1 // Copyright (c) 2011 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 // 6 // This file contains the Extension App autocomplete provider. The provider 7 // is responsible for keeping track of which Extension Apps are installed and 8 // their URLs. An instance of it gets created and managed by the autocomplete 9 // controller. 10 // 11 // For more information on the autocomplete system in general, including how 12 // the autocomplete controller and autocomplete providers work, see 13 // chrome/browser/autocomplete.h. 14 15 #ifndef CHROME_BROWSER_AUTOCOMPLETE_EXTENSION_APP_PROVIDER_H_ 16 #define CHROME_BROWSER_AUTOCOMPLETE_EXTENSION_APP_PROVIDER_H_ 17 #pragma once 18 19 #include <string> 20 #include <utility> 21 #include <vector> 22 23 #include "base/compiler_specific.h" 24 #include "chrome/browser/autocomplete/autocomplete.h" 25 #include "chrome/browser/autocomplete/autocomplete_match.h" 26 #include "content/common/notification_observer.h" 27 #include "content/common/notification_registrar.h" 28 29 class TemplateURLModel; 30 31 class ExtensionAppProvider : public AutocompleteProvider, 32 public NotificationObserver { 33 public: 34 ExtensionAppProvider(ACProviderListener* listener, Profile* profile); 35 36 // Only used for testing. 37 void AddExtensionAppForTesting(const std::string& app_name, 38 const std::string url); 39 40 // AutocompleteProvider implementation: 41 virtual void Start(const AutocompleteInput& input, 42 bool minimal_changes) OVERRIDE; 43 44 private: 45 // An ExtensionApp is a pair of Extension Name and the Launch URL. 46 typedef std::pair<std::string, std::string> ExtensionApp; 47 typedef std::vector<ExtensionApp> ExtensionApps; 48 49 virtual ~ExtensionAppProvider(); 50 51 // Fetch the current app list and cache it locally. 52 void RefreshAppList(); 53 54 // Register for install/uninstall notification so we can update our cache. 55 void RegisterForNotifications(); 56 57 // Highlights a certain part of a match string within a certain match class. 58 // |input| is the input we got from the user, |match_class| is the 59 // AutoComplete match classification that keeps track of the highlighting 60 // values, and |iter| is the location of the user input found within 61 // |match_string|. 62 void HighlightMatch(const AutocompleteInput& input, 63 ACMatchClassifications* match_class, 64 std::string::const_iterator iter, 65 const std::string& match_string); 66 67 // Calculate the relevance of the match. 68 int CalculateRelevance(AutocompleteInput::Type type, 69 int input_length, 70 int target_length, 71 const GURL& url); 72 73 // NotificationObserver implementation: 74 virtual void Observe(NotificationType type, 75 const NotificationSource& source, 76 const NotificationDetails& details) OVERRIDE; 77 78 NotificationRegistrar registrar_; 79 80 // Our cache of ExtensionApp objects (name + url) representing the extension 81 // apps we know about. 82 ExtensionApps extension_apps_; 83 84 DISALLOW_COPY_AND_ASSIGN(ExtensionAppProvider); 85 }; 86 87 #endif // CHROME_BROWSER_AUTOCOMPLETE_EXTENSION_APP_PROVIDER_H_ 88