components/optimization_guide/proto/contextual_cueing_metadata.proto

// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

edition = "2023";

package optimization_guide.proto;

option features.enum_type = CLOSED;
option features.utf8_validation = NONE;
option optimize_for = LITE_RUNTIME;
option java_package = "org.chromium.components.optimization_guide.proto";
option java_outer_classname = "ContextualCueingMetadataProto";

enum ContextualCueingClientSignal {
  CONTEXTUAL_CUEING_CLIENT_SIGNAL_UNSPECIFIED = 0;

  // The number of pages in the PDF, if the page being viewed is a PDF.
  CONTEXTUAL_CUEING_CLIENT_SIGNAL_PDF_PAGE_COUNT = 1;

  // The number of words in the page being viewed if not a PDF.
  CONTEXTUAL_CUEING_CLIENT_SIGNAL_CONTENT_LENGTH_WORD_COUNT = 2;
}

enum ContextualCueingOperator {
  CONTEXTUAL_CUEING_OPERATOR_UNSPECIFIED = 0;
  CONTEXTUAL_CUEING_OPERATOR_GREATER_THAN_OR_EQUAL_TO = 1;
  CONTEXTUAL_CUEING_OPERATOR_LESS_THAN_OR_EQUAL_TO = 2;
}

message ContextualCueingConditions {
  // The signal to check.
  ContextualCueingClientSignal signal = 1;

  // The operator to use when comparing the signal to the threshold.
  ContextualCueingOperator cueing_operator = 2;

  oneof threshold {
    // The int64 threshold value to compare the signal to.
    int64 int64_threshold = 3;
  }
}

message GlicContextualCueingMetadata {
  // Cueing configurations supported for this page.
  //
  // Take the first one that matches something the current client state and
  // capabilities.
  //
  // If there is no match, then the client should not show any cues.
  repeated GlicCueingConfiguration cueing_configurations = 1;
}

message GlicCueingConfiguration {
  // The cue label to show in the tab strip.
  //
  // This will always be non-empty.
  string cue_label = 1;

  // The conditions that must be met for this cueing configuration to be
  // eligible. This should be treated as an AND operation.
  //
  // If this list is empty, this cueing configuration is always eligible.
  repeated ContextualCueingConditions conditions = 2;
}

message GlicZeroStateSuggestionsMetadata {
  // The contextual zero state suggestions to show for this page.
  //
  // If this list is empty, contexutal suggestions are not immediately available
  // for this page, but still can be obtained using the page content, if
  // `contextual_suggestions_eligible` is true.
  repeated string contextual_suggestions = 1;

  // Whether the page is eligible for contextual suggestions.
  //
  // If this is false, the client should show generic suggestions instead.
  // If this is true, the client should show the `contextual_suggestions` if
  // available, or generic suggestions if not.
  bool contextual_suggestions_eligible = 2;
}