// Copyright 2016 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.

module ui.mojom;

const string kMimeTypeHTML = "text/html";
const string kMimeTypeMozillaURL = "text/x-moz-url";
const string kMimeTypePNG = "image/png";
const string kMimeTypeRTF = "text/rtf";
const string kMimeTypeText = "text/plain";
const string kMimeTypeURIList = "text/uri-list";
const string kMimeTypeURL = "text/url";

interface Clipboard {
  enum Type {
    COPY_PASTE = 0,
    SELECTION = 1
  };

  // Returns a sequence number which uniquely identifies clipboard state.
  // Clients are able to assume that the clipboard contents are unchanged as
  // long as this number has not changed. This number is monotonically
  // increasing, is increased when the clipboard state changes, and is
  // provided by Windows, Linux, and Mac.
  [Sync]
  GetSequenceNumber(Type clipboard_type) => (uint64 sequence);

  // Returns the available mime types, and the current sequence number.
  [Sync]
  GetAvailableMimeTypes(Type clipboard_types)
      => (uint64 sequence, array<string> types);

  // Returns the current data associated with the requested Mime type.
  //
  // We don't want to provide one API to return the entire clipboard state
  // because the combined size of the clipboard can be megabytes, especially
  // when image data is involved.
  [Sync]
  ReadClipboardData(Type clipboard_type, string mime_type)
      => (uint64 sequence, array<uint8>? data);

  // Writes a set of mime types to the clipboard. This will increment the
  // sequence number and return that. In the case of an empty or null map,
  // this will just clear the clipboard.
  [Sync]
  WriteClipboardData(Type clipboard_type, map<string, array<uint8>>? data)
      => (uint64 sequence);
};