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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 "components/omnibox/browser/tab_group_provider.h"
#include <algorithm>
#include "base/i18n/case_conversion.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "base/trace_event/trace_event.h"
#include "components/omnibox/common/omnibox_features.h"
#include "components/saved_tab_groups/public/saved_tab_group.h"
#include "components/saved_tab_groups/public/tab_group_sync_service.h"
#if BUILDFLAG(IS_ANDROID)
#include "components/browser_ui/util/android/url_constants.h"
#endif
#include "components/omnibox/browser/autocomplete_enums.h"
#include "components/omnibox/browser/autocomplete_input.h"
#include "components/omnibox/browser/autocomplete_match.h"
#include "components/omnibox/browser/autocomplete_match_classification.h"
#include "components/omnibox/browser/autocomplete_provider_client.h"
#include "components/omnibox/browser/in_memory_url_index_types.h"
#include "components/omnibox/browser/keyword_provider.h"
#include "components/omnibox/browser/match_compare.h"
#include "components/omnibox/browser/omnibox_field_trial.h"
#include "components/omnibox/browser/scoring_functor.h"
#include "components/omnibox/browser/tab_matcher.h"
#include "components/query_parser/query_parser.h"
#include "components/saved_tab_groups/public/saved_tab_group_tab.h"
#include "components/search_engines/template_url.h"
#include "components/strings/grit/components_strings.h"
#include "components/url_formatter/url_formatter.h"
#include "content/public/common/url_constants.h"
#include "third_party/omnibox_proto/groups.pb.h"
#include "ui/base/l10n/l10n_util.h"
#include "url/gurl.h"
namespace {
std::pair<int, std::u16string> Score(
const AutocompleteInput& input,
const query_parser::QueryNodeVector& input_query_nodes,
const tab_groups::SavedTabGroup& group) {
TRACE_EVENT_BEGIN0("omnibox", "TabGroupProvider::Score");
std::u16string matching_url;
// TODO(crbug.com/435705148): Remove this check when unnamed tab groups are
// supported as they may be surfaced through a matching URL with no title.
if (group.title().empty()) {
return {0, matching_url};
}
// Extract query words from the title.
const std::u16string lower_title = base::i18n::ToLower(group.title());
query_parser::QueryWordVector title_words;
query_parser::QueryParser::ExtractQueryWords(lower_title, &title_words);
// Every input term must be included in either (or both) the title or URL.
query_parser::Snippet::MatchPositions title_matches;
query_parser::Snippet::MatchPositions url_matches;
if (!std::ranges::all_of(input_query_nodes, [&](const auto& query_node) {
// Search for a matching URL and early return once one is found but do
// not consider chrome prefixed tabs during matching.
bool has_url_match;
for (auto& saved_tab : group.saved_tabs()) {
#if BUILDFLAG(IS_ANDROID)
if (saved_tab.url().SchemeIs(browser_ui::kChromeUINativeScheme) ||
saved_tab.url().SchemeIs(content::kChromeUIScheme)) {
continue;
}
#endif
const std::u16string lower_url =
base::i18n::ToLower(url_formatter::FormatUrl(
saved_tab.url(),
AutocompleteMatch::GetFormatTypes(
/*preserve_scheme=*/false,
/*preserve_subdomain=*/false),
base::UnescapeRule::SPACES, nullptr, nullptr, nullptr));
query_parser::QueryWordVector url_words;
query_parser::QueryParser::ExtractQueryWords(lower_url, &url_words);
has_url_match = query_node->HasMatchIn(url_words, &url_matches);
if (has_url_match) {
matching_url = lower_url;
break;
}
}
// Using local vars so to not short circuit adding URL matches when
// title matches are found.
const bool has_title_match =
query_node->HasMatchIn(title_words, &title_matches);
return has_title_match || has_url_match;
})) {
return {0, matching_url};
}
// Max score is based on these suggestions sharing a group with open tab
// matches.
