src/main/proto/search/now/ui/piet/piet_android_support.proto

// Copyright 2018 The Feed Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto2";


package search.now.ui.piet;

option optimize_for=LITE_RUNTIME;

option java_package = "com.google.search.now.ui.piet";
option java_outer_classname = "PietAndroidSupport";
option cc_enable_arenas = true;

// Define extensions and other supporting messages used by the Android
// implementation of the Piet protocol.

// This allows the Host to control the granularity of slices by returning
// only slices specified instead of generating all the slices within the
// full Card message.
// TODO: Is this still relevant?
message ShardingControl {
  // The first slice to render, if this is undefined we will render the
  // full card.
  optional int32 start_slice = 1;

  // The last slice to render.
  optional int32 end_slice = 2;

  // If we are rendering a list, this is the first index in the list.
  optional int32 list_start = 3;

  // if we are rendering a list, this is the last index in the list.
  optional int32 list_end = 4;
}