chrome/browser/autocomplete/history_provider.h

   1 // Copyright (c) 2012 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_AUTOCOMPLETE_HISTORY_PROVIDER_H_
   6 #define CHROME_BROWSER_AUTOCOMPLETE_HISTORY_PROVIDER_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "chrome/browser/autocomplete/autocomplete_provider.h"
  10 #include "chrome/browser/history/in_memory_url_index_types.h"
  11
  12 class AutocompleteInput;
  13 struct AutocompleteMatch;
  14
  15 // This class is a base class for the history autocomplete providers and
  16 // provides functions useful to all derived classes.
  17 class HistoryProvider : public AutocompleteProvider {
  18  public:
  19   virtual void DeleteMatch(const AutocompleteMatch& match) OVERRIDE;
  20
  21   // Returns true if inline autocompletion should be prevented for URL-like
  22   // input.  This method returns true if input.prevent_inline_autocomplete()
  23   // is true or the input text contains trailing whitespace.
  24   static bool PreventInlineAutocomplete(const AutocompleteInput& input);
  25
  26  protected:
  27   HistoryProvider(AutocompleteProviderListener* listener,
  28                   Profile* profile,
  29                   AutocompleteProvider::Type type);
  30   virtual ~HistoryProvider();
  31
  32   // Finds and removes the match from the current collection of matches and
  33   // backing data.
  34   void DeleteMatchFromMatches(const AutocompleteMatch& match);
  35
  36   // Fill and return an ACMatchClassifications structure given the |matches|
  37   // to highlight.
  38   static ACMatchClassifications SpansFromTermMatch(
  39       const history::TermMatches& matches,
  40       size_t text_length,
  41       bool is_url);
  42 };
  43
  44 #endif  // CHROME_BROWSER_AUTOCOMPLETE_HISTORY_PROVIDER_H_