1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef COMPONENTS_OMNIBOX_AUTOCOMPLETE_SCHEME_CLASSIFIER_H_
6#define COMPONENTS_OMNIBOX_AUTOCOMPLETE_SCHEME_CLASSIFIER_H_
7
8#include <string>
9
10#include "components/metrics/proto/omnibox_input_type.pb.h"
11
12// An interface that gives embedders the ability to automatically classify the
13// omnibox input type based on an explicitly-specified schemes.  If users type
14// an input with an explicit scheme other than http, https, or file, this class
15// will be used to try and determine whether the input should be treated as a
16// URL (for known schemes we want to handle) or a query (for known schemes that
17// should be blocked), or if the scheme alone isn't sufficient to make a
18// determination.
19class AutocompleteSchemeClassifier {
20 public:
21  virtual ~AutocompleteSchemeClassifier() {}
22
23  // Checks |scheme| and returns the type of the input if the scheme is known
24  // and not blocked. Returns metrics::OmniboxInputType::INVALID if it's unknown
25  // or the classifier implementation cannot handle.
26  virtual metrics::OmniboxInputType::Type GetInputTypeForScheme(
27      const std::string& scheme) const = 0;
28};
29
30#endif  // COMPONENTS_OMNIBOX_AUTOCOMPLETE_SCHEME_CLASSIFIER_H_
31