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// Copyright 2024 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/rlz/chrome_rlz_tracker_web_contents_observer.h"
#include "components/google/core/common/google_util.h"
#include "components/rlz/rlz_tracker.h"
#include "content/public/browser/navigation_controller.h"
#include "content/public/browser/navigation_details.h"
#include "content/public/browser/navigation_entry.h"
ChromeRLZTrackerWebContentsObserver::ChromeRLZTrackerWebContentsObserver(
content::WebContents* web_contents)
: content::WebContentsObserver(web_contents),
content::WebContentsUserData<ChromeRLZTrackerWebContentsObserver>(
*web_contents) {}
ChromeRLZTrackerWebContentsObserver::~ChromeRLZTrackerWebContentsObserver() =
default;
// static
void ChromeRLZTrackerWebContentsObserver::CreateForWebContentsIfNeeded(
content::WebContents* web_contents) {
if (rlz::RLZTracker::ShouldRecordChromeHomePageSearch()) {
CreateForWebContents(web_contents);
}
}
void ChromeRLZTrackerWebContentsObserver::NavigationEntryCommitted(
const content::LoadCommittedDetails& load_details) {
if (load_details.entry == nullptr) {
return;
}
// Remove the observer if we have recorded the search in other web contents.
if (!rlz::RLZTracker::ShouldRecordChromeHomePageSearch()) {
web_contents()->RemoveUserData(UserDataKey());
return;
}
// Firstly check if it is a Google search.
if (google_util::IsGoogleSearchUrl(load_details.entry->GetURL())) {
// If it is a Google search, check if it originates from HOMEPAGE by getting
// the previous NavigationEntry.
int entry_index =
web_contents()->GetController().GetLastCommittedEntryIndex();
if (entry_index < 1) {
return;
}
content::NavigationEntry* previous_entry =
web_contents()->GetController().GetEntryAtIndex(entry_index - 1);
if (previous_entry == nullptr) {
return;
}
// Make sure it is a Google web page originated from HOMEPAGE.
if (google_util::IsGoogleHomePageUrl(previous_entry->GetURL()) &&
((previous_entry->GetTransitionType() &
ui::PAGE_TRANSITION_HOME_PAGE) != 0)) {
rlz::RLZTracker::RecordChromeHomePageSearch();
// Remove the observer since we only need to record the search once.
web_contents()->RemoveUserData(UserDataKey());
}
}
}
WEB_CONTENTS_USER_DATA_KEY_IMPL(ChromeRLZTrackerWebContentsObserver);
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