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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/metrics/tab_stats/tab_stats_data_store.h"
#include <utility>
#include "base/containers/contains.h"
#include "chrome/browser/metrics/tab_stats/tab_stats_tracker.h"
#include "chrome/common/pref_names.h"
#include "components/prefs/pref_service.h"
#include "content/public/browser/web_contents.h"
namespace metrics {
TabStatsDataStore::TabsStats::TabsStats()
: total_tab_count(0U),
total_tab_count_max(0U),
max_tab_per_window(0U),
window_count(0U),
window_count_max(0U) {
tab_discard_counts.fill(0U);
tab_reload_counts.fill(0U);
}
TabStatsDataStore::TabsStats::TabsStats(const TabsStats& other) = default;
TabStatsDataStore::TabsStats& TabStatsDataStore::TabsStats::operator=(
const TabsStats& other) = default;
TabStatsDataStore::TabStatsDataStore(PrefService* pref_service)
: pref_service_(pref_service) {
DCHECK(pref_service);
tab_stats_.total_tab_count_max =
pref_service->GetInteger(::prefs::kTabStatsTotalTabCountMax);
tab_stats_.max_tab_per_window =
pref_service->GetInteger(::prefs::kTabStatsMaxTabsPerWindow);
tab_stats_.window_count_max =
pref_service->GetInteger(::prefs::kTabStatsWindowCountMax);
// Loads discard/reload counters.
tab_stats_.tab_discard_counts[static_cast<size_t>(
LifecycleUnitDiscardReason::EXTERNAL)] =
pref_service->GetInteger(::prefs::kTabStatsDiscardsExternal);
tab_stats_.tab_discard_counts[static_cast<size_t>(
LifecycleUnitDiscardReason::URGENT)] =
pref_service->GetInteger(::prefs::kTabStatsDiscardsUrgent);
tab_stats_.tab_discard_counts[static_cast<size_t>(
LifecycleUnitDiscardReason::PROACTIVE)] =
pref_service->GetInteger(::prefs::kTabStatsDiscardsProactive);
tab_stats_.tab_discard_counts[static_cast<size_t>(
LifecycleUnitDiscardReason::SUGGESTED)] =
pref_service->GetInteger(::prefs::kTabStatsDiscardsSuggested);
tab_stats_.tab_discard_counts[static_cast<size_t>(
LifecycleUnitDiscardReason::FROZEN_WITH_GROWING_MEMORY)] =
pref_service->GetInteger(
::prefs::kTabStatsDiscardsFrozenWithGrowingMemory);
tab_stats_.tab_reload_counts[static_cast<size_t>(
LifecycleUnitDiscardReason::EXTERNAL)] =
pref_service->GetInteger(::prefs::kTabStatsReloadsExternal);
tab_stats_.tab_reload_counts[static_cast<size_t>(
LifecycleUnitDiscardReason::URGENT)] =
pref_service->GetInteger(::prefs::kTabStatsReloadsUrgent);
tab_stats_.tab_reload_counts[static_cast<size_t>(
LifecycleUnitDiscardReason::PROACTIVE)] =
pref_service->GetInteger(::prefs::kTabStatsReloadsProactive);
tab_stats_.tab_reload_counts[static_cast<size_t>(
LifecycleUnitDiscardReason::SUGGESTED)] =
pref_service->GetInteger(::prefs::kTabStatsReloadsSuggested);
tab_stats_.tab_reload_counts[static_cast<size_t>(
LifecycleUnitDiscardReason::FROZEN_WITH_GROWING_MEMORY)] =
pref_service->GetInteger(
::prefs::kTabStatsReloadsFrozenWithGrowingMemory);
}
TabStatsDataStore::~TabStatsDataStore() = default;
void TabStatsDataStore::OnWindowAdded() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
tab_stats_.window_count++;
UpdateWindowCountMaxIfNeeded();
}
void TabStatsDataStore::OnWindowRemoved() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK_GT(tab_stats_.window_count, 0U);
tab_stats_.window_count--;
}
void TabStatsDataStore::OnTabAdded(content::WebContents* web_contents) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(web_contents);
++tab_stats_.total_tab_count;
RecordSamplingMetaData();
UpdateTotalTabCountMaxIfNeeded();
}
void TabStatsDataStore::OnTabRemoved(content::WebContents* web_contents) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(web_contents);
DCHECK_GT(tab_stats_.total_tab_count, 0U);
--tab_stats_.total_tab_count;
RecordSamplingMetaData();
}
void TabStatsDataStore::RecordSamplingMetaData() {
tab_number_sample_meta_data_.Set(tab_stats_.total_tab_count);
}
void TabStatsDataStore::UpdateMaxTabsPerWindowIfNeeded(size_t value) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (value <= tab_stats_.max_tab_per_window)
return;
tab_stats_.max_tab_per_window = value;
pref_service_->SetInteger(::prefs::kTabStatsMaxTabsPerWindow, value);
}
void TabStatsDataStore::ResetMaximumsToCurrentState() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
// Set the maximums to 0 and call the Update* functions to reset it to the
// current value and update the pref registry.
tab_stats_.max_tab_per_window = 0;
tab_stats_.window_count_max = 0;
tab_stats_.total_tab_count_max = 0;
UpdateTotalTabCountMaxIfNeeded();
UpdateWindowCountMaxIfNeeded();
// Iterates over the list of browsers to find the one with the maximum number
// of tabs opened.
