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| 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_AUTOCOMPLETE_CLASSIFIER_H_ | |
| 6 #define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_CLASSIFIER_H_ | |
| 7 | |
| 8 #include "base/basictypes.h" | |
| 9 #include "base/compiler_specific.h" | |
| 10 #include "base/memory/scoped_ptr.h" | |
| 11 #include "base/strings/string16.h" | |
| 12 #include "components/keyed_service/core/keyed_service.h" | |
| 13 #include "components/metrics/proto/omnibox_event.pb.h" | |
| 14 #include "components/omnibox/autocomplete_scheme_classifier.h" | |
| 15 | |
| 16 class AutocompleteController; | |
| 17 struct AutocompleteMatch; | |
| 18 class GURL; | |
| 19 | |
| 20 class AutocompleteClassifier : public KeyedService { | |
| 21 public: | |
| 22 // Bitmap of AutocompleteProvider::Type values describing the default set of | |
| 23 // providers queried for the omnibox. Intended to be passed to | |
| 24 // AutocompleteController(). | |
| 25 static const int kDefaultOmniboxProviders; | |
| 26 | |
| 27 AutocompleteClassifier( | |
| 28 scoped_ptr<AutocompleteController> controller_, | |
| 29 scoped_ptr<AutocompleteSchemeClassifier> scheme_classifier); | |
| 30 ~AutocompleteClassifier() override; | |
| 31 | |
| 32 // Given some string |text| that the user wants to use for navigation, | |
| 33 // determines how it should be interpreted. | |
| 34 // |prefer_keyword| should be true the when keyword UI is onscreen; see | |
| 35 // comments on AutocompleteController::Start(). | |
| 36 // |allow_exact_keyword_match| should be true when treating the string as a | |
| 37 // potential keyword search is valid; see | |
| 38 // AutocompleteInput::allow_exact_keyword_match(). | |
| 39 // |page_classification| gives information about the context (e.g., is the | |
| 40 // user on a search results page doing search term replacement); this may | |
| 41 // be useful in deciding how the input should be interpreted. | |
| 42 // |match| should be a non-NULL outparam that will be set to the default | |
| 43 // match for this input, if any (for invalid input, there will be no default | |
| 44 // match, and |match| will be left unchanged). |alternate_nav_url| is a | |
| 45 // possibly-NULL outparam that, if non-NULL, will be set to the navigational | |
| 46 // URL (if any) in case of an accidental search; see comments on | |
| 47 // AutocompleteResult::alternate_nav_url_ in autocomplete.h. | |
| 48 void Classify(const base::string16& text, | |
| 49 bool prefer_keyword, | |
| 50 bool allow_exact_keyword_match, | |
| 51 metrics::OmniboxEventProto::PageClassification | |
| 52 page_classification, | |
| 53 AutocompleteMatch* match, | |
| 54 GURL* alternate_nav_url); | |
| 55 | |
| 56 private: | |
| 57 // KeyedService: | |
| 58 void Shutdown() override; | |
| 59 | |
| 60 scoped_ptr<AutocompleteController> controller_; | |
| 61 scoped_ptr<AutocompleteSchemeClassifier> scheme_classifier_; | |
| 62 | |
| 63 // Are we currently in Classify? Used to verify Classify isn't invoked | |
| 64 // recursively, since this can corrupt state and cause crashes. | |
| 65 bool inside_classify_; | |
| 66 | |
| 67 DISALLOW_IMPLICIT_CONSTRUCTORS(AutocompleteClassifier); | |
| 68 }; | |
| 69 | |
| 70 #endif // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_CLASSIFIER_H_ | |
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Chromium Code Reviews
Issue 1191373002:
Componentize AutocompleteController and its supporting cast (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@prep_builtin_provider_for_c14n