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// Copyright (c) 2012 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/google/google_search_counter.h"
#include "base/logging.h"
#include "chrome/browser/google/google_util.h"
#include "content/public/browser/navigation_controller.h"
#include "content/public/browser/navigation_details.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
namespace {
// Returns true iff |entry| represents a Google search from the Omnibox.
bool IsOmniboxGoogleSearchNavigation(const content::NavigationEntry& entry) {
content::PageTransition stripped_transition =
PageTransitionStripQualifier(entry.GetTransitionType());
return stripped_transition == content::PAGE_TRANSITION_GENERATED &&
google_util::IsGoogleSearchUrl(entry.GetURL().spec());
}
} // namespace
// static
void GoogleSearchCounter::RegisterForNotifications() {
GoogleSearchCounter::GetInstance()->RegisterForNotificationsInternal();
}
// static
GoogleSearchCounter* GoogleSearchCounter::GetInstance() {
return Singleton<GoogleSearchCounter>::get();
}
GoogleSearchCounter::GoogleSearchCounter()
: search_metrics_(new GoogleSearchMetrics) {
}
GoogleSearchCounter::~GoogleSearchCounter() {
}
void GoogleSearchCounter::ProcessCommittedEntry(
const content::NotificationSource& source,
const content::NotificationDetails& details) {
const content::LoadCommittedDetails* commit =
content::Details<content::LoadCommittedDetails>(details).ptr();
// If the commit is a GENERATED commit with a Google search URL, we know it's
// an Omnibox search.
if (IsOmniboxGoogleSearchNavigation(*commit->entry)) {
// Note that GoogleSearchMetrics logs metrics through UMA, which will only
// transmit these counts to the server if the user has opted into sending
// usage stats.
search_metrics_->RecordGoogleSearch(GoogleSearchMetrics::AP_OMNIBOX);
}
}
void GoogleSearchCounter::SetSearchMetricsForTesting(
GoogleSearchMetrics* search_metrics) {
DCHECK(search_metrics);
search_metrics_.reset(search_metrics);
}
void GoogleSearchCounter::RegisterForNotificationsInternal() {
// We always listen for all COMMITTED navigations from all sources, as any
// one of them could be a navigation of interest.
registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
}
void GoogleSearchCounter::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
switch (type) {
case content::NOTIFICATION_NAV_ENTRY_COMMITTED:
ProcessCommittedEntry(source, details);
break;
default:
NOTREACHED();
}
}
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