chrome/browser/chromeos/drive/search_metadata.h

   1 // Copyright (c) 2013 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 CHROME_BROWSER_CHROMEOS_DRIVE_SEARCH_METADATA_H_
   6 #define CHROME_BROWSER_CHROMEOS_DRIVE_SEARCH_METADATA_H_
   7
   8 #include <string>
   9
  10 #include "chrome/browser/chromeos/drive/file_system_interface.h"
  11
  12 namespace base {
  13 namespace i18n {
  14 class FixedPatternStringSearchIgnoringCaseAndAccents;
  15 }  // namespace i18n
  16 }  // namespace base
  17
  18 namespace drive {
  19 namespace internal {
  20
  21 class ResourceMetadata;
  22
  23 // Searches the local resource metadata, and returns the entries
  24 // |at_most_num_matches| that contain |query| in their base names. Search is
  25 // done in a case-insensitive fashion. The eligible entries are selected based
  26 // on the given |options|, which is a bit-wise OR of SearchMetadataOptions.
  27 // |callback| must not be null. Must be called on UI thread. Empty |query|
  28 // matches any base name. i.e. returns everything. |blocking_task_runner| must
  29 // be the same one as |resource_metadata| uses.
  30 void SearchMetadata(
  31     scoped_refptr<base::SequencedTaskRunner> blocking_task_runner,
  32     ResourceMetadata* resource_metadata,
  33     const std::string& query,
  34     int search_options,
  35     int at_most_num_matches,
  36     const SearchMetadataCallback& callback);
  37
  38 // Finds |query| in |text| while ignoring cases or accents. Cases of non-ASCII
  39 // characters are also ignored; they are compared in the 'Primary Level' of
  40 // http://userguide.icu-project.org/collation/concepts.
  41 // Returns true if |query| is found. |highlighted_text| will have the original
  42 // text with matched portions highlighted with <b> tag (only the first match
  43 // is highlighted). Meta characters are escaped like &lt;. The original
  44 // contents of |highlighted_text| will be lost.
  45 bool FindAndHighlight(
  46     const std::string& text,
  47     base::i18n::FixedPatternStringSearchIgnoringCaseAndAccents* query,
  48     std::string* highlighted_text);
  49
  50 }  // namespace internal
  51 }  // namespace drive
  52
  53 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_SEARCH_METADATA_H_