chrome/browser/ui/toolbar/app_menu_icon_controller.cc

// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ui/toolbar/app_menu_icon_controller.h"

#include "base/logging.h"
#include "build/build_config.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/ui/global_error/global_error_service.h"
#include "chrome/browser/ui/global_error/global_error_service_factory.h"
#include "chrome/browser/upgrade_detector.h"

#if defined(OS_WIN)
#include "base/feature_list.h"
#include "base/win/windows_version.h"
#include "chrome/browser/win/enumerate_modules_model.h"
#include "chrome/common/chrome_features.h"
#endif

namespace {

// Maps an upgrade level to a severity level.
AppMenuIconController::Severity SeverityFromUpgradeLevel(
    UpgradeDetector::UpgradeNotificationAnnoyanceLevel level) {
  switch (level) {
    case UpgradeDetector::UPGRADE_ANNOYANCE_NONE:
      return AppMenuIconController::Severity::NONE;
    case UpgradeDetector::UPGRADE_ANNOYANCE_LOW:
      return AppMenuIconController::Severity::LOW;
    case UpgradeDetector::UPGRADE_ANNOYANCE_ELEVATED:
      return AppMenuIconController::Severity::MEDIUM;
    case UpgradeDetector::UPGRADE_ANNOYANCE_HIGH:
    case UpgradeDetector::UPGRADE_ANNOYANCE_CRITICAL:
      return AppMenuIconController::Severity::HIGH;
  }
  NOTREACHED();
  return AppMenuIconController::Severity::NONE;
}

// Checks if the app menu icon should be animated for the given upgrade level.
bool ShouldAnimateUpgradeLevel(
    UpgradeDetector::UpgradeNotificationAnnoyanceLevel level) {
  return level != UpgradeDetector::UPGRADE_ANNOYANCE_NONE;
}

// Returns true if we should show the upgrade recommended icon.
bool ShouldShowUpgradeRecommended() {
#if defined(OS_CHROMEOS)
  // In chromeos, the update recommendation is shown in the system tray. So it
  // should not be displayed in the app menu.
  return false;
#else
  return UpgradeDetector::GetInstance()->notify_upgrade();
#endif
}

// Returns true if we should show the warning for incompatible software.
bool ShouldShowIncompatibilityWarning() {
#if defined(OS_WIN)
  return !base::FeatureList::IsEnabled(features::kModuleDatabase) &&
         EnumerateModulesModel::GetInstance()->ShouldShowConflictWarning();
#else
  return false;
#endif
}

}  // namespace

AppMenuIconController::AppMenuIconController(Profile* profile,
                                             Delegate* delegate)
    : profile_(profile), delegate_(delegate) {
  DCHECK(profile_);
  DCHECK(delegate_);

  registrar_.Add(this, chrome::NOTIFICATION_GLOBAL_ERRORS_CHANGED,
                 content::Source<Profile>(profile_));

  UpgradeDetector::GetInstance()->AddObserver(this);

#if defined(OS_WIN)
  if (!base::FeatureList::IsEnabled(features::kModuleDatabase)) {
    auto* modules = EnumerateModulesModel::GetInstance();
    modules->AddObserver(this);
    modules->MaybePostScanningTask();
  }
#endif
}

AppMenuIconController::~AppMenuIconController() {
  UpgradeDetector::GetInstance()->RemoveObserver(this);

#if defined(OS_WIN)
  if (!base::FeatureList::IsEnabled(features::kModuleDatabase))
    EnumerateModulesModel::GetInstance()->RemoveObserver(this);
#endif
}

void AppMenuIconController::UpdateDelegate() {
  if (ShouldShowUpgradeRecommended()) {
    UpgradeDetector::UpgradeNotificationAnnoyanceLevel level =
        UpgradeDetector::GetInstance()->upgrade_notification_stage();
    delegate_->UpdateSeverity(IconType::UPGRADE_NOTIFICATION,
                              SeverityFromUpgradeLevel(level),
                              ShouldAnimateUpgradeLevel(level));
    return;
  }

  if (ShouldShowIncompatibilityWarning()) {
    delegate_->UpdateSeverity(IconType::INCOMPATIBILITY_WARNING,
                              Severity::MEDIUM, true);
    return;
  }

  if (GlobalErrorServiceFactory::GetForProfile(profile_)
          ->GetHighestSeverityGlobalErrorWithAppMenuItem()) {
    // If you change the severity here, make sure to also change the menu icon
    // and the bubble icon.
    delegate_->UpdateSeverity(IconType::GLOBAL_ERROR,
                              Severity::MEDIUM, true);
    return;
  }

  delegate_->UpdateSeverity(IconType::NONE, Severity::NONE, false);
}

#if defined(OS_WIN)
void AppMenuIconController::OnScanCompleted() {
  UpdateDelegate();
}

void AppMenuIconController::OnConflictsAcknowledged() {
  UpdateDelegate();
}
#endif

void AppMenuIconController::Observe(
    int type,
    const content::NotificationSource& source,
    const content::NotificationDetails& details) {
  DCHECK_EQ(chrome::NOTIFICATION_GLOBAL_ERRORS_CHANGED, type);
  UpdateDelegate();
}

void AppMenuIconController::OnUpgradeRecommended() {
  UpdateDelegate();
}