most_visited_handler.cc revision 5d1f7b1de12d16ceb2c938c56701a3e8bfa558f7
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#include "chrome/browser/ui/webui/ntp/most_visited_handler.h" 6 7#include <set> 8 9#include "base/bind.h" 10#include "base/bind_helpers.h" 11#include "base/command_line.h" 12#include "base/md5.h" 13#include "base/memory/scoped_vector.h" 14#include "base/memory/singleton.h" 15#include "base/metrics/histogram.h" 16#include "base/prefs/pref_service.h" 17#include "base/prefs/scoped_user_pref_update.h" 18#include "base/strings/string16.h" 19#include "base/strings/string_number_conversions.h" 20#include "base/strings/utf_string_conversions.h" 21#include "base/threading/thread.h" 22#include "base/values.h" 23#include "chrome/browser/chrome_notification_types.h" 24#include "chrome/browser/history/most_visited_tiles_experiment.h" 25#include "chrome/browser/history/page_usage_data.h" 26#include "chrome/browser/history/top_sites.h" 27#include "chrome/browser/profiles/profile.h" 28#include "chrome/browser/ui/browser.h" 29#include "chrome/browser/ui/browser_finder.h" 30#include "chrome/browser/ui/tabs/tab_strip_model.h" 31#include "chrome/browser/ui/tabs/tab_strip_model_utils.h" 32#include "chrome/browser/ui/webui/favicon_source.h" 33#include "chrome/browser/ui/webui/ntp/new_tab_ui.h" 34#include "chrome/browser/ui/webui/ntp/ntp_stats.h" 35#include "chrome/browser/ui/webui/ntp/thumbnail_list_source.h" 36#include "chrome/browser/ui/webui/ntp/thumbnail_source.h" 37#include "chrome/common/pref_names.h" 38#include "chrome/common/url_constants.h" 39#include "components/user_prefs/pref_registry_syncable.h" 40#include "content/public/browser/navigation_controller.h" 41#include "content/public/browser/navigation_entry.h" 42#include "content/public/browser/notification_source.h" 43#include "content/public/browser/url_data_source.h" 44#include "content/public/browser/user_metrics.h" 45#include "content/public/browser/web_contents.h" 46#include "content/public/browser/web_ui.h" 47#include "grit/chromium_strings.h" 48#include "grit/generated_resources.h" 49#include "grit/locale_settings.h" 50#include "ui/base/l10n/l10n_util.h" 51#include "url/gurl.h" 52 53using base::UserMetricsAction; 54 55MostVisitedHandler::MostVisitedHandler() 56 : got_first_most_visited_request_(false), 57 most_visited_viewed_(false), 58 user_action_logged_(false), 59 weak_ptr_factory_(this) { 60} 61 62MostVisitedHandler::~MostVisitedHandler() { 63 if (!user_action_logged_ && most_visited_viewed_) { 64 const GURL ntp_url = GURL(chrome::kChromeUINewTabURL); 65 int action_id = NTP_FOLLOW_ACTION_OTHER; 66 content::NavigationEntry* entry = 67 web_ui()->GetWebContents()->GetController().GetLastCommittedEntry(); 68 if (entry && (entry->GetURL() != ntp_url)) { 69 action_id = 70 content::PageTransitionStripQualifier(entry->GetTransitionType()); 71 } 72 73 UMA_HISTOGRAM_ENUMERATION("NewTabPage.MostVisitedAction", action_id, 74 NUM_NTP_FOLLOW_ACTIONS); 75 } 76} 77 78void MostVisitedHandler::RegisterMessages() { 79 Profile* profile = Profile::FromWebUI(web_ui()); 80 // Set up our sources for thumbnail and favicon data. 81 content::URLDataSource::Add(profile, new ThumbnailSource(profile, false)); 82 content::URLDataSource::Add(profile, new ThumbnailSource(profile, true)); 83 84 // Set up our sources for top-sites data. 85 content::URLDataSource::Add(profile, new ThumbnailListSource(profile)); 86 87#if defined(OS_ANDROID) 88 // Register chrome://touch-icon as a data source for touch icons or favicons. 89 content::URLDataSource::Add(profile, 90 new FaviconSource(profile, FaviconSource::ANY)); 91#endif 92 // Register chrome://favicon as a data source for favicons. 