TabStatsTracker::TabStripInterface::ForEach(
[this](const TabStatsTracker::TabStripInterface& tab_strip) {
UpdateMaxTabsPerWindowIfNeeded(tab_strip.GetTabCount());
});
}
void TabStatsDataStore::OnTabDiscardStateChange(
LifecycleUnitDiscardReason discard_reason,
bool is_discarded) {
size_t discard_reason_index = static_cast<size_t>(discard_reason);
size_t& count = is_discarded
? tab_stats_.tab_discard_counts[discard_reason_index]
: tab_stats_.tab_reload_counts[discard_reason_index];
count++;
switch (discard_reason) {
case LifecycleUnitDiscardReason::EXTERNAL:
if (is_discarded)
pref_service_->SetInteger(::prefs::kTabStatsDiscardsExternal, count);
else
pref_service_->SetInteger(::prefs::kTabStatsReloadsExternal, count);
break;
case LifecycleUnitDiscardReason::URGENT:
if (is_discarded)
pref_service_->SetInteger(::prefs::kTabStatsDiscardsUrgent, count);
else
pref_service_->SetInteger(::prefs::kTabStatsReloadsUrgent, count);
break;
case LifecycleUnitDiscardReason::PROACTIVE:
if (is_discarded) {
pref_service_->SetInteger(::prefs::kTabStatsDiscardsProactive, count);
} else {
pref_service_->SetInteger(::prefs::kTabStatsReloadsProactive, count);
}
break;
case LifecycleUnitDiscardReason::SUGGESTED:
if (is_discarded) {
pref_service_->SetInteger(::prefs::kTabStatsDiscardsSuggested, count);
} else {
pref_service_->SetInteger(::prefs::kTabStatsReloadsSuggested, count);
}
break;
case LifecycleUnitDiscardReason::FROZEN_WITH_GROWING_MEMORY:
if (is_discarded) {
pref_service_->SetInteger(
::prefs::kTabStatsDiscardsFrozenWithGrowingMemory, count);
} else {
pref_service_->SetInteger(
::prefs::kTabStatsReloadsFrozenWithGrowingMemory, count);
}
}
}
void TabStatsDataStore::ClearTabDiscardAndReloadCounts() {
tab_stats_.tab_discard_counts.fill(0U);
tab_stats_.tab_reload_counts.fill(0U);
pref_service_->SetInteger(::prefs::kTabStatsDiscardsExternal, 0);
pref_service_->SetInteger(::prefs::kTabStatsDiscardsUrgent, 0);
pref_service_->SetInteger(::prefs::kTabStatsDiscardsProactive, 0);
pref_service_->SetInteger(::prefs::kTabStatsDiscardsSuggested, 0);
pref_service_->SetInteger(::prefs::kTabStatsDiscardsFrozenWithGrowingMemory,
0);
pref_service_->SetInteger(::prefs::kTabStatsReloadsExternal, 0);
pref_service_->SetInteger(::prefs::kTabStatsReloadsUrgent, 0);
pref_service_->SetInteger(::prefs::kTabStatsReloadsProactive, 0);
pref_service_->SetInteger(::prefs::kTabStatsReloadsSuggested, 0);
pref_service_->SetInteger(::prefs::kTabStatsReloadsFrozenWithGrowingMemory,
0);
}
void TabStatsDataStore::UpdateTotalTabCountMaxIfNeeded() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (tab_stats_.total_tab_count <= tab_stats_.total_tab_count_max)
return;
tab_stats_.total_tab_count_max = tab_stats_.total_tab_count;
pref_service_->SetInteger(::prefs::kTabStatsTotalTabCountMax,
tab_stats_.total_tab_count_max);
}
void TabStatsDataStore::UpdateWindowCountMaxIfNeeded() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (tab_stats_.window_count <= tab_stats_.window_count_max)
return;
tab_stats_.window_count_max = tab_stats_.window_count;
pref_service_->SetInteger(::prefs::kTabStatsWindowCountMax,
tab_stats_.window_count_max);
}
} // namespace metrics
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