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// Copyright 2025 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/cookie_controls/roll_back_mode_b_infobar_controller.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/sync/sync_service_factory.h"
#include "chrome/browser/ui/cookie_controls/roll_back_mode_b_infobar_delegate.h"
#include "components/infobars/content/content_infobar_manager.h"
#include "components/infobars/core/infobar.h"
#include "components/infobars/core/infobar_manager.h"
#include "components/prefs/pref_service.h"
#include "components/privacy_sandbox/tracking_protection_prefs.h"
#include "components/privacy_sandbox/tracking_protection_settings.h"
#include "content/public/browser/navigation_handle.h"
#include "content/public/browser/web_contents.h"
RollBackModeBInfoBarController::RollBackModeBInfoBarController(
content::WebContents* web_contents)
: content::WebContentsObserver(web_contents) {}
RollBackModeBInfoBarController::~RollBackModeBInfoBarController() = default;
void RollBackModeBInfoBarController::DidStartNavigation(
content::NavigationHandle* navigation_handle) {
Profile* profile =
Profile::FromBrowserContext(web_contents()->GetBrowserContext());
// Offboard here iff the user *did not* block 3PCs in Mode B and therefore
// will not need their 3PC blocking state updated (setting 3PC blocking
// state here creates a startup race condition with local pref resolution).
if (profile && navigation_handle->IsInPrimaryMainFrame() &&
!profile->GetPrefs()->GetBoolean(prefs::kBlockAll3pcToggleEnabled)) {
privacy_sandbox::MaybeSetRollbackPrefsModeB(
SyncServiceFactory::GetForProfile(profile), profile->GetPrefs());
}
}
void RollBackModeBInfoBarController::DidFinishNavigation(
content::NavigationHandle* navigation_handle) {
Profile* profile =
Profile::FromBrowserContext(web_contents()->GetBrowserContext());
if (infobar_ || !profile) {
return;
}
// Offboard here iff the user *did* block 3PCs in Mode B. There's no
// material difference between doing this here and on DidStartNavigation, as
// the user will continue having 3PCs blocked, and this avoids the race.
if (profile->GetPrefs()->GetBoolean(prefs::kBlockAll3pcToggleEnabled)) {
privacy_sandbox::MaybeSetRollbackPrefsModeB(
SyncServiceFactory::GetForProfile(profile), profile->GetPrefs());
return;
}
if (!navigation_handle->HasCommitted() ||
!navigation_handle->IsInPrimaryMainFrame() ||
!profile->GetPrefs()->GetBoolean(prefs::kShowRollbackUiModeB)) {
return;
}
if (auto* infobar_manager =
infobars::ContentInfoBarManager::FromWebContents(web_contents())) {
infobar_ = RollBackModeBInfoBarDelegate::Create(infobar_manager);
if (infobar_) {
infobar_scoped_observation_.Observe(infobar_manager);
profile->GetPrefs()->SetBoolean(prefs::kShowRollbackUiModeB, false);
}
}
}
void RollBackModeBInfoBarController::OnVisibilityChanged(
content::Visibility visibility) {
// Auto-dismiss `infobar_` if the tab is now hidden.
if (infobar_ && visibility == content::Visibility::HIDDEN) {
infobar_->RemoveSelf();
}
}
void RollBackModeBInfoBarController::OnInfoBarRemoved(
infobars::InfoBar* infobar,
bool animate) {
if (infobar == infobar_) {
infobar_scoped_observation_.Reset();
infobar_ = nullptr;
}
}
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