93 content::URLDataSource::Add( 94 profile, new FaviconSource(profile, FaviconSource::FAVICON)); 95 96 history::TopSites* ts = profile->GetTopSites(); 97 if (ts) { 98 // TopSites updates itself after a delay. This is especially noticable when 99 // your profile is empty. Ask TopSites to update itself when we're about to 100 // show the new tab page. 101 ts->SyncWithHistory(); 102 103 // Register for notification when TopSites changes so that we can update 104 // ourself. 105 registrar_.Add(this, chrome::NOTIFICATION_TOP_SITES_CHANGED, 106 content::Source<history::TopSites>(ts)); 107 } 108 109 // We pre-emptively make a fetch for the most visited pages so we have the 110 // results sooner. 111 StartQueryForMostVisited(); 112 113 web_ui()->RegisterMessageCallback("getMostVisited", 114 base::Bind(&MostVisitedHandler::HandleGetMostVisited, 115 base::Unretained(this))); 116 117 // Register ourselves for any most-visited item blacklisting. 118 web_ui()->RegisterMessageCallback("blacklistURLFromMostVisited", 119 base::Bind(&MostVisitedHandler::HandleBlacklistUrl, 120 base::Unretained(this))); 121 web_ui()->RegisterMessageCallback("removeURLsFromMostVisitedBlacklist", 122 base::Bind(&MostVisitedHandler::HandleRemoveUrlsFromBlacklist, 123 base::Unretained(this))); 124 web_ui()->RegisterMessageCallback("clearMostVisitedURLsBlacklist", 125 base::Bind(&MostVisitedHandler::HandleClearBlacklist, 126 base::Unretained(this))); 127 web_ui()->RegisterMessageCallback("mostVisitedAction", 128 base::Bind(&MostVisitedHandler::HandleMostVisitedAction, 129 base::Unretained(this))); 130 web_ui()->RegisterMessageCallback("mostVisitedSelected", 131 base::Bind(&MostVisitedHandler::HandleMostVisitedSelected, 132 base::Unretained(this))); 133} 134 135void MostVisitedHandler::HandleGetMostVisited(const base::ListValue* args) { 136 if (!got_first_most_visited_request_) { 137 // If our initial data is already here, return it. 138 SendPagesValue(); 139 got_first_most_visited_request_ = true; 140 } else { 141 StartQueryForMostVisited(); 142 } 143} 144 145void MostVisitedHandler::SendPagesValue() { 146 if (pages_value_) { 147 Profile* profile = Profile::FromWebUI(web_ui()); 148 const base::DictionaryValue* url_blacklist = 149 profile->GetPrefs()->GetDictionary(prefs::kNtpMostVisitedURLsBlacklist); 150 bool has_blacklisted_urls = !url_blacklist->empty(); 151 history::TopSites* ts = profile->GetTopSites(); 152 if (ts) { 153 has_blacklisted_urls = ts->HasBlacklistedItems(); 154 155 MaybeRemovePageValues(); 156 } 157 158 base::FundamentalValue has_blacklisted_urls_value(has_blacklisted_urls); 159 web_ui()->CallJavascriptFunction("ntp.setMostVisitedPages", 160 *pages_value_, 161 has_blacklisted_urls_value); 162 pages_value_.reset(); 163 } 164} 165 166void MostVisitedHandler::StartQueryForMostVisited() { 167 history::TopSites* ts = Profile::FromWebUI(web_ui())->GetTopSites(); 168 if (ts) { 169 ts->GetMostVisitedURLs( 170 base::Bind(&MostVisitedHandler::OnMostVisitedUrlsAvailable, 171 weak_ptr_factory_.GetWeakPtr()), false); 172 } 173} 174 175void MostVisitedHandler::HandleBlacklistUrl(const base::ListValue* args) { 176 std::string url = base::UTF16ToUTF8(ExtractStringValue(args)); 177 BlacklistUrl(GURL(url)); 178} 179 180void MostVisitedHandler::HandleRemoveUrlsFromBlacklist( 181 const base::ListValue* args) { 182 DCHECK(args->GetSize() != 0); 183 184 for (base::ListValue::const_iterator iter = args->begin(); 185 iter != args->end(); ++iter) { 186 std::string url; 187 bool r = (*iter)->GetAsString(&url); 188 if (!r) { 189 NOTREACHED(); 190 return; 191 } 192 content::RecordAction(UserMetricsAction("MostVisited_UrlRemoved")); 