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| 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 #include "chrome/browser/history/top_sites_backend.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/bind_helpers.h" | |
| 9 #include "base/files/file_path.h" | |
| 10 #include "base/memory/ref_counted.h" | |
| 11 #include "base/task/cancelable_task_tracker.h" | |
| 12 #include "chrome/browser/history/top_sites_database.h" | |
| 13 #include "content/public/browser/browser_thread.h" | |
| 14 #include "sql/connection.h" | |
| 15 | |
| 16 using content::BrowserThread; | |
| 17 | |
| 18 namespace history { | |
| 19 | |
| 20 TopSitesBackend::TopSitesBackend() | |
| 21 : db_(new TopSitesDatabase()) { | |
| 22 } | |
| 23 | |
| 24 void TopSitesBackend::Init(const base::FilePath& path) { | |
| 25 db_path_ = path; | |
| 26 BrowserThread::PostTask( | |
| 27 BrowserThread::DB, FROM_HERE, | |
| 28 base::Bind(&TopSitesBackend::InitDBOnDBThread, this, path)); | |
| 29 } | |
| 30 | |
| 31 void TopSitesBackend::Shutdown() { | |
| 32 BrowserThread::PostTask( | |
| 33 BrowserThread::DB, FROM_HERE, | |
| 34 base::Bind(&TopSitesBackend::ShutdownDBOnDBThread, this)); | |
| 35 } | |
| 36 | |
| 37 void TopSitesBackend::GetMostVisitedThumbnails( | |
| 38 const GetMostVisitedThumbnailsCallback& callback, | |
| 39 base::CancelableTaskTracker* tracker) { | |
| 40 scoped_refptr<MostVisitedThumbnails> thumbnails = new MostVisitedThumbnails(); | |
| 41 | |
| 42 tracker->PostTaskAndReply( | |
| 43 BrowserThread::GetMessageLoopProxyForThread(BrowserThread::DB).get(), | |
| 44 FROM_HERE, | |
| 45 base::Bind(&TopSitesBackend::GetMostVisitedThumbnailsOnDBThread, | |
| 46 this, | |
| 47 thumbnails), | |
| 48 base::Bind(callback, thumbnails)); | |
| 49 } | |
| 50 | |
| 51 void TopSitesBackend::UpdateTopSites(const TopSitesDelta& delta) { | |
| 52 BrowserThread::PostTask( | |
| 53 BrowserThread::DB, FROM_HERE, | |
| 54 base::Bind(&TopSitesBackend::UpdateTopSitesOnDBThread, this, delta)); | |
| 55 } | |
| 56 | |
| 57 void TopSitesBackend::SetPageThumbnail(const MostVisitedURL& url, | |
| 58 int url_rank, | |
| 59 const Images& thumbnail) { | |
| 60 BrowserThread::PostTask( | |
| 61 BrowserThread::DB, FROM_HERE, | |
| 62 base::Bind(&TopSitesBackend::SetPageThumbnailOnDBThread, this, url, | |
| 63 url_rank, thumbnail)); | |
| 64 } | |
| 65 | |
| 66 void TopSitesBackend::ResetDatabase() { | |
| 67 BrowserThread::PostTask( | |
| 68 BrowserThread::DB, FROM_HERE, | |
| 69 base::Bind(&TopSitesBackend::ResetDatabaseOnDBThread, this, db_path_)); | |
| 70 } | |
| 71 | |
| 72 void TopSitesBackend::DoEmptyRequest(const base::Closure& reply, | |
| 73 base::CancelableTaskTracker* tracker) { | |
| 74 tracker->PostTaskAndReply( | |
| 75 BrowserThread::GetMessageLoopProxyForThread(BrowserThread::DB).get(), | |
| 76 FROM_HERE, | |
| 77 base::Bind(&base::DoNothing), | |
| 78 reply); | |
| 79 } | |
| 80 | |
| 81 TopSitesBackend::~TopSitesBackend() { | |
| 82 DCHECK(!db_); // Shutdown should have happened first (which results in | |
| 83 // nulling out db). | |
| 84 } | |
| 85 | |
| 86 void TopSitesBackend::InitDBOnDBThread(const base::FilePath& path) { | |
| 87 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB)); | |
| 88 if (!db_->Init(path)) { | |
| 89 LOG(ERROR) << "Failed to initialize database."; | |
| 90 db_.reset(); | |
| 91 } | |
| 92 } | |
| 93 | |
| 94 void TopSitesBackend::ShutdownDBOnDBThread() { | |
| 95 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB)); | |
| 96 db_.reset(); | |
| 97 } | |
| 98 | |
| 99 void TopSitesBackend::GetMostVisitedThumbnailsOnDBThread( | |
| 100 scoped_refptr<MostVisitedThumbnails> thumbnails) { | |
| 101 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB)); | |
| 102 | |
| 103 if (db_) { | |
| 104 db_->GetPageThumbnails(&(thumbnails->most_visited), | |
| 105 &(thumbnails->url_to_images_map)); | |
| 106 } | |
| 107 } | |
| 108 | |
| 109 void TopSitesBackend::UpdateTopSitesOnDBThread(const TopSitesDelta& delta) { | |
| 110 if (!db_) | |
| 111 return; | |
| 112 | |
| 113 for (size_t i = 0; i < delta.deleted.size(); ++i) | |
| 114 db_->RemoveURL(delta.deleted[i]); | |
| 115 | |
| 116 for (size_t i = 0; i < delta.added.size(); ++i) | |
| 117 db_->SetPageThumbnail(delta.added[i].url, delta.added[i].rank, Images()); | |
| 118 | |
| 119 for (size_t i = 0; i < delta.moved.size(); ++i) | |
| 120 db_->UpdatePageRank(delta.moved[i].url, delta.moved[i].rank); | |
| 121 } | |
| 122 | |
| 123 void TopSitesBackend::SetPageThumbnailOnDBThread(const MostVisitedURL& url, | |
| 124 int url_rank, | |
| 125 const Images& thumbnail) { | |
| 126 if (!db_) | |
| 127 return; | |
| 128 | |
| 129 db_->SetPageThumbnail(url, url_rank, thumbnail); | |
| 130 } | |
| 131 | |
| 132 void TopSitesBackend::ResetDatabaseOnDBThread(const base::FilePath& file_path) { | |
| 133 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB)); | |
| 134 db_.reset(NULL); | |
| 135 sql::Connection::Delete(db_path_); | |
| 136 db_.reset(new TopSitesDatabase()); | |
| 137 InitDBOnDBThread(db_path_); | |
| 138 } | |
| 139 | |
| 140 } // namespace history | |
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Chromium Code Reviews
Issue 870063002:
Componentize TopSites, TopSitesBackend, TopSitesDatabase (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@815983002