1dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen// Copyright (c) 2011 The Chromium Authors. All rights reserved. 2c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Use of this source code is governed by a BSD-style license that can be 3c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// found in the LICENSE file. 4c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 5c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Contains the history backend wrapper around the in-memory URL database. This 6c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// object maintains an in-memory cache of the subset of history required to do 7c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// in-line autocomplete. 8c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// 9c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// It is created on the history thread and passed to the main thread where 10dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen// operations can be completed synchronously. It listens for notifications 11c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// from the "regular" history backend and keeps itself in sync. 12c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 13c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#ifndef CHROME_BROWSER_HISTORY_IN_MEMORY_HISTORY_BACKEND_H_ 14c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#define CHROME_BROWSER_HISTORY_IN_MEMORY_HISTORY_BACKEND_H_ 153345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick#pragma once 16c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 17731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick#include <string> 18731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick 19c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "base/basictypes.h" 20c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "base/gtest_prod_util.h" 21ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen#include "base/memory/scoped_ptr.h" 22ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen#include "content/common/notification_observer.h" 23ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen#include "content/common/notification_registrar.h" 24c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 25c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochclass FilePath; 263f50c38dc070f4bb515c1b64450dae14f316474eKristian Monsenclass GURL; 27c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochclass HistoryDatabase; 28c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochclass Profile; 29c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 30c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochnamespace history { 31c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 32c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochclass InMemoryDatabase; 33c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochclass InMemoryURLIndex; 34513209b27ff55e2841eac0e4120199c23acce758Ben Murdochstruct KeywordSearchTermDetails; 353345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrickclass URLDatabase; 36c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochstruct URLsDeletedDetails; 37c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochstruct URLsModifiedDetails; 38c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 39c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochclass InMemoryHistoryBackend : public NotificationObserver { 40c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch public: 41c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch InMemoryHistoryBackend(); 42c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch ~InMemoryHistoryBackend(); 43c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 44dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen // Initializes the backend from the history database pointed to by the 45dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen // full path in |history_filename|. |history_dir| is the path to the 46dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen // directory containing the history database and is also used 47dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen // as the directory where the InMemoryURLIndex's cache is kept. |db| is 48dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen // used for building the InMemoryURLIndex. |languages| gives the 49dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen // preferred user languages with which URLs and page titles are 50dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen // interpreted while decomposing into words and characters during indexing. 51731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick bool Init(const FilePath& history_filename, 52dc0f95d653279beabeb9817299e2902918ba123eKristian Monsen const FilePath& history_dir, 53731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick URLDatabase* db, 54731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick const std::string& languages); 55c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 56c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Does initialization work when this object is attached to the history 57c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // system on the main thread. The argument is the profile with which the 58c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // attached history service is under. 59c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch void AttachToHistoryService(Profile* profile); 60c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 61c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Returns the underlying database associated with this backend. The current 62c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // autocomplete code was written fro this, but it should probably be removed 63c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // so that it can deal directly with this object, rather than the DB. 64c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch InMemoryDatabase* db() const { 65c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return db_.get(); 66c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 67c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 68c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Notification callback. 69c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch virtual void Observe(NotificationType type, 70c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch const NotificationSource& source, 71c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch const NotificationDetails& details); 72c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 73731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick // Return the quick history index. 74731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick history::InMemoryURLIndex* InMemoryIndex() const { return index_.get(); } 75731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick 76c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch private: 77c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch FRIEND_TEST_ALL_PREFIXES(HistoryBackendTest, DeleteAll); 78c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 79c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Handler for NOTIFY_HISTORY_TYPED_URLS_MODIFIED. 80c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch void OnTypedURLsModified(const URLsModifiedDetails& details); 81c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 82c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Handler for NOTIFY_HISTORY_URLS_DELETED. 83c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch void OnURLsDeleted(const URLsDeletedDetails& details); 84c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 85513209b27ff55e2841eac0e4120199c23acce758Ben Murdoch // Handler for HISTORY_KEYWORD_SEARCH_TERM_UPDATED. 86513209b27ff55e2841eac0e4120199c23acce758Ben Murdoch void OnKeywordSearchTermUpdated(const KeywordSearchTermDetails& details); 87513209b27ff55e2841eac0e4120199c23acce758Ben Murdoch 883f50c38dc070f4bb515c1b64450dae14f316474eKristian Monsen // Returns true if there is a keyword associated with the specified url. 893f50c38dc070f4bb515c1b64450dae14f316474eKristian Monsen bool HasKeyword(const GURL& url); 903f50c38dc070f4bb515c1b64450dae14f316474eKristian Monsen 91c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch NotificationRegistrar registrar_; 92c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 93c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch scoped_ptr<InMemoryDatabase> db_; 94c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 95c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // The profile that this object is attached. May be NULL before 96c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // initialization. 97c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch Profile* profile_; 98c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 99731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick // The index used for quick history lookups. 100731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick scoped_ptr<history::InMemoryURLIndex> index_; 101731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick 102c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch DISALLOW_COPY_AND_ASSIGN(InMemoryHistoryBackend); 103c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch}; 104c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 105c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} // namespace history 106c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 107c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#endif // CHROME_BROWSER_HISTORY_IN_MEMORY_HISTORY_BACKEND_H_ 108