193 history::TopSites* ts = Profile::FromWebUI(web_ui())->GetTopSites(); 194 if (ts) 195 ts->RemoveBlacklistedURL(GURL(url)); 196 } 197} 198 199void MostVisitedHandler::HandleClearBlacklist(const base::ListValue* args) { 200 content::RecordAction(UserMetricsAction("MostVisited_BlacklistCleared")); 201 202 history::TopSites* ts = Profile::FromWebUI(web_ui())->GetTopSites(); 203 if (ts) 204 ts->ClearBlacklistedURLs(); 205} 206 207void MostVisitedHandler::HandleMostVisitedAction(const base::ListValue* args) { 208 DCHECK(args); 209 210 double action_id; 211 if (!args->GetDouble(0, &action_id)) 212 NOTREACHED(); 213 214 UMA_HISTOGRAM_ENUMERATION("NewTabPage.MostVisitedAction", 215 static_cast<int>(action_id), 216 NUM_NTP_FOLLOW_ACTIONS); 217 most_visited_viewed_ = true; 218 user_action_logged_ = true; 219} 220 221void MostVisitedHandler::HandleMostVisitedSelected( 222 const base::ListValue* args) { 223 most_visited_viewed_ = true; 224} 225 226void MostVisitedHandler::SetPagesValueFromTopSites( 227 const history::MostVisitedURLList& data) { 228 pages_value_.reset(new base::ListValue); 229 230 history::MostVisitedURLList top_sites(data); 231 history::MostVisitedTilesExperiment::MaybeShuffle(&top_sites); 232 233 for (size_t i = 0; i < top_sites.size(); i++) { 234 const history::MostVisitedURL& url = top_sites[i]; 235 base::DictionaryValue* page_value = new base::DictionaryValue(); 236 if (url.url.is_empty()) { 237 page_value->SetBoolean("filler", true); 238 pages_value_->Append(page_value); 239 continue; 240 } 241 242 NewTabUI::SetUrlTitleAndDirection(page_value, 243 url.title, 244 url.url); 245 pages_value_->Append(page_value); 246 } 247} 248 249void MostVisitedHandler::OnMostVisitedUrlsAvailable( 250 const history::MostVisitedURLList& data) { 251 SetPagesValueFromTopSites(data); 252 if (got_first_most_visited_request_) { 253 SendPagesValue(); 254 } 255} 256 257void MostVisitedHandler::Observe(int type, 258 const content::NotificationSource& source, 259 const content::NotificationDetails& details) { 260 DCHECK_EQ(type, chrome::NOTIFICATION_TOP_SITES_CHANGED); 261 262 // Most visited urls changed, query again. 263 StartQueryForMostVisited(); 264} 265 266void MostVisitedHandler::BlacklistUrl(const GURL& url) { 267 history::TopSites* ts = Profile::FromWebUI(web_ui())->GetTopSites(); 268 if (ts) 269 ts->AddBlacklistedURL(url); 270 content::RecordAction(UserMetricsAction("MostVisited_UrlBlacklisted")); 271} 272 273std::string MostVisitedHandler::GetDictionaryKeyForUrl(const std::string& url) { 274 return base::MD5String(url); 275} 276 277void MostVisitedHandler::MaybeRemovePageValues() { 278// The code below uses APIs not available on Android and the experiment should 279// not run there. 280#if !defined(OS_ANDROID) 281 if (!history::MostVisitedTilesExperiment::IsDontShowOpenURLsEnabled()) 282 return; 283 284 TabStripModel* tab_strip_model = chrome::FindBrowserWithWebContents( 285 web_ui()->GetWebContents())->tab_strip_model(); 286 history::TopSites* top_sites = Profile::FromWebUI(web_ui())->GetTopSites(); 287 if (!tab_strip_model || !top_sites) { 288 NOTREACHED(); 289 return; 290 } 291 292 std::set<std::string> open_urls; 293 chrome::GetOpenUrls(*tab_strip_model, *top_sites, &open_urls); 294 history::MostVisitedTilesExperiment::RemovePageValuesMatchingOpenTabs( 295 open_urls, 296 pages_value_.get()); 297#endif 298} 299 300// static 301void MostVisitedHandler::RegisterProfilePrefs( 302 user_prefs::PrefRegistrySyncable* registry) { 303 registry->RegisterDictionaryPref( 304 prefs::kNtpMostVisitedURLsBlacklist, 305 user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF); 306} 307