components/search/search_provider_observer.cc

   1 // Copyright 2019 The Chromium Authors
   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 "components/search/search_provider_observer.h"
   6 #include "components/search/search.h"
   7
   8 SearchProviderObserver::SearchProviderObserver(TemplateURLService* service,
   9                                                base::RepeatingClosure callback)
  10     : service_(service),
  11       is_google_(search::DefaultSearchProviderIsGoogle(service_)),
  12       callback_(std::move(callback)) {
  13   if (service_) {
  14     service_observation_.Observe(service_.get());
  15   }
  16 }
  17
  18 SearchProviderObserver::~SearchProviderObserver() = default;
  19
  20 bool SearchProviderObserver::is_google() {
  21   return is_google_;
  22 }
  23
  24 void SearchProviderObserver::OnTemplateURLServiceChanged() {
  25   DCHECK(service_);
  26   is_google_ = search::DefaultSearchProviderIsGoogle(service_);
  27   callback_.Run();
  28 }
  29
  30 void SearchProviderObserver::OnTemplateURLServiceShuttingDown() {
  31   DCHECK(service_);
  32   DCHECK(service_observation_.IsObservingSource(service_.get()));
  33   service_observation_.Reset();
  34   service_ = nullptr;
  35 }