components/omnibox/browser/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 COMPONENTS_OMNIBOX_BROWSER_HISTORY_PROVIDER_H_
   6 #define COMPONENTS_OMNIBOX_BROWSER_HISTORY_PROVIDER_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "components/omnibox/browser/autocomplete_provider.h"
  10 #include "components/omnibox/browser/autocomplete_provider_client.h"
  11 #include "components/omnibox/browser/in_memory_url_index_types.h"
  12
  13 class AutocompleteInput;
  14 class Profile;
  15 struct AutocompleteMatch;
  16
  17 // This class is a base class for the history autocomplete providers and
  18 // provides functions useful to all derived classes.
  19 class HistoryProvider : public AutocompleteProvider {
  20  public:
  21   void DeleteMatch(const AutocompleteMatch& match) override;
  22
  23   // Returns true if inline autocompletion should be prevented for URL-like
  24   // input.  This method returns true if input.prevent_inline_autocomplete()
  25   // is true or the input text contains trailing whitespace.
  26   static bool PreventInlineAutocomplete(const AutocompleteInput& input);
  27
  28  protected:
  29   HistoryProvider(AutocompleteProvider::Type type,
  30                   AutocompleteProviderClient* client);
  31
  32   ~HistoryProvider() override;
  33
  34   // Finds and removes the match from the current collection of matches and
  35   // backing data.
  36   void DeleteMatchFromMatches(const AutocompleteMatch& match);
  37
  38   // Fill and return an ACMatchClassifications structure given the |matches|
  39   // to highlight.
  40   static ACMatchClassifications SpansFromTermMatch(const TermMatches& matches,
  41                                                    size_t text_length,
  42                                                    bool is_url);
  43
  44   AutocompleteProviderClient* client() { return client_; }
  45
  46  private:
  47   AutocompleteProviderClient* client_;
  48
  49   DISALLOW_COPY_AND_ASSIGN(HistoryProvider);
  50 };
  51
  52 #endif  // COMPONENTS_OMNIBOX_BROWSER_HISTORY_PROVIDER_H_