
        *output = content::PRESENTATION_CONNECTION_CLOSE_REASON_WENT_AWAY;
        return true;
    }
    return false;
  }
};

template <>
struct StructTraits<blink::mojom::PresentationInfoDataView,
                    content::PresentationInfo> {
  static const GURL& url(const content::PresentationInfo& presentation_info) {
    return presentation_info.presentation_url;
  }

  static const std::string& id(
      const content::PresentationInfo& presentation_info) {
    return presentation_info.presentation_id;
  }

  static bool Read(blink::mojom::PresentationInfoDataView data,
                   content::PresentationInfo* out);
};

template <>
struct StructTraits<blink::mojom::PresentationErrorDataView,
                    content::PresentationError> {
  static content::PresentationErrorType error_type(
      const content::PresentationError& error) {
    return error.error_type;
  }

  static const std::string& message(const content::PresentationError& error) {
    return error.message;
  }

  static bool Read(blink::mojom::PresentationErrorDataView data,
                   content::PresentationError* out);
};

template <>
struct UnionTraits<blink::mojom::PresentationConnectionMessageDataView,
                   content::PresentationConnectionMessage> {
  static blink::mojom::PresentationConnectionMessageDataView::Tag GetTag(
      const content::PresentationConnectionMessage& message) {
    return message.is_binary()
               ? blink::mojom::PresentationConnectionMessageDataView::Tag::DATA
               : blink::mojom::PresentationConnectionMessageDataView::Tag::
                     MESSAGE;
  }

  static const std::string& message(
      const content::PresentationConnectionMessage& message) {
    DCHECK(!message.is_binary());
    return message.message.value();
  }

  static const std::vector<uint8_t>& data(
      const content::PresentationConnectionMessage& message) {
    DCHECK(message.is_binary());
    return message.data.value();
  }

  static bool Read(blink::mojom::PresentationConnectionMessageDataView data,
                   content::PresentationConnectionMessage* out);
};

}  // namespace mojo

#endif  // CONTENT_COMMON_PRESENTATION_PRESENTATION_STRUCT_TRAITS_H_