components/omnibox/autocomplete_scheme_classifier.h

   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.
  19 class 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_