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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 // | 4 // |
| 5 // This file contains the zero-suggest autocomplete provider. This experimental | 5 // This file contains the zero-suggest autocomplete provider. This experimental |
| 6 // provider is invoked when the user focuses in the omnibox prior to editing, | 6 // provider is invoked when the user focuses in the omnibox prior to editing, |
| 7 // and generates search query suggestions based on the current URL. To enable | 7 // and generates search query suggestions based on the current URL. To enable |
| 8 // this provider, point --experimental-zero-suggest-url-prefix at an | 8 // this provider, point --experimental-zero-suggest-url-prefix at an |
| 9 // appropriate suggestion service. | 9 // appropriate suggestion service. |
| 10 // | 10 // |
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| 69 | 69 |
| 70 // net::URLFetcherDelegate | 70 // net::URLFetcherDelegate |
| 71 virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE; | 71 virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE; |
| 72 | 72 |
| 73 // Initiates a new fetch for the given |url| of classification | 73 // Initiates a new fetch for the given |url| of classification |
| 74 // |page_classification|. |permanent_text| is the omnibox text | 74 // |page_classification|. |permanent_text| is the omnibox text |
| 75 // for the current page. | 75 // for the current page. |
| 76 void StartZeroSuggest( | 76 void StartZeroSuggest( |
| 77 const GURL& curent_page_url, | 77 const GURL& curent_page_url, |
| 78 AutocompleteInput::PageClassification page_classification, | 78 AutocompleteInput::PageClassification page_classification, |
| 79 const string16& permanent_text); | 79 const base::string16& permanent_text); |
| 80 | 80 |
| 81 bool field_trial_triggered_in_session() const { | 81 bool field_trial_triggered_in_session() const { |
| 82 return field_trial_triggered_in_session_; | 82 return field_trial_triggered_in_session_; |
| 83 } | 83 } |
| 84 | 84 |
| 85 private: | 85 private: |
| 86 ZeroSuggestProvider(AutocompleteProviderListener* listener, | 86 ZeroSuggestProvider(AutocompleteProviderListener* listener, |
| 87 Profile* profile); | 87 Profile* profile); |
| 88 | 88 |
| 89 virtual ~ZeroSuggestProvider(); | 89 virtual ~ZeroSuggestProvider(); |
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| 110 | 110 |
| 111 // Creates an AutocompleteMatch with the provided |relevance| and |type| to | 111 // Creates an AutocompleteMatch with the provided |relevance| and |type| to |
| 112 // search |template_url| for |query_string|. |accepted_suggestion| will be | 112 // search |template_url| for |query_string|. |accepted_suggestion| will be |
| 113 // used to generate Assisted Query Stats. | 113 // used to generate Assisted Query Stats. |
| 114 // | 114 // |
| 115 // Adds this match to |map|; if such a match already exists, whichever one | 115 // Adds this match to |map|; if such a match already exists, whichever one |
| 116 // has lower relevance is eliminated. | 116 // has lower relevance is eliminated. |
| 117 void AddMatchToMap(int relevance, | 117 void AddMatchToMap(int relevance, |
| 118 AutocompleteMatch::Type type, | 118 AutocompleteMatch::Type type, |
| 119 const TemplateURL* template_url, | 119 const TemplateURL* template_url, |
| 120 const string16& query_string, | 120 const base::string16& query_string, |
| 121 int accepted_suggestion, | 121 int accepted_suggestion, |
| 122 SearchProvider::MatchMap* map); | 122 SearchProvider::MatchMap* map); |
| 123 | 123 |
| 124 // Returns an AutocompleteMatch for a navigational suggestion |navigation|. | 124 // Returns an AutocompleteMatch for a navigational suggestion |navigation|. |
| 125 AutocompleteMatch NavigationToMatch( | 125 AutocompleteMatch NavigationToMatch( |
| 126 const SearchProvider::NavigationResult& navigation); | 126 const SearchProvider::NavigationResult& navigation); |
| 127 | 127 |
| 128 // Fetches zero-suggest suggestions by sending a request using |suggest_url|. | 128 // Fetches zero-suggest suggestions by sending a request using |suggest_url|. |
| 129 void Run(const GURL& suggest_url); | 129 void Run(const GURL& suggest_url); |
| 130 | 130 |
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| 150 TemplateURLService* template_url_service_; | 150 TemplateURLService* template_url_service_; |
| 151 | 151 |
| 152 // The URL for which a suggestion fetch is pending. | 152 // The URL for which a suggestion fetch is pending. |
| 153 std::string current_query_; | 153 std::string current_query_; |
| 154 | 154 |
| 155 // The type of page the user is viewing (a search results page doing search | 155 // The type of page the user is viewing (a search results page doing search |
| 156 // term replacement, an arbitrary URL, etc.). | 156 // term replacement, an arbitrary URL, etc.). |
| 157 AutocompleteInput::PageClassification current_page_classification_; | 157 AutocompleteInput::PageClassification current_page_classification_; |
| 158 | 158 |
| 159 // Copy of OmniboxEditModel::permanent_text_. | 159 // Copy of OmniboxEditModel::permanent_text_. |
| 160 string16 permanent_text_; | 160 base::string16 permanent_text_; |
| 161 | 161 |
| 162 // Fetcher used to retrieve results. | 162 // Fetcher used to retrieve results. |
| 163 scoped_ptr<net::URLFetcher> fetcher_; | 163 scoped_ptr<net::URLFetcher> fetcher_; |
| 164 // Whether there's a pending request in flight. | 164 // Whether there's a pending request in flight. |
| 165 bool have_pending_request_; | 165 bool have_pending_request_; |
| 166 | 166 |
| 167 // Suggestion for the current URL. | 167 // Suggestion for the current URL. |
| 168 AutocompleteMatch current_url_match_; | 168 AutocompleteMatch current_url_match_; |
| 169 // Navigation suggestions for the most recent ZeroSuggest input URL. | 169 // Navigation suggestions for the most recent ZeroSuggest input URL. |
| 170 SearchProvider::NavigationResults navigation_results_; | 170 SearchProvider::NavigationResults navigation_results_; |
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| 186 | 186 |
| 187 history::MostVisitedURLList most_visited_urls_; | 187 history::MostVisitedURLList most_visited_urls_; |
| 188 | 188 |
| 189 // For callbacks that may be run after destruction. | 189 // For callbacks that may be run after destruction. |
| 190 base::WeakPtrFactory<ZeroSuggestProvider> weak_ptr_factory_; | 190 base::WeakPtrFactory<ZeroSuggestProvider> weak_ptr_factory_; |
| 191 | 191 |
| 192 DISALLOW_COPY_AND_ASSIGN(ZeroSuggestProvider); | 192 DISALLOW_COPY_AND_ASSIGN(ZeroSuggestProvider); |
| 193 }; | 193 }; |
| 194 | 194 |
| 195 #endif // CHROME_BROWSER_AUTOCOMPLETE_ZERO_SUGGEST_PROVIDER_H_ | 195 #endif // CHROME_BROWSER_AUTOCOMPLETE_ZERO_SUGGEST_PROVIDER_H_ |
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