const int kMaxScore = 1000;
const double title_factor =
for_each(title_matches.begin(), title_matches.end(),
ScoringFunctor(lower_title.length()))
.ScoringFactor();
const double url_factor = for_each(url_matches.begin(), url_matches.end(),
ScoringFunctor(matching_url.length()))
.ScoringFactor();
const double normalized_factors =
std::min((title_factor + url_factor) / (lower_title.length() + 10), 1.0);
TRACE_EVENT_END0("omnibox", "TabGroupProvider::Score");
return {normalized_factors * kMaxScore, matching_url};
}
} // namespace
TabGroupProvider::TabGroupProvider(AutocompleteProviderClient* client)
: AutocompleteProvider(AutocompleteProvider::TYPE_OPEN_TAB),
client_(client) {}
TabGroupProvider::~TabGroupProvider() = default;
// TODO(crbug.com/412433887): Make the TabGroupProvider async.
void TabGroupProvider::Start(const AutocompleteInput& input,
bool minimal_changes) {
Stop(AutocompleteStopReason::kClobbered);
if (input.current_page_classification() !=
::metrics::OmniboxEventProto::ANDROID_HUB ||
client_->IsOffTheRecord()) {
return;
}
TRACE_EVENT_BEGIN0("omnibox", "TabGroupProvider::Start");
// Remove the keyword from input if we're in keyword mode for a starter pack
// engine.
const auto& [adjusted_input, template_url] =
AdjustInputForStarterPackKeyword(input, client_->GetTemplateURLService());
// Preprocess the query into query nodes.
const auto adjusted_input_text = std::u16string(
base::TrimWhitespace(base::i18n::ToLower(adjusted_input.text()),
base::TrimPositions::TRIM_ALL));
query_parser::QueryNodeVector input_query_nodes;
query_parser::QueryParser::ParseQueryNodes(
adjusted_input_text,
query_parser::MatchingAlgorithm::ALWAYS_PREFIX_SEARCH,
&input_query_nodes);
for (auto& group : client_->GetTabGroupSyncService()->GetAllGroups()) {
const auto [score, matching_url] = Score(input, input_query_nodes, group);
if (score > 0) {
matches_.push_back(
CreateTabGroupMatch(input, group, score, matching_url));
}
}
TRACE_EVENT_END0("omnibox", "TabGroupProvider::Start");
}
AutocompleteMatch TabGroupProvider::CreateTabGroupMatch(
const AutocompleteInput& input,
const tab_groups::SavedTabGroup& group,
int score,
const std::u16string& matching_url) {
AutocompleteMatch match(this, score, /*deletable=*/false,
AutocompleteMatchType::TAB_GROUP);
match.contents = group.title();
auto contents_terms = FindTermMatches(input.text(), match.contents);
match.contents_class = ClassifyTermMatches(
contents_terms, match.contents.size(), ACMatchClassification::MATCH,
ACMatchClassification::NONE);
match.matching_tab_group_uuid = group.saved_guid();
match.suggestion_group_id = omnibox::GROUP_MOBILE_OPEN_TABS;
match.image_dominant_color =
base::NumberToString(static_cast<int>(group.color()));
std::u16string url_list;
for (auto& saved_tab : group.saved_tabs()) {
#if BUILDFLAG(IS_ANDROID)
// Skip showing chrome-prefixed tabs.
if (saved_tab.url().SchemeIs(browser_ui::kChromeUINativeScheme) ||
saved_tab.url().SchemeIs(content::kChromeUIScheme)) {
continue;
}
#endif
const std::u16string url = url_formatter::FormatUrl(
saved_tab.url(),
AutocompleteMatch::GetFormatTypes(/*preserve_scheme=*/false,
/*preserve_subdomain=*/false),
base::UnescapeRule::SPACES, nullptr, nullptr, nullptr);
// Place the matching URL at the front of the list.
if (!matching_url.empty() && url == matching_url) {
url_list.insert(0, u", ");
url_list.insert(0, url);
} else {
url_list.append(url);
url_list.append(u", ");
}
}
// Remove the last comma and space from the string.
if (!url_list.empty()) {
url_list.erase(url_list.size() - 2);
}
match.description = url_list;
auto description_terms = FindTermMatches(input.text(), match.description);
match.description_class = ClassifyTermMatches(
description_terms, match.description.size(),
ACMatchClassification::MATCH | ACMatchClassification::URL,
ACMatchClassification::URL);
match.has_tab_match = true;
return match;
}
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