components/autofill/core/common/autofill_util.h

   1 // Copyright 2015 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_AUTOFILL_CORE_COMMON_AUTOFILL_UTIL_H_
   6 #define COMPONENTS_AUTOFILL_CORE_COMMON_AUTOFILL_UTIL_H_
   7
   8 #include "base/strings/string16.h"
   9
  10 namespace autofill {
  11
  12 // Returns true when command line switch |kEnableSuggestionsWithSubstringMatch|
  13 // is on.
  14 bool IsFeatureSubstringMatchEnabled();
  15
  16 // Returns true when keyboard accessory is enabled.
  17 bool IsKeyboardAccessoryEnabled();
  18
  19 // A token is a sequences of contiguous characters separated by any of the
  20 // characters that are part of delimiter set {' ', '.', ',', '-', '_', '@'}.
  21
  22 // Returns true if the |field_contents| is a substring of the |suggestion|
  23 // starting at token boundaries. |field_contents| can span multiple |suggestion|
  24 // tokens.
  25 bool FieldIsSuggestionSubstringStartingOnTokenBoundary(
  26     const base::string16& suggestion,
  27     const base::string16& field_contents,
  28     bool case_sensitive);
  29
  30 // Finds the first occurrence of a searched substring |field_contents| within
  31 // the string |suggestion| starting at token boundaries and returns the index to
  32 // the end of the located substring, or base::string16::npos if the substring is
  33 // not found. "preview-on-hover" feature is one such use case where the
  34 // substring |field_contents| may not be found within the string |suggestion|.
  35 size_t GetTextSelectionStart(const base::string16& suggestion,
  36                              const base::string16& field_contents,
  37                              bool case_sensitive);
  38
  39 }  // namespace autofill
  40
  41 #endif  // COMPONENTS_AUTOFILL_CORE_COMMON_AUTOFILL_UTIL_H_