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      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_
     54