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// Copyright 2012 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/ui/android/tab_model/tab_model.h"
#include "base/metrics/histogram_functions.h"
#include "base/notimplemented.h"
#include "build/android_buildflags.h"
#include "chrome/browser/android/tab_android.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/sync/glue/synced_window_delegate_android.h"
#include "chrome/browser/sync/session_sync_service_factory.h"
#include "chrome/browser/sync/sessions/sync_sessions_web_contents_router.h"
#include "chrome/browser/sync/sessions/sync_sessions_web_contents_router_factory.h"
#include "components/omnibox/browser/location_bar_model_impl.h"
#include "components/sessions/core/session_id.h"
#include "components/sync_sessions/open_tabs_ui_delegate.h"
#include "components/sync_sessions/session_sync_service.h"
#include "ui/base/unowned_user_data/scoped_unowned_user_data.h"
#if BUILDFLAG(IS_DESKTOP_ANDROID)
#include "chrome/browser/ui/browser_window/public/browser_window_interface.h" // nogncheck
#endif
using chrome::android::ActivityType;
// Keep this in sync with
// chrome/android/java/src/org/chromium/chrome/browser/tabmodel/TabList.java
static int INVALID_TAB_INDEX = -1;
namespace {
sync_sessions::OpenTabsUIDelegate* GetOpenTabsUIDelegate(Profile* profile) {
sync_sessions::SessionSyncService* service =
SessionSyncServiceFactory::GetForProfile(profile);
return service->GetOpenTabsUIDelegate();
}
// Returns the initial |SessionID| for |TabModel|.
//
// On desktop Android, |BrowserWindowInterface| should be the source of truth
// for |SessionID|, so we use the invalid value as the initial |SessionID| and
// set a valid |SessionID| during
// |TabModelJniBridge::AssociateWithBrowserWindow|. This aligns with the
// implementation on other desktop platforms.
//
// On other Android platforms, there is no |BrowserWindowInterface|, and
// |TabModel| has been the source of truth for |SessionID|, so we can use
// |SessionID:NewUnique|.
//
// TODO(http://crbug.com/444518651): remove the if-def when
// |BrowserWindowInterface| is compiled into all Android builds.
SessionID GetInitialSessionId() {
#if BUILDFLAG(IS_DESKTOP_ANDROID)
return SessionID::InvalidValue();
#else
return SessionID::NewUnique();
#endif
}
} // namespace
DEFINE_USER_DATA(TabModel);
TabModel::TabModel(Profile* profile, ActivityType activity_type)
: profile_(profile),
activity_type_(activity_type),
live_tab_context_(new AndroidLiveTabContext(this)),
synced_window_delegate_(new browser_sync::SyncedWindowDelegateAndroid(
this,
activity_type == ActivityType::kTabbed)),
session_id_(GetInitialSessionId()) {}
TabModel::~TabModel() = default;
Profile* TabModel::GetProfile() const {
return profile_;
}
bool TabModel::IsOffTheRecord() const {
return GetProfile()->IsOffTheRecord();
}
sync_sessions::SyncedWindowDelegate* TabModel::GetSyncedWindowDelegate() const {
return synced_window_delegate_.get();
}
SessionID TabModel::GetSessionId() const {
return session_id_;
}
sessions::LiveTabContext* TabModel::GetLiveTabContext() const {
return live_tab_context_.get();
}
content::WebContents* TabModel::GetActiveWebContents() const {
int active_index = GetActiveIndex();
if (active_index == INVALID_TAB_INDEX) {
return nullptr;
}
return GetWebContentsAt(active_index);
}
void TabModel::BroadcastSessionRestoreComplete() {
sync_sessions::SyncSessionsWebContentsRouter* router =
sync_sessions::SyncSessionsWebContentsRouterFactory::GetForProfile(
GetProfile());
if (router) {
router->NotifySessionRestoreComplete();
}
RecordActualSyncedTabsHistogram();
}
// This logic is loosely based off of
// TabContentsSyncedTabDelegate::ShouldSync().
void TabModel::RecordActualSyncedTabsHistogram() {
sync_sessions::OpenTabsUIDelegate* open_tabs_delegate =
GetOpenTabsUIDelegate(GetProfile());
// This null check will early exit if the user is in incognito mode or
// if the user has opted out of syncing tabs.
if (!open_tabs_delegate) {
return;
}
// This null check will early exit if the user has a null sync session,
// which includes but is not limited to: no synced tabs or an opt out of
// syncing tabs even if sync is enabled.
const sync_sessions::SyncedSession* local_session = nullptr;
if (!open_tabs_delegate->GetLocalSession(&local_session)) {
return;
}
// This check will early exit if there are no tabs in the local model.
if (GetTabCount() == 0) {
return;
}
int synced_tabs_count = 0;
for (const auto& [window_id, window] : local_session->windows) {
synced_tabs_count += window->wrapped_window.tabs.size();
}
int eligible_tabs_count = 0;
for (int i = 0; i < GetTabCount(); i++) {
if (SessionSyncServiceFactory::ShouldSyncURLForTestingAndMetrics(
GetTabAt(i)->GetURL())) {
eligible_tabs_count++;
}
}
// Prevent dividing by 0 in case all tabs are filtered out.
if (eligible_tabs_count == 0) {
return;
}
int percent_synced = synced_tabs_count * 100 / eligible_tabs_count;
base::UmaHistogramPercentage("Android.Sync.ActualSyncedTabCountPercentage",
percent_synced);
}
// TODO(http://crbug.com/444518651): remove the if-def when
// |BrowserWindowInterface| is compiled into all Android builds.
#if BUILDFLAG(IS_DESKTOP_ANDROID)
void TabModel::SetSessionId(SessionID session_id) {
session_id_ = session_id;
}
// static
// From //chrome/browser/ui/tabs/tab_list_interface.h
TabListInterface* TabListInterface::From(
BrowserWindowInterface* browser_window_interface) {
return ui::ScopedUnownedUserData<TabModel>::Get(
browser_window_interface->GetUnownedUserDataHost());
}
#endif
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