src/chrome/browser/ui/uma_browsing_activity_observer.cc

   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/uma_browsing_activity_observer.h"
   6
   7 #include "base/metrics/histogram.h"
   8 #include "chrome/browser/chrome_notification_types.h"
   9 #include "chrome/browser/search_engines/template_url_service_factory.h"
  10 #include "chrome/browser/ui/browser.h"
  11 #include "chrome/browser/ui/browser_finder.h"
  12 #include "chrome/browser/ui/browser_iterator.h"
  13 #include "chrome/browser/ui/browser_window.h"
  14 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  15 #include "components/search_engines/template_url_service.h"
  16 #include "content/public/browser/navigation_controller.h"
  17 #include "content/public/browser/navigation_details.h"
  18 #include "content/public/browser/navigation_entry.h"
  19 #include "content/public/browser/notification_service.h"
  20 #include "content/public/browser/render_process_host.h"
  21 #include "content/public/browser/user_metrics.h"
  22
  23 namespace chrome {
  24 namespace {
  25
  26 UMABrowsingActivityObserver* g_instance = NULL;
  27
  28 }  // namespace
  29
  30 // static
  31 void UMABrowsingActivityObserver::Init() {
  32   DCHECK(!g_instance);
  33   // Must be created before any Browsers are.
  34   DCHECK_EQ(0U, chrome::GetTotalBrowserCount());
  35   g_instance = new UMABrowsingActivityObserver;
  36 }
  37
  38 UMABrowsingActivityObserver::UMABrowsingActivityObserver() {
  39   registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
  40                   content::NotificationService::AllSources());
  41   registrar_.Add(this, chrome::NOTIFICATION_APP_TERMINATING,
  42                   content::NotificationService::AllSources());
  43 }
  44
  45 UMABrowsingActivityObserver::~UMABrowsingActivityObserver() {
  46 }
  47
  48 void UMABrowsingActivityObserver::Observe(
  49     int type,
  50     const content::NotificationSource& source,
  51     const content::NotificationDetails& details) {
  52   if (type == content::NOTIFICATION_NAV_ENTRY_COMMITTED) {
  53     const content::LoadCommittedDetails load =
  54         *content::Details<content::LoadCommittedDetails>(details).ptr();
  55
  56     content::NavigationController* controller =
  57       content::Source<content::NavigationController>(source).ptr();
  58     // Track whether the page loaded is a search results page (SRP). Track
  59     // the non-SRP navigations as well so there is a control.
  60     content::RecordAction(base::UserMetricsAction("NavEntryCommitted"));
  61     // Attempting to determine the cause of a crash originating from
  62     // IsSearchResultsPageFromDefaultSearchProvider but manifesting in
  63     // TemplateURLRef::ExtractSearchTermsFromURL(...).
  64     // See http://crbug.com/291348.
  65     CHECK(load.entry);
  66     if (TemplateURLServiceFactory::GetForProfile(
  67             Profile::FromBrowserContext(controller->GetBrowserContext()))->
  68             IsSearchResultsPageFromDefaultSearchProvider(
  69                 load.entry->GetURL())) {
  70       content::RecordAction(base::UserMetricsAction("NavEntryCommitted.SRP"));
  71     }
  72
  73     if (!load.is_navigation_to_different_page())
  74       return;  // Don't log for subframes or other trivial types.
  75
  76     LogRenderProcessHostCount();
  77     LogBrowserTabCount();
  78   } else if (type == chrome::NOTIFICATION_APP_TERMINATING) {
  79     delete g_instance;
  80     g_instance = NULL;
  81   }
  82 }
  83
  84 void UMABrowsingActivityObserver::LogRenderProcessHostCount() const {
  85   int hosts_count = 0;
  86   for (content::RenderProcessHost::iterator i(
  87           content::RenderProcessHost::AllHostsIterator());
  88         !i.IsAtEnd(); i.Advance())
  89     ++hosts_count;
  90   UMA_HISTOGRAM_CUSTOM_COUNTS("MPArch.RPHCountPerLoad", hosts_count,
  91                               1, 50, 50);
  92 }
  93
  94 void UMABrowsingActivityObserver::LogBrowserTabCount() const {
  95   int tab_count = 0;
  96   int app_window_count = 0;
  97   int popup_window_count = 0;
  98   int tabbed_window_count = 0;
  99   for (chrome::BrowserIterator it; !it.done(); it.Next()) {
 100     // Record how many tabs each window has open.
 101     Browser* browser = *it;
 102     UMA_HISTOGRAM_CUSTOM_COUNTS("Tabs.TabCountPerWindow",
 103                                 browser->tab_strip_model()->count(),
 104                                 1, 200, 50);
 105     tab_count += browser->tab_strip_model()->count();
 106
 107     if (browser->window()->IsActive()) {
 108       // Record how many tabs the active window has open.
 109       UMA_HISTOGRAM_CUSTOM_COUNTS("Tabs.TabCountActiveWindow",
 110                                   browser->tab_strip_model()->count(),
 111                                   1, 200, 50);
 112     }
 113
 114     if (browser->is_app())
 115       app_window_count++;
 116     else if (browser->is_type_popup())
 117       popup_window_count++;
 118     else if (browser->is_type_tabbed())
 119       tabbed_window_count++;
 120   }
 121   // Record how many tabs total are open (across all windows).
 122   UMA_HISTOGRAM_CUSTOM_COUNTS("Tabs.TabCountPerLoad", tab_count, 1, 200, 50);
 123
 124   // Record how many windows are open, by type.
 125   UMA_HISTOGRAM_COUNTS_100("WindowManager.AppWindowCountPerLoad",
 126                            app_window_count);
 127   UMA_HISTOGRAM_COUNTS_100("WindowManager.PopUpWindowCountPerLoad",
 128                            popup_window_count);
 129   UMA_HISTOGRAM_COUNTS_100("WindowManager.TabbedWindowCountPerLoad",
 130                            tabbed_window_count);
 131 }
 132
 133 }  // namespace chrome