1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_OMNIBOX_BROWSER_HISTORY_QUICK_PROVIDER_H_
#define COMPONENTS_OMNIBOX_BROWSER_HISTORY_QUICK_PROVIDER_H_
#include <optional>
#include "base/compiler_specific.h"
#include "base/gtest_prod_util.h"
#include "base/memory/raw_ptr.h"
#include "components/history/core/browser/history_types.h"
#include "components/omnibox/browser/autocomplete_input.h"
#include "components/omnibox/browser/autocomplete_match.h"
#include "components/omnibox/browser/history_provider.h"
#include "components/omnibox/browser/in_memory_url_index.h"
struct ScoredHistoryMatch;
// This class is an autocomplete provider (a pseudo-internal component of
// the history system) which quickly (and synchronously) provides matching
// results from recently or frequently visited sites in the profile's
// history.
class HistoryQuickProvider : public HistoryProvider {
public:
explicit HistoryQuickProvider(AutocompleteProviderClient* client);
HistoryQuickProvider(const HistoryQuickProvider&) = delete;
HistoryQuickProvider& operator=(const HistoryQuickProvider&) = delete;
// AutocompleteProvider. |minimal_changes| is ignored since there is no asynch
// completion performed.
void Start(const AutocompleteInput& input, bool minimal_changes) override;
// Estimates dynamic memory usage.
// See base/trace_event/memory_usage_estimator.h for more info.
size_t EstimateMemoryUsage() const override;
// Disable this provider. For unit testing purposes only. This is required
// because this provider is closely associated with the HistoryURLProvider
// and in order to properly test the latter the HistoryQuickProvider must
// be disabled.
// TODO(mrossetti): Eliminate this once the HUP has been refactored.
static void set_disabled(bool disabled) { disabled_ = disabled; }
private:
friend class HistoryQuickProviderTest;
~HistoryQuickProvider() override;
// Performs the autocomplete matching and scoring.
void DoAutocomplete();
// Predicts if there may be a URL-what-you-typed match. If so, returns a
// prediction of its score, which HQP suggestions shouldn't exceed. Returns
// `nullopt` otherwise. The goal is for URL-what-you-typed matches for visited
// URLs to beat out any longer URLs, no matter how frequently they're visited.
std::optional<int> MaxMatchScore();
// Creates an AutocompleteMatch from |history_match|, assigning it
// the score |score|.
AutocompleteMatch QuickMatchToACMatch(const ScoredHistoryMatch& history_match,
int score);
AutocompleteInput autocomplete_input_;
raw_ptr<InMemoryURLIndex> in_memory_url_index_; // Not owned by this class.
raw_ptr<const TemplateURL> starter_pack_engine_;
// This provider is disabled when true.
static bool disabled_;
};
#endif // COMPONENTS_OMNIBOX_BROWSER_HISTORY_QUICK_PROVIDER_H_
|
